diff options
Diffstat (limited to 'lib/egg/eggtraymanager.c')
| -rw-r--r-- | lib/egg/eggtraymanager.c | 725 |
1 files changed, 725 insertions, 0 deletions
diff --git a/lib/egg/eggtraymanager.c b/lib/egg/eggtraymanager.c new file mode 100644 index 000000000..f076a64d3 --- /dev/null +++ b/lib/egg/eggtraymanager.c @@ -0,0 +1,725 @@ +/* eggtraymanager.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 "eggtraymanager.h" + +#include <gdk/gdkx.h> +#include <gtk/gtkinvisible.h> +#include <gtk/gtksocket.h> +#include <gtk/gtkwindow.h> +#include <X11/Xatom.h> + +#include "eggmarshalers.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 + +/* 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; + Window window; + char *str; +} PendingMessage; + +static GObjectClass *parent_class = NULL; +static guint manager_signals[LAST_SIGNAL] = { 0 }; + +#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 + +static gboolean egg_tray_manager_check_running_xscreen (Screen *xscreen); + +static void egg_tray_manager_init (EggTrayManager *manager); +static void egg_tray_manager_class_init (EggTrayManagerClass *klass); + +static void egg_tray_manager_finalize (GObject *object); +static void egg_tray_manager_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec); +static void egg_tray_manager_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec); + +static void egg_tray_manager_unmanage (EggTrayManager *manager); + +GType +egg_tray_manager_get_type (void) +{ + static GType our_type = 0; + + if (our_type == 0) + { + static const GTypeInfo our_info = + { + sizeof (EggTrayManagerClass), + (GBaseInitFunc) NULL, + (GBaseFinalizeFunc) NULL, + (GClassInitFunc) egg_tray_manager_class_init, + NULL, /* class_finalize */ + NULL, /* class_data */ + sizeof (EggTrayManager), + 0, /* n_preallocs */ + (GInstanceInitFunc) egg_tray_manager_init + }; + + our_type = g_type_register_static (G_TYPE_OBJECT, "EggTrayManager", &our_info, 0); + } + + return our_type; + +} + +static void +egg_tray_manager_init (EggTrayManager *manager) +{ + manager->socket_table = g_hash_table_new (NULL, NULL); +} + +static void +egg_tray_manager_class_init (EggTrayManagerClass *klass) +{ + GObjectClass *gobject_class; + + parent_class = g_type_class_peek_parent (klass); + gobject_class = (GObjectClass *)klass; + + gobject_class->finalize = egg_tray_manager_finalize; + gobject_class->set_property = egg_tray_manager_set_property; + gobject_class->get_property = egg_tray_manager_get_property; + + 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_READWRITE | G_PARAM_CONSTRUCT)); + + manager_signals[TRAY_ICON_ADDED] = + g_signal_new ("tray_icon_added", + G_OBJECT_CLASS_TYPE (klass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (EggTrayManagerClass, 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 (EggTrayManagerClass, 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 (EggTrayManagerClass, message_sent), + NULL, NULL, + _egg_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 (EggTrayManagerClass, message_cancelled), + NULL, NULL, + _egg_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 (EggTrayManagerClass, lost_selection), + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + +} + +static void +egg_tray_manager_finalize (GObject *object) +{ + EggTrayManager *manager; + + manager = EGG_TRAY_MANAGER (object); + + egg_tray_manager_unmanage (manager); + + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +static void +egg_tray_manager_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + EggTrayManager *manager = EGG_TRAY_MANAGER (object); + + switch (prop_id) + { + case PROP_ORIENTATION: + egg_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 +egg_tray_manager_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + EggTrayManager *manager = EGG_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; + } +} + +EggTrayManager * +egg_tray_manager_new (void) +{ + EggTrayManager *manager; + + manager = g_object_new (EGG_TYPE_TRAY_MANAGER, NULL); + + return manager; +} + +static gboolean +egg_tray_manager_plug_removed (GtkSocket *socket, + EggTrayManager *manager) +{ + Window *window; + + window = g_object_get_data (G_OBJECT (socket), "egg-tray-child-window"); + + g_hash_table_remove (manager->socket_table, GINT_TO_POINTER (*window)); + g_object_set_data (G_OBJECT (socket), "egg-tray-child-window", + NULL); + + g_signal_emit (manager, manager_signals[TRAY_ICON_REMOVED], 0, socket); + + /* This destroys the socket. */ + return FALSE; +} + +static void +egg_tray_manager_handle_dock_request (EggTrayManager *manager, + XClientMessageEvent *xevent) +{ + GtkWidget *socket; + Window *window; + + socket = gtk_socket_new (); + + /* We need to set the child window here + * so that the client can call _get functions + * in the signal handler + */ + window = g_new (Window, 1); + *window = xevent->data.l[2]; + + g_object_set_data_full (G_OBJECT (socket), + "egg-tray-child-window", + window, g_free); + g_signal_emit (manager, manager_signals[TRAY_ICON_ADDED], 0, + socket); + + /* Add the socket only if it's been attached */ + if (GTK_IS_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (socket)))) + { + g_signal_connect (socket, "plug_removed", + G_CALLBACK (egg_tray_manager_plug_removed), manager); + + gtk_socket_add_id (GTK_SOCKET (socket), xevent->data.l[2]); + + g_hash_table_insert (manager->socket_table, GINT_TO_POINTER (xevent->data.l[2]), socket); + } + else + gtk_widget_destroy (socket); +} + +static void +pending_message_free (PendingMessage *message) +{ + g_free (message->str); + g_free (message); +} + +static void +egg_tray_manager_handle_message_data (EggTrayManager *manager, + XClientMessageEvent *xevent) +{ + GList *p; + int len; + + /* 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); + } + manager->messages = g_list_remove_link (manager->messages, + p); + + pending_message_free (msg); + } + + return; + } + } +} + +static void +egg_tray_manager_handle_begin_message (EggTrayManager *manager, + XClientMessageEvent *xevent) +{ + GList *p; + PendingMessage *msg; + + /* Check if the same message is + * already 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) + { + /* Hmm, we found it, now remove it */ + pending_message_free (msg); + manager->messages = g_list_remove_link (manager->messages, p); + break; + } + } + + /* Now add the new message to the queue */ + msg = g_new0 (PendingMessage, 1); + msg->window = xevent->window; + msg->timeout = xevent->data.l[2]; + msg->len = xevent->data.l[3]; + msg->id = xevent->data.l[4]; + 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 +egg_tray_manager_handle_cancel_message (EggTrayManager *manager, + XClientMessageEvent *xevent) +{ + GtkSocket *socket; + + 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 +egg_tray_manager_handle_event (EggTrayManager *manager, + XClientMessageEvent *xevent) +{ + switch (xevent->data.l[1]) + { + case SYSTEM_TRAY_REQUEST_DOCK: + egg_tray_manager_handle_dock_request (manager, xevent); + return GDK_FILTER_REMOVE; + + case SYSTEM_TRAY_BEGIN_MESSAGE: + egg_tray_manager_handle_begin_message (manager, xevent); + return GDK_FILTER_REMOVE; + + case SYSTEM_TRAY_CANCEL_MESSAGE: + egg_tray_manager_handle_cancel_message (manager, xevent); + return GDK_FILTER_REMOVE; + default: + break; + } + + return GDK_FILTER_CONTINUE; +} + +static GdkFilterReturn +egg_tray_manager_window_filter (GdkXEvent *xev, GdkEvent *event, gpointer data) +{ + XEvent *xevent = (GdkXEvent *)xev; + EggTrayManager *manager = data; + + if (xevent->type == ClientMessage) + { + if (xevent->xclient.message_type == manager->opcode_atom) + { + return egg_tray_manager_handle_event (manager, (XClientMessageEvent *)xevent); + } + else if (xevent->xclient.message_type == manager->message_data_atom) + { + egg_tray_manager_handle_message_data (manager, (XClientMessageEvent *)xevent); + return GDK_FILTER_REMOVE; + } + } + else if (xevent->type == SelectionClear) + { + g_signal_emit (manager, manager_signals[LOST_SELECTION], 0); + egg_tray_manager_unmanage (manager); + } + + return GDK_FILTER_CONTINUE; +} + +static void +egg_tray_manager_unmanage (EggTrayManager *manager) +{ + Display *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 = GDK_WINDOW_XDISPLAY (invisible->window); + + if (XGetSelectionOwner (display, manager->selection_atom) == + GDK_WINDOW_XWINDOW (invisible->window)) + { + timestamp = gdk_x11_get_server_time (invisible->window); + XSetSelectionOwner (display, manager->selection_atom, None, timestamp); + } + + gdk_window_remove_filter (invisible->window, egg_tray_manager_window_filter, manager); + + manager->invisible = NULL; /* prior to destroy for reentrancy paranoia */ + gtk_widget_destroy (invisible); + g_object_unref (G_OBJECT (invisible)); +} + +static void +egg_tray_manager_set_orientation_property (EggTrayManager *manager) +{ + gulong data[1]; + + if (!manager->invisible || !manager->invisible->window) + return; + + g_assert (manager->orientation_atom != None); + + data[0] = manager->orientation == GTK_ORIENTATION_HORIZONTAL ? + SYSTEM_TRAY_ORIENTATION_HORZ : + SYSTEM_TRAY_ORIENTATION_VERT; + + XChangeProperty (GDK_WINDOW_XDISPLAY (manager->invisible->window), + GDK_WINDOW_XWINDOW (manager->invisible->window), + manager->orientation_atom, + XA_CARDINAL, 32, + PropModeReplace, + (guchar *) &data, 1); +} + +static gboolean +egg_tray_manager_manage_xscreen (EggTrayManager *manager, Screen *xscreen) +{ + GtkWidget *invisible; + char *selection_atom_name; + guint32 timestamp; + GdkScreen *screen; + + g_return_val_if_fail (EGG_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 (egg_tray_manager_check_running_xscreen (xscreen)) + return FALSE; +#endif + screen = gdk_display_get_screen (gdk_x11_lookup_xdisplay (DisplayOfScreen (xscreen)), + XScreenNumberOfScreen (xscreen)); + + 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", + XScreenNumberOfScreen (xscreen)); + manager->selection_atom = XInternAtom (DisplayOfScreen (xscreen), selection_atom_name, False); + + g_free (selection_atom_name); + + manager->orientation_atom = XInternAtom (DisplayOfScreen (xscreen), + "_NET_SYSTEM_TRAY_ORIENTATION", + FALSE); + egg_tray_manager_set_orientation_property (manager); + + timestamp = gdk_x11_get_server_time (invisible->window); + XSetSelectionOwner (DisplayOfScreen (xscreen), manager->selection_atom, + GDK_WINDOW_XWINDOW (invisible->window), timestamp); + + /* Check if we were could set the selection owner successfully */ + if (XGetSelectionOwner (DisplayOfScreen (xscreen), manager->selection_atom) == + GDK_WINDOW_XWINDOW (invisible->window)) + { + XClientMessageEvent xev; + + xev.type = ClientMessage; + xev.window = RootWindowOfScreen (xscreen); + xev.message_type = XInternAtom (DisplayOfScreen (xscreen), "MANAGER", False); + + xev.format = 32; + xev.data.l[0] = timestamp; + xev.data.l[1] = 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 (DisplayOfScreen (xscreen), + RootWindowOfScreen (xscreen), + False, StructureNotifyMask, (XEvent *)&xev); + + manager->invisible = invisible; + g_object_ref (G_OBJECT (manager->invisible)); + + manager->opcode_atom = XInternAtom (DisplayOfScreen (xscreen), + "_NET_SYSTEM_TRAY_OPCODE", + False); + + manager->message_data_atom = XInternAtom (DisplayOfScreen (xscreen), + "_NET_SYSTEM_TRAY_MESSAGE_DATA", + False); + + /* Add a window filter */ + gdk_window_add_filter (invisible->window, egg_tray_manager_window_filter, manager); + return TRUE; + } + else + { + gtk_widget_destroy (invisible); + + return FALSE; + } +} + +gboolean +egg_tray_manager_manage_screen (EggTrayManager *manager, + GdkScreen *screen) +{ + g_return_val_if_fail (GDK_IS_SCREEN (screen), FALSE); + g_return_val_if_fail (manager->screen == NULL, FALSE); + + return egg_tray_manager_manage_xscreen (manager, + GDK_SCREEN_XSCREEN (screen)); +} + +static gboolean +egg_tray_manager_check_running_xscreen (Screen *xscreen) +{ + Atom selection_atom; + char *selection_atom_name; + + selection_atom_name = g_strdup_printf ("_NET_SYSTEM_TRAY_S%d", + XScreenNumberOfScreen (xscreen)); + selection_atom = XInternAtom (DisplayOfScreen (xscreen), selection_atom_name, False); + g_free (selection_atom_name); + + if (XGetSelectionOwner (DisplayOfScreen (xscreen), selection_atom)) + return TRUE; + else + return FALSE; +} + +gboolean +egg_tray_manager_check_running (GdkScreen *screen) +{ + g_return_val_if_fail (GDK_IS_SCREEN (screen), FALSE); + + return egg_tray_manager_check_running_xscreen (GDK_SCREEN_XSCREEN (screen)); +} + +char * +egg_tray_manager_get_child_title (EggTrayManager *manager, + EggTrayManagerChild *child) +{ + Window *child_window; + Atom utf8_string, atom, type; + int result; + char *retval; + int format; + gulong nitems; + gulong bytes_after; + guchar *val; + + g_return_val_if_fail (EGG_IS_TRAY_MANAGER (manager), NULL); + g_return_val_if_fail (GTK_IS_SOCKET (child), NULL); + + child_window = g_object_get_data (G_OBJECT (child), + "egg-tray-child-window"); + + utf8_string = XInternAtom (GDK_DISPLAY (), "UTF8_STRING", False); + atom = XInternAtom (GDK_DISPLAY (), "_NET_WM_NAME", False); + + gdk_error_trap_push (); + + result = XGetWindowProperty (GDK_DISPLAY (), + *child_window, + atom, + 0, G_MAXLONG, + False, utf8_string, + &type, &format, &nitems, + &bytes_after, (guchar **)&val); + + if (gdk_error_trap_pop () || result != Success) + return NULL; + + if (type != utf8_string || + format != 8 || + nitems == 0) + { + if (val) + XFree (val); + return NULL; + } + + if (!g_utf8_validate (val, nitems, NULL)) + { + XFree (val); + return NULL; + } + + retval = g_strndup (val, nitems); + + XFree (val); + + return retval; + +} + +void +egg_tray_manager_set_orientation (EggTrayManager *manager, + GtkOrientation orientation) +{ + g_return_if_fail (EGG_IS_TRAY_MANAGER (manager)); + + if (manager->orientation != orientation) + { + manager->orientation = orientation; + + egg_tray_manager_set_orientation_property (manager); + + g_object_notify (G_OBJECT (manager), "orientation"); + } +} + +GtkOrientation +egg_tray_manager_get_orientation (EggTrayManager *manager) +{ + g_return_val_if_fail (EGG_IS_TRAY_MANAGER (manager), GTK_ORIENTATION_HORIZONTAL); + + return manager->orientation; +} |