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-rw-r--r--libcaja-private/caja-trash-monitor.c250
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diff --git a/libcaja-private/caja-trash-monitor.c b/libcaja-private/caja-trash-monitor.c
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+/* -*- 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... */
+}