Add ability to cancel task window transitions. (c28098f6) · Commits · e / os / android_frameworks_base

core/java/android/view/IWindowManager.aidl

+5 −0

Original line number	Diff line number	Diff line
		@@ -201,6 +201,11 @@ interface IWindowManager
		*/
		void setScreenCaptureDisabled(int userId, boolean disabled);

		/**
		* Cancels the window transitions for the given task.
		*/
		void cancelTaskWindowTransition(int taskId);

		// These can only be called with the SET_ORIENTATION permission.
		/**
		* Update the current screen rotation based on the current state of

packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java

+9 −0

Original line number	Diff line number	Diff line
		@@ -517,6 +517,15 @@ public class RecentsActivity extends Activity implements RecentsView.RecentsView
		boolean hasRepKeyTimeElapsed = (SystemClock.elapsedRealtime() -
		mLastTabKeyEventTime) > altTabKeyDelay;
		if (event.getRepeatCount() <= 0 \|\| hasRepKeyTimeElapsed) {
		// As we iterate to the next/previous task, cancel any current/lagging window
		// transition animations
		RecentsConfiguration config = Recents.getConfiguration();
		RecentsActivityLaunchState launchState = config.getLaunchState();
		if (launchState.launchedToTaskId != -1) {
		SystemServicesProxy ssp = Recents.getSystemServices();
		ssp.cancelWindowTransition(launchState.launchedToTaskId);
		}

		// Focus the next task in the stack
		final boolean backward = event.isShiftPressed();
		if (backward) {

packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java

+14 −0

Original line number	Diff line number	Diff line
		@@ -57,6 +57,7 @@ import android.util.MutableBoolean;
		import android.util.Pair;
		import android.view.Display;
		import android.view.WindowManager;
		import android.view.WindowManagerGlobal;
		import android.view.accessibility.AccessibilityManager;
		import com.android.internal.app.AssistUtils;
		import com.android.internal.os.BackgroundThread;
		@@ -335,6 +336,19 @@ public class SystemServicesProxy {
		return stackInfo != null;
		}

		/**
		* Cancels the current window transtion to/from Recents for the given task id.
		*/
		public void cancelWindowTransition(int taskId) {
		if (mWm == null) return;

		try {
		WindowManagerGlobal.getWindowManagerService().cancelTaskWindowTransition(taskId);
		} catch (RemoteException e) {
		e.printStackTrace();
		}
		}

		/** Returns the top task thumbnail for the given task id */
		public Bitmap getTaskThumbnail(int taskId) {
		if (mAm == null) return null;

packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java

+41 −21

Original line number	Diff line number	Diff line
		@@ -44,6 +44,7 @@ import com.android.systemui.R;
		import com.android.systemui.recents.Constants;
		import com.android.systemui.recents.Recents;
		import com.android.systemui.recents.RecentsActivity;
		import com.android.systemui.recents.RecentsActivityLaunchState;
		import com.android.systemui.recents.RecentsAppWidgetHostView;
		import com.android.systemui.recents.RecentsConfiguration;
		import com.android.systemui.recents.events.EventBus;
		@@ -587,6 +588,20 @@ public class RecentsView extends FrameLayout implements TaskStackView.TaskStackV
		return new AppTransitionAnimationSpec(taskId, b, rect);
		}

		/**
		* Cancels any running window transitions for the launched task (the task animating into
		* Recents).
		*/
		private void cancelLaunchedTaskWindowTransition(final Task task) {
		SystemServicesProxy ssp = Recents.getSystemServices();
		RecentsConfiguration config = Recents.getConfiguration();
		RecentsActivityLaunchState launchState = config.getLaunchState();
		if (launchState.launchedToTaskId != -1 &&
		launchState.launchedToTaskId != task.key.id) {
		ssp.cancelWindowTransition(launchState.launchedToTaskId);
		}
		}

		/** TaskStackView.TaskStackCallbacks Implementation **/

		@Override
		@@ -617,16 +632,20 @@ public class RecentsView extends FrameLayout implements TaskStackView.TaskStackV

		// Compute the thumbnail to scale up from
		final SystemServicesProxy ssp = Recents.getSystemServices();
		boolean screenPinningRequested = false;
		ActivityOptions opts = null;
		ActivityOptions.OnAnimationStartedListener animStartedListener = null;
		if (task.thumbnail != null && task.thumbnail.getWidth() > 0 &&
		task.thumbnail.getHeight() > 0) {
		if (lockToTask) {
		animStartedListener = new ActivityOptions.OnAnimationStartedListener() {
		boolean mTriggered = false;
		@Override
		public void onAnimationStarted() {
		if (!mTriggered) {
		// If we are launching into another task, cancel the previous task's
		// window transition
		cancelLaunchedTaskWindowTransition(task);

		if (lockToTask) {
		// Request screen pinning after the animation runs
		postDelayed(new Runnable() {
		@Override
		public void run() {
		@@ -634,17 +653,16 @@ public class RecentsView extends FrameLayout implements TaskStackView.TaskStackV
		getContext(), ssp));
		}
		}, 350);
		mTriggered = true;
		}
		}
		};
		}
		postDrawHeaderThumbnailTransitionRunnable(stackView, tv, offsetX, offsetY, stackScroll,
		animStartedListener, destinationStack);
		opts = ActivityOptions.makeThumbnailAspectScaleUpAnimation(sourceView,
		Bitmap.createBitmap(1, 1, Bitmap.Config.ALPHA_8).createAshmemBitmap(),
		offsetX, offsetY, (int) transform.rect.width(), (int) transform.rect.height(),
		sourceView.getHandler(), animStartedListener);
		screenPinningRequested = true;
		} else {
		opts = ActivityOptions.makeBasic();
		}
		@@ -652,7 +670,7 @@ public class RecentsView extends FrameLayout implements TaskStackView.TaskStackV
		opts.setBounds(bounds.isEmpty() ? null : bounds);
		}
		final ActivityOptions launchOpts = opts;
		final boolean screenPinningRequested = (animStartedListener == null) && lockToTask;
		final boolean finalScreenPinningRequested = screenPinningRequested;
		final Runnable launchRunnable = new Runnable() {
		@Override
		public void run() {
		@@ -660,9 +678,11 @@ public class RecentsView extends FrameLayout implements TaskStackView.TaskStackV
		// Bring an active task to the foreground
		ssp.moveTaskToFront(task.key.id, launchOpts);
		} else {
		if (ssp.startActivityFromRecents(getContext(), task.key.id,
		task.activityLabel, launchOpts)) {
		if (screenPinningRequested) {
		if (ssp.startActivityFromRecents(getContext(), task.key.id, task.activityLabel,
		launchOpts)) {
		if (!finalScreenPinningRequested) {
		// If we have not requested this already to be run after the window
		// transition, then just run it now
		EventBus.getDefault().send(new ScreenPinningRequestEvent(
		getContext(), ssp));
		}

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

+9 −0

Original line number	Diff line number	Diff line
		@@ -320,6 +320,15 @@ class Task implements DimLayer.DimLayerUser {
		}
		}

		/**
		* Cancels any running app transitions associated with the task.
		*/
		void cancelTaskWindowTransition() {
		for (int activityNdx = mAppTokens.size() - 1; activityNdx >= 0; --activityNdx) {
		mAppTokens.get(activityNdx).mAppAnimator.clearAnimation();
		}
		}

		boolean showForAllUsers() {
		final int tokensCount = mAppTokens.size();
		return (tokensCount != 0) && mAppTokens.get(tokensCount - 1).showForAllUsers;