Inject motion event for temporary fix for clicking through nav bar (11891c99) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStepController.java

+90 −0

Original line number	Diff line number	Diff line
		@@ -34,13 +34,20 @@ import android.content.Context;
		import android.graphics.Canvas;
		import android.graphics.Matrix;
		import android.graphics.Rect;
		import android.hardware.input.InputManager;
		import android.os.RemoteException;
		import android.os.SystemClock;
		import android.provider.Settings;
		import android.util.Log;
		import android.view.InputDevice;
		import android.view.MotionEvent;
		import android.view.View;
		import android.view.ViewGroup;
		import android.view.ViewPropertyAnimator;

		import android.view.WindowManager;
		import android.view.WindowManager.LayoutParams;

		import com.android.systemui.Dependency;
		import com.android.systemui.Interpolators;
		import com.android.systemui.R;
		@@ -64,7 +71,10 @@ public class QuickStepController implements GestureHelper {

		/** Experiment to swipe home button left to execute a back key press */
		private static final String HIDE_BACK_BUTTON_PROP = "quickstepcontroller_hideback";
		private static final String ENABLE_CLICK_THROUGH_NAV_PROP = "quickstepcontroller_clickthrough";
		private static final long BACK_BUTTON_FADE_IN_ALPHA = 150;
		private static final long CLICK_THROUGH_TAP_DELAY = 70;
		private static final long CLICK_THROUGH_TAP_RESET_DELAY = 100;

		/** When the home-swipe-back gesture is disallowed, make it harder to pull */
		private static final float HORIZONTAL_GESTURE_DAMPING = 0.3f;
		@@ -100,6 +110,9 @@ public class QuickStepController implements GestureHelper {
		private float mMinDragLimit;
		private float mDragDampeningFactor;
		private float mEdgeSwipeThreshold;
		private boolean mClickThroughPressed;
		private float mClickThroughPressX;
		private float mClickThroughPressY;

		private NavigationGestureAction mCurrentAction;
		private NavigationGestureAction[] mGestureActions = new NavigationGestureAction[MAX_GESTURES];
		@@ -117,6 +130,19 @@ public class QuickStepController implements GestureHelper {
		mOverviewEventSender = Dependency.get(OverviewProxyService.class);
		}

		private final Runnable mClickThroughSendTap = new Runnable() {
		@Override
		public void run() {
		sendTap(mClickThroughPressX, mClickThroughPressY);
		mNavigationBarView.postDelayed(mClickThroughResetTap, CLICK_THROUGH_TAP_RESET_DELAY);
		}
		};

		private final Runnable mClickThroughResetTap = () -> {
		setWindowTouchable(true);
		mClickThroughPressed = false;
		};

		public void setComponents(NavigationBarView navigationBarView) {
		mNavigationBarView = navigationBarView;

		@@ -320,6 +346,25 @@ public class QuickStepController implements GestureHelper {
		case MotionEvent.ACTION_UP:
		if (mCurrentAction != null) {
		mCurrentAction.endGesture();
		} else if (action == MotionEvent.ACTION_UP
		&& getBoolGlobalSetting(mContext, ENABLE_CLICK_THROUGH_NAV_PROP)
		&& !mClickThroughPressed) {
		// Enable click through functionality where no gesture has been detected and not
		// passed the drag slop so inject a touch event at the same location
		// after making the navigation bar window untouchable. After a some time, the
		// navigation bar will be able to take input events again
		float diffX = Math.abs(event.getX() - mTouchDownX);
		float diffY = Math.abs(event.getY() - mTouchDownY);

		if ((diffX <= NavigationBarCompat.getQuickStepDragSlopPx()
		&& diffY <= NavigationBarCompat.getQuickStepDragSlopPx())) {
		setWindowTouchable(false);
		mClickThroughPressX = event.getRawX();
		mClickThroughPressY = event.getRawY();
		mClickThroughPressed = true;
		mNavigationBarView.postDelayed(mClickThroughSendTap,
		CLICK_THROUGH_TAP_DELAY);
		}
		}

		// Return the hit target back to its original position
		@@ -350,6 +395,19 @@ public class QuickStepController implements GestureHelper {
		return mCurrentAction != null \|\| deadZoneConsumed;
		}

		private void setWindowTouchable(boolean flag) {
		final WindowManager.LayoutParams lp = (WindowManager.LayoutParams)
		((ViewGroup) mNavigationBarView.getParent()).getLayoutParams();
		if (flag) {
		lp.flags &= ~LayoutParams.FLAG_NOT_TOUCHABLE;
		} else {
		lp.flags \|= LayoutParams.FLAG_NOT_TOUCHABLE;
		}
		final WindowManager wm = (WindowManager) mNavigationBarView.getContext()
		.getSystemService(Context.WINDOW_SERVICE);
		wm.updateViewLayout((View) mNavigationBarView.getParent(), lp);
		}

		private boolean isEdgeSwipeAlongNavBar(int touchDown, boolean dragPositiveDirection) {
		// Detect edge swipe from side of 0 -> threshold
		if (dragPositiveDirection) {
		@@ -562,6 +620,38 @@ public class QuickStepController implements GestureHelper {
		return false;
		}

		private void sendTap(float x, float y) {
		long now = SystemClock.uptimeMillis();
		injectMotionEvent(InputDevice.SOURCE_TOUCHSCREEN, MotionEvent.ACTION_DOWN, now, x, y, 1.0f);
		injectMotionEvent(InputDevice.SOURCE_TOUCHSCREEN, MotionEvent.ACTION_UP, now, x, y, 0.0f);
		}

		private int getInputDeviceId(int inputSource) {
		int[] devIds = InputDevice.getDeviceIds();
		for (int devId : devIds) {
		InputDevice inputDev = InputDevice.getDevice(devId);
		if (inputDev.supportsSource(inputSource)) {
		return devId;
		}
		}
		return 0;
		}

		private void injectMotionEvent(int inputSource, int action, long when, float x, float y,
		float pressure) {
		final float defaultSize = 1.0f;
		final int defaultMetaState = 0;
		final float defaultPrecisionX = 1.0f;
		final float defaultPrecisionY = 1.0f;
		final int defaultEdgeFlags = 0;
		MotionEvent event = MotionEvent.obtain(when, when, action, x, y, pressure, defaultSize,
		defaultMetaState, defaultPrecisionX, defaultPrecisionY,
		getInputDeviceId(inputSource), defaultEdgeFlags);
		event.setSource(inputSource);
		InputManager.getInstance().injectInputEvent(event,
		InputManager.INJECT_INPUT_EVENT_MODE_ASYNC);
		}

		private boolean proxyMotionEvents(MotionEvent event) {
		final IOverviewProxy overviewProxy = mOverviewEventSender.getProxy();
		event.transform(mTransformGlobalMatrix);