如何从开发工具扩展中提取加载的JavaScript文件 [英] How to extract the loaded javascript files from Dev Tools extension
问题描述
我正在研究一个Chrome扩展,希望从当前页面加载JavaScript文件,修改它们(美化),然后更新开发工具来源面板。
作为回退选项 - 我不重写通常的来源面板 - 而是将它们放在自定义面板中。 (有了这个选项,我需要的只是网络面板中加载的网络资源列表 - 结果)
理想情况下,我想重写源代码的页面尽管如此,希望使用开发工具可用的调试工具。
我不知道有可能替换在飞行中的脚本。
但是,您可以从devtools-panel中将一些代码注入到当前检查的网页中,如下所示:
chrome.devtools .panels.create(
'your-extension-name',
'icon.png',
'panel.html',
function(pPanel){
pPanel.onShown.addListener(function(){
var scriptToInject = function(){
document.addEventListener('DOMContentLoaded',function(){
var script = document.getElementsByTagName('script ')[0];
var parent = script.parentElement;
parent.removeChild(script);
var newScript = document.createElement('script');
newScript.textContent ='xxx'; //无效
parent.appendChild(newScript);
},false);
};
//重新加载
chrome.devtools.inspectedWindow.reload({
injectScript:'('+ scriptToInject.toString()+'())
});
});
});
I'm working on a chrome extension that wants to load javascript files from the current page, modify them (prettify), then update the Dev Tools Sources panel.
As a fall-back option - I don't override the usual Sources panel - But rather put them in a custom panel. (With this option, all I'd need is a list of the network resources loaded -results in the Network panel)
Ideally I'd like to override the source's pages though, in the hopes of using the debugging tools available to the dev tools.
I don't know it's possible to replace the script on the fly. But you can inject some code from devtools-panel into the currently inspected web page as follows:
chrome.devtools.panels.create(
'your-extension-name',
'icon.png',
'panel.html',
function (pPanel) {
pPanel.onShown.addListener(function () {
var scriptToInject = function () {
document.addEventListener('DOMContentLoaded', function () {
var script = document.getElementsByTagName('script')[0];
var parent = script.parentElement;
parent.removeChild(script);
var newScript = document.createElement('script');
newScript.textContent = 'xxx'; // Doesn't work?
parent.appendChild(newScript);
}, false);
};
// Reloads the page.
chrome.devtools.inspectedWindow.reload({
injectedScript: '(' + scriptToInject.toString() + '())'
});
});
});
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