Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 358 insertions, 0 deletions

diff --git a/toolkit/source/controls/accessiblecontrolcontext.cxx b/toolkit/source/controls/accessiblecontrolcontext.cxx
new file mode 100644
index 000000000..219b4a610
--- /dev/null
+++ b/toolkit/source/controls/accessiblecontrolcontext.cxx
@@ -0,0 +1,358 @@
+/* -*- 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();
+    }
+
+
+    // (order matters: the first is the class name, the second is the class doing the ref counting)
+    IMPLEMENT_FORWARD_XINTERFACE3( OAccessibleControlContext, OAccessibleControlContext_Base, OAccessibleImplementationAccess, OAccessibleControlContext_IBase )
+    css::uno::Sequence< css::uno::Type > SAL_CALL OAccessibleControlContext::getTypes()
+    {
+        return ::comphelper::concatSequences(
+            OAccessibleControlContext_Base::getTypes(),
+            OAccessibleImplementationAccess::getTypes(),
+            OAccessibleControlContext_IBase::getTypes()
+        );
+    }
+    IMPLEMENT_GET_IMPLEMENTATION_ID( OAccessibleControlContext )
+
+
+    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 );
+    }
+
+
+    rtl::Reference<OAccessibleControlContext> OAccessibleControlContext::create( const Reference< XAccessible >& _rxCreator )
+    {
+        rtl::Reference<OAccessibleControlContext> pNew;
+        try
+        {
+            pNew = new OAccessibleControlContext;
+            pNew->Init( _rxCreator );
+        }
+        catch( const Exception& )
+        {
+            TOOLS_WARN_EXCEPTION( "toolkit", "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
+
+        rtl::Reference<::utl::AccessibleStateSetHelper> pStateSet;
+        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;
+    }
+
+
+    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);
+
+        vcl::Window* pWindow = xWindow.is() ? VCLUnoHelper::GetWindow( xWindow ) : nullptr;
+
+        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: */