1 /**************************************************************************** 2 Copyright (c) 2010-2012 cocos2d-x.org 3 Copyright (c) 2008-2010 Ricardo Quesada 4 Copyright (c) 2011 Zynga Inc. 5 6 http://www.cocos2d-x.org 7 8 Permission is hereby granted, free of charge, to any person obtaining a copy 9 of this software and associated documentation files (the "Software"), to deal 10 in the Software without restriction, including without limitation the rights 11 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 copies of the Software, and to permit persons to whom the Software is 13 furnished to do so, subject to the following conditions: 14 15 The above copyright notice and this permission notice shall be included in 16 all copies or substantial portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 21 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 THE SOFTWARE. 25 ****************************************************************************/ 26 27 /** 28 * @namespace The fullscreen API provides an easy way for web content to be presented using the user's entire screen. 29 * It's invalid on safari,QQbrowser and android browser 30 * @name cc.screen 31 */ 32 cc.screen = /** @lends cc.screen# */{ 33 _supportsFullScreen: false, 34 // the pre fullscreenchange function 35 _preOnFullScreenChange: null, 36 _touchEvent: "", 37 _fn: null, 38 // Function mapping for cross browser support 39 _fnMap: [ 40 [ 41 'requestFullscreen', 42 'exitFullscreen', 43 'fullscreenchange', 44 'fullscreenEnabled', 45 'fullscreenElement' 46 ], 47 [ 48 'requestFullScreen', 49 'exitFullScreen', 50 'fullScreenchange', 51 'fullScreenEnabled', 52 'fullScreenElement' 53 ], 54 [ 55 'webkitRequestFullScreen', 56 'webkitCancelFullScreen', 57 'webkitfullscreenchange', 58 'webkitIsFullScreen', 59 'webkitCurrentFullScreenElement' 60 ], 61 [ 62 'mozRequestFullScreen', 63 'mozCancelFullScreen', 64 'mozfullscreenchange', 65 'mozFullScreen', 66 'mozFullScreenElement' 67 ], 68 [ 69 'msRequestFullscreen', 70 'msExitFullscreen', 71 'MSFullscreenChange', 72 'msFullscreenEnabled', 73 'msFullscreenElement' 74 ] 75 ], 76 77 init: function () { 78 this._fn = {}; 79 var i, val, map = this._fnMap, valL; 80 for (i = 0, l = map.length; i < l; i++ ) { 81 val = map[ i ]; 82 if ( val && val[1] in document ) { 83 for ( i = 0, valL = val.length; i < valL; i++ ) { 84 this._fn[ map[0][ i ] ] = val[ i ]; 85 } 86 break; 87 } 88 } 89 90 this._supportsFullScreen = (this._fn.requestFullscreen != undefined); 91 this._touchEvent = ('ontouchstart' in window) ? 'touchstart' : 'mousedown'; 92 }, 93 94 /** 95 * return true if it's full now. 96 * @returns {Boolean} 97 */ 98 fullScreen: function() { 99 return this._supportsFullScreen && document[ this._fn.fullscreenEnabled ]; 100 }, 101 102 /** 103 * change the screen to full mode. 104 * @param {Element} element 105 * @param {Function} onFullScreenChange 106 */ 107 requestFullScreen: function (element, onFullScreenChange) { 108 if (!this._supportsFullScreen) return; 109 110 element = element || document.documentElement; 111 element[ this._fn.requestFullscreen ](); 112 113 if (onFullScreenChange) { 114 var eventName = this._fn.fullscreenchange; 115 if (this._preOnFullScreenChange) 116 document.removeEventListener(eventName, this._preOnFullScreenChange); 117 this._preOnFullScreenChange = onFullScreenChange; 118 document.addEventListener(eventName, onFullScreenChange, false); 119 } 120 121 return element[ this._fn.requestFullscreen ](); 122 }, 123 124 /** 125 * exit the full mode. 126 */ 127 exitFullScreen: function () { 128 return this._supportsFullScreen ? document[ this._fn.exitFullscreen ]() : true; 129 }, 130 131 /** 132 * Automatically request full screen with a touch/click event 133 * @param {Element} element 134 * @param {Function} onFullScreenChange 135 */ 136 autoFullScreen: function (element, onFullScreenChange) { 137 element = element || document.body; 138 var touchTarget = cc._canvas || element; 139 var theScreen = this; 140 // Function bind will be too complicated here because we need the callback function's reference to remove the listener 141 function callback() { 142 theScreen.requestFullScreen(element, onFullScreenChange); 143 touchTarget.removeEventListener(theScreen._touchEvent, callback); 144 } 145 this.requestFullScreen(element, onFullScreenChange); 146 touchTarget.addEventListener(this._touchEvent, callback); 147 } 148 }; 149 cc.screen.init();