Merge "Report pending change to wallpaper when being visible" into tm-qpr-dev am: 1abdd8afcc am: 002280fe83

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21920183

Change-Id: I341ab361c65a9db9bc0c3828131e95a3d49a85dc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

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

@@ -4523,7 +4523,7 @@ class WindowState extends WindowContainer<WindowState> implements WindowManagerP
 
     void requestUpdateWallpaperIfNeeded() {
         final DisplayContent dc = getDisplayContent();
-        if (dc != null && hasWallpaper()) {
+        if (dc != null && ((mIsWallpaper && !mLastConfigReportedToClient) || hasWallpaper())) {
             dc.pendingLayoutChanges |= FINISH_LAYOUT_REDO_WALLPAPER;
             dc.setLayoutNeeded();
             mWmService.mWindowPlacerLocked.requestTraversal();

services/tests/wmtests/src/com/android/server/wm/WallpaperControllerTests.java

@@ -52,6 +52,7 @@ import android.graphics.Rect;
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.platform.test.annotations.Presubmit;
+import android.util.MergedConfiguration;
 import android.view.DisplayCutout;
 import android.view.DisplayInfo;
 import android.view.DisplayShape;
@@ -62,6 +63,7 @@ import android.view.RoundedCorners;
 import android.view.Surface;
 import android.view.SurfaceControl;
 import android.view.WindowManager;
+import android.window.ClientWindowFrames;
 
 import androidx.test.filters.SmallTest;
 
@@ -339,6 +341,29 @@ public class WallpaperControllerTests extends WindowTestsBase {
         assertEquals(appWin, mDisplayContent.mWallpaperController.getWallpaperTarget());
     }
 
+    @Test
+    public void testWallpaperReportConfigChange() {
+        final WindowState wallpaperWindow = createWallpaperWindow(mDisplayContent);
+        createWallpaperTargetWindow(mDisplayContent);
+        final WallpaperWindowToken wallpaperToken = wallpaperWindow.mToken.asWallpaperToken();
+        makeWindowVisible(wallpaperWindow);
+        wallpaperWindow.mLayoutSeq = mDisplayContent.mLayoutSeq;
+        // Assume the token was invisible and the latest config was reported.
+        wallpaperToken.commitVisibility(false);
+        wallpaperWindow.fillClientWindowFramesAndConfiguration(new ClientWindowFrames(),
+                new MergedConfiguration(), true /* useLatestConfig */, false /* relayoutVisible */);
+        assertTrue(wallpaperWindow.isLastConfigReportedToClient());
+
+        final Rect bounds = wallpaperToken.getBounds();
+        wallpaperToken.setBounds(new Rect(0, 0, bounds.width() / 2, bounds.height() / 2));
+        assertFalse(wallpaperWindow.isLastConfigReportedToClient());
+        // If there is a pending config change when changing to visible, it should tell the client
+        // to redraw by WindowState#reportResized.
+        wallpaperToken.commitVisibility(true);
+        waitUntilHandlersIdle();
+        assertTrue(wallpaperWindow.isLastConfigReportedToClient());
+    }
+
     @Test
     public void testWallpaperTokenVisibility() {
         final DisplayContent dc = mWm.mRoot.getDefaultDisplay();