使用javascript拦截所有文档链接点击 [英] use javascript to intercept all document link clicks

问题描述

如何拦截文档中的链接点击?它必须是跨平台的.

how do I intercept link clicks in document? it must be cross-platform.

我正在寻找这样的东西:

I am looking for something like this:

// content is a div with innerHTML
var content = document.getElementById("ControlPanelContent");

content.addEventListener("click", ContentClick, false);

 function ContentClick(event) {

    if(event.href == "http://oldurl")
  {
     event.href = "http://newurl";
  }
} 

预先感谢您的帮助.

推荐答案

for (var ls = document.links, numLinks = ls.length, i=0; i<numLinks; i++){
    ls[i].href= "...torture puppies here...";
}

或者，如果您只想拦截而不是更改，请添加一个 onclick 处理程序.这将在导航到 url 之前被调用:

alternatively if you just want to intercept, not change, add an onclick handler. This will get called before navigating to the url:

var handler = function(){
    ...torment kittens here...
}
for (var ls = document.links, numLinks = ls.length, i=0; i<numLinks; i++){
    ls[i].onclick= handler;
}

请注意，document.links 还包含带有 href 属性的 AREA 元素 - 而不仅仅是 A 元素.

Note that document.links also contains AREA elements with a href attribute - not just A elements.

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