關于判斷是否安裝flash

//是否安裝了flash

function flashChecker() {

var hasFlash = 0; //是否安裝了flash

var flashVersion = 0; //flash版本

if (document.all) {

var swf = new ActiveXObject('ShockwaveFlash.ShockwaveFlash');

if (swf) {

hasFlash = 1;

VSwf = swf.GetVariable("$version");

flashVersion = parseInt(VSwf.split(" ")[1].split(",")[0]);

}

} else {

if (navigator.plugins && navigator.plugins.length > 0) {

var swf = navigator.plugins["Shockwave Flash"];

if (swf) {

hasFlash = 1;

var words = swf.description.split(" ");

for (var i = 0; i < words.length; ++i) {

if (isNaN(parseInt(words[i]))) continue;

flashVersion = parseInt(words[i]);

}

}

}

}

return { f: hasFlash, v: flashVersion };

}

var isSafari = /Safari/.test(navigator.userAgent)// Safari浏覽器

var oScriptFirst = document.getElementsByTagName('script')[0];//頁面中第一個script标簽

var newScript = document.createElement('script');//建立一個script标簽

if(isSafari){

newScript.src=videojsURL;//設定src

var ovideo = document.getElementById('example-video');//擷取video标簽

var osource =ovideo.getElementsByTagName('source')[0];

osource.setAttribute('src',om3u8);

}else{

if(!flashChecker().f){

var str = '您沒有安裝flash請下載下傳安裝<a target="_blank" href="https://get2.adobe.com/cn/flashplayer/" target="_blank" rel="external nofollow" style="color:#c90000">點選下載下傳</a>';

$("#video_box").html(str).attr("style","line-height: 400px;text-align: center;font-size: 16px;");

}else{

var videoObject = {

container: '#video_box',//“#”代表容器的ID，“.”或“”代表容器的class

variable: 'player',//該屬性必需設定，值等于下面的new chplayer()的對象

autoplay:true,

live:false,//直播為true;時移false

poster:my_pic,

video:om3u8//視訊位址

};

var player=new ckplayer(videoObject);

}

}

oScriptFirst.parentNode.insertBefore(newScript,oScriptFirst);//videojs插入第一個script元素之前

newScript.onload = function(){//js加載完畢調用初始化

if(isSafari){

videojs('example-video',{

controls: true,//是否控制條

autoplay: true,//自動播放

preload: 'auto'//預加載

},function(){

this.on('playing', function() {

ovideo.muted = false;

});

});

}

};