微信分享到朋友圈的脚本奥秘

var dataForWeixin={
   appId:"",
   MsgImg:"http://img1./images/share_msg.png",
   TLImg:"http://img1./images/share.png",
   url:"http:///vote/1",
   title:"input title here",
   desc:"input description here",
   fakeid:"",
   callback:function(){}
};
(function(){
   var onBridgeReady=function(){
   WeixinJSBridge.on('menu:share:appmessage', function(argv){
      WeixinJSBridge.invoke('sendAppMessage',{
         "appid":dataForWeixin.appId,
         "img_url":dataForWeixin.MsgImg,
         "img_width":"120",
         "img_height":"120",
         "link":dataForWeixin.url,
         "desc":dataForWeixin.desc,
         "title":dataForWeixin.title
      }, function(res){(dataForWeixin.callback)();});
   });
   WeixinJSBridge.on('menu:share:timeline', function(argv){
      (dataForWeixin.callback)();
      WeixinJSBridge.invoke('shareTimeline',{
         "img_url":dataForWeixin.TLImg,
         "img_width":"120",
         "img_height":"120",
         "link":dataForWeixin.url,
         "desc":dataForWeixin.desc,
         "title":dataForWeixin.title
      }, function(res){});
   });
   WeixinJSBridge.on('menu:share:weibo', function(argv){
      WeixinJSBridge.invoke('shareWeibo',{
         "content":dataForWeixin.title,
         "url":dataForWeixin.url
      }, function(res){(dataForWeixin.callback)();});
   });
   WeixinJSBridge.on('menu:share:facebook', function(argv){
      (dataForWeixin.callback)();
      WeixinJSBridge.invoke('shareFB',{
         "img_url":dataForWeixin.TLImg,
         "img_width":"120",
         "img_height":"120",
         "link":dataForWeixin.url,
         "desc":dataForWeixin.desc,
         "title":dataForWeixin.title
      }, function(res){});
   });
};
if(document.addEventListener){
   document.addEventListener('WeixinJSBridgeReady', onBridgeReady, false);
}else if(document.attachEvent){
   document.attachEvent('WeixinJSBridgeReady'   , onBridgeReady);
   document.attachEvent('onWeixinJSBridgeReady' , onBridgeReady);
}
})();