Log time difference between power button presses for gesture (1b68e8b7) · Commits · e / os / android_frameworks_base

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

+16 −21

Original line number	Diff line number	Diff line
		@@ -101,8 +101,7 @@ public class GestureLauncherService extends SystemService {
		* Whether camera double tap power button gesture is currently enabled;
		*/
		private boolean mCameraDoubleTapPowerEnabled;
		private long mLastPowerDownWhileNonInteractive;
		private long mLastPowerDownWhileInteractive;
		private long mLastPowerDown;

		public GestureLauncherService(Context context) {
		super(context);
		@@ -252,35 +251,32 @@ public class GestureLauncherService extends SystemService {
		public boolean interceptPowerKeyDown(KeyEvent event, boolean interactive) {
		boolean launched = false;
		boolean intercept = false;
		long doubleTapInterval;
		synchronized (this) {
		if (!mCameraDoubleTapPowerEnabled) {
		mLastPowerDownWhileNonInteractive = 0;
		mLastPowerDownWhileInteractive = 0;
		return false;
		}
		if (event.getEventTime() - mLastPowerDownWhileNonInteractive
		< CAMERA_POWER_DOUBLE_TAP_TIME_MS) {
		launched = true;
		intercept = true;
		} else if (event.getEventTime() - mLastPowerDownWhileInteractive
		< CAMERA_POWER_DOUBLE_TAP_TIME_MS) {
		doubleTapInterval = event.getEventTime() - mLastPowerDown;
		if (mCameraDoubleTapPowerEnabled
		&& doubleTapInterval < CAMERA_POWER_DOUBLE_TAP_TIME_MS) {
		launched = true;
		intercept = interactive;
		}
		mLastPowerDownWhileNonInteractive = interactive ? 0 : event.getEventTime();
		mLastPowerDownWhileInteractive = interactive ? event.getEventTime() : 0;
		mLastPowerDown = event.getEventTime();
		}
		if (launched) {
		Slog.i(TAG, "Power button double tap gesture detected, launching camera.");
		launched = handleCameraLaunchGesture(false /* useWakelock */,
		MetricsLogger.ACTION_DOUBLE_TAP_POWER_CAMERA_GESTURE);
		launched = handleCameraLaunchGesture(false /* useWakelock */);
		if (launched) {
		MetricsLogger.action(mContext, MetricsLogger.ACTION_DOUBLE_TAP_POWER_CAMERA_GESTURE,
		(int) doubleTapInterval);
		}
		}
		MetricsLogger.histogram(mContext, "power_double_tap_interval", (int) doubleTapInterval);
		return intercept && launched;
		}

		/**
		* @return true if camera was launched, false otherwise.
		*/
		private boolean handleCameraLaunchGesture(boolean useWakelock, int logCategory) {
		private boolean handleCameraLaunchGesture(boolean useWakelock) {
		boolean userSetupComplete = Settings.Secure.getInt(mContext.getContentResolver(),
		Settings.Secure.USER_SETUP_COMPLETE, 0) != 0;
		if (!userSetupComplete) {
		@@ -300,7 +296,6 @@ public class GestureLauncherService extends SystemService {
		StatusBarManagerInternal service = LocalServices.getService(
		StatusBarManagerInternal.class);
		service.onCameraLaunchGestureDetected();
		MetricsLogger.action(mContext, logCategory);
		return true;
		}

		@@ -339,8 +334,8 @@ public class GestureLauncherService extends SystemService {
		Slog.d(TAG, String.format("Received a camera launch event: " +
		"values=[%.4f, %.4f, %.4f].", values[0], values[1], values[2]));
		}
		if (handleCameraLaunchGesture(true /* useWakelock */,
		MetricsLogger.ACTION_WIGGLE_CAMERA_GESTURE)) {
		if (handleCameraLaunchGesture(true /* useWakelock */)) {
		MetricsLogger.action(mContext, MetricsLogger.ACTION_WIGGLE_CAMERA_GESTURE);
		trackCameraLaunchEvent(event);
		}
		return;