/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* eggtrayicon.c
* Copyright (C) 2002 Anders Carlsson <andersca@gnu.org>
*
* 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 License, 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.
*/
#include <string.h>
#include <gdk/gdkx.h>
#include "eggtrayicon.h"
#define SYSTEM_TRAY_REQUEST_DOCK 0
#define SYSTEM_TRAY_BEGIN_MESSAGE 1
#define SYSTEM_TRAY_CANCEL_MESSAGE 2
static GtkPlugClass *parent_class = NULL;
static void egg_tray_icon_init (EggTrayIcon *icon);
static void egg_tray_icon_class_init (EggTrayIconClass *klass);
static void egg_tray_icon_update_manager_window (EggTrayIcon *icon);
GType
egg_tray_icon_get_type (void)
{
static GType our_type = 0;
if (our_type == 0)
{
static const GTypeInfo our_info =
{
sizeof (EggTrayIconClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) egg_tray_icon_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (EggTrayIcon),
0, /* n_preallocs */
(GInstanceInitFunc) egg_tray_icon_init
};
our_type = g_type_register_static (GTK_TYPE_PLUG, "EggTrayIcon", &our_info, 0);
}
return our_type;
}
static void
egg_tray_icon_init (EggTrayIcon *icon)
{
icon->stamp = 1;
gtk_widget_add_events (GTK_WIDGET (icon), GDK_PROPERTY_CHANGE_MASK);
}
static void
egg_tray_icon_class_init (EggTrayIconClass *klass)
{
parent_class = g_type_class_peek_parent (klass);
}
static GdkFilterReturn
egg_tray_icon_manager_filter (GdkXEvent *xevent, GdkEvent *event, gpointer user_data)
{
EggTrayIcon *icon = user_data;
XEvent *xev = (XEvent *)xevent;
if (xev->xany.type == ClientMessage &&
xev->xclient.message_type == icon->manager_atom &&
xev->xclient.data.l[1] == icon->selection_atom)
{
egg_tray_icon_update_manager_window (icon);
}
else if (xev->xany.window == icon->manager_window)
{
if (xev->xany.type == DestroyNotify)
{
egg_tray_icon_update_manager_window (icon);
}
}
return GDK_FILTER_CONTINUE;
}
static void
egg_tray_icon_send_manager_message (EggTrayIcon *icon,
long message,
Window window,
long data1,
long data2,
long data3)
{
XClientMessageEvent ev;
Display *display;
ev.type = ClientMessage;
ev.window = window;
ev.message_type = icon->system_tray_opcode_atom;
ev.format = 32;
ev.data.l[0] = gdk_x11_get_server_time (GTK_WIDGET (icon)->window);
ev.data.l[1] = message;
ev.data.l[2] = data1;
ev.data.l[3] = data2;
ev.data.l[4] = data3;
#if HAVE_GTK_MULTIHEAD
display = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
#else
display = gdk_display;
#endif
gdk_error_trap_push ();
XSendEvent (display,
icon->manager_window, False, NoEventMask, (XEvent *)&ev);
XSync (display, False);
gdk_error_trap_pop ();
}
static void
egg_tray_icon_send_dock_request (EggTrayIcon *icon)
{
egg_tray_icon_send_manager_message (icon,
SYSTEM_TRAY_REQUEST_DOCK,
icon->manager_window,
gtk_plug_get_id (GTK_PLUG (icon)),
0, 0);
}
static void
egg_tray_icon_update_manager_window (EggTrayIcon *icon)
{
Display *xdisplay;
#if HAVE_GTK_MULTIHEAD
xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
#else
xdisplay = gdk_display;
#endif
if (icon->manager_window != None)
{
GdkWindow *gdkwin;
#if HAVE_GTK_MULTIHEAD
gdkwin = gdk_window_lookup_for_display (display,
icon->manager_window);
#else
gdkwin = gdk_window_lookup (icon->manager_window);
#endif
gdk_window_remove_filter (gdkwin, egg_tray_icon_manager_filter, icon);
}
XGrabServer (xdisplay);
icon->manager_window = XGetSelectionOwner (xdisplay,
icon->selection_atom);
if (icon->manager_window != None)
XSelectInput (xdisplay,
icon->manager_window, StructureNotifyMask);
XUngrabServer (xdisplay);
XFlush (xdisplay);
if (icon->manager_window != None)
{
GdkWindow *gdkwin;
#if HAVE_GTK_MULTIHEAD
gdkwin = gdk_window_lookup_for_display (gtk_widget_get_display (GTK_WIDGET (icon)),
icon->manager_window);
#else
gdkwin = gdk_window_lookup (icon->manager_window);
#endif
gdk_window_add_filter (gdkwin, egg_tray_icon_manager_filter, icon);
/* Send a request that we'd like to dock */
egg_tray_icon_send_dock_request (icon);
}
}
static EggTrayIcon *
egg_tray_icon_new_for_xscreen (Screen *xscreen, const char *name)
{
EggTrayIcon *icon;
char buffer[256];
GdkWindow *root_window;
g_return_val_if_fail (xscreen != NULL, NULL);
icon = g_object_new (EGG_TYPE_TRAY_ICON, NULL);
gtk_window_set_title (GTK_WINDOW (icon), name);
#if HAVE_GTK_MULTIHEAD
gtk_plug_construct_for_display (GTK_PLUG (icon),
gdk_screen_get_display (screen), 0);
#else
gtk_plug_construct (GTK_PLUG (icon), 0);
#endif
gtk_widget_realize (GTK_WIDGET (icon));
/* Now see if there's a manager window around */
g_snprintf (buffer, sizeof (buffer),
"_NET_SYSTEM_TRAY_S%d",
XScreenNumberOfScreen (xscreen));
icon->selection_atom = XInternAtom (DisplayOfScreen (xscreen),
buffer, False);
icon->manager_atom = XInternAtom (DisplayOfScreen (xscreen),
"MANAGER", False);
icon->system_tray_opcode_atom = XInternAtom (DisplayOfScreen (xscreen),
"_NET_SYSTEM_TRAY_OPCODE", False);
egg_tray_icon_update_manager_window (icon);
#if HAVE_GTK_MULTIHEAD
root_window = gdk_screen_get_root_window (screen);
#else
root_window = gdk_window_lookup (gdk_x11_get_default_root_xwindow ());
#endif
/* Add a root window filter so that we get changes on MANAGER */
gdk_window_add_filter (root_window,
egg_tray_icon_manager_filter, icon);
return icon;
}
#if HAVE_GTK_MULTIHEAD
EggTrayIcon *
egg_tray_icon_new_for_screen (GdkScreen *screen, const char *name)
{
EggTrayIcon *icon;
char buffer[256];
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
return egg_tray_icon_new_for_xscreen (GDK_SCREEN_XSCREEN (screen), name);
}
#endif
EggTrayIcon*
egg_tray_icon_new (const gchar *name)
{
return egg_tray_icon_new_for_xscreen (DefaultScreenOfDisplay (gdk_display), name);
}
guint
egg_tray_icon_send_message (EggTrayIcon *icon,
gint timeout,
const gchar *message,
gint len)
{
guint stamp;
g_return_val_if_fail (EGG_IS_TRAY_ICON (icon), 0);
g_return_val_if_fail (timeout >= 0, 0);
g_return_val_if_fail (message != NULL, 0);
if (icon->manager_window == None)
return 0;
if (len < 0)
len = strlen (message);
stamp = icon->stamp++;
/* Get ready to send the message */
egg_tray_icon_send_manager_message (icon, SYSTEM_TRAY_BEGIN_MESSAGE,
(Window)gtk_plug_get_id (GTK_PLUG (icon)),
timeout, len, stamp);
/* Now to send the actual message */
gdk_error_trap_push ();
while (len > 0)
{
XClientMessageEvent ev;
Display *xdisplay;
#if HAVE_GTK_MULTIHEAD
xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
#else
xdisplay = gdk_display;
#endif
ev.type = ClientMessage;
ev.window = (Window)gtk_plug_get_id (GTK_PLUG (icon));
ev.format = 8;
ev.message_type = XInternAtom (xdisplay,
"_NET_SYSTEM_TRAY_MESSAGE_DATA", False);
if (len > 20)
{
memcpy (&ev.data, message, 20);
len -= 20;
message += 20;
}
else
{
memcpy (&ev.data, message, len);
len = 0;
}
XSendEvent (xdisplay,
icon->manager_window, False, StructureNotifyMask, (XEvent *)&ev);
XSync (xdisplay, False);
}
gdk_error_trap_pop ();
return stamp;
}
void
egg_tray_icon_cancel_message (EggTrayIcon *icon,
guint id)
{
g_return_if_fail (EGG_IS_TRAY_ICON (icon));
g_return_if_fail (id > 0);
egg_tray_icon_send_manager_message (icon, SYSTEM_TRAY_CANCEL_MESSAGE,
(Window)gtk_plug_get_id (GTK_PLUG (icon)),
id, 0, 0);
}
