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.CompositeElementLite |
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9 | * <p>This class encapsulates a <i>collection</i> of DOM elements, providing methods to filter |
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10 | * members, or to perform collective actions upon the whole set.</p> |
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11 | * <p>Although they are not listed, this class supports all of the methods of {@link Ext.Element} and |
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12 | * {@link Ext.Fx}. The methods from these classes will be performed on all the elements in this collection.</p> |
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13 | * Example:<pre><code> |
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14 | var els = Ext.select("#some-el div.some-class"); |
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15 | // or select directly from an existing element |
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16 | var el = Ext.get('some-el'); |
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17 | el.select('div.some-class'); |
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18 | |
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19 | els.setWidth(100); // all elements become 100 width |
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20 | els.hide(true); // all elements fade out and hide |
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21 | // or |
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22 | els.setWidth(100).hide(true); |
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23 | </code> |
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24 | */ |
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25 | Ext.CompositeElementLite = function(els, root){ |
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26 | /** |
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27 | * <p>The Array of DOM elements which this CompositeElement encapsulates. Read-only.</p> |
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28 | * <p>This will not <i>usually</i> be accessed in developers' code, but developers wishing |
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29 | * to augment the capabilities of the CompositeElementLite class may use it when adding |
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30 | * methods to the class.</p> |
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31 | * <p>For example to add the <code>nextAll</code> method to the class to <b>add</b> all |
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32 | * following siblings of selected elements, the code would be</p><code><pre> |
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33 | Ext.override(Ext.CompositeElementLite, { |
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34 | nextAll: function() { |
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35 | var els = this.elements, i, l = els.length, n, r = [], ri = -1; |
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36 | |
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37 | // Loop through all elements in this Composite, accumulating |
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38 | // an Array of all siblings. |
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39 | for (i = 0; i < l; i++) { |
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40 | for (n = els[i].nextSibling; n; n = n.nextSibling) { |
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41 | r[++ri] = n; |
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42 | } |
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43 | } |
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44 | |
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45 | // Add all found siblings to this Composite |
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46 | return this.add(r); |
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47 | } |
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48 | });</pre></code> |
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49 | * @type Array |
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50 | * @property elements |
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51 | */ |
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52 | this.elements = []; |
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53 | this.add(els, root); |
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54 | this.el = new Ext.Element.Flyweight(); |
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55 | }; |
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56 | |
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57 | Ext.CompositeElementLite.prototype = { |
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58 | isComposite: true, |
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59 | |
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60 | // private |
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61 | getElement : function(el){ |
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62 | // Set the shared flyweight dom property to the current element |
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63 | var e = this.el; |
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64 | e.dom = el; |
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65 | e.id = el.id; |
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66 | return e; |
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67 | }, |
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68 | |
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69 | // private |
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70 | transformElement : function(el){ |
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71 | return Ext.getDom(el); |
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72 | }, |
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73 | |
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74 | /** |
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75 | * Returns the number of elements in this Composite. |
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76 | * @return Number |
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77 | */ |
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78 | getCount : function(){ |
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79 | return this.elements.length; |
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80 | }, |
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81 | /** |
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82 | * Adds elements to this Composite object. |
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83 | * @param {Mixed} els Either an Array of DOM elements to add, or another Composite object who's elements should be added. |
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84 | * @return {CompositeElement} This Composite object. |
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85 | */ |
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86 | add : function(els, root){ |
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87 | var me = this, |
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88 | elements = me.elements; |
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89 | if(!els){ |
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90 | return this; |
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91 | } |
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92 | if(typeof els == "string"){ |
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93 | els = Ext.Element.selectorFunction(els, root); |
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94 | }else if(els.isComposite){ |
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95 | els = els.elements; |
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96 | }else if(!Ext.isIterable(els)){ |
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97 | els = [els]; |
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98 | } |
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99 | |
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100 | for(var i = 0, len = els.length; i < len; ++i){ |
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101 | elements.push(me.transformElement(els[i])); |
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102 | } |
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103 | return me; |
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104 | }, |
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105 | |
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106 | invoke : function(fn, args){ |
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107 | var me = this, |
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108 | els = me.elements, |
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109 | len = els.length, |
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110 | e, |
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111 | i; |
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112 | |
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113 | for(i = 0; i < len; i++) { |
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114 | e = els[i]; |
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115 | if(e){ |
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116 | Ext.Element.prototype[fn].apply(me.getElement(e), args); |
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117 | } |
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118 | } |
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119 | return me; |
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120 | }, |
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121 | /** |
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122 | * Returns a flyweight Element of the dom element object at the specified index |
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123 | * @param {Number} index |
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124 | * @return {Ext.Element} |
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125 | */ |
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126 | item : function(index){ |
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127 | var me = this, |
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128 | el = me.elements[index], |
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129 | out = null; |
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130 | |
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131 | if(el){ |
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132 | out = me.getElement(el); |
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133 | } |
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134 | return out; |
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135 | }, |
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136 | |
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137 | // fixes scope with flyweight |
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138 | addListener : function(eventName, handler, scope, opt){ |
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139 | var els = this.elements, |
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140 | len = els.length, |
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141 | i, e; |
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142 | |
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143 | for(i = 0; i<len; i++) { |
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144 | e = els[i]; |
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145 | if(e) { |
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146 | Ext.EventManager.on(e, eventName, handler, scope || e, opt); |
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147 | } |
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148 | } |
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149 | return this; |
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150 | }, |
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151 | /** |
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152 | * <p>Calls the passed function for each element in this composite.</p> |
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153 | * @param {Function} fn The function to call. The function is passed the following parameters:<ul> |
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154 | * <li><b>el</b> : Element<div class="sub-desc">The current Element in the iteration. |
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155 | * <b>This is the flyweight (shared) Ext.Element instance, so if you require a |
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156 | * a reference to the dom node, use el.dom.</b></div></li> |
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157 | * <li><b>c</b> : Composite<div class="sub-desc">This Composite object.</div></li> |
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158 | * <li><b>idx</b> : Number<div class="sub-desc">The zero-based index in the iteration.</div></li> |
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159 | * </ul> |
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160 | * @param {Object} scope (optional) The scope (<i>this</i> reference) in which the function is executed. (defaults to the Element) |
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161 | * @return {CompositeElement} this |
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162 | */ |
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163 | each : function(fn, scope){ |
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164 | var me = this, |
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165 | els = me.elements, |
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166 | len = els.length, |
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167 | i, e; |
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168 | |
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169 | for(i = 0; i<len; i++) { |
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170 | e = els[i]; |
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171 | if(e){ |
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172 | e = this.getElement(e); |
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173 | if(fn.call(scope || e, e, me, i) === false){ |
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174 | break; |
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175 | } |
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176 | } |
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177 | } |
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178 | return me; |
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179 | }, |
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180 | |
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181 | /** |
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182 | * Clears this Composite and adds the elements passed. |
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183 | * @param {Mixed} els Either an array of DOM elements, or another Composite from which to fill this Composite. |
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184 | * @return {CompositeElement} this |
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185 | */ |
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186 | fill : function(els){ |
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187 | var me = this; |
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188 | me.elements = []; |
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189 | me.add(els); |
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190 | return me; |
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191 | }, |
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192 | |
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193 | /** |
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194 | * Filters this composite to only elements that match the passed selector. |
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195 | * @param {String/Function} selector A string CSS selector or a comparison function. |
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196 | * The comparison function will be called with the following arguments:<ul> |
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197 | * <li><code>el</code> : Ext.Element<div class="sub-desc">The current DOM element.</div></li> |
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198 | * <li><code>index</code> : Number<div class="sub-desc">The current index within the collection.</div></li> |
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199 | * </ul> |
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200 | * @return {CompositeElement} this |
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201 | */ |
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202 | filter : function(selector){ |
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203 | var els = [], |
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204 | me = this, |
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205 | fn = Ext.isFunction(selector) ? selector |
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206 | : function(el){ |
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207 | return el.is(selector); |
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208 | }; |
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209 | |
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210 | me.each(function(el, self, i) { |
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211 | if (fn(el, i) !== false) { |
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212 | els[els.length] = me.transformElement(el); |
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213 | } |
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214 | }); |
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215 | |
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216 | me.elements = els; |
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217 | return me; |
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218 | }, |
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219 | |
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220 | /** |
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221 | * Find the index of the passed element within the composite collection. |
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222 | * @param el {Mixed} The id of an element, or an Ext.Element, or an HtmlElement to find within the composite collection. |
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223 | * @return Number The index of the passed Ext.Element in the composite collection, or -1 if not found. |
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224 | */ |
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225 | indexOf : function(el){ |
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226 | return this.elements.indexOf(this.transformElement(el)); |
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227 | }, |
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228 | |
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229 | /** |
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230 | * Replaces the specified element with the passed element. |
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231 | * @param {Mixed} el The id of an element, the Element itself, the index of the element in this composite |
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232 | * to replace. |
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233 | * @param {Mixed} replacement The id of an element or the Element itself. |
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234 | * @param {Boolean} domReplace (Optional) True to remove and replace the element in the document too. |
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235 | * @return {CompositeElement} this |
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236 | */ |
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237 | replaceElement : function(el, replacement, domReplace){ |
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238 | var index = !isNaN(el) ? el : this.indexOf(el), |
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239 | d; |
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240 | if(index > -1){ |
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241 | replacement = Ext.getDom(replacement); |
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242 | if(domReplace){ |
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243 | d = this.elements[index]; |
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244 | d.parentNode.insertBefore(replacement, d); |
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245 | Ext.removeNode(d); |
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246 | } |
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247 | this.elements.splice(index, 1, replacement); |
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248 | } |
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249 | return this; |
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250 | }, |
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251 | |
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252 | /** |
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253 | * Removes all elements. |
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254 | */ |
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255 | clear : function(){ |
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256 | this.elements = []; |
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257 | } |
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258 | }; |
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259 | |
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260 | Ext.CompositeElementLite.prototype.on = Ext.CompositeElementLite.prototype.addListener; |
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261 | |
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262 | /** |
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263 | * @private |
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264 | * Copies all of the functions from Ext.Element's prototype onto CompositeElementLite's prototype. |
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265 | * This is called twice - once immediately below, and once again after additional Ext.Element |
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266 | * are added in Ext JS |
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267 | */ |
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268 | Ext.CompositeElementLite.importElementMethods = function() { |
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269 | var fnName, |
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270 | ElProto = Ext.Element.prototype, |
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271 | CelProto = Ext.CompositeElementLite.prototype; |
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272 | |
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273 | for (fnName in ElProto) { |
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274 | if (typeof ElProto[fnName] == 'function'){ |
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275 | (function(fnName) { |
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276 | CelProto[fnName] = CelProto[fnName] || function() { |
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277 | return this.invoke(fnName, arguments); |
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278 | }; |
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279 | }).call(CelProto, fnName); |
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280 | |
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281 | } |
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282 | } |
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283 | }; |
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284 | |
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285 | Ext.CompositeElementLite.importElementMethods(); |
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286 | |
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287 | if(Ext.DomQuery){ |
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288 | Ext.Element.selectorFunction = Ext.DomQuery.select; |
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289 | } |
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290 | |
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291 | /** |
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292 | * Selects elements based on the passed CSS selector to enable {@link Ext.Element Element} methods |
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293 | * to be applied to many related elements in one statement through the returned {@link Ext.CompositeElement CompositeElement} or |
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294 | * {@link Ext.CompositeElementLite CompositeElementLite} object. |
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295 | * @param {String/Array} selector The CSS selector or an array of elements |
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296 | * @param {HTMLElement/String} root (optional) The root element of the query or id of the root |
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297 | * @return {CompositeElementLite/CompositeElement} |
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298 | * @member Ext.Element |
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299 | * @method select |
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300 | */ |
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301 | Ext.Element.select = function(selector, root){ |
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302 | var els; |
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303 | if(typeof selector == "string"){ |
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304 | els = Ext.Element.selectorFunction(selector, root); |
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305 | }else if(selector.length !== undefined){ |
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306 | els = selector; |
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307 | }else{ |
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308 | throw "Invalid selector"; |
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309 | } |
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310 | return new Ext.CompositeElementLite(els); |
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311 | }; |
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312 | /** |
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313 | * Selects elements based on the passed CSS selector to enable {@link Ext.Element Element} methods |
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314 | * to be applied to many related elements in one statement through the returned {@link Ext.CompositeElement CompositeElement} or |
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315 | * {@link Ext.CompositeElementLite CompositeElementLite} object. |
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316 | * @param {String/Array} selector The CSS selector or an array of elements |
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317 | * @param {HTMLElement/String} root (optional) The root element of the query or id of the root |
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318 | * @return {CompositeElementLite/CompositeElement} |
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319 | * @member Ext |
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320 | * @method select |
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321 | */ |
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322 | Ext.select = Ext.Element.select; |
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