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prevent reference cycles between Java and native objects

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This commit is contained in:
Julian Winkler
2024-07-26 21:47:08 +02:00
parent 45801d8f17
commit e3c0931714
30 changed files with 257 additions and 181 deletions
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30
src/api-impl-jni/widgets/android_widget_ImageButton.c
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@@ -26,41 +26,23 @@ JNIEXPORT void JNICALL Java_android_widget_ImageButton_native_1setPixbuf(JNIEnv
Java_android_widget_ImageButton_native_1setDrawable(env, this, widget_ptr, _INTPTR(paintable));
}
struct touch_callback_data {
JavaVM *jvm;
jobject this;
jobject listener;
jmethodID listener_method;
};
static void clicked_cb(GtkWidget *button, struct touch_callback_data *d) {
static void clicked_cb(GtkWidget *button, gpointer user_data) {
printf("clicked_cb\n");
JNIEnv *env;
(*d->jvm)->GetEnv(d->jvm, (void**)&env, JNI_VERSION_1_6);
JNIEnv *env = get_jni_env();
WrapperWidget *wrapper = WRAPPER_WIDGET(gtk_widget_get_parent(button));
(*env)->CallVoidMethod(env, d->listener, d->listener_method, d->this);
(*env)->CallBooleanMethod(env, wrapper->jobj, handle_cache.view.performClick);
if((*env)->ExceptionCheck(env))
(*env)->ExceptionDescribe(env);
}
JNIEXPORT void JNICALL Java_android_widget_ImageButton_native_1setOnClickListener(JNIEnv *env, jobject this, jlong widget_ptr, jobject on_click_listener)
JNIEXPORT void JNICALL Java_android_widget_ImageButton_nativeSetOnClickListener(JNIEnv *env, jobject this, jlong widget_ptr)
{
GtkWidget *button = GTK_WIDGET(_PTR(widget_ptr));
g_signal_handlers_disconnect_matched(button, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, clicked_cb, NULL);
if (!on_click_listener)
return;
JavaVM *jvm;
(*env)->GetJavaVM(env, &jvm);
struct touch_callback_data *callback_data = malloc(sizeof(struct touch_callback_data));
callback_data->jvm = jvm;
callback_data->this = _REF(this);
callback_data->listener = _REF(on_click_listener);
callback_data->listener_method = _METHOD(_CLASS(on_click_listener), "onClick", "(Landroid/view/View;)V");
g_signal_connect(button, "clicked", G_CALLBACK(clicked_cb), callback_data);
g_signal_connect(button, "clicked", G_CALLBACK(clicked_cb), NULL);
}
JNIEXPORT void JNICALL Java_android_widget_ImageButton_native_1setDrawable(JNIEnv *env, jobject this, jlong widget_ptr, jlong paintable_ptr)