+(function(Manager, Class, flexSetter, alias) {
+
+ var
+ //<if nonBrowser>
+ isNonBrowser = typeof window === 'undefined',
+ isNodeJS = isNonBrowser && (typeof require === 'function'),
+ isPhantomJS = (typeof phantom !== 'undefined' && phantom.fs),
+ //</if>
+ dependencyProperties = ['extend', 'mixins', 'requires'],
+ Loader;
+
+ Loader = Ext.Loader = {
+<span id='Ext-Loader-property-documentHead'> /**
+</span> * @private
+ */
+ documentHead: typeof document !== 'undefined' && (document.head || document.getElementsByTagName('head')[0]),
+
+<span id='Ext-Loader-property-isLoading'> /**
+</span> * Flag indicating whether there are still files being loaded
+ * @private
+ */
+ isLoading: false,
+
+<span id='Ext-Loader-property-queue'> /**
+</span> * Maintain the queue for all dependencies. Each item in the array is an object of the format:
+ * {
+ * requires: [...], // The required classes for this queue item
+ * callback: function() { ... } // The function to execute when all classes specified in requires exist
+ * }
+ * @private
+ */
+ queue: [],
+
+<span id='Ext-Loader-property-isFileLoaded'> /**
+</span> * Maintain the list of files that have already been handled so that they never get double-loaded
+ * @private
+ */
+ isFileLoaded: {},
+
+<span id='Ext-Loader-property-readyListeners'> /**
+</span> * Maintain the list of listeners to execute when all required scripts are fully loaded
+ * @private
+ */
+ readyListeners: [],
+
+<span id='Ext-Loader-property-optionalRequires'> /**
+</span> * Contains optional dependencies to be loaded last
+ * @private
+ */
+ optionalRequires: [],
+
+<span id='Ext-Loader-property-requiresMap'> /**
+</span> * Map of fully qualified class names to an array of dependent classes.
+ * @private
+ */
+ requiresMap: {},
+
+<span id='Ext-Loader-property-numPendingFiles'> /**
+</span> * @private
+ */
+ numPendingFiles: 0,
+
+<span id='Ext-Loader-property-numLoadedFiles'> /**
+</span> * @private
+ */
+ numLoadedFiles: 0,
+
+<span id='Ext-Loader-property-hasFileLoadError'> /** @private */
+</span> hasFileLoadError: false,
+
+<span id='Ext-Loader-property-classNameToFilePathMap'> /**
+</span> * @private
+ */
+ classNameToFilePathMap: {},
+
+<span id='Ext-Loader-property-history'> /**
+</span> * @property {String[]} history
+ * An array of class names to keep track of the dependency loading order.
+ * This is not guaranteed to be the same everytime due to the asynchronous nature of the Loader.
+ */
+ history: [],
+
+<span id='Ext-Loader-property-config'> /**
+</span> * Configuration
+ * @private
+ */
+ config: {
+<span id='Ext-Loader-cfg-enabled'> /**
+</span> * @cfg {Boolean} enabled
+ * Whether or not to enable the dynamic dependency loading feature.
+ */
+ enabled: false,
+
+<span id='Ext-Loader-cfg-disableCaching'> /**
+</span> * @cfg {Boolean} disableCaching
+ * Appends current timestamp to script files to prevent caching.
+ */
+ disableCaching: true,
+
+<span id='Ext-Loader-cfg-disableCachingParam'> /**
+</span> * @cfg {String} disableCachingParam
+ * The get parameter name for the cache buster's timestamp.
+ */
+ disableCachingParam: '_dc',
+
+<span id='Ext-Loader-cfg-paths'> /**
+</span> * @cfg {Object} paths
+ * The mapping from namespaces to file paths
+ *
+ * {
+ * 'Ext': '.', // This is set by default, Ext.layout.container.Container will be
+ * // loaded from ./layout/Container.js
+ *
+ * 'My': './src/my_own_folder' // My.layout.Container will be loaded from
+ * // ./src/my_own_folder/layout/Container.js
+ * }
+ *
+ * Note that all relative paths are relative to the current HTML document.
+ * If not being specified, for example, `Other.awesome.Class`
+ * will simply be loaded from `./Other/awesome/Class.js`
+ */
+ paths: {
+ 'Ext': '.'
+ }
+ },
+
+<span id='Ext-Loader-method-setConfig'> /**
+</span> * Set the configuration for the loader. This should be called right after ext-core.js
+ * (or ext-core-debug.js) is included in the page, e.g.:
+ *
+ * <script type="text/javascript" src="ext-core-debug.js"></script>
+ * <script type="text/javascript">
+ * Ext.Loader.setConfig({
+ * enabled: true,
+ * paths: {
+ * 'My': 'my_own_path'
+ * }
+ * });
+ * <script>
+ * <script type="text/javascript">
+ * Ext.require(...);
+ *
+ * Ext.onReady(function() {
+ * // application code here
+ * });
+ * </script>
+ *
+ * Refer to config options of {@link Ext.Loader} for the list of possible properties.
+ *
+ * @param {String/Object} name Name of the value to override, or a config object to override multiple values.
+ * @param {Object} value (optional) The new value to set, needed if first parameter is String.
+ * @return {Ext.Loader} this
+ */
+ setConfig: function(name, value) {
+ if (Ext.isObject(name) && arguments.length === 1) {
+ Ext.Object.merge(this.config, name);
+ }
+ else {
+ this.config[name] = (Ext.isObject(value)) ? Ext.Object.merge(this.config[name], value) : value;
+ }
+
+ return this;
+ },
+
+<span id='Ext-Loader-method-getConfig'> /**
+</span> * Get the config value corresponding to the specified name.
+ * If no name is given, will return the config object.
+ * @param {String} name The config property name
+ * @return {Object}
+ */
+ getConfig: function(name) {
+ if (name) {
+ return this.config[name];
+ }
+
+ return this.config;
+ },
+
+<span id='Ext-Loader-method-setPath'> /**
+</span> * Sets the path of a namespace. For Example:
+ *
+ * Ext.Loader.setPath('Ext', '.');
+ *
+ * @param {String/Object} name See {@link Ext.Function#flexSetter flexSetter}
+ * @param {String} path See {@link Ext.Function#flexSetter flexSetter}
+ * @return {Ext.Loader} this
+ * @method
+ */
+ setPath: flexSetter(function(name, path) {
+ //<if nonBrowser>
+ if (isNonBrowser) {
+ if (isNodeJS) {
+ path = require('fs').realpathSync(path);
+ }
+ }
+ //</if>
+ this.config.paths[name] = path;
+
+ return this;
+ }),
+
+<span id='Ext-Loader-method-getPath'> /**
+</span> * Translates a className to a file path by adding the the proper prefix and converting the .'s to /'s.
+ * For example:
+ *
+ * Ext.Loader.setPath('My', '/path/to/My');
+ *
+ * alert(Ext.Loader.getPath('My.awesome.Class')); // alerts '/path/to/My/awesome/Class.js'
+ *
+ * Note that the deeper namespace levels, if explicitly set, are always resolved first. For example:
+ *
+ * Ext.Loader.setPath({
+ * 'My': '/path/to/lib',
+ * 'My.awesome': '/other/path/for/awesome/stuff',
+ * 'My.awesome.more': '/more/awesome/path'
+ * });
+ *
+ * alert(Ext.Loader.getPath('My.awesome.Class')); // alerts '/other/path/for/awesome/stuff/Class.js'
+ *
+ * alert(Ext.Loader.getPath('My.awesome.more.Class')); // alerts '/more/awesome/path/Class.js'
+ *
+ * alert(Ext.Loader.getPath('My.cool.Class')); // alerts '/path/to/lib/cool/Class.js'
+ *
+ * alert(Ext.Loader.getPath('Unknown.strange.Stuff')); // alerts 'Unknown/strange/Stuff.js'
+ *
+ * @param {String} className
+ * @return {String} path
+ */
+ getPath: function(className) {
+ var path = '',
+ paths = this.config.paths,
+ prefix = this.getPrefix(className);
+
+ if (prefix.length > 0) {
+ if (prefix === className) {
+ return paths[prefix];
+ }
+
+ path = paths[prefix];
+ className = className.substring(prefix.length + 1);
+ }
+
+ if (path.length > 0) {
+ path += '/';
+ }
+
+ return path.replace(/\/\.\//g, '/') + className.replace(/\./g, "/") + '.js';
+ },
+
+<span id='Ext-Loader-method-getPrefix'> /**
+</span> * @private
+ * @param {String} className
+ */
+ getPrefix: function(className) {
+ var paths = this.config.paths,
+ prefix, deepestPrefix = '';
+
+ if (paths.hasOwnProperty(className)) {
+ return className;
+ }
+
+ for (prefix in paths) {
+ if (paths.hasOwnProperty(prefix) && prefix + '.' === className.substring(0, prefix.length + 1)) {
+ if (prefix.length > deepestPrefix.length) {
+ deepestPrefix = prefix;
+ }
+ }
+ }
+
+ return deepestPrefix;
+ },
+
+<span id='Ext-Loader-method-refreshQueue'> /**
+</span> * Refresh all items in the queue. If all dependencies for an item exist during looping,
+ * it will execute the callback and call refreshQueue again. Triggers onReady when the queue is
+ * empty
+ * @private
+ */
+ refreshQueue: function() {
+ var ln = this.queue.length,
+ i, item, j, requires;
+
+ if (ln === 0) {
+ this.triggerReady();
+ return;
+ }
+
+ for (i = 0; i < ln; i++) {
+ item = this.queue[i];
+
+ if (item) {
+ requires = item.requires;
+
+ // Don't bother checking when the number of files loaded
+ // is still less than the array length
+ if (requires.length > this.numLoadedFiles) {
+ continue;
+ }
+
+ j = 0;
+
+ do {
+ if (Manager.isCreated(requires[j])) {
+ // Take out from the queue
+ Ext.Array.erase(requires, j, 1);
+ }
+ else {
+ j++;
+ }
+ } while (j < requires.length);
+
+ if (item.requires.length === 0) {
+ Ext.Array.erase(this.queue, i, 1);
+ item.callback.call(item.scope);
+ this.refreshQueue();
+ break;
+ }
+ }
+ }
+
+ return this;
+ },
+
+<span id='Ext-Loader-method-injectScriptElement'> /**
+</span> * Inject a script element to document's head, call onLoad and onError accordingly
+ * @private
+ */
+ injectScriptElement: function(url, onLoad, onError, scope) {
+ var script = document.createElement('script'),
+ me = this,
+ onLoadFn = function() {
+ me.cleanupScriptElement(script);
+ onLoad.call(scope);
+ },
+ onErrorFn = function() {
+ me.cleanupScriptElement(script);
+ onError.call(scope);
+ };
+
+ script.type = 'text/javascript';
+ script.src = url;
+ script.onload = onLoadFn;
+ script.onerror = onErrorFn;
+ script.onreadystatechange = function() {
+ if (this.readyState === 'loaded' || this.readyState === 'complete') {
+ onLoadFn();
+ }
+ };
+
+ this.documentHead.appendChild(script);
+
+ return script;
+ },
+
+<span id='Ext-Loader-method-cleanupScriptElement'> /**
+</span> * @private
+ */
+ cleanupScriptElement: function(script) {
+ script.onload = null;
+ script.onreadystatechange = null;
+ script.onerror = null;
+
+ return this;
+ },
+
+<span id='Ext-Loader-method-loadScriptFile'> /**
+</span> * Load a script file, supports both asynchronous and synchronous approaches
+ *
+ * @param {String} url
+ * @param {Function} onLoad
+ * @param {Object} scope
+ * @param {Boolean} synchronous
+ * @private
+ */
+ loadScriptFile: function(url, onLoad, onError, scope, synchronous) {
+ var me = this,
+ noCacheUrl = url + (this.getConfig('disableCaching') ? ('?' + this.getConfig('disableCachingParam') + '=' + Ext.Date.now()) : ''),
+ fileName = url.split('/').pop(),
+ isCrossOriginRestricted = false,
+ xhr, status, onScriptError;
+
+ scope = scope || this;
+
+ this.isLoading = true;
+
+ if (!synchronous) {
+ onScriptError = function() {
+ onError.call(scope, "Failed loading '" + url + "', please verify that the file exists", synchronous);
+ };
+
+ if (!Ext.isReady && Ext.onDocumentReady) {
+ Ext.onDocumentReady(function() {
+ me.injectScriptElement(noCacheUrl, onLoad, onScriptError, scope);
+ });
+ }
+ else {
+ this.injectScriptElement(noCacheUrl, onLoad, onScriptError, scope);
+ }
+ }
+ else {
+ if (typeof XMLHttpRequest !== 'undefined') {
+ xhr = new XMLHttpRequest();
+ } else {
+ xhr = new ActiveXObject('Microsoft.XMLHTTP');
+ }
+
+ try {
+ xhr.open('GET', noCacheUrl, false);
+ xhr.send(null);
+ } catch (e) {
+ isCrossOriginRestricted = true;
+ }
+
+ status = (xhr.status === 1223) ? 204 : xhr.status;
+
+ if (!isCrossOriginRestricted) {
+ isCrossOriginRestricted = (status === 0);
+ }
+
+ if (isCrossOriginRestricted
+ //<if isNonBrowser>
+ && !isPhantomJS
+ //</if>
+ ) {
+ onError.call(this, "Failed loading synchronously via XHR: '" + url + "'; It's likely that the file is either " +
+ "being loaded from a different domain or from the local file system whereby cross origin " +
+ "requests are not allowed due to security reasons. Use asynchronous loading with " +
+ "Ext.require instead.", synchronous);
+ }
+ else if (status >= 200 && status < 300
+ //<if isNonBrowser>
+ || isPhantomJS
+ //</if>
+ ) {
+ // Firebug friendly, file names are still shown even though they're eval'ed code
+ new Function(xhr.responseText + "\n//@ sourceURL=" + fileName)();
+
+ onLoad.call(scope);
+ }
+ else {
+ onError.call(this, "Failed loading synchronously via XHR: '" + url + "'; please " +
+ "verify that the file exists. " +
+ "XHR status code: " + status, synchronous);
+ }
+
+ // Prevent potential IE memory leak
+ xhr = null;
+ }
+ },
+
+<span id='Ext-Loader-method-exclude'> /**
+</span> * Explicitly exclude files from being loaded. Useful when used in conjunction with a broad include expression.
+ * Can be chained with more `require` and `exclude` methods, e.g.:
+ *
+ * Ext.exclude('Ext.data.*').require('*');
+ *
+ * Ext.exclude('widget.button*').require('widget.*');
+ *
+ * {@link Ext#exclude Ext.exclude} is alias for {@link Ext.Loader#exclude Ext.Loader.exclude} for convenience.
+ *
+ * @param {String/String[]} excludes
+ * @return {Object} object contains `require` method for chaining
+ */
+ exclude: function(excludes) {
+ var me = this;
+
+ return {
+ require: function(expressions, fn, scope) {
+ return me.require(expressions, fn, scope, excludes);
+ },
+
+ syncRequire: function(expressions, fn, scope) {
+ return me.syncRequire(expressions, fn, scope, excludes);
+ }
+ };
+ },
+
+<span id='Ext-Loader-method-syncRequire'> /**
+</span> * Synchronously loads all classes by the given names and all their direct dependencies;
+ * optionally executes the given callback function when finishes, within the optional scope.
+ *
+ * {@link Ext#syncRequire Ext.syncRequire} is alias for {@link Ext.Loader#syncRequire Ext.Loader.syncRequire} for convenience.
+ *
+ * @param {String/String[]} expressions Can either be a string or an array of string
+ * @param {Function} fn (Optional) The callback function
+ * @param {Object} scope (Optional) The execution scope (`this`) of the callback function
+ * @param {String/String[]} excludes (Optional) Classes to be excluded, useful when being used with expressions
+ */
+ syncRequire: function() {
+ this.syncModeEnabled = true;
+ this.require.apply(this, arguments);
+ this.refreshQueue();
+ this.syncModeEnabled = false;
+ },
+
+<span id='Ext-Loader-method-require'> /**
+</span> * Loads all classes by the given names and all their direct dependencies;
+ * optionally executes the given callback function when finishes, within the optional scope.
+ *
+ * {@link Ext#require Ext.require} is alias for {@link Ext.Loader#require Ext.Loader.require} for convenience.
+ *
+ * @param {String/String[]} expressions Can either be a string or an array of string
+ * @param {Function} fn (Optional) The callback function
+ * @param {Object} scope (Optional) The execution scope (`this`) of the callback function
+ * @param {String/String[]} excludes (Optional) Classes to be excluded, useful when being used with expressions
+ */
+ require: function(expressions, fn, scope, excludes) {
+ var filePath, expression, exclude, className, excluded = {},
+ excludedClassNames = [],
+ possibleClassNames = [],
+ possibleClassName, classNames = [],
+ i, j, ln, subLn;
+
+ expressions = Ext.Array.from(expressions);
+ excludes = Ext.Array.from(excludes);
+
+ fn = fn || Ext.emptyFn;
+
+ scope = scope || Ext.global;
+
+ for (i = 0, ln = excludes.length; i < ln; i++) {
+ exclude = excludes[i];
+
+ if (typeof exclude === 'string' && exclude.length > 0) {
+ excludedClassNames = Manager.getNamesByExpression(exclude);
+
+ for (j = 0, subLn = excludedClassNames.length; j < subLn; j++) {
+ excluded[excludedClassNames[j]] = true;
+ }
+ }
+ }
+
+ for (i = 0, ln = expressions.length; i < ln; i++) {
+ expression = expressions[i];
+
+ if (typeof expression === 'string' && expression.length > 0) {
+ possibleClassNames = Manager.getNamesByExpression(expression);
+
+ for (j = 0, subLn = possibleClassNames.length; j < subLn; j++) {
+ possibleClassName = possibleClassNames[j];
+
+ if (!excluded.hasOwnProperty(possibleClassName) && !Manager.isCreated(possibleClassName)) {
+ Ext.Array.include(classNames, possibleClassName);
+ }
+ }
+ }
+ }
+
+ // If the dynamic dependency feature is not being used, throw an error
+ // if the dependencies are not defined
+ if (!this.config.enabled) {
+ if (classNames.length > 0) {
+ Ext.Error.raise({
+ sourceClass: "Ext.Loader",
+ sourceMethod: "require",
+ msg: "Ext.Loader is not enabled, so dependencies cannot be resolved dynamically. " +
+ "Missing required class" + ((classNames.length > 1) ? "es" : "") + ": " + classNames.join(', ')
+ });
+ }
+ }
+
+ if (classNames.length === 0) {
+ fn.call(scope);
+ return this;
+ }
+
+ this.queue.push({
+ requires: classNames,
+ callback: fn,
+ scope: scope
+ });
+
+ classNames = classNames.slice();
+
+ for (i = 0, ln = classNames.length; i < ln; i++) {
+ className = classNames[i];
+
+ if (!this.isFileLoaded.hasOwnProperty(className)) {
+ this.isFileLoaded[className] = false;
+
+ filePath = this.getPath(className);
+
+ this.classNameToFilePathMap[className] = filePath;
+
+ this.numPendingFiles++;
+
+ //<if nonBrowser>
+ if (isNonBrowser) {
+ if (isNodeJS) {
+ require(filePath);
+ }
+ // Temporary support for hammerjs
+ else {
+ var f = fs.open(filePath),
+ content = '',
+ line;
+
+ while (true) {
+ line = f.readLine();
+ if (line.length === 0) {
+ break;
+ }
+ content += line;
+ }
+
+ f.close();
+ eval(content);
+ }
+
+ this.onFileLoaded(className, filePath);
+
+ if (ln === 1) {
+ return Manager.get(className);
+ }
+
+ continue;
+ }
+ //</if>
+ this.loadScriptFile(
+ filePath,
+ Ext.Function.pass(this.onFileLoaded, [className, filePath], this),
+ Ext.Function.pass(this.onFileLoadError, [className, filePath]),
+ this,
+ this.syncModeEnabled
+ );
+ }
+ }
+
+ return this;
+ },
+
+<span id='Ext-Loader-method-onFileLoaded'> /**
+</span> * @private
+ * @param {String} className
+ * @param {String} filePath
+ */
+ onFileLoaded: function(className, filePath) {
+ this.numLoadedFiles++;
+
+ this.isFileLoaded[className] = true;
+
+ this.numPendingFiles--;
+
+ if (this.numPendingFiles === 0) {
+ this.refreshQueue();
+ }
+
+ //<debug>
+ if (this.numPendingFiles <= 1) {
+ window.status = "Finished loading all dependencies, onReady fired!";
+ }
+ else {
+ window.status = "Loading dependencies, " + this.numPendingFiles + " files left...";
+ }
+ //</debug>
+
+ //<debug>
+ if (!this.syncModeEnabled && this.numPendingFiles === 0 && this.isLoading && !this.hasFileLoadError) {
+ var queue = this.queue,
+ requires,
+ i, ln, j, subLn, missingClasses = [], missingPaths = [];
+
+ for (i = 0, ln = queue.length; i < ln; i++) {
+ requires = queue[i].requires;
+
+ for (j = 0, subLn = requires.length; j < ln; j++) {
+ if (this.isFileLoaded[requires[j]]) {
+ missingClasses.push(requires[j]);
+ }
+ }
+ }
+
+ if (missingClasses.length < 1) {
+ return;
+ }
+
+ missingClasses = Ext.Array.filter(missingClasses, function(item) {
+ return !this.requiresMap.hasOwnProperty(item);
+ }, this);
+
+ for (i = 0,ln = missingClasses.length; i < ln; i++) {
+ missingPaths.push(this.classNameToFilePathMap[missingClasses[i]]);
+ }
+
+ Ext.Error.raise({
+ sourceClass: "Ext.Loader",
+ sourceMethod: "onFileLoaded",
+ msg: "The following classes are not declared even if their files have been " +
+ "loaded: '" + missingClasses.join("', '") + "'. Please check the source code of their " +
+ "corresponding files for possible typos: '" + missingPaths.join("', '") + "'"
+ });
+ }
+ //</debug>
+ },
+
+<span id='Ext-Loader-method-onFileLoadError'> /**
+</span> * @private
+ */
+ onFileLoadError: function(className, filePath, errorMessage, isSynchronous) {
+ this.numPendingFiles--;
+ this.hasFileLoadError = true;
+
+ //<debug error>
+ Ext.Error.raise({
+ sourceClass: "Ext.Loader",
+ classToLoad: className,
+ loadPath: filePath,
+ loadingType: isSynchronous ? 'synchronous' : 'async',
+ msg: errorMessage
+ });
+ //</debug>
+ },
+
+<span id='Ext-Loader-method-addOptionalRequires'> /**
+</span> * @private
+ */
+ addOptionalRequires: function(requires) {
+ var optionalRequires = this.optionalRequires,
+ i, ln, require;
+
+ requires = Ext.Array.from(requires);
+
+ for (i = 0, ln = requires.length; i < ln; i++) {
+ require = requires[i];
+
+ Ext.Array.include(optionalRequires, require);
+ }
+
+ return this;
+ },
+
+<span id='Ext-Loader-method-triggerReady'> /**
+</span> * @private
+ */
+ triggerReady: function(force) {
+ var readyListeners = this.readyListeners,
+ optionalRequires, listener;
+
+ if (this.isLoading || force) {
+ this.isLoading = false;
+
+ if (this.optionalRequires.length) {
+ // Clone then empty the array to eliminate potential recursive loop issue
+ optionalRequires = Ext.Array.clone(this.optionalRequires);
+
+ // Empty the original array
+ this.optionalRequires.length = 0;
+
+ this.require(optionalRequires, Ext.Function.pass(this.triggerReady, [true], this), this);
+ return this;
+ }
+
+ while (readyListeners.length) {
+ listener = readyListeners.shift();
+ listener.fn.call(listener.scope);
+
+ if (this.isLoading) {
+ return this;
+ }
+ }
+ }
+
+ return this;
+ },
+
+<span id='Ext-Loader-method-onReady'> /**
+</span> * Adds new listener to be executed when all required scripts are fully loaded.
+ *
+ * @param {Function} fn The function callback to be executed
+ * @param {Object} scope The execution scope (`this`) of the callback function
+ * @param {Boolean} withDomReady Whether or not to wait for document dom ready as well
+ */
+ onReady: function(fn, scope, withDomReady, options) {
+ var oldFn;
+
+ if (withDomReady !== false && Ext.onDocumentReady) {
+ oldFn = fn;
+
+ fn = function() {
+ Ext.onDocumentReady(oldFn, scope, options);
+ };
+ }
+
+ if (!this.isLoading) {
+ fn.call(scope);
+ }
+ else {
+ this.readyListeners.push({
+ fn: fn,
+ scope: scope
+ });
+ }
+ },
+
+<span id='Ext-Loader-method-historyPush'> /**
+</span> * @private
+ * @param {String} className
+ */
+ historyPush: function(className) {
+ if (className && this.isFileLoaded.hasOwnProperty(className)) {
+ Ext.Array.include(this.history, className);
+ }
+
+ return this;