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1 /* | |
2 * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved. | |
3 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) | |
4 * | |
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. | |
9 * | |
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. | |
14 * | |
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. | |
19 */ | |
20 | |
21 #ifndef TextCheckingHelper_h | |
22 #define TextCheckingHelper_h | |
23 | |
24 #include "core/editing/Position.h" | |
25 #include "platform/heap/Handle.h" | |
26 #include "platform/text/TextChecking.h" | |
27 #include "wtf/text/WTFString.h" | |
28 | |
29 namespace blink { | |
30 | |
31 class ExceptionState; | |
32 class LocalFrame; | |
33 class Range; | |
34 class SpellCheckerClient; | |
35 class TextCheckerClient; | |
36 struct TextCheckingResult; | |
37 | |
38 class TextCheckingParagraph { | |
39 STACK_ALLOCATED(); | |
40 public: | |
41 explicit TextCheckingParagraph(PassRefPtrWillBeRawPtr<Range> checkingRange); | |
42 TextCheckingParagraph(PassRefPtrWillBeRawPtr<Range> checkingRange, PassRefPt
rWillBeRawPtr<Range> paragraphRange); | |
43 ~TextCheckingParagraph(); | |
44 | |
45 int rangeLength() const; | |
46 PassRefPtrWillBeRawPtr<Range> subrange(int characterOffset, int characterCou
nt) const; | |
47 int offsetTo(const Position&, ExceptionState&) const; | |
48 void expandRangeToNextEnd(); | |
49 | |
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 te
xt().substring(pos, len); } | |
53 UChar textCharAt(int index) const { return text()[static_cast<unsigned>(inde
x)]; } | |
54 | |
55 bool isEmpty() const; | |
56 bool isTextEmpty() const { return text().isEmpty(); } | |
57 bool isRangeEmpty() const { return checkingStart() >= checkingEnd(); } | |
58 | |
59 int checkingStart() const; | |
60 int checkingEnd() const; | |
61 int checkingLength() const; | |
62 | |
63 bool checkingRangeCovers(int location, int length) const { return location <
checkingEnd() && location + length > checkingStart(); } | |
64 PassRefPtrWillBeRawPtr<Range> paragraphRange() const; | |
65 PassRefPtrWillBeRawPtr<Range> checkingRange() const { return m_checkingRange
; } | |
66 | |
67 private: | |
68 void invalidateParagraphRangeValues(); | |
69 PassRefPtrWillBeRawPtr<Range> offsetAsRange() const; | |
70 | |
71 RefPtrWillBeMember<Range> m_checkingRange; | |
72 mutable RefPtrWillBeMember<Range> m_paragraphRange; | |
73 mutable RefPtrWillBeMember<Range> m_offsetAsRange; | |
74 mutable String m_text; | |
75 mutable int m_checkingStart; | |
76 mutable int m_checkingEnd; | |
77 mutable int m_checkingLength; | |
78 }; | |
79 | |
80 class TextCheckingHelper { | |
81 WTF_MAKE_NONCOPYABLE(TextCheckingHelper); | |
82 STACK_ALLOCATED(); | |
83 public: | |
84 TextCheckingHelper(SpellCheckerClient&, const Position& start, const Positio
n& end); | |
85 ~TextCheckingHelper(); | |
86 | |
87 String findFirstMisspelling(int& firstMisspellingOffset, bool markAll, RefPt
rWillBeRawPtr<Range>& firstMisspellingRange); | |
88 String findFirstMisspellingOrBadGrammar(bool checkGrammar, bool& outIsSpelli
ng, int& outFirstFoundOffset, GrammarDetail& outGrammarDetail); | |
89 String findFirstBadGrammar(GrammarDetail& outGrammarDetail, int& outGrammarP
hraseOffset, bool markAll); | |
90 void markAllMisspellings(RefPtrWillBeRawPtr<Range>& firstMisspellingRange); | |
91 void markAllBadGrammar(); | |
92 | |
93 private: | |
94 SpellCheckerClient* m_client; | |
95 Position m_start; | |
96 Position m_end; | |
97 | |
98 int findFirstGrammarDetail(const Vector<GrammarDetail>& grammarDetails, int
badGrammarPhraseLocation, int startOffset, int endOffset, bool markAll) const; | |
99 bool unifiedTextCheckerEnabled() const; | |
100 }; | |
101 | |
102 void checkTextOfParagraph(TextCheckerClient&, const String&, TextCheckingTypeMas
k, Vector<TextCheckingResult>&); | |
103 void expandRangeToSentenceBoundary(Range&); | |
104 bool unifiedTextCheckerEnabled(const LocalFrame*); | |
105 | |
106 } // namespace blink | |
107 | |
108 #endif // TextCheckingHelper_h | |
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