modules/javafx.graphics/src/main/native-glass/gtk/GlassWindow.cpp

*** 80,91 ****
  JNIEXPORT jlong JNICALL Java_com_sun_glass_ui_gtk_GtkWindow__1createWindow
    (JNIEnv * env, jobject obj, jlong owner, jlong screen, jint mask)
  {
      (void)env;
  
      WindowContext* ctx = new WindowContextTop(obj,
!             (WindowContext*)JLONG_TO_PTR(owner),
              screen,
              glass_mask_to_window_frame_type(mask),
              glass_mask_to_window_type(mask),
              glass_mask_to_wm_function(mask)
              );
--- 80,93 ----
  JNIEXPORT jlong JNICALL Java_com_sun_glass_ui_gtk_GtkWindow__1createWindow
    (JNIEnv * env, jobject obj, jlong owner, jlong screen, jint mask)
  {
      (void)env;
  
+     WindowContext* parent = JLONG_TO_WINDOW_CTX(owner);
+ 
      WindowContext* ctx = new WindowContextTop(obj,
!             parent,
              screen,
              glass_mask_to_window_frame_type(mask),
              glass_mask_to_window_type(mask),
              glass_mask_to_wm_function(mask)
              );
*** 106,118 ****
      GdkWindow *parent_window = NULL;
      GtkWidget *parent_widget = NULL;
      WindowContextPlug *parent_ctx = NULL;
      WindowContext *ctx = NULL;
  
      parent_window = gdk_x11_window_lookup_for_display(
                          gdk_display_get_default(),
!                         (GdkNativeWindow)PTR_TO_JLONG(owner));
  
      if (parent_window != NULL) {
          parent_ctx = (WindowContextPlug *)g_object_get_data(G_OBJECT(parent_window), GDK_WINDOW_DATA_CONTEXT);
          // HACK: do not use get_gtk_window()
          // the method is intended to return GtkWindow that can be used for FileChooser
--- 108,122 ----
      GdkWindow *parent_window = NULL;
      GtkWidget *parent_widget = NULL;
      WindowContextPlug *parent_ctx = NULL;
      WindowContext *ctx = NULL;
  
+     WindowContext* parent = JLONG_TO_WINDOW_CTX(owner);
+ 
      parent_window = gdk_x11_window_lookup_for_display(
                          gdk_display_get_default(),
!                         GDK_WINDOW_XID(ctx->get_gdk_window()));
  
      if (parent_window != NULL) {
          parent_ctx = (WindowContextPlug *)g_object_get_data(G_OBJECT(parent_window), GDK_WINDOW_DATA_CONTEXT);
          // HACK: do not use get_gtk_window()
          // the method is intended to return GtkWindow that can be used for FileChooser