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/text/TextChecking.h"
25 #include "wtf/text/WTFString.h"
33 class SpellCheckerClient;
34 class TextCheckerClient;
35 struct TextCheckingResult;
37 class TextCheckingParagraph {
39 explicit TextCheckingParagraph(PassRefPtr<Range> checkingRange);
40 TextCheckingParagraph(PassRefPtr<Range> checkingRange, PassRefPtr<Range> paragraphRange);
41 ~TextCheckingParagraph();
43 int rangeLength() const;
44 PassRefPtr<Range> subrange(int characterOffset, int characterCount) const;
45 int offsetTo(const Position&, ExceptionState&) const;
46 void expandRangeToNextEnd();
48 const String& text() const;
49 // Why not let clients call these functions on text() themselves?
50 String textSubstring(unsigned pos, unsigned len = INT_MAX) const { return text().substring(pos, len); }
51 UChar textCharAt(int index) const { return text()[static_cast<unsigned>(index)]; }
54 bool isTextEmpty() const { return text().isEmpty(); }
55 bool isRangeEmpty() const { return checkingStart() >= checkingEnd(); }
57 int checkingStart() const;
58 int checkingEnd() const;
59 int checkingLength() const;
60 String checkingSubstring() const { return textSubstring(checkingStart(), checkingLength()); }
62 bool checkingRangeCovers(int location, int length) const { return location < checkingEnd() && location + length > checkingStart(); }
63 PassRefPtr<Range> paragraphRange() const;
64 PassRefPtr<Range> checkingRange() const { return m_checkingRange; }
67 void invalidateParagraphRangeValues();
68 PassRefPtr<Range> offsetAsRange() const;
70 RefPtr<Range> m_checkingRange;
71 mutable RefPtr<Range> m_paragraphRange;
72 mutable RefPtr<Range> m_offsetAsRange;
73 mutable String m_text;
74 mutable int m_checkingStart;
75 mutable int m_checkingEnd;
76 mutable int m_checkingLength;
79 class TextCheckingHelper {
80 WTF_MAKE_NONCOPYABLE(TextCheckingHelper);
82 TextCheckingHelper(SpellCheckerClient&, PassRefPtr<Range>);
83 ~TextCheckingHelper();
85 String findFirstMisspelling(int& firstMisspellingOffset, bool markAll, RefPtr<Range>& firstMisspellingRange);
86 String findFirstMisspellingOrBadGrammar(bool checkGrammar, bool& outIsSpelling, int& outFirstFoundOffset, GrammarDetail& outGrammarDetail);
87 String findFirstBadGrammar(GrammarDetail& outGrammarDetail, int& outGrammarPhraseOffset, bool markAll);
88 void markAllMisspellings(RefPtr<Range>& firstMisspellingRange);
89 void markAllBadGrammar();
92 SpellCheckerClient* m_client;
93 RefPtr<Range> m_range;
95 int findFirstGrammarDetail(const Vector<GrammarDetail>& grammarDetails, int badGrammarPhraseLocation, int startOffset, int endOffset, bool markAll) const;
96 bool unifiedTextCheckerEnabled() const;
99 void checkTextOfParagraph(TextCheckerClient&, const String&, TextCheckingTypeMask, Vector<TextCheckingResult>&);
101 bool unifiedTextCheckerEnabled(const Frame*);
103 } // namespace WebCore
105 #endif // TextCheckingHelper_h