VLC 插件的检测

2024-05-15 07:32

文章标签 检测插件 vlc

本文主要是介绍VLC 插件的检测，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

最近做的一个海底观测网项目，其中流媒体用到了VLC插件。

在网页中实时播放视频，检测用户的浏览器中是否已安装了该插件，代码如下：

Js代码    
 <%@ page pageEncoding="UTF-8" contentType="text/html;charset=UTF-8"%>  
 <%@ include file="../../include/taglibs.jsp"%>  
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"  
 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
   
 <html xmlns="http://www.w3.org/1999/xhtml">  
 <head>  
 <title>视频显示</title>  
 <meta http-equiv="content-type" content="text/html; charset=utf-8" />  
 <meta http-equiv="imagetoolbar" content="no" />  
 <meta name="apple-mobile-web-app-capable" content="yes" />   
   
 <script type="text/javascript" src="${basePath}/js/jquery-1.4.2.min.js"></script>  
 <script type="text/javascript" src="${basePath}/page/player/jwplayer/jwplayer.js"></script>  
 <script type="text/javascript" src="${basePath}/page/player/jwplayer/jwplayer.js">jwplayer.key="ABCDEFGHIJKLMOPQ";</script>  
   
       <script type="text/javascript">  
          //仅适用于IE浏览器是，并且安装有vlc插件，则返回true；  
             function isInsalledIEVLC(){    
                 var vlcObj = null;  
                 var vlcInstalled= false;   
                 try {  
                     vlcObj = new ActiveXObject("VideoLAN.Vlcplugin.1");   
                     if( vlcObj != null ){   
                         vlcInstalled = true   
                     }  
                 } catch (e) {  
                     vlcInstalled= false;  
                 }          
                 return vlcInstalled;  
             }   
            
             //仅适用于firefox浏览器是，并且安装有vlc插件，则返回true；  
             function isInsalledFFVLC(){  
                  var numPlugins=navigator.plugins.length;  
                  for  (i=0;i<numPlugins;i++){   
                       plugin=navigator.plugins[i];  
                       if(plugin.name.indexOf("VideoLAN") > -1 || plugin.name.indexOf("VLC") > -1){   
                          return true;  
                     }  
                  }  
                  return false;  
             }  
   
                    /* 浏览器检测 */  
             function checkBrowser(){  
                 var browser=navigator.appName  
                 var b_version=navigator.appVersion  
                 var version=parseFloat(b_version)  
                 if ( browser=="Netscape"  && version>=4) {  
                     if(isInsalledFFVLC()){  
                         alert("已装VLC插件");  
                     }else{  
                         alert("未装VLC插件");  
                     }  
                 }else if(browser=="Microsoft Internet Explorer" && version>=4) {  
                     if(isInsalledIEVLC()){  
                         alert("已装VLC插件");  
                     }else{  
                         alert("未装VLC插件");  
                     }  
                 }  
             }  
      </script>  
 </head>  
 <body οnlοad="checkBrowser();">   
  </body>  
 </html>   