MODULE test_views ;

(*
   m2-GTK4 test - model-backed views.

   Builds a GListStore of strings, a signal factory, a single-selection
   model, and GtkListView / GtkGridView / GtkColumnView.  The window is
   presented, and a timeout (run from the main loop) checks that the
   factory "setup"/"bind" callbacks actually fired.  Requires a display.
*)

FROM Gio IMPORT g_application_run, g_application_quit;
FROM GtkApplication IMPORT gtk_application_new;
FROM GtkWindow IMPORT gtk_application_window_new, gtk_window_set_default_size,
   gtk_window_set_child, gtk_window_present;
FROM GtkBox IMPORT gtk_box_new, gtk_box_append;
FROM GtkEnums IMPORT GtkVertical;
FROM GtkLabel IMPORT gtk_label_new, gtk_label_set_text;
FROM GListStore IMPORT g_list_store_new, g_list_store_append;
FROM GtkStringObject IMPORT gtk_string_object_new,
   gtk_string_object_get_string, gtk_string_object_get_type;
FROM GtkSignalListItemFactory IMPORT gtk_signal_list_item_factory_new;
FROM GtkListItem IMPORT gtk_list_item_get_item, gtk_list_item_get_child,
   gtk_list_item_set_child;
FROM GtkColumnViewCell IMPORT gtk_column_view_cell_get_item,
   gtk_column_view_cell_get_child, gtk_column_view_cell_set_child;
FROM GtkSingleSelection IMPORT gtk_single_selection_new,
   gtk_single_selection_get_model, gtk_single_selection_set_selected,
   gtk_single_selection_get_selected;
FROM GtkNoSelection IMPORT gtk_no_selection_new;
FROM GtkListView IMPORT gtk_list_view_new, gtk_list_view_get_model,
   gtk_list_view_get_factory;
FROM GtkGridView IMPORT gtk_grid_view_new, gtk_grid_view_set_max_columns,
   gtk_grid_view_get_max_columns;
FROM GtkColumnView IMPORT gtk_column_view_new, gtk_column_view_append_column;
FROM GtkColumnViewColumn IMPORT gtk_column_view_column_new,
   gtk_column_view_column_get_title;
FROM GtkClosures IMPORT Connect3;
FROM GtkUtils IMPORT Connect, CStrToM2;
FROM GLib IMPORT g_timeout_add, GSourceRemove;
FROM SYSTEM IMPORT ADDRESS, ADR;
FROM libc IMPORT printf;

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

VAR
   app: ADDRESS;
   passed: BOOLEAN;
   bound: BOOLEAN;
   boundCount: INTEGER;
   cellBound: BOOLEAN;

PROCEDURE OnSetup (factory: ADDRESS; item: ADDRESS; user: ADDRESS);
BEGIN
   gtk_list_item_set_child(item, gtk_label_new(""))
END OnSetup;

PROCEDURE OnBind (factory: ADDRESS; item: ADDRESS; user: ADDRESS);
VAR
   obj, child: ADDRESS;
   buf: ARRAY [0..63] OF CHAR;
BEGIN
   obj := gtk_list_item_get_item(item);
   CStrToM2(gtk_string_object_get_string(obj), buf);
   child := gtk_list_item_get_child(item);
   gtk_label_set_text(child, buf);
   bound := TRUE;
   INC(boundCount)
END OnBind;

PROCEDURE ColSetup (factory: ADDRESS; cell: ADDRESS; user: ADDRESS);
BEGIN
   gtk_column_view_cell_set_child(cell, gtk_label_new(""))
END ColSetup;

PROCEDURE ColBind (factory: ADDRESS; cell: ADDRESS; user: ADDRESS);
VAR
   obj, child: ADDRESS;
   buf: ARRAY [0..63] OF CHAR;
BEGIN
   obj := gtk_column_view_cell_get_item(cell);
   CStrToM2(gtk_string_object_get_string(obj), buf);
   child := gtk_column_view_cell_get_child(cell);
   gtk_label_set_text(child, buf);
   cellBound := TRUE
END ColBind;

PROCEDURE AfterMap (user: ADDRESS) : INTEGER;
BEGIN
   IF NOT bound THEN
      printf("list factory never bound\n");
      passed := FALSE
   END;
   IF boundCount < 1 THEN passed := FALSE END;
   IF NOT cellBound THEN
      printf("column factory never bound\n");
      passed := FALSE
   END;
   g_application_quit(app);
   RETURN GSourceRemove
END AfterMap;

PROCEDURE OnActivate (application: ADDRESS; data: ADDRESS);
VAR
   window, box, store, factory, colFactory, sel, listView, gridView,
   columnView, column: ADDRESS;
   buf: ARRAY [0..63] OF CHAR;
   ok: BOOLEAN;
BEGIN
   ok := TRUE;
   bound := FALSE;
   boundCount := 0;
   cellBound := FALSE;

   store := g_list_store_new(gtk_string_object_get_type());
   g_list_store_append(store, gtk_string_object_new("Alpha"));
   g_list_store_append(store, gtk_string_object_new("Beta"));
   g_list_store_append(store, gtk_string_object_new("Gamma"));

   factory := gtk_signal_list_item_factory_new();
   Connect3(factory, "setup", OnSetup, NIL);
   Connect3(factory, "bind", OnBind, NIL);

   colFactory := gtk_signal_list_item_factory_new();
   Connect3(colFactory, "setup", ColSetup, NIL);
   Connect3(colFactory, "bind", ColBind, NIL);

   sel := gtk_single_selection_new(store);
   IF gtk_single_selection_get_model(sel) # store THEN
      printf("single selection model wrong\n");
      ok := FALSE
   END;
   gtk_single_selection_set_selected(sel, 1);
   IF gtk_single_selection_get_selected(sel) # 1 THEN
      printf("single selection index wrong\n");
      ok := FALSE
   END;

   listView := gtk_list_view_new(sel, factory);
   IF gtk_list_view_get_model(listView) # sel THEN
      printf("list view model wrong\n");
      ok := FALSE
   END;
   IF gtk_list_view_get_factory(listView) # factory THEN
      printf("list view factory wrong\n");
      ok := FALSE
   END;

   gridView := gtk_grid_view_new(gtk_no_selection_new(store), factory);
   gtk_grid_view_set_max_columns(gridView, 3);
   IF gtk_grid_view_get_max_columns(gridView) # 3 THEN
      printf("grid max columns wrong\n");
      ok := FALSE
   END;

   columnView := gtk_column_view_new(gtk_no_selection_new(store));
   column := gtk_column_view_column_new("Name", colFactory);
   CStrToM2(gtk_column_view_column_get_title(column), buf);
   IF (buf[0] # 'N') OR (buf[4] # 0C) THEN
      printf("column title wrong: [%s]\n", buf);
      ok := FALSE
   END;
   gtk_column_view_append_column(columnView, column);

   box := gtk_box_new(GtkVertical, 6);
   gtk_box_append(box, listView);
   gtk_box_append(box, gridView);
   gtk_box_append(box, columnView);

   window := gtk_application_window_new(application);
   gtk_window_set_default_size(window, 400, 420);
   gtk_window_set_child(window, box);
   gtk_window_present(window);

   passed := ok;
   g_timeout_add(400, AfterMap, NIL)
END OnActivate;

VAR
   rc: INTEGER;
BEGIN
   passed := FALSE;
   app := gtk_application_new(AppId, 0);
   IF app = NIL THEN
      printf("test_views: 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_views: PASS\n");
      HALT(0)
   ELSE
      printf("test_views: FAIL\n");
      HALT(1)
   END
END test_views.