sd/source/ui/accessibility/AccessibleOutlineView.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 <com/sun/star/accessibility/AccessibleEventId.hpp>
  21
  22 #include <sal/log.hxx>
  23 #include <vcl/svapp.hxx>
  24 #include <Window.hxx>
  25 #include <OutlineViewShell.hxx>
  26 #include <DrawDocShell.hxx>
  27 #include <OutlineView.hxx>
  28 #include <View.hxx>
  29 #include <AccessibleOutlineView.hxx>
  30 #include <AccessibleOutlineEditSource.hxx>
  31 #include <drawdoc.hxx>
  32 #include <strings.hrc>
  33 #include <sdresid.hxx>
  34
  35 #include <memory>
  36
  37 using namespace ::com::sun::star;
  38 using namespace ::com::sun::star::accessibility;
  39
  40 namespace accessibility {
  41
  42 //=====  internal  ============================================================
  43
  44 AccessibleOutlineView::AccessibleOutlineView (
  45     ::sd::Window* pSdWindow,
  46     ::sd::OutlineViewShell* pViewShell,
  47     const uno::Reference<frame::XController>& rxController,
  48     const uno::Reference<XAccessible>& rxParent)
  49     : AccessibleDocumentViewBase (pSdWindow, pViewShell, rxController, rxParent),
  50       maTextHelper( ::std::unique_ptr< SvxEditSource >() )
  51 {
  52     SolarMutexGuard aGuard;
  53
  54     // Beware! Here we leave the paths of the UNO API and descend into the
  55     // depths of the core.  Necessary for making the edit engine accessible.
  56     if (!pSdWindow)
  57         return;
  58
  59     ::sd::View* pView = pViewShell->GetView();
  60
  61     if (dynamic_cast<const ::sd::OutlineView* >( pView ) ==  nullptr)
  62         return;
  63
  64     OutlinerView* pOutlineView = static_cast< ::sd::OutlineView*>(
  65         pView)->GetViewByWindow( pSdWindow );
  66     SdrOutliner& rOutliner =
  67         static_cast< ::sd::OutlineView*>(pView)->GetOutliner();
  68
  69     if( pOutlineView )
  70     {
  71         maTextHelper.SetEditSource( ::std::unique_ptr< SvxEditSource >( new AccessibleOutlineEditSource(
  72                                                                           rOutliner, *pView, *pOutlineView, *pSdWindow ) ) );
  73     }
  74 }
  75
  76 AccessibleOutlineView::~AccessibleOutlineView()
  77 {
  78 }
  79
  80 void AccessibleOutlineView::Init()
  81 {
  82     // Set event source _before_ starting to listen
  83     maTextHelper.SetEventSource(this);
  84
  85     AccessibleDocumentViewBase::Init ();
  86 }
  87
  88 void AccessibleOutlineView::ViewForwarderChanged()
  89 {
  90     AccessibleDocumentViewBase::ViewForwarderChanged();
  91
  92     UpdateChildren();
  93 }
  94
  95 //=====  XAccessibleContext  ==================================================
  96
  97 sal_Int32 SAL_CALL
  98     AccessibleOutlineView::getAccessibleChildCount()
  99 {
 100     ThrowIfDisposed ();
 101
 102     // forward
 103     return maTextHelper.GetChildCount();
 104 }
 105
 106 uno::Reference<XAccessible> SAL_CALL
 107     AccessibleOutlineView::getAccessibleChild (sal_Int32 nIndex)
 108 {
 109     ThrowIfDisposed ();
 110     // Forward request to children manager.
 111     return maTextHelper.GetChild(nIndex);
 112 }
 113
 114 OUString SAL_CALL
 115     AccessibleOutlineView::getAccessibleName()
 116 {
 117     SolarMutexGuard g;
 118
 119     OUString sName = SdResId(SID_SD_A11Y_D_PRESENTATION);
 120     ::sd::View* pSdView = static_cast< ::sd::View* >( maShapeTreeInfo.GetSdrView() );
 121     if ( pSdView )
 122     {
 123         SdDrawDocument& rDoc = pSdView->GetDoc();
 124         OUString sFileName = rDoc.getDocAccTitle();
 125         if (sFileName.isEmpty())
 126         {
 127             ::sd::DrawDocShell* pDocSh = pSdView->GetDocSh();
 128             if ( pDocSh )
 129             {
 130                 sFileName = pDocSh->GetTitle( SFX_TITLE_APINAME );
 131             }
 132         }
 133         if (!sFileName.isEmpty())
 134         {
 135             sName = sFileName + " - " + sName;
 136         }
 137     }
 138     return sName;
 139 }
 140
 141 //=====  XAccessibleEventBroadcaster  ========================================
 142
 143 void SAL_CALL AccessibleOutlineView::addAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
 144 {
 145     // delegate listener handling to children manager.
 146     if ( ! IsDisposed())
 147         maTextHelper.AddEventListener(xListener);
 148     AccessibleContextBase::addEventListener(xListener);
 149 }
 150
 151 void SAL_CALL AccessibleOutlineView::removeAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
 152 {
 153     // forward
 154     if ( ! IsDisposed())
 155         maTextHelper.RemoveEventListener(xListener);
 156     AccessibleContextBase::removeEventListener(xListener);
 157 }
 158
 159 // XServiceInfo
 160
 161 OUString SAL_CALL
 162     AccessibleOutlineView::getImplementationName()
 163 {
 164     return "AccessibleOutlineView";
 165 }
 166
 167 //=====  XEventListener  ======================================================
 168
 169 //=====  protected internal  ==================================================
 170
 171 void AccessibleOutlineView::Activated()
 172 {
 173     SolarMutexGuard aGuard;
 174
 175     // delegate listener handling to children manager.
 176     maTextHelper.SetFocus();
 177 }
 178
 179 void AccessibleOutlineView::Deactivated()
 180 {
 181     SolarMutexGuard aGuard;
 182
 183     // delegate listener handling to children manager.
 184     maTextHelper.SetFocus(false);
 185 }
 186
 187 void SAL_CALL AccessibleOutlineView::disposing()
 188 {
 189     // dispose children
 190     maTextHelper.Dispose();
 191
 192     AccessibleDocumentViewBase::disposing ();
 193 }
 194
 195 //=====  XPropertyChangeListener  =============================================
 196
 197 void SAL_CALL
 198     AccessibleOutlineView::propertyChange (const beans::PropertyChangeEvent& rEventObject)
 199 {
 200     ThrowIfDisposed ();
 201
 202     AccessibleDocumentViewBase::propertyChange (rEventObject);
 203
 204     //add page switch event for slide show mode
 205     if (rEventObject.PropertyName == "CurrentPage" ||
 206         rEventObject.PropertyName == "PageChange")
 207     {
 208         // The current page changed. Update the children accordingly.
 209         UpdateChildren();
 210         CommitChange(AccessibleEventId::PAGE_CHANGED,rEventObject.NewValue, rEventObject.OldValue);
 211     }
 212     else if ( rEventObject.PropertyName == "VisibleArea" )
 213     {
 214         // The visible area changed. Update the children accordingly.
 215         UpdateChildren();
 216     }
 217     else
 218     {
 219         SAL_INFO("sd", "unhandled");
 220     }
 221 }
 222
 223 /// Create a name for this view.
 224 OUString
 225     AccessibleOutlineView::CreateAccessibleName()
 226 {
 227     SolarMutexGuard aGuard;
 228
 229     return SdResId(SID_SD_A11Y_I_OUTLINEVIEW_N);
 230 }
 231
 232 void AccessibleOutlineView::UpdateChildren()
 233 {
 234     SolarMutexGuard aGuard;
 235
 236     // Update visible children
 237     maTextHelper.UpdateChildren();
 238 }
 239
 240 } // end of namespace accessibility
 241
 242 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */