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/api-utils/lib/windows/observer.js | |
parent | dbf076b39ca655500f2c0546b0ea57ceffca33b3 (diff) |
added addon-sdk-1.7, without any changes
Diffstat (limited to 'tools/addon-sdk-1.7/packages/api-utils/lib/windows/observer.js')
-rw-r--r-- | tools/addon-sdk-1.7/packages/api-utils/lib/windows/observer.js | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/tools/addon-sdk-1.7/packages/api-utils/lib/windows/observer.js b/tools/addon-sdk-1.7/packages/api-utils/lib/windows/observer.js new file mode 100644 index 0000000..45191b7 --- /dev/null +++ b/tools/addon-sdk-1.7/packages/api-utils/lib/windows/observer.js @@ -0,0 +1,53 @@ +/* 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 { EventEmitterTrait: EventEmitter } = require("../events"); +const { WindowTracker, windowIterator } = require("../window-utils"); +const { DOMEventAssembler } = require("../events/assembler"); +const { Trait } = require("../light-traits"); + +// Event emitter objects used to register listeners and emit events on them +// when they occur. +const observer = Trait.compose(DOMEventAssembler, EventEmitter).create({ + /** + * Method is implemented by `EventEmitter` and is used just for emitting + * events on registered listeners. + */ + _emit: Trait.required, + /** + * Events that are supported and emitted by the module. + */ + supportedEventsTypes: [ "activate", "deactivate" ], + /** + * Function handles all the supported events on all the windows that are + * observed. Method is used to proxy events to the listeners registered on + * this event emitter. + * @param {Event} event + * Keyboard event being emitted. + */ + handleEvent: function handleEvent(event) { + this._emit(event.type, event.target, event); + } +}); + +// Using `WindowTracker` to track window events. +WindowTracker({ + onTrack: function onTrack(chromeWindow) { + observer._emit("open", chromeWindow); + observer.observe(chromeWindow); + }, + onUntrack: function onUntrack(chromeWindow) { + observer._emit("close", chromeWindow); + observer.ignore(chromeWindow); + } +}); + +// Making observer aware of already opened windows. +for each (let window in windowIterator()) + observer.observe(window); + +exports.observer = observer; |