#ifndef visible_units_h
#define visible_units_h
#include "Document.h"
#include "TextAffinity.h"
namespace WebCore {
class VisiblePosition;
enum EWordSide { RightWordIfOnBoundary = false, LeftWordIfOnBoundary = true };
VisiblePosition startOfWord(const VisiblePosition &, EWordSide = RightWordIfOnBoundary);
VisiblePosition endOfWord(const VisiblePosition &, EWordSide = RightWordIfOnBoundary);
VisiblePosition previousWordPosition(const VisiblePosition &);
VisiblePosition nextWordPosition(const VisiblePosition &);
VisiblePosition startOfSentence(const VisiblePosition &);
VisiblePosition endOfSentence(const VisiblePosition &);
VisiblePosition previousSentencePosition(const VisiblePosition &);
VisiblePosition nextSentencePosition(const VisiblePosition &);
VisiblePosition startOfLine(const VisiblePosition &);
VisiblePosition endOfLine(const VisiblePosition &);
VisiblePosition previousLinePosition(const VisiblePosition &, int x);
VisiblePosition nextLinePosition(const VisiblePosition &, int x);
bool inSameLine(const VisiblePosition &, const VisiblePosition &);
bool inSameLogicalLine(const VisiblePosition &, const VisiblePosition &);
bool isStartOfLine(const VisiblePosition &);
bool isEndOfLine(const VisiblePosition &);
VisiblePosition logicalStartOfLine(const VisiblePosition &);
VisiblePosition logicalEndOfLine(const VisiblePosition &);
VisiblePosition startOfParagraph(const VisiblePosition&);
VisiblePosition endOfParagraph(const VisiblePosition&);
VisiblePosition startOfNextParagraph(const VisiblePosition&);
VisiblePosition previousParagraphPosition(const VisiblePosition &, int x);
VisiblePosition nextParagraphPosition(const VisiblePosition &, int x);
bool inSameParagraph(const VisiblePosition &, const VisiblePosition &);
bool isStartOfParagraph(const VisiblePosition &);
bool isEndOfParagraph(const VisiblePosition &);
VisiblePosition startOfBlock(const VisiblePosition &);
VisiblePosition endOfBlock(const VisiblePosition &);
bool inSameBlock(const VisiblePosition &, const VisiblePosition &);
bool isStartOfBlock(const VisiblePosition &);
bool isEndOfBlock(const VisiblePosition &);
VisiblePosition startOfDocument(const Node*);
VisiblePosition endOfDocument(const Node*);
VisiblePosition startOfDocument(const VisiblePosition &);
VisiblePosition endOfDocument(const VisiblePosition &);
bool inSameDocument(const VisiblePosition &, const VisiblePosition &);
bool isStartOfDocument(const VisiblePosition &);
bool isEndOfDocument(const VisiblePosition &);
VisiblePosition startOfEditableContent(const VisiblePosition&);
VisiblePosition endOfEditableContent(const VisiblePosition&);
}
#endif // VisiblePosition_h