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 #include <Outliner.hxx>
  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     auto pShellView = dynamic_cast<::sd::OutlineView* >( pView );
  62     if(!pShellView)
  63         return;
  64
  65     OutlinerView* pOutlineView = pShellView->GetViewByWindow( pSdWindow );
  66     SdOutliner& rOutliner = pShellView->GetOutliner();
  67
  68     if( pOutlineView )
  69     {
  70         maTextHelper.SetEditSource( ::std::unique_ptr< SvxEditSource >( new AccessibleOutlineEditSource(
  71                                                                           rOutliner, *pView, *pOutlineView, *pSdWindow ) ) );
  72     }
  73 }
  74
  75 AccessibleOutlineView::~AccessibleOutlineView()
  76 {
  77 }
  78
  79 void AccessibleOutlineView::Init()
  80 {
  81     // Set event source _before_ starting to listen
  82     maTextHelper.SetEventSource(this);
  83
  84     AccessibleDocumentViewBase::Init ();
  85 }
  86
  87 void AccessibleOutlineView::ViewForwarderChanged()
  88 {
  89     AccessibleDocumentViewBase::ViewForwarderChanged();
  90
  91     UpdateChildren();
  92 }
  93
  94 //=====  XAccessibleContext  ==================================================
  95
  96 sal_Int64 SAL_CALL
  97     AccessibleOutlineView::getAccessibleChildCount()
  98 {
  99     ThrowIfDisposed ();
 100
 101     // forward
 102     return maTextHelper.GetChildCount();
 103 }
 104
 105 uno::Reference<XAccessible> SAL_CALL
 106     AccessibleOutlineView::getAccessibleChild (sal_Int64 nIndex)
 107 {
 108     ThrowIfDisposed ();
 109     // Forward request to children manager.
 110     return maTextHelper.GetChild(nIndex);
 111 }
 112
 113 OUString SAL_CALL
 114     AccessibleOutlineView::getAccessibleName()
 115 {
 116     SolarMutexGuard g;
 117
 118     OUString sName = SdResId(SID_SD_A11Y_D_PRESENTATION);
 119     ::sd::View* pSdView = static_cast< ::sd::View* >( maShapeTreeInfo.GetSdrView() );
 120     if ( pSdView )
 121     {
 122         SdDrawDocument& rDoc = pSdView->GetDoc();
 123         OUString sFileName = rDoc.getDocAccTitle();
 124         if (sFileName.isEmpty())
 125         {
 126             ::sd::DrawDocShell* pDocSh = pSdView->GetDocSh();
 127             if ( pDocSh )
 128             {
 129                 sFileName = pDocSh->GetTitle( SFX_TITLE_APINAME );
 130             }
 131         }
 132         if (!sFileName.isEmpty())
 133         {
 134             sName = sFileName + " - " + sName;
 135         }
 136     }
 137     return sName;
 138 }
 139
 140 //=====  XAccessibleEventBroadcaster  ========================================
 141
 142 void SAL_CALL AccessibleOutlineView::addAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
 143 {
 144     // delegate listener handling to children manager.
 145     if ( ! IsDisposed())
 146         maTextHelper.AddEventListener(xListener);
 147     AccessibleContextBase::addEventListener(xListener);
 148 }
 149
 150 void SAL_CALL AccessibleOutlineView::removeAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
 151 {
 152     // forward
 153     if ( ! IsDisposed())
 154         maTextHelper.RemoveEventListener(xListener);
 155     AccessibleContextBase::removeEventListener(xListener);
 156 }
 157
 158 // XServiceInfo
 159
 160 OUString SAL_CALL
 161     AccessibleOutlineView::getImplementationName()
 162 {
 163     return u"AccessibleOutlineView"_ustr;
 164 }
 165
 166 //=====  XEventListener  ======================================================
 167
 168 //=====  protected internal  ==================================================
 169
 170 void AccessibleOutlineView::Activated()
 171 {
 172     SolarMutexGuard aGuard;
 173
 174     // delegate listener handling to children manager.
 175     maTextHelper.SetFocus();
 176 }
 177
 178 void AccessibleOutlineView::Deactivated()
 179 {
 180     SolarMutexGuard aGuard;
 181
 182     // delegate listener handling to children manager.
 183     maTextHelper.SetFocus(false);
 184 }
 185
 186 void SAL_CALL AccessibleOutlineView::disposing()
 187 {
 188     // dispose children
 189     maTextHelper.Dispose();
 190
 191     AccessibleDocumentViewBase::disposing ();
 192 }
 193
 194 //=====  XPropertyChangeListener  =============================================
 195
 196 void SAL_CALL
 197     AccessibleOutlineView::propertyChange (const beans::PropertyChangeEvent& rEventObject)
 198 {
 199     ThrowIfDisposed ();
 200
 201     AccessibleDocumentViewBase::propertyChange (rEventObject);
 202
 203     //add page switch event for slide show mode
 204     if (rEventObject.PropertyName == "CurrentPage" ||
 205         rEventObject.PropertyName == "PageChange")
 206     {
 207         // The current page changed. Update the children accordingly.
 208         UpdateChildren();
 209         CommitChange(AccessibleEventId::PAGE_CHANGED,rEventObject.NewValue, rEventObject.OldValue, -1);
 210     }
 211     else if ( rEventObject.PropertyName == "VisibleArea" )
 212     {
 213         // The visible area changed. Update the children accordingly.
 214         UpdateChildren();
 215     }
 216     else
 217     {
 218         SAL_INFO("sd", "unhandled");
 219     }
 220 }
 221
 222 /// Create a name for this view.
 223 OUString AccessibleOutlineView::CreateAccessibleName()
 224 {
 225     return SdResId(SID_SD_A11Y_I_OUTLINEVIEW_N);
 226 }
 227
 228 void AccessibleOutlineView::UpdateChildren()
 229 {
 230     SolarMutexGuard aGuard;
 231
 232     // Update visible children
 233     maTextHelper.UpdateChildren();
 234 }
 235
 236 } // end of namespace accessibility
 237
 238 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */