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/*
* Copyright (C) 2011 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Rodrigo Moya <rodrigo.moya@canonical.com>
*/
#include <glib/gi18n.h>
#include "panel-indicator-accessible.h"
#include "panel-root-accessible.h"
#include "panel-service.h"
G_DEFINE_TYPE(PanelRootAccessible, panel_root_accessible, ATK_TYPE_OBJECT)
#define GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), PANEL_TYPE_ROOT_ACCESSIBLE, PanelRootAccessiblePrivate))
/* AtkObject methods */
static void panel_root_accessible_initialize (AtkObject *accessible, gpointer data);
static gint panel_root_accessible_get_n_children (AtkObject *accessible);
static AtkObject *panel_root_accessible_ref_child (AtkObject *accessible, gint i);
static AtkObject *panel_root_accessible_get_parent (AtkObject *accessible);
struct _PanelRootAccessiblePrivate
{
PanelService *service;
GSList *a11y_children;
};
static void
panel_root_accessible_finalize (GObject *object)
{
PanelRootAccessible *root = PANEL_ROOT_ACCESSIBLE (object);
if ((root->priv != NULL) && (root->priv->a11y_children != NULL))
{
g_slist_free_full(root->priv->a11y_children, g_object_unref);
root->priv->a11y_children = NULL;
}
}
static void
panel_root_accessible_class_init (PanelRootAccessibleClass *klass)
{
GObjectClass *object_class;
AtkObjectClass *atk_class;
/* GObject */
object_class = G_OBJECT_CLASS (klass);
object_class->finalize = panel_root_accessible_finalize;
/* AtkObject */
atk_class = ATK_OBJECT_CLASS (klass);
atk_class->initialize = panel_root_accessible_initialize;
atk_class->get_n_children = panel_root_accessible_get_n_children;
atk_class->ref_child = panel_root_accessible_ref_child;
atk_class->get_parent = panel_root_accessible_get_parent;
g_type_class_add_private (object_class, sizeof (PanelRootAccessiblePrivate));
}
static void
panel_root_accessible_init (PanelRootAccessible *root)
{
root->priv = GET_PRIVATE (root);
root->priv->a11y_children = NULL;
root->priv->service = panel_service_get_default ();
}
AtkObject *
panel_root_accessible_new (void)
{
AtkObject *accessible;
accessible = ATK_OBJECT (g_object_new (PANEL_TYPE_ROOT_ACCESSIBLE, NULL));
atk_object_initialize (accessible, NULL);
return accessible;
}
static void
on_indicator_removed (gpointer *data, GObject *removed_indicator)
{
PanelRootAccessible *root = data[0];
AtkObject *child = data[1];
g_return_if_fail (PANEL_IS_ROOT_ACCESSIBLE (root));
g_return_if_fail (ATK_IS_OBJECT (child));
gint index = g_slist_index (root->priv->a11y_children, child);
if (index >= 0)
{
root->priv->a11y_children = g_slist_remove (root->priv->a11y_children, child);
g_signal_emit_by_name (root, "children-changed::remove", index, child);
g_object_unref (child);
}
g_free (data);
}
/* Implementation of AtkObject methods */
static void
panel_root_accessible_initialize (AtkObject *accessible, gpointer data)
{
gint n_children, i;
PanelRootAccessible *root = PANEL_ROOT_ACCESSIBLE (accessible);
g_return_if_fail (PANEL_IS_ROOT_ACCESSIBLE (accessible));
ATK_OBJECT_CLASS (panel_root_accessible_parent_class)->initialize (accessible, data);
accessible->role = ATK_ROLE_APPLICATION;
atk_object_set_name (accessible, g_get_prgname ());
atk_object_set_parent (accessible, NULL);
/* Retrieve all indicators and create their accessible objects */
n_children = panel_service_get_n_indicators (root->priv->service);
for (i = 0; i < n_children; i++)
{
IndicatorObject *indicator;
indicator = panel_service_get_indicator_nth (root->priv->service, i);
if (INDICATOR_IS_OBJECT (indicator))
{
AtkObject *child;
gpointer *weak_data;
child = panel_indicator_accessible_new (indicator);
/* FIXME: use proper signals once we support dynamic adding/removing
* of indicators */
weak_data = g_new0 (gpointer, 2);
weak_data[0] = root;
weak_data[1] = child;
g_object_weak_ref (G_OBJECT (indicator),
(GWeakNotify) on_indicator_removed, weak_data);
atk_object_set_parent (child, accessible);
root->priv->a11y_children = g_slist_append (root->priv->a11y_children, child);
}
}
}
static gint
panel_root_accessible_get_n_children (AtkObject *accessible)
{
PanelRootAccessible *root = PANEL_ROOT_ACCESSIBLE (accessible);
g_return_val_if_fail (PANEL_IS_ROOT_ACCESSIBLE (accessible), 0);
return g_slist_length (root->priv->a11y_children);
}
static AtkObject *
panel_root_accessible_ref_child (AtkObject *accessible, gint i)
{
PanelRootAccessible *root = PANEL_ROOT_ACCESSIBLE (accessible);
g_return_val_if_fail (PANEL_IS_ROOT_ACCESSIBLE (accessible), NULL);
return g_object_ref (g_slist_nth_data (root->priv->a11y_children, i));
}
static AtkObject *
panel_root_accessible_get_parent (AtkObject *accessible)
{
g_return_val_if_fail (PANEL_IS_ROOT_ACCESSIBLE (accessible), NULL);
return NULL;
}
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