/* vim: set sw=2 et: */
/*
* Copyright 2002 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, see .
*/
#include
#include
#include
#include
#include
#include
#include "pager-accessible.h"
#include "pager-accessible-factory.h"
#include "workspace-accessible.h"
#include "private.h"
typedef struct _WnckPagerAccessiblePrivate WnckPagerAccessiblePrivate;
struct _WnckPagerAccessiblePrivate
{
GSList *children;
};
static const char* wnck_pager_accessible_get_name (AtkObject *obj);
static const char* wnck_pager_accessible_get_description (AtkObject *obj);
static int wnck_pager_accessible_get_n_children (AtkObject *obj);
static AtkObject* wnck_pager_accessible_ref_child (AtkObject *obj,
int i);
static void atk_selection_interface_init (AtkSelectionIface *iface);
static gboolean wnck_pager_add_selection (AtkSelection *selection,
int i);
static gboolean wnck_pager_is_child_selected (AtkSelection *selection,
int i);
static AtkObject* wnck_pager_ref_selection (AtkSelection *selection,
int i);
static int wnck_pager_selection_count (AtkSelection *selection);
static void wnck_pager_accessible_update_workspace (AtkObject *aobj_ws,
WnckPager *pager,
int i);
static void wnck_pager_accessible_finalize (GObject *gobject);
G_DEFINE_TYPE_WITH_CODE (WnckPagerAccessible,
wnck_pager_accessible,
GTK_TYPE_ACCESSIBLE,
G_IMPLEMENT_INTERFACE (ATK_TYPE_SELECTION,
atk_selection_interface_init)
G_ADD_PRIVATE (WnckPagerAccessible))
static void
atk_selection_interface_init (AtkSelectionIface *iface)
{
g_return_if_fail (iface != NULL);
iface->add_selection = wnck_pager_add_selection;
iface->ref_selection = wnck_pager_ref_selection;
iface->get_selection_count = wnck_pager_selection_count;
iface->is_child_selected = wnck_pager_is_child_selected;
}
static void
wnck_pager_accessible_class_init (WnckPagerAccessibleClass *klass)
{
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
GObjectClass *obj_class = G_OBJECT_CLASS (klass);
class->get_name = wnck_pager_accessible_get_name;
class->get_description = wnck_pager_accessible_get_description;
class->get_n_children = wnck_pager_accessible_get_n_children;
class->ref_child = wnck_pager_accessible_ref_child;
obj_class->finalize = wnck_pager_accessible_finalize;
}
static void
wnck_pager_accessible_init (WnckPagerAccessible *accessible)
{
}
static gboolean
wnck_pager_add_selection (AtkSelection *selection,
int i)
{
WnckPager *pager;
WnckWorkspace *wspace;
GtkWidget *widget;
int n_spaces;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
{
/*
*State is defunct
*/
return FALSE;
}
pager = WNCK_PAGER (widget);
n_spaces = _wnck_pager_get_n_workspaces (pager);
if (i < 0 || i >= n_spaces)
return FALSE;
/*
* Activate the following worksapce as current workspace
*/
wspace = _wnck_pager_get_workspace (pager, i);
/* FIXME: Is gtk_get_current_event_time() good enough here? I have no idea */
_wnck_pager_activate_workspace (wspace, gtk_get_current_event_time ());
return TRUE;
}
/*
* Returns the AtkObject of the selected WorkSpace
*/
static AtkObject*
wnck_pager_ref_selection (AtkSelection *selection,
int i)
{
WnckPager *pager;
GtkWidget *widget;
WnckWorkspace *active_wspace;
AtkObject *accessible;
int wsno;
g_return_val_if_fail (i == 0, NULL);
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
{
/*
* State is defunct
*/
return NULL;
}
pager = WNCK_PAGER (widget);
active_wspace = WNCK_WORKSPACE (_wnck_pager_get_active_workspace (pager));
wsno = wnck_workspace_get_number (active_wspace);
accessible = ATK_OBJECT (wnck_pager_accessible_ref_child (ATK_OBJECT (selection), wsno));
return accessible;
}
/*
* Returns the no.of child selected, it should be either 1 or 0
* b'coz only one child can be selected at a time.
*/
static int
wnck_pager_selection_count (AtkSelection *selection)
{
GtkWidget *widget;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
{
/*
* State is defunct
*/
return 0;
}
else
{
return 1;
}
}
/*
*Checks whether the WorkSpace specified by i is selected,
*and returns TRUE on selection.
*/
static gboolean
wnck_pager_is_child_selected (AtkSelection *selection,
int i)
{
WnckPager *pager;
GtkWidget *widget;
WnckWorkspace *active_wspace;
int wsno;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
{
/*
* State is defunct
*/
return FALSE;
}
pager = WNCK_PAGER (widget);
active_wspace = _wnck_pager_get_active_workspace (pager);
wsno = wnck_workspace_get_number (active_wspace);
return (wsno == i);
}
AtkObject*
wnck_pager_accessible_new (GtkWidget *widget)
{
GObject *object;
AtkObject *aobj_pager;
GtkAccessible *gtk_accessible;
object = g_object_new (WNCK_PAGER_TYPE_ACCESSIBLE, NULL);
aobj_pager = ATK_OBJECT (object);
gtk_accessible = GTK_ACCESSIBLE (aobj_pager);
gtk_accessible_set_widget (gtk_accessible, widget);
atk_object_initialize (aobj_pager, widget);
aobj_pager->role = ATK_ROLE_PANEL;
return aobj_pager;
}
static void
wnck_pager_accessible_finalize (GObject *gobject)
{
WnckPagerAccessible *accessible;
WnckPagerAccessiblePrivate *priv;
accessible = WNCK_PAGER_ACCESSIBLE (gobject);
priv = wnck_pager_accessible_get_instance_private (accessible);
if (priv)
{
if (priv->children)
{
g_slist_free_full (priv->children, g_object_unref);
priv->children = NULL;
}
}
G_OBJECT_CLASS (wnck_pager_accessible_parent_class)->finalize (gobject);
}
static const char*
wnck_pager_accessible_get_name (AtkObject *obj)
{
g_return_val_if_fail (WNCK_PAGER_IS_ACCESSIBLE (obj), NULL);
if (obj->name == NULL)
obj->name = g_strdup (_("Workspace Switcher"));
return obj->name;
}
static const char*
wnck_pager_accessible_get_description (AtkObject *obj)
{
g_return_val_if_fail (WNCK_PAGER_IS_ACCESSIBLE (obj), NULL);
if (obj->description == NULL)
obj->description = g_strdup (_("Tool to switch between workspaces"));
return obj->description;
}
/*
* Number of workspaces is returned as n_children
*/
static int
wnck_pager_accessible_get_n_children (AtkObject* obj)
{
GtkAccessible *accessible;
GtkWidget *widget;
WnckPager *pager;
g_return_val_if_fail (WNCK_PAGER_IS_ACCESSIBLE (obj), 0);
accessible = GTK_ACCESSIBLE (obj);
widget = gtk_accessible_get_widget (accessible);
if (widget == NULL)
/* State is defunct */
return 0;
pager = WNCK_PAGER (widget);
return _wnck_pager_get_n_workspaces (pager);
}
/*
* Will return appropriate static AtkObject for the workspaces
*/
static AtkObject*
wnck_pager_accessible_ref_child (AtkObject *obj,
int i)
{
GtkAccessible *accessible;
GtkWidget *widget;
WnckPager *pager;
int n_spaces = 0;
int len;
WnckPagerAccessible *pager_accessible;
WnckPagerAccessiblePrivate *priv;
AtkObject *ret;
g_return_val_if_fail (WNCK_PAGER_IS_ACCESSIBLE (obj), NULL);
g_return_val_if_fail (ATK_IS_OBJECT (obj), NULL);
accessible = GTK_ACCESSIBLE (obj);
widget = gtk_accessible_get_widget (accessible);
if (widget == NULL)
/* State is defunct */
return NULL;
pager = WNCK_PAGER (widget);
pager_accessible = WNCK_PAGER_ACCESSIBLE (obj);
priv = wnck_pager_accessible_get_instance_private (pager_accessible);
len = g_slist_length (priv->children);
n_spaces = _wnck_pager_get_n_workspaces (pager);
if (i < 0 || i >= n_spaces)
return NULL;
/* We are really inefficient about this due to all the appending,
* and never shrink the list either.
*/
while (n_spaces > len)
{
AtkRegistry *default_registry;
AtkObjectFactory *factory;
WnckWorkspace *wspace;
WnckWorkspaceAccessible *space_accessible;
default_registry = atk_get_default_registry ();
factory = atk_registry_get_factory (default_registry,
WNCK_TYPE_WORKSPACE);
wspace = _wnck_pager_get_workspace (pager, len);
space_accessible = WNCK_WORKSPACE_ACCESSIBLE (atk_object_factory_create_accessible (factory,
G_OBJECT (wspace)));
atk_object_set_parent (ATK_OBJECT (space_accessible), obj);
priv->children = g_slist_append (priv->children, space_accessible);
++len;
}
ret = g_slist_nth_data (priv->children, i);
g_object_ref (G_OBJECT (ret));
wnck_pager_accessible_update_workspace (ret, pager, i);
return ret;
}
static void
wnck_pager_accessible_update_workspace (AtkObject *aobj_ws,
WnckPager *pager,
int i)
{
g_free (aobj_ws->name);
aobj_ws->name = g_strdup (_wnck_pager_get_workspace_name (pager, i));
g_free (aobj_ws->description);
aobj_ws->description = g_strdup_printf (_("Click this to switch to workspace %s"),
aobj_ws->name);
aobj_ws->role = ATK_ROLE_UNKNOWN;
}