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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 :
21 : #ifndef _SC_ACCESSIBLECONTEXTBASE_HXX
22 : #define _SC_ACCESSIBLECONTEXTBASE_HXX
23 :
24 : #include <com/sun/star/accessibility/XAccessible.hpp>
25 : #include <com/sun/star/accessibility/XAccessibleComponent.hpp>
26 : #include <com/sun/star/accessibility/XAccessibleContext.hpp>
27 : #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
28 : #include <com/sun/star/accessibility/IllegalAccessibleComponentStateException.hpp>
29 : #include <com/sun/star/lang/DisposedException.hpp>
30 : #include <com/sun/star/uno/Reference.hxx>
31 : #include <cppuhelper/weak.hxx>
32 : #include <com/sun/star/lang/XServiceInfo.hpp>
33 : #include <com/sun/star/lang/XTypeProvider.hpp>
34 : #include <com/sun/star/lang/XServiceName.hpp>
35 : #include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
36 : #include <osl/mutex.hxx>
37 : #include <cppuhelper/interfacecontainer.h>
38 :
39 :
40 : #include <svl/lstner.hxx>
41 : #include <cppuhelper/compbase5.hxx>
42 : #include <cppuhelper/implbase1.hxx>
43 : #include <comphelper/servicehelper.hxx>
44 : #include <comphelper/broadcasthelper.hxx>
45 :
46 : class Rectangle;
47 :
48 : /** @descr
49 : This base class provides an implementation of the
50 : <code>AccessibleContext</code> service.
51 : */
52 :
53 : typedef cppu::WeakAggComponentImplHelper5<
54 : ::com::sun::star::accessibility::XAccessible,
55 : ::com::sun::star::accessibility::XAccessibleComponent,
56 : ::com::sun::star::accessibility::XAccessibleContext,
57 : ::com::sun::star::accessibility::XAccessibleEventBroadcaster,
58 : ::com::sun::star::lang::XServiceInfo
59 : > ScAccessibleContextBaseWeakImpl;
60 :
61 : typedef cppu::ImplHelper1<
62 : ::com::sun::star::accessibility::XAccessibleEventListener
63 : > ScAccessibleContextBaseImplEvent;
64 :
65 : class ScAccessibleContextBase
66 : : public comphelper::OBaseMutex,
67 : public ScAccessibleContextBaseWeakImpl,
68 : public ScAccessibleContextBaseImplEvent,
69 : public SfxListener
70 : {
71 : public:
72 : //===== internal ========================================================
73 : ScAccessibleContextBase(
74 : const ::com::sun::star::uno::Reference<
75 : ::com::sun::star::accessibility::XAccessible>& rxParent,
76 : const sal_Int16 aRole);
77 :
78 : virtual void Init();
79 : virtual void SAL_CALL disposing();
80 : protected:
81 : virtual ~ScAccessibleContextBase(void);
82 : public:
83 : ///===== SfxListener =====================================================
84 :
85 : virtual void Notify( SfxBroadcaster& rBC, const SfxHint& rHint );
86 :
87 : ///===== XInterface =====================================================
88 :
89 : virtual ::com::sun::star::uno::Any SAL_CALL queryInterface(
90 : ::com::sun::star::uno::Type const & rType )
91 : throw (::com::sun::star::uno::RuntimeException);
92 :
93 : virtual void SAL_CALL acquire() throw ();
94 :
95 : virtual void SAL_CALL release() throw ();
96 :
97 : ///===== XAccessible =====================================================
98 :
99 : /// Return the XAccessibleContext.
100 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleContext> SAL_CALL
101 : getAccessibleContext(void) throw (::com::sun::star::uno::RuntimeException);
102 :
103 : ///===== XAccessibleComponent ============================================
104 :
105 : virtual sal_Bool SAL_CALL containsPoint(
106 : const ::com::sun::star::awt::Point& rPoint )
107 : throw (::com::sun::star::uno::RuntimeException);
108 :
109 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible >
110 : SAL_CALL getAccessibleAtPoint(
111 : const ::com::sun::star::awt::Point& rPoint )
112 : throw (::com::sun::star::uno::RuntimeException);
113 :
114 : virtual ::com::sun::star::awt::Rectangle SAL_CALL getBounds( )
115 : throw (::com::sun::star::uno::RuntimeException);
116 :
117 : virtual ::com::sun::star::awt::Point SAL_CALL getLocation( )
118 : throw (::com::sun::star::uno::RuntimeException);
119 :
120 : virtual ::com::sun::star::awt::Point SAL_CALL getLocationOnScreen( )
121 : throw (::com::sun::star::uno::RuntimeException);
122 :
123 : virtual ::com::sun::star::awt::Size SAL_CALL getSize( )
124 : throw (::com::sun::star::uno::RuntimeException);
125 :
126 : virtual sal_Bool SAL_CALL isShowing( )
127 : throw (::com::sun::star::uno::RuntimeException);
128 :
129 : virtual sal_Bool SAL_CALL isVisible( )
130 : throw (::com::sun::star::uno::RuntimeException);
131 :
132 : virtual void SAL_CALL grabFocus( )
133 : throw (::com::sun::star::uno::RuntimeException);
134 :
135 : virtual sal_Int32 SAL_CALL getForeground( )
136 : throw (::com::sun::star::uno::RuntimeException);
137 :
138 : virtual sal_Int32 SAL_CALL getBackground( )
139 : throw (::com::sun::star::uno::RuntimeException);
140 :
141 : ///===== XAccessibleContext ==============================================
142 :
143 : /// Return the number of currently visible children.
144 : virtual sal_Int32 SAL_CALL
145 : getAccessibleChildCount(void) throw (::com::sun::star::uno::RuntimeException);
146 :
147 : /// Return the specified child or NULL if index is invalid.
148 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible> SAL_CALL
149 : getAccessibleChild(sal_Int32 nIndex)
150 : throw (::com::sun::star::uno::RuntimeException,
151 : ::com::sun::star::lang::IndexOutOfBoundsException);
152 :
153 : /// Return a reference to the parent.
154 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible> SAL_CALL
155 : getAccessibleParent(void)
156 : throw (::com::sun::star::uno::RuntimeException);
157 :
158 : /// Return this objects index among the parents children.
159 : virtual sal_Int32 SAL_CALL
160 : getAccessibleIndexInParent(void)
161 : throw (::com::sun::star::uno::RuntimeException);
162 :
163 : /// Return this object's role.
164 : virtual sal_Int16 SAL_CALL
165 : getAccessibleRole(void)
166 : throw (::com::sun::star::uno::RuntimeException);
167 :
168 : /// Return this object's description.
169 : virtual ::rtl::OUString SAL_CALL
170 : getAccessibleDescription(void)
171 : throw (::com::sun::star::uno::RuntimeException);
172 :
173 : /// Return the object's current name.
174 : virtual ::rtl::OUString SAL_CALL
175 : getAccessibleName(void)
176 : throw (::com::sun::star::uno::RuntimeException);
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(void)
182 : throw (::com::sun::star::uno::RuntimeException);
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(void)
188 : throw (::com::sun::star::uno::RuntimeException);
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(void)
195 : throw (::com::sun::star::uno::RuntimeException,
196 : ::com::sun::star::accessibility::IllegalAccessibleComponentStateException);
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);
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);
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);
221 :
222 : virtual void SAL_CALL
223 : notifyEvent(
224 : const ::com::sun::star::accessibility::AccessibleEventObject& aEvent )
225 : throw (::com::sun::star::uno::RuntimeException);
226 :
227 : ///===== XServiceInfo ====================================================
228 :
229 : /** Returns an identifier for the implementation of this object.
230 : */
231 : virtual ::rtl::OUString SAL_CALL
232 : getImplementationName(void)
233 : throw (::com::sun::star::uno::RuntimeException);
234 :
235 : /** Return whether the specified service is supported by this class.
236 : */
237 : virtual sal_Bool SAL_CALL
238 : supportsService(const ::rtl::OUString& sServiceName)
239 : throw (::com::sun::star::uno::RuntimeException);
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< ::rtl::OUString> SAL_CALL
245 : getSupportedServiceNames(void)
246 : throw (::com::sun::star::uno::RuntimeException);
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);
254 :
255 : /** Returns a implementation id.
256 : */
257 : virtual ::com::sun::star::uno::Sequence<sal_Int8> SAL_CALL
258 : getImplementationId(void)
259 : throw (::com::sun::star::uno::RuntimeException);
260 :
261 : protected:
262 : /// Return this object's description.
263 : virtual ::rtl::OUString SAL_CALL
264 : createAccessibleDescription(void)
265 : throw (::com::sun::star::uno::RuntimeException);
266 :
267 : /// Return the object's current name.
268 : virtual ::rtl::OUString SAL_CALL
269 : createAccessibleName(void)
270 : throw (::com::sun::star::uno::RuntimeException);
271 :
272 : /// Return the object's current bounding box relative to the desktop.
273 : virtual Rectangle GetBoundingBoxOnScreen(void) const
274 : throw (::com::sun::star::uno::RuntimeException);
275 :
276 : /// Return the object's current bounding box relative to the parent object.
277 : virtual Rectangle GetBoundingBox(void) const
278 : throw (::com::sun::star::uno::RuntimeException);
279 :
280 : public:
281 : /// Calls all Listener to tell they the change.
282 : void
283 : CommitChange(const com::sun::star::accessibility::AccessibleEventObject& rEvent) const;
284 :
285 : /// change the name and call the listener to tell they the change
286 : void
287 : ChangeName();
288 :
289 : protected:
290 : /// Calls all FocusListener to tell they that the focus is gained.
291 : void CommitFocusGained() const;
292 :
293 : /// Calls all FocusListener to tell they that the focus is lost.
294 : void CommitFocusLost() const;
295 :
296 0 : sal_Bool IsDefunc() const { return rBHelper.bDisposed; }
297 :
298 : virtual void IsObjectValid() const
299 : throw (::com::sun::star::lang::DisposedException);
300 :
301 : /// Use this method to set initial Name without notification
302 0 : void SetName(const rtl::OUString& rName) { msName = rName; }
303 : /// Use this method to set initial Description without notification
304 0 : void SetDescription(const rtl::OUString& rDesc) { msDescription = rDesc; }
305 :
306 : /// Reference to the parent object.
307 : ::com::sun::star::uno::Reference<
308 : ::com::sun::star::accessibility::XAccessible> mxParent;
309 :
310 : private:
311 : /** Description of this object. This is not a constant because it can
312 : be set from the outside. Furthermore, it changes according the the
313 : draw page's display mode.
314 : */
315 : ::rtl::OUString msDescription;
316 :
317 : /** Name of this object. It changes according the the draw page's
318 : display mode.
319 : */
320 : ::rtl::OUString msName;
321 :
322 : /// client id in the AccessibleEventNotifier queue
323 : sal_uInt32 mnClientId;
324 :
325 : /** This is the role of this object.
326 : */
327 : sal_Int16 maRole;
328 : };
329 :
330 :
331 : #endif
332 :
333 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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