gtk2/gtk/gtkapplication.c

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/*
* Copyright © 2010 Codethink 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
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* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
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* Author: Ryan Lortie <desrt@desrt.ca>
*/
#include "config.h"
#include <stdlib.h>
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#ifdef HAVE_UNISTD_H
#include <unistd.h>
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#endif
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#include <string.h>
#include "gtkapplication.h"
#include "gtkmarshalers.h"
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#include "gtkwindow.h"
#include "gtkmain.h"
#include <gdk/gdk.h>
#ifdef GDK_WINDOWING_X11
#include <gdk/x11/gdkx.h>
#endif
/**
* SECTION:gtkapplication
* @title: GtkApplication
* @short_description: Application class
*
* #GtkApplication is a class that handles many important aspects
* of a GTK+ application in a convenient fashion, without enforcing
* a one-size-fits-all application model.
*
* Currently, GtkApplication handles GTK+ initialization, application
* uniqueness, provides some basic scriptability by exporting 'actions',
* and manages a list of toplevel windows whose life-cycle is automatically
* tied to the life-cycle of your application.
*
* <example id="gtkapplication"><title>A simple application</title>
* <programlisting>
* <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../examples/bloatpad.c">
* <xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback>
* </xi:include>
* </programlisting>
* </example>
*/
G_DEFINE_TYPE (GtkApplication, gtk_application, G_TYPE_APPLICATION)
struct _GtkApplicationPrivate
{
GList *windows;
};
static void
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gtk_application_startup (GApplication *application)
{
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gtk_init (0, 0);
}
static void
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gtk_application_quit_mainloop (GApplication *application)
{
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gtk_main_quit ();
}
static void
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gtk_application_run_mainloop (GApplication *application)
{
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gtk_main ();
}
static void
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gtk_application_add_platform_data (GApplication *application,
GVariantBuilder *builder)
{
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const gchar *startup_id;
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startup_id = getenv ("DESKTOP_STARTUP_ID");
if (startup_id && g_utf8_validate (startup_id, -1, NULL))
g_variant_builder_add (builder, "{sv}", "desktop-startup-id",
g_variant_new_string (startup_id));
}
static void
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gtk_application_before_emit (GApplication *application,
GVariant *platform_data)
{
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GVariantIter iter;
const gchar *key;
GVariant *value;
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g_variant_iter_init (&iter, platform_data);
while (g_variant_iter_loop (&iter, "{&sv}", &key, &value))
{
#ifdef GDK_WINDOWING_X11
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if (strcmp (key, "desktop-startup-id") == 0)
{
GdkDisplay *display;
const gchar *id;
display = gdk_display_get_default ();
id = g_variant_get_string (value, NULL);
gdk_x11_display_set_startup_notification_id (display, id);
}
#endif
}
}
static void
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gtk_application_after_emit (GApplication *application,
GVariant *platform_data)
{
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gdk_notify_startup_complete ();
}
static void
gtk_application_init (GtkApplication *application)
{
application->priv = G_TYPE_INSTANCE_GET_PRIVATE (application,
GTK_TYPE_APPLICATION,
GtkApplicationPrivate);
}
static void
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gtk_application_class_init (GtkApplicationClass *class)
{
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GApplicationClass *application_class = G_APPLICATION_CLASS (class);
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application_class->add_platform_data = gtk_application_add_platform_data;
application_class->before_emit = gtk_application_before_emit;
application_class->after_emit = gtk_application_after_emit;
application_class->startup = gtk_application_startup;
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application_class->quit_mainloop = gtk_application_quit_mainloop;
application_class->run_mainloop = gtk_application_run_mainloop;
g_type_class_add_private (class, sizeof (GtkApplicationPrivate));
}
/**
* gtk_application_new:
* @application_id: the application id
* @flags: the application flags
*
* Creates a new #GtkApplication instance.
*
* This function calls g_type_init() for you. gtk_init() is called
* as soon as the application gets registered as the primary instance.
*
* The application id must be valid. See g_application_id_is_valid().
*
* Returns: a new #GtkApplication instance
*/
GtkApplication *
gtk_application_new (const gchar *application_id,
GApplicationFlags flags)
{
g_return_val_if_fail (g_application_id_is_valid (application_id), NULL);
g_type_init ();
return g_object_new (GTK_TYPE_APPLICATION,
"application-id", application_id,
"flags", flags,
NULL);
}
/**
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* gtk_application_add_window:
* @application: a #GtkApplication
* @window: a #GtkWindow
*
* Adds a window from @application.
*
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* This call is equivalent to setting the #GtkWindow:application
* property of @window to @application.
*
* Normally, the connection between the application and the window
* will remain until the window is destroyed, but you can explicitly
* remove it with gtk_application_remove_window().
*
* GTK+ will keep the application running as long as it has
* any windows.
*
* Since: 3.0
**/
void
gtk_application_add_window (GtkApplication *application,
GtkWindow *window)
{
GtkApplicationPrivate *priv;
g_return_if_fail (GTK_IS_APPLICATION (application));
priv = application->priv;
if (!g_list_find (priv->windows, window))
{
priv->windows = g_list_prepend (priv->windows, window);
gtk_window_set_application (window, application);
g_application_hold (G_APPLICATION (application));
}
}
/**
* gtk_application_remove_window:
* @application: a #GtkApplication
* @window: a #GtkWindow
*
* Remove a window from @application.
*
* If @window belongs to @application then this call is equivalent to
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* setting the #GtkWindow:application property of @window to
* %NULL.
*
* The application may stop running as a result of a call to this
* function.
*
* Since: 3.0
**/
void
gtk_application_remove_window (GtkApplication *application,
GtkWindow *window)
{
GtkApplicationPrivate *priv;
g_return_if_fail (GTK_IS_APPLICATION (application));
priv = application->priv;
if (g_list_find (priv->windows, window))
{
priv->windows = g_list_remove (priv->windows, window);
g_application_release (G_APPLICATION (application));
gtk_window_set_application (window, NULL);
}
}
/**
* gtk_application_get_windows:
* @application: a #GtkApplication
*
* Gets a list of the #GtkWindow<!-- -->s associated with @application.
*
* The list that is returned should not be modified in any way.
*
* Returns: (element-type GtkWindow) (transfer none): a #GList of #GtkWindow
*
* Since: 3.0
**/
GList *
gtk_application_get_windows (GtkApplication *application)
{
g_return_val_if_fail (GTK_IS_APPLICATION (application), NULL);
return application->priv->windows;
}