Merge "Fix invalid active window if accessibility framework doesn't track windows" into tm-dev am: a7f5aa5be7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17755779

Change-Id: I0a32be9e53d4bcd3134c188c8380acf89ad11c2b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

services/accessibility/java/com/android/server/accessibility/AccessibilityWindowManager.java

@@ -1661,7 +1661,7 @@ public class AccessibilityWindowManager {
         if (traceWMEnabled()) {
             logTraceWM("getFocusedWindowToken", "");
         }
-        final IBinder token = mWindowManagerInternal.getFocusedWindowToken();
+        final IBinder token = mWindowManagerInternal.getFocusedWindowTokenFromWindowStates();
         synchronized (mLock) {
             return findWindowIdLocked(userId, token);
         }

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

@@ -432,6 +432,14 @@ public abstract class WindowManagerInternal {
      */
     public abstract IBinder getFocusedWindowToken();
 
+    /**
+     * Gets the token of the window that has input focus. It is from the focused
+     * {@link WindowState}.
+     *
+     * @return The token.
+     */
+    public abstract IBinder getFocusedWindowTokenFromWindowStates();
+
     /**
      * @return Whether the keyguard is engaged.
      */

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

@@ -7681,6 +7681,18 @@ public class WindowManagerService extends IWindowManager.Stub
             }
         }
 
+        // TODO (b/229837707): Delete this method after changing the solution.
+        @Override
+        public IBinder getFocusedWindowTokenFromWindowStates() {
+            synchronized (mGlobalLock) {
+                final WindowState windowState = getFocusedWindowLocked();
+                if (windowState != null) {
+                    return windowState.mClient.asBinder();
+                }
+                return null;
+            }
+        }
+
         @Override
         public boolean isKeyguardLocked() {
             return WindowManagerService.this.isKeyguardLocked();

services/tests/servicestests/src/com/android/server/accessibility/AccessibilityWindowManagerTest.java

@@ -543,7 +543,7 @@ public class AccessibilityWindowManagerTest {
                 mWindowInfos.get(Display.DEFAULT_DISPLAY).get(DEFAULT_FOCUSED_INDEX + 1).token;
         final int eventWindowId = mA11yWindowManager.findWindowIdLocked(
                 USER_SYSTEM_ID, eventWindowToken);
-        when(mMockWindowManagerInternal.getFocusedWindowToken())
+        when(mMockWindowManagerInternal.getFocusedWindowTokenFromWindowStates())
                 .thenReturn(eventWindowToken);
 
         final int noUse = 0;
@@ -679,7 +679,7 @@ public class AccessibilityWindowManagerTest {
                 mWindowInfos.get(Display.DEFAULT_DISPLAY).get(DEFAULT_FOCUSED_INDEX).token;
         final int defaultFocusWindowId = mA11yWindowManager.findWindowIdLocked(
                 USER_SYSTEM_ID, defaultFocusWinToken);
-        when(mMockWindowManagerInternal.getFocusedWindowToken())
+        when(mMockWindowManagerInternal.getFocusedWindowTokenFromWindowStates())
                 .thenReturn(defaultFocusWinToken);
         final int newFocusWindowId = getWindowIdFromWindowInfosForDisplay(Display.DEFAULT_DISPLAY,
                 DEFAULT_FOCUSED_INDEX + 1);