128 lines
4.6 KiB
JavaScript
128 lines
4.6 KiB
JavaScript
/// <reference name="MicrosoftAjax.js"/>
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if (typeof Umbraco == 'undefined') var Umbraco = {};
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if (!Umbraco.Sys) Umbraco.Sys = {};
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Umbraco.Sys.UmbracoDependencyLoader = function() {
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this.addedDependencies = [];
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this.jsQueue = new Array();
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this.jsQueueWaiting = false;
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}
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// ********************* Dependency Loader Methods *********************
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Umbraco.Sys.UmbracoDependencyLoader.prototype.AddJs = function(filePath, callbackMethod) {
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if (typeof (Sys) == "undefined") {
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var loader = this;
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setTimeout(function() { loader.AddJs(filePath, callbackMethod); }, 100);
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}
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else {
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if (this.addedDependencies[filePath] == undefined) {
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Sys.Debug.trace("UmbracoDependencyLoader: Queueing '" + filePath + "'.");
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// add script to queue
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var script = new Array();
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script.filePath = filePath;
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script.callbackMethod = callbackMethod;
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script.loaded = false;
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this.jsQueue[this.jsQueue.length] = script;
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this.addedDependencies[filePath] = true;
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Sys.Debug.trace("UmbracoDependencyLoader: Queued '" + filePath + "', queue length " + this.jsQueue.length + ".");
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if (!this.jsQueueWaiting)
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this.LoadNextJs();
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}
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else {
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Sys.Debug.trace("UmbracoDependencyLoader: Javascript file has already been added '" + filePath + "'.");
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}
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}
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return this;
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}
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Umbraco.Sys.UmbracoDependencyLoader.prototype.AddCss = function(filePath) {
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if (typeof (Sys) == "undefined") {
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var loader = this;
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setTimeout(function() { loader.AddCss(filePath); }, 100);
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}
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else {
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if (this.addedDependencies[filePath] == undefined) {
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var tempCss = document.createElement("link")
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tempCss.setAttribute("href", filePath);
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tempCss.setAttribute("rel", "stylesheet");
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tempCss.setAttribute("type", "text/css");
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document.getElementsByTagName("head")[0].appendChild(tempCss);
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this.addedDependencies[filePath] = "loaded";
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}
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else {
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Sys.Debug.trace("UmbracoDependencyLoader: Css file has already been added: '" + filePath + "'.");
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}
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}
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return this;
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}
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Umbraco.Sys.UmbracoDependencyLoader.prototype.LoadNextJs = function() {
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if (this.jsQueue.length > 0) {
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this.jsQueueWaiting = true;
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var script = this.jsQueue[0];
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this.jsQueue.splice(0, 1);
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Sys.Debug.trace("UmbracoDependencyLoader: Loading '" + script.filePath + "'. (" + this.jsQueue.length + " scripts left)");
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var tempJs = document.createElement('script');
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tempJs.setAttribute("src", script.filePath);
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tempJs.setAttribute("type", "text/javascript");
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tempJs.onload = function() { Umbraco.Sys.onScriptAvailable(script); };
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tempJs.onreadystatechange = function() {
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if (this.readyState == 'loaded' || this.readyState == 'complete') {
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Umbraco.Sys.onScriptAvailable(script);
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}
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};
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document.getElementsByTagName("head")[0].appendChild(tempJs);
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}
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else {
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Sys.Debug.trace('UmbracoDependencyLoader: No scripts left.');
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this.jsQueueWaiting = false;
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}
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}
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Umbraco.Sys.UmbracoDependencyLoader.prototype.RunMethod = function(methodName) {
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var invoker = new UmbracoMethodInvoker();
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invoker.Run(methodName);
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}
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// Initialize
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var UmbDependencyLoader = new Umbraco.Sys.UmbracoDependencyLoader();
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Umbraco.Sys.onScriptAvailable = function(script) {
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/// <summary>
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/// This method checks if the string representation of a method (sMethod) is registered as a function yet,
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/// and if it is it'll call the function (oCallback), if not it'll try again after 50 ms.
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/// </summary>
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if (!script.loaded) {
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Sys.Debug.trace("UmbracoDependencyLoader: Loaded '" + script.filePath + "'.");
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script.loaded = true;
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}
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if (script.callbackMethod == '') {
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UmbDependencyLoader.LoadNextJs();
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}
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else {
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if (typeof (eval(script.callbackMethod)) == 'function') {
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UmbDependencyLoader.LoadNextJs();
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Sys.Debug.trace("UmbracoDependencyLoader: Executing '" + script.filePath + "' callback '" + script.callbackMethod + "'.");
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var func = eval(script.callbackMethod);
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alert(func);
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func.call(this);
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//eval(script.callbackMethod + "()");
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}
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else {
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setTimeout(function() {
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Umbraco.Sys.onScriptAvailable(script);
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}, 50);
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}
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}
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} |