webextension解説２回め。

background-script.js

chrome.runtime.onMessage.addListener(notify);
console.log("background")
function notify(message) {
  console.log("background script received message");
/*  chrome.notifications.create({
    "type": "basic",
    "iconUrl": chrome.extension.getURL("link.png"),
    "title": "You clicked a link!",
    "message": message.url
  });
*/
  //リスナーの追加
  chrome.alarms.onAlarm.addListener(eventhacker);
  chrome.alarms.create("helloworld",{ delayInMinutes: 5 })
}

//このメソッドはギャグですので使用時にはご注意下さい。
function eventhacker(alarmobj){
console.log("alarm catched");
console.log(alarmobj);
}