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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_SVX_FMSRCIMP_HXX
21 : #define INCLUDED_SVX_FMSRCIMP_HXX
22 :
23 : #include <svx/fmtools.hxx>
24 : #include <svx/svxdllapi.h>
25 :
26 : #include <com/sun/star/awt/XCheckBox.hpp>
27 : #include <com/sun/star/awt/XListBox.hpp>
28 : #include <com/sun/star/awt/XTextComponent.hpp>
29 : #include <com/sun/star/util/XNumberFormatsSupplier.hpp>
30 : #include <com/sun/star/util/XNumberFormatter.hpp>
31 :
32 : #include <cppuhelper/implbase1.hxx>
33 : #include <osl/mutex.hxx>
34 : #include <unotools/charclass.hxx>
35 : #include <unotools/collatorwrapper.hxx>
36 : #include <osl/thread.hxx>
37 :
38 : #include <deque>
39 : #include <vector>
40 :
41 : /**
42 : * class FmSearchThread
43 : */
44 : class FmSearchEngine;
45 0 : class FmSearchThread : public ::osl::Thread
46 : {
47 : FmSearchEngine* m_pEngine;
48 : Link m_aTerminationHdl;
49 :
50 : virtual void SAL_CALL run() SAL_OVERRIDE;
51 : virtual void SAL_CALL onTerminated() SAL_OVERRIDE;
52 :
53 : public:
54 0 : FmSearchThread(FmSearchEngine* pEngine) : m_pEngine(pEngine) { }
55 0 : void setTerminationHandler(Link aHdl) { m_aTerminationHdl = aHdl; }
56 : };
57 :
58 : /**
59 : * struct FmSearchProgress - the owner of SearchEngine receives this structure for status updates
60 : * (at the end of the search)
61 : */
62 0 : struct FmSearchProgress
63 : {
64 : enum STATE { STATE_PROGRESS, STATE_PROGRESS_COUNTING, STATE_CANCELED, STATE_SUCCESSFULL, STATE_NOTHINGFOUND, STATE_ERROR };
65 : // (move to new record; progress during counting of records; cancelled; record found; nothing found;
66 : // any non-processable error)
67 : STATE aSearchState;
68 :
69 : // current record - always valid (e.g. of interest for continuing search in case of cancellation)
70 : sal_uInt32 nCurrentRecord;
71 : // Overflow - only valid in case of STATE_PROGRESS
72 : bool bOverflow;
73 :
74 : // the position of the search cursor - valid in case of STATE_SUCCESSFULL, STATE_CANCELED and STATE_NOTHING_FOUND
75 : ::com::sun::star::uno::Any aBookmark;
76 : // the field, in which the text was found - valid in case of STATE_SUCCESSFULL
77 : sal_Int32 nFieldIndex;
78 : };
79 :
80 : /**
81 : * class FmRecordCountListener - utility class for FmSearchEngine, listens at a certain cursor and provides
82 : * the differences in RecordCount
83 : */
84 : class FmRecordCountListener : public ::cppu::WeakImplHelper1< ::com::sun::star::beans::XPropertyChangeListener>
85 : {
86 : // attribute
87 : Link m_lnkWhoWantsToKnow;
88 : ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet > m_xListening;
89 :
90 : // attribute access
91 : public:
92 : Link SetPropChangeHandler(const Link& lnk);
93 :
94 : // methods
95 : public:
96 : FmRecordCountListener(const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XResultSet >& dbcCursor);
97 : // the set has to support the sdb::ResultSet service
98 : virtual ~FmRecordCountListener();
99 :
100 : // DECLARE_UNO3_AGG_DEFAULTS(FmPropertyListener, UsrObject)
101 : // virtual sal_Bool queryInterface(::com::sun::star::uno::Uik aUik, ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& rOut);
102 :
103 : // ::com::sun::star::lang::XEventListener
104 : virtual void SAL_CALL disposing(const ::com::sun::star::lang::EventObject& Source) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
105 :
106 : // ::com::sun::star::beans::XPropertyChangeListener
107 : virtual void SAL_CALL propertyChange(const ::com::sun::star::beans::PropertyChangeEvent& evt) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
108 :
109 : void DisConnect();
110 :
111 : private:
112 : void NotifyCurrentCount();
113 :
114 : };
115 :
116 : /**
117 : * class FmSearchEngine - Impl class for FmSearchDialog
118 : */
119 : namespace svxform {
120 : // We have three possible control types we may search in, determined by the supported interfaces : ::com::sun::star::awt::XTextComponent,
121 : // ::com::sun::star::awt::XListBox, ::com::sun::star::awt::XCheckBox.
122 : // While searching we don't want to do this distinction for every control in every round. So we need some helpers.
123 : class ControlTextWrapper
124 : {
125 : // attributes
126 : ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > m_xControl;
127 : // attribute access
128 : public:
129 : ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > getControl() const{ return m_xControl; }
130 : public:
131 0 : ControlTextWrapper(const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _xControl) { m_xControl = _xControl; }
132 0 : virtual ~ControlTextWrapper() { }
133 :
134 : virtual OUString getCurrentText() const = 0;
135 : };
136 0 : class SimpleTextWrapper : public ControlTextWrapper
137 : {
138 : ::com::sun::star::uno::Reference< ::com::sun::star::awt::XTextComponent > m_xText;
139 : public:
140 : SimpleTextWrapper(const ::com::sun::star::uno::Reference< ::com::sun::star::awt::XTextComponent >& _xText);
141 : virtual OUString getCurrentText() const SAL_OVERRIDE;
142 : };
143 0 : class ListBoxWrapper : public ControlTextWrapper
144 : {
145 : ::com::sun::star::uno::Reference< ::com::sun::star::awt::XListBox > m_xBox;
146 : public:
147 : ListBoxWrapper(const ::com::sun::star::uno::Reference< ::com::sun::star::awt::XListBox >& _xBox);
148 : virtual OUString getCurrentText() const SAL_OVERRIDE;
149 : };
150 0 : class CheckBoxWrapper : public ControlTextWrapper
151 : {
152 : ::com::sun::star::uno::Reference< ::com::sun::star::awt::XCheckBox > m_xBox;
153 : public:
154 : CheckBoxWrapper(const ::com::sun::star::uno::Reference< ::com::sun::star::awt::XCheckBox >& _xBox);
155 : virtual OUString getCurrentText() const SAL_OVERRIDE;
156 : };
157 : }
158 :
159 : enum FMSEARCH_MODE { SM_BRUTE, SM_ALLOWSCHEDULE, SM_USETHREAD };
160 :
161 : typedef std::vector< ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface> > InterfaceArray;
162 :
163 : class SVX_DLLPUBLIC FmSearchEngine
164 : {
165 : friend class FmSearchThread;
166 :
167 : enum SEARCH_RESULT { SR_FOUND, SR_NOTFOUND, SR_ERROR, SR_CANCELED };
168 : enum SEARCHFOR_TYPE { SEARCHFOR_STRING, SEARCHFOR_NULL, SEARCHFOR_NOTNULL };
169 :
170 : CursorWrapper m_xSearchCursor;
171 : std::deque<sal_Int32> m_arrFieldMapping;
172 : // Since the iterator could have more columns, as managed here (in this field listbox),
173 : // a mapping of this ::com::sun::star::form keys on the indices of the respective columns is kept in the iterator
174 :
175 : // the formatter
176 : ::com::sun::star::uno::Reference< ::com::sun::star::util::XNumberFormatsSupplier > m_xFormatSupplier;
177 : ::com::sun::star::uno::Reference< ::com::sun::star::util::XNumberFormatter > m_xFormatter;
178 :
179 : CharClass m_aCharacterClassficator;
180 : CollatorWrapper m_aStringCompare;
181 :
182 : // the collection of all interesting fields (or their ::com::sun::star::data::XDatabaseVariant interfaces and FormatKeys)
183 0 : struct FieldInfo
184 : {
185 : ::com::sun::star::uno::Reference< ::com::sun::star::sdb::XColumn > xContents;
186 : sal_uInt32 nFormatKey;
187 : bool bDoubleHandling;
188 : };
189 :
190 : typedef std::vector<FieldInfo> FieldCollection;
191 : FieldCollection m_arrUsedFields;
192 : sal_Int32 m_nCurrentFieldIndex; // the last parameter of RebuildUsedFields, it allows checks in FormatField
193 :
194 : typedef std::vector<svxform::ControlTextWrapper*> ControlTextSuppliers;
195 : ControlTextSuppliers m_aControlTexts;
196 :
197 : bool m_bUsingTextComponents;
198 : CursorWrapper m_xOriginalIterator;
199 : CursorWrapper m_xClonedIterator;
200 :
201 : // Data for the decision in which field a "Found" is accepted
202 : ::com::sun::star::uno::Any m_aPreviousLocBookmark; // position of the last finding
203 : FieldCollection::iterator m_iterPreviousLocField; // field of the last finding
204 :
205 : // Communication with the thread that does the actual searching
206 : OUString m_strSearchExpression; // forward direction
207 : SEARCHFOR_TYPE m_eSearchForType; // ditto
208 : SEARCH_RESULT m_srResult; // backward direction
209 :
210 : // The link we broadcast the progress and the result to
211 : Link m_aProgressHandler;
212 : bool m_bSearchingCurrently : 1; // is an (asynchronous) search running?
213 : bool m_bCancelAsynchRequest : 1; // should be cancelled?
214 : ::osl::Mutex m_aCancelAsynchAccess; // access to_bCancelAsynchRequest (technically only
215 : // relevant for m_eMode == SM_USETHREAD)
216 : FMSEARCH_MODE m_eMode; // current mode
217 :
218 : // parameters for the search
219 : bool m_bFormatter : 1; // use field formatting
220 : bool m_bForward : 1; // direction
221 : bool m_bWildcard : 1; // wildcard search
222 : bool m_bRegular : 1; // regular expression
223 : bool m_bLevenshtein : 1; // Levenshtein search
224 : bool m_bTransliteration : 1; // Levenshtein search
225 :
226 : bool m_bLevRelaxed : 1; // parameters for Levenshtein search
227 : sal_uInt16 m_nLevOther;
228 : sal_uInt16 m_nLevShorter;
229 : sal_uInt16 m_nLevLonger;
230 :
231 : sal_uInt16 m_nPosition; // if not regular or levenshtein, then one of the MATCHING_... values
232 :
233 : sal_Int32 m_nTransliterationFlags;
234 :
235 :
236 : // member access
237 : private:
238 : SVX_DLLPRIVATE bool CancelRequested(); // provides a through m_aCancelAsynchAccess backed interpretation of m_bCancelAsynchRequest
239 :
240 : public:
241 : void SetCaseSensitive(bool bSet);
242 : bool GetCaseSensitive() const;
243 :
244 : void SetFormatterUsing(bool bSet); // this is somewhat more extensive, so no inline ... here
245 0 : bool GetFormatterUsing() const { return m_bFormatter; }
246 :
247 0 : void SetDirection(bool bForward) { m_bForward = bForward; }
248 0 : bool GetDirection() const { return m_bForward; }
249 :
250 0 : void SetWildcard(bool bSet) { m_bWildcard = bSet; }
251 0 : bool GetWildcard() const { return m_bWildcard; }
252 :
253 0 : void SetRegular(bool bSet) { m_bRegular = bSet; }
254 0 : bool GetRegular() const { return m_bRegular; }
255 :
256 0 : void SetLevenshtein(bool bSet) { m_bLevenshtein = bSet; }
257 0 : bool GetLevenshtein() const { return m_bLevenshtein; }
258 :
259 : void SetIgnoreWidthCJK(bool bSet);
260 : bool GetIgnoreWidthCJK() const;
261 :
262 0 : void SetTransliteration(bool bSet) { m_bTransliteration = bSet; }
263 0 : bool GetTransliteration() const { return m_bTransliteration; }
264 :
265 0 : void SetLevRelaxed(bool bSet) { m_bLevRelaxed = bSet; }
266 0 : bool GetLevRelaxed() const { return m_bLevRelaxed; }
267 0 : void SetLevOther(sal_uInt16 nHowMuch) { m_nLevOther = nHowMuch; }
268 0 : sal_uInt16 GetLevOther() const { return m_nLevOther; }
269 0 : void SetLevShorter(sal_uInt16 nHowMuch) { m_nLevShorter = nHowMuch; }
270 0 : sal_uInt16 GetLevShorter() const { return m_nLevShorter; }
271 0 : void SetLevLonger(sal_uInt16 nHowMuch) { m_nLevLonger = nHowMuch; }
272 0 : sal_uInt16 GetLevLonger() const { return m_nLevLonger; }
273 : // all Lev. values will only be considered in case of m_bLevenshtein==sal_True
274 :
275 0 : void SetTransliterationFlags(sal_Int32 _nFlags) { m_nTransliterationFlags = _nFlags; }
276 0 : sal_Int32 GetTransliterationFlags() const { return m_nTransliterationFlags; }
277 :
278 0 : void SetPosition(sal_uInt16 nValue) { m_nPosition = nValue; }
279 0 : sal_uInt16 GetPosition() const { return m_nPosition; }
280 : // position will be ignored in case of m_bWildCard==sal_True
281 :
282 0 : FMSEARCH_MODE GetSearchMode() const { return m_eMode; }
283 :
284 : public:
285 : /** two constructs, both analogical to FmSearchDialog, therefore look this up for explanations ....
286 : xCursor has to implement ::com::sun::star::data::DatabaseCursor service each time.
287 : If eMode == SM_USETHREAD, a ProgressHandler should be set, because in this case the result forwarding will be done
288 : by this handler.
289 : If eMode != SM_USETHREAD, SearchNext and StarOver won't return, until the search has finished (independently of its
290 : success), only then the result can be requested. If additionally the ProgressHandler is set, it will be called for
291 : every record as well as at the end of the search.
292 : */
293 : FmSearchEngine(
294 : const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& _rxContext,
295 : const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XResultSet >& xCursor,
296 : const OUString& strVisibleFields,
297 : const ::com::sun::star::uno::Reference< ::com::sun::star::util::XNumberFormatsSupplier >& xFormat,
298 : FMSEARCH_MODE eMode);
299 : FmSearchEngine(
300 : const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& _rxContext,
301 : const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XResultSet >& xCursor,
302 : const OUString& strVisibleFields,
303 : const InterfaceArray& arrFields,
304 : FMSEARCH_MODE eMode);
305 :
306 : virtual ~FmSearchEngine();
307 :
308 : /** the link will be called on every record and after the completion of the search, the parameter is a pointer to
309 : a FmSearchProgress structure
310 : the handler should be in any case thread-safe
311 : */
312 0 : void SetProgressHandler(Link aHdl) { m_aProgressHandler = aHdl; }
313 :
314 : /// search for the next appearance (for nDirection values check DIRECTION_*-defines)
315 : void SearchNext(const OUString& strExpression);
316 : /// analogous, search for "NULL" (_bSearchForNull==sal_True) or "not NULL"
317 : void SearchNextSpecial(bool _bSearchForNull);
318 : /// search for the next appearance, dependent on nDirection from the start or end
319 : void StartOver(const OUString& strExpression);
320 : /// analogous, search for "NULL" (_bSearchForNull==sal_True) or "not NULL"
321 : void StartOverSpecial(bool _bSearchForNull);
322 : /// invalidate previous search reference
323 : void InvalidatePreviousLoc();
324 :
325 : /** rebuilds m_arrUsedFields (nFieldIndex==-1 means all fields, otherwise it specifies the field index)
326 : if bForce is not set, nothing will happen in case of nFieldIndex == m_nCurrentFieldIndex
327 : (calls InvalidatePreviousLoc)
328 : */
329 : void RebuildUsedFields(sal_Int32 nFieldIndex, bool bForce = false);
330 : OUString FormatField(sal_Int32 nWhich);
331 :
332 : /// returns directly; once it was really aborted, ProgressHandler is called with STATE_CANCELED
333 : void CancelSearch();
334 :
335 : /** only valid, if not an (asynchronous) search is running, the next search will then be executed
336 : on top of the new iterator with the new parameter
337 : */
338 : bool SwitchToContext(const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XResultSet >& xCursor, const OUString& strVisibleFields, const InterfaceArray& arrFields,
339 : sal_Int32 nFieldIndex);
340 :
341 : protected:
342 : void Init(const OUString& strVisibleFields);
343 :
344 : void SearchNextImpl();
345 : // this Impl method is running in SearchThread
346 :
347 : // start a thread-search (or call SearchNextImpl directly, depending on the search mode)
348 : void ImplStartNextSearch();
349 :
350 : private:
351 : SVX_DLLPRIVATE void clearControlTexts();
352 : SVX_DLLPRIVATE void fillControlTexts(const InterfaceArray& arrFields);
353 :
354 : // three methods implementing a complete search loop (null/not null, wildcard, SearchText)
355 : // (they all have some code in common, but with this solution we have do do a distinction only once per search (before
356 : // starting the loop), not in every loop step
357 : SVX_DLLPRIVATE SEARCH_RESULT SearchSpecial(bool _bSearchForNull, sal_Int32& nFieldPos, FieldCollection::iterator& iterFieldLoop,
358 : const FieldCollection::iterator& iterBegin, const FieldCollection::iterator& iterEnd);
359 : SVX_DLLPRIVATE SEARCH_RESULT SearchWildcard(const OUString& strExpression, sal_Int32& nFieldPos, FieldCollection::iterator& iterFieldLoop,
360 : const FieldCollection::iterator& iterBegin, const FieldCollection::iterator& iterEnd);
361 : SVX_DLLPRIVATE SEARCH_RESULT SearchRegularApprox(const OUString& strExpression, sal_Int32& nFieldPos, FieldCollection::iterator& iterFieldLoop,
362 : const FieldCollection::iterator& iterBegin, const FieldCollection::iterator& iterEnd);
363 :
364 : SVX_DLLPRIVATE void PropagateProgress(bool _bDontPropagateOverflow);
365 : // call the ProgressHandler with STATE_PROGRESS and the current position of the search iterator
366 :
367 : // helpers, that are needed several times
368 : SVX_DLLPRIVATE bool MoveCursor();
369 : // moves m_xSearchIterator with respect to direction/overflow cursor
370 : SVX_DLLPRIVATE bool MoveField(sal_Int32& nPos, FieldCollection::iterator& iter, const FieldCollection::iterator& iterBegin, const FieldCollection::iterator& iterEnd);
371 : // moves the iterator with respect to the direction/overflow iterator/overflow cursor
372 : SVX_DLLPRIVATE void BuildAndInsertFieldInfo(const ::com::sun::star::uno::Reference< ::com::sun::star::container::XIndexAccess >& xAllFields, sal_Int32 nField);
373 : // builds a FieldInfo in relation to field number nField (in xAllFields) and adds it to m_arrUsedFields
374 : // xAllFields needs to support the DatabaseRecord service
375 : SVX_DLLPRIVATE OUString FormatField(const FieldInfo& rField);
376 : // formats the field with the NumberFormatter
377 :
378 0 : SVX_DLLPRIVATE bool HasPreviousLoc() { return m_aPreviousLocBookmark.hasValue(); }
379 :
380 : DECL_LINK(OnSearchTerminated, FmSearchThread*);
381 : // is used by SearchThread, after the return from this handler the thread removes itself
382 : DECL_LINK(OnNewRecordCount, void*);
383 : };
384 :
385 : #endif // INCLUDED_SVX_FMSRCIMP_HXX
386 :
387 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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