从弹出窗口发送消息到内容脚本? [英] Send message from popup to content script?
问题描述
我尝试过以下操作:
// popup.js
document.addEventListener('DOMContentLoaded',function(){
document.querySelector 'button')。addEventListener('click',clicked);
main();
});
function clicked(){
chrome.tabs.getCurrent(
function(tab){
console.log(tab);
chrome.tabs .sendMessage(tab.id,doSomething);
}
);
}
在内容脚本中:
chrome.extension.onMessage.addListener(
函数(message,sender,sendResponse){
console.log(hello world);
}
);
问题是,在选项卡
您是否为manifest.json中的选项卡授予权限,如此处所示。
权限:[
],
此外,以下代码返回的tab.id是弹出视图(NOT A CONTENT SCRIPT TAB.ID)
chrome.tabs.getCurrent(
function标签){
console.log(tab);
chrome.tabs.sendMessage(tab.id,doSomething);
}
);
如果要发送消息到标签,您正在浏览使用以下代码的tab.id,它给出正确结果
chrome.tabs.query({status:complete,windowId:chrome.windows.WINDOW_ID_CURRENT, active:true},function(tabs){
console.log(JSON.stringify(tabs [0]));
console.log(tabs [0] .id);
});
如果您需要更多信息,请通知我
Suppose I want to run a content script when I click a button in the popup page in a google chrome extension?
I have tried the following:
//popup.js
document.addEventListener('DOMContentLoaded', function () {
document.querySelector('button').addEventListener('click', clicked);
main();
});
function clicked(){
chrome.tabs.getCurrent(
function(tab){
console.log(tab);
chrome.tabs.sendMessage(tab.id, "doSomething");
}
);
}
And in the content script:
chrome.extension.onMessage.addListener(
function(message, sender, sendResponse){
console.log("hello world");
}
);
The problem is that the tab
in the callback from chrome.tabs.getCurrent( )
is undefined.
Have you given permissions for tabs in manifest.json as shown here.
"permissions": [
"tabs"
],
Moreover tab.id which the following code returns is of popup view (NOT A CONTENT SCRIPT TAB.ID)
chrome.tabs.getCurrent(
function(tab){
console.log(tab);
chrome.tabs.sendMessage(tab.id, "doSomething");
}
);
If you want to send message to tab you are browsing use following code's tab.id, it gives correct results
chrome.tabs.query({"status":"complete","windowId":chrome.windows.WINDOW_ID_CURRENT,"active":true}, function(tabs){
console.log(JSON.stringify(tabs[0]));
console.log(tabs[0].id);
});
Let me know if you need more information
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