summaryrefslogtreecommitdiffstats
path: root/toolkit/source/controls/accessiblecontrolcontext.cxx
diff options
context:
space:
mode:
Diffstat (limited to 'toolkit/source/controls/accessiblecontrolcontext.cxx')
-rw-r--r--toolkit/source/controls/accessiblecontrolcontext.cxx350
1 files changed, 350 insertions, 0 deletions
diff --git a/toolkit/source/controls/accessiblecontrolcontext.cxx b/toolkit/source/controls/accessiblecontrolcontext.cxx
new file mode 100644
index 000000000..c2d0b46db
--- /dev/null
+++ b/toolkit/source/controls/accessiblecontrolcontext.cxx
@@ -0,0 +1,350 @@
+/* -*- 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 <controls/accessiblecontrolcontext.hxx>
+#include <unotools/accessiblestatesethelper.hxx>
+#include <com/sun/star/awt/XControl.hpp>
+#include <com/sun/star/awt/XWindow.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <vcl/svapp.hxx>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <toolkit/helper/vclunohelper.hxx>
+#include <tools/diagnose_ex.h>
+#include <vcl/window.hxx>
+
+
+namespace toolkit
+{
+
+
+ using ::comphelper::OContextEntryGuard;
+ using namespace ::com::sun::star;
+ using namespace ::com::sun::star::uno;
+ using namespace ::com::sun::star::lang;
+ using namespace ::com::sun::star::beans;
+ using namespace ::com::sun::star::accessibility;
+
+
+ //= OAccessibleControlContext
+
+
+ OAccessibleControlContext::OAccessibleControlContext()
+ {
+ // nothing to do here, we have a late ctor
+ }
+
+
+ OAccessibleControlContext::~OAccessibleControlContext()
+ {
+ ensureDisposed();
+ }
+
+
+ IMPLEMENT_FORWARD_XINTERFACE3( OAccessibleControlContext, OAccessibleControlContext_Base, OAccessibleImplementationAccess, OAccessibleControlContext_IBase )
+ IMPLEMENT_FORWARD_XTYPEPROVIDER3( OAccessibleControlContext, OAccessibleControlContext_Base, OAccessibleImplementationAccess, OAccessibleControlContext_IBase )
+ // (order matters: the first is the class name, the second is the class doing the ref counting)
+
+
+ void OAccessibleControlContext::Init( const Reference< XAccessible >& _rxCreator )
+ {
+ OContextEntryGuard aGuard( this );
+
+ // retrieve the model of the control
+ OSL_ENSURE( !m_xControlModel.is(), "OAccessibleControlContext::Init: already know a control model...!???" );
+
+ Reference< awt::XControl > xControl( _rxCreator, UNO_QUERY );
+ if ( xControl.is() )
+ m_xControlModel.set(xControl->getModel(), css::uno::UNO_QUERY);
+ OSL_ENSURE( m_xControlModel.is(), "OAccessibleControlContext::Init: invalid creator (no control, or control without model!" );
+ if ( !m_xControlModel.is() )
+ throw DisposedException(); // caught by the caller (the create method)
+
+ // start listening at the model
+ startModelListening();
+
+ // announce the XAccessible to our base class
+ OAccessibleControlContext_Base::lateInit( _rxCreator );
+ }
+
+
+ OAccessibleControlContext* OAccessibleControlContext::create( const Reference< XAccessible >& _rxCreator )
+ {
+ OAccessibleControlContext* pNew = nullptr;
+ try
+ {
+ pNew = new OAccessibleControlContext;
+ pNew->Init( _rxCreator );
+ }
+ catch( const Exception& )
+ {
+ OSL_FAIL( "OAccessibleControlContext::create: caught an exception from the late ctor!" );
+ }
+ return pNew;
+ }
+
+
+ void OAccessibleControlContext::startModelListening( )
+ {
+ Reference< XComponent > xModelComp( m_xControlModel, UNO_QUERY );
+ OSL_ENSURE( xModelComp.is(), "OAccessibleControlContext::startModelListening: invalid model!" );
+ if ( xModelComp.is() )
+ xModelComp->addEventListener( this );
+ }
+
+
+ void OAccessibleControlContext::stopModelListening( )
+ {
+ Reference< XComponent > xModelComp( m_xControlModel, UNO_QUERY );
+ OSL_ENSURE( xModelComp.is(), "OAccessibleControlContext::stopModelListening: invalid model!" );
+ if ( xModelComp.is() )
+ xModelComp->removeEventListener( this );
+ }
+
+
+ sal_Int32 SAL_CALL OAccessibleControlContext::getAccessibleChildCount( )
+ {
+ // we do not have children
+ return 0;
+ }
+
+
+ Reference< XAccessible > SAL_CALL OAccessibleControlContext::getAccessibleChild( sal_Int32 )
+ {
+ // we do not have children
+ throw IndexOutOfBoundsException();
+ }
+
+
+ Reference< XAccessible > SAL_CALL OAccessibleControlContext::getAccessibleParent( )
+ {
+ return Reference< XAccessible >();
+ }
+
+
+ sal_Int16 SAL_CALL OAccessibleControlContext::getAccessibleRole( )
+ {
+ return AccessibleRole::SHAPE;
+ }
+
+
+ OUString SAL_CALL OAccessibleControlContext::getAccessibleDescription( )
+ {
+ OContextEntryGuard aGuard( this );
+ return getModelStringProperty( "HelpText" );
+ }
+
+
+ OUString SAL_CALL OAccessibleControlContext::getAccessibleName( )
+ {
+ OContextEntryGuard aGuard( this );
+ return getModelStringProperty( "Name" );
+ }
+
+
+ Reference< XAccessibleRelationSet > SAL_CALL OAccessibleControlContext::getAccessibleRelationSet( )
+ {
+ return nullptr;
+ }
+
+
+ Reference< XAccessibleStateSet > SAL_CALL OAccessibleControlContext::getAccessibleStateSet( )
+ {
+ ::osl::MutexGuard aGuard( GetMutex() );
+ // no OContextEntryGuard here, as we do not want to throw an exception in case we're not alive anymore
+
+ ::utl::AccessibleStateSetHelper* pStateSet = nullptr;
+ if ( isAlive() )
+ {
+ // no own states, only the ones which are foreign controlled
+ pStateSet = new ::utl::AccessibleStateSetHelper( 0 );
+ }
+ else
+ { // only the DEFUNC state if we're already disposed
+ pStateSet = new ::utl::AccessibleStateSetHelper;
+ pStateSet->AddState( AccessibleStateType::DEFUNC );
+ }
+ return pStateSet;
+ }
+
+
+ void SAL_CALL OAccessibleControlContext::disposing( const EventObject& _rSource )
+ {
+ OSL_ENSURE( Reference< XPropertySet >( _rSource.Source, UNO_QUERY ).get() == m_xControlModel.get(),
+ "OAccessibleControlContext::disposing: where did this come from?" );
+
+ stopModelListening( );
+ m_xControlModel.clear();
+ m_xModelPropsInfo.clear();
+
+ OAccessibleControlContext_Base::disposing();
+ }
+
+
+ OUString OAccessibleControlContext::getModelStringProperty( const char* _pPropertyName )
+ {
+ OUString sReturn;
+ try
+ {
+ if ( !m_xModelPropsInfo.is() && m_xControlModel.is() )
+ m_xModelPropsInfo = m_xControlModel->getPropertySetInfo();
+
+ OUString sPropertyName( OUString::createFromAscii( _pPropertyName ) );
+ if ( m_xModelPropsInfo.is() && m_xModelPropsInfo->hasPropertyByName( sPropertyName ) )
+ m_xControlModel->getPropertyValue( sPropertyName ) >>= sReturn;
+ }
+ catch( const Exception& )
+ {
+ TOOLS_WARN_EXCEPTION( "toolkit", "OAccessibleControlContext::getModelStringProperty" );
+ }
+ return sReturn;
+ }
+
+
+ VclPtr< vcl::Window > OAccessibleControlContext::implGetWindow( Reference< awt::XWindow >* _pxUNOWindow ) const
+ {
+ Reference< awt::XControl > xControl( getAccessibleCreator(), UNO_QUERY );
+ Reference< awt::XWindow > xWindow;
+ if ( xControl.is() )
+ xWindow.set(xControl->getPeer(), css::uno::UNO_QUERY);
+
+ VclPtr< vcl::Window > pWindow = xWindow.is() ? VCLUnoHelper::GetWindow( xWindow ) : VclPtr< vcl::Window >();
+
+ if ( _pxUNOWindow )
+ *_pxUNOWindow = xWindow;
+
+ return pWindow;
+ }
+
+
+ awt::Rectangle OAccessibleControlContext::implGetBounds( )
+ {
+ SolarMutexGuard aSolarGuard;
+ // want to do some VCL stuff here ...
+ OContextEntryGuard aGuard( this );
+
+ OSL_FAIL( "OAccessibleControlContext::implGetBounds: performance issue: forced to calc the size myself!" );
+ // In design mode (and this is what this class is for), the surrounding shape (if any) should handle this call
+ // The problem is that in design mode, our size may not be correct (in the drawing layer, controls are
+ // positioned/sized for painting only), and that calculation of our position is expensive
+
+ // what we know (or can obtain from somewhere):
+ // * the PosSize of our peer, relative to its parent window
+ // * the parent window which the PosSize is relative to
+ // * our foreign controlled accessible parent
+ // from this info, we can determine the position of our peer relative to the foreign parent
+
+ // our control
+ Reference< awt::XWindow > xWindow;
+ VclPtr< vcl::Window > pVCLWindow = implGetWindow( &xWindow );
+
+ awt::Rectangle aBounds( 0, 0, 0, 0 );
+ if ( xWindow.is() )
+ {
+ // ugly, but... though the XWindow has a getPosSize, it is impossible to determine the
+ // parent which this position/size is relative to. This means we must tunnel UNO and ask the
+ // implementation
+ vcl::Window* pVCLParent = pVCLWindow ? pVCLWindow->GetParent() : nullptr;
+
+ // the relative location of the window
+ ::Point aWindowRelativePos( 0, 0);
+ if ( pVCLWindow )
+ aWindowRelativePos = pVCLWindow->GetPosPixel();
+
+ // the screen position of the "window parent" of the control
+ ::Point aVCLParentScreenPos( 0, 0 );
+ if ( pVCLParent )
+ aVCLParentScreenPos = pVCLParent->GetPosPixel();
+
+ // now the size of the control
+ aBounds = xWindow->getPosSize();
+
+ // correct the pos
+ aBounds.X = aWindowRelativePos.X() + aVCLParentScreenPos.X();
+ aBounds.Y = aWindowRelativePos.Y() + aVCLParentScreenPos.Y();
+ }
+
+ return aBounds;
+ }
+
+
+ Reference< XAccessible > SAL_CALL OAccessibleControlContext::getAccessibleAtPoint( const awt::Point& /* _rPoint */ )
+ {
+ // no children at all
+ return nullptr;
+ }
+
+
+ void SAL_CALL OAccessibleControlContext::grabFocus( )
+ {
+ OSL_FAIL( "OAccessibleControlContext::grabFocus: !isFocusTraversable, but grabFocus!" );
+ }
+
+
+ sal_Int32 SAL_CALL OAccessibleControlContext::getForeground( )
+ {
+ SolarMutexGuard aSolarGuard;
+ // want to do some VCL stuff here ...
+ OContextEntryGuard aGuard( this );
+
+ VclPtr< vcl::Window > pWindow = implGetWindow();
+ Color nColor;
+ if ( pWindow )
+ {
+ if ( pWindow->IsControlForeground() )
+ nColor = pWindow->GetControlForeground();
+ else
+ {
+ vcl::Font aFont;
+ if ( pWindow->IsControlFont() )
+ aFont = pWindow->GetControlFont();
+ else
+ aFont = pWindow->GetFont();
+ nColor = aFont.GetColor();
+ }
+ }
+ return sal_Int32(nColor);
+ }
+
+
+ sal_Int32 SAL_CALL OAccessibleControlContext::getBackground( )
+ {
+ SolarMutexGuard aSolarGuard;
+ // want to do some VCL stuff here ...
+ OContextEntryGuard aGuard( this );
+
+ VclPtr< vcl::Window > pWindow = implGetWindow();
+ Color nColor;
+ if ( pWindow )
+ {
+ if ( pWindow->IsControlBackground() )
+ nColor = pWindow->GetControlBackground();
+ else
+ nColor = pWindow->GetBackground().GetColor();
+ }
+
+ return sal_Int32(nColor);
+ }
+
+
+} //namespace toolkit
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */