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