diff options
Diffstat (limited to 'vcl/unx/gtk/a11y/atkfactory.cxx')
| -rw-r--r-- | vcl/unx/gtk/a11y/atkfactory.cxx | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/vcl/unx/gtk/a11y/atkfactory.cxx b/vcl/unx/gtk/a11y/atkfactory.cxx new file mode 100644 index 000000000000..d2574f616539 --- /dev/null +++ b/vcl/unx/gtk/a11y/atkfactory.cxx @@ -0,0 +1,183 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_vcl.hxx" + +#include <plugins/gtk/gtkframe.hxx> +#include <vcl/window.hxx> +#include "atkwrapper.hxx" +#include "atkfactory.hxx" +#include "atkregistry.hxx" + +using namespace ::com::sun::star; + +extern "C" { + +/* + * Instances of this dummy object class are returned whenever we have to + * create an AtkObject, but can't touch the OOo object anymore since it + * is already disposed. + */ + +static AtkStateSet * +noop_wrapper_ref_state_set( AtkObject * ) +{ + AtkStateSet *state_set = atk_state_set_new(); + atk_state_set_add_state( state_set, ATK_STATE_DEFUNCT ); + return state_set; +} + +static void +atk_noop_object_wrapper_class_init(AtkNoOpObjectClass *klass) +{ + AtkObjectClass *atk_class = ATK_OBJECT_CLASS( klass ); + atk_class->ref_state_set = noop_wrapper_ref_state_set; +} + +static GType +atk_noop_object_wrapper_get_type(void) +{ + static GType type = 0; + + if (!type) + { + static const GTypeInfo typeInfo = + { + sizeof (AtkNoOpObjectClass), + (GBaseInitFunc) NULL, + (GBaseFinalizeFunc) NULL, + (GClassInitFunc) atk_noop_object_wrapper_class_init, + (GClassFinalizeFunc) NULL, + NULL, + sizeof (AtkObjectWrapper), + 0, + (GInstanceInitFunc) NULL, + NULL + } ; + + type = g_type_register_static (ATK_TYPE_OBJECT, "OOoAtkNoOpObj", &typeInfo, (GTypeFlags)0) ; + } + return type; +} + +AtkObject* +atk_noop_object_wrapper_new() +{ + AtkObject *accessible; + + accessible = (AtkObject *) g_object_new (atk_noop_object_wrapper_get_type(), NULL); + g_return_val_if_fail (accessible != NULL, NULL); + + accessible->role = ATK_ROLE_INVALID; + accessible->layer = ATK_LAYER_INVALID; + + return accessible; +} + +/* + * The wrapper factory + */ + +static GType +wrapper_factory_get_accessible_type(void) +{ + return atk_object_wrapper_get_type(); +} + +static AtkObject* +wrapper_factory_create_accessible( GObject *obj ) +{ + GtkWidget* parent_widget = gtk_widget_get_parent( GTK_WIDGET( obj ) ); + + // gail_container_real_remove_gtk tries to re-instanciate an accessible + // for a widget that is about to vanish .. + if( ! parent_widget ) + return atk_noop_object_wrapper_new(); + + GtkSalFrame* pFrame = GtkSalFrame::getFromWindow( GTK_WINDOW( parent_widget ) ); + g_return_val_if_fail( pFrame != NULL, NULL ); + + Window* pFrameWindow = pFrame->GetWindow(); + if( pFrameWindow ) + { + Window* pWindow = pFrameWindow; + + // skip accessible objects already exposed by the frame objects + if( WINDOW_BORDERWINDOW == pWindow->GetType() ) + pWindow = pFrameWindow->GetAccessibleChildWindow(0); + + if( pWindow ) + { + uno::Reference< accessibility::XAccessible > xAccessible = pWindow->GetAccessible(true); + if( xAccessible.is() ) + { + AtkObject *accessible = ooo_wrapper_registry_get( xAccessible ); + + if( accessible ) + g_object_ref( G_OBJECT(accessible) ); + else + accessible = atk_object_wrapper_new( xAccessible, gtk_widget_get_accessible(parent_widget) ); + + return accessible; + } + } + } + + return NULL; +} + +static void +wrapper_factory_class_init( AtkObjectFactoryClass *klass ) +{ + klass->create_accessible = wrapper_factory_create_accessible; + klass->get_accessible_type = wrapper_factory_get_accessible_type; +} + +GType +wrapper_factory_get_type (void) +{ + static GType t = 0; + + if (!t) { + static const GTypeInfo tinfo = + { + sizeof (AtkObjectFactoryClass), + NULL, NULL, (GClassInitFunc) wrapper_factory_class_init, + NULL, NULL, sizeof (AtkObjectFactory), 0, NULL, NULL + }; + + t = g_type_register_static ( + ATK_TYPE_OBJECT_FACTORY, "OOoAtkObjectWrapperFactory", + &tinfo, (GTypeFlags) 0); + } + + return t; +} + +} // extern C + |