moving from https://github.com/perberos/mate-desktop-environment

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... */
+}