michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 'use strict';
michael@0: 
michael@0: const { Class } = require('../core/heritage');
michael@0: const { Tab } = require('../tabs/tab');
michael@0: const { browserWindows } = require('./fennec');
michael@0: const { windowNS } = require('../window/namespace');
michael@0: const { tabsNS, tabNS } = require('../tabs/namespace');
michael@0: const { openTab, getTabs, getSelectedTab, getTabForBrowser: getRawTabForBrowser,
michael@0:         getTabContentWindow } = require('../tabs/utils');
michael@0: const { Options } = require('../tabs/common');
michael@0: const { getTabForBrowser, getTabForRawTab } = require('../tabs/helpers');
michael@0: const { on, once, off, emit } = require('../event/core');
michael@0: const { method } = require('../lang/functional');
michael@0: const { EVENTS } = require('../tabs/events');
michael@0: const { EventTarget } = require('../event/target');
michael@0: const { when: unload } = require('../system/unload');
michael@0: const { windowIterator } = require('../deprecated/window-utils');
michael@0: const { List, addListItem, removeListItem } = require('../util/list');
michael@0: const { isPrivateBrowsingSupported } = require('../self');
michael@0: const { isTabPBSupported, ignoreWindow } = require('../private-browsing/utils');
michael@0: 
michael@0: const mainWindow = windowNS(browserWindows.activeWindow).window;
michael@0: 
michael@0: const ERR_FENNEC_MSG = 'This method is not yet supported by Fennec';
michael@0: 
michael@0: const supportPrivateTabs = isPrivateBrowsingSupported && isTabPBSupported;
michael@0: 
michael@0: const Tabs = Class({
michael@0:   implements: [ List ],
michael@0:   extends: EventTarget,
michael@0:   initialize: function initialize(options) {
michael@0:     let tabsInternals = tabsNS(this);
michael@0:     let window = tabsNS(this).window = options.window || mainWindow;
michael@0: 
michael@0:     EventTarget.prototype.initialize.call(this, options);
michael@0:     List.prototype.initialize.apply(this, getTabs(window).map(Tab));
michael@0: 
michael@0:     // TabOpen event
michael@0:     window.BrowserApp.deck.addEventListener(EVENTS.open.dom, onTabOpen, false);
michael@0: 
michael@0:     // TabSelect
michael@0:     window.BrowserApp.deck.addEventListener(EVENTS.activate.dom, onTabSelect, false);
michael@0:   },
michael@0:   get activeTab() {
michael@0:     return getTabForRawTab(getSelectedTab(tabsNS(this).window));
michael@0:   },
michael@0:   open: function(options) {
michael@0:     options = Options(options);
michael@0:     let activeWin = browserWindows.activeWindow;
michael@0: 
michael@0:     if (options.isPinned) {
michael@0:       console.error(ERR_FENNEC_MSG); // TODO
michael@0:     }
michael@0: 
michael@0:     let rawTab = openTab(windowNS(activeWin).window, options.url, {
michael@0:       inBackground: options.inBackground,
michael@0:       isPrivate: supportPrivateTabs && options.isPrivate
michael@0:     });
michael@0: 
michael@0:     // by now the tab has been created
michael@0:     let tab = getTabForRawTab(rawTab);
michael@0: 
michael@0:     if (options.onClose)
michael@0:       tab.on('close', options.onClose);
michael@0: 
michael@0:     if (options.onOpen) {
michael@0:       // NOTE: on Fennec this will be true
michael@0:       if (tabNS(tab).opened)
michael@0:         options.onOpen(tab);
michael@0: 
michael@0:       tab.on('open', options.onOpen);
michael@0:     }
michael@0: 
michael@0:     if (options.onReady)
michael@0:       tab.on('ready', options.onReady);
michael@0: 
michael@0:     if (options.onLoad)
michael@0:       tab.on('load', options.onLoad);
michael@0: 
michael@0:     if (options.onPageShow)
michael@0:       tab.on('pageshow', options.onPageShow);
michael@0: 
michael@0:     if (options.onActivate)
michael@0:       tab.on('activate', options.onActivate);
michael@0: 
michael@0:     return tab;
michael@0:   }
michael@0: });
michael@0: let gTabs = exports.tabs = Tabs(mainWindow);
michael@0: 
michael@0: function tabsUnloader(event, window) {
michael@0:   window = window || (event && event.target);
michael@0:   if (!(window && window.BrowserApp))
michael@0:     return;
michael@0:   window.BrowserApp.deck.removeEventListener(EVENTS.open.dom, onTabOpen, false);
michael@0:   window.BrowserApp.deck.removeEventListener(EVENTS.activate.dom, onTabSelect, false);
michael@0: }
michael@0: 
michael@0: // unload handler
michael@0: unload(function() {
michael@0:   for (let window in windowIterator()) {
michael@0:     tabsUnloader(null, window);
michael@0:   }
michael@0: });
michael@0: 
michael@0: function addTab(tab) {
michael@0:   addListItem(gTabs, tab);
michael@0:   return tab;
michael@0: }
michael@0: 
michael@0: function removeTab(tab) {
michael@0:   removeListItem(gTabs, tab);
michael@0:   return tab;
michael@0: }
michael@0: 
michael@0: // TabOpen
michael@0: function onTabOpen(event) {
michael@0:   let browser = event.target;
michael@0: 
michael@0:   // Eventually ignore private tabs
michael@0:   if (ignoreWindow(browser.contentWindow))
michael@0:     return;
michael@0: 
michael@0:   let tab = getTabForBrowser(browser);
michael@0:   if (tab === null) {
michael@0:     let rawTab = getRawTabForBrowser(browser);
michael@0: 
michael@0:     // create a Tab instance for this new tab
michael@0:     tab = addTab(Tab(rawTab));
michael@0:   }
michael@0: 
michael@0:   tabNS(tab).opened = true;
michael@0: 
michael@0:   tab.on('ready', function() emit(gTabs, 'ready', tab));
michael@0:   tab.once('close', onTabClose);
michael@0: 
michael@0:   tab.on('pageshow', function(_tab, persisted)
michael@0:     emit(gTabs, 'pageshow', tab, persisted));
michael@0: 
michael@0:   emit(tab, 'open', tab);
michael@0:   emit(gTabs, 'open', tab);
michael@0: }
michael@0: 
michael@0: // TabSelect
michael@0: function onTabSelect(event) {
michael@0:   let browser = event.target;
michael@0: 
michael@0:   // Eventually ignore private tabs
michael@0:   if (ignoreWindow(browser.contentWindow))
michael@0:     return;
michael@0: 
michael@0:   // Set value whenever new tab becomes active.
michael@0:   let tab = getTabForBrowser(browser);
michael@0:   emit(tab, 'activate', tab);
michael@0:   emit(gTabs, 'activate', tab);
michael@0: 
michael@0:   for each (let t in gTabs) {
michael@0:     if (t === tab) continue;
michael@0:     emit(t, 'deactivate', t);
michael@0:     emit(gTabs, 'deactivate', t);
michael@0:   }
michael@0: }
michael@0: 
michael@0: // TabClose
michael@0: function onTabClose(tab) {
michael@0:   removeTab(tab);
michael@0:   emit(gTabs, EVENTS.close.name, tab);
michael@0: }