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/* vim:set ts=2 sw=2 sts=2 et: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Jetpack.
*
* The Initial Developer of the Original Code is
* the Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Irakli Gozalishvili <gozala@mozilla.com> (Original Author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
"use strict";
const { Trait } = require("../light-traits");
const { EventEmitterTrait: EventEmitter } = require("../events");
const { DOMEventAssembler } = require("../events/assembler");
const { browserWindowIterator, isBrowser } = require('../window-utils');
const { observer: windowObserver } = require("../windows/observer");
// 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: [ "keydown", "keyup", "keypress" ],
/**
* 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, event.target.ownerDocument.defaultView);
}
});
// Adding each opened window to a list of observed windows.
windowObserver.on("open", function onOpen(window) {
if (isBrowser(window))
observer.observe(window);
});
// Removing each closed window form the list of observed windows.
windowObserver.on("close", function onClose(window) {
if (isBrowser(window))
observer.ignore(window);
});
// Making observer aware of already opened windows.
for each (let window in browserWindowIterator())
observer.observe(window);
exports.observer = observer;
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