diff options
Diffstat (limited to 'browser/components/newtab/lib/TopSitesFeed.jsm')
| -rw-r--r-- | browser/components/newtab/lib/TopSitesFeed.jsm | 1715 |
1 files changed, 1715 insertions, 0 deletions
diff --git a/browser/components/newtab/lib/TopSitesFeed.jsm b/browser/components/newtab/lib/TopSitesFeed.jsm new file mode 100644 index 0000000000..9b516cb9ba --- /dev/null +++ b/browser/components/newtab/lib/TopSitesFeed.jsm @@ -0,0 +1,1715 @@ +/* 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 { XPCOMUtils } = ChromeUtils.importESModule( + "resource://gre/modules/XPCOMUtils.sys.mjs" +); + +const { actionCreators: ac, actionTypes: at } = ChromeUtils.importESModule( + "resource://activity-stream/common/Actions.sys.mjs" +); +const { TippyTopProvider } = ChromeUtils.importESModule( + "resource://activity-stream/lib/TippyTopProvider.sys.mjs" +); +const { insertPinned, TOP_SITES_MAX_SITES_PER_ROW } = + ChromeUtils.importESModule( + "resource://activity-stream/common/Reducers.sys.mjs" + ); +const { Dedupe } = ChromeUtils.importESModule( + "resource://activity-stream/common/Dedupe.sys.mjs" +); +const { shortURL } = ChromeUtils.import( + "resource://activity-stream/lib/ShortURL.jsm" +); +const { getDefaultOptions } = ChromeUtils.import( + "resource://activity-stream/lib/ActivityStreamStorage.jsm" +); +const { + CUSTOM_SEARCH_SHORTCUTS, + SEARCH_SHORTCUTS_EXPERIMENT, + SEARCH_SHORTCUTS_SEARCH_ENGINES_PREF, + SEARCH_SHORTCUTS_HAVE_PINNED_PREF, + checkHasSearchEngine, + getSearchProvider, + getSearchFormURL, +} = ChromeUtils.importESModule( + "resource://activity-stream/lib/SearchShortcuts.sys.mjs" +); + +const lazy = {}; + +ChromeUtils.defineModuleGetter( + lazy, + "FilterAdult", + "resource://activity-stream/lib/FilterAdult.jsm" +); +ChromeUtils.defineESModuleGetters(lazy, { + LinksCache: "resource://activity-stream/lib/LinksCache.sys.mjs", + NewTabUtils: "resource://gre/modules/NewTabUtils.sys.mjs", + NimbusFeatures: "resource://nimbus/ExperimentAPI.sys.mjs", + PageThumbs: "resource://gre/modules/PageThumbs.sys.mjs", + Region: "resource://gre/modules/Region.sys.mjs", + RemoteSettings: "resource://services-settings/remote-settings.sys.mjs", + Sampling: "resource://gre/modules/components-utils/Sampling.sys.mjs", +}); +ChromeUtils.defineModuleGetter( + lazy, + "Screenshots", + "resource://activity-stream/lib/Screenshots.jsm" +); + +XPCOMUtils.defineLazyGetter(lazy, "log", () => { + const { Logger } = ChromeUtils.importESModule( + "resource://messaging-system/lib/Logger.sys.mjs" + ); + return new Logger("TopSitesFeed"); +}); + +// `contextId` is a unique identifier used by Contextual Services +const CONTEXT_ID_PREF = "browser.contextual-services.contextId"; +XPCOMUtils.defineLazyGetter(lazy, "contextId", () => { + let _contextId = Services.prefs.getStringPref(CONTEXT_ID_PREF, null); + if (!_contextId) { + _contextId = String(Services.uuid.generateUUID()); + Services.prefs.setStringPref(CONTEXT_ID_PREF, _contextId); + } + return _contextId; +}); + +const DEFAULT_SITES_PREF = "default.sites"; +const SHOWN_ON_NEWTAB_PREF = "feeds.topsites"; +const DEFAULT_TOP_SITES = []; +const FRECENCY_THRESHOLD = 100 + 1; // 1 visit (skip first-run/one-time pages) +const MIN_FAVICON_SIZE = 96; +const CACHED_LINK_PROPS_TO_MIGRATE = ["screenshot", "customScreenshot"]; +const PINNED_FAVICON_PROPS_TO_MIGRATE = [ + "favicon", + "faviconRef", + "faviconSize", +]; +const SECTION_ID = "topsites"; +const ROWS_PREF = "topSitesRows"; +const SHOW_SPONSORED_PREF = "showSponsoredTopSites"; +// The default total number of sponsored top sites to fetch from Contile +// and Pocket. +const MAX_NUM_SPONSORED = 2; +// Nimbus variable for the total number of sponsored top sites including +// both Contile and Pocket sources. +// The default will be `MAX_NUM_SPONSORED` if this variable is unspecified. +const NIMBUS_VARIABLE_MAX_SPONSORED = "topSitesMaxSponsored"; +// Nimbus variable to allow more than two sponsored tiles from Contile to be +//considered for Top Sites. +const NIMBUS_VARIABLE_ADDITIONAL_TILES = + "topSitesUseAdditionalTilesFromContile"; +// Nimbus variable to enable the SOV feature for sponsored tiles. +const NIMBUS_VARIABLE_CONTILE_SOV_ENABLED = "topSitesContileSovEnabled"; +// Nimbu variable for the total number of sponsor topsite that come from Contile +// The default will be `CONTILE_MAX_NUM_SPONSORED` if variable is unspecified. +const NIMBUS_VARIABLE_CONTILE_MAX_NUM_SPONSORED = "topSitesContileMaxSponsored"; + +// Search experiment stuff +const FILTER_DEFAULT_SEARCH_PREF = "improvesearch.noDefaultSearchTile"; +const SEARCH_FILTERS = [ + "google", + "search.yahoo", + "yahoo", + "bing", + "ask", + "duckduckgo", +]; + +const REMOTE_SETTING_DEFAULTS_PREF = "browser.topsites.useRemoteSetting"; +const DEFAULT_SITES_OVERRIDE_PREF = + "browser.newtabpage.activity-stream.default.sites"; +const DEFAULT_SITES_EXPERIMENTS_PREF_BRANCH = "browser.topsites.experiment."; + +// Mozilla Tiles Service (Contile) prefs +// Nimbus variable for the Contile integration. It falls back to the pref: +// `browser.topsites.contile.enabled`. +const NIMBUS_VARIABLE_CONTILE_ENABLED = "topSitesContileEnabled"; +const CONTILE_ENDPOINT_PREF = "browser.topsites.contile.endpoint"; +const CONTILE_UPDATE_INTERVAL = 15 * 60 * 1000; // 15 minutes +// The maximum number of sponsored top sites to fetch from Contile. +const CONTILE_MAX_NUM_SPONSORED = 2; +const TOP_SITES_BLOCKED_SPONSORS_PREF = "browser.topsites.blockedSponsors"; +const CONTILE_CACHE_PREF = "browser.topsites.contile.cachedTiles"; +const CONTILE_CACHE_VALID_FOR_PREF = "browser.topsites.contile.cacheValidFor"; +const CONTILE_CACHE_LAST_FETCH_PREF = "browser.topsites.contile.lastFetch"; + +// Partners of sponsored tiles. +const SPONSORED_TILE_PARTNER_AMP = "amp"; +const SPONSORED_TILE_PARTNER_MOZ_SALES = "moz-sales"; +const SPONSORED_TILE_PARTNERS = new Set([ + SPONSORED_TILE_PARTNER_AMP, + SPONSORED_TILE_PARTNER_MOZ_SALES, +]); + +function getShortURLForCurrentSearch() { + const url = shortURL({ url: Services.search.defaultEngine.searchForm }); + return url; +} + +class ContileIntegration { + constructor(topSitesFeed) { + this._topSitesFeed = topSitesFeed; + this._lastPeriodicUpdate = 0; + this._sites = []; + // The Share-of-Voice object managed by Shepherd and sent via Contile. + this._sov = null; + } + + get sites() { + return this._sites; + } + + get sov() { + return this._sov; + } + + periodicUpdate() { + let now = Date.now(); + if (now - this._lastPeriodicUpdate >= CONTILE_UPDATE_INTERVAL) { + this._lastPeriodicUpdate = now; + this.refresh(); + } + } + + async refresh() { + let updateDefaultSites = await this._fetchSites(); + if (updateDefaultSites) { + this._topSitesFeed._readDefaults(); + } + } + + /** + * Clear Contile Cache Prefs. + */ + _resetContileCachePrefs() { + Services.prefs.clearUserPref(CONTILE_CACHE_PREF); + Services.prefs.clearUserPref(CONTILE_CACHE_LAST_FETCH_PREF); + Services.prefs.clearUserPref(CONTILE_CACHE_VALID_FOR_PREF); + } + + /** + * Filter the tiles whose sponsor is on the Top Sites sponsor blocklist. + * + * @param {array} tiles + * An array of the tile objects + */ + _filterBlockedSponsors(tiles) { + const blocklist = JSON.parse( + Services.prefs.getStringPref(TOP_SITES_BLOCKED_SPONSORS_PREF, "[]") + ); + return tiles.filter(tile => !blocklist.includes(shortURL(tile))); + } + + /** + * Calculate the time Contile response is valid for based on cache-control header + * + * @param {string} cacheHeader + * string value of the Contile resposne cache-control header + */ + _extractCacheValidFor(cacheHeader) { + if (cacheHeader === undefined) { + lazy.log.warn("Contile response cache control header is undefined"); + return 0; + } + const [, staleIfError] = cacheHeader.match(/stale-if-error=\s*([0-9]+)/i); + const [, maxAge] = cacheHeader.match(/max-age=\s*([0-9]+)/i); + const validFor = + Number.parseInt(staleIfError, 10) + Number.parseInt(maxAge, 10); + return isNaN(validFor) ? 0 : validFor; + } + + /** + * Load Tiles from Contile Cache Prefs + */ + _loadTilesFromCache() { + lazy.log.info("Contile client is trying to load tiles from local cache."); + const now = Math.round(Date.now() / 1000); + const lastFetch = Services.prefs.getIntPref( + CONTILE_CACHE_LAST_FETCH_PREF, + 0 + ); + const validFor = Services.prefs.getIntPref(CONTILE_CACHE_VALID_FOR_PREF, 0); + if (now <= lastFetch + validFor) { + try { + let cachedTiles = JSON.parse( + Services.prefs.getStringPref(CONTILE_CACHE_PREF) + ); + cachedTiles = this._filterBlockedSponsors(cachedTiles); + this._sites = cachedTiles; + lazy.log.info("Local cache loaded."); + return true; + } catch (error) { + lazy.log.warn(`Failed to load tiles from local cache: ${error}.`); + return false; + } + } + + return false; + } + + /** + * Determine number of Tiles to get from Contile + */ + _getMaxNumFromContile() { + return ( + lazy.NimbusFeatures.pocketNewtab.getVariable( + NIMBUS_VARIABLE_CONTILE_MAX_NUM_SPONSORED + ) ?? CONTILE_MAX_NUM_SPONSORED + ); + } + + async _fetchSites() { + if ( + !lazy.NimbusFeatures.newtab.getVariable( + NIMBUS_VARIABLE_CONTILE_ENABLED + ) || + !this._topSitesFeed.store.getState().Prefs.values[SHOW_SPONSORED_PREF] + ) { + if (this._sites.length) { + this._sites = []; + return true; + } + return false; + } + try { + let url = Services.prefs.getStringPref(CONTILE_ENDPOINT_PREF); + const response = await fetch(url, { credentials: "omit" }); + if (!response.ok) { + lazy.log.warn( + `Contile endpoint returned unexpected status: ${response.status}` + ); + if (response.status === 304 || response.status >= 500) { + return this._loadTilesFromCache(); + } + } + + const lastFetch = Math.round(Date.now() / 1000); + Services.prefs.setIntPref(CONTILE_CACHE_LAST_FETCH_PREF, lastFetch); + + // Contile returns 204 indicating there is no content at the moment. + // If this happens, it will clear `this._sites` reset the cached tiles + // to an empty array. + if (response.status === 204) { + if (this._sites.length) { + this._sites = []; + Services.prefs.setStringPref( + CONTILE_CACHE_PREF, + JSON.stringify(this._sites) + ); + return true; + } + return false; + } + const body = await response.json(); + + if (body?.sov) { + this._sov = JSON.parse(atob(body.sov)); + } + if (body?.tiles && Array.isArray(body.tiles)) { + const useAdditionalTiles = lazy.NimbusFeatures.newtab.getVariable( + NIMBUS_VARIABLE_ADDITIONAL_TILES + ); + + const maxNumFromContile = this._getMaxNumFromContile(); + + let { tiles } = body; + if ( + useAdditionalTiles !== undefined && + !useAdditionalTiles && + tiles.length > maxNumFromContile + ) { + tiles.length = maxNumFromContile; + } + tiles = this._filterBlockedSponsors(tiles); + if (tiles.length > maxNumFromContile) { + lazy.log.info("Remove unused links from Contile"); + tiles.length = maxNumFromContile; + } + this._sites = tiles; + Services.prefs.setStringPref( + CONTILE_CACHE_PREF, + JSON.stringify(this._sites) + ); + Services.prefs.setIntPref( + CONTILE_CACHE_VALID_FOR_PREF, + this._extractCacheValidFor( + response.headers.get("cache-control") || + response.headers.get("Cache-Control") + ) + ); + + return true; + } + } catch (error) { + lazy.log.warn( + `Failed to fetch data from Contile server: ${error.message}` + ); + return this._loadTilesFromCache(); + } + return false; + } +} + +class TopSitesFeed { + constructor() { + this._contile = new ContileIntegration(this); + this._tippyTopProvider = new TippyTopProvider(); + XPCOMUtils.defineLazyGetter( + this, + "_currentSearchHostname", + getShortURLForCurrentSearch + ); + this.dedupe = new Dedupe(this._dedupeKey); + this.frecentCache = new lazy.LinksCache( + lazy.NewTabUtils.activityStreamLinks, + "getTopSites", + CACHED_LINK_PROPS_TO_MIGRATE, + (oldOptions, newOptions) => + // Refresh if no old options or requesting more items + !(oldOptions.numItems >= newOptions.numItems) + ); + this.pinnedCache = new lazy.LinksCache( + lazy.NewTabUtils.pinnedLinks, + "links", + [...CACHED_LINK_PROPS_TO_MIGRATE, ...PINNED_FAVICON_PROPS_TO_MIGRATE] + ); + lazy.PageThumbs.addExpirationFilter(this); + this._nimbusChangeListener = this._nimbusChangeListener.bind(this); + } + + _nimbusChangeListener(event, reason) { + // The Nimbus API current doesn't specify the changed variable(s) in the + // listener callback, so we have to refresh unconditionally on every change + // of the `newtab` feature. It should be a manageable overhead given the + // current update cadence (6 hours) of Nimbus. + // + // Skip the experiment and rollout loading reasons since this feature has + // `isEarlyStartup` enabled, the feature variables are already available + // before the experiment or rollout loads. + if ( + !["feature-experiment-loaded", "feature-rollout-loaded"].includes(reason) + ) { + this._contile.refresh(); + } + } + + init() { + // If the feed was previously disabled PREFS_INITIAL_VALUES was never received + this._readDefaults({ isStartup: true }); + this._storage = this.store.dbStorage.getDbTable("sectionPrefs"); + this._contile.refresh(); + Services.obs.addObserver(this, "browser-search-engine-modified"); + Services.obs.addObserver(this, "browser-region-updated"); + Services.prefs.addObserver(REMOTE_SETTING_DEFAULTS_PREF, this); + Services.prefs.addObserver(DEFAULT_SITES_OVERRIDE_PREF, this); + Services.prefs.addObserver(DEFAULT_SITES_EXPERIMENTS_PREF_BRANCH, this); + lazy.NimbusFeatures.newtab.onUpdate(this._nimbusChangeListener); + } + + uninit() { + lazy.PageThumbs.removeExpirationFilter(this); + Services.obs.removeObserver(this, "browser-search-engine-modified"); + Services.obs.removeObserver(this, "browser-region-updated"); + Services.prefs.removeObserver(REMOTE_SETTING_DEFAULTS_PREF, this); + Services.prefs.removeObserver(DEFAULT_SITES_OVERRIDE_PREF, this); + Services.prefs.removeObserver(DEFAULT_SITES_EXPERIMENTS_PREF_BRANCH, this); + lazy.NimbusFeatures.newtab.offUpdate(this._nimbusChangeListener); + } + + observe(subj, topic, data) { + switch (topic) { + case "browser-search-engine-modified": + // We should update the current top sites if the search engine has been changed since + // the search engine that gets filtered out of top sites has changed. + // We also need to drop search shortcuts when their engine gets removed / hidden. + if ( + data === "engine-default" && + this.store.getState().Prefs.values[FILTER_DEFAULT_SEARCH_PREF] + ) { + delete this._currentSearchHostname; + this._currentSearchHostname = getShortURLForCurrentSearch(); + } + this.refresh({ broadcast: true }); + break; + case "browser-region-updated": + this._readDefaults(); + break; + case "nsPref:changed": + if ( + data === REMOTE_SETTING_DEFAULTS_PREF || + data === DEFAULT_SITES_OVERRIDE_PREF || + data.startsWith(DEFAULT_SITES_EXPERIMENTS_PREF_BRANCH) + ) { + this._readDefaults(); + } + break; + } + } + + _dedupeKey(site) { + return site && site.hostname; + } + + /** + * _readDefaults - sets DEFAULT_TOP_SITES + */ + async _readDefaults({ isStartup = false } = {}) { + this._useRemoteSetting = false; + + if (!Services.prefs.getBoolPref(REMOTE_SETTING_DEFAULTS_PREF)) { + this.refreshDefaults( + this.store.getState().Prefs.values[DEFAULT_SITES_PREF], + { isStartup } + ); + return; + } + + // Try using default top sites from enterprise policies or tests. The pref + // is locked when set via enterprise policy. Tests have no default sites + // unless they set them via this pref. + if ( + Services.prefs.prefIsLocked(DEFAULT_SITES_OVERRIDE_PREF) || + Cu.isInAutomation + ) { + let sites = Services.prefs.getStringPref(DEFAULT_SITES_OVERRIDE_PREF, ""); + this.refreshDefaults(sites, { isStartup }); + return; + } + + // Clear out the array of any previous defaults. + DEFAULT_TOP_SITES.length = 0; + + // Read defaults from contile. + const contileEnabled = lazy.NimbusFeatures.newtab.getVariable( + NIMBUS_VARIABLE_CONTILE_ENABLED + ); + let hasContileTiles = false; + if (contileEnabled) { + let sponsoredPosition = 1; + for (let site of this._contile.sites) { + let hostname = shortURL(site); + let link = { + isDefault: true, + url: site.url, + hostname, + sendAttributionRequest: false, + label: site.name, + show_sponsored_label: hostname !== "yandex", + sponsored_position: sponsoredPosition++, + sponsored_click_url: site.click_url, + sponsored_impression_url: site.impression_url, + sponsored_tile_id: site.id, + partner: SPONSORED_TILE_PARTNER_AMP, + }; + if (site.image_url && site.image_size >= MIN_FAVICON_SIZE) { + // Only use the image from Contile if it's hi-res, otherwise, fallback + // to the built-in favicons. + link.favicon = site.image_url; + link.faviconSize = site.image_size; + } + DEFAULT_TOP_SITES.push(link); + } + hasContileTiles = sponsoredPosition > 1; + } + + // Read defaults from remote settings. + this._useRemoteSetting = true; + let remoteSettingData = await this._getRemoteConfig(); + + const sponsoredBlocklist = JSON.parse( + Services.prefs.getStringPref(TOP_SITES_BLOCKED_SPONSORS_PREF, "[]") + ); + + for (let siteData of remoteSettingData) { + let hostname = shortURL(siteData); + // Drop default sites when Contile already provided a sponsored one with + // the same host name. + if ( + contileEnabled && + DEFAULT_TOP_SITES.findIndex(site => site.hostname === hostname) > -1 + ) { + continue; + } + // Also drop those sponsored sites that were blocked by the user before + // with the same hostname. + if ( + siteData.sponsored_position && + sponsoredBlocklist.includes(hostname) + ) { + continue; + } + let link = { + isDefault: true, + url: siteData.url, + hostname, + sendAttributionRequest: !!siteData.send_attribution_request, + }; + if (siteData.url_urlbar_override) { + link.url_urlbar = siteData.url_urlbar_override; + } + if (siteData.title) { + link.label = siteData.title; + } + if (siteData.search_shortcut) { + link = await this.topSiteToSearchTopSite(link); + } else if (siteData.sponsored_position) { + if (contileEnabled && hasContileTiles) { + continue; + } + const { + sponsored_position, + sponsored_tile_id, + sponsored_impression_url, + sponsored_click_url, + } = siteData; + link = { + sponsored_position, + sponsored_tile_id, + sponsored_impression_url, + sponsored_click_url, + show_sponsored_label: link.hostname !== "yandex", + ...link, + }; + } + DEFAULT_TOP_SITES.push(link); + } + + this.refresh({ broadcast: true, isStartup }); + } + + refreshDefaults(sites, { isStartup = false } = {}) { + // Clear out the array of any previous defaults + DEFAULT_TOP_SITES.length = 0; + + // Add default sites if any based on the pref + if (sites) { + for (const url of sites.split(",")) { + const site = { + isDefault: true, + url, + }; + site.hostname = shortURL(site); + DEFAULT_TOP_SITES.push(site); + } + } + + this.refresh({ broadcast: true, isStartup }); + } + + async _getRemoteConfig(firstTime = true) { + if (!this._remoteConfig) { + this._remoteConfig = await lazy.RemoteSettings("top-sites"); + this._remoteConfig.on("sync", () => { + this._readDefaults(); + }); + } + + let result = []; + let failed = false; + try { + result = await this._remoteConfig.get(); + } catch (ex) { + console.error(ex); + failed = true; + } + if (!result.length) { + console.error("Received empty top sites configuration!"); + failed = true; + } + // If we failed, or the result is empty, try loading from the local dump. + if (firstTime && failed) { + await this._remoteConfig.db.clear(); + // Now call this again. + return this._getRemoteConfig(false); + } + + // Sort sites based on the "order" attribute. + result.sort((a, b) => a.order - b.order); + + result = result.filter(topsite => { + // Filter by region. + if (topsite.exclude_regions?.includes(lazy.Region.home)) { + return false; + } + if ( + topsite.include_regions?.length && + !topsite.include_regions.includes(lazy.Region.home) + ) { + return false; + } + + // Filter by locale. + if (topsite.exclude_locales?.includes(Services.locale.appLocaleAsBCP47)) { + return false; + } + if ( + topsite.include_locales?.length && + !topsite.include_locales.includes(Services.locale.appLocaleAsBCP47) + ) { + return false; + } + + // Filter by experiment. + // Exclude this top site if any of the specified experiments are running. + if ( + topsite.exclude_experiments?.some(experimentID => + Services.prefs.getBoolPref( + DEFAULT_SITES_EXPERIMENTS_PREF_BRANCH + experimentID, + false + ) + ) + ) { + return false; + } + // Exclude this top site if none of the specified experiments are running. + if ( + topsite.include_experiments?.length && + topsite.include_experiments.every( + experimentID => + !Services.prefs.getBoolPref( + DEFAULT_SITES_EXPERIMENTS_PREF_BRANCH + experimentID, + false + ) + ) + ) { + return false; + } + + return true; + }); + + return result; + } + + filterForThumbnailExpiration(callback) { + const { rows } = this.store.getState().TopSites; + callback( + rows.reduce((acc, site) => { + acc.push(site.url); + if (site.customScreenshotURL) { + acc.push(site.customScreenshotURL); + } + return acc; + }, []) + ); + } + + /** + * shouldFilterSearchTile - is default filtering enabled and does a given hostname match the user's default search engine? + * + * @param {string} hostname a top site hostname, such as "amazon" or "foo" + * @returns {bool} + */ + shouldFilterSearchTile(hostname) { + if ( + this.store.getState().Prefs.values[FILTER_DEFAULT_SEARCH_PREF] && + (SEARCH_FILTERS.includes(hostname) || + hostname === this._currentSearchHostname) + ) { + return true; + } + return false; + } + + /** + * _maybeInsertSearchShortcuts - if the search shortcuts experiment is running, + * insert search shortcuts if needed + * @param {Array} plainPinnedSites (from the pinnedSitesCache) + * @returns {Boolean} Did we insert any search shortcuts? + */ + async _maybeInsertSearchShortcuts(plainPinnedSites) { + // Only insert shortcuts if the experiment is running + if (this.store.getState().Prefs.values[SEARCH_SHORTCUTS_EXPERIMENT]) { + // We don't want to insert shortcuts we've previously inserted + const prevInsertedShortcuts = this.store + .getState() + .Prefs.values[SEARCH_SHORTCUTS_HAVE_PINNED_PREF].split(",") + .filter(s => s); // Filter out empty strings + const newInsertedShortcuts = []; + + let shouldPin = this._useRemoteSetting + ? DEFAULT_TOP_SITES.filter(s => s.searchTopSite).map(s => s.hostname) + : this.store + .getState() + .Prefs.values[SEARCH_SHORTCUTS_SEARCH_ENGINES_PREF].split(","); + shouldPin = shouldPin + .map(getSearchProvider) + .filter(s => s && s.shortURL !== this._currentSearchHostname); + + // If we've previously inserted all search shortcuts return early + if ( + shouldPin.every(shortcut => + prevInsertedShortcuts.includes(shortcut.shortURL) + ) + ) { + return false; + } + + const numberOfSlots = + this.store.getState().Prefs.values[ROWS_PREF] * + TOP_SITES_MAX_SITES_PER_ROW; + + // The plainPinnedSites array is populated with pinned sites at their + // respective indices, and null everywhere else, but is not always the + // right length + const emptySlots = Math.max(numberOfSlots - plainPinnedSites.length, 0); + const pinnedSites = [...plainPinnedSites].concat( + Array(emptySlots).fill(null) + ); + + const tryToInsertSearchShortcut = async shortcut => { + const nextAvailable = pinnedSites.indexOf(null); + // Only add a search shortcut if the site isn't already pinned, we + // haven't previously inserted it, there's space to pin it, and the + // search engine is available in Firefox + if ( + !pinnedSites.find(s => s && shortURL(s) === shortcut.shortURL) && + !prevInsertedShortcuts.includes(shortcut.shortURL) && + nextAvailable > -1 && + (await checkHasSearchEngine(shortcut.keyword)) + ) { + const site = await this.topSiteToSearchTopSite({ url: shortcut.url }); + this._pinSiteAt(site, nextAvailable); + pinnedSites[nextAvailable] = site; + newInsertedShortcuts.push(shortcut.shortURL); + } + }; + + for (let shortcut of shouldPin) { + await tryToInsertSearchShortcut(shortcut); + } + + if (newInsertedShortcuts.length) { + this.store.dispatch( + ac.SetPref( + SEARCH_SHORTCUTS_HAVE_PINNED_PREF, + prevInsertedShortcuts.concat(newInsertedShortcuts).join(",") + ) + ); + return true; + } + } + + return false; + } + + /** + * Fetch topsites spocs from the DiscoveryStream feed. + * + * @returns {Array} An array of sponsored tile objects. + */ + fetchDiscoveryStreamSpocs() { + let sponsored = []; + const { DiscoveryStream } = this.store.getState(); + if (DiscoveryStream) { + const discoveryStreamSpocs = + DiscoveryStream.spocs.data["sponsored-topsites"]?.items || []; + // Find the first component of a type and remove it from layout + const findSponsoredTopsitesPositions = name => { + for (const row of DiscoveryStream.layout) { + for (const component of row.components) { + if (component.placement?.name === name) { + return component.spocs.positions; + } + } + } + return null; + }; + + // Get positions from layout for now. This could be improved if we store position data in state. + const discoveryStreamSpocPositions = + findSponsoredTopsitesPositions("sponsored-topsites"); + + if (discoveryStreamSpocPositions?.length) { + function reformatImageURL(url, width, height) { + // Change the image URL to request a size tailored for the parent container width + // Also: force JPEG, quality 60, no upscaling, no EXIF data + // Uses Thumbor: https://thumbor.readthedocs.io/en/latest/usage.html + // For now we wrap this in single quotes because this is being used in a url() css rule, and otherwise would cause a parsing error. + return `'https://img-getpocket.cdn.mozilla.net/${width}x${height}/filters:format(jpeg):quality(60):no_upscale():strip_exif()/${encodeURIComponent( + url + )}'`; + } + + // We need to loop through potential spocs and set their positions. + // If we run out of spocs or positions, we stop. + // First, we need to know which array is shortest. This is our exit condition. + const minLength = Math.min( + discoveryStreamSpocPositions.length, + discoveryStreamSpocs.length + ); + // Loop until we run out of spocs or positions. + for (let i = 0; i < minLength; i++) { + const positionIndex = discoveryStreamSpocPositions[i].index; + const spoc = discoveryStreamSpocs[i]; + const link = { + favicon: reformatImageURL(spoc.raw_image_src, 96, 96), + faviconSize: 96, + type: "SPOC", + label: spoc.title || spoc.sponsor, + title: spoc.title || spoc.sponsor, + url: spoc.url, + flightId: spoc.flight_id, + id: spoc.id, + guid: spoc.id, + shim: spoc.shim, + // For now we are assuming position based on intended position. + // Actual position can shift based on other content. + // We send the intended position in the ping. + pos: positionIndex, + // Set this so that SPOC topsites won't be shown in the URL bar. + // See Bug 1822027. Note that `sponsored_position` is 1-based. + sponsored_position: positionIndex + 1, + // This is used for topsites deduping. + hostname: shortURL({ url: spoc.url }), + partner: SPONSORED_TILE_PARTNER_MOZ_SALES, + }; + sponsored.push(link); + } + } + } + return sponsored; + } + + // eslint-disable-next-line max-statements + async getLinksWithDefaults(isStartup = false) { + const prefValues = this.store.getState().Prefs.values; + const numItems = prefValues[ROWS_PREF] * TOP_SITES_MAX_SITES_PER_ROW; + const searchShortcutsExperiment = prefValues[SEARCH_SHORTCUTS_EXPERIMENT]; + // We must wait for search services to initialize in order to access default + // search engine properties without triggering a synchronous initialization + await Services.search.init(); + + // Get all frecent sites from history. + let frecent = []; + const cache = await this.frecentCache.request({ + // We need to overquery due to the top 5 alexa search + default search possibly being removed + numItems: numItems + SEARCH_FILTERS.length + 1, + topsiteFrecency: FRECENCY_THRESHOLD, + }); + for (let link of cache) { + const hostname = shortURL(link); + if (!this.shouldFilterSearchTile(hostname)) { + frecent.push({ + ...(searchShortcutsExperiment + ? await this.topSiteToSearchTopSite(link) + : link), + hostname, + }); + } + } + + // Get defaults. + let contileSponsored = []; + let notBlockedDefaultSites = []; + for (let link of DEFAULT_TOP_SITES) { + // For sponsored Yandex links, default filtering is reversed: we only + // show them if Yandex is the default search engine. + if (link.sponsored_position && link.hostname === "yandex") { + if (link.hostname !== this._currentSearchHostname) { + continue; + } + } else if (this.shouldFilterSearchTile(link.hostname)) { + continue; + } + // Drop blocked default sites. + if ( + lazy.NewTabUtils.blockedLinks.isBlocked({ + url: link.url, + }) + ) { + continue; + } + // If we've previously blocked a search shortcut, remove the default top site + // that matches the hostname + const searchProvider = getSearchProvider(shortURL(link)); + if ( + searchProvider && + lazy.NewTabUtils.blockedLinks.isBlocked({ url: searchProvider.url }) + ) { + continue; + } + if (link.sponsored_position) { + if (!prefValues[SHOW_SPONSORED_PREF]) { + continue; + } + contileSponsored[link.sponsored_position - 1] = link; + + // Unpin search shortcut if present for the sponsored link to be shown + // instead. + this._unpinSearchShortcut(link.hostname); + } else { + notBlockedDefaultSites.push( + searchShortcutsExperiment + ? await this.topSiteToSearchTopSite(link) + : link + ); + } + } + + const discoverySponsored = this.fetchDiscoveryStreamSpocs(); + + const sponsored = await this._mergeSponsoredLinks({ + [SPONSORED_TILE_PARTNER_AMP]: contileSponsored, + [SPONSORED_TILE_PARTNER_MOZ_SALES]: discoverySponsored, + }); + + this._maybeCapSponsoredLinks(sponsored); + + // Get pinned links augmented with desired properties + let plainPinned = await this.pinnedCache.request(); + + // Insert search shortcuts if we need to. + // _maybeInsertSearchShortcuts returns true if any search shortcuts are + // inserted, meaning we need to expire and refresh the pinnedCache + if (await this._maybeInsertSearchShortcuts(plainPinned)) { + this.pinnedCache.expire(); + plainPinned = await this.pinnedCache.request(); + } + + const pinned = await Promise.all( + plainPinned.map(async link => { + if (!link) { + return link; + } + + // Drop pinned search shortcuts when their engine has been removed / hidden. + if (link.searchTopSite) { + const searchProvider = getSearchProvider(shortURL(link)); + if ( + !searchProvider || + !(await checkHasSearchEngine(searchProvider.keyword)) + ) { + return null; + } + } + + // Copy all properties from a frecent link and add more + const finder = other => other.url === link.url; + + // Remove frecent link's screenshot if pinned link has a custom one + const frecentSite = frecent.find(finder); + if (frecentSite && link.customScreenshotURL) { + delete frecentSite.screenshot; + } + // If the link is a frecent site, do not copy over 'isDefault', else check + // if the site is a default site + const copy = Object.assign( + {}, + frecentSite || { isDefault: !!notBlockedDefaultSites.find(finder) }, + link, + { hostname: shortURL(link) }, + { searchTopSite: !!link.searchTopSite } + ); + + // Add in favicons if we don't already have it + if (!copy.favicon) { + try { + lazy.NewTabUtils.activityStreamProvider._faviconBytesToDataURI( + await lazy.NewTabUtils.activityStreamProvider._addFavicons([copy]) + ); + + for (const prop of PINNED_FAVICON_PROPS_TO_MIGRATE) { + copy.__sharedCache.updateLink(prop, copy[prop]); + } + } catch (e) { + // Some issue with favicon, so just continue without one + } + } + + return copy; + }) + ); + + // Remove any duplicates from frecent and default sites + const [, dedupedSponsored, dedupedFrecent, dedupedDefaults] = + this.dedupe.group(pinned, sponsored, frecent, notBlockedDefaultSites); + const dedupedUnpinned = [...dedupedFrecent, ...dedupedDefaults]; + + // Remove adult sites if we need to + const checkedAdult = lazy.FilterAdult.filter(dedupedUnpinned); + + // Insert the original pinned sites into the deduped frecent and defaults. + let withPinned = insertPinned(checkedAdult, pinned); + // Insert sponsored sites at their desired position. + dedupedSponsored.forEach(link => { + if (!link) { + return; + } + let index = link.sponsored_position - 1; + if (index >= withPinned.length) { + withPinned[index] = link; + } else if (withPinned[index]?.sponsored_position) { + // We currently want DiscoveryStream spocs to replace existing spocs. + withPinned[index] = link; + } else { + withPinned.splice(index, 0, link); + } + }); + + // Remove excess items after we inserted sponsored ones. + withPinned = withPinned.slice(0, numItems); + + // Now, get a tippy top icon, a rich icon, or screenshot for every item + for (const link of withPinned) { + if (link) { + // If there is a custom screenshot this is the only image we display + if (link.customScreenshotURL) { + this._fetchScreenshot(link, link.customScreenshotURL, isStartup); + } else if (link.searchTopSite && !link.isDefault) { + await this._attachTippyTopIconForSearchShortcut(link, link.label); + } else { + this._fetchIcon(link, isStartup); + } + + // Remove internal properties that might be updated after dispatch + delete link.__sharedCache; + + // Indicate that these links should get a frecency bonus when clicked + link.typedBonus = true; + } + } + + this._linksWithDefaults = withPinned; + + return withPinned; + } + + /** + * Cap sponsored links if they're more than the specified maximum. + * + * @param {Array} links An array of sponsored links. Capping will be performed in-place. + */ + _maybeCapSponsoredLinks(links) { + // Set maximum sponsored top sites + const maxSponsored = + lazy.NimbusFeatures.pocketNewtab.getVariable( + NIMBUS_VARIABLE_MAX_SPONSORED + ) ?? MAX_NUM_SPONSORED; + if (links.length > maxSponsored) { + links.length = maxSponsored; + } + } + + /** + * Merge sponsored links from all the partners using SOV if present. + * For each tile position, the user is assigned to one partner via stable sampling. + * If the chosen partner doesn't have a tile to serve, another tile from a different + * partner is used as the replacement. + * + * @param {Object} sponsoredLinks An object with sponsored links from all the partners. + * @returns {Array} An array of merged sponsored links. + */ + async _mergeSponsoredLinks(sponsoredLinks) { + if ( + !this._contile.sov || + !lazy.NimbusFeatures.pocketNewtab.getVariable( + NIMBUS_VARIABLE_CONTILE_SOV_ENABLED + ) + ) { + return Object.values(sponsoredLinks).flat(); + } + + const sampleInput = `${lazy.contextId}-${this._contile.sov.name}`; + let sponsored = []; + + for (const allocation of this._contile.sov.allocations) { + let link = null; + let chosenPartner = null; + const ratios = allocation.allocation.map(alloc => alloc.percentage); + if (ratios.length) { + const index = await lazy.Sampling.ratioSample(sampleInput, ratios); + chosenPartner = allocation.allocation[index].partner; + // Unknown partners are allowed so that new parters can be added to Shepherd + // sooner without waiting for client changes. + link = sponsoredLinks[chosenPartner]?.shift(); + } + + if (!link) { + // If the chosen partner doesn't have a tile for this postion, choose any + // one from another group. For simplicity, we do _not_ do resampling here + // against the remaining partners. + for (const partner of SPONSORED_TILE_PARTNERS) { + if ( + partner === chosenPartner || + sponsoredLinks[partner].length === 0 + ) { + continue; + } + link = sponsoredLinks[partner].shift(); + break; + } + + if (!link) { + // No more links to be added across all the partners, just return. + return sponsored; + } + } + + // Update the position fields. Note that postion is also 1-based in SOV. + link.sponsored_position = allocation.position; + if (link.pos !== undefined) { + // Pocket `pos` is 0-based. + link.pos = allocation.position - 1; + } + sponsored.push(link); + } + // add the remaining contile sponsoredLinks when nimbus variable present + if ( + lazy.NimbusFeatures.pocketNewtab.getVariable( + NIMBUS_VARIABLE_CONTILE_MAX_NUM_SPONSORED + ) + ) { + return sponsored.concat(sponsoredLinks[SPONSORED_TILE_PARTNER_AMP]); + } + + return sponsored; + } + + /** + * Attach TippyTop icon to the given search shortcut + * + * Note that it queries the search form URL from search service For Yandex, + * and uses it to choose the best icon for its shortcut variants. + * + * @param {Object} link A link object with a `url` property + * @param {string} keyword Search keyword + */ + async _attachTippyTopIconForSearchShortcut(link, keyword) { + if ( + ["@\u044F\u043D\u0434\u0435\u043A\u0441", "@yandex"].includes(keyword) + ) { + let site = { url: link.url }; + site.url = (await getSearchFormURL(keyword)) || site.url; + this._tippyTopProvider.processSite(site); + link.tippyTopIcon = site.tippyTopIcon; + link.smallFavicon = site.smallFavicon; + link.backgroundColor = site.backgroundColor; + } else { + this._tippyTopProvider.processSite(link); + } + } + + /** + * Refresh the top sites data for content. + * @param {bool} options.broadcast Should the update be broadcasted. + * @param {bool} options.isStartup Being called while TopSitesFeed is initting. + */ + async refresh(options = {}) { + if (!this._startedUp && !options.isStartup) { + // Initial refresh still pending. + return; + } + this._startedUp = true; + + if (!this._tippyTopProvider.initialized) { + await this._tippyTopProvider.init(); + } + + const links = await this.getLinksWithDefaults({ + isStartup: options.isStartup, + }); + const newAction = { type: at.TOP_SITES_UPDATED, data: { links } }; + let storedPrefs; + try { + storedPrefs = (await this._storage.get(SECTION_ID)) || {}; + } catch (e) { + storedPrefs = {}; + console.error("Problem getting stored prefs for TopSites"); + } + newAction.data.pref = getDefaultOptions(storedPrefs); + + if (options.isStartup) { + newAction.meta = { + isStartup: true, + }; + } + + if (options.broadcast) { + // Broadcast an update to all open content pages + this.store.dispatch(ac.BroadcastToContent(newAction)); + } else { + // Don't broadcast only update the state and update the preloaded tab. + this.store.dispatch(ac.AlsoToPreloaded(newAction)); + } + } + + async updateCustomSearchShortcuts(isStartup = false) { + if (!this.store.getState().Prefs.values[SEARCH_SHORTCUTS_EXPERIMENT]) { + return; + } + + if (!this._tippyTopProvider.initialized) { + await this._tippyTopProvider.init(); + } + + // Populate the state with available search shortcuts + let searchShortcuts = []; + for (const engine of await Services.search.getAppProvidedEngines()) { + const shortcut = CUSTOM_SEARCH_SHORTCUTS.find(s => + engine.aliases.includes(s.keyword) + ); + if (shortcut) { + let clone = { ...shortcut }; + await this._attachTippyTopIconForSearchShortcut(clone, clone.keyword); + searchShortcuts.push(clone); + } + } + + this.store.dispatch( + ac.BroadcastToContent({ + type: at.UPDATE_SEARCH_SHORTCUTS, + data: { searchShortcuts }, + meta: { + isStartup, + }, + }) + ); + } + + async topSiteToSearchTopSite(site) { + const searchProvider = getSearchProvider(shortURL(site)); + if ( + !searchProvider || + !(await checkHasSearchEngine(searchProvider.keyword)) + ) { + return site; + } + return { + ...site, + searchTopSite: true, + label: searchProvider.keyword, + }; + } + + /** + * Get an image for the link preferring tippy top, rich favicon, screenshots. + */ + async _fetchIcon(link, isStartup = false) { + // Nothing to do if we already have a rich icon from the page + if (link.favicon && link.faviconSize >= MIN_FAVICON_SIZE) { + return; + } + + // Nothing more to do if we can use a default tippy top icon + this._tippyTopProvider.processSite(link); + if (link.tippyTopIcon) { + return; + } + + // Make a request for a better icon + this._requestRichIcon(link.url); + + // Also request a screenshot if we don't have one yet + await this._fetchScreenshot(link, link.url, isStartup); + } + + /** + * Fetch, cache and broadcast a screenshot for a specific topsite. + * @param link cached topsite object + * @param url where to fetch the image from + * @param isStartup Whether the screenshot is fetched while initting TopSitesFeed. + */ + async _fetchScreenshot(link, url, isStartup = false) { + // We shouldn't bother caching screenshots if they won't be shown. + if ( + link.screenshot || + !this.store.getState().Prefs.values[SHOWN_ON_NEWTAB_PREF] + ) { + return; + } + await lazy.Screenshots.maybeCacheScreenshot( + link, + url, + "screenshot", + screenshot => + this.store.dispatch( + ac.BroadcastToContent({ + data: { screenshot, url: link.url }, + type: at.SCREENSHOT_UPDATED, + meta: { + isStartup, + }, + }) + ) + ); + } + + /** + * Dispatch screenshot preview to target or notify if request failed. + * @param customScreenshotURL {string} The URL used to capture the screenshot + * @param target {string} Id of content process where to dispatch the result + */ + async getScreenshotPreview(url, target) { + const preview = (await lazy.Screenshots.getScreenshotForURL(url)) || ""; + this.store.dispatch( + ac.OnlyToOneContent( + { + data: { url, preview }, + type: at.PREVIEW_RESPONSE, + }, + target + ) + ); + } + + _requestRichIcon(url) { + this.store.dispatch({ + type: at.RICH_ICON_MISSING, + data: { url }, + }); + } + + updateSectionPrefs(collapsed) { + this.store.dispatch( + ac.BroadcastToContent({ + type: at.TOP_SITES_PREFS_UPDATED, + data: { pref: collapsed }, + }) + ); + } + + /** + * Inform others that top sites data has been updated due to pinned changes. + */ + _broadcastPinnedSitesUpdated() { + // Pinned data changed, so make sure we get latest + this.pinnedCache.expire(); + + // Refresh to update pinned sites with screenshots, trigger deduping, etc. + this.refresh({ broadcast: true }); + } + + /** + * Pin a site at a specific position saving only the desired keys. + * @param customScreenshotURL {string} User set URL of preview image for site + * @param label {string} User set string of custom site name + */ + async _pinSiteAt({ customScreenshotURL, label, url, searchTopSite }, index) { + const toPin = { url }; + if (label) { + toPin.label = label; + } + if (customScreenshotURL) { + toPin.customScreenshotURL = customScreenshotURL; + } + if (searchTopSite) { + toPin.searchTopSite = searchTopSite; + } + lazy.NewTabUtils.pinnedLinks.pin(toPin, index); + + await this._clearLinkCustomScreenshot({ customScreenshotURL, url }); + } + + async _clearLinkCustomScreenshot(site) { + // If screenshot url changed or was removed we need to update the cached link obj + if (site.customScreenshotURL !== undefined) { + const pinned = await this.pinnedCache.request(); + const link = pinned.find(pin => pin && pin.url === site.url); + if (link && link.customScreenshotURL !== site.customScreenshotURL) { + link.__sharedCache.updateLink("screenshot", undefined); + } + } + } + + /** + * Handle a pin action of a site to a position. + */ + async pin(action) { + let { site, index } = action.data; + index = this._adjustPinIndexForSponsoredLinks(site, index); + // If valid index provided, pin at that position + if (index >= 0) { + await this._pinSiteAt(site, index); + this._broadcastPinnedSitesUpdated(); + } else { + // Bug 1458658. If the top site is being pinned from an 'Add a Top Site' option, + // then we want to make sure to unblock that link if it has previously been + // blocked. We know if the site has been added because the index will be -1. + if (index === -1) { + lazy.NewTabUtils.blockedLinks.unblock({ url: site.url }); + this.frecentCache.expire(); + } + this.insert(action); + } + } + + /** + * Handle an unpin action of a site. + */ + unpin(action) { + const { site } = action.data; + lazy.NewTabUtils.pinnedLinks.unpin(site); + this._broadcastPinnedSitesUpdated(); + } + + unpinAllSearchShortcuts() { + Services.prefs.clearUserPref( + `browser.newtabpage.activity-stream.${SEARCH_SHORTCUTS_HAVE_PINNED_PREF}` + ); + for (let pinnedLink of lazy.NewTabUtils.pinnedLinks.links) { + if (pinnedLink && pinnedLink.searchTopSite) { + lazy.NewTabUtils.pinnedLinks.unpin(pinnedLink); + } + } + this.pinnedCache.expire(); + } + + _unpinSearchShortcut(vendor) { + for (let pinnedLink of lazy.NewTabUtils.pinnedLinks.links) { + if ( + pinnedLink && + pinnedLink.searchTopSite && + shortURL(pinnedLink) === vendor + ) { + lazy.NewTabUtils.pinnedLinks.unpin(pinnedLink); + this.pinnedCache.expire(); + + const prevInsertedShortcuts = this.store + .getState() + .Prefs.values[SEARCH_SHORTCUTS_HAVE_PINNED_PREF].split(","); + this.store.dispatch( + ac.SetPref( + SEARCH_SHORTCUTS_HAVE_PINNED_PREF, + prevInsertedShortcuts.filter(s => s !== vendor).join(",") + ) + ); + break; + } + } + } + + /** + * Reduces the given pinning index by the number of preceding sponsored + * sites, to accomodate for sponsored sites pushing pinned ones to the side, + * effectively increasing their index again. + */ + _adjustPinIndexForSponsoredLinks(site, index) { + if (!this._linksWithDefaults) { + return index; + } + // Adjust insertion index for sponsored sites since their position is + // fixed. + let adjustedIndex = index; + for (let i = 0; i < index; i++) { + const link = this._linksWithDefaults[i]; + if ( + link && + link.sponsored_position && + this._linksWithDefaults[i]?.url !== site.url + ) { + adjustedIndex--; + } + } + return adjustedIndex; + } + + /** + * Insert a site to pin at a position shifting over any other pinned sites. + */ + _insertPin(site, originalIndex, draggedFromIndex) { + let index = this._adjustPinIndexForSponsoredLinks(site, originalIndex); + + // Don't insert any pins past the end of the visible top sites. Otherwise, + // we can end up with a bunch of pinned sites that can never be unpinned again + // from the UI. + const topSitesCount = + this.store.getState().Prefs.values[ROWS_PREF] * + TOP_SITES_MAX_SITES_PER_ROW; + if (index >= topSitesCount) { + return; + } + + let pinned = lazy.NewTabUtils.pinnedLinks.links; + if (!pinned[index]) { + this._pinSiteAt(site, index); + } else { + pinned[draggedFromIndex] = null; + // Find the hole to shift the pinned site(s) towards. We shift towards the + // hole left by the site being dragged. + let holeIndex = index; + const indexStep = index > draggedFromIndex ? -1 : 1; + while (pinned[holeIndex]) { + holeIndex += indexStep; + } + if (holeIndex >= topSitesCount || holeIndex < 0) { + // There are no holes, so we will effectively unpin the last slot and shifting + // towards it. This only happens when adding a new top site to an already + // fully pinned grid. + holeIndex = topSitesCount - 1; + } + + // Shift towards the hole. + const shiftingStep = holeIndex > index ? -1 : 1; + while (holeIndex !== index) { + const nextIndex = holeIndex + shiftingStep; + this._pinSiteAt(pinned[nextIndex], holeIndex); + holeIndex = nextIndex; + } + this._pinSiteAt(site, index); + } + } + + /** + * Handle an insert (drop/add) action of a site. + */ + async insert(action) { + let { index } = action.data; + // Treat invalid pin index values (e.g., -1, undefined) as insert in the first position + if (!(index > 0)) { + index = 0; + } + + // Inserting a top site pins it in the specified slot, pushing over any link already + // pinned in the slot (unless it's the last slot, then it replaces). + this._insertPin( + action.data.site, + index, + action.data.draggedFromIndex !== undefined + ? action.data.draggedFromIndex + : this.store.getState().Prefs.values[ROWS_PREF] * + TOP_SITES_MAX_SITES_PER_ROW + ); + + await this._clearLinkCustomScreenshot(action.data.site); + this._broadcastPinnedSitesUpdated(); + } + + updatePinnedSearchShortcuts({ addedShortcuts, deletedShortcuts }) { + // Unpin the deletedShortcuts. + deletedShortcuts.forEach(({ url }) => { + lazy.NewTabUtils.pinnedLinks.unpin({ url }); + }); + + // Pin the addedShortcuts. + const numberOfSlots = + this.store.getState().Prefs.values[ROWS_PREF] * + TOP_SITES_MAX_SITES_PER_ROW; + addedShortcuts.forEach(shortcut => { + // Find first hole in pinnedLinks. + let index = lazy.NewTabUtils.pinnedLinks.links.findIndex(link => !link); + if ( + index < 0 && + lazy.NewTabUtils.pinnedLinks.links.length + 1 < numberOfSlots + ) { + // pinnedLinks can have less slots than the total available. + index = lazy.NewTabUtils.pinnedLinks.links.length; + } + if (index >= 0) { + lazy.NewTabUtils.pinnedLinks.pin(shortcut, index); + } else { + // No slots available, we need to do an insert in first slot and push over other pinned links. + this._insertPin(shortcut, 0, numberOfSlots); + } + }); + + this._broadcastPinnedSitesUpdated(); + } + + onAction(action) { + switch (action.type) { + case at.INIT: + this.init(); + this.updateCustomSearchShortcuts(true /* isStartup */); + break; + case at.SYSTEM_TICK: + this.refresh({ broadcast: false }); + this._contile.periodicUpdate(); + break; + // All these actions mean we need new top sites + case at.PLACES_HISTORY_CLEARED: + case at.PLACES_LINKS_DELETED: + this.frecentCache.expire(); + this.refresh({ broadcast: true }); + break; + case at.PLACES_LINKS_CHANGED: + this.frecentCache.expire(); + this.refresh({ broadcast: false }); + break; + case at.PLACES_LINK_BLOCKED: + this.frecentCache.expire(); + this.pinnedCache.expire(); + this.refresh({ broadcast: true }); + break; + case at.PREF_CHANGED: + switch (action.data.name) { + case DEFAULT_SITES_PREF: + if (!this._useRemoteSetting) { + this.refreshDefaults(action.data.value); + } + break; + case ROWS_PREF: + case FILTER_DEFAULT_SEARCH_PREF: + case SEARCH_SHORTCUTS_SEARCH_ENGINES_PREF: + this.refresh({ broadcast: true }); + break; + case SHOW_SPONSORED_PREF: + if ( + lazy.NimbusFeatures.newtab.getVariable( + NIMBUS_VARIABLE_CONTILE_ENABLED + ) + ) { + this._contile.refresh(); + } else { + this.refresh({ broadcast: true }); + } + if (!action.data.value) { + this._contile._resetContileCachePrefs(); + } + + break; + case SEARCH_SHORTCUTS_EXPERIMENT: + if (action.data.value) { + this.updateCustomSearchShortcuts(); + } else { + this.unpinAllSearchShortcuts(); + } + this.refresh({ broadcast: true }); + } + break; + case at.UPDATE_SECTION_PREFS: + if (action.data.id === SECTION_ID) { + this.updateSectionPrefs(action.data.value); + } + break; + case at.PREFS_INITIAL_VALUES: + if (!this._useRemoteSetting) { + this.refreshDefaults(action.data[DEFAULT_SITES_PREF]); + } + break; + case at.TOP_SITES_PIN: + this.pin(action); + break; + case at.TOP_SITES_UNPIN: + this.unpin(action); + break; + case at.TOP_SITES_INSERT: + this.insert(action); + break; + case at.PREVIEW_REQUEST: + this.getScreenshotPreview(action.data.url, action.meta.fromTarget); + break; + case at.UPDATE_PINNED_SEARCH_SHORTCUTS: + this.updatePinnedSearchShortcuts(action.data); + break; + case at.DISCOVERY_STREAM_SPOCS_UPDATE: + // Refresh to update sponsored topsites. + this.refresh({ broadcast: true, isStartup: action.meta.isStartup }); + break; + case at.UNINIT: + this.uninit(); + break; + } + } +} + +const EXPORTED_SYMBOLS = [ + "TopSitesFeed", + "DEFAULT_TOP_SITES", + "ContileIntegration", +]; |