Add support for keeping fixed orientation of non-top visible app (696064cf) · Commits · e / os / android_frameworks_base

core/java/android/window/flags/windowing_frontend.aconfig

+7 −0

Original line number	Diff line number	Diff line
		@@ -140,6 +140,13 @@ flag {
		bug: "200769420"
		}

		flag {
		name: "respect_non_top_visible_fixed_orientation"
		namespace: "windowing_frontend"
		description: "If top activity is not opaque, respect the fixed orientation of activity behind it"
		bug: "283514860"
		}

		flag {
		name: "insets_decoupled_configuration"
		namespace: "windowing_frontend"

services/core/java/com/android/server/wm/DisplayContent.java

+101 −3

Original line number	Diff line number	Diff line
		@@ -1754,6 +1754,82 @@ class DisplayContent extends RootDisplayArea implements WindowManagerPolicy.Disp
		return mDisplayRotation.updateOrientation(orientation, forceUpdate);
		}

		@Nullable
		private ActivityRecord getLastOrientationSourceApp() {
		final WindowContainer<?> orientationSrc = getLastOrientationSource();
		return orientationSrc != null ? orientationSrc.asActivityRecord() : null;
		}

		/**
		* This is called when the display rotation is changed. If the current top activity which
		* decides the display orientation is not opaque, all non-top visible activities with
		* different fixed orientations will still keep their original appearances.
		*/
		void applyFixedRotationForNonTopVisibleActivityIfNeeded() {
		if (!mWmService.mFlags.mRespectNonTopVisibleFixedOrientation) {
		return;
		}
		final ActivityRecord orientationSrcApp = getLastOrientationSourceApp();
		if (orientationSrcApp == null \|\| orientationSrcApp.fillsParent()) {
		return;
		}
		final int topOrientation = orientationSrcApp.getRequestedOrientation();
		if (topOrientation == SCREEN_ORIENTATION_UNSPECIFIED) {
		return;
		}
		forAllActivities(ar -> {
		if (!ar.isVisibleRequested()) {
		return true;
		}
		applyFixedRotationForNonTopVisibleActivityIfNeeded(ar, topOrientation);
		return false;
		}, true /* traverseTopToBottom */);
		}

		/**
		* This is called when a non-top activity becomes visible. Such when moving a task which
		* contains 2 activities with different fixed orientations, and if the top one is translucent,
		* then the bottom one will apply the fixed rotation transform for its orientation.
		*/
		void applyFixedRotationForNonTopVisibleActivityIfNeeded(@NonNull ActivityRecord ar) {
		if (!mWmService.mFlags.mRespectNonTopVisibleFixedOrientation) {
		return;
		}
		final ActivityRecord orientationSrcApp = getLastOrientationSourceApp();
		if (orientationSrcApp != null) {
		applyFixedRotationForNonTopVisibleActivityIfNeeded(ar,
		orientationSrcApp.getRequestedOrientation());
		}
		}

		/**
		* If the given visible activity uses a different fixed orientation than the current top, the
		* fixed rotation transform will be applied to respect its requested appearance.
		*/
		private void applyFixedRotationForNonTopVisibleActivityIfNeeded(@NonNull ActivityRecord ar,
		@ActivityInfo.ScreenOrientation int topOrientation) {
		final int orientation = ar.getRequestedOrientation();
		if (orientation == topOrientation \|\| ar.inMultiWindowMode()
		\|\| ar.getRequestedConfigurationOrientation() == ORIENTATION_UNDEFINED) {
		return;
		}
		final int displayRotation = getRotation();
		final int rotation = ar.isVisible()
		? ar.getWindowConfiguration().getDisplayRotation()
		: mDisplayRotation.rotationForOrientation(orientation, displayRotation);
		if (rotation == displayRotation) {
		return;
		}
		startFixedRotationTransform(ar, rotation);
		final WindowState wallpaperTarget = mWallpaperController.getWallpaperTarget();
		if (wallpaperTarget != null && wallpaperTarget.mActivityRecord == ar) {
		final WindowState wp = mWallpaperController.getTopVisibleWallpaper();
		if (wp != null) {
		wp.mToken.linkFixedRotationTransform(ar);
		}
		}
		}

		@Override
		boolean isSyncFinished(BLASTSyncEngine.SyncGroup group) {
		// Do not consider children because if they are requested to be synced, they should be
		@@ -1822,10 +1898,23 @@ class DisplayContent extends RootDisplayArea implements WindowManagerPolicy.Disp
		return false;
		}
		if (r.hasFixedRotationTransform()) {
		if (mWmService.mFlags.mRespectNonTopVisibleFixedOrientation
		&& mFixedRotationLaunchingApp == null) {
		// It could be finishing the previous top translucent activity, and the next fixed
		// orientation activity becomes the current top.
		setFixedRotationLaunchingAppUnchecked(r,
		r.getWindowConfiguration().getDisplayRotation());
		}
		// It has been set and not yet finished.
		return true;
		}
		if (!r.occludesParent() \|\| r.isReportedDrawn()) {
		if (mWmService.mFlags.mRespectNonTopVisibleFixedOrientation) {
		if (r.isReportedDrawn()) {
		// It is late for a drawn app. Either this is already a stable state or it needs
		// a rotation animation to handle the change.
		return false;
		}
		} else if (!r.occludesParent() \|\| r.isReportedDrawn()) {
		// While entering or leaving a translucent or floating activity (e.g. dialog style),
		// there is a visible activity in the background. Then it still needs rotation animation
		// to cover the activity configuration change.
		@@ -6923,7 +7012,11 @@ class DisplayContent extends RootDisplayArea implements WindowManagerPolicy.Disp
		// In most cases this is a no-op if the activity doesn't have fixed rotation.
		// Otherwise it could be from finishing recents animation while the display has
		// different orientation.
		if (!mWmService.mFlags.mRespectNonTopVisibleFixedOrientation) {
		r.finishFixedRotationTransform();
		} else if (!r.isVisible()) {
		r.finishFixedRotationTransform();
		}
		return;
		}
		if (mFixedRotationLaunchingApp.hasFixedRotationTransform(r)) {
		@@ -6938,7 +7031,12 @@ class DisplayContent extends RootDisplayArea implements WindowManagerPolicy.Disp
		// E.g. activity A transferred starting window to B, only A will receive transition
		// finished event. A doesn't have fixed rotation but B is the rotated launching app.
		final Task task = r.getTask();
		if (task == null \|\| task != mFixedRotationLaunchingApp.getTask()) {
		if (task != mFixedRotationLaunchingApp.getTask()
		// When closing a translucent task A (r.fillsParent() is false) to a
		// visible task B, because only A has visibility change, there is only A's
		// transition callback. Then it still needs to update orientation for B.
		&& (!mWmService.mFlags.mRespectNonTopVisibleFixedOrientation
		\|\| r.fillsParent())) {
		// Different tasks won't be in one activity transition animation.
		return;
		}

services/core/java/com/android/server/wm/DisplayRotation.java

+1 −0

Original line number	Diff line number	Diff line
		@@ -627,6 +627,7 @@ public class DisplayRotation {

		mRotation = rotation;

		mDisplayContent.applyFixedRotationForNonTopVisibleActivityIfNeeded();
		mDisplayContent.setLayoutNeeded();
		mDisplayContent.mWaitingForConfig = true;

services/core/java/com/android/server/wm/EnsureActivitiesVisibleHelper.java

+3 −0

Original line number	Diff line number	Diff line
		@@ -174,6 +174,9 @@ class EnsureActivitiesVisibleHelper {
		// First: if this is not the current activity being started, make
		// sure it matches the current configuration.
		if (r != mStarting && mNotifyClients) {
		if (!isTop) {
		r.mDisplayContent.applyFixedRotationForNonTopVisibleActivityIfNeeded(r);
		}
		r.ensureActivityConfiguration(true /* ignoreVisibility */);
		}

services/core/java/com/android/server/wm/WindowManagerFlags.java

+3 −0

Original line number	Diff line number	Diff line
		@@ -50,5 +50,8 @@ class WindowManagerFlags {

		final boolean mInsetsDecoupledConfiguration = Flags.insetsDecoupledConfiguration();

		final boolean mRespectNonTopVisibleFixedOrientation =
		Flags.respectNonTopVisibleFixedOrientation();

		/* End Available Flags */
		}