JavaScript全屏和退出全屏事件总结（附代码）

 window.isflsgrn = false;//ie11以下是否进入全屏标志，true为全屏状态，false为非全屏状态 window.ieIsfSceen = false;//ie11是否进入全屏标志，true为全屏状态，false为非全屏状态 //跨浏览器返回当前 document 是否进入了可以请求全屏模式的状态 function fullscreenEnable(){ var isFullscreen = document.fullscreenEnabled || window.fullScreen || document.mozFullscreenEnabled || document.webkitIsFullScreen; return isFullscreen; } //全屏 var fScreen = function(){ var docElm = document.documentElement; if (docElm.requestFullscreen) { docElm.requestFullscreen(); } else if (docElm.msRequestFullscreen) { docElm.msRequestFullscreen(); ieIsfSceen = true; } else if (docElm.mozRequestFullScreen) { docElm.mozRequestFullScreen(); } else if (docElm.webkitRequestFullScreen) { docElm.webkitRequestFullScreen(); }else {//对不支持全屏API浏览器的处理，隐藏不需要显示的元素 window.parent.hideTopBottom(); isflsgrn = true; $("#fsbutton").text("退出全屏"); } } //退出全屏 var cfScreen = function(){ if (document.exitFullscreen) { document.exitFullscreen(); } else if (document.msExitFullscreen) { document.msExitFullscreen(); } else if (document.mozCancelFullScreen) { document.mozCancelFullScreen(); } else if (document.webkitCancelFullScreen) { document.webkitCancelFullScreen(); }else { window.parent.showTopBottom(); isflsgrn = false; $("#fsbutton").text("全屏"); } } //全屏按钮点击事件 $("#fsbutton").click(function(){ var isfScreen = fullscreenEnable(); if(!isfScreen && isflsgrn == false){ if (ieIsfSceen == true) { document.msExitFullscreen(); ieIsfSceen = false; return; } fScreen(); }else{ cfScreen(); } }) //键盘操作 $(document).keydown(function (event) { if(event.keyCode == 27 && ieIsfSceen == true){ ieIsfSceen = false; } }); //监听状态变化 if (window.addEventListener) { document.addEventListener('fullscreenchange', function(){ if($("#fsbutton").text() == "全屏"){ $("#fsbutton").text("退出全屏"); }else{ $("#fsbutton").text("全屏"); } }); document.addEventListener('webkitfullscreenchange', function(){ if($("#fsbutton").text() == "全屏"){ $("#fsbutton").text("退出全屏"); }else{ $("#fsbutton").text("全屏"); } }); document.addEventListener('mozfullscreenchange', function(){ if($("#fsbutton").text() == "全屏"){ $("#fsbutton").text("退出全屏"); }else{ $("#fsbutton").text("全屏"); } }); document.addEventListener('MSFullscreenChange', function(){ if($("#fsbutton").text() == "全屏"){ $("#fsbutton").text("退出全屏"); }else{ $("#fsbutton").text("全屏"); } }); }