--- /dev/null
+<!DOCTYPE html><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"><meta http-equiv="Content-Language" content="en"><meta http-equiv="X-UA-Compatible" content="IE=edge"><title>browserevent.js</title><link href="../../../../dossier.css" rel="stylesheet" type="text/css"><header><div><form><div><input type="search" placeholder="Search"></div></form></div></header><main><article class="srcfile"><h1>lib/goog/events/browserevent.js</h1><div><table><tr><td><a id="l1"></a><a href="#l1">1</a><td>// Copyright 2005 The Closure Library Authors. All Rights Reserved.<tr><td><a id="l2"></a><a href="#l2">2</a><td>//<tr><td><a id="l3"></a><a href="#l3">3</a><td>// Licensed under the Apache License, Version 2.0 (the "License");<tr><td><a id="l4"></a><a href="#l4">4</a><td>// you may not use this file except in compliance with the License.<tr><td><a id="l5"></a><a href="#l5">5</a><td>// You may obtain a copy of the License at<tr><td><a id="l6"></a><a href="#l6">6</a><td>//<tr><td><a id="l7"></a><a href="#l7">7</a><td>// http://www.apache.org/licenses/LICENSE-2.0<tr><td><a id="l8"></a><a href="#l8">8</a><td>//<tr><td><a id="l9"></a><a href="#l9">9</a><td>// Unless required by applicable law or agreed to in writing, software<tr><td><a id="l10"></a><a href="#l10">10</a><td>// distributed under the License is distributed on an "AS-IS" BASIS,<tr><td><a id="l11"></a><a href="#l11">11</a><td>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<tr><td><a id="l12"></a><a href="#l12">12</a><td>// See the License for the specific language governing permissions and<tr><td><a id="l13"></a><a href="#l13">13</a><td>// limitations under the License.<tr><td><a id="l14"></a><a href="#l14">14</a><td><tr><td><a id="l15"></a><a href="#l15">15</a><td>/**<tr><td><a id="l16"></a><a href="#l16">16</a><td> * @fileoverview A patched, standardized event object for browser events.<tr><td><a id="l17"></a><a href="#l17">17</a><td> *<tr><td><a id="l18"></a><a href="#l18">18</a><td> * <pre><tr><td><a id="l19"></a><a href="#l19">19</a><td> * The patched event object contains the following members:<tr><td><a id="l20"></a><a href="#l20">20</a><td> * - type {string} Event type, e.g. 'click'<tr><td><a id="l21"></a><a href="#l21">21</a><td> * - target {Object} The element that actually triggered the event<tr><td><a id="l22"></a><a href="#l22">22</a><td> * - currentTarget {Object} The element the listener is attached to<tr><td><a id="l23"></a><a href="#l23">23</a><td> * - relatedTarget {Object} For mouseover and mouseout, the previous object<tr><td><a id="l24"></a><a href="#l24">24</a><td> * - offsetX {number} X-coordinate relative to target<tr><td><a id="l25"></a><a href="#l25">25</a><td> * - offsetY {number} Y-coordinate relative to target<tr><td><a id="l26"></a><a href="#l26">26</a><td> * - clientX {number} X-coordinate relative to viewport<tr><td><a id="l27"></a><a href="#l27">27</a><td> * - clientY {number} Y-coordinate relative to viewport<tr><td><a id="l28"></a><a href="#l28">28</a><td> * - screenX {number} X-coordinate relative to the edge of the screen<tr><td><a id="l29"></a><a href="#l29">29</a><td> * - screenY {number} Y-coordinate relative to the edge of the screen<tr><td><a id="l30"></a><a href="#l30">30</a><td> * - button {number} Mouse button. Use isButton() to test.<tr><td><a id="l31"></a><a href="#l31">31</a><td> * - keyCode {number} Key-code<tr><td><a id="l32"></a><a href="#l32">32</a><td> * - ctrlKey {boolean} Was ctrl key depressed<tr><td><a id="l33"></a><a href="#l33">33</a><td> * - altKey {boolean} Was alt key depressed<tr><td><a id="l34"></a><a href="#l34">34</a><td> * - shiftKey {boolean} Was shift key depressed<tr><td><a id="l35"></a><a href="#l35">35</a><td> * - metaKey {boolean} Was meta key depressed<tr><td><a id="l36"></a><a href="#l36">36</a><td> * - defaultPrevented {boolean} Whether the default action has been prevented<tr><td><a id="l37"></a><a href="#l37">37</a><td> * - state {Object} History state object<tr><td><a id="l38"></a><a href="#l38">38</a><td> *<tr><td><a id="l39"></a><a href="#l39">39</a><td> * NOTE: The keyCode member contains the raw browser keyCode. For normalized<tr><td><a id="l40"></a><a href="#l40">40</a><td> * key and character code use {@link goog.events.KeyHandler}.<tr><td><a id="l41"></a><a href="#l41">41</a><td> * </pre><tr><td><a id="l42"></a><a href="#l42">42</a><td> *<tr><td><a id="l43"></a><a href="#l43">43</a><td> * @author arv@google.com (Erik Arvidsson)<tr><td><a id="l44"></a><a href="#l44">44</a><td> */<tr><td><a id="l45"></a><a href="#l45">45</a><td><tr><td><a id="l46"></a><a href="#l46">46</a><td>goog.provide('goog.events.BrowserEvent');<tr><td><a id="l47"></a><a href="#l47">47</a><td>goog.provide('goog.events.BrowserEvent.MouseButton');<tr><td><a id="l48"></a><a href="#l48">48</a><td><tr><td><a id="l49"></a><a href="#l49">49</a><td>goog.require('goog.events.BrowserFeature');<tr><td><a id="l50"></a><a href="#l50">50</a><td>goog.require('goog.events.Event');<tr><td><a id="l51"></a><a href="#l51">51</a><td>goog.require('goog.events.EventType');<tr><td><a id="l52"></a><a href="#l52">52</a><td>goog.require('goog.reflect');<tr><td><a id="l53"></a><a href="#l53">53</a><td>goog.require('goog.userAgent');<tr><td><a id="l54"></a><a href="#l54">54</a><td><tr><td><a id="l55"></a><a href="#l55">55</a><td><tr><td><a id="l56"></a><a href="#l56">56</a><td><tr><td><a id="l57"></a><a href="#l57">57</a><td>/**<tr><td><a id="l58"></a><a href="#l58">58</a><td> * Accepts a browser event object and creates a patched, cross browser event<tr><td><a id="l59"></a><a href="#l59">59</a><td> * object.<tr><td><a id="l60"></a><a href="#l60">60</a><td> * The content of this object will not be initialized if no event object is<tr><td><a id="l61"></a><a href="#l61">61</a><td> * provided. If this is the case, init() needs to be invoked separately.<tr><td><a id="l62"></a><a href="#l62">62</a><td> * @param {Event=} opt_e Browser event object.<tr><td><a id="l63"></a><a href="#l63">63</a><td> * @param {EventTarget=} opt_currentTarget Current target for event.<tr><td><a id="l64"></a><a href="#l64">64</a><td> * @constructor<tr><td><a id="l65"></a><a href="#l65">65</a><td> * @extends {goog.events.Event}<tr><td><a id="l66"></a><a href="#l66">66</a><td> */<tr><td><a id="l67"></a><a href="#l67">67</a><td>goog.events.BrowserEvent = function(opt_e, opt_currentTarget) {<tr><td><a id="l68"></a><a href="#l68">68</a><td> goog.events.BrowserEvent.base(this, 'constructor', opt_e ? opt_e.type : '');<tr><td><a id="l69"></a><a href="#l69">69</a><td><tr><td><a id="l70"></a><a href="#l70">70</a><td> /**<tr><td><a id="l71"></a><a href="#l71">71</a><td> * Target that fired the event.<tr><td><a id="l72"></a><a href="#l72">72</a><td> * @override<tr><td><a id="l73"></a><a href="#l73">73</a><td> * @type {Node}<tr><td><a id="l74"></a><a href="#l74">74</a><td> */<tr><td><a id="l75"></a><a href="#l75">75</a><td> this.target = null;<tr><td><a id="l76"></a><a href="#l76">76</a><td><tr><td><a id="l77"></a><a href="#l77">77</a><td> /**<tr><td><a id="l78"></a><a href="#l78">78</a><td> * Node that had the listener attached.<tr><td><a id="l79"></a><a href="#l79">79</a><td> * @override<tr><td><a id="l80"></a><a href="#l80">80</a><td> * @type {Node|undefined}<tr><td><a id="l81"></a><a href="#l81">81</a><td> */<tr><td><a id="l82"></a><a href="#l82">82</a><td> this.currentTarget = null;<tr><td><a id="l83"></a><a href="#l83">83</a><td><tr><td><a id="l84"></a><a href="#l84">84</a><td> /**<tr><td><a id="l85"></a><a href="#l85">85</a><td> * For mouseover and mouseout events, the related object for the event.<tr><td><a id="l86"></a><a href="#l86">86</a><td> * @type {Node}<tr><td><a id="l87"></a><a href="#l87">87</a><td> */<tr><td><a id="l88"></a><a href="#l88">88</a><td> this.relatedTarget = null;<tr><td><a id="l89"></a><a href="#l89">89</a><td><tr><td><a id="l90"></a><a href="#l90">90</a><td> /**<tr><td><a id="l91"></a><a href="#l91">91</a><td> * X-coordinate relative to target.<tr><td><a id="l92"></a><a href="#l92">92</a><td> * @type {number}<tr><td><a id="l93"></a><a href="#l93">93</a><td> */<tr><td><a id="l94"></a><a href="#l94">94</a><td> this.offsetX = 0;<tr><td><a id="l95"></a><a href="#l95">95</a><td><tr><td><a id="l96"></a><a href="#l96">96</a><td> /**<tr><td><a id="l97"></a><a href="#l97">97</a><td> * Y-coordinate relative to target.<tr><td><a id="l98"></a><a href="#l98">98</a><td> * @type {number}<tr><td><a id="l99"></a><a href="#l99">99</a><td> */<tr><td><a id="l100"></a><a href="#l100">100</a><td> this.offsetY = 0;<tr><td><a id="l101"></a><a href="#l101">101</a><td><tr><td><a id="l102"></a><a href="#l102">102</a><td> /**<tr><td><a id="l103"></a><a href="#l103">103</a><td> * X-coordinate relative to the window.<tr><td><a id="l104"></a><a href="#l104">104</a><td> * @type {number}<tr><td><a id="l105"></a><a href="#l105">105</a><td> */<tr><td><a id="l106"></a><a href="#l106">106</a><td> this.clientX = 0;<tr><td><a id="l107"></a><a href="#l107">107</a><td><tr><td><a id="l108"></a><a href="#l108">108</a><td> /**<tr><td><a id="l109"></a><a href="#l109">109</a><td> * Y-coordinate relative to the window.<tr><td><a id="l110"></a><a href="#l110">110</a><td> * @type {number}<tr><td><a id="l111"></a><a href="#l111">111</a><td> */<tr><td><a id="l112"></a><a href="#l112">112</a><td> this.clientY = 0;<tr><td><a id="l113"></a><a href="#l113">113</a><td><tr><td><a id="l114"></a><a href="#l114">114</a><td> /**<tr><td><a id="l115"></a><a href="#l115">115</a><td> * X-coordinate relative to the monitor.<tr><td><a id="l116"></a><a href="#l116">116</a><td> * @type {number}<tr><td><a id="l117"></a><a href="#l117">117</a><td> */<tr><td><a id="l118"></a><a href="#l118">118</a><td> this.screenX = 0;<tr><td><a id="l119"></a><a href="#l119">119</a><td><tr><td><a id="l120"></a><a href="#l120">120</a><td> /**<tr><td><a id="l121"></a><a href="#l121">121</a><td> * Y-coordinate relative to the monitor.<tr><td><a id="l122"></a><a href="#l122">122</a><td> * @type {number}<tr><td><a id="l123"></a><a href="#l123">123</a><td> */<tr><td><a id="l124"></a><a href="#l124">124</a><td> this.screenY = 0;<tr><td><a id="l125"></a><a href="#l125">125</a><td><tr><td><a id="l126"></a><a href="#l126">126</a><td> /**<tr><td><a id="l127"></a><a href="#l127">127</a><td> * Which mouse button was pressed.<tr><td><a id="l128"></a><a href="#l128">128</a><td> * @type {number}<tr><td><a id="l129"></a><a href="#l129">129</a><td> */<tr><td><a id="l130"></a><a href="#l130">130</a><td> this.button = 0;<tr><td><a id="l131"></a><a href="#l131">131</a><td><tr><td><a id="l132"></a><a href="#l132">132</a><td> /**<tr><td><a id="l133"></a><a href="#l133">133</a><td> * Keycode of key press.<tr><td><a id="l134"></a><a href="#l134">134</a><td> * @type {number}<tr><td><a id="l135"></a><a href="#l135">135</a><td> */<tr><td><a id="l136"></a><a href="#l136">136</a><td> this.keyCode = 0;<tr><td><a id="l137"></a><a href="#l137">137</a><td><tr><td><a id="l138"></a><a href="#l138">138</a><td> /**<tr><td><a id="l139"></a><a href="#l139">139</a><td> * Keycode of key press.<tr><td><a id="l140"></a><a href="#l140">140</a><td> * @type {number}<tr><td><a id="l141"></a><a href="#l141">141</a><td> */<tr><td><a id="l142"></a><a href="#l142">142</a><td> this.charCode = 0;<tr><td><a id="l143"></a><a href="#l143">143</a><td><tr><td><a id="l144"></a><a href="#l144">144</a><td> /**<tr><td><a id="l145"></a><a href="#l145">145</a><td> * Whether control was pressed at time of event.<tr><td><a id="l146"></a><a href="#l146">146</a><td> * @type {boolean}<tr><td><a id="l147"></a><a href="#l147">147</a><td> */<tr><td><a id="l148"></a><a href="#l148">148</a><td> this.ctrlKey = false;<tr><td><a id="l149"></a><a href="#l149">149</a><td><tr><td><a id="l150"></a><a href="#l150">150</a><td> /**<tr><td><a id="l151"></a><a href="#l151">151</a><td> * Whether alt was pressed at time of event.<tr><td><a id="l152"></a><a href="#l152">152</a><td> * @type {boolean}<tr><td><a id="l153"></a><a href="#l153">153</a><td> */<tr><td><a id="l154"></a><a href="#l154">154</a><td> this.altKey = false;<tr><td><a id="l155"></a><a href="#l155">155</a><td><tr><td><a id="l156"></a><a href="#l156">156</a><td> /**<tr><td><a id="l157"></a><a href="#l157">157</a><td> * Whether shift was pressed at time of event.<tr><td><a id="l158"></a><a href="#l158">158</a><td> * @type {boolean}<tr><td><a id="l159"></a><a href="#l159">159</a><td> */<tr><td><a id="l160"></a><a href="#l160">160</a><td> this.shiftKey = false;<tr><td><a id="l161"></a><a href="#l161">161</a><td><tr><td><a id="l162"></a><a href="#l162">162</a><td> /**<tr><td><a id="l163"></a><a href="#l163">163</a><td> * Whether the meta key was pressed at time of event.<tr><td><a id="l164"></a><a href="#l164">164</a><td> * @type {boolean}<tr><td><a id="l165"></a><a href="#l165">165</a><td> */<tr><td><a id="l166"></a><a href="#l166">166</a><td> this.metaKey = false;<tr><td><a id="l167"></a><a href="#l167">167</a><td><tr><td><a id="l168"></a><a href="#l168">168</a><td> /**<tr><td><a id="l169"></a><a href="#l169">169</a><td> * History state object, only set for PopState events where it's a copy of the<tr><td><a id="l170"></a><a href="#l170">170</a><td> * state object provided to pushState or replaceState.<tr><td><a id="l171"></a><a href="#l171">171</a><td> * @type {Object}<tr><td><a id="l172"></a><a href="#l172">172</a><td> */<tr><td><a id="l173"></a><a href="#l173">173</a><td> this.state = null;<tr><td><a id="l174"></a><a href="#l174">174</a><td><tr><td><a id="l175"></a><a href="#l175">175</a><td> /**<tr><td><a id="l176"></a><a href="#l176">176</a><td> * Whether the default platform modifier key was pressed at time of event.<tr><td><a id="l177"></a><a href="#l177">177</a><td> * (This is control for all platforms except Mac, where it's Meta.)<tr><td><a id="l178"></a><a href="#l178">178</a><td> * @type {boolean}<tr><td><a id="l179"></a><a href="#l179">179</a><td> */<tr><td><a id="l180"></a><a href="#l180">180</a><td> this.platformModifierKey = false;<tr><td><a id="l181"></a><a href="#l181">181</a><td><tr><td><a id="l182"></a><a href="#l182">182</a><td> /**<tr><td><a id="l183"></a><a href="#l183">183</a><td> * The browser event object.<tr><td><a id="l184"></a><a href="#l184">184</a><td> * @private {Event}<tr><td><a id="l185"></a><a href="#l185">185</a><td> */<tr><td><a id="l186"></a><a href="#l186">186</a><td> this.event_ = null;<tr><td><a id="l187"></a><a href="#l187">187</a><td><tr><td><a id="l188"></a><a href="#l188">188</a><td> if (opt_e) {<tr><td><a id="l189"></a><a href="#l189">189</a><td> this.init(opt_e, opt_currentTarget);<tr><td><a id="l190"></a><a href="#l190">190</a><td> }<tr><td><a id="l191"></a><a href="#l191">191</a><td>};<tr><td><a id="l192"></a><a href="#l192">192</a><td>goog.inherits(goog.events.BrowserEvent, goog.events.Event);<tr><td><a id="l193"></a><a href="#l193">193</a><td><tr><td><a id="l194"></a><a href="#l194">194</a><td><tr><td><a id="l195"></a><a href="#l195">195</a><td>/**<tr><td><a id="l196"></a><a href="#l196">196</a><td> * Normalized button constants for the mouse.<tr><td><a id="l197"></a><a href="#l197">197</a><td> * @enum {number}<tr><td><a id="l198"></a><a href="#l198">198</a><td> */<tr><td><a id="l199"></a><a href="#l199">199</a><td>goog.events.BrowserEvent.MouseButton = {<tr><td><a id="l200"></a><a href="#l200">200</a><td> LEFT: 0,<tr><td><a id="l201"></a><a href="#l201">201</a><td> MIDDLE: 1,<tr><td><a id="l202"></a><a href="#l202">202</a><td> RIGHT: 2<tr><td><a id="l203"></a><a href="#l203">203</a><td>};<tr><td><a id="l204"></a><a href="#l204">204</a><td><tr><td><a id="l205"></a><a href="#l205">205</a><td><tr><td><a id="l206"></a><a href="#l206">206</a><td>/**<tr><td><a id="l207"></a><a href="#l207">207</a><td> * Static data for mapping mouse buttons.<tr><td><a id="l208"></a><a href="#l208">208</a><td> * @type {!Array<number>}<tr><td><a id="l209"></a><a href="#l209">209</a><td> */<tr><td><a id="l210"></a><a href="#l210">210</a><td>goog.events.BrowserEvent.IEButtonMap = [<tr><td><a id="l211"></a><a href="#l211">211</a><td> 1, // LEFT<tr><td><a id="l212"></a><a href="#l212">212</a><td> 4, // MIDDLE<tr><td><a id="l213"></a><a href="#l213">213</a><td> 2 // RIGHT<tr><td><a id="l214"></a><a href="#l214">214</a><td>];<tr><td><a id="l215"></a><a href="#l215">215</a><td><tr><td><a id="l216"></a><a href="#l216">216</a><td><tr><td><a id="l217"></a><a href="#l217">217</a><td>/**<tr><td><a id="l218"></a><a href="#l218">218</a><td> * Accepts a browser event object and creates a patched, cross browser event<tr><td><a id="l219"></a><a href="#l219">219</a><td> * object.<tr><td><a id="l220"></a><a href="#l220">220</a><td> * @param {Event} e Browser event object.<tr><td><a id="l221"></a><a href="#l221">221</a><td> * @param {EventTarget=} opt_currentTarget Current target for event.<tr><td><a id="l222"></a><a href="#l222">222</a><td> */<tr><td><a id="l223"></a><a href="#l223">223</a><td>goog.events.BrowserEvent.prototype.init = function(e, opt_currentTarget) {<tr><td><a id="l224"></a><a href="#l224">224</a><td> var type = this.type = e.type;<tr><td><a id="l225"></a><a href="#l225">225</a><td><tr><td><a id="l226"></a><a href="#l226">226</a><td> // TODO(nicksantos): Change this.target to type EventTarget.<tr><td><a id="l227"></a><a href="#l227">227</a><td> this.target = /** @type {Node} */ (e.target) || e.srcElement;<tr><td><a id="l228"></a><a href="#l228">228</a><td><tr><td><a id="l229"></a><a href="#l229">229</a><td> // TODO(nicksantos): Change this.currentTarget to type EventTarget.<tr><td><a id="l230"></a><a href="#l230">230</a><td> this.currentTarget = /** @type {Node} */ (opt_currentTarget);<tr><td><a id="l231"></a><a href="#l231">231</a><td><tr><td><a id="l232"></a><a href="#l232">232</a><td> var relatedTarget = /** @type {Node} */ (e.relatedTarget);<tr><td><a id="l233"></a><a href="#l233">233</a><td> if (relatedTarget) {<tr><td><a id="l234"></a><a href="#l234">234</a><td> // There's a bug in FireFox where sometimes, relatedTarget will be a<tr><td><a id="l235"></a><a href="#l235">235</a><td> // chrome element, and accessing any property of it will get a permission<tr><td><a id="l236"></a><a href="#l236">236</a><td> // denied exception. See:<tr><td><a id="l237"></a><a href="#l237">237</a><td> // https://bugzilla.mozilla.org/show_bug.cgi?id=497780<tr><td><a id="l238"></a><a href="#l238">238</a><td> if (goog.userAgent.GECKO) {<tr><td><a id="l239"></a><a href="#l239">239</a><td> if (!goog.reflect.canAccessProperty(relatedTarget, 'nodeName')) {<tr><td><a id="l240"></a><a href="#l240">240</a><td> relatedTarget = null;<tr><td><a id="l241"></a><a href="#l241">241</a><td> }<tr><td><a id="l242"></a><a href="#l242">242</a><td> }<tr><td><a id="l243"></a><a href="#l243">243</a><td> // TODO(arv): Use goog.events.EventType when it has been refactored into its<tr><td><a id="l244"></a><a href="#l244">244</a><td> // own file.<tr><td><a id="l245"></a><a href="#l245">245</a><td> } else if (type == goog.events.EventType.MOUSEOVER) {<tr><td><a id="l246"></a><a href="#l246">246</a><td> relatedTarget = e.fromElement;<tr><td><a id="l247"></a><a href="#l247">247</a><td> } else if (type == goog.events.EventType.MOUSEOUT) {<tr><td><a id="l248"></a><a href="#l248">248</a><td> relatedTarget = e.toElement;<tr><td><a id="l249"></a><a href="#l249">249</a><td> }<tr><td><a id="l250"></a><a href="#l250">250</a><td><tr><td><a id="l251"></a><a href="#l251">251</a><td> this.relatedTarget = relatedTarget;<tr><td><a id="l252"></a><a href="#l252">252</a><td><tr><td><a id="l253"></a><a href="#l253">253</a><td> // Webkit emits a lame warning whenever layerX/layerY is accessed.<tr><td><a id="l254"></a><a href="#l254">254</a><td> // http://code.google.com/p/chromium/issues/detail?id=101733<tr><td><a id="l255"></a><a href="#l255">255</a><td> this.offsetX = (goog.userAgent.WEBKIT || e.offsetX !== undefined) ?<tr><td><a id="l256"></a><a href="#l256">256</a><td> e.offsetX : e.layerX;<tr><td><a id="l257"></a><a href="#l257">257</a><td> this.offsetY = (goog.userAgent.WEBKIT || e.offsetY !== undefined) ?<tr><td><a id="l258"></a><a href="#l258">258</a><td> e.offsetY : e.layerY;<tr><td><a id="l259"></a><a href="#l259">259</a><td><tr><td><a id="l260"></a><a href="#l260">260</a><td> this.clientX = e.clientX !== undefined ? e.clientX : e.pageX;<tr><td><a id="l261"></a><a href="#l261">261</a><td> this.clientY = e.clientY !== undefined ? e.clientY : e.pageY;<tr><td><a id="l262"></a><a href="#l262">262</a><td> this.screenX = e.screenX || 0;<tr><td><a id="l263"></a><a href="#l263">263</a><td> this.screenY = e.screenY || 0;<tr><td><a id="l264"></a><a href="#l264">264</a><td><tr><td><a id="l265"></a><a href="#l265">265</a><td> this.button = e.button;<tr><td><a id="l266"></a><a href="#l266">266</a><td><tr><td><a id="l267"></a><a href="#l267">267</a><td> this.keyCode = e.keyCode || 0;<tr><td><a id="l268"></a><a href="#l268">268</a><td> this.charCode = e.charCode || (type == 'keypress' ? e.keyCode : 0);<tr><td><a id="l269"></a><a href="#l269">269</a><td> this.ctrlKey = e.ctrlKey;<tr><td><a id="l270"></a><a href="#l270">270</a><td> this.altKey = e.altKey;<tr><td><a id="l271"></a><a href="#l271">271</a><td> this.shiftKey = e.shiftKey;<tr><td><a id="l272"></a><a href="#l272">272</a><td> this.metaKey = e.metaKey;<tr><td><a id="l273"></a><a href="#l273">273</a><td> this.platformModifierKey = goog.userAgent.MAC ? e.metaKey : e.ctrlKey;<tr><td><a id="l274"></a><a href="#l274">274</a><td> this.state = e.state;<tr><td><a id="l275"></a><a href="#l275">275</a><td> this.event_ = e;<tr><td><a id="l276"></a><a href="#l276">276</a><td> if (e.defaultPrevented) {<tr><td><a id="l277"></a><a href="#l277">277</a><td> this.preventDefault();<tr><td><a id="l278"></a><a href="#l278">278</a><td> }<tr><td><a id="l279"></a><a href="#l279">279</a><td>};<tr><td><a id="l280"></a><a href="#l280">280</a><td><tr><td><a id="l281"></a><a href="#l281">281</a><td><tr><td><a id="l282"></a><a href="#l282">282</a><td>/**<tr><td><a id="l283"></a><a href="#l283">283</a><td> * Tests to see which button was pressed during the event. This is really only<tr><td><a id="l284"></a><a href="#l284">284</a><td> * useful in IE and Gecko browsers. And in IE, it's only useful for<tr><td><a id="l285"></a><a href="#l285">285</a><td> * mousedown/mouseup events, because click only fires for the left mouse button.<tr><td><a id="l286"></a><a href="#l286">286</a><td> *<tr><td><a id="l287"></a><a href="#l287">287</a><td> * Safari 2 only reports the left button being clicked, and uses the value '1'<tr><td><a id="l288"></a><a href="#l288">288</a><td> * instead of 0. Opera only reports a mousedown event for the middle button, and<tr><td><a id="l289"></a><a href="#l289">289</a><td> * no mouse events for the right button. Opera has default behavior for left and<tr><td><a id="l290"></a><a href="#l290">290</a><td> * middle click that can only be overridden via a configuration setting.<tr><td><a id="l291"></a><a href="#l291">291</a><td> *<tr><td><a id="l292"></a><a href="#l292">292</a><td> * There's a nice table of this mess at http://www.unixpapa.com/js/mouse.html.<tr><td><a id="l293"></a><a href="#l293">293</a><td> *<tr><td><a id="l294"></a><a href="#l294">294</a><td> * @param {goog.events.BrowserEvent.MouseButton} button The button<tr><td><a id="l295"></a><a href="#l295">295</a><td> * to test for.<tr><td><a id="l296"></a><a href="#l296">296</a><td> * @return {boolean} True if button was pressed.<tr><td><a id="l297"></a><a href="#l297">297</a><td> */<tr><td><a id="l298"></a><a href="#l298">298</a><td>goog.events.BrowserEvent.prototype.isButton = function(button) {<tr><td><a id="l299"></a><a href="#l299">299</a><td> if (!goog.events.BrowserFeature.HAS_W3C_BUTTON) {<tr><td><a id="l300"></a><a href="#l300">300</a><td> if (this.type == 'click') {<tr><td><a id="l301"></a><a href="#l301">301</a><td> return button == goog.events.BrowserEvent.MouseButton.LEFT;<tr><td><a id="l302"></a><a href="#l302">302</a><td> } else {<tr><td><a id="l303"></a><a href="#l303">303</a><td> return !!(this.event_.button &<tr><td><a id="l304"></a><a href="#l304">304</a><td> goog.events.BrowserEvent.IEButtonMap[button]);<tr><td><a id="l305"></a><a href="#l305">305</a><td> }<tr><td><a id="l306"></a><a href="#l306">306</a><td> } else {<tr><td><a id="l307"></a><a href="#l307">307</a><td> return this.event_.button == button;<tr><td><a id="l308"></a><a href="#l308">308</a><td> }<tr><td><a id="l309"></a><a href="#l309">309</a><td>};<tr><td><a id="l310"></a><a href="#l310">310</a><td><tr><td><a id="l311"></a><a href="#l311">311</a><td><tr><td><a id="l312"></a><a href="#l312">312</a><td>/**<tr><td><a id="l313"></a><a href="#l313">313</a><td> * Whether this has an "action"-producing mouse button.<tr><td><a id="l314"></a><a href="#l314">314</a><td> *<tr><td><a id="l315"></a><a href="#l315">315</a><td> * By definition, this includes left-click on windows/linux, and left-click<tr><td><a id="l316"></a><a href="#l316">316</a><td> * without the ctrl key on Macs.<tr><td><a id="l317"></a><a href="#l317">317</a><td> *<tr><td><a id="l318"></a><a href="#l318">318</a><td> * @return {boolean} The result.<tr><td><a id="l319"></a><a href="#l319">319</a><td> */<tr><td><a id="l320"></a><a href="#l320">320</a><td>goog.events.BrowserEvent.prototype.isMouseActionButton = function() {<tr><td><a id="l321"></a><a href="#l321">321</a><td> // Webkit does not ctrl+click to be a right-click, so we<tr><td><a id="l322"></a><a href="#l322">322</a><td> // normalize it to behave like Gecko and Opera.<tr><td><a id="l323"></a><a href="#l323">323</a><td> return this.isButton(goog.events.BrowserEvent.MouseButton.LEFT) &&<tr><td><a id="l324"></a><a href="#l324">324</a><td> !(goog.userAgent.WEBKIT && goog.userAgent.MAC && this.ctrlKey);<tr><td><a id="l325"></a><a href="#l325">325</a><td>};<tr><td><a id="l326"></a><a href="#l326">326</a><td><tr><td><a id="l327"></a><a href="#l327">327</a><td><tr><td><a id="l328"></a><a href="#l328">328</a><td>/**<tr><td><a id="l329"></a><a href="#l329">329</a><td> * @override<tr><td><a id="l330"></a><a href="#l330">330</a><td> */<tr><td><a id="l331"></a><a href="#l331">331</a><td>goog.events.BrowserEvent.prototype.stopPropagation = function() {<tr><td><a id="l332"></a><a href="#l332">332</a><td> goog.events.BrowserEvent.superClass_.stopPropagation.call(this);<tr><td><a id="l333"></a><a href="#l333">333</a><td> if (this.event_.stopPropagation) {<tr><td><a id="l334"></a><a href="#l334">334</a><td> this.event_.stopPropagation();<tr><td><a id="l335"></a><a href="#l335">335</a><td> } else {<tr><td><a id="l336"></a><a href="#l336">336</a><td> this.event_.cancelBubble = true;<tr><td><a id="l337"></a><a href="#l337">337</a><td> }<tr><td><a id="l338"></a><a href="#l338">338</a><td>};<tr><td><a id="l339"></a><a href="#l339">339</a><td><tr><td><a id="l340"></a><a href="#l340">340</a><td><tr><td><a id="l341"></a><a href="#l341">341</a><td>/**<tr><td><a id="l342"></a><a href="#l342">342</a><td> * @override<tr><td><a id="l343"></a><a href="#l343">343</a><td> */<tr><td><a id="l344"></a><a href="#l344">344</a><td>goog.events.BrowserEvent.prototype.preventDefault = function() {<tr><td><a id="l345"></a><a href="#l345">345</a><td> goog.events.BrowserEvent.superClass_.preventDefault.call(this);<tr><td><a id="l346"></a><a href="#l346">346</a><td> var be = this.event_;<tr><td><a id="l347"></a><a href="#l347">347</a><td> if (!be.preventDefault) {<tr><td><a id="l348"></a><a href="#l348">348</a><td> be.returnValue = false;<tr><td><a id="l349"></a><a href="#l349">349</a><td> if (goog.events.BrowserFeature.SET_KEY_CODE_TO_PREVENT_DEFAULT) {<tr><td><a id="l350"></a><a href="#l350">350</a><td> /** @preserveTry */<tr><td><a id="l351"></a><a href="#l351">351</a><td> try {<tr><td><a id="l352"></a><a href="#l352">352</a><td> // Most keys can be prevented using returnValue. Some special keys<tr><td><a id="l353"></a><a href="#l353">353</a><td> // require setting the keyCode to -1 as well:<tr><td><a id="l354"></a><a href="#l354">354</a><td> //<tr><td><a id="l355"></a><a href="#l355">355</a><td> // In IE7:<tr><td><a id="l356"></a><a href="#l356">356</a><td> // F3, F5, F10, F11, Ctrl+P, Crtl+O, Ctrl+F (these are taken from IE6)<tr><td><a id="l357"></a><a href="#l357">357</a><td> //<tr><td><a id="l358"></a><a href="#l358">358</a><td> // In IE8:<tr><td><a id="l359"></a><a href="#l359">359</a><td> // Ctrl+P, Crtl+O, Ctrl+F (F1-F12 cannot be stopped through the event)<tr><td><a id="l360"></a><a href="#l360">360</a><td> //<tr><td><a id="l361"></a><a href="#l361">361</a><td> // We therefore do this for all function keys as well as when Ctrl key<tr><td><a id="l362"></a><a href="#l362">362</a><td> // is pressed.<tr><td><a id="l363"></a><a href="#l363">363</a><td> var VK_F1 = 112;<tr><td><a id="l364"></a><a href="#l364">364</a><td> var VK_F12 = 123;<tr><td><a id="l365"></a><a href="#l365">365</a><td> if (be.ctrlKey || be.keyCode >= VK_F1 && be.keyCode <= VK_F12) {<tr><td><a id="l366"></a><a href="#l366">366</a><td> be.keyCode = -1;<tr><td><a id="l367"></a><a href="#l367">367</a><td> }<tr><td><a id="l368"></a><a href="#l368">368</a><td> } catch (ex) {<tr><td><a id="l369"></a><a href="#l369">369</a><td> // IE throws an 'access denied' exception when trying to change<tr><td><a id="l370"></a><a href="#l370">370</a><td> // keyCode in some situations (e.g. srcElement is input[type=file],<tr><td><a id="l371"></a><a href="#l371">371</a><td> // or srcElement is an anchor tag rewritten by parent's innerHTML).<tr><td><a id="l372"></a><a href="#l372">372</a><td> // Do nothing in this case.<tr><td><a id="l373"></a><a href="#l373">373</a><td> }<tr><td><a id="l374"></a><a href="#l374">374</a><td> }<tr><td><a id="l375"></a><a href="#l375">375</a><td> } else {<tr><td><a id="l376"></a><a href="#l376">376</a><td> be.preventDefault();<tr><td><a id="l377"></a><a href="#l377">377</a><td> }<tr><td><a id="l378"></a><a href="#l378">378</a><td>};<tr><td><a id="l379"></a><a href="#l379">379</a><td><tr><td><a id="l380"></a><a href="#l380">380</a><td><tr><td><a id="l381"></a><a href="#l381">381</a><td>/**<tr><td><a id="l382"></a><a href="#l382">382</a><td> * @return {Event} The underlying browser event object.<tr><td><a id="l383"></a><a href="#l383">383</a><td> */<tr><td><a id="l384"></a><a href="#l384">384</a><td>goog.events.BrowserEvent.prototype.getBrowserEvent = function() {<tr><td><a id="l385"></a><a href="#l385">385</a><td> return this.event_;<tr><td><a id="l386"></a><a href="#l386">386</a><td>};<tr><td><a id="l387"></a><a href="#l387">387</a><td><tr><td><a id="l388"></a><a href="#l388">388</a><td><tr><td><a id="l389"></a><a href="#l389">389</a><td>/** @override */<tr><td><a id="l390"></a><a href="#l390">390</a><td>goog.events.BrowserEvent.prototype.disposeInternal = function() {<tr><td><a id="l391"></a><a 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