[76] | 1 | /*! |
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| 2 | * Ext JS Library 3.4.0 |
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| 3 | * Copyright(c) 2006-2011 Sencha Inc. |
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| 4 | * licensing@sencha.com |
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| 5 | * http://www.sencha.com/license |
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| 6 | */ |
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| 7 | /** |
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| 8 | * @class Ext |
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| 9 | */ |
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| 10 | |
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| 11 | Ext.ns("Ext.grid", "Ext.list", "Ext.dd", "Ext.tree", "Ext.form", "Ext.menu", |
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| 12 | "Ext.state", "Ext.layout.boxOverflow", "Ext.app", "Ext.ux", "Ext.chart", "Ext.direct", "Ext.slider"); |
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| 13 | /** |
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| 14 | * Namespace alloted for extensions to the framework. |
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| 15 | * @property ux |
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| 16 | * @type Object |
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| 17 | */ |
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| 18 | |
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| 19 | Ext.apply(Ext, function(){ |
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| 20 | var E = Ext, |
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| 21 | idSeed = 0, |
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| 22 | scrollWidth = null; |
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| 23 | |
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| 24 | return { |
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| 25 | /** |
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| 26 | * A reusable empty function |
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| 27 | * @property |
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| 28 | * @type Function |
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| 29 | */ |
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| 30 | emptyFn : function(){}, |
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| 31 | |
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| 32 | /** |
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| 33 | * URL to a 1x1 transparent gif image used by Ext to create inline icons with CSS background images. |
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| 34 | * In older versions of IE, this defaults to "http://extjs.com/s.gif" and you should change this to a URL on your server. |
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| 35 | * For other browsers it uses an inline data URL. |
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| 36 | * @type String |
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| 37 | */ |
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| 38 | BLANK_IMAGE_URL : Ext.isIE6 || Ext.isIE7 || Ext.isAir ? |
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| 39 | 'http:/' + '/www.extjs.com/s.gif' : |
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| 40 | 'data:image/gif;base64,R0lGODlhAQABAID/AMDAwAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==', |
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| 41 | |
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| 42 | extendX : function(supr, fn){ |
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| 43 | return Ext.extend(supr, fn(supr.prototype)); |
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| 44 | }, |
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| 45 | |
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| 46 | /** |
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| 47 | * Returns the current HTML document object as an {@link Ext.Element}. |
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| 48 | * @return Ext.Element The document |
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| 49 | */ |
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| 50 | getDoc : function(){ |
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| 51 | return Ext.get(document); |
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| 52 | }, |
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| 53 | |
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| 54 | /** |
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| 55 | * Utility method for validating that a value is numeric, returning the specified default value if it is not. |
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| 56 | * @param {Mixed} value Should be a number, but any type will be handled appropriately |
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| 57 | * @param {Number} defaultValue The value to return if the original value is non-numeric |
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| 58 | * @return {Number} Value, if numeric, else defaultValue |
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| 59 | */ |
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| 60 | num : function(v, defaultValue){ |
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| 61 | v = Number(Ext.isEmpty(v) || Ext.isArray(v) || typeof v == 'boolean' || (typeof v == 'string' && v.trim().length == 0) ? NaN : v); |
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| 62 | return isNaN(v) ? defaultValue : v; |
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| 63 | }, |
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| 64 | |
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| 65 | /** |
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| 66 | * <p>Utility method for returning a default value if the passed value is empty.</p> |
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| 67 | * <p>The value is deemed to be empty if it is<div class="mdetail-params"><ul> |
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| 68 | * <li>null</li> |
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| 69 | * <li>undefined</li> |
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| 70 | * <li>an empty array</li> |
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| 71 | * <li>a zero length string (Unless the <tt>allowBlank</tt> parameter is <tt>true</tt>)</li> |
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| 72 | * </ul></div> |
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| 73 | * @param {Mixed} value The value to test |
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| 74 | * @param {Mixed} defaultValue The value to return if the original value is empty |
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| 75 | * @param {Boolean} allowBlank (optional) true to allow zero length strings to qualify as non-empty (defaults to false) |
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| 76 | * @return {Mixed} value, if non-empty, else defaultValue |
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| 77 | */ |
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| 78 | value : function(v, defaultValue, allowBlank){ |
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| 79 | return Ext.isEmpty(v, allowBlank) ? defaultValue : v; |
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| 80 | }, |
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| 81 | |
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| 82 | /** |
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| 83 | * Escapes the passed string for use in a regular expression |
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| 84 | * @param {String} str |
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| 85 | * @return {String} |
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| 86 | */ |
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| 87 | escapeRe : function(s) { |
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| 88 | return s.replace(/([-.*+?^${}()|[\]\/\\])/g, "\\$1"); |
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| 89 | }, |
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| 90 | |
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| 91 | sequence : function(o, name, fn, scope){ |
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| 92 | o[name] = o[name].createSequence(fn, scope); |
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| 93 | }, |
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| 94 | |
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| 95 | /** |
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| 96 | * Applies event listeners to elements by selectors when the document is ready. |
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| 97 | * The event name is specified with an <tt>@</tt> suffix. |
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| 98 | * <pre><code> |
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| 99 | Ext.addBehaviors({ |
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| 100 | // add a listener for click on all anchors in element with id foo |
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| 101 | '#foo a@click' : function(e, t){ |
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| 102 | // do something |
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| 103 | }, |
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| 104 | |
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| 105 | // add the same listener to multiple selectors (separated by comma BEFORE the @) |
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| 106 | '#foo a, #bar span.some-class@mouseover' : function(){ |
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| 107 | // do something |
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| 108 | } |
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| 109 | }); |
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| 110 | * </code></pre> |
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| 111 | * @param {Object} obj The list of behaviors to apply |
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| 112 | */ |
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| 113 | addBehaviors : function(o){ |
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| 114 | if(!Ext.isReady){ |
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| 115 | Ext.onReady(function(){ |
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| 116 | Ext.addBehaviors(o); |
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| 117 | }); |
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| 118 | } else { |
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| 119 | var cache = {}, // simple cache for applying multiple behaviors to same selector does query multiple times |
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| 120 | parts, |
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| 121 | b, |
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| 122 | s; |
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| 123 | for (b in o) { |
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| 124 | if ((parts = b.split('@'))[1]) { // for Object prototype breakers |
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| 125 | s = parts[0]; |
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| 126 | if(!cache[s]){ |
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| 127 | cache[s] = Ext.select(s); |
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| 128 | } |
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| 129 | cache[s].on(parts[1], o[b]); |
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| 130 | } |
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| 131 | } |
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| 132 | cache = null; |
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| 133 | } |
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| 134 | }, |
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| 135 | |
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| 136 | /** |
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| 137 | * Utility method for getting the width of the browser scrollbar. This can differ depending on |
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| 138 | * operating system settings, such as the theme or font size. |
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| 139 | * @param {Boolean} force (optional) true to force a recalculation of the value. |
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| 140 | * @return {Number} The width of the scrollbar. |
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| 141 | */ |
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| 142 | getScrollBarWidth: function(force){ |
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| 143 | if(!Ext.isReady){ |
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| 144 | return 0; |
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| 145 | } |
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| 146 | |
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| 147 | if(force === true || scrollWidth === null){ |
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| 148 | // Append our div, do our calculation and then remove it |
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| 149 | var div = Ext.getBody().createChild('<div class="x-hide-offsets" style="width:100px;height:50px;overflow:hidden;"><div style="height:200px;"></div></div>'), |
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| 150 | child = div.child('div', true); |
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| 151 | var w1 = child.offsetWidth; |
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| 152 | div.setStyle('overflow', (Ext.isWebKit || Ext.isGecko) ? 'auto' : 'scroll'); |
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| 153 | var w2 = child.offsetWidth; |
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| 154 | div.remove(); |
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| 155 | // Need to add 2 to ensure we leave enough space |
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| 156 | scrollWidth = w1 - w2 + 2; |
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| 157 | } |
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| 158 | return scrollWidth; |
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| 159 | }, |
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| 160 | |
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| 161 | |
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| 162 | // deprecated |
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| 163 | combine : function(){ |
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| 164 | var as = arguments, l = as.length, r = []; |
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| 165 | for(var i = 0; i < l; i++){ |
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| 166 | var a = as[i]; |
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| 167 | if(Ext.isArray(a)){ |
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| 168 | r = r.concat(a); |
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| 169 | }else if(a.length !== undefined && !a.substr){ |
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| 170 | r = r.concat(Array.prototype.slice.call(a, 0)); |
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| 171 | }else{ |
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| 172 | r.push(a); |
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| 173 | } |
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| 174 | } |
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| 175 | return r; |
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| 176 | }, |
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| 177 | |
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| 178 | /** |
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| 179 | * Copies a set of named properties fom the source object to the destination object. |
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| 180 | * <p>example:<pre><code> |
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| 181 | ImageComponent = Ext.extend(Ext.BoxComponent, { |
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| 182 | initComponent: function() { |
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| 183 | this.autoEl = { tag: 'img' }; |
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| 184 | MyComponent.superclass.initComponent.apply(this, arguments); |
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| 185 | this.initialBox = Ext.copyTo({}, this.initialConfig, 'x,y,width,height'); |
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| 186 | } |
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| 187 | }); |
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| 188 | * </code></pre> |
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| 189 | * @param {Object} dest The destination object. |
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| 190 | * @param {Object} source The source object. |
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| 191 | * @param {Array/String} names Either an Array of property names, or a comma-delimited list |
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| 192 | * of property names to copy. |
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| 193 | * @return {Object} The modified object. |
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| 194 | */ |
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| 195 | copyTo : function(dest, source, names){ |
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| 196 | if(typeof names == 'string'){ |
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| 197 | names = names.split(/[,;\s]/); |
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| 198 | } |
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| 199 | Ext.each(names, function(name){ |
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| 200 | if(source.hasOwnProperty(name)){ |
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| 201 | dest[name] = source[name]; |
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| 202 | } |
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| 203 | }, this); |
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| 204 | return dest; |
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| 205 | }, |
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| 206 | |
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| 207 | /** |
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| 208 | * Attempts to destroy any objects passed to it by removing all event listeners, removing them from the |
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| 209 | * DOM (if applicable) and calling their destroy functions (if available). This method is primarily |
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| 210 | * intended for arguments of type {@link Ext.Element} and {@link Ext.Component}, but any subclass of |
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| 211 | * {@link Ext.util.Observable} can be passed in. Any number of elements and/or components can be |
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| 212 | * passed into this function in a single call as separate arguments. |
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| 213 | * @param {Mixed} arg1 An {@link Ext.Element}, {@link Ext.Component}, or an Array of either of these to destroy |
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| 214 | * @param {Mixed} arg2 (optional) |
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| 215 | * @param {Mixed} etc... (optional) |
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| 216 | */ |
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| 217 | destroy : function(){ |
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| 218 | Ext.each(arguments, function(arg){ |
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| 219 | if(arg){ |
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| 220 | if(Ext.isArray(arg)){ |
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| 221 | this.destroy.apply(this, arg); |
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| 222 | }else if(typeof arg.destroy == 'function'){ |
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| 223 | arg.destroy(); |
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| 224 | }else if(arg.dom){ |
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| 225 | arg.remove(); |
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| 226 | } |
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| 227 | } |
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| 228 | }, this); |
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| 229 | }, |
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| 230 | |
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| 231 | /** |
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| 232 | * Attempts to destroy and then remove a set of named properties of the passed object. |
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| 233 | * @param {Object} o The object (most likely a Component) who's properties you wish to destroy. |
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| 234 | * @param {Mixed} arg1 The name of the property to destroy and remove from the object. |
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| 235 | * @param {Mixed} etc... More property names to destroy and remove. |
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| 236 | */ |
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| 237 | destroyMembers : function(o, arg1, arg2, etc){ |
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| 238 | for(var i = 1, a = arguments, len = a.length; i < len; i++) { |
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| 239 | Ext.destroy(o[a[i]]); |
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| 240 | delete o[a[i]]; |
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| 241 | } |
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| 242 | }, |
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| 243 | |
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| 244 | /** |
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| 245 | * Creates a copy of the passed Array with falsy values removed. |
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| 246 | * @param {Array/NodeList} arr The Array from which to remove falsy values. |
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| 247 | * @return {Array} The new, compressed Array. |
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| 248 | */ |
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| 249 | clean : function(arr){ |
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| 250 | var ret = []; |
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| 251 | Ext.each(arr, function(v){ |
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| 252 | if(!!v){ |
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| 253 | ret.push(v); |
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| 254 | } |
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| 255 | }); |
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| 256 | return ret; |
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| 257 | }, |
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| 258 | |
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| 259 | /** |
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| 260 | * Creates a copy of the passed Array, filtered to contain only unique values. |
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| 261 | * @param {Array} arr The Array to filter |
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| 262 | * @return {Array} The new Array containing unique values. |
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| 263 | */ |
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| 264 | unique : function(arr){ |
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| 265 | var ret = [], |
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| 266 | collect = {}; |
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| 267 | |
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| 268 | Ext.each(arr, function(v) { |
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| 269 | if(!collect[v]){ |
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| 270 | ret.push(v); |
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| 271 | } |
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| 272 | collect[v] = true; |
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| 273 | }); |
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| 274 | return ret; |
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| 275 | }, |
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| 276 | |
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| 277 | /** |
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| 278 | * Recursively flattens into 1-d Array. Injects Arrays inline. |
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| 279 | * @param {Array} arr The array to flatten |
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| 280 | * @return {Array} The new, flattened array. |
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| 281 | */ |
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| 282 | flatten : function(arr){ |
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| 283 | var worker = []; |
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| 284 | function rFlatten(a) { |
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| 285 | Ext.each(a, function(v) { |
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| 286 | if(Ext.isArray(v)){ |
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| 287 | rFlatten(v); |
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| 288 | }else{ |
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| 289 | worker.push(v); |
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| 290 | } |
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| 291 | }); |
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| 292 | return worker; |
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| 293 | } |
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| 294 | return rFlatten(arr); |
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| 295 | }, |
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| 296 | |
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| 297 | /** |
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| 298 | * Returns the minimum value in the Array. |
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| 299 | * @param {Array|NodeList} arr The Array from which to select the minimum value. |
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| 300 | * @param {Function} comp (optional) a function to perform the comparision which determines minimization. |
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| 301 | * If omitted the "<" operator will be used. Note: gt = 1; eq = 0; lt = -1 |
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| 302 | * @return {Object} The minimum value in the Array. |
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| 303 | */ |
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| 304 | min : function(arr, comp){ |
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| 305 | var ret = arr[0]; |
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| 306 | comp = comp || function(a,b){ return a < b ? -1 : 1; }; |
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| 307 | Ext.each(arr, function(v) { |
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| 308 | ret = comp(ret, v) == -1 ? ret : v; |
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| 309 | }); |
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| 310 | return ret; |
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| 311 | }, |
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| 312 | |
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| 313 | /** |
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| 314 | * Returns the maximum value in the Array |
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| 315 | * @param {Array|NodeList} arr The Array from which to select the maximum value. |
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| 316 | * @param {Function} comp (optional) a function to perform the comparision which determines maximization. |
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| 317 | * If omitted the ">" operator will be used. Note: gt = 1; eq = 0; lt = -1 |
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| 318 | * @return {Object} The maximum value in the Array. |
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| 319 | */ |
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| 320 | max : function(arr, comp){ |
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| 321 | var ret = arr[0]; |
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| 322 | comp = comp || function(a,b){ return a > b ? 1 : -1; }; |
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| 323 | Ext.each(arr, function(v) { |
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| 324 | ret = comp(ret, v) == 1 ? ret : v; |
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| 325 | }); |
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| 326 | return ret; |
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| 327 | }, |
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| 328 | |
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| 329 | /** |
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| 330 | * Calculates the mean of the Array |
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| 331 | * @param {Array} arr The Array to calculate the mean value of. |
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| 332 | * @return {Number} The mean. |
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| 333 | */ |
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| 334 | mean : function(arr){ |
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| 335 | return arr.length > 0 ? Ext.sum(arr) / arr.length : undefined; |
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| 336 | }, |
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| 337 | |
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| 338 | /** |
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| 339 | * Calculates the sum of the Array |
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| 340 | * @param {Array} arr The Array to calculate the sum value of. |
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| 341 | * @return {Number} The sum. |
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| 342 | */ |
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| 343 | sum : function(arr){ |
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| 344 | var ret = 0; |
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| 345 | Ext.each(arr, function(v) { |
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| 346 | ret += v; |
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| 347 | }); |
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| 348 | return ret; |
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| 349 | }, |
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| 350 | |
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| 351 | /** |
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| 352 | * Partitions the set into two sets: a true set and a false set. |
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| 353 | * Example: |
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| 354 | * Example2: |
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| 355 | * <pre><code> |
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| 356 | // Example 1: |
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| 357 | Ext.partition([true, false, true, true, false]); // [[true, true, true], [false, false]] |
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| 358 | |
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| 359 | // Example 2: |
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| 360 | Ext.partition( |
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| 361 | Ext.query("p"), |
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| 362 | function(val){ |
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| 363 | return val.className == "class1" |
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| 364 | } |
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| 365 | ); |
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| 366 | // true are those paragraph elements with a className of "class1", |
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| 367 | // false set are those that do not have that className. |
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| 368 | * </code></pre> |
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| 369 | * @param {Array|NodeList} arr The array to partition |
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| 370 | * @param {Function} truth (optional) a function to determine truth. If this is omitted the element |
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| 371 | * itself must be able to be evaluated for its truthfulness. |
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| 372 | * @return {Array} [true<Array>,false<Array>] |
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| 373 | */ |
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| 374 | partition : function(arr, truth){ |
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| 375 | var ret = [[],[]]; |
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| 376 | Ext.each(arr, function(v, i, a) { |
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| 377 | ret[ (truth && truth(v, i, a)) || (!truth && v) ? 0 : 1].push(v); |
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| 378 | }); |
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| 379 | return ret; |
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| 380 | }, |
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| 381 | |
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| 382 | /** |
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| 383 | * Invokes a method on each item in an Array. |
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| 384 | * <pre><code> |
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| 385 | // Example: |
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| 386 | Ext.invoke(Ext.query("p"), "getAttribute", "id"); |
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| 387 | // [el1.getAttribute("id"), el2.getAttribute("id"), ..., elN.getAttribute("id")] |
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| 388 | * </code></pre> |
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| 389 | * @param {Array|NodeList} arr The Array of items to invoke the method on. |
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| 390 | * @param {String} methodName The method name to invoke. |
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| 391 | * @param {...*} args Arguments to send into the method invocation. |
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| 392 | * @return {Array} The results of invoking the method on each item in the array. |
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| 393 | */ |
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| 394 | invoke : function(arr, methodName){ |
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| 395 | var ret = [], |
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| 396 | args = Array.prototype.slice.call(arguments, 2); |
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| 397 | Ext.each(arr, function(v,i) { |
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| 398 | if (v && typeof v[methodName] == 'function') { |
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| 399 | ret.push(v[methodName].apply(v, args)); |
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| 400 | } else { |
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| 401 | ret.push(undefined); |
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| 402 | } |
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| 403 | }); |
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| 404 | return ret; |
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| 405 | }, |
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| 406 | |
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| 407 | /** |
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| 408 | * Plucks the value of a property from each item in the Array |
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| 409 | * <pre><code> |
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| 410 | // Example: |
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| 411 | Ext.pluck(Ext.query("p"), "className"); // [el1.className, el2.className, ..., elN.className] |
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| 412 | * </code></pre> |
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| 413 | * @param {Array|NodeList} arr The Array of items to pluck the value from. |
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| 414 | * @param {String} prop The property name to pluck from each element. |
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| 415 | * @return {Array} The value from each item in the Array. |
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| 416 | */ |
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| 417 | pluck : function(arr, prop){ |
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| 418 | var ret = []; |
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| 419 | Ext.each(arr, function(v) { |
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| 420 | ret.push( v[prop] ); |
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| 421 | }); |
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| 422 | return ret; |
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| 423 | }, |
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| 424 | |
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| 425 | /** |
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| 426 | * <p>Zips N sets together.</p> |
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| 427 | * <pre><code> |
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| 428 | // Example 1: |
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| 429 | Ext.zip([1,2,3],[4,5,6]); // [[1,4],[2,5],[3,6]] |
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| 430 | // Example 2: |
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| 431 | Ext.zip( |
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| 432 | [ "+", "-", "+"], |
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| 433 | [ 12, 10, 22], |
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| 434 | [ 43, 15, 96], |
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| 435 | function(a, b, c){ |
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| 436 | return "$" + a + "" + b + "." + c |
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| 437 | } |
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| 438 | ); // ["$+12.43", "$-10.15", "$+22.96"] |
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| 439 | * </code></pre> |
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| 440 | * @param {Arrays|NodeLists} arr This argument may be repeated. Array(s) to contribute values. |
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| 441 | * @param {Function} zipper (optional) The last item in the argument list. This will drive how the items are zipped together. |
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| 442 | * @return {Array} The zipped set. |
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| 443 | */ |
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| 444 | zip : function(){ |
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| 445 | var parts = Ext.partition(arguments, function( val ){ return typeof val != 'function'; }), |
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| 446 | arrs = parts[0], |
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| 447 | fn = parts[1][0], |
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| 448 | len = Ext.max(Ext.pluck(arrs, "length")), |
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| 449 | ret = []; |
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| 450 | |
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| 451 | for (var i = 0; i < len; i++) { |
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| 452 | ret[i] = []; |
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| 453 | if(fn){ |
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| 454 | ret[i] = fn.apply(fn, Ext.pluck(arrs, i)); |
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| 455 | }else{ |
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| 456 | for (var j = 0, aLen = arrs.length; j < aLen; j++){ |
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| 457 | ret[i].push( arrs[j][i] ); |
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| 458 | } |
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| 459 | } |
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| 460 | } |
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| 461 | return ret; |
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| 462 | }, |
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| 463 | |
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| 464 | /** |
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| 465 | * This is shorthand reference to {@link Ext.ComponentMgr#get}. |
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| 466 | * Looks up an existing {@link Ext.Component Component} by {@link Ext.Component#id id} |
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| 467 | * @param {String} id The component {@link Ext.Component#id id} |
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| 468 | * @return Ext.Component The Component, <tt>undefined</tt> if not found, or <tt>null</tt> if a |
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| 469 | * Class was found. |
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| 470 | */ |
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| 471 | getCmp : function(id){ |
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| 472 | return Ext.ComponentMgr.get(id); |
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| 473 | }, |
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| 474 | |
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| 475 | /** |
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| 476 | * By default, Ext intelligently decides whether floating elements should be shimmed. If you are using flash, |
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| 477 | * you may want to set this to true. |
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| 478 | * @type Boolean |
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| 479 | */ |
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| 480 | useShims: E.isIE6 || (E.isMac && E.isGecko2), |
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| 481 | |
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| 482 | // inpired by a similar function in mootools library |
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| 483 | /** |
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| 484 | * Returns the type of object that is passed in. If the object passed in is null or undefined it |
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| 485 | * return false otherwise it returns one of the following values:<div class="mdetail-params"><ul> |
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| 486 | * <li><b>string</b>: If the object passed is a string</li> |
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| 487 | * <li><b>number</b>: If the object passed is a number</li> |
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| 488 | * <li><b>boolean</b>: If the object passed is a boolean value</li> |
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| 489 | * <li><b>date</b>: If the object passed is a Date object</li> |
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| 490 | * <li><b>function</b>: If the object passed is a function reference</li> |
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| 491 | * <li><b>object</b>: If the object passed is an object</li> |
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| 492 | * <li><b>array</b>: If the object passed is an array</li> |
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| 493 | * <li><b>regexp</b>: If the object passed is a regular expression</li> |
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| 494 | * <li><b>element</b>: If the object passed is a DOM Element</li> |
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| 495 | * <li><b>nodelist</b>: If the object passed is a DOM NodeList</li> |
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| 496 | * <li><b>textnode</b>: If the object passed is a DOM text node and contains something other than whitespace</li> |
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| 497 | * <li><b>whitespace</b>: If the object passed is a DOM text node and contains only whitespace</li> |
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| 498 | * </ul></div> |
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| 499 | * @param {Mixed} object |
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| 500 | * @return {String} |
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| 501 | */ |
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| 502 | type : function(o){ |
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| 503 | if(o === undefined || o === null){ |
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| 504 | return false; |
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| 505 | } |
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| 506 | if(o.htmlElement){ |
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| 507 | return 'element'; |
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| 508 | } |
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| 509 | var t = typeof o; |
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| 510 | if(t == 'object' && o.nodeName) { |
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| 511 | switch(o.nodeType) { |
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| 512 | case 1: return 'element'; |
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| 513 | case 3: return (/\S/).test(o.nodeValue) ? 'textnode' : 'whitespace'; |
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| 514 | } |
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| 515 | } |
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| 516 | if(t == 'object' || t == 'function') { |
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| 517 | switch(o.constructor) { |
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| 518 | case Array: return 'array'; |
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| 519 | case RegExp: return 'regexp'; |
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| 520 | case Date: return 'date'; |
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| 521 | } |
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| 522 | if(typeof o.length == 'number' && typeof o.item == 'function') { |
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| 523 | return 'nodelist'; |
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| 524 | } |
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| 525 | } |
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| 526 | return t; |
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| 527 | }, |
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| 528 | |
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| 529 | intercept : function(o, name, fn, scope){ |
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| 530 | o[name] = o[name].createInterceptor(fn, scope); |
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| 531 | }, |
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| 532 | |
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| 533 | // internal |
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| 534 | callback : function(cb, scope, args, delay){ |
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| 535 | if(typeof cb == 'function'){ |
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| 536 | if(delay){ |
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| 537 | cb.defer(delay, scope, args || []); |
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| 538 | }else{ |
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| 539 | cb.apply(scope, args || []); |
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| 540 | } |
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| 541 | } |
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| 542 | } |
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| 543 | }; |
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| 544 | }()); |
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| 545 | |
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| 546 | /** |
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| 547 | * @class Function |
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| 548 | * These functions are available on every Function object (any JavaScript function). |
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| 549 | */ |
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| 550 | Ext.apply(Function.prototype, { |
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| 551 | /** |
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| 552 | * Create a combined function call sequence of the original function + the passed function. |
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| 553 | * The resulting function returns the results of the original function. |
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| 554 | * The passed fcn is called with the parameters of the original function. Example usage: |
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| 555 | * <pre><code> |
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| 556 | var sayHi = function(name){ |
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| 557 | alert('Hi, ' + name); |
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| 558 | } |
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| 559 | |
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| 560 | sayHi('Fred'); // alerts "Hi, Fred" |
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| 561 | |
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| 562 | var sayGoodbye = sayHi.createSequence(function(name){ |
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| 563 | alert('Bye, ' + name); |
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| 564 | }); |
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| 565 | |
---|
| 566 | sayGoodbye('Fred'); // both alerts show |
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| 567 | </code></pre> |
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| 568 | * @param {Function} fcn The function to sequence |
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| 569 | * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the passed function is executed. |
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| 570 | * <b>If omitted, defaults to the scope in which the original function is called or the browser window.</b> |
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| 571 | * @return {Function} The new function |
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| 572 | */ |
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| 573 | createSequence : function(fcn, scope){ |
---|
| 574 | var method = this; |
---|
| 575 | return (typeof fcn != 'function') ? |
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| 576 | this : |
---|
| 577 | function(){ |
---|
| 578 | var retval = method.apply(this || window, arguments); |
---|
| 579 | fcn.apply(scope || this || window, arguments); |
---|
| 580 | return retval; |
---|
| 581 | }; |
---|
| 582 | } |
---|
| 583 | }); |
---|
| 584 | |
---|
| 585 | |
---|
| 586 | /** |
---|
| 587 | * @class String |
---|
| 588 | * These functions are available as static methods on the JavaScript String object. |
---|
| 589 | */ |
---|
| 590 | Ext.applyIf(String, { |
---|
| 591 | |
---|
| 592 | /** |
---|
| 593 | * Escapes the passed string for ' and \ |
---|
| 594 | * @param {String} string The string to escape |
---|
| 595 | * @return {String} The escaped string |
---|
| 596 | * @static |
---|
| 597 | */ |
---|
| 598 | escape : function(string) { |
---|
| 599 | return string.replace(/('|\\)/g, "\\$1"); |
---|
| 600 | }, |
---|
| 601 | |
---|
| 602 | /** |
---|
| 603 | * Pads the left side of a string with a specified character. This is especially useful |
---|
| 604 | * for normalizing number and date strings. Example usage: |
---|
| 605 | * <pre><code> |
---|
| 606 | var s = String.leftPad('123', 5, '0'); |
---|
| 607 | // s now contains the string: '00123' |
---|
| 608 | * </code></pre> |
---|
| 609 | * @param {String} string The original string |
---|
| 610 | * @param {Number} size The total length of the output string |
---|
| 611 | * @param {String} char (optional) The character with which to pad the original string (defaults to empty string " ") |
---|
| 612 | * @return {String} The padded string |
---|
| 613 | * @static |
---|
| 614 | */ |
---|
| 615 | leftPad : function (val, size, ch) { |
---|
| 616 | var result = String(val); |
---|
| 617 | if(!ch) { |
---|
| 618 | ch = " "; |
---|
| 619 | } |
---|
| 620 | while (result.length < size) { |
---|
| 621 | result = ch + result; |
---|
| 622 | } |
---|
| 623 | return result; |
---|
| 624 | } |
---|
| 625 | }); |
---|
| 626 | |
---|
| 627 | /** |
---|
| 628 | * Utility function that allows you to easily switch a string between two alternating values. The passed value |
---|
| 629 | * is compared to the current string, and if they are equal, the other value that was passed in is returned. If |
---|
| 630 | * they are already different, the first value passed in is returned. Note that this method returns the new value |
---|
| 631 | * but does not change the current string. |
---|
| 632 | * <pre><code> |
---|
| 633 | // alternate sort directions |
---|
| 634 | sort = sort.toggle('ASC', 'DESC'); |
---|
| 635 | |
---|
| 636 | // instead of conditional logic: |
---|
| 637 | sort = (sort == 'ASC' ? 'DESC' : 'ASC'); |
---|
| 638 | </code></pre> |
---|
| 639 | * @param {String} value The value to compare to the current string |
---|
| 640 | * @param {String} other The new value to use if the string already equals the first value passed in |
---|
| 641 | * @return {String} The new value |
---|
| 642 | */ |
---|
| 643 | String.prototype.toggle = function(value, other){ |
---|
| 644 | return this == value ? other : value; |
---|
| 645 | }; |
---|
| 646 | |
---|
| 647 | /** |
---|
| 648 | * Trims whitespace from either end of a string, leaving spaces within the string intact. Example: |
---|
| 649 | * <pre><code> |
---|
| 650 | var s = ' foo bar '; |
---|
| 651 | alert('-' + s + '-'); //alerts "- foo bar -" |
---|
| 652 | alert('-' + s.trim() + '-'); //alerts "-foo bar-" |
---|
| 653 | </code></pre> |
---|
| 654 | * @return {String} The trimmed string |
---|
| 655 | */ |
---|
| 656 | String.prototype.trim = function(){ |
---|
| 657 | var re = /^\s+|\s+$/g; |
---|
| 658 | return function(){ return this.replace(re, ""); }; |
---|
| 659 | }(); |
---|
| 660 | |
---|
| 661 | // here to prevent dependency on Date.js |
---|
| 662 | /** |
---|
| 663 | Returns the number of milliseconds between this date and date |
---|
| 664 | @param {Date} date (optional) Defaults to now |
---|
| 665 | @return {Number} The diff in milliseconds |
---|
| 666 | @member Date getElapsed |
---|
| 667 | */ |
---|
| 668 | Date.prototype.getElapsed = function(date) { |
---|
| 669 | return Math.abs((date || new Date()).getTime()-this.getTime()); |
---|
| 670 | }; |
---|
| 671 | |
---|
| 672 | |
---|
| 673 | /** |
---|
| 674 | * @class Number |
---|
| 675 | */ |
---|
| 676 | Ext.applyIf(Number.prototype, { |
---|
| 677 | /** |
---|
| 678 | * Checks whether or not the current number is within a desired range. If the number is already within the |
---|
| 679 | * range it is returned, otherwise the min or max value is returned depending on which side of the range is |
---|
| 680 | * exceeded. Note that this method returns the constrained value but does not change the current number. |
---|
| 681 | * @param {Number} min The minimum number in the range |
---|
| 682 | * @param {Number} max The maximum number in the range |
---|
| 683 | * @return {Number} The constrained value if outside the range, otherwise the current value |
---|
| 684 | */ |
---|
| 685 | constrain : function(min, max){ |
---|
| 686 | return Math.min(Math.max(this, min), max); |
---|
| 687 | } |
---|
| 688 | }); |
---|