/* na-tray-manager.c * Copyright (C) 2002 Anders Carlsson * Copyright (C) 2003-2006 Vincent Untz * * 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. * * Used to be: eggtraymanager.c */ #include #include #include #include "na-tray-manager.h" #include #include #if defined (GDK_WINDOWING_X11) #include #include #elif defined (GDK_WINDOWING_WIN32) #include #endif #include #include #include #include "na-marshal.h" /* Signals */ enum { TRAY_ICON_ADDED, TRAY_ICON_REMOVED, MESSAGE_SENT, MESSAGE_CANCELLED, LOST_SELECTION, LAST_SIGNAL }; enum { PROP_0, PROP_ORIENTATION }; typedef struct { long id, len; long remaining_len; long timeout; char *str; #ifdef GDK_WINDOWING_X11 Window window; #endif } PendingMessage; static guint manager_signals[LAST_SIGNAL]; #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 #ifdef GDK_WINDOWING_X11 static gboolean na_tray_manager_check_running_screen_x11 (GdkScreen *screen); #endif static void na_tray_manager_finalize (GObject *object); static void na_tray_manager_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void na_tray_manager_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); static void na_tray_manager_unmanage (NaTrayManager *manager); G_DEFINE_TYPE (NaTrayManager, na_tray_manager, G_TYPE_OBJECT) static void na_tray_manager_init (NaTrayManager *manager) { manager->invisible = NULL; manager->socket_table = g_hash_table_new (NULL, NULL); } static void na_tray_manager_class_init (NaTrayManagerClass *klass) { GObjectClass *gobject_class; gobject_class = (GObjectClass *)klass; gobject_class->finalize = na_tray_manager_finalize; gobject_class->set_property = na_tray_manager_set_property; gobject_class->get_property = na_tray_manager_get_property; g_object_class_install_property (gobject_class, PROP_ORIENTATION, g_param_spec_enum ("orientation", "orientation", "orientation", GTK_TYPE_ORIENTATION, GTK_ORIENTATION_HORIZONTAL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB)); manager_signals[TRAY_ICON_ADDED] = g_signal_new ("tray_icon_added", G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (NaTrayManagerClass, tray_icon_added), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, GTK_TYPE_SOCKET); manager_signals[TRAY_ICON_REMOVED] = g_signal_new ("tray_icon_removed", G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (NaTrayManagerClass, tray_icon_removed), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, GTK_TYPE_SOCKET); manager_signals[MESSAGE_SENT] = g_signal_new ("message_sent", G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (NaTrayManagerClass, message_sent), NULL, NULL, _na_marshal_VOID__OBJECT_STRING_LONG_LONG, G_TYPE_NONE, 4, GTK_TYPE_SOCKET, G_TYPE_STRING, G_TYPE_LONG, G_TYPE_LONG); manager_signals[MESSAGE_CANCELLED] = g_signal_new ("message_cancelled", G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (NaTrayManagerClass, message_cancelled), NULL, NULL, _na_marshal_VOID__OBJECT_LONG, G_TYPE_NONE, 2, GTK_TYPE_SOCKET, G_TYPE_LONG); manager_signals[LOST_SELECTION] = g_signal_new ("lost_selection", G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (NaTrayManagerClass, lost_selection), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); #if defined (GDK_WINDOWING_X11) /* Nothing */ #elif defined (GDK_WINDOWING_WIN32) g_warning ("Port NaTrayManager to Win32"); #else g_warning ("Port NaTrayManager to this GTK+ backend"); #endif } static void na_tray_manager_finalize (GObject *object) { NaTrayManager *manager; manager = NA_TRAY_MANAGER (object); na_tray_manager_unmanage (manager); g_list_free (manager->messages); g_hash_table_destroy (manager->socket_table); G_OBJECT_CLASS (na_tray_manager_parent_class)->finalize (object); } static void na_tray_manager_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { NaTrayManager *manager = NA_TRAY_MANAGER (object); switch (prop_id) { case PROP_ORIENTATION: na_tray_manager_set_orientation (manager, g_value_get_enum (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void na_tray_manager_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { NaTrayManager *manager = NA_TRAY_MANAGER (object); switch (prop_id) { case PROP_ORIENTATION: g_value_set_enum (value, manager->orientation); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } NaTrayManager * na_tray_manager_new (void) { NaTrayManager *manager; manager = g_object_new (NA_TYPE_TRAY_MANAGER, NULL); return manager; } #ifdef GDK_WINDOWING_X11 static gboolean na_tray_manager_plug_removed (GtkSocket *socket, NaTrayManager *manager) { NaTrayChild *child = NA_TRAY_CHILD (socket); g_hash_table_remove (manager->socket_table, GINT_TO_POINTER (child->icon_window)); g_signal_emit (manager, manager_signals[TRAY_ICON_REMOVED], 0, child); /* This destroys the socket. */ return FALSE; } static void na_tray_manager_handle_dock_request (NaTrayManager *manager, XClientMessageEvent *xevent) { Window icon_window = xevent->data.l[2]; GtkWidget *child; if (g_hash_table_lookup (manager->socket_table, GINT_TO_POINTER (icon_window))) { /* We already got this notification earlier, ignore this one */ return; } child = na_tray_child_new (manager->screen, icon_window); if (child == NULL) /* already gone or other error */ return; g_signal_emit (manager, manager_signals[TRAY_ICON_ADDED], 0, child); /* If the child wasn't attached, then destroy it */ if (!GTK_IS_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (child)))) { gtk_widget_destroy (child); return; } g_signal_connect (child, "plug_removed", G_CALLBACK (na_tray_manager_plug_removed), manager); gtk_socket_add_id (GTK_SOCKET (child), icon_window); if (!GTK_SOCKET (child)->plug_window) { /* Embedding failed, we won't get a plug-removed signal */ g_signal_emit (manager, manager_signals[TRAY_ICON_REMOVED], 0, child); gtk_widget_destroy (child); return; } g_hash_table_insert (manager->socket_table, GINT_TO_POINTER (icon_window), child); gtk_widget_show (child); } static void pending_message_free (PendingMessage *message) { g_free (message->str); g_free (message); } static GdkFilterReturn na_tray_manager_handle_client_message_message_data (GdkXEvent *xev, GdkEvent *event, gpointer data) { XClientMessageEvent *xevent; NaTrayManager *manager; GList *p; int len; xevent = (XClientMessageEvent *) xev; manager = data; /* Try to see if we can find the pending message in the list */ for (p = manager->messages; p; p = p->next) { PendingMessage *msg = p->data; if (xevent->window == msg->window) { /* Append the message */ len = MIN (msg->remaining_len, 20); memcpy ((msg->str + msg->len - msg->remaining_len), &xevent->data, len); msg->remaining_len -= len; if (msg->remaining_len == 0) { GtkSocket *socket; socket = g_hash_table_lookup (manager->socket_table, GINT_TO_POINTER (msg->window)); if (socket) g_signal_emit (manager, manager_signals[MESSAGE_SENT], 0, socket, msg->str, msg->id, msg->timeout); pending_message_free (msg); manager->messages = g_list_remove_link (manager->messages, p); g_list_free_1 (p); } break; } } return GDK_FILTER_REMOVE; } static void na_tray_manager_handle_begin_message (NaTrayManager *manager, XClientMessageEvent *xevent) { GtkSocket *socket; GList *p; PendingMessage *msg; long timeout; long len; long id; socket = g_hash_table_lookup (manager->socket_table, GINT_TO_POINTER (xevent->window)); /* we don't know about this tray icon, so ignore the message */ if (!socket) return; /* Check if the same message is already in the queue and remove it if so */ for (p = manager->messages; p; p = p->next) { PendingMessage *pmsg = p->data; if (xevent->window == pmsg->window && xevent->data.l[4] == pmsg->id) { /* Hmm, we found it, now remove it */ pending_message_free (pmsg); manager->messages = g_list_remove_link (manager->messages, p); g_list_free_1 (p); break; } } timeout = xevent->data.l[2]; len = xevent->data.l[3]; id = xevent->data.l[4]; if (len == 0) { g_signal_emit (manager, manager_signals[MESSAGE_SENT], 0, socket, "", id, timeout); } else { /* Now add the new message to the queue */ msg = g_new0 (PendingMessage, 1); msg->window = xevent->window; msg->timeout = timeout; msg->len = len; msg->id = id; msg->remaining_len = msg->len; msg->str = g_malloc (msg->len + 1); msg->str[msg->len] = '\0'; manager->messages = g_list_prepend (manager->messages, msg); } } static void na_tray_manager_handle_cancel_message (NaTrayManager *manager, XClientMessageEvent *xevent) { GList *p; GtkSocket *socket; /* Check if the message is in the queue and remove it if so */ for (p = manager->messages; p; p = p->next) { PendingMessage *msg = p->data; if (xevent->window == msg->window && xevent->data.l[4] == msg->id) { pending_message_free (msg); manager->messages = g_list_remove_link (manager->messages, p); g_list_free_1 (p); break; } } socket = g_hash_table_lookup (manager->socket_table, GINT_TO_POINTER (xevent->window)); if (socket) { g_signal_emit (manager, manager_signals[MESSAGE_CANCELLED], 0, socket, xevent->data.l[2]); } } static GdkFilterReturn na_tray_manager_handle_client_message_opcode (GdkXEvent *xev, GdkEvent *event, gpointer data) { XClientMessageEvent *xevent; NaTrayManager *manager; xevent = (XClientMessageEvent *) xev; manager = data; switch (xevent->data.l[1]) { case SYSTEM_TRAY_REQUEST_DOCK: /* Ignore this one since we don't know on which window this was received * and so we can't know for which screen this is. It will be handled * in na_tray_manager_window_filter() since we also receive it there */ break; case SYSTEM_TRAY_BEGIN_MESSAGE: na_tray_manager_handle_begin_message (manager, xevent); return GDK_FILTER_REMOVE; case SYSTEM_TRAY_CANCEL_MESSAGE: na_tray_manager_handle_cancel_message (manager, xevent); return GDK_FILTER_REMOVE; default: break; } return GDK_FILTER_CONTINUE; } static GdkFilterReturn na_tray_manager_window_filter (GdkXEvent *xev, GdkEvent *event, gpointer data) { XEvent *xevent = (GdkXEvent *)xev; NaTrayManager *manager = data; if (xevent->type == ClientMessage) { /* We handle this client message here. See comment in * na_tray_manager_handle_client_message_opcode() for details */ if (xevent->xclient.message_type == manager->opcode_atom && xevent->xclient.data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) { na_tray_manager_handle_dock_request (manager, (XClientMessageEvent *) xevent); return GDK_FILTER_REMOVE; } } else if (xevent->type == SelectionClear) { g_signal_emit (manager, manager_signals[LOST_SELECTION], 0); na_tray_manager_unmanage (manager); } return GDK_FILTER_CONTINUE; } #if 0 //FIXME investigate why this doesn't work static gboolean na_tray_manager_selection_clear_event (GtkWidget *widget, GdkEventSelection *event, NaTrayManager *manager) { g_signal_emit (manager, manager_signals[LOST_SELECTION], 0); na_tray_manager_unmanage (manager); return FALSE; } #endif #endif static void na_tray_manager_unmanage (NaTrayManager *manager) { #ifdef GDK_WINDOWING_X11 GdkDisplay *display; guint32 timestamp; GtkWidget *invisible; if (manager->invisible == NULL) return; invisible = manager->invisible; g_assert (GTK_IS_INVISIBLE (invisible)); g_assert (GTK_WIDGET_REALIZED (invisible)); g_assert (GDK_IS_WINDOW (invisible->window)); display = gtk_widget_get_display (invisible); if (gdk_selection_owner_get_for_display (display, manager->selection_atom) == invisible->window) { timestamp = gdk_x11_get_server_time (invisible->window); gdk_selection_owner_set_for_display (display, NULL, manager->selection_atom, timestamp, TRUE); } //FIXME: we should also use gdk_remove_client_message_filter when it's //available // See bug #351254 gdk_window_remove_filter (invisible->window, na_tray_manager_window_filter, manager); manager->invisible = NULL; /* prior to destroy for reentrancy paranoia */ gtk_widget_destroy (invisible); g_object_unref (G_OBJECT (invisible)); #endif } static void na_tray_manager_set_orientation_property (NaTrayManager *manager) { #ifdef GDK_WINDOWING_X11 GdkDisplay *display; Atom orientation_atom; gulong data[1]; if (!manager->invisible || !manager->invisible->window) return; display = gtk_widget_get_display (manager->invisible); orientation_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_SYSTEM_TRAY_ORIENTATION"); data[0] = manager->orientation == GTK_ORIENTATION_HORIZONTAL ? SYSTEM_TRAY_ORIENTATION_HORZ : SYSTEM_TRAY_ORIENTATION_VERT; XChangeProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XWINDOW (manager->invisible->window), orientation_atom, XA_CARDINAL, 32, PropModeReplace, (guchar *) &data, 1); #endif } static void na_tray_manager_set_visual_property (NaTrayManager *manager) { #ifdef GDK_WINDOWING_X11 GdkDisplay *display; Visual *xvisual; Atom visual_atom; gulong data[1]; if (!manager->invisible || !manager->invisible->window) return; /* The visual property is a hint to the tray icons as to what visual they * should use for their windows. If the X server has RGBA colormaps, then * we tell the tray icons to use a RGBA colormap and we'll composite the * icon onto its parents with real transparency. Otherwise, we just tell * the icon to use our colormap, and we'll do some hacks with parent * relative backgrounds to simulate transparency. */ display = gtk_widget_get_display (manager->invisible); visual_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_SYSTEM_TRAY_VISUAL"); if (gdk_screen_get_rgba_visual (manager->screen) != NULL && gdk_display_supports_composite (display)) { xvisual = GDK_VISUAL_XVISUAL (gdk_screen_get_rgba_visual (manager->screen)); } else { /* We actually want the visual of the tray where the icons will * be embedded. In almost all cases, this will be the same as the visual * of the screen */ GdkColormap *colormap = gdk_screen_get_default_colormap (manager->screen); xvisual = GDK_VISUAL_XVISUAL (gdk_colormap_get_visual (colormap)); } data[0] = XVisualIDFromVisual (xvisual); XChangeProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XWINDOW (manager->invisible->window), visual_atom, XA_VISUALID, 32, PropModeReplace, (guchar *) &data, 1); #endif } #ifdef GDK_WINDOWING_X11 static gboolean na_tray_manager_manage_screen_x11 (NaTrayManager *manager, GdkScreen *screen) { GdkDisplay *display; Screen *xscreen; GtkWidget *invisible; char *selection_atom_name; guint32 timestamp; g_return_val_if_fail (NA_IS_TRAY_MANAGER (manager), FALSE); g_return_val_if_fail (manager->screen == NULL, FALSE); /* If there's already a manager running on the screen * we can't create another one. */ #if 0 if (na_tray_manager_check_running_screen_x11 (screen)) return FALSE; #endif manager->screen = screen; display = gdk_screen_get_display (screen); xscreen = GDK_SCREEN_XSCREEN (screen); invisible = gtk_invisible_new_for_screen (screen); gtk_widget_realize (invisible); gtk_widget_add_events (invisible, GDK_PROPERTY_CHANGE_MASK | GDK_STRUCTURE_MASK); selection_atom_name = g_strdup_printf ("_NET_SYSTEM_TRAY_S%d", gdk_screen_get_number (screen)); manager->selection_atom = gdk_atom_intern (selection_atom_name, FALSE); g_free (selection_atom_name); manager->invisible = invisible; g_object_ref (G_OBJECT (manager->invisible)); na_tray_manager_set_orientation_property (manager); na_tray_manager_set_visual_property (manager); timestamp = gdk_x11_get_server_time (invisible->window); /* Check if we could set the selection owner successfully */ if (gdk_selection_owner_set_for_display (display, invisible->window, manager->selection_atom, timestamp, TRUE)) { XClientMessageEvent xev; GdkAtom opcode_atom; GdkAtom message_data_atom; xev.type = ClientMessage; xev.window = RootWindowOfScreen (xscreen); xev.message_type = gdk_x11_get_xatom_by_name_for_display (display, "MANAGER"); xev.format = 32; xev.data.l[0] = timestamp; xev.data.l[1] = gdk_x11_atom_to_xatom_for_display (display, manager->selection_atom); xev.data.l[2] = GDK_WINDOW_XWINDOW (invisible->window); xev.data.l[3] = 0; /* manager specific data */ xev.data.l[4] = 0; /* manager specific data */ XSendEvent (GDK_DISPLAY_XDISPLAY (display), RootWindowOfScreen (xscreen), False, StructureNotifyMask, (XEvent *)&xev); opcode_atom = gdk_atom_intern ("_NET_SYSTEM_TRAY_OPCODE", FALSE); manager->opcode_atom = gdk_x11_atom_to_xatom_for_display (display, opcode_atom); message_data_atom = gdk_atom_intern ("_NET_SYSTEM_TRAY_MESSAGE_DATA", FALSE); /* Add a window filter */ #if 0 /* This is for when we lose the selection of _NET_SYSTEM_TRAY_Sx */ g_signal_connect (invisible, "selection-clear-event", G_CALLBACK (na_tray_manager_selection_clear_event), manager); #endif /* This is for SYSTEM_TRAY_REQUEST_DOCK and SelectionClear */ gdk_window_add_filter (invisible->window, na_tray_manager_window_filter, manager); /* This is for SYSTEM_TRAY_BEGIN_MESSAGE and SYSTEM_TRAY_CANCEL_MESSAGE */ gdk_display_add_client_message_filter (display, opcode_atom, na_tray_manager_handle_client_message_opcode, manager); /* This is for _NET_SYSTEM_TRAY_MESSAGE_DATA */ gdk_display_add_client_message_filter (display, message_data_atom, na_tray_manager_handle_client_message_message_data, manager); return TRUE; } else { gtk_widget_destroy (invisible); g_object_unref (invisible); manager->invisible = NULL; manager->screen = NULL; return FALSE; } } #endif gboolean na_tray_manager_manage_screen (NaTrayManager *manager, GdkScreen *screen) { g_return_val_if_fail (GDK_IS_SCREEN (screen), FALSE); g_return_val_if_fail (manager->screen == NULL, FALSE); #ifdef GDK_WINDOWING_X11 return na_tray_manager_manage_screen_x11 (manager, screen); #else return FALSE; #endif } #ifdef GDK_WINDOWING_X11 static gboolean na_tray_manager_check_running_screen_x11 (GdkScreen *screen) { GdkDisplay *display; Atom selection_atom; char *selection_atom_name; display = gdk_screen_get_display (screen); selection_atom_name = g_strdup_printf ("_NET_SYSTEM_TRAY_S%d", gdk_screen_get_number (screen)); selection_atom = gdk_x11_get_xatom_by_name_for_display (display, selection_atom_name); g_free (selection_atom_name); if (XGetSelectionOwner (GDK_DISPLAY_XDISPLAY (display), selection_atom) != None) return TRUE; else return FALSE; } #endif gboolean na_tray_manager_check_running (GdkScreen *screen) { g_return_val_if_fail (GDK_IS_SCREEN (screen), FALSE); #ifdef GDK_WINDOWING_X11 return na_tray_manager_check_running_screen_x11 (screen); #else return FALSE; #endif } void na_tray_manager_set_orientation (NaTrayManager *manager, GtkOrientation orientation) { g_return_if_fail (NA_IS_TRAY_MANAGER (manager)); if (manager->orientation != orientation) { manager->orientation = orientation; na_tray_manager_set_orientation_property (manager); g_object_notify (G_OBJECT (manager), "orientation"); } } GtkOrientation na_tray_manager_get_orientation (NaTrayManager *manager) { g_return_val_if_fail (NA_IS_TRAY_MANAGER (manager), GTK_ORIENTATION_HORIZONTAL); return manager->orientation; }