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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 "accessibility/extended/AccessibleToolPanelDeck.hxx"
21 :
22 : #include <com/sun/star/accessibility/AccessibleRole.hpp>
23 : #include <com/sun/star/accessibility/AccessibleEventId.hpp>
24 : #include <com/sun/star/accessibility/AccessibleStateType.hpp>
25 : #include <com/sun/star/lang/DisposedException.hpp>
26 :
27 : #include <svtools/toolpanel/toolpaneldeck.hxx>
28 : #include <toolkit/awt/vclxwindow.hxx>
29 : #include <toolkit/helper/vclunohelper.hxx>
30 : #include <vcl/svapp.hxx>
31 : #include <osl/mutex.hxx>
32 : #include <unotools/accessiblestatesethelper.hxx>
33 : #include <tools/diagnose_ex.h>
34 :
35 : #include <boost/noncopyable.hpp>
36 :
37 :
38 : namespace accessibility
39 : {
40 : using ::com::sun::star::uno::Reference;
41 : using ::com::sun::star::uno::XInterface;
42 : using ::com::sun::star::uno::UNO_QUERY;
43 : using ::com::sun::star::uno::UNO_QUERY_THROW;
44 : using ::com::sun::star::uno::UNO_SET_THROW;
45 : using ::com::sun::star::uno::Exception;
46 : using ::com::sun::star::uno::RuntimeException;
47 : using ::com::sun::star::uno::Any;
48 : using ::com::sun::star::uno::makeAny;
49 : using ::com::sun::star::uno::Sequence;
50 : using ::com::sun::star::uno::Type;
51 : using ::com::sun::star::accessibility::XAccessible;
52 : using ::com::sun::star::accessibility::XAccessibleContext;
53 : using ::com::sun::star::lang::DisposedException;
54 : using ::com::sun::star::lang::IndexOutOfBoundsException;
55 : using ::com::sun::star::lang::Locale;
56 : using ::com::sun::star::accessibility::XAccessibleRelationSet;
57 : using ::com::sun::star::accessibility::XAccessibleStateSet;
58 : using ::com::sun::star::accessibility::IllegalAccessibleComponentStateException;
59 : using ::com::sun::star::awt::XFont;
60 :
61 : namespace AccessibleRole = ::com::sun::star::accessibility::AccessibleRole;
62 : namespace AccessibleEventId = ::com::sun::star::accessibility::AccessibleEventId;
63 : namespace AccessibleStateType = ::com::sun::star::accessibility::AccessibleStateType;
64 :
65 : typedef ::com::sun::star::awt::Point UnoPoint;
66 :
67 : // AccessibleToolPanelDeck_Impl - declaration
68 : class AccessibleToolPanelDeck_Impl :public ::boost::noncopyable
69 : ,public ::svt::IToolPanelDeckListener
70 : {
71 : public:
72 : AccessibleToolPanelDeck_Impl(
73 : AccessibleToolPanelDeck& i_rAntiImpl,
74 : const Reference< XAccessible >& i_rAccessibleParent,
75 : ::svt::ToolPanelDeck& i_rPanelDeck
76 : );
77 :
78 : void checkDisposed();
79 0 : bool isDisposed() const { return m_pPanelDeck == NULL; }
80 : void dispose();
81 :
82 : virtual ~AccessibleToolPanelDeck_Impl();
83 :
84 : Reference< XAccessible > getOwnAccessible() const;
85 : Reference< XAccessible > getActivePanelAccessible();
86 :
87 : protected:
88 : // IToolPanelDeckListener
89 : virtual void PanelInserted( const ::svt::PToolPanel& i_pPanel, const size_t i_nPosition ) SAL_OVERRIDE;
90 : virtual void PanelRemoved( const size_t i_nPosition ) SAL_OVERRIDE;
91 : virtual void ActivePanelChanged( const ::boost::optional< size_t >& i_rOldActive, const ::boost::optional< size_t >& i_rNewActive ) SAL_OVERRIDE;
92 : virtual void LayouterChanged( const ::svt::PDeckLayouter& i_rNewLayouter ) SAL_OVERRIDE;
93 : virtual void Dying() SAL_OVERRIDE;
94 :
95 : public:
96 : AccessibleToolPanelDeck& m_rAntiImpl;
97 : Reference< XAccessible > m_xAccessibleParent;
98 : ::svt::ToolPanelDeck* m_pPanelDeck;
99 :
100 : Reference< XAccessible > m_xActivePanelAccessible;
101 : };
102 :
103 : // MethodGuard
104 : namespace
105 : {
106 : class MethodGuard
107 : {
108 : public:
109 0 : MethodGuard( AccessibleToolPanelDeck_Impl& i_rImpl )
110 0 : :m_aGuard()
111 : {
112 0 : i_rImpl.checkDisposed();
113 0 : }
114 0 : ~MethodGuard()
115 0 : {
116 0 : }
117 :
118 : private:
119 : SolarMutexGuard m_aGuard;
120 : };
121 : }
122 :
123 : // AccessibleToolPanelDeck_Impl - implementation
124 0 : AccessibleToolPanelDeck_Impl::AccessibleToolPanelDeck_Impl( AccessibleToolPanelDeck& i_rAntiImpl, const Reference< XAccessible >& i_rAccessibleParent,
125 : ::svt::ToolPanelDeck& i_rPanelDeck )
126 : :m_rAntiImpl( i_rAntiImpl )
127 : ,m_xAccessibleParent( i_rAccessibleParent )
128 : ,m_pPanelDeck( &i_rPanelDeck )
129 0 : ,m_xActivePanelAccessible()
130 : {
131 0 : m_pPanelDeck->AddListener( *this );
132 0 : }
133 :
134 0 : AccessibleToolPanelDeck_Impl::~AccessibleToolPanelDeck_Impl()
135 : {
136 0 : if ( !isDisposed() )
137 0 : dispose();
138 0 : }
139 :
140 0 : void AccessibleToolPanelDeck_Impl::dispose()
141 : {
142 0 : ENSURE_OR_RETURN_VOID( !isDisposed(), "disposed twice" );
143 0 : m_pPanelDeck->RemoveListener( *this );
144 0 : m_pPanelDeck = NULL;
145 0 : m_xAccessibleParent.clear();
146 : }
147 :
148 0 : void AccessibleToolPanelDeck_Impl::checkDisposed()
149 : {
150 0 : if ( isDisposed() )
151 0 : throw DisposedException( OUString(), *&m_rAntiImpl );
152 0 : }
153 :
154 0 : Reference< XAccessible > AccessibleToolPanelDeck_Impl::getOwnAccessible() const
155 : {
156 0 : Reference< XAccessible > xOwnAccessible( static_cast< XAccessible* >( m_rAntiImpl.GetVCLXWindow() ) );
157 : OSL_ENSURE( xOwnAccessible->getAccessibleContext() == Reference< XAccessibleContext >( &m_rAntiImpl ),
158 : "AccessibleToolPanelDeck_Impl::getOwnAccessible: could not retrieve proper XAccessible for /myself!" );
159 0 : return xOwnAccessible;
160 : }
161 :
162 0 : Reference< XAccessible > AccessibleToolPanelDeck_Impl::getActivePanelAccessible()
163 : {
164 0 : ENSURE_OR_RETURN( !isDisposed(), "AccessibleToolPanelDeck_Impl::getActivePanelAccessible: already disposed!", NULL );
165 :
166 0 : if ( !m_xActivePanelAccessible.is() )
167 : {
168 0 : ::boost::optional< size_t > aActivePanel( m_pPanelDeck->GetActivePanel() );
169 0 : ENSURE_OR_RETURN( !!aActivePanel, "AccessibleToolPanelDeck_Impl::getActivePanelAccessible: this should not be called without an active panel!", NULL );
170 0 : ::svt::PToolPanel pActivePanel( m_pPanelDeck->GetPanel( *aActivePanel ) );
171 0 : ENSURE_OR_RETURN( pActivePanel.get() != NULL, "AccessibleToolPanelDeck_Impl::getActivePanelAccessible: no active panel!", NULL );
172 0 : m_xActivePanelAccessible = pActivePanel->CreatePanelAccessible( getOwnAccessible() );
173 0 : OSL_ENSURE( m_xActivePanelAccessible.is(), "AccessibleToolPanelDeck_Impl::getActivePanelAccessible: illegal accessible returned by the panel!" );
174 : }
175 :
176 0 : return m_xActivePanelAccessible;
177 : }
178 :
179 0 : void AccessibleToolPanelDeck_Impl::PanelInserted( const ::svt::PToolPanel& i_pPanel, const size_t i_nPosition )
180 : {
181 : (void)i_pPanel;
182 : (void)i_nPosition;
183 0 : }
184 :
185 0 : void AccessibleToolPanelDeck_Impl::PanelRemoved( const size_t i_nPosition )
186 : {
187 : (void)i_nPosition;
188 0 : }
189 :
190 0 : void AccessibleToolPanelDeck_Impl::ActivePanelChanged( const ::boost::optional< size_t >& i_rOldActive, const ::boost::optional< size_t >& i_rNewActive )
191 : {
192 0 : if ( !!i_rOldActive )
193 : {
194 0 : if ( !m_xActivePanelAccessible.is() )
195 : {
196 : // again, this might in theory happen if the XAccessible for the active panel has never before been requested.
197 : // In this case, just say that all our children are invalid, so they all must be re-requested.
198 0 : m_rAntiImpl.NotifyAccessibleEvent( AccessibleEventId::INVALIDATE_ALL_CHILDREN, Any(), Any() );
199 : }
200 : else
201 : {
202 0 : m_rAntiImpl.NotifyAccessibleEvent( AccessibleEventId::CHILD, makeAny( m_xActivePanelAccessible ), Any() );
203 : }
204 : }
205 :
206 0 : m_xActivePanelAccessible.clear();
207 :
208 0 : if ( !!i_rNewActive )
209 : {
210 0 : m_rAntiImpl.NotifyAccessibleEvent( AccessibleEventId::CHILD, Any(), makeAny( getActivePanelAccessible() ) );
211 : }
212 0 : }
213 :
214 0 : void AccessibleToolPanelDeck_Impl::LayouterChanged( const ::svt::PDeckLayouter& i_rNewLayouter )
215 : {
216 0 : MethodGuard aGuard( *this );
217 :
218 : (void)i_rNewLayouter;
219 0 : m_rAntiImpl.NotifyAccessibleEvent( AccessibleEventId::INVALIDATE_ALL_CHILDREN, Any(), Any() );
220 0 : }
221 :
222 0 : void AccessibleToolPanelDeck_Impl::Dying()
223 : {
224 : // the tool panel deck is dying, so dispose ourself
225 0 : m_rAntiImpl.dispose();
226 0 : }
227 :
228 : // AccessibleToolPanelDeck
229 0 : AccessibleToolPanelDeck::AccessibleToolPanelDeck( const Reference< XAccessible >& i_rAccessibleParent,
230 : ::svt::ToolPanelDeck& i_rPanelDeck )
231 : :AccessibleToolPanelDeck_Base( i_rPanelDeck.GetWindowPeer() )
232 0 : ,m_pImpl( new AccessibleToolPanelDeck_Impl( *this, i_rAccessibleParent, i_rPanelDeck ) )
233 : {
234 0 : }
235 :
236 0 : AccessibleToolPanelDeck::~AccessibleToolPanelDeck()
237 : {
238 0 : }
239 :
240 0 : sal_Int32 SAL_CALL AccessibleToolPanelDeck::getAccessibleChildCount( ) throw (RuntimeException, std::exception)
241 : {
242 0 : MethodGuard aGuard( *m_pImpl );
243 :
244 0 : sal_Int32 nChildCount( m_pImpl->m_pPanelDeck->GetLayouter()->GetAccessibleChildCount() );
245 :
246 0 : ::boost::optional< size_t > aActivePanel( m_pImpl->m_pPanelDeck->GetActivePanel() );
247 0 : if ( !!aActivePanel )
248 0 : return ++nChildCount;
249 :
250 0 : return nChildCount;
251 : }
252 :
253 0 : Reference< XAccessible > SAL_CALL AccessibleToolPanelDeck::getAccessibleChild( sal_Int32 i_nIndex ) throw (IndexOutOfBoundsException, RuntimeException, std::exception)
254 : {
255 0 : MethodGuard aGuard( *m_pImpl );
256 :
257 0 : const sal_Int32 nChildCount( getAccessibleChildCount() );
258 0 : if ( ( i_nIndex < 0 ) || ( i_nIndex >= nChildCount ) )
259 0 : throw IndexOutOfBoundsException( OUString(), *this );
260 :
261 : // first "n" children are provided by the layouter
262 0 : const size_t nLayouterCount( m_pImpl->m_pPanelDeck->GetLayouter()->GetAccessibleChildCount() );
263 0 : if ( size_t( i_nIndex ) < nLayouterCount )
264 0 : return m_pImpl->m_pPanelDeck->GetLayouter()->GetAccessibleChild(
265 : size_t( i_nIndex ),
266 : m_pImpl->getOwnAccessible()
267 0 : );
268 :
269 : // the last child is the XAccessible of the active panel
270 0 : return m_pImpl->getActivePanelAccessible();
271 : }
272 :
273 0 : Reference< XAccessible > SAL_CALL AccessibleToolPanelDeck::getAccessibleParent( ) throw (RuntimeException, std::exception)
274 : {
275 0 : MethodGuard aGuard( *m_pImpl );
276 0 : const Reference< XAccessible > xParent = implGetForeignControlledParent();
277 0 : if ( xParent.is() )
278 0 : return xParent;
279 0 : return m_pImpl->m_xAccessibleParent;
280 : }
281 :
282 0 : sal_Int16 SAL_CALL AccessibleToolPanelDeck::getAccessibleRole( ) throw (RuntimeException, std::exception)
283 : {
284 0 : MethodGuard aGuard( *m_pImpl );
285 0 : return AccessibleRole::PANEL;
286 : }
287 :
288 0 : Reference< XAccessible > SAL_CALL AccessibleToolPanelDeck::getAccessibleAtPoint( const UnoPoint& i_rPoint ) throw (RuntimeException, std::exception)
289 : {
290 0 : MethodGuard aGuard( *m_pImpl );
291 :
292 0 : const ::Point aRequestedPoint( VCLUnoHelper::ConvertToVCLPoint( i_rPoint ) );
293 : // check the panel window itself
294 0 : const ::Window& rActivePanelAnchor( m_pImpl->m_pPanelDeck->GetPanelWindowAnchor() );
295 0 : const Rectangle aPanelAnchorArea( rActivePanelAnchor.GetPosPixel(), rActivePanelAnchor.GetOutputSizePixel() );
296 0 : if ( aPanelAnchorArea.IsInside( aRequestedPoint ) )
297 : // note that this assumes that the Window which actually implements the concrete panel covers
298 : // the complete area of its "anchor" Window. But this is ensured by the ToolPanelDeck implementation.
299 0 : return m_pImpl->getActivePanelAccessible();
300 :
301 : // check the XAccessible instances provided by the layouter
302 : try
303 : {
304 0 : const ::svt::PDeckLayouter pLayouter( m_pImpl->m_pPanelDeck->GetLayouter() );
305 0 : ENSURE_OR_THROW( pLayouter.get() != NULL, "invalid layouter" );
306 :
307 0 : const size_t nLayouterChildren = pLayouter->GetAccessibleChildCount();
308 0 : for ( size_t i=0; i<nLayouterChildren; ++i )
309 : {
310 0 : const Reference< XAccessible > xLayoutItemAccessible( pLayouter->GetAccessibleChild( i, m_pImpl->getOwnAccessible() ), UNO_SET_THROW );
311 0 : const Reference< XAccessibleComponent > xLayoutItemComponent( xLayoutItemAccessible->getAccessibleContext(), UNO_QUERY_THROW );
312 0 : const ::Rectangle aLayoutItemBounds( VCLUnoHelper::ConvertToVCLRect( xLayoutItemComponent->getBounds() ) );
313 0 : if ( aLayoutItemBounds.IsInside( aRequestedPoint ) )
314 0 : return xLayoutItemAccessible;
315 0 : }
316 : }
317 0 : catch( const Exception& )
318 : {
319 : DBG_UNHANDLED_EXCEPTION();
320 : }
321 :
322 0 : return NULL;
323 : }
324 :
325 0 : void SAL_CALL AccessibleToolPanelDeck::grabFocus( ) throw (RuntimeException, std::exception)
326 : {
327 0 : MethodGuard aGuard( *m_pImpl );
328 0 : m_pImpl->m_pPanelDeck->GrabFocus();
329 0 : }
330 :
331 0 : void SAL_CALL AccessibleToolPanelDeck::disposing()
332 : {
333 0 : AccessibleToolPanelDeck_Base::disposing();
334 0 : m_pImpl->dispose();
335 0 : }
336 :
337 0 : Reference< XAccessible > AccessibleToolPanelDeck::GetChildAccessible( const VclWindowEvent& i_rVclWindowEvent )
338 : {
339 : // don't let the base class generate any A11Y events from VclWindowEvent, we completely manage those
340 : // A11Y events ourself
341 : (void)i_rVclWindowEvent;
342 0 : return NULL;
343 : }
344 :
345 0 : void AccessibleToolPanelDeck::FillAccessibleStateSet( ::utl::AccessibleStateSetHelper& i_rStateSet )
346 : {
347 0 : AccessibleToolPanelDeck_Base::FillAccessibleStateSet( i_rStateSet );
348 0 : if ( m_pImpl->isDisposed() )
349 : {
350 0 : i_rStateSet.AddState( AccessibleStateType::DEFUNC );
351 : }
352 : else
353 : {
354 0 : i_rStateSet.AddState( AccessibleStateType::FOCUSABLE );
355 : }
356 0 : }
357 : } // namespace accessibility
358 :
359 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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