199 lines
6.6 KiB
Markdown
199 lines
6.6 KiB
Markdown
# Notification
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> Create OS desktop notifications
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Process: [Main](../glossary.md#main-process)
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:::info Renderer process notifications
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If you want to show notifications from a renderer process you should use the
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[web Notifications API](../tutorial/notifications.md)
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:::
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## Class: Notification
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> Create OS desktop notifications
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Process: [Main](../glossary.md#main-process)
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`Notification` is an [EventEmitter][event-emitter].
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It creates a new `Notification` with native properties as set by the `options`.
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### Static Methods
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The `Notification` class has the following static methods:
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#### `Notification.isSupported()`
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Returns `boolean` - Whether or not desktop notifications are supported on the current system
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### `new Notification([options])`
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* `options` Object (optional)
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* `title` string (optional) - A title for the notification, which will be displayed at the top of the notification window when it is shown.
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* `subtitle` string (optional) _macOS_ - A subtitle for the notification, which will be displayed below the title.
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* `body` string (optional) - The body text of the notification, which will be displayed below the title or subtitle.
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* `silent` boolean (optional) - Whether or not to suppress the OS notification noise when showing the notification.
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* `icon` (string | [NativeImage](native-image.md)) (optional) - An icon to use in the notification.
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* `hasReply` boolean (optional) _macOS_ - Whether or not to add an inline reply option to the notification.
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* `timeoutType` string (optional) _Linux_ _Windows_ - The timeout duration of the notification. Can be 'default' or 'never'.
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* `replyPlaceholder` string (optional) _macOS_ - The placeholder to write in the inline reply input field.
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* `sound` string (optional) _macOS_ - The name of the sound file to play when the notification is shown.
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* `urgency` string (optional) _Linux_ - The urgency level of the notification. Can be 'normal', 'critical', or 'low'.
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* `actions` [NotificationAction[]](structures/notification-action.md) (optional) _macOS_ - Actions to add to the notification. Please read the available actions and limitations in the `NotificationAction` documentation.
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* `closeButtonText` string (optional) _macOS_ - A custom title for the close button of an alert. An empty string will cause the default localized text to be used.
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* `toastXml` string (optional) _Windows_ - A custom description of the Notification on Windows superseding all properties above. Provides full customization of design and behavior of the notification.
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### Instance Events
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Objects created with `new Notification` emit the following events:
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:::info
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Some events are only available on specific operating systems and are labeled as such.
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:::
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#### Event: 'show'
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Returns:
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* `event` Event
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Emitted when the notification is shown to the user. Note that this event can be fired
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multiple times as a notification can be shown multiple times through the
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`show()` method.
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#### Event: 'click'
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Returns:
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* `event` Event
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Emitted when the notification is clicked by the user.
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#### Event: 'close'
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Returns:
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* `event` Event
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Emitted when the notification is closed by manual intervention from the user.
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This event is not guaranteed to be emitted in all cases where the notification
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is closed.
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#### Event: 'reply' _macOS_
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Returns:
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* `event` Event
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* `reply` string - The string the user entered into the inline reply field.
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Emitted when the user clicks the "Reply" button on a notification with `hasReply: true`.
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#### Event: 'action' _macOS_
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Returns:
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* `event` Event
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* `index` number - The index of the action that was activated.
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#### Event: 'failed' _Windows_
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Returns:
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* `event` Event
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* `error` string - The error encountered during execution of the `show()` method.
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Emitted when an error is encountered while creating and showing the native notification.
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### Instance Methods
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Objects created with the `new Notification()` constructor have the following instance methods:
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#### `notification.show()`
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Immediately shows the notification to the user. Unlike the web notification API,
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instantiating a `new Notification()` does not immediately show it to the user. Instead, you need to
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call this method before the OS will display it.
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If the notification has been shown before, this method will dismiss the previously
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shown notification and create a new one with identical properties.
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#### `notification.close()`
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Dismisses the notification.
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### Instance Properties
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#### `notification.title`
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A `string` property representing the title of the notification.
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#### `notification.subtitle`
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A `string` property representing the subtitle of the notification.
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#### `notification.body`
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A `string` property representing the body of the notification.
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#### `notification.replyPlaceholder`
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A `string` property representing the reply placeholder of the notification.
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#### `notification.sound`
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A `string` property representing the sound of the notification.
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#### `notification.closeButtonText`
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A `string` property representing the close button text of the notification.
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#### `notification.silent`
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A `boolean` property representing whether the notification is silent.
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#### `notification.hasReply`
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A `boolean` property representing whether the notification has a reply action.
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#### `notification.urgency` _Linux_
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A `string` property representing the urgency level of the notification. Can be 'normal', 'critical', or 'low'.
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Default is 'low' - see [NotifyUrgency](https://developer-old.gnome.org/notification-spec/#urgency-levels) for more information.
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#### `notification.timeoutType` _Linux_ _Windows_
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A `string` property representing the type of timeout duration for the notification. Can be 'default' or 'never'.
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If `timeoutType` is set to 'never', the notification never expires. It stays open until closed by the calling API or the user.
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#### `notification.actions`
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A [`NotificationAction[]`](structures/notification-action.md) property representing the actions of the notification.
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#### `notification.toastXml` _Windows_
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A `string` property representing the custom Toast XML of the notification.
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### Playing Sounds
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On macOS, you can specify the name of the sound you'd like to play when the
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notification is shown. Any of the default sounds (under System Preferences >
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Sound) can be used, in addition to custom sound files. Be sure that the sound
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file is copied under the app bundle (e.g., `YourApp.app/Contents/Resources`),
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or one of the following locations:
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* `~/Library/Sounds`
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* `/Library/Sounds`
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* `/Network/Library/Sounds`
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* `/System/Library/Sounds`
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See the [`NSSound`](https://developer.apple.com/documentation/appkit/nssound) docs for more information.
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[event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter
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