addon-sdk/source/lib/sdk/tabs/observer.js@129ffea94266 (annotated)
addon-sdk/source/lib/sdk/tabs/observer.js
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | 'use strict'; |
| michael@0 | 5 | |
| michael@0 | 6 | module.metadata = { |
| michael@0 | 7 | "stability": "unstable" |
| michael@0 | 8 | }; |
| michael@0 | 9 | |
| michael@0 | 10 | const { EventEmitterTrait: EventEmitter } = require("../deprecated/events"); |
| michael@0 | 11 | const { DOMEventAssembler } = require("../deprecated/events/assembler"); |
| michael@0 | 12 | const { Trait } = require("../deprecated/light-traits"); |
| michael@0 | 13 | const { getActiveTab, getTabs, getTabContainer } = require("./utils"); |
| michael@0 | 14 | const { browserWindowIterator } = require("../deprecated/window-utils"); |
| michael@0 | 15 | const { isBrowser } = require('../window/utils'); |
| michael@0 | 16 | const { observer: windowObserver } = require("../windows/observer"); |
| michael@0 | 17 | |
| michael@0 | 18 | const EVENTS = { |
| michael@0 | 19 | "TabOpen": "open", |
| michael@0 | 20 | "TabClose": "close", |
| michael@0 | 21 | "TabSelect": "select", |
| michael@0 | 22 | "TabMove": "move", |
| michael@0 | 23 | "TabPinned": "pinned", |
| michael@0 | 24 | "TabUnpinned": "unpinned" |
| michael@0 | 25 | }; |
| michael@0 | 26 | |
| michael@0 | 27 | |
| michael@0 | 28 | // Event emitter objects used to register listeners and emit events on them |
| michael@0 | 29 | // when they occur. |
| michael@0 | 30 | const observer = Trait.compose(DOMEventAssembler, EventEmitter).create({ |
| michael@0 | 31 | /** |
| michael@0 | 32 | * Method is implemented by `EventEmitter` and is used just for emitting |
| michael@0 | 33 | * events on registered listeners. |
| michael@0 | 34 | */ |
| michael@0 | 35 | _emit: Trait.required, |
| michael@0 | 36 | /** |
| michael@0 | 37 | * Events that are supported and emitted by the module. |
| michael@0 | 38 | */ |
| michael@0 | 39 | supportedEventsTypes: Object.keys(EVENTS), |
| michael@0 | 40 | /** |
| michael@0 | 41 | * Function handles all the supported events on all the windows that are |
| michael@0 | 42 | * observed. Method is used to proxy events to the listeners registered on |
| michael@0 | 43 | * this event emitter. |
| michael@0 | 44 | * @param {Event} event |
| michael@0 | 45 | * Keyboard event being emitted. |
| michael@0 | 46 | */ |
| michael@0 | 47 | handleEvent: function handleEvent(event) { |
| michael@0 | 48 | this._emit(EVENTS[event.type], event.target, event); |
| michael@0 | 49 | } |
| michael@0 | 50 | }); |
| michael@0 | 51 | |
| michael@0 | 52 | // Currently Gecko does not dispatch any event on the previously selected |
| michael@0 | 53 | // tab before / after "TabSelect" is dispatched. In order to work around this |
| michael@0 | 54 | // limitation we keep track of selected tab and emit "deactivate" event with |
| michael@0 | 55 | // that before emitting "activate" on selected tab. |
| michael@0 | 56 | var selectedTab = null; |
| michael@0 | 57 | function onTabSelect(tab) { |
| michael@0 | 58 | if (selectedTab !== tab) { |
| michael@0 | 59 | if (selectedTab) observer._emit('deactivate', selectedTab); |
| michael@0 | 60 | if (tab) observer._emit('activate', selectedTab = tab); |
| michael@0 | 61 | } |
| michael@0 | 62 | }; |
| michael@0 | 63 | observer.on('select', onTabSelect); |
| michael@0 | 64 | |
| michael@0 | 65 | // We also observe opening / closing windows in order to add / remove it's |
| michael@0 | 66 | // containers to the observed list. |
| michael@0 | 67 | function onWindowOpen(chromeWindow) { |
| michael@0 | 68 | if (!isBrowser(chromeWindow)) return; // Ignore if it's not a browser window. |
| michael@0 | 69 | observer.observe(getTabContainer(chromeWindow)); |
| michael@0 | 70 | } |
| michael@0 | 71 | windowObserver.on("open", onWindowOpen); |
| michael@0 | 72 | |
| michael@0 | 73 | function onWindowClose(chromeWindow) { |
| michael@0 | 74 | if (!isBrowser(chromeWindow)) return; // Ignore if it's not a browser window. |
| michael@0 | 75 | // Bug 751546: Emit `deactivate` event on window close immediatly |
| michael@0 | 76 | // Otherwise we are going to face "dead object" exception on `select` event |
| michael@0 | 77 | if (getActiveTab(chromeWindow) == selectedTab) { |
| michael@0 | 78 | observer._emit("deactivate", selectedTab); |
| michael@0 | 79 | selectedTab = null; |
| michael@0 | 80 | } |
| michael@0 | 81 | observer.ignore(getTabContainer(chromeWindow)); |
| michael@0 | 82 | } |
| michael@0 | 83 | windowObserver.on("close", onWindowClose); |
| michael@0 | 84 | |
| michael@0 | 85 | |
| michael@0 | 86 | // Currently gecko does not dispatches "TabSelect" events when different |
| michael@0 | 87 | // window gets activated. To work around this limitation we emulate "select" |
| michael@0 | 88 | // event for this case. |
| michael@0 | 89 | windowObserver.on("activate", function onWindowActivate(chromeWindow) { |
| michael@0 | 90 | if (!isBrowser(chromeWindow)) return; // Ignore if it's not a browser window. |
| michael@0 | 91 | observer._emit("select", getActiveTab(chromeWindow)); |
| michael@0 | 92 | }); |
| michael@0 | 93 | |
| michael@0 | 94 | // We should synchronize state, since probably we already have at least one |
| michael@0 | 95 | // window open. |
| michael@0 | 96 | for each (let window in browserWindowIterator()) onWindowOpen(window); |
| michael@0 | 97 | |
| michael@0 | 98 | exports.observer = observer; |
