gtk2/gtk/gtkapplicationimpl.c
Ryan Lortie 7fd81cf111 Refactor GtkApplication
gtkapplication.c has turned into a bit of an #ifdef mess over time, and
many of the current checks are incorrect.  As an example, if you build
Gtk for wayland, and exclude the X11 backend, much of the functionality
required by wayland (such as exporting menu models) will be disabled.

Solve that by introducing a backend mechanism to GtkApplication (named
GtkApplicationImpl) similar to the one in GApplication.  Add backends
for Wayland, X11 and Quartz, with X11 and Wayland sharing a common
'DBus' superclass.

                             GtkApplicationImpl
                                      |
                       /--------------+-------------------\
                       |                                  |
            GtkApplicationImplDBus              GtkApplicationImplQuartz
                       |
           /-----------+-----------------\
           |                             |
  GtkApplicationImplX11      GtkApplicationImplWayland

GtkApplicationImpl itself is essentially a bunch of vfuncs that serve as
hooks for various things that the platform-specific backends may be
interested in doing (startup, shutdown, managing windows, inhibit, etc.)

With this change, all platform specific code has been removed from
gtkapplication.c and gtkapplicationwindow.c (both of which are now free
of #ifdefs, except for a UNIX-specific use of GDesktopAppInfo in
gtkapplicationwindow.c).

Additionally, because of the movement of the property-setting code out
of GtkApplicationWindow, the _GTK_APPLICATION_ID properties (and
friends) will be set on non-GtkApplicationWindows, such as dialogs.

https://bugzilla.gnome.org/show_bug.cgi?id=720550
2013-12-16 13:51:54 -05:00

186 lines
5.4 KiB
C

/*
* Copyright © 2013 Canonical Limited
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the licence, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
#include "config.h"
#include "gtkapplicationprivate.h"
#ifdef GDK_WINDOWING_X11
#include <gdk/x11/gdkx.h>
#endif
#ifdef GDK_WINDOWING_WAYLAND
#include <gdk/wayland/gdkwayland.h>
#endif
#ifdef GDK_WINDOWING_QUARTZ
#include <gdk/quartz/gdkquartz.h>
#endif
G_DEFINE_TYPE (GtkApplicationImpl, gtk_application_impl, G_TYPE_OBJECT)
static void
gtk_application_impl_init (GtkApplicationImpl *impl)
{
}
static guint do_nothing (void) { return 0; }
static void
gtk_application_impl_class_init (GtkApplicationImplClass *class)
{
/* NB: can only 'do_nothing' for functions with integer or void return */
class->startup = (gpointer) do_nothing;
class->shutdown = (gpointer) do_nothing;
class->before_emit = (gpointer) do_nothing;
class->window_added = (gpointer) do_nothing;
class->window_removed = (gpointer) do_nothing;
class->active_window_changed = (gpointer) do_nothing;
class->handle_window_realize = (gpointer) do_nothing;
class->handle_window_map = (gpointer) do_nothing;
class->set_app_menu = (gpointer) do_nothing;
class->set_menubar = (gpointer) do_nothing;
class->inhibit = (gpointer) do_nothing;
class->uninhibit = (gpointer) do_nothing;
class->is_inhibited = (gpointer) do_nothing;
}
void
gtk_application_impl_startup (GtkApplicationImpl *impl,
gboolean register_session)
{
GTK_APPLICATION_IMPL_GET_CLASS (impl)->startup (impl, register_session);
}
void
gtk_application_impl_shutdown (GtkApplicationImpl *impl)
{
GTK_APPLICATION_IMPL_GET_CLASS (impl)->shutdown (impl);
}
void
gtk_application_impl_before_emit (GtkApplicationImpl *impl,
GVariant *platform_data)
{
GTK_APPLICATION_IMPL_GET_CLASS (impl)->before_emit (impl, platform_data);
}
void
gtk_application_impl_window_added (GtkApplicationImpl *impl,
GtkWindow *window)
{
GTK_APPLICATION_IMPL_GET_CLASS (impl)->window_added (impl, window);
}
void
gtk_application_impl_window_removed (GtkApplicationImpl *impl,
GtkWindow *window)
{
GTK_APPLICATION_IMPL_GET_CLASS (impl)->window_removed (impl, window);
}
void
gtk_application_impl_active_window_changed (GtkApplicationImpl *impl,
GtkWindow *window)
{
GTK_APPLICATION_IMPL_GET_CLASS (impl)->active_window_changed (impl, window);
}
void
gtk_application_impl_handle_window_realize (GtkApplicationImpl *impl,
GtkWindow *window)
{
GTK_APPLICATION_IMPL_GET_CLASS (impl)->handle_window_realize (impl, window);
}
void
gtk_application_impl_handle_window_map (GtkApplicationImpl *impl,
GtkWindow *window)
{
GTK_APPLICATION_IMPL_GET_CLASS (impl)->handle_window_map (impl, window);
}
void
gtk_application_impl_set_app_menu (GtkApplicationImpl *impl,
GMenuModel *app_menu)
{
GTK_APPLICATION_IMPL_GET_CLASS (impl)->set_app_menu (impl, app_menu);
}
void
gtk_application_impl_set_menubar (GtkApplicationImpl *impl,
GMenuModel *menubar)
{
GTK_APPLICATION_IMPL_GET_CLASS (impl)->set_menubar (impl, menubar);
}
guint
gtk_application_impl_inhibit (GtkApplicationImpl *impl,
GtkWindow *window,
GtkApplicationInhibitFlags flags,
const gchar *reason)
{
return GTK_APPLICATION_IMPL_GET_CLASS (impl)->inhibit (impl, window, flags, reason);
}
void
gtk_application_impl_uninhibit (GtkApplicationImpl *impl,
guint cookie)
{
GTK_APPLICATION_IMPL_GET_CLASS (impl)->uninhibit (impl, cookie);
}
gboolean
gtk_application_impl_is_inhibited (GtkApplicationImpl *impl,
GtkApplicationInhibitFlags flags)
{
return GTK_APPLICATION_IMPL_GET_CLASS (impl)->is_inhibited (impl, flags);
}
GtkApplicationImpl *
gtk_application_impl_new (GtkApplication *application,
GdkDisplay *display)
{
GtkApplicationImpl *impl;
GType impl_type;
impl_type = gtk_application_impl_get_type ();
#ifdef GDK_WINDOWING_X11
if (GDK_IS_X11_DISPLAY (display))
impl_type = gtk_application_impl_x11_get_type ();
#endif
#ifdef GDK_WINDOWING_WAYLAND
if (GDK_IS_WAYLAND_DISPLAY (display))
impl_type = gtk_application_impl_wayland_get_type ();
#endif
#ifdef GDK_WINDOWING_QUARTZ
if (GDK_IS_QUARTZ_DISPLAY (display))
impl_type = gtk_application_impl_quartz_get_type ();
#endif
impl = g_object_new (impl_type, NULL);
impl->application = application;
impl->display = display;
return impl;
}