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 * @class 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 /** 79 * initialize 80 * @function 81 */ 82 init: function () { 83 this._fn = {}; 84 var i, val, map = this._fnMap, valL; 85 for (i = 0, l = map.length; i < l; i++) { 86 val = map[i]; 87 if (val && val[1] in document) { 88 for (i = 0, valL = val.length; i < valL; i++) { 89 this._fn[map[0][i]] = val[i]; 90 } 91 break; 92 } 93 } 94 95 this._supportsFullScreen = (typeof this._fn.requestFullscreen !== 'undefined'); 96 this._touchEvent = ('ontouchstart' in window) ? 'touchstart' : 'mousedown'; 97 }, 98 99 /** 100 * return true if it's full now. 101 * @returns {Boolean} 102 */ 103 fullScreen: function () { 104 return this._supportsFullScreen && document[this._fn.fullscreenElement]; 105 }, 106 107 /** 108 * change the screen to full mode. 109 * @param {Element} element 110 * @param {Function} onFullScreenChange 111 */ 112 requestFullScreen: function (element, onFullScreenChange) { 113 if (!this._supportsFullScreen) { 114 return; 115 } 116 117 element = element || document.documentElement; 118 119 if (onFullScreenChange) { 120 var eventName = this._fn.fullscreenchange; 121 if (this._preOnFullScreenChange) { 122 document.removeEventListener(eventName, this._preOnFullScreenChange); 123 } 124 this._preOnFullScreenChange = onFullScreenChange; 125 cc._addEventListener(document, eventName, onFullScreenChange, false); 126 } 127 128 return element[this._fn.requestFullscreen](); 129 }, 130 131 /** 132 * exit the full mode. 133 * @return {Boolean} 134 */ 135 exitFullScreen: function () { 136 return this._supportsFullScreen ? document[this._fn.exitFullscreen]() : true; 137 }, 138 139 /** 140 * Automatically request full screen with a touch/click event 141 * @param {Element} element 142 * @param {Function} onFullScreenChange 143 */ 144 autoFullScreen: function (element, onFullScreenChange) { 145 element = element || document.body; 146 var touchTarget = cc._canvas || element; 147 var theScreen = this; 148 // Function bind will be too complicated here because we need the callback function's reference to remove the listener 149 function callback() { 150 theScreen.requestFullScreen(element, onFullScreenChange); 151 touchTarget.removeEventListener(theScreen._touchEvent, callback); 152 } 153 this.requestFullScreen(element, onFullScreenChange); 154 cc._addEventListener(touchTarget, this._touchEvent, callback); 155 } 156 }; 157 cc.screen.init();