notifications.getAll() 编辑

Gets all currently active notifications created by the extension.

This is an asynchronous function that returns a Promise.

Syntax

var gettingAll = browser.notifications.getAll()

Parameters

None.

Return value

A Promise that will be fulfilled with an object. Each currently active notification is a property of this object: the name of the property is the ID of the notification, and the value of the property is a notifications.NotificationOptions object describing that notification.

Note that you can define an ID for a notification explicitly by passing it into notifications.create(). If you don't do this, the browser will generate one. Explicitly-specified IDs are strings, but generated IDs are numbers. 

Browser compatibility

BCD tables only load in the browser

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Examples

This example shows a notification when the user clicks a browser action, unless the notification was already being shown, in which case it clears the notification. It uses getAll() to figure out whether the notification is being shown:

var myNotification = "my-notification";

function toggleAlarm(all) {
  let ids = Object.keys(all);
  if (ids.indexOf(myNotification) != -1) {
    browser.notifications.clear(myNotification);
  } else {
    console.log("showing")

    browser.notifications.create(myNotification, {
      "type": "basic",
      "title": "Am imposing title",
      "message": "Some interesting content"
    });
  }
}

function handleClick() {
  console.log("clicked")
  browser.notifications.getAll().then(toggleAlarm);
}

browser.browserAction.onClicked.addListener(handleClick);

This example logs the title of all active notifications:

function logNotifications(all) {
  for (let id in all) {
    console.log(`Title: ${all[id].title}`);
  }
}

browser.notifications.getAll().then(logNotifications);

This API is based on Chromium's chrome.notifications API.

Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.