Initialize ImsConfigurationTracker when IME#onCreate

To parse InputMethod_configChanges locally without waiting system
callback with initializeInternal, in case IME#mInputView may not
able to call resetStateForNewConfiguration in time before
IME#initializeInternal when it's required.

Fix: 260198823
Test: atest InputMethodServiceTest
Change-Id: I0268360f1b60ebc1f2676d3edab1910a9ce0f050

core/java/android/inputmethodservice/InputMethodService.java

@@ -70,11 +70,14 @@ import android.app.compat.CompatChanges;
 import android.compat.annotation.ChangeId;
 import android.compat.annotation.EnabledSince;
 import android.compat.annotation.UnsupportedAppUsage;
+import android.content.ComponentName;
 import android.content.Context;
 import android.content.pm.PackageManager;
+import android.content.pm.ServiceInfo;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.content.res.TypedArray;
+import android.content.res.XmlResourceParser;
 import android.database.ContentObserver;
 import android.graphics.Rect;
 import android.graphics.Region;
@@ -98,6 +101,7 @@ import android.text.method.MovementMethod;
 import android.util.Log;
 import android.util.PrintWriterPrinter;
 import android.util.Printer;
+import android.util.Xml;
 import android.util.proto.ProtoOutputStream;
 import android.view.BatchedInputEventReceiver.SimpleBatchedInputEventReceiver;
 import android.view.Choreographer;
@@ -158,6 +162,8 @@ import com.android.internal.inputmethod.InputMethodPrivilegedOperationsRegistry;
 import com.android.internal.inputmethod.SoftInputShowHideReason;
 import com.android.internal.util.RingBuffer;
 
+import org.xmlpull.v1.XmlPullParserException;
+
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.lang.annotation.Retention;
@@ -730,7 +736,6 @@ public class InputMethodService extends AbstractInputMethodService {
         @Override
         public final void initializeInternal(@NonNull IInputMethod.InitParams params) {
             Trace.traceBegin(TRACE_TAG_WINDOW_MANAGER, "IMS.initializeInternal");
-            mConfigTracker.onInitialize(params.configChanges);
             mPrivOps.set(params.privilegedOperations);
             InputMethodPrivilegedOperationsRegistry.put(params.token, mPrivOps);
             mNavigationBarController.onNavButtonFlagsChanged(params.navigationBarFlags);
@@ -1601,6 +1606,8 @@ public class InputMethodService extends AbstractInputMethodService {
         mHideNavBarForKeyboard = getApplicationContext().getResources().getBoolean(
                 com.android.internal.R.bool.config_hideNavBarForKeyboard);
 
+        initConfigurationTracker();
+
         // 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.
@@ -1656,6 +1663,36 @@ public class InputMethodService extends AbstractInputMethodService {
         Trace.traceEnd(TRACE_TAG_WINDOW_MANAGER);
     }
 
+    private void initConfigurationTracker() {
+        final int flags = PackageManager.GET_META_DATA
+                | PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS;
+        final ComponentName imeComponent = new ComponentName(
+                getPackageName(), getClass().getName());
+        final String imeId = imeComponent.flattenToShortString();
+        final ServiceInfo si;
+        try {
+            si = getPackageManager().getServiceInfo(imeComponent,
+                    PackageManager.ComponentInfoFlags.of(flags));
+        } catch (PackageManager.NameNotFoundException e) {
+            Log.wtf(TAG, "Unable to find input method " + imeId, e);
+            return;
+        }
+        try (XmlResourceParser parser = si.loadXmlMetaData(getPackageManager(),
+                InputMethod.SERVICE_META_DATA);
+             TypedArray sa = getResources().obtainAttributes(Xml.asAttributeSet(parser),
+                     com.android.internal.R.styleable.InputMethod)) {
+            if (parser == null) {
+                throw new XmlPullParserException(
+                        "No " + InputMethod.SERVICE_META_DATA + " meta-data");
+            }
+            final int handledConfigChanges = sa.getInt(
+                    com.android.internal.R.styleable.InputMethod_configChanges, 0);
+            mConfigTracker.onInitialize(handledConfigChanges);
+        } catch (Exception e) {
+            Log.wtf(TAG, "Unable to load input method " + imeId, e);
+        }
+    }
+
     /**
      * This is a hook that subclasses can use to perform initialization of
      * their interface.  It is called for you prior to any of your UI objects

core/java/com/android/internal/inputmethod/IInputMethod.aidl

@@ -40,7 +40,6 @@ oneway interface IInputMethod {
     parcelable InitParams {
         IBinder token;
         IInputMethodPrivilegedOperations privilegedOperations;
-        int configChanges;
         int navigationBarFlags;
     }
 

services/core/java/com/android/server/inputmethod/IInputMethodInvoker.java

@@ -110,11 +110,10 @@ final class IInputMethodInvoker {
 
     @AnyThread
     void initializeInternal(IBinder token, IInputMethodPrivilegedOperations privilegedOperations,
-            int configChanges, @InputMethodNavButtonFlags int navigationBarFlags) {
+            @InputMethodNavButtonFlags int navigationBarFlags) {
         final IInputMethod.InitParams params = new IInputMethod.InitParams();
         params.token = token;
         params.privilegedOperations = privilegedOperations;
-        params.configChanges = configChanges;
         params.navigationBarFlags = navigationBarFlags;
         try {
             mTarget.initializeInternal(params);

services/core/java/com/android/server/inputmethod/InputMethodBindingController.java

@@ -279,7 +279,7 @@ final class InputMethodBindingController {
                     if (DEBUG) Slog.v(TAG, "Initiating attach with token: " + mCurToken);
                     final InputMethodInfo info = mMethodMap.get(mSelectedMethodId);
                     mSupportsStylusHw = info.supportsStylusHandwriting();
-                    mService.initializeImeLocked(mCurMethod, mCurToken, info.getConfigChanges());
+                    mService.initializeImeLocked(mCurMethod, mCurToken);
                     mService.scheduleNotifyImeUidToAudioService(mCurMethodUid);
                     mService.reRequestCurrentClientSessionLocked();
                     mService.performOnCreateInlineSuggestionsRequestLocked();

services/core/java/com/android/server/inputmethod/InputMethodManagerService.java

@@ -2692,14 +2692,13 @@ public final class InputMethodManagerService extends IInputMethodManager.Stub
     }
 
     @GuardedBy("ImfLock.class")
-    void initializeImeLocked(@NonNull IInputMethodInvoker inputMethod, @NonNull IBinder token,
-            @android.content.pm.ActivityInfo.Config int configChanges) {
+    void initializeImeLocked(@NonNull IInputMethodInvoker inputMethod, @NonNull IBinder token) {
         if (DEBUG) {
             Slog.v(TAG, "Sending attach of token: " + token + " for display: "
                     + mCurTokenDisplayId);
         }
         inputMethod.initializeInternal(token, new InputMethodPrivilegedOperationsImpl(this, token),
-                configChanges, getInputMethodNavButtonFlagsLocked());
+                getInputMethodNavButtonFlagsLocked());
     }
 
     @AnyThread