GTK4 file picker test program

fpicker-gtk.c

#include <gtk/gtk.h>

/*
 * GTK4 file picker sample
 * Compile with gcc -o fpicker-gtk fpicker-gtk.c `pkg-config --cflags --libs gtk4`
 */

static void
on_open_response (GtkDialog *dialog,
                  int        response)
{
  if (response == GTK_RESPONSE_ACCEPT)
    {
      GtkFileChooser *chooser = GTK_FILE_CHOOSER (dialog);

      g_autoptr(GFile) file = gtk_file_chooser_get_file (chooser);
    }

  gtk_window_destroy (GTK_WINDOW (dialog));
}

static void
file_handle (GtkWidget *widget, gpointer data)
{
  GtkWidget *dialog;
  GtkFileChooserAction action = GTK_FILE_CHOOSER_ACTION_OPEN;

  dialog = gtk_file_chooser_dialog_new ("Open File",
                                        GTK_WINDOW(gtk_widget_get_parent(widget)),
                                        action,
                                        "_Cancel",
                                        GTK_RESPONSE_CANCEL,
                                        "_Open",
                                        GTK_RESPONSE_ACCEPT,
                                        NULL);

  gtk_widget_show (dialog);

  g_signal_connect (dialog, "response",
                    G_CALLBACK (on_open_response),
                    NULL);
}

/*
 * Portal
 */

static void
on_open_response_portal (GtkNativeDialog *native, int response)
{
  if (response == GTK_RESPONSE_ACCEPT)
    {
      GtkFileChooser *chooser = GTK_FILE_CHOOSER (native);
      GFile *file = gtk_file_chooser_get_file (chooser);

      g_object_unref (file);
    }

  g_object_unref (native);
}

static void
file_handle_portal (GtkWidget *widget, gpointer   data)
{
  GtkFileChooserNative *native;
  GtkFileChooserAction action = GTK_FILE_CHOOSER_ACTION_OPEN;

  native = gtk_file_chooser_native_new ("Open File",
                                        GTK_WINDOW(gtk_widget_get_parent(widget)),
                                        action,
                                        "_Open",
                                        "_Cancel");

  g_signal_connect (native, "response", G_CALLBACK (on_open_response_portal), NULL);
  gtk_native_dialog_show (GTK_NATIVE_DIALOG(native));
}

/*
 * Main
 */

static void
activate (GtkApplication *app,
          gpointer        user_data)
{
  GtkWidget *window;
  GtkWidget *button;

  window = gtk_application_window_new (app);
  gtk_window_set_title (GTK_WINDOW (window), "Window");
  gtk_window_set_default_size (GTK_WINDOW (window), 200, 200);

  button = gtk_button_new_with_label ("Hello World");
  g_signal_connect (button, "clicked", G_CALLBACK (file_handle), NULL); //switch here between GTK4 and portal/native
  gtk_window_set_child (GTK_WINDOW (window), button);

  gtk_window_present (GTK_WINDOW (window));
}

int
main (int    argc,
      char **argv)
{
  GtkApplication *app;
  int status;

  app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE);
  g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
  status = g_application_run (G_APPLICATION (app), argc, argv);
  g_object_unref (app);

  return status;
}