diff options
Diffstat (limited to 'lib/egg/eggtrayicon.c')
| -rw-r--r-- | lib/egg/eggtrayicon.c | 480 |
1 files changed, 480 insertions, 0 deletions
diff --git a/lib/egg/eggtrayicon.c b/lib/egg/eggtrayicon.c new file mode 100644 index 000000000..6c309306e --- /dev/null +++ b/lib/egg/eggtrayicon.c @@ -0,0 +1,480 @@ +/* -*- 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 <config.h> +#include <string.h> +#include <libintl.h> + +#include "eggtrayicon.h" + +#include <gdk/gdkx.h> +#include <X11/Xatom.h> + +#ifndef EGG_COMPILATION +#ifndef _ +#define _(x) dgettext (GETTEXT_PACKAGE, x) +#define N_(x) x +#endif +#else +#define _(x) x +#define N_(x) x +#endif + +#define SYSTEM_TRAY_REQUEST_DOCK 0 +#define SYSTEM_TRAY_BEGIN_MESSAGE 1 +#define SYSTEM_TRAY_CANCEL_MESSAGE 2 + +#define SYSTEM_TRAY_ORIENTATION_HORZ 0 +#define SYSTEM_TRAY_ORIENTATION_VERT 1 + +enum { + PROP_0, + PROP_ORIENTATION +}; + +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_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec); + +static void egg_tray_icon_realize (GtkWidget *widget); +static void egg_tray_icon_unrealize (GtkWidget *widget); + +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; + icon->orientation = GTK_ORIENTATION_HORIZONTAL; + + gtk_widget_add_events (GTK_WIDGET (icon), GDK_PROPERTY_CHANGE_MASK); +} + +static void +egg_tray_icon_class_init (EggTrayIconClass *klass) +{ + GObjectClass *gobject_class = (GObjectClass *)klass; + GtkWidgetClass *widget_class = (GtkWidgetClass *)klass; + + parent_class = g_type_class_peek_parent (klass); + + gobject_class->get_property = egg_tray_icon_get_property; + + widget_class->realize = egg_tray_icon_realize; + widget_class->unrealize = egg_tray_icon_unrealize; + + g_object_class_install_property (gobject_class, + PROP_ORIENTATION, + g_param_spec_enum ("orientation", + _("Orientation"), + _("The orientation of the tray."), + GTK_TYPE_ORIENTATION, + GTK_ORIENTATION_HORIZONTAL, + G_PARAM_READABLE)); +} + +static void +egg_tray_icon_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + EggTrayIcon *icon = EGG_TRAY_ICON (object); + + switch (prop_id) + { + case PROP_ORIENTATION: + g_value_set_enum (value, icon->orientation); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +egg_tray_icon_get_orientation_property (EggTrayIcon *icon) +{ + Display *xdisplay; + Atom type; + int format; + union { + gulong *prop; + guchar *prop_ch; + } prop = { NULL }; + gulong nitems; + gulong bytes_after; + int error, result; + + g_assert (icon->manager_window != None); + + xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon))); + + gdk_error_trap_push (); + type = None; + result = XGetWindowProperty (xdisplay, + icon->manager_window, + icon->orientation_atom, + 0, G_MAXLONG, FALSE, + XA_CARDINAL, + &type, &format, &nitems, + &bytes_after, &(prop.prop_ch)); + error = gdk_error_trap_pop (); + + if (error || result != Success) + return; + + if (type == XA_CARDINAL) + { + GtkOrientation orientation; + + orientation = (prop.prop [0] == SYSTEM_TRAY_ORIENTATION_HORZ) ? + GTK_ORIENTATION_HORIZONTAL : + GTK_ORIENTATION_VERTICAL; + + if (icon->orientation != orientation) + { + icon->orientation = orientation; + + g_object_notify (G_OBJECT (icon), "orientation"); + } + } + + if (prop.prop) + XFree (prop.prop); +} + +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 == PropertyNotify && + xev->xproperty.atom == icon->orientation_atom) + { + egg_tray_icon_get_orientation_property (icon); + } + if (xev->xany.type == DestroyNotify) + { + egg_tray_icon_update_manager_window (icon); + } + } + + return GDK_FILTER_CONTINUE; +} + +static void +egg_tray_icon_unrealize (GtkWidget *widget) +{ + EggTrayIcon *icon = EGG_TRAY_ICON (widget); + GdkWindow *root_window; + + if (icon->manager_window != None) + { + GdkWindow *gdkwin; + + gdkwin = gdk_window_lookup_for_display (gtk_widget_get_display (widget), + icon->manager_window); + + gdk_window_remove_filter (gdkwin, egg_tray_icon_manager_filter, icon); + } + + root_window = gdk_screen_get_root_window (gtk_widget_get_screen (widget)); + + gdk_window_remove_filter (root_window, egg_tray_icon_manager_filter, icon); + + if (GTK_WIDGET_CLASS (parent_class)->unrealize) + (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget); +} + +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; + + display = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon))); + + 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; + + xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon))); + + if (icon->manager_window != None) + { + GdkWindow *gdkwin; + + gdkwin = gdk_window_lookup_for_display (gtk_widget_get_display (GTK_WIDGET (icon)), + icon->manager_window); + + 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|PropertyChangeMask); + + XUngrabServer (xdisplay); + XFlush (xdisplay); + + if (icon->manager_window != None) + { + GdkWindow *gdkwin; + + gdkwin = gdk_window_lookup_for_display (gtk_widget_get_display (GTK_WIDGET (icon)), + icon->manager_window); + + 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); + + egg_tray_icon_get_orientation_property (icon); + } +} + +static void +egg_tray_icon_realize (GtkWidget *widget) +{ + EggTrayIcon *icon = EGG_TRAY_ICON (widget); + GdkScreen *screen; + GdkDisplay *display; + Display *xdisplay; + char buffer[256]; + GdkWindow *root_window; + + if (GTK_WIDGET_CLASS (parent_class)->realize) + GTK_WIDGET_CLASS (parent_class)->realize (widget); + + screen = gtk_widget_get_screen (widget); + display = gdk_screen_get_display (screen); + xdisplay = gdk_x11_display_get_xdisplay (display); + + /* Now see if there's a manager window around */ + g_snprintf (buffer, sizeof (buffer), + "_NET_SYSTEM_TRAY_S%d", + gdk_screen_get_number (screen)); + + icon->selection_atom = XInternAtom (xdisplay, buffer, False); + + icon->manager_atom = XInternAtom (xdisplay, "MANAGER", False); + + icon->system_tray_opcode_atom = XInternAtom (xdisplay, + "_NET_SYSTEM_TRAY_OPCODE", + False); + + icon->orientation_atom = XInternAtom (xdisplay, + "_NET_SYSTEM_TRAY_ORIENTATION", + False); + + egg_tray_icon_update_manager_window (icon); + + root_window = gdk_screen_get_root_window (screen); + + /* Add a root window filter so that we get changes on MANAGER */ + gdk_window_add_filter (root_window, + egg_tray_icon_manager_filter, icon); +} + +EggTrayIcon * +egg_tray_icon_new_for_xscreen (Screen *xscreen, const char *name) +{ + GdkDisplay *display; + GdkScreen *screen; + + display = gdk_x11_lookup_xdisplay (DisplayOfScreen (xscreen)); + screen = gdk_display_get_screen (display, XScreenNumberOfScreen (xscreen)); + + return egg_tray_icon_new_for_screen (screen, name); +} + +EggTrayIcon * +egg_tray_icon_new_for_screen (GdkScreen *screen, const char *name) +{ + g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL); + + return g_object_new (EGG_TYPE_TRAY_ICON, "screen", screen, "title", name, NULL); +} + +EggTrayIcon* +egg_tray_icon_new (const gchar *name) +{ + return g_object_new (EGG_TYPE_TRAY_ICON, "title", name, NULL); +} + +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; + + xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon))); + + 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); +} + +GtkOrientation +egg_tray_icon_get_orientation (EggTrayIcon *icon) +{ + g_return_val_if_fail (EGG_IS_TRAY_ICON (icon), GTK_ORIENTATION_HORIZONTAL); + + return icon->orientation; +} |