Merge "Allow rotations to portrait on unlocking when unfolded" into tm-qpr-dev am: b8c2e307f7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20896921

Change-Id: I8baed009d9a5358202c10c0fea0c89a400085ffa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

core/java/com/android/internal/view/RotationPolicy.java

@@ -106,7 +106,9 @@ public final class RotationPolicy {
      * Enables or disables rotation lock from the system UI toggle.
      */
     public static void setRotationLock(Context context, final boolean enabled) {
-        final int rotation = areAllRotationsAllowed(context) ? CURRENT_ROTATION : NATURAL_ROTATION;
+        final int rotation = areAllRotationsAllowed(context)
+                || useCurrentRotationOnRotationLockChange(context) ? CURRENT_ROTATION
+                : NATURAL_ROTATION;
         setRotationLockAtAngle(context, enabled, rotation);
     }
 
@@ -139,6 +141,11 @@ public final class RotationPolicy {
         return context.getResources().getBoolean(R.bool.config_allowAllRotations);
     }
 
+    private static boolean useCurrentRotationOnRotationLockChange(Context context) {
+        return context.getResources().getBoolean(
+                R.bool.config_useCurrentRotationOnRotationLockChange);
+    }
+
     private static void setRotationLock(final boolean enabled, final int rotation) {
         AsyncTask.execute(new Runnable() {
             @Override

core/res/res/values/config.xml

@@ -560,6 +560,10 @@
          rotations as the default behavior. -->
     <bool name="config_allowAllRotations">false</bool>
 
+    <!-- If false and config_allowAllRotations is false, the screen will rotate to the natural
+         orientation of the device when the auto-rotate policy is toggled. -->
+    <bool name="config_useCurrentRotationOnRotationLockChange">false</bool>
+
     <!-- If true, the direction rotation is applied to get to an application's requested
          orientation is reversed.  Normally, the model is that landscape is
          clockwise from portrait; thus on a portrait device an app requesting

core/res/res/values/symbols.xml

@@ -1721,6 +1721,7 @@
   <java-symbol type="attr" name="dialogTitleDecorLayout" />
   <java-symbol type="attr" name="dialogTitleIconsDecorLayout" />
   <java-symbol type="bool" name="config_allowAllRotations" />
+  <java-symbol type="bool" name="config_useCurrentRotationOnRotationLockChange"/>
   <java-symbol type="bool" name="config_annoy_dianne" />
   <java-symbol type="bool" name="config_startDreamImmediatelyOnDock" />
   <java-symbol type="bool" name="config_carDockEnablesAccelerometer" />