2 * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
3 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
21 #ifndef TextCheckingHelper_h
22 #define TextCheckingHelper_h
24 #include "platform/heap/Handle.h"
25 #include "platform/text/TextChecking.h"
26 #include "wtf/text/WTFString.h"
34 class SpellCheckerClient;
35 class TextCheckerClient;
36 struct TextCheckingResult;
38 class TextCheckingParagraph {
41 explicit TextCheckingParagraph(PassRefPtrWillBeRawPtr<Range> checkingRange);
42 TextCheckingParagraph(PassRefPtrWillBeRawPtr<Range> checkingRange, PassRefPtrWillBeRawPtr<Range> paragraphRange);
43 ~TextCheckingParagraph();
45 int rangeLength() const;
46 PassRefPtrWillBeRawPtr<Range> subrange(int characterOffset, int characterCount) const;
47 int offsetTo(const Position&, ExceptionState&) const;
48 void expandRangeToNextEnd();
50 const String& text() const;
51 // Why not let clients call these functions on text() themselves?
52 String textSubstring(unsigned pos, unsigned len = INT_MAX) const { return text().substring(pos, len); }
53 UChar textCharAt(int index) const { return text()[static_cast<unsigned>(index)]; }
56 bool isTextEmpty() const { return text().isEmpty(); }
57 bool isRangeEmpty() const { return checkingStart() >= checkingEnd(); }
59 int checkingStart() const;
60 int checkingEnd() const;
61 int checkingLength() const;
62 String checkingSubstring() const { return textSubstring(checkingStart(), checkingLength()); }
64 bool checkingRangeCovers(int location, int length) const { return location < checkingEnd() && location + length > checkingStart(); }
65 PassRefPtrWillBeRawPtr<Range> paragraphRange() const;
66 PassRefPtrWillBeRawPtr<Range> checkingRange() const { return m_checkingRange; }
69 void invalidateParagraphRangeValues();
70 PassRefPtrWillBeRawPtr<Range> offsetAsRange() const;
72 RefPtrWillBeMember<Range> m_checkingRange;
73 mutable RefPtrWillBeMember<Range> m_paragraphRange;
74 mutable RefPtrWillBeMember<Range> m_offsetAsRange;
75 mutable String m_text;
76 mutable int m_checkingStart;
77 mutable int m_checkingEnd;
78 mutable int m_checkingLength;
81 class TextCheckingHelper {
82 WTF_MAKE_NONCOPYABLE(TextCheckingHelper);
85 TextCheckingHelper(SpellCheckerClient&, PassRefPtrWillBeRawPtr<Range>);
86 ~TextCheckingHelper();
88 String findFirstMisspelling(int& firstMisspellingOffset, bool markAll, RefPtrWillBeRawPtr<Range>& firstMisspellingRange);
89 String findFirstMisspellingOrBadGrammar(bool checkGrammar, bool& outIsSpelling, int& outFirstFoundOffset, GrammarDetail& outGrammarDetail);
90 String findFirstBadGrammar(GrammarDetail& outGrammarDetail, int& outGrammarPhraseOffset, bool markAll);
91 void markAllMisspellings(RefPtrWillBeRawPtr<Range>& firstMisspellingRange);
92 void markAllBadGrammar();
95 SpellCheckerClient* m_client;
96 RefPtrWillBeMember<Range> m_range;
98 int findFirstGrammarDetail(const Vector<GrammarDetail>& grammarDetails, int badGrammarPhraseLocation, int startOffset, int endOffset, bool markAll) const;
99 bool unifiedTextCheckerEnabled() const;
102 void checkTextOfParagraph(TextCheckerClient&, const String&, TextCheckingTypeMask, Vector<TextCheckingResult>&);
104 bool unifiedTextCheckerEnabled(const LocalFrame*);
106 } // namespace WebCore
108 #endif // TextCheckingHelper_h