Javascript 如何使用 chrome.tabs.onUpdated.addListener？
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How do I use chrome.tabs.onUpdated.addListener?
提问by Haider
I am creating an extension for Chrome. I want to show an alert() with the page URL whenever the user moves from one tab to another, or when the user enters a new URL in a tab.
我正在为 Chrome 创建一个扩展程序。每当用户从一个选项卡移动到另一个选项卡时，或者当用户在选项卡中输入新 URL 时，我都想显示带有页面 URL 的 alert()。
This is not working:
这不起作用：
chrome.tabs.onUpdated.addListener(function(integer tabId, object changeInfo, Tab tab) {
alert(changeInfo.url);
});
chrome.tabs.onActivated.addListener(function(object activeInfo) {
// also please post how to fetch tab url using activeInfo.tabid
});
回答by user278064
Remove integer, objectand Tabin the functions signature. Also change .onUpdatedto .onActivated
删除integer,object并Tab在函数签名中。也.onUpdated改为.onActivated
chrome.tabs.onUpdated.addListener(function(tabId, changeInfo, tab) {
alert(changeInfo.url);
});
chrome.tabs.onActivated.addListener(function(activeInfo) {
// how to fetch tab url using activeInfo.tabid
chrome.tabs.get(activeInfo.tabId, function(tab){
console.log(tab.url);
});
});
