1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
/*
* Copyright (C) 2004 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef VisibleUnits_h
#define VisibleUnits_h
#include "EditingBoundary.h"
#include "TextDirection.h"
#include "VisibleSelection.h"
namespace WebCore {
class Node;
class VisiblePosition;
enum EWordSide { RightWordIfOnBoundary = false, LeftWordIfOnBoundary = true };
// words
WEBCORE_EXPORT VisiblePosition startOfWord(const VisiblePosition &, EWordSide = RightWordIfOnBoundary);
WEBCORE_EXPORT VisiblePosition endOfWord(const VisiblePosition &, EWordSide = RightWordIfOnBoundary);
WEBCORE_EXPORT VisiblePosition previousWordPosition(const VisiblePosition &);
WEBCORE_EXPORT VisiblePosition nextWordPosition(const VisiblePosition &);
VisiblePosition rightWordPosition(const VisiblePosition&, bool skipsSpaceWhenMovingRight);
VisiblePosition leftWordPosition(const VisiblePosition&, bool skipsSpaceWhenMovingRight);
bool isStartOfWord(const VisiblePosition&);
// sentences
WEBCORE_EXPORT VisiblePosition startOfSentence(const VisiblePosition &);
WEBCORE_EXPORT VisiblePosition endOfSentence(const VisiblePosition &);
WEBCORE_EXPORT VisiblePosition previousSentencePosition(const VisiblePosition &);
WEBCORE_EXPORT VisiblePosition nextSentencePosition(const VisiblePosition &);
// lines
WEBCORE_EXPORT VisiblePosition startOfLine(const VisiblePosition &);
WEBCORE_EXPORT VisiblePosition endOfLine(const VisiblePosition &);
WEBCORE_EXPORT VisiblePosition previousLinePosition(const VisiblePosition&, int lineDirectionPoint, EditableType = ContentIsEditable);
WEBCORE_EXPORT VisiblePosition nextLinePosition(const VisiblePosition&, int lineDirectionPoint, EditableType = ContentIsEditable);
WEBCORE_EXPORT bool inSameLine(const VisiblePosition &, const VisiblePosition &);
WEBCORE_EXPORT bool isStartOfLine(const VisiblePosition &);
WEBCORE_EXPORT bool isEndOfLine(const VisiblePosition &);
VisiblePosition logicalStartOfLine(const VisiblePosition &);
VisiblePosition logicalEndOfLine(const VisiblePosition &);
bool isLogicalEndOfLine(const VisiblePosition &);
VisiblePosition leftBoundaryOfLine(const VisiblePosition&, TextDirection);
VisiblePosition rightBoundaryOfLine(const VisiblePosition&, TextDirection);
// paragraphs (perhaps a misnomer, can be divided by line break elements)
WEBCORE_EXPORT VisiblePosition startOfParagraph(const VisiblePosition&, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
WEBCORE_EXPORT VisiblePosition endOfParagraph(const VisiblePosition&, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
VisiblePosition startOfNextParagraph(const VisiblePosition&);
WEBCORE_EXPORT VisiblePosition previousParagraphPosition(const VisiblePosition &, int x);
WEBCORE_EXPORT VisiblePosition nextParagraphPosition(const VisiblePosition &, int x);
WEBCORE_EXPORT bool isStartOfParagraph(const VisiblePosition &, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
WEBCORE_EXPORT bool isEndOfParagraph(const VisiblePosition &, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
bool inSameParagraph(const VisiblePosition &, const VisiblePosition &, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
// blocks (true paragraphs; line break elements don't break blocks)
VisiblePosition startOfBlock(const VisiblePosition &, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
VisiblePosition endOfBlock(const VisiblePosition &, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
bool inSameBlock(const VisiblePosition &, const VisiblePosition &);
bool isStartOfBlock(const VisiblePosition &);
bool isEndOfBlock(const VisiblePosition &);
// document
WEBCORE_EXPORT VisiblePosition startOfDocument(const Node*);
WEBCORE_EXPORT VisiblePosition endOfDocument(const Node*);
WEBCORE_EXPORT VisiblePosition startOfDocument(const VisiblePosition &);
WEBCORE_EXPORT VisiblePosition endOfDocument(const VisiblePosition &);
bool inSameDocument(const VisiblePosition &, const VisiblePosition &);
WEBCORE_EXPORT bool isStartOfDocument(const VisiblePosition &);
WEBCORE_EXPORT bool isEndOfDocument(const VisiblePosition &);
// editable content
WEBCORE_EXPORT VisiblePosition startOfEditableContent(const VisiblePosition&);
WEBCORE_EXPORT VisiblePosition endOfEditableContent(const VisiblePosition&);
WEBCORE_EXPORT bool isEndOfEditableOrNonEditableContent(const VisiblePosition&);
WEBCORE_EXPORT bool atBoundaryOfGranularity(const VisiblePosition&, TextGranularity, SelectionDirection);
WEBCORE_EXPORT bool withinTextUnitOfGranularity(const VisiblePosition&, TextGranularity, SelectionDirection);
WEBCORE_EXPORT VisiblePosition positionOfNextBoundaryOfGranularity(const VisiblePosition&, TextGranularity, SelectionDirection);
WEBCORE_EXPORT PassRefPtr<Range> enclosingTextUnitOfGranularity(const VisiblePosition&, TextGranularity, SelectionDirection);
WEBCORE_EXPORT int distanceBetweenPositions(const VisiblePosition&, const VisiblePosition&);
WEBCORE_EXPORT PassRefPtr<Range> wordRangeFromPosition(const VisiblePosition& position);
WEBCORE_EXPORT VisiblePosition closestWordBoundaryForPosition(const VisiblePosition& position);
WEBCORE_EXPORT void charactersAroundPosition(const VisiblePosition&, UChar32& oneAfter, UChar32& oneBefore, UChar32& twoBefore);
} // namespace WebCore
#endif // VisibleUnits_h
|
