我正在尝试实现我自己的 chrome 扩展,在某个事件上,创建浏览器通知并使用在 background.js 中计算的数据填充弹出窗口
这是我的manifest.json
文件:
{
"name": "Dummy name",
"description": "Description",
"manifest_version": 2,
"version": "1.1.3",
"icons": {
"16": "icon_16.png",
"48": "icon_48.png",
"128": "icon_128.png",
"256": "icon_256.png"
},
"browser_action": {
"default_icon": "icon_48.png",
"default_title": "Test",
"default_popup": "popup.html"
},
"permissions": ["background","webRequest","webRequestBlocking","webNavigation","tabs","notifications"],
"background": {
"scripts":["jquery-1.8.1.min.js","classy.js","background.js"]
}
}
我的sendMessage
呼唤background.js
show : function(result) {
var that = this;
chrome.extension.sendMessage({greeting: "hello"}, function(response) {
console.log(response);
});
if(window.webkitNotifications) {
var notification = webkitNotifications.createHTMLNotification('notification.html');
notification.show();
setTimeout(function(){
notification.cancel();
}, '7000');
}
}
我的消息监听器popup.js
(来自 chrome 扩展示例)
chrome.extension.onMessage.addListener(
function(request, sender, sendResponse) {
console.log(sender.tab ?
"from a content script:" + sender.tab.url :
"from the extension");
if (request.greeting == "hello")
sendResponse({farewell: "goodbye"});
});
我得到的唯一错误是
端口错误:无法建立连接。接收端不存在。
谢谢您的帮助!