Question

我写了一个Greasemonkey脚本来在YouTube页面上插入一个脚本，在加载脚本后，替换内容的文本（“下载”到日语单词（在这个问题中，我将使用“TEST”代替。））。

但是，脚本不能按照我想要的方式工作。

我想将此插入html;

＆lt; script type =“text / javascript”src =“http://userscripts.org/scripts/source/25105.user.js”onload =“var elements = document.getElementsByClassName（'yt-uix-button -content'）; for（var i = 0; i＆lt; elements.length; i ++）elements [i] .innerHTML.replace（'Download'，'TEST'）;“＆gt;＆lt; / script＆gt;

但实际插入的是这个（onload =“”缺失。）;

＆lt; script type =“text / javascript”src =“http://userscripts.org/scripts/source/25105.user.js"></script＆gt;

有什么问题？

// Start script
window.addEventListener("load",function(){
if ((document.URL.match("www.youtube.com/watch?"))||(document.URL.match("c.youtube.com/videoplayback?"))) {
var head = document.getElementsByTagName('head')[0];
var script = document.createElement('script');
script.type = 'text/javascript';
script.src = 'http://userscripts.org/scripts/source/25105.user.js';
script.onload = "var elements=document.getElementsByClassName('yt-uix-button-content');for(var i=0;i<elements.length;i++)elements[i].innerHTML.replace('Download','TEST');"; //Not working
head.appendChild(script);
};},!1);
// End

Answer 1

尝试类似：

window.addEventListener("load", function(){
    if ((document.URL.match("www.youtube.com/watch?"))||(document.URL.match("c.youtube.com/videoplayback?"))) {
        var head = document.getElementsByTagName('head')[0];
        var script = document.createElement('script');
        script.type = 'text/javascript';
        script.src = 'http://userscripts.org/scripts/source/25105.user.js';

        if( script.readyState ) {
            script.onreadystatechange = function() {
                if( script.readyState == 'loaded' || scriptTag.readyState == 'complete' ) {
                    script.onreadystatechange = null;
                    scriptHandler();
                }
            };
        }
        else {
            script.onload = function() {
                scriptHandler();
            };
        }
        head.appendChild(script);
    }
},false);


function scriptHandler() {
    var scriptContent = document.createElement('script');
    var s = document.getElementsByTagName('head')[0];
    scriptContent.type = 'text/javascript';
    scriptContent.text = "var elements=document.getElementsByClassName('yt-uix-button-content');for(var i=0;i<elements.length;i++)elements[i].innerHTML.replace('Download','TEST');";
    s.appendChild(scriptContent);
}

用于更改youtube页面的Greasemonkey脚本无法正常工作

1 个答案: