Support "seascape" rotation for "landscape-only" apps (a7bfe6ad) · Commits · e / os / android_frameworks_base

policy/src/com/android/internal/policy/impl/PhoneWindowManager.java

+35 −10

Original line number	Diff line number	Diff line
		@@ -286,7 +286,8 @@ public class PhoneWindowManager implements WindowManagerPolicy {
		// (See Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR.)
		int mIncallPowerBehavior;

		int mLandscapeRotation = -1;
		int mLandscapeRotation = -1; // default landscape rotation
		int mSeascapeRotation = -1; // "other" landscape rotation, 180 degrees from mLandscapeRotation
		int mPortraitRotation = -1;

		// Nothing to see here, move along...
		@@ -356,9 +357,12 @@ public class PhoneWindowManager implements WindowManagerPolicy {
		return true;
		}
		// The user preference says we can rotate, and the app is willing to rotate.
		// Note we include SCREEN_ORIENTATION_LANDSCAPE since we can use the sensor to choose
		// between the two possible landscape rotations.
		if (mAccelerometerDefault != 0 &&
		(appOrientation == ActivityInfo.SCREEN_ORIENTATION_USER
		\|\| appOrientation == ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED)) {
		\|\| appOrientation == ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED
		\|\| appOrientation == ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE)) {
		return true;
		}
		// We're in a dock that has a rotation affinity, an the app is willing to rotate.
		@@ -367,7 +371,8 @@ public class PhoneWindowManager implements WindowManagerPolicy {
		// Note we override the nosensor flag here.
		if (appOrientation == ActivityInfo.SCREEN_ORIENTATION_USER
		\|\| appOrientation == ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED
		\|\| appOrientation == ActivityInfo.SCREEN_ORIENTATION_NOSENSOR) {
		\|\| appOrientation == ActivityInfo.SCREEN_ORIENTATION_NOSENSOR
		\|\| appOrientation == ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE) {
		return true;
		}
		}
		@@ -2053,20 +2058,20 @@ public class PhoneWindowManager implements WindowManagerPolicy {
		if (d.getWidth() > d.getHeight()) {
		mPortraitRotation = Surface.ROTATION_90;
		mLandscapeRotation = Surface.ROTATION_0;
		mSeascapeRotation = Surface.ROTATION_180;
		} else {
		mPortraitRotation = Surface.ROTATION_0;
		mLandscapeRotation = Surface.ROTATION_90;
		mSeascapeRotation = Surface.ROTATION_270;
		}
		}

		synchronized (mLock) {
		switch (orientation) {
		case ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE:
		//always return landscape if orientation set to landscape
		return mLandscapeRotation;
		case ActivityInfo.SCREEN_ORIENTATION_PORTRAIT:
		if (orientation == ActivityInfo.SCREEN_ORIENTATION_PORTRAIT) {
		//always return portrait if orientation set to portrait
		return mPortraitRotation;
		} else if (orientation == ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE) {
		return getCurrentLandscapeRotation(lastRotation);
		}
		// case for nosensor meaning ignore sensor and consider only lid
		// or orientation sensor disabled
		@@ -2086,6 +2091,26 @@ public class PhoneWindowManager implements WindowManagerPolicy {
		}
		}

		private int getCurrentLandscapeRotation(int lastRotation) {
		// landscape-only apps can take either landscape rotation
		if (useSensorForOrientationLp(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE)) {
		int sensorRotation = mOrientationListener.getCurrentRotation(lastRotation);
		if (isLandscapeOrSeascape(sensorRotation)) {
		return sensorRotation;
		}
		}
		// try to preserve the old rotation if it was landscape
		if (isLandscapeOrSeascape(lastRotation)) {
		return lastRotation;
		}
		// default to one of the two landscape rotations
		return mLandscapeRotation;
		}

		private boolean isLandscapeOrSeascape(int sensorRotation) {
		return sensorRotation == mLandscapeRotation \|\| sensorRotation == mSeascapeRotation;
		}

		public boolean detectSafeMode() {
		try {
		int menuState = mWindowManager.getKeycodeState(KeyEvent.KEYCODE_MENU);