xref: /aoo4110/main/accessibility/source/extended/accessibletablistboxtable.cxx (revision b1cdbd2c)

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 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_accessibility.hxx"

#ifndef ACCESSIBILITY_EXT_ACCESSIBLETABLISTBOXTABLE_HXX_
#include "accessibility/extended/accessibletablistboxtable.hxx"
#endif
#include "accessibility/extended/AccessibleBrowseBoxTableCell.hxx"
#include "accessibility/extended/AccessibleBrowseBoxCheckBoxCell.hxx"
#include <svtools/svtabbx.hxx>
#include <com/sun/star/accessibility/AccessibleEventId.hpp>

#ifndef _SVTOOLS_ACCESSIBILEBROWSEBOXTABLECELL_HXX
#include "accessibility/extended/AccessibleBrowseBoxTableCell.hxx"
#endif
//........................................................................
namespace accessibility
{
//........................................................................

	// class TLBSolarGuard ---------------------------------------------------------

	/** Aquire the solar mutex. */
	class TLBSolarGuard : public ::vos::OGuard
	{
	public:
    	inline TLBSolarGuard() : ::vos::OGuard( Application::GetSolarMutex() ) {}
	};

	// class AccessibleTabListBoxTable ---------------------------------------------

	using namespace ::com::sun::star::accessibility;
	using namespace ::com::sun::star::uno;
	using namespace ::com::sun::star::lang;
	using namespace ::com::sun::star;

	DBG_NAME(AccessibleTabListBoxTable)

	// -----------------------------------------------------------------------------
	// Ctor() and Dtor()
	// -----------------------------------------------------------------------------
	AccessibleTabListBoxTable::AccessibleTabListBoxTable( const Reference< XAccessible >& rxParent, SvHeaderTabListBox& rBox ) :

		AccessibleBrowseBoxTable( rxParent, rBox ),

		m_pTabListBox	( &rBox )

	{
		DBG_CTOR( AccessibleTabListBoxTable, NULL );

		m_pTabListBox->AddEventListener( LINK( this, AccessibleTabListBoxTable, WindowEventListener ) );
	}
	// -----------------------------------------------------------------------------
	AccessibleTabListBoxTable::~AccessibleTabListBoxTable()
	{
		DBG_DTOR( AccessibleTabListBoxTable, NULL );

		if ( isAlive() )
		{
			m_pTabListBox = NULL;

			// increment ref count to prevent double call of Dtor
        	osl_incrementInterlockedCount( &m_refCount );
        	dispose();
		}
	}
	// -----------------------------------------------------------------------------
	void AccessibleTabListBoxTable::ProcessWindowEvent( const VclWindowEvent& rVclWindowEvent )
	{
    	if ( isAlive() )
		{
            sal_uLong nEventId = rVclWindowEvent.GetId();
            switch ( nEventId )
            {
				case  VCLEVENT_OBJECT_DYING :
				{
					m_pTabListBox->RemoveEventListener( LINK( this, AccessibleTabListBoxTable, WindowEventListener ) );
					m_pTabListBox = NULL;
					break;
				}

                case VCLEVENT_CONTROL_GETFOCUS :
                case VCLEVENT_CONTROL_LOSEFOCUS :
                {
                    uno::Any aOldValue, aNewValue;
                    if ( VCLEVENT_CONTROL_GETFOCUS == nEventId )
                        aNewValue <<= AccessibleStateType::FOCUSED;
                    else
                        aOldValue <<= AccessibleStateType::FOCUSED;
                    commitEvent( AccessibleEventId::STATE_CHANGED, aNewValue, aOldValue );
                    break;
                }

                case VCLEVENT_LISTBOX_SELECT :
				{
                    // First send an event that tells the listeners of a
                    // modified selection.  The active descendant event is
                    // send after that so that the receiving AT has time to
                    // read the text or name of the active child.
					commitEvent( AccessibleEventId::SELECTION_CHANGED, Any(), Any() );
					if ( m_pTabListBox && m_pTabListBox->HasFocus() )
					{
                        SvLBoxEntry* pEntry = static_cast< SvLBoxEntry* >( rVclWindowEvent.GetData() );
						if ( pEntry )
						{
							sal_Int32 nRow = m_pTabListBox->GetEntryPos( pEntry );
                            sal_uInt16 nCol = m_pTabListBox->GetCurrColumn();
                            Reference< XAccessible > xChild =
                                m_pTabListBox->CreateAccessibleCell( nRow, nCol );
							uno::Any aOldValue, aNewValue;

                            if ( m_pTabListBox->IsTransientChildrenDisabled() )
                            {
                                aNewValue <<= AccessibleStateType::FOCUSED;
                                TriState eState = STATE_DONTKNOW;
                                if ( m_pTabListBox->IsCellCheckBox( nRow, nCol, eState ) )
                                {
                                    AccessibleCheckBoxCell* pCell =
                                        static_cast< AccessibleCheckBoxCell* >( xChild.get() );
                                    pCell->commitEvent( AccessibleEventId::STATE_CHANGED, aNewValue, aOldValue );
                                }
                                else
                                {
                                    AccessibleBrowseBoxTableCell* pCell =
                                        static_cast< AccessibleBrowseBoxTableCell* >( xChild.get() );
                                    pCell->commitEvent( AccessibleEventId::STATE_CHANGED, aNewValue, aOldValue );
                                }
                            }
                            else
                            {
                                aNewValue <<= xChild;
                                commitEvent( AccessibleEventId::ACTIVE_DESCENDANT_CHANGED, aNewValue, aOldValue );
                            }
						}
					}
					break;
				}
				case VCLEVENT_WINDOW_GETFOCUS :
				{
					uno::Any aOldValue, aNewValue;
					aNewValue <<= AccessibleStateType::FOCUSED;
					commitEvent( AccessibleEventId::STATE_CHANGED, aNewValue, aOldValue );
					break;

				}
				case VCLEVENT_WINDOW_LOSEFOCUS :
				{
					uno::Any aOldValue, aNewValue;
					aOldValue <<= AccessibleStateType::FOCUSED;
					commitEvent( AccessibleEventId::STATE_CHANGED, aNewValue, aOldValue );
					break;
				}
				case VCLEVENT_LISTBOX_TREESELECT:
					{
						SvLBoxEntry* pEntry = static_cast< SvLBoxEntry* >( rVclWindowEvent.GetData() );
						if (pEntry)
						{
							sal_Int32 nRow = m_pTabListBox->GetEntryPos( pEntry );
							Reference< XAccessible > xChild = m_pTabListBox->CreateAccessibleCell( nRow, m_pTabListBox->GetCurrColumn() );
							TriState eState = STATE_DONTKNOW;
							if ( m_pTabListBox->IsCellCheckBox( nRow, m_pTabListBox->GetCurrColumn(), eState ) )
                            {
                                AccessibleCheckBoxCell* pCell = static_cast< AccessibleCheckBoxCell* >( xChild.get() );
                                pCell->commitEvent( AccessibleEventId::SELECTION_CHANGED, Any(), Any() );
                            }
                            else
                            {
                                AccessibleBrowseBoxTableCell* pCell = static_cast< AccessibleBrowseBoxTableCell* >( xChild.get() );
                                pCell->commitEvent( AccessibleEventId::SELECTION_CHANGED, Any(), Any() );
                            }
						}
					}
					break;
				case VCLEVENT_LISTBOX_TREEFOCUS:
					{
						if ( m_pTabListBox && m_pTabListBox->HasFocus() )
						{
							uno::Any aOldValue, aNewValue;
							SvLBoxEntry* pEntry = static_cast< SvLBoxEntry* >( rVclWindowEvent.GetData() );
							if ( pEntry )
							{
								sal_Int32 nRow = m_pTabListBox->GetEntryPos( pEntry );
								m_xCurChild = m_pTabListBox->CreateAccessibleCell( nRow, m_pTabListBox->GetCurrColumn() );
								aNewValue <<= m_xCurChild;
								commitEvent( AccessibleEventId::ACTIVE_DESCENDANT_CHANGED, aNewValue ,aOldValue);
							}
							else
							{
								aNewValue <<= AccessibleStateType::FOCUSED;
								commitEvent( AccessibleEventId::STATE_CHANGED, aNewValue ,aOldValue);
							}
						}
					}
					break;

                case VCLEVENT_CHECKBOX_TOGGLE :
                {
                    if ( m_pTabListBox && m_pTabListBox->HasFocus() )
                    {
                        SvLBoxEntry* pEntry = static_cast< SvLBoxEntry* >( rVclWindowEvent.GetData() );
                        if ( pEntry )
                        {
                            sal_Int32 nRow = m_pTabListBox->GetEntryPos( pEntry );
                            sal_uInt16 nCol = m_pTabListBox->GetCurrColumn();
                            TriState eState = STATE_DONTKNOW;
                            if ( m_pTabListBox->IsCellCheckBox( nRow, nCol, eState ) )
                            {
                                Reference< XAccessible > xChild =
                                    m_pTabListBox->CreateAccessibleCell( nRow, nCol );
                                AccessibleCheckBoxCell* pCell =
                                    static_cast< AccessibleCheckBoxCell* >( xChild.get() );
                                pCell->SetChecked( m_pTabListBox->IsItemChecked( pEntry, nCol ) );
                            }
                        }
                    }
                    break;
                }

                case VCLEVENT_TABLECELL_NAMECHANGED :
                {
                    if ( m_pTabListBox->IsTransientChildrenDisabled() )
                    {
                        commitEvent( AccessibleEventId::SELECTION_CHANGED, Any(), Any() );
                        TabListBoxEventData* pData = static_cast< TabListBoxEventData* >( rVclWindowEvent.GetData() );
                        SvLBoxEntry* pEntry = pData != NULL ? pData->m_pEntry : NULL;
                        if ( pEntry )
                        {
                            sal_Int32 nRow = m_pTabListBox->GetEntryPos( pEntry );
                            sal_uInt16 nCol = pData->m_nColumn;
                            Reference< XAccessible > xChild =
                                m_pTabListBox->CreateAccessibleCell( nRow, nCol );
                            uno::Any aOldValue, aNewValue;
                            aOldValue <<= ::rtl::OUString( pData->m_sOldText );
                            ::rtl::OUString sNewText( m_pTabListBox->GetCellText( nRow, nCol ) );
                            aNewValue <<= sNewText;
                            TriState eState = STATE_DONTKNOW;

                            if ( m_pTabListBox->IsCellCheckBox( nRow, nCol, eState ) )
                            {
                                AccessibleCheckBoxCell* pCell =
                                    static_cast< AccessibleCheckBoxCell* >( xChild.get() );
                                pCell->commitEvent( AccessibleEventId::NAME_CHANGED, aOldValue, aNewValue );
                            }
                            else
                            {
                                AccessibleBrowseBoxTableCell* pCell =
                                    static_cast< AccessibleBrowseBoxTableCell* >( xChild.get() );
                                pCell->nameChanged( sNewText, pData->m_sOldText );
                            }
                        }
                    }
                    break;
                }
			}
		}
	}
	// -----------------------------------------------------------------------------
	IMPL_LINK( AccessibleTabListBoxTable, WindowEventListener, VclSimpleEvent*, pEvent )
	{
    	DBG_ASSERT( pEvent && pEvent->ISA( VclWindowEvent ), "Unknown WindowEvent!" );
    	if ( pEvent && pEvent->ISA( VclWindowEvent ) )
    	{
        	DBG_ASSERT( ( (VclWindowEvent*)pEvent )->GetWindow() && m_pTabListBox, "no event window" );
        	ProcessWindowEvent( *(VclWindowEvent*)pEvent );
    	}
    	return 0;
	}
	// helpers --------------------------------------------------------------------

	void AccessibleTabListBoxTable::ensureValidIndex( sal_Int32 _nIndex ) const
	        SAL_THROW( ( IndexOutOfBoundsException ) )
	{
	    if ( ( _nIndex < 0 ) || ( _nIndex >= implGetCellCount() ) )
	        throw IndexOutOfBoundsException();
	}

	sal_Bool AccessibleTabListBoxTable::implIsRowSelected( sal_Int32 _nRow ) const
	{
	    return m_pTabListBox ? m_pTabListBox->IsSelected( m_pTabListBox->GetEntry( _nRow ) ) : sal_False;
	}

	void AccessibleTabListBoxTable::implSelectRow( sal_Int32 _nRow, sal_Bool _bSelect )
	{
		if ( m_pTabListBox )
		    m_pTabListBox->Select( m_pTabListBox->GetEntry( _nRow ), _bSelect );
	}

	sal_Int32 AccessibleTabListBoxTable::implGetRowCount() const
	{
	    return m_pTabListBox ? m_pTabListBox->GetEntryCount() : 0;
	}

	sal_Int32 AccessibleTabListBoxTable::implGetColumnCount() const
	{
	    return m_pTabListBox ? m_pTabListBox->GetColumnCount() : 0;
	}

	sal_Int32 AccessibleTabListBoxTable::implGetSelRowCount() const
	{
	    return m_pTabListBox ? m_pTabListBox->GetSelectionCount() : 0;
	}

	sal_Int32 AccessibleTabListBoxTable::implGetSelRow( sal_Int32 nSelRow ) const
	{
		if ( m_pTabListBox )
		{
		    sal_Int32 nRow = 0;
			SvLBoxEntry* pEntry = m_pTabListBox->FirstSelected();
			while ( pEntry )
			{
				++nRow;
				if ( nRow == nSelRow )
					return m_pTabListBox->GetEntryPos( pEntry );
				pEntry = m_pTabListBox->NextSelected( pEntry );
			}
		}

		return 0;
	}
	// -----------------------------------------------------------------------------
	// XInterface & XTypeProvider
	// -----------------------------------------------------------------------------
	IMPLEMENT_FORWARD_XINTERFACE2(AccessibleTabListBoxTable, AccessibleBrowseBoxTable, AccessibleTabListBoxTableImplHelper)
	IMPLEMENT_FORWARD_XTYPEPROVIDER2(AccessibleTabListBoxTable, AccessibleBrowseBoxTable, AccessibleTabListBoxTableImplHelper)
	// -----------------------------------------------------------------------------
	// XServiceInfo
	// -----------------------------------------------------------------------------
	::rtl::OUString AccessibleTabListBoxTable::getImplementationName (void) throw (RuntimeException)
	{
		return ::rtl::OUString::createFromAscii("com.sun.star.comp.svtools.AccessibleTabListBoxTable");
	}
	// -----------------------------------------------------------------------------
	// XAccessibleSelection
	// -----------------------------------------------------------------------------
	void SAL_CALL AccessibleTabListBoxTable::selectAccessibleChild( sal_Int32 nChildIndex ) throw (IndexOutOfBoundsException, RuntimeException)
	{
    	TLBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( getOslMutex() );

		ensureIsAlive();
	    ensureValidIndex( nChildIndex );

		implSelectRow( implGetRow( nChildIndex ), sal_True );
	}
	// -----------------------------------------------------------------------------
	sal_Bool SAL_CALL AccessibleTabListBoxTable::isAccessibleChildSelected( sal_Int32 nChildIndex ) throw (IndexOutOfBoundsException, RuntimeException)
	{
    	TLBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( getOslMutex() );

		ensureIsAlive();
	    ensureValidIndex( nChildIndex );

	    return implIsRowSelected( implGetRow( nChildIndex ) );
	}
	// -----------------------------------------------------------------------------
	void SAL_CALL AccessibleTabListBoxTable::clearAccessibleSelection(  ) throw (RuntimeException)
	{
    	TLBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( getOslMutex() );

		ensureIsAlive();

		m_pTabListBox->SetNoSelection();
	}
	// -----------------------------------------------------------------------------
	void SAL_CALL AccessibleTabListBoxTable::selectAllAccessibleChildren(  ) throw (RuntimeException)
	{
    	TLBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( getOslMutex() );

		ensureIsAlive();

		m_pTabListBox->SelectAll();
	}
	// -----------------------------------------------------------------------------
	sal_Int32 SAL_CALL AccessibleTabListBoxTable::getSelectedAccessibleChildCount(  ) throw (RuntimeException)
	{
    	TLBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( getOslMutex() );

		ensureIsAlive();

	    return implGetColumnCount() * implGetSelRowCount();
	}
	// -----------------------------------------------------------------------------
	Reference< XAccessible > SAL_CALL AccessibleTabListBoxTable::getSelectedAccessibleChild( sal_Int32 nSelectedChildIndex ) throw (IndexOutOfBoundsException, RuntimeException)
	{
    	TLBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( getOslMutex() );

		ensureIsAlive();

	    sal_Int32 nRows = implGetSelRowCount();
	    if ( nRows == 0 )
	        throw IndexOutOfBoundsException();

	    sal_Int32 nRow = implGetSelRow( nSelectedChildIndex % nRows );
	    sal_Int32 nColumn = nSelectedChildIndex / nRows;
	    return getAccessibleCellAt( nRow, nColumn );
	}
	// -----------------------------------------------------------------------------
	void SAL_CALL AccessibleTabListBoxTable::deselectAccessibleChild( sal_Int32 nSelectedChildIndex ) throw (IndexOutOfBoundsException, RuntimeException)
	{
    	TLBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( getOslMutex() );

		ensureIsAlive();
	    ensureValidIndex( nSelectedChildIndex );

		implSelectRow( implGetRow( nSelectedChildIndex ), sal_False );
	}

//........................................................................
}// namespace accessibility
//........................................................................