1 /**************************************************************************** 2 Copyright (c) 2008-2010 Ricardo Quesada 3 Copyright (c) 2011-2012 cocos2d-x.org 4 Copyright (c) 2013-2014 Chukong Technologies 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 * 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 * @namespace 31 * @name cc.screen 32 */ 33 cc.screen = /** @lends cc.screen# */{ 34 _supportsFullScreen: false, 35 // the pre fullscreenchange function 36 _preOnFullScreenChange: null, 37 _touchEvent: "", 38 _fn: null, 39 // Function mapping for cross browser support 40 _fnMap: [ 41 [ 42 'requestFullscreen', 43 'exitFullscreen', 44 'fullscreenchange', 45 'fullscreenEnabled', 46 'fullscreenElement' 47 ], 48 [ 49 'requestFullScreen', 50 'exitFullScreen', 51 'fullScreenchange', 52 'fullScreenEnabled', 53 'fullScreenElement' 54 ], 55 [ 56 'webkitRequestFullScreen', 57 'webkitCancelFullScreen', 58 'webkitfullscreenchange', 59 'webkitIsFullScreen', 60 'webkitCurrentFullScreenElement' 61 ], 62 [ 63 'mozRequestFullScreen', 64 'mozCancelFullScreen', 65 'mozfullscreenchange', 66 'mozFullScreen', 67 'mozFullScreenElement' 68 ], 69 [ 70 'msRequestFullscreen', 71 'msExitFullscreen', 72 'MSFullscreenChange', 73 'msFullscreenEnabled', 74 'msFullscreenElement' 75 ] 76 ], 77 78 init: function () { 79 this._fn = {}; 80 var i, val, map = this._fnMap, valL; 81 for (i = 0, l = map.length; i < l; i++ ) { 82 val = map[ i ]; 83 if ( val && val[1] in document ) { 84 for ( i = 0, valL = val.length; i < valL; i++ ) { 85 this._fn[ map[0][ i ] ] = val[ i ]; 86 } 87 break; 88 } 89 } 90 91 this._supportsFullScreen = (this._fn.requestFullscreen != undefined); 92 this._touchEvent = ('ontouchstart' in window) ? 'touchstart' : 'mousedown'; 93 }, 94 95 /** 96 * return true if it's full now. 97 * @returns {Boolean} 98 */ 99 fullScreen: function() { 100 return this._supportsFullScreen && document[ this._fn.fullscreenEnabled ]; 101 }, 102 103 /** 104 * change the screen to full mode. 105 * @param {Element} element 106 * @param {Function} onFullScreenChange 107 */ 108 requestFullScreen: function (element, onFullScreenChange) { 109 if (!this._supportsFullScreen) return; 110 111 element = element || document.documentElement; 112 element[ this._fn.requestFullscreen ](); 113 114 if (onFullScreenChange) { 115 var eventName = this._fn.fullscreenchange; 116 if (this._preOnFullScreenChange) 117 document.removeEventListener(eventName, this._preOnFullScreenChange); 118 this._preOnFullScreenChange = onFullScreenChange; 119 cc._addEventListener(document, eventName, onFullScreenChange, false); 120 } 121 122 return element[ this._fn.requestFullscreen ](); 123 }, 124 125 /** 126 * exit the full mode. 127 */ 128 exitFullScreen: function () { 129 return this._supportsFullScreen ? document[ this._fn.exitFullscreen ]() : true; 130 }, 131 132 /** 133 * Automatically request full screen with a touch/click event 134 * @param {Element} element 135 * @param {Function} onFullScreenChange 136 */ 137 autoFullScreen: function (element, onFullScreenChange) { 138 element = element || document.body; 139 var touchTarget = cc._canvas || element; 140 var theScreen = this; 141 // Function bind will be too complicated here because we need the callback function's reference to remove the listener 142 function callback() { 143 theScreen.requestFullScreen(element, onFullScreenChange); 144 touchTarget.removeEventListener(theScreen._touchEvent, callback); 145 } 146 this.requestFullScreen(element, onFullScreenChange); 147 cc._addEventListener(touchTarget, this._touchEvent, callback); 148 } 149 }; 150 cc.screen.init();