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nautilus-menu-item.c

/*
 *  nautilus-menu-item.c - Menu items exported by NautilusMenuProvider
 *                         objects.
 *
 *  Copyright (C) 2003 Novell, Inc.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public
 *  License along with this library; if not, write to the Free
 *  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 * 
 *  Author:  Dave Camp <dave@ximian.com>
 *
 */

#include <config.h>
#include "nautilus-menu.h"
#include "nautilus-extension-i18n.h"

enum {
      ACTIVATE,
      LAST_SIGNAL
};

enum {
      PROP_0,
      PROP_NAME,
      PROP_LABEL,
      PROP_TIP,
      PROP_ICON,
      PROP_SENSITIVE,
      PROP_PRIORITY,
      PROP_MENU,
      LAST_PROP
};

struct _NautilusMenuItemDetails {
      char *name;
      char *label;
      char *tip;
      char *icon;
      NautilusMenu *menu;
      gboolean sensitive;
      gboolean priority;
};

static guint signals[LAST_SIGNAL];

static GObjectClass *parent_class = NULL;

/**
 * nautilus_menu_item_new:
 * @name: the identifier for the menu item
 * @label: the user-visible label of the menu item
 * @tip: the tooltip of the menu item
 * @icon: the name of the icon to display in the menu item
 *
 * Creates a new menu item that can be added to the toolbar or to a contextual menu.
 *
 * Returns: a newly create #NautilusMenuItem
 */
NautilusMenuItem *
nautilus_menu_item_new (const char *name,
                  const char *label,
                  const char *tip,
                  const char *icon)
{
      NautilusMenuItem *item;

      g_return_val_if_fail (name != NULL, NULL);
      g_return_val_if_fail (label != NULL, NULL);
      g_return_val_if_fail (tip != NULL, NULL);

      item = g_object_new (NAUTILUS_TYPE_MENU_ITEM, 
                       "name", name,
                       "label", label,
                       "tip", tip,
                       "icon", icon,
                       NULL);

      return item;
}

/**
 * nautilus_menu_item_activate:
 * @item: pointer to a #NautilusMenuItem
 *
 * emits the activate signal.
 */
void
nautilus_menu_item_activate (NautilusMenuItem *item)
{
      g_signal_emit (item, signals[ACTIVATE], 0);
}

/**
 * nautilus_menu_item_set_submenu:
 * @item: pointer to a #NautilusMenuItem
 * @menu: pointer to a #NautilusMenu to attach to the button
 *
 * Attachs a menu to the given #NautilusMenuItem.
 */
void
nautilus_menu_item_set_submenu (NautilusMenuItem *item, NautilusMenu *menu)
{
      g_object_set (item, "menu", menu, NULL);
}

static void
nautilus_menu_item_get_property (GObject *object,
                         guint param_id,
                         GValue *value,
                         GParamSpec *pspec)
{
      NautilusMenuItem *item;
      
      item = NAUTILUS_MENU_ITEM (object);
      
      switch (param_id) {
      case PROP_NAME :
            g_value_set_string (value, item->details->name);
            break;
      case PROP_LABEL :
            g_value_set_string (value, item->details->label);
            break;
      case PROP_TIP :
            g_value_set_string (value, item->details->tip);
            break;
      case PROP_ICON :
            g_value_set_string (value, item->details->icon);
            break;
      case PROP_SENSITIVE :
            g_value_set_boolean (value, item->details->sensitive);
            break;
      case PROP_PRIORITY :
            g_value_set_boolean (value, item->details->priority);
            break;
      case PROP_MENU :
            g_value_set_object (value, item->details->menu);
            break;
      default :
            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
            break;
      }
}

static void
nautilus_menu_item_set_property (GObject *object,
                         guint param_id,
                         const GValue *value,
                         GParamSpec *pspec)
{
      NautilusMenuItem *item;
      
      item = NAUTILUS_MENU_ITEM (object);

      switch (param_id) {
      case PROP_NAME :
            g_free (item->details->name);
            item->details->name = g_strdup (g_value_get_string (value));
            g_object_notify (object, "name");
            break;
      case PROP_LABEL :
            g_free (item->details->label);
            item->details->label = g_strdup (g_value_get_string (value));
            g_object_notify (object, "label");
            break;
      case PROP_TIP :
            g_free (item->details->tip);
            item->details->tip = g_strdup (g_value_get_string (value));
            g_object_notify (object, "tip");
            break;
      case PROP_ICON :
            g_free (item->details->icon);
            item->details->icon = g_strdup (g_value_get_string (value));
            g_object_notify (object, "icon");
            break;
      case PROP_SENSITIVE :
            item->details->sensitive = g_value_get_boolean (value);
            g_object_notify (object, "sensitive");
            break;
      case PROP_PRIORITY :
            item->details->priority = g_value_get_boolean (value);
            g_object_notify (object, "priority");
            break;
      case PROP_MENU :
            if (item->details->menu) {
                  g_object_unref (item->details->menu);
            }
            item->details->menu = g_object_ref (g_value_get_object (value));
            g_object_notify (object, "menu");
            break;
      default :
            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
            break;
      }
}

static void
nautilus_menu_item_finalize (GObject *object)
{
      NautilusMenuItem *item;

      item = NAUTILUS_MENU_ITEM (object);

      g_free (item->details->name);
      g_free (item->details->label);
      g_free (item->details->tip);
      g_free (item->details->icon);
      if (item->details->menu) {
            g_object_unref (item->details->menu);
      }

      g_free (item->details);

      G_OBJECT_CLASS (parent_class)->finalize (object);
}

static void
nautilus_menu_item_instance_init (NautilusMenuItem *item)
{
      item->details = g_new0 (NautilusMenuItemDetails, 1);
      item->details->sensitive = TRUE;
      item->details->menu = NULL;
}

static void
nautilus_menu_item_class_init (NautilusMenuItemClass *class)
{
      parent_class = g_type_class_peek_parent (class);
      
      G_OBJECT_CLASS (class)->finalize = nautilus_menu_item_finalize;
      G_OBJECT_CLASS (class)->get_property = nautilus_menu_item_get_property;
      G_OBJECT_CLASS (class)->set_property = nautilus_menu_item_set_property;

        signals[ACTIVATE] =
                g_signal_new ("activate",
                              G_TYPE_FROM_CLASS (class),
                              G_SIGNAL_RUN_LAST,
                              G_STRUCT_OFFSET (NautilusMenuItemClass, 
                                     activate),
                              NULL, NULL,
                              g_cclosure_marshal_VOID__VOID,
                              G_TYPE_NONE, 0); 

      g_object_class_install_property (G_OBJECT_CLASS (class),
                               PROP_NAME,
                               g_param_spec_string ("name",
                                                "Name",
                                                "Name of the item",
                                                NULL,
                                                G_PARAM_CONSTRUCT_ONLY | G_PARAM_WRITABLE | G_PARAM_READABLE));
      g_object_class_install_property (G_OBJECT_CLASS (class),
                               PROP_LABEL,
                               g_param_spec_string ("label",
                                                "Label",
                                                "Label to display to the user",
                                                NULL,
                                                G_PARAM_READWRITE));
      g_object_class_install_property (G_OBJECT_CLASS (class),
                               PROP_TIP,
                               g_param_spec_string ("tip",
                                                "Tip",
                                                "Tooltip for the menu item",
                                                NULL,
                                                G_PARAM_READWRITE));
      g_object_class_install_property (G_OBJECT_CLASS (class),
                               PROP_ICON,
                               g_param_spec_string ("icon",
                                                "Icon",
                                                "Name of the icon to display in the menu item",
                                                NULL,
                                                G_PARAM_READWRITE));

      g_object_class_install_property (G_OBJECT_CLASS (class),
                               PROP_SENSITIVE,
                               g_param_spec_boolean ("sensitive",
                                                 "Sensitive",
                                                 "Whether the menu item is sensitive",
                                                 TRUE,
                                                 G_PARAM_READWRITE));
      g_object_class_install_property (G_OBJECT_CLASS (class),
                               PROP_PRIORITY,
                               g_param_spec_boolean ("priority",
                                                 "Priority",
                                                 "Show priority text in toolbars",
                                                 TRUE,
                                                 G_PARAM_READWRITE));
      g_object_class_install_property (G_OBJECT_CLASS (class),
                               PROP_MENU,
                               g_param_spec_object ("menu",
                                                 "Menu",
                                                 "The menu belonging to this item. May be null.",
                                                 NAUTILUS_TYPE_MENU,
                                                 G_PARAM_READWRITE));
}

GType 
nautilus_menu_item_get_type (void)
{
      static GType type = 0;
      
      if (!type) {
            const GTypeInfo info = {
                  sizeof (NautilusMenuItemClass),
                  NULL,
                  NULL,
                  (GClassInitFunc)nautilus_menu_item_class_init,
                  NULL,
                  NULL,
                  sizeof (NautilusMenuItem),
                  0,
                  (GInstanceInitFunc)nautilus_menu_item_instance_init
            };
            
            type = g_type_register_static 
                  (G_TYPE_OBJECT, 
                   "NautilusMenuItem",
                   &info, 0);
      }

      return type;
}


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