/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */ /* caja-trash-monitor.c: Caja trash state watcher. Copyright (C) 2000, 2001 Eazel, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. Author: Pavel Cisler <pavel@eazel.com> */ #include <config.h> #include "caja-trash-monitor.h" #include "caja-directory-notify.h" #include "caja-directory.h" #include "caja-file-attributes.h" #include "caja-icon-names.h" #include <eel/eel-debug.h> #include <gio/gio.h> #include <string.h> struct CajaTrashMonitorDetails { gboolean empty; GIcon *icon; GFileMonitor *file_monitor; }; enum { TRASH_STATE_CHANGED, LAST_SIGNAL }; static guint signals[LAST_SIGNAL]; static CajaTrashMonitor *caja_trash_monitor = NULL; G_DEFINE_TYPE(CajaTrashMonitor, caja_trash_monitor, G_TYPE_OBJECT) static void caja_trash_monitor_finalize (GObject *object) { CajaTrashMonitor *trash_monitor; trash_monitor = CAJA_TRASH_MONITOR (object); if (trash_monitor->details->icon) { g_object_unref (trash_monitor->details->icon); } if (trash_monitor->details->file_monitor) { g_object_unref (trash_monitor->details->file_monitor); } G_OBJECT_CLASS (caja_trash_monitor_parent_class)->finalize (object); } static void caja_trash_monitor_class_init (CajaTrashMonitorClass *klass) { GObjectClass *object_class; object_class = G_OBJECT_CLASS (klass); object_class->finalize = caja_trash_monitor_finalize; signals[TRASH_STATE_CHANGED] = g_signal_new ("trash_state_changed", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (CajaTrashMonitorClass, trash_state_changed), NULL, NULL, g_cclosure_marshal_VOID__BOOLEAN, G_TYPE_NONE, 1, G_TYPE_BOOLEAN); g_type_class_add_private (object_class, sizeof(CajaTrashMonitorDetails)); } static void update_info_cb (GObject *source_object, GAsyncResult *res, gpointer user_data) { CajaTrashMonitor *trash_monitor; GFileInfo *info; GIcon *icon; const char * const *names; gboolean empty; int i; trash_monitor = CAJA_TRASH_MONITOR (user_data); info = g_file_query_info_finish (G_FILE (source_object), res, NULL); if (info != NULL) { icon = g_file_info_get_icon (info); if (icon) { g_object_unref (trash_monitor->details->icon); trash_monitor->details->icon = g_object_ref (icon); empty = TRUE; if (G_IS_THEMED_ICON (icon)) { names = g_themed_icon_get_names (G_THEMED_ICON (icon)); for (i = 0; names[i] != NULL; i++) { if (strcmp (names[i], CAJA_ICON_TRASH_FULL) == 0) { empty = FALSE; break; } } } if (trash_monitor->details->empty != empty) { trash_monitor->details->empty = empty; /* trash got empty or full, notify everyone who cares */ g_signal_emit (trash_monitor, signals[TRASH_STATE_CHANGED], 0, trash_monitor->details->empty); } } g_object_unref (info); } g_object_unref (trash_monitor); } static void schedule_update_info (CajaTrashMonitor *trash_monitor) { GFile *location; location = g_file_new_for_uri ("trash:///"); g_file_query_info_async (location, G_FILE_ATTRIBUTE_STANDARD_ICON, 0, 0, NULL, update_info_cb, g_object_ref (trash_monitor)); g_object_unref (location); } static void file_changed (GFileMonitor* monitor, GFile *child, GFile *other_file, GFileMonitorEvent event_type, gpointer user_data) { CajaTrashMonitor *trash_monitor; trash_monitor = CAJA_TRASH_MONITOR (user_data); schedule_update_info (trash_monitor); } static void caja_trash_monitor_init (CajaTrashMonitor *trash_monitor) { GFile *location; trash_monitor->details = G_TYPE_INSTANCE_GET_PRIVATE (trash_monitor, CAJA_TYPE_TRASH_MONITOR, CajaTrashMonitorDetails); trash_monitor->details->empty = TRUE; trash_monitor->details->icon = g_themed_icon_new (CAJA_ICON_TRASH); location = g_file_new_for_uri ("trash:///"); trash_monitor->details->file_monitor = g_file_monitor_file (location, 0, NULL, NULL); g_signal_connect (trash_monitor->details->file_monitor, "changed", (GCallback)file_changed, trash_monitor); g_object_unref (location); schedule_update_info (trash_monitor); } static void unref_trash_monitor (void) { g_object_unref (caja_trash_monitor); } CajaTrashMonitor * caja_trash_monitor_get (void) { if (caja_trash_monitor == NULL) { /* not running yet, start it up */ caja_trash_monitor = CAJA_TRASH_MONITOR (g_object_new (CAJA_TYPE_TRASH_MONITOR, NULL)); eel_debug_call_at_shutdown (unref_trash_monitor); } return caja_trash_monitor; } gboolean caja_trash_monitor_is_empty (void) { CajaTrashMonitor *monitor; monitor = caja_trash_monitor_get (); return monitor->details->empty; } GIcon * caja_trash_monitor_get_icon (void) { CajaTrashMonitor *monitor; monitor = caja_trash_monitor_get (); if (monitor->details->icon) { return g_object_ref (monitor->details->icon); } return NULL; } void caja_trash_monitor_add_new_trash_directories (void) { /* We trashed something... */ }