Remove updateImeDisplayId

After InputMethodService migrated to WindowProviderService,
the display is initialized by getInitialDisplayId().
Therefore, we don't need updateImeDisplayId() to initialize
InputMethodService's Display anymore.

Test: atest CtsInputMethodTestCases MultiDisplaySystemDecorationTests
Bug: 149463653

Change-Id: Ia78139b5defc48c8b0354fc1e212eeb38fd71ba4
diff --git a/core/java/android/inputmethodservice/IInputMethodWrapper.java b/core/java/android/inputmethodservice/IInputMethodWrapper.java
index 9198eb7..89612fe 100644
--- a/core/java/android/inputmethodservice/IInputMethodWrapper.java
+++ b/core/java/android/inputmethodservice/IInputMethodWrapper.java
@@ -170,8 +170,8 @@
             case DO_INITIALIZE_INTERNAL: {
                 SomeArgs args = (SomeArgs) msg.obj;
                 try {
-                    inputMethod.initializeInternal((IBinder) args.arg1, msg.arg1,
-                            (IInputMethodPrivilegedOperations) args.arg2, (int) args.arg3);
+                    inputMethod.initializeInternal((IBinder) args.arg1,
+                            (IInputMethodPrivilegedOperations) args.arg2, msg.arg1);
                 } finally {
                     args.recycle();
                 }
@@ -279,11 +279,10 @@
 
     @BinderThread
     @Override
-    public void initializeInternal(IBinder token, int displayId,
-            IInputMethodPrivilegedOperations privOps, int configChanges) {
+    public void initializeInternal(IBinder token, IInputMethodPrivilegedOperations privOps,
+            int configChanges) {
         mCaller.executeOrSendMessage(
-                mCaller.obtainMessageIOOO(DO_INITIALIZE_INTERNAL, displayId, token, privOps,
-                        configChanges));
+                mCaller.obtainMessageIOO(DO_INITIALIZE_INTERNAL, configChanges, token, privOps));
     }
 
     @BinderThread
diff --git a/core/java/android/inputmethodservice/InputMethodService.java b/core/java/android/inputmethodservice/InputMethodService.java
index 18c6256..42fa9fb 100644
--- a/core/java/android/inputmethodservice/InputMethodService.java
+++ b/core/java/android/inputmethodservice/InputMethodService.java
@@ -589,7 +589,7 @@
          */
         @MainThread
         @Override
-        public final void initializeInternal(@NonNull IBinder token, int displayId,
+        public final void initializeInternal(@NonNull IBinder token,
                 IInputMethodPrivilegedOperations privilegedOperations, int configChanges) {
             if (InputMethodPrivilegedOperationsRegistry.isRegistered(token)) {
                 Log.w(TAG, "The token has already registered, ignore this initialization.");
@@ -599,7 +599,6 @@
             mConfigTracker.onInitialize(configChanges);
             mPrivOps.set(privilegedOperations);
             InputMethodPrivilegedOperationsRegistry.put(token, mPrivOps);
-            updateInputMethodDisplay(displayId);
             attachToken(token);
             Trace.traceEnd(TRACE_TAG_WINDOW_MANAGER);
         }
@@ -634,25 +633,6 @@
             mWindow.setToken(token);
         }
 
-        // TODO(b/149463653): remove updateInputMethodDisplay(int displayId) since we'll get the
-        // right display by attachToWindowToken
-        /**
-         * {@inheritDoc}
-         * @hide
-         */
-        @MainThread
-        @Override
-        public void updateInputMethodDisplay(int displayId) {
-            if (getDisplayId() == displayId) {
-                return;
-            }
-            // Update display for adding IME window to the right display.
-            // TODO(b/111364446) Need to address context lifecycle issue if need to re-create
-            // for update resources & configuration correctly when show soft input
-            // in non-default display.
-            updateDisplay(displayId);
-        }
-
         /**
          * {@inheritDoc}
          *
diff --git a/core/java/android/view/inputmethod/InputMethod.java b/core/java/android/view/inputmethod/InputMethod.java
index d2db0df..5b2068f 100644
--- a/core/java/android/view/inputmethod/InputMethod.java
+++ b/core/java/android/view/inputmethod/InputMethod.java
@@ -96,8 +96,6 @@
      *
      * @param token special token for the system to identify
      *              {@link InputMethodService}
-     * @param displayId The id of the display that current IME shown.
-     *                  Used for {{@link #updateInputMethodDisplay(int)}}
      * @param privilegedOperations IPC endpoint to do some privileged
      *                             operations that are allowed only to the
      *                             current IME.
@@ -105,9 +103,8 @@
      * @hide
      */
     @MainThread
-    default void initializeInternal(IBinder token, int displayId,
+    default void initializeInternal(IBinder token,
             IInputMethodPrivilegedOperations privilegedOperations, int configChanges) {
-        updateInputMethodDisplay(displayId);
         attachToken(token);
     }
 
@@ -143,16 +140,6 @@
     public void attachToken(IBinder token);
 
     /**
-     * Update context display according to given displayId.
-     *
-     * @param displayId The id of the display that need to update for context.
-     * @hide
-     */
-    @MainThread
-    default void updateInputMethodDisplay(int displayId) {
-    }
-
-    /**
      * Bind a new application environment in to the input method, so that it
      * can later start and stop input processing.
      * Typically this method is called when this input method is enabled in an
diff --git a/core/java/com/android/internal/view/IInputMethod.aidl b/core/java/com/android/internal/view/IInputMethod.aidl
index 8d82e33..5354afbd6 100644
--- a/core/java/com/android/internal/view/IInputMethod.aidl
+++ b/core/java/com/android/internal/view/IInputMethod.aidl
@@ -35,7 +35,7 @@
  * {@hide}
  */
 oneway interface IInputMethod {
-    void initializeInternal(IBinder token, int displayId, IInputMethodPrivilegedOperations privOps,
+    void initializeInternal(IBinder token, IInputMethodPrivilegedOperations privOps,
              int configChanges);
 
     void onCreateInlineSuggestionsRequest(in InlineSuggestionsRequestInfo requestInfo,
diff --git a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
index 457c94e..96a9a6e 100644
--- a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
+++ b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
@@ -2544,9 +2544,8 @@
                 }
                 if (DEBUG) Slog.v(TAG, "Initiating attach with token: " + mCurToken);
                 // Dispatch display id for InputMethodService to update context display.
-                executeOrSendMessage(mCurMethod, mCaller.obtainMessageIOOO(
-                        MSG_INITIALIZE_IME, mCurTokenDisplayId, mCurMethod, mCurToken,
-                        mMethodMap.get(mCurMethodId).getConfigChanges()));
+                executeOrSendMessage(mCurMethod, mCaller.obtainMessageIOO(MSG_INITIALIZE_IME,
+                        mMethodMap.get(mCurMethodId).getConfigChanges(), mCurMethod, mCurToken));
                 scheduleNotifyImeUidToAudioService(mCurMethodUid);
                 if (mCurClient != null) {
                     clearClientSessionLocked(mCurClient);
@@ -4364,12 +4363,11 @@
                 try {
                     if (DEBUG) {
                         Slog.v(TAG, "Sending attach of token: " + args.arg2 + " for display: "
-                                + msg.arg1);
+                                + mCurTokenDisplayId);
                     }
                     final IBinder token = (IBinder) args.arg2;
-                    ((IInputMethod) args.arg1).initializeInternal(token, msg.arg1,
-                            new InputMethodPrivilegedOperationsImpl(this, token),
-                            (int) args.arg3);
+                    ((IInputMethod) args.arg1).initializeInternal(token,
+                            new InputMethodPrivilegedOperationsImpl(this, token), msg.arg1);
                 } catch (RemoteException e) {
                 }
                 args.recycle();