Implement callback for current channel infos (990957db) · Commits · e / os / android_frameworks_base

media/java/android/media/tv/ITvInputManager.aidl

+1 −1

Original line number	Diff line number	Diff line
		@@ -89,7 +89,7 @@ interface ITvInputManager {
		void timeShiftSetPlaybackParams(in IBinder sessionToken, in PlaybackParams params, int userId);
		void timeShiftEnablePositionTracking(in IBinder sessionToken, boolean enable, int userId);

		List<TvChannelInfo> getTvCurrentChannelInfos(int userId);
		List<TvChannelInfo> getCurrentTvChannelInfos(int userId);

		// For the recording session
		void startRecording(in IBinder sessionToken, in Uri programUri, in Bundle params, int userId);

media/java/android/media/tv/ITvInputManagerCallback.aidl

+2 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@

		package android.media.tv;

		import android.media.tv.TvChannelInfo;
		import android.media.tv.TvInputInfo;

		/**
		@@ -28,4 +29,5 @@ oneway interface ITvInputManagerCallback {
		void onInputUpdated(in String inputId);
		void onInputStateChanged(in String inputId, int state);
		void onTvInputInfoUpdated(in TvInputInfo TvInputInfo);
		void onCurrentTvChannelInfosUpdated(in List<TvChannelInfo> currentTvChannelInfos);
		}

media/java/android/media/tv/TvInputManager.java

+25 −4

Original line number	Diff line number	Diff line
		@@ -899,6 +899,10 @@ public final class TvInputManager {
		*/
		public void onTvInputInfoUpdated(TvInputInfo inputInfo) {
		}

		/** @hide */
		public void onCurrentTvChannelInfosUpdated(List<TvChannelInfo> tvChannelInfos) {
		}
		}

		private static final class TvInputCallbackRecord {
		@@ -958,6 +962,16 @@ public final class TvInputManager {
		}
		});
		}

		public void postCurrentTvChannelInfosUpdated(
		final List<TvChannelInfo> currentTvChannelInfos) {
		mHandler.post(new Runnable() {
		@Override
		public void run() {
		mCallback.onCurrentTvChannelInfosUpdated(currentTvChannelInfos);
		}
		});
		}
		}

		/**
		@@ -1262,6 +1276,15 @@ public final class TvInputManager {
		}
		}
		}

		@Override
		public void onCurrentTvChannelInfosUpdated(List<TvChannelInfo> currentTvChannelInfos) {
		synchronized (mLock) {
		for (TvInputCallbackRecord record : mCallbackRecords) {
		record.postCurrentTvChannelInfosUpdated(currentTvChannelInfos);
		}
		}
		}
		};
		try {
		if (mService != null) {
		@@ -1955,11 +1978,9 @@ public final class TvInputManager {
		/**
		* @hide
		*/
		public List<TvChannelInfo> getTvCurrentChannelInfos() {
		// TODO: handle retuned() cases and add a method to TvInputCallback
		// TODO: unhide
		public List<TvChannelInfo> getCurrentTvChannelInfos() {
		try {
		return mService.getTvCurrentChannelInfos(mUserId);
		return mService.getCurrentTvChannelInfos(mUserId);
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}

services/core/java/com/android/server/tv/TvInputManagerService.java

+91 −62

Original line number	Diff line number	Diff line
		@@ -699,8 +699,8 @@ public final class TvInputManagerService extends SystemService {
		SessionState sessionState = null;
		try {
		sessionState = getSessionStateLocked(sessionToken, callingUid, userId);
		if (sessionState.session != null) {
		UserState userState = getOrCreateUserStateLocked(userId);
		if (sessionState.session != null) {
		if (sessionToken == userState.mainSessionToken) {
		setMainLocked(sessionToken, false, callingUid, userId);
		}
		@@ -709,6 +709,8 @@ public final class TvInputManagerService extends SystemService {
		}
		sessionState.isCurrent = false;
		sessionState.currentChannel = null;
		notifyCurrentChannelInfosUpdatedLocked(
		userState, getCurrentTvChannelInfosInternalLocked(userState));
		} catch (RemoteException \| SessionNotFoundException e) {
		Slog.e(TAG, "error in releaseSession", e);
		} finally {
		@@ -849,6 +851,22 @@ public final class TvInputManagerService extends SystemService {
		}
		}

		private void notifyCurrentChannelInfosUpdatedLocked(
		UserState userState, List<TvChannelInfo> infos) {
		if (DEBUG) {
		Slog.d(TAG, "notifyCurrentChannelInfosUpdatedLocked");
		}
		int n = userState.mCallbacks.beginBroadcast();
		for (int i = 0; i < n; ++i) {
		try {
		userState.mCallbacks.getBroadcastItem(i).onCurrentTvChannelInfosUpdated(infos);
		} catch (RemoteException e) {
		Slog.e(TAG, "failed to report updated current channel infos to callback", e);
		}
		}
		userState.mCallbacks.finishBroadcast();
		}

		private void updateTvInputInfoLocked(UserState userState, TvInputInfo inputInfo) {
		if (DEBUG) {
		Slog.d(TAG, "updateTvInputInfoLocked(inputInfo=" + inputInfo + ")");
		@@ -1414,6 +1432,8 @@ public final class TvInputManagerService extends SystemService {
		if (sessionState != null) {
		sessionState.isCurrent = true;
		sessionState.currentChannel = channelUri;
		notifyCurrentChannelInfosUpdatedLocked(
		userState, getCurrentTvChannelInfosInternalLocked(userState));
		}
		if (TvContract.isChannelUriForPassthroughInput(channelUri)) {
		// Do not log the watch history for passthrough inputs.
		@@ -2069,79 +2089,20 @@ public final class TvInputManagerService extends SystemService {
		}

		@Override
		public List<TvChannelInfo> getTvCurrentChannelInfos(@UserIdInt int userId) {
		public List<TvChannelInfo> getCurrentTvChannelInfos(@UserIdInt int userId) {
		final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(),
		Binder.getCallingUid(), userId, "getTvCurrentChannelInfos");
		final long identity = Binder.clearCallingIdentity();
		try {
		synchronized (mLock) {
		UserState userState = getOrCreateUserStateLocked(resolvedUserId);
		List<TvChannelInfo> channelInfos = new ArrayList<>();
		boolean watchedProgramsAccess = hasAccessWatchedProgramsPermission();
		for (SessionState state : userState.sessionStateMap.values()) {
		if (state.isCurrent) {
		Integer appTag;
		int appType;
		if (state.callingUid == Binder.getCallingUid()) {
		appTag = APP_TAG_SELF;
		appType = TvChannelInfo.APP_TYPE_SELF;
		} else {
		appTag = userState.mAppTagMap.get(state.callingUid);
		if (appTag == null) {
		appTag = userState.mNextAppTag++;
		userState.mAppTagMap.put(state.callingUid, appTag);
		}
		appType = isSystemApp(state.componentName.getPackageName())
		? TvChannelInfo.APP_TYPE_SYSTEM
		: TvChannelInfo.APP_TYPE_NON_SYSTEM;
		}
		channelInfos.add(new TvChannelInfo(
		state.inputId,
		watchedProgramsAccess ? state.currentChannel : null,
		state.isRecordingSession,
		isForeground(state.callingPid),
		appType,
		appTag));
		}
		}
		return channelInfos;
		return getCurrentTvChannelInfosInternalLocked(userState);
		}
		} finally {
		Binder.restoreCallingIdentity(identity);
		}
		}

		protected boolean isForeground(int pid) {
		if (mActivityManager == null) {
		return false;
		}
		List<RunningAppProcessInfo> appProcesses = mActivityManager.getRunningAppProcesses();
		if (appProcesses == null) {
		return false;
		}
		for (RunningAppProcessInfo appProcess : appProcesses) {
		if (appProcess.pid == pid
		&& appProcess.importance == RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
		return true;
		}
		}
		return false;
		}

		private boolean hasAccessWatchedProgramsPermission() {
		return mContext.checkCallingPermission(PERMISSION_ACCESS_WATCHED_PROGRAMS)
		== PackageManager.PERMISSION_GRANTED;
		}

		private boolean isSystemApp(String pkg) {
		try {
		return (mContext.getPackageManager().getApplicationInfo(pkg, 0).flags
		& ApplicationInfo.FLAG_SYSTEM) != 0;
		} catch (NameNotFoundException e) {
		return false;
		}
		}

		/**
		* Add a hardware device in the TvInputHardwareManager for CTS testing
		* purpose.
		@@ -2312,6 +2273,69 @@ public final class TvInputManagerService extends SystemService {
		}
		}

		private List<TvChannelInfo> getCurrentTvChannelInfosInternalLocked(UserState userState) {
		List<TvChannelInfo> channelInfos = new ArrayList<>();
		boolean watchedProgramsAccess = hasAccessWatchedProgramsPermission();
		for (SessionState state : userState.sessionStateMap.values()) {
		if (state.isCurrent) {
		Integer appTag;
		int appType;
		if (state.callingUid == Binder.getCallingUid()) {
		appTag = APP_TAG_SELF;
		appType = TvChannelInfo.APP_TYPE_SELF;
		} else {
		appTag = userState.mAppTagMap.get(state.callingUid);
		if (appTag == null) {
		appTag = userState.mNextAppTag++;
		userState.mAppTagMap.put(state.callingUid, appTag);
		}
		appType = isSystemApp(state.componentName.getPackageName())
		? TvChannelInfo.APP_TYPE_SYSTEM
		: TvChannelInfo.APP_TYPE_NON_SYSTEM;
		}
		channelInfos.add(new TvChannelInfo(
		state.inputId,
		watchedProgramsAccess ? state.currentChannel : null,
		state.isRecordingSession,
		isForeground(state.callingPid),
		appType,
		appTag));
		}
		}
		return channelInfos;
		}

		private boolean isForeground(int pid) {
		if (mActivityManager == null) {
		return false;
		}
		List<RunningAppProcessInfo> appProcesses = mActivityManager.getRunningAppProcesses();
		if (appProcesses == null) {
		return false;
		}
		for (RunningAppProcessInfo appProcess : appProcesses) {
		if (appProcess.pid == pid
		&& appProcess.importance == RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
		return true;
		}
		}
		return false;
		}

		private boolean hasAccessWatchedProgramsPermission() {
		return mContext.checkCallingPermission(PERMISSION_ACCESS_WATCHED_PROGRAMS)
		== PackageManager.PERMISSION_GRANTED;
		}

		private boolean isSystemApp(String pkg) {
		try {
		return (mContext.getPackageManager().getApplicationInfo(pkg, 0).flags
		& ApplicationInfo.FLAG_SYSTEM) != 0;
		} catch (NameNotFoundException e) {
		return false;
		}
		}

		private static final class UserState {
		// A mapping from the TV input id to its TvInputState.
		private Map<String, TvInputState> inputMap = new HashMap<>();
		@@ -2685,6 +2709,11 @@ public final class TvInputManagerService extends SystemService {
		if (mSessionState.session == null \|\| mSessionState.client == null) {
		return;
		}
		mSessionState.isCurrent = true;
		mSessionState.currentChannel = channelUri;
		UserState userState = getOrCreateUserStateLocked(mSessionState.userId);
		notifyCurrentChannelInfosUpdatedLocked(
		userState, getCurrentTvChannelInfosInternalLocked(userState));
		try {
		// TODO: Consider adding this channel change in the watch log. When we do
		// that, how we can protect the watch log from malicious tv inputs should