diff options
Diffstat (limited to 'application/basilisk/components/newtab')
12 files changed, 1450 insertions, 0 deletions
diff --git a/application/basilisk/components/newtab/NewTabComponents.manifest b/application/basilisk/components/newtab/NewTabComponents.manifest new file mode 100644 index 000000000..42db65acd --- /dev/null +++ b/application/basilisk/components/newtab/NewTabComponents.manifest @@ -0,0 +1,2 @@ +component {dfcd2adc-7867-4d3a-ba70-17501f208142} aboutNewTabService.js +contract @mozilla.org/browser/aboutnewtab-service;1 {dfcd2adc-7867-4d3a-ba70-17501f208142} diff --git a/application/basilisk/components/newtab/NewTabMessages.jsm b/application/basilisk/components/newtab/NewTabMessages.jsm new file mode 100644 index 000000000..0816ed65a --- /dev/null +++ b/application/basilisk/components/newtab/NewTabMessages.jsm @@ -0,0 +1,242 @@ +/* global + NewTabWebChannel, + NewTabPrefsProvider, + PlacesProvider, + PreviewProvider, + NewTabSearchProvider, + Preferences, + XPCOMUtils, + Task +*/ + +/* exported NewTabMessages */ + +"use strict"; + +const {utils: Cu} = Components; +Cu.import("resource://gre/modules/Preferences.jsm"); +Cu.import("resource://gre/modules/XPCOMUtils.jsm"); +Cu.import("resource://gre/modules/Task.jsm"); + +XPCOMUtils.defineLazyModuleGetter(this, "PlacesProvider", + "resource:///modules/PlacesProvider.jsm"); +XPCOMUtils.defineLazyModuleGetter(this, "PreviewProvider", + "resource:///modules/PreviewProvider.jsm"); +XPCOMUtils.defineLazyModuleGetter(this, "NewTabPrefsProvider", + "resource:///modules/NewTabPrefsProvider.jsm"); +XPCOMUtils.defineLazyModuleGetter(this, "NewTabSearchProvider", + "resource:///modules/NewTabSearchProvider.jsm"); +XPCOMUtils.defineLazyModuleGetter(this, "NewTabWebChannel", + "resource:///modules/NewTabWebChannel.jsm"); + +this.EXPORTED_SYMBOLS = ["NewTabMessages"]; + +const PREF_ENABLED = "browser.newtabpage.remote"; +const CURRENT_ENGINE = "browser-search-engine-modified"; + +// Action names are from the content's perspective. in from chrome == out from content +// Maybe replace the ACTION objects by a bi-directional Map a bit later? +const ACTIONS = { + inboundActions: [ + "REQUEST_PREFS", + "REQUEST_THUMB", + "REQUEST_FRECENT", + "REQUEST_UISTRINGS", + "REQUEST_SEARCH_SUGGESTIONS", + "REQUEST_MANAGE_ENGINES", + "REQUEST_SEARCH_STATE", + "REQUEST_REMOVE_FORM_HISTORY", + "REQUEST_PERFORM_SEARCH", + "REQUEST_CYCLE_ENGINE", + ], + prefs: { + inPrefs: "REQUEST_PREFS", + outPrefs: "RECEIVE_PREFS", + }, + preview: { + inThumb: "REQUEST_THUMB", + outThumb: "RECEIVE_THUMB", + }, + links: { + inFrecent: "REQUEST_FRECENT", + outFrecent: "RECEIVE_FRECENT", + outPlacesChange: "RECEIVE_PLACES_CHANGE", + }, + search: { + inSearch: { + UIStrings: "REQUEST_UISTRINGS", + suggestions: "REQUEST_SEARCH_SUGGESTIONS", + manageEngines: "REQUEST_MANAGE_ENGINES", + state: "REQUEST_SEARCH_STATE", + removeFormHistory: "REQUEST_REMOVE_FORM_HISTORY", + performSearch: "REQUEST_PERFORM_SEARCH", + cycleEngine: "REQUEST_CYCLE_ENGINE" + }, + outSearch: { + UIStrings: "RECEIVE_UISTRINGS", + suggestions: "RECEIVE_SEARCH_SUGGESTIONS", + state: "RECEIVE_SEARCH_STATE", + currentEngine: "RECEIVE_CURRENT_ENGINE" + }, + } +}; + +let NewTabMessages = { + + _prefs: {}, + + /** NEWTAB EVENT HANDLERS **/ + + handleContentRequest(actionName, {data, target}) { + switch (actionName) { + case ACTIONS.prefs.inPrefs: + // Return to the originator all newtabpage prefs + let results = NewTabPrefsProvider.prefs.newtabPagePrefs; + NewTabWebChannel.send(ACTIONS.prefs.outPrefs, results, target); + break; + case ACTIONS.preview.inThumb: + // Return to the originator a preview URL + PreviewProvider.getThumbnail(data).then(imgData => { + NewTabWebChannel.send(ACTIONS.preview.outThumb, {url: data, imgData}, target); + }); + break; + case ACTIONS.links.inFrecent: + // Return to the originator the top frecent links + PlacesProvider.links.getLinks().then(links => { + NewTabWebChannel.send(ACTIONS.links.outFrecent, links, target); + }); + break; + case ACTIONS.search.inSearch.UIStrings: + // Return to the originator all search strings to display + let strings = NewTabSearchProvider.search.searchSuggestionUIStrings; + NewTabWebChannel.send(ACTIONS.search.outSearch.UIStrings, strings, target); + break; + case ACTIONS.search.inSearch.suggestions: + // Return to the originator all search suggestions + Task.spawn(function*() { + try { + let {engineName, searchString} = data; + let suggestions = yield NewTabSearchProvider.search.asyncGetSuggestions(engineName, searchString, target); + NewTabWebChannel.send(ACTIONS.search.outSearch.suggestions, suggestions, target); + } catch (e) { + Cu.reportError(e); + } + }); + break; + case ACTIONS.search.inSearch.manageEngines: + // Open about:preferences to manage search state + NewTabSearchProvider.search.manageEngines(target.browser); + break; + case ACTIONS.search.inSearch.state: + // Return the state of the search component (i.e current engine and visible engine details) + Task.spawn(function*() { + try { + let state = yield NewTabSearchProvider.search.asyncGetState(); + NewTabWebChannel.broadcast(ACTIONS.search.outSearch.state, state); + } catch (e) { + Cu.reportError(e); + } + }); + break; + case ACTIONS.search.inSearch.removeFormHistory: + // Remove a form history entry from the search component + let suggestion = data; + NewTabSearchProvider.search.removeFormHistory(target, suggestion); + break; + case ACTIONS.search.inSearch.performSearch: + // Perform a search + NewTabSearchProvider.search.asyncPerformSearch(target, data).catch(Cu.reportError); + break; + case ACTIONS.search.inSearch.cycleEngine: + // Set the new current engine + NewTabSearchProvider.search.asyncCycleEngine(data).catch(Cu.reportError); + break; + } + }, + + /* + * Broadcast places change to all open newtab pages + */ + handlePlacesChange(type, data) { + NewTabWebChannel.broadcast(ACTIONS.links.outPlacesChange, {type, data}); + }, + + /* + * Broadcast current engine has changed to all open newtab pages + */ + _handleCurrentEngineChange(name, value) { // jshint unused: false + let engine = value; + NewTabWebChannel.broadcast(ACTIONS.search.outSearch.currentEngine, engine); + }, + + /* + * Broadcast preference changes to all open newtab pages + */ + handlePrefChange(actionName, value) { + let prefChange = {}; + prefChange[actionName] = value; + NewTabWebChannel.broadcast(ACTIONS.prefs.outPrefs, prefChange); + }, + + _handleEnabledChange(prefName, value) { + if (prefName === PREF_ENABLED) { + if (this._prefs.enabled && !value) { + this.uninit(); + } else if (!this._prefs.enabled && value) { + this.init(); + } + } + }, + + init() { + this.handleContentRequest = this.handleContentRequest.bind(this); + this._handleEnabledChange = this._handleEnabledChange.bind(this); + this._handleCurrentEngineChange = this._handleCurrentEngineChange.bind(this); + + PlacesProvider.links.init(); + NewTabPrefsProvider.prefs.init(); + NewTabSearchProvider.search.init(); + NewTabWebChannel.init(); + + this._prefs.enabled = Preferences.get(PREF_ENABLED, false); + + if (this._prefs.enabled) { + for (let action of ACTIONS.inboundActions) { + NewTabWebChannel.on(action, this.handleContentRequest); + } + + NewTabPrefsProvider.prefs.on(PREF_ENABLED, this._handleEnabledChange); + NewTabSearchProvider.search.on(CURRENT_ENGINE, this._handleCurrentEngineChange); + + for (let pref of NewTabPrefsProvider.newtabPagePrefSet) { + NewTabPrefsProvider.prefs.on(pref, this.handlePrefChange); + } + + PlacesProvider.links.on("deleteURI", this.handlePlacesChange); + PlacesProvider.links.on("clearHistory", this.handlePlacesChange); + PlacesProvider.links.on("linkChanged", this.handlePlacesChange); + PlacesProvider.links.on("manyLinksChanged", this.handlePlacesChange); + } + }, + + uninit() { + this._prefs.enabled = Preferences.get(PREF_ENABLED, false); + + if (this._prefs.enabled) { + NewTabPrefsProvider.prefs.off(PREF_ENABLED, this._handleEnabledChange); + NewTabSearchProvider.search.off(CURRENT_ENGINE, this._handleCurrentEngineChange); + + for (let action of ACTIONS.inboundActions) { + NewTabWebChannel.off(action, this.handleContentRequest); + } + + for (let pref of NewTabPrefsProvider.newtabPagePrefSet) { + NewTabPrefsProvider.prefs.off(pref, this.handlePrefChange); + } + } + + NewTabPrefsProvider.prefs.uninit(); + NewTabSearchProvider.search.uninit(); + NewTabWebChannel.uninit(); + } +}; diff --git a/application/basilisk/components/newtab/NewTabPrefsProvider.jsm b/application/basilisk/components/newtab/NewTabPrefsProvider.jsm new file mode 100644 index 000000000..c1d8b4149 --- /dev/null +++ b/application/basilisk/components/newtab/NewTabPrefsProvider.jsm @@ -0,0 +1,114 @@ +/* global Services, Preferences, EventEmitter, XPCOMUtils */ +/* exported NewTabPrefsProvider */ + +"use strict"; + +this.EXPORTED_SYMBOLS = ["NewTabPrefsProvider"]; + +const {interfaces: Ci, utils: Cu} = Components; +Cu.import("resource://gre/modules/Services.jsm"); +Cu.import("resource://gre/modules/Preferences.jsm"); +Cu.import("resource://gre/modules/XPCOMUtils.jsm"); + +XPCOMUtils.defineLazyGetter(this, "EventEmitter", function() { + const {EventEmitter} = Cu.import("resource://devtools/shared/event-emitter.js", {}); + return EventEmitter; +}); + +// Supported prefs and data type +const gPrefsMap = new Map([ + ["browser.newtabpage.remote", "bool"], + ["browser.newtabpage.remote.mode", "str"], + ["browser.newtabpage.remote.version", "str"], + ["browser.newtabpage.enabled", "bool"], + ["browser.newtabpage.enhanced", "bool"], + ["browser.newtabpage.introShown", "bool"], + ["browser.newtabpage.updateIntroShown", "bool"], + ["browser.newtabpage.pinned", "str"], + ["browser.newtabpage.blocked", "str"], + ["intl.locale.matchOS", "bool"], + ["general.useragent.locale", "localized"], + ["browser.search.hiddenOneOffs", "str"], +]); + +// prefs that are important for the newtab page +const gNewtabPagePrefs = new Set([ + "browser.newtabpage.enabled", + "browser.newtabpage.enhanced", + "browser.newtabpage.pinned", + "browser.newtabpage.blocked", + "browser.newtabpage.introShown", + "browser.newtabpage.updateIntroShown", + "browser.search.hiddenOneOffs", +]); + +let PrefsProvider = function PrefsProvider() { + EventEmitter.decorate(this); +}; + +PrefsProvider.prototype = { + + observe(subject, topic, data) { // jshint ignore:line + if (topic === "nsPref:changed") { + if (gPrefsMap.has(data)) { + switch (gPrefsMap.get(data)) { + case "bool": + this.emit(data, Preferences.get(data, false)); + break; + case "str": + this.emit(data, Preferences.get(data, "")); + break; + case "localized": + try { + this.emit(data, Preferences.get(data, "", Ci.nsIPrefLocalizedString)); + } catch (e) { + this.emit(data, Preferences.get(data, "")); + } + break; + default: + this.emit(data); + break; + } + } + } else { + Cu.reportError(new Error("NewTabPrefsProvider observing unknown topic")); + } + }, + + /* + * Return the preferences that are important to the newtab page + */ + get newtabPagePrefs() { + let results = {}; + for (let pref of gNewtabPagePrefs) { + results[pref] = Preferences.get(pref, null); + } + return results; + }, + + get prefsMap() { + return gPrefsMap; + }, + + init() { + for (let pref of gPrefsMap.keys()) { + Services.prefs.addObserver(pref, this, false); + } + }, + + uninit() { + for (let pref of gPrefsMap.keys()) { + Services.prefs.removeObserver(pref, this, false); + } + } +}; + +/** + * Singleton that serves as the default new tab pref provider for the grid. + */ +const gPrefs = new PrefsProvider(); + +let NewTabPrefsProvider = { + prefs: gPrefs, + newtabPagePrefSet: gNewtabPagePrefs, +}; diff --git a/application/basilisk/components/newtab/NewTabRemoteResources.jsm b/application/basilisk/components/newtab/NewTabRemoteResources.jsm new file mode 100644 index 000000000..57351b15c --- /dev/null +++ b/application/basilisk/components/newtab/NewTabRemoteResources.jsm @@ -0,0 +1,15 @@ +/* exported NewTabRemoteResources */ + +"use strict"; + +this.EXPORTED_SYMBOLS = ["NewTabRemoteResources"]; + +const NewTabRemoteResources = { + MODE_CHANNEL_MAP: { + production: {origin: "https://content.cdn.mozilla.net"}, + staging: {origin: "https://s3_proxy_tiles.stage.mozaws.net"}, + test: {origin: "https://example.com"}, + test2: {origin: "http://mochi.test:8888"}, + dev: {origin: "http://localhost:8888"} + } +}; diff --git a/application/basilisk/components/newtab/NewTabSearchProvider.jsm b/application/basilisk/components/newtab/NewTabSearchProvider.jsm new file mode 100644 index 000000000..a50d8c706 --- /dev/null +++ b/application/basilisk/components/newtab/NewTabSearchProvider.jsm @@ -0,0 +1,103 @@ +/* global XPCOMUtils, ContentSearch, Task, Services, EventEmitter */ +/* exported NewTabSearchProvider */ + +"use strict"; + +this.EXPORTED_SYMBOLS = ["NewTabSearchProvider"]; + +const {utils: Cu, interfaces: Ci} = Components; +const CURRENT_ENGINE = "browser-search-engine-modified"; + +Cu.import("resource://gre/modules/XPCOMUtils.jsm"); +Cu.import("resource://gre/modules/Task.jsm"); +Cu.import("resource://gre/modules/Services.jsm"); + +XPCOMUtils.defineLazyModuleGetter(this, "ContentSearch", + "resource:///modules/ContentSearch.jsm"); + +XPCOMUtils.defineLazyGetter(this, "EventEmitter", function() { + const {EventEmitter} = Cu.import("resource://devtools/shared/event-emitter.js", {}); + return EventEmitter; +}); + +function SearchProvider() { + EventEmitter.decorate(this); +} + +SearchProvider.prototype = { + + observe(subject, topic, data) { // jshint unused:false + // all other topics are not relevant to content searches and can be + // ignored by NewTabSearchProvider + if (data === "engine-current" && topic === CURRENT_ENGINE) { + Task.spawn(function* () { + try { + let state = yield ContentSearch.currentStateObj(true); + let engine = state.currentEngine; + this.emit(CURRENT_ENGINE, engine); + } catch (e) { + Cu.reportError(e); + } + }.bind(this)); + } + }, + + init() { + try { + Services.obs.addObserver(this, CURRENT_ENGINE, true); + } catch (e) { + Cu.reportError(e); + } + }, + + QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver, + Ci.nsISupportsWeakReference + ]), + + uninit() { + try { + Services.obs.removeObserver(this, CURRENT_ENGINE, true); + } catch (e) { + Cu.reportError(e); + } + }, + + get searchSuggestionUIStrings() { + return ContentSearch.searchSuggestionUIStrings; + }, + + removeFormHistory({browser}, suggestion) { + ContentSearch.removeFormHistoryEntry({target: browser}, suggestion); + }, + + manageEngines(browser) { + const browserWin = browser.ownerGlobal; + browserWin.openPreferences("paneSearch"); + }, + + asyncGetState: Task.async(function*() { + let state = yield ContentSearch.currentStateObj(true); + return state; + }), + + asyncPerformSearch: Task.async(function*({browser}, searchData) { + ContentSearch.performSearch({target: browser}, searchData); + yield ContentSearch.addFormHistoryEntry({target: browser}, searchData.searchString); + }), + + asyncCycleEngine: Task.async(function*(engineName) { + Services.search.currentEngine = Services.search.getEngineByName(engineName); + let state = yield ContentSearch.currentStateObj(true); + let newEngine = state.currentEngine; + this.emit(CURRENT_ENGINE, newEngine); + }), + + asyncGetSuggestions: Task.async(function*(engineName, searchString, target) { + let suggestions = ContentSearch.getSuggestions(engineName, searchString, target.browser); + return suggestions; + }), +}; + +const NewTabSearchProvider = { + search: new SearchProvider(), +}; diff --git a/application/basilisk/components/newtab/NewTabURL.jsm b/application/basilisk/components/newtab/NewTabURL.jsm new file mode 100644 index 000000000..5000eae2e --- /dev/null +++ b/application/basilisk/components/newtab/NewTabURL.jsm @@ -0,0 +1,36 @@ +/* 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/. */ + +/* globals XPCOMUtils, aboutNewTabService*/ +/* exported NewTabURL */ + +"use strict"; + +const {utils: Cu} = Components; + +this.EXPORTED_SYMBOLS = ["NewTabURL"]; + +Cu.import("resource://gre/modules/XPCOMUtils.jsm"); +XPCOMUtils.defineLazyServiceGetter(this, "aboutNewTabService", + "@mozilla.org/browser/aboutnewtab-service;1", + "nsIAboutNewTabService"); + +this.NewTabURL = { + + get: function() { + return aboutNewTabService.newTabURL; + }, + + get overridden() { + return aboutNewTabService.overridden; + }, + + override: function(newURL) { + aboutNewTabService.newTabURL = newURL; + }, + + reset: function() { + aboutNewTabService.resetNewTabURL(); + } +}; diff --git a/application/basilisk/components/newtab/NewTabWebChannel.jsm b/application/basilisk/components/newtab/NewTabWebChannel.jsm new file mode 100644 index 000000000..40ee73684 --- /dev/null +++ b/application/basilisk/components/newtab/NewTabWebChannel.jsm @@ -0,0 +1,299 @@ +/* global + NewTabPrefsProvider, + Services, + EventEmitter, + Preferences, + XPCOMUtils, + WebChannel, + NewTabRemoteResources +*/ +/* exported NewTabWebChannel */ + +"use strict"; + +this.EXPORTED_SYMBOLS = ["NewTabWebChannel"]; + +const {utils: Cu} = Components; +Cu.import("resource://gre/modules/XPCOMUtils.jsm"); +Cu.import("resource://gre/modules/Services.jsm"); +Cu.import("resource://gre/modules/Preferences.jsm"); + +XPCOMUtils.defineLazyModuleGetter(this, "NewTabPrefsProvider", + "resource:///modules/NewTabPrefsProvider.jsm"); +XPCOMUtils.defineLazyModuleGetter(this, "NewTabRemoteResources", + "resource:///modules/NewTabRemoteResources.jsm"); +XPCOMUtils.defineLazyModuleGetter(this, "WebChannel", + "resource://gre/modules/WebChannel.jsm"); +XPCOMUtils.defineLazyGetter(this, "EventEmitter", function() { + const {EventEmitter} = Cu.import("resource://devtools/shared/event-emitter.js", {}); + return EventEmitter; +}); + +const CHAN_ID = "newtab"; +const PREF_ENABLED = "browser.newtabpage.remote"; +const PREF_MODE = "browser.newtabpage.remote.mode"; + +/** + * NewTabWebChannel is the conduit for all communication with unprivileged newtab instances. + * + * It allows for the ability to broadcast to all newtab browsers. + * If the browser.newtab.remote pref is false, the object will be in an uninitialized state. + * + * Mode choices: + * 'production': pages from our production CDN + * 'staging': pages from our staging CDN + * 'test': intended for tests + * 'test2': intended for tests + * 'dev': intended for development + * + * An unknown mode will result in 'production' mode, which is the default + * + * Incoming messages are expected to be JSON-serialized and in the format: + * + * { + * type: "REQUEST_SCREENSHOT", + * data: { + * url: "https://example.com" + * } + * } + * + * Or: + * + * { + * type: "REQUEST_SCREENSHOT", + * } + * + * Outgoing messages are expected to be objects serializable by structured cloning, in a similar format: + * { + * type: "RECEIVE_SCREENSHOT", + * data: { + * "url": "https://example.com", + * "image": "dataURi:....." + * } + * } + */ +let NewTabWebChannelImpl = function NewTabWebChannelImpl() { + EventEmitter.decorate(this); + this._handlePrefChange = this._handlePrefChange.bind(this); + this._incomingMessage = this._incomingMessage.bind(this); +}; + +NewTabWebChannelImpl.prototype = { + _prefs: {}, + _channel: null, + + // a WeakMap containing browsers as keys and a weak ref to their principal + // as value + _principals: null, + + // a Set containing weak refs to browsers + _browsers: null, + + /* + * Returns current channel's ID + */ + get chanId() { + return CHAN_ID; + }, + + /* + * Returns the number of browsers currently tracking + */ + get numBrowsers() { + return this._getBrowserRefs().length; + }, + + /* + * Returns current channel's origin + */ + get origin() { + if (!(this._prefs.mode in NewTabRemoteResources.MODE_CHANNEL_MAP)) { + this._prefs.mode = "production"; + } + return NewTabRemoteResources.MODE_CHANNEL_MAP[this._prefs.mode].origin; + }, + + /* + * Unloads all browsers and principals + */ + _unloadAll() { + if (this._principals != null) { + this._principals = new WeakMap(); + } + this._browsers = new Set(); + this.emit("targetUnloadAll"); + }, + + /* + * Checks if a browser is known + * + * This will cause an iteration through all known browsers. + * That's ok, we don't expect a lot of browsers + */ + _isBrowserKnown(browser) { + for (let bRef of this._getBrowserRefs()) { + let b = bRef.get(); + if (b && b.permanentKey === browser.permanentKey) { + return true; + } + } + + return false; + }, + + /* + * Obtains all known browser refs + */ + _getBrowserRefs() { + // Some code may try to emit messages after teardown. + if (!this._browsers) { + return []; + } + let refs = []; + for (let bRef of this._browsers) { + /* + * even though we hold a weak ref to browser, it seems that browser + * objects aren't gc'd immediately after a tab closes. They stick around + * in memory, but thankfully they don't have a documentURI in that case + */ + let browser = bRef.get(); + if (browser && browser.documentURI) { + refs.push(bRef); + } else { + // need to clean up principals because the browser object is not gc'ed + // immediately + this._principals.delete(browser); + this._browsers.delete(bRef); + this.emit("targetUnload"); + } + } + return refs; + }, + + /* + * Receives a message from content. + * + * Keeps track of browsers for broadcast, relays messages to listeners. + */ + _incomingMessage(id, message, target) { + if (this.chanId !== id) { + Cu.reportError(new Error("NewTabWebChannel unexpected message destination")); + } + + /* + * need to differentiate by browser, because event targets are created each + * time a message is sent. + */ + if (!this._isBrowserKnown(target.browser)) { + this._browsers.add(Cu.getWeakReference(target.browser)); + this._principals.set(target.browser, Cu.getWeakReference(target.principal)); + this.emit("targetAdd"); + } + + try { + let msg = JSON.parse(message); + this.emit(msg.type, {data: msg.data, target: target}); + } catch (err) { + Cu.reportError(err); + } + }, + + /* + * Sends a message to all known browsers + */ + broadcast(actionType, message) { + for (let bRef of this._getBrowserRefs()) { + let browser = bRef.get(); + try { + let principal = this._principals.get(browser).get(); + if (principal && browser && browser.documentURI) { + this._channel.send({type: actionType, data: message}, {browser, principal}); + } + } catch (e) { + Cu.reportError(new Error("NewTabWebChannel WeakRef is dead")); + this._principals.delete(browser); + } + } + }, + + /* + * Sends a message to a specific target + */ + send(actionType, message, target) { + try { + this._channel.send({type: actionType, data: message}, target); + } catch (e) { + // Web Channel might be dead + Cu.reportError(e); + } + }, + + /* + * Pref change observer callback + */ + _handlePrefChange(prefName, newState, forceState) { // eslint-disable-line no-unused-vars + switch (prefName) { + case PREF_ENABLED: + if (!this._prefs.enabled && newState) { + // changing state from disabled to enabled + this.setupState(); + } else if (this._prefs.enabled && !newState) { + // changing state from enabled to disabled + this.tearDownState(); + } + break; + case PREF_MODE: + if (this._prefs.mode !== newState) { + // changing modes + this.tearDownState(); + this.setupState(); + } + break; + } + }, + + /* + * Sets up the internal state + */ + setupState() { + this._prefs.enabled = Preferences.get(PREF_ENABLED, false); + + let mode = Preferences.get(PREF_MODE, "production"); + if (!(mode in NewTabRemoteResources.MODE_CHANNEL_MAP)) { + mode = "production"; + } + this._prefs.mode = mode; + this._principals = new WeakMap(); + this._browsers = new Set(); + + if (this._prefs.enabled) { + this._channel = new WebChannel(this.chanId, Services.io.newURI(this.origin, null, null)); + this._channel.listen(this._incomingMessage); + } + }, + + tearDownState() { + if (this._channel) { + this._channel.stopListening(); + } + this._prefs = {}; + this._unloadAll(); + this._channel = null; + this._principals = null; + this._browsers = null; + }, + + init() { + this.setupState(); + NewTabPrefsProvider.prefs.on(PREF_ENABLED, this._handlePrefChange); + NewTabPrefsProvider.prefs.on(PREF_MODE, this._handlePrefChange); + }, + + uninit() { + this.tearDownState(); + NewTabPrefsProvider.prefs.off(PREF_ENABLED, this._handlePrefChange); + NewTabPrefsProvider.prefs.off(PREF_MODE, this._handlePrefChange); + } +}; + +let NewTabWebChannel = new NewTabWebChannelImpl(); diff --git a/application/basilisk/components/newtab/PlacesProvider.jsm b/application/basilisk/components/newtab/PlacesProvider.jsm new file mode 100644 index 000000000..f478b5c5c --- /dev/null +++ b/application/basilisk/components/newtab/PlacesProvider.jsm @@ -0,0 +1,211 @@ +/* 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/. */ + +/* global XPCOMUtils, Services, PlacesUtils, EventEmitter */ +/* global gLinks */ +/* exported PlacesProvider */ + +"use strict"; + +this.EXPORTED_SYMBOLS = ["PlacesProvider"]; + +const {interfaces: Ci, utils: Cu} = Components; +Cu.import("resource://gre/modules/Services.jsm"); +Cu.import("resource://gre/modules/XPCOMUtils.jsm"); + +XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils", + "resource://gre/modules/PlacesUtils.jsm"); + +XPCOMUtils.defineLazyGetter(this, "EventEmitter", function() { + const {EventEmitter} = Cu.import("resource://devtools/shared/event-emitter.js", {}); + return EventEmitter; +}); + +XPCOMUtils.defineLazyModuleGetter(this, "Task", + "resource://gre/modules/Task.jsm"); +XPCOMUtils.defineLazyModuleGetter(this, "NewTabUtils", + "resource://gre/modules/NewTabUtils.jsm"); + +// The maximum number of results PlacesProvider retrieves from history. +const HISTORY_RESULTS_LIMIT = 100; + +/* Queries history to retrieve the most visited sites. Emits events when the + * history changes. + * Implements the EventEmitter interface. + */ +let Links = function Links() { + EventEmitter.decorate(this); +}; + +Links.prototype = { + /** + * Set this to change the maximum number of links the provider will provide. + */ + get maxNumLinks() { + // getter, so it can't be replaced dynamically + return HISTORY_RESULTS_LIMIT; + }, + + /** + * A set of functions called by @mozilla.org/browser/nav-historyservice + * All history events are emitted from this object. + */ + historyObserver: { + onDeleteURI: function historyObserver_onDeleteURI(aURI) { + // let observers remove sensetive data associated with deleted visit + gLinks.emit("deleteURI", { + url: aURI.spec, + }); + }, + + onClearHistory: function historyObserver_onClearHistory() { + gLinks.emit("clearHistory"); + }, + + onFrecencyChanged: function historyObserver_onFrecencyChanged(aURI, + aNewFrecency, aGUID, aHidden, aLastVisitDate) { // jshint ignore:line + // The implementation of the query in getLinks excludes hidden and + // unvisited pages, so it's important to exclude them here, too. + if (!aHidden && aLastVisitDate && + NewTabUtils.linkChecker.checkLoadURI(aURI.spec)) { + gLinks.emit("linkChanged", { + url: aURI.spec, + frecency: aNewFrecency, + lastVisitDate: aLastVisitDate, + type: "history", + }); + } + }, + + onManyFrecenciesChanged: function historyObserver_onManyFrecenciesChanged() { + // Called when frecencies are invalidated and also when clearHistory is called + // See toolkit/components/places/tests/unit/test_frecency_observers.js + gLinks.emit("manyLinksChanged"); + }, + + onTitleChanged: function historyObserver_onTitleChanged(aURI, aNewTitle) { + if (NewTabUtils.linkChecker.checkLoadURI(aURI.spec)) { + gLinks.emit("linkChanged", { + url: aURI.spec, + title: aNewTitle + }); + } + }, + + QueryInterface: XPCOMUtils.generateQI([Ci.nsINavHistoryObserver, + Ci.nsISupportsWeakReference]) + }, + + /** + * Must be called before the provider is used. + * Makes it easy to disable under pref + */ + init: function PlacesProvider_init() { + try { + PlacesUtils.history.addObserver(this.historyObserver, true); + } catch (e) { + Cu.reportError(e); + } + }, + + /** + * Gets the current set of links delivered by this provider. + * + * @returns {Promise} Returns a promise with the array of links as payload. + */ + getLinks: Task.async(function*() { + // Select a single page per host with highest frecency, highest recency. + // Choose N top such pages. Note +rev_host, to turn off optimizer per :mak + // suggestion. + let sqlQuery = `SELECT url, title, frecency, + last_visit_date as lastVisitDate, + "history" as type + FROM moz_places + WHERE frecency in ( + SELECT MAX(frecency) as frecency + FROM moz_places + WHERE hidden = 0 AND last_visit_date NOTNULL + GROUP BY +rev_host + ORDER BY frecency DESC + LIMIT :limit + ) + GROUP BY rev_host HAVING MAX(lastVisitDate) + ORDER BY frecency DESC, lastVisitDate DESC, url`; + + let links = yield this.executePlacesQuery(sqlQuery, { + columns: ["url", "title", "lastVisitDate", "frecency", "type"], + params: {limit: this.maxNumLinks} + }); + + return links.filter(link => NewTabUtils.linkChecker.checkLoadURI(link.url)); + }), + + /** + * Executes arbitrary query against places database + * + * @param {String} aSql + * SQL query to execute + * @param {Object} [optional] aOptions + * aOptions.columns - an array of column names. if supplied the returned + * items will consist of objects keyed on column names. Otherwise + * an array of raw values is returned in the select order + * aOptions.param - an object of SQL binding parameters + * aOptions.callback - a callback to handle query rows + * + * @returns {Promise} Returns a promise with the array of retrieved items + */ + executePlacesQuery: Task.async(function*(aSql, aOptions={}) { + let {columns, params, callback} = aOptions; + let items = []; + let queryError = null; + let conn = yield PlacesUtils.promiseDBConnection(); + yield conn.executeCached(aSql, params, aRow => { + try { + // check if caller wants to handle query raws + if (callback) { + callback(aRow); + } + // otherwise fill in the item and add items array + else { + let item = null; + // if columns array is given construct an object + if (columns && Array.isArray(columns)) { + item = {}; + columns.forEach(column => { + item[column] = aRow.getResultByName(column); + }); + } else { + // if no columns - make an array of raw values + item = []; + for (let i = 0; i < aRow.numEntries; i++) { + item.push(aRow.getResultByIndex(i)); + } + } + items.push(item); + } + } catch (e) { + queryError = e; + throw StopIteration; + } + }); + if (queryError) { + throw new Error(queryError); + } + return items; + }), +}; + +/** + * Singleton that serves as the default link provider for the grid. + */ +const gLinks = new Links(); // jshint ignore:line + +let PlacesProvider = { + links: gLinks, +}; + +// Kept only for backwards-compatibility +XPCOMUtils.defineLazyGetter(PlacesProvider, "LinkChecker", + () => NewTabUtils.linkChecker); + diff --git a/application/basilisk/components/newtab/PreviewProvider.jsm b/application/basilisk/components/newtab/PreviewProvider.jsm new file mode 100644 index 000000000..8624b8544 --- /dev/null +++ b/application/basilisk/components/newtab/PreviewProvider.jsm @@ -0,0 +1,49 @@ +/* global XPCOMUtils, BackgroundPageThumbs, FileUtils, PageThumbsStorage, Task, MIMEService */ +/* exported PreviewProvider */ + +"use strict"; + +this.EXPORTED_SYMBOLS = ["PreviewProvider"]; + +const {utils: Cu} = Components; +Cu.import("resource://gre/modules/XPCOMUtils.jsm"); +Cu.import("resource://gre/modules/Task.jsm"); +Cu.import("resource://gre/modules/PageThumbs.jsm"); +Cu.import("resource://gre/modules/FileUtils.jsm"); +const {OS} = Cu.import("resource://gre/modules/osfile.jsm"); + +XPCOMUtils.defineLazyModuleGetter(this, "BackgroundPageThumbs", + "resource://gre/modules/BackgroundPageThumbs.jsm"); +XPCOMUtils.defineLazyServiceGetter(this, "MIMEService", + "@mozilla.org/mime;1", "nsIMIMEService"); + +let PreviewProvider = { + /** + * Returns a thumbnail as a data URI for a url, creating it if necessary + * + * @param {String} url + * a url to obtain a thumbnail for + * @return {Promise} A Promise that resolves with a base64 encoded thumbnail + */ + getThumbnail: Task.async(function* PreviewProvider_getThumbnail(url) { + try { + yield BackgroundPageThumbs.captureIfMissing(url); + let imgPath = PageThumbsStorage.getFilePathForURL(url); + + // OS.File object used to easily read off-thread + let file = yield OS.File.open(imgPath, {read: true, existing: true}); + + // nsIFile object needed for MIMEService + let nsFile = FileUtils.File(imgPath); + + let contentType = MIMEService.getTypeFromFile(nsFile); + let bytes = yield file.read(); + let encodedData = btoa(String.fromCharCode.apply(null, bytes)); + file.close(); + return `data:${contentType};base64,${encodedData}`; + } catch (err) { + Cu.reportError(`PreviewProvider_getThumbnail error: ${err}`); + throw err; + } + }) +}; diff --git a/application/basilisk/components/newtab/aboutNewTabService.js b/application/basilisk/components/newtab/aboutNewTabService.js new file mode 100644 index 000000000..54c3749e8 --- /dev/null +++ b/application/basilisk/components/newtab/aboutNewTabService.js @@ -0,0 +1,289 @@ +/* + * 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/. +*/ + +/* globals XPCOMUtils, NewTabPrefsProvider, Services, + Locale, UpdateUtils, NewTabRemoteResources +*/ +"use strict"; + +const {utils: Cu, interfaces: Ci} = Components; + +Cu.import("resource://gre/modules/XPCOMUtils.jsm"); +Cu.import("resource://gre/modules/Services.jsm"); + +XPCOMUtils.defineLazyModuleGetter(this, "UpdateUtils", + "resource://gre/modules/UpdateUtils.jsm"); +XPCOMUtils.defineLazyModuleGetter(this, "NewTabPrefsProvider", + "resource:///modules/NewTabPrefsProvider.jsm"); +XPCOMUtils.defineLazyModuleGetter(this, "Locale", + "resource://gre/modules/Locale.jsm"); +XPCOMUtils.defineLazyModuleGetter(this, "NewTabRemoteResources", + "resource:///modules/NewTabRemoteResources.jsm"); + +const LOCAL_NEWTAB_URL = "chrome://browser/content/newtab/newTab.xhtml"; + +const REMOTE_NEWTAB_PATH = "/newtab/v%VERSION%/%CHANNEL%/%LOCALE%/index.html"; + +const ABOUT_URL = "about:newtab"; + +// Pref that tells if remote newtab is enabled +const PREF_REMOTE_ENABLED = "browser.newtabpage.remote"; + +// Pref branch necesssary for testing +const PREF_REMOTE_CS_TEST = "browser.newtabpage.remote.content-signing-test"; + +// The preference that tells whether to match the OS locale +const PREF_MATCH_OS_LOCALE = "intl.locale.matchOS"; + +// The preference that tells what locale the user selected +const PREF_SELECTED_LOCALE = "general.useragent.locale"; + +// The preference that tells what remote mode is enabled. +const PREF_REMOTE_MODE = "browser.newtabpage.remote.mode"; + +// The preference that tells which remote version is expected. +const PREF_REMOTE_VERSION = "browser.newtabpage.remote.version"; + +const VALID_CHANNELS = new Set(["esr", "release", "beta", "aurora", "nightly"]); + +function AboutNewTabService() { + NewTabPrefsProvider.prefs.on(PREF_REMOTE_ENABLED, this._handleToggleEvent.bind(this)); + + this._updateRemoteMaybe = this._updateRemoteMaybe.bind(this); + + // trigger remote change if needed, according to pref + this.toggleRemote(Services.prefs.getBoolPref(PREF_REMOTE_ENABLED)); +} + +/* + * A service that allows for the overriding, at runtime, of the newtab page's url. + * Additionally, the service manages pref state between a remote and local newtab page. + * + * There is tight coupling with browser/about/AboutRedirector.cpp. + * + * 1. Browser chrome access: + * + * When the user issues a command to open a new tab page, usually clicking a button + * in the browser chrome or using shortcut keys, the browser chrome code invokes the + * service to obtain the newtab URL. It then loads that URL in a new tab. + * + * When not overridden, the default URL emitted by the service is "about:newtab". + * When overridden, it returns the overriden URL. + * + * 2. Redirector Access: + * + * When the URL loaded is about:newtab, the default behavior, or when entered in the + * URL bar, the redirector is hit. The service is then called to return either of + * two URLs, a chrome or remote one, based on the browser.newtabpage.remote pref. + * + * NOTE: "about:newtab" will always result in a default newtab page, and never an overridden URL. + * + * Access patterns: + * + * The behavior is different when accessing the service via browser chrome or via redirector + * largely to maintain compatibility with expectations of add-on developers. + * + * Loading a chrome resource, or an about: URL in the redirector with either the + * LOAD_NORMAL or LOAD_REPLACE flags yield unexpected behaviors, so a roundtrip + * to the redirector from browser chrome is avoided. + */ +AboutNewTabService.prototype = { + + _newTabURL: ABOUT_URL, + _remoteEnabled: false, + _remoteURL: null, + _overridden: false, + + classID: Components.ID("{dfcd2adc-7867-4d3a-ba70-17501f208142}"), + QueryInterface: XPCOMUtils.generateQI([Ci.nsIAboutNewTabService]), + _xpcom_categories: [{ + service: true + }], + + _handleToggleEvent(prefName, stateEnabled, forceState) { // jshint unused:false + if (this.toggleRemote(stateEnabled, forceState)) { + Services.obs.notifyObservers(null, "newtab-url-changed", ABOUT_URL); + } + }, + + /** + * React to changes to the remote newtab pref. + * + * If browser.newtabpage.remote is true, this will change the default URL to the + * remote newtab page URL. If browser.newtabpage.remote is false, the default URL + * will be a local chrome URL. + * + * This will only act if there is a change of state and if not overridden. + * + * @returns {Boolean} Returns if there has been a state change + * + * @param {Boolean} stateEnabled remote state to set to + * @param {Boolean} forceState force state change + */ + toggleRemote(stateEnabled, forceState) { + + if (!forceState && (this._overriden || stateEnabled === this._remoteEnabled)) { + // exit there is no change of state + return false; + } + + let csTest = Services.prefs.getBoolPref(PREF_REMOTE_CS_TEST); + if (stateEnabled) { + if (!csTest) { + this._remoteURL = this.generateRemoteURL(); + } else { + this._remoteURL = this._newTabURL; + } + NewTabPrefsProvider.prefs.on( + PREF_SELECTED_LOCALE, + this._updateRemoteMaybe); + NewTabPrefsProvider.prefs.on( + PREF_MATCH_OS_LOCALE, + this._updateRemoteMaybe); + NewTabPrefsProvider.prefs.on( + PREF_REMOTE_MODE, + this._updateRemoteMaybe); + NewTabPrefsProvider.prefs.on( + PREF_REMOTE_VERSION, + this._updateRemoteMaybe); + this._remoteEnabled = true; + } else { + NewTabPrefsProvider.prefs.off(PREF_SELECTED_LOCALE, this._updateRemoteMaybe); + NewTabPrefsProvider.prefs.off(PREF_MATCH_OS_LOCALE, this._updateRemoteMaybe); + NewTabPrefsProvider.prefs.off(PREF_REMOTE_MODE, this._updateRemoteMaybe); + NewTabPrefsProvider.prefs.off(PREF_REMOTE_VERSION, this._updateRemoteMaybe); + this._remoteEnabled = false; + } + if (!csTest) { + this._newTabURL = ABOUT_URL; + } + return true; + }, + + /* + * Generate a default url based on remote mode, version, locale and update channel + */ + generateRemoteURL() { + let releaseName = this.releaseFromUpdateChannel(UpdateUtils.UpdateChannel); + let path = REMOTE_NEWTAB_PATH + .replace("%VERSION%", this.remoteVersion) + .replace("%LOCALE%", Locale.getLocale()) + .replace("%CHANNEL%", releaseName); + let mode = Services.prefs.getCharPref(PREF_REMOTE_MODE, "production"); + if (!(mode in NewTabRemoteResources.MODE_CHANNEL_MAP)) { + mode = "production"; + } + return NewTabRemoteResources.MODE_CHANNEL_MAP[mode].origin + path; + }, + + /* + * Returns the default URL. + * + * This URL only depends on the browser.newtabpage.remote pref. Overriding + * the newtab page has no effect on the result of this function. + * + * The result is also the remote URL if this is in a test (PREF_REMOTE_CS_TEST) + * + * @returns {String} the default newtab URL, remote or local depending on browser.newtabpage.remote + */ + get defaultURL() { + let csTest = Services.prefs.getBoolPref(PREF_REMOTE_CS_TEST); + if (this._remoteEnabled || csTest) { + return this._remoteURL; + } + return LOCAL_NEWTAB_URL; + }, + + /* + * Updates the remote location when the page is not overriden. + * + * Useful when there is a dependent pref change + */ + _updateRemoteMaybe() { + if (!this._remoteEnabled || this._overridden) { + return; + } + + let url = this.generateRemoteURL(); + if (url !== this._remoteURL) { + this._remoteURL = url; + Services.obs.notifyObservers(null, "newtab-url-changed", + this._remoteURL); + } + }, + + /** + * Returns the release name from an Update Channel name + * + * @returns {String} a release name based on the update channel. Defaults to nightly + */ + releaseFromUpdateChannel(channelName) { + return VALID_CHANNELS.has(channelName) ? channelName : "nightly"; + }, + + get newTabURL() { + return this._newTabURL; + }, + + get remoteVersion() { + return Services.prefs.getCharPref(PREF_REMOTE_VERSION, "1"); + }, + + get remoteReleaseName() { + return this.releaseFromUpdateChannel(UpdateUtils.UpdateChannel); + }, + + set newTabURL(aNewTabURL) { + let csTest = Services.prefs.getBoolPref(PREF_REMOTE_CS_TEST); + aNewTabURL = aNewTabURL.trim(); + if (aNewTabURL === ABOUT_URL) { + // avoid infinite redirects in case one sets the URL to about:newtab + this.resetNewTabURL(); + return; + } else if (aNewTabURL === "") { + aNewTabURL = "about:blank"; + } + let remoteURL = this.generateRemoteURL(); + let prefRemoteEnabled = Services.prefs.getBoolPref(PREF_REMOTE_ENABLED); + let isResetLocal = !prefRemoteEnabled && aNewTabURL === LOCAL_NEWTAB_URL; + let isResetRemote = prefRemoteEnabled && aNewTabURL === remoteURL; + + if (isResetLocal || isResetRemote) { + if (this._overriden && !csTest) { + // only trigger a reset if previously overridden and this is no test + this.resetNewTabURL(); + } + return; + } + // turn off remote state if needed + if (!csTest) { + this.toggleRemote(false); + } else { + // if this is a test, we want the remoteURL to be set + this._remoteURL = aNewTabURL; + } + this._newTabURL = aNewTabURL; + this._overridden = true; + Services.obs.notifyObservers(null, "newtab-url-changed", this._newTabURL); + }, + + get overridden() { + return this._overridden; + }, + + get remoteEnabled() { + return this._remoteEnabled; + }, + + resetNewTabURL() { + this._overridden = false; + this._newTabURL = ABOUT_URL; + this.toggleRemote(Services.prefs.getBoolPref(PREF_REMOTE_ENABLED), true); + Services.obs.notifyObservers(null, "newtab-url-changed", this._newTabURL); + } +}; + +this.NSGetFactory = XPCOMUtils.generateNSGetFactory([AboutNewTabService]); diff --git a/application/basilisk/components/newtab/moz.build b/application/basilisk/components/newtab/moz.build new file mode 100644 index 000000000..3d3be6454 --- /dev/null +++ b/application/basilisk/components/newtab/moz.build @@ -0,0 +1,27 @@ +# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*- +# vim: set filetype=python: +# 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/. + +EXTRA_JS_MODULES += [ + 'NewTabMessages.jsm', + 'NewTabPrefsProvider.jsm', + 'NewTabRemoteResources.jsm', + 'NewTabSearchProvider.jsm', + 'NewTabURL.jsm', + 'NewTabWebChannel.jsm', + 'PlacesProvider.jsm', + 'PreviewProvider.jsm' +] + +XPIDL_SOURCES += [ + 'nsIAboutNewTabService.idl', +] + +XPIDL_MODULE = 'browser-newtab' + +EXTRA_COMPONENTS += [ + 'aboutNewTabService.js', + 'NewTabComponents.manifest', +] diff --git a/application/basilisk/components/newtab/nsIAboutNewTabService.idl b/application/basilisk/components/newtab/nsIAboutNewTabService.idl new file mode 100644 index 000000000..bc25c7492 --- /dev/null +++ b/application/basilisk/components/newtab/nsIAboutNewTabService.idl @@ -0,0 +1,63 @@ +/* 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/. */ + +#include "nsISupports.idl" + +/** + * Allows to override about:newtab to point to a different location + * than the one specified within AboutRedirector.cpp + */ + +[scriptable, uuid(dfcd2adc-7867-4d3a-ba70-17501f208142)] +interface nsIAboutNewTabService : nsISupports +{ + /** + * Returns the url of the resource for the newtab page if not overridden, + * otherwise a string represenation of the new URL. + */ + attribute ACString newTabURL; + + /** + * Returns the default URL (remote or local depending on pref) + */ + attribute ACString defaultURL; + + /** + * Returns true if the default resource got overridden. + */ + readonly attribute bool overridden; + + /** + * Returns true if the default resource is remotely hosted and isn't + * overridden + */ + readonly attribute bool remoteEnabled; + + + /** + * Returns the version of the remote newtab page expected + */ + readonly attribute ACString remoteVersion; + + /** + * Returns the expected channel for the remote the newtab page + */ + readonly attribute ACString remoteReleaseName; + + /** + * Generates and returns the remote newtab page url + */ + ACString generateRemoteURL(); + + /** + * Returns a remote new tab release name given an update channel name + */ + ACString releaseFromUpdateChannel(in ACString channelName); + + /** + * Resets to the default resource and also resets the + * overridden attribute to false. + */ + void resetNewTabURL(); +}; |