path: root/a11y/e-table/gal-a11y-e-table.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Authors: 
 *   Christopher James Lahey <clahey@ximian.com>
 *
 * Copyright (C) 2002 Ximian, Inc.
 */

#include <config.h>
#include "gal-a11y-e-table.h"
#include "gal-a11y-e-table-item.h"
#include "gal-a11y-util.h"
#include <gal/e-table/e-table.h>
#include <gal/e-table/e-table-group.h>
#include <gal/e-table/e-table-group-leaf.h>
#include <gal/e-table/e-table-click-to-add.h>

#define CS_CLASS(a11y) (G_TYPE_INSTANCE_GET_CLASS ((a11y), C_TYPE_STREAM, GalA11yETableClass))
static AtkObjectClass *parent_class;
static GType parent_type;
static gint priv_offset;
#define GET_PRIVATE(object) ((GalA11yETablePrivate *) (((char *) object) + priv_offset))
#define PARENT_TYPE (parent_type)

struct _GalA11yETablePrivate {
    AtkObject *child_item;
};

/* Static functions */

static void
init_child_item (GalA11yETable *a11y)
{
    GalA11yETablePrivate *priv = GET_PRIVATE (a11y);
    ETable *table = E_TABLE (GTK_ACCESSIBLE (a11y)->widget);
    if (priv->child_item == NULL) {
        priv->child_item = atk_gobject_accessible_for_object (G_OBJECT(E_TABLE_GROUP_LEAF (table->group)->item));
        priv->child_item->role = ATK_ROLE_TABLE;
    }
}

static AtkObject*
et_ref_accessible_at_point  (AtkComponent *component,
                 gint x,
                 gint y,
                 AtkCoordType coord_type)
{
    GalA11yETable *a11y = GAL_A11Y_E_TABLE (component);
    init_child_item (a11y);
    return GET_PRIVATE (a11y)->child_item;
}

static gint
et_get_n_children (AtkObject *accessible)
{
    GalA11yETable *a11y = GAL_A11Y_E_TABLE (accessible);
    ETable * et;

    et = E_TABLE(GTK_ACCESSIBLE (a11y)->widget);
    if (et && et->use_click_to_add) {
        return 2;
    }

    return 1;
}

static AtkObject*
et_ref_child (AtkObject *accessible,
          gint i)
{
    GalA11yETable *a11y = GAL_A11Y_E_TABLE (accessible);
    ETable * et;

    et = E_TABLE(GTK_ACCESSIBLE (a11y)->widget);

    if (i == 0) {
        init_child_item (a11y);
        g_object_ref (GET_PRIVATE (a11y)->child_item);
        return GET_PRIVATE (a11y)->child_item;
    } else if (i == 1) {
            AtkObject * accessible;
        ETableClickToAdd * etcta;

        if (et && et->use_click_to_add && et->click_to_add) {
            etcta = E_TABLE_CLICK_TO_ADD(et->click_to_add);
            if (etcta->rect) {
                accessible = atk_gobject_accessible_for_object (G_OBJECT(etcta));
            } else {
                accessible = atk_gobject_accessible_for_object (G_OBJECT(etcta->row));
            }
            return accessible;
        }
    }

    return NULL;
}

static void
et_class_init (GalA11yETableClass *klass)
{
    AtkObjectClass *atk_object_class = ATK_OBJECT_CLASS (klass);

    parent_class                              = g_type_class_ref (PARENT_TYPE);

    atk_object_class->get_n_children          = et_get_n_children;
    atk_object_class->ref_child               = et_ref_child;
}

static void
et_atk_component_iface_init (AtkComponentIface *iface)
{
    iface->ref_accessible_at_point = et_ref_accessible_at_point;
}

static void
et_init (GalA11yETable *a11y)
{
    GalA11yETablePrivate *priv;

    priv = GET_PRIVATE (a11y);

    priv->child_item = NULL;
}

/**
 * gal_a11y_e_table_get_type:
 * @void: 
 * 
 * Registers the &GalA11yETable class if necessary, and returns the type ID
 * associated to it.
 * 
 * Return value: The type ID of the &GalA11yETable class.
 **/
GType
gal_a11y_e_table_get_type (void)
{
    static GType type = 0;

    if (!type) {
        AtkObjectFactory *factory;

        GTypeInfo info = {
            sizeof (GalA11yETableClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) et_class_init,
            (GClassFinalizeFunc) NULL,
            NULL, /* class_data */
            sizeof (GalA11yETable),
            0,
            (GInstanceInitFunc) et_init,
            NULL /* value_table */
        };

        static const GInterfaceInfo atk_component_info = {
            (GInterfaceInitFunc) et_atk_component_iface_init,
            (GInterfaceFinalizeFunc) NULL,
            NULL
        };

        factory = atk_registry_get_factory (atk_get_default_registry (), GTK_TYPE_WIDGET);
        parent_type = atk_object_factory_get_accessible_type (factory);

        type = gal_a11y_type_register_static_with_private (PARENT_TYPE, "GalA11yETable", &info, 0,
                                   sizeof (GalA11yETablePrivate), &priv_offset);
        g_type_add_interface_static (type, ATK_TYPE_COMPONENT, &atk_component_info);
    }

    return type;
}

AtkObject *
gal_a11y_e_table_new (GObject *widget)
{
    GalA11yETable *a11y;
    ETable *table;

    table = E_TABLE (widget);

    a11y = g_object_new (gal_a11y_e_table_get_type (), NULL);

    GTK_ACCESSIBLE (a11y)->widget = GTK_WIDGET (widget);

    return ATK_OBJECT (a11y);
}