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             nullptr,
  52             _nRow,
  53             _nColumnPos,
  54             eState,
  55             true
  56         );
  57     }
  58     return xReturn;
  59 }
  60
  61 sal_Int32 EditBrowseBox::GetAccessibleControlCount() const
  62 {
  63     return IsEditing() ? 1 : 0;
  64 }
  65
  66 void EditBrowseBox::implCreateActiveAccessible( )
  67 {
  68     DBG_ASSERT( IsEditing(), "EditBrowseBox::implCreateActiveAccessible: not to be called if we're not editing currently!" );
  69     DBG_ASSERT( !m_aImpl->m_xActiveCell.is(), "EditBrowseBox::implCreateActiveAccessible: not to be called if the old one is still alive!" );
  70
  71     if ( m_aImpl->m_xActiveCell.is() || !IsEditing() )
  72          return;
  73
  74     Reference< XAccessible > xCont = aController->GetWindow().GetAccessible();
  75     Reference< XAccessible > xMy = GetAccessible();
  76     if ( !(xMy.is() && xCont.is()) )
  77          return;
  78
  79     m_aImpl->m_xActiveCell = getAccessibleFactory().createEditBrowseBoxTableCellAccess(
  80          xMy,                                                       // parent accessible
  81          xCont,                                                     // control accessible
  82          VCLUnoHelper::GetInterface( &aController->GetWindow() ),   // focus window (for notifications)
  83          *this,                                                     // the browse box
  84          GetCurRow(),
  85          GetColumnPos( GetCurColumnId() )
  86      );
  87
  88     commitBrowseBoxEvent( CHILD, Any( m_aImpl->m_xActiveCell ), Any() );
  89 }
  90
  91
  92 Reference< XAccessible > EditBrowseBox::CreateAccessibleControl( sal_Int32 _nIndex )
  93 {
  94     DBG_ASSERT( 0 == _nIndex, "EditBrowseBox::CreateAccessibleControl: invalid index!" );
  95
  96     if ( isAccessibleAlive() )
  97     {
  98         if ( !m_aImpl->m_xActiveCell.is() )
  99             implCreateActiveAccessible();
 100     }
 101
 102     return m_aImpl->m_xActiveCell;
 103 }
 104
 105 void EditBrowseBoxImpl::clearActiveCell()
 106 {
 107     try
 108     {
 109         ::comphelper::disposeComponent(m_xActiveCell);
 110     }
 111     catch(const Exception&)
 112     {
 113         TOOLS_WARN_EXCEPTION( "svtools", "EditBrowseBoxImpl::clearActiveCell: caught an exception while disposing the AccessibleCell!" );
 114     }
 115
 116     m_xActiveCell = nullptr;
 117 }
 118
 119 void EditBrowseBox::GrabTableFocus()
 120 {
 121     if ( aController.is() )
 122         aController->GetWindow().GrabFocus();
 123 }
 124
 125 void EditBrowseBox::DetermineFocus( const GetFocusFlags _nGetFocusFlags )
 126 {
 127     bool bFocus = ControlHasFocus();
 128     for (vcl::Window* pWindow = Application::GetFocusWindow();
 129          pWindow && !bFocus;
 130          pWindow = pWindow->GetParent())
 131          bFocus = pWindow == this;
 132
 133     if (bFocus == bHasFocus)
 134         return;
 135
 136     bHasFocus = bFocus;
 137
 138     if ( !(GetBrowserFlags( ) & EditBrowseBoxFlags::SMART_TAB_TRAVEL) )
 139         return;
 140
 141     if  (   !(bHasFocus                           // we got the focus
 142         &&  ( _nGetFocusFlags & GetFocusFlags::Tab ))  // using the TAB key
 143         )
 144         return;
 145
 146     sal_Int32 nRows = GetRowCount();
 147     sal_uInt16 nCols = ColCount();
 148
 149     if (( nRows <= 0 ) || ( nCols <= 0 ))
 150         return;
 151
 152     if ( _nGetFocusFlags & GetFocusFlags::Forward )
 153     {
 154         if ( GetColumnId( 0 ) != HandleColumnId )
 155         {
 156             GoToRowColumnId( 0, GetColumnId( 0 ) );
 157         }
 158         else
 159         {   // the first column is the handle column -> not focussable
 160             if ( nCols > 1 )
 161                 GoToRowColumnId( 0, GetColumnId( 1 ) );
 162         }
 163     }
 164     else if ( _nGetFocusFlags & GetFocusFlags::Backward )
 165     {
 166         GoToRowColumnId( nRows - 1, GetColumnId( nCols -1 ) );
 167     }
 168 }
 169
 170 tools::Rectangle EditBrowseBox::GetFieldCharacterBounds(sal_Int32 _nRow,sal_Int32 _nColumnPos,sal_Int32 _nIndex)
 171 {
 172     tools::Rectangle aRect;
 173     if ( SeekRow(_nRow) )
 174     {
 175         CellController* pController = GetController(
 176             _nRow, GetColumnId( sal::static_int_cast< sal_uInt16 >(_nColumnPos) ) );
 177         if ( pController )
 178             aRect = pController->GetWindow().GetCharacterBounds(_nIndex);
 179     }
 180     return aRect;
 181 }
 182
 183 sal_Int32 EditBrowseBox::GetFieldIndexAtPoint(sal_Int32 _nRow,sal_Int32 _nColumnPos,const Point& _rPoint)
 184 {
 185     sal_Int32 nRet = -1;
 186     if ( SeekRow(_nRow) )
 187     {
 188         CellController* pController = GetController(
 189             _nRow, GetColumnId( sal::static_int_cast< sal_uInt16 >(_nColumnPos) ) );
 190         if ( pController )
 191             nRet = pController->GetWindow().GetIndexForPoint(_rPoint);
 192     }
 193     return nRet;
 194 }
 195
 196
 197 } // namespace svt
 198
 199
 200 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */