1 | /*! |
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2 | * Ext JS Library 3.0.0 |
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3 | * Copyright(c) 2006-2009 Ext JS, LLC |
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4 | * licensing@extjs.com |
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5 | * http://www.extjs.com/license |
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6 | */ |
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7 | /** |
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8 | * @class Ext.EventManager |
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9 | */ |
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10 | Ext.apply(Ext.EventManager, function(){ |
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11 | var resizeEvent, |
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12 | resizeTask, |
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13 | textEvent, |
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14 | textSize, |
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15 | D = Ext.lib.Dom, |
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16 | E = Ext.lib.Event, |
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17 | propRe = /^(?:scope|delay|buffer|single|stopEvent|preventDefault|stopPropagation|normalized|args|delegate)$/, |
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18 | curWidth = 0, |
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19 | curHeight = 0, |
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20 | // note 1: IE fires ONLY the keydown event on specialkey autorepeat |
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21 | // note 2: Safari < 3.1, Gecko (Mac/Linux) & Opera fire only the keypress event on specialkey autorepeat |
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22 | // (research done by @Jan Wolter at http://unixpapa.com/js/key.html) |
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23 | useKeydown = Ext.isSafari ? |
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24 | Ext.num(navigator.userAgent.toLowerCase().match(/version\/(\d+\.\d)/)[1] || 2) >= 3.1 : |
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25 | !((Ext.isGecko && !Ext.isWindows) || Ext.isOpera); |
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26 | |
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27 | return { |
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28 | // private |
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29 | doResizeEvent: function(){ |
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30 | var h = D.getViewHeight(), |
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31 | w = D.getViewWidth(); |
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32 | |
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33 | //whacky problem in IE where the resize event will fire even though the w/h are the same. |
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34 | if(curHeight != h || curWidth != w){ |
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35 | resizeEvent.fire(curWidth = w, curHeight = h); |
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36 | } |
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37 | }, |
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38 | |
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39 | /** |
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40 | * Fires when the window is resized and provides resize event buffering (50 milliseconds), passes new viewport width and height to handlers. |
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41 | * @param {Function} fn The method the event invokes |
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42 | * @param {Object} scope An object that becomes the scope of the handler |
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43 | * @param {boolean} options |
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44 | */ |
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45 | onWindowResize : function(fn, scope, options){ |
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46 | if(!resizeEvent){ |
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47 | resizeEvent = new Ext.util.Event(); |
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48 | resizeTask = new Ext.util.DelayedTask(this.doResizeEvent); |
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49 | E.on(window, "resize", this.fireWindowResize, this); |
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50 | } |
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51 | resizeEvent.addListener(fn, scope, options); |
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52 | }, |
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53 | |
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54 | // exposed only to allow manual firing |
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55 | fireWindowResize : function(){ |
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56 | if(resizeEvent){ |
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57 | if((Ext.isIE||Ext.isAir) && resizeTask){ |
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58 | resizeTask.delay(50); |
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59 | }else{ |
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60 | resizeEvent.fire(D.getViewWidth(), D.getViewHeight()); |
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61 | } |
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62 | } |
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63 | }, |
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64 | |
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65 | /** |
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66 | * Fires when the user changes the active text size. Handler gets called with 2 params, the old size and the new size. |
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67 | * @param {Function} fn The method the event invokes |
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68 | * @param {Object} scope An object that becomes the scope of the handler |
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69 | * @param {boolean} options |
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70 | */ |
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71 | onTextResize : function(fn, scope, options){ |
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72 | if(!textEvent){ |
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73 | textEvent = new Ext.util.Event(); |
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74 | var textEl = new Ext.Element(document.createElement('div')); |
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75 | textEl.dom.className = 'x-text-resize'; |
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76 | textEl.dom.innerHTML = 'X'; |
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77 | textEl.appendTo(document.body); |
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78 | textSize = textEl.dom.offsetHeight; |
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79 | setInterval(function(){ |
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80 | if(textEl.dom.offsetHeight != textSize){ |
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81 | textEvent.fire(textSize, textSize = textEl.dom.offsetHeight); |
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82 | } |
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83 | }, this.textResizeInterval); |
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84 | } |
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85 | textEvent.addListener(fn, scope, options); |
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86 | }, |
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87 | |
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88 | /** |
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89 | * Removes the passed window resize listener. |
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90 | * @param {Function} fn The method the event invokes |
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91 | * @param {Object} scope The scope of handler |
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92 | */ |
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93 | removeResizeListener : function(fn, scope){ |
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94 | if(resizeEvent){ |
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95 | resizeEvent.removeListener(fn, scope); |
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96 | } |
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97 | }, |
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98 | |
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99 | // private |
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100 | fireResize : function(){ |
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101 | if(resizeEvent){ |
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102 | resizeEvent.fire(D.getViewWidth(), D.getViewHeight()); |
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103 | } |
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104 | }, |
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105 | |
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106 | /** |
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107 | * The frequency, in milliseconds, to check for text resize events (defaults to 50) |
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108 | */ |
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109 | textResizeInterval : 50, |
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110 | |
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111 | /** |
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112 | * Url used for onDocumentReady with using SSL (defaults to Ext.SSL_SECURE_URL) |
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113 | */ |
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114 | ieDeferSrc : false, |
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115 | |
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116 | // protected for use inside the framework |
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117 | // detects whether we should use keydown or keypress based on the browser. |
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118 | useKeydown: useKeydown |
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119 | }; |
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120 | }()); |
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121 | |
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122 | Ext.EventManager.on = Ext.EventManager.addListener; |
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123 | |
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124 | |
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125 | Ext.apply(Ext.EventObjectImpl.prototype, { |
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126 | /** Key constant @type Number */ |
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127 | BACKSPACE: 8, |
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128 | /** Key constant @type Number */ |
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129 | TAB: 9, |
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130 | /** Key constant @type Number */ |
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131 | NUM_CENTER: 12, |
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132 | /** Key constant @type Number */ |
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133 | ENTER: 13, |
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134 | /** Key constant @type Number */ |
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135 | RETURN: 13, |
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136 | /** Key constant @type Number */ |
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137 | SHIFT: 16, |
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138 | /** Key constant @type Number */ |
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139 | CTRL: 17, |
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140 | CONTROL : 17, // legacy |
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141 | /** Key constant @type Number */ |
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142 | ALT: 18, |
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143 | /** Key constant @type Number */ |
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144 | PAUSE: 19, |
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145 | /** Key constant @type Number */ |
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146 | CAPS_LOCK: 20, |
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147 | /** Key constant @type Number */ |
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148 | ESC: 27, |
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149 | /** Key constant @type Number */ |
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150 | SPACE: 32, |
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151 | /** Key constant @type Number */ |
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152 | PAGE_UP: 33, |
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153 | PAGEUP : 33, // legacy |
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154 | /** Key constant @type Number */ |
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155 | PAGE_DOWN: 34, |
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156 | PAGEDOWN : 34, // legacy |
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157 | /** Key constant @type Number */ |
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158 | END: 35, |
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159 | /** Key constant @type Number */ |
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160 | HOME: 36, |
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161 | /** Key constant @type Number */ |
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162 | LEFT: 37, |
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163 | /** Key constant @type Number */ |
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164 | UP: 38, |
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165 | /** Key constant @type Number */ |
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166 | RIGHT: 39, |
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167 | /** Key constant @type Number */ |
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168 | DOWN: 40, |
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169 | /** Key constant @type Number */ |
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170 | PRINT_SCREEN: 44, |
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171 | /** Key constant @type Number */ |
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172 | INSERT: 45, |
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173 | /** Key constant @type Number */ |
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174 | DELETE: 46, |
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175 | /** Key constant @type Number */ |
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176 | ZERO: 48, |
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177 | /** Key constant @type Number */ |
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178 | ONE: 49, |
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179 | /** Key constant @type Number */ |
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180 | TWO: 50, |
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181 | /** Key constant @type Number */ |
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182 | THREE: 51, |
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183 | /** Key constant @type Number */ |
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184 | FOUR: 52, |
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185 | /** Key constant @type Number */ |
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186 | FIVE: 53, |
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187 | /** Key constant @type Number */ |
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188 | SIX: 54, |
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189 | /** Key constant @type Number */ |
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190 | SEVEN: 55, |
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191 | /** Key constant @type Number */ |
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192 | EIGHT: 56, |
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193 | /** Key constant @type Number */ |
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194 | NINE: 57, |
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195 | /** Key constant @type Number */ |
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196 | A: 65, |
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197 | /** Key constant @type Number */ |
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198 | B: 66, |
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199 | /** Key constant @type Number */ |
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200 | C: 67, |
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201 | /** Key constant @type Number */ |
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202 | D: 68, |
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203 | /** Key constant @type Number */ |
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204 | E: 69, |
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205 | /** Key constant @type Number */ |
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206 | F: 70, |
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207 | /** Key constant @type Number */ |
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208 | G: 71, |
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209 | /** Key constant @type Number */ |
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210 | H: 72, |
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211 | /** Key constant @type Number */ |
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212 | I: 73, |
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213 | /** Key constant @type Number */ |
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214 | J: 74, |
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215 | /** Key constant @type Number */ |
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216 | K: 75, |
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217 | /** Key constant @type Number */ |
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218 | L: 76, |
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219 | /** Key constant @type Number */ |
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220 | M: 77, |
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221 | /** Key constant @type Number */ |
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222 | N: 78, |
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223 | /** Key constant @type Number */ |
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224 | O: 79, |
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225 | /** Key constant @type Number */ |
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226 | P: 80, |
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227 | /** Key constant @type Number */ |
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228 | Q: 81, |
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229 | /** Key constant @type Number */ |
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230 | R: 82, |
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231 | /** Key constant @type Number */ |
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232 | S: 83, |
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233 | /** Key constant @type Number */ |
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234 | T: 84, |
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235 | /** Key constant @type Number */ |
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236 | U: 85, |
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237 | /** Key constant @type Number */ |
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238 | V: 86, |
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239 | /** Key constant @type Number */ |
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240 | W: 87, |
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241 | /** Key constant @type Number */ |
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242 | X: 88, |
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243 | /** Key constant @type Number */ |
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244 | Y: 89, |
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245 | /** Key constant @type Number */ |
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246 | Z: 90, |
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247 | /** Key constant @type Number */ |
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248 | CONTEXT_MENU: 93, |
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249 | /** Key constant @type Number */ |
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250 | NUM_ZERO: 96, |
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251 | /** Key constant @type Number */ |
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252 | NUM_ONE: 97, |
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253 | /** Key constant @type Number */ |
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254 | NUM_TWO: 98, |
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255 | /** Key constant @type Number */ |
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256 | NUM_THREE: 99, |
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257 | /** Key constant @type Number */ |
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258 | NUM_FOUR: 100, |
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259 | /** Key constant @type Number */ |
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260 | NUM_FIVE: 101, |
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261 | /** Key constant @type Number */ |
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262 | NUM_SIX: 102, |
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263 | /** Key constant @type Number */ |
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264 | NUM_SEVEN: 103, |
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265 | /** Key constant @type Number */ |
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266 | NUM_EIGHT: 104, |
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267 | /** Key constant @type Number */ |
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268 | NUM_NINE: 105, |
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269 | /** Key constant @type Number */ |
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270 | NUM_MULTIPLY: 106, |
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271 | /** Key constant @type Number */ |
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272 | NUM_PLUS: 107, |
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273 | /** Key constant @type Number */ |
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274 | NUM_MINUS: 109, |
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275 | /** Key constant @type Number */ |
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276 | NUM_PERIOD: 110, |
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277 | /** Key constant @type Number */ |
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278 | NUM_DIVISION: 111, |
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279 | /** Key constant @type Number */ |
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280 | F1: 112, |
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281 | /** Key constant @type Number */ |
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282 | F2: 113, |
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283 | /** Key constant @type Number */ |
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284 | F3: 114, |
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285 | /** Key constant @type Number */ |
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286 | F4: 115, |
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287 | /** Key constant @type Number */ |
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288 | F5: 116, |
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289 | /** Key constant @type Number */ |
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290 | F6: 117, |
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291 | /** Key constant @type Number */ |
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292 | F7: 118, |
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293 | /** Key constant @type Number */ |
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294 | F8: 119, |
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295 | /** Key constant @type Number */ |
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296 | F9: 120, |
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297 | /** Key constant @type Number */ |
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298 | F10: 121, |
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299 | /** Key constant @type Number */ |
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300 | F11: 122, |
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301 | /** Key constant @type Number */ |
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302 | F12: 123, |
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303 | |
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304 | /** @private */ |
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305 | isNavKeyPress : function(){ |
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306 | var me = this, |
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307 | k = this.normalizeKey(me.keyCode); |
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308 | return (k >= 33 && k <= 40) || // Page Up/Down, End, Home, Left, Up, Right, Down |
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309 | k == me.RETURN || |
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310 | k == me.TAB || |
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311 | k == me.ESC; |
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312 | }, |
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313 | |
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314 | isSpecialKey : function(){ |
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315 | var k = this.normalizeKey(this.keyCode); |
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316 | return (this.type == 'keypress' && this.ctrlKey) || |
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317 | this.isNavKeyPress() || |
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318 | (k == this.BACKSPACE) || // Backspace |
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319 | (k >= 16 && k <= 20) || // Shift, Ctrl, Alt, Pause, Caps Lock |
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320 | (k >= 44 && k <= 45); // Print Screen, Insert |
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321 | }, |
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322 | |
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323 | getPoint : function(){ |
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324 | return new Ext.lib.Point(this.xy[0], this.xy[1]); |
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325 | }, |
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326 | |
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327 | /** |
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328 | * Returns true if the control, meta, shift or alt key was pressed during this event. |
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329 | * @return {Boolean} |
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330 | */ |
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331 | hasModifier : function(){ |
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332 | return ((this.ctrlKey || this.altKey) || this.shiftKey); |
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333 | } |
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334 | }); |
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