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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 : #ifndef INCLUDED_SC_SOURCE_UI_INC_ACCESSIBLECONTEXTBASE_HXX
21 : #define INCLUDED_SC_SOURCE_UI_INC_ACCESSIBLECONTEXTBASE_HXX
22 :
23 : #include <com/sun/star/accessibility/XAccessible.hpp>
24 : #include <com/sun/star/accessibility/XAccessibleComponent.hpp>
25 : #include <com/sun/star/accessibility/XAccessibleContext.hpp>
26 : #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
27 : #include <com/sun/star/accessibility/IllegalAccessibleComponentStateException.hpp>
28 : #include <com/sun/star/lang/DisposedException.hpp>
29 : #include <com/sun/star/uno/Reference.hxx>
30 : #include <cppuhelper/weak.hxx>
31 : #include <com/sun/star/lang/XServiceInfo.hpp>
32 : #include <com/sun/star/lang/XTypeProvider.hpp>
33 : #include <com/sun/star/lang/XServiceName.hpp>
34 : #include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
35 : #include <osl/mutex.hxx>
36 : #include <cppuhelper/interfacecontainer.h>
37 :
38 : #include <svl/lstner.hxx>
39 : #include <cppuhelper/compbase5.hxx>
40 : #include <cppuhelper/implbase1.hxx>
41 : #include <comphelper/servicehelper.hxx>
42 : #include <comphelper/broadcasthelper.hxx>
43 :
44 : class Rectangle;
45 :
46 : /** @descr
47 : This base class provides an implementation of the
48 : <code>AccessibleContext</code> service.
49 : */
50 :
51 : typedef cppu::WeakAggComponentImplHelper5<
52 : ::com::sun::star::accessibility::XAccessible,
53 : ::com::sun::star::accessibility::XAccessibleComponent,
54 : ::com::sun::star::accessibility::XAccessibleContext,
55 : ::com::sun::star::accessibility::XAccessibleEventBroadcaster,
56 : ::com::sun::star::lang::XServiceInfo
57 : > ScAccessibleContextBaseWeakImpl;
58 :
59 : typedef cppu::ImplHelper1<
60 : ::com::sun::star::accessibility::XAccessibleEventListener
61 : > ScAccessibleContextBaseImplEvent;
62 :
63 : class ScAccessibleContextBase
64 : : public comphelper::OBaseMutex,
65 : public ScAccessibleContextBaseWeakImpl,
66 : public ScAccessibleContextBaseImplEvent,
67 : public SfxListener
68 : {
69 : public:
70 : //===== internal ========================================================
71 : ScAccessibleContextBase(
72 : const ::com::sun::star::uno::Reference<
73 : ::com::sun::star::accessibility::XAccessible>& rxParent,
74 : const sal_Int16 aRole);
75 :
76 : virtual void Init();
77 : virtual void SAL_CALL disposing() SAL_OVERRIDE;
78 : protected:
79 : virtual ~ScAccessibleContextBase();
80 : public:
81 :
82 : bool SAL_CALL isShowing( )
83 : throw (::com::sun::star::uno::RuntimeException);
84 :
85 : virtual bool SAL_CALL isVisible()
86 : throw (::com::sun::star::uno::RuntimeException, std::exception);
87 :
88 : ///===== SfxListener =====================================================
89 :
90 : virtual void Notify( SfxBroadcaster& rBC, const SfxHint& rHint ) SAL_OVERRIDE;
91 :
92 : ///===== XInterface =====================================================
93 :
94 : virtual ::com::sun::star::uno::Any SAL_CALL queryInterface(
95 : ::com::sun::star::uno::Type const & rType )
96 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
97 :
98 : virtual void SAL_CALL acquire() throw () SAL_OVERRIDE;
99 :
100 : virtual void SAL_CALL release() throw () SAL_OVERRIDE;
101 :
102 : ///===== XAccessible =====================================================
103 :
104 : /// Return the XAccessibleContext.
105 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleContext> SAL_CALL
106 : getAccessibleContext() throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
107 :
108 : ///===== XAccessibleComponent ============================================
109 :
110 : virtual sal_Bool SAL_CALL containsPoint(
111 : const ::com::sun::star::awt::Point& rPoint )
112 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
113 :
114 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible >
115 : SAL_CALL getAccessibleAtPoint(
116 : const ::com::sun::star::awt::Point& rPoint )
117 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
118 :
119 : virtual ::com::sun::star::awt::Rectangle SAL_CALL getBounds( )
120 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
121 :
122 : virtual ::com::sun::star::awt::Point SAL_CALL getLocation( )
123 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
124 :
125 : virtual ::com::sun::star::awt::Point SAL_CALL getLocationOnScreen( )
126 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
127 :
128 : virtual ::com::sun::star::awt::Size SAL_CALL getSize( )
129 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
130 :
131 : virtual void SAL_CALL grabFocus( )
132 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
133 :
134 : virtual sal_Int32 SAL_CALL getForeground( )
135 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
136 :
137 : virtual sal_Int32 SAL_CALL getBackground( )
138 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
139 :
140 : ///===== XAccessibleContext ==============================================
141 :
142 : /// Return the number of currently visible children.
143 : virtual sal_Int32 SAL_CALL getAccessibleChildCount()
144 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
145 :
146 : /// Return the specified child or NULL if index is invalid.
147 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible> SAL_CALL
148 : getAccessibleChild(sal_Int32 nIndex)
149 : throw (::com::sun::star::uno::RuntimeException,
150 : ::com::sun::star::lang::IndexOutOfBoundsException,
151 : std::exception) SAL_OVERRIDE;
152 :
153 : /// Return a reference to the parent.
154 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible> SAL_CALL
155 : getAccessibleParent()
156 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
157 :
158 : /// Return this objects index among the parents children.
159 : virtual sal_Int32 SAL_CALL
160 : getAccessibleIndexInParent()
161 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
162 :
163 : /// Return this object's role.
164 : virtual sal_Int16 SAL_CALL
165 : getAccessibleRole()
166 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
167 :
168 : /// Return this object's description.
169 : virtual OUString SAL_CALL
170 : getAccessibleDescription()
171 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
172 :
173 : /// Return the object's current name.
174 : virtual OUString SAL_CALL
175 : getAccessibleName()
176 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
177 :
178 : /// Return NULL to indicate that an empty relation set.
179 : virtual ::com::sun::star::uno::Reference<
180 : ::com::sun::star::accessibility::XAccessibleRelationSet> SAL_CALL
181 : getAccessibleRelationSet()
182 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
183 :
184 : /// Return the set of current states.
185 : virtual ::com::sun::star::uno::Reference<
186 : ::com::sun::star::accessibility::XAccessibleStateSet> SAL_CALL
187 : getAccessibleStateSet()
188 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
189 :
190 : /** Return the parents locale or throw exception if this object has no
191 : parent yet/anymore.
192 : */
193 : virtual ::com::sun::star::lang::Locale SAL_CALL
194 : getLocale()
195 : throw (::com::sun::star::uno::RuntimeException,
196 : ::com::sun::star::accessibility::IllegalAccessibleComponentStateException, std::exception) SAL_OVERRIDE;
197 :
198 : ///===== XAccessibleEventBroadcaster =====================================
199 :
200 : /** Add listener that is informed of future changes of name,
201 : description and so on events.
202 : */
203 : virtual void SAL_CALL
204 : addAccessibleEventListener(
205 : const ::com::sun::star::uno::Reference<
206 : ::com::sun::star::accessibility::XAccessibleEventListener>& xListener)
207 : throw (com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
208 :
209 : // Remove an existing event listener.
210 : virtual void SAL_CALL
211 : removeAccessibleEventListener(
212 : const ::com::sun::star::uno::Reference<
213 : ::com::sun::star::accessibility::XAccessibleEventListener>& xListener)
214 : throw (com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
215 :
216 : ///===== XAccessibleEventListener ========================================
217 :
218 : virtual void SAL_CALL
219 : disposing( const ::com::sun::star::lang::EventObject& Source )
220 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
221 :
222 : virtual void SAL_CALL
223 : notifyEvent(
224 : const ::com::sun::star::accessibility::AccessibleEventObject& aEvent )
225 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
226 :
227 : ///===== XServiceInfo ====================================================
228 :
229 : /** Returns an identifier for the implementation of this object.
230 : */
231 : virtual OUString SAL_CALL
232 : getImplementationName()
233 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
234 :
235 : /** Return whether the specified service is supported by this class.
236 : */
237 : virtual sal_Bool SAL_CALL
238 : supportsService(const OUString& sServiceName)
239 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
240 :
241 : /** Returns a list of all supported services. In this case that is just
242 : the AccessibleContext and Accessible service.
243 : */
244 : virtual ::com::sun::star::uno::Sequence< OUString> SAL_CALL
245 : getSupportedServiceNames()
246 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
247 :
248 : ///===== XTypeProvider ===================================================
249 :
250 : /// returns the possible types
251 : virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type > SAL_CALL
252 : getTypes()
253 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
254 :
255 : /** Returns a implementation id.
256 : */
257 : virtual ::com::sun::star::uno::Sequence<sal_Int8> SAL_CALL
258 : getImplementationId()
259 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
260 :
261 : protected:
262 : /// Return this object's description.
263 : virtual OUString SAL_CALL
264 : createAccessibleDescription()
265 : throw (::com::sun::star::uno::RuntimeException);
266 :
267 : /// Return the object's current name.
268 : virtual OUString SAL_CALL
269 : createAccessibleName()
270 : throw (::com::sun::star::uno::RuntimeException,
271 : std::exception);
272 :
273 : /// Return the object's current bounding box relative to the desktop.
274 : virtual Rectangle GetBoundingBoxOnScreen() const
275 : throw (::com::sun::star::uno::RuntimeException, std::exception);
276 :
277 : /// Return the object's current bounding box relative to the parent object.
278 : virtual Rectangle GetBoundingBox() const
279 : throw (::com::sun::star::uno::RuntimeException, std::exception);
280 :
281 : public:
282 : /// Calls all Listener to tell they the change.
283 : void
284 : CommitChange(const com::sun::star::accessibility::AccessibleEventObject& rEvent) const;
285 :
286 : protected:
287 : /// Calls all FocusListener to tell they that the focus is gained.
288 : void CommitFocusGained() const;
289 :
290 : /// Calls all FocusListener to tell they that the focus is lost.
291 : void CommitFocusLost() const;
292 :
293 469 : bool IsDefunc() const { return rBHelper.bDisposed; }
294 :
295 : void IsObjectValid() const
296 : throw (::com::sun::star::lang::DisposedException);
297 :
298 : /// Use this method to set initial Name without notification
299 0 : void SetName(const OUString& rName) { msName = rName; }
300 : /// Use this method to set initial Description without notification
301 0 : void SetDescription(const OUString& rDesc) { msDescription = rDesc; }
302 :
303 : /// Reference to the parent object.
304 : ::com::sun::star::uno::Reference<
305 : ::com::sun::star::accessibility::XAccessible> mxParent;
306 :
307 : private:
308 : /** Description of this object. This is not a constant because it can
309 : be set from the outside. Furthermore, it changes according to the
310 : draw page's display mode.
311 : */
312 : OUString msDescription;
313 :
314 : /** Name of this object. It changes according the draw page's
315 : display mode.
316 : */
317 : OUString msName;
318 :
319 : /// client id in the AccessibleEventNotifier queue
320 : sal_uInt32 mnClientId;
321 :
322 : /** This is the role of this object.
323 : */
324 : sal_Int16 maRole;
325 : };
326 :
327 : #endif
328 :
329 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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