Merge "Show Letterbox background without rounded corners for transparent activities" into sc-v2-dev am: 44cd0e4664 am: 158b7ac4d3

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16599307

Change-Id: Ibd052e53cdda428ea3c232650c3ccc610a556b80

services/core/java/com/android/server/wm/LetterboxConfiguration.java

@@ -175,7 +175,7 @@ final class LetterboxConfiguration {
      * Overrides corners raidus for activities presented in the letterbox mode. If given value < 0,
      * both it and a value of {@link
      * com.android.internal.R.integer.config_letterboxActivityCornersRadius} will be ignored and
-     * and corners of the activity won't be rounded.
+     * corners of the activity won't be rounded.
      */
     void setLetterboxActivityCornersRadius(int cornersRadius) {
         mLetterboxActivityCornersRadius = cornersRadius;

services/core/java/com/android/server/wm/LetterboxUiController.java

@@ -150,7 +150,7 @@ final class LetterboxUiController {
             if (mLetterbox == null) {
                 mLetterbox = new Letterbox(() -> mActivityRecord.makeChildSurface(null),
                         mActivityRecord.mWmService.mTransactionFactory,
-                        mLetterboxConfiguration::isLetterboxActivityCornersRounded,
+                        this::shouldLetterboxHaveRoundedCorners,
                         this::getLetterboxBackgroundColor,
                         this::hasWallpaperBackgroudForLetterbox,
                         this::getLetterboxWallpaperBlurRadius,
@@ -175,6 +175,13 @@ final class LetterboxUiController {
         }
     }
 
+    private boolean shouldLetterboxHaveRoundedCorners() {
+        // TODO(b/214030873): remove once background is drawn for transparent activities
+        // Letterbox shouldn't have rounded corners if the activity is transparent
+        return mLetterboxConfiguration.isLetterboxActivityCornersRounded()
+                && mActivityRecord.fillsParent();
+    }
+
     float getHorizontalPositionMultiplier(Configuration parentConfiguration) {
         // Don't check resolved configuration because it may not be updated yet during
         // configuration change.
@@ -257,8 +264,6 @@ final class LetterboxUiController {
     @VisibleForTesting
     boolean shouldShowLetterboxUi(WindowState mainWindow) {
         return isSurfaceReadyAndVisible(mainWindow) && mainWindow.areAppWindowBoundsLetterboxed()
-                // Check that an activity isn't transparent.
-                && mActivityRecord.fillsParent()
                 // Check for FLAG_SHOW_WALLPAPER explicitly instead of using
                 // WindowContainer#showWallpaper because the later will return true when this
                 // activity is using blurred wallpaper for letterbox backgroud.