diff options
Diffstat (limited to 'libcaja-private/caja-trash-monitor.c')
| -rw-r--r-- | libcaja-private/caja-trash-monitor.c | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/libcaja-private/caja-trash-monitor.c b/libcaja-private/caja-trash-monitor.c new file mode 100644 index 00000000..ce344a52 --- /dev/null +++ b/libcaja-private/caja-trash-monitor.c @@ -0,0 +1,250 @@ +/* -*- 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., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. + + Author: Pavel Cisler <[email protected]> +*/ + +#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... */ +} |