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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* vim:expandtab:shiftwidth=8:tabstop=8:
*/
/* Evolution Accessibility: ea-jump-button.c
*
* Copyright (C) 2003 Ximian, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Yang Wu <yang.wu@sun.com> Sun Microsystem Inc., 2003
*
*/
#include "ea-jump-button.h"
#include "ea-calendar-helpers.h"
#include "ea-week-view.h"
#include "e-week-view.h"
#include <libgnomecanvas/gnome-canvas.h>
static void ea_jump_button_class_init (EaJumpButtonClass *klass);
static G_CONST_RETURN gchar* ea_jump_button_get_name (AtkObject *accessible);
static G_CONST_RETURN gchar* ea_jump_button_get_description (AtkObject *accessible);
/* action interface */
static void atk_action_interface_init (AtkActionIface *iface);
static gboolean jump_button_do_action (AtkAction *action,
gint i);
static gint jump_button_get_n_actions (AtkAction *action);
static G_CONST_RETURN gchar* jump_button_get_keybinding (AtkAction *action,
gint i);
static gpointer parent_class = NULL;
GType
ea_jump_button_get_type (void)
{
static GType type = 0;
AtkObjectFactory *factory;
GTypeQuery query;
GType derived_atk_type;
if (!type) {
static GTypeInfo tinfo = {
sizeof (EaJumpButtonClass),
(GBaseInitFunc) NULL, /* base init */
(GBaseFinalizeFunc) NULL, /* base finalize */
(GClassInitFunc) ea_jump_button_class_init, /* class init */
(GClassFinalizeFunc) NULL, /* class finalize */
NULL, /* class data */
sizeof (EaJumpButton), /* instance size */
0, /* nb preallocs */
(GInstanceInitFunc) NULL, /* instance init */
NULL /* value table */
};
static const GInterfaceInfo atk_action_info =
{
(GInterfaceInitFunc) atk_action_interface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
/*
* Figure out the size of the class and instance
* we are run-time deriving from (atk object for GNOME_TYPE_CANVAS_ITEM, in this case)
*/
factory = atk_registry_get_factory (atk_get_default_registry (),
GNOME_TYPE_CANVAS_ITEM);
derived_atk_type = atk_object_factory_get_accessible_type (factory);
g_type_query (derived_atk_type, &query);
tinfo.class_size = query.class_size;
tinfo.instance_size = query.instance_size;
/* we inherit the component and other interfaces from GNOME_TYPE_CANVAS_ITEM */
type = g_type_register_static (derived_atk_type,
"EaJumpButton", &tinfo, 0);
g_type_add_interface_static (type, ATK_TYPE_ACTION,
&atk_action_info);
}
return type;
}
static void
ea_jump_button_class_init (EaJumpButtonClass *klass)
{
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
class->get_name = ea_jump_button_get_name;
class->get_description = ea_jump_button_get_description;
}
AtkObject*
ea_jump_button_new (GObject *obj)
{
AtkObject *atk_obj = NULL;
GObject *target_obj;
g_return_val_if_fail (GNOME_IS_CANVAS_ITEM (obj), NULL);
target_obj = obj;
atk_obj = g_object_get_data (target_obj, "accessible-object");
if (!atk_obj) {
static AtkRole event_role = ATK_ROLE_INVALID;
atk_obj = ATK_OBJECT (g_object_new (EA_TYPE_JUMP_BUTTON,
NULL));
atk_object_initialize (atk_obj, target_obj);
if (event_role == ATK_ROLE_INVALID)
event_role = atk_role_register ("Jump Button");
atk_obj->role = event_role;
}
/* the registered factory for GNOME_TYPE_CANVAS_ITEM is cannot create a EaJumpbutton,
* we should save the EaJumpbutton object in it.
*/
g_object_set_data (obj, "accessible-object", atk_obj);
return atk_obj;
}
static G_CONST_RETURN gchar*
ea_jump_button_get_name (AtkObject *accessible)
{
g_return_val_if_fail (EA_IS_JUMP_BUTTON (accessible), NULL);
if (accessible->name)
return accessible->name;
return "Jump";
}
static G_CONST_RETURN gchar*
ea_jump_button_get_description (AtkObject *accessible)
{
if (accessible->description)
return accessible->description;
return "Click here, you can find more events.";
}
static void
atk_action_interface_init (AtkActionIface *iface)
{
g_return_if_fail (iface != NULL);
iface->do_action = jump_button_do_action;
iface->get_n_actions = jump_button_get_n_actions;
iface->get_keybinding = jump_button_get_keybinding;
}
static gboolean
jump_button_do_action (AtkAction *action,
gint i)
{
gboolean return_value = TRUE;
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
GnomeCanvasItem *item;
ECalendarView *cal_view;
EWeekView *week_view;
atk_gobj = ATK_GOBJECT_ACCESSIBLE (action);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return FALSE;
item = GNOME_CANVAS_ITEM (g_obj);
cal_view = ea_calendar_helpers_get_cal_view_from (GNOME_CANVAS_ITEM (item));
week_view = E_WEEK_VIEW (cal_view);
switch (i)
{
case 0:
e_week_view_jump_to_button_item (week_view, GNOME_CANVAS_ITEM (item));
break;
default:
return_value = FALSE;
break;
}
return return_value;
}
static gint
jump_button_get_n_actions (AtkAction *action)
{
return 1;
}
static G_CONST_RETURN gchar*
jump_button_get_keybinding (AtkAction *action,
gint i)
{
gchar *return_value = NULL;
switch (i)
{
case 0:
{
return_value = "space or enter";
break;
}
default:
break;
}
return return_value;
}
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