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The Clutter Accessibility Library is an implementation of the ATK, the Accessibility Toolkit, which exposes Clutter actors to accessibility tools. This allows not only writing accessible user interfaces, but also allows testing and verification frameworks based on A11Y technologies to inspect and test a Clutter scene graph. http://bugzilla.clutter-project.org/show_bug.cgi?id=2097 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
139 lines
3.9 KiB
C
139 lines
3.9 KiB
C
/* CALLY - The Clutter Accessibility Implementation Library
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*
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* Copyright (C) 2008 Igalia, S.L.
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*
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* Author: Alejandro Piñeiro Iglesias <apinheiro@igalia.com>
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*
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* Based on GailContainer from GAIL
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* Copyright 2001, 2002, 2003 Sun Microsystems Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:callycluttergroup
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* @short_description: Implementation of the ATK interfaces for a #ClutterGroup
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* @see_also: #ClutterGroup
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*
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* #CallyClutterGroup implements the required ATK interfaces of #ClutterGroup
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* In particular it exposes:
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* <itemizedlist>
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* <listitem>Each of the Clutter actors contained in the Clutter Group.</listitem>
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* </itemizedlist>
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*/
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#include "cally-group.h"
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#include "cally-actor-private.h"
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static void cally_group_class_init (CallyGroupClass *klass);
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static void cally_group_init (CallyGroup *group);
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static gint cally_group_get_n_children (AtkObject *obj);
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static AtkObject* cally_group_ref_child (AtkObject *obj,
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gint i);
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static void cally_group_real_initialize (AtkObject *obj,
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gpointer data);
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G_DEFINE_TYPE (CallyGroup, cally_group, CALLY_TYPE_ACTOR)
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static void
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cally_group_class_init (CallyGroupClass *klass)
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{
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/* GObjectClass *gobject_class = G_OBJECT_CLASS (klass); */
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AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
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class->get_n_children = cally_group_get_n_children;
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class->ref_child = cally_group_ref_child;
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class->initialize = cally_group_real_initialize;
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}
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static void
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cally_group_init (CallyGroup *group)
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{
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/* nothing to do yet */
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}
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AtkObject*
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cally_group_new (ClutterActor *actor)
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{
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GObject *object = NULL;
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AtkObject *accessible = NULL;
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g_return_val_if_fail (CLUTTER_IS_GROUP (actor), NULL);
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object = g_object_new (CALLY_TYPE_GROUP, NULL);
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accessible = ATK_OBJECT (object);
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atk_object_initialize (accessible, actor);
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return accessible;
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}
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static gint
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cally_group_get_n_children (AtkObject *obj)
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{
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ClutterActor *actor = NULL;
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gint count = 0;
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g_return_val_if_fail (CALLY_IS_GROUP (obj), count);
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actor = CALLY_GET_CLUTTER_ACTOR (obj);
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if (actor == NULL) /* defunct */
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return 0;
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g_return_val_if_fail (CLUTTER_IS_GROUP(actor), count);
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count = clutter_group_get_n_children (CLUTTER_GROUP (actor));
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return count;
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}
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static AtkObject*
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cally_group_ref_child (AtkObject *obj,
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gint i)
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{
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AtkObject *accessible = NULL;
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ClutterActor *actor = NULL;
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ClutterActor *child = NULL;
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g_return_val_if_fail (CALLY_IS_GROUP (obj), NULL);
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g_return_val_if_fail ((i >= 0), NULL);
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actor = CALLY_GET_CLUTTER_ACTOR (obj);
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g_return_val_if_fail (CLUTTER_IS_GROUP(actor), NULL);
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child = clutter_group_get_nth_child (CLUTTER_GROUP(actor), i);
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if (!child)
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return NULL;
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accessible = clutter_actor_get_accessible (child);
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if (accessible != NULL)
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g_object_ref (accessible);
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return accessible;
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}
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static void
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cally_group_real_initialize (AtkObject *obj,
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gpointer data)
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{
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ATK_OBJECT_CLASS (cally_group_parent_class)->initialize (obj, data);
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obj->role = ATK_ROLE_PANEL;
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}
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