diff options
author | Rogan Creswick <creswick@gmail.com> | 2013-01-02 14:56:40 -0800 |
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committer | Rogan Creswick <creswick@gmail.com> | 2013-01-02 14:56:40 -0800 |
commit | 75139375b76cb277546da2429d8e983ca6758f61 (patch) | |
tree | 5b8d180f5f6dc9809eeec1612726a1de36cb7365 /tools/addon-sdk-1.7/packages/addon-kit/lib/hotkeys.js | |
parent | dbf076b39ca655500f2c0546b0ea57ceffca33b3 (diff) |
added addon-sdk-1.7, without any changes
Diffstat (limited to 'tools/addon-sdk-1.7/packages/addon-kit/lib/hotkeys.js')
-rw-r--r-- | tools/addon-sdk-1.7/packages/addon-kit/lib/hotkeys.js | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/tools/addon-sdk-1.7/packages/addon-kit/lib/hotkeys.js b/tools/addon-sdk-1.7/packages/addon-kit/lib/hotkeys.js new file mode 100644 index 0000000..f864f1f --- /dev/null +++ b/tools/addon-sdk-1.7/packages/addon-kit/lib/hotkeys.js @@ -0,0 +1,37 @@ +/* vim:set ts=2 sw=2 sts=2 et: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +"use strict"; + +const INVALID_HOTKEY = "Hotkey must have at least one modifier."; + +const { toJSON: jsonify, toString: stringify, + isFunctionKey } = require("api-utils/keyboard/utils"); +const { register, unregister } = require("api-utils/keyboard/hotkeys"); + +const Hotkey = exports.Hotkey = function Hotkey(options) { + if (!(this instanceof Hotkey)) + return new Hotkey(options); + + // Parsing key combination string. + let hotkey = jsonify(options.combo); + if (!isFunctionKey(hotkey.key) && !hotkey.modifiers.length) { + throw new TypeError(INVALID_HOTKEY); + } + + this.onPress = options.onPress; + this.toString = stringify.bind(null, hotkey); + // Registering listener on keyboard combination enclosed by this hotkey. + // Please note that `this.toString()` is a normalized version of + // `options.combination` where order of modifiers is sorted and `accel` is + // replaced with platform specific key. + register(this.toString(), this.onPress); + // We freeze instance before returning it in order to make it's properties + // read-only. + return Object.freeze(this); +}; +Hotkey.prototype.destroy = function destroy() { + unregister(this.toString(), this.onPress); +}; |