svtools/source/brwbox/editbrowsebox2.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <svtools/editbrowsebox.hxx>
  21 #include <com/sun/star/accessibility/XAccessible.hpp>
  22 #include <com/sun/star/accessibility/AccessibleEventId.hpp>
  23 #include "editbrowseboximpl.hxx"
  24 #include <comphelper/types.hxx>
  25 #include <toolkit/helper/vclunohelper.hxx>
  26 #include <vcl/accessiblefactory.hxx>
  27 #include <vcl/svapp.hxx>
  28 #include <tools/debug.hxx>
  29 #include <comphelper/diagnose_ex.hxx>
  30
  31 namespace svt
  32 {
  33     using namespace com::sun::star::accessibility;
  34     using namespace com::sun::star::uno;
  35     using namespace ::com::sun::star::accessibility::AccessibleEventId;
  36
  37
  38 Reference< XAccessible > EditBrowseBox::CreateAccessibleCheckBoxCell(sal_Int32 _nRow, sal_uInt16 _nColumnPos,const TriState& eState)
  39 {
  40     Reference< XAccessible > xAccessible( GetAccessible() );
  41     Reference< XAccessibleContext > xAccContext;
  42     if ( xAccessible.is() )
  43         xAccContext = xAccessible->getAccessibleContext();
  44
  45     Reference< XAccessible > xReturn;
  46     if ( xAccContext.is() )
  47     {
  48         xReturn = getAccessibleFactory().createAccessibleCheckBoxCell(
  49             xAccContext->getAccessibleChild( ::vcl::BBINDEX_TABLE ),
  50             *this,
  51             _nRow,
  52             _nColumnPos,
  53             eState,
  54             true
  55         );
  56     }
  57     return xReturn;
  58 }
  59
  60 sal_Int32 EditBrowseBox::GetAccessibleControlCount() const
  61 {
  62     return IsEditing() ? 1 : 0;
  63 }
  64
  65 void EditBrowseBox::implCreateActiveAccessible( )
  66 {
  67     DBG_ASSERT( IsEditing(), "EditBrowseBox::implCreateActiveAccessible: not to be called if we're not editing currently!" );
  68     DBG_ASSERT( !m_aImpl->m_xActiveCell.is(), "EditBrowseBox::implCreateActiveAccessible: not to be called if the old one is still alive!" );
  69
  70     if ( m_aImpl->m_xActiveCell.is() || !IsEditing() )
  71          return;
  72
  73     Reference< XAccessible > xCont = aController->GetWindow().GetAccessible();
  74     Reference< XAccessible > xMy = GetAccessible();
  75     if ( !(xMy.is() && xCont.is()) )
  76          return;
  77
  78     m_aImpl->m_xActiveCell = getAccessibleFactory().createEditBrowseBoxTableCellAccess(
  79          xMy,                                                       // parent accessible
  80          xCont,                                                     // control accessible
  81          VCLUnoHelper::GetInterface( &aController->GetWindow() ),   // focus window (for notifications)
  82          *this,                                                     // the browse box
  83          GetCurRow(),
  84          GetColumnPos( GetCurColumnId() )
  85      );
  86
  87     commitBrowseBoxEvent( CHILD, Any( m_aImpl->m_xActiveCell ), Any() );
  88 }
  89
  90
  91 Reference< XAccessible > EditBrowseBox::CreateAccessibleControl( sal_Int32 _nIndex )
  92 {
  93     DBG_ASSERT( 0 == _nIndex, "EditBrowseBox::CreateAccessibleControl: invalid index!" );
  94
  95     if ( isAccessibleAlive() )
  96     {
  97         if ( !m_aImpl->m_xActiveCell.is() )
  98             implCreateActiveAccessible();
  99     }
 100
 101     return m_aImpl->m_xActiveCell;
 102 }
 103
 104 void EditBrowseBoxImpl::clearActiveCell()
 105 {
 106     try
 107     {
 108         ::comphelper::disposeComponent(m_xActiveCell);
 109     }
 110     catch(const Exception&)
 111     {
 112         TOOLS_WARN_EXCEPTION( "svtools", "EditBrowseBoxImpl::clearActiveCell: caught an exception while disposing the AccessibleCell!" );
 113     }
 114
 115     m_xActiveCell = nullptr;
 116 }
 117
 118 void EditBrowseBox::GrabTableFocus()
 119 {
 120     if ( aController.is() )
 121         aController->GetWindow().GrabFocus();
 122 }
 123
 124 void EditBrowseBox::DetermineFocus( const GetFocusFlags _nGetFocusFlags )
 125 {
 126     bool bFocus = ControlHasFocus();
 127     for (vcl::Window* pWindow = Application::GetFocusWindow();
 128          pWindow && !bFocus;
 129          pWindow = pWindow->GetParent())
 130          bFocus = pWindow == this;
 131
 132     if (bFocus == bHasFocus)
 133         return;
 134
 135     bHasFocus = bFocus;
 136
 137     if ( !(GetBrowserFlags( ) & EditBrowseBoxFlags::SMART_TAB_TRAVEL) )
 138         return;
 139
 140     if  (   !(bHasFocus                           // we got the focus
 141         &&  ( _nGetFocusFlags & GetFocusFlags::Tab ))  // using the TAB key
 142         )
 143         return;
 144
 145     sal_Int32 nRows = GetRowCount();
 146     sal_uInt16 nCols = ColCount();
 147
 148     if (( nRows <= 0 ) || ( nCols <= 0 ))
 149         return;
 150
 151     if ( _nGetFocusFlags & GetFocusFlags::Forward )
 152     {
 153         if ( GetColumnId( 0 ) != HandleColumnId )
 154         {
 155             GoToRowColumnId( 0, GetColumnId( 0 ) );
 156         }
 157         else
 158         {   // the first column is the handle column -> not focussable
 159             if ( nCols > 1 )
 160                 GoToRowColumnId( 0, GetColumnId( 1 ) );
 161         }
 162     }
 163     else if ( _nGetFocusFlags & GetFocusFlags::Backward )
 164     {
 165         GoToRowColumnId( nRows - 1, GetColumnId( nCols -1 ) );
 166     }
 167 }
 168
 169 tools::Rectangle EditBrowseBox::GetFieldCharacterBounds(sal_Int32 _nRow,sal_Int32 _nColumnPos,sal_Int32 _nIndex)
 170 {
 171     tools::Rectangle aRect;
 172     if ( SeekRow(_nRow) )
 173     {
 174         CellController* pController = GetController(
 175             _nRow, GetColumnId( sal::static_int_cast< sal_uInt16 >(_nColumnPos) ) );
 176         if ( pController )
 177             aRect = pController->GetWindow().GetCharacterBounds(_nIndex);
 178     }
 179     return aRect;
 180 }
 181
 182 sal_Int32 EditBrowseBox::GetFieldIndexAtPoint(sal_Int32 _nRow,sal_Int32 _nColumnPos,const Point& _rPoint)
 183 {
 184     sal_Int32 nRet = -1;
 185     if ( SeekRow(_nRow) )
 186     {
 187         CellController* pController = GetController(
 188             _nRow, GetColumnId( sal::static_int_cast< sal_uInt16 >(_nColumnPos) ) );
 189         if ( pController )
 190             nRet = pController->GetWindow().GetIndexForPoint(_rPoint);
 191     }
 192     return nRet;
 193 }
 194
 195
 196 } // namespace svt
 197
 198
 199 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */