Merge "Skip IME initialization when received the token that already registered" into qt-dev

am: 9bb2607703

Change-Id: I9746ca99bc03a83beb6549605394b6760d48b835

core/java/android/inputmethodservice/InputMethodService.java

@@ -472,8 +472,12 @@ public class InputMethodService extends AbstractInputMethodService {
          */
         @MainThread
         @Override
-        public final void initializeInternal(IBinder token, int displayId,
+        public final void initializeInternal(@NonNull IBinder token, int displayId,
                 IInputMethodPrivilegedOperations privilegedOperations) {
+            if (InputMethodPrivilegedOperationsRegistry.isRegistered(token)) {
+                Log.w(TAG, "The token has already registered, ignore this initialization.");
+                return;
+            }
             mPrivOps.set(privilegedOperations);
             InputMethodPrivilegedOperationsRegistry.put(token, mPrivOps);
             updateInputMethodDisplay(displayId);

core/java/com/android/internal/inputmethod/InputMethodPrivilegedOperationsRegistry.java

@@ -132,4 +132,21 @@ public final class InputMethodPrivilegedOperationsRegistry {
             }
         }
     }
+
+    /**
+     * Check the given IME token registration status.
+     *
+     * @param token IME token
+     * @return {@code true} when the IME token has already registered
+     *         {@link InputMethodPrivilegedOperations}, {@code false} otherwise.
+     */
+    @AnyThread
+    public static boolean isRegistered(IBinder token) {
+        synchronized (sLock) {
+            if (sRegistry == null) {
+                return false;
+            }
+            return sRegistry.containsKey(token);
+        }
+    }
 }