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path: root/src/bookmarks/ephy-topic-action.c
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/*
 *  Copyright (C) 2003, 2004 Marco Pesenti Gritti
 *
 *  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, 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.
 *
 *  $Id$
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <gtk/gtktoolitem.h>
#include <glib/gi18n.h>
#include <libgnomevfs/gnome-vfs-uri.h>
#include <string.h>

#include "ephy-topic-action.h"
#include "ephy-node-common.h"
#include "ephy-bookmarks.h"
#include "ephy-bookmarksbar.h"
#include "ephy-favicon-cache.h"
#include "ephy-shell.h"
#include "ephy-debug.h"
#include "ephy-dnd.h"
#include "ephy-gui.h"
#include "ephy-string.h"
#include "ephy-marshal.h"

static void ephy_topic_action_init       (EphyTopicAction *action);
static void ephy_topic_action_class_init (EphyTopicActionClass *class);

#define LABEL_WIDTH_CHARS 32

#define EPHY_TOPIC_ACTION_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_TOPIC_ACTION, EphyTopicActionPrivate))

static GtkTargetEntry drag_targets[] =
{
    { EPHY_DND_TOPIC_TYPE, 0, 0 }
};
static int n_drag_targets = G_N_ELEMENTS (drag_targets);

struct _EphyTopicActionPrivate
{
    EphyNode *topic_node;

    guint motion_handler;
    guint release_handler;
    gint drag_x;
    gint drag_y;
};

enum
{
    PROP_0,
    PROP_TOPIC
};

enum
{
    OPEN,
    OPEN_IN_TAB,
    OPEN_IN_TABS,
    LAST_SIGNAL
};

static GObjectClass *parent_class = NULL;

static guint ephy_topic_action_signals[LAST_SIGNAL] = { 0 };

GType
ephy_topic_action_get_type (void)
{
    static GType type = 0;

    if (G_UNLIKELY (type == 0))
    {
        static const GTypeInfo type_info =
        {
            sizeof (EphyTopicActionClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) ephy_topic_action_class_init,
            (GClassFinalizeFunc) NULL,
            NULL,
            sizeof (EphyTopicAction),
            0, /* n_preallocs */
            (GInstanceInitFunc) ephy_topic_action_init,
        };

        type = g_type_register_static (GTK_TYPE_ACTION,
                           "EphyTopicAction",
                           &type_info, 0);
    }
    return type;
}

static GtkWidget *
create_tool_item (GtkAction *action)
{
    GtkWidget *item;
    GtkWidget *button;
    GtkWidget *arrow;
    GtkWidget *hbox;
    GtkWidget *label;

    item = (* GTK_ACTION_CLASS (parent_class)->create_tool_item) (action);

    hbox = gtk_hbox_new (FALSE, 0);
    gtk_widget_show (hbox);
    gtk_container_add (GTK_CONTAINER (item), hbox);

    button = gtk_toggle_button_new ();
    gtk_widget_add_events (GTK_WIDGET (button), GDK_BUTTON1_MOTION_MASK);
    gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
    gtk_widget_show (button);
    gtk_container_add (GTK_CONTAINER (hbox), button);
    g_object_set_data (G_OBJECT (item), "button", button);

    arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
    gtk_widget_show (arrow);

    hbox = gtk_hbox_new (FALSE, 3);
    gtk_widget_show (hbox);
    gtk_container_add (GTK_CONTAINER (button), hbox);

    label = gtk_label_new (NULL);
    gtk_widget_show (label);
    gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
    gtk_box_pack_start (GTK_BOX (hbox), arrow, TRUE, TRUE, 0);
    g_object_set_data (G_OBJECT (item), "label", label);

    return item;
}

static void
menu_deactivate_cb (GtkMenuShell *ms, GtkWidget *button)
{
    g_object_set_data (G_OBJECT (button), "popup", NULL);
    gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), FALSE);
    gtk_button_released (GTK_BUTTON (button));
}

static void
menu_activate_cb (GtkWidget *item, GtkAction *action)
{
    EphyNode *node;
    const char *location;

    node = g_object_get_data (G_OBJECT (item), "node");
    location = ephy_node_get_property_string
        (node, EPHY_NODE_BMK_PROP_LOCATION);

    if (ephy_gui_is_middle_click ())
    {
        g_signal_emit (action, ephy_topic_action_signals[OPEN_IN_TAB],
                   0, location, FALSE);
    }
    else
    {
        g_signal_emit (action, ephy_topic_action_signals[OPEN],
                   0, location);
    }
}

#define MAX_LABEL_LENGTH    32

static void
ephy_topic_action_sync_label (GtkAction *gaction,
                  GParamSpec *pspec,
                  GtkWidget *proxy)
{
    EphyTopicAction *action = EPHY_TOPIC_ACTION (gaction);

    g_return_if_fail (EPHY_IS_NODE (action->priv->topic_node));

    /* note that we cannot use ellipsizing label with defined width,
     * since that makes the label exactly that wide, even if the
     * text takes less space. So we have to shorten the string.
     */
    if (GTK_IS_TOOL_ITEM (proxy))
    {
        GtkWidget *label = NULL;
        const char *title;
        char *title_short;

        label = g_object_get_data (G_OBJECT (proxy), "label");
        g_return_if_fail (label != NULL);

        title = ephy_node_get_property_string
            (action->priv->topic_node, EPHY_NODE_KEYWORD_PROP_NAME);
        title_short = ephy_string_shorten (title, MAX_LABEL_LENGTH);

        gtk_label_set_label (GTK_LABEL (label), title_short);

        g_free (title_short);
    }
}

static int
sort_bookmarks (gconstpointer a, gconstpointer b)
{
    EphyNode *node_a = (EphyNode *)a;
    EphyNode *node_b = (EphyNode *)b;
    const char *title1, *title2;
    int retval;

    title1 = ephy_node_get_property_string (node_a, EPHY_NODE_BMK_PROP_TITLE);
    title2 = ephy_node_get_property_string (node_b, EPHY_NODE_BMK_PROP_TITLE);
                                                                                                                      
    if (title1 == NULL)
    {
        retval = -1;
    }
    else if (title2 == NULL)
    {
        retval = 1;
    }
    else
    {
        char *str_a, *str_b;

        str_a = g_utf8_casefold (title1, -1);
        str_b = g_utf8_casefold (title2, -1);
        retval = g_utf8_collate (str_a, str_b);
        g_free (str_a);
        g_free (str_b);
    }

    return retval;
}

#define MAX_LENGTH 32

static gboolean
can_open_in_tabs (EphyTopicAction *action)
{
    GPtrArray *children;

    children = ephy_node_get_children (action->priv->topic_node);

    return (children->len > 1);
}

static void
append_bookmarks_menu (EphyTopicAction *action, GtkWidget *menu, EphyNode *node, gboolean show_empty)
{
        EphyFaviconCache *cache;
    GtkWidget *item;
    GtkLabel *label;
    GPtrArray *children;

        cache = EPHY_FAVICON_CACHE
        (ephy_embed_shell_get_favicon_cache (EPHY_EMBED_SHELL (ephy_shell)));

    children = ephy_node_get_children (node);

    if (children->len < 1 && show_empty)
    {
        /* This is the adjective, not the verb */
        item = gtk_menu_item_new_with_label (_("Empty"));
        gtk_widget_set_sensitive (item, FALSE);
        gtk_widget_show (item);
        gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

        return;
    }
    else
    {
        GList *node_list = NULL, *l;
        int i;

        for (i = 0; i < children->len; ++i)
        {
            node_list = g_list_prepend (node_list,
                           g_ptr_array_index (children, i));
        }

        node_list = g_list_sort (node_list, (GCompareFunc)sort_bookmarks);

        for (l = g_list_first (node_list); l != NULL; l = g_list_next (l))
        {
            EphyNode *kid;
            const char *icon_location;
            const char *title;

            kid = (EphyNode*)l->data;

            icon_location = ephy_node_get_property_string
                (kid, EPHY_NODE_BMK_PROP_ICON);
            title = ephy_node_get_property_string
                (kid, EPHY_NODE_BMK_PROP_TITLE);
            if (title == NULL) continue;

            item = gtk_image_menu_item_new_with_label (title);
            label = (GtkLabel *) ((GtkBin *) item)->child;
            gtk_label_set_width_chars (label, LABEL_WIDTH_CHARS);
            gtk_label_set_ellipsize (label, PANGO_ELLIPSIZE_END);

            if (icon_location)
            {
                GdkPixbuf *icon;
                GtkWidget *image;

                icon = ephy_favicon_cache_get (cache, icon_location);
                if (icon != NULL)
                {
                    image = gtk_image_new_from_pixbuf (icon);
                    gtk_widget_show (image);
                    gtk_image_menu_item_set_image
                        (GTK_IMAGE_MENU_ITEM (item), image);
                    g_object_unref (icon);
                }
            }

            g_object_set_data (G_OBJECT (item), "node", kid);
            g_signal_connect (item, "activate",
                      G_CALLBACK (menu_activate_cb), action);
            gtk_widget_show (item);
            gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
        }

        g_list_free (node_list);
    }
}

static void
open_in_tabs_activate_cb (GtkWidget *menu, EphyTopicAction *action)
{
    GList *uri_list = NULL;
    GPtrArray *children;
    int i;

    children = ephy_node_get_children (action->priv->topic_node);
    for (i = 0; i < children->len; i++)
    {
        const char *address;
        EphyNode *child;

        child = g_ptr_array_index (children, i);
        address = ephy_node_get_property_string
            (child, EPHY_NODE_BMK_PROP_LOCATION);
        uri_list = g_list_append (uri_list, g_strdup (address));
    }

    g_signal_emit (action, ephy_topic_action_signals[OPEN_IN_TABS],
               0, uri_list);
    g_list_foreach (uri_list, (GFunc)g_free, NULL);
    g_list_free (uri_list);
}

static int
get_item_position (GtkWidget *widget, gboolean *last)
{
    GtkWidget *item, *toolbar;
    int index;

    item = gtk_widget_get_ancestor (widget, GTK_TYPE_TOOL_ITEM);
    g_return_val_if_fail (item != NULL, -1);

    toolbar = gtk_widget_get_ancestor (widget, GTK_TYPE_TOOLBAR);
    g_return_val_if_fail (toolbar != NULL, -1);

    index = gtk_toolbar_get_item_index (GTK_TOOLBAR (toolbar),
                            GTK_TOOL_ITEM (item));
    if (last)
    {
        int n_items;

        n_items = gtk_toolbar_get_n_items (GTK_TOOLBAR (toolbar));
        *last = (index == n_items - 1);
    }

    return index;
}

static void
remove_from_model (GtkWidget *widget)
{
    EphyBookmarks *bookmarks;
    EggToolbarsModel *model;
    int pos;

    pos = get_item_position (widget, NULL);

    bookmarks = ephy_shell_get_bookmarks (ephy_shell);
    model = EGG_TOOLBARS_MODEL (ephy_bookmarks_get_toolbars_model (bookmarks));

    egg_toolbars_model_remove_item (model, 0, pos);
}

static void
move_in_model (GtkWidget *widget, int direction)
{
    EphyBookmarks *bookmarks;
    EggToolbarsModel *model;
    int pos, new_pos;

    bookmarks = ephy_shell_get_bookmarks (ephy_shell);
    model = EGG_TOOLBARS_MODEL (ephy_bookmarks_get_toolbars_model (bookmarks));

    pos = get_item_position (widget, NULL);
    new_pos = MAX (0, pos + direction);

    egg_toolbars_model_move_item (model, 0, pos, 0, new_pos);
}

static void
remove_activate_cb (GtkWidget *menu, GtkWidget *proxy)
{
    remove_from_model (proxy);
}

static void
move_left_activate_cb (GtkWidget *menu, GtkWidget *proxy)
{
    move_in_model (proxy, -1);
}

static void
move_right_activate_cb (GtkWidget *menu, GtkWidget *proxy)
{
    move_in_model (proxy, +1);
}

static GtkWidget *
add_open_in_tabs_menu (EphyTopicAction *action, GtkWidget *menu)
{
    GtkWidget *item;

    item = gtk_menu_item_new_with_mnemonic (_("_Open in Tabs"));
    gtk_widget_show (item);
    gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

    g_signal_connect (item, "activate",
              G_CALLBACK (open_in_tabs_activate_cb), action);

    return item;
}

static GtkWidget *
build_bookmarks_menu (EphyTopicAction *action, EphyNode *node)
{
    GtkWidget *menu;

    menu = gtk_menu_new ();

    append_bookmarks_menu (action, menu, node, TRUE);

    if (can_open_in_tabs (action))
    {
        GtkWidget *item;

        item = gtk_separator_menu_item_new ();
        gtk_widget_show (item);
        gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

        add_open_in_tabs_menu (action, menu);
    }

    return menu;
}

static int
sort_topics (gconstpointer a, gconstpointer b)
{
    EphyNode *node_a = (EphyNode *)a;
    EphyNode *node_b = (EphyNode *)b;
    const char *title1, *title2;
    int retval;

    title1 = ephy_node_get_property_string (node_a, EPHY_NODE_KEYWORD_PROP_NAME);
    title2 = ephy_node_get_property_string (node_b, EPHY_NODE_KEYWORD_PROP_NAME);
                                                                                                                      
    if (title1 == NULL)
    {
        retval = -1;
    }
    else if (title2 == NULL)
    {
        retval = 1;
    }
    else
    {
        char *str_a, *str_b;

        str_a = g_utf8_casefold (title1, -1);
        str_b = g_utf8_casefold (title2, -1);
        retval = g_utf8_collate (str_a, str_b);
        g_free (str_a);
        g_free (str_b);
    }

    return retval;
}

static GtkWidget *
build_topics_menu (EphyTopicAction *action)
{
    GtkWidget *menu, *item;
    GPtrArray *children;
    int i;
    EphyBookmarks *bookmarks;
    EphyNode *all, *uncategorized, *node;
    EphyNodePriority priority;
    GList *node_list = NULL, *l = NULL;

    bookmarks = ephy_shell_get_bookmarks (ephy_shell);
    all = ephy_bookmarks_get_bookmarks (bookmarks);
    node = ephy_bookmarks_get_keywords (bookmarks);

    menu = gtk_menu_new ();

    children = ephy_node_get_children (node);

    for (i = 0; i < children->len; ++i)
    {
        EphyNode *kid;

        kid = g_ptr_array_index (children, i);
        priority = ephy_node_get_property_int
            (kid, EPHY_NODE_KEYWORD_PROP_PRIORITY);
        if (priority == EPHY_NODE_NORMAL_PRIORITY)
        {
            node_list = g_list_prepend (node_list, kid);
        }
    }

    node_list = g_list_sort (node_list, (GCompareFunc)sort_topics);

    for (l = g_list_first (node_list); l != NULL; l = g_list_next (l))
    {
        EphyNode *kid;
        const char *title;
        GtkWidget *bmk_menu;
        GtkLabel *label;

        kid = (EphyNode*)l->data;
        if (kid == all) continue;

        title = ephy_node_get_property_string
            (kid, EPHY_NODE_KEYWORD_PROP_NAME);

        item = gtk_image_menu_item_new_with_label (title);
        label = (GtkLabel *) ((GtkBin *) item)->child;
        gtk_label_set_width_chars (label, LABEL_WIDTH_CHARS);
        gtk_label_set_ellipsize (label, PANGO_ELLIPSIZE_END);

        gtk_widget_show (item);
        gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

        bmk_menu = build_bookmarks_menu (action, kid);
        gtk_widget_show (bmk_menu);
        gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), bmk_menu);
    }
    g_list_free (node_list);

    uncategorized = ephy_bookmarks_get_not_categorized (bookmarks);
    append_bookmarks_menu (action, menu, uncategorized, FALSE);

    return menu;
}

static GtkWidget *
build_menu (EphyTopicAction *action)
{
    if (ephy_node_get_id (action->priv->topic_node) == BOOKMARKS_NODE_ID)
    {
        return build_topics_menu (action);
    }
    else
    {
        return build_bookmarks_menu (action, action->priv->topic_node);
    }
}

static void
drag_data_get_cb (GtkWidget *widget, GdkDragContext *context,
          GtkSelectionData *selection_data, guint info,
          guint32 time, EphyTopicAction *action)
{
    EphyBookmarks *bookmarks;
    char *uri;

    bookmarks = ephy_shell_get_bookmarks (ephy_shell);
    g_return_if_fail (bookmarks != NULL);

    uri = ephy_bookmarks_get_topic_uri (bookmarks, action->priv->topic_node);
    g_return_if_fail (uri != NULL);

    gtk_selection_data_set (selection_data, selection_data->target, 8,
                (unsigned char *) uri, strlen (uri));

    g_free (uri);
}

static void
drag_data_delete_cb (GtkWidget *widget, GdkDragContext *context,
             EphyTopicAction *action)
{
    remove_from_model (widget);
}

static void
stop_drag_check (EphyTopicAction *action, GtkWidget *widget)
{
    if (action->priv->motion_handler)
    {
        g_signal_handler_disconnect (widget, action->priv->motion_handler);
        action->priv->motion_handler = 0;

        g_signal_handler_disconnect (widget, action->priv->release_handler);
        action->priv->release_handler = 0;
    }
}

static gboolean
check_horizontal_threshold (GtkWidget *widget, gint start_x, gint start_y,
                gint current_x, gint current_y)
{
    gint drag_threshold;

    g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);

    g_object_get (gtk_widget_get_settings (widget),
              "gtk-dnd-drag-threshold", &drag_threshold,
              NULL);

    return (ABS (current_x - start_x) > drag_threshold &&
        ABS (current_y - start_y) < drag_threshold);
}

static gboolean
drag_motion_cb (GtkWidget *widget, GdkEventMotion *event, EphyTopicAction *action)
{
    GtkWidget *button, *event_widget;

    event_widget = gtk_get_event_widget ((GdkEvent*) event);
    button = GTK_WIDGET (g_object_get_data (G_OBJECT (widget), "button"));

    if (!gtk_widget_is_ancestor (event_widget, widget) &&
        check_horizontal_threshold (widget, action->priv->drag_x,
                        action->priv->drag_y, event->x, event->y))
    {
        GtkTargetList *target_list;

        target_list = gtk_target_list_new (drag_targets, n_drag_targets);

        stop_drag_check (action, widget);
        gtk_menu_popdown (GTK_MENU (widget));
        gtk_drag_begin (button, target_list, GDK_ACTION_MOVE |
                GDK_ACTION_COPY, 1, (GdkEvent*)event);

        gtk_target_list_unref (target_list);
    }

    return TRUE;
}

static void
button_toggled_cb (GtkWidget *button,
           EphyTopicAction *action)
{
    if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button)))
    {
        GtkWidget *menu;

        menu = build_menu (action);
        g_signal_connect (menu, "deactivate",
                  G_CALLBACK (menu_deactivate_cb), button);
        gtk_menu_popup (GTK_MENU (menu), NULL, NULL,
                ephy_gui_menu_position_under_widget,
                button, 1, gtk_get_current_event_time ());

        g_object_set_data (G_OBJECT (button), "popup", menu);
    }
}

static GtkWidget *
create_menu_item (GtkAction *action)
{
    GtkWidget *menu, *menu_item;
    GValue value = { 0, };
    const char *title;

    g_value_init (&value, G_TYPE_STRING);
    g_object_get_property (G_OBJECT (action), "label", &value);

    title = g_value_get_string (&value);

    menu_item = gtk_menu_item_new_with_label (title);

    g_value_unset (&value);

    menu = build_menu (EPHY_TOPIC_ACTION (action));
    gtk_widget_show (menu);

    gtk_menu_item_set_submenu (GTK_MENU_ITEM (menu_item), menu);

    return menu_item;
}

static void
show_context_menu (EphyTopicAction *action, GtkWidget *proxy,
           GtkMenuPositionFunc func)
{
    GtkWidget *menu, *item;
    gboolean last;

    menu = gtk_menu_new ();

    item = add_open_in_tabs_menu (action, menu);
    gtk_widget_set_sensitive (item, can_open_in_tabs (action));

    item = gtk_separator_menu_item_new ();
    gtk_widget_show (item);
    gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

    item = gtk_image_menu_item_new_from_stock (GTK_STOCK_REMOVE, NULL);
    gtk_widget_show (item);
    gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
    g_signal_connect (item, "activate",
              G_CALLBACK (remove_activate_cb), proxy);

    item = gtk_separator_menu_item_new ();
    gtk_widget_show (item);
    gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

    item = gtk_menu_item_new_with_mnemonic (_("Move _Left"));
    gtk_widget_set_sensitive (item, get_item_position (proxy, NULL) > 0);
    gtk_widget_show (item);
    gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
    g_signal_connect (item, "activate",
              G_CALLBACK (move_left_activate_cb), proxy);

    item = gtk_menu_item_new_with_mnemonic (_("Move Ri_ght"));
    get_item_position (proxy, &last);
    gtk_widget_set_sensitive (item, !last);
    gtk_widget_show (item);
    gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
    g_signal_connect (item, "activate",
              G_CALLBACK (move_right_activate_cb), proxy);

    gtk_menu_popup (GTK_MENU (menu), NULL, NULL, func, proxy, 3,
            gtk_get_current_event_time ());
}

static gboolean
popup_menu_cb (GtkWidget *widget, EphyTopicAction *action)
{
    if (gtk_widget_get_ancestor (widget, EPHY_TYPE_BOOKMARKSBAR))
        {
                show_context_menu (action, widget,
                   ephy_gui_menu_position_under_widget);
        return TRUE;
        }

    return FALSE;
}

static gboolean
button_release_cb (GtkWidget *widget,
                   GdkEventButton *event,
           EphyTopicAction *action)
{
    if (event->button == 1)
    {
        stop_drag_check (action, widget);

        if (GTK_IS_TOGGLE_BUTTON (widget))
        {
            gtk_toggle_button_set_active
                (GTK_TOGGLE_BUTTON (widget), FALSE);
        }
    }

    return FALSE;
}

static gboolean
button_press_cb (GtkWidget *widget,
         GdkEventButton *event,
         EphyTopicAction *action)
{
    if (event->button == 1 &&
        gtk_widget_get_ancestor (widget, EPHY_TYPE_BOOKMARKSBAR))
    {
        if (!gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
        {
            GtkWidget *menu;

            gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
            menu = g_object_get_data (G_OBJECT (widget), "popup");
            g_return_val_if_fail (menu != NULL, FALSE);

            g_object_set_data (G_OBJECT (menu), "button", widget);

            action->priv->drag_x = event->x;
            action->priv->drag_y = event->y;
            action->priv->motion_handler = g_signal_connect
                (menu, "motion_notify_event",
                 G_CALLBACK (drag_motion_cb), action);
            action->priv->release_handler = g_signal_connect
                (menu, "button_release_event",
                 G_CALLBACK (button_release_cb), action);
        
            return TRUE;
        }
    }
    else if (event->button == 3 &&
             gtk_widget_get_ancestor (widget, EPHY_TYPE_BOOKMARKSBAR))  
    {
        show_context_menu (action, widget, NULL);
        return TRUE;
    }

    return FALSE;
}

static void
connect_proxy (GtkAction *action, GtkWidget *proxy)
{
    GtkWidget *button;

    LOG ("connect_proxy action %p, proxy %p", action, proxy)

    (* GTK_ACTION_CLASS (parent_class)->connect_proxy) (action, proxy);

    if (GTK_IS_TOOL_ITEM (proxy))
    {
        ephy_topic_action_sync_label (action, NULL, proxy);
        g_signal_connect_object (action, "notify::label",
                     G_CALLBACK (ephy_topic_action_sync_label), proxy, 0);

        button = GTK_WIDGET (g_object_get_data (G_OBJECT (proxy), "button"));
        g_signal_connect (button, "toggled",
                  G_CALLBACK (button_toggled_cb), action);
        g_signal_connect (button, "popup_menu",
                  G_CALLBACK (popup_menu_cb), action);
        g_signal_connect (button, "button-press-event",
                  G_CALLBACK (button_press_cb), action);
        g_signal_connect (button, "button-release-event",
                  G_CALLBACK (button_release_cb), action);
        g_signal_connect (button, "drag_data_get",
                  G_CALLBACK (drag_data_get_cb), action);
        g_signal_connect (button, "drag_data_delete",
                  G_CALLBACK (drag_data_delete_cb), action);
    }
}


static void
topic_changed_cb (EphyNode *node,
          guint property_id,
          EphyTopicAction *action)
{
    if (property_id == EPHY_NODE_KEYWORD_PROP_NAME)
    {
        GValue value = { 0, };
        const char *title;
        int priority;

        priority = ephy_node_get_property_int 
            (node, EPHY_NODE_KEYWORD_PROP_PRIORITY);

        if (priority == EPHY_NODE_ALL_PRIORITY)
        {
            title = _("Bookmarks");
        }
        else
        {
            title = ephy_node_get_property_string
                (node, EPHY_NODE_KEYWORD_PROP_NAME);
        }

        g_value_init(&value, G_TYPE_STRING);
        g_value_set_static_string (&value, title);
        g_object_set_property (G_OBJECT (action), "label", &value);
        g_value_unset (&value);
    }
}

static void
ephy_topic_action_set_topic (EphyTopicAction *action,
                 EphyNode *node)
{
    action->priv->topic_node = node;

    topic_changed_cb (node, EPHY_NODE_KEYWORD_PROP_NAME, action);
    ephy_node_signal_connect_object (node, EPHY_NODE_CHANGED,
                         (EphyNodeCallback) topic_changed_cb,
                         G_OBJECT (action));
}

static void
ephy_topic_action_set_property (GObject *object,
                                guint prop_id,
                                const GValue *value,
                                GParamSpec *pspec)
{
    EphyTopicAction *topic;

    topic = EPHY_TOPIC_ACTION (object);

    switch (prop_id)
    {
        case PROP_TOPIC:
            ephy_topic_action_set_topic (topic, g_value_get_pointer (value));
            break;
    }
}

static void
ephy_topic_action_get_property (GObject *object,
                                   guint prop_id,
                                   GValue *value,
                                   GParamSpec *pspec)
{
    /* no readable properties */
    g_return_if_reached ();
}

static void
ephy_topic_action_class_init (EphyTopicActionClass *class)
{
    GObjectClass *object_class = G_OBJECT_CLASS (class);
    GtkActionClass *action_class = GTK_ACTION_CLASS (class);

    parent_class = g_type_class_peek_parent (class);

    action_class->toolbar_item_type = GTK_TYPE_TOOL_ITEM;
    action_class->create_tool_item = create_tool_item;
    action_class->create_menu_item = create_menu_item;
    action_class->connect_proxy = connect_proxy;

    object_class->set_property = ephy_topic_action_set_property;
    object_class->get_property = ephy_topic_action_get_property;

    ephy_topic_action_signals[OPEN] =
                g_signal_new ("open",
                              G_OBJECT_CLASS_TYPE (object_class),
                              G_SIGNAL_RUN_FIRST,
                              G_STRUCT_OFFSET (EphyTopicActionClass, open),
                              NULL, NULL,
                              g_cclosure_marshal_VOID__STRING,
                              G_TYPE_NONE,
                              1,
                  G_TYPE_STRING);

    ephy_topic_action_signals[OPEN_IN_TAB] =
                g_signal_new ("open_in_tab",
                              G_OBJECT_CLASS_TYPE (object_class),
                              G_SIGNAL_RUN_FIRST,
                              G_STRUCT_OFFSET (EphyTopicActionClass, open_in_tab),
                              NULL, NULL,
                              ephy_marshal_VOID__STRING_BOOLEAN,
                              G_TYPE_NONE,
                              2,
                  G_TYPE_STRING,
                  G_TYPE_BOOLEAN);

    ephy_topic_action_signals[OPEN_IN_TABS] =
                g_signal_new ("open_in_tabs",
                              G_OBJECT_CLASS_TYPE (object_class),
                              G_SIGNAL_RUN_FIRST,
                              G_STRUCT_OFFSET (EphyTopicActionClass, open_in_tabs),
                              NULL, NULL,
                              g_cclosure_marshal_VOID__POINTER,
                              G_TYPE_NONE,
                              1,
                  G_TYPE_POINTER);

    g_object_class_install_property
        (object_class,
         PROP_TOPIC,
         g_param_spec_pointer ("topic",
                       "Topic",
                       "Topic",
                       G_PARAM_WRITABLE |
                       G_PARAM_CONSTRUCT_ONLY));

    g_type_class_add_private (object_class, sizeof(EphyTopicActionPrivate));
}

static void
ephy_topic_action_init (EphyTopicAction *action)
{
    action->priv = EPHY_TOPIC_ACTION_GET_PRIVATE (action);
}

GtkAction *
ephy_topic_action_new (const char *name,
               EphyNode *node)
{
    return g_object_new (EPHY_TYPE_TOPIC_ACTION,
                 "name", name,
                 "topic", node,
                 NULL);
}