Eliminate class TextCheckingHelper

third_party/WebKit/Source/core/editing/spellcheck/TextCheckingHelper.h

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