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