forked from AuroraMiddleware/gtk
738 lines
22 KiB
C
738 lines
22 KiB
C
/*
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* Copyright © 2010 Codethink Limited
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* 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.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: Ryan Lortie <desrt@desrt.ca>
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*/
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#include "config.h"
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#include "gtkapplication.h"
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#include <stdlib.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <string.h>
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#include "gtkapplicationprivate.h"
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#include "gtkmarshalers.h"
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#include "gtkmain.h"
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#include "gtkaccelmapprivate.h"
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#include "gactionmuxer.h"
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#ifdef GDK_WINDOWING_QUARTZ
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#include "gtkquartz-menu.h"
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#import <Cocoa/Cocoa.h>
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#endif
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#include <gdk/gdk.h>
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#ifdef GDK_WINDOWING_X11
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#include <gdk/x11/gdkx.h>
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#endif
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/**
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* SECTION:gtkapplication
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* @title: GtkApplication
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* @short_description: Application class
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*
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* #GtkApplication is a class that handles many important aspects
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* of a GTK+ application in a convenient fashion, without enforcing
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* a one-size-fits-all application model.
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*
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* Currently, GtkApplication handles GTK+ initialization, application
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* uniqueness, provides some basic scriptability and desktop shell integration
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* by exporting actions and menus and manages a list of toplevel windows whose
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* life-cycle is automatically tied to the life-cycle of your application.
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*
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* While GtkApplication works fine with plain #GtkWindows, it is recommended
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* to use it together with #GtkApplicationWindow.
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*
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* To set an application menu on a GtkApplication, use
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* g_application_set_app_menu(). The #GMenuModel that this function
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* expects is usually constructed using #GtkBuilder, as seen in the
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* following example. To set a menubar that will be automatically picked
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* up by #GApplicationWindows, use g_application_set_menubar(). GTK+
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* makes these menus appear as expected, depending on the platform
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* the application is running on.
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*
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* <figure label="Menu integration in OS X">
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* <graphic fileref="bloatpad-osx.png" format="PNG"/>
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* </figure>
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*
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* <figure label="Menu integration in GNOME">
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* <graphic fileref="bloatpad-gnome.png" format="PNG"/>
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* </figure>
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*
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* <example id="gtkapplication"><title>A simple application</title>
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* <programlisting>
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* <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../examples/bloatpad.c">
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* <xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback>
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* </xi:include>
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* </programlisting>
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* </example>
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*/
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enum {
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WINDOW_ADDED,
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WINDOW_REMOVED,
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LAST_SIGNAL
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};
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static guint gtk_application_signals[LAST_SIGNAL];
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G_DEFINE_TYPE (GtkApplication, gtk_application, G_TYPE_APPLICATION)
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struct _GtkApplicationPrivate
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{
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GList *windows;
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#ifdef GDK_WINDOWING_X11
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GDBusConnection *session;
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gchar *window_prefix;
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guint next_id;
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#endif
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#ifdef GDK_WINDOWING_QUARTZ
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GActionMuxer *muxer;
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GMenu *combined;
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#endif
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};
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#ifdef GDK_WINDOWING_X11
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static void
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gtk_application_window_added_x11 (GtkApplication *application,
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GtkWindow *window)
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{
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if (application->priv->session == NULL)
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return;
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if (GTK_IS_APPLICATION_WINDOW (window))
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{
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GtkApplicationWindow *app_window = GTK_APPLICATION_WINDOW (window);
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gboolean success;
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/* GtkApplicationWindow associates with us when it is first created,
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* so surely it's not realized yet...
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*/
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g_assert (!gtk_widget_get_realized (GTK_WIDGET (window)));
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do
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{
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gchar *window_path;
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guint window_id;
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window_id = application->priv->next_id++;
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window_path = g_strdup_printf ("%s%d", application->priv->window_prefix, window_id);
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success = gtk_application_window_publish (app_window, application->priv->session, window_path);
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g_free (window_path);
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}
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while (!success);
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}
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}
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static void
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gtk_application_window_removed_x11 (GtkApplication *application,
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GtkWindow *window)
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{
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if (application->priv->session == NULL)
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return;
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if (GTK_IS_APPLICATION_WINDOW (window))
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gtk_application_window_unpublish (GTK_APPLICATION_WINDOW (window));
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}
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static gchar *
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window_prefix_from_appid (const gchar *appid)
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{
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gchar *appid_path, *iter;
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appid_path = g_strconcat ("/", appid, "/windows/", NULL);
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for (iter = appid_path; *iter; iter++)
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{
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if (*iter == '.')
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*iter = '/';
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if (*iter == '-')
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*iter = '_';
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}
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return appid_path;
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}
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static void
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gtk_application_startup_x11 (GtkApplication *application)
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{
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const gchar *application_id;
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application_id = g_application_get_application_id (G_APPLICATION (application));
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application->priv->session = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
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application->priv->window_prefix = window_prefix_from_appid (application_id);
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}
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static void
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gtk_application_shutdown_x11 (GtkApplication *application)
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{
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g_free (application->priv->window_prefix);
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application->priv->window_prefix = NULL;
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if (application->priv->session)
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{
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g_object_unref (application->priv->session);
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application->priv->session = NULL;
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}
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}
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#endif
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#ifdef GDK_WINDOWING_QUARTZ
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static void
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gtk_application_menu_changed_quartz (GObject *object,
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GParamSpec *pspec,
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gpointer user_data)
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{
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GtkApplication *application = GTK_APPLICATION (object);
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GMenu *combined;
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combined = g_menu_new ();
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g_menu_append_submenu (combined, "Application", g_application_get_app_menu (G_APPLICATION (object)));
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g_menu_append_section (combined, NULL, g_application_get_menubar (G_APPLICATION (object)));
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gtk_quartz_set_main_menu (G_MENU_MODEL (combined), G_ACTION_OBSERVABLE (application->priv->muxer));
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}
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static void
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gtk_application_startup_quartz (GtkApplication *application)
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{
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[NSApp finishLaunching];
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application->priv->muxer = g_action_muxer_new ();
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g_action_muxer_insert (application->priv->muxer, "app", G_ACTION_GROUP (application));
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g_signal_connect (application, "notify::app-menu", G_CALLBACK (gtk_application_menu_changed_quartz), NULL);
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g_signal_connect (application, "notify::menubar", G_CALLBACK (gtk_application_menu_changed_quartz), NULL);
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gtk_application_menu_changed_quartz (G_OBJECT (application), NULL, NULL);
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}
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static void
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gtk_application_shutdown_quartz (GtkApplication *application)
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{
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g_signal_handlers_disconnect_by_func (application, gtk_application_menu_changed_quartz, NULL);
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g_object_unref (application->priv->muxer);
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application->priv->muxer = NULL;
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}
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static void
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gtk_application_focus_changed (GtkApplication *application,
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GtkWindow *window)
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{
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if (G_IS_ACTION_GROUP (window))
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g_action_muxer_insert (application->priv->muxer, "win", G_ACTION_GROUP (window));
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else
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g_action_muxer_remove (application->priv->muxer, "win");
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}
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#endif
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static gboolean
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gtk_application_focus_in_event_cb (GtkWindow *window,
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GdkEventFocus *event,
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GtkApplication *application)
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{
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GtkApplicationPrivate *priv = application->priv;
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GList *link;
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/* Keep the window list sorted by most-recently-focused. */
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link = g_list_find (priv->windows, window);
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if (link != NULL && link != priv->windows)
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{
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priv->windows = g_list_remove_link (priv->windows, link);
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priv->windows = g_list_concat (link, priv->windows);
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}
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#ifdef GDK_WINDOWING_QUARTZ
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gtk_application_focus_changed (application, window);
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#endif
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return FALSE;
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}
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static void
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gtk_application_startup (GApplication *application)
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{
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G_APPLICATION_CLASS (gtk_application_parent_class)
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->startup (application);
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gtk_init (0, 0);
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#ifdef GDK_WINDOWING_X11
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gtk_application_startup_x11 (GTK_APPLICATION (application));
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#endif
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#ifdef GDK_WINDOWING_QUARTZ
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gtk_application_startup_quartz (GTK_APPLICATION (application));
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#endif
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}
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static void
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gtk_application_shutdown (GApplication *application)
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{
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#ifdef GDK_WINDOWING_X11
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gtk_application_shutdown_x11 (GTK_APPLICATION (application));
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#endif
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#ifdef GDK_WINDOWING_QUARTZ
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gtk_application_shutdown_quartz (GTK_APPLICATION (application));
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#endif
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G_APPLICATION_CLASS (gtk_application_parent_class)
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->shutdown (application);
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}
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static void
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gtk_application_add_platform_data (GApplication *application,
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GVariantBuilder *builder)
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{
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const gchar *startup_id;
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startup_id = getenv ("DESKTOP_STARTUP_ID");
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if (startup_id && g_utf8_validate (startup_id, -1, NULL))
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g_variant_builder_add (builder, "{sv}", "desktop-startup-id",
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g_variant_new_string (startup_id));
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}
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static void
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gtk_application_before_emit (GApplication *application,
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GVariant *platform_data)
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{
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GVariantIter iter;
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const gchar *key;
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GVariant *value;
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g_variant_iter_init (&iter, platform_data);
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while (g_variant_iter_loop (&iter, "{&sv}", &key, &value))
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{
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#ifdef GDK_WINDOWING_X11
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if (strcmp (key, "desktop-startup-id") == 0)
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{
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GdkDisplay *display;
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const gchar *id;
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display = gdk_display_get_default ();
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id = g_variant_get_string (value, NULL);
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if (GDK_IS_X11_DISPLAY (display))
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gdk_x11_display_set_startup_notification_id (display, id);
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}
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#endif
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}
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}
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static void
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gtk_application_after_emit (GApplication *application,
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GVariant *platform_data)
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{
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gdk_notify_startup_complete ();
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}
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static void
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gtk_application_init (GtkApplication *application)
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{
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application->priv = G_TYPE_INSTANCE_GET_PRIVATE (application,
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GTK_TYPE_APPLICATION,
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GtkApplicationPrivate);
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}
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static void
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gtk_application_window_added (GtkApplication *application,
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GtkWindow *window)
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{
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GtkApplicationPrivate *priv = application->priv;
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priv->windows = g_list_prepend (priv->windows, window);
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gtk_window_set_application (window, application);
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g_application_hold (G_APPLICATION (application));
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g_signal_connect (window, "focus-in-event",
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G_CALLBACK (gtk_application_focus_in_event_cb),
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application);
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#ifdef GDK_WINDOWING_X11
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gtk_application_window_added_x11 (application, window);
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#endif
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}
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static void
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gtk_application_window_removed (GtkApplication *application,
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GtkWindow *window)
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{
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GtkApplicationPrivate *priv = application->priv;
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#ifdef GDK_WINDOWING_X11
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gtk_application_window_removed_x11 (application, window);
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#endif
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g_signal_handlers_disconnect_by_func (window,
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gtk_application_focus_in_event_cb,
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application);
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g_application_release (G_APPLICATION (application));
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priv->windows = g_list_remove (priv->windows, window);
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gtk_window_set_application (window, NULL);
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}
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static void
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extract_accel_from_menu_item (GMenuModel *model,
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gint item,
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GtkApplication *app)
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{
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GMenuAttributeIter *iter;
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const gchar *key;
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GVariant *value;
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const gchar *accel = NULL;
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const gchar *action = NULL;
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GVariant *target = NULL;
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iter = g_menu_model_iterate_item_attributes (model, item);
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while (g_menu_attribute_iter_get_next (iter, &key, &value))
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{
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if (g_str_equal (key, "action") && g_variant_is_of_type (value, G_VARIANT_TYPE_STRING))
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action = g_variant_get_string (value, NULL);
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else if (g_str_equal (key, "accel") && g_variant_is_of_type (value, G_VARIANT_TYPE_STRING))
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accel = g_variant_get_string (value, NULL);
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else if (g_str_equal (key, "target"))
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target = g_variant_ref (value);
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g_variant_unref (value);
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}
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g_object_unref (iter);
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if (accel && action)
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gtk_application_add_accelerator (app, accel, action, target);
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if (target)
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g_variant_unref (target);
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}
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static void
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extract_accels_from_menu (GMenuModel *model,
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GtkApplication *app)
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{
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gint i;
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GMenuLinkIter *iter;
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const gchar *key;
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GMenuModel *m;
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for (i = 0; i < g_menu_model_get_n_items (model); i++)
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{
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extract_accel_from_menu_item (model, i, app);
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iter = g_menu_model_iterate_item_links (model, i);
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while (g_menu_link_iter_get_next (iter, &key, &m))
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{
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extract_accels_from_menu (m, app);
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g_object_unref (m);
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}
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g_object_unref (iter);
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}
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}
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static void
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gtk_application_notify (GObject *object,
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GParamSpec *pspec)
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{
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if (strcmp (pspec->name, "app-menu") == 0 ||
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strcmp (pspec->name, "menubar") == 0)
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{
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GMenuModel *model;
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g_object_get (object, pspec->name, &model, NULL);
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if (model)
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{
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extract_accels_from_menu (model, GTK_APPLICATION (object));
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g_object_unref (model);
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}
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}
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if (G_OBJECT_CLASS (gtk_application_parent_class)->notify)
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G_OBJECT_CLASS (gtk_application_parent_class)->notify (object, pspec);
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}
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static void
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gtk_application_class_init (GtkApplicationClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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GApplicationClass *application_class = G_APPLICATION_CLASS (class);
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object_class->notify = gtk_application_notify;
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application_class->add_platform_data = gtk_application_add_platform_data;
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application_class->before_emit = gtk_application_before_emit;
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application_class->after_emit = gtk_application_after_emit;
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application_class->startup = gtk_application_startup;
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application_class->shutdown = gtk_application_shutdown;
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class->window_added = gtk_application_window_added;
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class->window_removed = gtk_application_window_removed;
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g_type_class_add_private (class, sizeof (GtkApplicationPrivate));
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/**
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* GtkApplication::window-added:
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* @application: the #GtkApplication which emitted the signal
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* @window: the newly-added #GtkWindow
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*
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* Emitted when a #GtkWindow is added to @application through
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* gtk_application_add_window().
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*
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* Since: 3.2
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*/
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gtk_application_signals[WINDOW_ADDED] =
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g_signal_new ("window-added", GTK_TYPE_APPLICATION, G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GtkApplicationClass, window_added),
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NULL, NULL,
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g_cclosure_marshal_VOID__OBJECT,
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G_TYPE_NONE, 1, GTK_TYPE_WINDOW);
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|
|
/**
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|
* GtkApplication::window-removed:
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* @application: the #GtkApplication which emitted the signal
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* @window: the #GtkWindow that is being removed
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*
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* Emitted when a #GtkWindow is removed from @application,
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|
* either as a side-effect of being destroyed or explicitly
|
|
* through gtk_application_remove_window().
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|
*
|
|
* Since: 3.2
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|
*/
|
|
gtk_application_signals[WINDOW_REMOVED] =
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g_signal_new ("window-removed", GTK_TYPE_APPLICATION, G_SIGNAL_RUN_FIRST,
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|
G_STRUCT_OFFSET (GtkApplicationClass, window_removed),
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|
NULL, NULL,
|
|
g_cclosure_marshal_VOID__OBJECT,
|
|
G_TYPE_NONE, 1, GTK_TYPE_WINDOW);
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* Note that commandline arguments are not passed to gtk_init().
|
|
* All GTK+ functionality that is available via commandline arguments
|
|
* can also be achieved by setting suitable environment variables
|
|
* such as <envvar>G_DEBUG</envvar>, so this should not be a big
|
|
* problem. If you absolutely must support GTK+ commandline arguments,
|
|
* you can explicitly call gtk_init() before creating the application
|
|
* 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);
|
|
}
|
|
|
|
/**
|
|
* gtk_application_add_window:
|
|
* @application: a #GtkApplication
|
|
* @window: a #GtkWindow
|
|
*
|
|
* Adds a window from @application.
|
|
*
|
|
* 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)
|
|
{
|
|
g_return_if_fail (GTK_IS_APPLICATION (application));
|
|
|
|
if (!g_list_find (application->priv->windows, window))
|
|
g_signal_emit (application,
|
|
gtk_application_signals[WINDOW_ADDED], 0, window);
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
* 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)
|
|
{
|
|
g_return_if_fail (GTK_IS_APPLICATION (application));
|
|
|
|
if (g_list_find (application->priv->windows, window))
|
|
g_signal_emit (application,
|
|
gtk_application_signals[WINDOW_REMOVED], 0, window);
|
|
}
|
|
|
|
/**
|
|
* gtk_application_get_windows:
|
|
* @application: a #GtkApplication
|
|
*
|
|
* Gets a list of the #GtkWindows associated with @application.
|
|
*
|
|
* The list is sorted by most recently focused window, such that the first
|
|
* element is the currently focused window. (Useful for choosing a parent
|
|
* for a transient window.)
|
|
*
|
|
* The list that is returned should not be modified in any way. It will
|
|
* only remain valid until the next focus change or window creation or
|
|
* deletion.
|
|
*
|
|
* 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;
|
|
}
|
|
|
|
/**
|
|
* gtk_application_add_accelerator:
|
|
* @application: a #GtkApplication
|
|
* @accelerator: accelerator string
|
|
* @action_name: the name of the action to activate
|
|
* @parameter: (allow-none): parameter to pass when activating the action,
|
|
* or %NULL if the action does not accept an activation parameter
|
|
*
|
|
* Installs an accelerator that will cause the named action
|
|
* to be activated when the key combination specificed by @accelerator
|
|
* is pressed.
|
|
*
|
|
* @accelerator must be a string that can be parsed by
|
|
* gtk_accelerator_parse(), e.g. "<Primary>q" or "<Control><Alt>p".
|
|
*
|
|
* @action_name must be the name of an action as it would be used
|
|
* in the app menu, i.e. actions that have been added to the application
|
|
* are referred to with an "app." prefix, and window-specific actions
|
|
* with a "win." prefix.
|
|
*
|
|
* GtkApplication also extracts accelerators out of 'accel' attributes
|
|
* in the #GMenuModels passed to g_application_set_app_menu() and
|
|
* g_application_set_menubar(), which is usually more convenient
|
|
* than calling this function for each accelerator.
|
|
*
|
|
* Since: 3.4
|
|
*/
|
|
void
|
|
gtk_application_add_accelerator (GtkApplication *application,
|
|
const gchar *accelerator,
|
|
const gchar *action_name,
|
|
GVariant *parameter)
|
|
{
|
|
gchar *accel_path;
|
|
guint accel_key;
|
|
GdkModifierType accel_mods;
|
|
|
|
g_return_if_fail (GTK_IS_APPLICATION (application));
|
|
|
|
/* Call this here, since gtk_init() is only getting called in startup() */
|
|
_gtk_accel_map_init ();
|
|
|
|
gtk_accelerator_parse (accelerator, &accel_key, &accel_mods);
|
|
|
|
if (accel_key == 0)
|
|
{
|
|
g_warning ("Failed to parse accelerator: '%s'\n", accelerator);
|
|
return;
|
|
}
|
|
|
|
accel_path = _gtk_accel_path_for_action (action_name, parameter);
|
|
|
|
if (gtk_accel_map_lookup_entry (accel_path, NULL))
|
|
gtk_accel_map_change_entry (accel_path, accel_key, accel_mods, TRUE);
|
|
else
|
|
gtk_accel_map_add_entry (accel_path, accel_key, accel_mods);
|
|
|
|
g_free (accel_path);
|
|
}
|
|
|
|
/**
|
|
* gtk_application_remove_accelerator:
|
|
* @application: a #GtkApplication
|
|
* @action_name: the name of the action to activate
|
|
* @parameter: (allow-none): parameter to pass when activating the action,
|
|
* or %NULL if the action does not accept an activation parameter
|
|
*
|
|
* Removes an accelerator that has been previously added
|
|
* with gtk_application_add_accelerator().
|
|
*
|
|
* Since: 3.4
|
|
*/
|
|
void
|
|
gtk_application_remove_accelerator (GtkApplication *application,
|
|
const gchar *action_name,
|
|
GVariant *parameter)
|
|
{
|
|
gchar *accel_path;
|
|
|
|
g_return_if_fail (GTK_IS_APPLICATION (application));
|
|
|
|
accel_path = _gtk_accel_path_for_action (action_name, parameter);
|
|
|
|
if (!gtk_accel_map_lookup_entry (accel_path, NULL))
|
|
{
|
|
g_warning ("No accelerator found for '%s'\n", accel_path);
|
|
g_free (accel_path);
|
|
return;
|
|
}
|
|
|
|
gtk_accel_map_change_entry (accel_path, 0, 0, FALSE);
|
|
g_free (accel_path);
|
|
}
|