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nautilus-trash-bar.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Copyright (C) 2006 Paolo Borelli <pborelli@katamail.com>
 *
 * 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.
 *
 * Authors: Paolo Borelli <pborelli@katamail.com>
 *
 */

#include "config.h"

#include <glib/gi18n-lib.h>
#include <gtk/gtk.h>

#include "nautilus-trash-bar.h"

#include "nautilus-window.h"
#include <libnautilus-private/nautilus-file-operations.h>
#include <libnautilus-private/nautilus-file-utilities.h>
#include <libnautilus-private/nautilus-file.h>
#include <libnautilus-private/nautilus-trash-monitor.h>

#define NAUTILUS_TRASH_BAR_GET_PRIVATE(o)\
      (G_TYPE_INSTANCE_GET_PRIVATE ((o), NAUTILUS_TYPE_TRASH_BAR, NautilusTrashBarPrivate))

enum {
      PROP_WINDOW = 1,
      NUM_PROPERTIES
};

struct NautilusTrashBarPrivate
{
      GtkWidget *empty_button;
      GtkWidget *restore_button;

      NautilusWindow *window;
      gulong selection_handler_id;
};

G_DEFINE_TYPE (NautilusTrashBar, nautilus_trash_bar, GTK_TYPE_HBOX);

static void
restore_button_clicked_cb (GtkWidget *button,
                     NautilusTrashBar *bar)
{
      GList *locations, *files, *l;

      locations = nautilus_window_info_get_selection (NAUTILUS_WINDOW_INFO  (bar->priv->window));
      files = NULL;

      for (l = locations; l != NULL; l = l->next) {
            files = g_list_prepend (files, nautilus_file_get (l->data));
      }

      nautilus_restore_files_from_trash (files, GTK_WINDOW (gtk_widget_get_toplevel (button)));

      nautilus_file_list_free (files);
      eel_g_object_list_free (locations);
}

static void
selection_changed_cb (NautilusWindow *window,
                  NautilusTrashBar *bar)
{
      int count;

      count = nautilus_window_info_get_selection_count (NAUTILUS_WINDOW_INFO (window));

      gtk_widget_set_sensitive (bar->priv->restore_button, (count > 0));
}

static void
connect_window_and_update_button (NautilusTrashBar *bar)
{
      bar->priv->selection_handler_id =
            g_signal_connect (bar->priv->window, "selection_changed",
                          G_CALLBACK (selection_changed_cb), bar);

      selection_changed_cb (bar->priv->window, bar);
}

static void
nautilus_trash_bar_set_property (GObject      *object,
                         guint         prop_id,
                         const GValue *value,
                         GParamSpec   *pspec)
{
      NautilusTrashBar *bar;

      bar = NAUTILUS_TRASH_BAR (object);

      switch (prop_id) {
      case PROP_WINDOW:
            bar->priv->window = g_value_get_object (value);
            connect_window_and_update_button (bar);
            break;
      default:
            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
            break;
      }
}

static void
nautilus_trash_bar_finalize (GObject *obj)
{
      NautilusTrashBar *bar;

      bar = NAUTILUS_TRASH_BAR (obj);

      if (bar->priv->selection_handler_id) {
            g_signal_handler_disconnect (bar->priv->window, bar->priv->selection_handler_id);
      }

      G_OBJECT_CLASS (nautilus_trash_bar_parent_class)->finalize (obj);
}

static void
nautilus_trash_bar_trash_state_changed (NautilusTrashMonitor *trash_monitor,
                              gboolean              state,
                              gpointer              data)
{
      NautilusTrashBar *bar;

      bar = NAUTILUS_TRASH_BAR (data);

      gtk_widget_set_sensitive (bar->priv->empty_button,
                          !nautilus_trash_monitor_is_empty ());
}

static void
nautilus_trash_bar_class_init (NautilusTrashBarClass *klass)
{
      GObjectClass *object_class;

      object_class = G_OBJECT_CLASS (klass);

      object_class->set_property = nautilus_trash_bar_set_property;
      object_class->finalize = nautilus_trash_bar_finalize;

      g_object_class_install_property (object_class,
                               PROP_WINDOW,
                               g_param_spec_object ("window",
                                                "window",
                                                "the NautilusWindow",
                                                NAUTILUS_TYPE_WINDOW,
                                                G_PARAM_WRITABLE |
                                                G_PARAM_CONSTRUCT_ONLY |
                                                G_PARAM_STATIC_STRINGS));

      g_type_class_add_private (klass, sizeof (NautilusTrashBarPrivate));
}

static void
empty_trash_callback (GtkWidget *button, gpointer data)
{
      GtkWidget *window;
      
      window = gtk_widget_get_toplevel (button);

      nautilus_file_operations_empty_trash (window);
}

static void
nautilus_trash_bar_init (NautilusTrashBar *bar)
{
      GtkWidget *label;
      GtkWidget *hbox;

      bar->priv = NAUTILUS_TRASH_BAR_GET_PRIVATE (bar);

      hbox = GTK_WIDGET (bar);

      label = gtk_label_new (_("Trash"));
      gtk_widget_show (label);
      gtk_box_pack_start (GTK_BOX (bar), label, FALSE, FALSE, 0);

      bar->priv->empty_button = gtk_button_new_with_mnemonic (_("Empty _Trash"));
      gtk_widget_show (bar->priv->empty_button);
      gtk_box_pack_end (GTK_BOX (hbox), bar->priv->empty_button, FALSE, FALSE, 0);

      gtk_widget_set_sensitive (bar->priv->empty_button,
                          !nautilus_trash_monitor_is_empty ());
      gtk_widget_set_tooltip_text (bar->priv->empty_button,
                             _("Delete all items in the Trash"));

      g_signal_connect (bar->priv->empty_button,
                    "clicked",
                    G_CALLBACK (empty_trash_callback),
                    bar);

      bar->priv->restore_button = gtk_button_new_with_mnemonic (_("Restore Selected Items"));
      gtk_widget_show (bar->priv->restore_button);
      gtk_box_pack_end (GTK_BOX (hbox), bar->priv->restore_button, FALSE, FALSE, 6);

      gtk_widget_set_sensitive (bar->priv->restore_button, FALSE);
      gtk_widget_set_tooltip_text (bar->priv->restore_button,
                             _("Restore selected items to their original position"));

      g_signal_connect (bar->priv->restore_button,
                    "clicked",
                    G_CALLBACK (restore_button_clicked_cb),
                    bar);

      g_signal_connect_object (nautilus_trash_monitor_get (),
                         "trash_state_changed",
                         G_CALLBACK (nautilus_trash_bar_trash_state_changed),
                         bar,
                         0);
}

GtkWidget *
nautilus_trash_bar_new (NautilusWindow *window)
{
      GObject *bar;

      bar = g_object_new (NAUTILUS_TYPE_TRASH_BAR, "window", window, NULL);

      return GTK_WIDGET (bar);
}

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