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mutter-performance-source/clutter/cally/cally-group.c

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/* CALLY - The Clutter Accessibility Implementation Library
*
* Copyright (C) 2008 Igalia, S.L.
*
* Author: Alejandro Piñeiro Iglesias <apinheiro@igalia.com>
*
* Based on GailContainer from GAIL
* Copyright 2001, 2002, 2003 Sun Microsystems Inc.
*
* This library 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) 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
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* SECTION:cally-group
* @Title: CallyGroup
* @short_description: Implementation of the ATK interfaces for a #ClutterGroup
* @see_also: #ClutterGroup
*
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* #CallyGroup implements the required ATK interfaces of #ClutterGroup
* In particular it exposes:
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*
* <itemizedlist>
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* <listitem><simpara>Each of the Clutter actors contained in the
* Group.</simpara></listitem>
* </itemizedlist>
*/
#include "cally-group.h"
#include "cally-actor-private.h"
static gint cally_group_get_n_children (AtkObject *obj);
static AtkObject* cally_group_ref_child (AtkObject *obj,
gint i);
static void cally_group_real_initialize (AtkObject *obj,
gpointer data);
G_DEFINE_TYPE (CallyGroup, cally_group, CALLY_TYPE_ACTOR)
static void
cally_group_class_init (CallyGroupClass *klass)
{
/* GObjectClass *gobject_class = G_OBJECT_CLASS (klass); */
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
class->get_n_children = cally_group_get_n_children;
class->ref_child = cally_group_ref_child;
class->initialize = cally_group_real_initialize;
}
static void
cally_group_init (CallyGroup *group)
{
/* nothing to do yet */
}
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/**
* cally_group_new:
* @actor: a #ClutterGroup
*
* Creates a #CallyGroup for @actor
*
* Return value: the newly created #CallyGroup
*
* Since: 1.4
*/
AtkObject *
cally_group_new (ClutterActor *actor)
{
GObject *object = NULL;
AtkObject *accessible = NULL;
g_return_val_if_fail (CLUTTER_IS_GROUP (actor), NULL);
object = g_object_new (CALLY_TYPE_GROUP, NULL);
accessible = ATK_OBJECT (object);
atk_object_initialize (accessible, actor);
return accessible;
}
static gint
cally_group_get_n_children (AtkObject *obj)
{
ClutterActor *actor = NULL;
gint count = 0;
g_return_val_if_fail (CALLY_IS_GROUP (obj), count);
actor = CALLY_GET_CLUTTER_ACTOR (obj);
if (actor == NULL) /* defunct */
return 0;
g_return_val_if_fail (CLUTTER_IS_GROUP(actor), count);
count = clutter_actor_get_n_children (actor);
return count;
}
static AtkObject*
cally_group_ref_child (AtkObject *obj,
gint i)
{
AtkObject *accessible = NULL;
ClutterActor *actor = NULL;
ClutterActor *child = NULL;
g_return_val_if_fail (CALLY_IS_GROUP (obj), NULL);
g_return_val_if_fail ((i >= 0), NULL);
actor = CALLY_GET_CLUTTER_ACTOR (obj);
g_return_val_if_fail (CLUTTER_IS_GROUP(actor), NULL);
child = clutter_actor_get_child_at_index (actor, i);
if (!child)
return NULL;
accessible = clutter_actor_get_accessible (child);
if (accessible != NULL)
g_object_ref (accessible);
return accessible;
}
static void
cally_group_real_initialize (AtkObject *obj,
gpointer data)
{
ATK_OBJECT_CLASS (cally_group_parent_class)->initialize (obj, data);
obj->role = ATK_ROLE_PANEL;
}