260 lines
7.4 KiB
C
260 lines
7.4 KiB
C
/* CALLY - The Clutter Accessibility Implementation Library
|
|
*
|
|
* Copyright (C) 2008 Igalia, S.L.
|
|
*
|
|
* Author: Alejandro Piñeiro Iglesias <apinheiro@igalia.com>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/**
|
|
* SECTION:cally-stage
|
|
* @Title: CallyStage
|
|
* @short_description: Implementation of the ATK interfaces for a #ClutterStage
|
|
* @see_also: #ClutterStage
|
|
*
|
|
* #CallyStage implements the required ATK interfaces for #ClutterStage
|
|
*
|
|
*/
|
|
|
|
#include "cally-stage.h"
|
|
#include "cally-actor-private.h"
|
|
|
|
enum {
|
|
ACTIVATE,
|
|
CREATE,
|
|
DEACTIVATE,
|
|
DESTROY,
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
static guint cally_stage_signals [LAST_SIGNAL] = { 0, };
|
|
|
|
static void cally_stage_class_init (CallyStageClass *klass);
|
|
static void cally_stage_init (CallyStage *stage);
|
|
|
|
/* AtkObject.h */
|
|
static G_CONST_RETURN gchar *cally_stage_get_name (AtkObject *obj);
|
|
static G_CONST_RETURN gchar *cally_stage_get_description (AtkObject *obj);
|
|
static void cally_stage_real_initialize (AtkObject *obj,
|
|
gpointer data);
|
|
static AtkStateSet* cally_stage_ref_state_set (AtkObject *obj);
|
|
|
|
/* Auxiliar */
|
|
static void cally_stage_activate_cb (ClutterStage *stage,
|
|
gpointer data);
|
|
static void cally_stage_deactivate_cb (ClutterStage *stage,
|
|
gpointer data);
|
|
|
|
|
|
#define CALLY_STAGE_DEFAULT_NAME "Stage"
|
|
#define CALLY_STAGE_DEFAULT_DESCRIPTION "Top level 'window' on which child actors are placed and manipulated"
|
|
|
|
G_DEFINE_TYPE (CallyStage, cally_stage, CALLY_TYPE_GROUP);
|
|
|
|
#define CALLY_STAGE_GET_PRIVATE(obj) \
|
|
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), CALLY_TYPE_STAGE, CallyStagePrivate))
|
|
|
|
struct _CallyStagePrivate
|
|
{
|
|
gboolean active;
|
|
};
|
|
|
|
static void
|
|
cally_stage_class_init (CallyStageClass *klass)
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
|
|
/* CallyActorClass *cally_class = CALLY_ACTOR_CLASS (klass); */
|
|
|
|
/* AtkObject */
|
|
class->get_name = cally_stage_get_name;
|
|
class->get_description = cally_stage_get_description;
|
|
class->initialize = cally_stage_real_initialize;
|
|
class->ref_state_set = cally_stage_ref_state_set;
|
|
|
|
g_type_class_add_private (gobject_class, sizeof (CallyStagePrivate));
|
|
|
|
cally_stage_signals [ACTIVATE] =
|
|
g_signal_new ("activate",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
0, /* default signal handler */
|
|
NULL, NULL,
|
|
g_cclosure_marshal_VOID__VOID,
|
|
G_TYPE_NONE, 0);
|
|
cally_stage_signals [CREATE] =
|
|
g_signal_new ("create",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
0, /* default signal handler */
|
|
NULL, NULL,
|
|
g_cclosure_marshal_VOID__VOID,
|
|
G_TYPE_NONE, 0);
|
|
cally_stage_signals [DEACTIVATE] =
|
|
g_signal_new ("deactivate",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
0, /* default signal handler */
|
|
NULL, NULL,
|
|
g_cclosure_marshal_VOID__VOID,
|
|
G_TYPE_NONE, 0);
|
|
cally_stage_signals [DESTROY] =
|
|
g_signal_new ("destroy",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
0, /* default signal handler */
|
|
NULL, NULL,
|
|
g_cclosure_marshal_VOID__VOID,
|
|
G_TYPE_NONE, 0);
|
|
}
|
|
|
|
static void
|
|
cally_stage_init (CallyStage *cally_stage)
|
|
{
|
|
CallyStagePrivate *priv = CALLY_STAGE_GET_PRIVATE (cally_stage);
|
|
|
|
cally_stage->priv = priv;
|
|
|
|
priv->active = FALSE;
|
|
}
|
|
|
|
AtkObject*
|
|
cally_stage_new (ClutterActor *actor)
|
|
{
|
|
GObject *object = NULL;
|
|
AtkObject *accessible = NULL;
|
|
|
|
g_return_val_if_fail (CLUTTER_IS_STAGE (actor), NULL);
|
|
|
|
object = g_object_new (CALLY_TYPE_STAGE, NULL);
|
|
|
|
accessible = ATK_OBJECT (object);
|
|
atk_object_initialize (accessible, actor);
|
|
|
|
return accessible;
|
|
}
|
|
|
|
/* AtkObject.h */
|
|
static G_CONST_RETURN gchar *
|
|
cally_stage_get_name (AtkObject *obj)
|
|
{
|
|
G_CONST_RETURN gchar *name = NULL;
|
|
|
|
g_return_val_if_fail (CALLY_IS_STAGE (obj), NULL);
|
|
|
|
/* parent name */
|
|
name = ATK_OBJECT_CLASS (cally_stage_parent_class)->get_name (obj);
|
|
|
|
if (name == NULL)
|
|
name = CALLY_STAGE_DEFAULT_NAME;
|
|
|
|
return name;
|
|
}
|
|
|
|
static G_CONST_RETURN gchar *
|
|
cally_stage_get_description (AtkObject *obj)
|
|
{
|
|
G_CONST_RETURN gchar *description = NULL;
|
|
|
|
g_return_val_if_fail (CALLY_IS_STAGE (obj), NULL);
|
|
|
|
/* parent description */
|
|
description = ATK_OBJECT_CLASS (cally_stage_parent_class)->get_description (obj);
|
|
|
|
if (description == NULL)
|
|
description = CALLY_STAGE_DEFAULT_DESCRIPTION;
|
|
|
|
return description;
|
|
}
|
|
|
|
static void
|
|
cally_stage_real_initialize (AtkObject *obj,
|
|
gpointer data)
|
|
{
|
|
ClutterStage *stage = NULL;
|
|
|
|
g_return_if_fail (CALLY_IS_STAGE (obj));
|
|
|
|
ATK_OBJECT_CLASS (cally_stage_parent_class)->initialize (obj, data);
|
|
|
|
stage = CLUTTER_STAGE (CALLY_GET_CLUTTER_ACTOR (obj));
|
|
|
|
g_signal_connect (stage, "activate", G_CALLBACK (cally_stage_activate_cb), obj);
|
|
g_signal_connect (stage, "deactivate", G_CALLBACK (cally_stage_deactivate_cb), obj);
|
|
|
|
obj->role = ATK_ROLE_CANVAS;
|
|
}
|
|
|
|
static AtkStateSet*
|
|
cally_stage_ref_state_set (AtkObject *obj)
|
|
{
|
|
CallyStage *cally_stage = NULL;
|
|
AtkStateSet *state_set = NULL;
|
|
ClutterStage *stage = NULL;
|
|
|
|
g_return_val_if_fail (CALLY_IS_STAGE (obj), NULL);
|
|
cally_stage = CALLY_STAGE (obj);
|
|
|
|
state_set = ATK_OBJECT_CLASS (cally_stage_parent_class)->ref_state_set (obj);
|
|
stage = CLUTTER_STAGE (CALLY_GET_CLUTTER_ACTOR (cally_stage));
|
|
|
|
if (stage == NULL)
|
|
return state_set;
|
|
|
|
if (cally_stage->priv->active)
|
|
atk_state_set_add_state (state_set, ATK_STATE_ACTIVE);
|
|
|
|
return state_set;
|
|
}
|
|
|
|
/* Auxiliar */
|
|
static void
|
|
cally_stage_activate_cb (ClutterStage *stage,
|
|
gpointer data)
|
|
{
|
|
CallyStage *cally_stage = NULL;
|
|
|
|
g_return_if_fail (CALLY_IS_STAGE (data));
|
|
|
|
cally_stage = CALLY_STAGE (data);
|
|
|
|
cally_stage->priv->active = TRUE;
|
|
|
|
atk_object_notify_state_change (ATK_OBJECT (cally_stage),
|
|
ATK_STATE_ACTIVE, TRUE);
|
|
|
|
g_signal_emit (cally_stage, cally_stage_signals [ACTIVATE], 0);
|
|
}
|
|
|
|
static void
|
|
cally_stage_deactivate_cb (ClutterStage *stage,
|
|
gpointer data)
|
|
{
|
|
CallyStage *cally_stage = NULL;
|
|
|
|
g_return_if_fail (CALLY_IS_STAGE (data));
|
|
|
|
cally_stage = CALLY_STAGE (data);
|
|
|
|
cally_stage->priv->active = FALSE;
|
|
|
|
atk_object_notify_state_change (ATK_OBJECT (cally_stage),
|
|
ATK_STATE_ACTIVE, FALSE);
|
|
|
|
g_signal_emit (cally_stage, cally_stage_signals [DEACTIVATE], 0);
|
|
}
|