84 lines
2.6 KiB
JavaScript
84 lines
2.6 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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'use strict';
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const { Class } = require('../core/heritage');
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const { BrowserWindow } = require('../window/browser');
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const { WindowTracker } = require('../deprecated/window-utils');
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const { isBrowser, getMostRecentBrowserWindow } = require('../window/utils');
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const { windowNS } = require('../window/namespace');
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const { on, off, once, emit } = require('../event/core');
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const { method } = require('../lang/functional');
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const { EventTarget } = require('../event/target');
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const { List, addListItem } = require('../util/list');
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const ERR_FENNEC_MSG = 'This method is not yet supported by Fennec, consider using require("sdk/tabs") instead';
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// NOTE: On Fennec there is only one window.
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let BrowserWindows = Class({
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implements: [ List ],
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extends: EventTarget,
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initialize: function() {
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List.prototype.initialize.apply(this);
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},
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get activeWindow() {
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let window = getMostRecentBrowserWindow();
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return window ? getBrowserWindow({window: window}) : null;
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},
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open: function open(options) {
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throw new Error(ERR_FENNEC_MSG);
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return null;
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}
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});
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const browserWindows = exports.browserWindows = BrowserWindows();
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/**
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* Gets a `BrowserWindow` for the given `chromeWindow` if previously
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* registered, `null` otherwise.
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*/
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function getRegisteredWindow(chromeWindow) {
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for each (let window in browserWindows) {
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if (chromeWindow === windowNS(window).window)
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return window;
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}
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return null;
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}
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/**
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* Gets a `BrowserWindow` for the provided window options obj
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* @params {Object} options
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* Options that are passed to the the `BrowserWindowTrait`
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* @returns {BrowserWindow}
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*/
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function getBrowserWindow(options) {
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let window = null;
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// if we have a BrowserWindow already then use it
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if ('window' in options)
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window = getRegisteredWindow(options.window);
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if (window)
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return window;
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// we don't have a BrowserWindow yet, so create one
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var window = BrowserWindow(options);
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addListItem(browserWindows, window);
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return window;
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}
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WindowTracker({
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onTrack: function onTrack(chromeWindow) {
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if (!isBrowser(chromeWindow)) return;
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let window = getBrowserWindow({ window: chromeWindow });
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emit(browserWindows, 'open', window);
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},
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onUntrack: function onUntrack(chromeWindow) {
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if (!isBrowser(chromeWindow)) return;
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let window = getBrowserWindow({ window: chromeWindow });
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emit(browserWindows, 'close', window);
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}
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});
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