[6/n] Letterbox Education: add window manager and connect to controller. (2d609769) · Commits · e / os / android_frameworks_base

libs/WindowManager/Shell/src/com/android/wm/shell/compatui/CompatUIController.java

+99 −33

Original line number	Diff line number	Diff line
		@@ -40,6 +40,7 @@ import com.android.wm.shell.common.DisplayLayout;
		import com.android.wm.shell.common.ShellExecutor;
		import com.android.wm.shell.common.SyncTransactionQueue;
		import com.android.wm.shell.common.annotations.ExternalThread;
		import com.android.wm.shell.compatui.letterboxedu.LetterboxEduWindowManager;

		import java.lang.ref.WeakReference;
		import java.util.ArrayList;
		@@ -74,8 +75,22 @@ public class CompatUIController implements OnDisplaysChangedListener,
		private final SparseArray<PerDisplayOnInsetsChangedListener> mOnInsetsChangedListeners =
		new SparseArray<>(0);

		/** The showing UIs by task id. */
		private final SparseArray<CompatUIWindowManager> mActiveLayouts = new SparseArray<>(0);
		/**
		* The active Compat Control UI layouts by task id.
		*
		* <p>An active layout is a layout that is eligible to be shown for the associated task but
		* isn't necessarily shown at a given time.
		*/
		private final SparseArray<CompatUIWindowManager> mActiveCompatLayouts = new SparseArray<>(0);

		/**
		* The active Letterbox Education layout if there is one (there can be at most one active).
		*
		* <p>An active layout is a layout that is eligible to be shown for the associated task but
		* isn't necessarily shown at a given time.
		*/
		@Nullable
		private LetterboxEduWindowManager mActiveLetterboxEduLayout;

		/** Avoid creating display context frequently for non-default display. */
		private final SparseArray<WeakReference<Context>> mDisplayContextCache = new SparseArray<>(0);
		@@ -135,14 +150,12 @@ public class CompatUIController implements OnDisplaysChangedListener,
		@Nullable ShellTaskOrganizer.TaskListener taskListener) {
		if (taskInfo.configuration == null \|\| taskListener == null) {
		// Null token means the current foreground activity is not in compatibility mode.
		removeLayout(taskInfo.taskId);
		} else if (mActiveLayouts.contains(taskInfo.taskId)) {
		// UI already exists, update the UI layout.
		updateLayout(taskInfo, taskListener);
		} else {
		// Create a new compat UI.
		createLayout(taskInfo, taskListener);
		removeLayouts(taskInfo.taskId);
		return;
		}

		createOrUpdateCompatLayout(taskInfo, taskListener);
		createOrUpdateLetterboxEduLayout(taskInfo, taskListener);
		}

		@Override
		@@ -159,7 +172,7 @@ public class CompatUIController implements OnDisplaysChangedListener,
		final List<Integer> toRemoveTaskIds = new ArrayList<>();
		forAllLayoutsOnDisplay(displayId, layout -> toRemoveTaskIds.add(layout.getTaskId()));
		for (int i = toRemoveTaskIds.size() - 1; i >= 0; i--) {
		removeLayout(toRemoveTaskIds.get(i));
		removeLayouts(toRemoveTaskIds.get(i));
		}
		}

		@@ -218,26 +231,39 @@ public class CompatUIController implements OnDisplaysChangedListener,
		return mDisplaysWithIme.contains(displayId);
		}

		private void createLayout(TaskInfo taskInfo, ShellTaskOrganizer.TaskListener taskListener) {
		private void createOrUpdateCompatLayout(TaskInfo taskInfo,
		ShellTaskOrganizer.TaskListener taskListener) {
		CompatUIWindowManager layout = mActiveCompatLayouts.get(taskInfo.taskId);
		if (layout != null) {
		// UI already exists, update the UI layout.
		if (!layout.updateCompatInfo(taskInfo, taskListener,
		showOnDisplay(layout.getDisplayId()))) {
		// The layout is no longer eligible to be shown, remove from active layouts.
		mActiveCompatLayouts.remove(taskInfo.taskId);
		}
		return;
		}

		// Create a new UI layout.
		final Context context = getOrCreateDisplayContext(taskInfo.displayId);
		if (context == null) {
		Log.e(TAG, "Cannot get context for display " + taskInfo.displayId);
		return;
		}

		final CompatUIWindowManager compatUIWindowManager =
		createLayout(context, taskInfo, taskListener);
		mActiveLayouts.put(taskInfo.taskId, compatUIWindowManager);
		compatUIWindowManager.createLayout(showOnDisplay(taskInfo.displayId), taskInfo);
		layout = createCompatUiWindowManager(context, taskInfo, taskListener);
		if (layout.createLayout(showOnDisplay(taskInfo.displayId))) {
		// The new layout is eligible to be shown, add it the active layouts.
		mActiveCompatLayouts.put(taskInfo.taskId, layout);
		}
		}

		@VisibleForTesting
		CompatUIWindowManager createLayout(Context context, TaskInfo taskInfo,
		CompatUIWindowManager createCompatUiWindowManager(Context context, TaskInfo taskInfo,
		ShellTaskOrganizer.TaskListener taskListener) {
		final CompatUIWindowManager compatUIWindowManager = new CompatUIWindowManager(context,
		taskInfo.configuration, mSyncQueue, mCallback, taskInfo.taskId, taskListener,
		taskInfo, mSyncQueue, mCallback, taskListener,
		mDisplayController.getDisplayLayout(taskInfo.displayId), mHasShownSizeCompatHint,
		mHasShownCameraCompatHint);
		// TODO(b/218304113): updates values only if hints are actually shown to the user.
		// Only show hints for the first time.
		if (taskInfo.topActivityInSizeCompat) {
		mHasShownSizeCompatHint = true;
		@@ -248,19 +274,53 @@ public class CompatUIController implements OnDisplaysChangedListener,
		return compatUIWindowManager;
		}

		private void updateLayout(TaskInfo taskInfo, ShellTaskOrganizer.TaskListener taskListener) {
		final CompatUIWindowManager layout = mActiveLayouts.get(taskInfo.taskId);
		if (layout == null) {
		private void createOrUpdateLetterboxEduLayout(TaskInfo taskInfo,
		ShellTaskOrganizer.TaskListener taskListener) {
		if (mActiveLetterboxEduLayout != null
		&& mActiveLetterboxEduLayout.getTaskId() == taskInfo.taskId) {
		// UI already exists, update the UI layout.
		if (!mActiveLetterboxEduLayout.updateCompatInfo(taskInfo, taskListener,
		showOnDisplay(mActiveLetterboxEduLayout.getDisplayId()))) {
		// The layout is no longer eligible to be shown, clear active layout.
		mActiveLetterboxEduLayout = null;
		}
		return;
		}

		// Create a new UI layout.
		final Context context = getOrCreateDisplayContext(taskInfo.displayId);
		if (context == null) {
		return;
		}
		layout.updateCompatInfo(taskInfo, taskListener, showOnDisplay(layout.getDisplayId()));
		LetterboxEduWindowManager newLayout = new LetterboxEduWindowManager(context, taskInfo,
		mSyncQueue, taskListener, mDisplayController.getDisplayLayout(taskInfo.displayId),
		this::onLetterboxEduDismissed);
		if (newLayout.createLayout(showOnDisplay(taskInfo.displayId))) {
		// The new layout is eligible to be shown, make it the active layout.
		if (mActiveLetterboxEduLayout != null) {
		// Release the previous layout since at most one can be active.
		// Since letterbox education is only shown once to the user, releasing the previous
		// layout is only a precaution.
		mActiveLetterboxEduLayout.release();
		}
		mActiveLetterboxEduLayout = newLayout;
		}
		}

		private void onLetterboxEduDismissed() {
		mActiveLetterboxEduLayout = null;
		}

		private void removeLayout(int taskId) {
		final CompatUIWindowManager layout = mActiveLayouts.get(taskId);
		private void removeLayouts(int taskId) {
		final CompatUIWindowManager layout = mActiveCompatLayouts.get(taskId);
		if (layout != null) {
		layout.release();
		mActiveLayouts.remove(taskId);
		mActiveCompatLayouts.remove(taskId);
		}

		if (mActiveLetterboxEduLayout != null && mActiveLetterboxEduLayout.getTaskId() == taskId) {
		mActiveLetterboxEduLayout.release();
		mActiveLetterboxEduLayout = null;
		}
		}

		@@ -278,28 +338,34 @@ public class CompatUIController implements OnDisplaysChangedListener,
		if (display != null) {
		context = mContext.createDisplayContext(display);
		mDisplayContextCache.put(displayId, new WeakReference<>(context));
		} else {
		Log.e(TAG, "Cannot get context for display " + displayId);
		}
		}
		return context;
		}

		private void forAllLayoutsOnDisplay(int displayId, Consumer<CompatUIWindowManager> callback) {
		private void forAllLayoutsOnDisplay(int displayId,
		Consumer<CompatUIWindowManagerAbstract> callback) {
		forAllLayouts(layout -> layout.getDisplayId() == displayId, callback);
		}

		private void forAllLayouts(Consumer<CompatUIWindowManager> callback) {
		private void forAllLayouts(Consumer<CompatUIWindowManagerAbstract> callback) {
		forAllLayouts(layout -> true, callback);
		}

		private void forAllLayouts(Predicate<CompatUIWindowManager> condition,
		Consumer<CompatUIWindowManager> callback) {
		for (int i = 0; i < mActiveLayouts.size(); i++) {
		final int taskId = mActiveLayouts.keyAt(i);
		final CompatUIWindowManager layout = mActiveLayouts.get(taskId);
		private void forAllLayouts(Predicate<CompatUIWindowManagerAbstract> condition,
		Consumer<CompatUIWindowManagerAbstract> callback) {
		for (int i = 0; i < mActiveCompatLayouts.size(); i++) {
		final int taskId = mActiveCompatLayouts.keyAt(i);
		final CompatUIWindowManager layout = mActiveCompatLayouts.get(taskId);
		if (layout != null && condition.test(layout)) {
		callback.accept(layout);
		}
		}
		if (mActiveLetterboxEduLayout != null && condition.test(mActiveLetterboxEduLayout)) {
		callback.accept(mActiveLetterboxEduLayout);
		}
		}

		/**

libs/WindowManager/Shell/src/com/android/wm/shell/compatui/CompatUIWindowManager.java

+20 −23

Original line number	Diff line number	Diff line
		@@ -25,7 +25,6 @@ import android.annotation.Nullable;
		import android.app.TaskInfo;
		import android.app.TaskInfo.CameraCompatControlState;
		import android.content.Context;
		import android.content.res.Configuration;
		import android.graphics.Rect;
		import android.util.Log;
		import android.view.LayoutInflater;
		@@ -36,6 +35,8 @@ import com.android.wm.shell.R;
		import com.android.wm.shell.ShellTaskOrganizer;
		import com.android.wm.shell.common.DisplayLayout;
		import com.android.wm.shell.common.SyncTransactionQueue;
		import com.android.wm.shell.compatui.CompatUIController.CompatUICallback;
		import com.android.wm.shell.compatui.letterboxedu.LetterboxEduWindowManager;

		/**
		* Window manager for the Size Compat restart button and Camera Compat control.
		@@ -43,18 +44,19 @@ import com.android.wm.shell.common.SyncTransactionQueue;
		class CompatUIWindowManager extends CompatUIWindowManagerAbstract {

		/**
		* The Compat UI should be the topmost child of the Task in case there can be more than one
		* child.
		* The Compat UI should be below the Letterbox Education.
		*/
		private static final int Z_ORDER = Integer.MAX_VALUE;
		private static final int Z_ORDER = LetterboxEduWindowManager.Z_ORDER - 1;

		private final CompatUIController.CompatUICallback mCallback;
		private final CompatUICallback mCallback;

		// Remember the last reported states in case visibility changes due to keyguard or IME updates.
		@VisibleForTesting
		boolean mHasSizeCompat;

		@VisibleForTesting
		@CameraCompatControlState
		private int mCameraCompatControlState = CAMERA_COMPAT_CONTROL_HIDDEN;
		int mCameraCompatControlState = CAMERA_COMPAT_CONTROL_HIDDEN;

		@VisibleForTesting
		boolean mShouldShowSizeCompatHint;
		@@ -65,12 +67,14 @@ class CompatUIWindowManager extends CompatUIWindowManagerAbstract {
		@VisibleForTesting
		CompatUILayout mLayout;

		CompatUIWindowManager(Context context, Configuration taskConfig,
		SyncTransactionQueue syncQueue, CompatUIController.CompatUICallback callback,
		int taskId, ShellTaskOrganizer.TaskListener taskListener, DisplayLayout displayLayout,
		CompatUIWindowManager(Context context, TaskInfo taskInfo,
		SyncTransactionQueue syncQueue, CompatUICallback callback,
		ShellTaskOrganizer.TaskListener taskListener, DisplayLayout displayLayout,
		boolean hasShownSizeCompatHint, boolean hasShownCameraCompatHint) {
		super(context, taskConfig, syncQueue, taskId, taskListener, displayLayout);
		super(context, taskInfo, syncQueue, taskListener, displayLayout);
		mCallback = callback;
		mHasSizeCompat = taskInfo.topActivityInSizeCompat;
		mCameraCompatControlState = taskInfo.cameraCompatControlState;
		mShouldShowSizeCompatHint = !hasShownSizeCompatHint;
		mShouldShowCameraCompatHint = !hasShownCameraCompatHint;
		}
		@@ -80,7 +84,6 @@ class CompatUIWindowManager extends CompatUIWindowManagerAbstract {
		return Z_ORDER;
		}


		@Override
		protected @Nullable View getLayout() {
		return mLayout;
		@@ -96,16 +99,6 @@ class CompatUIWindowManager extends CompatUIWindowManagerAbstract {
		return mHasSizeCompat \|\| shouldShowCameraControl();
		}

		/**
		* Updates the internal state with respect to {@code taskInfo} and calls {@link
		* #createLayout(boolean)}.
		*/
		void createLayout(boolean canShow, TaskInfo taskInfo) {
		mHasSizeCompat = taskInfo.topActivityInSizeCompat;
		mCameraCompatControlState = taskInfo.cameraCompatControlState;
		createLayout(canShow);
		}

		@Override
		protected View createLayout() {
		mLayout = inflateLayout();
		@@ -127,19 +120,23 @@ class CompatUIWindowManager extends CompatUIWindowManagerAbstract {
		}

		@Override
		public void updateCompatInfo(TaskInfo taskInfo, ShellTaskOrganizer.TaskListener taskListener,
		public boolean updateCompatInfo(TaskInfo taskInfo, ShellTaskOrganizer.TaskListener taskListener,
		boolean canShow) {
		final boolean prevHasSizeCompat = mHasSizeCompat;
		final int prevCameraCompatControlState = mCameraCompatControlState;
		mHasSizeCompat = taskInfo.topActivityInSizeCompat;
		mCameraCompatControlState = taskInfo.cameraCompatControlState;

		super.updateCompatInfo(taskInfo, taskListener, canShow);
		if (!super.updateCompatInfo(taskInfo, taskListener, canShow)) {
		return false;
		}

		if (prevHasSizeCompat != mHasSizeCompat
		\|\| prevCameraCompatControlState != mCameraCompatControlState) {
		updateVisibilityOfViews();
		}

		return true;
		}

		/** Called when the restart button is clicked. */

libs/WindowManager/Shell/src/com/android/wm/shell/compatui/CompatUIWindowManagerAbstract.java

+37 −20

Original line number	Diff line number	Diff line
		@@ -49,7 +49,7 @@ import com.android.wm.shell.common.SyncTransactionQueue;
		*
		* <p>Holds view hierarchy of a root surface and helps to inflate and manage layout.
		*/
		abstract class CompatUIWindowManagerAbstract extends WindowlessWindowManager {
		public abstract class CompatUIWindowManagerAbstract extends WindowlessWindowManager {

		protected final SyncTransactionQueue mSyncQueue;
		protected final int mDisplayId;
		@@ -75,15 +75,15 @@ abstract class CompatUIWindowManagerAbstract extends WindowlessWindowManager {
		@Nullable
		protected SurfaceControl mLeash;

		protected CompatUIWindowManagerAbstract(Context context, Configuration taskConfig,
		SyncTransactionQueue syncQueue, int taskId,
		ShellTaskOrganizer.TaskListener taskListener, DisplayLayout displayLayout) {
		super(taskConfig, null /* rootSurface /, null / hostInputToken */);
		protected CompatUIWindowManagerAbstract(Context context, TaskInfo taskInfo,
		SyncTransactionQueue syncQueue, ShellTaskOrganizer.TaskListener taskListener,
		DisplayLayout displayLayout) {
		super(taskInfo.configuration, null /* rootSurface /, null / hostInputToken */);
		mContext = context;
		mSyncQueue = syncQueue;
		mTaskConfig = taskConfig;
		mTaskConfig = taskInfo.configuration;
		mDisplayId = mContext.getDisplayId();
		mTaskId = taskId;
		mTaskId = taskInfo.taskId;
		mTaskListener = taskListener;
		mDisplayLayout = displayLayout;
		mStableBounds = new Rect();
		@@ -105,12 +105,18 @@ abstract class CompatUIWindowManagerAbstract extends WindowlessWindowManager {
		* Inflates and inits the layout of this window manager on to the root surface if both {@code
		* canShow} and {@link #eligibleToShowLayout} are true.
		*
		* <p>Doesn't do anything if layout is not eligible to be shown.
		*
		* @param canShow whether the layout is allowed to be shown by the parent controller.
		* @return whether the layout is eligible to be shown.
		*/
		void createLayout(boolean canShow) {
		if (!canShow \|\| !eligibleToShowLayout() \|\| getLayout() != null) {
		// Wait until layout should be visible.
		return;
		protected boolean createLayout(boolean canShow) {
		if (!eligibleToShowLayout()) {
		return false;
		}
		if (!canShow \|\| getLayout() != null) {
		// Wait until layout should be visible, or layout was already created.
		return true;
		}

		if (mViewHost != null) {
		@@ -123,6 +129,8 @@ abstract class CompatUIWindowManagerAbstract extends WindowlessWindowManager {
		mViewHost.setView(createLayout(), getWindowLayoutParams());

		updateSurfacePosition();

		return true;
		}

		/** Inflates and inits the layout of this window manager. */
		@@ -174,9 +182,12 @@ abstract class CompatUIWindowManagerAbstract extends WindowlessWindowManager {
		/**
		* Called when compat info changed.
		*
		* <p>The window manager is released if the layout is no longer eligible to be shown.
		*
		* @param canShow whether the layout is allowed to be shown by the parent controller.
		* @return whether the layout is eligible to be shown.
		*/
		void updateCompatInfo(TaskInfo taskInfo,
		protected boolean updateCompatInfo(TaskInfo taskInfo,
		ShellTaskOrganizer.TaskListener taskListener, boolean canShow) {
		final Configuration prevTaskConfig = mTaskConfig;
		final ShellTaskOrganizer.TaskListener prevTaskListener = mTaskListener;
		@@ -186,12 +197,16 @@ abstract class CompatUIWindowManagerAbstract extends WindowlessWindowManager {
		// Update configuration.
		setConfiguration(mTaskConfig);

		if (!eligibleToShowLayout()) {
		release();
		return false;
		}

		View layout = getLayout();
		if (layout == null \|\| prevTaskListener != taskListener) {
		// TaskListener changed, recreate the layout for new surface parent.
		release();
		createLayout(canShow);
		return;
		return createLayout(canShow);
		}

		boolean boundsUpdated = !mTaskConfig.windowConfiguration.getBounds().equals(
		@@ -207,6 +222,8 @@ abstract class CompatUIWindowManagerAbstract extends WindowlessWindowManager {
		// Update layout for RTL.
		layout.setLayoutDirection(mTaskConfig.getLayoutDirection());
		}

		return true;
		}


		@@ -248,16 +265,16 @@ abstract class CompatUIWindowManagerAbstract extends WindowlessWindowManager {
		mTaskListener.attachChildSurfaceToTask(mTaskId, b);
		}

		int getDisplayId() {
		public int getDisplayId() {
		return mDisplayId;
		}

		int getTaskId() {
		public int getTaskId() {
		return mTaskId;
		}

		/** Releases the surface control and tears down the view hierarchy. */
		void release() {
		public void release() {
		// Hiding before releasing to avoid flickering when transitioning to the Home screen.
		View layout = getLayout();
		if (layout != null) {
		@@ -278,7 +295,7 @@ abstract class CompatUIWindowManagerAbstract extends WindowlessWindowManager {
		}

		/** Re-layouts the view host and updates the surface position. */
		void relayout() {
		public void relayout() {
		if (mViewHost == null) {
		return;
		}
		@@ -334,7 +351,7 @@ abstract class CompatUIWindowManagerAbstract extends WindowlessWindowManager {
		}

		/** Gets the layout params. */
		private WindowManager.LayoutParams getWindowLayoutParams() {
		protected WindowManager.LayoutParams getWindowLayoutParams() {
		View layout = getLayout();
		if (layout == null) {
		return new WindowManager.LayoutParams();
		@@ -345,7 +362,7 @@ abstract class CompatUIWindowManagerAbstract extends WindowlessWindowManager {
		}

		/** Gets the layout params given the width and height of the layout. */
		private WindowManager.LayoutParams getWindowLayoutParams(int width, int height) {
		protected WindowManager.LayoutParams getWindowLayoutParams(int width, int height) {
		final WindowManager.LayoutParams winParams = new WindowManager.LayoutParams(
		// Cannot be wrap_content as this determines the actual window size
		width, height,

libs/WindowManager/Shell/src/com/android/wm/shell/compatui/letterboxedu/LetterboxEduDialogLayout.java

+13 −0

Original line number	Diff line number	Diff line
		@@ -35,6 +35,8 @@ class LetterboxEduDialogLayout extends FrameLayout {
		// 204 is simply 255 * 0.8.
		private static final int BACKGROUND_DIM_ALPHA = 204;

		private LetterboxEduWindowManager mWindowManager;

		public LetterboxEduDialogLayout(Context context) {
		this(context, null);
		}
		@@ -52,6 +54,17 @@ class LetterboxEduDialogLayout extends FrameLayout {
		super(context, attrs, defStyleAttr, defStyleRes);
		}

		void inject(LetterboxEduWindowManager windowManager) {
		mWindowManager = windowManager;
		}

		@Override
		protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
		super.onLayout(changed, left, top, right, bottom);
		// Need to relayout after visibility changes since they affect size.
		mWindowManager.relayout();
		}

		/**
		* Register a callback for the dismiss button and background dim.
		*

libs/WindowManager/Shell/src/com/android/wm/shell/compatui/letterboxedu/LetterboxEduWindowManager.java

0 → 100644

+150 −0

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