| // Copyright 2020 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| package org.chromium.chrome.browser.app.flags; |
| |
| import android.text.TextUtils; |
| |
| import org.chromium.base.annotations.RemovableInRelease; |
| import org.chromium.chrome.browser.compositor.layouts.content.TabContentManager; |
| import org.chromium.chrome.browser.customtabs.CustomTabActivity; |
| import org.chromium.chrome.browser.firstrun.FirstRunUtils; |
| import org.chromium.chrome.browser.flags.CachedFeatureFlags; |
| import org.chromium.chrome.browser.flags.CachedFieldTrialParameter; |
| import org.chromium.chrome.browser.flags.ChromeFeatureList; |
| import org.chromium.chrome.browser.lens.LensFeature; |
| import org.chromium.chrome.browser.merchant_viewer.MerchantViewerConfig; |
| import org.chromium.chrome.browser.notifications.chime.ChimeFeatures; |
| import org.chromium.chrome.browser.page_annotations.PageAnnotationsServiceConfig; |
| import org.chromium.chrome.browser.paint_preview.StartupPaintPreviewHelper; |
| import org.chromium.chrome.browser.subscriptions.CommerceSubscriptionsServiceConfig; |
| import org.chromium.chrome.browser.tasks.ConditionalTabStripUtils; |
| import org.chromium.chrome.browser.tasks.ReturnToChromeExperimentsUtil; |
| import org.chromium.chrome.browser.tasks.tab_management.PriceTrackingUtilities; |
| import org.chromium.chrome.browser.tasks.tab_management.TabUiFeatureUtilities; |
| import org.chromium.chrome.features.start_surface.StartSurfaceConfiguration; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Caches the flags that Chrome might require before native is loaded in a later next run. |
| */ |
| public class ChromeCachedFlags { |
| private boolean mIsFinishedCachingNativeFlags; |
| |
| private static final ChromeCachedFlags INSTANCE = new ChromeCachedFlags(); |
| |
| /** |
| * A list of field trial parameters that will be cached when starting minimal browser mode. See |
| * {@link #cacheMinimalBrowserFlags()}. |
| */ |
| private static final List<CachedFieldTrialParameter> MINIMAL_BROWSER_FIELD_TRIALS = |
| new ArrayList<CachedFieldTrialParameter>() { |
| { |
| // This is used by CustomTabsConnection implementation, which does not |
| // necessarily start chrome. |
| add(CustomTabActivity.EXPERIMENTS_FOR_AGSA_PARAMS); |
| } |
| }; |
| |
| /** |
| * @return The {@link ChromeCachedFlags} singleton. |
| */ |
| public static ChromeCachedFlags getInstance() { |
| return INSTANCE; |
| } |
| |
| /** |
| * Caches flags that are needed by Activities that launch before the native library is loaded |
| * and stores them in SharedPreferences. Because this function is called during launch after the |
| * library has loaded, they won't affect the next launch until Chrome is restarted. |
| */ |
| public void cacheNativeFlags() { |
| if (mIsFinishedCachingNativeFlags) return; |
| FirstRunUtils.cacheFirstRunPrefs(); |
| |
| // Workaround for crbug.com/1223545: Do not use Arrays.asList(). |
| List<String> featuresToCache = new ArrayList<String>() { |
| { |
| add(ChromeFeatureList.ANDROID_PARTNER_CUSTOMIZATION_PHENOTYPE); |
| add(ChromeFeatureList.APP_MENU_MOBILE_SITE_OPTION); |
| add(ChromeFeatureList.APP_TO_WEB_ATTRIBUTION); |
| add(ChromeFeatureList.BOOKMARK_BOTTOM_SHEET); |
| add(ChromeFeatureList.CCT_INCOGNITO); |
| add(ChromeFeatureList.CCT_INCOGNITO_AVAILABLE_TO_THIRD_PARTY); |
| add(ChromeFeatureList.CCT_REMOVE_REMOTE_VIEW_IDS); |
| add(ChromeFeatureList.CLIPBOARD_SUGGESTION_CONTENT_HIDDEN); |
| add(ChromeFeatureList.CLOSE_TAB_SUGGESTIONS); |
| add(ChromeFeatureList.CRITICAL_PERSISTED_TAB_DATA); |
| add(ChromeFeatureList.COMMAND_LINE_ON_NON_ROOTED); |
| add(ChromeFeatureList.CONDITIONAL_TAB_STRIP_ANDROID); |
| add(ChromeFeatureList.DOWNLOADS_AUTO_RESUMPTION_NATIVE); |
| add(ChromeFeatureList.DYNAMIC_COLOR_ANDROID); |
| add(ChromeFeatureList.EARLY_LIBRARY_LOAD); |
| add(ChromeFeatureList.IMMERSIVE_UI_MODE); |
| add(ChromeFeatureList.INSTANT_START); |
| add(ChromeFeatureList.INTEREST_FEED_V2); |
| add(ChromeFeatureList.LENS_CAMERA_ASSISTED_SEARCH); |
| add(ChromeFeatureList.NEW_WINDOW_APP_MENU); |
| add(ChromeFeatureList.OFFLINE_MEASUREMENTS_BACKGROUND_TASK); |
| add(ChromeFeatureList.OPTIMIZATION_GUIDE_PUSH_NOTIFICATIONS); |
| add(ChromeFeatureList.PAINT_PREVIEW_DEMO); |
| add(ChromeFeatureList.PAINT_PREVIEW_SHOW_ON_STARTUP); |
| add(ChromeFeatureList.PRIORITIZE_BOOTSTRAP_TASKS); |
| add(ChromeFeatureList.READ_LATER); |
| add(ChromeFeatureList.START_SURFACE_ANDROID); |
| add(ChromeFeatureList.STORE_HOURS); |
| add(ChromeFeatureList.SWAP_PIXEL_FORMAT_TO_FIX_CONVERT_FROM_TRANSLUCENT); |
| add(ChromeFeatureList.TAB_GRID_LAYOUT_ANDROID); |
| add(ChromeFeatureList.TAB_GROUPS_ANDROID); |
| add(ChromeFeatureList.TAB_GROUPS_CONTINUATION_ANDROID); |
| add(ChromeFeatureList.TAB_TO_GTS_ANIMATION); |
| add(ChromeFeatureList.THEME_REFACTOR_ANDROID); |
| add(ChromeFeatureList.TOOLBAR_USE_HARDWARE_BITMAP_DRAW); |
| add(ChromeFeatureList.USE_CHIME_ANDROID_SDK); |
| } |
| }; |
| CachedFeatureFlags.cacheNativeFlags(featuresToCache); |
| CachedFeatureFlags.cacheAdditionalNativeFlags(); |
| |
| List<CachedFieldTrialParameter> fieldTrialsToCache = |
| new ArrayList<CachedFieldTrialParameter>() { |
| { |
| add(ChimeFeatures.ALWAYS_REGISTER); |
| add(ConditionalTabStripUtils.CONDITIONAL_TAB_STRIP_INFOBAR_LIMIT); |
| add(ConditionalTabStripUtils.CONDITIONAL_TAB_STRIP_INFOBAR_PERIOD); |
| add(ConditionalTabStripUtils.CONDITIONAL_TAB_STRIP_SESSION_TIME_MS); |
| add(LensFeature.DISABLE_LENS_CAMERA_ASSISTED_SEARCH_ON_INCOGNITO); |
| add(LensFeature.ENABLE_LENS_CAMERA_ASSISTED_SEARCH_ON_LOW_END_DEVICE); |
| add(LensFeature.ENABLE_LENS_CAMERA_ASSISTED_SEARCH_ON_TABLET); |
| add(LensFeature.SEARCH_BOX_START_VARIANT_LENS_CAMERA_ASSISTED_SEARCH); |
| add(LensFeature.MIN_AGSA_VERSION_LENS_CAMERA_ASSISTED_SEARCH); |
| add(MerchantViewerConfig.DEFAULT_TRUST_SIGNALS_MESSAGE_DELAY); |
| add(MerchantViewerConfig.TRUST_SIGNALS_MESSAGE_USE_RATING_BAR); |
| add(MerchantViewerConfig.TRUST_SIGNALS_MESSAGE_WINDOW_DURATION_SECONDS); |
| add(MerchantViewerConfig.TRUST_SIGNALS_SHEET_USE_PAGE_TITLE); |
| add(PageAnnotationsServiceConfig.PAGE_ANNOTATIONS_BASE_URL); |
| add(ReturnToChromeExperimentsUtil.TAB_SWITCHER_ON_RETURN_MS); |
| add(StartSurfaceConfiguration.HOME_BUTTON_ON_GRID_TAB_SWITCHER); |
| add(StartSurfaceConfiguration.NEW_SURFACE_FROM_HOME_BUTTON); |
| add(StartSurfaceConfiguration.OMNIBOX_FOCUSED_ON_NEW_TAB); |
| add(StartSurfaceConfiguration.SHOW_TABS_IN_MRU_ORDER); |
| add(StartSurfaceConfiguration.START_SURFACE_EXCLUDE_MV_TILES); |
| add(StartSurfaceConfiguration.START_SURFACE_HIDE_INCOGNITO_SWITCH_NO_TAB); |
| add(StartSurfaceConfiguration.START_SURFACE_LAST_ACTIVE_TAB_ONLY); |
| add(StartSurfaceConfiguration.START_SURFACE_OPEN_NTP_INSTEAD_OF_START); |
| add(StartSurfaceConfiguration.SHOW_NTP_TILES_ON_OMNIBOX); |
| add(StartSurfaceConfiguration.START_SURFACE_VARIATION); |
| add(StartSurfaceConfiguration.SUPPORT_ACCESSIBILITY); |
| add(StartupPaintPreviewHelper.ACCESSIBILITY_SUPPORT_PARAM); |
| add(CommerceSubscriptionsServiceConfig.STALE_TAB_LOWER_BOUND_SECONDS); |
| add(CommerceSubscriptionsServiceConfig.SUBSCRIPTIONS_SERVICE_BASE_URL); |
| add(PriceTrackingUtilities.ENABLE_PRICE_NOTIFICATION); |
| add(PriceTrackingUtilities.ENABLE_PRICE_TRACKING); |
| add(TabContentManager.ALLOW_TO_REFETCH_TAB_THUMBNAIL_VARIATION); |
| add(TabUiFeatureUtilities.ENABLE_LAUNCH_BUG_FIX); |
| add(TabUiFeatureUtilities.ENABLE_LAUNCH_POLISH); |
| add(TabUiFeatureUtilities.ENABLE_SEARCH_CHIP); |
| add(TabUiFeatureUtilities.ENABLE_SEARCH_CHIP_ADAPTIVE); |
| add(TabUiFeatureUtilities.ENABLE_TAB_GROUP_AUTO_CREATION); |
| add(TabUiFeatureUtilities.ZOOMING_MIN_MEMORY); |
| add(TabUiFeatureUtilities.ZOOMING_MIN_SDK); |
| add(TabUiFeatureUtilities.SKIP_SLOW_ZOOMING); |
| add(TabUiFeatureUtilities.TAB_GRID_LAYOUT_ANDROID_NEW_TAB_TILE); |
| add(TabUiFeatureUtilities.THUMBNAIL_ASPECT_RATIO); |
| } |
| }; |
| tryToCatchMissingParameters(fieldTrialsToCache); |
| CachedFeatureFlags.cacheFieldTrialParameters(fieldTrialsToCache); |
| |
| CachedFeatureFlags.onEndCheckpoint(); |
| mIsFinishedCachingNativeFlags = true; |
| } |
| |
| @RemovableInRelease |
| private void tryToCatchMissingParameters(List<CachedFieldTrialParameter> listed) { |
| // All instances of CachedFieldTrialParameter should be manually passed to |
| // CachedFeatureFlags.cacheFieldTrialParameters(). The following checking is a best-effort |
| // attempt to try to catch accidental omissions. It cannot replace the list because some |
| // instances might not be instantiated if the classes they belong to are not accessed yet. |
| List<String> omissions = new ArrayList<>(); |
| for (CachedFieldTrialParameter trial : CachedFieldTrialParameter.getAllInstances()) { |
| if (listed.contains(trial)) continue; |
| if (MINIMAL_BROWSER_FIELD_TRIALS.contains(trial)) continue; |
| omissions.add(trial.getFeatureName() + ":" + trial.getParameterName()); |
| } |
| assert omissions.isEmpty() |
| : "The following trials are not correctly cached: " |
| + TextUtils.join(", ", omissions); |
| } |
| |
| /** |
| * Caches flags that are enabled in minimal browser mode and must take effect on startup but |
| * are set via native code. This function needs to be called in minimal browser mode to mark |
| * these field trials as active, otherwise histogram data recorded in minimal browser mode |
| * won't be tagged with their corresponding field trial experiments. |
| */ |
| public void cacheMinimalBrowserFlags() { |
| CachedFeatureFlags.cacheMinimalBrowserFlagsTimeFromNativeTime(); |
| |
| // TODO(crbug.com/995355): Move other related flags from cacheNativeFlags() to here. |
| List<String> featuresToCache = new ArrayList<String>() { |
| { |
| add(ChromeFeatureList.EXPERIMENTS_FOR_AGSA); |
| add(ChromeFeatureList.SERVICE_MANAGER_FOR_DOWNLOAD); |
| add(ChromeFeatureList.SERVICE_MANAGER_FOR_BACKGROUND_PREFETCH); |
| } |
| }; |
| CachedFeatureFlags.cacheNativeFlags(featuresToCache); |
| |
| CachedFeatureFlags.cacheFieldTrialParameters(MINIMAL_BROWSER_FIELD_TRIALS); |
| } |
| } |
