Input method manager method to check for active connection

This change adds a method to check if connection is currently active. It
will be used by InputManager to hide cursor and disable tap-to-click in
upcoming changes to improve typing experiance.

Test: manual testing
Bug: 275616121
Change-Id: I996cbbbc49510e3c1a26a2c3c5c63743fdf17f86

services/core/java/com/android/server/input/InputManagerService.java

@@ -116,6 +116,7 @@ import com.android.server.DisplayThread;
 import com.android.server.LocalServices;
 import com.android.server.Watchdog;
 import com.android.server.input.InputManagerInternal.LidSwitchCallback;
+import com.android.server.inputmethod.InputMethodManagerInternal;
 import com.android.server.policy.WindowManagerPolicy;
 
 import libcore.io.IoUtils;
@@ -165,6 +166,8 @@ public class InputManagerService extends IInputManager.Stub
     private final InputManagerHandler mHandler;
     private DisplayManagerInternal mDisplayManagerInternal;
 
+    private InputMethodManagerInternal mInputMethodManagerInternal;
+
     // Context cache used for loading pointer resources.
     private Context mPointerIconDisplayContext;
 
@@ -510,6 +513,8 @@ public class InputManagerService extends IInputManager.Stub
         }
 
         mDisplayManagerInternal = LocalServices.getService(DisplayManagerInternal.class);
+        mInputMethodManagerInternal =
+                LocalServices.getService(InputMethodManagerInternal.class);
 
         mSettingsObserver.registerAndUpdate();
 
@@ -2790,6 +2795,13 @@ public class InputManagerService extends IInputManager.Stub
                         yPosition)).sendToTarget();
     }
 
+    // Native callback.
+    @SuppressWarnings("unused")
+    boolean isInputMethodConnectionActive() {
+        return mInputMethodManagerInternal != null
+                && mInputMethodManagerInternal.isAnyInputConnectionActive();
+    }
+
     /**
      * Callback interface implemented by the Window Manager.
      */

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

@@ -185,6 +185,12 @@ public abstract class InputMethodManagerInternal {
      */
     public abstract void switchKeyboardLayout(int direction);
 
+    /**
+     * Returns true if any InputConnection is currently active.
+     * {@hide}
+     */
+    public abstract boolean isAnyInputConnectionActive();
+
     /**
      * Fake implementation of {@link InputMethodManagerInternal}.  All the methods do nothing.
      */
@@ -268,6 +274,11 @@ public abstract class InputMethodManagerInternal {
                 @Override
                 public void switchKeyboardLayout(int direction) {
                 }
+
+                @Override
+                public boolean isAnyInputConnectionActive() {
+                    return false;
+                }
             };
 
     /**

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

@@ -5937,6 +5937,14 @@ public final class InputMethodManagerService extends IInputMethodManager.Stub
                 }
             }
         }
+
+        /**
+         * Returns true if any InputConnection is currently active.
+         */
+        @Override
+        public boolean isAnyInputConnectionActive() {
+            return mCurInputConnection != null;
+        }
     }
 
     @BinderThread

services/core/jni/com_android_server_input_InputManagerService.cpp

@@ -108,6 +108,7 @@ static struct {
     jmethodID notifySensorEvent;
     jmethodID notifySensorAccuracy;
     jmethodID notifyStylusGestureStarted;
+    jmethodID isInputMethodConnectionActive;
     jmethodID notifyVibratorState;
     jmethodID filterInputEvent;
     jmethodID interceptKeyBeforeQueueing;
@@ -322,6 +323,7 @@ public:
 
     TouchAffineTransformation getTouchAffineTransformation(JNIEnv* env, jfloatArray matrixArr);
     void notifyStylusGestureStarted(int32_t deviceId, nsecs_t eventTime) override;
+    bool isInputMethodConnectionActive() override;
 
     /* --- InputDispatcherPolicyInterface implementation --- */
 
@@ -1306,6 +1308,14 @@ void NativeInputManager::notifyStylusGestureStarted(int32_t deviceId, nsecs_t ev
     checkAndClearExceptionFromCallback(env, "notifyStylusGestureStarted");
 }
 
+bool NativeInputManager::isInputMethodConnectionActive() {
+    JNIEnv* env = jniEnv();
+    const jboolean result =
+            env->CallBooleanMethod(mServiceObj, gServiceClassInfo.isInputMethodConnectionActive);
+    checkAndClearExceptionFromCallback(env, "isInputMethodConnectionActive");
+    return result;
+}
+
 bool NativeInputManager::filterInputEvent(const InputEvent& inputEvent, uint32_t policyFlags) {
     ATRACE_CALL();
     JNIEnv* env = jniEnv();
@@ -2743,6 +2753,9 @@ int register_android_server_InputManager(JNIEnv* env) {
     GET_METHOD_ID(gServiceClassInfo.notifyStylusGestureStarted, clazz, "notifyStylusGestureStarted",
                   "(IJ)V");
 
+    GET_METHOD_ID(gServiceClassInfo.isInputMethodConnectionActive, clazz,
+                  "isInputMethodConnectionActive", "()Z");
+
     GET_METHOD_ID(gServiceClassInfo.notifyVibratorState, clazz, "notifyVibratorState", "(IZ)V");
 
     GET_METHOD_ID(gServiceClassInfo.notifyNoFocusedWindowAnr, clazz, "notifyNoFocusedWindowAnr",