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/* 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 { Class } = require('../core/heritage');
const { Tab } = require('../tabs/tab');
const { browserWindows } = require('./fennec');
const { windowNS } = require('../window/namespace');
const { tabsNS, tabNS } = require('../tabs/namespace');
const { openTab, getTabs, getSelectedTab } = require('../tabs/utils');
const { Options } = require('../tabs/common');
const { on, once, off, emit } = require('../event/core');
const { method } = require('../lang/functional');
const { EVENTS } = require('../tabs/events');
const { EventTarget } = require('../event/target');
const { when: unload } = require('../system/unload');
const { windowIterator } = require('../deprecated/window-utils');
const { List, addListItem, removeListItem } = require('../util/list');
const mainWindow = windowNS(browserWindows.activeWindow).window;
const ERR_FENNEC_MSG = 'This method is not yet supported by Fennec';
const Tabs = Class({
implements: [ List ],
extends: EventTarget,
initialize: function initialize(options) {
let tabsInternals = tabsNS(this);
let window = tabsNS(this).window = options.window || mainWindow;
EventTarget.prototype.initialize.call(this, options);
List.prototype.initialize.apply(this, getTabs(window).map(Tab));
// TabOpen event
window.BrowserApp.deck.addEventListener(EVENTS.open.dom, onTabOpen, false);
// TabSelect
window.BrowserApp.deck.addEventListener(EVENTS.activate.dom, onTabSelect, false);
// TabClose
window.BrowserApp.deck.addEventListener(EVENTS.close.dom, onTabClose, false);
},
get activeTab() {
return getTabForRawTab(getSelectedTab(tabsNS(this).window));
},
open: function(options) {
options = Options(options);
let activeWin = browserWindows.activeWindow;
if (options.isPinned) {
console.error(ERR_FENNEC_MSG); // TODO
}
let rawTab = openTab(windowNS(activeWin).window, options.url, {
inBackground: options.inBackground
});
// by now the tab has been created
let tab = getTabForRawTab(rawTab);
if (options.onClose)
tab.on('close', options.onClose);
if (options.onOpen) {
// NOTE: on Fennec this will be true
if (tabNS(tab).opened)
options.onOpen(tab);
tab.on('open', options.onOpen);
}
if (options.onReady)
tab.on('ready', options.onReady);
if (options.onActivate)
tab.on('activate', options.onActivate);
return tab;
}
});
let gTabs = exports.tabs = Tabs(mainWindow);
function tabsUnloader(event, window) {
window = window || (event && event.target);
if (!(window && window.BrowserApp))
return;
window.BrowserApp.deck.removeEventListener(EVENTS.open.dom, onTabOpen, false);
window.BrowserApp.deck.removeEventListener(EVENTS.activate.dom, onTabSelect, false);
window.BrowserApp.deck.removeEventListener(EVENTS.close.dom, onTabClose, false);
}
// unload handler
unload(function() {
for (let window in windowIterator()) {
tabsUnloader(null, window);
}
});
function addTab(tab) {
addListItem(gTabs, tab);
return tab;
}
function removeTab(tab) {
removeListItem(gTabs, tab);
return tab;
}
function getTabForBrowser(browser) {
return getTabForRawTab(getRawTabForBrowser(browser));
}
function getRawTabForBrowser(browser) {
let tabs = mainWindow.BrowserApp.tabs;
for (let i = 0; i < tabs.length; i++) {
let tab = tabs[i];
if (tab.browser === browser)
return tab
}
return null;
}
// TabOpen
function onTabOpen(event) {
let browser = event.target;
let tab = getTabForBrowser(browser);
if (tab === null) {
let rawTab = getRawTabForBrowser(browser);
// create a Tab instance for this new tab
tab = addTab(Tab(rawTab));
}
tabNS(tab).opened = true;
// TabReady
let onReady = tabNS(tab).onReady = onTabReady.bind(tab);
browser.addEventListener(EVENTS.ready.dom, onReady, false);
emit(tab, 'open', tab);
emit(gTabs, 'open', tab);
};
function onTabReady() {
emit(this, 'ready', this);
emit(gTabs, 'ready', this);
}
// TabSelect
function onTabSelect(event) {
// Set value whenever new tab becomes active.
let tab = getTabForBrowser(event.target);
emit(tab, 'activate', tab);
emit(gTabs, 'activate', tab);
for each (let t in gTabs) {
if (t === tab) continue;
emit(t, 'deactivate', t);
emit(gTabs, 'deactivate', t);
}
};
// TabClose
function onTabClose(event) {
let tab = getTabForBrowser(event.target);
removeTab(tab);
emit(gTabs, 'close', tab);
emit(tab, 'close', tab);
};
function getTabForRawTab(rawTab) {
for each (let tab in gTabs) {
if (tabNS(tab).tab === rawTab)
return tab;
}
return null;
}
unload(function() {
for each (let tab in gTabs) {
let tabInternals = tabNS(tab);
tabInternals.tab.browser.removeEventListener(EVENTS.ready.dom, tabInternals.onReady, false);
tabInternals.onReady = null;
tabInternals.tab = null;
tabInternals.window = null;
}
});
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