1 <!DOCTYPE html> 2 <!-- 3 Copyright (c) 2014 The Chromium Authors. All rights reserved. 4 Use of this source code is governed by a BSD-style license that can be 5 found in the LICENSE file. 6 --> 7 <link rel="import" href="/base/guid.html"> 8 <script> 9 'use strict'; 10 11 tr.exportTo('tr.ui.b', function() { 12 function HotKey(dict) { 13 if (dict.eventType === undefined) 14 throw new Error('eventType must be given'); 15 if (dict.keyCode === undefined && dict.keyCodes === undefined) 16 throw new Error('keyCode or keyCodes must be given'); 17 if (dict.keyCode !== undefined && dict.keyCodes !== undefined) 18 throw new Error('Only keyCode or keyCodes can be given'); 19 if (dict.callback === undefined) 20 throw new Error('callback must be given'); 21 22 this.eventType_ = dict.eventType; 23 this.keyCodes_ = []; 24 25 if (dict.keyCode) 26 this.pushKeyCode_(dict.keyCode); 27 else if (dict.keyCodes) { 28 dict.keyCodes.forEach(this.pushKeyCode_, this); 29 } 30 31 this.useCapture_ = !!dict.useCapture; 32 this.callback_ = dict.callback; 33 this.thisArg_ = dict.thisArg !== undefined ? dict.thisArg : undefined; 34 35 this.helpText_ = dict.helpText !== undefined ? dict.helpText : undefined; 36 } 37 38 HotKey.prototype = { 39 get eventType() { 40 return this.eventType_; 41 }, 42 43 get keyCodes() { 44 return this.keyCodes_; 45 }, 46 47 get helpText() { 48 return this.helpText_; 49 }, 50 51 call: function(e) { 52 this.callback_.call(this.thisArg_, e); 53 }, 54 55 pushKeyCode_: function(keyCode) { 56 this.keyCodes_.push(keyCode); 57 } 58 }; 59 60 return { 61 HotKey: HotKey 62 }; 63 }); 64 </script> 65
