Merge "[CD] Handle trackpad back gestures on connected displays" into main (8102154d) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/navigationbar/TaskbarDelegate.java

+3 −0

Original line number	Diff line number	Diff line
		@@ -239,6 +239,7 @@ public class TaskbarDelegate implements CommandQueue.Callbacks,
		@Override
		public void onDisplayAddSystemDecorations(int displayId) {
		CommandQueue.Callbacks.super.onDisplayAddSystemDecorations(displayId);
		mEdgeBackGestureHandler.onDisplayAddSystemDecorations(displayId);
		if (mLauncherProxyService.getProxy() == null) {
		return;
		}
		@@ -253,6 +254,7 @@ public class TaskbarDelegate implements CommandQueue.Callbacks,
		@Override
		public void onDisplayRemoved(int displayId) {
		CommandQueue.Callbacks.super.onDisplayRemoved(displayId);
		mEdgeBackGestureHandler.onDisplayRemoveSystemDecorations(displayId);
		if (mLauncherProxyService.getProxy() == null) {
		return;
		}
		@@ -267,6 +269,7 @@ public class TaskbarDelegate implements CommandQueue.Callbacks,
		@Override
		public void onDisplayRemoveSystemDecorations(int displayId) {
		CommandQueue.Callbacks.super.onDisplayRemoveSystemDecorations(displayId);
		mEdgeBackGestureHandler.onDisplayRemoveSystemDecorations(displayId);
		if (mLauncherProxyService.getProxy() == null) {
		return;
		}

packages/SystemUI/src/com/android/systemui/navigationbar/gestural/EdgeBackGestureHandler.java

+94 −23

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@ import static android.view.MotionEvent.TOOL_TYPE_FINGER;
		import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_EXCLUDE_FROM_SCREEN_MAGNIFICATION;

		import static com.android.systemui.Flags.edgebackGestureHandlerGetRunningTasksBackground;
		import static com.android.window.flags.Flags.enableMultidisplayTrackpadBackGesture;
		import static com.android.systemui.Flags.predictiveBackDelayWmTransition;
		import static com.android.systemui.classifier.Classifier.BACK_GESTURE;
		import static com.android.systemui.navigationbar.gestural.Utilities.isTrackpadThreeFingerSwipe;
		@@ -115,6 +116,8 @@ import kotlinx.coroutines.Job;
		import java.io.PrintWriter;
		import java.util.ArrayDeque;
		import java.util.Date;
		import java.util.HashMap;
		import java.util.Iterator;
		import java.util.Locale;
		import java.util.Map;
		import java.util.Optional;
		@@ -279,8 +282,7 @@ public class EdgeBackGestureHandler implements PluginListener<NavigationEdgeBack
		private boolean mIsTrackpadThreeFingerSwipe;
		private boolean mIsButtonForcedVisible;

		private InputMonitorCompat mInputMonitor;
		private InputChannelCompat.InputEventReceiver mInputEventReceiver;
		private final Map<Integer, InputMonitorResource> mInputMonitorResources = new HashMap<>();

		private NavigationEdgeBackPlugin mEdgeBackPlugin;
		private BackAnimation mBackAnimation;
		@@ -665,14 +667,44 @@ public class EdgeBackGestureHandler implements PluginListener<NavigationEdgeBack
		mIsNavBarShownTransiently = isTransient;
		}

		private void disposeInputChannel() {
		if (mInputEventReceiver != null) {
		mInputEventReceiver.dispose();
		mInputEventReceiver = null;
		/**
		* Called when a new display gets connected
		*
		* @param displayId The id associated with the connected display.
		*/
		public void onDisplayAddSystemDecorations(int displayId) {
		if (enableMultidisplayTrackpadBackGesture() && mIsEnabled) {
		mUiThreadContext.runWithScissors(() -> {
		removeAndDisposeInputMonitorResource(displayId);
		mInputMonitorResources.put(displayId, new InputMonitorResource(displayId));
		});
		}
		if (mInputMonitor != null) {
		mInputMonitor.dispose();
		mInputMonitor = null;
		}

		/**
		* Called when a display gets disconnected
		*
		* @param displayId The id associated with the disconnected display.
		*/
		public void onDisplayRemoveSystemDecorations(int displayId) {
		if (enableMultidisplayTrackpadBackGesture()) {
		mUiThreadContext.runWithScissors(() -> removeAndDisposeInputMonitorResource(displayId));
		}
		}

		private void removeAndDisposeInputMonitorResource(int displayId) {
		InputMonitorResource inputMonitor = mInputMonitorResources.remove(displayId);
		if (inputMonitor != null) {
		inputMonitor.dispose();
		}
		}

		private void disposeInputChannels() {
		Iterator<Map.Entry<Integer, InputMonitorResource>> iterator =
		mInputMonitorResources.entrySet().iterator();
		while (iterator.hasNext()) {
		iterator.next().getValue().dispose();
		iterator.remove();
		}
		}

		@@ -691,7 +723,7 @@ public class EdgeBackGestureHandler implements PluginListener<NavigationEdgeBack
		return;
		}
		mIsEnabled = isEnabled;
		disposeInputChannel();
		disposeInputChannels();

		if (mEdgeBackPlugin != null) {
		mEdgeBackPlugin.onDestroy();
		@@ -746,9 +778,8 @@ public class EdgeBackGestureHandler implements PluginListener<NavigationEdgeBack
		}

		// Register input event receiver
		mInputMonitor = new InputMonitorCompat("edge-swipe", mDisplayId);
		mInputEventReceiver = mInputMonitor.getInputReceiver(mUiThreadContext.getLooper(),
		mUiThreadContext.getChoreographer(), this::onInputEvent);
		mInputMonitorResources.put(mDisplayId, new InputMonitorResource(mDisplayId));
		//TODO(b/382774299): Register input monitor on connected displays (if any)

		// Add a nav bar panel window
		resetEdgeBackPlugin();
		@@ -950,9 +981,10 @@ public class EdgeBackGestureHandler implements PluginListener<NavigationEdgeBack
		return true;
		}

		private boolean isValidTrackpadBackGesture(boolean isTrackpadEvent) {
		if (!isTrackpadEvent) {
		return false;
		private boolean isValidTrackpadBackGesture(int displayId) {
		if (enableMultidisplayTrackpadBackGesture() && displayId != mDisplayId) {
		//TODO(b/382774299): Handle exclude regions on connected displays
		return true;
		}
		// for trackpad gestures, unless the whole screen is excluded region, 3-finger swipe
		// gestures are allowed even if the cursor is in the excluded region.
		@@ -969,14 +1001,15 @@ public class EdgeBackGestureHandler implements PluginListener<NavigationEdgeBack

		private boolean isWithinTouchRegion(MotionEvent ev) {
		// If the point is inside the PiP or Nav bar overlay excluded bounds, then ignore the back
		// gesture
		// gesture. Also ignore (for now) if it's not on the main display.
		// TODO(b/382130680): Implement back gesture handling on connected displays
		int x = (int) ev.getX();
		int y = (int) ev.getY();
		final boolean isInsidePip = mIsInPip && mPipExcludedBounds.contains(x, y);
		final boolean isInDesktopExcludeRegion = desktopExcludeRegionContains(x, y)
		&& isEdgeResizePermitted(ev);
		if (isInsidePip \|\| isInDesktopExcludeRegion
		\|\| mNavBarOverlayExcludedBounds.contains(x, y)) {
		\|\| mNavBarOverlayExcludedBounds.contains(x, y) \|\| ev.getDisplayId() != mDisplayId) {
		return false;
		}

		@@ -1076,7 +1109,11 @@ public class EdgeBackGestureHandler implements PluginListener<NavigationEdgeBack

		// Verify if this is in within the touch region and we aren't in immersive mode, and
		// either the bouncer is showing or the notification panel is hidden
		mInputEventReceiver.setBatchingEnabled(false);
		InputMonitorResource inputMonitorResource =
		mInputMonitorResources.get(ev.getDisplayId());
		if (inputMonitorResource != null) {
		inputMonitorResource.mInputEventReceiver.setBatchingEnabled(false);
		}
		if (mIsTrackpadThreeFingerSwipe) {
		// Since trackpad gestures don't have zones, this will be determined later by the
		// direction of the gesture. {@code mIsOnLeftEdge} is set to false to begin with.
		@@ -1099,7 +1136,7 @@ public class EdgeBackGestureHandler implements PluginListener<NavigationEdgeBack
		boolean trackpadGesturesEnabled =
		(mSysUiFlags & SYSUI_STATE_TOUCHPAD_GESTURES_DISABLED) == 0;
		mAllowGesture = isBackAllowedCommon && trackpadGesturesEnabled
		&& isValidTrackpadBackGesture(true /* isTrackpadEvent */);
		&& isValidTrackpadBackGesture(ev.getDisplayId());
		} else {
		mAllowGesture = isBackAllowedCommon && !mUsingThreeButtonNav && isWithinInsets
		&& isWithinTouchRegion(ev) && !isButtonPressFromTrackpad(ev);
		@@ -1210,12 +1247,14 @@ public class EdgeBackGestureHandler implements PluginListener<NavigationEdgeBack
		}

		private void pilferPointers() {
		if (mInputMonitor != null) {
		//TODO(b/382774299): Pilfer pointers on the correct display
		InputMonitorResource inputMonitorResource = mInputMonitorResources.get(mDisplayId);
		if (inputMonitorResource != null) {
		// Capture inputs
		mInputMonitor.pilferPointers();
		inputMonitorResource.mInputMonitorCompat.pilferPointers();
		// Notify FalsingManager that an intentional gesture has occurred.
		mFalsingManager.isFalseTouch(BACK_GESTURE);
		mInputEventReceiver.setBatchingEnabled(true);
		inputMonitorResource.mInputEventReceiver.setBatchingEnabled(true);
		}
		}

		@@ -1344,6 +1383,11 @@ public class EdgeBackGestureHandler implements PluginListener<NavigationEdgeBack
		if (mEdgeBackPlugin != null) {
		mEdgeBackPlugin.dump(pw);
		}
		pw.println(" mInputMonitorResources=" + mInputMonitorResources);
		for (Map.Entry<Integer, InputMonitorResource> inputMonitorResource :
		mInputMonitorResources.entrySet()) {
		inputMonitorResource.getValue().dump("\t", pw);
		}
		}

		private void updateTopActivityPackageName() {
		@@ -1376,6 +1420,33 @@ public class EdgeBackGestureHandler implements PluginListener<NavigationEdgeBack
		}
		}

		private class InputMonitorResource {
		private final int mDisplayId;
		private final InputMonitorCompat mInputMonitorCompat;
		private final InputChannelCompat.InputEventReceiver mInputEventReceiver;

		private InputMonitorResource(int displayId) {
		this.mDisplayId = displayId;
		mInputMonitorCompat = new InputMonitorCompat("edge-swipe", displayId);
		mInputEventReceiver = mInputMonitorCompat.getInputReceiver(mUiThreadContext.getLooper(),
		mUiThreadContext.getChoreographer(), EdgeBackGestureHandler.this::onInputEvent);
		}

		public void dispose() {
		mInputEventReceiver.dispose();
		mInputMonitorCompat.dispose();
		}

		public void dump(String prefix, PrintWriter writer) {
		writer.println(prefix + this);
		}

		@Override
		public String toString() {
		return "InputMonitorResource (displayId=" + mDisplayId + ")";
		}
		}

		private static class LogArray extends ArrayDeque<String> {
		private final int mLength;