electron/docs/api/shortcut.md
2014-07-31 09:12:43 +08:00

1.8 KiB

shortcut

A Shortcut presents a global keyboard shortcut in operating system. If a Shortcut is registered in app, the app will receive an active event when user presses the shortcut. Note that it is global, even your app does not get focused, it still works.

var Shortcut = require('shortcut');

shortcut = new Shortcut('ctrl+a');
shortcut.setKey('ctrl+s');
shortcut.on('active', function() { console.log('ctrl+s pressed'); });
shortcut.on('failed', function() { console.log("failed"); });
shortcut.register();

Class: Shortcut

Shortcut is an EventEmitter.

new Shortcut(keycode)

  • keycode String

Creates a new Shortcut associated with the keycode.

keycode is a string to specify shortcut key, such as "ctrl+shift+a".

A keycode consists of modifier and key two parts:

Modifiers: control(ctrl), command(cmd), alt, shift, commandorcontrol(cmdorctrl).

Supported keys: 0-9, a-z, up, down, left, right, home, end, pagedown, pageup, insert, delete, esc, space, backspace, tab, f1-f12, volumeup, volumedown, media keys(medianextrack, mediaprevioustrack, mediastop, mediaplaypause).

Event: active

Emitted when a registered shortcut is pressed by user.

Event: failed

Emitted when the keycode of shortcut is invalid.

Shortcut.setKey(keycode)

  • keycode String

Set new keycode to a Shortcut. Note that this operation will override previous keycode and will unregister the Shortcut, developer should register the Shortcut again after setKey.

Shortcut.register

Register a Shortcut to operating system.

Shortcut.unregister

Unregister a Shortcut to operating system.

Shortcut.isRegistered

Return whether the shortcut is registered.