From ed5640d8b587fbcfed7dd7967f3de04b37a76f26 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:06:44 +0200 Subject: Adding upstream version 4:7.4.7. Signed-off-by: Daniel Baumann --- vcl/unx/gtk3/a11y/atkfactory.cxx | 186 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 186 insertions(+) create mode 100644 vcl/unx/gtk3/a11y/atkfactory.cxx (limited to 'vcl/unx/gtk3/a11y/atkfactory.cxx') diff --git a/vcl/unx/gtk3/a11y/atkfactory.cxx b/vcl/unx/gtk3/a11y/atkfactory.cxx new file mode 100644 index 000000000..2fc407b7b --- /dev/null +++ b/vcl/unx/gtk3/a11y/atkfactory.cxx @@ -0,0 +1,186 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include +#include +#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() +{ + static GType type = 0; + + if (!type) + { + static const GTypeInfo typeInfo = + { + sizeof (AtkNoOpObjectClass), + nullptr, + nullptr, + reinterpret_cast(atk_noop_object_wrapper_class_init), + nullptr, + nullptr, + sizeof (AtkObjectWrapper), + 0, + nullptr, + nullptr + } ; + + type = g_type_register_static (ATK_TYPE_OBJECT, "OOoAtkNoOpObj", &typeInfo, GTypeFlags(0)) ; + } + return type; +} + +static AtkObject* +atk_noop_object_wrapper_new() +{ + AtkObject *accessible; + + accessible = static_cast(g_object_new (atk_noop_object_wrapper_get_type(), nullptr)); + g_return_val_if_fail (accessible != nullptr, nullptr); + + accessible->role = ATK_ROLE_INVALID; + accessible->layer = ATK_LAYER_INVALID; + + return accessible; +} + +/* + * The wrapper factory + */ + +static GType +wrapper_factory_get_accessible_type() +{ + return atk_object_wrapper_get_type(); +} + +static AtkObject* +wrapper_factory_create_accessible( GObject *obj ) +{ + GtkWidget* pEventBox = gtk_widget_get_parent(GTK_WIDGET(obj)); + + // gail_container_real_remove_gtk tries to re-instantiate an accessible + // for a widget that is about to vanish .. + if (!pEventBox) + return atk_noop_object_wrapper_new(); + + GtkWidget* pTopLevelGrid = gtk_widget_get_parent(pEventBox); + if (!pTopLevelGrid) + return atk_noop_object_wrapper_new(); + + GtkWidget* pTopLevel = gtk_widget_get_parent(pTopLevelGrid); + if (!pTopLevel) + return atk_noop_object_wrapper_new(); + + GtkSalFrame* pFrame = GtkSalFrame::getFromWindow(pTopLevel); + g_return_val_if_fail(pFrame != nullptr, atk_noop_object_wrapper_new()); + + vcl::Window* pFrameWindow = pFrame->GetWindow(); + if( pFrameWindow ) + { + vcl::Window* pWindow = pFrameWindow; + + // skip accessible objects already exposed by the frame objects + if( WindowType::BORDERWINDOW == pWindow->GetType() ) + pWindow = pFrameWindow->GetAccessibleChildWindow(0); + + if( pWindow ) + { + uno::Reference< accessibility::XAccessible > xAccessible = pWindow->GetAccessible(); + 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(pTopLevel) ); + + return accessible; + } + } + } + + return atk_noop_object_wrapper_new(); +} + +AtkObject* ooo_fixed_get_accessible(GtkWidget *obj) +{ + return wrapper_factory_create_accessible(G_OBJECT(obj)); +} + +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() +{ + static GType t = 0; + + if (!t) { + static const GTypeInfo tinfo = + { + sizeof (AtkObjectFactoryClass), + nullptr, nullptr, reinterpret_cast(wrapper_factory_class_init), + nullptr, nullptr, sizeof (AtkObjectFactory), 0, nullptr, nullptr + }; + + t = g_type_register_static ( + ATK_TYPE_OBJECT_FACTORY, "OOoAtkObjectWrapperFactory", + &tinfo, GTypeFlags(0)); + } + + return t; +} + +} // extern C + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3