3 * Copyright(c) 2006-2009 Ext JS, LLC
5 * http://www.extjs.com/license
9 window.undefined = window.undefined;
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13 * Ext core utilities and functions.
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19 * The version of the framework
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26 * Copies all the properties of config to obj.
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27 * @param {Object} obj The receiver of the properties
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28 * @param {Object} config The source of the properties
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29 * @param {Object} defaults A different object that will also be applied for default values
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30 * @return {Object} returns obj
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33 Ext.apply = function(o, c, defaults){
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34 // no "this" reference for friendly out of scope calls
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36 Ext.apply(o, defaults);
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38 if(o && c && typeof c == 'object'){
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48 toString = Object.prototype.toString,
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49 ua = navigator.userAgent.toLowerCase(),
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50 check = function(r){
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54 isStrict = DOC.compatMode == "CSS1Compat",
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55 isOpera = check(/opera/),
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56 isChrome = check(/chrome/),
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57 isWebKit = check(/webkit/),
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58 isSafari = !isChrome && check(/safari/),
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59 isSafari2 = isSafari && check(/applewebkit\/4/), // unique to Safari 2
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60 isSafari3 = isSafari && check(/version\/3/),
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61 isSafari4 = isSafari && check(/version\/4/),
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62 isIE = !isOpera && check(/msie/),
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63 isIE7 = isIE && check(/msie 7/),
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64 isIE8 = isIE && check(/msie 8/),
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65 isIE6 = isIE && !isIE7 && !isIE8,
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66 isGecko = !isWebKit && check(/gecko/),
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67 isGecko2 = isGecko && check(/rv:1\.8/),
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68 isGecko3 = isGecko && check(/rv:1\.9/),
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69 isBorderBox = isIE && !isStrict,
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70 isWindows = check(/windows|win32/),
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71 isMac = check(/macintosh|mac os x/),
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72 isAir = check(/adobeair/),
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73 isLinux = check(/linux/),
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74 isSecure = /^https/i.test(window.location.protocol);
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76 // remove css image flicker
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79 DOC.execCommand("BackgroundImageCache", false, true);
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85 * URL to a blank file used by Ext when in secure mode for iframe src and onReady src to prevent
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86 * the IE insecure content warning (<tt>'about:blank'</tt>, except for IE in secure mode, which is <tt>'javascript:""'</tt>).
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89 SSL_SECURE_URL : isSecure && isIE ? 'javascript:""' : 'about:blank',
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91 * True if the browser is in strict (standards-compliant) mode, as opposed to quirks mode
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94 isStrict : isStrict,
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96 * True if the page is running over SSL
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99 isSecure : isSecure,
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101 * True when the document is fully initialized and ready for action
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107 * True if the {@link Ext.Fx} Class is available
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109 * @property enableFx
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113 * True to automatically uncache orphaned Ext.Elements periodically (defaults to true)
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116 enableGarbageCollector : true,
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119 * True to automatically purge event listeners after uncaching an element (defaults to false).
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120 * Note: this only happens if {@link #enableGarbageCollector} is true.
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123 enableListenerCollection : false,
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126 * Indicates whether to use native browser parsing for JSON methods.
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127 * This option is ignored if the browser does not support native JSON methods.
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128 * <b>Note: Native JSON methods will not work with objects that have functions.
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129 * Also, property names must be quoted, otherwise the data will not parse.</b> (Defaults to false)
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132 USE_NATIVE_JSON : false,
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135 * Copies all the properties of config to obj if they don't already exist.
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136 * @param {Object} obj The receiver of the properties
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137 * @param {Object} config The source of the properties
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138 * @return {Object} returns obj
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140 applyIf : function(o, c){
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143 if(!Ext.isDefined(o[p])){
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152 * Generates unique ids. If the element already has an id, it is unchanged
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153 * @param {Mixed} el (optional) The element to generate an id for
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154 * @param {String} prefix (optional) Id prefix (defaults "ext-gen")
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155 * @return {String} The generated Id.
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157 id : function(el, prefix){
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158 return (el = Ext.getDom(el) || {}).id = el.id || (prefix || "ext-gen") + (++idSeed);
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162 * <p>Extends one class to create a subclass and optionally overrides members with the passed literal. This method
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163 * also adds the function "override()" to the subclass that can be used to override members of the class.</p>
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164 * For example, to create a subclass of Ext GridPanel:
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166 MyGridPanel = Ext.extend(Ext.grid.GridPanel, {
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167 constructor: function(config) {
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169 // Create configuration for this Grid.
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170 var store = new Ext.data.Store({...});
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171 var colModel = new Ext.grid.ColumnModel({...});
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173 // Create a new config object containing our computed properties
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174 // *plus* whatever was in the config parameter.
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175 config = Ext.apply({
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180 MyGridPanel.superclass.constructor.call(this, config);
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182 // Your postprocessing here
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185 yourMethod: function() {
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191 * <p>This function also supports a 3-argument call in which the subclass's constructor is
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192 * passed as an argument. In this form, the parameters are as follows:</p>
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193 * <div class="mdetail-params"><ul>
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194 * <li><code>subclass</code> : Function <div class="sub-desc">The subclass constructor.</div></li>
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195 * <li><code>superclass</code> : Function <div class="sub-desc">The constructor of class being extended</div></li>
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196 * <li><code>overrides</code> : Object <div class="sub-desc">A literal with members which are copied into the subclass's
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197 * prototype, and are therefore shared among all instances of the new class.</div></li>
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200 * @param {Function} subclass The constructor of class being extended.
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201 * @param {Object} overrides <p>A literal with members which are copied into the subclass's
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202 * prototype, and are therefore shared between all instances of the new class.</p>
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203 * <p>This may contain a special member named <tt><b>constructor</b></tt>. This is used
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204 * to define the constructor of the new class, and is returned. If this property is
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205 * <i>not</i> specified, a constructor is generated and returned which just calls the
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206 * superclass's constructor passing on its parameters.</p>
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207 * <p><b>It is essential that you call the superclass constructor in any provided constructor. See example code.</b></p>
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208 * @return {Function} The subclass constructor.
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210 extend : function(){
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211 // inline overrides
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212 var io = function(o){
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217 var oc = Object.prototype.constructor;
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219 return function(sb, sp, overrides){
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220 if(Ext.isObject(sp)){
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223 sb = overrides.constructor != oc ? overrides.constructor : function(){sp.apply(this, arguments);};
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225 var F = function(){},
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227 spp = sp.prototype;
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230 sbp = sb.prototype = new F();
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231 sbp.constructor=sb;
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233 if(spp.constructor == oc){
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234 spp.constructor=sp;
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236 sb.override = function(o){
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237 Ext.override(sb, o);
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239 sbp.superclass = sbp.supr = (function(){
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243 Ext.override(sb, overrides);
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244 sb.extend = function(o){return Ext.extend(sb, o);};
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250 * Adds a list of functions to the prototype of an existing class, overwriting any existing methods with the same name.
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251 * Usage:<pre><code>
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252 Ext.override(MyClass, {
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253 newMethod1: function(){
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256 newMethod2: function(foo){
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261 * @param {Object} origclass The class to override
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262 * @param {Object} overrides The list of functions to add to origClass. This should be specified as an object literal
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263 * containing one or more methods.
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266 override : function(origclass, overrides){
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268 var p = origclass.prototype;
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269 Ext.apply(p, overrides);
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270 if(Ext.isIE && overrides.toString != origclass.toString){
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271 p.toString = overrides.toString;
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277 * Creates namespaces to be used for scoping variables and classes so that they are not global.
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278 * Specifying the last node of a namespace implicitly creates all other nodes. Usage:
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280 Ext.namespace('Company', 'Company.data');
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281 Ext.namespace('Company.data'); // equivalent and preferable to above syntax
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282 Company.Widget = function() { ... }
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283 Company.data.CustomStore = function(config) { ... }
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285 * @param {String} namespace1
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286 * @param {String} namespace2
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287 * @param {String} etc
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288 * @return {Object} The namespace object. (If multiple arguments are passed, this will be the last namespace created)
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289 * @method namespace
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291 namespace : function(){
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293 Ext.each(arguments, function(v) {
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295 o = window[d[0]] = window[d[0]] || {};
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296 Ext.each(d.slice(1), function(v2){
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297 o = o[v2] = o[v2] || {};
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304 * Takes an object and converts it to an encoded URL. e.g. Ext.urlEncode({foo: 1, bar: 2}); would return "foo=1&bar=2". Optionally, property values can be arrays, instead of keys and the resulting string that's returned will contain a name/value pair for each array value.
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305 * @param {Object} o
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306 * @param {String} pre (optional) A prefix to add to the url encoded string
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309 urlEncode : function(o, pre){
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312 e = encodeURIComponent;
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314 Ext.iterate(o, function(key, item){
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315 empty = Ext.isEmpty(item);
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316 Ext.each(empty ? key : item, function(val){
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317 buf.push('&', e(key), '=', (!Ext.isEmpty(val) && (val != key || !empty)) ? (Ext.isDate(val) ? Ext.encode(val).replace(/"/g, '') : e(val)) : '');
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324 return pre + buf.join('');
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328 * Takes an encoded URL and and converts it to an object. Example: <pre><code>
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329 Ext.urlDecode("foo=1&bar=2"); // returns {foo: "1", bar: "2"}
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330 Ext.urlDecode("foo=1&bar=2&bar=3&bar=4", false); // returns {foo: "1", bar: ["2", "3", "4"]}
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332 * @param {String} string
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333 * @param {Boolean} overwrite (optional) Items of the same name will overwrite previous values instead of creating an an array (Defaults to false).
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334 * @return {Object} A literal with members
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336 urlDecode : function(string, overwrite){
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337 if(Ext.isEmpty(string)){
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341 pairs = string.split('&'),
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342 d = decodeURIComponent,
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345 Ext.each(pairs, function(pair) {
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346 pair = pair.split('=');
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348 value = d(pair[1]);
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349 obj[name] = overwrite || !obj[name] ? value :
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350 [].concat(obj[name]).concat(value);
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356 * Appends content to the query string of a URL, handling logic for whether to place
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357 * a question mark or ampersand.
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358 * @param {String} url The URL to append to.
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359 * @param {String} s The content to append to the URL.
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360 * @return (String) The resulting URL
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362 urlAppend : function(url, s){
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363 if(!Ext.isEmpty(s)){
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364 return url + (url.indexOf('?') === -1 ? '?' : '&') + s;
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370 * Converts any iterable (numeric indices and a length property) into a true array
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371 * Don't use this on strings. IE doesn't support "abc"[0] which this implementation depends on.
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372 * For strings, use this instead: "abc".match(/./g) => [a,b,c];
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373 * @param {Iterable} the iterable object to be turned into a true Array.
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374 * @return (Array) array
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376 toArray : function(){
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378 function(a, i, j, res){
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380 Ext.each(a, function(v) {
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383 return res.slice(i || 0, j || res.length);
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386 return Array.prototype.slice.call(a, i || 0, j || a.length);
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390 isIterable : function(v){
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391 //check for array or arguments
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392 if(Ext.isArray(v) || v.callee){
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395 //check for node list type
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396 if(/NodeList|HTMLCollection/.test(toString.call(v))){
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399 //NodeList has an item and length property
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400 //IXMLDOMNodeList has nextNode method, needs to be checked first.
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401 return ((v.nextNode || v.item) && Ext.isNumber(v.length));
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405 * Iterates an array calling the supplied function.
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406 * @param {Array/NodeList/Mixed} array The array to be iterated. If this
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407 * argument is not really an array, the supplied function is called once.
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408 * @param {Function} fn The function to be called with each item. If the
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409 * supplied function returns false, iteration stops and this method returns
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410 * the current <code>index</code>. This function is called with
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411 * the following arguments:
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412 * <div class="mdetail-params"><ul>
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413 * <li><code>item</code> : <i>Mixed</i>
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414 * <div class="sub-desc">The item at the current <code>index</code>
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415 * in the passed <code>array</code></div></li>
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416 * <li><code>index</code> : <i>Number</i>
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417 * <div class="sub-desc">The current index within the array</div></li>
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418 * <li><code>allItems</code> : <i>Array</i>
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419 * <div class="sub-desc">The <code>array</code> passed as the first
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420 * argument to <code>Ext.each</code>.</div></li>
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422 * @param {Object} scope The scope (<code>this</code> reference) in which the specified function is executed.
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423 * Defaults to the <code>item</code> at the current <code>index</code>
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424 * within the passed <code>array</code>.
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425 * @return See description for the fn parameter.
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427 each : function(array, fn, scope){
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428 if(Ext.isEmpty(array, true)){
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431 if(!Ext.isIterable(array) || Ext.isPrimitive(array)){
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434 for(var i = 0, len = array.length; i < len; i++){
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435 if(fn.call(scope || array[i], array[i], i, array) === false){
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442 * Iterates either the elements in an array, or each of the properties in an object.
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443 * <b>Note</b>: If you are only iterating arrays, it is better to call {@link #each}.
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444 * @param {Object/Array} object The object or array to be iterated
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445 * @param {Function} fn The function to be called for each iteration.
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446 * The iteration will stop if the supplied function returns false, or
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447 * all array elements / object properties have been covered. The signature
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448 * varies depending on the type of object being interated:
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449 * <div class="mdetail-params"><ul>
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450 * <li>Arrays : <tt>(Object item, Number index, Array allItems)</tt>
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451 * <div class="sub-desc">
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452 * When iterating an array, the supplied function is called with each item.</div></li>
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453 * <li>Objects : <tt>(String key, Object value)</tt>
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454 * <div class="sub-desc">
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455 * When iterating an object, the supplied function is called with each key-value pair in
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456 * the object.</div></li>
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458 * @param {Object} scope The scope (<code>this</code> reference) in which the specified function is executed. Defaults to
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459 * the <code>object</code> being iterated.
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461 iterate : function(obj, fn, scope){
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462 if(Ext.isEmpty(obj)){
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465 if(Ext.isIterable(obj)){
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466 Ext.each(obj, fn, scope);
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468 }else if(Ext.isObject(obj)){
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469 for(var prop in obj){
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470 if(obj.hasOwnProperty(prop)){
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471 if(fn.call(scope || obj, prop, obj[prop]) === false){
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480 * Return the dom node for the passed String (id), dom node, or Ext.Element.
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481 * Here are some examples:
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483 // gets dom node based on id
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484 var elDom = Ext.getDom('elId');
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485 // gets dom node based on the dom node
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486 var elDom1 = Ext.getDom(elDom);
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488 // If we don't know if we are working with an
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489 // Ext.Element or a dom node use Ext.getDom
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491 var dom = Ext.getDom(el);
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492 // do something with the dom node
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495 * <b>Note</b>: the dom node to be found actually needs to exist (be rendered, etc)
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496 * when this method is called to be successful.
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497 * @param {Mixed} el
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498 * @return HTMLElement
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500 getDom : function(el){
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504 return el.dom ? el.dom : (Ext.isString(el) ? DOC.getElementById(el) : el);
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508 * Returns the current document body as an {@link Ext.Element}.
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509 * @return Ext.Element The document body
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511 getBody : function(){
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512 return Ext.get(DOC.body || DOC.documentElement);
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516 * Removes a DOM node from the document. The body node will be ignored if passed in.
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517 * @param {HTMLElement} node The node to remove
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519 removeNode : isIE ? function(){
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521 return function(n){
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522 if(n && n.tagName != 'BODY'){
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523 d = d || DOC.createElement('div');
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529 if(n && n.parentNode && n.tagName != 'BODY'){
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530 n.parentNode.removeChild(n);
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535 * <p>Returns true if the passed value is empty.</p>
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536 * <p>The value is deemed to be empty if it is<div class="mdetail-params"><ul>
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538 * <li>undefined</li>
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539 * <li>an empty array</li>
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540 * <li>a zero length string (Unless the <tt>allowBlank</tt> parameter is <tt>true</tt>)</li>
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542 * @param {Mixed} value The value to test
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543 * @param {Boolean} allowBlank (optional) true to allow empty strings (defaults to false)
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544 * @return {Boolean}
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546 isEmpty : function(v, allowBlank){
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547 return v === null || v === undefined || ((Ext.isArray(v) && !v.length)) || (!allowBlank ? v === '' : false);
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551 * Returns true if the passed value is a JavaScript array, otherwise false.
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552 * @param {Mixed} value The value to test
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553 * @return {Boolean}
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555 isArray : function(v){
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556 return toString.apply(v) === '[object Array]';
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560 * Returns true if the passed object is a JavaScript date object, otherwise false.
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561 * @param {Object} object The object to test
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562 * @return {Boolean}
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564 isDate : function(v){
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565 return toString.apply(v) === '[object Date]';
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569 * Returns true if the passed value is a JavaScript Object, otherwise false.
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570 * @param {Mixed} value The value to test
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571 * @return {Boolean}
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573 isObject : function(v){
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574 return v && typeof v == "object";
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578 * Returns true if the passed value is a JavaScript 'primitive', a string, number or boolean.
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579 * @param {Mixed} value The value to test
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580 * @return {Boolean}
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582 isPrimitive : function(v){
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583 return Ext.isString(v) || Ext.isNumber(v) || Ext.isBoolean(v);
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587 * Returns true if the passed value is a JavaScript Function, otherwise false.
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588 * @param {Mixed} value The value to test
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589 * @return {Boolean}
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591 isFunction : function(v){
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592 return toString.apply(v) === '[object Function]';
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596 * Returns true if the passed value is a number. Returns false for non-finite numbers.
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597 * @param {Mixed} value The value to test
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598 * @return {Boolean}
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600 isNumber : function(v){
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601 return typeof v === 'number' && isFinite(v);
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605 * Returns true if the passed value is a string.
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606 * @param {Mixed} value The value to test
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607 * @return {Boolean}
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609 isString : function(v){
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610 return typeof v === 'string';
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614 * Returns true if the passed value is a boolean.
\r
615 * @param {Mixed} value The value to test
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616 * @return {Boolean}
\r
618 isBoolean : function(v){
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619 return typeof v === 'boolean';
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623 * Returns true if the passed value is not undefined.
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624 * @param {Mixed} value The value to test
\r
625 * @return {Boolean}
\r
627 isDefined : function(v){
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628 return typeof v !== 'undefined';
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632 * True if the detected browser is Opera.
\r
637 * True if the detected browser uses WebKit.
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640 isWebKit : isWebKit,
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642 * True if the detected browser is Chrome.
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645 isChrome : isChrome,
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647 * True if the detected browser is Safari.
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650 isSafari : isSafari,
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652 * True if the detected browser is Safari 3.x.
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655 isSafari3 : isSafari3,
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657 * True if the detected browser is Safari 4.x.
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660 isSafari4 : isSafari4,
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662 * True if the detected browser is Safari 2.x.
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665 isSafari2 : isSafari2,
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667 * True if the detected browser is Internet Explorer.
\r
672 * True if the detected browser is Internet Explorer 6.x.
\r
677 * True if the detected browser is Internet Explorer 7.x.
\r
682 * True if the detected browser is Internet Explorer 8.x.
\r
687 * True if the detected browser uses the Gecko layout engine (e.g. Mozilla, Firefox).
\r
692 * True if the detected browser uses a pre-Gecko 1.9 layout engine (e.g. Firefox 2.x).
\r
695 isGecko2 : isGecko2,
\r
697 * True if the detected browser uses a Gecko 1.9+ layout engine (e.g. Firefox 3.x).
\r
700 isGecko3 : isGecko3,
\r
702 * True if the detected browser is Internet Explorer running in non-strict mode.
\r
705 isBorderBox : isBorderBox,
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707 * True if the detected platform is Linux.
\r
712 * True if the detected platform is Windows.
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715 isWindows : isWindows,
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717 * True if the detected platform is Mac OS.
\r
722 * True if the detected platform is Adobe Air.
\r
729 * Creates namespaces to be used for scoping variables and classes so that they are not global.
\r
730 * Specifying the last node of a namespace implicitly creates all other nodes. Usage:
\r
732 Ext.namespace('Company', 'Company.data');
\r
733 Ext.namespace('Company.data'); // equivalent and preferable to above syntax
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734 Company.Widget = function() { ... }
\r
735 Company.data.CustomStore = function(config) { ... }
\r
737 * @param {String} namespace1
\r
738 * @param {String} namespace2
\r
739 * @param {String} etc
\r
740 * @return {Object} The namespace object. (If multiple arguments are passed, this will be the last namespace created)
\r
743 Ext.ns = Ext.namespace;
\r
746 Ext.ns("Ext", "Ext.util", "Ext.lib", "Ext.data");
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751 * These functions are available on every Function object (any JavaScript function).
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753 Ext.apply(Function.prototype, {
\r
755 * Creates an interceptor function. The passed function is called before the original one. If it returns false,
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756 * the original one is not called. The resulting function returns the results of the original function.
\r
757 * The passed function is called with the parameters of the original function. Example usage:
\r
759 var sayHi = function(name){
\r
760 alert('Hi, ' + name);
\r
763 sayHi('Fred'); // alerts "Hi, Fred"
\r
765 // create a new function that validates input without
\r
766 // directly modifying the original function:
\r
767 var sayHiToFriend = sayHi.createInterceptor(function(name){
\r
768 return name == 'Brian';
\r
771 sayHiToFriend('Fred'); // no alert
\r
772 sayHiToFriend('Brian'); // alerts "Hi, Brian"
\r
774 * @param {Function} fcn The function to call before the original
\r
775 * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the passed function is executed.
\r
776 * <b>If omitted, defaults to the scope in which the original function is called or the browser window.</b>
\r
777 * @return {Function} The new function
\r
779 createInterceptor : function(fcn, scope){
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781 return !Ext.isFunction(fcn) ?
\r
787 fcn.method = method;
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788 return (fcn.apply(scope || me || window, args) !== false) ?
\r
789 method.apply(me || window, args) :
\r
795 * Creates a callback that passes arguments[0], arguments[1], arguments[2], ...
\r
796 * Call directly on any function. Example: <code>myFunction.createCallback(arg1, arg2)</code>
\r
797 * Will create a function that is bound to those 2 args. <b>If a specific scope is required in the
\r
798 * callback, use {@link #createDelegate} instead.</b> The function returned by createCallback always
\r
799 * executes in the window scope.
\r
800 * <p>This method is required when you want to pass arguments to a callback function. If no arguments
\r
801 * are needed, you can simply pass a reference to the function as a callback (e.g., callback: myFn).
\r
802 * However, if you tried to pass a function with arguments (e.g., callback: myFn(arg1, arg2)) the function
\r
803 * would simply execute immediately when the code is parsed. Example usage:
\r
805 var sayHi = function(name){
\r
806 alert('Hi, ' + name);
\r
809 // clicking the button alerts "Hi, Fred"
\r
812 renderTo: Ext.getBody(),
\r
813 handler: sayHi.createCallback('Fred')
\r
816 * @return {Function} The new function
\r
818 createCallback : function(/*args...*/){
\r
819 // make args available, in function below
\r
820 var args = arguments,
\r
822 return function() {
\r
823 return method.apply(window, args);
\r
828 * Creates a delegate (callback) that sets the scope to obj.
\r
829 * Call directly on any function. Example: <code>this.myFunction.createDelegate(this, [arg1, arg2])</code>
\r
830 * Will create a function that is automatically scoped to obj so that the <tt>this</tt> variable inside the
\r
831 * callback points to obj. Example usage:
\r
833 var sayHi = function(name){
\r
834 // Note this use of "this.text" here. This function expects to
\r
835 // execute within a scope that contains a text property. In this
\r
836 // example, the "this" variable is pointing to the btn object that
\r
837 // was passed in createDelegate below.
\r
838 alert('Hi, ' + name + '. You clicked the "' + this.text + '" button.');
\r
841 var btn = new Ext.Button({
\r
843 renderTo: Ext.getBody()
\r
846 // This callback will execute in the scope of the
\r
847 // button instance. Clicking the button alerts
\r
848 // "Hi, Fred. You clicked the "Say Hi" button."
\r
849 btn.on('click', sayHi.createDelegate(btn, ['Fred']));
\r
851 * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the function is executed.
\r
852 * <b>If omitted, defaults to the browser window.</b>
\r
853 * @param {Array} args (optional) Overrides arguments for the call. (Defaults to the arguments passed by the caller)
\r
854 * @param {Boolean/Number} appendArgs (optional) if True args are appended to call args instead of overriding,
\r
855 * if a number the args are inserted at the specified position
\r
856 * @return {Function} The new function
\r
858 createDelegate : function(obj, args, appendArgs){
\r
860 return function() {
\r
861 var callArgs = args || arguments;
\r
862 if (appendArgs === true){
\r
863 callArgs = Array.prototype.slice.call(arguments, 0);
\r
864 callArgs = callArgs.concat(args);
\r
865 }else if (Ext.isNumber(appendArgs)){
\r
866 callArgs = Array.prototype.slice.call(arguments, 0); // copy arguments first
\r
867 var applyArgs = [appendArgs, 0].concat(args); // create method call params
\r
868 Array.prototype.splice.apply(callArgs, applyArgs); // splice them in
\r
870 return method.apply(obj || window, callArgs);
\r
875 * Calls this function after the number of millseconds specified, optionally in a specific scope. Example usage:
\r
877 var sayHi = function(name){
\r
878 alert('Hi, ' + name);
\r
881 // executes immediately:
\r
884 // executes after 2 seconds:
\r
885 sayHi.defer(2000, this, ['Fred']);
\r
887 // this syntax is sometimes useful for deferring
\r
888 // execution of an anonymous function:
\r
890 alert('Anonymous');
\r
893 * @param {Number} millis The number of milliseconds for the setTimeout call (if less than or equal to 0 the function is executed immediately)
\r
894 * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the function is executed.
\r
895 * <b>If omitted, defaults to the browser window.</b>
\r
896 * @param {Array} args (optional) Overrides arguments for the call. (Defaults to the arguments passed by the caller)
\r
897 * @param {Boolean/Number} appendArgs (optional) if True args are appended to call args instead of overriding,
\r
898 * if a number the args are inserted at the specified position
\r
899 * @return {Number} The timeout id that can be used with clearTimeout
\r
901 defer : function(millis, obj, args, appendArgs){
\r
902 var fn = this.createDelegate(obj, args, appendArgs);
\r
904 return setTimeout(fn, millis);
\r
913 * These functions are available on every String object.
\r
915 Ext.applyIf(String, {
\r
917 * Allows you to define a tokenized string and pass an arbitrary number of arguments to replace the tokens. Each
\r
918 * token must be unique, and must increment in the format {0}, {1}, etc. Example usage:
\r
920 var cls = 'my-class', text = 'Some text';
\r
921 var s = String.format('<div class="{0}">{1}</div>', cls, text);
\r
922 // s now contains the string: '<div class="my-class">Some text</div>'
\r
924 * @param {String} string The tokenized string to be formatted
\r
925 * @param {String} value1 The value to replace token {0}
\r
926 * @param {String} value2 Etc...
\r
927 * @return {String} The formatted string
\r
930 format : function(format){
\r
931 var args = Ext.toArray(arguments, 1);
\r
932 return format.replace(/\{(\d+)\}/g, function(m, i){
\r
941 Ext.applyIf(Array.prototype, {
\r
943 * Checks whether or not the specified object exists in the array.
\r
944 * @param {Object} o The object to check for
\r
945 * @param {Number} from (Optional) The index at which to begin the search
\r
946 * @return {Number} The index of o in the array (or -1 if it is not found)
\r
948 indexOf : function(o, from){
\r
949 var len = this.length;
\r
951 from += (from < 0) ? len : 0;
\r
952 for (; from < len; ++from){
\r
953 if(this[from] === o){
\r
961 * Removes the specified object from the array. If the object is not found nothing happens.
\r
962 * @param {Object} o The object to remove
\r
963 * @return {Array} this array
\r
965 remove : function(o){
\r
966 var index = this.indexOf(o);
\r
968 this.splice(index, 1);
\r