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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 "AccessibleChartView.hxx"
21 : #include "chartview/ExplicitValueProvider.hxx"
22 : #include "servicenames.hxx"
23 : #include "macros.hxx"
24 : #include "ObjectHierarchy.hxx"
25 : #include "ObjectIdentifier.hxx"
26 : #include "ResId.hxx"
27 : #include "Strings.hrc"
28 : #include "AccessibleViewForwarder.hxx"
29 :
30 : #include <com/sun/star/accessibility/AccessibleEventId.hpp>
31 : #include <com/sun/star/accessibility/AccessibleStateType.hpp>
32 : #include <com/sun/star/accessibility/AccessibleRole.hpp>
33 :
34 : #include <rtl/ustring.hxx>
35 : #include <vcl/window.hxx>
36 : #include <toolkit/helper/vclunohelper.hxx>
37 : // for SolarMutex
38 : #include <vcl/svapp.hxx>
39 :
40 : // header for typedef MutexGuard
41 : #include <osl/mutex.hxx>
42 :
43 : using namespace ::com::sun::star;
44 : using namespace ::com::sun::star::accessibility;
45 :
46 : using ::com::sun::star::uno::Sequence;
47 : using ::com::sun::star::uno::Reference;
48 : using ::com::sun::star::uno::WeakReference;
49 : using ::com::sun::star::uno::Any;
50 : using osl::MutexGuard;
51 :
52 : namespace chart
53 : {
54 :
55 0 : AccessibleChartView::AccessibleChartView(
56 : const Reference< uno::XComponentContext >& xContext, SdrView* pView ) :
57 : impl::AccessibleChartView_Base(
58 : AccessibleElementInfo(), // empty for now
59 : true, // has children
60 : true // always transparent
61 : ),
62 : m_xContext( xContext ),
63 : m_pSdrView( pView ),
64 0 : m_pViewForwarder( NULL )
65 : {
66 0 : AddState( AccessibleStateType::OPAQUE );
67 0 : }
68 :
69 0 : AccessibleChartView::~AccessibleChartView()
70 : {
71 0 : delete m_pViewForwarder;
72 0 : }
73 :
74 0 : awt::Rectangle AccessibleChartView::GetWindowPosSize() const
75 : {
76 0 : Reference< awt::XWindow > xWindow( GetInfo().m_xWindow );
77 0 : if( ! xWindow.is())
78 0 : return awt::Rectangle();
79 :
80 0 : awt::Rectangle aBBox( xWindow->getPosSize() );
81 :
82 0 : Window* pWindow( VCLUnoHelper::GetWindow( GetInfo().m_xWindow ));
83 0 : if( pWindow )
84 : {
85 0 : SolarMutexGuard aSolarGuard;
86 0 : Point aVCLPoint( pWindow->OutputToAbsoluteScreenPixel( Point( 0, 0 ) ));
87 0 : aBBox.X = aVCLPoint.getX();
88 0 : aBBox.Y = aVCLPoint.getY();
89 : }
90 :
91 0 : return aBBox;
92 : }
93 :
94 0 : awt::Point AccessibleChartView::GetUpperLeftOnScreen() const
95 : {
96 0 : awt::Point aParentPosition;
97 :
98 0 : awt::Rectangle aBBox( GetWindowPosSize() );
99 0 : aParentPosition.X = aBBox.X;
100 0 : aParentPosition.Y = aBBox.Y;
101 :
102 0 : return aParentPosition;
103 : }
104 :
105 : // ________ XAccessibleContext ________
106 0 : OUString SAL_CALL AccessibleChartView::getAccessibleName()
107 : throw (uno::RuntimeException, std::exception)
108 : {
109 0 : return SCH_RESSTR(STR_OBJECT_DIAGRAM);
110 : }
111 :
112 0 : OUString SAL_CALL AccessibleChartView::getAccessibleDescription()
113 : throw (uno::RuntimeException, std::exception)
114 : {
115 0 : return getAccessibleName();
116 : }
117 :
118 0 : Reference< XAccessible > SAL_CALL AccessibleChartView::getAccessibleParent()
119 : throw (uno::RuntimeException, std::exception)
120 : {
121 0 : return Reference< XAccessible >( m_xParent );
122 : }
123 :
124 0 : sal_Int32 SAL_CALL AccessibleChartView::getAccessibleIndexInParent()
125 : throw (uno::RuntimeException, std::exception)
126 : {
127 : // the document is always the only child of the window
128 0 : return 0;
129 : }
130 :
131 0 : sal_Int16 SAL_CALL AccessibleChartView::getAccessibleRole()
132 : throw (uno::RuntimeException, std::exception)
133 : {
134 0 : return AccessibleRole::DOCUMENT;
135 : }
136 :
137 : // ________ XAccessibleComponent ________
138 0 : awt::Rectangle SAL_CALL AccessibleChartView::getBounds()
139 : throw (uno::RuntimeException, std::exception)
140 : {
141 0 : awt::Rectangle aResult( GetWindowPosSize());
142 0 : Reference< XAccessible > xParent( m_xParent );
143 0 : if( xParent.is())
144 : {
145 0 : Reference< XAccessibleComponent > xContext( xParent->getAccessibleContext(), uno::UNO_QUERY );
146 0 : if( xContext.is())
147 : {
148 0 : awt::Point aParentPosition = xContext->getLocationOnScreen();
149 0 : aResult.X -= aParentPosition.X;
150 0 : aResult.Y -= aParentPosition.Y;
151 0 : }
152 : }
153 0 : return aResult;
154 : }
155 :
156 0 : awt::Point SAL_CALL AccessibleChartView::getLocationOnScreen()
157 : throw (uno::RuntimeException, std::exception)
158 : {
159 0 : awt::Rectangle aBounds( getBounds());
160 0 : awt::Point aResult;
161 0 : Reference< XAccessible > xParent( m_xParent );
162 0 : if( xParent.is())
163 : {
164 : Reference< XAccessibleComponent > xAccComp(
165 0 : xParent->getAccessibleContext(), uno::UNO_QUERY );
166 0 : aResult = xAccComp->getLocationOnScreen();
167 0 : aResult.X += aBounds.X;
168 0 : aResult.Y += aBounds.Y;
169 : }
170 0 : return aResult;
171 : }
172 :
173 : // lang::XInitialization
174 :
175 0 : void SAL_CALL AccessibleChartView::initialize( const Sequence< Any >& rArguments )
176 : throw (uno::Exception, uno::RuntimeException, std::exception)
177 : {
178 : //0: view::XSelectionSupplier offers notifications for selection changes and access to the selection itself
179 : //1: frame::XModel representing the chart model - offers access to object data
180 : //2: lang::XInterface representing the normal chart view - offers access to some extra object data
181 :
182 : //all arguments are only valid until next initialization
183 0 : bool bChanged = false;
184 0 : bool bOldInvalid = false;
185 0 : bool bNewInvalid = false;
186 :
187 0 : Reference< view::XSelectionSupplier > xSelectionSupplier;
188 0 : Reference< frame::XModel > xChartModel;
189 0 : Reference< uno::XInterface > xChartView;
190 0 : Reference< XAccessible > xParent;
191 0 : Reference< awt::XWindow > xWindow;
192 : {
193 0 : MutexGuard aGuard( GetMutex());
194 0 : xSelectionSupplier.set( m_xSelectionSupplier );
195 0 : xChartModel.set( m_xChartModel );
196 0 : xChartView.set( m_xChartView );
197 0 : xParent.set( m_xParent );
198 0 : xWindow.set( m_xWindow );
199 : }
200 :
201 0 : if( !xSelectionSupplier.is() || !xChartModel.is() || !xChartView.is() )
202 : {
203 0 : bOldInvalid = true;
204 : }
205 :
206 0 : if( rArguments.getLength() > 1 )
207 : {
208 0 : Reference< frame::XModel > xNewChartModel;
209 0 : rArguments[1] >>= xNewChartModel;
210 0 : if( xNewChartModel != xChartModel )
211 : {
212 0 : xChartModel = xNewChartModel;
213 0 : bChanged = true;
214 0 : }
215 : }
216 0 : else if( xChartModel.is() )
217 : {
218 0 : bChanged = true;
219 0 : xChartModel = 0;
220 : }
221 :
222 0 : if( rArguments.getLength() > 2 )
223 : {
224 0 : Reference< uno::XInterface > xNewChartView;
225 0 : rArguments[2] >>= xNewChartView;
226 0 : if( xNewChartView != xChartView )
227 : {
228 0 : xChartView = xNewChartView;
229 0 : bChanged = true;
230 0 : }
231 : }
232 0 : else if( xChartView.is() )
233 : {
234 0 : bChanged = true;
235 0 : xChartView = 0;
236 : }
237 :
238 0 : if( rArguments.getLength() > 3 )
239 : {
240 0 : Reference< XAccessible > xNewParent;
241 0 : rArguments[3] >>= xNewParent;
242 0 : if( xNewParent != xParent )
243 : {
244 0 : xParent = xNewParent;
245 0 : bChanged = true;
246 0 : }
247 : }
248 :
249 0 : if( rArguments.getLength() > 4 )
250 : {
251 0 : Reference< awt::XWindow > xNewWindow;
252 0 : rArguments[4] >>= xNewWindow;
253 0 : if( xNewWindow != xWindow )
254 : {
255 0 : xWindow.set( xNewWindow );
256 0 : bChanged = true;
257 0 : }
258 : }
259 :
260 0 : if( rArguments.getLength() > 0 && xChartModel.is() && xChartView.is() )
261 : {
262 0 : Reference< view::XSelectionSupplier > xNewSelectionSupplier;
263 0 : rArguments[0] >>= xNewSelectionSupplier;
264 0 : if(xSelectionSupplier!=xNewSelectionSupplier)
265 : {
266 0 : bChanged = true;
267 0 : if(xSelectionSupplier.is())
268 0 : xSelectionSupplier->removeSelectionChangeListener(this);
269 0 : if(xNewSelectionSupplier.is())
270 0 : xNewSelectionSupplier->addSelectionChangeListener(this);
271 0 : xSelectionSupplier = xNewSelectionSupplier;
272 0 : }
273 : }
274 0 : else if( xSelectionSupplier.is() )
275 : {
276 0 : bChanged = true;
277 0 : xSelectionSupplier->removeSelectionChangeListener(this);
278 0 : xSelectionSupplier = 0;
279 : }
280 :
281 0 : if( !xSelectionSupplier.is() || !xChartModel.is() || !xChartView.is() )
282 : {
283 0 : if(xSelectionSupplier.is())
284 0 : xSelectionSupplier->removeSelectionChangeListener(this);
285 0 : xSelectionSupplier = 0;
286 0 : xChartModel.clear();
287 0 : xChartView.clear();
288 0 : xParent.clear();
289 0 : xWindow.clear();
290 :
291 0 : bNewInvalid = true;
292 : }
293 :
294 : {
295 0 : MutexGuard aGuard( GetMutex());
296 0 : m_xSelectionSupplier = WeakReference< view::XSelectionSupplier >(xSelectionSupplier);
297 0 : m_xChartModel = WeakReference< frame::XModel >(xChartModel);
298 0 : m_xChartView = WeakReference< uno::XInterface >(xChartView);
299 0 : m_xParent = WeakReference< XAccessible >(xParent);
300 0 : m_xWindow = WeakReference< awt::XWindow >(xWindow);
301 : }
302 :
303 0 : if( bOldInvalid && bNewInvalid )
304 0 : bChanged = false;
305 :
306 0 : if( bChanged )
307 : {
308 : {
309 : //before notification we prepare for creation of new context
310 : //the old context will be deleted after notification than
311 0 : MutexGuard aGuard( GetMutex());
312 0 : Reference< chart2::XChartDocument > xChartDoc( xChartModel, uno::UNO_QUERY );
313 0 : if( xChartDoc.is())
314 0 : m_spObjectHierarchy.reset( new ObjectHierarchy( xChartDoc, getExplicitValueProvider() ));
315 : else
316 0 : m_spObjectHierarchy.reset();
317 : }
318 :
319 : {
320 0 : AccessibleElementInfo aAccInfo;
321 0 : aAccInfo.m_aOID = ObjectIdentifier("ROOT");
322 0 : aAccInfo.m_xChartDocument = uno::WeakReference< chart2::XChartDocument >(
323 0 : uno::Reference< chart2::XChartDocument >( m_xChartModel.get(), uno::UNO_QUERY ));
324 0 : aAccInfo.m_xSelectionSupplier = m_xSelectionSupplier;
325 0 : aAccInfo.m_xView = m_xChartView;
326 0 : aAccInfo.m_xWindow = m_xWindow;
327 0 : aAccInfo.m_pParent = 0;
328 0 : aAccInfo.m_spObjectHierarchy = m_spObjectHierarchy;
329 0 : aAccInfo.m_pSdrView = m_pSdrView;
330 0 : Window* pWindow = VCLUnoHelper::GetWindow( m_xWindow );
331 0 : if ( m_pViewForwarder )
332 : {
333 0 : delete m_pViewForwarder;
334 : }
335 0 : m_pViewForwarder = new AccessibleViewForwarder( this, pWindow );
336 0 : aAccInfo.m_pViewForwarder = m_pViewForwarder;
337 : // broadcasts an INVALIDATE_ALL_CHILDREN event globally
338 0 : SetInfo( aAccInfo );
339 : }
340 0 : }
341 0 : }
342 :
343 0 : ExplicitValueProvider* AccessibleChartView::getExplicitValueProvider()
344 : {
345 0 : return ExplicitValueProvider::getExplicitValueProvider(m_xChartView);
346 : }
347 :
348 : // view::XSelectionChangeListener
349 :
350 0 : void SAL_CALL AccessibleChartView::selectionChanged( const lang::EventObject& /*rEvent*/ )
351 : throw (uno::RuntimeException, std::exception)
352 : {
353 0 : Reference< view::XSelectionSupplier > xSelectionSupplier;
354 : {
355 0 : MutexGuard aGuard( GetMutex());
356 0 : xSelectionSupplier = Reference< view::XSelectionSupplier >(m_xSelectionSupplier);
357 : }
358 :
359 0 : if( xSelectionSupplier.is() )
360 : {
361 0 : ObjectIdentifier aSelectedOID( xSelectionSupplier->getSelection() );
362 0 : if ( m_aCurrentSelectionOID.isValid() )
363 : {
364 0 : NotifyEvent( LOST_SELECTION, m_aCurrentSelectionOID );
365 : }
366 0 : if( aSelectedOID.isValid() )
367 : {
368 0 : NotifyEvent( GOT_SELECTION, aSelectedOID );
369 : }
370 0 : m_aCurrentSelectionOID = aSelectedOID;
371 0 : }
372 0 : }
373 :
374 : // lang::XComponent::dispose()
375 0 : void SAL_CALL AccessibleChartView::disposing()
376 : {
377 0 : AccessibleBase::disposing();
378 0 : }
379 :
380 : // XEventListener
381 0 : void SAL_CALL AccessibleChartView::disposing( const lang::EventObject& /*Source*/ )
382 : throw (uno::RuntimeException, std::exception)
383 : {
384 0 : }
385 :
386 : } //namespace chart
387 :
388 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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