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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 : #ifndef _ACCMAP_HXX
20 : #define _ACCMAP_HXX
21 :
22 : #include <cppuhelper/weakref.hxx>
23 : #include <com/sun/star/accessibility/XAccessible.hpp>
24 : #include <rtl/ref.hxx>
25 : #include <osl/mutex.hxx>
26 : #include <svx/IAccessibleViewForwarder.hxx>
27 : #include <svx/IAccessibleParent.hxx>
28 : #include <tools/fract.hxx>
29 :
30 : #include <vector>
31 :
32 : class ViewShell;
33 : class Rectangle;
34 : class SwFrm;
35 : class SwTxtFrm;
36 : class SwPageFrm;
37 : class SwAccessibleContext;
38 : class SwAccessibleContextMap_Impl;
39 : class SwAccessibleEventList_Impl;
40 : class SwAccessibleEventMap_Impl;
41 : class SwShapeList_Impl;
42 : class SdrObject;
43 : namespace accessibility {
44 : class AccessibleShape;
45 : }
46 : class SwAccessibleShapeMap_Impl;
47 : struct SwAccessibleEvent_Impl;
48 : class SwAccessibleSelectedParas_Impl;
49 : class SwRect;
50 : class MapMode;
51 : class SwAccPreviewData;
52 : struct PrevwPage;
53 : class Window;
54 :
55 : // real states for events
56 : #define ACC_STATE_EDITABLE 0x01
57 : #define ACC_STATE_OPAQUE 0x02
58 :
59 : // pseudo states for events
60 : #define ACC_STATE_TEXT_ATTRIBUTE_CHANGED 0x0200
61 : #define ACC_STATE_TEXT_SELECTION_CHANGED 0x0100
62 : #define ACC_STATE_CARET 0x80
63 : #define ACC_STATE_RELATION_FROM 0x40
64 : #define ACC_STATE_RELATION_TO 0x20
65 :
66 : #define ACC_STATE_RELATION_MASK 0x60
67 :
68 : #define ACC_STATE_MASK 0x1F
69 :
70 : typedef sal_uInt16 tAccessibleStates;
71 :
72 : class SwAccessibleMap : public accessibility::IAccessibleViewForwarder,
73 : public accessibility::IAccessibleParent
74 : {
75 : mutable ::osl::Mutex maMutex;
76 : ::osl::Mutex maEventMutex;
77 : SwAccessibleContextMap_Impl *mpFrmMap;
78 : SwAccessibleShapeMap_Impl *mpShapeMap;
79 : SwShapeList_Impl *mpShapes;
80 : SwAccessibleEventList_Impl *mpEvents;
81 : SwAccessibleEventMap_Impl *mpEventMap;
82 : // #i27301 data structure to keep information about
83 : // accessible paragraph, which have a selection.
84 : SwAccessibleSelectedParas_Impl* mpSelectedParas;
85 : ViewShell *mpVSh;
86 : /// for page preview: store preview data, VisArea, and mapping of
87 : /// preview-to-display coordinates
88 : SwAccPreviewData* mpPreview;
89 :
90 : ::com::sun::star::uno::WeakReference < ::com::sun::star::accessibility::XAccessible > mxCursorContext;
91 :
92 : sal_Int32 mnPara;
93 : sal_Int32 mnFootnote;
94 : sal_Int32 mnEndnote;
95 :
96 :
97 : bool mbShapeSelected;
98 :
99 : void FireEvent( const SwAccessibleEvent_Impl& rEvent );
100 :
101 : void AppendEvent( const SwAccessibleEvent_Impl& rEvent );
102 :
103 : void InvalidateCursorPosition(
104 : const ::com::sun::star::uno::Reference<
105 : ::com::sun::star::accessibility::XAccessible>& rAcc );
106 : void DoInvalidateShapeSelection();
107 : void DoInvalidateShapeFocus();
108 : void InvalidateShapeSelection();
109 :
110 : void _InvalidateRelationSet( const SwFrm* pFrm, bool bFrom );
111 :
112 : ::com::sun::star::uno::Reference<
113 : ::com::sun::star::accessibility::XAccessible>
114 : _GetDocumentView( bool bPagePreview );
115 :
116 : /** method to build up a new data structure of the accessible pararaphs,
117 : which have a selection
118 :
119 : Important note: method has to used inside a mutual exclusive section
120 :
121 : @author OD
122 : */
123 : SwAccessibleSelectedParas_Impl* _BuildSelectedParas();
124 :
125 : public:
126 :
127 : SwAccessibleMap( ViewShell *pSh );
128 : ~SwAccessibleMap();
129 :
130 : ::com::sun::star::uno::Reference<
131 : ::com::sun::star::accessibility::XAccessible> GetDocumentView();
132 :
133 : ::com::sun::star::uno::Reference<
134 : ::com::sun::star::accessibility::XAccessible> GetDocumentPreview(
135 : const std::vector<PrevwPage*>& _rPrevwPages,
136 : const Fraction& _rScale,
137 : const SwPageFrm* _pSelectedPageFrm,
138 : const Size& _rPrevwWinSize );
139 :
140 : ::rtl::Reference < SwAccessibleContext > GetContextImpl(
141 : const SwFrm *pFrm,
142 : sal_Bool bCreate = sal_True );
143 : ::com::sun::star::uno::Reference<
144 : ::com::sun::star::accessibility::XAccessible> GetContext(
145 : const SwFrm *pFrm,
146 : sal_Bool bCreate = sal_True );
147 :
148 : ::rtl::Reference < ::accessibility::AccessibleShape > GetContextImpl(
149 : const SdrObject *pObj,
150 : SwAccessibleContext *pParentImpl,
151 : sal_Bool bCreate = sal_True );
152 : ::com::sun::star::uno::Reference<
153 : ::com::sun::star::accessibility::XAccessible> GetContext(
154 : const SdrObject *pObj,
155 : SwAccessibleContext *pParentImpl,
156 : sal_Bool bCreate = sal_True );
157 :
158 0 : inline ViewShell* GetShell() const
159 : {
160 0 : return mpVSh;
161 : }
162 :
163 : const SwRect& GetVisArea() const;
164 :
165 : /** get size of a dedicated preview page
166 :
167 : @author OD
168 :
169 : @param _nPrevwPageNum
170 : input parameter - physical page number of page visible in the page preview
171 :
172 : @return an object of class <Size>
173 : */
174 : Size GetPreViewPageSize( sal_uInt16 _nPrevwPageNum ) const;
175 :
176 : void RemoveContext( const SwFrm *pFrm );
177 : void RemoveContext( const SdrObject *pObj );
178 :
179 : // Dispose frame and its children if bRecursive is set
180 : void Dispose( const SwFrm* pFrm,
181 : const SdrObject* pObj,
182 : Window* pWindow,
183 : sal_Bool bRecursive = sal_False );
184 :
185 : void InvalidatePosOrSize( const SwFrm* pFrm,
186 : const SdrObject* pObj,
187 : Window* pWindow,
188 : const SwRect& rOldFrm );
189 :
190 : void InvalidateContent( const SwFrm *pFrm );
191 :
192 : void InvalidateAttr( const SwTxtFrm& rTxtFrm );
193 :
194 : void InvalidateCursorPosition( const SwFrm *pFrm );
195 : void InvalidateFocus();
196 :
197 : void SetCursorContext(
198 : const ::rtl::Reference < SwAccessibleContext >& rCursorContext );
199 :
200 : // Invalidate state of whole tree. If an action is open, this call
201 : // is processed when the last action ends.
202 : void InvalidateStates( tAccessibleStates _nStates,
203 : const SwFrm* _pFrm = 0 );
204 :
205 : void InvalidateRelationSet( const SwFrm* pMaster, const SwFrm* pFollow );
206 :
207 : /** invalidation CONTENT_FLOWS_FROM/_TO relation of a paragraph
208 :
209 : @author OD
210 :
211 : @param _rTxtFrm
212 : input parameter - reference to paragraph, whose CONTENT_FLOWS_FROM/_TO
213 : has to be invalidated.
214 :
215 : @param _bFrom
216 : input parameter - boolean indicating, if relation CONTENT_FLOWS_FROM
217 : (value <true>) or CONTENT_FLOWS_TO (value <false>) has to be invalidated.
218 : */
219 : void InvalidateParaFlowRelation( const SwTxtFrm& _rTxtFrm,
220 : const bool _bFrom );
221 :
222 : /** invalidation of text selection of a paragraph
223 :
224 : @author OD
225 : */
226 : void InvalidateParaTextSelection( const SwTxtFrm& _rTxtFrm );
227 :
228 : /** invalidation of text selection of all paragraphs
229 :
230 : @author OD
231 : */
232 : void InvalidateTextSelectionOfAllParas();
233 :
234 : sal_Int32 GetChildIndex( const SwFrm& rParentFrm,
235 : Window& rChild ) const;
236 :
237 : // update preview data (and fire events if necessary)
238 : void UpdatePreview( const std::vector<PrevwPage*>& _rPrevwPages,
239 : const Fraction& _rScale,
240 : const SwPageFrm* _pSelectedPageFrm,
241 : const Size& _rPrevwWinSize );
242 :
243 : void InvalidatePreViewSelection( sal_uInt16 nSelPage );
244 : bool IsPageSelected( const SwPageFrm *pPageFrm ) const;
245 :
246 : void FireEvents();
247 :
248 :
249 : // IAccessibleViewForwarder
250 :
251 : virtual sal_Bool IsValid() const;
252 : virtual Rectangle GetVisibleArea() const;
253 : virtual Point LogicToPixel (const Point& rPoint) const;
254 : virtual Size LogicToPixel (const Size& rSize) const;
255 : virtual Point PixelToLogic (const Point& rPoint) const;
256 : virtual Size PixelToLogic (const Size& rSize) const;
257 :
258 : // IAccessibleParent
259 : virtual sal_Bool ReplaceChild (
260 : ::accessibility::AccessibleShape* pCurrentChild,
261 : const ::com::sun::star::uno::Reference< ::com::sun::star::drawing::XShape >& _rxShape,
262 : const long _nIndex,
263 : const ::accessibility::AccessibleShapeTreeInfo& _rShapeTreeInfo
264 : ) throw (::com::sun::star::uno::RuntimeException);
265 :
266 : // additional Core/Pixel conversions for internal use; also works
267 : // for preview
268 : Point PixelToCore (const Point& rPoint) const;
269 : Rectangle CoreToPixel (const Rectangle& rRect) const;
270 :
271 : private:
272 : /** get mapping mode for LogicToPixel and PixelToLogic conversions
273 :
274 : Replacement method <PreviewAdjust(..)> by new method <GetMapMode>.
275 : Method returns mapping mode of current output device and adjusts it,
276 : if the shell is in page/print preview.
277 : Necessary, because <PreviewAdjust(..)> changes mapping mode at current
278 : output device for mapping logic document positions to page preview window
279 : positions and vice versa and doesn't take care to recover its changes.
280 :
281 : @author OD
282 :
283 : @param _rPoint
284 : input parameter - constant reference to point to determine the mapping
285 : mode adjustments for page/print preview.
286 :
287 : @param _orMapMode
288 : output parameter - reference to the mapping mode, which is determined
289 : by the method
290 : */
291 : void GetMapMode( const Point& _rPoint,
292 : MapMode& _orMapMode ) const;
293 : };
294 : #endif
295 :
296 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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