Merge "Detect 5 tap power button click and log in logcat" (558dd8eb) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/GestureLauncherService.java

+58 −22

Original line number	Diff line number	Diff line
		@@ -75,6 +75,16 @@ public class GestureLauncherService extends SystemService {
		*/
		@VisibleForTesting static final long POWER_SHORT_TAP_SEQUENCE_MAX_INTERVAL_MS = 500;

		/**
		* Number of taps required to launch panic ui.
		*/
		private static final int PANIC_POWER_TAP_COUNT_THRESHOLD = 5;

		/**
		* Number of taps required to launch camera shortcut.
		*/
		private static final int CAMERA_POWER_TAP_COUNT_THRESHOLD = 2;

		/** The listener that receives the gesture event. */
		private final GestureEventListener mGestureListener = new GestureEventListener();
		private final CameraLiftTriggerEventListener mCameraLiftTriggerListener =
		@@ -135,6 +145,7 @@ public class GestureLauncherService extends SystemService {

		private long mLastPowerDown;
		private int mPowerButtonConsecutiveTaps;
		private int mPowerButtonSlowConsecutiveTaps;

		public GestureLauncherService(Context context) {
		this(context, new MetricsLogger());
		@@ -350,9 +361,8 @@ public class GestureLauncherService extends SystemService {
		* Whether to enable panic button gesture.
		*/
		public static boolean isPanicButtonGestureEnabled(Context context, int userId) {
		return isCameraLaunchEnabled(context.getResources())
		&& (Settings.Secure.getIntForUser(context.getContentResolver(),
		Settings.Secure.PANIC_GESTURE_ENABLED, 0, userId) != 0);
		return Settings.Secure.getIntForUser(context.getContentResolver(),
		Settings.Secure.PANIC_GESTURE_ENABLED, 0, userId) != 0;
		}

		/**
		@@ -384,6 +394,13 @@ public class GestureLauncherService extends SystemService {
		isCameraLiftTriggerEnabled(resources);
		}

		/**
		* Attempts to intercept power key down event by detecting certain gesture patterns
		*
		* @param interactive true if the event's policy contains {@code FLAG_INTERACTIVE}
		* @param outLaunched true if some action is taken as part of the key intercept (eg, app launch)
		* @return true if the key down event is intercepted
		*/
		public boolean interceptPowerKeyDown(KeyEvent event, boolean interactive,
		MutableBoolean outLaunched) {
		if (event.isLongPress()) {
		@@ -392,41 +409,60 @@ public class GestureLauncherService extends SystemService {
		// taps or consecutive taps, so we want to ignore the long press event.
		return false;
		}
		boolean launched = false;
		boolean launchCamera = false;
		boolean launchPanic = false;
		boolean intercept = false;
		long powerTapInterval;
		synchronized (this) {
		powerTapInterval = event.getEventTime() - mLastPowerDown;
		if (mCameraDoubleTapPowerEnabled
		&& powerTapInterval < CAMERA_POWER_DOUBLE_TAP_MAX_TIME_MS) {
		launched = true;
		intercept = interactive;
		mPowerButtonConsecutiveTaps++;
		} else if (powerTapInterval < POWER_SHORT_TAP_SEQUENCE_MAX_INTERVAL_MS) {
		mPowerButtonConsecutiveTaps++;
		} else {
		mLastPowerDown = event.getEventTime();
		if (powerTapInterval >= POWER_SHORT_TAP_SEQUENCE_MAX_INTERVAL_MS) {
		// Tap too slow, reset consecutive tap counts.
		mPowerButtonConsecutiveTaps = 1;
		mPowerButtonSlowConsecutiveTaps = 1;
		} else if (powerTapInterval >= CAMERA_POWER_DOUBLE_TAP_MAX_TIME_MS) {
		// Tap too slow for shortcuts
		mPowerButtonConsecutiveTaps = 1;
		mPowerButtonSlowConsecutiveTaps++;
		} else {
		// Fast consecutive tap
		mPowerButtonConsecutiveTaps++;
		mPowerButtonSlowConsecutiveTaps++;
		}
		if (mPanicButtonGestureEnabled
		&& mPowerButtonConsecutiveTaps == PANIC_POWER_TAP_COUNT_THRESHOLD) {
		launchPanic = true;
		intercept = interactive;
		} else if (mCameraDoubleTapPowerEnabled
		&& powerTapInterval < CAMERA_POWER_DOUBLE_TAP_MAX_TIME_MS
		&& mPowerButtonConsecutiveTaps == CAMERA_POWER_TAP_COUNT_THRESHOLD) {
		launchCamera = true;
		intercept = interactive;
		}
		mLastPowerDown = event.getEventTime();
		}
		if (DBG && mPowerButtonConsecutiveTaps > 1) {
		Slog.i(TAG, Long.valueOf(mPowerButtonConsecutiveTaps) +
		" consecutive power button taps detected");
		if (mPowerButtonConsecutiveTaps > 1 \|\| mPowerButtonSlowConsecutiveTaps > 1) {
		Slog.i(TAG, Long.valueOf(mPowerButtonConsecutiveTaps)
		+ " consecutive power button taps detected, "
		+ Long.valueOf(mPowerButtonSlowConsecutiveTaps)
		+ " consecutive slow power button taps detected");
		}
		if (launched) {
		if (launchCamera) {
		Slog.i(TAG, "Power button double tap gesture detected, launching camera. Interval="
		+ powerTapInterval + "ms");
		launched = handleCameraGesture(false /* useWakelock */,
		launchCamera = handleCameraGesture(false /* useWakelock */,
		StatusBarManager.CAMERA_LAUNCH_SOURCE_POWER_DOUBLE_TAP);
		if (launched) {
		if (launchCamera) {
		mMetricsLogger.action(MetricsEvent.ACTION_DOUBLE_TAP_POWER_CAMERA_GESTURE,
		(int) powerTapInterval);
		}
		} else if (launchPanic) {
		Slog.i(TAG, "Panic gesture detected, launching panic.");
		}
		mMetricsLogger.histogram("power_consecutive_short_tap_count", mPowerButtonConsecutiveTaps);
		mMetricsLogger.histogram("power_consecutive_short_tap_count",
		mPowerButtonSlowConsecutiveTaps);
		mMetricsLogger.histogram("power_double_tap_interval", (int) powerTapInterval);
		outLaunched.value = launched;
		return intercept && launched;
		outLaunched.value = launchCamera \|\| launchPanic;
		return intercept && (launchCamera \|\| launchPanic);
		}

		/**

services/tests/servicestests/src/com/android/server/GestureLauncherServiceTest.java

+22 −0

Original line number	Diff line number	Diff line
		@@ -152,6 +152,20 @@ public class GestureLauncherServiceTest {
		mContext, FAKE_USER_ID));
		}

		@Test
		public void testIsPanicButtonGestureEnabled_settingDisabled() {
		withPanicGestureEnabledSettingValue(false);
		assertFalse(mGestureLauncherService.isPanicButtonGestureEnabled(
		mContext, FAKE_USER_ID));
		}

		@Test
		public void testIsPanicButtonGestureEnabled_settingEnabled() {
		withPanicGestureEnabledSettingValue(true);
		assertTrue(mGestureLauncherService.isPanicButtonGestureEnabled(
		mContext, FAKE_USER_ID));
		}

		@Test
		public void testHandleCameraLaunchGesture_userSetupComplete() {
		withUserSetupCompleteValue(true);
		@@ -882,6 +896,14 @@ public class GestureLauncherServiceTest {
		UserHandle.USER_CURRENT);
		}

		private void withPanicGestureEnabledSettingValue(boolean enable) {
		Settings.Secure.putIntForUser(
		mContentResolver,
		Settings.Secure.PANIC_GESTURE_ENABLED,
		enable ? 1 : 0,
		UserHandle.USER_CURRENT);
		}

		private void withUserSetupCompleteValue(boolean userSetupComplete) {
		int userSetupCompleteValue = userSetupComplete ? 1 : 0;
		Settings.Secure.putIntForUser(