Merge "Fising launcher stuck on blur" into udc-dev am: ef6fbb5be8

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/23621509

Change-Id: If64c755fcc56c9c66649b709f518e70d3e03d356
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

quickstep/src/com/android/launcher3/QuickstepTransitionManager.java

@@ -2042,10 +2042,5 @@ public class QuickstepTransitionManager implements OnDeviceProfileChangeListener
             setCrossWindowBlursEnabled(
                     CrossWindowBlurListeners.getInstance().isCrossWindowBlurEnabled());
         }
-
-        @Override
-        public void setSurface(SurfaceControl surface) {
-            super.setSurface(surface);
-        }
     }
 }

quickstep/src/com/android/launcher3/statehandlers/DepthController.java

@@ -158,6 +158,12 @@ public class DepthController extends BaseDepthController implements StateHandler
         super.applyDepthAndBlur();
     }
 
+    @Override
+    protected void onInvalidSurface() {
+        // Lets wait for surface to become valid again
+        mLauncher.getDragLayer().getViewTreeObserver().addOnDrawListener(mOnDrawListener);
+    }
+
     @Override
     public void onMultiWindowModeChanged(boolean isInMultiWindowMode) {
         mIgnoreStateChangesDuringMultiWindowAnimation = true;

quickstep/src/com/android/quickstep/util/BaseDepthController.java

@@ -88,6 +88,8 @@ public class BaseDepthController {
      */
     protected boolean mInEarlyWakeUp;
 
+    private boolean mWaitingOnSurfaceValidity;
+
     public BaseDepthController(Launcher activity) {
         mLauncher = activity;
         mMaxBlurRadius = activity.getResources().getInteger(R.integer.max_depth_blur_radius);
@@ -115,6 +117,8 @@ public class BaseDepthController {
         }
     }
 
+    protected void onInvalidSurface() { }
+
     protected void applyDepthAndBlur() {
         float depth = mDepth;
         IBinder windowToken = mLauncher.getRootView().getWindowToken();
@@ -128,9 +132,15 @@ public class BaseDepthController {
         if (!BlurUtils.supportsBlursOnWindows()) {
             return;
         }
-        if (mSurface == null || !mSurface.isValid()) {
+        if (mSurface == null) {
             return;
         }
+        if (!mSurface.isValid()) {
+            mWaitingOnSurfaceValidity = true;
+            onInvalidSurface();
+            return;
+        }
+        mWaitingOnSurfaceValidity = false;
         boolean hasOpaqueBg = mLauncher.getScrimView().isFullyOpaque();
         boolean isSurfaceOpaque = !mHasContentBehindLauncher && hasOpaqueBg && !mPauseBlurs;
 
@@ -174,7 +184,7 @@ public class BaseDepthController {
      * Sets the specified app target surface to apply the blur to.
      */
     protected void setSurface(SurfaceControl surface) {
-        if (mSurface != surface) {
+        if (mSurface != surface || mWaitingOnSurfaceValidity) {
             mSurface = surface;
             applyDepthAndBlur();
         }