1 files changed, 23 insertions, 0 deletions
diff --git a/services/core/jni/com_android_server_input_InputManagerService.cpp b/services/core/jni/com_android_server_input_InputManagerService.cpp
index fb3076ba9ddd..d331d1f58b2d 100644
--- a/services/core/jni/com_android_server_input_InputManagerService.cpp
+++ b/services/core/jni/com_android_server_input_InputManagerService.cpp
@@ -1571,6 +1571,27 @@ static void nativeSetSystemUiVisibility(JNIEnv* /* env */,
     im->setSystemUiVisibility(visibility);
 }
 
+static jboolean nativeTransferTouchFocus(JNIEnv* env,
+        jclass /* clazz */, jlong ptr, jobject fromChannelObj, jobject toChannelObj) {
+    NativeInputManager* im = reinterpret_cast<NativeInputManager*>(ptr);
+
+    sp<InputChannel> fromChannel =
+            android_view_InputChannel_getInputChannel(env, fromChannelObj);
+    sp<InputChannel> toChannel =
+            android_view_InputChannel_getInputChannel(env, toChannelObj);
+
+    if (fromChannel == nullptr || toChannel == nullptr) {
+        return JNI_FALSE;
+    }
+
+    if (im->getInputManager()->getDispatcher()->
+            transferTouchFocus(fromChannel->getToken(), toChannel->getToken())) {
+        return JNI_TRUE;
+    } else {
+        return JNI_FALSE;
+    }
+}
+
 static void nativeSetPointerSpeed(JNIEnv* /* env */,
         jclass /* clazz */, jlong ptr, jint speed) {
     NativeInputManager* im = reinterpret_cast<NativeInputManager*>(ptr);
@@ -1770,6 +1791,8 @@ static const JNINativeMethod gInputManagerMethods[] = {
             (void*) nativeSetInputDispatchMode },
     { "nativeSetSystemUiVisibility", "(JI)V",
             (void*) nativeSetSystemUiVisibility },
+    { "nativeTransferTouchFocus", "(JLandroid/view/InputChannel;Landroid/view/InputChannel;)Z",
+            (void*) nativeTransferTouchFocus },
     { "nativeSetPointerSpeed", "(JI)V",
             (void*) nativeSetPointerSpeed },
     { "nativeSetShowTouches", "(JZ)V",