MODULE test_headerbar ;

(*
   m2-GTK4 test - GtkHeaderBar, GtkMenuButton and gtk_window_set_titlebar.

   Builds a header bar with a title widget, a start button and an
   end-packed menu button, installs it as the window titlebar, and
   checks the getters (title widget identity, show-title-buttons flag,
   decoration layout string, menu model identity).  Requires a display.
*)

FROM Gio IMPORT g_application_run, g_application_quit;
FROM GtkApplication IMPORT gtk_application_new;
FROM GtkApplicationWindow IMPORT gtk_application_window_new;
FROM GtkWindow IMPORT gtk_window_set_titlebar, gtk_window_get_titlebar,
   gtk_window_set_child;
FROM GtkHeaderBar IMPORT gtk_header_bar_new,
   gtk_header_bar_set_title_widget, gtk_header_bar_get_title_widget,
   gtk_header_bar_pack_start, gtk_header_bar_pack_end,
   gtk_header_bar_set_show_title_buttons,
   gtk_header_bar_get_show_title_buttons,
   gtk_header_bar_set_decoration_layout,
   gtk_header_bar_get_decoration_layout;
FROM GtkMenuButton IMPORT gtk_menu_button_new,
   gtk_menu_button_set_menu_model, gtk_menu_button_get_menu_model,
   gtk_menu_button_set_label;
FROM GtkLabel IMPORT gtk_label_new;
FROM GtkButton IMPORT gtk_button_new_with_label;
FROM GMenu IMPORT g_menu_new, g_menu_append;
FROM GtkUtils IMPORT Connect, CStrToM2;
FROM SYSTEM IMPORT ADDRESS, ADR;
FROM libc IMPORT printf;

CONST
   AppId = "org.example.m2gtk4.TestHeaderBar";

VAR
   app: ADDRESS;
   passed: BOOLEAN;

PROCEDURE OnActivate (application: ADDRESS; data: ADDRESS);
VAR
   window, bar, titleWidget, startButton, menuButton, menu: ADDRESS;
   layout: ARRAY [0..63] OF CHAR;
   ok: BOOLEAN;
BEGIN
   ok := TRUE;

   titleWidget := gtk_label_new("Title");
   bar := gtk_header_bar_new();
   gtk_header_bar_set_title_widget(bar, titleWidget);
   IF gtk_header_bar_get_title_widget(bar) # titleWidget THEN
      printf("title widget wrong\n");
      ok := FALSE
   END;

   startButton := gtk_button_new_with_label("New");
   gtk_header_bar_pack_start(bar, startButton);

   menu := g_menu_new();
   g_menu_append(menu, "Quit", "app.quit");
   menuButton := gtk_menu_button_new();
   gtk_menu_button_set_label(menuButton, "Menu");
   gtk_menu_button_set_menu_model(menuButton, menu);
   IF gtk_menu_button_get_menu_model(menuButton) # menu THEN
      printf("menu model wrong\n");
      ok := FALSE
   END;
   gtk_header_bar_pack_end(bar, menuButton);

   gtk_header_bar_set_show_title_buttons(bar, 0);
   IF gtk_header_bar_get_show_title_buttons(bar) # 0 THEN
      printf("show title buttons wrong\n");
      ok := FALSE
   END;

   gtk_header_bar_set_decoration_layout(bar, "menu:");
   CStrToM2(gtk_header_bar_get_decoration_layout(bar), layout);
   IF (layout[0] # 'm') OR (layout[4] # ':') OR (layout[5] # 0C) THEN
      printf("decoration layout wrong: [%s]\n", layout);
      ok := FALSE
   END;

   window := gtk_application_window_new(application);
   gtk_window_set_titlebar(window, bar);
   IF gtk_window_get_titlebar(window) # bar THEN
      printf("titlebar wrong\n");
      ok := FALSE
   END;
   gtk_window_set_child(window, gtk_label_new("content"));

   passed := ok;
   g_application_quit(application)
END OnActivate;

VAR
   rc: INTEGER;
BEGIN
   passed := FALSE;
   app := gtk_application_new(AppId, 0);
   IF app = NIL THEN
      printf("test_headerbar: FAIL (no app)\n");
      HALT(1)
   END;
   Connect(app, "activate", ADR(OnActivate), NIL);
   rc := g_application_run(app, 0, NIL);

   IF passed THEN
      printf("test_headerbar: PASS\n");
      HALT(0)
   ELSE
      printf("test_headerbar: FAIL\n");
      HALT(1)
   END
END test_headerbar.