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/* -*- 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 <config_feature_desktop.h>
#include <vcl/svtaccessiblefactory.hxx>
#include <vcl/accessiblefactory.hxx>
#include <tools/svlibrary.h>
#include <tools/debug.hxx>
#include <osl/module.h>
#include <osl/diagnose.h>
#include <rtl/ref.hxx>
namespace vcl
{
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::awt;
using namespace ::com::sun::star::accessibility;
namespace
{
#ifndef DISABLE_DYNLOADING
static oslModule s_hAccessibleImplementationModule = nullptr;
#endif
#if HAVE_FEATURE_DESKTOP
static GetSvtAccessibilityComponentFactory s_pAccessibleFactoryFunc = nullptr;
#endif
static ::rtl::Reference< IAccessibleFactory > s_pFactory;
//= AccessibleDummyFactory
class AccessibleDummyFactory:
public IAccessibleFactory
{
public:
AccessibleDummyFactory();
AccessibleDummyFactory(const AccessibleDummyFactory&) = delete;
AccessibleDummyFactory& operator=(const AccessibleDummyFactory&) = delete;
protected:
virtual ~AccessibleDummyFactory() override;
public:
// IAccessibleFactory
virtual vcl::IAccessibleTabListBox*
createAccessibleTabListBox(
const css::uno::Reference< css::accessibility::XAccessible >& /*rxParent*/,
SvHeaderTabListBox& /*rBox*/
) const override
{
return nullptr;
}
virtual css::uno::Reference< css::accessibility::XAccessible >
createAccessibleTreeListBox(
SvTreeListBox& /*_rListBox*/,
const css::uno::Reference< css::accessibility::XAccessible >& /*_xParent*/
) const override
{
return nullptr;
}
virtual vcl::IAccessibleBrowseBox*
createAccessibleBrowseBox(
const css::uno::Reference< css::accessibility::XAccessible >& /*_rxParent*/,
vcl::IAccessibleTableProvider& /*_rBrowseBox*/
) const override
{
return nullptr;
}
virtual table::IAccessibleTableControl*
createAccessibleTableControl(
const css::uno::Reference< css::accessibility::XAccessible >& /*_rxParent*/,
table::IAccessibleTable& /*_rTable*/
) const override
{
return nullptr;
}
virtual css::uno::Reference< css::accessibility::XAccessible >
createAccessibleIconChoiceCtrl(
SvtIconChoiceCtrl& /*_rIconCtrl*/,
const css::uno::Reference< css::accessibility::XAccessible >& /*_xParent*/
) const override
{
return nullptr;
}
virtual css::uno::Reference< css::accessibility::XAccessible >
createAccessibleTabBar(
TabBar& /*_rTabBar*/
) const override
{
return nullptr;
}
virtual css::uno::Reference< css::accessibility::XAccessibleContext >
createAccessibleTextWindowContext(
VCLXWindow* /*pVclXWindow*/, TextEngine& /*rEngine*/, TextView& /*rView*/
) const override
{
return nullptr;
}
virtual css::uno::Reference< css::accessibility::XAccessible >
createAccessibleBrowseBoxHeaderBar(
const css::uno::Reference< css::accessibility::XAccessible >& /*rxParent*/,
vcl::IAccessibleTableProvider& /*_rOwningTable*/,
vcl::AccessibleBrowseBoxObjType /*_eObjType*/
) const override
{
return nullptr;
}
virtual css::uno::Reference< css::accessibility::XAccessible >
createAccessibleBrowseBoxTableCell(
const css::uno::Reference< css::accessibility::XAccessible >& /*_rxParent*/,
vcl::IAccessibleTableProvider& /*_rBrowseBox*/,
const css::uno::Reference< css::awt::XWindow >& /*_xFocusWindow*/,
sal_Int32 /*_nRowId*/,
sal_uInt16 /*_nColId*/,
sal_Int32 /*_nOffset*/
) const override
{
return nullptr;
}
virtual css::uno::Reference< css::accessibility::XAccessible >
createAccessibleBrowseBoxHeaderCell(
sal_Int32 /*_nColumnRowId*/,
const css::uno::Reference< css::accessibility::XAccessible >& /*rxParent*/,
vcl::IAccessibleTableProvider& /*_rBrowseBox*/,
const css::uno::Reference< css::awt::XWindow >& /*_xFocusWindow*/,
vcl::AccessibleBrowseBoxObjType /*_eObjType*/
) const override
{
return nullptr;
}
virtual css::uno::Reference< css::accessibility::XAccessible >
createAccessibleCheckBoxCell(
const css::uno::Reference< css::accessibility::XAccessible >& /*_rxParent*/,
vcl::IAccessibleTableProvider& /*_rBrowseBox*/,
const css::uno::Reference< css::awt::XWindow >& /*_xFocusWindow*/,
sal_Int32 /*_nRowPos*/,
sal_uInt16 /*_nColPos*/,
const TriState& /*_eState*/,
bool /*_bIsTriState*/
) const override
{
return nullptr;
}
virtual css::uno::Reference< css::accessibility::XAccessible >
createEditBrowseBoxTableCellAccess(
const css::uno::Reference< css::accessibility::XAccessible >& /*_rxParent*/,
const css::uno::Reference< css::accessibility::XAccessible >& /*_rxControlAccessible*/,
const css::uno::Reference< css::awt::XWindow >& /*_rxFocusWindow*/,
vcl::IAccessibleTableProvider& /*_rBrowseBox*/,
sal_Int32 /*_nRowPos*/,
sal_uInt16 /*_nColPos*/
) const override
{
return nullptr;
}
};
AccessibleDummyFactory::AccessibleDummyFactory()
{
}
AccessibleDummyFactory::~AccessibleDummyFactory()
{
}
}
//= AccessibleFactoryAccess
AccessibleFactoryAccess::AccessibleFactoryAccess()
:m_bInitialized( false )
{
}
#if HAVE_FEATURE_DESKTOP
#ifndef DISABLE_DYNLOADING
extern "C" { static void thisModule() {} }
#else
extern "C" void* getSvtAccessibilityComponentFactory();
#endif
#endif // HAVE_FEATURE_DESKTOP
void AccessibleFactoryAccess::ensureInitialized()
{
if ( m_bInitialized )
return;
::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
#if HAVE_FEATURE_DESKTOP
// load the library implementing the factory
if (!s_pFactory)
{
#ifndef DISABLE_DYNLOADING
const OUString sModuleName( SVLIBRARY( "acc" ));
s_hAccessibleImplementationModule = osl_loadModuleRelative( &thisModule, sModuleName.pData, 0 );
if ( s_hAccessibleImplementationModule != nullptr )
{
const OUString sFactoryCreationFunc( "getSvtAccessibilityComponentFactory" );
s_pAccessibleFactoryFunc = reinterpret_cast<GetSvtAccessibilityComponentFactory>(
osl_getFunctionSymbol( s_hAccessibleImplementationModule, sFactoryCreationFunc.pData ));
}
OSL_ENSURE( s_pAccessibleFactoryFunc, "ac_registerClient: could not load the library, or not retrieve the needed symbol!" );
#else
s_pAccessibleFactoryFunc = getSvtAccessibilityComponentFactory;
#endif // DISABLE_DYNLOADING
// get a factory instance
if ( s_pAccessibleFactoryFunc )
{
IAccessibleFactory* pFactory = static_cast< IAccessibleFactory* >( (*s_pAccessibleFactoryFunc)() );
if ( pFactory )
{
s_pFactory = pFactory;
pFactory->release();
}
}
}
#endif // HAVE_FEATURE_DESKTOP
if (!s_pFactory)
// the attempt to load the lib, or to create the factory, failed
// -> fall back to a dummy factory
s_pFactory = new AccessibleDummyFactory;
m_bInitialized = true;
}
IAccessibleFactory& AccessibleFactoryAccess::getFactory()
{
ensureInitialized();
DBG_ASSERT( s_pFactory.is(), "AccessibleFactoryAccess::getFactory: at least a dummy factory should have been created!" );
return *s_pFactory;
}
} // namespace vcl
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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