add support for the boneheaded method of receiving input events that is used by NativeActivity apps

currently, our "not-actually-a-queue" implementation is quite ugly,
hopefully it might be possible to make it look somewhat sane while
not needing to make it as much of a queue as it is on android

src/api-impl-jni/android_app_NativeActivity.c

@@ -544,20 +544,19 @@ Java_android_app_NativeActivity_onSurfaceDestroyedNative(JNIEnv* env, jobject cl
 }
 
 void
-Java_android_app_NativeActivity_onInputQueueCreatedNative(JNIEnv* env, jobject clazz, jlong handle, jint queuePtr)
+Java_android_app_NativeActivity_onInputQueueCreatedNative(JNIEnv* env, jobject clazz, jlong handle, jlong queue)
 {
 	printf("STUB - onInputChannelCreated_native\n");
-/*	if (handle != 0) {
+	if (handle != 0) {
 		struct NativeCode* code = (struct NativeCode*)handle;
 		if (code->callbacks.onInputQueueCreated != NULL) {
-			AInputQueue* queue = reinterpret_cast<AInputQueue*>(queuePtr);
 			code->callbacks.onInputQueueCreated(code, queue);
 		}
-	}*/
+	}
 }
 
 void
-Java_android_app_NativeActivity_onInputQueueDestroyedNative(JNIEnv* env, jobject clazz, jlong handle, jint queuePtr)
+Java_android_app_NativeActivity_onInputQueueDestroyedNative(JNIEnv* env, jobject clazz, jlong handle, jlong queuePtr)
 {
 	printf("STUB - onInputChannelDestroyed_native\n");
 /*	if (handle != 0) {

src/api-impl-jni/android_view_Window.c

@@ -9,3 +9,18 @@ JNIEXPORT void JNICALL Java_android_view_Window_set_1widget_1as_1root(JNIEnv *en
 {
 	gtk_window_set_child(GTK_WINDOW(_PTR(window)), gtk_widget_get_parent(GTK_WIDGET(_PTR(widget))));
 }
+
+JNIEXPORT void JNICALL Java_android_view_Window_take_1input_1queue(JNIEnv *env, jobject this, jlong native_window, jobject callback, jobject queue)
+{
+	GtkWidget *window = _PTR(native_window);
+	printf("in Java_android_view_Window_take_1input_1queue\n");
+
+	GtkEventController *controller = GTK_EVENT_CONTROLLER(gtk_event_controller_legacy_new());
+	gtk_widget_add_controller(window, controller);
+
+	_SET_LONG_FIELD(queue, "native_ptr", _INTPTR(controller));
+
+	// we need to keep these for later, so they can be called after OnCreate finishes
+	g_object_set_data(G_OBJECT(window), "input_queue_callback", (gpointer)_REF(callback));
+	g_object_set_data(G_OBJECT(window), "input_queue", (gpointer)_REF(queue));
+}

src/api-impl-jni/generated_headers/android_app_NativeActivity.h

@@ -122,18 +122,18 @@ JNIEXPORT void JNICALL Java_android_app_NativeActivity_onSurfaceDestroyedNative
 /*
  * Class:     android_app_NativeActivity
  * Method:    onInputQueueCreatedNative
- * Signature: (JI)V
+ * Signature: (JJ)V
  */
 JNIEXPORT void JNICALL Java_android_app_NativeActivity_onInputQueueCreatedNative
-  (JNIEnv *, jobject, jlong, jint);
+  (JNIEnv *, jobject, jlong, jlong);
 
 /*
  * Class:     android_app_NativeActivity
  * Method:    onInputQueueDestroyedNative
- * Signature: (JI)V
+ * Signature: (JJ)V
  */
 JNIEXPORT void JNICALL Java_android_app_NativeActivity_onInputQueueDestroyedNative
-  (JNIEnv *, jobject, jlong, jint);
+  (JNIEnv *, jobject, jlong, jlong);
 
 /*
  * Class:     android_app_NativeActivity

src/api-impl-jni/generated_headers/android_view_Window.h

@@ -15,6 +15,14 @@ extern "C" {
 JNIEXPORT void JNICALL Java_android_view_Window_set_1widget_1as_1root
   (JNIEnv *, jobject, jlong, jlong);
 
+/*
+ * Class:     android_view_Window
+ * Method:    take_input_queue
+ * Signature: (JLandroid/view/InputQueue/Callback;Landroid/view/InputQueue;)V
+ */
+JNIEXPORT void JNICALL Java_android_view_Window_take_1input_1queue
+  (JNIEnv *, jobject, jlong, jobject, jobject);
+
 #ifdef __cplusplus
 }
 #endif

src/api-impl-jni/util.c

@@ -68,6 +68,9 @@ void set_up_handle_cache(JNIEnv *env, char *apk_main_activity_class)
 	handle_cache.audio_track_periodic_listener.class = _REF((*env)->FindClass(env, "android/media/AudioTrack$OnPlaybackPositionUpdateListener"));
 	handle_cache.audio_track_periodic_listener.onPeriodicNotification = _METHOD(handle_cache.audio_track_periodic_listener.class, "onPeriodicNotification", "(Landroid/media/AudioTrack;)V");
 
+	handle_cache.input_queue_callback.class = _REF((*env)->FindClass(env, "android/view/InputQueue$Callback"));
+	handle_cache.input_queue_callback.onInputQueueCreated = _METHOD(handle_cache.input_queue_callback.class, "onInputQueueCreated", "(Landroid/view/InputQueue;)V");
+
 	handle_cache.view.class = _REF((*env)->FindClass(env, "android/view/View"));
 	if((*env)->ExceptionCheck(env))
 		(*env)->ExceptionDescribe(env);

src/api-impl-jni/util.h

@@ -57,6 +57,10 @@ struct handle_cache {
 		jclass class;
 		jmethodID onPeriodicNotification;
 	} audio_track_periodic_listener;
+	struct {
+		jclass class;
+		jmethodID onInputQueueCreated;
+	} input_queue_callback;
 	struct {
 		jclass class;
 		jmethodID setLayoutParams;