我正在尝试为 chrome 扩展制作弹出界面.我似乎无法从 popup.html/popup.js 向 content.js 脚本发送消息.这是我到目前为止所拥有的.当我单击扩展图标时，我会看到一个显示 clickme 的按钮.我单击它并没有任何反应，chrome javascript 控制台中没有错误，也没有给 content.js 的消息.
I'm trying to make a popup interface for a chrome extension. I can't seem to send a message from the popup.html/popup.js to the content.js script. Here's what I have so far. When I click on the extension icon I get a button that says clickme. I click it and nothing happens, no errors in the chrome javascript console, and no message to content.js.
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{ "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'", "manifest_version": 2, "name": "extensiontest", "version": "0.2", "content_scripts": [ { "matches": [ "<all_urls>" ], "js": ["content.js"] } ], "browser_action": { "default_icon": "Beaker.png", "default_popup":"popup.html" }, "background": { "scripts": ["background.js"] }, "permissions": [ "tabs" ] }popup.html
<html> <head></head> <script src="popup.js"></script> <body> <input id="button1" type=button value=clickme> </body></html>popup.js
function popup(){ alert(1); chrome.tabs.query({active: true, currentWindow: true}, function(tabs) { var activeTab = tabs[0]; chrome.tabs.sendMessage(activeTab.id, {"message": "start"}); }); button1=document.getElementById("button1"); button1.addEventListener('click', popup) }content.js
chrome.runtime.onMessage.addListener( function(request, sender, sendResponse) { if( request.message === "start" ) { start(); } } ); function start(){ alert("started"); } 推荐答案我修改了你的 popup.js 并使用 DOMContentLoaded 作为 Chrome 扩展，建议如下:
I modified your popup.js and used DOMContentLoaded as Chrome extension suggested like:
popup.js:
function popup() { chrome.tabs.query({currentWindow: true, active: true}, function (tabs){ var activeTab = tabs[0]; chrome.tabs.sendMessage(activeTab.id, {"message": "start"}); }); } document.addEventListener("DOMContentLoaded", function() { document.getElementById("button1").addEventListener("click", popup); });content.js:
chrome.runtime.onMessage.addListener( function(request, sender, sendResponse) { if( request.message === "start" ) { start(); } } ); function start(){ alert("started"); }popup.html:
<!DOCTYPE html> <html> <head></head> <script src="popup.js"></script> <body> <input id="button1" type=button value=clickme> </body></html>我已经测试过它可以工作.
I've tested on my end it works.
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