private static Context getContext() {
// Using the global application context is probably ok.
// The DisplayManager API observers all display updates, so in theory it should not matter
// which context is used to obtain it. If this turns out not to be true in practice, it's
// possible register from all context used though quite complex.
return ContextUtils.getApplicationContext();
}
private static void tryObtainingDataDirLockOrDie() {
StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
StrictMode.allowThreadDiskWrites();
try {
String dataPath = PathUtils.getDataDirectory(ContextUtils.getApplicationContext());
File lockFile = new File(dataPath, EXCLUSIVE_LOCK_FILE);
boolean success = false;
try {
// Note that the file is not closed intentionally.
RandomAccessFile file = new RandomAccessFile(lockFile, "rw");
sExclusiveFileLock = file.getChannel().tryLock();
success = sExclusiveFileLock != null;
} catch (IOException e) {
Log.w(TAG, "Failed to create lock file " + lockFile, e);
}
if (!success) {
Log.w(
TAG,
"The app may have another WebView opened in a separate process. "
+ "This is not recommended and may stop working in future versions.");
}
} finally {
StrictMode.setThreadPolicy(oldPolicy);
}
}
/**
* Enables the data reduction proxy, records uma, and shows a confirmation toast.
*
* @param isPrimaryButton Whether the primary infobar button was clicked.
* @param context An Android context.
*/
@CalledByNative
private static void accept() {
Context context = ContextUtils.getApplicationContext();
DataReductionProxyUma.dataReductionProxyUIAction(DataReductionProxyUma.ACTION_INFOBAR_ENABLED);
DataReductionProxySettings.getInstance().setDataReductionProxyEnabled(context, true);
Toast.makeText(
context, context.getString(R.string.data_reduction_enabled_toast), Toast.LENGTH_LONG)
.show();
}
/**
* Check the cached value to figure out if the feature is enabled. We have to use the cached value
* because native library may not yet been loaded.
*
* @return Whether the feature is enabled.
*/
private static boolean isEnabledInPrefs() {
// Will go away once the feature is enabled for everyone by default.
StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
try {
return ChromePreferenceManager.getInstance(ContextUtils.getApplicationContext())
.getCachedWebApkRuntimeEnabled();
} finally {
StrictMode.setThreadPolicy(oldPolicy);
}
}
/**
* Loads the native library, and performs basic static construction of objects needed to run
* webview in this process. Does not create threads; safe to call from zygote. Note: it is up to
* the caller to ensure this is only called once.
*/
public static void loadLibrary() {
Context appContext = ContextUtils.getApplicationContext();
PathUtils.setPrivateDataDirectorySuffix(PRIVATE_DATA_DIRECTORY_SUFFIX, appContext);
try {
LibraryLoader libraryLoader = LibraryLoader.get(LibraryProcessType.PROCESS_WEBVIEW);
libraryLoader.loadNow(appContext);
// Switch the command line implementation from Java to native.
// It's okay for the WebView to do this before initialization because we have
// setup the JNI bindings by this point.
libraryLoader.switchCommandLineForWebView();
} catch (ProcessInitException e) {
throw new RuntimeException("Cannot load WebView", e);
}
}
/**
* Once native is loaded we can consult the command-line (set via about:flags) and also finch
* state to see if we should enable WebAPKs.
*/
public static void cacheEnabledStateForNextLaunch() {
boolean wasEnabled = isEnabledInPrefs();
CommandLine instance = CommandLine.getInstance();
String experiment = FieldTrialList.findFullName(WEBAPK_DISABLE_EXPERIMENT_NAME);
boolean isEnabled =
(!WEBAPK_RUNTIME_DISABLED.equals(experiment)
&& instance.hasSwitch(ChromeSwitches.ENABLE_WEBAPK));
if (isEnabled != wasEnabled) {
Log.d(TAG, "WebApk setting changed (%s => %s)", wasEnabled, isEnabled);
ChromePreferenceManager.getInstance(ContextUtils.getApplicationContext())
.setCachedWebApkRuntimeEnabled(isEnabled);
}
}
/**
* Displays the download manager UI. Note the UI is different on tablets and on phones.
*
* @return Whether the UI was shown.
*/
public static boolean showDownloadManager(@Nullable Activity activity, @Nullable Tab tab) {
if (!isDownloadHomeEnabled()) return false;
// Figure out what tab was last being viewed by the user.
if (activity == null) activity = ApplicationStatus.getLastTrackedFocusedActivity();
if (tab == null && activity instanceof ChromeTabbedActivity) {
tab = ((ChromeTabbedActivity) activity).getActivityTab();
}
Context appContext = ContextUtils.getApplicationContext();
if (DeviceFormFactor.isTablet(appContext)) {
// Download Home shows up as a tab on tablets.
LoadUrlParams params = new LoadUrlParams(UrlConstants.DOWNLOADS_URL);
if (tab == null || !tab.isInitialized()) {
// Open a new tab, which pops Chrome into the foreground.
TabDelegate delegate = new TabDelegate(false);
delegate.createNewTab(params, TabLaunchType.FROM_CHROME_UI, null);
} else {
// Download Home shows up inside an existing tab, but only if the last Activity was
// the ChromeTabbedActivity.
tab.loadUrl(params);
// Bring Chrome to the foreground, if possible.
Intent intent = Tab.createBringTabToFrontIntent(tab.getId());
if (intent != null) {
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
IntentUtils.safeStartActivity(appContext, intent);
}
}
} else {
// Download Home shows up as a new Activity on phones.
Intent intent = new Intent();
intent.setClass(appContext, DownloadActivity.class);
if (tab != null) intent.putExtra(EXTRA_IS_OFF_THE_RECORD, tab.isIncognito());
if (activity == null) {
// Stands alone in its own task.
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
appContext.startActivity(intent);
} else {
// Sits on top of another Activity.
intent.putExtra(IntentHandler.EXTRA_PARENT_COMPONENT, activity.getComponentName());
activity.startActivity(intent);
}
}
return true;
}
@Override
public void activateContents() {
String startUrl = mActivity.getWebappInfo().uri().toString();
// Create an Intent that will be fired toward the WebappLauncherActivity, which in turn
// will fire an Intent to launch the correct WebappActivity. On L+ this could probably
// be changed to call AppTask.moveToFront(), but for backwards compatibility we relaunch
// it the hard way.
Intent intent = new Intent();
intent.setAction(WebappLauncherActivity.ACTION_START_WEBAPP);
intent.setPackage(mActivity.getPackageName());
mActivity.getWebappInfo().setWebappIntentExtras(intent);
intent.putExtra(ShortcutHelper.EXTRA_MAC, ShortcutHelper.getEncodedMac(mActivity, startUrl));
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
ContextUtils.getApplicationContext().startActivity(intent);
}
/**
* Creates an Intent that allows viewing the given file in an internal media viewer.
*
* @param fileUri URI pointing at the file, ideally in file:// form.
* @param shareUri URI pointing at the file, ideally in content:// form.
* @param mimeType MIME type of the file.
* @return Intent that can be fired to open the file.
*/
public static Intent getMediaViewerIntentForDownloadItem(
Uri fileUri, Uri shareUri, String mimeType) {
Context context = ContextUtils.getApplicationContext();
Intent viewIntent = createViewIntentForDownloadItem(fileUri, mimeType);
Bitmap closeIcon =
BitmapFactory.decodeResource(context.getResources(), R.drawable.ic_arrow_back_white_24dp);
Bitmap shareIcon =
BitmapFactory.decodeResource(context.getResources(), R.drawable.ic_share_white_24dp);
CustomTabsIntent.Builder builder = new CustomTabsIntent.Builder();
builder.setToolbarColor(Color.BLACK);
builder.setCloseButtonIcon(closeIcon);
builder.setShowTitle(true);
// Create a PendingIntent that can be used to view the file externally.
// TODO(dfalcantara): Check if this is problematic in multi-window mode, where two
// different viewers could be visible at the same time.
Intent chooserIntent = Intent.createChooser(viewIntent, null);
chooserIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
String openWithStr = context.getString(R.string.download_manager_open_with);
PendingIntent pendingViewIntent =
PendingIntent.getActivity(context, 0, chooserIntent, PendingIntent.FLAG_CANCEL_CURRENT);
builder.addMenuItem(openWithStr, pendingViewIntent);
// Create a PendingIntent that shares the file with external apps.
PendingIntent pendingShareIntent =
PendingIntent.getActivity(context, 0, createShareIntent(shareUri, mimeType), 0);
builder.setActionButton(shareIcon, context.getString(R.string.share), pendingShareIntent, true);
// Build up the Intent further.
Intent intent = builder.build().intent;
intent.setPackage(context.getPackageName());
intent.setData(fileUri);
intent.putExtra(CustomTabIntentDataProvider.EXTRA_IS_MEDIA_VIEWER, true);
intent.putExtra(Browser.EXTRA_APPLICATION_ID, context.getPackageName());
IntentHandler.addTrustedIntentExtras(intent, context);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setClass(context, CustomTabActivity.class);
return intent;
}
/**
* Returns a URI that points at the file.
*
* @param file File to get a URI for.
* @return URI that points at that file, either as a content:// URI or a file:// URI.
*/
public static Uri getUriForItem(File file) {
Uri uri = null;
// #getContentUriFromFile causes a disk read when it calls into FileProvider#getUriForFile.
// Obtaining a content URI is on the critical path for creating a share intent after the
// user taps on the share button, so even if we were to run this method on a background
// thread we would have to wait. As it depends on user-selected items, we cannot
// know/preload which URIs we need until the user presses share.
StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
try {
// Try to obtain a content:// URI, which is preferred to a file:// URI so that
// receiving apps don't attempt to determine the file's mime type (which often fails).
uri = ContentUriUtils.getContentUriFromFile(ContextUtils.getApplicationContext(), file);
} catch (IllegalArgumentException e) {
Log.e(TAG, "Could not create content uri: " + e);
}
StrictMode.setThreadPolicy(oldPolicy);
if (uri == null) uri = Uri.fromFile(file);
return uri;
}
private DeferredStartupHandler() {
mAppContext = ContextUtils.getApplicationContext();
mDeferredTasks = new LinkedList<>();
}
private DeferredStartupHandler() {
mAppContext = ContextUtils.getApplicationContext();
mLocaleManager = ((ChromeApplication) mAppContext).createLocaleManager();
}
/**
* Initializes a new {@link CastSessionImpl} instance.
*
* @param apiClient The Google Play Services client used to create the session.
* @param sessionId The session identifier to use with the Cast SDK.
* @param origin The origin of the frame requesting the route.
* @param tabId The id of the tab containing the frame requesting the route.
* @param isIncognito Whether the route is beging requested from an Incognito profile.
* @param source The {@link MediaSource} corresponding to this session.
* @param routeProvider The {@link CastMediaRouteProvider} instance managing this session.
*/
public CastSessionImpl(
GoogleApiClient apiClient,
String sessionId,
ApplicationMetadata metadata,
String applicationStatus,
CastDevice castDevice,
String origin,
int tabId,
boolean isIncognito,
MediaSource source,
CastMediaRouteProvider routeProvider) {
mSessionId = sessionId;
mRouteProvider = routeProvider;
mApiClient = apiClient;
mSource = source;
mApplicationMetadata = metadata;
mApplicationStatus = applicationStatus;
mCastDevice = castDevice;
mMessageHandler = mRouteProvider.getMessageHandler();
mMessageChannel = new CastMessagingChannel(this);
updateNamespaces();
final Context context = ContextUtils.getApplicationContext();
if (mNamespaces.contains(CastMessageHandler.MEDIA_NAMESPACE)) {
mMediaPlayer = new RemoteMediaPlayer();
mMediaPlayer.setOnStatusUpdatedListener(
new RemoteMediaPlayer.OnStatusUpdatedListener() {
@Override
public void onStatusUpdated() {
MediaStatus mediaStatus = mMediaPlayer.getMediaStatus();
if (mediaStatus == null) return;
int playerState = mediaStatus.getPlayerState();
if (playerState == MediaStatus.PLAYER_STATE_PAUSED
|| playerState == MediaStatus.PLAYER_STATE_PLAYING) {
mNotificationBuilder.setPaused(playerState != MediaStatus.PLAYER_STATE_PLAYING);
mNotificationBuilder.setActions(
MediaNotificationInfo.ACTION_STOP | MediaNotificationInfo.ACTION_PLAY_PAUSE);
} else {
mNotificationBuilder.setActions(MediaNotificationInfo.ACTION_STOP);
}
MediaNotificationManager.show(context, mNotificationBuilder.build());
}
});
mMediaPlayer.setOnMetadataUpdatedListener(
new RemoteMediaPlayer.OnMetadataUpdatedListener() {
@Override
public void onMetadataUpdated() {
setNotificationMetadata(mNotificationBuilder);
MediaNotificationManager.show(context, mNotificationBuilder.build());
}
});
}
Intent contentIntent = Tab.createBringTabToFrontIntent(tabId);
if (contentIntent != null) {
contentIntent.putExtra(
MediaNotificationUma.INTENT_EXTRA_NAME, MediaNotificationUma.SOURCE_PRESENTATION);
}
mNotificationBuilder =
new MediaNotificationInfo.Builder()
.setPaused(false)
.setOrigin(origin)
// TODO(avayvod): the same session might have more than one tab id. Should we track
// the last foreground alive tab and update the notification with it?
.setTabId(tabId)
.setPrivate(isIncognito)
.setActions(MediaNotificationInfo.ACTION_STOP)
.setContentIntent(contentIntent)
.setIcon(R.drawable.ic_notification_media_route)
.setDefaultLargeIcon(R.drawable.cast_playing_square)
.setId(R.id.presentation_notification)
.setListener(this);
setNotificationMetadata(mNotificationBuilder);
MediaNotificationManager.show(context, mNotificationBuilder.build());
}