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/*
 * 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/>
 *
 *
 * Authors:
 *      Leon Zhang < leon.zhang@sun.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

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

#include <string.h>
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include "ea-minicard.h"
#include "ea-minicard-view.h"
#include "eab-gui-util.h"
#include "e-addressbook-view.h"

static const gchar * action_name[] = {
    N_("New Contact"),
    N_("New Contact List")
};

static const gchar * ea_minicard_view_get_name (AtkObject *accessible);
static const gchar * ea_minicard_view_get_description (AtkObject *accessible);

static void ea_minicard_view_class_init (EaMinicardViewClass *klass);

static gint ea_minicard_view_get_n_children (AtkObject *obj);
static AtkObject *ea_minicard_view_ref_child (AtkObject *obj, gint i);

static AtkStateSet *ea_minicard_view_ref_state_set (AtkObject *obj);

static void atk_selection_interface_init (AtkSelectionIface *iface);
static gboolean selection_interface_add_selection (AtkSelection *selection,
                           gint i);
static gboolean selection_interface_clear_selection (AtkSelection *selection);
static AtkObject * selection_interface_ref_selection (AtkSelection *selection,
                             gint i);
static gint selection_interface_get_selection_count (AtkSelection *selection);
static gboolean selection_interface_is_child_selected (AtkSelection *selection,
                               gint i);

static void atk_action_interface_init (AtkActionIface *iface);
static gboolean atk_action_interface_do_action (AtkAction *iface, gint i);
static gint atk_action_interface_get_n_action (AtkAction *iface);
static const gchar *
        atk_action_interface_get_description
                        (AtkAction *iface,
                         gint i);
static const gchar *
        atk_action_interface_get_name   (AtkAction *iface,
                         gint i);

static gpointer parent_class = NULL;

GType
ea_minicard_view_get_type (void)
{
    static GType type = 0;
    AtkObjectFactory *factory;
    GTypeQuery query;
    GType derived_atk_type;

    if (!type) {
        static  GTypeInfo tinfo =  {
            sizeof (EaMinicardViewClass),
            (GBaseInitFunc) NULL,  /* base_init */
            (GBaseFinalizeFunc) NULL,  /* base_finalize */
            (GClassInitFunc) ea_minicard_view_class_init,
            (GClassFinalizeFunc) NULL, /* class_finalize */
            NULL,      /* class_data */
            sizeof (EaMinicardView),
            0,       /* n_preallocs */
            (GInstanceInitFunc) NULL, /* instance init */
            NULL /* value table */
        };

        static const GInterfaceInfo atk_selection_info = {
            (GInterfaceInitFunc) atk_selection_interface_init,
            (GInterfaceFinalizeFunc) NULL,
            NULL
        };

        static const GInterfaceInfo atk_action_info = {
            (GInterfaceInitFunc) atk_action_interface_init,
            (GInterfaceFinalizeFunc) NULL,
            NULL
        };

        /*
         * Figure out the size of the class and instance
         * we are run-time deriving from (GailWidget, in this case) */

        factory = atk_registry_get_factory (
            atk_get_default_registry (),
            GNOME_TYPE_CANVAS_GROUP);
        derived_atk_type = atk_object_factory_get_accessible_type (factory);
        g_type_query (derived_atk_type, &query);

        tinfo.class_size = query.class_size;
        tinfo.instance_size = query.instance_size;

        type = g_type_register_static (
            derived_atk_type,
            "EaMinicardView", &tinfo, 0);
        g_type_add_interface_static (
            type, ATK_TYPE_SELECTION,
            &atk_selection_info);
        g_type_add_interface_static (
            type, ATK_TYPE_ACTION,
            &atk_action_info);

    }

    return type;
}

static void
ea_minicard_view_class_init (EaMinicardViewClass *klass)
{
    AtkObjectClass *class = ATK_OBJECT_CLASS (klass);

    parent_class = g_type_class_peek_parent (klass);

    class->get_name = ea_minicard_view_get_name;
    class->get_description = ea_minicard_view_get_description;
    class->ref_state_set = ea_minicard_view_ref_state_set;
    class->get_n_children = ea_minicard_view_get_n_children;
    class->ref_child = ea_minicard_view_ref_child;
}

static const gchar *
ea_minicard_view_get_name (AtkObject *accessible)
{
    EReflow *reflow;
    gchar *string;
    EMinicardView *card_view;
    EBookClient *book_client = NULL;
    ESource *source;
    const gchar *display_name;

    g_return_val_if_fail (EA_IS_MINICARD_VIEW (accessible), NULL);

    reflow = E_REFLOW (atk_gobject_accessible_get_object (
        ATK_GOBJECT_ACCESSIBLE (accessible)));

    if (!reflow)
        return NULL;

    /* Get the current name of minicard view*/
    card_view = E_MINICARD_VIEW (reflow);
    g_object_get (card_view->adapter, "client", &book_client, NULL);
    g_return_val_if_fail (E_IS_BOOK_CLIENT (book_client), NULL);
    source = e_client_get_source (E_CLIENT (book_client));
    display_name = e_source_get_display_name (source);
    if (display_name == NULL)
        display_name = "";

    string = g_strdup_printf (
        ngettext ("current address book folder %s has %d card",
        "current address book folder %s has %d cards",
        reflow->count), display_name, reflow->count);

    ATK_OBJECT_CLASS (parent_class)->set_name (accessible, string);
    g_free (string);
    g_object_unref (book_client);
    return accessible->name;
}

static const gchar *
ea_minicard_view_get_description (AtkObject *accessible)
{
    g_return_val_if_fail (EA_IS_MINICARD_VIEW (accessible), NULL);
    if (accessible->description)
        return accessible->description;

    return _("evolution address book");
}

AtkObject *
ea_minicard_view_new (GObject *obj)
{
    GObject *object;
    AtkObject *accessible;

    g_return_val_if_fail (E_IS_MINICARD_VIEW (obj), NULL);
    object = g_object_new (EA_TYPE_MINICARD_VIEW, NULL);
    accessible = ATK_OBJECT (object);
    atk_object_initialize (accessible, obj);
    accessible->role = ATK_ROLE_PANEL;
    return accessible;
}

static gint
ea_minicard_view_get_n_children (AtkObject *accessible)
{
    EReflow *reflow;

    gint child_num = 0;

    g_return_val_if_fail (EA_IS_MINICARD_VIEW (accessible), -1);

    reflow = E_REFLOW (atk_gobject_accessible_get_object (
        ATK_GOBJECT_ACCESSIBLE (accessible)));

    if (!reflow)
        return -1;

    child_num = reflow->count;

    return child_num;
}

static AtkStateSet *ea_minicard_view_ref_state_set (AtkObject *obj)
{
    AtkStateSet *state_set = NULL;
    GObject *gobj = NULL;

    state_set = ATK_OBJECT_CLASS (parent_class)->ref_state_set (obj);
    if (!state_set)
        state_set = atk_state_set_new ();

    gobj = atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (obj));
    if (!gobj)
        return state_set;

    atk_state_set_add_state (state_set, ATK_STATE_ENABLED);
    atk_state_set_add_state (state_set, ATK_STATE_SENSITIVE);
    atk_state_set_add_state (state_set, ATK_STATE_SHOWING);

    return state_set;
}

static AtkObject *
ea_minicard_view_ref_child (AtkObject *accessible,
                            gint index)
{
    EReflow *reflow;
    gint child_num;
    AtkObject *atk_object = NULL;
    EMinicard *card = NULL;

    g_return_val_if_fail (EA_IS_MINICARD_VIEW (accessible), NULL);

    child_num = atk_object_get_n_accessible_children (accessible);
    if (child_num <= 0 || index < 0 || index >= child_num)
        return NULL;

    reflow = E_REFLOW (atk_gobject_accessible_get_object (
        ATK_GOBJECT_ACCESSIBLE (accessible)));
    if (!reflow)
        return NULL;
    if (!reflow->items)
        return NULL;
        /* a minicard */
    if (index < child_num) {
        card = E_MINICARD (reflow->items[index]);
        atk_object = atk_gobject_accessible_for_object (G_OBJECT (card));
    } else {
        return NULL;
    }

    g_object_ref (atk_object);
        return atk_object;
}

/* atkselection interface */

static void
atk_selection_interface_init (AtkSelectionIface *iface)
{
    g_return_if_fail (iface != NULL);

    iface->add_selection = selection_interface_add_selection;
    iface->clear_selection = selection_interface_clear_selection;
    iface->ref_selection = selection_interface_ref_selection;
    iface->get_selection_count = selection_interface_get_selection_count;
    iface->is_child_selected = selection_interface_is_child_selected;
}

static gboolean
selection_interface_add_selection (AtkSelection *selection,
                                   gint i)
{
    AtkGObjectAccessible *atk_gobj= NULL;
    EReflow *reflow = NULL;

    atk_gobj = ATK_GOBJECT_ACCESSIBLE (selection);
    reflow = E_REFLOW (atk_gobject_accessible_get_object (atk_gobj));

    if (!reflow)
        return FALSE;

    selection_interface_clear_selection (selection);
    e_selection_model_select_single_row (reflow->selection, i);

    return TRUE;
}

static gboolean
selection_interface_clear_selection (AtkSelection *selection)
{
    AtkGObjectAccessible *atk_gobj = NULL;
    EReflow *reflow = NULL;

    atk_gobj = ATK_GOBJECT_ACCESSIBLE (selection);
    reflow = E_REFLOW (atk_gobject_accessible_get_object (atk_gobj));

    if (!reflow)
        return FALSE;

    e_selection_model_clear (reflow->selection);

    return TRUE;
}

static AtkObject *
selection_interface_ref_selection (AtkSelection *selection,
                                   gint i)
{
    return ea_minicard_view_ref_child (ATK_OBJECT (selection), i);
}

static gint
selection_interface_get_selection_count (AtkSelection *selection)
{
    AtkGObjectAccessible *atk_gobj = NULL;
    EReflow *reflow = NULL;

    atk_gobj = ATK_GOBJECT_ACCESSIBLE (selection);
    reflow = E_REFLOW (atk_gobject_accessible_get_object (atk_gobj));

    if (!reflow)
        return FALSE;

    return e_selection_model_selected_count (reflow->selection);
}

static gboolean
selection_interface_is_child_selected (AtkSelection *selection,
                                       gint i)
{
    AtkGObjectAccessible *atk_gobj = NULL;
    EReflow *reflow = NULL;

    atk_gobj = ATK_GOBJECT_ACCESSIBLE (selection);
    reflow = E_REFLOW (atk_gobject_accessible_get_object (atk_gobj));

    if (!reflow)
        return FALSE;

    return e_selection_model_is_row_selected (reflow->selection, i);
}

static void atk_action_interface_init (AtkActionIface *iface)
{
    g_return_if_fail (iface != NULL);

    iface->do_action = atk_action_interface_do_action;
    iface->get_n_actions = atk_action_interface_get_n_action;
    iface->get_description = atk_action_interface_get_description;
    iface->get_name = atk_action_interface_get_name;
}

static gboolean
atk_action_interface_do_action (AtkAction *action,
                                gint i)
{
    gboolean return_value = TRUE;
    EMinicardView *card_view;

    AtkGObjectAccessible *atk_gobj= NULL;
    EReflow *reflow = NULL;

    atk_gobj = ATK_GOBJECT_ACCESSIBLE (action);
    reflow = E_REFLOW (atk_gobject_accessible_get_object (atk_gobj));

    if (reflow == NULL)
        return FALSE;

    card_view = E_MINICARD_VIEW (reflow);

    switch (i) {
        case 0:
        /* New Contact */
            e_minicard_view_create_contact (card_view);
            break;
        case 1:
        /* New Contact List */
            e_minicard_view_create_contact_list (card_view);
            break;
        default:
            return_value = FALSE;
            break;
    }

    return return_value;
}

static gint
atk_action_interface_get_n_action (AtkAction *iface)
{
    return G_N_ELEMENTS (action_name);
}

static const gchar *
atk_action_interface_get_description (AtkAction *iface,
                                      gint i)
{
    return atk_action_interface_get_name (iface, i);
}

static const gchar *
atk_action_interface_get_name (AtkAction *iface,
                               gint i)
{
    if (i >= G_N_ELEMENTS (action_name) || i < 0)
        return NULL;

    return action_name[i];
}