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.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 | propRe = /^(?:scope|delay|buffer|single|stopEvent|preventDefault|stopPropagation|normalized|args|delegate)$/, |
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17 | unload = Ext.EventManager._unload, |
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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.isWebKit ? |
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24 | Ext.num(navigator.userAgent.match(/AppleWebKit\/(\d+)/)[1]) >= 525 : |
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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 | _unload: function(){ |
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29 | Ext.EventManager.un(window, "resize", this.fireWindowResize, this); |
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30 | unload.call(Ext.EventManager); |
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31 | }, |
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32 | |
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33 | // private |
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34 | doResizeEvent: function(){ |
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35 | var h = D.getViewHeight(), |
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36 | w = D.getViewWidth(); |
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37 | |
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38 | //whacky problem in IE where the resize event will fire even though the w/h are the same. |
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39 | if(curHeight != h || curWidth != w){ |
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40 | resizeEvent.fire(curWidth = w, curHeight = h); |
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41 | } |
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42 | }, |
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43 | |
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44 | /** |
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45 | * Adds a listener to be notified when the browser window is resized and provides resize event buffering (100 milliseconds), |
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46 | * passes new viewport width and height to handlers. |
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47 | * @param {Function} fn The handler function the window resize event invokes. |
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48 | * @param {Object} scope The scope (<code>this</code> reference) in which the handler function executes. Defaults to the browser window. |
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49 | * @param {boolean} options Options object as passed to {@link Ext.Element#addListener} |
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50 | */ |
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51 | onWindowResize : function(fn, scope, options){ |
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52 | if(!resizeEvent){ |
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53 | resizeEvent = new Ext.util.Event(); |
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54 | resizeTask = new Ext.util.DelayedTask(this.doResizeEvent); |
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55 | Ext.EventManager.on(window, "resize", this.fireWindowResize, this); |
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56 | } |
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57 | resizeEvent.addListener(fn, scope, options); |
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58 | }, |
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59 | |
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60 | // exposed only to allow manual firing |
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61 | fireWindowResize : function(){ |
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62 | if(resizeEvent){ |
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63 | resizeTask.delay(100); |
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64 | } |
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65 | }, |
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66 | |
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67 | /** |
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68 | * Adds a listener to be notified 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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69 | * @param {Function} fn The function the event invokes. |
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70 | * @param {Object} scope The scope (<code>this</code> reference) in which the handler function executes. Defaults to the browser window. |
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71 | * @param {boolean} options Options object as passed to {@link Ext.Element#addListener} |
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72 | */ |
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73 | onTextResize : function(fn, scope, options){ |
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74 | if(!textEvent){ |
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75 | textEvent = new Ext.util.Event(); |
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76 | var textEl = new Ext.Element(document.createElement('div')); |
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77 | textEl.dom.className = 'x-text-resize'; |
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78 | textEl.dom.innerHTML = 'X'; |
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79 | textEl.appendTo(document.body); |
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80 | textSize = textEl.dom.offsetHeight; |
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81 | setInterval(function(){ |
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82 | if(textEl.dom.offsetHeight != textSize){ |
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83 | textEvent.fire(textSize, textSize = textEl.dom.offsetHeight); |
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84 | } |
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85 | }, this.textResizeInterval); |
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86 | } |
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87 | textEvent.addListener(fn, scope, options); |
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88 | }, |
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89 | |
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90 | /** |
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91 | * Removes the passed window resize listener. |
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92 | * @param {Function} fn The method the event invokes |
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93 | * @param {Object} scope The scope of handler |
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94 | */ |
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95 | removeResizeListener : function(fn, scope){ |
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96 | if(resizeEvent){ |
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97 | resizeEvent.removeListener(fn, scope); |
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98 | } |
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99 | }, |
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100 | |
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101 | // private |
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102 | fireResize : function(){ |
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103 | if(resizeEvent){ |
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104 | resizeEvent.fire(D.getViewWidth(), D.getViewHeight()); |
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105 | } |
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106 | }, |
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107 | |
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108 | /** |
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109 | * The frequency, in milliseconds, to check for text resize events (defaults to 50) |
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110 | */ |
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111 | textResizeInterval : 50, |
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112 | |
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113 | /** |
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114 | * Url used for onDocumentReady with using SSL (defaults to Ext.SSL_SECURE_URL) |
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115 | */ |
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116 | ieDeferSrc : false, |
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117 | |
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118 | // protected, short accessor for useKeydown |
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119 | getKeyEvent : function(){ |
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120 | return useKeydown ? 'keydown' : 'keypress'; |
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121 | }, |
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122 | |
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123 | // protected for use inside the framework |
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124 | // detects whether we should use keydown or keypress based on the browser. |
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125 | useKeydown: useKeydown |
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126 | }; |
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127 | }()); |
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128 | |
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129 | Ext.EventManager.on = Ext.EventManager.addListener; |
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130 | |
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131 | |
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132 | Ext.apply(Ext.EventObjectImpl.prototype, { |
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133 | /** Key constant @type Number */ |
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134 | BACKSPACE: 8, |
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135 | /** Key constant @type Number */ |
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136 | TAB: 9, |
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137 | /** Key constant @type Number */ |
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138 | NUM_CENTER: 12, |
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139 | /** Key constant @type Number */ |
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140 | ENTER: 13, |
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141 | /** Key constant @type Number */ |
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142 | RETURN: 13, |
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143 | /** Key constant @type Number */ |
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144 | SHIFT: 16, |
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145 | /** Key constant @type Number */ |
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146 | CTRL: 17, |
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147 | CONTROL : 17, // legacy |
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148 | /** Key constant @type Number */ |
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149 | ALT: 18, |
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150 | /** Key constant @type Number */ |
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151 | PAUSE: 19, |
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152 | /** Key constant @type Number */ |
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153 | CAPS_LOCK: 20, |
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154 | /** Key constant @type Number */ |
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155 | ESC: 27, |
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156 | /** Key constant @type Number */ |
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157 | SPACE: 32, |
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158 | /** Key constant @type Number */ |
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159 | PAGE_UP: 33, |
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160 | PAGEUP : 33, // legacy |
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161 | /** Key constant @type Number */ |
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162 | PAGE_DOWN: 34, |
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163 | PAGEDOWN : 34, // legacy |
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164 | /** Key constant @type Number */ |
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165 | END: 35, |
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166 | /** Key constant @type Number */ |
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167 | HOME: 36, |
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168 | /** Key constant @type Number */ |
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169 | LEFT: 37, |
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170 | /** Key constant @type Number */ |
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171 | UP: 38, |
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172 | /** Key constant @type Number */ |
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173 | RIGHT: 39, |
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174 | /** Key constant @type Number */ |
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175 | DOWN: 40, |
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176 | /** Key constant @type Number */ |
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177 | PRINT_SCREEN: 44, |
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178 | /** Key constant @type Number */ |
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179 | INSERT: 45, |
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180 | /** Key constant @type Number */ |
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181 | DELETE: 46, |
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182 | /** Key constant @type Number */ |
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183 | ZERO: 48, |
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184 | /** Key constant @type Number */ |
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185 | ONE: 49, |
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186 | /** Key constant @type Number */ |
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187 | TWO: 50, |
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188 | /** Key constant @type Number */ |
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189 | THREE: 51, |
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190 | /** Key constant @type Number */ |
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191 | FOUR: 52, |
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192 | /** Key constant @type Number */ |
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193 | FIVE: 53, |
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194 | /** Key constant @type Number */ |
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195 | SIX: 54, |
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196 | /** Key constant @type Number */ |
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197 | SEVEN: 55, |
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198 | /** Key constant @type Number */ |
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199 | EIGHT: 56, |
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200 | /** Key constant @type Number */ |
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201 | NINE: 57, |
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202 | /** Key constant @type Number */ |
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203 | A: 65, |
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204 | /** Key constant @type Number */ |
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205 | B: 66, |
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206 | /** Key constant @type Number */ |
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207 | C: 67, |
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208 | /** Key constant @type Number */ |
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209 | D: 68, |
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210 | /** Key constant @type Number */ |
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211 | E: 69, |
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212 | /** Key constant @type Number */ |
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213 | F: 70, |
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214 | /** Key constant @type Number */ |
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215 | G: 71, |
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216 | /** Key constant @type Number */ |
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217 | H: 72, |
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218 | /** Key constant @type Number */ |
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219 | I: 73, |
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220 | /** Key constant @type Number */ |
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221 | J: 74, |
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222 | /** Key constant @type Number */ |
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223 | K: 75, |
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224 | /** Key constant @type Number */ |
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225 | L: 76, |
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226 | /** Key constant @type Number */ |
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227 | M: 77, |
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228 | /** Key constant @type Number */ |
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229 | N: 78, |
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230 | /** Key constant @type Number */ |
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231 | O: 79, |
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232 | /** Key constant @type Number */ |
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233 | P: 80, |
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234 | /** Key constant @type Number */ |
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235 | Q: 81, |
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236 | /** Key constant @type Number */ |
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237 | R: 82, |
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238 | /** Key constant @type Number */ |
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239 | S: 83, |
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240 | /** Key constant @type Number */ |
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241 | T: 84, |
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242 | /** Key constant @type Number */ |
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243 | U: 85, |
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244 | /** Key constant @type Number */ |
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245 | V: 86, |
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246 | /** Key constant @type Number */ |
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247 | W: 87, |
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248 | /** Key constant @type Number */ |
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249 | X: 88, |
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250 | /** Key constant @type Number */ |
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251 | Y: 89, |
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252 | /** Key constant @type Number */ |
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253 | Z: 90, |
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254 | /** Key constant @type Number */ |
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255 | CONTEXT_MENU: 93, |
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256 | /** Key constant @type Number */ |
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257 | NUM_ZERO: 96, |
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258 | /** Key constant @type Number */ |
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259 | NUM_ONE: 97, |
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260 | /** Key constant @type Number */ |
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261 | NUM_TWO: 98, |
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262 | /** Key constant @type Number */ |
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263 | NUM_THREE: 99, |
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264 | /** Key constant @type Number */ |
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265 | NUM_FOUR: 100, |
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266 | /** Key constant @type Number */ |
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267 | NUM_FIVE: 101, |
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268 | /** Key constant @type Number */ |
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269 | NUM_SIX: 102, |
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270 | /** Key constant @type Number */ |
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271 | NUM_SEVEN: 103, |
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272 | /** Key constant @type Number */ |
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273 | NUM_EIGHT: 104, |
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274 | /** Key constant @type Number */ |
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275 | NUM_NINE: 105, |
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276 | /** Key constant @type Number */ |
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277 | NUM_MULTIPLY: 106, |
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278 | /** Key constant @type Number */ |
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279 | NUM_PLUS: 107, |
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280 | /** Key constant @type Number */ |
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281 | NUM_MINUS: 109, |
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282 | /** Key constant @type Number */ |
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283 | NUM_PERIOD: 110, |
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284 | /** Key constant @type Number */ |
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285 | NUM_DIVISION: 111, |
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286 | /** Key constant @type Number */ |
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287 | F1: 112, |
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288 | /** Key constant @type Number */ |
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289 | F2: 113, |
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290 | /** Key constant @type Number */ |
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291 | F3: 114, |
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292 | /** Key constant @type Number */ |
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293 | F4: 115, |
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294 | /** Key constant @type Number */ |
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295 | F5: 116, |
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296 | /** Key constant @type Number */ |
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297 | F6: 117, |
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298 | /** Key constant @type Number */ |
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299 | F7: 118, |
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300 | /** Key constant @type Number */ |
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301 | F8: 119, |
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302 | /** Key constant @type Number */ |
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303 | F9: 120, |
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304 | /** Key constant @type Number */ |
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305 | F10: 121, |
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306 | /** Key constant @type Number */ |
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307 | F11: 122, |
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308 | /** Key constant @type Number */ |
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309 | F12: 123, |
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310 | |
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311 | /** @private */ |
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312 | isNavKeyPress : function(){ |
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313 | var me = this, |
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314 | k = this.normalizeKey(me.keyCode); |
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315 | return (k >= 33 && k <= 40) || // Page Up/Down, End, Home, Left, Up, Right, Down |
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316 | k == me.RETURN || |
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317 | k == me.TAB || |
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318 | k == me.ESC; |
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319 | }, |
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320 | |
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321 | isSpecialKey : function(){ |
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322 | var k = this.normalizeKey(this.keyCode); |
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323 | return (this.type == 'keypress' && this.ctrlKey) || |
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324 | this.isNavKeyPress() || |
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325 | (k == this.BACKSPACE) || // Backspace |
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326 | (k >= 16 && k <= 20) || // Shift, Ctrl, Alt, Pause, Caps Lock |
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327 | (k >= 44 && k <= 46); // Print Screen, Insert, Delete |
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328 | }, |
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329 | |
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330 | getPoint : function(){ |
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331 | return new Ext.lib.Point(this.xy[0], this.xy[1]); |
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332 | }, |
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333 | |
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334 | /** |
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335 | * Returns true if the control, meta, shift or alt key was pressed during this event. |
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336 | * @return {Boolean} |
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337 | */ |
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338 | hasModifier : function(){ |
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339 | return ((this.ctrlKey || this.altKey) || this.shiftKey); |
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340 | } |
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341 | }); |
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