Support wallpaper on secondary displays.(7/N) (36597d4b) · Commits · e / os / android_frameworks_base

core/java/android/app/IWallpaperManager.aidl

+6 −5

Original line number	Diff line number	Diff line
		@@ -142,19 +142,20 @@ interface IWallpaperManager {
		*
		* @param which either {@link WallpaperManager#FLAG_LOCK}
		* or {@link WallpaperManager#FLAG_SYSTEM}
		* @param displayId Which display is interested
		* @return colors of chosen wallpaper
		*/
		WallpaperColors getWallpaperColors(int which, int userId);
		WallpaperColors getWallpaperColors(int which, int userId, int displayId);

		/**
		* Register a callback to receive color updates
		* Register a callback to receive color updates from a display
		*/
		void registerWallpaperColorsCallback(IWallpaperManagerCallback cb, int userId);
		void registerWallpaperColorsCallback(IWallpaperManagerCallback cb, int userId, int displayId);

		/**
		* Unregister a callback that was receiving color updates
		* Unregister a callback that was receiving color updates from a display
		*/
		void unregisterWallpaperColorsCallback(IWallpaperManagerCallback cb, int userId);
		void unregisterWallpaperColorsCallback(IWallpaperManagerCallback cb, int userId, int displayId);

		/**
		* Called from SystemUI when it shows the AoD UI.

core/java/android/app/WallpaperManager.java

+11 −9

Original line number	Diff line number	Diff line
		@@ -307,13 +307,14 @@ public class WallpaperManager {
		* @param callback Listener
		* @param handler Thread to call it from. Main thread if null.
		* @param userId Owner of the wallpaper or UserHandle.USER_ALL
		* @param displayId Caller comes from which display
		*/
		public void addOnColorsChangedListener(@NonNull OnColorsChangedListener callback,
		@Nullable Handler handler, int userId) {
		@Nullable Handler handler, int userId, int displayId) {
		synchronized (this) {
		if (!mColorCallbackRegistered) {
		try {
		mService.registerWallpaperColorsCallback(this, userId);
		mService.registerWallpaperColorsCallback(this, userId, displayId);
		mColorCallbackRegistered = true;
		} catch (RemoteException e) {
		// Failed, service is gone
		@@ -329,16 +330,17 @@ public class WallpaperManager {
		*
		* @param callback listener
		* @param userId Owner of the wallpaper or UserHandle.USER_ALL
		* @param displayId Which display is interested
		*/
		public void removeOnColorsChangedListener(@NonNull OnColorsChangedListener callback,
		int userId) {
		int userId, int displayId) {
		synchronized (this) {
		mColorListeners.removeIf(pair -> pair.first == callback);

		if (mColorListeners.size() == 0 && mColorCallbackRegistered) {
		mColorCallbackRegistered = false;
		try {
		mService.unregisterWallpaperColorsCallback(this, userId);
		mService.unregisterWallpaperColorsCallback(this, userId, displayId);
		} catch (RemoteException e) {
		// Failed, service is gone
		Log.w(TAG, "Can't unregister color updates", e);
		@@ -370,14 +372,14 @@ public class WallpaperManager {
		}
		}

		WallpaperColors getWallpaperColors(int which, int userId) {
		WallpaperColors getWallpaperColors(int which, int userId, int displayId) {
		if (which != FLAG_LOCK && which != FLAG_SYSTEM) {
		throw new IllegalArgumentException(
		"Must request colors for exactly one kind of wallpaper");
		}

		try {
		return mService.getWallpaperColors(which, userId);
		return mService.getWallpaperColors(which, userId, displayId);
		} catch (RemoteException e) {
		// Can't get colors, connection lost.
		}
		@@ -894,7 +896,7 @@ public class WallpaperManager {
		@UnsupportedAppUsage
		public void addOnColorsChangedListener(@NonNull OnColorsChangedListener listener,
		@NonNull Handler handler, int userId) {
		sGlobals.addOnColorsChangedListener(listener, handler, userId);
		sGlobals.addOnColorsChangedListener(listener, handler, userId, mContext.getDisplayId());
		}

		/**
		@@ -913,7 +915,7 @@ public class WallpaperManager {
		*/
		public void removeOnColorsChangedListener(@NonNull OnColorsChangedListener callback,
		int userId) {
		sGlobals.removeOnColorsChangedListener(callback, userId);
		sGlobals.removeOnColorsChangedListener(callback, userId, mContext.getDisplayId());
		}

		/**
		@@ -947,7 +949,7 @@ public class WallpaperManager {
		*/
		@UnsupportedAppUsage
		public @Nullable WallpaperColors getWallpaperColors(int which, int userId) {
		return sGlobals.getWallpaperColors(which, userId);
		return sGlobals.getWallpaperColors(which, userId, mContext.getDisplayId());
		}

		/**

core/java/android/service/wallpaper/IWallpaperConnection.aidl

+1 −1

Original line number	Diff line number	Diff line
		@@ -27,5 +27,5 @@ interface IWallpaperConnection {
		void attachEngine(IWallpaperEngine engine, int displayId);
		void engineShown(IWallpaperEngine engine);
		ParcelFileDescriptor setWallpaper(String name);
		void onWallpaperColorsChanged(in WallpaperColors colors);
		void onWallpaperColorsChanged(in WallpaperColors colors, int displayId);
		}

core/java/android/service/wallpaper/WallpaperService.java

+2 −2

Original line number	Diff line number	Diff line
		@@ -641,7 +641,7 @@ public abstract class WallpaperService extends Service {
		try {
		final WallpaperColors newColors = onComputeColors();
		if (mConnection != null) {
		mConnection.onWallpaperColorsChanged(newColors);
		mConnection.onWallpaperColorsChanged(newColors, mDisplay.getDisplayId());
		} else {
		Log.w(TAG, "Can't notify system because wallpaper connection "
		+ "was not established.");
		@@ -1465,7 +1465,7 @@ public abstract class WallpaperService extends Service {
		break;
		}
		try {
		mConnection.onWallpaperColorsChanged(mEngine.onComputeColors());
		mConnection.onWallpaperColorsChanged(mEngine.onComputeColors(), mDisplayId);
		} catch (RemoteException e) {
		// Connection went away, nothing to do in here.
		}

services/core/java/com/android/server/wallpaper/WallpaperManagerService.java

+135 −43

Original line number	Diff line number	Diff line
		@@ -350,12 +350,34 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		}

		private void notifyWallpaperColorsChanged(@NonNull WallpaperData wallpaper, int which) {
		if (wallpaper.connection != null) {
		wallpaper.connection.forEachDisplayConnector(connector -> {
		notifyWallpaperColorsChangedOnDisplay(wallpaper, which, connector.mDisplayId);
		});
		} else { // Lock wallpaper does not have WallpaperConnection.
		notifyWallpaperColorsChangedOnDisplay(wallpaper, which, DEFAULT_DISPLAY);
		}
		}

		private RemoteCallbackList<IWallpaperManagerCallback> getWallpaperCallbacks(int userId,
		int displayId) {
		RemoteCallbackList<IWallpaperManagerCallback> listeners = null;
		final SparseArray<RemoteCallbackList<IWallpaperManagerCallback>> displayListeners =
		mColorsChangedListeners.get(userId);
		if (displayListeners != null) {
		listeners = displayListeners.get(displayId);
		}
		return listeners;
		}

		private void notifyWallpaperColorsChangedOnDisplay(@NonNull WallpaperData wallpaper, int which,
		int displayId) {
		boolean needsExtraction;
		synchronized (mLock) {
		final RemoteCallbackList<IWallpaperManagerCallback> currentUserColorListeners =
		mColorsChangedListeners.get(wallpaper.userId);
		getWallpaperCallbacks(wallpaper.userId, displayId);
		final RemoteCallbackList<IWallpaperManagerCallback> userAllColorListeners =
		mColorsChangedListeners.get(UserHandle.USER_ALL);
		getWallpaperCallbacks(UserHandle.USER_ALL, displayId);
		// No-op until someone is listening to it.
		if (emptyCallbackList(currentUserColorListeners) &&
		emptyCallbackList(userAllColorListeners)) {
		@@ -363,7 +385,7 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		}

		if (DEBUG) {
		Slog.v(TAG, "notifyWallpaperColorsChanged " + which);
		Slog.v(TAG, "notifyWallpaperColorsChangedOnDisplay " + which);
		}

		needsExtraction = wallpaper.primaryColors == null;
		@@ -371,7 +393,7 @@ public class WallpaperManagerService extends IWallpaperManager.Stub

		// Let's notify the current values, it's fine if it's null, it just means
		// that we don't know yet.
		notifyColorListeners(wallpaper.primaryColors, which, wallpaper.userId);
		notifyColorListeners(wallpaper.primaryColors, which, wallpaper.userId, displayId);

		if (needsExtraction) {
		extractColors(wallpaper);
		@@ -381,7 +403,7 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		return;
		}
		}
		notifyColorListeners(wallpaper.primaryColors, which, wallpaper.userId);
		notifyColorListeners(wallpaper.primaryColors, which, wallpaper.userId, displayId);
		}
		}

		@@ -390,14 +412,14 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		}

		private void notifyColorListeners(@NonNull WallpaperColors wallpaperColors, int which,
		int userId) {
		int userId, int displayId) {
		final IWallpaperManagerCallback keyguardListener;
		final ArrayList<IWallpaperManagerCallback> colorListeners = new ArrayList<>();
		synchronized (mLock) {
		final RemoteCallbackList<IWallpaperManagerCallback> currentUserColorListeners =
		mColorsChangedListeners.get(userId);
		getWallpaperCallbacks(userId, displayId);
		final RemoteCallbackList<IWallpaperManagerCallback> userAllColorListeners =
		mColorsChangedListeners.get(UserHandle.USER_ALL);
		getWallpaperCallbacks(UserHandle.USER_ALL, displayId);
		keyguardListener = mKeyguardListener;

		if (currentUserColorListeners != null) {
		@@ -427,7 +449,8 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		}
		}

		if (keyguardListener != null) {
		// Only shows Keyguard on default display
		if (keyguardListener != null && displayId == DEFAULT_DISPLAY) {
		try {
		keyguardListener.onWallpaperColorsChanged(wallpaperColors, which, userId);
		} catch (RemoteException e) {
		@@ -446,6 +469,11 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		String cropFile = null;
		int wallpaperId;

		if (wallpaper.equals(mFallbackWallpaper)) {
		extractDefaultImageWallpaperColors();
		return;
		}

		synchronized (mLock) {
		// Not having a wallpaperComponent means it's a lock screen wallpaper.
		final boolean imageWallpaper = mImageWallpaper.equals(wallpaper.wallpaperComponent)
		@@ -482,6 +510,39 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		}
		}

		private void extractDefaultImageWallpaperColors() {
		synchronized (mLock) {
		if (mFallbackWallpaper.primaryColors != null) return;
		}

		if (DEBUG) Slog.d(TAG, "Extract default image wallpaper colors");
		WallpaperColors colors = null;
		final InputStream is = WallpaperManager.openDefaultWallpaper(mContext, FLAG_SYSTEM);
		if (is != null) {
		try {
		final BitmapFactory.Options options = new BitmapFactory.Options();
		final Bitmap bitmap = BitmapFactory.decodeStream(is, null, options);
		if (bitmap != null) {
		colors = WallpaperColors.fromBitmap(bitmap);
		bitmap.recycle();
		}
		} catch (OutOfMemoryError e) {
		Slog.w(TAG, "Can't decode default wallpaper stream", e);
		} finally {
		IoUtils.closeQuietly(is);
		}
		}

		if (colors == null) {
		Slog.e(TAG, "Extract default image wallpaper colors failed");
		return;
		}

		synchronized (mLock) {
		mFallbackWallpaper.primaryColors = colors;
		}
		}

		/**
		* Once a new wallpaper has been written via setWallpaper(...), it needs to be cropped
		* for display.
		@@ -696,6 +757,11 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		targetWallpaper.connection.removeDisplayConnector(displayId);
		removeDisplayData(displayId);
		}
		for (int i = mColorsChangedListeners.size() - 1; i >= 0; i--) {
		final SparseArray<RemoteCallbackList<IWallpaperManagerCallback>> callbacks =
		mColorsChangedListeners.valueAt(i);
		callbacks.delete(displayId);
		}
		}
		}

		@@ -706,9 +772,11 @@ public class WallpaperManagerService extends IWallpaperManager.Stub

		/**
		* Map of color listeners per user id.
		* The key will be the id of a user or UserHandle.USER_ALL - for wildcard listeners.
		* The first key will be the id of a user or UserHandle.USER_ALL - for wildcard listeners.
		* The secondary key will be the display id, which means which display the listener is
		* interested in.
		*/
		private final SparseArray<RemoteCallbackList<IWallpaperManagerCallback>>
		private final SparseArray<SparseArray<RemoteCallbackList<IWallpaperManagerCallback>>>
		mColorsChangedListeners;
		private WallpaperData mLastWallpaper;
		private IWallpaperManagerCallback mKeyguardListener;
		@@ -1228,9 +1296,10 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		/**
		* Called by a live wallpaper if its colors have changed.
		* @param primaryColors representation of wallpaper primary colors
		* @param displayId for which display
		*/
		@Override
		public void onWallpaperColorsChanged(WallpaperColors primaryColors) {
		public void onWallpaperColorsChanged(WallpaperColors primaryColors, int displayId) {
		int which;
		synchronized (mLock) {
		// Do not broadcast changes on ImageWallpaper since it's handled
		@@ -1243,14 +1312,16 @@ public class WallpaperManagerService extends IWallpaperManager.Stub

		// Live wallpapers always are system wallpapers.
		which = FLAG_SYSTEM;
		// It's also the lock screen wallpaper when we don't have a bitmap in there
		WallpaperData lockedWallpaper = mLockWallpaperMap.get(mWallpaper.userId);
		// It's also the lock screen wallpaper when we don't have a bitmap in there.
		if (displayId == DEFAULT_DISPLAY) {
		final WallpaperData lockedWallpaper = mLockWallpaperMap.get(mWallpaper.userId);
		if (lockedWallpaper == null) {
		which \|= FLAG_LOCK;
		}
		}
		}
		if (which != 0) {
		notifyWallpaperColorsChanged(mWallpaper, which);
		notifyWallpaperColorsChangedOnDisplay(mWallpaper, which, displayId);
		}
		}

		@@ -1277,9 +1348,6 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		Slog.w(TAG, "Failed to set ambient mode state", e);
		}
		}
		// TODO(multi-display) So far, we have shared the same wallpaper on each display.
		// Once we have multiple wallpapers on multiple displays, please complete here.
		if (displayId == DEFAULT_DISPLAY) {
		try {
		// This will trigger onComputeColors in the wallpaper engine.
		// It's fine to be locked in here since the binder is oneway.
		@@ -1289,7 +1357,6 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		}
		}
		}
		}

		@Override
		public void engineShown(IWallpaperEngine engine) {
		@@ -1681,6 +1748,7 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		FgThread.getHandler().post(() -> {
		notifyWallpaperColorsChanged(systemWallpaper, FLAG_SYSTEM);
		notifyWallpaperColorsChanged(lockWallpaper, FLAG_LOCK);
		notifyWallpaperColorsChanged(mFallbackWallpaper, FLAG_SYSTEM);
		});
		}

		@@ -1743,6 +1811,7 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		// When clearing a wallpaper, broadcast new valid colors
		if (data != null) {
		notifyWallpaperColorsChanged(data, which);
		notifyWallpaperColorsChanged(mFallbackWallpaper, FLAG_SYSTEM);
		}
		}

		@@ -2084,35 +2153,47 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		}

		@Override
		public void registerWallpaperColorsCallback(IWallpaperManagerCallback cb, int userId) {
		public void registerWallpaperColorsCallback(IWallpaperManagerCallback cb, int userId,
		int displayId) {
		userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
		userId, true, true, "registerWallpaperColorsCallback", null);
		synchronized (mLock) {
		RemoteCallbackList<IWallpaperManagerCallback> userColorsChangedListeners =
		mColorsChangedListeners.get(userId);
		if (userColorsChangedListeners == null) {
		userColorsChangedListeners = new RemoteCallbackList<>();
		mColorsChangedListeners.put(userId, userColorsChangedListeners);
		SparseArray<RemoteCallbackList<IWallpaperManagerCallback>>
		userDisplayColorsChangedListeners = mColorsChangedListeners.get(userId);
		if (userDisplayColorsChangedListeners == null) {
		userDisplayColorsChangedListeners = new SparseArray<>();
		mColorsChangedListeners.put(userId, userDisplayColorsChangedListeners);
		}
		RemoteCallbackList<IWallpaperManagerCallback> displayChangedListeners =
		userDisplayColorsChangedListeners.get(displayId);
		if (displayChangedListeners == null) {
		displayChangedListeners = new RemoteCallbackList<>();
		userDisplayColorsChangedListeners.put(displayId, displayChangedListeners);
		}
		userColorsChangedListeners.register(cb);
		displayChangedListeners.register(cb);
		}
		}

		@Override
		public void unregisterWallpaperColorsCallback(IWallpaperManagerCallback cb, int userId) {
		public void unregisterWallpaperColorsCallback(IWallpaperManagerCallback cb, int userId,
		int displayId) {
		userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
		userId, true, true, "unregisterWallpaperColorsCallback", null);
		synchronized (mLock) {
		final RemoteCallbackList<IWallpaperManagerCallback> userColorsChangedListeners =
		mColorsChangedListeners.get(userId);
		if (userColorsChangedListeners != null) {
		userColorsChangedListeners.unregister(cb);
		SparseArray<RemoteCallbackList<IWallpaperManagerCallback>>
		userDisplayColorsChangedListeners = mColorsChangedListeners.get(userId);
		if (userDisplayColorsChangedListeners != null) {
		RemoteCallbackList<IWallpaperManagerCallback> displayChangedListeners =
		userDisplayColorsChangedListeners.get(displayId);
		if (displayChangedListeners != null) {
		displayChangedListeners.unregister(cb);
		}
		}
		}
		}

		/**
		* TODO(b/115486823) Extends this method with specific display.
		* TODO(multi-display) Extends this method with specific display.
		* Propagate ambient state to wallpaper engine.
		*
		* @param inAmbientMode {@code true} when in ambient mode, {@code false} otherwise.
		@@ -2125,7 +2206,7 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		final WallpaperData data = mWallpaperMap.get(mCurrentUserId);
		if (data != null && data.connection != null && data.connection.mInfo != null
		&& data.connection.mInfo.supportsAmbientMode()) {
		// TODO(b/115486823) Extends this method with specific display.
		// TODO(multi-display) Extends this method with specific display.
		engine = data.connection.getDisplayConnectorOrCreate(DEFAULT_DISPLAY).mEngine;
		} else {
		engine = null;
		@@ -2151,7 +2232,8 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		}

		@Override
		public WallpaperColors getWallpaperColors(int which, int userId) throws RemoteException {
		public WallpaperColors getWallpaperColors(int which, int userId, int displayId)
		throws RemoteException {
		if (which != FLAG_LOCK && which != FLAG_SYSTEM) {
		throw new IllegalArgumentException("which should be either FLAG_LOCK or FLAG_SYSTEM");
		}
		@@ -2169,7 +2251,7 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		// Try to get the system wallpaper anyway since it might
		// also be the lock screen wallpaper
		if (wallpaperData == null) {
		wallpaperData = mWallpaperMap.get(userId);
		wallpaperData = findWallpaperAtDisplay(userId, displayId);
		}

		if (wallpaperData == null) {
		@@ -2187,6 +2269,15 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		}
		}

		private WallpaperData findWallpaperAtDisplay(int userId, int displayId) {
		if (mFallbackWallpaper != null && mFallbackWallpaper.connection != null
		&& mFallbackWallpaper.connection.containsDisplay(displayId)) {
		return mFallbackWallpaper;
		} else {
		return mWallpaperMap.get(userId);
		}
		}

		@Override
		public ParcelFileDescriptor setWallpaper(String name, String callingPackage,
		Rect cropHint, boolean allowBackup, Bundle extras, int which,
		@@ -2382,6 +2473,7 @@ public class WallpaperManagerService extends IWallpaperManager.Stub

		if (shouldNotifyColors) {
		notifyWallpaperColorsChanged(wallpaper, which);
		notifyWallpaperColorsChanged(mFallbackWallpaper, FLAG_SYSTEM);
		}
		}