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109 lines
4.1 KiB
C++
109 lines
4.1 KiB
C++
/*
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* Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
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* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef SKY_ENGINE_CORE_EDITING_TEXTCHECKINGHELPER_H_
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#define SKY_ENGINE_CORE_EDITING_TEXTCHECKINGHELPER_H_
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#include "sky/engine/platform/heap/Handle.h"
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#include "sky/engine/platform/text/TextChecking.h"
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#include "sky/engine/wtf/text/WTFString.h"
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namespace blink {
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class ExceptionState;
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class LocalFrame;
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class Range;
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class Position;
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class SpellCheckerClient;
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class TextCheckerClient;
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struct TextCheckingResult;
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class TextCheckingParagraph {
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STACK_ALLOCATED();
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public:
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explicit TextCheckingParagraph(PassRefPtr<Range> checkingRange);
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TextCheckingParagraph(PassRefPtr<Range> checkingRange, PassRefPtr<Range> paragraphRange);
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~TextCheckingParagraph();
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int rangeLength() const;
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PassRefPtr<Range> subrange(int characterOffset, int characterCount) const;
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int offsetTo(const Position&, ExceptionState&) const;
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void expandRangeToNextEnd();
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const String& text() const;
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// Why not let clients call these functions on text() themselves?
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String textSubstring(unsigned pos, unsigned len = INT_MAX) const { return text().substring(pos, len); }
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UChar textCharAt(int index) const { return text()[static_cast<unsigned>(index)]; }
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bool isEmpty() const;
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bool isTextEmpty() const { return text().isEmpty(); }
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bool isRangeEmpty() const { return checkingStart() >= checkingEnd(); }
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int checkingStart() const;
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int checkingEnd() const;
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int checkingLength() const;
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String checkingSubstring() const { return textSubstring(checkingStart(), checkingLength()); }
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bool checkingRangeCovers(int location, int length) const { return location < checkingEnd() && location + length > checkingStart(); }
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PassRefPtr<Range> paragraphRange() const;
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PassRefPtr<Range> checkingRange() const { return m_checkingRange; }
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private:
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void invalidateParagraphRangeValues();
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PassRefPtr<Range> offsetAsRange() const;
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RefPtr<Range> m_checkingRange;
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mutable RefPtr<Range> m_paragraphRange;
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mutable RefPtr<Range> m_offsetAsRange;
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mutable String m_text;
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mutable int m_checkingStart;
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mutable int m_checkingEnd;
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mutable int m_checkingLength;
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};
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class TextCheckingHelper {
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WTF_MAKE_NONCOPYABLE(TextCheckingHelper);
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STACK_ALLOCATED();
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public:
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TextCheckingHelper(SpellCheckerClient&, PassRefPtr<Range>);
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~TextCheckingHelper();
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String findFirstMisspelling(int& firstMisspellingOffset, bool markAll, RefPtr<Range>& firstMisspellingRange);
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String findFirstMisspellingOrBadGrammar(bool checkGrammar, bool& outIsSpelling, int& outFirstFoundOffset, GrammarDetail& outGrammarDetail);
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String findFirstBadGrammar(GrammarDetail& outGrammarDetail, int& outGrammarPhraseOffset, bool markAll);
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void markAllMisspellings(RefPtr<Range>& firstMisspellingRange);
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void markAllBadGrammar();
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private:
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SpellCheckerClient* m_client;
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RefPtr<Range> m_range;
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int findFirstGrammarDetail(const Vector<GrammarDetail>& grammarDetails, int badGrammarPhraseLocation, int startOffset, int endOffset, bool markAll) const;
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bool unifiedTextCheckerEnabled() const;
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};
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void checkTextOfParagraph(TextCheckerClient&, const String&, TextCheckingTypeMask, Vector<TextCheckingResult>&);
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bool unifiedTextCheckerEnabled(const LocalFrame*);
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} // namespace blink
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#endif // SKY_ENGINE_CORE_EDITING_TEXTCHECKINGHELPER_H_
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