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/*
 * e-selectable.c
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "e-selectable.h"

G_DEFINE_INTERFACE (
    ESelectable,
    e_selectable,
    GTK_TYPE_WIDGET)

static void
e_selectable_default_init (ESelectableInterface *interface)
{
    g_object_interface_install_property (
        interface,
        g_param_spec_boxed (
            "copy-target-list",
            "Copy Target List",
            NULL,
            GTK_TYPE_TARGET_LIST,
            G_PARAM_READABLE));

    g_object_interface_install_property (
        interface,
        g_param_spec_boxed (
            "paste-target-list",
            "Paste Target List",
            NULL,
            GTK_TYPE_TARGET_LIST,
            G_PARAM_READABLE));
}

void
e_selectable_update_actions (ESelectable *selectable,
                             EFocusTracker *focus_tracker,
                             GdkAtom *clipboard_targets,
                             gint n_clipboard_targets)
{
    ESelectableInterface *interface;

    g_return_if_fail (E_IS_SELECTABLE (selectable));

    interface = E_SELECTABLE_GET_INTERFACE (selectable);
    g_return_if_fail (interface->update_actions != NULL);

    interface->update_actions (
        selectable, focus_tracker,
        clipboard_targets, n_clipboard_targets);
}

void
e_selectable_cut_clipboard (ESelectable *selectable)
{
    ESelectableInterface *interface;

    g_return_if_fail (E_IS_SELECTABLE (selectable));

    interface = E_SELECTABLE_GET_INTERFACE (selectable);

    if (interface->cut_clipboard != NULL)
        interface->cut_clipboard (selectable);
}

void
e_selectable_copy_clipboard (ESelectable *selectable)
{
    ESelectableInterface *interface;

    g_return_if_fail (E_IS_SELECTABLE (selectable));

    interface = E_SELECTABLE_GET_INTERFACE (selectable);

    if (interface->copy_clipboard != NULL)
        interface->copy_clipboard (selectable);
}

void
e_selectable_paste_clipboard (ESelectable *selectable)
{
    ESelectableInterface *interface;

    g_return_if_fail (E_IS_SELECTABLE (selectable));

    interface = E_SELECTABLE_GET_INTERFACE (selectable);

    if (interface->paste_clipboard != NULL)
        interface->paste_clipboard (selectable);
}

void
e_selectable_delete_selection (ESelectable *selectable)
{
    ESelectableInterface *interface;

    g_return_if_fail (E_IS_SELECTABLE (selectable));

    interface = E_SELECTABLE_GET_INTERFACE (selectable);

    if (interface->delete_selection != NULL)
        interface->delete_selection (selectable);
}

void
e_selectable_select_all (ESelectable *selectable)
{
    ESelectableInterface *interface;

    g_return_if_fail (E_IS_SELECTABLE (selectable));

    interface = E_SELECTABLE_GET_INTERFACE (selectable);

    if (interface->select_all != NULL)
        interface->select_all (selectable);
}

GtkTargetList *
e_selectable_get_copy_target_list (ESelectable *selectable)
{
    GtkTargetList *target_list;

    g_return_val_if_fail (E_IS_SELECTABLE (selectable), NULL);

    g_object_get (selectable, "copy-target-list", &target_list, NULL);

    /* We want to return a borrowed reference to the target
     * list, so undo the reference that g_object_get() added. */
    gtk_target_list_unref (target_list);

    return target_list;
}

GtkTargetList *
e_selectable_get_paste_target_list (ESelectable *selectable)
{
    GtkTargetList *target_list;

    g_return_val_if_fail (E_IS_SELECTABLE (selectable), NULL);

    g_object_get (selectable, "paste-target-list", &target_list, NULL);

    /* We want to return a borrowed reference to the target
     * list, so undo the reference that g_object_get() added. */
    gtk_target_list_unref (target_list);

    return target_list;
}