Source/core/editing/VisibleUnits.h - Issue 1326313002: Introduce composed tree version of leftPositionOf()

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Issue 1326313002: Introduce composed tree version of leftPositionOf() (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: 2015-09-09T12:49:11 Add a comment about DOM version of leftPositoin() for composed tree Created 5 years, 3 months ago

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1 /*	1 /*

2 * Copyright (C) 2004 Apple Computer, Inc. All rights reserved.	2 * Copyright (C) 2004 Apple Computer, Inc. All rights reserved.

3 *	3 *

4 * Redistribution and use in source and binary forms, with or without	4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions	5 * modification, are permitted provided that the following conditions

6 * are met:	6 * are met:

7 * 1. Redistributions of source code must retain the above copyright	7 * 1. Redistributions of source code must retain the above copyright

8 * notice, this list of conditions and the following disclaimer.	8 * notice, this list of conditions and the following disclaimer.

9 * 2. Redistributions in binary form must reproduce the above copyright	9 * 2. Redistributions in binary form must reproduce the above copyright

10 * notice, this list of conditions and the following disclaimer in the	10 * notice, this list of conditions and the following disclaimer in the

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89 CORE_EXPORT PositionInComposedTree canonicalPositionOf(const PositionInComposedT ree&);	89 CORE_EXPORT PositionInComposedTree canonicalPositionOf(const PositionInComposedT ree&);

90	90

91 // Bounds of (possibly transformed) caret in absolute coords	91 // Bounds of (possibly transformed) caret in absolute coords

92 CORE_EXPORT IntRect absoluteCaretBoundsOf(const VisiblePosition&);	92 CORE_EXPORT IntRect absoluteCaretBoundsOf(const VisiblePosition&);

93 CORE_EXPORT IntRect absoluteCaretBoundsOf(const VisiblePositionInComposedTree&);	93 CORE_EXPORT IntRect absoluteCaretBoundsOf(const VisiblePositionInComposedTree&);

94	94

95 CORE_EXPORT UChar32 characterAfter(const VisiblePosition&);	95 CORE_EXPORT UChar32 characterAfter(const VisiblePosition&);

96 CORE_EXPORT UChar32 characterAfter(const VisiblePositionInComposedTree&);	96 CORE_EXPORT UChar32 characterAfter(const VisiblePositionInComposedTree&);

97 UChar32 characterBefore(const VisiblePosition&);	97 UChar32 characterBefore(const VisiblePosition&);

98	98

99 VisiblePosition leftPositionOf(const VisiblePosition&);	99 // TODO(yosin) Since return value of \|leftPositionOf()\| with \|VisiblePosition\|

	100 // isn't defined well on composed tree, we should not use it for a position in

	101 // composed tree.

	102 CORE_EXPORT VisiblePosition leftPositionOf(const VisiblePosition&);

	103 CORE_EXPORT VisiblePositionInComposedTree leftPositionOf(const VisiblePositionIn ComposedTree&);

100 VisiblePosition rightPositionOf(const VisiblePosition&);	104 VisiblePosition rightPositionOf(const VisiblePosition&);

101	105

102 CORE_EXPORT VisiblePosition nextPositionOf(const VisiblePosition&, EditingBounda ryCrossingRule = CanCrossEditingBoundary);	106 CORE_EXPORT VisiblePosition nextPositionOf(const VisiblePosition&, EditingBounda ryCrossingRule = CanCrossEditingBoundary);

103 CORE_EXPORT VisiblePositionInComposedTree nextPositionOf(const VisiblePositionIn ComposedTree&, EditingBoundaryCrossingRule = CanCrossEditingBoundary);	107 CORE_EXPORT VisiblePositionInComposedTree nextPositionOf(const VisiblePositionIn ComposedTree&, EditingBoundaryCrossingRule = CanCrossEditingBoundary);

104 VisiblePosition previousPositionOf(const VisiblePosition&, EditingBoundaryCrossi ngRule = CanCrossEditingBoundary);	108 VisiblePosition previousPositionOf(const VisiblePosition&, EditingBoundaryCrossi ngRule = CanCrossEditingBoundary);

105	109

106 // words	110 // words

107 CORE_EXPORT VisiblePosition startOfWord(const VisiblePosition&, EWordSide = Righ tWordIfOnBoundary);	111 CORE_EXPORT VisiblePosition startOfWord(const VisiblePosition&, EWordSide = Righ tWordIfOnBoundary);

108 CORE_EXPORT VisiblePosition endOfWord(const VisiblePosition&, EWordSide = RightW ordIfOnBoundary);	112 CORE_EXPORT VisiblePosition endOfWord(const VisiblePosition&, EWordSide = RightW ordIfOnBoundary);

109 VisiblePosition previousWordPosition(const VisiblePosition&);	113 VisiblePosition previousWordPosition(const VisiblePosition&);

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178	182

179 // Returns a hit-tested VisiblePosition for the given point in contents-space	183 // Returns a hit-tested VisiblePosition for the given point in contents-space

180 // coordinates.	184 // coordinates.

181 CORE_EXPORT VisiblePosition visiblePositionForContentsPoint(const IntPoint&, Loc alFrame*);	185 CORE_EXPORT VisiblePosition visiblePositionForContentsPoint(const IntPoint&, Loc alFrame*);

182	186

183 CORE_EXPORT bool rendersInDifferentPosition(const Position&, const Position&);	187 CORE_EXPORT bool rendersInDifferentPosition(const Position&, const Position&);

184	188

185 } // namespace blink	189 } // namespace blink

186	190

187 #endif // VisibleUnits_h	191 #endif // VisibleUnits_h

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