Merge "InputManagerInternal: Add API to get the last used input device" into main

4 files changed, 32 insertions, 0 deletions

diff --git a/services/core/java/com/android/server/input/InputManagerInternal.java b/services/core/java/com/android/server/input/InputManagerInternal.java
index b47631c35e38..d32a5ed60094 100644
--- a/services/core/java/com/android/server/input/InputManagerInternal.java
+++ b/services/core/java/com/android/server/input/InputManagerInternal.java
@@ -218,4 +218,13 @@ public abstract class InputManagerInternal {
      * display, external peripherals, fingerprint sensor, etc.
      */
     public abstract void notifyUserActivity();
+
+    /**
+     * Get the device ID of the {@link InputDevice} that used most recently.
+     *
+     * @return the last used input device ID, or
+     *     {@link android.os.IInputConstants#INVALID_INPUT_DEVICE_ID} if no device has been used
+     *     since boot.
+     */
+    public abstract int getLastUsedInputDeviceId();
 }
diff --git a/services/core/java/com/android/server/input/InputManagerService.java b/services/core/java/com/android/server/input/InputManagerService.java
index 83179914c746..8685d2c45762 100644
--- a/services/core/java/com/android/server/input/InputManagerService.java
+++ b/services/core/java/com/android/server/input/InputManagerService.java
@@ -3204,6 +3204,11 @@ public class InputManagerService extends IInputManager.Stub
         public void setStylusButtonMotionEventsEnabled(boolean enabled) {
             mNative.setStylusButtonMotionEventsEnabled(enabled);
         }
+
+        @Override
+        public int getLastUsedInputDeviceId() {
+            return mNative.getLastUsedInputDeviceId();
+        }
     }
 
     @Override
diff --git a/services/core/java/com/android/server/input/NativeInputManagerService.java b/services/core/java/com/android/server/input/NativeInputManagerService.java
index f742360484f5..0208a325a1d5 100644
--- a/services/core/java/com/android/server/input/NativeInputManagerService.java
+++ b/services/core/java/com/android/server/input/NativeInputManagerService.java
@@ -271,6 +271,15 @@ interface NativeInputManagerService {
 
     void setInputMethodConnectionIsActive(boolean isActive);
 
+    /**
+     * Get the device ID of the InputDevice that used most recently.
+     *
+     * @return the last used input device ID, or
+     *     {@link android.os.IInputConstants#INVALID_INPUT_DEVICE_ID} if no device has been used
+     *     since boot.
+     */
+    int getLastUsedInputDeviceId();
+
     /** The native implementation of InputManagerService methods. */
     class NativeImpl implements NativeInputManagerService {
         /** Pointer to native input manager service object, used by native code. */
@@ -544,5 +553,8 @@ interface NativeInputManagerService {
 
         @Override
         public native void setInputMethodConnectionIsActive(boolean isActive);
+
+        @Override
+        public native int getLastUsedInputDeviceId();
     }
 }
diff --git a/services/core/jni/com_android_server_input_InputManagerService.cpp b/services/core/jni/com_android_server_input_InputManagerService.cpp
index a01c1231b373..3746cdf234d6 100644
--- a/services/core/jni/com_android_server_input_InputManagerService.cpp
+++ b/services/core/jni/com_android_server_input_InputManagerService.cpp
@@ -2727,6 +2727,11 @@ static void nativeSetInputMethodConnectionIsActive(JNIEnv* env, jobject nativeIm
     im->setInputMethodConnectionIsActive(isActive);
 }
 
+static jint nativeGetLastUsedInputDeviceId(JNIEnv* env, jobject nativeImplObj) {
+    NativeInputManager* im = getNativeInputManager(env, nativeImplObj);
+    return static_cast<jint>(im->getInputManager()->getReader().getLastUsedInputDeviceId());
+}
+
 // ----------------------------------------------------------------------------
 
 static const JNINativeMethod gInputManagerMethods[] = {
@@ -2835,6 +2840,7 @@ static const JNINativeMethod gInputManagerMethods[] = {
         {"setAccessibilityStickyKeysEnabled", "(Z)V",
          (void*)nativeSetAccessibilityStickyKeysEnabled},
         {"setInputMethodConnectionIsActive", "(Z)V", (void*)nativeSetInputMethodConnectionIsActive},
+        {"getLastUsedInputDeviceId", "()I", (void*)nativeGetLastUsedInputDeviceId},
 };
 
 #define FIND_CLASS(var, className) \