bbe70a7e3d
Change-Id: I11d8f487df0c9e707be6a2aa98a32135643552f7 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/146110 Tested-by: Jenkins Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
343 lines
11 KiB
C++
343 lines
11 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <controls/accessiblecontrolcontext.hxx>
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#include <com/sun/star/awt/XControl.hpp>
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#include <com/sun/star/awt/XWindow.hpp>
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#include <com/sun/star/beans/XPropertySet.hpp>
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#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
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#include <vcl/svapp.hxx>
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#include <com/sun/star/accessibility/AccessibleStateType.hpp>
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#include <com/sun/star/accessibility/AccessibleRole.hpp>
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#include <toolkit/helper/vclunohelper.hxx>
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#include <comphelper/accessiblecontexthelper.hxx>
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#include <comphelper/diagnose_ex.hxx>
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#include <vcl/window.hxx>
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namespace toolkit
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{
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using ::comphelper::OContextEntryGuard;
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using namespace ::com::sun::star;
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using namespace ::com::sun::star::uno;
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using namespace ::com::sun::star::lang;
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using namespace ::com::sun::star::beans;
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using namespace ::com::sun::star::accessibility;
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//= OAccessibleControlContext
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OAccessibleControlContext::OAccessibleControlContext()
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{
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// nothing to do here, we have a late ctor
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}
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OAccessibleControlContext::~OAccessibleControlContext()
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{
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ensureDisposed();
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}
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void OAccessibleControlContext::Init( const Reference< XAccessible >& _rxCreator )
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{
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OContextEntryGuard aGuard( this );
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// retrieve the model of the control
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OSL_ENSURE( !m_xControlModel.is(), "OAccessibleControlContext::Init: already know a control model...!???" );
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Reference< awt::XControl > xControl( _rxCreator, UNO_QUERY );
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if ( xControl.is() )
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m_xControlModel.set(xControl->getModel(), css::uno::UNO_QUERY);
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OSL_ENSURE( m_xControlModel.is(), "OAccessibleControlContext::Init: invalid creator (no control, or control without model!" );
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if ( !m_xControlModel.is() )
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throw DisposedException(); // caught by the caller (the create method)
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// start listening at the model
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startModelListening();
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// announce the XAccessible to our base class
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OAccessibleControlContext_Base::lateInit( _rxCreator );
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}
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rtl::Reference<OAccessibleControlContext> OAccessibleControlContext::create( const Reference< XAccessible >& _rxCreator )
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{
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rtl::Reference<OAccessibleControlContext> pNew;
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try
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{
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pNew = new OAccessibleControlContext;
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pNew->Init( _rxCreator );
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}
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catch( const Exception& )
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{
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TOOLS_WARN_EXCEPTION( "toolkit", "OAccessibleControlContext::create: caught an exception from the late ctor!" );
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}
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return pNew;
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}
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void OAccessibleControlContext::startModelListening( )
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{
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Reference< XComponent > xModelComp( m_xControlModel, UNO_QUERY );
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OSL_ENSURE( xModelComp.is(), "OAccessibleControlContext::startModelListening: invalid model!" );
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if ( xModelComp.is() )
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xModelComp->addEventListener( this );
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}
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void OAccessibleControlContext::stopModelListening( )
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{
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Reference< XComponent > xModelComp( m_xControlModel, UNO_QUERY );
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OSL_ENSURE( xModelComp.is(), "OAccessibleControlContext::stopModelListening: invalid model!" );
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if ( xModelComp.is() )
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xModelComp->removeEventListener( this );
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}
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sal_Int64 SAL_CALL OAccessibleControlContext::getAccessibleChildCount( )
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{
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// we do not have children
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return 0;
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}
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Reference< XAccessible > SAL_CALL OAccessibleControlContext::getAccessibleChild( sal_Int64 )
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{
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// we do not have children
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throw IndexOutOfBoundsException();
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}
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Reference< XAccessible > SAL_CALL OAccessibleControlContext::getAccessibleParent( )
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{
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return Reference< XAccessible >();
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}
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sal_Int16 SAL_CALL OAccessibleControlContext::getAccessibleRole( )
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{
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return AccessibleRole::SHAPE;
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}
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OUString SAL_CALL OAccessibleControlContext::getAccessibleDescription( )
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{
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OContextEntryGuard aGuard( this );
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return getModelStringProperty( "HelpText" );
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}
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OUString SAL_CALL OAccessibleControlContext::getAccessibleName( )
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{
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OContextEntryGuard aGuard( this );
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return getModelStringProperty( "Name" );
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}
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Reference< XAccessibleRelationSet > SAL_CALL OAccessibleControlContext::getAccessibleRelationSet( )
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{
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return nullptr;
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}
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sal_Int64 SAL_CALL OAccessibleControlContext::getAccessibleStateSet( )
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{
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::osl::MutexGuard aGuard( GetMutex() );
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// no OContextEntryGuard here, as we do not want to throw an exception in case we're not alive anymore
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sal_Int64 nStateSet = 0;
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if ( isAlive() )
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{
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// no own states, only the ones which are foreign controlled
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}
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else
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{ // only the DEFUNC state if we're already disposed
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nStateSet |= AccessibleStateType::DEFUNC;
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}
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return nStateSet;
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}
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void SAL_CALL OAccessibleControlContext::disposing( const EventObject& _rSource )
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{
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OSL_ENSURE( Reference< XPropertySet >( _rSource.Source, UNO_QUERY ).get() == m_xControlModel.get(),
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"OAccessibleControlContext::disposing: where did this come from?" );
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stopModelListening( );
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m_xControlModel.clear();
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m_xModelPropsInfo.clear();
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OAccessibleControlContext_Base::disposing();
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}
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OUString OAccessibleControlContext::getModelStringProperty( const char* _pPropertyName )
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{
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OUString sReturn;
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try
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{
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if ( !m_xModelPropsInfo.is() && m_xControlModel.is() )
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m_xModelPropsInfo = m_xControlModel->getPropertySetInfo();
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OUString sPropertyName( OUString::createFromAscii( _pPropertyName ) );
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if ( m_xModelPropsInfo.is() && m_xModelPropsInfo->hasPropertyByName( sPropertyName ) )
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m_xControlModel->getPropertyValue( sPropertyName ) >>= sReturn;
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}
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catch( const Exception& )
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{
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TOOLS_WARN_EXCEPTION( "toolkit", "OAccessibleControlContext::getModelStringProperty" );
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}
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return sReturn;
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}
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vcl::Window* OAccessibleControlContext::implGetWindow( Reference< awt::XWindow >* _pxUNOWindow ) const
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{
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Reference< awt::XControl > xControl( getAccessibleCreator(), UNO_QUERY );
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Reference< awt::XWindow > xWindow;
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if ( xControl.is() )
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xWindow.set(xControl->getPeer(), css::uno::UNO_QUERY);
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vcl::Window* pWindow = xWindow.is() ? VCLUnoHelper::GetWindow( xWindow ) : nullptr;
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if ( _pxUNOWindow )
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*_pxUNOWindow = xWindow;
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return pWindow;
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}
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awt::Rectangle OAccessibleControlContext::implGetBounds( )
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{
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SolarMutexGuard aSolarGuard;
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// want to do some VCL stuff here ...
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OContextEntryGuard aGuard( this );
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OSL_FAIL( "OAccessibleControlContext::implGetBounds: performance issue: forced to calc the size myself!" );
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// In design mode (and this is what this class is for), the surrounding shape (if any) should handle this call
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// The problem is that in design mode, our size may not be correct (in the drawing layer, controls are
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// positioned/sized for painting only), and that calculation of our position is expensive
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// what we know (or can obtain from somewhere):
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// * the PosSize of our peer, relative to its parent window
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// * the parent window which the PosSize is relative to
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// * our foreign controlled accessible parent
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// from this info, we can determine the position of our peer relative to the foreign parent
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// our control
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Reference< awt::XWindow > xWindow;
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VclPtr< vcl::Window > pVCLWindow = implGetWindow( &xWindow );
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awt::Rectangle aBounds( 0, 0, 0, 0 );
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if ( xWindow.is() )
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{
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// ugly, but... though the XWindow has a getPosSize, it is impossible to determine the
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// parent which this position/size is relative to. This means we must tunnel UNO and ask the
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// implementation
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vcl::Window* pVCLParent = pVCLWindow ? pVCLWindow->GetParent() : nullptr;
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// the relative location of the window
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::Point aWindowRelativePos( 0, 0);
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if ( pVCLWindow )
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aWindowRelativePos = pVCLWindow->GetPosPixel();
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// the screen position of the "window parent" of the control
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::Point aVCLParentScreenPos( 0, 0 );
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if ( pVCLParent )
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aVCLParentScreenPos = pVCLParent->GetPosPixel();
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// now the size of the control
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aBounds = xWindow->getPosSize();
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// correct the pos
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aBounds.X = aWindowRelativePos.X() + aVCLParentScreenPos.X();
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aBounds.Y = aWindowRelativePos.Y() + aVCLParentScreenPos.Y();
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}
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return aBounds;
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}
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Reference< XAccessible > SAL_CALL OAccessibleControlContext::getAccessibleAtPoint( const awt::Point& /* _rPoint */ )
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{
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// no children at all
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return nullptr;
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}
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void SAL_CALL OAccessibleControlContext::grabFocus( )
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{
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OSL_FAIL( "OAccessibleControlContext::grabFocus: !isFocusTraversable, but grabFocus!" );
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}
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sal_Int32 SAL_CALL OAccessibleControlContext::getForeground( )
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{
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SolarMutexGuard aSolarGuard;
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// want to do some VCL stuff here ...
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OContextEntryGuard aGuard( this );
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VclPtr< vcl::Window > pWindow = implGetWindow();
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Color nColor;
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if ( pWindow )
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{
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if ( pWindow->IsControlForeground() )
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nColor = pWindow->GetControlForeground();
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else
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{
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vcl::Font aFont;
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if ( pWindow->IsControlFont() )
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aFont = pWindow->GetControlFont();
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else
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aFont = pWindow->GetFont();
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nColor = aFont.GetColor();
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}
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}
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return sal_Int32(nColor);
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}
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sal_Int32 SAL_CALL OAccessibleControlContext::getBackground( )
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{
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SolarMutexGuard aSolarGuard;
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// want to do some VCL stuff here ...
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OContextEntryGuard aGuard( this );
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VclPtr< vcl::Window > pWindow = implGetWindow();
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Color nColor;
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if ( pWindow )
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{
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if ( pWindow->IsControlBackground() )
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nColor = pWindow->GetControlBackground();
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else
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nColor = pWindow->GetBackground().GetColor();
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}
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return sal_Int32(nColor);
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}
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} //namespace toolkit
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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