Fix: add dependencies

demo/filebrowser-durandal-widget/lib/knockout/.bower.json

@@ -0,0 +1,35 @@
+{
+  "name": "knockout",
+  "homepage": "http://knockoutjs.com/",
+  "description": "Knockout makes it easier to create rich, responsive UIs with JavaScript",
+  "main": "dist/knockout.js",
+  "moduleType": [
+    "amd",
+    "globals",
+    "node"
+  ],
+  "keywords": [
+    "knockout",
+    "mvvm",
+    "mvc",
+    "spa"
+  ],
+  "license": "MIT",
+  "ignore": [
+    "**/.*",
+    "node_modules",
+    "bower_components",
+    "spec",
+    "build/output"
+  ],
+  "version": "3.4.2",
+  "_release": "3.4.2",
+  "_resolution": {
+    "type": "version",
+    "tag": "v3.4.2",
+    "commit": "8f320dffc83f2c8f3622532fff1b3ac216b69c6c"
+  },
+  "_source": "https://github.com/SteveSanderson/knockout.git",
+  "_target": ">=2.3.0",
+  "_originalSource": "knockout"
+}

demo/filebrowser-durandal-widget/lib/knockout/Gruntfile.js

@@ -0,0 +1,174 @@
+/*global module:false*/
+module.exports = function(grunt) {
+    var _ = grunt.util._;
+
+    // Project configuration
+    grunt.initConfig({
+        // Metadata
+        pkg: grunt.file.readJSON('package.json'),
+        fragments: './build/fragments/',
+        banner: '/*!\n' +
+                ' * Knockout JavaScript library v<%= pkg.version %>\n' +
+                ' * (c) The Knockout.js team - <%= pkg.homepage %>\n' +
+                ' * License: <%= pkg.licenses[0].type %> (<%= pkg.licenses[0].url %>)\n' +
+                ' */\n\n',
+
+        checktrailingspaces: {
+            main: {
+                src: [
+                    "**/*.{js,html,css,bat,ps1,sh}",
+                    "!build/output/**",
+                    "!node_modules/**"
+                ],
+                filter: 'isFile'
+            }
+        },
+        build: {
+            debug: './build/output/knockout-latest.debug.js',
+            min: './build/output/knockout-latest.js'
+        },
+        dist: {
+            debug: './dist/knockout.debug.js',
+            min: './dist/knockout.js'
+        },
+        test: {
+            phantomjs: 'spec/runner.phantom.js',
+            node: 'spec/runner.node.js'
+        }
+    });
+
+    grunt.registerTask('clean', 'Clean up output files.', function (target) {
+        var output = grunt.config('build');
+        var files = [ output.debug, output.min ];
+        var options = { force: (target == 'force') };
+        _.forEach(files, function (file) {
+            if (grunt.file.exists(file))
+                grunt.file.delete(file, options);
+        });
+        return !this.errorCount;
+    });
+
+    var trailingSpaceRegex = /[ ]$/;
+    grunt.registerMultiTask('checktrailingspaces', 'checktrailingspaces', function() {
+        var matches = [];
+        this.files[0].src.forEach(function(filepath) {
+            var content = grunt.file.read(filepath),
+                lines = content.split(/\r*\n/);
+            lines.forEach(function(line, index) {
+                if (trailingSpaceRegex.test(line)) {
+                    matches.push([filepath, (index+1), line].join(':'));
+                }
+            });
+        });
+        if (matches.length) {
+            grunt.log.error("The following files have trailing spaces that need to be cleaned up:");
+            grunt.log.writeln(matches.join('\n'));
+            return false;
+        }
+    });
+
+    function getReferencedSources(sourceReferencesFilename) {
+        // Returns the array of filenames referenced by a file like source-references.js
+        var result;
+        global.knockoutDebugCallback = function(sources) { result = sources; };
+        eval(grunt.file.read(sourceReferencesFilename));
+        return result;
+    }
+
+    function getCombinedSources() {
+        var fragments = grunt.config('fragments'),
+            sourceFilenames = [
+                fragments + 'extern-pre.js',
+                fragments + 'amd-pre.js',
+                getReferencedSources(fragments + 'source-references.js'),
+                fragments + 'amd-post.js',
+                fragments + 'extern-post.js'
+            ],
+            flattenedSourceFilenames = Array.prototype.concat.apply([], sourceFilenames),
+            combinedSources = flattenedSourceFilenames.map(function(filename) {
+                return grunt.file.read('./' + filename);
+            }).join('');
+
+        return combinedSources.replace('##VERSION##', grunt.config('pkg.version'));
+    }
+
+    function buildDebug(output) {
+        var source = [];
+        source.push(grunt.config('banner'));
+        source.push('(function(){\n');
+        source.push('var DEBUG=true;\n');
+        source.push(getCombinedSources());
+        source.push('})();\n');
+        grunt.file.write(output, source.join('').replace(/\r\n/g, '\n'));
+    }
+
+    function buildMin(output, done) {
+        var cc = require('closure-compiler');
+        var options = {
+            compilation_level: 'ADVANCED_OPTIMIZATIONS',
+            output_wrapper: '(function() {%output%})();'
+        };
+        grunt.log.write('Compiling...');
+        cc.compile('/**@const*/var DEBUG=false;' + getCombinedSources(), options, function (err, stdout, stderr) {
+            if (err) {
+                grunt.log.error(err);
+                done(false);
+            } else {
+                grunt.log.ok();
+                grunt.file.write(output, (grunt.config('banner') + stdout).replace(/\r\n/g, '\n'));
+                done(true);
+            }
+        });
+    }
+
+    grunt.registerMultiTask('build', 'Build', function() {
+        if (!this.errorCount) {
+            var output = this.data;
+            if (this.target === 'debug') {
+                buildDebug(output);
+            } else if (this.target === 'min') {
+                buildMin(output, this.async());
+            }
+        }
+        return !this.errorCount;
+    });
+
+    grunt.registerMultiTask('test', 'Run tests', function () {
+        var done = this.async();
+        grunt.util.spawn({ cmd: this.target, args: [this.data] },
+            function (error, result, code) {
+                if (code === 127 /*not found*/) {
+                    grunt.verbose.error(result.stderr);
+                    // ignore this error
+                    done(true);
+                } else {
+                    grunt.log.writeln(result.stdout);
+                    if (error)
+                        grunt.log.error(result.stderr);
+                    done(!error);
+                }
+            }
+        );
+    });
+
+    grunt.registerTask('dist', function() {
+        var version = grunt.config('pkg.version'),
+            buildConfig = grunt.config('build'),
+            distConfig = grunt.config('dist');
+        grunt.file.copy(buildConfig.debug, distConfig.debug);
+        grunt.file.copy(buildConfig.min, distConfig.min);
+
+        console.log('To publish, run:');
+        console.log('    git add bower.json');
+        console.log('    git add -f ' + distConfig.debug);
+        console.log('    git add -f ' + distConfig.min);
+        console.log('    git checkout head');
+        console.log('    git commit -m \'Version ' + version + ' for distribution\'');
+        console.log('    git tag -a v' + version + ' -m \'Add tag v' + version + '\'');
+        console.log('    git checkout master');
+        console.log('    git push origin --tags');
+    });
+
+    // Default task.
+    grunt.registerTask('default', ['clean', 'checktrailingspaces', 'build', 'test']);
+};

demo/filebrowser-durandal-widget/lib/knockout/LICENSE

@@ -0,0 +1,22 @@
+The MIT License (MIT) - http://www.opensource.org/licenses/mit-license.php
+
+Copyright (c) Steven Sanderson, the Knockout.js team, and other contributors
+http://knockoutjs.com/
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

demo/filebrowser-durandal-widget/lib/knockout/README.md

@@ -0,0 +1,50 @@
+**Knockout** is a JavaScript [MVVM](http://en.wikipedia.org/wiki/Model_View_ViewModel) (a modern variant of MVC) library that makes it easier to create rich, desktop-like user interfaces with JavaScript and HTML. It uses *observers* to make your UI automatically stay in sync with an underlying data model, along with a powerful and extensible set of *declarative bindings* to enable productive development.
+
+##Getting started
+
+[![Join the chat at https://gitter.im/knockout/knockout](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/knockout/knockout?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+**Totally new to Knockout?** The most fun place to start is the [online interactive tutorials](http://learn.knockoutjs.com/).
+
+For more details, see
+
+ * Documentation on [the project's website](http://knockoutjs.com/documentation/introduction.html)
+ * Online examples at [http://knockoutjs.com/examples/](http://knockoutjs.com/examples/)
+
+##Downloading Knockout
+
+You can [download released versions of Knockout](http://knockoutjs.com/downloads/) from the project's website.
+
+For Node.js developers, Knockout is also available from [npm](https://npmjs.org/) - just run `npm install knockout`.
+
+##Building Knockout from sources
+
+If you prefer to build the library yourself:
+
+ 1. **Clone the repo from GitHub**
+
+        git clone https://github.com/knockout/knockout.git
+        cd knockout
+
+ 2. **Acquire build dependencies.** Make sure you have [Node.js](http://nodejs.org/) installed on your workstation. This is only needed to _build_ Knockout from sources. Knockout itself has no dependency on Node.js once it is built (it works with any server technology or none). Now run:
+
+        npm install -g grunt-cli
+        npm install
+
+    The first `npm` command sets up the popular [Grunt](http://gruntjs.com/) build tool. You might need to run this command with `sudo` if you're on Linux or Mac OS X, or in an Administrator command prompt on Windows. The second `npm` command fetches the remaining build dependencies.
+
+ 3. **Run the build tool**
+
+        grunt
+
+    Now you'll find the built files in `build/output/`.
+
+## Running the tests
+
+If you have [phantomjs](http://phantomjs.org/download.html) installed, then the `grunt` script will automatically run the specification suite and report its results.
+
+Or, if you want to run the specs in a browser (e.g., for debugging), simply open `spec/runner.html` in your browser.
+
+##License
+
+MIT license - [http://www.opensource.org/licenses/mit-license.php](http://www.opensource.org/licenses/mit-license.php)

demo/filebrowser-durandal-widget/lib/knockout/bower.json

@@ -0,0 +1,25 @@
+{
+  "name": "knockout",
+  "homepage": "http://knockoutjs.com/",
+  "description": "Knockout makes it easier to create rich, responsive UIs with JavaScript",
+  "main": "dist/knockout.js",
+  "moduleType": [
+    "amd",
+    "globals",
+    "node"
+  ],
+  "keywords": [
+    "knockout",
+    "mvvm",
+    "mvc",
+    "spa"
+  ],
+  "license": "MIT",
+  "ignore": [
+    "**/.*",
+    "node_modules",
+    "bower_components",
+    "spec",
+    "build/output"
+  ]
+}

demo/filebrowser-durandal-widget/lib/knockout/build/fragments/amd-post.js

@@ -0,0 +1 @@
+}));

demo/filebrowser-durandal-widget/lib/knockout/build/fragments/amd-pre.js

@@ -0,0 +1,13 @@
+(function(factory) {
+    // Support three module loading scenarios
+    if (typeof define === 'function' && define['amd']) {
+        // [1] AMD anonymous module
+        define(['exports', 'require'], factory);
+    } else if (typeof exports === 'object' && typeof module === 'object') {
+        // [2] CommonJS/Node.js
+        factory(module['exports'] || exports);  // module.exports is for Node.js
+    } else {
+        // [3] No module loader (plain <script> tag) - put directly in global namespace
+        factory(window['ko'] = {});
+    }
+}(function(koExports, amdRequire){

demo/filebrowser-durandal-widget/lib/knockout/build/fragments/extern-post.js

@@ -0,0 +1 @@
+}());

demo/filebrowser-durandal-widget/lib/knockout/build/fragments/extern-pre.js

@@ -0,0 +1,8 @@
+(function(undefined){
+    // (0, eval)('this') is a robust way of getting a reference to the global object
+    // For details, see http://stackoverflow.com/questions/14119988/return-this-0-evalthis/14120023#14120023
+    var window = this || (0, eval)('this'),
+        document = window['document'],
+        navigator = window['navigator'],
+        jQueryInstance = window["jQuery"],
+        JSON = window["JSON"];

demo/filebrowser-durandal-widget/lib/knockout/build/fragments/source-references.js

@@ -0,0 +1,57 @@
+knockoutDebugCallback([
+    'src/namespace.js',
+    'src/google-closure-compiler-utils.js',
+    'src/version.js',
+    'src/options.js',
+    'src/utils.js',
+    'src/utils.domData.js',
+    'src/utils.domNodeDisposal.js',
+    'src/utils.domManipulation.js',
+    'src/memoization.js',
+    'src/tasks.js',
+    'src/subscribables/extenders.js',
+    'src/subscribables/subscribable.js',
+    'src/subscribables/dependencyDetection.js',
+    'src/subscribables/observable.js',
+    'src/subscribables/observableArray.js',
+    'src/subscribables/observableArray.changeTracking.js',
+    'src/subscribables/dependentObservable.js',
+    'src/subscribables/mappingHelpers.js',
+    'src/binding/selectExtensions.js',
+    'src/binding/expressionRewriting.js',
+    'src/virtualElements.js',
+    'src/binding/bindingProvider.js',
+    'src/binding/bindingAttributeSyntax.js',
+    'src/components/loaderRegistry.js',
+    'src/components/defaultLoader.js',
+    'src/components/customElements.js',
+    'src/components/componentBinding.js',
+    'src/binding/defaultBindings/attr.js',
+    'src/binding/defaultBindings/checked.js',
+    'src/binding/defaultBindings/css.js',
+    'src/binding/defaultBindings/enableDisable.js',
+    'src/binding/defaultBindings/event.js',
+    'src/binding/defaultBindings/foreach.js',
+    'src/binding/defaultBindings/hasfocus.js',
+    'src/binding/defaultBindings/html.js',
+    'src/binding/defaultBindings/ifIfnotWith.js',
+    'src/binding/defaultBindings/options.js',
+    'src/binding/defaultBindings/selectedOptions.js',
+    'src/binding/defaultBindings/style.js',
+    'src/binding/defaultBindings/submit.js',
+    'src/binding/defaultBindings/text.js',
+    'src/binding/defaultBindings/textInput.js',
+    'src/binding/defaultBindings/uniqueName.js',
+    'src/binding/defaultBindings/value.js',
+    'src/binding/defaultBindings/visible.js',
+    // click depends on event - The order matters for specs, which includes each file individually
+    'src/binding/defaultBindings/click.js',
+    'src/templating/templateEngine.js',
+    'src/templating/templateRewriting.js',
+    'src/templating/templateSources.js',
+    'src/templating/templating.js',
+    'src/binding/editDetection/compareArrays.js',
+    'src/binding/editDetection/arrayToDomNodeChildren.js',
+    'src/templating/native/nativeTemplateEngine.js',
+    'src/templating/jquery.tmpl/jqueryTmplTemplateEngine.js'
+]);

demo/filebrowser-durandal-widget/lib/knockout/build/knockout-raw.js

@@ -0,0 +1,34 @@
+var DEBUG = true,
+    // ensure these variables are defined (even if their values are undefined)
+    jQueryInstance = window.jQuery, // Use a different variable name (not 'jQuery') to avoid overwriting window.jQuery with 'undefined' on IE < 9
+    amdRequire = window.require;
+
+// This script adds <script> tags referencing each of the knockout.js source files in the correct order
+// It uses JSONP to fetch the list of source files from source-references.js
+(function () {
+    var debugFileName = "build/knockout-raw.js";
+    var sourcesReferenceFile = "build/fragments/source-references.js";
+
+    function getPathToScriptTagSrc(scriptTagSrc) {
+        scriptTagSrc = "/" + scriptTagSrc.toLowerCase();
+        var scriptTags = document.getElementsByTagName("SCRIPT");
+        for (var i = 0; i < scriptTags.length; i++) {
+            var src = scriptTags[i].src;
+            var index = src.toLowerCase().indexOf(scriptTagSrc);
+            if ((index >= 0) && index == (src.length - scriptTagSrc.length))
+                return src.substring(0, index + 1);
+        }
+        throw "Cannot find script tag referencing " + scriptTagSrc;
+    };
+
+    function referenceScript(url) {
+        document.write("<script src='" + url + "' type='text/javascript'></script>");
+    };
+
+    var buildFolderPath = getPathToScriptTagSrc(debugFileName);
+    window.knockoutDebugCallback = function (scriptUrls) {
+        for (var i = 0; i < scriptUrls.length; i++)
+            referenceScript(buildFolderPath + scriptUrls[i]);
+    };
+    referenceScript(buildFolderPath + sourcesReferenceFile);
+})();

demo/filebrowser-durandal-widget/lib/knockout/dist/knockout.js

@@ -0,0 +1,124 @@
+/*!
+ * Knockout JavaScript library v3.4.2
+ * (c) The Knockout.js team - http://knockoutjs.com/
+ * License: MIT (http://www.opensource.org/licenses/mit-license.php)
+ */
+
+(function() {(function(n){var x=this||(0,eval)("this"),t=x.document,M=x.navigator,u=x.jQuery,H=x.JSON;(function(n){"function"===typeof define&&define.amd?define(["exports","require"],n):"object"===typeof exports&&"object"===typeof module?n(module.exports||exports):n(x.ko={})})(function(N,O){function J(a,c){return null===a||typeof a in R?a===c:!1}function S(b,c){var d;return function(){d||(d=a.a.setTimeout(function(){d=n;b()},c))}}function T(b,c){var d;return function(){clearTimeout(d);d=a.a.setTimeout(b,c)}}function U(a,
+c){c&&c!==E?"beforeChange"===c?this.Ob(a):this.Ja(a,c):this.Pb(a)}function V(a,c){null!==c&&c.k&&c.k()}function W(a,c){var d=this.Mc,e=d[s];e.T||(this.ob&&this.Oa[c]?(d.Sb(c,a,this.Oa[c]),this.Oa[c]=null,--this.ob):e.s[c]||d.Sb(c,a,e.t?{$:a}:d.yc(a)),a.Ha&&a.Hc())}function K(b,c,d,e){a.d[b]={init:function(b,g,h,l,m){var k,r;a.m(function(){var q=g(),p=a.a.c(q),p=!d!==!p,A=!r;if(A||c||p!==k)A&&a.xa.Ca()&&(r=a.a.wa(a.f.childNodes(b),!0)),p?(A||a.f.fa(b,a.a.wa(r)),a.hb(e?e(m,q):m,b)):a.f.za(b),k=p},null,
+{i:b});return{controlsDescendantBindings:!0}}};a.h.va[b]=!1;a.f.aa[b]=!0}var a="undefined"!==typeof N?N:{};a.b=function(b,c){for(var d=b.split("."),e=a,f=0;f<d.length-1;f++)e=e[d[f]];e[d[d.length-1]]=c};a.H=function(a,c,d){a[c]=d};a.version="3.4.2";a.b("version",a.version);a.options={deferUpdates:!1,useOnlyNativeEvents:!1};a.a=function(){function b(a,b){for(var c in a)a.hasOwnProperty(c)&&b(c,a[c])}function c(a,b){if(b)for(var c in b)b.hasOwnProperty(c)&&(a[c]=b[c]);return a}function d(a,b){a.__proto__=
+b;return a}function e(b,c,d,e){var m=b[c].match(r)||[];a.a.r(d.match(r),function(b){a.a.ra(m,b,e)});b[c]=m.join(" ")}var f={__proto__:[]}instanceof Array,g="function"===typeof Symbol,h={},l={};h[M&&/Firefox\/2/i.test(M.userAgent)?"KeyboardEvent":"UIEvents"]=["keyup","keydown","keypress"];h.MouseEvents="click dblclick mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave".split(" ");b(h,function(a,b){if(b.length)for(var c=0,d=b.length;c<d;c++)l[b[c]]=a});var m={propertychange:!0},k=
+t&&function(){for(var a=3,b=t.createElement("div"),c=b.getElementsByTagName("i");b.innerHTML="\x3c!--[if gt IE "+ ++a+"]><i></i><![endif]--\x3e",c[0];);return 4<a?a:n}(),r=/\S+/g;return{gc:["authenticity_token",/^__RequestVerificationToken(_.*)?$/],r:function(a,b){for(var c=0,d=a.length;c<d;c++)b(a[c],c)},o:function(a,b){if("function"==typeof Array.prototype.indexOf)return Array.prototype.indexOf.call(a,b);for(var c=0,d=a.length;c<d;c++)if(a[c]===b)return c;return-1},Vb:function(a,b,c){for(var d=
+0,e=a.length;d<e;d++)if(b.call(c,a[d],d))return a[d];return null},Na:function(b,c){var d=a.a.o(b,c);0<d?b.splice(d,1):0===d&&b.shift()},Wb:function(b){b=b||[];for(var c=[],d=0,e=b.length;d<e;d++)0>a.a.o(c,b[d])&&c.push(b[d]);return c},ib:function(a,b){a=a||[];for(var c=[],d=0,e=a.length;d<e;d++)c.push(b(a[d],d));return c},Ma:function(a,b){a=a||[];for(var c=[],d=0,e=a.length;d<e;d++)b(a[d],d)&&c.push(a[d]);return c},ta:function(a,b){if(b instanceof Array)a.push.apply(a,b);else for(var c=0,d=b.length;c<
+d;c++)a.push(b[c]);return a},ra:function(b,c,d){var e=a.a.o(a.a.Bb(b),c);0>e?d&&b.push(c):d||b.splice(e,1)},la:f,extend:c,$a:d,ab:f?d:c,D:b,Ea:function(a,b){if(!a)return a;var c={},d;for(d in a)a.hasOwnProperty(d)&&(c[d]=b(a[d],d,a));return c},rb:function(b){for(;b.firstChild;)a.removeNode(b.firstChild)},nc:function(b){b=a.a.W(b);for(var c=(b[0]&&b[0].ownerDocument||t).createElement("div"),d=0,e=b.length;d<e;d++)c.appendChild(a.ba(b[d]));return c},wa:function(b,c){for(var d=0,e=b.length,m=[];d<e;d++){var k=
+b[d].cloneNode(!0);m.push(c?a.ba(k):k)}return m},fa:function(b,c){a.a.rb(b);if(c)for(var d=0,e=c.length;d<e;d++)b.appendChild(c[d])},uc:function(b,c){var d=b.nodeType?[b]:b;if(0<d.length){for(var e=d[0],m=e.parentNode,k=0,f=c.length;k<f;k++)m.insertBefore(c[k],e);k=0;for(f=d.length;k<f;k++)a.removeNode(d[k])}},Ba:function(a,b){if(a.length){for(b=8===b.nodeType&&b.parentNode||b;a.length&&a[0].parentNode!==b;)a.splice(0,1);for(;1<a.length&&a[a.length-1].parentNode!==b;)a.length--;if(1<a.length){var c=
+a[0],d=a[a.length-1];for(a.length=0;c!==d;)a.push(c),c=c.nextSibling;a.push(d)}}return a},wc:function(a,b){7>k?a.setAttribute("selected",b):a.selected=b},cb:function(a){return null===a||a===n?"":a.trim?a.trim():a.toString().replace(/^[\s\xa0]+|[\s\xa0]+$/g,"")},sd:function(a,b){a=a||"";return b.length>a.length?!1:a.substring(0,b.length)===b},Rc:function(a,b){if(a===b)return!0;if(11===a.nodeType)return!1;if(b.contains)return b.contains(3===a.nodeType?a.parentNode:a);if(b.compareDocumentPosition)return 16==
+(b.compareDocumentPosition(a)&16);for(;a&&a!=b;)a=a.parentNode;return!!a},qb:function(b){return a.a.Rc(b,b.ownerDocument.documentElement)},Tb:function(b){return!!a.a.Vb(b,a.a.qb)},A:function(a){return a&&a.tagName&&a.tagName.toLowerCase()},Zb:function(b){return a.onError?function(){try{return b.apply(this,arguments)}catch(c){throw a.onError&&a.onError(c),c;}}:b},setTimeout:function(b,c){return setTimeout(a.a.Zb(b),c)},dc:function(b){setTimeout(function(){a.onError&&a.onError(b);throw b;},0)},q:function(b,
+c,d){var e=a.a.Zb(d);d=k&&m[c];if(a.options.useOnlyNativeEvents||d||!u)if(d||"function"!=typeof b.addEventListener)if("undefined"!=typeof b.attachEvent){var f=function(a){e.call(b,a)},l="on"+c;b.attachEvent(l,f);a.a.G.qa(b,function(){b.detachEvent(l,f)})}else throw Error("Browser doesn't support addEventListener or attachEvent");else b.addEventListener(c,e,!1);else u(b).bind(c,e)},Fa:function(b,c){if(!b||!b.nodeType)throw Error("element must be a DOM node when calling triggerEvent");var d;"input"===
+a.a.A(b)&&b.type&&"click"==c.toLowerCase()?(d=b.type,d="checkbox"==d||"radio"==d):d=!1;if(a.options.useOnlyNativeEvents||!u||d)if("function"==typeof t.createEvent)if("function"==typeof b.dispatchEvent)d=t.createEvent(l[c]||"HTMLEvents"),d.initEvent(c,!0,!0,x,0,0,0,0,0,!1,!1,!1,!1,0,b),b.dispatchEvent(d);else throw Error("The supplied element doesn't support dispatchEvent");else if(d&&b.click)b.click();else if("undefined"!=typeof b.fireEvent)b.fireEvent("on"+c);else throw Error("Browser doesn't support triggering events");
+else u(b).trigger(c)},c:function(b){return a.I(b)?b():b},Bb:function(b){return a.I(b)?b.p():b},fb:function(b,c,d){var k;c&&("object"===typeof b.classList?(k=b.classList[d?"add":"remove"],a.a.r(c.match(r),function(a){k.call(b.classList,a)})):"string"===typeof b.className.baseVal?e(b.className,"baseVal",c,d):e(b,"className",c,d))},bb:function(b,c){var d=a.a.c(c);if(null===d||d===n)d="";var e=a.f.firstChild(b);!e||3!=e.nodeType||a.f.nextSibling(e)?a.f.fa(b,[b.ownerDocument.createTextNode(d)]):e.data=
+d;a.a.Wc(b)},vc:function(a,b){a.name=b;if(7>=k)try{a.mergeAttributes(t.createElement("<input name='"+a.name+"'/>"),!1)}catch(c){}},Wc:function(a){9<=k&&(a=1==a.nodeType?a:a.parentNode,a.style&&(a.style.zoom=a.style.zoom))},Sc:function(a){if(k){var b=a.style.width;a.style.width=0;a.style.width=b}},nd:function(b,c){b=a.a.c(b);c=a.a.c(c);for(var d=[],e=b;e<=c;e++)d.push(e);return d},W:function(a){for(var b=[],c=0,d=a.length;c<d;c++)b.push(a[c]);return b},bc:function(a){return g?Symbol(a):a},xd:6===k,
+yd:7===k,C:k,ic:function(b,c){for(var d=a.a.W(b.getElementsByTagName("input")).concat(a.a.W(b.getElementsByTagName("textarea"))),e="string"==typeof c?function(a){return a.name===c}:function(a){return c.test(a.name)},k=[],m=d.length-1;0<=m;m--)e(d[m])&&k.push(d[m]);return k},kd:function(b){return"string"==typeof b&&(b=a.a.cb(b))?H&&H.parse?H.parse(b):(new Function("return "+b))():null},Gb:function(b,c,d){if(!H||!H.stringify)throw Error("Cannot find JSON.stringify(). Some browsers (e.g., IE < 8) don't support it natively, but you can overcome this by adding a script reference to json2.js, downloadable from http://www.json.org/json2.js");
+return H.stringify(a.a.c(b),c,d)},ld:function(c,d,e){e=e||{};var k=e.params||{},m=e.includeFields||this.gc,f=c;if("object"==typeof c&&"form"===a.a.A(c))for(var f=c.action,l=m.length-1;0<=l;l--)for(var g=a.a.ic(c,m[l]),h=g.length-1;0<=h;h--)k[g[h].name]=g[h].value;d=a.a.c(d);var r=t.createElement("form");r.style.display="none";r.action=f;r.method="post";for(var n in d)c=t.createElement("input"),c.type="hidden",c.name=n,c.value=a.a.Gb(a.a.c(d[n])),r.appendChild(c);b(k,function(a,b){var c=t.createElement("input");
+c.type="hidden";c.name=a;c.value=b;r.appendChild(c)});t.body.appendChild(r);e.submitter?e.submitter(r):r.submit();setTimeout(function(){r.parentNode.removeChild(r)},0)}}}();a.b("utils",a.a);a.b("utils.arrayForEach",a.a.r);a.b("utils.arrayFirst",a.a.Vb);a.b("utils.arrayFilter",a.a.Ma);a.b("utils.arrayGetDistinctValues",a.a.Wb);a.b("utils.arrayIndexOf",a.a.o);a.b("utils.arrayMap",a.a.ib);a.b("utils.arrayPushAll",a.a.ta);a.b("utils.arrayRemoveItem",a.a.Na);a.b("utils.extend",a.a.extend);a.b("utils.fieldsIncludedWithJsonPost",
+a.a.gc);a.b("utils.getFormFields",a.a.ic);a.b("utils.peekObservable",a.a.Bb);a.b("utils.postJson",a.a.ld);a.b("utils.parseJson",a.a.kd);a.b("utils.registerEventHandler",a.a.q);a.b("utils.stringifyJson",a.a.Gb);a.b("utils.range",a.a.nd);a.b("utils.toggleDomNodeCssClass",a.a.fb);a.b("utils.triggerEvent",a.a.Fa);a.b("utils.unwrapObservable",a.a.c);a.b("utils.objectForEach",a.a.D);a.b("utils.addOrRemoveItem",a.a.ra);a.b("utils.setTextContent",a.a.bb);a.b("unwrap",a.a.c);Function.prototype.bind||(Function.prototype.bind=
+function(a){var c=this;if(1===arguments.length)return function(){return c.apply(a,arguments)};var d=Array.prototype.slice.call(arguments,1);return function(){var e=d.slice(0);e.push.apply(e,arguments);return c.apply(a,e)}});a.a.e=new function(){function a(b,g){var h=b[d];if(!h||"null"===h||!e[h]){if(!g)return n;h=b[d]="ko"+c++;e[h]={}}return e[h]}var c=0,d="__ko__"+(new Date).getTime(),e={};return{get:function(c,d){var e=a(c,!1);return e===n?n:e[d]},set:function(c,d,e){if(e!==n||a(c,!1)!==n)a(c,!0)[d]=
+e},clear:function(a){var b=a[d];return b?(delete e[b],a[d]=null,!0):!1},J:function(){return c++ +d}}};a.b("utils.domData",a.a.e);a.b("utils.domData.clear",a.a.e.clear);a.a.G=new function(){function b(b,c){var e=a.a.e.get(b,d);e===n&&c&&(e=[],a.a.e.set(b,d,e));return e}function c(d){var e=b(d,!1);if(e)for(var e=e.slice(0),l=0;l<e.length;l++)e[l](d);a.a.e.clear(d);a.a.G.cleanExternalData(d);if(f[d.nodeType])for(e=d.firstChild;d=e;)e=d.nextSibling,8===d.nodeType&&c(d)}var d=a.a.e.J(),e={1:!0,8:!0,9:!0},
+f={1:!0,9:!0};return{qa:function(a,c){if("function"!=typeof c)throw Error("Callback must be a function");b(a,!0).push(c)},tc:function(c,e){var f=b(c,!1);f&&(a.a.Na(f,e),0==f.length&&a.a.e.set(c,d,n))},ba:function(b){if(e[b.nodeType]&&(c(b),f[b.nodeType])){var d=[];a.a.ta(d,b.getElementsByTagName("*"));for(var l=0,m=d.length;l<m;l++)c(d[l])}return b},removeNode:function(b){a.ba(b);b.parentNode&&b.parentNode.removeChild(b)},cleanExternalData:function(a){u&&"function"==typeof u.cleanData&&u.cleanData([a])}}};
+a.ba=a.a.G.ba;a.removeNode=a.a.G.removeNode;a.b("cleanNode",a.ba);a.b("removeNode",a.removeNode);a.b("utils.domNodeDisposal",a.a.G);a.b("utils.domNodeDisposal.addDisposeCallback",a.a.G.qa);a.b("utils.domNodeDisposal.removeDisposeCallback",a.a.G.tc);(function(){var b=[0,"",""],c=[1,"<table>","</table>"],d=[3,"<table><tbody><tr>","</tr></tbody></table>"],e=[1,"<select multiple='multiple'>","</select>"],f={thead:c,tbody:c,tfoot:c,tr:[2,"<table><tbody>","</tbody></table>"],td:d,th:d,option:e,optgroup:e},
+g=8>=a.a.C;a.a.na=function(c,d){var e;if(u)if(u.parseHTML)e=u.parseHTML(c,d)||[];else{if((e=u.clean([c],d))&&e[0]){for(var k=e[0];k.parentNode&&11!==k.parentNode.nodeType;)k=k.parentNode;k.parentNode&&k.parentNode.removeChild(k)}}else{(e=d)||(e=t);var k=e.parentWindow||e.defaultView||x,r=a.a.cb(c).toLowerCase(),q=e.createElement("div"),p;p=(r=r.match(/^<([a-z]+)[ >]/))&&f[r[1]]||b;r=p[0];p="ignored<div>"+p[1]+c+p[2]+"</div>";"function"==typeof k.innerShiv?q.appendChild(k.innerShiv(p)):(g&&e.appendChild(q),
+q.innerHTML=p,g&&q.parentNode.removeChild(q));for(;r--;)q=q.lastChild;e=a.a.W(q.lastChild.childNodes)}return e};a.a.Eb=function(b,c){a.a.rb(b);c=a.a.c(c);if(null!==c&&c!==n)if("string"!=typeof c&&(c=c.toString()),u)u(b).html(c);else for(var d=a.a.na(c,b.ownerDocument),e=0;e<d.length;e++)b.appendChild(d[e])}})();a.b("utils.parseHtmlFragment",a.a.na);a.b("utils.setHtml",a.a.Eb);a.N=function(){function b(c,e){if(c)if(8==c.nodeType){var f=a.N.pc(c.nodeValue);null!=f&&e.push({Qc:c,hd:f})}else if(1==c.nodeType)for(var f=
+0,g=c.childNodes,h=g.length;f<h;f++)b(g[f],e)}var c={};return{yb:function(a){if("function"!=typeof a)throw Error("You can only pass a function to ko.memoization.memoize()");var b=(4294967296*(1+Math.random())|0).toString(16).substring(1)+(4294967296*(1+Math.random())|0).toString(16).substring(1);c[b]=a;return"\x3c!--[ko_memo:"+b+"]--\x3e"},Bc:function(a,b){var f=c[a];if(f===n)throw Error("Couldn't find any memo with ID "+a+". Perhaps it's already been unmemoized.");try{return f.apply(null,b||[]),
+!0}finally{delete c[a]}},Cc:function(c,e){var f=[];b(c,f);for(var g=0,h=f.length;g<h;g++){var l=f[g].Qc,m=[l];e&&a.a.ta(m,e);a.N.Bc(f[g].hd,m);l.nodeValue="";l.parentNode&&l.parentNode.removeChild(l)}},pc:function(a){return(a=a.match(/^\[ko_memo\:(.*?)\]$/))?a[1]:null}}}();a.b("memoization",a.N);a.b("memoization.memoize",a.N.yb);a.b("memoization.unmemoize",a.N.Bc);a.b("memoization.parseMemoText",a.N.pc);a.b("memoization.unmemoizeDomNodeAndDescendants",a.N.Cc);a.Z=function(){function b(){if(e)for(var b=
+e,c=0,m;g<e;)if(m=d[g++]){if(g>b){if(5E3<=++c){g=e;a.a.dc(Error("'Too much recursion' after processing "+c+" task groups."));break}b=e}try{m()}catch(k){a.a.dc(k)}}}function c(){b();g=e=d.length=0}var d=[],e=0,f=1,g=0;return{scheduler:x.MutationObserver?function(a){var b=t.createElement("div");(new MutationObserver(a)).observe(b,{attributes:!0});return function(){b.classList.toggle("foo")}}(c):t&&"onreadystatechange"in t.createElement("script")?function(a){var b=t.createElement("script");b.onreadystatechange=
+function(){b.onreadystatechange=null;t.documentElement.removeChild(b);b=null;a()};t.documentElement.appendChild(b)}:function(a){setTimeout(a,0)},Za:function(b){e||a.Z.scheduler(c);d[e++]=b;return f++},cancel:function(a){a-=f-e;a>=g&&a<e&&(d[a]=null)},resetForTesting:function(){var a=e-g;g=e=d.length=0;return a},rd:b}}();a.b("tasks",a.Z);a.b("tasks.schedule",a.Z.Za);a.b("tasks.runEarly",a.Z.rd);a.Aa={throttle:function(b,c){b.throttleEvaluation=c;var d=null;return a.B({read:b,write:function(e){clearTimeout(d);
+d=a.a.setTimeout(function(){b(e)},c)}})},rateLimit:function(a,c){var d,e,f;"number"==typeof c?d=c:(d=c.timeout,e=c.method);a.gb=!1;f="notifyWhenChangesStop"==e?T:S;a.Wa(function(a){return f(a,d)})},deferred:function(b,c){if(!0!==c)throw Error("The 'deferred' extender only accepts the value 'true', because it is not supported to turn deferral off once enabled.");b.gb||(b.gb=!0,b.Wa(function(c){var e,f=!1;return function(){if(!f){a.Z.cancel(e);e=a.Z.Za(c);try{f=!0,b.notifySubscribers(n,"dirty")}finally{f=
+!1}}}}))},notify:function(a,c){a.equalityComparer="always"==c?null:J}};var R={undefined:1,"boolean":1,number:1,string:1};a.b("extenders",a.Aa);a.zc=function(b,c,d){this.$=b;this.jb=c;this.Pc=d;this.T=!1;a.H(this,"dispose",this.k)};a.zc.prototype.k=function(){this.T=!0;this.Pc()};a.K=function(){a.a.ab(this,D);D.ub(this)};var E="change",D={ub:function(a){a.F={change:[]};a.Qb=1},Y:function(b,c,d){var e=this;d=d||E;var f=new a.zc(e,c?b.bind(c):b,function(){a.a.Na(e.F[d],f);e.Ka&&e.Ka(d)});e.ua&&e.ua(d);
+e.F[d]||(e.F[d]=[]);e.F[d].push(f);return f},notifySubscribers:function(b,c){c=c||E;c===E&&this.Kb();if(this.Ra(c)){var d=c===E&&this.Fc||this.F[c].slice(0);try{a.l.Xb();for(var e=0,f;f=d[e];++e)f.T||f.jb(b)}finally{a.l.end()}}},Pa:function(){return this.Qb},Zc:function(a){return this.Pa()!==a},Kb:function(){++this.Qb},Wa:function(b){var c=this,d=a.I(c),e,f,g,h;c.Ja||(c.Ja=c.notifySubscribers,c.notifySubscribers=U);var l=b(function(){c.Ha=!1;d&&h===c&&(h=c.Mb?c.Mb():c());var a=f||c.Ua(g,h);f=e=!1;
+a&&c.Ja(g=h)});c.Pb=function(a){c.Fc=c.F[E].slice(0);c.Ha=e=!0;h=a;l()};c.Ob=function(a){e||(g=a,c.Ja(a,"beforeChange"))};c.Hc=function(){c.Ua(g,c.p(!0))&&(f=!0)}},Ra:function(a){return this.F[a]&&this.F[a].length},Xc:function(b){if(b)return this.F[b]&&this.F[b].length||0;var c=0;a.a.D(this.F,function(a,b){"dirty"!==a&&(c+=b.length)});return c},Ua:function(a,c){return!this.equalityComparer||!this.equalityComparer(a,c)},extend:function(b){var c=this;b&&a.a.D(b,function(b,e){var f=a.Aa[b];"function"==
+typeof f&&(c=f(c,e)||c)});return c}};a.H(D,"subscribe",D.Y);a.H(D,"extend",D.extend);a.H(D,"getSubscriptionsCount",D.Xc);a.a.la&&a.a.$a(D,Function.prototype);a.K.fn=D;a.lc=function(a){return null!=a&&"function"==typeof a.Y&&"function"==typeof a.notifySubscribers};a.b("subscribable",a.K);a.b("isSubscribable",a.lc);a.xa=a.l=function(){function b(a){d.push(e);e=a}function c(){e=d.pop()}var d=[],e,f=0;return{Xb:b,end:c,sc:function(b){if(e){if(!a.lc(b))throw Error("Only subscribable things can act as dependencies");
+e.jb.call(e.Lc,b,b.Gc||(b.Gc=++f))}},w:function(a,d,e){try{return b(),a.apply(d,e||[])}finally{c()}},Ca:function(){if(e)return e.m.Ca()},Va:function(){if(e)return e.Va}}}();a.b("computedContext",a.xa);a.b("computedContext.getDependenciesCount",a.xa.Ca);a.b("computedContext.isInitial",a.xa.Va);a.b("ignoreDependencies",a.wd=a.l.w);var F=a.a.bc("_latestValue");a.O=function(b){function c(){if(0<arguments.length)return c.Ua(c[F],arguments[0])&&(c.ia(),c[F]=arguments[0],c.ha()),this;a.l.sc(c);return c[F]}
+c[F]=b;a.a.la||a.a.extend(c,a.K.fn);a.K.fn.ub(c);a.a.ab(c,B);a.options.deferUpdates&&a.Aa.deferred(c,!0);return c};var B={equalityComparer:J,p:function(){return this[F]},ha:function(){this.notifySubscribers(this[F])},ia:function(){this.notifySubscribers(this[F],"beforeChange")}};a.a.la&&a.a.$a(B,a.K.fn);var I=a.O.md="__ko_proto__";B[I]=a.O;a.Qa=function(b,c){return null===b||b===n||b[I]===n?!1:b[I]===c?!0:a.Qa(b[I],c)};a.I=function(b){return a.Qa(b,a.O)};a.Da=function(b){return"function"==typeof b&&
+b[I]===a.O||"function"==typeof b&&b[I]===a.B&&b.$c?!0:!1};a.b("observable",a.O);a.b("isObservable",a.I);a.b("isWriteableObservable",a.Da);a.b("isWritableObservable",a.Da);a.b("observable.fn",B);a.H(B,"peek",B.p);a.H(B,"valueHasMutated",B.ha);a.H(B,"valueWillMutate",B.ia);a.ma=function(b){b=b||[];if("object"!=typeof b||!("length"in b))throw Error("The argument passed when initializing an observable array must be an array, or null, or undefined.");b=a.O(b);a.a.ab(b,a.ma.fn);return b.extend({trackArrayChanges:!0})};
+a.ma.fn={remove:function(b){for(var c=this.p(),d=[],e="function"!=typeof b||a.I(b)?function(a){return a===b}:b,f=0;f<c.length;f++){var g=c[f];e(g)&&(0===d.length&&this.ia(),d.push(g),c.splice(f,1),f--)}d.length&&this.ha();return d},removeAll:function(b){if(b===n){var c=this.p(),d=c.slice(0);this.ia();c.splice(0,c.length);this.ha();return d}return b?this.remove(function(c){return 0<=a.a.o(b,c)}):[]},destroy:function(b){var c=this.p(),d="function"!=typeof b||a.I(b)?function(a){return a===b}:b;this.ia();
+for(var e=c.length-1;0<=e;e--)d(c[e])&&(c[e]._destroy=!0);this.ha()},destroyAll:function(b){return b===n?this.destroy(function(){return!0}):b?this.destroy(function(c){return 0<=a.a.o(b,c)}):[]},indexOf:function(b){var c=this();return a.a.o(c,b)},replace:function(a,c){var d=this.indexOf(a);0<=d&&(this.ia(),this.p()[d]=c,this.ha())}};a.a.la&&a.a.$a(a.ma.fn,a.O.fn);a.a.r("pop push reverse shift sort splice unshift".split(" "),function(b){a.ma.fn[b]=function(){var a=this.p();this.ia();this.Yb(a,b,arguments);
+var d=a[b].apply(a,arguments);this.ha();return d===a?this:d}});a.a.r(["slice"],function(b){a.ma.fn[b]=function(){var a=this();return a[b].apply(a,arguments)}});a.b("observableArray",a.ma);a.Aa.trackArrayChanges=function(b,c){function d(){if(!e){e=!0;l=b.notifySubscribers;b.notifySubscribers=function(a,b){b&&b!==E||++h;return l.apply(this,arguments)};var c=[].concat(b.p()||[]);f=null;g=b.Y(function(d){d=[].concat(d||[]);if(b.Ra("arrayChange")){var e;if(!f||1<h)f=a.a.lb(c,d,b.kb);e=f}c=d;f=null;h=0;
+e&&e.length&&b.notifySubscribers(e,"arrayChange")})}}b.kb={};c&&"object"==typeof c&&a.a.extend(b.kb,c);b.kb.sparse=!0;if(!b.Yb){var e=!1,f=null,g,h=0,l,m=b.ua,k=b.Ka;b.ua=function(a){m&&m.call(b,a);"arrayChange"===a&&d()};b.Ka=function(a){k&&k.call(b,a);"arrayChange"!==a||b.Ra("arrayChange")||(l&&(b.notifySubscribers=l,l=n),g.k(),e=!1)};b.Yb=function(b,c,d){function k(a,b,c){return m[m.length]={status:a,value:b,index:c}}if(e&&!h){var m=[],l=b.length,g=d.length,G=0;switch(c){case "push":G=l;case "unshift":for(c=
+0;c<g;c++)k("added",d[c],G+c);break;case "pop":G=l-1;case "shift":l&&k("deleted",b[G],G);break;case "splice":c=Math.min(Math.max(0,0>d[0]?l+d[0]:d[0]),l);for(var l=1===g?l:Math.min(c+(d[1]||0),l),g=c+g-2,G=Math.max(l,g),n=[],s=[],w=2;c<G;++c,++w)c<l&&s.push(k("deleted",b[c],c)),c<g&&n.push(k("added",d[w],c));a.a.hc(s,n);break;default:return}f=m}}}};var s=a.a.bc("_state");a.m=a.B=function(b,c,d){function e(){if(0<arguments.length){if("function"===typeof f)f.apply(g.sb,arguments);else throw Error("Cannot write a value to a ko.computed unless you specify a 'write' option. If you wish to read the current value, don't pass any parameters.");
+return this}a.l.sc(e);(g.V||g.t&&e.Sa())&&e.U();return g.M}"object"===typeof b?d=b:(d=d||{},b&&(d.read=b));if("function"!=typeof d.read)throw Error("Pass a function that returns the value of the ko.computed");var f=d.write,g={M:n,da:!0,V:!0,Ta:!1,Hb:!1,T:!1,Ya:!1,t:!1,od:d.read,sb:c||d.owner,i:d.disposeWhenNodeIsRemoved||d.i||null,ya:d.disposeWhen||d.ya,pb:null,s:{},L:0,fc:null};e[s]=g;e.$c="function"===typeof f;a.a.la||a.a.extend(e,a.K.fn);a.K.fn.ub(e);a.a.ab(e,z);d.pure?(g.Ya=!0,g.t=!0,a.a.extend(e,
+Y)):d.deferEvaluation&&a.a.extend(e,Z);a.options.deferUpdates&&a.Aa.deferred(e,!0);g.i&&(g.Hb=!0,g.i.nodeType||(g.i=null));g.t||d.deferEvaluation||e.U();g.i&&e.ca()&&a.a.G.qa(g.i,g.pb=function(){e.k()});return e};var z={equalityComparer:J,Ca:function(){return this[s].L},Sb:function(a,c,d){if(this[s].Ya&&c===this)throw Error("A 'pure' computed must not be called recursively");this[s].s[a]=d;d.Ia=this[s].L++;d.pa=c.Pa()},Sa:function(){var a,c,d=this[s].s;for(a in d)if(d.hasOwnProperty(a)&&(c=d[a],this.oa&&
+c.$.Ha||c.$.Zc(c.pa)))return!0},gd:function(){this.oa&&!this[s].Ta&&this.oa(!1)},ca:function(){var a=this[s];return a.V||0<a.L},qd:function(){this.Ha?this[s].V&&(this[s].da=!0):this.ec()},yc:function(a){if(a.gb&&!this[s].i){var c=a.Y(this.gd,this,"dirty"),d=a.Y(this.qd,this);return{$:a,k:function(){c.k();d.k()}}}return a.Y(this.ec,this)},ec:function(){var b=this,c=b.throttleEvaluation;c&&0<=c?(clearTimeout(this[s].fc),this[s].fc=a.a.setTimeout(function(){b.U(!0)},c)):b.oa?b.oa(!0):b.U(!0)},U:function(b){var c=
+this[s],d=c.ya,e=!1;if(!c.Ta&&!c.T){if(c.i&&!a.a.qb(c.i)||d&&d()){if(!c.Hb){this.k();return}}else c.Hb=!1;c.Ta=!0;try{e=this.Vc(b)}finally{c.Ta=!1}c.L||this.k();return e}},Vc:function(b){var c=this[s],d=!1,e=c.Ya?n:!c.L,f={Mc:this,Oa:c.s,ob:c.L};a.l.Xb({Lc:f,jb:W,m:this,Va:e});c.s={};c.L=0;f=this.Uc(c,f);this.Ua(c.M,f)&&(c.t||this.notifySubscribers(c.M,"beforeChange"),c.M=f,c.t?this.Kb():b&&this.notifySubscribers(c.M),d=!0);e&&this.notifySubscribers(c.M,"awake");return d},Uc:function(b,c){try{var d=
+b.od;return b.sb?d.call(b.sb):d()}finally{a.l.end(),c.ob&&!b.t&&a.a.D(c.Oa,V),b.da=b.V=!1}},p:function(a){var c=this[s];(c.V&&(a||!c.L)||c.t&&this.Sa())&&this.U();return c.M},Wa:function(b){a.K.fn.Wa.call(this,b);this.Mb=function(){this[s].da?this.U():this[s].V=!1;return this[s].M};this.oa=function(a){this.Ob(this[s].M);this[s].V=!0;a&&(this[s].da=!0);this.Pb(this)}},k:function(){var b=this[s];!b.t&&b.s&&a.a.D(b.s,function(a,b){b.k&&b.k()});b.i&&b.pb&&a.a.G.tc(b.i,b.pb);b.s=null;b.L=0;b.T=!0;b.da=
+!1;b.V=!1;b.t=!1;b.i=null}},Y={ua:function(b){var c=this,d=c[s];if(!d.T&&d.t&&"change"==b){d.t=!1;if(d.da||c.Sa())d.s=null,d.L=0,c.U()&&c.Kb();else{var e=[];a.a.D(d.s,function(a,b){e[b.Ia]=a});a.a.r(e,function(a,b){var e=d.s[a],l=c.yc(e.$);l.Ia=b;l.pa=e.pa;d.s[a]=l})}d.T||c.notifySubscribers(d.M,"awake")}},Ka:function(b){var c=this[s];c.T||"change"!=b||this.Ra("change")||(a.a.D(c.s,function(a,b){b.k&&(c.s[a]={$:b.$,Ia:b.Ia,pa:b.pa},b.k())}),c.t=!0,this.notifySubscribers(n,"asleep"))},Pa:function(){var b=
+this[s];b.t&&(b.da||this.Sa())&&this.U();return a.K.fn.Pa.call(this)}},Z={ua:function(a){"change"!=a&&"beforeChange"!=a||this.p()}};a.a.la&&a.a.$a(z,a.K.fn);var P=a.O.md;a.m[P]=a.O;z[P]=a.m;a.bd=function(b){return a.Qa(b,a.m)};a.cd=function(b){return a.Qa(b,a.m)&&b[s]&&b[s].Ya};a.b("computed",a.m);a.b("dependentObservable",a.m);a.b("isComputed",a.bd);a.b("isPureComputed",a.cd);a.b("computed.fn",z);a.H(z,"peek",z.p);a.H(z,"dispose",z.k);a.H(z,"isActive",z.ca);a.H(z,"getDependenciesCount",z.Ca);a.rc=
+function(b,c){if("function"===typeof b)return a.m(b,c,{pure:!0});b=a.a.extend({},b);b.pure=!0;return a.m(b,c)};a.b("pureComputed",a.rc);(function(){function b(a,f,g){g=g||new d;a=f(a);if("object"!=typeof a||null===a||a===n||a instanceof RegExp||a instanceof Date||a instanceof String||a instanceof Number||a instanceof Boolean)return a;var h=a instanceof Array?[]:{};g.save(a,h);c(a,function(c){var d=f(a[c]);switch(typeof d){case "boolean":case "number":case "string":case "function":h[c]=d;break;case "object":case "undefined":var k=
+g.get(d);h[c]=k!==n?k:b(d,f,g)}});return h}function c(a,b){if(a instanceof Array){for(var c=0;c<a.length;c++)b(c);"function"==typeof a.toJSON&&b("toJSON")}else for(c in a)b(c)}function d(){this.keys=[];this.Lb=[]}a.Ac=function(c){if(0==arguments.length)throw Error("When calling ko.toJS, pass the object you want to convert.");return b(c,function(b){for(var c=0;a.I(b)&&10>c;c++)b=b();return b})};a.toJSON=function(b,c,d){b=a.Ac(b);return a.a.Gb(b,c,d)};d.prototype={save:function(b,c){var d=a.a.o(this.keys,
+b);0<=d?this.Lb[d]=c:(this.keys.push(b),this.Lb.push(c))},get:function(b){b=a.a.o(this.keys,b);return 0<=b?this.Lb[b]:n}}})();a.b("toJS",a.Ac);a.b("toJSON",a.toJSON);(function(){a.j={u:function(b){switch(a.a.A(b)){case "option":return!0===b.__ko__hasDomDataOptionValue__?a.a.e.get(b,a.d.options.zb):7>=a.a.C?b.getAttributeNode("value")&&b.getAttributeNode("value").specified?b.value:b.text:b.value;case "select":return 0<=b.selectedIndex?a.j.u(b.options[b.selectedIndex]):n;default:return b.value}},ja:function(b,
+c,d){switch(a.a.A(b)){case "option":switch(typeof c){case "string":a.a.e.set(b,a.d.options.zb,n);"__ko__hasDomDataOptionValue__"in b&&delete b.__ko__hasDomDataOptionValue__;b.value=c;break;default:a.a.e.set(b,a.d.options.zb,c),b.__ko__hasDomDataOptionValue__=!0,b.value="number"===typeof c?c:""}break;case "select":if(""===c||null===c)c=n;for(var e=-1,f=0,g=b.options.length,h;f<g;++f)if(h=a.j.u(b.options[f]),h==c||""==h&&c===n){e=f;break}if(d||0<=e||c===n&&1<b.size)b.selectedIndex=e;break;default:if(null===
+c||c===n)c="";b.value=c}}}})();a.b("selectExtensions",a.j);a.b("selectExtensions.readValue",a.j.u);a.b("selectExtensions.writeValue",a.j.ja);a.h=function(){function b(b){b=a.a.cb(b);123===b.charCodeAt(0)&&(b=b.slice(1,-1));var c=[],d=b.match(e),r,h=[],p=0;if(d){d.push(",");for(var A=0,y;y=d[A];++A){var v=y.charCodeAt(0);if(44===v){if(0>=p){c.push(r&&h.length?{key:r,value:h.join("")}:{unknown:r||h.join("")});r=p=0;h=[];continue}}else if(58===v){if(!p&&!r&&1===h.length){r=h.pop();continue}}else 47===
+v&&A&&1<y.length?(v=d[A-1].match(f))&&!g[v[0]]&&(b=b.substr(b.indexOf(y)+1),d=b.match(e),d.push(","),A=-1,y="/"):40===v||123===v||91===v?++p:41===v||125===v||93===v?--p:r||h.length||34!==v&&39!==v||(y=y.slice(1,-1));h.push(y)}}return c}var c=["true","false","null","undefined"],d=/^(?:[$_a-z][$\w]*|(.+)(\.\s*[$_a-z][$\w]*|\[.+\]))$/i,e=RegExp("\"(?:[^\"\\\\]|\\\\.)*\"|'(?:[^'\\\\]|\\\\.)*'|/(?:[^/\\\\]|\\\\.)*/w*|[^\\s:,/][^,\"'{}()/:[\\]]*[^\\s,\"'{}()/:[\\]]|[^\\s]","g"),f=/[\])"'A-Za-z0-9_$]+$/,
+g={"in":1,"return":1,"typeof":1},h={};return{va:[],ga:h,Ab:b,Xa:function(e,m){function k(b,e){var m;if(!A){var l=a.getBindingHandler(b);if(l&&l.preprocess&&!(e=l.preprocess(e,b,k)))return;if(l=h[b])m=e,0<=a.a.o(c,m)?m=!1:(l=m.match(d),m=null===l?!1:l[1]?"Object("+l[1]+")"+l[2]:m),l=m;l&&g.push("'"+b+"':function(_z){"+m+"=_z}")}p&&(e="function(){return "+e+" }");f.push("'"+b+"':"+e)}m=m||{};var f=[],g=[],p=m.valueAccessors,A=m.bindingParams,y="string"===typeof e?b(e):e;a.a.r(y,function(a){k(a.key||
+a.unknown,a.value)});g.length&&k("_ko_property_writers","{"+g.join(",")+" }");return f.join(",")},fd:function(a,b){for(var c=0;c<a.length;c++)if(a[c].key==b)return!0;return!1},Ga:function(b,c,d,e,f){if(b&&a.I(b))!a.Da(b)||f&&b.p()===e||b(e);else if((b=c.get("_ko_property_writers"))&&b[d])b[d](e)}}}();a.b("expressionRewriting",a.h);a.b("expressionRewriting.bindingRewriteValidators",a.h.va);a.b("expressionRewriting.parseObjectLiteral",a.h.Ab);a.b("expressionRewriting.preProcessBindings",a.h.Xa);a.b("expressionRewriting._twoWayBindings",
+a.h.ga);a.b("jsonExpressionRewriting",a.h);a.b("jsonExpressionRewriting.insertPropertyAccessorsIntoJson",a.h.Xa);(function(){function b(a){return 8==a.nodeType&&g.test(f?a.text:a.nodeValue)}function c(a){return 8==a.nodeType&&h.test(f?a.text:a.nodeValue)}function d(a,d){for(var e=a,f=1,l=[];e=e.nextSibling;){if(c(e)&&(f--,0===f))return l;l.push(e);b(e)&&f++}if(!d)throw Error("Cannot find closing comment tag to match: "+a.nodeValue);return null}function e(a,b){var c=d(a,b);return c?0<c.length?c[c.length-
+1].nextSibling:a.nextSibling:null}var f=t&&"\x3c!--test--\x3e"===t.createComment("test").text,g=f?/^\x3c!--\s*ko(?:\s+([\s\S]+))?\s*--\x3e$/:/^\s*ko(?:\s+([\s\S]+))?\s*$/,h=f?/^\x3c!--\s*\/ko\s*--\x3e$/:/^\s*\/ko\s*$/,l={ul:!0,ol:!0};a.f={aa:{},childNodes:function(a){return b(a)?d(a):a.childNodes},za:function(c){if(b(c)){c=a.f.childNodes(c);for(var d=0,e=c.length;d<e;d++)a.removeNode(c[d])}else a.a.rb(c)},fa:function(c,d){if(b(c)){a.f.za(c);for(var e=c.nextSibling,f=0,l=d.length;f<l;f++)e.parentNode.insertBefore(d[f],
+e)}else a.a.fa(c,d)},qc:function(a,c){b(a)?a.parentNode.insertBefore(c,a.nextSibling):a.firstChild?a.insertBefore(c,a.firstChild):a.appendChild(c)},kc:function(c,d,e){e?b(c)?c.parentNode.insertBefore(d,e.nextSibling):e.nextSibling?c.insertBefore(d,e.nextSibling):c.appendChild(d):a.f.qc(c,d)},firstChild:function(a){return b(a)?!a.nextSibling||c(a.nextSibling)?null:a.nextSibling:a.firstChild},nextSibling:function(a){b(a)&&(a=e(a));return a.nextSibling&&c(a.nextSibling)?null:a.nextSibling},Yc:b,vd:function(a){return(a=
+(f?a.text:a.nodeValue).match(g))?a[1]:null},oc:function(d){if(l[a.a.A(d)]){var k=d.firstChild;if(k){do if(1===k.nodeType){var f;f=k.firstChild;var g=null;if(f){do if(g)g.push(f);else if(b(f)){var h=e(f,!0);h?f=h:g=[f]}else c(f)&&(g=[f]);while(f=f.nextSibling)}if(f=g)for(g=k.nextSibling,h=0;h<f.length;h++)g?d.insertBefore(f[h],g):d.appendChild(f[h])}while(k=k.nextSibling)}}}}})();a.b("virtualElements",a.f);a.b("virtualElements.allowedBindings",a.f.aa);a.b("virtualElements.emptyNode",a.f.za);a.b("virtualElements.insertAfter",
+a.f.kc);a.b("virtualElements.prepend",a.f.qc);a.b("virtualElements.setDomNodeChildren",a.f.fa);(function(){a.S=function(){this.Kc={}};a.a.extend(a.S.prototype,{nodeHasBindings:function(b){switch(b.nodeType){case 1:return null!=b.getAttribute("data-bind")||a.g.getComponentNameForNode(b);case 8:return a.f.Yc(b);default:return!1}},getBindings:function(b,c){var d=this.getBindingsString(b,c),d=d?this.parseBindingsString(d,c,b):null;return a.g.Rb(d,b,c,!1)},getBindingAccessors:function(b,c){var d=this.getBindingsString(b,
+c),d=d?this.parseBindingsString(d,c,b,{valueAccessors:!0}):null;return a.g.Rb(d,b,c,!0)},getBindingsString:function(b){switch(b.nodeType){case 1:return b.getAttribute("data-bind");case 8:return a.f.vd(b);default:return null}},parseBindingsString:function(b,c,d,e){try{var f=this.Kc,g=b+(e&&e.valueAccessors||""),h;if(!(h=f[g])){var l,m="with($context){with($data||{}){return{"+a.h.Xa(b,e)+"}}}";l=new Function("$context","$element",m);h=f[g]=l}return h(c,d)}catch(k){throw k.message="Unable to parse bindings.\nBindings value: "+
+b+"\nMessage: "+k.message,k;}}});a.S.instance=new a.S})();a.b("bindingProvider",a.S);(function(){function b(a){return function(){return a}}function c(a){return a()}function d(b){return a.a.Ea(a.l.w(b),function(a,c){return function(){return b()[c]}})}function e(c,e,k){return"function"===typeof c?d(c.bind(null,e,k)):a.a.Ea(c,b)}function f(a,b){return d(this.getBindings.bind(this,a,b))}function g(b,c,d){var e,k=a.f.firstChild(c),f=a.S.instance,m=f.preprocessNode;if(m){for(;e=k;)k=a.f.nextSibling(e),
+m.call(f,e);k=a.f.firstChild(c)}for(;e=k;)k=a.f.nextSibling(e),h(b,e,d)}function h(b,c,d){var e=!0,k=1===c.nodeType;k&&a.f.oc(c);if(k&&d||a.S.instance.nodeHasBindings(c))e=m(c,null,b,d).shouldBindDescendants;e&&!r[a.a.A(c)]&&g(b,c,!k)}function l(b){var c=[],d={},e=[];a.a.D(b,function X(k){if(!d[k]){var f=a.getBindingHandler(k);f&&(f.after&&(e.push(k),a.a.r(f.after,function(c){if(b[c]){if(-1!==a.a.o(e,c))throw Error("Cannot combine the following bindings, because they have a cyclic dependency: "+e.join(", "));
+X(c)}}),e.length--),c.push({key:k,jc:f}));d[k]=!0}});return c}function m(b,d,e,k){var m=a.a.e.get(b,q);if(!d){if(m)throw Error("You cannot apply bindings multiple times to the same element.");a.a.e.set(b,q,!0)}!m&&k&&a.xc(b,e);var g;if(d&&"function"!==typeof d)g=d;else{var h=a.S.instance,r=h.getBindingAccessors||f,p=a.B(function(){(g=d?d(e,b):r.call(h,b,e))&&e.Q&&e.Q();return g},null,{i:b});g&&p.ca()||(p=null)}var s;if(g){var t=p?function(a){return function(){return c(p()[a])}}:function(a){return g[a]},
+u=function(){return a.a.Ea(p?p():g,c)};u.get=function(a){return g[a]&&c(t(a))};u.has=function(a){return a in g};k=l(g);a.a.r(k,function(c){var d=c.jc.init,k=c.jc.update,f=c.key;if(8===b.nodeType&&!a.f.aa[f])throw Error("The binding '"+f+"' cannot be used with virtual elements");try{"function"==typeof d&&a.l.w(function(){var a=d(b,t(f),u,e.$data,e);if(a&&a.controlsDescendantBindings){if(s!==n)throw Error("Multiple bindings ("+s+" and "+f+") are trying to control descendant bindings of the same element. You cannot use these bindings together on the same element.");
+s=f}}),"function"==typeof k&&a.B(function(){k(b,t(f),u,e.$data,e)},null,{i:b})}catch(m){throw m.message='Unable to process binding "'+f+": "+g[f]+'"\nMessage: '+m.message,m;}})}return{shouldBindDescendants:s===n}}function k(b){return b&&b instanceof a.R?b:new a.R(b)}a.d={};var r={script:!0,textarea:!0,template:!0};a.getBindingHandler=function(b){return a.d[b]};a.R=function(b,c,d,e,k){function f(){var k=g?b():b,m=a.a.c(k);c?(c.Q&&c.Q(),a.a.extend(l,c),l.Q=r):(l.$parents=[],l.$root=m,l.ko=a);l.$rawData=
+k;l.$data=m;d&&(l[d]=m);e&&e(l,c,m);return l.$data}function m(){return h&&!a.a.Tb(h)}var l=this,g="function"==typeof b&&!a.I(b),h,r;k&&k.exportDependencies?f():(r=a.B(f,null,{ya:m,i:!0}),r.ca()&&(l.Q=r,r.equalityComparer=null,h=[],r.Dc=function(b){h.push(b);a.a.G.qa(b,function(b){a.a.Na(h,b);h.length||(r.k(),l.Q=r=n)})}))};a.R.prototype.createChildContext=function(b,c,d,e){return new a.R(b,this,c,function(a,b){a.$parentContext=b;a.$parent=b.$data;a.$parents=(b.$parents||[]).slice(0);a.$parents.unshift(a.$parent);
+d&&d(a)},e)};a.R.prototype.extend=function(b){return new a.R(this.Q||this.$data,this,null,function(c,d){c.$rawData=d.$rawData;a.a.extend(c,"function"==typeof b?b():b)})};a.R.prototype.ac=function(a,b){return this.createChildContext(a,b,null,{exportDependencies:!0})};var q=a.a.e.J(),p=a.a.e.J();a.xc=function(b,c){if(2==arguments.length)a.a.e.set(b,p,c),c.Q&&c.Q.Dc(b);else return a.a.e.get(b,p)};a.La=function(b,c,d){1===b.nodeType&&a.f.oc(b);return m(b,c,k(d),!0)};a.Ic=function(b,c,d){d=k(d);return a.La(b,
+e(c,d,b),d)};a.hb=function(a,b){1!==b.nodeType&&8!==b.nodeType||g(k(a),b,!0)};a.Ub=function(a,b){!u&&x.jQuery&&(u=x.jQuery);if(b&&1!==b.nodeType&&8!==b.nodeType)throw Error("ko.applyBindings: first parameter should be your view model; second parameter should be a DOM node");b=b||x.document.body;h(k(a),b,!0)};a.nb=function(b){switch(b.nodeType){case 1:case 8:var c=a.xc(b);if(c)return c;if(b.parentNode)return a.nb(b.parentNode)}return n};a.Oc=function(b){return(b=a.nb(b))?b.$data:n};a.b("bindingHandlers",
+a.d);a.b("applyBindings",a.Ub);a.b("applyBindingsToDescendants",a.hb);a.b("applyBindingAccessorsToNode",a.La);a.b("applyBindingsToNode",a.Ic);a.b("contextFor",a.nb);a.b("dataFor",a.Oc)})();(function(b){function c(c,e){var m=f.hasOwnProperty(c)?f[c]:b,k;m?m.Y(e):(m=f[c]=new a.K,m.Y(e),d(c,function(b,d){var e=!(!d||!d.synchronous);g[c]={definition:b,dd:e};delete f[c];k||e?m.notifySubscribers(b):a.Z.Za(function(){m.notifySubscribers(b)})}),k=!0)}function d(a,b){e("getConfig",[a],function(c){c?e("loadComponent",
+[a,c],function(a){b(a,c)}):b(null,null)})}function e(c,d,f,k){k||(k=a.g.loaders.slice(0));var g=k.shift();if(g){var q=g[c];if(q){var p=!1;if(q.apply(g,d.concat(function(a){p?f(null):null!==a?f(a):e(c,d,f,k)}))!==b&&(p=!0,!g.suppressLoaderExceptions))throw Error("Component loaders must supply values by invoking the callback, not by returning values synchronously.");}else e(c,d,f,k)}else f(null)}var f={},g={};a.g={get:function(d,e){var f=g.hasOwnProperty(d)?g[d]:b;f?f.dd?a.l.w(function(){e(f.definition)}):
+a.Z.Za(function(){e(f.definition)}):c(d,e)},$b:function(a){delete g[a]},Nb:e};a.g.loaders=[];a.b("components",a.g);a.b("components.get",a.g.get);a.b("components.clearCachedDefinition",a.g.$b)})();(function(){function b(b,c,d,e){function g(){0===--y&&e(h)}var h={},y=2,v=d.template;d=d.viewModel;v?f(c,v,function(c){a.g.Nb("loadTemplate",[b,c],function(a){h.template=a;g()})}):g();d?f(c,d,function(c){a.g.Nb("loadViewModel",[b,c],function(a){h[l]=a;g()})}):g()}function c(a,b,d){if("function"===typeof b)d(function(a){return new b(a)});
+else if("function"===typeof b[l])d(b[l]);else if("instance"in b){var e=b.instance;d(function(){return e})}else"viewModel"in b?c(a,b.viewModel,d):a("Unknown viewModel value: "+b)}function d(b){switch(a.a.A(b)){case "script":return a.a.na(b.text);case "textarea":return a.a.na(b.value);case "template":if(e(b.content))return a.a.wa(b.content.childNodes)}return a.a.wa(b.childNodes)}function e(a){return x.DocumentFragment?a instanceof DocumentFragment:a&&11===a.nodeType}function f(a,b,c){"string"===typeof b.require?
+O||x.require?(O||x.require)([b.require],c):a("Uses require, but no AMD loader is present"):c(b)}function g(a){return function(b){throw Error("Component '"+a+"': "+b);}}var h={};a.g.register=function(b,c){if(!c)throw Error("Invalid configuration for "+b);if(a.g.wb(b))throw Error("Component "+b+" is already registered");h[b]=c};a.g.wb=function(a){return h.hasOwnProperty(a)};a.g.ud=function(b){delete h[b];a.g.$b(b)};a.g.cc={getConfig:function(a,b){b(h.hasOwnProperty(a)?h[a]:null)},loadComponent:function(a,
+c,d){var e=g(a);f(e,c,function(c){b(a,e,c,d)})},loadTemplate:function(b,c,f){b=g(b);if("string"===typeof c)f(a.a.na(c));else if(c instanceof Array)f(c);else if(e(c))f(a.a.W(c.childNodes));else if(c.element)if(c=c.element,x.HTMLElement?c instanceof HTMLElement:c&&c.tagName&&1===c.nodeType)f(d(c));else if("string"===typeof c){var l=t.getElementById(c);l?f(d(l)):b("Cannot find element with ID "+c)}else b("Unknown element type: "+c);else b("Unknown template value: "+c)},loadViewModel:function(a,b,d){c(g(a),
+b,d)}};var l="createViewModel";a.b("components.register",a.g.register);a.b("components.isRegistered",a.g.wb);a.b("components.unregister",a.g.ud);a.b("components.defaultLoader",a.g.cc);a.g.loaders.push(a.g.cc);a.g.Ec=h})();(function(){function b(b,e){var f=b.getAttribute("params");if(f){var f=c.parseBindingsString(f,e,b,{valueAccessors:!0,bindingParams:!0}),f=a.a.Ea(f,function(c){return a.m(c,null,{i:b})}),g=a.a.Ea(f,function(c){var e=c.p();return c.ca()?a.m({read:function(){return a.a.c(c())},write:a.Da(e)&&
+function(a){c()(a)},i:b}):e});g.hasOwnProperty("$raw")||(g.$raw=f);return g}return{$raw:{}}}a.g.getComponentNameForNode=function(b){var c=a.a.A(b);if(a.g.wb(c)&&(-1!=c.indexOf("-")||"[object HTMLUnknownElement]"==""+b||8>=a.a.C&&b.tagName===c))return c};a.g.Rb=function(c,e,f,g){if(1===e.nodeType){var h=a.g.getComponentNameForNode(e);if(h){c=c||{};if(c.component)throw Error('Cannot use the "component" binding on a custom element matching a component');var l={name:h,params:b(e,f)};c.component=g?function(){return l}:
+l}}return c};var c=new a.S;9>a.a.C&&(a.g.register=function(a){return function(b){t.createElement(b);return a.apply(this,arguments)}}(a.g.register),t.createDocumentFragment=function(b){return function(){var c=b(),f=a.g.Ec,g;for(g in f)f.hasOwnProperty(g)&&c.createElement(g);return c}}(t.createDocumentFragment))})();(function(b){function c(b,c,d){c=c.template;if(!c)throw Error("Component '"+b+"' has no template");b=a.a.wa(c);a.f.fa(d,b)}function d(a,b,c,d){var e=a.createViewModel;return e?e.call(a,
+d,{element:b,templateNodes:c}):d}var e=0;a.d.component={init:function(f,g,h,l,m){function k(){var a=r&&r.dispose;"function"===typeof a&&a.call(r);q=r=null}var r,q,p=a.a.W(a.f.childNodes(f));a.a.G.qa(f,k);a.m(function(){var l=a.a.c(g()),h,v;"string"===typeof l?h=l:(h=a.a.c(l.name),v=a.a.c(l.params));if(!h)throw Error("No component name specified");var n=q=++e;a.g.get(h,function(e){if(q===n){k();if(!e)throw Error("Unknown component '"+h+"'");c(h,e,f);var l=d(e,f,p,v);e=m.createChildContext(l,b,function(a){a.$component=
+l;a.$componentTemplateNodes=p});r=l;a.hb(e,f)}})},null,{i:f});return{controlsDescendantBindings:!0}}};a.f.aa.component=!0})();var Q={"class":"className","for":"htmlFor"};a.d.attr={update:function(b,c){var d=a.a.c(c())||{};a.a.D(d,function(c,d){d=a.a.c(d);var g=!1===d||null===d||d===n;g&&b.removeAttribute(c);8>=a.a.C&&c in Q?(c=Q[c],g?b.removeAttribute(c):b[c]=d):g||b.setAttribute(c,d.toString());"name"===c&&a.a.vc(b,g?"":d.toString())})}};(function(){a.d.checked={after:["value","attr"],init:function(b,
+c,d){function e(){var e=b.checked,f=p?g():e;if(!a.xa.Va()&&(!l||e)){var h=a.l.w(c);if(k){var m=r?h.p():h;q!==f?(e&&(a.a.ra(m,f,!0),a.a.ra(m,q,!1)),q=f):a.a.ra(m,f,e);r&&a.Da(h)&&h(m)}else a.h.Ga(h,d,"checked",f,!0)}}function f(){var d=a.a.c(c());b.checked=k?0<=a.a.o(d,g()):h?d:g()===d}var g=a.rc(function(){return d.has("checkedValue")?a.a.c(d.get("checkedValue")):d.has("value")?a.a.c(d.get("value")):b.value}),h="checkbox"==b.type,l="radio"==b.type;if(h||l){var m=c(),k=h&&a.a.c(m)instanceof Array,
+r=!(k&&m.push&&m.splice),q=k?g():n,p=l||k;l&&!b.name&&a.d.uniqueName.init(b,function(){return!0});a.m(e,null,{i:b});a.a.q(b,"click",e);a.m(f,null,{i:b});m=n}}};a.h.ga.checked=!0;a.d.checkedValue={update:function(b,c){b.value=a.a.c(c())}}})();a.d.css={update:function(b,c){var d=a.a.c(c());null!==d&&"object"==typeof d?a.a.D(d,function(c,d){d=a.a.c(d);a.a.fb(b,c,d)}):(d=a.a.cb(String(d||"")),a.a.fb(b,b.__ko__cssValue,!1),b.__ko__cssValue=d,a.a.fb(b,d,!0))}};a.d.enable={update:function(b,c){var d=a.a.c(c());
+d&&b.disabled?b.removeAttribute("disabled"):d||b.disabled||(b.disabled=!0)}};a.d.disable={update:function(b,c){a.d.enable.update(b,function(){return!a.a.c(c())})}};a.d.event={init:function(b,c,d,e,f){var g=c()||{};a.a.D(g,function(g){"string"==typeof g&&a.a.q(b,g,function(b){var m,k=c()[g];if(k){try{var r=a.a.W(arguments);e=f.$data;r.unshift(e);m=k.apply(e,r)}finally{!0!==m&&(b.preventDefault?b.preventDefault():b.returnValue=!1)}!1===d.get(g+"Bubble")&&(b.cancelBubble=!0,b.stopPropagation&&b.stopPropagation())}})})}};
+a.d.foreach={mc:function(b){return function(){var c=b(),d=a.a.Bb(c);if(!d||"number"==typeof d.length)return{foreach:c,templateEngine:a.X.vb};a.a.c(c);return{foreach:d.data,as:d.as,includeDestroyed:d.includeDestroyed,afterAdd:d.afterAdd,beforeRemove:d.beforeRemove,afterRender:d.afterRender,beforeMove:d.beforeMove,afterMove:d.afterMove,templateEngine:a.X.vb}}},init:function(b,c){return a.d.template.init(b,a.d.foreach.mc(c))},update:function(b,c,d,e,f){return a.d.template.update(b,a.d.foreach.mc(c),
+d,e,f)}};a.h.va.foreach=!1;a.f.aa.foreach=!0;a.d.hasfocus={init:function(b,c,d){function e(e){b.__ko_hasfocusUpdating=!0;var f=b.ownerDocument;if("activeElement"in f){var g;try{g=f.activeElement}catch(k){g=f.body}e=g===b}f=c();a.h.Ga(f,d,"hasfocus",e,!0);b.__ko_hasfocusLastValue=e;b.__ko_hasfocusUpdating=!1}var f=e.bind(null,!0),g=e.bind(null,!1);a.a.q(b,"focus",f);a.a.q(b,"focusin",f);a.a.q(b,"blur",g);a.a.q(b,"focusout",g)},update:function(b,c){var d=!!a.a.c(c());b.__ko_hasfocusUpdating||b.__ko_hasfocusLastValue===
+d||(d?b.focus():b.blur(),!d&&b.__ko_hasfocusLastValue&&b.ownerDocument.body.focus(),a.l.w(a.a.Fa,null,[b,d?"focusin":"focusout"]))}};a.h.ga.hasfocus=!0;a.d.hasFocus=a.d.hasfocus;a.h.ga.hasFocus=!0;a.d.html={init:function(){return{controlsDescendantBindings:!0}},update:function(b,c){a.a.Eb(b,c())}};K("if");K("ifnot",!1,!0);K("with",!0,!1,function(a,c){return a.ac(c)});var L={};a.d.options={init:function(b){if("select"!==a.a.A(b))throw Error("options binding applies only to SELECT elements");for(;0<
+b.length;)b.remove(0);return{controlsDescendantBindings:!0}},update:function(b,c,d){function e(){return a.a.Ma(b.options,function(a){return a.selected})}function f(a,b,c){var d=typeof b;return"function"==d?b(a):"string"==d?a[b]:c}function g(c,e){if(A&&k)a.j.ja(b,a.a.c(d.get("value")),!0);else if(p.length){var f=0<=a.a.o(p,a.j.u(e[0]));a.a.wc(e[0],f);A&&!f&&a.l.w(a.a.Fa,null,[b,"change"])}}var h=b.multiple,l=0!=b.length&&h?b.scrollTop:null,m=a.a.c(c()),k=d.get("valueAllowUnset")&&d.has("value"),r=
+d.get("optionsIncludeDestroyed");c={};var q,p=[];k||(h?p=a.a.ib(e(),a.j.u):0<=b.selectedIndex&&p.push(a.j.u(b.options[b.selectedIndex])));m&&("undefined"==typeof m.length&&(m=[m]),q=a.a.Ma(m,function(b){return r||b===n||null===b||!a.a.c(b._destroy)}),d.has("optionsCaption")&&(m=a.a.c(d.get("optionsCaption")),null!==m&&m!==n&&q.unshift(L)));var A=!1;c.beforeRemove=function(a){b.removeChild(a)};m=g;d.has("optionsAfterRender")&&"function"==typeof d.get("optionsAfterRender")&&(m=function(b,c){g(0,c);
+a.l.w(d.get("optionsAfterRender"),null,[c[0],b!==L?b:n])});a.a.Db(b,q,function(c,e,g){g.length&&(p=!k&&g[0].selected?[a.j.u(g[0])]:[],A=!0);e=b.ownerDocument.createElement("option");c===L?(a.a.bb(e,d.get("optionsCaption")),a.j.ja(e,n)):(g=f(c,d.get("optionsValue"),c),a.j.ja(e,a.a.c(g)),c=f(c,d.get("optionsText"),g),a.a.bb(e,c));return[e]},c,m);a.l.w(function(){k?a.j.ja(b,a.a.c(d.get("value")),!0):(h?p.length&&e().length<p.length:p.length&&0<=b.selectedIndex?a.j.u(b.options[b.selectedIndex])!==p[0]:
+p.length||0<=b.selectedIndex)&&a.a.Fa(b,"change")});a.a.Sc(b);l&&20<Math.abs(l-b.scrollTop)&&(b.scrollTop=l)}};a.d.options.zb=a.a.e.J();a.d.selectedOptions={after:["options","foreach"],init:function(b,c,d){a.a.q(b,"change",function(){var e=c(),f=[];a.a.r(b.getElementsByTagName("option"),function(b){b.selected&&f.push(a.j.u(b))});a.h.Ga(e,d,"selectedOptions",f)})},update:function(b,c){if("select"!=a.a.A(b))throw Error("values binding applies only to SELECT elements");var d=a.a.c(c()),e=b.scrollTop;
+d&&"number"==typeof d.length&&a.a.r(b.getElementsByTagName("option"),function(b){var c=0<=a.a.o(d,a.j.u(b));b.selected!=c&&a.a.wc(b,c)});b.scrollTop=e}};a.h.ga.selectedOptions=!0;a.d.style={update:function(b,c){var d=a.a.c(c()||{});a.a.D(d,function(c,d){d=a.a.c(d);if(null===d||d===n||!1===d)d="";b.style[c]=d})}};a.d.submit={init:function(b,c,d,e,f){if("function"!=typeof c())throw Error("The value for a submit binding must be a function");a.a.q(b,"submit",function(a){var d,e=c();try{d=e.call(f.$data,
+b)}finally{!0!==d&&(a.preventDefault?a.preventDefault():a.returnValue=!1)}})}};a.d.text={init:function(){return{controlsDescendantBindings:!0}},update:function(b,c){a.a.bb(b,c())}};a.f.aa.text=!0;(function(){if(x&&x.navigator)var b=function(a){if(a)return parseFloat(a[1])},c=x.opera&&x.opera.version&&parseInt(x.opera.version()),d=x.navigator.userAgent,e=b(d.match(/^(?:(?!chrome).)*version\/([^ ]*) safari/i)),f=b(d.match(/Firefox\/([^ ]*)/));if(10>a.a.C)var g=a.a.e.J(),h=a.a.e.J(),l=function(b){var c=
+this.activeElement;(c=c&&a.a.e.get(c,h))&&c(b)},m=function(b,c){var d=b.ownerDocument;a.a.e.get(d,g)||(a.a.e.set(d,g,!0),a.a.q(d,"selectionchange",l));a.a.e.set(b,h,c)};a.d.textInput={init:function(b,d,g){function l(c,d){a.a.q(b,c,d)}function h(){var c=a.a.c(d());if(null===c||c===n)c="";u!==n&&c===u?a.a.setTimeout(h,4):b.value!==c&&(s=c,b.value=c)}function y(){t||(u=b.value,t=a.a.setTimeout(v,4))}function v(){clearTimeout(t);u=t=n;var c=b.value;s!==c&&(s=c,a.h.Ga(d(),g,"textInput",c))}var s=b.value,
+t,u,x=9==a.a.C?y:v;10>a.a.C?(l("propertychange",function(a){"value"===a.propertyName&&x(a)}),8==a.a.C&&(l("keyup",v),l("keydown",v)),8<=a.a.C&&(m(b,x),l("dragend",y))):(l("input",v),5>e&&"textarea"===a.a.A(b)?(l("keydown",y),l("paste",y),l("cut",y)):11>c?l("keydown",y):4>f&&(l("DOMAutoComplete",v),l("dragdrop",v),l("drop",v)));l("change",v);a.m(h,null,{i:b})}};a.h.ga.textInput=!0;a.d.textinput={preprocess:function(a,b,c){c("textInput",a)}}})();a.d.uniqueName={init:function(b,c){if(c()){var d="ko_unique_"+
+++a.d.uniqueName.Nc;a.a.vc(b,d)}}};a.d.uniqueName.Nc=0;a.d.value={after:["options","foreach"],init:function(b,c,d){if("input"!=b.tagName.toLowerCase()||"checkbox"!=b.type&&"radio"!=b.type){var e=["change"],f=d.get("valueUpdate"),g=!1,h=null;f&&("string"==typeof f&&(f=[f]),a.a.ta(e,f),e=a.a.Wb(e));var l=function(){h=null;g=!1;var e=c(),f=a.j.u(b);a.h.Ga(e,d,"value",f)};!a.a.C||"input"!=b.tagName.toLowerCase()||"text"!=b.type||"off"==b.autocomplete||b.form&&"off"==b.form.autocomplete||-1!=a.a.o(e,"propertychange")||
+(a.a.q(b,"propertychange",function(){g=!0}),a.a.q(b,"focus",function(){g=!1}),a.a.q(b,"blur",function(){g&&l()}));a.a.r(e,function(c){var d=l;a.a.sd(c,"after")&&(d=function(){h=a.j.u(b);a.a.setTimeout(l,0)},c=c.substring(5));a.a.q(b,c,d)});var m=function(){var e=a.a.c(c()),f=a.j.u(b);if(null!==h&&e===h)a.a.setTimeout(m,0);else if(e!==f)if("select"===a.a.A(b)){var g=d.get("valueAllowUnset"),f=function(){a.j.ja(b,e,g)};f();g||e===a.j.u(b)?a.a.setTimeout(f,0):a.l.w(a.a.Fa,null,[b,"change"])}else a.j.ja(b,
+e)};a.m(m,null,{i:b})}else a.La(b,{checkedValue:c})},update:function(){}};a.h.ga.value=!0;a.d.visible={update:function(b,c){var d=a.a.c(c()),e="none"!=b.style.display;d&&!e?b.style.display="":!d&&e&&(b.style.display="none")}};(function(b){a.d[b]={init:function(c,d,e,f,g){return a.d.event.init.call(this,c,function(){var a={};a[b]=d();return a},e,f,g)}}})("click");a.P=function(){};a.P.prototype.renderTemplateSource=function(){throw Error("Override renderTemplateSource");};a.P.prototype.createJavaScriptEvaluatorBlock=
+function(){throw Error("Override createJavaScriptEvaluatorBlock");};a.P.prototype.makeTemplateSource=function(b,c){if("string"==typeof b){c=c||t;var d=c.getElementById(b);if(!d)throw Error("Cannot find template with ID "+b);return new a.v.n(d)}if(1==b.nodeType||8==b.nodeType)return new a.v.sa(b);throw Error("Unknown template type: "+b);};a.P.prototype.renderTemplate=function(a,c,d,e){a=this.makeTemplateSource(a,e);return this.renderTemplateSource(a,c,d,e)};a.P.prototype.isTemplateRewritten=function(a,
+c){return!1===this.allowTemplateRewriting?!0:this.makeTemplateSource(a,c).data("isRewritten")};a.P.prototype.rewriteTemplate=function(a,c,d){a=this.makeTemplateSource(a,d);c=c(a.text());a.text(c);a.data("isRewritten",!0)};a.b("templateEngine",a.P);a.Ib=function(){function b(b,c,d,h){b=a.h.Ab(b);for(var l=a.h.va,m=0;m<b.length;m++){var k=b[m].key;if(l.hasOwnProperty(k)){var r=l[k];if("function"===typeof r){if(k=r(b[m].value))throw Error(k);}else if(!r)throw Error("This template engine does not support the '"+
+k+"' binding within its templates");}}d="ko.__tr_ambtns(function($context,$element){return(function(){return{ "+a.h.Xa(b,{valueAccessors:!0})+" } })()},'"+d.toLowerCase()+"')";return h.createJavaScriptEvaluatorBlock(d)+c}var c=/(<([a-z]+\d*)(?:\s+(?!data-bind\s*=\s*)[a-z0-9\-]+(?:=(?:\"[^\"]*\"|\'[^\']*\'|[^>]*))?)*\s+)data-bind\s*=\s*(["'])([\s\S]*?)\3/gi,d=/\x3c!--\s*ko\b\s*([\s\S]*?)\s*--\x3e/g;return{Tc:function(b,c,d){c.isTemplateRewritten(b,d)||c.rewriteTemplate(b,function(b){return a.Ib.jd(b,
+c)},d)},jd:function(a,f){return a.replace(c,function(a,c,d,e,k){return b(k,c,d,f)}).replace(d,function(a,c){return b(c,"\x3c!-- ko --\x3e","#comment",f)})},Jc:function(b,c){return a.N.yb(function(d,h){var l=d.nextSibling;l&&l.nodeName.toLowerCase()===c&&a.La(l,b,h)})}}}();a.b("__tr_ambtns",a.Ib.Jc);(function(){a.v={};a.v.n=function(b){if(this.n=b){var c=a.a.A(b);this.eb="script"===c?1:"textarea"===c?2:"template"==c&&b.content&&11===b.content.nodeType?3:4}};a.v.n.prototype.text=function(){var b=1===
+this.eb?"text":2===this.eb?"value":"innerHTML";if(0==arguments.length)return this.n[b];var c=arguments[0];"innerHTML"===b?a.a.Eb(this.n,c):this.n[b]=c};var b=a.a.e.J()+"_";a.v.n.prototype.data=function(c){if(1===arguments.length)return a.a.e.get(this.n,b+c);a.a.e.set(this.n,b+c,arguments[1])};var c=a.a.e.J();a.v.n.prototype.nodes=function(){var b=this.n;if(0==arguments.length)return(a.a.e.get(b,c)||{}).mb||(3===this.eb?b.content:4===this.eb?b:n);a.a.e.set(b,c,{mb:arguments[0]})};a.v.sa=function(a){this.n=
+a};a.v.sa.prototype=new a.v.n;a.v.sa.prototype.text=function(){if(0==arguments.length){var b=a.a.e.get(this.n,c)||{};b.Jb===n&&b.mb&&(b.Jb=b.mb.innerHTML);return b.Jb}a.a.e.set(this.n,c,{Jb:arguments[0]})};a.b("templateSources",a.v);a.b("templateSources.domElement",a.v.n);a.b("templateSources.anonymousTemplate",a.v.sa)})();(function(){function b(b,c,d){var e;for(c=a.f.nextSibling(c);b&&(e=b)!==c;)b=a.f.nextSibling(e),d(e,b)}function c(c,d){if(c.length){var e=c[0],f=c[c.length-1],g=e.parentNode,h=
+a.S.instance,n=h.preprocessNode;if(n){b(e,f,function(a,b){var c=a.previousSibling,d=n.call(h,a);d&&(a===e&&(e=d[0]||b),a===f&&(f=d[d.length-1]||c))});c.length=0;if(!e)return;e===f?c.push(e):(c.push(e,f),a.a.Ba(c,g))}b(e,f,function(b){1!==b.nodeType&&8!==b.nodeType||a.Ub(d,b)});b(e,f,function(b){1!==b.nodeType&&8!==b.nodeType||a.N.Cc(b,[d])});a.a.Ba(c,g)}}function d(a){return a.nodeType?a:0<a.length?a[0]:null}function e(b,e,f,h,q){q=q||{};var p=(b&&d(b)||f||{}).ownerDocument,n=q.templateEngine||g;
+a.Ib.Tc(f,n,p);f=n.renderTemplate(f,h,q,p);if("number"!=typeof f.length||0<f.length&&"number"!=typeof f[0].nodeType)throw Error("Template engine must return an array of DOM nodes");p=!1;switch(e){case "replaceChildren":a.f.fa(b,f);p=!0;break;case "replaceNode":a.a.uc(b,f);p=!0;break;case "ignoreTargetNode":break;default:throw Error("Unknown renderMode: "+e);}p&&(c(f,h),q.afterRender&&a.l.w(q.afterRender,null,[f,h.$data]));return f}function f(b,c,d){return a.I(b)?b():"function"===typeof b?b(c,d):b}
+var g;a.Fb=function(b){if(b!=n&&!(b instanceof a.P))throw Error("templateEngine must inherit from ko.templateEngine");g=b};a.Cb=function(b,c,k,h,q){k=k||{};if((k.templateEngine||g)==n)throw Error("Set a template engine before calling renderTemplate");q=q||"replaceChildren";if(h){var p=d(h);return a.B(function(){var g=c&&c instanceof a.R?c:new a.R(c,null,null,null,{exportDependencies:!0}),n=f(b,g.$data,g),g=e(h,q,n,g,k);"replaceNode"==q&&(h=g,p=d(h))},null,{ya:function(){return!p||!a.a.qb(p)},i:p&&
+"replaceNode"==q?p.parentNode:p})}return a.N.yb(function(d){a.Cb(b,c,k,d,"replaceNode")})};a.pd=function(b,d,g,h,q){function p(a,b){c(b,t);g.afterRender&&g.afterRender(b,a);t=null}function s(a,c){t=q.createChildContext(a,g.as,function(a){a.$index=c});var d=f(b,a,t);return e(null,"ignoreTargetNode",d,t,g)}var t;return a.B(function(){var b=a.a.c(d)||[];"undefined"==typeof b.length&&(b=[b]);b=a.a.Ma(b,function(b){return g.includeDestroyed||b===n||null===b||!a.a.c(b._destroy)});a.l.w(a.a.Db,null,[h,b,
+s,g,p])},null,{i:h})};var h=a.a.e.J();a.d.template={init:function(b,c){var d=a.a.c(c());if("string"==typeof d||d.name)a.f.za(b);else{if("nodes"in d){if(d=d.nodes||[],a.I(d))throw Error('The "nodes" option must be a plain, non-observable array.');}else d=a.f.childNodes(b);d=a.a.nc(d);(new a.v.sa(b)).nodes(d)}return{controlsDescendantBindings:!0}},update:function(b,c,d,e,f){var g=c();c=a.a.c(g);d=!0;e=null;"string"==typeof c?c={}:(g=c.name,"if"in c&&(d=a.a.c(c["if"])),d&&"ifnot"in c&&(d=!a.a.c(c.ifnot)));
+"foreach"in c?e=a.pd(g||b,d&&c.foreach||[],c,b,f):d?(f="data"in c?f.ac(c.data,c.as):f,e=a.Cb(g||b,f,c,b)):a.f.za(b);f=e;(c=a.a.e.get(b,h))&&"function"==typeof c.k&&c.k();a.a.e.set(b,h,f&&f.ca()?f:n)}};a.h.va.template=function(b){b=a.h.Ab(b);return 1==b.length&&b[0].unknown||a.h.fd(b,"name")?null:"This template engine does not support anonymous templates nested within its templates"};a.f.aa.template=!0})();a.b("setTemplateEngine",a.Fb);a.b("renderTemplate",a.Cb);a.a.hc=function(a,c,d){if(a.length&&
+c.length){var e,f,g,h,l;for(e=f=0;(!d||e<d)&&(h=a[f]);++f){for(g=0;l=c[g];++g)if(h.value===l.value){h.moved=l.index;l.moved=h.index;c.splice(g,1);e=g=0;break}e+=g}}};a.a.lb=function(){function b(b,d,e,f,g){var h=Math.min,l=Math.max,m=[],k,n=b.length,q,p=d.length,s=p-n||1,t=n+p+1,v,u,x;for(k=0;k<=n;k++)for(u=v,m.push(v=[]),x=h(p,k+s),q=l(0,k-1);q<=x;q++)v[q]=q?k?b[k-1]===d[q-1]?u[q-1]:h(u[q]||t,v[q-1]||t)+1:q+1:k+1;h=[];l=[];s=[];k=n;for(q=p;k||q;)p=m[k][q]-1,q&&p===m[k][q-1]?l.push(h[h.length]={status:e,
+value:d[--q],index:q}):k&&p===m[k-1][q]?s.push(h[h.length]={status:f,value:b[--k],index:k}):(--q,--k,g.sparse||h.push({status:"retained",value:d[q]}));a.a.hc(s,l,!g.dontLimitMoves&&10*n);return h.reverse()}return function(a,d,e){e="boolean"===typeof e?{dontLimitMoves:e}:e||{};a=a||[];d=d||[];return a.length<d.length?b(a,d,"added","deleted",e):b(d,a,"deleted","added",e)}}();a.b("utils.compareArrays",a.a.lb);(function(){function b(b,c,d,h,l){var m=[],k=a.B(function(){var k=c(d,l,a.a.Ba(m,b))||[];0<
+m.length&&(a.a.uc(m,k),h&&a.l.w(h,null,[d,k,l]));m.length=0;a.a.ta(m,k)},null,{i:b,ya:function(){return!a.a.Tb(m)}});return{ea:m,B:k.ca()?k:n}}var c=a.a.e.J(),d=a.a.e.J();a.a.Db=function(e,f,g,h,l){function m(b,c){w=q[c];u!==c&&(D[b]=w);w.tb(u++);a.a.Ba(w.ea,e);t.push(w);z.push(w)}function k(b,c){if(b)for(var d=0,e=c.length;d<e;d++)c[d]&&a.a.r(c[d].ea,function(a){b(a,d,c[d].ka)})}f=f||[];h=h||{};var r=a.a.e.get(e,c)===n,q=a.a.e.get(e,c)||[],p=a.a.ib(q,function(a){return a.ka}),s=a.a.lb(p,f,h.dontLimitMoves),
+t=[],v=0,u=0,x=[],z=[];f=[];for(var D=[],p=[],w,C=0,B,E;B=s[C];C++)switch(E=B.moved,B.status){case "deleted":E===n&&(w=q[v],w.B&&(w.B.k(),w.B=n),a.a.Ba(w.ea,e).length&&(h.beforeRemove&&(t.push(w),z.push(w),w.ka===d?w=null:f[C]=w),w&&x.push.apply(x,w.ea)));v++;break;case "retained":m(C,v++);break;case "added":E!==n?m(C,E):(w={ka:B.value,tb:a.O(u++)},t.push(w),z.push(w),r||(p[C]=w))}a.a.e.set(e,c,t);k(h.beforeMove,D);a.a.r(x,h.beforeRemove?a.ba:a.removeNode);for(var C=0,r=a.f.firstChild(e),F;w=z[C];C++){w.ea||
+a.a.extend(w,b(e,g,w.ka,l,w.tb));for(v=0;s=w.ea[v];r=s.nextSibling,F=s,v++)s!==r&&a.f.kc(e,s,F);!w.ad&&l&&(l(w.ka,w.ea,w.tb),w.ad=!0)}k(h.beforeRemove,f);for(C=0;C<f.length;++C)f[C]&&(f[C].ka=d);k(h.afterMove,D);k(h.afterAdd,p)}})();a.b("utils.setDomNodeChildrenFromArrayMapping",a.a.Db);a.X=function(){this.allowTemplateRewriting=!1};a.X.prototype=new a.P;a.X.prototype.renderTemplateSource=function(b,c,d,e){if(c=(9>a.a.C?0:b.nodes)?b.nodes():null)return a.a.W(c.cloneNode(!0).childNodes);b=b.text();
+return a.a.na(b,e)};a.X.vb=new a.X;a.Fb(a.X.vb);a.b("nativeTemplateEngine",a.X);(function(){a.xb=function(){var a=this.ed=function(){if(!u||!u.tmpl)return 0;try{if(0<=u.tmpl.tag.tmpl.open.toString().indexOf("__"))return 2}catch(a){}return 1}();this.renderTemplateSource=function(b,e,f,g){g=g||t;f=f||{};if(2>a)throw Error("Your version of jQuery.tmpl is too old. Please upgrade to jQuery.tmpl 1.0.0pre or later.");var h=b.data("precompiled");h||(h=b.text()||"",h=u.template(null,"{{ko_with $item.koBindingContext}}"+
+h+"{{/ko_with}}"),b.data("precompiled",h));b=[e.$data];e=u.extend({koBindingContext:e},f.templateOptions);e=u.tmpl(h,b,e);e.appendTo(g.createElement("div"));u.fragments={};return e};this.createJavaScriptEvaluatorBlock=function(a){return"{{ko_code ((function() { return "+a+" })()) }}"};this.addTemplate=function(a,b){t.write("<script type='text/html' id='"+a+"'>"+b+"\x3c/script>")};0<a&&(u.tmpl.tag.ko_code={open:"__.push($1 || '');"},u.tmpl.tag.ko_with={open:"with($1) {",close:"} "})};a.xb.prototype=
+new a.P;var b=new a.xb;0<b.ed&&a.Fb(b);a.b("jqueryTmplTemplateEngine",a.xb)})()})})();})();

demo/filebrowser-durandal-widget/lib/knockout/package.json

@@ -0,0 +1,39 @@
+{
+  "name": "knockout",
+  "description": "Knockout makes it easier to create rich, responsive UIs with JavaScript",
+  "homepage": "http://knockoutjs.com/",
+  "version": "3.4.2",
+  "license": "MIT",
+  "author": "The Knockout.js team",
+  "main": "build/output/knockout-latest.debug.js",
+  "scripts": {
+    "prepublish": "grunt",
+    "test": "node spec/runner.node.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/knockout/knockout.git"
+  },
+  "bugs": "https://github.com/knockout/knockout/issues",
+  "testling": {
+    "preprocess": "build/build.sh",
+    "html": "spec/runner.html?src=build/output/knockout-latest.js&testling=true",
+    "browsers": [
+      "ie/6..latest",
+      "chrome/20..latest",
+      "firefox/3..latest",
+      "safari/5.0.5..latest",
+      "opera/11.0..latest",
+      "iphone/6..latest",
+      "ipad/6..latest"
+    ]
+  },
+  "licenses": [
+    { "type": "MIT", "url": "http://www.opensource.org/licenses/mit-license.php" }
+  ],
+  "devDependencies": {
+    "grunt": "~0.4.1",
+    "grunt-cli": "~0.1.0",
+    "closure-compiler": "~0.2.1"
+  }
+}

demo/filebrowser-durandal-widget/lib/knockout/src/binding/bindingAttributeSyntax.js

@@ -0,0 +1,476 @@
+(function () {
+    ko.bindingHandlers = {};
+
+    // The following element types will not be recursed into during binding.
+    var bindingDoesNotRecurseIntoElementTypes = {
+        // Don't want bindings that operate on text nodes to mutate <script> and <textarea> contents,
+        // because it's unexpected and a potential XSS issue.
+        // Also bindings should not operate on <template> elements since this breaks in Internet Explorer
+        // and because such elements' contents are always intended to be bound in a different context
+        // from where they appear in the document.
+        'script': true,
+        'textarea': true,
+        'template': true
+    };
+
+    // Use an overridable method for retrieving binding handlers so that a plugins may support dynamically created handlers
+    ko['getBindingHandler'] = function(bindingKey) {
+        return ko.bindingHandlers[bindingKey];
+    };
+
+    // The ko.bindingContext constructor is only called directly to create the root context. For child
+    // contexts, use bindingContext.createChildContext or bindingContext.extend.
+    ko.bindingContext = function(dataItemOrAccessor, parentContext, dataItemAlias, extendCallback, options) {
+
+        // The binding context object includes static properties for the current, parent, and root view models.
+        // If a view model is actually stored in an observable, the corresponding binding context object, and
+        // any child contexts, must be updated when the view model is changed.
+        function updateContext() {
+            // Most of the time, the context will directly get a view model object, but if a function is given,
+            // we call the function to retrieve the view model. If the function accesses any observables or returns
+            // an observable, the dependency is tracked, and those observables can later cause the binding
+            // context to be updated.
+            var dataItemOrObservable = isFunc ? dataItemOrAccessor() : dataItemOrAccessor,
+                dataItem = ko.utils.unwrapObservable(dataItemOrObservable);
+
+            if (parentContext) {
+                // When a "parent" context is given, register a dependency on the parent context. Thus whenever the
+                // parent context is updated, this context will also be updated.
+                if (parentContext._subscribable)
+                    parentContext._subscribable();
+
+                // Copy $root and any custom properties from the parent context
+                ko.utils.extend(self, parentContext);
+
+                // Because the above copy overwrites our own properties, we need to reset them.
+                self._subscribable = subscribable;
+            } else {
+                self['$parents'] = [];
+                self['$root'] = dataItem;
+
+                // Export 'ko' in the binding context so it will be available in bindings and templates
+                // even if 'ko' isn't exported as a global, such as when using an AMD loader.
+                // See https://github.com/SteveSanderson/knockout/issues/490
+                self['ko'] = ko;
+            }
+            self['$rawData'] = dataItemOrObservable;
+            self['$data'] = dataItem;
+            if (dataItemAlias)
+                self[dataItemAlias] = dataItem;
+
+            // The extendCallback function is provided when creating a child context or extending a context.
+            // It handles the specific actions needed to finish setting up the binding context. Actions in this
+            // function could also add dependencies to this binding context.
+            if (extendCallback)
+                extendCallback(self, parentContext, dataItem);
+
+            return self['$data'];
+        }
+        function disposeWhen() {
+            return nodes && !ko.utils.anyDomNodeIsAttachedToDocument(nodes);
+        }
+
+        var self = this,
+            isFunc = typeof(dataItemOrAccessor) == "function" && !ko.isObservable(dataItemOrAccessor),
+            nodes,
+            subscribable;
+
+        if (options && options['exportDependencies']) {
+            // The "exportDependencies" option means that the calling code will track any dependencies and re-create
+            // the binding context when they change.
+            updateContext();
+        } else {
+            subscribable = ko.dependentObservable(updateContext, null, { disposeWhen: disposeWhen, disposeWhenNodeIsRemoved: true });
+
+            // At this point, the binding context has been initialized, and the "subscribable" computed observable is
+            // subscribed to any observables that were accessed in the process. If there is nothing to track, the
+            // computed will be inactive, and we can safely throw it away. If it's active, the computed is stored in
+            // the context object.
+            if (subscribable.isActive()) {
+                self._subscribable = subscribable;
+
+                // Always notify because even if the model ($data) hasn't changed, other context properties might have changed
+                subscribable['equalityComparer'] = null;
+
+                // We need to be able to dispose of this computed observable when it's no longer needed. This would be
+                // easy if we had a single node to watch, but binding contexts can be used by many different nodes, and
+                // we cannot assume that those nodes have any relation to each other. So instead we track any node that
+                // the context is attached to, and dispose the computed when all of those nodes have been cleaned.
+
+                // Add properties to *subscribable* instead of *self* because any properties added to *self* may be overwritten on updates
+                nodes = [];
+                subscribable._addNode = function(node) {
+                    nodes.push(node);
+                    ko.utils.domNodeDisposal.addDisposeCallback(node, function(node) {
+                        ko.utils.arrayRemoveItem(nodes, node);
+                        if (!nodes.length) {
+                            subscribable.dispose();
+                            self._subscribable = subscribable = undefined;
+                        }
+                    });
+                };
+            }
+        }
+    }
+
+    // Extend the binding context hierarchy with a new view model object. If the parent context is watching
+    // any observables, the new child context will automatically get a dependency on the parent context.
+    // But this does not mean that the $data value of the child context will also get updated. If the child
+    // view model also depends on the parent view model, you must provide a function that returns the correct
+    // view model on each update.
+    ko.bindingContext.prototype['createChildContext'] = function (dataItemOrAccessor, dataItemAlias, extendCallback, options) {
+        return new ko.bindingContext(dataItemOrAccessor, this, dataItemAlias, function(self, parentContext) {
+            // Extend the context hierarchy by setting the appropriate pointers
+            self['$parentContext'] = parentContext;
+            self['$parent'] = parentContext['$data'];
+            self['$parents'] = (parentContext['$parents'] || []).slice(0);
+            self['$parents'].unshift(self['$parent']);
+            if (extendCallback)
+                extendCallback(self);
+        }, options);
+    };
+
+    // Extend the binding context with new custom properties. This doesn't change the context hierarchy.
+    // Similarly to "child" contexts, provide a function here to make sure that the correct values are set
+    // when an observable view model is updated.
+    ko.bindingContext.prototype['extend'] = function(properties) {
+        // If the parent context references an observable view model, "_subscribable" will always be the
+        // latest view model object. If not, "_subscribable" isn't set, and we can use the static "$data" value.
+        return new ko.bindingContext(this._subscribable || this['$data'], this, null, function(self, parentContext) {
+            // This "child" context doesn't directly track a parent observable view model,
+            // so we need to manually set the $rawData value to match the parent.
+            self['$rawData'] = parentContext['$rawData'];
+            ko.utils.extend(self, typeof(properties) == "function" ? properties() : properties);
+        });
+    };
+
+    ko.bindingContext.prototype.createStaticChildContext = function (dataItemOrAccessor, dataItemAlias) {
+        return this['createChildContext'](dataItemOrAccessor, dataItemAlias, null, { "exportDependencies": true });
+    };
+
+    // Returns the valueAccesor function for a binding value
+    function makeValueAccessor(value) {
+        return function() {
+            return value;
+        };
+    }
+
+    // Returns the value of a valueAccessor function
+    function evaluateValueAccessor(valueAccessor) {
+        return valueAccessor();
+    }
+
+    // Given a function that returns bindings, create and return a new object that contains
+    // binding value-accessors functions. Each accessor function calls the original function
+    // so that it always gets the latest value and all dependencies are captured. This is used
+    // by ko.applyBindingsToNode and getBindingsAndMakeAccessors.
+    function makeAccessorsFromFunction(callback) {
+        return ko.utils.objectMap(ko.dependencyDetection.ignore(callback), function(value, key) {
+            return function() {
+                return callback()[key];
+            };
+        });
+    }
+
+    // Given a bindings function or object, create and return a new object that contains
+    // binding value-accessors functions. This is used by ko.applyBindingsToNode.
+    function makeBindingAccessors(bindings, context, node) {
+        if (typeof bindings === 'function') {
+            return makeAccessorsFromFunction(bindings.bind(null, context, node));
+        } else {
+            return ko.utils.objectMap(bindings, makeValueAccessor);
+        }
+    }
+
+    // This function is used if the binding provider doesn't include a getBindingAccessors function.
+    // It must be called with 'this' set to the provider instance.
+    function getBindingsAndMakeAccessors(node, context) {
+        return makeAccessorsFromFunction(this['getBindings'].bind(this, node, context));
+    }
+
+    function validateThatBindingIsAllowedForVirtualElements(bindingName) {
+        var validator = ko.virtualElements.allowedBindings[bindingName];
+        if (!validator)
+            throw new Error("The binding '" + bindingName + "' cannot be used with virtual elements")
+    }
+
+    function applyBindingsToDescendantsInternal (bindingContext, elementOrVirtualElement, bindingContextsMayDifferFromDomParentElement) {
+        var currentChild,
+            nextInQueue = ko.virtualElements.firstChild(elementOrVirtualElement),
+            provider = ko.bindingProvider['instance'],
+            preprocessNode = provider['preprocessNode'];
+
+        // Preprocessing allows a binding provider to mutate a node before bindings are applied to it. For example it's
+        // possible to insert new siblings after it, and/or replace the node with a different one. This can be used to
+        // implement custom binding syntaxes, such as {{ value }} for string interpolation, or custom element types that
+        // trigger insertion of <template> contents at that point in the document.
+        if (preprocessNode) {
+            while (currentChild = nextInQueue) {
+                nextInQueue = ko.virtualElements.nextSibling(currentChild);
+                preprocessNode.call(provider, currentChild);
+            }
+            // Reset nextInQueue for the next loop
+            nextInQueue = ko.virtualElements.firstChild(elementOrVirtualElement);
+        }
+
+        while (currentChild = nextInQueue) {
+            // Keep a record of the next child *before* applying bindings, in case the binding removes the current child from its position
+            nextInQueue = ko.virtualElements.nextSibling(currentChild);
+            applyBindingsToNodeAndDescendantsInternal(bindingContext, currentChild, bindingContextsMayDifferFromDomParentElement);
+        }
+    }
+
+    function applyBindingsToNodeAndDescendantsInternal (bindingContext, nodeVerified, bindingContextMayDifferFromDomParentElement) {
+        var shouldBindDescendants = true;
+
+        // Perf optimisation: Apply bindings only if...
+        // (1) We need to store the binding context on this node (because it may differ from the DOM parent node's binding context)
+        //     Note that we can't store binding contexts on non-elements (e.g., text nodes), as IE doesn't allow expando properties for those
+        // (2) It might have bindings (e.g., it has a data-bind attribute, or it's a marker for a containerless template)
+        var isElement = (nodeVerified.nodeType === 1);
+        if (isElement) // Workaround IE <= 8 HTML parsing weirdness
+            ko.virtualElements.normaliseVirtualElementDomStructure(nodeVerified);
+
+        var shouldApplyBindings = (isElement && bindingContextMayDifferFromDomParentElement)             // Case (1)
+                               || ko.bindingProvider['instance']['nodeHasBindings'](nodeVerified);       // Case (2)
+        if (shouldApplyBindings)
+            shouldBindDescendants = applyBindingsToNodeInternal(nodeVerified, null, bindingContext, bindingContextMayDifferFromDomParentElement)['shouldBindDescendants'];
+
+        if (shouldBindDescendants && !bindingDoesNotRecurseIntoElementTypes[ko.utils.tagNameLower(nodeVerified)]) {
+            // We're recursing automatically into (real or virtual) child nodes without changing binding contexts. So,
+            //  * For children of a *real* element, the binding context is certainly the same as on their DOM .parentNode,
+            //    hence bindingContextsMayDifferFromDomParentElement is false
+            //  * For children of a *virtual* element, we can't be sure. Evaluating .parentNode on those children may
+            //    skip over any number of intermediate virtual elements, any of which might define a custom binding context,
+            //    hence bindingContextsMayDifferFromDomParentElement is true
+            applyBindingsToDescendantsInternal(bindingContext, nodeVerified, /* bindingContextsMayDifferFromDomParentElement: */ !isElement);
+        }
+    }
+
+    var boundElementDomDataKey = ko.utils.domData.nextKey();
+
+
+    function topologicalSortBindings(bindings) {
+        // Depth-first sort
+        var result = [],                // The list of key/handler pairs that we will return
+            bindingsConsidered = {},    // A temporary record of which bindings are already in 'result'
+            cyclicDependencyStack = []; // Keeps track of a depth-search so that, if there's a cycle, we know which bindings caused it
+        ko.utils.objectForEach(bindings, function pushBinding(bindingKey) {
+            if (!bindingsConsidered[bindingKey]) {
+                var binding = ko['getBindingHandler'](bindingKey);
+                if (binding) {
+                    // First add dependencies (if any) of the current binding
+                    if (binding['after']) {
+                        cyclicDependencyStack.push(bindingKey);
+                        ko.utils.arrayForEach(binding['after'], function(bindingDependencyKey) {
+                            if (bindings[bindingDependencyKey]) {
+                                if (ko.utils.arrayIndexOf(cyclicDependencyStack, bindingDependencyKey) !== -1) {
+                                    throw Error("Cannot combine the following bindings, because they have a cyclic dependency: " + cyclicDependencyStack.join(", "));
+                                } else {
+                                    pushBinding(bindingDependencyKey);
+                                }
+                            }
+                        });
+                        cyclicDependencyStack.length--;
+                    }
+                    // Next add the current binding
+                    result.push({ key: bindingKey, handler: binding });
+                }
+                bindingsConsidered[bindingKey] = true;
+            }
+        });
+
+        return result;
+    }
+
+    function applyBindingsToNodeInternal(node, sourceBindings, bindingContext, bindingContextMayDifferFromDomParentElement) {
+        // Prevent multiple applyBindings calls for the same node, except when a binding value is specified
+        var alreadyBound = ko.utils.domData.get(node, boundElementDomDataKey);
+        if (!sourceBindings) {
+            if (alreadyBound) {
+                throw Error("You cannot apply bindings multiple times to the same element.");
+            }
+            ko.utils.domData.set(node, boundElementDomDataKey, true);
+        }
+
+        // Optimization: Don't store the binding context on this node if it's definitely the same as on node.parentNode, because
+        // we can easily recover it just by scanning up the node's ancestors in the DOM
+        // (note: here, parent node means "real DOM parent" not "virtual parent", as there's no O(1) way to find the virtual parent)
+        if (!alreadyBound && bindingContextMayDifferFromDomParentElement)
+            ko.storedBindingContextForNode(node, bindingContext);
+
+        // Use bindings if given, otherwise fall back on asking the bindings provider to give us some bindings
+        var bindings;
+        if (sourceBindings && typeof sourceBindings !== 'function') {
+            bindings = sourceBindings;
+        } else {
+            var provider = ko.bindingProvider['instance'],
+                getBindings = provider['getBindingAccessors'] || getBindingsAndMakeAccessors;
+
+            // Get the binding from the provider within a computed observable so that we can update the bindings whenever
+            // the binding context is updated or if the binding provider accesses observables.
+            var bindingsUpdater = ko.dependentObservable(
+                function() {
+                    bindings = sourceBindings ? sourceBindings(bindingContext, node) : getBindings.call(provider, node, bindingContext);
+                    // Register a dependency on the binding context to support observable view models.
+                    if (bindings && bindingContext._subscribable)
+                        bindingContext._subscribable();
+                    return bindings;
+                },
+                null, { disposeWhenNodeIsRemoved: node }
+            );
+
+            if (!bindings || !bindingsUpdater.isActive())
+                bindingsUpdater = null;
+        }
+
+        var bindingHandlerThatControlsDescendantBindings;
+        if (bindings) {
+            // Return the value accessor for a given binding. When bindings are static (won't be updated because of a binding
+            // context update), just return the value accessor from the binding. Otherwise, return a function that always gets
+            // the latest binding value and registers a dependency on the binding updater.
+            var getValueAccessor = bindingsUpdater
+                ? function(bindingKey) {
+                    return function() {
+                        return evaluateValueAccessor(bindingsUpdater()[bindingKey]);
+                    };
+                } : function(bindingKey) {
+                    return bindings[bindingKey];
+                };
+
+            // Use of allBindings as a function is maintained for backwards compatibility, but its use is deprecated
+            function allBindings() {
+                return ko.utils.objectMap(bindingsUpdater ? bindingsUpdater() : bindings, evaluateValueAccessor);
+            }
+            // The following is the 3.x allBindings API
+            allBindings['get'] = function(key) {
+                return bindings[key] && evaluateValueAccessor(getValueAccessor(key));
+            };
+            allBindings['has'] = function(key) {
+                return key in bindings;
+            };
+
+            // First put the bindings into the right order
+            var orderedBindings = topologicalSortBindings(bindings);
+
+            // Go through the sorted bindings, calling init and update for each
+            ko.utils.arrayForEach(orderedBindings, function(bindingKeyAndHandler) {
+                // Note that topologicalSortBindings has already filtered out any nonexistent binding handlers,
+                // so bindingKeyAndHandler.handler will always be nonnull.
+                var handlerInitFn = bindingKeyAndHandler.handler["init"],
+                    handlerUpdateFn = bindingKeyAndHandler.handler["update"],
+                    bindingKey = bindingKeyAndHandler.key;
+
+                if (node.nodeType === 8) {
+                    validateThatBindingIsAllowedForVirtualElements(bindingKey);
+                }
+
+                try {
+                    // Run init, ignoring any dependencies
+                    if (typeof handlerInitFn == "function") {
+                        ko.dependencyDetection.ignore(function() {
+                            var initResult = handlerInitFn(node, getValueAccessor(bindingKey), allBindings, bindingContext['$data'], bindingContext);
+
+                            // If this binding handler claims to control descendant bindings, make a note of this
+                            if (initResult && initResult['controlsDescendantBindings']) {
+                                if (bindingHandlerThatControlsDescendantBindings !== undefined)
+                                    throw new Error("Multiple bindings (" + bindingHandlerThatControlsDescendantBindings + " and " + bindingKey + ") are trying to control descendant bindings of the same element. You cannot use these bindings together on the same element.");
+                                bindingHandlerThatControlsDescendantBindings = bindingKey;
+                            }
+                        });
+                    }
+
+                    // Run update in its own computed wrapper
+                    if (typeof handlerUpdateFn == "function") {
+                        ko.dependentObservable(
+                            function() {
+                                handlerUpdateFn(node, getValueAccessor(bindingKey), allBindings, bindingContext['$data'], bindingContext);
+                            },
+                            null,
+                            { disposeWhenNodeIsRemoved: node }
+                        );
+                    }
+                } catch (ex) {
+                    ex.message = "Unable to process binding \"" + bindingKey + ": " + bindings[bindingKey] + "\"\nMessage: " + ex.message;
+                    throw ex;
+                }
+            });
+        }
+
+        return {
+            'shouldBindDescendants': bindingHandlerThatControlsDescendantBindings === undefined
+        };
+    };
+
+    var storedBindingContextDomDataKey = ko.utils.domData.nextKey();
+    ko.storedBindingContextForNode = function (node, bindingContext) {
+        if (arguments.length == 2) {
+            ko.utils.domData.set(node, storedBindingContextDomDataKey, bindingContext);
+            if (bindingContext._subscribable)
+                bindingContext._subscribable._addNode(node);
+        } else {
+            return ko.utils.domData.get(node, storedBindingContextDomDataKey);
+        }
+    }
+
+    function getBindingContext(viewModelOrBindingContext) {
+        return viewModelOrBindingContext && (viewModelOrBindingContext instanceof ko.bindingContext)
+            ? viewModelOrBindingContext
+            : new ko.bindingContext(viewModelOrBindingContext);
+    }
+
+    ko.applyBindingAccessorsToNode = function (node, bindings, viewModelOrBindingContext) {
+        if (node.nodeType === 1) // If it's an element, workaround IE <= 8 HTML parsing weirdness
+            ko.virtualElements.normaliseVirtualElementDomStructure(node);
+        return applyBindingsToNodeInternal(node, bindings, getBindingContext(viewModelOrBindingContext), true);
+    };
+
+    ko.applyBindingsToNode = function (node, bindings, viewModelOrBindingContext) {
+        var context = getBindingContext(viewModelOrBindingContext);
+        return ko.applyBindingAccessorsToNode(node, makeBindingAccessors(bindings, context, node), context);
+    };
+
+    ko.applyBindingsToDescendants = function(viewModelOrBindingContext, rootNode) {
+        if (rootNode.nodeType === 1 || rootNode.nodeType === 8)
+            applyBindingsToDescendantsInternal(getBindingContext(viewModelOrBindingContext), rootNode, true);
+    };
+
+    ko.applyBindings = function (viewModelOrBindingContext, rootNode) {
+        // If jQuery is loaded after Knockout, we won't initially have access to it. So save it here.
+        if (!jQueryInstance && window['jQuery']) {
+            jQueryInstance = window['jQuery'];
+        }
+
+        if (rootNode && (rootNode.nodeType !== 1) && (rootNode.nodeType !== 8))
+            throw new Error("ko.applyBindings: first parameter should be your view model; second parameter should be a DOM node");
+        rootNode = rootNode || window.document.body; // Make "rootNode" parameter optional
+
+        applyBindingsToNodeAndDescendantsInternal(getBindingContext(viewModelOrBindingContext), rootNode, true);
+    };
+
+    // Retrieving binding context from arbitrary nodes
+    ko.contextFor = function(node) {
+        // We can only do something meaningful for elements and comment nodes (in particular, not text nodes, as IE can't store domdata for them)
+        switch (node.nodeType) {
+            case 1:
+            case 8:
+                var context = ko.storedBindingContextForNode(node);
+                if (context) return context;
+                if (node.parentNode) return ko.contextFor(node.parentNode);
+                break;
+        }
+        return undefined;
+    };
+    ko.dataFor = function(node) {
+        var context = ko.contextFor(node);
+        return context ? context['$data'] : undefined;
+    };
+
+    ko.exportSymbol('bindingHandlers', ko.bindingHandlers);
+    ko.exportSymbol('applyBindings', ko.applyBindings);
+    ko.exportSymbol('applyBindingsToDescendants', ko.applyBindingsToDescendants);
+    ko.exportSymbol('applyBindingAccessorsToNode', ko.applyBindingAccessorsToNode);
+    ko.exportSymbol('applyBindingsToNode', ko.applyBindingsToNode);
+    ko.exportSymbol('contextFor', ko.contextFor);
+    ko.exportSymbol('dataFor', ko.dataFor);
+})();

demo/filebrowser-durandal-widget/lib/knockout/src/binding/bindingProvider.js

@@ -0,0 +1,73 @@
+(function() {
+    var defaultBindingAttributeName = "data-bind";
+
+    ko.bindingProvider = function() {
+        this.bindingCache = {};
+    };
+
+    ko.utils.extend(ko.bindingProvider.prototype, {
+        'nodeHasBindings': function(node) {
+            switch (node.nodeType) {
+                case 1: // Element
+                    return node.getAttribute(defaultBindingAttributeName) != null
+                        || ko.components['getComponentNameForNode'](node);
+                case 8: // Comment node
+                    return ko.virtualElements.hasBindingValue(node);
+                default: return false;
+            }
+        },
+
+        'getBindings': function(node, bindingContext) {
+            var bindingsString = this['getBindingsString'](node, bindingContext),
+                parsedBindings = bindingsString ? this['parseBindingsString'](bindingsString, bindingContext, node) : null;
+            return ko.components.addBindingsForCustomElement(parsedBindings, node, bindingContext, /* valueAccessors */ false);
+        },
+
+        'getBindingAccessors': function(node, bindingContext) {
+            var bindingsString = this['getBindingsString'](node, bindingContext),
+                parsedBindings = bindingsString ? this['parseBindingsString'](bindingsString, bindingContext, node, { 'valueAccessors': true }) : null;
+            return ko.components.addBindingsForCustomElement(parsedBindings, node, bindingContext, /* valueAccessors */ true);
+        },
+
+        // The following function is only used internally by this default provider.
+        // It's not part of the interface definition for a general binding provider.
+        'getBindingsString': function(node, bindingContext) {
+            switch (node.nodeType) {
+                case 1: return node.getAttribute(defaultBindingAttributeName);   // Element
+                case 8: return ko.virtualElements.virtualNodeBindingValue(node); // Comment node
+                default: return null;
+            }
+        },
+
+        // The following function is only used internally by this default provider.
+        // It's not part of the interface definition for a general binding provider.
+        'parseBindingsString': function(bindingsString, bindingContext, node, options) {
+            try {
+                var bindingFunction = createBindingsStringEvaluatorViaCache(bindingsString, this.bindingCache, options);
+                return bindingFunction(bindingContext, node);
+            } catch (ex) {
+                ex.message = "Unable to parse bindings.\nBindings value: " + bindingsString + "\nMessage: " + ex.message;
+                throw ex;
+            }
+        }
+    });
+
+    ko.bindingProvider['instance'] = new ko.bindingProvider();
+
+    function createBindingsStringEvaluatorViaCache(bindingsString, cache, options) {
+        var cacheKey = bindingsString + (options && options['valueAccessors'] || '');
+        return cache[cacheKey]
+            || (cache[cacheKey] = createBindingsStringEvaluator(bindingsString, options));
+    }
+
+    function createBindingsStringEvaluator(bindingsString, options) {
+        // Build the source for a function that evaluates "expression"
+        // For each scope variable, add an extra level of "with" nesting
+        // Example result: with(sc1) { with(sc0) { return (expression) } }
+        var rewrittenBindings = ko.expressionRewriting.preProcessBindings(bindingsString, options),
+            functionBody = "with($context){with($data||{}){return{" + rewrittenBindings + "}}}";
+        return new Function("$context", "$element", functionBody);
+    }
+})();
+
+ko.exportSymbol('bindingProvider', ko.bindingProvider);

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/attr.js

@@ -0,0 +1,38 @@
+var attrHtmlToJavascriptMap = { 'class': 'className', 'for': 'htmlFor' };
+ko.bindingHandlers['attr'] = {
+    'update': function(element, valueAccessor, allBindings) {
+        var value = ko.utils.unwrapObservable(valueAccessor()) || {};
+        ko.utils.objectForEach(value, function(attrName, attrValue) {
+            attrValue = ko.utils.unwrapObservable(attrValue);
+
+            // To cover cases like "attr: { checked:someProp }", we want to remove the attribute entirely
+            // when someProp is a "no value"-like value (strictly null, false, or undefined)
+            // (because the absence of the "checked" attr is how to mark an element as not checked, etc.)
+            var toRemove = (attrValue === false) || (attrValue === null) || (attrValue === undefined);
+            if (toRemove)
+                element.removeAttribute(attrName);
+
+            // In IE <= 7 and IE8 Quirks Mode, you have to use the Javascript property name instead of the
+            // HTML attribute name for certain attributes. IE8 Standards Mode supports the correct behavior,
+            // but instead of figuring out the mode, we'll just set the attribute through the Javascript
+            // property for IE <= 8.
+            if (ko.utils.ieVersion <= 8 && attrName in attrHtmlToJavascriptMap) {
+                attrName = attrHtmlToJavascriptMap[attrName];
+                if (toRemove)
+                    element.removeAttribute(attrName);
+                else
+                    element[attrName] = attrValue;
+            } else if (!toRemove) {
+                element.setAttribute(attrName, attrValue.toString());
+            }
+
+            // Treat "name" specially - although you can think of it as an attribute, it also needs
+            // special handling on older versions of IE (https://github.com/SteveSanderson/knockout/pull/333)
+            // Deliberately being case-sensitive here because XHTML would regard "Name" as a different thing
+            // entirely, and there's no strong reason to allow for such casing in HTML.
+            if (attrName === "name") {
+                ko.utils.setElementName(element, toRemove ? "" : attrValue.toString());
+            }
+        });
+    }
+};

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/checked.js

@@ -0,0 +1,115 @@
+(function() {
+
+ko.bindingHandlers['checked'] = {
+    'after': ['value', 'attr'],
+    'init': function (element, valueAccessor, allBindings) {
+        var checkedValue = ko.pureComputed(function() {
+            // Treat "value" like "checkedValue" when it is included with "checked" binding
+            if (allBindings['has']('checkedValue')) {
+                return ko.utils.unwrapObservable(allBindings.get('checkedValue'));
+            } else if (allBindings['has']('value')) {
+                return ko.utils.unwrapObservable(allBindings.get('value'));
+            }
+
+            return element.value;
+        });
+
+        function updateModel() {
+            // This updates the model value from the view value.
+            // It runs in response to DOM events (click) and changes in checkedValue.
+            var isChecked = element.checked,
+                elemValue = useCheckedValue ? checkedValue() : isChecked;
+
+            // When we're first setting up this computed, don't change any model state.
+            if (ko.computedContext.isInitial()) {
+                return;
+            }
+
+            // We can ignore unchecked radio buttons, because some other radio
+            // button will be getting checked, and that one can take care of updating state.
+            if (isRadio && !isChecked) {
+                return;
+            }
+
+            var modelValue = ko.dependencyDetection.ignore(valueAccessor);
+            if (valueIsArray) {
+                var writableValue = rawValueIsNonArrayObservable ? modelValue.peek() : modelValue;
+                if (oldElemValue !== elemValue) {
+                    // When we're responding to the checkedValue changing, and the element is
+                    // currently checked, replace the old elem value with the new elem value
+                    // in the model array.
+                    if (isChecked) {
+                        ko.utils.addOrRemoveItem(writableValue, elemValue, true);
+                        ko.utils.addOrRemoveItem(writableValue, oldElemValue, false);
+                    }
+
+                    oldElemValue = elemValue;
+                } else {
+                    // When we're responding to the user having checked/unchecked a checkbox,
+                    // add/remove the element value to the model array.
+                    ko.utils.addOrRemoveItem(writableValue, elemValue, isChecked);
+                }
+                if (rawValueIsNonArrayObservable && ko.isWriteableObservable(modelValue)) {
+                    modelValue(writableValue);
+                }
+            } else {
+                ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'checked', elemValue, true);
+            }
+        };
+
+        function updateView() {
+            // This updates the view value from the model value.
+            // It runs in response to changes in the bound (checked) value.
+            var modelValue = ko.utils.unwrapObservable(valueAccessor());
+
+            if (valueIsArray) {
+                // When a checkbox is bound to an array, being checked represents its value being present in that array
+                element.checked = ko.utils.arrayIndexOf(modelValue, checkedValue()) >= 0;
+            } else if (isCheckbox) {
+                // When a checkbox is bound to any other value (not an array), being checked represents the value being trueish
+                element.checked = modelValue;
+            } else {
+                // For radio buttons, being checked means that the radio button's value corresponds to the model value
+                element.checked = (checkedValue() === modelValue);
+            }
+        };
+
+        var isCheckbox = element.type == "checkbox",
+            isRadio = element.type == "radio";
+
+        // Only bind to check boxes and radio buttons
+        if (!isCheckbox && !isRadio) {
+            return;
+        }
+
+        var rawValue = valueAccessor(),
+            valueIsArray = isCheckbox && (ko.utils.unwrapObservable(rawValue) instanceof Array),
+            rawValueIsNonArrayObservable = !(valueIsArray && rawValue.push && rawValue.splice),
+            oldElemValue = valueIsArray ? checkedValue() : undefined,
+            useCheckedValue = isRadio || valueIsArray;
+
+        // IE 6 won't allow radio buttons to be selected unless they have a name
+        if (isRadio && !element.name)
+            ko.bindingHandlers['uniqueName']['init'](element, function() { return true });
+
+        // Set up two computeds to update the binding:
+
+        // The first responds to changes in the checkedValue value and to element clicks
+        ko.computed(updateModel, null, { disposeWhenNodeIsRemoved: element });
+        ko.utils.registerEventHandler(element, "click", updateModel);
+
+        // The second responds to changes in the model value (the one associated with the checked binding)
+        ko.computed(updateView, null, { disposeWhenNodeIsRemoved: element });
+
+        rawValue = undefined;
+    }
+};
+ko.expressionRewriting.twoWayBindings['checked'] = true;
+
+ko.bindingHandlers['checkedValue'] = {
+    'update': function (element, valueAccessor) {
+        element.value = ko.utils.unwrapObservable(valueAccessor());
+    }
+};
+
+})();

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/click.js

@@ -0,0 +1,2 @@
+// 'click' is just a shorthand for the usual full-length event:{click:handler}
+makeEventHandlerShortcut('click');

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/css.js

@@ -0,0 +1,17 @@
+var classesWrittenByBindingKey = '__ko__cssValue';
+ko.bindingHandlers['css'] = {
+    'update': function (element, valueAccessor) {
+        var value = ko.utils.unwrapObservable(valueAccessor());
+        if (value !== null && typeof value == "object") {
+            ko.utils.objectForEach(value, function(className, shouldHaveClass) {
+                shouldHaveClass = ko.utils.unwrapObservable(shouldHaveClass);
+                ko.utils.toggleDomNodeCssClass(element, className, shouldHaveClass);
+            });
+        } else {
+            value = ko.utils.stringTrim(String(value || '')); // Make sure we don't try to store or set a non-string value
+            ko.utils.toggleDomNodeCssClass(element, element[classesWrittenByBindingKey], false);
+            element[classesWrittenByBindingKey] = value;
+            ko.utils.toggleDomNodeCssClass(element, value, true);
+        }
+    }
+};

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/enableDisable.js

@@ -0,0 +1,15 @@
+ko.bindingHandlers['enable'] = {
+    'update': function (element, valueAccessor) {
+        var value = ko.utils.unwrapObservable(valueAccessor());
+        if (value && element.disabled)
+            element.removeAttribute("disabled");
+        else if ((!value) && (!element.disabled))
+            element.disabled = true;
+    }
+};
+
+ko.bindingHandlers['disable'] = {
+    'update': function (element, valueAccessor) {
+        ko.bindingHandlers['enable']['update'](element, function() { return !ko.utils.unwrapObservable(valueAccessor()) });
+    }
+};

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/event.js

@@ -0,0 +1,52 @@
+// For certain common events (currently just 'click'), allow a simplified data-binding syntax
+// e.g. click:handler instead of the usual full-length event:{click:handler}
+function makeEventHandlerShortcut(eventName) {
+    ko.bindingHandlers[eventName] = {
+        'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
+            var newValueAccessor = function () {
+                var result = {};
+                result[eventName] = valueAccessor();
+                return result;
+            };
+            return ko.bindingHandlers['event']['init'].call(this, element, newValueAccessor, allBindings, viewModel, bindingContext);
+        }
+    }
+}
+
+ko.bindingHandlers['event'] = {
+    'init' : function (element, valueAccessor, allBindings, viewModel, bindingContext) {
+        var eventsToHandle = valueAccessor() || {};
+        ko.utils.objectForEach(eventsToHandle, function(eventName) {
+            if (typeof eventName == "string") {
+                ko.utils.registerEventHandler(element, eventName, function (event) {
+                    var handlerReturnValue;
+                    var handlerFunction = valueAccessor()[eventName];
+                    if (!handlerFunction)
+                        return;
+
+                    try {
+                        // Take all the event args, and prefix with the viewmodel
+                        var argsForHandler = ko.utils.makeArray(arguments);
+                        viewModel = bindingContext['$data'];
+                        argsForHandler.unshift(viewModel);
+                        handlerReturnValue = handlerFunction.apply(viewModel, argsForHandler);
+                    } finally {
+                        if (handlerReturnValue !== true) { // Normally we want to prevent default action. Developer can override this be explicitly returning true.
+                            if (event.preventDefault)
+                                event.preventDefault();
+                            else
+                                event.returnValue = false;
+                        }
+                    }
+
+                    var bubble = allBindings.get(eventName + 'Bubble') !== false;
+                    if (!bubble) {
+                        event.cancelBubble = true;
+                        if (event.stopPropagation)
+                            event.stopPropagation();
+                    }
+                });
+            }
+        });
+    }
+};

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/foreach.js

@@ -0,0 +1,38 @@
+// "foreach: someExpression" is equivalent to "template: { foreach: someExpression }"
+// "foreach: { data: someExpression, afterAdd: myfn }" is equivalent to "template: { foreach: someExpression, afterAdd: myfn }"
+ko.bindingHandlers['foreach'] = {
+    makeTemplateValueAccessor: function(valueAccessor) {
+        return function() {
+            var modelValue = valueAccessor(),
+                unwrappedValue = ko.utils.peekObservable(modelValue);    // Unwrap without setting a dependency here
+
+            // If unwrappedValue is the array, pass in the wrapped value on its own
+            // The value will be unwrapped and tracked within the template binding
+            // (See https://github.com/SteveSanderson/knockout/issues/523)
+            if ((!unwrappedValue) || typeof unwrappedValue.length == "number")
+                return { 'foreach': modelValue, 'templateEngine': ko.nativeTemplateEngine.instance };
+
+            // If unwrappedValue.data is the array, preserve all relevant options and unwrap again value so we get updates
+            ko.utils.unwrapObservable(modelValue);
+            return {
+                'foreach': unwrappedValue['data'],
+                'as': unwrappedValue['as'],
+                'includeDestroyed': unwrappedValue['includeDestroyed'],
+                'afterAdd': unwrappedValue['afterAdd'],
+                'beforeRemove': unwrappedValue['beforeRemove'],
+                'afterRender': unwrappedValue['afterRender'],
+                'beforeMove': unwrappedValue['beforeMove'],
+                'afterMove': unwrappedValue['afterMove'],
+                'templateEngine': ko.nativeTemplateEngine.instance
+            };
+        };
+    },
+    'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
+        return ko.bindingHandlers['template']['init'](element, ko.bindingHandlers['foreach'].makeTemplateValueAccessor(valueAccessor));
+    },
+    'update': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
+        return ko.bindingHandlers['template']['update'](element, ko.bindingHandlers['foreach'].makeTemplateValueAccessor(valueAccessor), allBindings, viewModel, bindingContext);
+    }
+};
+ko.expressionRewriting.bindingRewriteValidators['foreach'] = false; // Can't rewrite control flow bindings
+ko.virtualElements.allowedBindings['foreach'] = true;

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/hasfocus.js

@@ -0,0 +1,60 @@
+var hasfocusUpdatingProperty = '__ko_hasfocusUpdating';
+var hasfocusLastValue = '__ko_hasfocusLastValue';
+ko.bindingHandlers['hasfocus'] = {
+    'init': function(element, valueAccessor, allBindings) {
+        var handleElementFocusChange = function(isFocused) {
+            // Where possible, ignore which event was raised and determine focus state using activeElement,
+            // as this avoids phantom focus/blur events raised when changing tabs in modern browsers.
+            // However, not all KO-targeted browsers (Firefox 2) support activeElement. For those browsers,
+            // prevent a loss of focus when changing tabs/windows by setting a flag that prevents hasfocus
+            // from calling 'blur()' on the element when it loses focus.
+            // Discussion at https://github.com/SteveSanderson/knockout/pull/352
+            element[hasfocusUpdatingProperty] = true;
+            var ownerDoc = element.ownerDocument;
+            if ("activeElement" in ownerDoc) {
+                var active;
+                try {
+                    active = ownerDoc.activeElement;
+                } catch(e) {
+                    // IE9 throws if you access activeElement during page load (see issue #703)
+                    active = ownerDoc.body;
+                }
+                isFocused = (active === element);
+            }
+            var modelValue = valueAccessor();
+            ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'hasfocus', isFocused, true);
+
+            //cache the latest value, so we can avoid unnecessarily calling focus/blur in the update function
+            element[hasfocusLastValue] = isFocused;
+            element[hasfocusUpdatingProperty] = false;
+        };
+        var handleElementFocusIn = handleElementFocusChange.bind(null, true);
+        var handleElementFocusOut = handleElementFocusChange.bind(null, false);
+
+        ko.utils.registerEventHandler(element, "focus", handleElementFocusIn);
+        ko.utils.registerEventHandler(element, "focusin", handleElementFocusIn); // For IE
+        ko.utils.registerEventHandler(element, "blur",  handleElementFocusOut);
+        ko.utils.registerEventHandler(element, "focusout",  handleElementFocusOut); // For IE
+    },
+    'update': function(element, valueAccessor) {
+        var value = !!ko.utils.unwrapObservable(valueAccessor());
+
+        if (!element[hasfocusUpdatingProperty] && element[hasfocusLastValue] !== value) {
+            value ? element.focus() : element.blur();
+
+            // In IE, the blur method doesn't always cause the element to lose focus (for example, if the window is not in focus).
+            // Setting focus to the body element does seem to be reliable in IE, but should only be used if we know that the current
+            // element was focused already.
+            if (!value && element[hasfocusLastValue]) {
+                element.ownerDocument.body.focus();
+            }
+
+            // For IE, which doesn't reliably fire "focus" or "blur" events synchronously
+            ko.dependencyDetection.ignore(ko.utils.triggerEvent, null, [element, value ? "focusin" : "focusout"]);
+        }
+    }
+};
+ko.expressionRewriting.twoWayBindings['hasfocus'] = true;
+
+ko.bindingHandlers['hasFocus'] = ko.bindingHandlers['hasfocus']; // Make "hasFocus" an alias
+ko.expressionRewriting.twoWayBindings['hasFocus'] = true;

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/html.js

@@ -0,0 +1,10 @@
+ko.bindingHandlers['html'] = {
+    'init': function() {
+        // Prevent binding on the dynamically-injected HTML (as developers are unlikely to expect that, and it has security implications)
+        return { 'controlsDescendantBindings': true };
+    },
+    'update': function (element, valueAccessor) {
+        // setHtml will unwrap the value if needed
+        ko.utils.setHtml(element, valueAccessor());
+    }
+};

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/ifIfnotWith.js

@@ -0,0 +1,46 @@
+// Makes a binding like with or if
+function makeWithIfBinding(bindingKey, isWith, isNot, makeContextCallback) {
+    ko.bindingHandlers[bindingKey] = {
+        'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
+            var didDisplayOnLastUpdate,
+                savedNodes;
+            ko.computed(function() {
+                var rawValue = valueAccessor(),
+                    dataValue = ko.utils.unwrapObservable(rawValue),
+                    shouldDisplay = !isNot !== !dataValue, // equivalent to isNot ? !dataValue : !!dataValue
+                    isFirstRender = !savedNodes,
+                    needsRefresh = isFirstRender || isWith || (shouldDisplay !== didDisplayOnLastUpdate);
+
+                if (needsRefresh) {
+                    // Save a copy of the inner nodes on the initial update, but only if we have dependencies.
+                    if (isFirstRender && ko.computedContext.getDependenciesCount()) {
+                        savedNodes = ko.utils.cloneNodes(ko.virtualElements.childNodes(element), true /* shouldCleanNodes */);
+                    }
+
+                    if (shouldDisplay) {
+                        if (!isFirstRender) {
+                            ko.virtualElements.setDomNodeChildren(element, ko.utils.cloneNodes(savedNodes));
+                        }
+                        ko.applyBindingsToDescendants(makeContextCallback ? makeContextCallback(bindingContext, rawValue) : bindingContext, element);
+                    } else {
+                        ko.virtualElements.emptyNode(element);
+                    }
+
+                    didDisplayOnLastUpdate = shouldDisplay;
+                }
+            }, null, { disposeWhenNodeIsRemoved: element });
+            return { 'controlsDescendantBindings': true };
+        }
+    };
+    ko.expressionRewriting.bindingRewriteValidators[bindingKey] = false; // Can't rewrite control flow bindings
+    ko.virtualElements.allowedBindings[bindingKey] = true;
+}
+
+// Construct the actual binding handlers
+makeWithIfBinding('if');
+makeWithIfBinding('ifnot', false /* isWith */, true /* isNot */);
+makeWithIfBinding('with', true /* isWith */, false /* isNot */,
+    function(bindingContext, dataValue) {
+        return bindingContext.createStaticChildContext(dataValue);
+    }
+);

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/options.js

@@ -0,0 +1,166 @@
+var captionPlaceholder = {};
+ko.bindingHandlers['options'] = {
+    'init': function(element) {
+        if (ko.utils.tagNameLower(element) !== "select")
+            throw new Error("options binding applies only to SELECT elements");
+
+        // Remove all existing <option>s.
+        while (element.length > 0) {
+            element.remove(0);
+        }
+
+        // Ensures that the binding processor doesn't try to bind the options
+        return { 'controlsDescendantBindings': true };
+    },
+    'update': function (element, valueAccessor, allBindings) {
+        function selectedOptions() {
+            return ko.utils.arrayFilter(element.options, function (node) { return node.selected; });
+        }
+
+        var selectWasPreviouslyEmpty = element.length == 0,
+            multiple = element.multiple,
+            previousScrollTop = (!selectWasPreviouslyEmpty && multiple) ? element.scrollTop : null,
+            unwrappedArray = ko.utils.unwrapObservable(valueAccessor()),
+            valueAllowUnset = allBindings.get('valueAllowUnset') && allBindings['has']('value'),
+            includeDestroyed = allBindings.get('optionsIncludeDestroyed'),
+            arrayToDomNodeChildrenOptions = {},
+            captionValue,
+            filteredArray,
+            previousSelectedValues = [];
+
+        if (!valueAllowUnset) {
+            if (multiple) {
+                previousSelectedValues = ko.utils.arrayMap(selectedOptions(), ko.selectExtensions.readValue);
+            } else if (element.selectedIndex >= 0) {
+                previousSelectedValues.push(ko.selectExtensions.readValue(element.options[element.selectedIndex]));
+            }
+        }
+
+        if (unwrappedArray) {
+            if (typeof unwrappedArray.length == "undefined") // Coerce single value into array
+                unwrappedArray = [unwrappedArray];
+
+            // Filter out any entries marked as destroyed
+            filteredArray = ko.utils.arrayFilter(unwrappedArray, function(item) {
+                return includeDestroyed || item === undefined || item === null || !ko.utils.unwrapObservable(item['_destroy']);
+            });
+
+            // If caption is included, add it to the array
+            if (allBindings['has']('optionsCaption')) {
+                captionValue = ko.utils.unwrapObservable(allBindings.get('optionsCaption'));
+                // If caption value is null or undefined, don't show a caption
+                if (captionValue !== null && captionValue !== undefined) {
+                    filteredArray.unshift(captionPlaceholder);
+                }
+            }
+        } else {
+            // If a falsy value is provided (e.g. null), we'll simply empty the select element
+        }
+
+        function applyToObject(object, predicate, defaultValue) {
+            var predicateType = typeof predicate;
+            if (predicateType == "function")    // Given a function; run it against the data value
+                return predicate(object);
+            else if (predicateType == "string") // Given a string; treat it as a property name on the data value
+                return object[predicate];
+            else                                // Given no optionsText arg; use the data value itself
+                return defaultValue;
+        }
+
+        // The following functions can run at two different times:
+        // The first is when the whole array is being updated directly from this binding handler.
+        // The second is when an observable value for a specific array entry is updated.
+        // oldOptions will be empty in the first case, but will be filled with the previously generated option in the second.
+        var itemUpdate = false;
+        function optionForArrayItem(arrayEntry, index, oldOptions) {
+            if (oldOptions.length) {
+                previousSelectedValues = !valueAllowUnset && oldOptions[0].selected ? [ ko.selectExtensions.readValue(oldOptions[0]) ] : [];
+                itemUpdate = true;
+            }
+            var option = element.ownerDocument.createElement("option");
+            if (arrayEntry === captionPlaceholder) {
+                ko.utils.setTextContent(option, allBindings.get('optionsCaption'));
+                ko.selectExtensions.writeValue(option, undefined);
+            } else {
+                // Apply a value to the option element
+                var optionValue = applyToObject(arrayEntry, allBindings.get('optionsValue'), arrayEntry);
+                ko.selectExtensions.writeValue(option, ko.utils.unwrapObservable(optionValue));
+
+                // Apply some text to the option element
+                var optionText = applyToObject(arrayEntry, allBindings.get('optionsText'), optionValue);
+                ko.utils.setTextContent(option, optionText);
+            }
+            return [option];
+        }
+
+        // By using a beforeRemove callback, we delay the removal until after new items are added. This fixes a selection
+        // problem in IE<=8 and Firefox. See https://github.com/knockout/knockout/issues/1208
+        arrayToDomNodeChildrenOptions['beforeRemove'] =
+            function (option) {
+                element.removeChild(option);
+            };
+
+        function setSelectionCallback(arrayEntry, newOptions) {
+            if (itemUpdate && valueAllowUnset) {
+                // The model value is authoritative, so make sure its value is the one selected
+                // There is no need to use dependencyDetection.ignore since setDomNodeChildrenFromArrayMapping does so already.
+                ko.selectExtensions.writeValue(element, ko.utils.unwrapObservable(allBindings.get('value')), true /* allowUnset */);
+            } else if (previousSelectedValues.length) {
+                // IE6 doesn't like us to assign selection to OPTION nodes before they're added to the document.
+                // That's why we first added them without selection. Now it's time to set the selection.
+                var isSelected = ko.utils.arrayIndexOf(previousSelectedValues, ko.selectExtensions.readValue(newOptions[0])) >= 0;
+                ko.utils.setOptionNodeSelectionState(newOptions[0], isSelected);
+
+                // If this option was changed from being selected during a single-item update, notify the change
+                if (itemUpdate && !isSelected) {
+                    ko.dependencyDetection.ignore(ko.utils.triggerEvent, null, [element, "change"]);
+                }
+            }
+        }
+
+        var callback = setSelectionCallback;
+        if (allBindings['has']('optionsAfterRender') && typeof allBindings.get('optionsAfterRender') == "function") {
+            callback = function(arrayEntry, newOptions) {
+                setSelectionCallback(arrayEntry, newOptions);
+                ko.dependencyDetection.ignore(allBindings.get('optionsAfterRender'), null, [newOptions[0], arrayEntry !== captionPlaceholder ? arrayEntry : undefined]);
+            }
+        }
+
+        ko.utils.setDomNodeChildrenFromArrayMapping(element, filteredArray, optionForArrayItem, arrayToDomNodeChildrenOptions, callback);
+
+        ko.dependencyDetection.ignore(function () {
+            if (valueAllowUnset) {
+                // The model value is authoritative, so make sure its value is the one selected
+                ko.selectExtensions.writeValue(element, ko.utils.unwrapObservable(allBindings.get('value')), true /* allowUnset */);
+            } else {
+                // Determine if the selection has changed as a result of updating the options list
+                var selectionChanged;
+                if (multiple) {
+                    // For a multiple-select box, compare the new selection count to the previous one
+                    // But if nothing was selected before, the selection can't have changed
+                    selectionChanged = previousSelectedValues.length && selectedOptions().length < previousSelectedValues.length;
+                } else {
+                    // For a single-select box, compare the current value to the previous value
+                    // But if nothing was selected before or nothing is selected now, just look for a change in selection
+                    selectionChanged = (previousSelectedValues.length && element.selectedIndex >= 0)
+                        ? (ko.selectExtensions.readValue(element.options[element.selectedIndex]) !== previousSelectedValues[0])
+                        : (previousSelectedValues.length || element.selectedIndex >= 0);
+                }
+
+                // Ensure consistency between model value and selected option.
+                // If the dropdown was changed so that selection is no longer the same,
+                // notify the value or selectedOptions binding.
+                if (selectionChanged) {
+                    ko.utils.triggerEvent(element, "change");
+                }
+            }
+        });
+
+        // Workaround for IE bug
+        ko.utils.ensureSelectElementIsRenderedCorrectly(element);
+
+        if (previousScrollTop && Math.abs(previousScrollTop - element.scrollTop) > 20)
+            element.scrollTop = previousScrollTop;
+    }
+};
+ko.bindingHandlers['options'].optionValueDomDataKey = ko.utils.domData.nextKey();

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/selectedOptions.js

@@ -0,0 +1,32 @@
+ko.bindingHandlers['selectedOptions'] = {
+    'after': ['options', 'foreach'],
+    'init': function (element, valueAccessor, allBindings) {
+        ko.utils.registerEventHandler(element, "change", function () {
+            var value = valueAccessor(), valueToWrite = [];
+            ko.utils.arrayForEach(element.getElementsByTagName("option"), function(node) {
+                if (node.selected)
+                    valueToWrite.push(ko.selectExtensions.readValue(node));
+            });
+            ko.expressionRewriting.writeValueToProperty(value, allBindings, 'selectedOptions', valueToWrite);
+        });
+    },
+    'update': function (element, valueAccessor) {
+        if (ko.utils.tagNameLower(element) != "select")
+            throw new Error("values binding applies only to SELECT elements");
+
+        var newValue = ko.utils.unwrapObservable(valueAccessor()),
+            previousScrollTop = element.scrollTop;
+
+        if (newValue && typeof newValue.length == "number") {
+            ko.utils.arrayForEach(element.getElementsByTagName("option"), function(node) {
+                var isSelected = ko.utils.arrayIndexOf(newValue, ko.selectExtensions.readValue(node)) >= 0;
+                if (node.selected != isSelected) {      // This check prevents flashing of the select element in IE
+                    ko.utils.setOptionNodeSelectionState(node, isSelected);
+                }
+            });
+        }
+
+        element.scrollTop = previousScrollTop;
+    }
+};
+ko.expressionRewriting.twoWayBindings['selectedOptions'] = true;

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/style.js

@@ -0,0 +1,15 @@
+ko.bindingHandlers['style'] = {
+    'update': function (element, valueAccessor) {
+        var value = ko.utils.unwrapObservable(valueAccessor() || {});
+        ko.utils.objectForEach(value, function(styleName, styleValue) {
+            styleValue = ko.utils.unwrapObservable(styleValue);
+
+            if (styleValue === null || styleValue === undefined || styleValue === false) {
+                // Empty string removes the value, whereas null/undefined have no effect
+                styleValue = "";
+            }
+
+            element.style[styleName] = styleValue;
+        });
+    }
+};

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/submit.js

@@ -0,0 +1,19 @@
+ko.bindingHandlers['submit'] = {
+    'init': function (element, valueAccessor, allBindings, viewModel, bindingContext) {
+        if (typeof valueAccessor() != "function")
+            throw new Error("The value for a submit binding must be a function");
+        ko.utils.registerEventHandler(element, "submit", function (event) {
+            var handlerReturnValue;
+            var value = valueAccessor();
+            try { handlerReturnValue = value.call(bindingContext['$data'], element); }
+            finally {
+                if (handlerReturnValue !== true) { // Normally we want to prevent default action. Developer can override this be explicitly returning true.
+                    if (event.preventDefault)
+                        event.preventDefault();
+                    else
+                        event.returnValue = false;
+                }
+            }
+        });
+    }
+};

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/text.js

@@ -0,0 +1,11 @@
+ko.bindingHandlers['text'] = {
+    'init': function() {
+        // Prevent binding on the dynamically-injected text node (as developers are unlikely to expect that, and it has security implications).
+        // It should also make things faster, as we no longer have to consider whether the text node might be bindable.
+        return { 'controlsDescendantBindings': true };
+    },
+    'update': function (element, valueAccessor) {
+        ko.utils.setTextContent(element, valueAccessor());
+    }
+};
+ko.virtualElements.allowedBindings['text'] = true;

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/textInput.js

@@ -0,0 +1,182 @@
+(function () {
+
+if (window && window.navigator) {
+    var parseVersion = function (matches) {
+        if (matches) {
+            return parseFloat(matches[1]);
+        }
+    };
+
+    // Detect various browser versions because some old versions don't fully support the 'input' event
+    var operaVersion = window.opera && window.opera.version && parseInt(window.opera.version()),
+        userAgent = window.navigator.userAgent,
+        safariVersion = parseVersion(userAgent.match(/^(?:(?!chrome).)*version\/([^ ]*) safari/i)),
+        firefoxVersion = parseVersion(userAgent.match(/Firefox\/([^ ]*)/));
+}
+
+// IE 8 and 9 have bugs that prevent the normal events from firing when the value changes.
+// But it does fire the 'selectionchange' event on many of those, presumably because the
+// cursor is moving and that counts as the selection changing. The 'selectionchange' event is
+// fired at the document level only and doesn't directly indicate which element changed. We
+// set up just one event handler for the document and use 'activeElement' to determine which
+// element was changed.
+if (ko.utils.ieVersion < 10) {
+    var selectionChangeRegisteredName = ko.utils.domData.nextKey(),
+        selectionChangeHandlerName = ko.utils.domData.nextKey();
+    var selectionChangeHandler = function(event) {
+        var target = this.activeElement,
+            handler = target && ko.utils.domData.get(target, selectionChangeHandlerName);
+        if (handler) {
+            handler(event);
+        }
+    };
+    var registerForSelectionChangeEvent = function (element, handler) {
+        var ownerDoc = element.ownerDocument;
+        if (!ko.utils.domData.get(ownerDoc, selectionChangeRegisteredName)) {
+            ko.utils.domData.set(ownerDoc, selectionChangeRegisteredName, true);
+            ko.utils.registerEventHandler(ownerDoc, 'selectionchange', selectionChangeHandler);
+        }
+        ko.utils.domData.set(element, selectionChangeHandlerName, handler);
+    };
+}
+
+ko.bindingHandlers['textInput'] = {
+    'init': function (element, valueAccessor, allBindings) {
+
+        var previousElementValue = element.value,
+            timeoutHandle,
+            elementValueBeforeEvent;
+
+        var updateModel = function (event) {
+            clearTimeout(timeoutHandle);
+            elementValueBeforeEvent = timeoutHandle = undefined;
+
+            var elementValue = element.value;
+            if (previousElementValue !== elementValue) {
+                // Provide a way for tests to know exactly which event was processed
+                if (DEBUG && event) element['_ko_textInputProcessedEvent'] = event.type;
+                previousElementValue = elementValue;
+                ko.expressionRewriting.writeValueToProperty(valueAccessor(), allBindings, 'textInput', elementValue);
+            }
+        };
+
+        var deferUpdateModel = function (event) {
+            if (!timeoutHandle) {
+                // The elementValueBeforeEvent variable is set *only* during the brief gap between an
+                // event firing and the updateModel function running. This allows us to ignore model
+                // updates that are from the previous state of the element, usually due to techniques
+                // such as rateLimit. Such updates, if not ignored, can cause keystrokes to be lost.
+                elementValueBeforeEvent = element.value;
+                var handler = DEBUG ? updateModel.bind(element, {type: event.type}) : updateModel;
+                timeoutHandle = ko.utils.setTimeout(handler, 4);
+            }
+        };
+
+        // IE9 will mess up the DOM if you handle events synchronously which results in DOM changes (such as other bindings);
+        // so we'll make sure all updates are asynchronous
+        var ieUpdateModel = ko.utils.ieVersion == 9 ? deferUpdateModel : updateModel;
+
+        var updateView = function () {
+            var modelValue = ko.utils.unwrapObservable(valueAccessor());
+
+            if (modelValue === null || modelValue === undefined) {
+                modelValue = '';
+            }
+
+            if (elementValueBeforeEvent !== undefined && modelValue === elementValueBeforeEvent) {
+                ko.utils.setTimeout(updateView, 4);
+                return;
+            }
+
+            // Update the element only if the element and model are different. On some browsers, updating the value
+            // will move the cursor to the end of the input, which would be bad while the user is typing.
+            if (element.value !== modelValue) {
+                previousElementValue = modelValue;  // Make sure we ignore events (propertychange) that result from updating the value
+                element.value = modelValue;
+            }
+        };
+
+        var onEvent = function (event, handler) {
+            ko.utils.registerEventHandler(element, event, handler);
+        };
+
+        if (DEBUG && ko.bindingHandlers['textInput']['_forceUpdateOn']) {
+            // Provide a way for tests to specify exactly which events are bound
+            ko.utils.arrayForEach(ko.bindingHandlers['textInput']['_forceUpdateOn'], function(eventName) {
+                if (eventName.slice(0,5) == 'after') {
+                    onEvent(eventName.slice(5), deferUpdateModel);
+                } else {
+                    onEvent(eventName, updateModel);
+                }
+            });
+        } else {
+            if (ko.utils.ieVersion < 10) {
+                // Internet Explorer <= 8 doesn't support the 'input' event, but does include 'propertychange' that fires whenever
+                // any property of an element changes. Unlike 'input', it also fires if a property is changed from JavaScript code,
+                // but that's an acceptable compromise for this binding. IE 9 does support 'input', but since it doesn't fire it
+                // when using autocomplete, we'll use 'propertychange' for it also.
+                onEvent('propertychange', function(event) {
+                    if (event.propertyName === 'value') {
+                        ieUpdateModel(event);
+                    }
+                });
+
+                if (ko.utils.ieVersion == 8) {
+                    // IE 8 has a bug where it fails to fire 'propertychange' on the first update following a value change from
+                    // JavaScript code. It also doesn't fire if you clear the entire value. To fix this, we bind to the following
+                    // events too.
+                    onEvent('keyup', updateModel);      // A single keystoke
+                    onEvent('keydown', updateModel);    // The first character when a key is held down
+                }
+                if (ko.utils.ieVersion >= 8) {
+                    // Internet Explorer 9 doesn't fire the 'input' event when deleting text, including using
+                    // the backspace, delete, or ctrl-x keys, clicking the 'x' to clear the input, dragging text
+                    // out of the field, and cutting or deleting text using the context menu. 'selectionchange'
+                    // can detect all of those except dragging text out of the field, for which we use 'dragend'.
+                    // These are also needed in IE8 because of the bug described above.
+                    registerForSelectionChangeEvent(element, ieUpdateModel);  // 'selectionchange' covers cut, paste, drop, delete, etc.
+                    onEvent('dragend', deferUpdateModel);
+                }
+            } else {
+                // All other supported browsers support the 'input' event, which fires whenever the content of the element is changed
+                // through the user interface.
+                onEvent('input', updateModel);
+
+                if (safariVersion < 5 && ko.utils.tagNameLower(element) === "textarea") {
+                    // Safari <5 doesn't fire the 'input' event for <textarea> elements (it does fire 'textInput'
+                    // but only when typing). So we'll just catch as much as we can with keydown, cut, and paste.
+                    onEvent('keydown', deferUpdateModel);
+                    onEvent('paste', deferUpdateModel);
+                    onEvent('cut', deferUpdateModel);
+                } else if (operaVersion < 11) {
+                    // Opera 10 doesn't always fire the 'input' event for cut, paste, undo & drop operations.
+                    // We can try to catch some of those using 'keydown'.
+                    onEvent('keydown', deferUpdateModel);
+                } else if (firefoxVersion < 4.0) {
+                    // Firefox <= 3.6 doesn't fire the 'input' event when text is filled in through autocomplete
+                    onEvent('DOMAutoComplete', updateModel);
+
+                    // Firefox <=3.5 doesn't fire the 'input' event when text is dropped into the input.
+                    onEvent('dragdrop', updateModel);       // <3.5
+                    onEvent('drop', updateModel);           // 3.5
+                }
+            }
+        }
+
+        // Bind to the change event so that we can catch programmatic updates of the value that fire this event.
+        onEvent('change', updateModel);
+
+        ko.computed(updateView, null, { disposeWhenNodeIsRemoved: element });
+    }
+};
+ko.expressionRewriting.twoWayBindings['textInput'] = true;
+
+// textinput is an alias for textInput
+ko.bindingHandlers['textinput'] = {
+    // preprocess is the only way to set up a full alias
+    'preprocess': function (value, name, addBinding) {
+        addBinding('textInput', value);
+    }
+};
+
+})();

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/uniqueName.js

@@ -0,0 +1,9 @@
+ko.bindingHandlers['uniqueName'] = {
+    'init': function (element, valueAccessor) {
+        if (valueAccessor()) {
+            var name = "ko_unique_" + (++ko.bindingHandlers['uniqueName'].currentIndex);
+            ko.utils.setElementName(element, name);
+        }
+    }
+};
+ko.bindingHandlers['uniqueName'].currentIndex = 0;

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/value.js

@@ -0,0 +1,106 @@
+ko.bindingHandlers['value'] = {
+    'after': ['options', 'foreach'],
+    'init': function (element, valueAccessor, allBindings) {
+        // If the value binding is placed on a radio/checkbox, then just pass through to checkedValue and quit
+        if (element.tagName.toLowerCase() == "input" && (element.type == "checkbox" || element.type == "radio")) {
+            ko.applyBindingAccessorsToNode(element, { 'checkedValue': valueAccessor });
+            return;
+        }
+
+        // Always catch "change" event; possibly other events too if asked
+        var eventsToCatch = ["change"];
+        var requestedEventsToCatch = allBindings.get("valueUpdate");
+        var propertyChangedFired = false;
+        var elementValueBeforeEvent = null;
+
+        if (requestedEventsToCatch) {
+            if (typeof requestedEventsToCatch == "string") // Allow both individual event names, and arrays of event names
+                requestedEventsToCatch = [requestedEventsToCatch];
+            ko.utils.arrayPushAll(eventsToCatch, requestedEventsToCatch);
+            eventsToCatch = ko.utils.arrayGetDistinctValues(eventsToCatch);
+        }
+
+        var valueUpdateHandler = function() {
+            elementValueBeforeEvent = null;
+            propertyChangedFired = false;
+            var modelValue = valueAccessor();
+            var elementValue = ko.selectExtensions.readValue(element);
+            ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'value', elementValue);
+        }
+
+        // Workaround for https://github.com/SteveSanderson/knockout/issues/122
+        // IE doesn't fire "change" events on textboxes if the user selects a value from its autocomplete list
+        var ieAutoCompleteHackNeeded = ko.utils.ieVersion && element.tagName.toLowerCase() == "input" && element.type == "text"
+                                       && element.autocomplete != "off" && (!element.form || element.form.autocomplete != "off");
+        if (ieAutoCompleteHackNeeded && ko.utils.arrayIndexOf(eventsToCatch, "propertychange") == -1) {
+            ko.utils.registerEventHandler(element, "propertychange", function () { propertyChangedFired = true });
+            ko.utils.registerEventHandler(element, "focus", function () { propertyChangedFired = false });
+            ko.utils.registerEventHandler(element, "blur", function() {
+                if (propertyChangedFired) {
+                    valueUpdateHandler();
+                }
+            });
+        }
+
+        ko.utils.arrayForEach(eventsToCatch, function(eventName) {
+            // The syntax "after<eventname>" means "run the handler asynchronously after the event"
+            // This is useful, for example, to catch "keydown" events after the browser has updated the control
+            // (otherwise, ko.selectExtensions.readValue(this) will receive the control's value *before* the key event)
+            var handler = valueUpdateHandler;
+            if (ko.utils.stringStartsWith(eventName, "after")) {
+                handler = function() {
+                    // The elementValueBeforeEvent variable is non-null *only* during the brief gap between
+                    // a keyX event firing and the valueUpdateHandler running, which is scheduled to happen
+                    // at the earliest asynchronous opportunity. We store this temporary information so that
+                    // if, between keyX and valueUpdateHandler, the underlying model value changes separately,
+                    // we can overwrite that model value change with the value the user just typed. Otherwise,
+                    // techniques like rateLimit can trigger model changes at critical moments that will
+                    // override the user's inputs, causing keystrokes to be lost.
+                    elementValueBeforeEvent = ko.selectExtensions.readValue(element);
+                    ko.utils.setTimeout(valueUpdateHandler, 0);
+                };
+                eventName = eventName.substring("after".length);
+            }
+            ko.utils.registerEventHandler(element, eventName, handler);
+        });
+
+        var updateFromModel = function () {
+            var newValue = ko.utils.unwrapObservable(valueAccessor());
+            var elementValue = ko.selectExtensions.readValue(element);
+
+            if (elementValueBeforeEvent !== null && newValue === elementValueBeforeEvent) {
+                ko.utils.setTimeout(updateFromModel, 0);
+                return;
+            }
+
+            var valueHasChanged = (newValue !== elementValue);
+
+            if (valueHasChanged) {
+                if (ko.utils.tagNameLower(element) === "select") {
+                    var allowUnset = allBindings.get('valueAllowUnset');
+                    var applyValueAction = function () {
+                        ko.selectExtensions.writeValue(element, newValue, allowUnset);
+                    };
+                    applyValueAction();
+
+                    if (!allowUnset && newValue !== ko.selectExtensions.readValue(element)) {
+                        // If you try to set a model value that can't be represented in an already-populated dropdown, reject that change,
+                        // because you're not allowed to have a model value that disagrees with a visible UI selection.
+                        ko.dependencyDetection.ignore(ko.utils.triggerEvent, null, [element, "change"]);
+                    } else {
+                        // Workaround for IE6 bug: It won't reliably apply values to SELECT nodes during the same execution thread
+                        // right after you've changed the set of OPTION nodes on it. So for that node type, we'll schedule a second thread
+                        // to apply the value as well.
+                        ko.utils.setTimeout(applyValueAction, 0);
+                    }
+                } else {
+                    ko.selectExtensions.writeValue(element, newValue);
+                }
+            }
+        };
+
+        ko.computed(updateFromModel, null, { disposeWhenNodeIsRemoved: element });
+    },
+    'update': function() {} // Keep for backwards compatibility with code that may have wrapped value binding
+};
+ko.expressionRewriting.twoWayBindings['value'] = true;

demo/filebrowser-durandal-widget/lib/knockout/src/binding/defaultBindings/visible.js

@@ -0,0 +1,10 @@
+ko.bindingHandlers['visible'] = {
+    'update': function (element, valueAccessor) {
+        var value = ko.utils.unwrapObservable(valueAccessor());
+        var isCurrentlyVisible = !(element.style.display == "none");
+        if (value && !isCurrentlyVisible)
+            element.style.display = "";
+        else if ((!value) && isCurrentlyVisible)
+            element.style.display = "none";
+    }
+};

demo/filebrowser-durandal-widget/lib/knockout/src/binding/editDetection/arrayToDomNodeChildren.js

@@ -0,0 +1,180 @@
+(function () {
+    // Objective:
+    // * Given an input array, a container DOM node, and a function from array elements to arrays of DOM nodes,
+    //   map the array elements to arrays of DOM nodes, concatenate together all these arrays, and use them to populate the container DOM node
+    // * Next time we're given the same combination of things (with the array possibly having mutated), update the container DOM node
+    //   so that its children is again the concatenation of the mappings of the array elements, but don't re-map any array elements that we
+    //   previously mapped - retain those nodes, and just insert/delete other ones
+
+    // "callbackAfterAddingNodes" will be invoked after any "mapping"-generated nodes are inserted into the container node
+    // You can use this, for example, to activate bindings on those nodes.
+
+    function mapNodeAndRefreshWhenChanged(containerNode, mapping, valueToMap, callbackAfterAddingNodes, index) {
+        // Map this array value inside a dependentObservable so we re-map when any dependency changes
+        var mappedNodes = [];
+        var dependentObservable = ko.dependentObservable(function() {
+            var newMappedNodes = mapping(valueToMap, index, ko.utils.fixUpContinuousNodeArray(mappedNodes, containerNode)) || [];
+
+            // On subsequent evaluations, just replace the previously-inserted DOM nodes
+            if (mappedNodes.length > 0) {
+                ko.utils.replaceDomNodes(mappedNodes, newMappedNodes);
+                if (callbackAfterAddingNodes)
+                    ko.dependencyDetection.ignore(callbackAfterAddingNodes, null, [valueToMap, newMappedNodes, index]);
+            }
+
+            // Replace the contents of the mappedNodes array, thereby updating the record
+            // of which nodes would be deleted if valueToMap was itself later removed
+            mappedNodes.length = 0;
+            ko.utils.arrayPushAll(mappedNodes, newMappedNodes);
+        }, null, { disposeWhenNodeIsRemoved: containerNode, disposeWhen: function() { return !ko.utils.anyDomNodeIsAttachedToDocument(mappedNodes); } });
+        return { mappedNodes : mappedNodes, dependentObservable : (dependentObservable.isActive() ? dependentObservable : undefined) };
+    }
+
+    var lastMappingResultDomDataKey = ko.utils.domData.nextKey(),
+        deletedItemDummyValue = ko.utils.domData.nextKey();
+
+    ko.utils.setDomNodeChildrenFromArrayMapping = function (domNode, array, mapping, options, callbackAfterAddingNodes) {
+        // Compare the provided array against the previous one
+        array = array || [];
+        options = options || {};
+        var isFirstExecution = ko.utils.domData.get(domNode, lastMappingResultDomDataKey) === undefined;
+        var lastMappingResult = ko.utils.domData.get(domNode, lastMappingResultDomDataKey) || [];
+        var lastArray = ko.utils.arrayMap(lastMappingResult, function (x) { return x.arrayEntry; });
+        var editScript = ko.utils.compareArrays(lastArray, array, options['dontLimitMoves']);
+
+        // Build the new mapping result
+        var newMappingResult = [];
+        var lastMappingResultIndex = 0;
+        var newMappingResultIndex = 0;
+
+        var nodesToDelete = [];
+        var itemsToProcess = [];
+        var itemsForBeforeRemoveCallbacks = [];
+        var itemsForMoveCallbacks = [];
+        var itemsForAfterAddCallbacks = [];
+        var mapData;
+
+        function itemMovedOrRetained(editScriptIndex, oldPosition) {
+            mapData = lastMappingResult[oldPosition];
+            if (newMappingResultIndex !== oldPosition)
+                itemsForMoveCallbacks[editScriptIndex] = mapData;
+            // Since updating the index might change the nodes, do so before calling fixUpContinuousNodeArray
+            mapData.indexObservable(newMappingResultIndex++);
+            ko.utils.fixUpContinuousNodeArray(mapData.mappedNodes, domNode);
+            newMappingResult.push(mapData);
+            itemsToProcess.push(mapData);
+        }
+
+        function callCallback(callback, items) {
+            if (callback) {
+                for (var i = 0, n = items.length; i < n; i++) {
+                    if (items[i]) {
+                        ko.utils.arrayForEach(items[i].mappedNodes, function(node) {
+                            callback(node, i, items[i].arrayEntry);
+                        });
+                    }
+                }
+            }
+        }
+
+        for (var i = 0, editScriptItem, movedIndex; editScriptItem = editScript[i]; i++) {
+            movedIndex = editScriptItem['moved'];
+            switch (editScriptItem['status']) {
+                case "deleted":
+                    if (movedIndex === undefined) {
+                        mapData = lastMappingResult[lastMappingResultIndex];
+
+                        // Stop tracking changes to the mapping for these nodes
+                        if (mapData.dependentObservable) {
+                            mapData.dependentObservable.dispose();
+                            mapData.dependentObservable = undefined;
+                        }
+
+                        // Queue these nodes for later removal
+                        if (ko.utils.fixUpContinuousNodeArray(mapData.mappedNodes, domNode).length) {
+                            if (options['beforeRemove']) {
+                                newMappingResult.push(mapData);
+                                itemsToProcess.push(mapData);
+                                if (mapData.arrayEntry === deletedItemDummyValue) {
+                                    mapData = null;
+                                } else {
+                                    itemsForBeforeRemoveCallbacks[i] = mapData;
+                                }
+                            }
+                            if (mapData) {
+                                nodesToDelete.push.apply(nodesToDelete, mapData.mappedNodes);
+                            }
+                        }
+                    }
+                    lastMappingResultIndex++;
+                    break;
+
+                case "retained":
+                    itemMovedOrRetained(i, lastMappingResultIndex++);
+                    break;
+
+                case "added":
+                    if (movedIndex !== undefined) {
+                        itemMovedOrRetained(i, movedIndex);
+                    } else {
+                        mapData = { arrayEntry: editScriptItem['value'], indexObservable: ko.observable(newMappingResultIndex++) };
+                        newMappingResult.push(mapData);
+                        itemsToProcess.push(mapData);
+                        if (!isFirstExecution)
+                            itemsForAfterAddCallbacks[i] = mapData;
+                    }
+                    break;
+            }
+        }
+
+        // Store a copy of the array items we just considered so we can difference it next time
+        ko.utils.domData.set(domNode, lastMappingResultDomDataKey, newMappingResult);
+
+        // Call beforeMove first before any changes have been made to the DOM
+        callCallback(options['beforeMove'], itemsForMoveCallbacks);
+
+        // Next remove nodes for deleted items (or just clean if there's a beforeRemove callback)
+        ko.utils.arrayForEach(nodesToDelete, options['beforeRemove'] ? ko.cleanNode : ko.removeNode);
+
+        // Next add/reorder the remaining items (will include deleted items if there's a beforeRemove callback)
+        for (var i = 0, nextNode = ko.virtualElements.firstChild(domNode), lastNode, node; mapData = itemsToProcess[i]; i++) {
+            // Get nodes for newly added items
+            if (!mapData.mappedNodes)
+                ko.utils.extend(mapData, mapNodeAndRefreshWhenChanged(domNode, mapping, mapData.arrayEntry, callbackAfterAddingNodes, mapData.indexObservable));
+
+            // Put nodes in the right place if they aren't there already
+            for (var j = 0; node = mapData.mappedNodes[j]; nextNode = node.nextSibling, lastNode = node, j++) {
+                if (node !== nextNode)
+                    ko.virtualElements.insertAfter(domNode, node, lastNode);
+            }
+
+            // Run the callbacks for newly added nodes (for example, to apply bindings, etc.)
+            if (!mapData.initialized && callbackAfterAddingNodes) {
+                callbackAfterAddingNodes(mapData.arrayEntry, mapData.mappedNodes, mapData.indexObservable);
+                mapData.initialized = true;
+            }
+        }
+
+        // If there's a beforeRemove callback, call it after reordering.
+        // Note that we assume that the beforeRemove callback will usually be used to remove the nodes using
+        // some sort of animation, which is why we first reorder the nodes that will be removed. If the
+        // callback instead removes the nodes right away, it would be more efficient to skip reordering them.
+        // Perhaps we'll make that change in the future if this scenario becomes more common.
+        callCallback(options['beforeRemove'], itemsForBeforeRemoveCallbacks);
+
+        // Replace the stored values of deleted items with a dummy value. This provides two benefits: it marks this item
+        // as already "removed" so we won't call beforeRemove for it again, and it ensures that the item won't match up
+        // with an actual item in the array and appear as "retained" or "moved".
+        for (i = 0; i < itemsForBeforeRemoveCallbacks.length; ++i) {
+            if (itemsForBeforeRemoveCallbacks[i]) {
+                itemsForBeforeRemoveCallbacks[i].arrayEntry = deletedItemDummyValue;
+            }
+        }
+
+        // Finally call afterMove and afterAdd callbacks
+        callCallback(options['afterMove'], itemsForMoveCallbacks);
+        callCallback(options['afterAdd'], itemsForAfterAddCallbacks);
+    }
+})();
+
+ko.exportSymbol('utils.setDomNodeChildrenFromArrayMapping', ko.utils.setDomNodeChildrenFromArrayMapping);

demo/filebrowser-durandal-widget/lib/knockout/src/binding/editDetection/compareArrays.js

@@ -0,0 +1,102 @@
+// Go through the items that have been added and deleted and try to find matches between them.
+ko.utils.findMovesInArrayComparison = function (left, right, limitFailedCompares) {
+    if (left.length && right.length) {
+        var failedCompares, l, r, leftItem, rightItem;
+        for (failedCompares = l = 0; (!limitFailedCompares || failedCompares < limitFailedCompares) && (leftItem = left[l]); ++l) {
+            for (r = 0; rightItem = right[r]; ++r) {
+                if (leftItem['value'] === rightItem['value']) {
+                    leftItem['moved'] = rightItem['index'];
+                    rightItem['moved'] = leftItem['index'];
+                    right.splice(r, 1);         // This item is marked as moved; so remove it from right list
+                    failedCompares = r = 0;     // Reset failed compares count because we're checking for consecutive failures
+                    break;
+                }
+            }
+            failedCompares += r;
+        }
+    }
+};
+
+ko.utils.compareArrays = (function () {
+    var statusNotInOld = 'added', statusNotInNew = 'deleted';
+
+    // Simple calculation based on Levenshtein distance.
+    function compareArrays(oldArray, newArray, options) {
+        // For backward compatibility, if the third arg is actually a bool, interpret
+        // it as the old parameter 'dontLimitMoves'. Newer code should use { dontLimitMoves: true }.
+        options = (typeof options === 'boolean') ? { 'dontLimitMoves': options } : (options || {});
+        oldArray = oldArray || [];
+        newArray = newArray || [];
+
+        if (oldArray.length < newArray.length)
+            return compareSmallArrayToBigArray(oldArray, newArray, statusNotInOld, statusNotInNew, options);
+        else
+            return compareSmallArrayToBigArray(newArray, oldArray, statusNotInNew, statusNotInOld, options);
+    }
+
+    function compareSmallArrayToBigArray(smlArray, bigArray, statusNotInSml, statusNotInBig, options) {
+        var myMin = Math.min,
+            myMax = Math.max,
+            editDistanceMatrix = [],
+            smlIndex, smlIndexMax = smlArray.length,
+            bigIndex, bigIndexMax = bigArray.length,
+            compareRange = (bigIndexMax - smlIndexMax) || 1,
+            maxDistance = smlIndexMax + bigIndexMax + 1,
+            thisRow, lastRow,
+            bigIndexMaxForRow, bigIndexMinForRow;
+
+        for (smlIndex = 0; smlIndex <= smlIndexMax; smlIndex++) {
+            lastRow = thisRow;
+            editDistanceMatrix.push(thisRow = []);
+            bigIndexMaxForRow = myMin(bigIndexMax, smlIndex + compareRange);
+            bigIndexMinForRow = myMax(0, smlIndex - 1);
+            for (bigIndex = bigIndexMinForRow; bigIndex <= bigIndexMaxForRow; bigIndex++) {
+                if (!bigIndex)
+                    thisRow[bigIndex] = smlIndex + 1;
+                else if (!smlIndex)  // Top row - transform empty array into new array via additions
+                    thisRow[bigIndex] = bigIndex + 1;
+                else if (smlArray[smlIndex - 1] === bigArray[bigIndex - 1])
+                    thisRow[bigIndex] = lastRow[bigIndex - 1];                  // copy value (no edit)
+                else {
+                    var northDistance = lastRow[bigIndex] || maxDistance;       // not in big (deletion)
+                    var westDistance = thisRow[bigIndex - 1] || maxDistance;    // not in small (addition)
+                    thisRow[bigIndex] = myMin(northDistance, westDistance) + 1;
+                }
+            }
+        }
+
+        var editScript = [], meMinusOne, notInSml = [], notInBig = [];
+        for (smlIndex = smlIndexMax, bigIndex = bigIndexMax; smlIndex || bigIndex;) {
+            meMinusOne = editDistanceMatrix[smlIndex][bigIndex] - 1;
+            if (bigIndex && meMinusOne === editDistanceMatrix[smlIndex][bigIndex-1]) {
+                notInSml.push(editScript[editScript.length] = {     // added
+                    'status': statusNotInSml,
+                    'value': bigArray[--bigIndex],
+                    'index': bigIndex });
+            } else if (smlIndex && meMinusOne === editDistanceMatrix[smlIndex - 1][bigIndex]) {
+                notInBig.push(editScript[editScript.length] = {     // deleted
+                    'status': statusNotInBig,
+                    'value': smlArray[--smlIndex],
+                    'index': smlIndex });
+            } else {
+                --bigIndex;
+                --smlIndex;
+                if (!options['sparse']) {
+                    editScript.push({
+                        'status': "retained",
+                        'value': bigArray[bigIndex] });
+                }
+            }
+        }
+
+        // Set a limit on the number of consecutive non-matching comparisons; having it a multiple of
+        // smlIndexMax keeps the time complexity of this algorithm linear.
+        ko.utils.findMovesInArrayComparison(notInBig, notInSml, !options['dontLimitMoves'] && smlIndexMax * 10);
+
+        return editScript.reverse();
+    }
+
+    return compareArrays;
+})();
+
+ko.exportSymbol('utils.compareArrays', ko.utils.compareArrays);

demo/filebrowser-durandal-widget/lib/knockout/src/binding/expressionRewriting.js

@@ -0,0 +1,200 @@
+ko.expressionRewriting = (function () {
+    var javaScriptReservedWords = ["true", "false", "null", "undefined"];
+
+    // Matches something that can be assigned to--either an isolated identifier or something ending with a property accessor
+    // This is designed to be simple and avoid false negatives, but could produce false positives (e.g., a+b.c).
+    // This also will not properly handle nested brackets (e.g., obj1[obj2['prop']]; see #911).
+    var javaScriptAssignmentTarget = /^(?:[$_a-z][$\w]*|(.+)(\.\s*[$_a-z][$\w]*|\[.+\]))$/i;
+
+    function getWriteableValue(expression) {
+        if (ko.utils.arrayIndexOf(javaScriptReservedWords, expression) >= 0)
+            return false;
+        var match = expression.match(javaScriptAssignmentTarget);
+        return match === null ? false : match[1] ? ('Object(' + match[1] + ')' + match[2]) : expression;
+    }
+
+    // The following regular expressions will be used to split an object-literal string into tokens
+
+        // These two match strings, either with double quotes or single quotes
+    var stringDouble = '"(?:[^"\\\\]|\\\\.)*"',
+        stringSingle = "'(?:[^'\\\\]|\\\\.)*'",
+        // Matches a regular expression (text enclosed by slashes), but will also match sets of divisions
+        // as a regular expression (this is handled by the parsing loop below).
+        stringRegexp = '/(?:[^/\\\\]|\\\\.)*/\w*',
+        // These characters have special meaning to the parser and must not appear in the middle of a
+        // token, except as part of a string.
+        specials = ',"\'{}()/:[\\]',
+        // Match text (at least two characters) that does not contain any of the above special characters,
+        // although some of the special characters are allowed to start it (all but the colon and comma).
+        // The text can contain spaces, but leading or trailing spaces are skipped.
+        everyThingElse = '[^\\s:,/][^' + specials + ']*[^\\s' + specials + ']',
+        // Match any non-space character not matched already. This will match colons and commas, since they're
+        // not matched by "everyThingElse", but will also match any other single character that wasn't already
+        // matched (for example: in "a: 1, b: 2", each of the non-space characters will be matched by oneNotSpace).
+        oneNotSpace = '[^\\s]',
+
+        // Create the actual regular expression by or-ing the above strings. The order is important.
+        bindingToken = RegExp(stringDouble + '|' + stringSingle + '|' + stringRegexp + '|' + everyThingElse + '|' + oneNotSpace, 'g'),
+
+        // Match end of previous token to determine whether a slash is a division or regex.
+        divisionLookBehind = /[\])"'A-Za-z0-9_$]+$/,
+        keywordRegexLookBehind = {'in':1,'return':1,'typeof':1};
+
+    function parseObjectLiteral(objectLiteralString) {
+        // Trim leading and trailing spaces from the string
+        var str = ko.utils.stringTrim(objectLiteralString);
+
+        // Trim braces '{' surrounding the whole object literal
+        if (str.charCodeAt(0) === 123) str = str.slice(1, -1);
+
+        // Split into tokens
+        var result = [], toks = str.match(bindingToken), key, values = [], depth = 0;
+
+        if (toks) {
+            // Append a comma so that we don't need a separate code block to deal with the last item
+            toks.push(',');
+
+            for (var i = 0, tok; tok = toks[i]; ++i) {
+                var c = tok.charCodeAt(0);
+                // A comma signals the end of a key/value pair if depth is zero
+                if (c === 44) { // ","
+                    if (depth <= 0) {
+                        result.push((key && values.length) ? {key: key, value: values.join('')} : {'unknown': key || values.join('')});
+                        key = depth = 0;
+                        values = [];
+                        continue;
+                    }
+                // Simply skip the colon that separates the name and value
+                } else if (c === 58) { // ":"
+                    if (!depth && !key && values.length === 1) {
+                        key = values.pop();
+                        continue;
+                    }
+                // A set of slashes is initially matched as a regular expression, but could be division
+                } else if (c === 47 && i && tok.length > 1) {  // "/"
+                    // Look at the end of the previous token to determine if the slash is actually division
+                    var match = toks[i-1].match(divisionLookBehind);
+                    if (match && !keywordRegexLookBehind[match[0]]) {
+                        // The slash is actually a division punctuator; re-parse the remainder of the string (not including the slash)
+                        str = str.substr(str.indexOf(tok) + 1);
+                        toks = str.match(bindingToken);
+                        toks.push(',');
+                        i = -1;
+                        // Continue with just the slash
+                        tok = '/';
+                    }
+                // Increment depth for parentheses, braces, and brackets so that interior commas are ignored
+                } else if (c === 40 || c === 123 || c === 91) { // '(', '{', '['
+                    ++depth;
+                } else if (c === 41 || c === 125 || c === 93) { // ')', '}', ']'
+                    --depth;
+                // The key will be the first token; if it's a string, trim the quotes
+                } else if (!key && !values.length && (c === 34 || c === 39)) { // '"', "'"
+                    tok = tok.slice(1, -1);
+                }
+                values.push(tok);
+            }
+        }
+        return result;
+    }
+
+    // Two-way bindings include a write function that allow the handler to update the value even if it's not an observable.
+    var twoWayBindings = {};
+
+    function preProcessBindings(bindingsStringOrKeyValueArray, bindingOptions) {
+        bindingOptions = bindingOptions || {};
+
+        function processKeyValue(key, val) {
+            var writableVal;
+            function callPreprocessHook(obj) {
+                return (obj && obj['preprocess']) ? (val = obj['preprocess'](val, key, processKeyValue)) : true;
+            }
+            if (!bindingParams) {
+                if (!callPreprocessHook(ko['getBindingHandler'](key)))
+                    return;
+
+                if (twoWayBindings[key] && (writableVal = getWriteableValue(val))) {
+                    // For two-way bindings, provide a write method in case the value
+                    // isn't a writable observable.
+                    propertyAccessorResultStrings.push("'" + key + "':function(_z){" + writableVal + "=_z}");
+                }
+            }
+            // Values are wrapped in a function so that each value can be accessed independently
+            if (makeValueAccessors) {
+                val = 'function(){return ' + val + ' }';
+            }
+            resultStrings.push("'" + key + "':" + val);
+        }
+
+        var resultStrings = [],
+            propertyAccessorResultStrings = [],
+            makeValueAccessors = bindingOptions['valueAccessors'],
+            bindingParams = bindingOptions['bindingParams'],
+            keyValueArray = typeof bindingsStringOrKeyValueArray === "string" ?
+                parseObjectLiteral(bindingsStringOrKeyValueArray) : bindingsStringOrKeyValueArray;
+
+        ko.utils.arrayForEach(keyValueArray, function(keyValue) {
+            processKeyValue(keyValue.key || keyValue['unknown'], keyValue.value);
+        });
+
+        if (propertyAccessorResultStrings.length)
+            processKeyValue('_ko_property_writers', "{" + propertyAccessorResultStrings.join(",") + " }");
+
+        return resultStrings.join(",");
+    }
+
+    return {
+        bindingRewriteValidators: [],
+
+        twoWayBindings: twoWayBindings,
+
+        parseObjectLiteral: parseObjectLiteral,
+
+        preProcessBindings: preProcessBindings,
+
+        keyValueArrayContainsKey: function(keyValueArray, key) {
+            for (var i = 0; i < keyValueArray.length; i++)
+                if (keyValueArray[i]['key'] == key)
+                    return true;
+            return false;
+        },
+
+        // Internal, private KO utility for updating model properties from within bindings
+        // property:            If the property being updated is (or might be) an observable, pass it here
+        //                      If it turns out to be a writable observable, it will be written to directly
+        // allBindings:         An object with a get method to retrieve bindings in the current execution context.
+        //                      This will be searched for a '_ko_property_writers' property in case you're writing to a non-observable
+        // key:                 The key identifying the property to be written. Example: for { hasFocus: myValue }, write to 'myValue' by specifying the key 'hasFocus'
+        // value:               The value to be written
+        // checkIfDifferent:    If true, and if the property being written is a writable observable, the value will only be written if
+        //                      it is !== existing value on that writable observable
+        writeValueToProperty: function(property, allBindings, key, value, checkIfDifferent) {
+            if (!property || !ko.isObservable(property)) {
+                var propWriters = allBindings.get('_ko_property_writers');
+                if (propWriters && propWriters[key])
+                    propWriters[key](value);
+            } else if (ko.isWriteableObservable(property) && (!checkIfDifferent || property.peek() !== value)) {
+                property(value);
+            }
+        }
+    };
+})();
+
+ko.exportSymbol('expressionRewriting', ko.expressionRewriting);
+ko.exportSymbol('expressionRewriting.bindingRewriteValidators', ko.expressionRewriting.bindingRewriteValidators);
+ko.exportSymbol('expressionRewriting.parseObjectLiteral', ko.expressionRewriting.parseObjectLiteral);
+ko.exportSymbol('expressionRewriting.preProcessBindings', ko.expressionRewriting.preProcessBindings);
+
+// Making bindings explicitly declare themselves as "two way" isn't ideal in the long term (it would be better if
+// all bindings could use an official 'property writer' API without needing to declare that they might). However,
+// since this is not, and has never been, a public API (_ko_property_writers was never documented), it's acceptable
+// as an internal implementation detail in the short term.
+// For those developers who rely on _ko_property_writers in their custom bindings, we expose _twoWayBindings as an
+// undocumented feature that makes it relatively easy to upgrade to KO 3.0. However, this is still not an official
+// public API, and we reserve the right to remove it at any time if we create a real public property writers API.
+ko.exportSymbol('expressionRewriting._twoWayBindings', ko.expressionRewriting.twoWayBindings);
+
+// For backward compatibility, define the following aliases. (Previously, these function names were misleading because
+// they referred to JSON specifically, even though they actually work with arbitrary JavaScript object literal expressions.)
+ko.exportSymbol('jsonExpressionRewriting', ko.expressionRewriting);
+ko.exportSymbol('jsonExpressionRewriting.insertPropertyAccessorsIntoJson', ko.expressionRewriting.preProcessBindings);

demo/filebrowser-durandal-widget/lib/knockout/src/binding/selectExtensions.js

@@ -0,0 +1,72 @@
+(function () {
+    var hasDomDataExpandoProperty = '__ko__hasDomDataOptionValue__';
+
+    // Normally, SELECT elements and their OPTIONs can only take value of type 'string' (because the values
+    // are stored on DOM attributes). ko.selectExtensions provides a way for SELECTs/OPTIONs to have values
+    // that are arbitrary objects. This is very convenient when implementing things like cascading dropdowns.
+    ko.selectExtensions = {
+        readValue : function(element) {
+            switch (ko.utils.tagNameLower(element)) {
+                case 'option':
+                    if (element[hasDomDataExpandoProperty] === true)
+                        return ko.utils.domData.get(element, ko.bindingHandlers.options.optionValueDomDataKey);
+                    return ko.utils.ieVersion <= 7
+                        ? (element.getAttributeNode('value') && element.getAttributeNode('value').specified ? element.value : element.text)
+                        : element.value;
+                case 'select':
+                    return element.selectedIndex >= 0 ? ko.selectExtensions.readValue(element.options[element.selectedIndex]) : undefined;
+                default:
+                    return element.value;
+            }
+        },
+
+        writeValue: function(element, value, allowUnset) {
+            switch (ko.utils.tagNameLower(element)) {
+                case 'option':
+                    switch(typeof value) {
+                        case "string":
+                            ko.utils.domData.set(element, ko.bindingHandlers.options.optionValueDomDataKey, undefined);
+                            if (hasDomDataExpandoProperty in element) { // IE <= 8 throws errors if you delete non-existent properties from a DOM node
+                                delete element[hasDomDataExpandoProperty];
+                            }
+                            element.value = value;
+                            break;
+                        default:
+                            // Store arbitrary object using DomData
+                            ko.utils.domData.set(element, ko.bindingHandlers.options.optionValueDomDataKey, value);
+                            element[hasDomDataExpandoProperty] = true;
+
+                            // Special treatment of numbers is just for backward compatibility. KO 1.2.1 wrote numerical values to element.value.
+                            element.value = typeof value === "number" ? value : "";
+                            break;
+                    }
+                    break;
+                case 'select':
+                    if (value === "" || value === null)       // A blank string or null value will select the caption
+                        value = undefined;
+                    var selection = -1;
+                    for (var i = 0, n = element.options.length, optionValue; i < n; ++i) {
+                        optionValue = ko.selectExtensions.readValue(element.options[i]);
+                        // Include special check to handle selecting a caption with a blank string value
+                        if (optionValue == value || (optionValue == "" && value === undefined)) {
+                            selection = i;
+                            break;
+                        }
+                    }
+                    if (allowUnset || selection >= 0 || (value === undefined && element.size > 1)) {
+                        element.selectedIndex = selection;
+                    }
+                    break;
+                default:
+                    if ((value === null) || (value === undefined))
+                        value = "";
+                    element.value = value;
+                    break;
+            }
+        }
+    };
+})();
+
+ko.exportSymbol('selectExtensions', ko.selectExtensions);
+ko.exportSymbol('selectExtensions.readValue', ko.selectExtensions.readValue);
+ko.exportSymbol('selectExtensions.writeValue', ko.selectExtensions.writeValue);

demo/filebrowser-durandal-widget/lib/knockout/src/components/componentBinding.js

@@ -0,0 +1,85 @@
+(function(undefined) {
+
+    var componentLoadingOperationUniqueId = 0;
+
+    ko.bindingHandlers['component'] = {
+        'init': function(element, valueAccessor, ignored1, ignored2, bindingContext) {
+            var currentViewModel,
+                currentLoadingOperationId,
+                disposeAssociatedComponentViewModel = function () {
+                    var currentViewModelDispose = currentViewModel && currentViewModel['dispose'];
+                    if (typeof currentViewModelDispose === 'function') {
+                        currentViewModelDispose.call(currentViewModel);
+                    }
+                    currentViewModel = null;
+                    // Any in-flight loading operation is no longer relevant, so make sure we ignore its completion
+                    currentLoadingOperationId = null;
+                },
+                originalChildNodes = ko.utils.makeArray(ko.virtualElements.childNodes(element));
+
+            ko.utils.domNodeDisposal.addDisposeCallback(element, disposeAssociatedComponentViewModel);
+
+            ko.computed(function () {
+                var value = ko.utils.unwrapObservable(valueAccessor()),
+                    componentName, componentParams;
+
+                if (typeof value === 'string') {
+                    componentName = value;
+                } else {
+                    componentName = ko.utils.unwrapObservable(value['name']);
+                    componentParams = ko.utils.unwrapObservable(value['params']);
+                }
+
+                if (!componentName) {
+                    throw new Error('No component name specified');
+                }
+
+                var loadingOperationId = currentLoadingOperationId = ++componentLoadingOperationUniqueId;
+                ko.components.get(componentName, function(componentDefinition) {
+                    // If this is not the current load operation for this element, ignore it.
+                    if (currentLoadingOperationId !== loadingOperationId) {
+                        return;
+                    }
+
+                    // Clean up previous state
+                    disposeAssociatedComponentViewModel();
+
+                    // Instantiate and bind new component. Implicitly this cleans any old DOM nodes.
+                    if (!componentDefinition) {
+                        throw new Error('Unknown component \'' + componentName + '\'');
+                    }
+                    cloneTemplateIntoElement(componentName, componentDefinition, element);
+                    var componentViewModel = createViewModel(componentDefinition, element, originalChildNodes, componentParams),
+                        childBindingContext = bindingContext['createChildContext'](componentViewModel, /* dataItemAlias */ undefined, function(ctx) {
+                            ctx['$component'] = componentViewModel;
+                            ctx['$componentTemplateNodes'] = originalChildNodes;
+                        });
+                    currentViewModel = componentViewModel;
+                    ko.applyBindingsToDescendants(childBindingContext, element);
+                });
+            }, null, { disposeWhenNodeIsRemoved: element });
+
+            return { 'controlsDescendantBindings': true };
+        }
+    };
+
+    ko.virtualElements.allowedBindings['component'] = true;
+
+    function cloneTemplateIntoElement(componentName, componentDefinition, element) {
+        var template = componentDefinition['template'];
+        if (!template) {
+            throw new Error('Component \'' + componentName + '\' has no template');
+        }
+
+        var clonedNodesArray = ko.utils.cloneNodes(template);
+        ko.virtualElements.setDomNodeChildren(element, clonedNodesArray);
+    }
+
+    function createViewModel(componentDefinition, element, originalChildNodes, componentParams) {
+        var componentViewModelFactory = componentDefinition['createViewModel'];
+        return componentViewModelFactory
+            ? componentViewModelFactory.call(componentDefinition, componentParams, { 'element': element, 'templateNodes': originalChildNodes })
+            : componentParams; // Template-only component
+    }
+
+})();

demo/filebrowser-durandal-widget/lib/knockout/src/components/customElements.js

@@ -0,0 +1,115 @@
+(function (undefined) {
+    // Overridable API for determining which component name applies to a given node. By overriding this,
+    // you can for example map specific tagNames to components that are not preregistered.
+    ko.components['getComponentNameForNode'] = function(node) {
+        var tagNameLower = ko.utils.tagNameLower(node);
+        if (ko.components.isRegistered(tagNameLower)) {
+            // Try to determine that this node can be considered a *custom* element; see https://github.com/knockout/knockout/issues/1603
+            if (tagNameLower.indexOf('-') != -1 || ('' + node) == "[object HTMLUnknownElement]" || (ko.utils.ieVersion <= 8 && node.tagName === tagNameLower)) {
+                return tagNameLower;
+            }
+        }
+    };
+
+    ko.components.addBindingsForCustomElement = function(allBindings, node, bindingContext, valueAccessors) {
+        // Determine if it's really a custom element matching a component
+        if (node.nodeType === 1) {
+            var componentName = ko.components['getComponentNameForNode'](node);
+            if (componentName) {
+                // It does represent a component, so add a component binding for it
+                allBindings = allBindings || {};
+
+                if (allBindings['component']) {
+                    // Avoid silently overwriting some other 'component' binding that may already be on the element
+                    throw new Error('Cannot use the "component" binding on a custom element matching a component');
+                }
+
+                var componentBindingValue = { 'name': componentName, 'params': getComponentParamsFromCustomElement(node, bindingContext) };
+
+                allBindings['component'] = valueAccessors
+                    ? function() { return componentBindingValue; }
+                    : componentBindingValue;
+            }
+        }
+
+        return allBindings;
+    }
+
+    var nativeBindingProviderInstance = new ko.bindingProvider();
+
+    function getComponentParamsFromCustomElement(elem, bindingContext) {
+        var paramsAttribute = elem.getAttribute('params');
+
+        if (paramsAttribute) {
+            var params = nativeBindingProviderInstance['parseBindingsString'](paramsAttribute, bindingContext, elem, { 'valueAccessors': true, 'bindingParams': true }),
+                rawParamComputedValues = ko.utils.objectMap(params, function(paramValue, paramName) {
+                    return ko.computed(paramValue, null, { disposeWhenNodeIsRemoved: elem });
+                }),
+                result = ko.utils.objectMap(rawParamComputedValues, function(paramValueComputed, paramName) {
+                    var paramValue = paramValueComputed.peek();
+                    // Does the evaluation of the parameter value unwrap any observables?
+                    if (!paramValueComputed.isActive()) {
+                        // No it doesn't, so there's no need for any computed wrapper. Just pass through the supplied value directly.
+                        // Example: "someVal: firstName, age: 123" (whether or not firstName is an observable/computed)
+                        return paramValue;
+                    } else {
+                        // Yes it does. Supply a computed property that unwraps both the outer (binding expression)
+                        // level of observability, and any inner (resulting model value) level of observability.
+                        // This means the component doesn't have to worry about multiple unwrapping. If the value is a
+                        // writable observable, the computed will also be writable and pass the value on to the observable.
+                        return ko.computed({
+                            'read': function() {
+                                return ko.utils.unwrapObservable(paramValueComputed());
+                            },
+                            'write': ko.isWriteableObservable(paramValue) && function(value) {
+                                paramValueComputed()(value);
+                            },
+                            disposeWhenNodeIsRemoved: elem
+                        });
+                    }
+                });
+
+            // Give access to the raw computeds, as long as that wouldn't overwrite any custom param also called '$raw'
+            // This is in case the developer wants to react to outer (binding) observability separately from inner
+            // (model value) observability, or in case the model value observable has subobservables.
+            if (!result.hasOwnProperty('$raw')) {
+                result['$raw'] = rawParamComputedValues;
+            }
+
+            return result;
+        } else {
+            // For consistency, absence of a "params" attribute is treated the same as the presence of
+            // any empty one. Otherwise component viewmodels need special code to check whether or not
+            // 'params' or 'params.$raw' is null/undefined before reading subproperties, which is annoying.
+            return { '$raw': {} };
+        }
+    }
+
+    // --------------------------------------------------------------------------------
+    // Compatibility code for older (pre-HTML5) IE browsers
+
+    if (ko.utils.ieVersion < 9) {
+        // Whenever you preregister a component, enable it as a custom element in the current document
+        ko.components['register'] = (function(originalFunction) {
+            return function(componentName) {
+                document.createElement(componentName); // Allows IE<9 to parse markup containing the custom element
+                return originalFunction.apply(this, arguments);
+            }
+        })(ko.components['register']);
+
+        // Whenever you create a document fragment, enable all preregistered component names as custom elements
+        // This is needed to make innerShiv/jQuery HTML parsing correctly handle the custom elements
+        document.createDocumentFragment = (function(originalFunction) {
+            return function() {
+                var newDocFrag = originalFunction(),
+                    allComponents = ko.components._allRegisteredComponents;
+                for (var componentName in allComponents) {
+                    if (allComponents.hasOwnProperty(componentName)) {
+                        newDocFrag.createElement(componentName);
+                    }
+                }
+                return newDocFrag;
+            };
+        })(document.createDocumentFragment);
+    }
+})();

demo/filebrowser-durandal-widget/lib/knockout/src/components/defaultLoader.js

@@ -0,0 +1,226 @@
+(function(undefined) {
+
+    // The default loader is responsible for two things:
+    // 1. Maintaining the default in-memory registry of component configuration objects
+    //    (i.e., the thing you're writing to when you call ko.components.register(someName, ...))
+    // 2. Answering requests for components by fetching configuration objects
+    //    from that default in-memory registry and resolving them into standard
+    //    component definition objects (of the form { createViewModel: ..., template: ... })
+    // Custom loaders may override either of these facilities, i.e.,
+    // 1. To supply configuration objects from some other source (e.g., conventions)
+    // 2. Or, to resolve configuration objects by loading viewmodels/templates via arbitrary logic.
+
+    var defaultConfigRegistry = {};
+
+    ko.components.register = function(componentName, config) {
+        if (!config) {
+            throw new Error('Invalid configuration for ' + componentName);
+        }
+
+        if (ko.components.isRegistered(componentName)) {
+            throw new Error('Component ' + componentName + ' is already registered');
+        }
+
+        defaultConfigRegistry[componentName] = config;
+    };
+
+    ko.components.isRegistered = function(componentName) {
+        return defaultConfigRegistry.hasOwnProperty(componentName);
+    };
+
+    ko.components.unregister = function(componentName) {
+        delete defaultConfigRegistry[componentName];
+        ko.components.clearCachedDefinition(componentName);
+    };
+
+    ko.components.defaultLoader = {
+        'getConfig': function(componentName, callback) {
+            var result = defaultConfigRegistry.hasOwnProperty(componentName)
+                ? defaultConfigRegistry[componentName]
+                : null;
+            callback(result);
+        },
+
+        'loadComponent': function(componentName, config, callback) {
+            var errorCallback = makeErrorCallback(componentName);
+            possiblyGetConfigFromAmd(errorCallback, config, function(loadedConfig) {
+                resolveConfig(componentName, errorCallback, loadedConfig, callback);
+            });
+        },
+
+        'loadTemplate': function(componentName, templateConfig, callback) {
+            resolveTemplate(makeErrorCallback(componentName), templateConfig, callback);
+        },
+
+        'loadViewModel': function(componentName, viewModelConfig, callback) {
+            resolveViewModel(makeErrorCallback(componentName), viewModelConfig, callback);
+        }
+    };
+
+    var createViewModelKey = 'createViewModel';
+
+    // Takes a config object of the form { template: ..., viewModel: ... }, and asynchronously convert it
+    // into the standard component definition format:
+    //    { template: <ArrayOfDomNodes>, createViewModel: function(params, componentInfo) { ... } }.
+    // Since both template and viewModel may need to be resolved asynchronously, both tasks are performed
+    // in parallel, and the results joined when both are ready. We don't depend on any promises infrastructure,
+    // so this is implemented manually below.
+    function resolveConfig(componentName, errorCallback, config, callback) {
+        var result = {},
+            makeCallBackWhenZero = 2,
+            tryIssueCallback = function() {
+                if (--makeCallBackWhenZero === 0) {
+                    callback(result);
+                }
+            },
+            templateConfig = config['template'],
+            viewModelConfig = config['viewModel'];
+
+        if (templateConfig) {
+            possiblyGetConfigFromAmd(errorCallback, templateConfig, function(loadedConfig) {
+                ko.components._getFirstResultFromLoaders('loadTemplate', [componentName, loadedConfig], function(resolvedTemplate) {
+                    result['template'] = resolvedTemplate;
+                    tryIssueCallback();
+                });
+            });
+        } else {
+            tryIssueCallback();
+        }
+
+        if (viewModelConfig) {
+            possiblyGetConfigFromAmd(errorCallback, viewModelConfig, function(loadedConfig) {
+                ko.components._getFirstResultFromLoaders('loadViewModel', [componentName, loadedConfig], function(resolvedViewModel) {
+                    result[createViewModelKey] = resolvedViewModel;
+                    tryIssueCallback();
+                });
+            });
+        } else {
+            tryIssueCallback();
+        }
+    }
+
+    function resolveTemplate(errorCallback, templateConfig, callback) {
+        if (typeof templateConfig === 'string') {
+            // Markup - parse it
+            callback(ko.utils.parseHtmlFragment(templateConfig));
+        } else if (templateConfig instanceof Array) {
+            // Assume already an array of DOM nodes - pass through unchanged
+            callback(templateConfig);
+        } else if (isDocumentFragment(templateConfig)) {
+            // Document fragment - use its child nodes
+            callback(ko.utils.makeArray(templateConfig.childNodes));
+        } else if (templateConfig['element']) {
+            var element = templateConfig['element'];
+            if (isDomElement(element)) {
+                // Element instance - copy its child nodes
+                callback(cloneNodesFromTemplateSourceElement(element));
+            } else if (typeof element === 'string') {
+                // Element ID - find it, then copy its child nodes
+                var elemInstance = document.getElementById(element);
+                if (elemInstance) {
+                    callback(cloneNodesFromTemplateSourceElement(elemInstance));
+                } else {
+                    errorCallback('Cannot find element with ID ' + element);
+                }
+            } else {
+                errorCallback('Unknown element type: ' + element);
+            }
+        } else {
+            errorCallback('Unknown template value: ' + templateConfig);
+        }
+    }
+
+    function resolveViewModel(errorCallback, viewModelConfig, callback) {
+        if (typeof viewModelConfig === 'function') {
+            // Constructor - convert to standard factory function format
+            // By design, this does *not* supply componentInfo to the constructor, as the intent is that
+            // componentInfo contains non-viewmodel data (e.g., the component's element) that should only
+            // be used in factory functions, not viewmodel constructors.
+            callback(function (params /*, componentInfo */) {
+                return new viewModelConfig(params);
+            });
+        } else if (typeof viewModelConfig[createViewModelKey] === 'function') {
+            // Already a factory function - use it as-is
+            callback(viewModelConfig[createViewModelKey]);
+        } else if ('instance' in viewModelConfig) {
+            // Fixed object instance - promote to createViewModel format for API consistency
+            var fixedInstance = viewModelConfig['instance'];
+            callback(function (params, componentInfo) {
+                return fixedInstance;
+            });
+        } else if ('viewModel' in viewModelConfig) {
+            // Resolved AMD module whose value is of the form { viewModel: ... }
+            resolveViewModel(errorCallback, viewModelConfig['viewModel'], callback);
+        } else {
+            errorCallback('Unknown viewModel value: ' + viewModelConfig);
+        }
+    }
+
+    function cloneNodesFromTemplateSourceElement(elemInstance) {
+        switch (ko.utils.tagNameLower(elemInstance)) {
+            case 'script':
+                return ko.utils.parseHtmlFragment(elemInstance.text);
+            case 'textarea':
+                return ko.utils.parseHtmlFragment(elemInstance.value);
+            case 'template':
+                // For browsers with proper <template> element support (i.e., where the .content property
+                // gives a document fragment), use that document fragment.
+                if (isDocumentFragment(elemInstance.content)) {
+                    return ko.utils.cloneNodes(elemInstance.content.childNodes);
+                }
+        }
+
+        // Regular elements such as <div>, and <template> elements on old browsers that don't really
+        // understand <template> and just treat it as a regular container
+        return ko.utils.cloneNodes(elemInstance.childNodes);
+    }
+
+    function isDomElement(obj) {
+        if (window['HTMLElement']) {
+            return obj instanceof HTMLElement;
+        } else {
+            return obj && obj.tagName && obj.nodeType === 1;
+        }
+    }
+
+    function isDocumentFragment(obj) {
+        if (window['DocumentFragment']) {
+            return obj instanceof DocumentFragment;
+        } else {
+            return obj && obj.nodeType === 11;
+        }
+    }
+
+    function possiblyGetConfigFromAmd(errorCallback, config, callback) {
+        if (typeof config['require'] === 'string') {
+            // The config is the value of an AMD module
+            if (amdRequire || window['require']) {
+                (amdRequire || window['require'])([config['require']], callback);
+            } else {
+                errorCallback('Uses require, but no AMD loader is present');
+            }
+        } else {
+            callback(config);
+        }
+    }
+
+    function makeErrorCallback(componentName) {
+        return function (message) {
+            throw new Error('Component \'' + componentName + '\': ' + message);
+        };
+    }
+
+    ko.exportSymbol('components.register', ko.components.register);
+    ko.exportSymbol('components.isRegistered', ko.components.isRegistered);
+    ko.exportSymbol('components.unregister', ko.components.unregister);
+
+    // Expose the default loader so that developers can directly ask it for configuration
+    // or to resolve configuration
+    ko.exportSymbol('components.defaultLoader', ko.components.defaultLoader);
+
+    // By default, the default loader is the only registered component loader
+    ko.components['loaders'].push(ko.components.defaultLoader);
+
+    // Privately expose the underlying config registry for use in old-IE shim
+    ko.components._allRegisteredComponents = defaultConfigRegistry;
+})();

demo/filebrowser-durandal-widget/lib/knockout/src/components/loaderRegistry.js

@@ -0,0 +1,142 @@
+(function(undefined) {
+    var loadingSubscribablesCache = {}, // Tracks component loads that are currently in flight
+        loadedDefinitionsCache = {};    // Tracks component loads that have already completed
+
+    ko.components = {
+        get: function(componentName, callback) {
+            var cachedDefinition = getObjectOwnProperty(loadedDefinitionsCache, componentName);
+            if (cachedDefinition) {
+                // It's already loaded and cached. Reuse the same definition object.
+                // Note that for API consistency, even cache hits complete asynchronously by default.
+                // You can bypass this by putting synchronous:true on your component config.
+                if (cachedDefinition.isSynchronousComponent) {
+                    ko.dependencyDetection.ignore(function() { // See comment in loaderRegistryBehaviors.js for reasoning
+                        callback(cachedDefinition.definition);
+                    });
+                } else {
+                    ko.tasks.schedule(function() { callback(cachedDefinition.definition); });
+                }
+            } else {
+                // Join the loading process that is already underway, or start a new one.
+                loadComponentAndNotify(componentName, callback);
+            }
+        },
+
+        clearCachedDefinition: function(componentName) {
+            delete loadedDefinitionsCache[componentName];
+        },
+
+        _getFirstResultFromLoaders: getFirstResultFromLoaders
+    };
+
+    function getObjectOwnProperty(obj, propName) {
+        return obj.hasOwnProperty(propName) ? obj[propName] : undefined;
+    }
+
+    function loadComponentAndNotify(componentName, callback) {
+        var subscribable = getObjectOwnProperty(loadingSubscribablesCache, componentName),
+            completedAsync;
+        if (!subscribable) {
+            // It's not started loading yet. Start loading, and when it's done, move it to loadedDefinitionsCache.
+            subscribable = loadingSubscribablesCache[componentName] = new ko.subscribable();
+            subscribable.subscribe(callback);
+
+            beginLoadingComponent(componentName, function(definition, config) {
+                var isSynchronousComponent = !!(config && config['synchronous']);
+                loadedDefinitionsCache[componentName] = { definition: definition, isSynchronousComponent: isSynchronousComponent };
+                delete loadingSubscribablesCache[componentName];
+
+                // For API consistency, all loads complete asynchronously. However we want to avoid
+                // adding an extra task schedule if it's unnecessary (i.e., the completion is already
+                // async).
+                //
+                // You can bypass the 'always asynchronous' feature by putting the synchronous:true
+                // flag on your component configuration when you register it.
+                if (completedAsync || isSynchronousComponent) {
+                    // Note that notifySubscribers ignores any dependencies read within the callback.
+                    // See comment in loaderRegistryBehaviors.js for reasoning
+                    subscribable['notifySubscribers'](definition);
+                } else {
+                    ko.tasks.schedule(function() {
+                        subscribable['notifySubscribers'](definition);
+                    });
+                }
+            });
+            completedAsync = true;
+        } else {
+            subscribable.subscribe(callback);
+        }
+    }
+
+    function beginLoadingComponent(componentName, callback) {
+        getFirstResultFromLoaders('getConfig', [componentName], function(config) {
+            if (config) {
+                // We have a config, so now load its definition
+                getFirstResultFromLoaders('loadComponent', [componentName, config], function(definition) {
+                    callback(definition, config);
+                });
+            } else {
+                // The component has no config - it's unknown to all the loaders.
+                // Note that this is not an error (e.g., a module loading error) - that would abort the
+                // process and this callback would not run. For this callback to run, all loaders must
+                // have confirmed they don't know about this component.
+                callback(null, null);
+            }
+        });
+    }
+
+    function getFirstResultFromLoaders(methodName, argsExceptCallback, callback, candidateLoaders) {
+        // On the first call in the stack, start with the full set of loaders
+        if (!candidateLoaders) {
+            candidateLoaders = ko.components['loaders'].slice(0); // Use a copy, because we'll be mutating this array
+        }
+
+        // Try the next candidate
+        var currentCandidateLoader = candidateLoaders.shift();
+        if (currentCandidateLoader) {
+            var methodInstance = currentCandidateLoader[methodName];
+            if (methodInstance) {
+                var wasAborted = false,
+                    synchronousReturnValue = methodInstance.apply(currentCandidateLoader, argsExceptCallback.concat(function(result) {
+                        if (wasAborted) {
+                            callback(null);
+                        } else if (result !== null) {
+                            // This candidate returned a value. Use it.
+                            callback(result);
+                        } else {
+                            // Try the next candidate
+                            getFirstResultFromLoaders(methodName, argsExceptCallback, callback, candidateLoaders);
+                        }
+                    }));
+
+                // Currently, loaders may not return anything synchronously. This leaves open the possibility
+                // that we'll extend the API to support synchronous return values in the future. It won't be
+                // a breaking change, because currently no loader is allowed to return anything except undefined.
+                if (synchronousReturnValue !== undefined) {
+                    wasAborted = true;
+
+                    // Method to suppress exceptions will remain undocumented. This is only to keep
+                    // KO's specs running tidily, since we can observe the loading got aborted without
+                    // having exceptions cluttering up the console too.
+                    if (!currentCandidateLoader['suppressLoaderExceptions']) {
+                        throw new Error('Component loaders must supply values by invoking the callback, not by returning values synchronously.');
+                    }
+                }
+            } else {
+                // This candidate doesn't have the relevant handler. Synchronously move on to the next one.
+                getFirstResultFromLoaders(methodName, argsExceptCallback, callback, candidateLoaders);
+            }
+        } else {
+            // No candidates returned a value
+            callback(null);
+        }
+    }
+
+    // Reference the loaders via string name so it's possible for developers
+    // to replace the whole array by assigning to ko.components.loaders
+    ko.components['loaders'] = [];
+
+    ko.exportSymbol('components', ko.components);
+    ko.exportSymbol('components.get', ko.components.get);
+    ko.exportSymbol('components.clearCachedDefinition', ko.components.clearCachedDefinition);
+})();

demo/filebrowser-durandal-widget/lib/knockout/src/google-closure-compiler-utils.js

@@ -0,0 +1,15 @@
+// Google Closure Compiler helpers (used only to make the minified file smaller)
+ko.exportSymbol = function(koPath, object) {
+    var tokens = koPath.split(".");
+
+    // In the future, "ko" may become distinct from "koExports" (so that non-exported objects are not reachable)
+    // At that point, "target" would be set to: (typeof koExports !== "undefined" ? koExports : ko)
+    var target = ko;
+
+    for (var i = 0; i < tokens.length - 1; i++)
+        target = target[tokens[i]];
+    target[tokens[tokens.length - 1]] = object;
+};
+ko.exportProperty = function(owner, publicName, object) {
+    owner[publicName] = object;
+};

demo/filebrowser-durandal-widget/lib/knockout/src/memoization.js

@@ -0,0 +1,70 @@
+
+ko.memoization = (function () {
+    var memos = {};
+
+    function randomMax8HexChars() {
+        return (((1 + Math.random()) * 0x100000000) | 0).toString(16).substring(1);
+    }
+    function generateRandomId() {
+        return randomMax8HexChars() + randomMax8HexChars();
+    }
+    function findMemoNodes(rootNode, appendToArray) {
+        if (!rootNode)
+            return;
+        if (rootNode.nodeType == 8) {
+            var memoId = ko.memoization.parseMemoText(rootNode.nodeValue);
+            if (memoId != null)
+                appendToArray.push({ domNode: rootNode, memoId: memoId });
+        } else if (rootNode.nodeType == 1) {
+            for (var i = 0, childNodes = rootNode.childNodes, j = childNodes.length; i < j; i++)
+                findMemoNodes(childNodes[i], appendToArray);
+        }
+    }
+
+    return {
+        memoize: function (callback) {
+            if (typeof callback != "function")
+                throw new Error("You can only pass a function to ko.memoization.memoize()");
+            var memoId = generateRandomId();
+            memos[memoId] = callback;
+            return "<!--[ko_memo:" + memoId + "]-->";
+        },
+
+        unmemoize: function (memoId, callbackParams) {
+            var callback = memos[memoId];
+            if (callback === undefined)
+                throw new Error("Couldn't find any memo with ID " + memoId + ". Perhaps it's already been unmemoized.");
+            try {
+                callback.apply(null, callbackParams || []);
+                return true;
+            }
+            finally { delete memos[memoId]; }
+        },
+
+        unmemoizeDomNodeAndDescendants: function (domNode, extraCallbackParamsArray) {
+            var memos = [];
+            findMemoNodes(domNode, memos);
+            for (var i = 0, j = memos.length; i < j; i++) {
+                var node = memos[i].domNode;
+                var combinedParams = [node];
+                if (extraCallbackParamsArray)
+                    ko.utils.arrayPushAll(combinedParams, extraCallbackParamsArray);
+                ko.memoization.unmemoize(memos[i].memoId, combinedParams);
+                node.nodeValue = ""; // Neuter this node so we don't try to unmemoize it again
+                if (node.parentNode)
+                    node.parentNode.removeChild(node); // If possible, erase it totally (not always possible - someone else might just hold a reference to it then call unmemoizeDomNodeAndDescendants again)
+            }
+        },
+
+        parseMemoText: function (memoText) {
+            var match = memoText.match(/^\[ko_memo\:(.*?)\]$/);
+            return match ? match[1] : null;
+        }
+    };
+})();
+
+ko.exportSymbol('memoization', ko.memoization);
+ko.exportSymbol('memoization.memoize', ko.memoization.memoize);
+ko.exportSymbol('memoization.unmemoize', ko.memoization.unmemoize);
+ko.exportSymbol('memoization.parseMemoText', ko.memoization.parseMemoText);
+ko.exportSymbol('memoization.unmemoizeDomNodeAndDescendants', ko.memoization.unmemoizeDomNodeAndDescendants);

demo/filebrowser-durandal-widget/lib/knockout/src/namespace.js

@@ -0,0 +1,3 @@
+// Internally, all KO objects are attached to koExports (even the non-exported ones whose names will be minified by the closure compiler).
+// In the future, the following "ko" variable may be made distinct from "koExports" so that private objects are not externally reachable.
+var ko = typeof koExports !== 'undefined' ? koExports : {};

demo/filebrowser-durandal-widget/lib/knockout/src/options.js

@@ -0,0 +1,7 @@
+// For any options that may affect various areas of Knockout and aren't directly associated with data binding.
+ko.options = {
+    'deferUpdates': false,
+    'useOnlyNativeEvents': false
+};
+
+//ko.exportSymbol('options', ko.options);   // 'options' isn't minified

demo/filebrowser-durandal-widget/lib/knockout/src/subscribables/dependencyDetection.js

@@ -0,0 +1,64 @@
+
+ko.computedContext = ko.dependencyDetection = (function () {
+    var outerFrames = [],
+        currentFrame,
+        lastId = 0;
+
+    // Return a unique ID that can be assigned to an observable for dependency tracking.
+    // Theoretically, you could eventually overflow the number storage size, resulting
+    // in duplicate IDs. But in JavaScript, the largest exact integral value is 2^53
+    // or 9,007,199,254,740,992. If you created 1,000,000 IDs per second, it would
+    // take over 285 years to reach that number.
+    // Reference http://blog.vjeux.com/2010/javascript/javascript-max_int-number-limits.html
+    function getId() {
+        return ++lastId;
+    }
+
+    function begin(options) {
+        outerFrames.push(currentFrame);
+        currentFrame = options;
+    }
+
+    function end() {
+        currentFrame = outerFrames.pop();
+    }
+
+    return {
+        begin: begin,
+
+        end: end,
+
+        registerDependency: function (subscribable) {
+            if (currentFrame) {
+                if (!ko.isSubscribable(subscribable))
+                    throw new Error("Only subscribable things can act as dependencies");
+                currentFrame.callback.call(currentFrame.callbackTarget, subscribable, subscribable._id || (subscribable._id = getId()));
+            }
+        },
+
+        ignore: function (callback, callbackTarget, callbackArgs) {
+            try {
+                begin();
+                return callback.apply(callbackTarget, callbackArgs || []);
+            } finally {
+                end();
+            }
+        },
+
+        getDependenciesCount: function () {
+            if (currentFrame)
+                return currentFrame.computed.getDependenciesCount();
+        },
+
+        isInitial: function() {
+            if (currentFrame)
+                return currentFrame.isInitial;
+        }
+    };
+})();
+
+ko.exportSymbol('computedContext', ko.computedContext);
+ko.exportSymbol('computedContext.getDependenciesCount', ko.computedContext.getDependenciesCount);
+ko.exportSymbol('computedContext.isInitial', ko.computedContext.isInitial);
+
+ko.exportSymbol('ignoreDependencies', ko.ignoreDependencies = ko.dependencyDetection.ignore);

demo/filebrowser-durandal-widget/lib/knockout/src/subscribables/dependentObservable.js

@@ -0,0 +1,499 @@
+var computedState = ko.utils.createSymbolOrString('_state');
+
+ko.computed = ko.dependentObservable = function (evaluatorFunctionOrOptions, evaluatorFunctionTarget, options) {
+    if (typeof evaluatorFunctionOrOptions === "object") {
+        // Single-parameter syntax - everything is on this "options" param
+        options = evaluatorFunctionOrOptions;
+    } else {
+        // Multi-parameter syntax - construct the options according to the params passed
+        options = options || {};
+        if (evaluatorFunctionOrOptions) {
+            options["read"] = evaluatorFunctionOrOptions;
+        }
+    }
+    if (typeof options["read"] != "function")
+        throw Error("Pass a function that returns the value of the ko.computed");
+
+    var writeFunction = options["write"];
+    var state = {
+        latestValue: undefined,
+        isStale: true,
+        isDirty: true,
+        isBeingEvaluated: false,
+        suppressDisposalUntilDisposeWhenReturnsFalse: false,
+        isDisposed: false,
+        pure: false,
+        isSleeping: false,
+        readFunction: options["read"],
+        evaluatorFunctionTarget: evaluatorFunctionTarget || options["owner"],
+        disposeWhenNodeIsRemoved: options["disposeWhenNodeIsRemoved"] || options.disposeWhenNodeIsRemoved || null,
+        disposeWhen: options["disposeWhen"] || options.disposeWhen,
+        domNodeDisposalCallback: null,
+        dependencyTracking: {},
+        dependenciesCount: 0,
+        evaluationTimeoutInstance: null
+    };
+
+    function computedObservable() {
+        if (arguments.length > 0) {
+            if (typeof writeFunction === "function") {
+                // Writing a value
+                writeFunction.apply(state.evaluatorFunctionTarget, arguments);
+            } else {
+                throw new Error("Cannot write a value to a ko.computed unless you specify a 'write' option. If you wish to read the current value, don't pass any parameters.");
+            }
+            return this; // Permits chained assignments
+        } else {
+            // Reading the value
+            ko.dependencyDetection.registerDependency(computedObservable);
+            if (state.isDirty || (state.isSleeping && computedObservable.haveDependenciesChanged())) {
+                computedObservable.evaluateImmediate();
+            }
+            return state.latestValue;
+        }
+    }
+
+    computedObservable[computedState] = state;
+    computedObservable.hasWriteFunction = typeof writeFunction === "function";
+
+    // Inherit from 'subscribable'
+    if (!ko.utils.canSetPrototype) {
+        // 'subscribable' won't be on the prototype chain unless we put it there directly
+        ko.utils.extend(computedObservable, ko.subscribable['fn']);
+    }
+    ko.subscribable['fn'].init(computedObservable);
+
+    // Inherit from 'computed'
+    ko.utils.setPrototypeOfOrExtend(computedObservable, computedFn);
+
+    if (options['pure']) {
+        state.pure = true;
+        state.isSleeping = true;     // Starts off sleeping; will awake on the first subscription
+        ko.utils.extend(computedObservable, pureComputedOverrides);
+    } else if (options['deferEvaluation']) {
+        ko.utils.extend(computedObservable, deferEvaluationOverrides);
+    }
+
+    if (ko.options['deferUpdates']) {
+        ko.extenders['deferred'](computedObservable, true);
+    }
+
+    if (DEBUG) {
+        // #1731 - Aid debugging by exposing the computed's options
+        computedObservable["_options"] = options;
+    }
+
+    if (state.disposeWhenNodeIsRemoved) {
+        // Since this computed is associated with a DOM node, and we don't want to dispose the computed
+        // until the DOM node is *removed* from the document (as opposed to never having been in the document),
+        // we'll prevent disposal until "disposeWhen" first returns false.
+        state.suppressDisposalUntilDisposeWhenReturnsFalse = true;
+
+        // disposeWhenNodeIsRemoved: true can be used to opt into the "only dispose after first false result"
+        // behaviour even if there's no specific node to watch. In that case, clear the option so we don't try
+        // to watch for a non-node's disposal. This technique is intended for KO's internal use only and shouldn't
+        // be documented or used by application code, as it's likely to change in a future version of KO.
+        if (!state.disposeWhenNodeIsRemoved.nodeType) {
+            state.disposeWhenNodeIsRemoved = null;
+        }
+    }
+
+    // Evaluate, unless sleeping or deferEvaluation is true
+    if (!state.isSleeping && !options['deferEvaluation']) {
+        computedObservable.evaluateImmediate();
+    }
+
+    // Attach a DOM node disposal callback so that the computed will be proactively disposed as soon as the node is
+    // removed using ko.removeNode. But skip if isActive is false (there will never be any dependencies to dispose).
+    if (state.disposeWhenNodeIsRemoved && computedObservable.isActive()) {
+        ko.utils.domNodeDisposal.addDisposeCallback(state.disposeWhenNodeIsRemoved, state.domNodeDisposalCallback = function () {
+            computedObservable.dispose();
+        });
+    }
+
+    return computedObservable;
+};
+
+// Utility function that disposes a given dependencyTracking entry
+function computedDisposeDependencyCallback(id, entryToDispose) {
+    if (entryToDispose !== null && entryToDispose.dispose) {
+        entryToDispose.dispose();
+    }
+}
+
+// This function gets called each time a dependency is detected while evaluating a computed.
+// It's factored out as a shared function to avoid creating unnecessary function instances during evaluation.
+function computedBeginDependencyDetectionCallback(subscribable, id) {
+    var computedObservable = this.computedObservable,
+        state = computedObservable[computedState];
+    if (!state.isDisposed) {
+        if (this.disposalCount && this.disposalCandidates[id]) {
+            // Don't want to dispose this subscription, as it's still being used
+            computedObservable.addDependencyTracking(id, subscribable, this.disposalCandidates[id]);
+            this.disposalCandidates[id] = null; // No need to actually delete the property - disposalCandidates is a transient object anyway
+            --this.disposalCount;
+        } else if (!state.dependencyTracking[id]) {
+            // Brand new subscription - add it
+            computedObservable.addDependencyTracking(id, subscribable, state.isSleeping ? { _target: subscribable } : computedObservable.subscribeToDependency(subscribable));
+        }
+        // If the observable we've accessed has a pending notification, ensure we get notified of the actual final value (bypass equality checks)
+        if (subscribable._notificationIsPending) {
+            subscribable._notifyNextChangeIfValueIsDifferent();
+        }
+    }
+}
+
+var computedFn = {
+    "equalityComparer": valuesArePrimitiveAndEqual,
+    getDependenciesCount: function () {
+        return this[computedState].dependenciesCount;
+    },
+    addDependencyTracking: function (id, target, trackingObj) {
+        if (this[computedState].pure && target === this) {
+            throw Error("A 'pure' computed must not be called recursively");
+        }
+
+        this[computedState].dependencyTracking[id] = trackingObj;
+        trackingObj._order = this[computedState].dependenciesCount++;
+        trackingObj._version = target.getVersion();
+    },
+    haveDependenciesChanged: function () {
+        var id, dependency, dependencyTracking = this[computedState].dependencyTracking;
+        for (id in dependencyTracking) {
+            if (dependencyTracking.hasOwnProperty(id)) {
+                dependency = dependencyTracking[id];
+                if ((this._evalDelayed && dependency._target._notificationIsPending) || dependency._target.hasChanged(dependency._version)) {
+                    return true;
+                }
+            }
+        }
+    },
+    markDirty: function () {
+        // Process "dirty" events if we can handle delayed notifications
+        if (this._evalDelayed && !this[computedState].isBeingEvaluated) {
+            this._evalDelayed(false /*isChange*/);
+        }
+    },
+    isActive: function () {
+        var state = this[computedState];
+        return state.isDirty || state.dependenciesCount > 0;
+    },
+    respondToChange: function () {
+        // Ignore "change" events if we've already scheduled a delayed notification
+        if (!this._notificationIsPending) {
+            this.evaluatePossiblyAsync();
+        } else if (this[computedState].isDirty) {
+            this[computedState].isStale = true;
+        }
+    },
+    subscribeToDependency: function (target) {
+        if (target._deferUpdates && !this[computedState].disposeWhenNodeIsRemoved) {
+            var dirtySub = target.subscribe(this.markDirty, this, 'dirty'),
+                changeSub = target.subscribe(this.respondToChange, this);
+            return {
+                _target: target,
+                dispose: function () {
+                    dirtySub.dispose();
+                    changeSub.dispose();
+                }
+            };
+        } else {
+            return target.subscribe(this.evaluatePossiblyAsync, this);
+        }
+    },
+    evaluatePossiblyAsync: function () {
+        var computedObservable = this,
+            throttleEvaluationTimeout = computedObservable['throttleEvaluation'];
+        if (throttleEvaluationTimeout && throttleEvaluationTimeout >= 0) {
+            clearTimeout(this[computedState].evaluationTimeoutInstance);
+            this[computedState].evaluationTimeoutInstance = ko.utils.setTimeout(function () {
+                computedObservable.evaluateImmediate(true /*notifyChange*/);
+            }, throttleEvaluationTimeout);
+        } else if (computedObservable._evalDelayed) {
+            computedObservable._evalDelayed(true /*isChange*/);
+        } else {
+            computedObservable.evaluateImmediate(true /*notifyChange*/);
+        }
+    },
+    evaluateImmediate: function (notifyChange) {
+        var computedObservable = this,
+            state = computedObservable[computedState],
+            disposeWhen = state.disposeWhen,
+            changed = false;
+
+        if (state.isBeingEvaluated) {
+            // If the evaluation of a ko.computed causes side effects, it's possible that it will trigger its own re-evaluation.
+            // This is not desirable (it's hard for a developer to realise a chain of dependencies might cause this, and they almost
+            // certainly didn't intend infinite re-evaluations). So, for predictability, we simply prevent ko.computeds from causing
+            // their own re-evaluation. Further discussion at https://github.com/SteveSanderson/knockout/pull/387
+            return;
+        }
+
+        // Do not evaluate (and possibly capture new dependencies) if disposed
+        if (state.isDisposed) {
+            return;
+        }
+
+        if (state.disposeWhenNodeIsRemoved && !ko.utils.domNodeIsAttachedToDocument(state.disposeWhenNodeIsRemoved) || disposeWhen && disposeWhen()) {
+            // See comment above about suppressDisposalUntilDisposeWhenReturnsFalse
+            if (!state.suppressDisposalUntilDisposeWhenReturnsFalse) {
+                computedObservable.dispose();
+                return;
+            }
+        } else {
+            // It just did return false, so we can stop suppressing now
+            state.suppressDisposalUntilDisposeWhenReturnsFalse = false;
+        }
+
+        state.isBeingEvaluated = true;
+        try {
+            changed = this.evaluateImmediate_CallReadWithDependencyDetection(notifyChange);
+        } finally {
+            state.isBeingEvaluated = false;
+        }
+
+        if (!state.dependenciesCount) {
+            computedObservable.dispose();
+        }
+
+        return changed;
+    },
+    evaluateImmediate_CallReadWithDependencyDetection: function (notifyChange) {
+        // This function is really just part of the evaluateImmediate logic. You would never call it from anywhere else.
+        // Factoring it out into a separate function means it can be independent of the try/catch block in evaluateImmediate,
+        // which contributes to saving about 40% off the CPU overhead of computed evaluation (on V8 at least).
+
+        var computedObservable = this,
+            state = computedObservable[computedState],
+            changed = false;
+
+        // Initially, we assume that none of the subscriptions are still being used (i.e., all are candidates for disposal).
+        // Then, during evaluation, we cross off any that are in fact still being used.
+        var isInitial = state.pure ? undefined : !state.dependenciesCount,   // If we're evaluating when there are no previous dependencies, it must be the first time
+            dependencyDetectionContext = {
+                computedObservable: computedObservable,
+                disposalCandidates: state.dependencyTracking,
+                disposalCount: state.dependenciesCount
+            };
+
+        ko.dependencyDetection.begin({
+            callbackTarget: dependencyDetectionContext,
+            callback: computedBeginDependencyDetectionCallback,
+            computed: computedObservable,
+            isInitial: isInitial
+        });
+
+        state.dependencyTracking = {};
+        state.dependenciesCount = 0;
+
+        var newValue = this.evaluateImmediate_CallReadThenEndDependencyDetection(state, dependencyDetectionContext);
+
+        if (computedObservable.isDifferent(state.latestValue, newValue)) {
+            if (!state.isSleeping) {
+                computedObservable["notifySubscribers"](state.latestValue, "beforeChange");
+            }
+
+            state.latestValue = newValue;
+            if (DEBUG) computedObservable._latestValue = newValue;
+
+            if (state.isSleeping) {
+                computedObservable.updateVersion();
+            } else if (notifyChange) {
+                computedObservable["notifySubscribers"](state.latestValue);
+            }
+
+            changed = true;
+        }
+
+        if (isInitial) {
+            computedObservable["notifySubscribers"](state.latestValue, "awake");
+        }
+
+        return changed;
+    },
+    evaluateImmediate_CallReadThenEndDependencyDetection: function (state, dependencyDetectionContext) {
+        // This function is really part of the evaluateImmediate_CallReadWithDependencyDetection logic.
+        // You'd never call it from anywhere else. Factoring it out means that evaluateImmediate_CallReadWithDependencyDetection
+        // can be independent of try/finally blocks, which contributes to saving about 40% off the CPU
+        // overhead of computed evaluation (on V8 at least).
+
+        try {
+            var readFunction = state.readFunction;
+            return state.evaluatorFunctionTarget ? readFunction.call(state.evaluatorFunctionTarget) : readFunction();
+        } finally {
+            ko.dependencyDetection.end();
+
+            // For each subscription no longer being used, remove it from the active subscriptions list and dispose it
+            if (dependencyDetectionContext.disposalCount && !state.isSleeping) {
+                ko.utils.objectForEach(dependencyDetectionContext.disposalCandidates, computedDisposeDependencyCallback);
+            }
+
+            state.isStale = state.isDirty = false;
+        }
+    },
+    peek: function (evaluate) {
+        // By default, peek won't re-evaluate, except while the computed is sleeping or to get the initial value when "deferEvaluation" is set.
+        // Pass in true to evaluate if needed.
+        var state = this[computedState];
+        if ((state.isDirty && (evaluate || !state.dependenciesCount)) || (state.isSleeping && this.haveDependenciesChanged())) {
+            this.evaluateImmediate();
+        }
+        return state.latestValue;
+    },
+    limit: function (limitFunction) {
+        // Override the limit function with one that delays evaluation as well
+        ko.subscribable['fn'].limit.call(this, limitFunction);
+        this._evalIfChanged = function () {
+            if (this[computedState].isStale) {
+                this.evaluateImmediate();
+            } else {
+                this[computedState].isDirty = false;
+            }
+            return this[computedState].latestValue;
+        };
+        this._evalDelayed = function (isChange) {
+            this._limitBeforeChange(this[computedState].latestValue);
+
+            // Mark as dirty
+            this[computedState].isDirty = true;
+            if (isChange) {
+                this[computedState].isStale = true;
+            }
+
+            // Pass the observable to the "limit" code, which will evaluate it when
+            // it's time to do the notification.
+            this._limitChange(this);
+        };
+    },
+    dispose: function () {
+        var state = this[computedState];
+        if (!state.isSleeping && state.dependencyTracking) {
+            ko.utils.objectForEach(state.dependencyTracking, function (id, dependency) {
+                if (dependency.dispose)
+                    dependency.dispose();
+            });
+        }
+        if (state.disposeWhenNodeIsRemoved && state.domNodeDisposalCallback) {
+            ko.utils.domNodeDisposal.removeDisposeCallback(state.disposeWhenNodeIsRemoved, state.domNodeDisposalCallback);
+        }
+        state.dependencyTracking = null;
+        state.dependenciesCount = 0;
+        state.isDisposed = true;
+        state.isStale = false;
+        state.isDirty = false;
+        state.isSleeping = false;
+        state.disposeWhenNodeIsRemoved = null;
+    }
+};
+
+var pureComputedOverrides = {
+    beforeSubscriptionAdd: function (event) {
+        // If asleep, wake up the computed by subscribing to any dependencies.
+        var computedObservable = this,
+            state = computedObservable[computedState];
+        if (!state.isDisposed && state.isSleeping && event == 'change') {
+            state.isSleeping = false;
+            if (state.isStale || computedObservable.haveDependenciesChanged()) {
+                state.dependencyTracking = null;
+                state.dependenciesCount = 0;
+                if (computedObservable.evaluateImmediate()) {
+                    computedObservable.updateVersion();
+                }
+            } else {
+                // First put the dependencies in order
+                var dependeciesOrder = [];
+                ko.utils.objectForEach(state.dependencyTracking, function (id, dependency) {
+                    dependeciesOrder[dependency._order] = id;
+                });
+                // Next, subscribe to each one
+                ko.utils.arrayForEach(dependeciesOrder, function (id, order) {
+                    var dependency = state.dependencyTracking[id],
+                        subscription = computedObservable.subscribeToDependency(dependency._target);
+                    subscription._order = order;
+                    subscription._version = dependency._version;
+                    state.dependencyTracking[id] = subscription;
+                });
+            }
+            if (!state.isDisposed) {     // test since evaluating could trigger disposal
+                computedObservable["notifySubscribers"](state.latestValue, "awake");
+            }
+        }
+    },
+    afterSubscriptionRemove: function (event) {
+        var state = this[computedState];
+        if (!state.isDisposed && event == 'change' && !this.hasSubscriptionsForEvent('change')) {
+            ko.utils.objectForEach(state.dependencyTracking, function (id, dependency) {
+                if (dependency.dispose) {
+                    state.dependencyTracking[id] = {
+                        _target: dependency._target,
+                        _order: dependency._order,
+                        _version: dependency._version
+                    };
+                    dependency.dispose();
+                }
+            });
+            state.isSleeping = true;
+            this["notifySubscribers"](undefined, "asleep");
+        }
+    },
+    getVersion: function () {
+        // Because a pure computed is not automatically updated while it is sleeping, we can't
+        // simply return the version number. Instead, we check if any of the dependencies have
+        // changed and conditionally re-evaluate the computed observable.
+        var state = this[computedState];
+        if (state.isSleeping && (state.isStale || this.haveDependenciesChanged())) {
+            this.evaluateImmediate();
+        }
+        return ko.subscribable['fn'].getVersion.call(this);
+    }
+};
+
+var deferEvaluationOverrides = {
+    beforeSubscriptionAdd: function (event) {
+        // This will force a computed with deferEvaluation to evaluate when the first subscription is registered.
+        if (event == 'change' || event == 'beforeChange') {
+            this.peek();
+        }
+    }
+};
+
+// Note that for browsers that don't support proto assignment, the
+// inheritance chain is created manually in the ko.computed constructor
+if (ko.utils.canSetPrototype) {
+    ko.utils.setPrototypeOf(computedFn, ko.subscribable['fn']);
+}
+
+// Set the proto chain values for ko.hasPrototype
+var protoProp = ko.observable.protoProperty; // == "__ko_proto__"
+ko.computed[protoProp] = ko.observable;
+computedFn[protoProp] = ko.computed;
+
+ko.isComputed = function (instance) {
+    return ko.hasPrototype(instance, ko.computed);
+};
+
+ko.isPureComputed = function (instance) {
+    return ko.hasPrototype(instance, ko.computed)
+        && instance[computedState] && instance[computedState].pure;
+};
+
+ko.exportSymbol('computed', ko.computed);
+ko.exportSymbol('dependentObservable', ko.computed);    // export ko.dependentObservable for backwards compatibility (1.x)
+ko.exportSymbol('isComputed', ko.isComputed);
+ko.exportSymbol('isPureComputed', ko.isPureComputed);
+ko.exportSymbol('computed.fn', computedFn);
+ko.exportProperty(computedFn, 'peek', computedFn.peek);
+ko.exportProperty(computedFn, 'dispose', computedFn.dispose);
+ko.exportProperty(computedFn, 'isActive', computedFn.isActive);
+ko.exportProperty(computedFn, 'getDependenciesCount', computedFn.getDependenciesCount);
+
+ko.pureComputed = function (evaluatorFunctionOrOptions, evaluatorFunctionTarget) {
+    if (typeof evaluatorFunctionOrOptions === 'function') {
+        return ko.computed(evaluatorFunctionOrOptions, evaluatorFunctionTarget, {'pure':true});
+    } else {
+        evaluatorFunctionOrOptions = ko.utils.extend({}, evaluatorFunctionOrOptions);   // make a copy of the parameter object
+        evaluatorFunctionOrOptions['pure'] = true;
+        return ko.computed(evaluatorFunctionOrOptions, evaluatorFunctionTarget);
+    }
+}
+ko.exportSymbol('pureComputed', ko.pureComputed);

demo/filebrowser-durandal-widget/lib/knockout/src/subscribables/extenders.js

@@ -0,0 +1,115 @@
+ko.extenders = {
+    'throttle': function(target, timeout) {
+        // Throttling means two things:
+
+        // (1) For dependent observables, we throttle *evaluations* so that, no matter how fast its dependencies
+        //     notify updates, the target doesn't re-evaluate (and hence doesn't notify) faster than a certain rate
+        target['throttleEvaluation'] = timeout;
+
+        // (2) For writable targets (observables, or writable dependent observables), we throttle *writes*
+        //     so the target cannot change value synchronously or faster than a certain rate
+        var writeTimeoutInstance = null;
+        return ko.dependentObservable({
+            'read': target,
+            'write': function(value) {
+                clearTimeout(writeTimeoutInstance);
+                writeTimeoutInstance = ko.utils.setTimeout(function() {
+                    target(value);
+                }, timeout);
+            }
+        });
+    },
+
+    'rateLimit': function(target, options) {
+        var timeout, method, limitFunction;
+
+        if (typeof options == 'number') {
+            timeout = options;
+        } else {
+            timeout = options['timeout'];
+            method = options['method'];
+        }
+
+        // rateLimit supersedes deferred updates
+        target._deferUpdates = false;
+
+        limitFunction = method == 'notifyWhenChangesStop' ?  debounce : throttle;
+        target.limit(function(callback) {
+            return limitFunction(callback, timeout);
+        });
+    },
+
+    'deferred': function(target, options) {
+        if (options !== true) {
+            throw new Error('The \'deferred\' extender only accepts the value \'true\', because it is not supported to turn deferral off once enabled.')
+        }
+
+        if (!target._deferUpdates) {
+            target._deferUpdates = true;
+            target.limit(function (callback) {
+                var handle,
+                    ignoreUpdates = false;
+                return function () {
+                    if (!ignoreUpdates) {
+                        ko.tasks.cancel(handle);
+                        handle = ko.tasks.schedule(callback);
+
+                        try {
+                            ignoreUpdates = true;
+                            target['notifySubscribers'](undefined, 'dirty');
+                        } finally {
+                            ignoreUpdates = false;
+                        }
+                    }
+                };
+            });
+        }
+    },
+
+    'notify': function(target, notifyWhen) {
+        target["equalityComparer"] = notifyWhen == "always" ?
+            null :  // null equalityComparer means to always notify
+            valuesArePrimitiveAndEqual;
+    }
+};
+
+var primitiveTypes = { 'undefined':1, 'boolean':1, 'number':1, 'string':1 };
+function valuesArePrimitiveAndEqual(a, b) {
+    var oldValueIsPrimitive = (a === null) || (typeof(a) in primitiveTypes);
+    return oldValueIsPrimitive ? (a === b) : false;
+}
+
+function throttle(callback, timeout) {
+    var timeoutInstance;
+    return function () {
+        if (!timeoutInstance) {
+            timeoutInstance = ko.utils.setTimeout(function () {
+                timeoutInstance = undefined;
+                callback();
+            }, timeout);
+        }
+    };
+}
+
+function debounce(callback, timeout) {
+    var timeoutInstance;
+    return function () {
+        clearTimeout(timeoutInstance);
+        timeoutInstance = ko.utils.setTimeout(callback, timeout);
+    };
+}
+
+function applyExtenders(requestedExtenders) {
+    var target = this;
+    if (requestedExtenders) {
+        ko.utils.objectForEach(requestedExtenders, function(key, value) {
+            var extenderHandler = ko.extenders[key];
+            if (typeof extenderHandler == 'function') {
+                target = extenderHandler(target, value) || target;
+            }
+        });
+    }
+    return target;
+}
+
+ko.exportSymbol('extenders', ko.extenders);

demo/filebrowser-durandal-widget/lib/knockout/src/subscribables/mappingHelpers.js

@@ -0,0 +1,96 @@
+
+(function() {
+    var maxNestedObservableDepth = 10; // Escape the (unlikely) pathalogical case where an observable's current value is itself (or similar reference cycle)
+
+    ko.toJS = function(rootObject) {
+        if (arguments.length == 0)
+            throw new Error("When calling ko.toJS, pass the object you want to convert.");
+
+        // We just unwrap everything at every level in the object graph
+        return mapJsObjectGraph(rootObject, function(valueToMap) {
+            // Loop because an observable's value might in turn be another observable wrapper
+            for (var i = 0; ko.isObservable(valueToMap) && (i < maxNestedObservableDepth); i++)
+                valueToMap = valueToMap();
+            return valueToMap;
+        });
+    };
+
+    ko.toJSON = function(rootObject, replacer, space) {     // replacer and space are optional
+        var plainJavaScriptObject = ko.toJS(rootObject);
+        return ko.utils.stringifyJson(plainJavaScriptObject, replacer, space);
+    };
+
+    function mapJsObjectGraph(rootObject, mapInputCallback, visitedObjects) {
+        visitedObjects = visitedObjects || new objectLookup();
+
+        rootObject = mapInputCallback(rootObject);
+        var canHaveProperties = (typeof rootObject == "object") && (rootObject !== null) && (rootObject !== undefined) && (!(rootObject instanceof RegExp)) && (!(rootObject instanceof Date)) && (!(rootObject instanceof String)) && (!(rootObject instanceof Number)) && (!(rootObject instanceof Boolean));
+        if (!canHaveProperties)
+            return rootObject;
+
+        var outputProperties = rootObject instanceof Array ? [] : {};
+        visitedObjects.save(rootObject, outputProperties);
+
+        visitPropertiesOrArrayEntries(rootObject, function(indexer) {
+            var propertyValue = mapInputCallback(rootObject[indexer]);
+
+            switch (typeof propertyValue) {
+                case "boolean":
+                case "number":
+                case "string":
+                case "function":
+                    outputProperties[indexer] = propertyValue;
+                    break;
+                case "object":
+                case "undefined":
+                    var previouslyMappedValue = visitedObjects.get(propertyValue);
+                    outputProperties[indexer] = (previouslyMappedValue !== undefined)
+                        ? previouslyMappedValue
+                        : mapJsObjectGraph(propertyValue, mapInputCallback, visitedObjects);
+                    break;
+            }
+        });
+
+        return outputProperties;
+    }
+
+    function visitPropertiesOrArrayEntries(rootObject, visitorCallback) {
+        if (rootObject instanceof Array) {
+            for (var i = 0; i < rootObject.length; i++)
+                visitorCallback(i);
+
+            // For arrays, also respect toJSON property for custom mappings (fixes #278)
+            if (typeof rootObject['toJSON'] == 'function')
+                visitorCallback('toJSON');
+        } else {
+            for (var propertyName in rootObject) {
+                visitorCallback(propertyName);
+            }
+        }
+    };
+
+    function objectLookup() {
+        this.keys = [];
+        this.values = [];
+    };
+
+    objectLookup.prototype = {
+        constructor: objectLookup,
+        save: function(key, value) {
+            var existingIndex = ko.utils.arrayIndexOf(this.keys, key);
+            if (existingIndex >= 0)
+                this.values[existingIndex] = value;
+            else {
+                this.keys.push(key);
+                this.values.push(value);
+            }
+        },
+        get: function(key) {
+            var existingIndex = ko.utils.arrayIndexOf(this.keys, key);
+            return (existingIndex >= 0) ? this.values[existingIndex] : undefined;
+        }
+    };
+})();
+
+ko.exportSymbol('toJS', ko.toJS);
+ko.exportSymbol('toJSON', ko.toJSON);

demo/filebrowser-durandal-widget/lib/knockout/src/subscribables/observable.js

@@ -0,0 +1,86 @@
+var observableLatestValue = ko.utils.createSymbolOrString('_latestValue');
+
+ko.observable = function (initialValue) {
+    function observable() {
+        if (arguments.length > 0) {
+            // Write
+
+            // Ignore writes if the value hasn't changed
+            if (observable.isDifferent(observable[observableLatestValue], arguments[0])) {
+                observable.valueWillMutate();
+                observable[observableLatestValue] = arguments[0];
+                observable.valueHasMutated();
+            }
+            return this; // Permits chained assignments
+        }
+        else {
+            // Read
+            ko.dependencyDetection.registerDependency(observable); // The caller only needs to be notified of changes if they did a "read" operation
+            return observable[observableLatestValue];
+        }
+    }
+
+    observable[observableLatestValue] = initialValue;
+
+    // Inherit from 'subscribable'
+    if (!ko.utils.canSetPrototype) {
+        // 'subscribable' won't be on the prototype chain unless we put it there directly
+        ko.utils.extend(observable, ko.subscribable['fn']);
+    }
+    ko.subscribable['fn'].init(observable);
+
+    // Inherit from 'observable'
+    ko.utils.setPrototypeOfOrExtend(observable, observableFn);
+
+    if (ko.options['deferUpdates']) {
+        ko.extenders['deferred'](observable, true);
+    }
+
+    return observable;
+}
+
+// Define prototype for observables
+var observableFn = {
+    'equalityComparer': valuesArePrimitiveAndEqual,
+    peek: function() { return this[observableLatestValue]; },
+    valueHasMutated: function () { this['notifySubscribers'](this[observableLatestValue]); },
+    valueWillMutate: function () { this['notifySubscribers'](this[observableLatestValue], 'beforeChange'); }
+};
+
+// Note that for browsers that don't support proto assignment, the
+// inheritance chain is created manually in the ko.observable constructor
+if (ko.utils.canSetPrototype) {
+    ko.utils.setPrototypeOf(observableFn, ko.subscribable['fn']);
+}
+
+var protoProperty = ko.observable.protoProperty = '__ko_proto__';
+observableFn[protoProperty] = ko.observable;
+
+ko.hasPrototype = function(instance, prototype) {
+    if ((instance === null) || (instance === undefined) || (instance[protoProperty] === undefined)) return false;
+    if (instance[protoProperty] === prototype) return true;
+    return ko.hasPrototype(instance[protoProperty], prototype); // Walk the prototype chain
+};
+
+ko.isObservable = function (instance) {
+    return ko.hasPrototype(instance, ko.observable);
+}
+ko.isWriteableObservable = function (instance) {
+    // Observable
+    if ((typeof instance == 'function') && instance[protoProperty] === ko.observable)
+        return true;
+    // Writeable dependent observable
+    if ((typeof instance == 'function') && (instance[protoProperty] === ko.dependentObservable) && (instance.hasWriteFunction))
+        return true;
+    // Anything else
+    return false;
+}
+
+ko.exportSymbol('observable', ko.observable);
+ko.exportSymbol('isObservable', ko.isObservable);
+ko.exportSymbol('isWriteableObservable', ko.isWriteableObservable);
+ko.exportSymbol('isWritableObservable', ko.isWriteableObservable);
+ko.exportSymbol('observable.fn', observableFn);
+ko.exportProperty(observableFn, 'peek', observableFn.peek);
+ko.exportProperty(observableFn, 'valueHasMutated', observableFn.valueHasMutated);
+ko.exportProperty(observableFn, 'valueWillMutate', observableFn.valueWillMutate);

demo/filebrowser-durandal-widget/lib/knockout/src/subscribables/observableArray.changeTracking.js

@@ -0,0 +1,150 @@
+var arrayChangeEventName = 'arrayChange';
+ko.extenders['trackArrayChanges'] = function(target, options) {
+    // Use the provided options--each call to trackArrayChanges overwrites the previously set options
+    target.compareArrayOptions = {};
+    if (options && typeof options == "object") {
+        ko.utils.extend(target.compareArrayOptions, options);
+    }
+    target.compareArrayOptions['sparse'] = true;
+
+    // Only modify the target observable once
+    if (target.cacheDiffForKnownOperation) {
+        return;
+    }
+    var trackingChanges = false,
+        cachedDiff = null,
+        arrayChangeSubscription,
+        pendingNotifications = 0,
+        underlyingNotifySubscribersFunction,
+        underlyingBeforeSubscriptionAddFunction = target.beforeSubscriptionAdd,
+        underlyingAfterSubscriptionRemoveFunction = target.afterSubscriptionRemove;
+
+    // Watch "subscribe" calls, and for array change events, ensure change tracking is enabled
+    target.beforeSubscriptionAdd = function (event) {
+        if (underlyingBeforeSubscriptionAddFunction)
+            underlyingBeforeSubscriptionAddFunction.call(target, event);
+        if (event === arrayChangeEventName) {
+            trackChanges();
+        }
+    };
+    // Watch "dispose" calls, and for array change events, ensure change tracking is disabled when all are disposed
+    target.afterSubscriptionRemove = function (event) {
+        if (underlyingAfterSubscriptionRemoveFunction)
+            underlyingAfterSubscriptionRemoveFunction.call(target, event);
+        if (event === arrayChangeEventName && !target.hasSubscriptionsForEvent(arrayChangeEventName)) {
+            if (underlyingNotifySubscribersFunction) {
+                target['notifySubscribers'] = underlyingNotifySubscribersFunction;
+                underlyingNotifySubscribersFunction = undefined;
+            }
+            arrayChangeSubscription.dispose();
+            trackingChanges = false;
+        }
+    };
+
+    function trackChanges() {
+        // Calling 'trackChanges' multiple times is the same as calling it once
+        if (trackingChanges) {
+            return;
+        }
+
+        trackingChanges = true;
+
+        // Intercept "notifySubscribers" to track how many times it was called.
+        underlyingNotifySubscribersFunction = target['notifySubscribers'];
+        target['notifySubscribers'] = function(valueToNotify, event) {
+            if (!event || event === defaultEvent) {
+                ++pendingNotifications;
+            }
+            return underlyingNotifySubscribersFunction.apply(this, arguments);
+        };
+
+        // Each time the array changes value, capture a clone so that on the next
+        // change it's possible to produce a diff
+        var previousContents = [].concat(target.peek() || []);
+        cachedDiff = null;
+        arrayChangeSubscription = target.subscribe(function(currentContents) {
+            // Make a copy of the current contents and ensure it's an array
+            currentContents = [].concat(currentContents || []);
+
+            // Compute the diff and issue notifications, but only if someone is listening
+            if (target.hasSubscriptionsForEvent(arrayChangeEventName)) {
+                var changes = getChanges(previousContents, currentContents);
+            }
+
+            // Eliminate references to the old, removed items, so they can be GCed
+            previousContents = currentContents;
+            cachedDiff = null;
+            pendingNotifications = 0;
+
+            if (changes && changes.length) {
+                target['notifySubscribers'](changes, arrayChangeEventName);
+            }
+        });
+    }
+
+    function getChanges(previousContents, currentContents) {
+        // We try to re-use cached diffs.
+        // The scenarios where pendingNotifications > 1 are when using rate-limiting or the Deferred Updates
+        // plugin, which without this check would not be compatible with arrayChange notifications. Normally,
+        // notifications are issued immediately so we wouldn't be queueing up more than one.
+        if (!cachedDiff || pendingNotifications > 1) {
+            cachedDiff = ko.utils.compareArrays(previousContents, currentContents, target.compareArrayOptions);
+        }
+
+        return cachedDiff;
+    }
+
+    target.cacheDiffForKnownOperation = function(rawArray, operationName, args) {
+        // Only run if we're currently tracking changes for this observable array
+        // and there aren't any pending deferred notifications.
+        if (!trackingChanges || pendingNotifications) {
+            return;
+        }
+        var diff = [],
+            arrayLength = rawArray.length,
+            argsLength = args.length,
+            offset = 0;
+
+        function pushDiff(status, value, index) {
+            return diff[diff.length] = { 'status': status, 'value': value, 'index': index };
+        }
+        switch (operationName) {
+            case 'push':
+                offset = arrayLength;
+            case 'unshift':
+                for (var index = 0; index < argsLength; index++) {
+                    pushDiff('added', args[index], offset + index);
+                }
+                break;
+
+            case 'pop':
+                offset = arrayLength - 1;
+            case 'shift':
+                if (arrayLength) {
+                    pushDiff('deleted', rawArray[offset], offset);
+                }
+                break;
+
+            case 'splice':
+                // Negative start index means 'from end of array'. After that we clamp to [0...arrayLength].
+                // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/splice
+                var startIndex = Math.min(Math.max(0, args[0] < 0 ? arrayLength + args[0] : args[0]), arrayLength),
+                    endDeleteIndex = argsLength === 1 ? arrayLength : Math.min(startIndex + (args[1] || 0), arrayLength),
+                    endAddIndex = startIndex + argsLength - 2,
+                    endIndex = Math.max(endDeleteIndex, endAddIndex),
+                    additions = [], deletions = [];
+                for (var index = startIndex, argsIndex = 2; index < endIndex; ++index, ++argsIndex) {
+                    if (index < endDeleteIndex)
+                        deletions.push(pushDiff('deleted', rawArray[index], index));
+                    if (index < endAddIndex)
+                        additions.push(pushDiff('added', args[argsIndex], index));
+                }
+                ko.utils.findMovesInArrayComparison(deletions, additions);
+                break;
+
+            default:
+                return;
+        }
+        cachedDiff = diff;
+    };
+};

demo/filebrowser-durandal-widget/lib/knockout/src/subscribables/observableArray.js

@@ -0,0 +1,123 @@
+ko.observableArray = function (initialValues) {
+    initialValues = initialValues || [];
+
+    if (typeof initialValues != 'object' || !('length' in initialValues))
+        throw new Error("The argument passed when initializing an observable array must be an array, or null, or undefined.");
+
+    var result = ko.observable(initialValues);
+    ko.utils.setPrototypeOfOrExtend(result, ko.observableArray['fn']);
+    return result.extend({'trackArrayChanges':true});
+};
+
+ko.observableArray['fn'] = {
+    'remove': function (valueOrPredicate) {
+        var underlyingArray = this.peek();
+        var removedValues = [];
+        var predicate = typeof valueOrPredicate == "function" && !ko.isObservable(valueOrPredicate) ? valueOrPredicate : function (value) { return value === valueOrPredicate; };
+        for (var i = 0; i < underlyingArray.length; i++) {
+            var value = underlyingArray[i];
+            if (predicate(value)) {
+                if (removedValues.length === 0) {
+                    this.valueWillMutate();
+                }
+                removedValues.push(value);
+                underlyingArray.splice(i, 1);
+                i--;
+            }
+        }
+        if (removedValues.length) {
+            this.valueHasMutated();
+        }
+        return removedValues;
+    },
+
+    'removeAll': function (arrayOfValues) {
+        // If you passed zero args, we remove everything
+        if (arrayOfValues === undefined) {
+            var underlyingArray = this.peek();
+            var allValues = underlyingArray.slice(0);
+            this.valueWillMutate();
+            underlyingArray.splice(0, underlyingArray.length);
+            this.valueHasMutated();
+            return allValues;
+        }
+        // If you passed an arg, we interpret it as an array of entries to remove
+        if (!arrayOfValues)
+            return [];
+        return this['remove'](function (value) {
+            return ko.utils.arrayIndexOf(arrayOfValues, value) >= 0;
+        });
+    },
+
+    'destroy': function (valueOrPredicate) {
+        var underlyingArray = this.peek();
+        var predicate = typeof valueOrPredicate == "function" && !ko.isObservable(valueOrPredicate) ? valueOrPredicate : function (value) { return value === valueOrPredicate; };
+        this.valueWillMutate();
+        for (var i = underlyingArray.length - 1; i >= 0; i--) {
+            var value = underlyingArray[i];
+            if (predicate(value))
+                underlyingArray[i]["_destroy"] = true;
+        }
+        this.valueHasMutated();
+    },
+
+    'destroyAll': function (arrayOfValues) {
+        // If you passed zero args, we destroy everything
+        if (arrayOfValues === undefined)
+            return this['destroy'](function() { return true });
+
+        // If you passed an arg, we interpret it as an array of entries to destroy
+        if (!arrayOfValues)
+            return [];
+        return this['destroy'](function (value) {
+            return ko.utils.arrayIndexOf(arrayOfValues, value) >= 0;
+        });
+    },
+
+    'indexOf': function (item) {
+        var underlyingArray = this();
+        return ko.utils.arrayIndexOf(underlyingArray, item);
+    },
+
+    'replace': function(oldItem, newItem) {
+        var index = this['indexOf'](oldItem);
+        if (index >= 0) {
+            this.valueWillMutate();
+            this.peek()[index] = newItem;
+            this.valueHasMutated();
+        }
+    }
+};
+
+// Note that for browsers that don't support proto assignment, the
+// inheritance chain is created manually in the ko.observableArray constructor
+if (ko.utils.canSetPrototype) {
+    ko.utils.setPrototypeOf(ko.observableArray['fn'], ko.observable['fn']);
+}
+
+// Populate ko.observableArray.fn with read/write functions from native arrays
+// Important: Do not add any additional functions here that may reasonably be used to *read* data from the array
+// because we'll eval them without causing subscriptions, so ko.computed output could end up getting stale
+ko.utils.arrayForEach(["pop", "push", "reverse", "shift", "sort", "splice", "unshift"], function (methodName) {
+    ko.observableArray['fn'][methodName] = function () {
+        // Use "peek" to avoid creating a subscription in any computed that we're executing in the context of
+        // (for consistency with mutating regular observables)
+        var underlyingArray = this.peek();
+        this.valueWillMutate();
+        this.cacheDiffForKnownOperation(underlyingArray, methodName, arguments);
+        var methodCallResult = underlyingArray[methodName].apply(underlyingArray, arguments);
+        this.valueHasMutated();
+        // The native sort and reverse methods return a reference to the array, but it makes more sense to return the observable array instead.
+        return methodCallResult === underlyingArray ? this : methodCallResult;
+    };
+});
+
+// Populate ko.observableArray.fn with read-only functions from native arrays
+ko.utils.arrayForEach(["slice"], function (methodName) {
+    ko.observableArray['fn'][methodName] = function () {
+        var underlyingArray = this();
+        return underlyingArray[methodName].apply(underlyingArray, arguments);
+    };
+});
+
+ko.exportSymbol('observableArray', ko.observableArray);

demo/filebrowser-durandal-widget/lib/knockout/src/subscribables/subscribable.js

@@ -0,0 +1,181 @@
+
+ko.subscription = function (target, callback, disposeCallback) {
+    this._target = target;
+    this.callback = callback;
+    this.disposeCallback = disposeCallback;
+    this.isDisposed = false;
+    ko.exportProperty(this, 'dispose', this.dispose);
+};
+ko.subscription.prototype.dispose = function () {
+    this.isDisposed = true;
+    this.disposeCallback();
+};
+
+ko.subscribable = function () {
+    ko.utils.setPrototypeOfOrExtend(this, ko_subscribable_fn);
+    ko_subscribable_fn.init(this);
+}
+
+var defaultEvent = "change";
+
+// Moved out of "limit" to avoid the extra closure
+function limitNotifySubscribers(value, event) {
+    if (!event || event === defaultEvent) {
+        this._limitChange(value);
+    } else if (event === 'beforeChange') {
+        this._limitBeforeChange(value);
+    } else {
+        this._origNotifySubscribers(value, event);
+    }
+}
+
+var ko_subscribable_fn = {
+    init: function(instance) {
+        instance._subscriptions = { "change": [] };
+        instance._versionNumber = 1;
+    },
+
+    subscribe: function (callback, callbackTarget, event) {
+        var self = this;
+
+        event = event || defaultEvent;
+        var boundCallback = callbackTarget ? callback.bind(callbackTarget) : callback;
+
+        var subscription = new ko.subscription(self, boundCallback, function () {
+            ko.utils.arrayRemoveItem(self._subscriptions[event], subscription);
+            if (self.afterSubscriptionRemove)
+                self.afterSubscriptionRemove(event);
+        });
+
+        if (self.beforeSubscriptionAdd)
+            self.beforeSubscriptionAdd(event);
+
+        if (!self._subscriptions[event])
+            self._subscriptions[event] = [];
+        self._subscriptions[event].push(subscription);
+
+        return subscription;
+    },
+
+    "notifySubscribers": function (valueToNotify, event) {
+        event = event || defaultEvent;
+        if (event === defaultEvent) {
+            this.updateVersion();
+        }
+        if (this.hasSubscriptionsForEvent(event)) {
+            var subs = event === defaultEvent && this._changeSubscriptions || this._subscriptions[event].slice(0);
+            try {
+                ko.dependencyDetection.begin(); // Begin suppressing dependency detection (by setting the top frame to undefined)
+                for (var i = 0, subscription; subscription = subs[i]; ++i) {
+                    // In case a subscription was disposed during the arrayForEach cycle, check
+                    // for isDisposed on each subscription before invoking its callback
+                    if (!subscription.isDisposed)
+                        subscription.callback(valueToNotify);
+                }
+            } finally {
+                ko.dependencyDetection.end(); // End suppressing dependency detection
+            }
+        }
+    },
+
+    getVersion: function () {
+        return this._versionNumber;
+    },
+
+    hasChanged: function (versionToCheck) {
+        return this.getVersion() !== versionToCheck;
+    },
+
+    updateVersion: function () {
+        ++this._versionNumber;
+    },
+
+    limit: function(limitFunction) {
+        var self = this, selfIsObservable = ko.isObservable(self),
+            ignoreBeforeChange, notifyNextChange, previousValue, pendingValue, beforeChange = 'beforeChange';
+
+        if (!self._origNotifySubscribers) {
+            self._origNotifySubscribers = self["notifySubscribers"];
+            self["notifySubscribers"] = limitNotifySubscribers;
+        }
+
+        var finish = limitFunction(function() {
+            self._notificationIsPending = false;
+
+            // If an observable provided a reference to itself, access it to get the latest value.
+            // This allows computed observables to delay calculating their value until needed.
+            if (selfIsObservable && pendingValue === self) {
+                pendingValue = self._evalIfChanged ? self._evalIfChanged() : self();
+            }
+            var shouldNotify = notifyNextChange || self.isDifferent(previousValue, pendingValue);
+
+            notifyNextChange = ignoreBeforeChange = false;
+
+            if (shouldNotify) {
+                self._origNotifySubscribers(previousValue = pendingValue);
+            }
+        });
+
+        self._limitChange = function(value) {
+            self._changeSubscriptions = self._subscriptions[defaultEvent].slice(0);
+            self._notificationIsPending = ignoreBeforeChange = true;
+            pendingValue = value;
+            finish();
+        };
+        self._limitBeforeChange = function(value) {
+            if (!ignoreBeforeChange) {
+                previousValue = value;
+                self._origNotifySubscribers(value, beforeChange);
+            }
+        };
+        self._notifyNextChangeIfValueIsDifferent = function() {
+            if (self.isDifferent(previousValue, self.peek(true /*evaluate*/))) {
+                notifyNextChange = true;
+            }
+        };
+    },
+
+    hasSubscriptionsForEvent: function(event) {
+        return this._subscriptions[event] && this._subscriptions[event].length;
+    },
+
+    getSubscriptionsCount: function (event) {
+        if (event) {
+            return this._subscriptions[event] && this._subscriptions[event].length || 0;
+        } else {
+            var total = 0;
+            ko.utils.objectForEach(this._subscriptions, function(eventName, subscriptions) {
+                if (eventName !== 'dirty')
+                    total += subscriptions.length;
+            });
+            return total;
+        }
+    },
+
+    isDifferent: function(oldValue, newValue) {
+        return !this['equalityComparer'] || !this['equalityComparer'](oldValue, newValue);
+    },
+
+    extend: applyExtenders
+};
+
+ko.exportProperty(ko_subscribable_fn, 'subscribe', ko_subscribable_fn.subscribe);
+ko.exportProperty(ko_subscribable_fn, 'extend', ko_subscribable_fn.extend);
+ko.exportProperty(ko_subscribable_fn, 'getSubscriptionsCount', ko_subscribable_fn.getSubscriptionsCount);
+
+// For browsers that support proto assignment, we overwrite the prototype of each
+// observable instance. Since observables are functions, we need Function.prototype
+// to still be in the prototype chain.
+if (ko.utils.canSetPrototype) {
+    ko.utils.setPrototypeOf(ko_subscribable_fn, Function.prototype);
+}
+
+ko.subscribable['fn'] = ko_subscribable_fn;
+
+
+ko.isSubscribable = function (instance) {
+    return instance != null && typeof instance.subscribe == "function" && typeof instance["notifySubscribers"] == "function";
+};
+
+ko.exportSymbol('subscribable', ko.subscribable);
+ko.exportSymbol('isSubscribable', ko.isSubscribable);

demo/filebrowser-durandal-widget/lib/knockout/src/tasks.js

@@ -0,0 +1,108 @@
+ko.tasks = (function () {
+    var scheduler,
+        taskQueue = [],
+        taskQueueLength = 0,
+        nextHandle = 1,
+        nextIndexToProcess = 0;
+
+    if (window['MutationObserver']) {
+        // Chrome 27+, Firefox 14+, IE 11+, Opera 15+, Safari 6.1+
+        // From https://github.com/petkaantonov/bluebird * Copyright (c) 2014 Petka Antonov * License: MIT
+        scheduler = (function (callback) {
+            var div = document.createElement("div");
+            new MutationObserver(callback).observe(div, {attributes: true});
+            return function () { div.classList.toggle("foo"); };
+        })(scheduledProcess);
+    } else if (document && "onreadystatechange" in document.createElement("script")) {
+        // IE 6-10
+        // From https://github.com/YuzuJS/setImmediate * Copyright (c) 2012 Barnesandnoble.com, llc, Donavon West, and Domenic Denicola * License: MIT
+        scheduler = function (callback) {
+            var script = document.createElement("script");
+            script.onreadystatechange = function () {
+                script.onreadystatechange = null;
+                document.documentElement.removeChild(script);
+                script = null;
+                callback();
+            };
+            document.documentElement.appendChild(script);
+        };
+    } else {
+        scheduler = function (callback) {
+            setTimeout(callback, 0);
+        };
+    }
+
+    function processTasks() {
+        if (taskQueueLength) {
+            // Each mark represents the end of a logical group of tasks and the number of these groups is
+            // limited to prevent unchecked recursion.
+            var mark = taskQueueLength, countMarks = 0;
+
+            // nextIndexToProcess keeps track of where we are in the queue; processTasks can be called recursively without issue
+            for (var task; nextIndexToProcess < taskQueueLength; ) {
+                if (task = taskQueue[nextIndexToProcess++]) {
+                    if (nextIndexToProcess > mark) {
+                        if (++countMarks >= 5000) {
+                            nextIndexToProcess = taskQueueLength;   // skip all tasks remaining in the queue since any of them could be causing the recursion
+                            ko.utils.deferError(Error("'Too much recursion' after processing " + countMarks + " task groups."));
+                            break;
+                        }
+                        mark = taskQueueLength;
+                    }
+                    try {
+                        task();
+                    } catch (ex) {
+                        ko.utils.deferError(ex);
+                    }
+                }
+            }
+        }
+    }
+
+    function scheduledProcess() {
+        processTasks();
+
+        // Reset the queue
+        nextIndexToProcess = taskQueueLength = taskQueue.length = 0;
+    }
+
+    function scheduleTaskProcessing() {
+        ko.tasks['scheduler'](scheduledProcess);
+    }
+
+    var tasks = {
+        'scheduler': scheduler,     // Allow overriding the scheduler
+
+        schedule: function (func) {
+            if (!taskQueueLength) {
+                scheduleTaskProcessing();
+            }
+
+            taskQueue[taskQueueLength++] = func;
+            return nextHandle++;
+        },
+
+        cancel: function (handle) {
+            var index = handle - (nextHandle - taskQueueLength);
+            if (index >= nextIndexToProcess && index < taskQueueLength) {
+                taskQueue[index] = null;
+            }
+        },
+
+        // For testing only: reset the queue and return the previous queue length
+        'resetForTesting': function () {
+            var length = taskQueueLength - nextIndexToProcess;
+            nextIndexToProcess = taskQueueLength = taskQueue.length = 0;
+            return length;
+        },
+
+        runEarly: processTasks
+    };
+
+    return tasks;
+})();
+
+ko.exportSymbol('tasks', ko.tasks);
+ko.exportSymbol('tasks.schedule', ko.tasks.schedule);
+//ko.exportSymbol('tasks.cancel', ko.tasks.cancel);  "cancel" isn't minified
+ko.exportSymbol('tasks.runEarly', ko.tasks.runEarly);

demo/filebrowser-durandal-widget/lib/knockout/src/templating/jquery.tmpl/jqueryTmplTemplateEngine.js

@@ -0,0 +1,84 @@
+(function() {
+    ko.jqueryTmplTemplateEngine = function () {
+        // Detect which version of jquery-tmpl you're using. Unfortunately jquery-tmpl
+        // doesn't expose a version number, so we have to infer it.
+        // Note that as of Knockout 1.3, we only support jQuery.tmpl 1.0.0pre and later,
+        // which KO internally refers to as version "2", so older versions are no longer detected.
+        var jQueryTmplVersion = this.jQueryTmplVersion = (function() {
+            if (!jQueryInstance || !(jQueryInstance['tmpl']))
+                return 0;
+            // Since it exposes no official version number, we use our own numbering system. To be updated as jquery-tmpl evolves.
+            try {
+                if (jQueryInstance['tmpl']['tag']['tmpl']['open'].toString().indexOf('__') >= 0) {
+                    // Since 1.0.0pre, custom tags should append markup to an array called "__"
+                    return 2; // Final version of jquery.tmpl
+                }
+            } catch(ex) { /* Apparently not the version we were looking for */ }
+
+            return 1; // Any older version that we don't support
+        })();
+
+        function ensureHasReferencedJQueryTemplates() {
+            if (jQueryTmplVersion < 2)
+                throw new Error("Your version of jQuery.tmpl is too old. Please upgrade to jQuery.tmpl 1.0.0pre or later.");
+        }
+
+        function executeTemplate(compiledTemplate, data, jQueryTemplateOptions) {
+            return jQueryInstance['tmpl'](compiledTemplate, data, jQueryTemplateOptions);
+        }
+
+        this['renderTemplateSource'] = function(templateSource, bindingContext, options, templateDocument) {
+            templateDocument = templateDocument || document;
+            options = options || {};
+            ensureHasReferencedJQueryTemplates();
+
+            // Ensure we have stored a precompiled version of this template (don't want to reparse on every render)
+            var precompiled = templateSource['data']('precompiled');
+            if (!precompiled) {
+                var templateText = templateSource['text']() || "";
+                // Wrap in "with($whatever.koBindingContext) { ... }"
+                templateText = "{{ko_with $item.koBindingContext}}" + templateText + "{{/ko_with}}";
+
+                precompiled = jQueryInstance['template'](null, templateText);
+                templateSource['data']('precompiled', precompiled);
+            }
+
+            var data = [bindingContext['$data']]; // Prewrap the data in an array to stop jquery.tmpl from trying to unwrap any arrays
+            var jQueryTemplateOptions = jQueryInstance['extend']({ 'koBindingContext': bindingContext }, options['templateOptions']);
+
+            var resultNodes = executeTemplate(precompiled, data, jQueryTemplateOptions);
+            resultNodes['appendTo'](templateDocument.createElement("div")); // Using "appendTo" forces jQuery/jQuery.tmpl to perform necessary cleanup work
+
+            jQueryInstance['fragments'] = {}; // Clear jQuery's fragment cache to avoid a memory leak after a large number of template renders
+            return resultNodes;
+        };
+
+        this['createJavaScriptEvaluatorBlock'] = function(script) {
+            return "{{ko_code ((function() { return " + script + " })()) }}";
+        };
+
+        this['addTemplate'] = function(templateName, templateMarkup) {
+            document.write("<script type='text/html' id='" + templateName + "'>" + templateMarkup + "<" + "/script>");
+        };
+
+        if (jQueryTmplVersion > 0) {
+            jQueryInstance['tmpl']['tag']['ko_code'] = {
+                open: "__.push($1 || '');"
+            };
+            jQueryInstance['tmpl']['tag']['ko_with'] = {
+                open: "with($1) {",
+                close: "} "
+            };
+        }
+    };
+
+    ko.jqueryTmplTemplateEngine.prototype = new ko.templateEngine();
+    ko.jqueryTmplTemplateEngine.prototype.constructor = ko.jqueryTmplTemplateEngine;
+
+    // Use this one by default *only if jquery.tmpl is referenced*
+    var jqueryTmplTemplateEngineInstance = new ko.jqueryTmplTemplateEngine();
+    if (jqueryTmplTemplateEngineInstance.jQueryTmplVersion > 0)
+        ko.setTemplateEngine(jqueryTmplTemplateEngineInstance);
+
+    ko.exportSymbol('jqueryTmplTemplateEngine', ko.jqueryTmplTemplateEngine);
+})();

demo/filebrowser-durandal-widget/lib/knockout/src/templating/native/nativeTemplateEngine.js

@@ -0,0 +1,23 @@
+ko.nativeTemplateEngine = function () {
+    this['allowTemplateRewriting'] = false;
+}
+
+ko.nativeTemplateEngine.prototype = new ko.templateEngine();
+ko.nativeTemplateEngine.prototype.constructor = ko.nativeTemplateEngine;
+ko.nativeTemplateEngine.prototype['renderTemplateSource'] = function (templateSource, bindingContext, options, templateDocument) {
+    var useNodesIfAvailable = !(ko.utils.ieVersion < 9), // IE<9 cloneNode doesn't work properly
+        templateNodesFunc = useNodesIfAvailable ? templateSource['nodes'] : null,
+        templateNodes = templateNodesFunc ? templateSource['nodes']() : null;
+
+    if (templateNodes) {
+        return ko.utils.makeArray(templateNodes.cloneNode(true).childNodes);
+    } else {
+        var templateText = templateSource['text']();
+        return ko.utils.parseHtmlFragment(templateText, templateDocument);
+    }
+};
+
+ko.nativeTemplateEngine.instance = new ko.nativeTemplateEngine();
+ko.setTemplateEngine(ko.nativeTemplateEngine.instance);
+
+ko.exportSymbol('nativeTemplateEngine', ko.nativeTemplateEngine);

demo/filebrowser-durandal-widget/lib/knockout/src/templating/templateEngine.js

@@ -0,0 +1,72 @@
+// If you want to make a custom template engine,
+//
+// [1] Inherit from this class (like ko.nativeTemplateEngine does)
+// [2] Override 'renderTemplateSource', supplying a function with this signature:
+//
+//        function (templateSource, bindingContext, options) {
+//            // - templateSource.text() is the text of the template you should render
+//            // - bindingContext.$data is the data you should pass into the template
+//            //   - you might also want to make bindingContext.$parent, bindingContext.$parents,
+//            //     and bindingContext.$root available in the template too
+//            // - options gives you access to any other properties set on "data-bind: { template: options }"
+//            // - templateDocument is the document object of the template
+//            //
+//            // Return value: an array of DOM nodes
+//        }
+//
+// [3] Override 'createJavaScriptEvaluatorBlock', supplying a function with this signature:
+//
+//        function (script) {
+//            // Return value: Whatever syntax means "Evaluate the JavaScript statement 'script' and output the result"
+//            //               For example, the jquery.tmpl template engine converts 'someScript' to '${ someScript }'
+//        }
+//
+//     This is only necessary if you want to allow data-bind attributes to reference arbitrary template variables.
+//     If you don't want to allow that, you can set the property 'allowTemplateRewriting' to false (like ko.nativeTemplateEngine does)
+//     and then you don't need to override 'createJavaScriptEvaluatorBlock'.
+
+ko.templateEngine = function () { };
+
+ko.templateEngine.prototype['renderTemplateSource'] = function (templateSource, bindingContext, options, templateDocument) {
+    throw new Error("Override renderTemplateSource");
+};
+
+ko.templateEngine.prototype['createJavaScriptEvaluatorBlock'] = function (script) {
+    throw new Error("Override createJavaScriptEvaluatorBlock");
+};
+
+ko.templateEngine.prototype['makeTemplateSource'] = function(template, templateDocument) {
+    // Named template
+    if (typeof template == "string") {
+        templateDocument = templateDocument || document;
+        var elem = templateDocument.getElementById(template);
+        if (!elem)
+            throw new Error("Cannot find template with ID " + template);
+        return new ko.templateSources.domElement(elem);
+    } else if ((template.nodeType == 1) || (template.nodeType == 8)) {
+        // Anonymous template
+        return new ko.templateSources.anonymousTemplate(template);
+    } else
+        throw new Error("Unknown template type: " + template);
+};
+
+ko.templateEngine.prototype['renderTemplate'] = function (template, bindingContext, options, templateDocument) {
+    var templateSource = this['makeTemplateSource'](template, templateDocument);
+    return this['renderTemplateSource'](templateSource, bindingContext, options, templateDocument);
+};
+
+ko.templateEngine.prototype['isTemplateRewritten'] = function (template, templateDocument) {
+    // Skip rewriting if requested
+    if (this['allowTemplateRewriting'] === false)
+        return true;
+    return this['makeTemplateSource'](template, templateDocument)['data']("isRewritten");
+};
+
+ko.templateEngine.prototype['rewriteTemplate'] = function (template, rewriterCallback, templateDocument) {
+    var templateSource = this['makeTemplateSource'](template, templateDocument);
+    var rewritten = rewriterCallback(templateSource['text']());
+    templateSource['text'](rewritten);
+    templateSource['data']("isRewritten", true);
+};
+
+ko.exportSymbol('templateEngine', ko.templateEngine);

demo/filebrowser-durandal-widget/lib/knockout/src/templating/templateRewriting.js

@@ -0,0 +1,66 @@
+
+ko.templateRewriting = (function () {
+    var memoizeDataBindingAttributeSyntaxRegex = /(<([a-z]+\d*)(?:\s+(?!data-bind\s*=\s*)[a-z0-9\-]+(?:=(?:\"[^\"]*\"|\'[^\']*\'|[^>]*))?)*\s+)data-bind\s*=\s*(["'])([\s\S]*?)\3/gi;
+    var memoizeVirtualContainerBindingSyntaxRegex = /<!--\s*ko\b\s*([\s\S]*?)\s*-->/g;
+
+    function validateDataBindValuesForRewriting(keyValueArray) {
+        var allValidators = ko.expressionRewriting.bindingRewriteValidators;
+        for (var i = 0; i < keyValueArray.length; i++) {
+            var key = keyValueArray[i]['key'];
+            if (allValidators.hasOwnProperty(key)) {
+                var validator = allValidators[key];
+
+                if (typeof validator === "function") {
+                    var possibleErrorMessage = validator(keyValueArray[i]['value']);
+                    if (possibleErrorMessage)
+                        throw new Error(possibleErrorMessage);
+                } else if (!validator) {
+                    throw new Error("This template engine does not support the '" + key + "' binding within its templates");
+                }
+            }
+        }
+    }
+
+    function constructMemoizedTagReplacement(dataBindAttributeValue, tagToRetain, nodeName, templateEngine) {
+        var dataBindKeyValueArray = ko.expressionRewriting.parseObjectLiteral(dataBindAttributeValue);
+        validateDataBindValuesForRewriting(dataBindKeyValueArray);
+        var rewrittenDataBindAttributeValue = ko.expressionRewriting.preProcessBindings(dataBindKeyValueArray, {'valueAccessors':true});
+
+        // For no obvious reason, Opera fails to evaluate rewrittenDataBindAttributeValue unless it's wrapped in an additional
+        // anonymous function, even though Opera's built-in debugger can evaluate it anyway. No other browser requires this
+        // extra indirection.
+        var applyBindingsToNextSiblingScript =
+            "ko.__tr_ambtns(function($context,$element){return(function(){return{ " + rewrittenDataBindAttributeValue + " } })()},'" + nodeName.toLowerCase() + "')";
+        return templateEngine['createJavaScriptEvaluatorBlock'](applyBindingsToNextSiblingScript) + tagToRetain;
+    }
+
+    return {
+        ensureTemplateIsRewritten: function (template, templateEngine, templateDocument) {
+            if (!templateEngine['isTemplateRewritten'](template, templateDocument))
+                templateEngine['rewriteTemplate'](template, function (htmlString) {
+                    return ko.templateRewriting.memoizeBindingAttributeSyntax(htmlString, templateEngine);
+                }, templateDocument);
+        },
+
+        memoizeBindingAttributeSyntax: function (htmlString, templateEngine) {
+            return htmlString.replace(memoizeDataBindingAttributeSyntaxRegex, function () {
+                return constructMemoizedTagReplacement(/* dataBindAttributeValue: */ arguments[4], /* tagToRetain: */ arguments[1], /* nodeName: */ arguments[2], templateEngine);
+            }).replace(memoizeVirtualContainerBindingSyntaxRegex, function() {
+                return constructMemoizedTagReplacement(/* dataBindAttributeValue: */ arguments[1], /* tagToRetain: */ "<!-- ko -->", /* nodeName: */ "#comment", templateEngine);
+            });
+        },
+
+        applyMemoizedBindingsToNextSibling: function (bindings, nodeName) {
+            return ko.memoization.memoize(function (domNode, bindingContext) {
+                var nodeToBind = domNode.nextSibling;
+                if (nodeToBind && nodeToBind.nodeName.toLowerCase() === nodeName) {
+                    ko.applyBindingAccessorsToNode(nodeToBind, bindings, bindingContext);
+                }
+            });
+        }
+    }
+})();
+
+
+// Exported only because it has to be referenced by string lookup from within rewritten template
+ko.exportSymbol('__tr_ambtns', ko.templateRewriting.applyMemoizedBindingsToNextSibling);

demo/filebrowser-durandal-widget/lib/knockout/src/templating/templateSources.js

@@ -0,0 +1,123 @@
+(function() {
+    // A template source represents a read/write way of accessing a template. This is to eliminate the need for template loading/saving
+    // logic to be duplicated in every template engine (and means they can all work with anonymous templates, etc.)
+    //
+    // Two are provided by default:
+    //  1. ko.templateSources.domElement       - reads/writes the text content of an arbitrary DOM element
+    //  2. ko.templateSources.anonymousElement - uses ko.utils.domData to read/write text *associated* with the DOM element, but
+    //                                           without reading/writing the actual element text content, since it will be overwritten
+    //                                           with the rendered template output.
+    // You can implement your own template source if you want to fetch/store templates somewhere other than in DOM elements.
+    // Template sources need to have the following functions:
+    //   text() 			- returns the template text from your storage location
+    //   text(value)		- writes the supplied template text to your storage location
+    //   data(key)			- reads values stored using data(key, value) - see below
+    //   data(key, value)	- associates "value" with this template and the key "key". Is used to store information like "isRewritten".
+    //
+    // Optionally, template sources can also have the following functions:
+    //   nodes()            - returns a DOM element containing the nodes of this template, where available
+    //   nodes(value)       - writes the given DOM element to your storage location
+    // If a DOM element is available for a given template source, template engines are encouraged to use it in preference over text()
+    // for improved speed. However, all templateSources must supply text() even if they don't supply nodes().
+    //
+    // Once you've implemented a templateSource, make your template engine use it by subclassing whatever template engine you were
+    // using and overriding "makeTemplateSource" to return an instance of your custom template source.
+
+    ko.templateSources = {};
+
+    // ---- ko.templateSources.domElement -----
+
+    // template types
+    var templateScript = 1,
+        templateTextArea = 2,
+        templateTemplate = 3,
+        templateElement = 4;
+
+    ko.templateSources.domElement = function(element) {
+        this.domElement = element;
+
+        if (element) {
+            var tagNameLower = ko.utils.tagNameLower(element);
+            this.templateType =
+                tagNameLower === "script" ? templateScript :
+                tagNameLower === "textarea" ? templateTextArea :
+                    // For browsers with proper <template> element support, where the .content property gives a document fragment
+                tagNameLower == "template" && element.content && element.content.nodeType === 11 ? templateTemplate :
+                templateElement;
+        }
+    }
+
+    ko.templateSources.domElement.prototype['text'] = function(/* valueToWrite */) {
+        var elemContentsProperty = this.templateType === templateScript ? "text"
+                                 : this.templateType === templateTextArea ? "value"
+                                 : "innerHTML";
+
+        if (arguments.length == 0) {
+            return this.domElement[elemContentsProperty];
+        } else {
+            var valueToWrite = arguments[0];
+            if (elemContentsProperty === "innerHTML")
+                ko.utils.setHtml(this.domElement, valueToWrite);
+            else
+                this.domElement[elemContentsProperty] = valueToWrite;
+        }
+    };
+
+    var dataDomDataPrefix = ko.utils.domData.nextKey() + "_";
+    ko.templateSources.domElement.prototype['data'] = function(key /*, valueToWrite */) {
+        if (arguments.length === 1) {
+            return ko.utils.domData.get(this.domElement, dataDomDataPrefix + key);
+        } else {
+            ko.utils.domData.set(this.domElement, dataDomDataPrefix + key, arguments[1]);
+        }
+    };
+
+    var templatesDomDataKey = ko.utils.domData.nextKey();
+    function getTemplateDomData(element) {
+        return ko.utils.domData.get(element, templatesDomDataKey) || {};
+    }
+    function setTemplateDomData(element, data) {
+        ko.utils.domData.set(element, templatesDomDataKey, data);
+    }
+
+    ko.templateSources.domElement.prototype['nodes'] = function(/* valueToWrite */) {
+        var element = this.domElement;
+        if (arguments.length == 0) {
+            var templateData = getTemplateDomData(element),
+                containerData = templateData.containerData;
+            return containerData || (
+                this.templateType === templateTemplate ? element.content :
+                this.templateType === templateElement ? element :
+                undefined);
+        } else {
+            var valueToWrite = arguments[0];
+            setTemplateDomData(element, {containerData: valueToWrite});
+        }
+    };
+
+    // ---- ko.templateSources.anonymousTemplate -----
+    // Anonymous templates are normally saved/retrieved as DOM nodes through "nodes".
+    // For compatibility, you can also read "text"; it will be serialized from the nodes on demand.
+    // Writing to "text" is still supported, but then the template data will not be available as DOM nodes.
+
+    ko.templateSources.anonymousTemplate = function(element) {
+        this.domElement = element;
+    }
+    ko.templateSources.anonymousTemplate.prototype = new ko.templateSources.domElement();
+    ko.templateSources.anonymousTemplate.prototype.constructor = ko.templateSources.anonymousTemplate;
+    ko.templateSources.anonymousTemplate.prototype['text'] = function(/* valueToWrite */) {
+        if (arguments.length == 0) {
+            var templateData = getTemplateDomData(this.domElement);
+            if (templateData.textData === undefined && templateData.containerData)
+                templateData.textData = templateData.containerData.innerHTML;
+            return templateData.textData;
+        } else {
+            var valueToWrite = arguments[0];
+            setTemplateDomData(this.domElement, {textData: valueToWrite});
+        }
+    };
+
+    ko.exportSymbol('templateSources', ko.templateSources);
+    ko.exportSymbol('templateSources.domElement', ko.templateSources.domElement);
+    ko.exportSymbol('templateSources.anonymousTemplate', ko.templateSources.anonymousTemplate);
+})();

demo/filebrowser-durandal-widget/lib/knockout/src/templating/templating.js

@@ -0,0 +1,301 @@
+(function () {
+    var _templateEngine;
+    ko.setTemplateEngine = function (templateEngine) {
+        if ((templateEngine != undefined) && !(templateEngine instanceof ko.templateEngine))
+            throw new Error("templateEngine must inherit from ko.templateEngine");
+        _templateEngine = templateEngine;
+    }
+
+    function invokeForEachNodeInContinuousRange(firstNode, lastNode, action) {
+        var node, nextInQueue = firstNode, firstOutOfRangeNode = ko.virtualElements.nextSibling(lastNode);
+        while (nextInQueue && ((node = nextInQueue) !== firstOutOfRangeNode)) {
+            nextInQueue = ko.virtualElements.nextSibling(node);
+            action(node, nextInQueue);
+        }
+    }
+
+    function activateBindingsOnContinuousNodeArray(continuousNodeArray, bindingContext) {
+        // To be used on any nodes that have been rendered by a template and have been inserted into some parent element
+        // Walks through continuousNodeArray (which *must* be continuous, i.e., an uninterrupted sequence of sibling nodes, because
+        // the algorithm for walking them relies on this), and for each top-level item in the virtual-element sense,
+        // (1) Does a regular "applyBindings" to associate bindingContext with this node and to activate any non-memoized bindings
+        // (2) Unmemoizes any memos in the DOM subtree (e.g., to activate bindings that had been memoized during template rewriting)
+
+        if (continuousNodeArray.length) {
+            var firstNode = continuousNodeArray[0],
+                lastNode = continuousNodeArray[continuousNodeArray.length - 1],
+                parentNode = firstNode.parentNode,
+                provider = ko.bindingProvider['instance'],
+                preprocessNode = provider['preprocessNode'];
+
+            if (preprocessNode) {
+                invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node, nextNodeInRange) {
+                    var nodePreviousSibling = node.previousSibling;
+                    var newNodes = preprocessNode.call(provider, node);
+                    if (newNodes) {
+                        if (node === firstNode)
+                            firstNode = newNodes[0] || nextNodeInRange;
+                        if (node === lastNode)
+                            lastNode = newNodes[newNodes.length - 1] || nodePreviousSibling;
+                    }
+                });
+
+                // Because preprocessNode can change the nodes, including the first and last nodes, update continuousNodeArray to match.
+                // We need the full set, including inner nodes, because the unmemoize step might remove the first node (and so the real
+                // first node needs to be in the array).
+                continuousNodeArray.length = 0;
+                if (!firstNode) { // preprocessNode might have removed all the nodes, in which case there's nothing left to do
+                    return;
+                }
+                if (firstNode === lastNode) {
+                    continuousNodeArray.push(firstNode);
+                } else {
+                    continuousNodeArray.push(firstNode, lastNode);
+                    ko.utils.fixUpContinuousNodeArray(continuousNodeArray, parentNode);
+                }
+            }
+
+            // Need to applyBindings *before* unmemoziation, because unmemoization might introduce extra nodes (that we don't want to re-bind)
+            // whereas a regular applyBindings won't introduce new memoized nodes
+            invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node) {
+                if (node.nodeType === 1 || node.nodeType === 8)
+                    ko.applyBindings(bindingContext, node);
+            });
+            invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node) {
+                if (node.nodeType === 1 || node.nodeType === 8)
+                    ko.memoization.unmemoizeDomNodeAndDescendants(node, [bindingContext]);
+            });
+
+            // Make sure any changes done by applyBindings or unmemoize are reflected in the array
+            ko.utils.fixUpContinuousNodeArray(continuousNodeArray, parentNode);
+        }
+    }
+
+    function getFirstNodeFromPossibleArray(nodeOrNodeArray) {
+        return nodeOrNodeArray.nodeType ? nodeOrNodeArray
+                                        : nodeOrNodeArray.length > 0 ? nodeOrNodeArray[0]
+                                        : null;
+    }
+
+    function executeTemplate(targetNodeOrNodeArray, renderMode, template, bindingContext, options) {
+        options = options || {};
+        var firstTargetNode = targetNodeOrNodeArray && getFirstNodeFromPossibleArray(targetNodeOrNodeArray);
+        var templateDocument = (firstTargetNode || template || {}).ownerDocument;
+        var templateEngineToUse = (options['templateEngine'] || _templateEngine);
+        ko.templateRewriting.ensureTemplateIsRewritten(template, templateEngineToUse, templateDocument);
+        var renderedNodesArray = templateEngineToUse['renderTemplate'](template, bindingContext, options, templateDocument);
+
+        // Loosely check result is an array of DOM nodes
+        if ((typeof renderedNodesArray.length != "number") || (renderedNodesArray.length > 0 && typeof renderedNodesArray[0].nodeType != "number"))
+            throw new Error("Template engine must return an array of DOM nodes");
+
+        var haveAddedNodesToParent = false;
+        switch (renderMode) {
+            case "replaceChildren":
+                ko.virtualElements.setDomNodeChildren(targetNodeOrNodeArray, renderedNodesArray);
+                haveAddedNodesToParent = true;
+                break;
+            case "replaceNode":
+                ko.utils.replaceDomNodes(targetNodeOrNodeArray, renderedNodesArray);
+                haveAddedNodesToParent = true;
+                break;
+            case "ignoreTargetNode": break;
+            default:
+                throw new Error("Unknown renderMode: " + renderMode);
+        }
+
+        if (haveAddedNodesToParent) {
+            activateBindingsOnContinuousNodeArray(renderedNodesArray, bindingContext);
+            if (options['afterRender'])
+                ko.dependencyDetection.ignore(options['afterRender'], null, [renderedNodesArray, bindingContext['$data']]);
+        }
+
+        return renderedNodesArray;
+    }
+
+    function resolveTemplateName(template, data, context) {
+        // The template can be specified as:
+        if (ko.isObservable(template)) {
+            // 1. An observable, with string value
+            return template();
+        } else if (typeof template === 'function') {
+            // 2. A function of (data, context) returning a string
+            return template(data, context);
+        } else {
+            // 3. A string
+            return template;
+        }
+    }
+
+    ko.renderTemplate = function (template, dataOrBindingContext, options, targetNodeOrNodeArray, renderMode) {
+        options = options || {};
+        if ((options['templateEngine'] || _templateEngine) == undefined)
+            throw new Error("Set a template engine before calling renderTemplate");
+        renderMode = renderMode || "replaceChildren";
+
+        if (targetNodeOrNodeArray) {
+            var firstTargetNode = getFirstNodeFromPossibleArray(targetNodeOrNodeArray);
+
+            var whenToDispose = function () { return (!firstTargetNode) || !ko.utils.domNodeIsAttachedToDocument(firstTargetNode); }; // Passive disposal (on next evaluation)
+            var activelyDisposeWhenNodeIsRemoved = (firstTargetNode && renderMode == "replaceNode") ? firstTargetNode.parentNode : firstTargetNode;
+
+            return ko.dependentObservable( // So the DOM is automatically updated when any dependency changes
+                function () {
+                    // Ensure we've got a proper binding context to work with
+                    var bindingContext = (dataOrBindingContext && (dataOrBindingContext instanceof ko.bindingContext))
+                        ? dataOrBindingContext
+                        : new ko.bindingContext(dataOrBindingContext, null, null, null, { "exportDependencies": true });
+
+                    var templateName = resolveTemplateName(template, bindingContext['$data'], bindingContext),
+                        renderedNodesArray = executeTemplate(targetNodeOrNodeArray, renderMode, templateName, bindingContext, options);
+
+                    if (renderMode == "replaceNode") {
+                        targetNodeOrNodeArray = renderedNodesArray;
+                        firstTargetNode = getFirstNodeFromPossibleArray(targetNodeOrNodeArray);
+                    }
+                },
+                null,
+                { disposeWhen: whenToDispose, disposeWhenNodeIsRemoved: activelyDisposeWhenNodeIsRemoved }
+            );
+        } else {
+            // We don't yet have a DOM node to evaluate, so use a memo and render the template later when there is a DOM node
+            return ko.memoization.memoize(function (domNode) {
+                ko.renderTemplate(template, dataOrBindingContext, options, domNode, "replaceNode");
+            });
+        }
+    };
+
+    ko.renderTemplateForEach = function (template, arrayOrObservableArray, options, targetNode, parentBindingContext) {
+        // Since setDomNodeChildrenFromArrayMapping always calls executeTemplateForArrayItem and then
+        // activateBindingsCallback for added items, we can store the binding context in the former to use in the latter.
+        var arrayItemContext;
+
+        // This will be called by setDomNodeChildrenFromArrayMapping to get the nodes to add to targetNode
+        var executeTemplateForArrayItem = function (arrayValue, index) {
+            // Support selecting template as a function of the data being rendered
+            arrayItemContext = parentBindingContext['createChildContext'](arrayValue, options['as'], function(context) {
+                context['$index'] = index;
+            });
+
+            var templateName = resolveTemplateName(template, arrayValue, arrayItemContext);
+            return executeTemplate(null, "ignoreTargetNode", templateName, arrayItemContext, options);
+        }
+
+        // This will be called whenever setDomNodeChildrenFromArrayMapping has added nodes to targetNode
+        var activateBindingsCallback = function(arrayValue, addedNodesArray, index) {
+            activateBindingsOnContinuousNodeArray(addedNodesArray, arrayItemContext);
+            if (options['afterRender'])
+                options['afterRender'](addedNodesArray, arrayValue);
+
+            // release the "cache" variable, so that it can be collected by
+            // the GC when its value isn't used from within the bindings anymore.
+            arrayItemContext = null;
+        };
+
+        return ko.dependentObservable(function () {
+            var unwrappedArray = ko.utils.unwrapObservable(arrayOrObservableArray) || [];
+            if (typeof unwrappedArray.length == "undefined") // Coerce single value into array
+                unwrappedArray = [unwrappedArray];
+
+            // Filter out any entries marked as destroyed
+            var filteredArray = ko.utils.arrayFilter(unwrappedArray, function(item) {
+                return options['includeDestroyed'] || item === undefined || item === null || !ko.utils.unwrapObservable(item['_destroy']);
+            });
+
+            // Call setDomNodeChildrenFromArrayMapping, ignoring any observables unwrapped within (most likely from a callback function).
+            // If the array items are observables, though, they will be unwrapped in executeTemplateForArrayItem and managed within setDomNodeChildrenFromArrayMapping.
+            ko.dependencyDetection.ignore(ko.utils.setDomNodeChildrenFromArrayMapping, null, [targetNode, filteredArray, executeTemplateForArrayItem, options, activateBindingsCallback]);
+
+        }, null, { disposeWhenNodeIsRemoved: targetNode });
+    };
+
+    var templateComputedDomDataKey = ko.utils.domData.nextKey();
+    function disposeOldComputedAndStoreNewOne(element, newComputed) {
+        var oldComputed = ko.utils.domData.get(element, templateComputedDomDataKey);
+        if (oldComputed && (typeof(oldComputed.dispose) == 'function'))
+            oldComputed.dispose();
+        ko.utils.domData.set(element, templateComputedDomDataKey, (newComputed && newComputed.isActive()) ? newComputed : undefined);
+    }
+
+    ko.bindingHandlers['template'] = {
+        'init': function(element, valueAccessor) {
+            // Support anonymous templates
+            var bindingValue = ko.utils.unwrapObservable(valueAccessor());
+            if (typeof bindingValue == "string" || bindingValue['name']) {
+                // It's a named template - clear the element
+                ko.virtualElements.emptyNode(element);
+            } else if ('nodes' in bindingValue) {
+                // We've been given an array of DOM nodes. Save them as the template source.
+                // There is no known use case for the node array being an observable array (if the output
+                // varies, put that behavior *into* your template - that's what templates are for), and
+                // the implementation would be a mess, so assert that it's not observable.
+                var nodes = bindingValue['nodes'] || [];
+                if (ko.isObservable(nodes)) {
+                    throw new Error('The "nodes" option must be a plain, non-observable array.');
+                }
+                var container = ko.utils.moveCleanedNodesToContainerElement(nodes); // This also removes the nodes from their current parent
+                new ko.templateSources.anonymousTemplate(element)['nodes'](container);
+            } else {
+                // It's an anonymous template - store the element contents, then clear the element
+                var templateNodes = ko.virtualElements.childNodes(element),
+                    container = ko.utils.moveCleanedNodesToContainerElement(templateNodes); // This also removes the nodes from their current parent
+                new ko.templateSources.anonymousTemplate(element)['nodes'](container);
+            }
+            return { 'controlsDescendantBindings': true };
+        },
+        'update': function (element, valueAccessor, allBindings, viewModel, bindingContext) {
+            var value = valueAccessor(),
+                options = ko.utils.unwrapObservable(value),
+                shouldDisplay = true,
+                templateComputed = null,
+                templateName;
+
+            if (typeof options == "string") {
+                templateName = value;
+                options = {};
+            } else {
+                templateName = options['name'];
+
+                // Support "if"/"ifnot" conditions
+                if ('if' in options)
+                    shouldDisplay = ko.utils.unwrapObservable(options['if']);
+                if (shouldDisplay && 'ifnot' in options)
+                    shouldDisplay = !ko.utils.unwrapObservable(options['ifnot']);
+            }
+
+            if ('foreach' in options) {
+                // Render once for each data point (treating data set as empty if shouldDisplay==false)
+                var dataArray = (shouldDisplay && options['foreach']) || [];
+                templateComputed = ko.renderTemplateForEach(templateName || element, dataArray, options, element, bindingContext);
+            } else if (!shouldDisplay) {
+                ko.virtualElements.emptyNode(element);
+            } else {
+                // Render once for this single data point (or use the viewModel if no data was provided)
+                var innerBindingContext = ('data' in options) ?
+                    bindingContext.createStaticChildContext(options['data'], options['as']) :  // Given an explitit 'data' value, we create a child binding context for it
+                    bindingContext;                                                        // Given no explicit 'data' value, we retain the same binding context
+                templateComputed = ko.renderTemplate(templateName || element, innerBindingContext, options, element);
+            }
+
+            // It only makes sense to have a single template computed per element (otherwise which one should have its output displayed?)
+            disposeOldComputedAndStoreNewOne(element, templateComputed);
+        }
+    };
+
+    // Anonymous templates can't be rewritten. Give a nice error message if you try to do it.
+    ko.expressionRewriting.bindingRewriteValidators['template'] = function(bindingValue) {
+        var parsedBindingValue = ko.expressionRewriting.parseObjectLiteral(bindingValue);
+
+        if ((parsedBindingValue.length == 1) && parsedBindingValue[0]['unknown'])
+            return null; // It looks like a string literal, not an object literal, so treat it as a named template (which is allowed for rewriting)
+
+        if (ko.expressionRewriting.keyValueArrayContainsKey(parsedBindingValue, "name"))
+            return null; // Named templates can be rewritten, so return "no error"
+        return "This template engine does not support anonymous templates nested within its templates";
+    };
+
+    ko.virtualElements.allowedBindings['template'] = true;
+})();
+
+ko.exportSymbol('setTemplateEngine', ko.setTemplateEngine);
+ko.exportSymbol('renderTemplate', ko.renderTemplate);

demo/filebrowser-durandal-widget/lib/knockout/src/utils.domData.js

@@ -0,0 +1,50 @@
+
+ko.utils.domData = new (function () {
+    var uniqueId = 0;
+    var dataStoreKeyExpandoPropertyName = "__ko__" + (new Date).getTime();
+    var dataStore = {};
+
+    function getAll(node, createIfNotFound) {
+        var dataStoreKey = node[dataStoreKeyExpandoPropertyName];
+        var hasExistingDataStore = dataStoreKey && (dataStoreKey !== "null") && dataStore[dataStoreKey];
+        if (!hasExistingDataStore) {
+            if (!createIfNotFound)
+                return undefined;
+            dataStoreKey = node[dataStoreKeyExpandoPropertyName] = "ko" + uniqueId++;
+            dataStore[dataStoreKey] = {};
+        }
+        return dataStore[dataStoreKey];
+    }
+
+    return {
+        get: function (node, key) {
+            var allDataForNode = getAll(node, false);
+            return allDataForNode === undefined ? undefined : allDataForNode[key];
+        },
+        set: function (node, key, value) {
+            if (value === undefined) {
+                // Make sure we don't actually create a new domData key if we are actually deleting a value
+                if (getAll(node, false) === undefined)
+                    return;
+            }
+            var allDataForNode = getAll(node, true);
+            allDataForNode[key] = value;
+        },
+        clear: function (node) {
+            var dataStoreKey = node[dataStoreKeyExpandoPropertyName];
+            if (dataStoreKey) {
+                delete dataStore[dataStoreKey];
+                node[dataStoreKeyExpandoPropertyName] = null;
+                return true; // Exposing "did clean" flag purely so specs can infer whether things have been cleaned up as intended
+            }
+            return false;
+        },
+
+        nextKey: function () {
+            return (uniqueId++) + dataStoreKeyExpandoPropertyName;
+        }
+    };
+})();
+
+ko.exportSymbol('utils.domData', ko.utils.domData);
+ko.exportSymbol('utils.domData.clear', ko.utils.domData.clear); // Exporting only so specs can clear up after themselves fully

demo/filebrowser-durandal-widget/lib/knockout/src/utils.domManipulation.js

@@ -0,0 +1,129 @@
+(function () {
+    var none = [0, "", ""],
+        table = [1, "<table>", "</table>"],
+        tbody = [2, "<table><tbody>", "</tbody></table>"],
+        tr = [3, "<table><tbody><tr>", "</tr></tbody></table>"],
+        select = [1, "<select multiple='multiple'>", "</select>"],
+        lookup = {
+            'thead': table,
+            'tbody': table,
+            'tfoot': table,
+            'tr': tbody,
+            'td': tr,
+            'th': tr,
+            'option': select,
+            'optgroup': select
+        },
+
+        // This is needed for old IE if you're *not* using either jQuery or innerShiv. Doesn't affect other cases.
+        mayRequireCreateElementHack = ko.utils.ieVersion <= 8;
+
+    function getWrap(tags) {
+        var m = tags.match(/^<([a-z]+)[ >]/);
+        return (m && lookup[m[1]]) || none;
+    }
+
+    function simpleHtmlParse(html, documentContext) {
+        documentContext || (documentContext = document);
+        var windowContext = documentContext['parentWindow'] || documentContext['defaultView'] || window;
+
+        // Based on jQuery's "clean" function, but only accounting for table-related elements.
+        // If you have referenced jQuery, this won't be used anyway - KO will use jQuery's "clean" function directly
+
+        // Note that there's still an issue in IE < 9 whereby it will discard comment nodes that are the first child of
+        // a descendant node. For example: "<div><!-- mycomment -->abc</div>" will get parsed as "<div>abc</div>"
+        // This won't affect anyone who has referenced jQuery, and there's always the workaround of inserting a dummy node
+        // (possibly a text node) in front of the comment. So, KO does not attempt to workaround this IE issue automatically at present.
+
+        // Trim whitespace, otherwise indexOf won't work as expected
+        var tags = ko.utils.stringTrim(html).toLowerCase(), div = documentContext.createElement("div"),
+            wrap = getWrap(tags),
+            depth = wrap[0];
+
+        // Go to html and back, then peel off extra wrappers
+        // Note that we always prefix with some dummy text, because otherwise, IE<9 will strip out leading comment nodes in descendants. Total madness.
+        var markup = "ignored<div>" + wrap[1] + html + wrap[2] + "</div>";
+        if (typeof windowContext['innerShiv'] == "function") {
+            // Note that innerShiv is deprecated in favour of html5shiv. We should consider adding
+            // support for html5shiv (except if no explicit support is needed, e.g., if html5shiv
+            // somehow shims the native APIs so it just works anyway)
+            div.appendChild(windowContext['innerShiv'](markup));
+        } else {
+            if (mayRequireCreateElementHack) {
+                // The document.createElement('my-element') trick to enable custom elements in IE6-8
+                // only works if we assign innerHTML on an element associated with that document.
+                documentContext.appendChild(div);
+            }
+
+            div.innerHTML = markup;
+
+            if (mayRequireCreateElementHack) {
+                div.parentNode.removeChild(div);
+            }
+        }
+
+        // Move to the right depth
+        while (depth--)
+            div = div.lastChild;
+
+        return ko.utils.makeArray(div.lastChild.childNodes);
+    }
+
+    function jQueryHtmlParse(html, documentContext) {
+        // jQuery's "parseHTML" function was introduced in jQuery 1.8.0 and is a documented public API.
+        if (jQueryInstance['parseHTML']) {
+            return jQueryInstance['parseHTML'](html, documentContext) || []; // Ensure we always return an array and never null
+        } else {
+            // For jQuery < 1.8.0, we fall back on the undocumented internal "clean" function.
+            var elems = jQueryInstance['clean']([html], documentContext);
+
+            // As of jQuery 1.7.1, jQuery parses the HTML by appending it to some dummy parent nodes held in an in-memory document fragment.
+            // Unfortunately, it never clears the dummy parent nodes from the document fragment, so it leaks memory over time.
+            // Fix this by finding the top-most dummy parent element, and detaching it from its owner fragment.
+            if (elems && elems[0]) {
+                // Find the top-most parent element that's a direct child of a document fragment
+                var elem = elems[0];
+                while (elem.parentNode && elem.parentNode.nodeType !== 11 /* i.e., DocumentFragment */)
+                    elem = elem.parentNode;
+                // ... then detach it
+                if (elem.parentNode)
+                    elem.parentNode.removeChild(elem);
+            }
+
+            return elems;
+        }
+    }
+
+    ko.utils.parseHtmlFragment = function(html, documentContext) {
+        return jQueryInstance ?
+            jQueryHtmlParse(html, documentContext) :   // As below, benefit from jQuery's optimisations where possible
+            simpleHtmlParse(html, documentContext);  // ... otherwise, this simple logic will do in most common cases.
+    };
+
+    ko.utils.setHtml = function(node, html) {
+        ko.utils.emptyDomNode(node);
+
+        // There's no legitimate reason to display a stringified observable without unwrapping it, so we'll unwrap it
+        html = ko.utils.unwrapObservable(html);
+
+        if ((html !== null) && (html !== undefined)) {
+            if (typeof html != 'string')
+                html = html.toString();
+
+            // jQuery contains a lot of sophisticated code to parse arbitrary HTML fragments,
+            // for example <tr> elements which are not normally allowed to exist on their own.
+            // If you've referenced jQuery we'll use that rather than duplicating its code.
+            if (jQueryInstance) {
+                jQueryInstance(node)['html'](html);
+            } else {
+                // ... otherwise, use KO's own parsing logic.
+                var parsedNodes = ko.utils.parseHtmlFragment(html, node.ownerDocument);
+                for (var i = 0; i < parsedNodes.length; i++)
+                    node.appendChild(parsedNodes[i]);
+            }
+        }
+    };
+})();
+
+ko.exportSymbol('utils.parseHtmlFragment', ko.utils.parseHtmlFragment);
+ko.exportSymbol('utils.setHtml', ko.utils.setHtml);

demo/filebrowser-durandal-widget/lib/knockout/src/utils.domNodeDisposal.js

@@ -0,0 +1,103 @@
+
+ko.utils.domNodeDisposal = new (function () {
+    var domDataKey = ko.utils.domData.nextKey();
+    var cleanableNodeTypes = { 1: true, 8: true, 9: true };       // Element, Comment, Document
+    var cleanableNodeTypesWithDescendants = { 1: true, 9: true }; // Element, Document
+
+    function getDisposeCallbacksCollection(node, createIfNotFound) {
+        var allDisposeCallbacks = ko.utils.domData.get(node, domDataKey);
+        if ((allDisposeCallbacks === undefined) && createIfNotFound) {
+            allDisposeCallbacks = [];
+            ko.utils.domData.set(node, domDataKey, allDisposeCallbacks);
+        }
+        return allDisposeCallbacks;
+    }
+    function destroyCallbacksCollection(node) {
+        ko.utils.domData.set(node, domDataKey, undefined);
+    }
+
+    function cleanSingleNode(node) {
+        // Run all the dispose callbacks
+        var callbacks = getDisposeCallbacksCollection(node, false);
+        if (callbacks) {
+            callbacks = callbacks.slice(0); // Clone, as the array may be modified during iteration (typically, callbacks will remove themselves)
+            for (var i = 0; i < callbacks.length; i++)
+                callbacks[i](node);
+        }
+
+        // Erase the DOM data
+        ko.utils.domData.clear(node);
+
+        // Perform cleanup needed by external libraries (currently only jQuery, but can be extended)
+        ko.utils.domNodeDisposal["cleanExternalData"](node);
+
+        // Clear any immediate-child comment nodes, as these wouldn't have been found by
+        // node.getElementsByTagName("*") in cleanNode() (comment nodes aren't elements)
+        if (cleanableNodeTypesWithDescendants[node.nodeType])
+            cleanImmediateCommentTypeChildren(node);
+    }
+
+    function cleanImmediateCommentTypeChildren(nodeWithChildren) {
+        var child, nextChild = nodeWithChildren.firstChild;
+        while (child = nextChild) {
+            nextChild = child.nextSibling;
+            if (child.nodeType === 8)
+                cleanSingleNode(child);
+        }
+    }
+
+    return {
+        addDisposeCallback : function(node, callback) {
+            if (typeof callback != "function")
+                throw new Error("Callback must be a function");
+            getDisposeCallbacksCollection(node, true).push(callback);
+        },
+
+        removeDisposeCallback : function(node, callback) {
+            var callbacksCollection = getDisposeCallbacksCollection(node, false);
+            if (callbacksCollection) {
+                ko.utils.arrayRemoveItem(callbacksCollection, callback);
+                if (callbacksCollection.length == 0)
+                    destroyCallbacksCollection(node);
+            }
+        },
+
+        cleanNode : function(node) {
+            // First clean this node, where applicable
+            if (cleanableNodeTypes[node.nodeType]) {
+                cleanSingleNode(node);
+
+                // ... then its descendants, where applicable
+                if (cleanableNodeTypesWithDescendants[node.nodeType]) {
+                    // Clone the descendants list in case it changes during iteration
+                    var descendants = [];
+                    ko.utils.arrayPushAll(descendants, node.getElementsByTagName("*"));
+                    for (var i = 0, j = descendants.length; i < j; i++)
+                        cleanSingleNode(descendants[i]);
+                }
+            }
+            return node;
+        },
+
+        removeNode : function(node) {
+            ko.cleanNode(node);
+            if (node.parentNode)
+                node.parentNode.removeChild(node);
+        },
+
+        "cleanExternalData" : function (node) {
+            // Special support for jQuery here because it's so commonly used.
+            // Many jQuery plugins (including jquery.tmpl) store data using jQuery's equivalent of domData
+            // so notify it to tear down any resources associated with the node & descendants here.
+            if (jQueryInstance && (typeof jQueryInstance['cleanData'] == "function"))
+                jQueryInstance['cleanData']([node]);
+        }
+    };
+})();
+ko.cleanNode = ko.utils.domNodeDisposal.cleanNode; // Shorthand name for convenience
+ko.removeNode = ko.utils.domNodeDisposal.removeNode; // Shorthand name for convenience
+ko.exportSymbol('cleanNode', ko.cleanNode);
+ko.exportSymbol('removeNode', ko.removeNode);
+ko.exportSymbol('utils.domNodeDisposal', ko.utils.domNodeDisposal);
+ko.exportSymbol('utils.domNodeDisposal.addDisposeCallback', ko.utils.domNodeDisposal.addDisposeCallback);
+ko.exportSymbol('utils.domNodeDisposal.removeDisposeCallback', ko.utils.domNodeDisposal.removeDisposeCallback);

demo/filebrowser-durandal-widget/lib/knockout/src/utils.js

@@ -0,0 +1,625 @@
+ko.utils = (function () {
+    function objectForEach(obj, action) {
+        for (var prop in obj) {
+            if (obj.hasOwnProperty(prop)) {
+                action(prop, obj[prop]);
+            }
+        }
+    }
+
+    function extend(target, source) {
+        if (source) {
+            for(var prop in source) {
+                if(source.hasOwnProperty(prop)) {
+                    target[prop] = source[prop];
+                }
+            }
+        }
+        return target;
+    }
+
+    function setPrototypeOf(obj, proto) {
+        obj.__proto__ = proto;
+        return obj;
+    }
+
+    var canSetPrototype = ({ __proto__: [] } instanceof Array);
+    var canUseSymbols = !DEBUG && typeof Symbol === 'function';
+
+    // Represent the known event types in a compact way, then at runtime transform it into a hash with event name as key (for fast lookup)
+    var knownEvents = {}, knownEventTypesByEventName = {};
+    var keyEventTypeName = (navigator && /Firefox\/2/i.test(navigator.userAgent)) ? 'KeyboardEvent' : 'UIEvents';
+    knownEvents[keyEventTypeName] = ['keyup', 'keydown', 'keypress'];
+    knownEvents['MouseEvents'] = ['click', 'dblclick', 'mousedown', 'mouseup', 'mousemove', 'mouseover', 'mouseout', 'mouseenter', 'mouseleave'];
+    objectForEach(knownEvents, function(eventType, knownEventsForType) {
+        if (knownEventsForType.length) {
+            for (var i = 0, j = knownEventsForType.length; i < j; i++)
+                knownEventTypesByEventName[knownEventsForType[i]] = eventType;
+        }
+    });
+    var eventsThatMustBeRegisteredUsingAttachEvent = { 'propertychange': true }; // Workaround for an IE9 issue - https://github.com/SteveSanderson/knockout/issues/406
+
+    // Detect IE versions for bug workarounds (uses IE conditionals, not UA string, for robustness)
+    // Note that, since IE 10 does not support conditional comments, the following logic only detects IE < 10.
+    // Currently this is by design, since IE 10+ behaves correctly when treated as a standard browser.
+    // If there is a future need to detect specific versions of IE10+, we will amend this.
+    var ieVersion = document && (function() {
+        var version = 3, div = document.createElement('div'), iElems = div.getElementsByTagName('i');
+
+        // Keep constructing conditional HTML blocks until we hit one that resolves to an empty fragment
+        while (
+            div.innerHTML = '<!--[if gt IE ' + (++version) + ']><i></i><![endif]-->',
+            iElems[0]
+        ) {}
+        return version > 4 ? version : undefined;
+    }());
+    var isIe6 = ieVersion === 6,
+        isIe7 = ieVersion === 7;
+
+    function isClickOnCheckableElement(element, eventType) {
+        if ((ko.utils.tagNameLower(element) !== "input") || !element.type) return false;
+        if (eventType.toLowerCase() != "click") return false;
+        var inputType = element.type;
+        return (inputType == "checkbox") || (inputType == "radio");
+    }
+
+    // For details on the pattern for changing node classes
+    // see: https://github.com/knockout/knockout/issues/1597
+    var cssClassNameRegex = /\S+/g;
+
+    function toggleDomNodeCssClass(node, classNames, shouldHaveClass) {
+        var addOrRemoveFn;
+        if (classNames) {
+            if (typeof node.classList === 'object') {
+                addOrRemoveFn = node.classList[shouldHaveClass ? 'add' : 'remove'];
+                ko.utils.arrayForEach(classNames.match(cssClassNameRegex), function(className) {
+                    addOrRemoveFn.call(node.classList, className);
+                });
+            } else if (typeof node.className['baseVal'] === 'string') {
+                // SVG tag .classNames is an SVGAnimatedString instance
+                toggleObjectClassPropertyString(node.className, 'baseVal', classNames, shouldHaveClass);
+            } else {
+                // node.className ought to be a string.
+                toggleObjectClassPropertyString(node, 'className', classNames, shouldHaveClass);
+            }
+        }
+    }
+
+    function toggleObjectClassPropertyString(obj, prop, classNames, shouldHaveClass) {
+        // obj/prop is either a node/'className' or a SVGAnimatedString/'baseVal'.
+        var currentClassNames = obj[prop].match(cssClassNameRegex) || [];
+        ko.utils.arrayForEach(classNames.match(cssClassNameRegex), function(className) {
+            ko.utils.addOrRemoveItem(currentClassNames, className, shouldHaveClass);
+        });
+        obj[prop] = currentClassNames.join(" ");
+    }
+
+    return {
+        fieldsIncludedWithJsonPost: ['authenticity_token', /^__RequestVerificationToken(_.*)?$/],
+
+        arrayForEach: function (array, action) {
+            for (var i = 0, j = array.length; i < j; i++)
+                action(array[i], i);
+        },
+
+        arrayIndexOf: function (array, item) {
+            if (typeof Array.prototype.indexOf == "function")
+                return Array.prototype.indexOf.call(array, item);
+            for (var i = 0, j = array.length; i < j; i++)
+                if (array[i] === item)
+                    return i;
+            return -1;
+        },
+
+        arrayFirst: function (array, predicate, predicateOwner) {
+            for (var i = 0, j = array.length; i < j; i++)
+                if (predicate.call(predicateOwner, array[i], i))
+                    return array[i];
+            return null;
+        },
+
+        arrayRemoveItem: function (array, itemToRemove) {
+            var index = ko.utils.arrayIndexOf(array, itemToRemove);
+            if (index > 0) {
+                array.splice(index, 1);
+            }
+            else if (index === 0) {
+                array.shift();
+            }
+        },
+
+        arrayGetDistinctValues: function (array) {
+            array = array || [];
+            var result = [];
+            for (var i = 0, j = array.length; i < j; i++) {
+                if (ko.utils.arrayIndexOf(result, array[i]) < 0)
+                    result.push(array[i]);
+            }
+            return result;
+        },
+
+        arrayMap: function (array, mapping) {
+            array = array || [];
+            var result = [];
+            for (var i = 0, j = array.length; i < j; i++)
+                result.push(mapping(array[i], i));
+            return result;
+        },
+
+        arrayFilter: function (array, predicate) {
+            array = array || [];
+            var result = [];
+            for (var i = 0, j = array.length; i < j; i++)
+                if (predicate(array[i], i))
+                    result.push(array[i]);
+            return result;
+        },
+
+        arrayPushAll: function (array, valuesToPush) {
+            if (valuesToPush instanceof Array)
+                array.push.apply(array, valuesToPush);
+            else
+                for (var i = 0, j = valuesToPush.length; i < j; i++)
+                    array.push(valuesToPush[i]);
+            return array;
+        },
+
+        addOrRemoveItem: function(array, value, included) {
+            var existingEntryIndex = ko.utils.arrayIndexOf(ko.utils.peekObservable(array), value);
+            if (existingEntryIndex < 0) {
+                if (included)
+                    array.push(value);
+            } else {
+                if (!included)
+                    array.splice(existingEntryIndex, 1);
+            }
+        },
+
+        canSetPrototype: canSetPrototype,
+
+        extend: extend,
+
+        setPrototypeOf: setPrototypeOf,
+
+        setPrototypeOfOrExtend: canSetPrototype ? setPrototypeOf : extend,
+
+        objectForEach: objectForEach,
+
+        objectMap: function(source, mapping) {
+            if (!source)
+                return source;
+            var target = {};
+            for (var prop in source) {
+                if (source.hasOwnProperty(prop)) {
+                    target[prop] = mapping(source[prop], prop, source);
+                }
+            }
+            return target;
+        },
+
+        emptyDomNode: function (domNode) {
+            while (domNode.firstChild) {
+                ko.removeNode(domNode.firstChild);
+            }
+        },
+
+        moveCleanedNodesToContainerElement: function(nodes) {
+            // Ensure it's a real array, as we're about to reparent the nodes and
+            // we don't want the underlying collection to change while we're doing that.
+            var nodesArray = ko.utils.makeArray(nodes);
+            var templateDocument = (nodesArray[0] && nodesArray[0].ownerDocument) || document;
+
+            var container = templateDocument.createElement('div');
+            for (var i = 0, j = nodesArray.length; i < j; i++) {
+                container.appendChild(ko.cleanNode(nodesArray[i]));
+            }
+            return container;
+        },
+
+        cloneNodes: function (nodesArray, shouldCleanNodes) {
+            for (var i = 0, j = nodesArray.length, newNodesArray = []; i < j; i++) {
+                var clonedNode = nodesArray[i].cloneNode(true);
+                newNodesArray.push(shouldCleanNodes ? ko.cleanNode(clonedNode) : clonedNode);
+            }
+            return newNodesArray;
+        },
+
+        setDomNodeChildren: function (domNode, childNodes) {
+            ko.utils.emptyDomNode(domNode);
+            if (childNodes) {
+                for (var i = 0, j = childNodes.length; i < j; i++)
+                    domNode.appendChild(childNodes[i]);
+            }
+        },
+
+        replaceDomNodes: function (nodeToReplaceOrNodeArray, newNodesArray) {
+            var nodesToReplaceArray = nodeToReplaceOrNodeArray.nodeType ? [nodeToReplaceOrNodeArray] : nodeToReplaceOrNodeArray;
+            if (nodesToReplaceArray.length > 0) {
+                var insertionPoint = nodesToReplaceArray[0];
+                var parent = insertionPoint.parentNode;
+                for (var i = 0, j = newNodesArray.length; i < j; i++)
+                    parent.insertBefore(newNodesArray[i], insertionPoint);
+                for (var i = 0, j = nodesToReplaceArray.length; i < j; i++) {
+                    ko.removeNode(nodesToReplaceArray[i]);
+                }
+            }
+        },
+
+        fixUpContinuousNodeArray: function(continuousNodeArray, parentNode) {
+            // Before acting on a set of nodes that were previously outputted by a template function, we have to reconcile
+            // them against what is in the DOM right now. It may be that some of the nodes have already been removed, or that
+            // new nodes might have been inserted in the middle, for example by a binding. Also, there may previously have been
+            // leading comment nodes (created by rewritten string-based templates) that have since been removed during binding.
+            // So, this function translates the old "map" output array into its best guess of the set of current DOM nodes.
+            //
+            // Rules:
+            //   [A] Any leading nodes that have been removed should be ignored
+            //       These most likely correspond to memoization nodes that were already removed during binding
+            //       See https://github.com/knockout/knockout/pull/440
+            //   [B] Any trailing nodes that have been remove should be ignored
+            //       This prevents the code here from adding unrelated nodes to the array while processing rule [C]
+            //       See https://github.com/knockout/knockout/pull/1903
+            //   [C] We want to output a continuous series of nodes. So, ignore any nodes that have already been removed,
+            //       and include any nodes that have been inserted among the previous collection
+
+            if (continuousNodeArray.length) {
+                // The parent node can be a virtual element; so get the real parent node
+                parentNode = (parentNode.nodeType === 8 && parentNode.parentNode) || parentNode;
+
+                // Rule [A]
+                while (continuousNodeArray.length && continuousNodeArray[0].parentNode !== parentNode)
+                    continuousNodeArray.splice(0, 1);
+
+                // Rule [B]
+                while (continuousNodeArray.length > 1 && continuousNodeArray[continuousNodeArray.length - 1].parentNode !== parentNode)
+                    continuousNodeArray.length--;
+
+                // Rule [C]
+                if (continuousNodeArray.length > 1) {
+                    var current = continuousNodeArray[0], last = continuousNodeArray[continuousNodeArray.length - 1];
+                    // Replace with the actual new continuous node set
+                    continuousNodeArray.length = 0;
+                    while (current !== last) {
+                        continuousNodeArray.push(current);
+                        current = current.nextSibling;
+                    }
+                    continuousNodeArray.push(last);
+                }
+            }
+            return continuousNodeArray;
+        },
+
+        setOptionNodeSelectionState: function (optionNode, isSelected) {
+            // IE6 sometimes throws "unknown error" if you try to write to .selected directly, whereas Firefox struggles with setAttribute. Pick one based on browser.
+            if (ieVersion < 7)
+                optionNode.setAttribute("selected", isSelected);
+            else
+                optionNode.selected = isSelected;
+        },
+
+        stringTrim: function (string) {
+            return string === null || string === undefined ? '' :
+                string.trim ?
+                    string.trim() :
+                    string.toString().replace(/^[\s\xa0]+|[\s\xa0]+$/g, '');
+        },
+
+        stringStartsWith: function (string, startsWith) {
+            string = string || "";
+            if (startsWith.length > string.length)
+                return false;
+            return string.substring(0, startsWith.length) === startsWith;
+        },
+
+        domNodeIsContainedBy: function (node, containedByNode) {
+            if (node === containedByNode)
+                return true;
+            if (node.nodeType === 11)
+                return false; // Fixes issue #1162 - can't use node.contains for document fragments on IE8
+            if (containedByNode.contains)
+                return containedByNode.contains(node.nodeType === 3 ? node.parentNode : node);
+            if (containedByNode.compareDocumentPosition)
+                return (containedByNode.compareDocumentPosition(node) & 16) == 16;
+            while (node && node != containedByNode) {
+                node = node.parentNode;
+            }
+            return !!node;
+        },
+
+        domNodeIsAttachedToDocument: function (node) {
+            return ko.utils.domNodeIsContainedBy(node, node.ownerDocument.documentElement);
+        },
+
+        anyDomNodeIsAttachedToDocument: function(nodes) {
+            return !!ko.utils.arrayFirst(nodes, ko.utils.domNodeIsAttachedToDocument);
+        },
+
+        tagNameLower: function(element) {
+            // For HTML elements, tagName will always be upper case; for XHTML elements, it'll be lower case.
+            // Possible future optimization: If we know it's an element from an XHTML document (not HTML),
+            // we don't need to do the .toLowerCase() as it will always be lower case anyway.
+            return element && element.tagName && element.tagName.toLowerCase();
+        },
+
+        catchFunctionErrors: function (delegate) {
+            return ko['onError'] ? function () {
+                try {
+                    return delegate.apply(this, arguments);
+                } catch (e) {
+                    ko['onError'] && ko['onError'](e);
+                    throw e;
+                }
+            } : delegate;
+        },
+
+        setTimeout: function (handler, timeout) {
+            return setTimeout(ko.utils.catchFunctionErrors(handler), timeout);
+        },
+
+        deferError: function (error) {
+            setTimeout(function () {
+                ko['onError'] && ko['onError'](error);
+                throw error;
+            }, 0);
+        },
+
+        registerEventHandler: function (element, eventType, handler) {
+            var wrappedHandler = ko.utils.catchFunctionErrors(handler);
+
+            var mustUseAttachEvent = ieVersion && eventsThatMustBeRegisteredUsingAttachEvent[eventType];
+            if (!ko.options['useOnlyNativeEvents'] && !mustUseAttachEvent && jQueryInstance) {
+                jQueryInstance(element)['bind'](eventType, wrappedHandler);
+            } else if (!mustUseAttachEvent && typeof element.addEventListener == "function")
+                element.addEventListener(eventType, wrappedHandler, false);
+            else if (typeof element.attachEvent != "undefined") {
+                var attachEventHandler = function (event) { wrappedHandler.call(element, event); },
+                    attachEventName = "on" + eventType;
+                element.attachEvent(attachEventName, attachEventHandler);
+
+                // IE does not dispose attachEvent handlers automatically (unlike with addEventListener)
+                // so to avoid leaks, we have to remove them manually. See bug #856
+                ko.utils.domNodeDisposal.addDisposeCallback(element, function() {
+                    element.detachEvent(attachEventName, attachEventHandler);
+                });
+            } else
+                throw new Error("Browser doesn't support addEventListener or attachEvent");
+        },
+
+        triggerEvent: function (element, eventType) {
+            if (!(element && element.nodeType))
+                throw new Error("element must be a DOM node when calling triggerEvent");
+
+            // For click events on checkboxes and radio buttons, jQuery toggles the element checked state *after* the
+            // event handler runs instead of *before*. (This was fixed in 1.9 for checkboxes but not for radio buttons.)
+            // IE doesn't change the checked state when you trigger the click event using "fireEvent".
+            // In both cases, we'll use the click method instead.
+            var useClickWorkaround = isClickOnCheckableElement(element, eventType);
+
+            if (!ko.options['useOnlyNativeEvents'] && jQueryInstance && !useClickWorkaround) {
+                jQueryInstance(element)['trigger'](eventType);
+            } else if (typeof document.createEvent == "function") {
+                if (typeof element.dispatchEvent == "function") {
+                    var eventCategory = knownEventTypesByEventName[eventType] || "HTMLEvents";
+                    var event = document.createEvent(eventCategory);
+                    event.initEvent(eventType, true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, element);
+                    element.dispatchEvent(event);
+                }
+                else
+                    throw new Error("The supplied element doesn't support dispatchEvent");
+            } else if (useClickWorkaround && element.click) {
+                element.click();
+            } else if (typeof element.fireEvent != "undefined") {
+                element.fireEvent("on" + eventType);
+            } else {
+                throw new Error("Browser doesn't support triggering events");
+            }
+        },
+
+        unwrapObservable: function (value) {
+            return ko.isObservable(value) ? value() : value;
+        },
+
+        peekObservable: function (value) {
+            return ko.isObservable(value) ? value.peek() : value;
+        },
+
+        toggleDomNodeCssClass: toggleDomNodeCssClass,
+
+        setTextContent: function(element, textContent) {
+            var value = ko.utils.unwrapObservable(textContent);
+            if ((value === null) || (value === undefined))
+                value = "";
+
+            // We need there to be exactly one child: a text node.
+            // If there are no children, more than one, or if it's not a text node,
+            // we'll clear everything and create a single text node.
+            var innerTextNode = ko.virtualElements.firstChild(element);
+            if (!innerTextNode || innerTextNode.nodeType != 3 || ko.virtualElements.nextSibling(innerTextNode)) {
+                ko.virtualElements.setDomNodeChildren(element, [element.ownerDocument.createTextNode(value)]);
+            } else {
+                innerTextNode.data = value;
+            }
+
+            ko.utils.forceRefresh(element);
+        },
+
+        setElementName: function(element, name) {
+            element.name = name;
+
+            // Workaround IE 6/7 issue
+            // - https://github.com/SteveSanderson/knockout/issues/197
+            // - http://www.matts411.com/post/setting_the_name_attribute_in_ie_dom/
+            if (ieVersion <= 7) {
+                try {
+                    element.mergeAttributes(document.createElement("<input name='" + element.name + "'/>"), false);
+                }
+                catch(e) {} // For IE9 with doc mode "IE9 Standards" and browser mode "IE9 Compatibility View"
+            }
+        },
+
+        forceRefresh: function(node) {
+            // Workaround for an IE9 rendering bug - https://github.com/SteveSanderson/knockout/issues/209
+            if (ieVersion >= 9) {
+                // For text nodes and comment nodes (most likely virtual elements), we will have to refresh the container
+                var elem = node.nodeType == 1 ? node : node.parentNode;
+                if (elem.style)
+                    elem.style.zoom = elem.style.zoom;
+            }
+        },
+
+        ensureSelectElementIsRenderedCorrectly: function(selectElement) {
+            // Workaround for IE9 rendering bug - it doesn't reliably display all the text in dynamically-added select boxes unless you force it to re-render by updating the width.
+            // (See https://github.com/SteveSanderson/knockout/issues/312, http://stackoverflow.com/questions/5908494/select-only-shows-first-char-of-selected-option)
+            // Also fixes IE7 and IE8 bug that causes selects to be zero width if enclosed by 'if' or 'with'. (See issue #839)
+            if (ieVersion) {
+                var originalWidth = selectElement.style.width;
+                selectElement.style.width = 0;
+                selectElement.style.width = originalWidth;
+            }
+        },
+
+        range: function (min, max) {
+            min = ko.utils.unwrapObservable(min);
+            max = ko.utils.unwrapObservable(max);
+            var result = [];
+            for (var i = min; i <= max; i++)
+                result.push(i);
+            return result;
+        },
+
+        makeArray: function(arrayLikeObject) {
+            var result = [];
+            for (var i = 0, j = arrayLikeObject.length; i < j; i++) {
+                result.push(arrayLikeObject[i]);
+            };
+            return result;
+        },
+
+        createSymbolOrString: function(identifier) {
+            return canUseSymbols ? Symbol(identifier) : identifier;
+        },
+
+        isIe6 : isIe6,
+        isIe7 : isIe7,
+        ieVersion : ieVersion,
+
+        getFormFields: function(form, fieldName) {
+            var fields = ko.utils.makeArray(form.getElementsByTagName("input")).concat(ko.utils.makeArray(form.getElementsByTagName("textarea")));
+            var isMatchingField = (typeof fieldName == 'string')
+                ? function(field) { return field.name === fieldName }
+                : function(field) { return fieldName.test(field.name) }; // Treat fieldName as regex or object containing predicate
+            var matches = [];
+            for (var i = fields.length - 1; i >= 0; i--) {
+                if (isMatchingField(fields[i]))
+                    matches.push(fields[i]);
+            };
+            return matches;
+        },
+
+        parseJson: function (jsonString) {
+            if (typeof jsonString == "string") {
+                jsonString = ko.utils.stringTrim(jsonString);
+                if (jsonString) {
+                    if (JSON && JSON.parse) // Use native parsing where available
+                        return JSON.parse(jsonString);
+                    return (new Function("return " + jsonString))(); // Fallback on less safe parsing for older browsers
+                }
+            }
+            return null;
+        },
+
+        stringifyJson: function (data, replacer, space) {   // replacer and space are optional
+            if (!JSON || !JSON.stringify)
+                throw new Error("Cannot find JSON.stringify(). Some browsers (e.g., IE < 8) don't support it natively, but you can overcome this by adding a script reference to json2.js, downloadable from http://www.json.org/json2.js");
+            return JSON.stringify(ko.utils.unwrapObservable(data), replacer, space);
+        },
+
+        postJson: function (urlOrForm, data, options) {
+            options = options || {};
+            var params = options['params'] || {};
+            var includeFields = options['includeFields'] || this.fieldsIncludedWithJsonPost;
+            var url = urlOrForm;
+
+            // If we were given a form, use its 'action' URL and pick out any requested field values
+            if((typeof urlOrForm == 'object') && (ko.utils.tagNameLower(urlOrForm) === "form")) {
+                var originalForm = urlOrForm;
+                url = originalForm.action;
+                for (var i = includeFields.length - 1; i >= 0; i--) {
+                    var fields = ko.utils.getFormFields(originalForm, includeFields[i]);
+                    for (var j = fields.length - 1; j >= 0; j--)
+                        params[fields[j].name] = fields[j].value;
+                }
+            }
+
+            data = ko.utils.unwrapObservable(data);
+            var form = document.createElement("form");
+            form.style.display = "none";
+            form.action = url;
+            form.method = "post";
+            for (var key in data) {
+                // Since 'data' this is a model object, we include all properties including those inherited from its prototype
+                var input = document.createElement("input");
+                input.type = "hidden";
+                input.name = key;
+                input.value = ko.utils.stringifyJson(ko.utils.unwrapObservable(data[key]));
+                form.appendChild(input);
+            }
+            objectForEach(params, function(key, value) {
+                var input = document.createElement("input");
+                input.type = "hidden";
+                input.name = key;
+                input.value = value;
+                form.appendChild(input);
+            });
+            document.body.appendChild(form);
+            options['submitter'] ? options['submitter'](form) : form.submit();
+            setTimeout(function () { form.parentNode.removeChild(form); }, 0);
+        }
+    }
+}());
+
+ko.exportSymbol('utils', ko.utils);
+ko.exportSymbol('utils.arrayForEach', ko.utils.arrayForEach);
+ko.exportSymbol('utils.arrayFirst', ko.utils.arrayFirst);
+ko.exportSymbol('utils.arrayFilter', ko.utils.arrayFilter);
+ko.exportSymbol('utils.arrayGetDistinctValues', ko.utils.arrayGetDistinctValues);
+ko.exportSymbol('utils.arrayIndexOf', ko.utils.arrayIndexOf);
+ko.exportSymbol('utils.arrayMap', ko.utils.arrayMap);
+ko.exportSymbol('utils.arrayPushAll', ko.utils.arrayPushAll);
+ko.exportSymbol('utils.arrayRemoveItem', ko.utils.arrayRemoveItem);
+ko.exportSymbol('utils.extend', ko.utils.extend);
+ko.exportSymbol('utils.fieldsIncludedWithJsonPost', ko.utils.fieldsIncludedWithJsonPost);
+ko.exportSymbol('utils.getFormFields', ko.utils.getFormFields);
+ko.exportSymbol('utils.peekObservable', ko.utils.peekObservable);
+ko.exportSymbol('utils.postJson', ko.utils.postJson);
+ko.exportSymbol('utils.parseJson', ko.utils.parseJson);
+ko.exportSymbol('utils.registerEventHandler', ko.utils.registerEventHandler);
+ko.exportSymbol('utils.stringifyJson', ko.utils.stringifyJson);
+ko.exportSymbol('utils.range', ko.utils.range);
+ko.exportSymbol('utils.toggleDomNodeCssClass', ko.utils.toggleDomNodeCssClass);
+ko.exportSymbol('utils.triggerEvent', ko.utils.triggerEvent);
+ko.exportSymbol('utils.unwrapObservable', ko.utils.unwrapObservable);
+ko.exportSymbol('utils.objectForEach', ko.utils.objectForEach);
+ko.exportSymbol('utils.addOrRemoveItem', ko.utils.addOrRemoveItem);
+ko.exportSymbol('utils.setTextContent', ko.utils.setTextContent);
+ko.exportSymbol('unwrap', ko.utils.unwrapObservable); // Convenient shorthand, because this is used so commonly
+
+if (!Function.prototype['bind']) {
+    // Function.prototype.bind is a standard part of ECMAScript 5th Edition (December 2009, http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-262.pdf)
+    // In case the browser doesn't implement it natively, provide a JavaScript implementation. This implementation is based on the one in prototype.js
+    Function.prototype['bind'] = function (object) {
+        var originalFunction = this;
+        if (arguments.length === 1) {
+            return function () {
+                return originalFunction.apply(object, arguments);
+            };
+        } else {
+            var partialArgs = Array.prototype.slice.call(arguments, 1);
+            return function () {
+                var args = partialArgs.slice(0);
+                args.push.apply(args, arguments);
+                return originalFunction.apply(object, args);
+            };
+        }
+    };
+}

demo/filebrowser-durandal-widget/lib/knockout/src/version.js

@@ -0,0 +1,3 @@
+ko.version = "##VERSION##";
+
+ko.exportSymbol('version', ko.version);

demo/filebrowser-durandal-widget/lib/knockout/src/virtualElements.js

@@ -0,0 +1,195 @@
+(function() {
+    // "Virtual elements" is an abstraction on top of the usual DOM API which understands the notion that comment nodes
+    // may be used to represent hierarchy (in addition to the DOM's natural hierarchy).
+    // If you call the DOM-manipulating functions on ko.virtualElements, you will be able to read and write the state
+    // of that virtual hierarchy
+    //
+    // The point of all this is to support containerless templates (e.g., <!-- ko foreach:someCollection -->blah<!-- /ko -->)
+    // without having to scatter special cases all over the binding and templating code.
+
+    // IE 9 cannot reliably read the "nodeValue" property of a comment node (see https://github.com/SteveSanderson/knockout/issues/186)
+    // but it does give them a nonstandard alternative property called "text" that it can read reliably. Other browsers don't have that property.
+    // So, use node.text where available, and node.nodeValue elsewhere
+    var commentNodesHaveTextProperty = document && document.createComment("test").text === "<!--test-->";
+
+    var startCommentRegex = commentNodesHaveTextProperty ? /^<!--\s*ko(?:\s+([\s\S]+))?\s*-->$/ : /^\s*ko(?:\s+([\s\S]+))?\s*$/;
+    var endCommentRegex =   commentNodesHaveTextProperty ? /^<!--\s*\/ko\s*-->$/ : /^\s*\/ko\s*$/;
+    var htmlTagsWithOptionallyClosingChildren = { 'ul': true, 'ol': true };
+
+    function isStartComment(node) {
+        return (node.nodeType == 8) && startCommentRegex.test(commentNodesHaveTextProperty ? node.text : node.nodeValue);
+    }
+
+    function isEndComment(node) {
+        return (node.nodeType == 8) && endCommentRegex.test(commentNodesHaveTextProperty ? node.text : node.nodeValue);
+    }
+
+    function getVirtualChildren(startComment, allowUnbalanced) {
+        var currentNode = startComment;
+        var depth = 1;
+        var children = [];
+        while (currentNode = currentNode.nextSibling) {
+            if (isEndComment(currentNode)) {
+                depth--;
+                if (depth === 0)
+                    return children;
+            }
+
+            children.push(currentNode);
+
+            if (isStartComment(currentNode))
+                depth++;
+        }
+        if (!allowUnbalanced)
+            throw new Error("Cannot find closing comment tag to match: " + startComment.nodeValue);
+        return null;
+    }
+
+    function getMatchingEndComment(startComment, allowUnbalanced) {
+        var allVirtualChildren = getVirtualChildren(startComment, allowUnbalanced);
+        if (allVirtualChildren) {
+            if (allVirtualChildren.length > 0)
+                return allVirtualChildren[allVirtualChildren.length - 1].nextSibling;
+            return startComment.nextSibling;
+        } else
+            return null; // Must have no matching end comment, and allowUnbalanced is true
+    }
+
+    function getUnbalancedChildTags(node) {
+        // e.g., from <div>OK</div><!-- ko blah --><span>Another</span>, returns: <!-- ko blah --><span>Another</span>
+        //       from <div>OK</div><!-- /ko --><!-- /ko -->,             returns: <!-- /ko --><!-- /ko -->
+        var childNode = node.firstChild, captureRemaining = null;
+        if (childNode) {
+            do {
+                if (captureRemaining)                   // We already hit an unbalanced node and are now just scooping up all subsequent nodes
+                    captureRemaining.push(childNode);
+                else if (isStartComment(childNode)) {
+                    var matchingEndComment = getMatchingEndComment(childNode, /* allowUnbalanced: */ true);
+                    if (matchingEndComment)             // It's a balanced tag, so skip immediately to the end of this virtual set
+                        childNode = matchingEndComment;
+                    else
+                        captureRemaining = [childNode]; // It's unbalanced, so start capturing from this point
+                } else if (isEndComment(childNode)) {
+                    captureRemaining = [childNode];     // It's unbalanced (if it wasn't, we'd have skipped over it already), so start capturing
+                }
+            } while (childNode = childNode.nextSibling);
+        }
+        return captureRemaining;
+    }
+
+    ko.virtualElements = {
+        allowedBindings: {},
+
+        childNodes: function(node) {
+            return isStartComment(node) ? getVirtualChildren(node) : node.childNodes;
+        },
+
+        emptyNode: function(node) {
+            if (!isStartComment(node))
+                ko.utils.emptyDomNode(node);
+            else {
+                var virtualChildren = ko.virtualElements.childNodes(node);
+                for (var i = 0, j = virtualChildren.length; i < j; i++)
+                    ko.removeNode(virtualChildren[i]);
+            }
+        },
+
+        setDomNodeChildren: function(node, childNodes) {
+            if (!isStartComment(node))
+                ko.utils.setDomNodeChildren(node, childNodes);
+            else {
+                ko.virtualElements.emptyNode(node);
+                var endCommentNode = node.nextSibling; // Must be the next sibling, as we just emptied the children
+                for (var i = 0, j = childNodes.length; i < j; i++)
+                    endCommentNode.parentNode.insertBefore(childNodes[i], endCommentNode);
+            }
+        },
+
+        prepend: function(containerNode, nodeToPrepend) {
+            if (!isStartComment(containerNode)) {
+                if (containerNode.firstChild)
+                    containerNode.insertBefore(nodeToPrepend, containerNode.firstChild);
+                else
+                    containerNode.appendChild(nodeToPrepend);
+            } else {
+                // Start comments must always have a parent and at least one following sibling (the end comment)
+                containerNode.parentNode.insertBefore(nodeToPrepend, containerNode.nextSibling);
+            }
+        },
+
+        insertAfter: function(containerNode, nodeToInsert, insertAfterNode) {
+            if (!insertAfterNode) {
+                ko.virtualElements.prepend(containerNode, nodeToInsert);
+            } else if (!isStartComment(containerNode)) {
+                // Insert after insertion point
+                if (insertAfterNode.nextSibling)
+                    containerNode.insertBefore(nodeToInsert, insertAfterNode.nextSibling);
+                else
+                    containerNode.appendChild(nodeToInsert);
+            } else {
+                // Children of start comments must always have a parent and at least one following sibling (the end comment)
+                containerNode.parentNode.insertBefore(nodeToInsert, insertAfterNode.nextSibling);
+            }
+        },
+
+        firstChild: function(node) {
+            if (!isStartComment(node))
+                return node.firstChild;
+            if (!node.nextSibling || isEndComment(node.nextSibling))
+                return null;
+            return node.nextSibling;
+        },
+
+        nextSibling: function(node) {
+            if (isStartComment(node))
+                node = getMatchingEndComment(node);
+            if (node.nextSibling && isEndComment(node.nextSibling))
+                return null;
+            return node.nextSibling;
+        },
+
+        hasBindingValue: isStartComment,
+
+        virtualNodeBindingValue: function(node) {
+            var regexMatch = (commentNodesHaveTextProperty ? node.text : node.nodeValue).match(startCommentRegex);
+            return regexMatch ? regexMatch[1] : null;
+        },
+
+        normaliseVirtualElementDomStructure: function(elementVerified) {
+            // Workaround for https://github.com/SteveSanderson/knockout/issues/155
+            // (IE <= 8 or IE 9 quirks mode parses your HTML weirdly, treating closing </li> tags as if they don't exist, thereby moving comment nodes
+            // that are direct descendants of <ul> into the preceding <li>)
+            if (!htmlTagsWithOptionallyClosingChildren[ko.utils.tagNameLower(elementVerified)])
+                return;
+
+            // Scan immediate children to see if they contain unbalanced comment tags. If they do, those comment tags
+            // must be intended to appear *after* that child, so move them there.
+            var childNode = elementVerified.firstChild;
+            if (childNode) {
+                do {
+                    if (childNode.nodeType === 1) {
+                        var unbalancedTags = getUnbalancedChildTags(childNode);
+                        if (unbalancedTags) {
+                            // Fix up the DOM by moving the unbalanced tags to where they most likely were intended to be placed - *after* the child
+                            var nodeToInsertBefore = childNode.nextSibling;
+                            for (var i = 0; i < unbalancedTags.length; i++) {
+                                if (nodeToInsertBefore)
+                                    elementVerified.insertBefore(unbalancedTags[i], nodeToInsertBefore);
+                                else
+                                    elementVerified.appendChild(unbalancedTags[i]);
+                            }
+                        }
+                    }
+                } while (childNode = childNode.nextSibling);
+            }
+        }
+    };
+})();
+ko.exportSymbol('virtualElements', ko.virtualElements);
+ko.exportSymbol('virtualElements.allowedBindings', ko.virtualElements.allowedBindings);
+ko.exportSymbol('virtualElements.emptyNode', ko.virtualElements.emptyNode);
+//ko.exportSymbol('virtualElements.firstChild', ko.virtualElements.firstChild);     // firstChild is not minified
+ko.exportSymbol('virtualElements.insertAfter', ko.virtualElements.insertAfter);
+//ko.exportSymbol('virtualElements.nextSibling', ko.virtualElements.nextSibling);   // nextSibling is not minified
+ko.exportSymbol('virtualElements.prepend', ko.virtualElements.prepend);
+ko.exportSymbol('virtualElements.setDomNodeChildren', ko.virtualElements.setDomNodeChildren);