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26 #ifndef VisibleUnits_h
27 #define VisibleUnits_h
29 #include "core/editing/EditingBoundary.h"
30 #include "platform/text/TextDirection.h"
35 class PositionWithAffinity;
38 class VisiblePosition;
40 enum EWordSide { RightWordIfOnBoundary = false, LeftWordIfOnBoundary = true };
43 VisiblePosition startOfWord(const VisiblePosition &, EWordSide = RightWordIfOnBoundary);
44 VisiblePosition endOfWord(const VisiblePosition &, EWordSide = RightWordIfOnBoundary);
45 VisiblePosition previousWordPosition(const VisiblePosition &);
46 VisiblePosition nextWordPosition(const VisiblePosition &);
47 VisiblePosition rightWordPosition(const VisiblePosition&, bool skipsSpaceWhenMovingRight);
48 VisiblePosition leftWordPosition(const VisiblePosition&, bool skipsSpaceWhenMovingRight);
51 VisiblePosition startOfSentence(const VisiblePosition &);
52 VisiblePosition endOfSentence(const VisiblePosition &);
53 VisiblePosition previousSentencePosition(const VisiblePosition &);
54 VisiblePosition nextSentencePosition(const VisiblePosition &);
57 VisiblePosition startOfLine(const VisiblePosition &);
58 VisiblePosition endOfLine(const VisiblePosition &);
59 VisiblePosition previousLinePosition(const VisiblePosition&, int lineDirectionPoint, EditableType = ContentIsEditable);
60 VisiblePosition nextLinePosition(const VisiblePosition&, int lineDirectionPoint, EditableType = ContentIsEditable);
61 bool inSameLine(const VisiblePosition &, const VisiblePosition &);
62 bool isStartOfLine(const VisiblePosition &);
63 bool isEndOfLine(const VisiblePosition &);
64 VisiblePosition logicalStartOfLine(const VisiblePosition &);
65 VisiblePosition logicalEndOfLine(const VisiblePosition &);
66 bool isLogicalEndOfLine(const VisiblePosition &);
67 VisiblePosition leftBoundaryOfLine(const VisiblePosition&, TextDirection);
68 VisiblePosition rightBoundaryOfLine(const VisiblePosition&, TextDirection);
70 // paragraphs (perhaps a misnomer, can be divided by line break elements)
71 VisiblePosition startOfParagraph(const VisiblePosition&, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
72 VisiblePosition endOfParagraph(const VisiblePosition&, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
73 VisiblePosition startOfNextParagraph(const VisiblePosition&);
74 VisiblePosition previousParagraphPosition(const VisiblePosition &, int x);
75 VisiblePosition nextParagraphPosition(const VisiblePosition &, int x);
76 bool isStartOfParagraph(const VisiblePosition &, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
77 bool isEndOfParagraph(const VisiblePosition &, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
78 bool inSameParagraph(const VisiblePosition &, const VisiblePosition &, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
80 // blocks (true paragraphs; line break elements don't break blocks)
81 VisiblePosition startOfBlock(const VisiblePosition &, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
82 VisiblePosition endOfBlock(const VisiblePosition &, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
83 bool inSameBlock(const VisiblePosition &, const VisiblePosition &);
84 bool isStartOfBlock(const VisiblePosition &);
85 bool isEndOfBlock(const VisiblePosition &);
88 VisiblePosition startOfDocument(const Node*);
89 VisiblePosition endOfDocument(const Node*);
90 VisiblePosition startOfDocument(const VisiblePosition &);
91 VisiblePosition endOfDocument(const VisiblePosition &);
92 bool isStartOfDocument(const VisiblePosition &);
93 bool isEndOfDocument(const VisiblePosition &);
96 VisiblePosition startOfEditableContent(const VisiblePosition&);
97 VisiblePosition endOfEditableContent(const VisiblePosition&);
98 bool isEndOfEditableOrNonEditableContent(const VisiblePosition&);
100 // Rect is local to the returned renderer
101 LayoutRect localCaretRectOfPosition(const PositionWithAffinity&, RenderObject*&);
105 #endif // VisibleUnits_h