gtk2/examples/application4/exampleapp.c

#include <gtk/gtk.h>

#include "exampleapp.h"
#include "exampleappwin.h"

struct ExampleApp {
        GtkApplication parent;
};

struct ExampleAppClass {
        GtkApplicationClass parent_class;
};

G_DEFINE_TYPE(ExampleApp, example_app, GTK_TYPE_APPLICATION);

static void
example_app_init (ExampleApp *app)
{
}

static void
preferences_activated (GSimpleAction *action,
                       GVariant      *parameter,
                       gpointer       app)
{
}

static void
quit_activated (GSimpleAction *action,
                GVariant      *parameter,
                gpointer       app)
{
  g_application_quit (G_APPLICATION (app));
}

static GActionEntry app_entries[] = {
        { "preferences", preferences_activated, NULL, NULL, NULL },
        { "quit", quit_activated, NULL, NULL, NULL }
};
 
static void
example_app_startup (GApplication *app)
{
        GtkBuilder *builder;
        GMenuModel *app_menu;

        G_APPLICATION_CLASS (example_app_parent_class)->startup (app);

        g_action_map_add_action_entries (G_ACTION_MAP (app),
                                         app_entries, G_N_ELEMENTS (app_entries),
                                         app);

        builder = gtk_builder_new_from_resource ("/org/gtk/exampleapp/app-menu.ui");
        app_menu = G_MENU_MODEL (gtk_builder_get_object (builder, "appmenu"));
        gtk_application_set_app_menu (GTK_APPLICATION (app), app_menu);
        g_object_unref (builder);
}

static void
example_app_activate (GApplication *app)
{
        ExampleAppWindow *win;

        win = example_app_window_new (EXAMPLE_APP (app));
        gtk_window_present (GTK_WINDOW (win));
}

static void
example_app_open (GApplication  *app,
                  GFile        **files,
                  gint           n_files,
                  const gchar   *hint)
{
        GList *windows;
        ExampleAppWindow *win;
        int i;

        windows = gtk_application_get_windows (GTK_APPLICATION (app));
        if (windows)
                win = EXAMPLE_APP_WINDOW (windows->data);
        else
                win = example_app_window_new (EXAMPLE_APP (app));

        for (i = 0; i < n_files; i++)
                example_app_window_open (win, files[i]);

        gtk_window_present (GTK_WINDOW (win));
}

static void
example_app_class_init (ExampleAppClass *class)
{
        G_APPLICATION_CLASS (class)->startup = example_app_startup;
        G_APPLICATION_CLASS (class)->activate = example_app_activate;
        G_APPLICATION_CLASS (class)->open = example_app_open;
}

ExampleApp *
example_app_new (void)
{
        return g_object_new (EXAMPLE_APP_TYPE,
                             "application-id", "org.gtk.exampleapp",
                             "flags", G_APPLICATION_HANDLES_OPEN,
                             NULL);
}