-
Notifications
You must be signed in to change notification settings - Fork 1.2k
/
InlineDamage.h
77 lines (66 loc) · 3.22 KB
/
InlineDamage.h
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
/*
* Copyright (C) 2021 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. AND ITS CONTRIBUTORS ``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 ITS 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.
*/
#pragma once
#include "InlineLineTypes.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
namespace Layout {
class Box;
class InlineInvalidation;
class InlineDamage {
WTF_MAKE_ISO_ALLOCATED_INLINE(InlineDamage);
public:
InlineDamage() = default;
enum class Type {
// Can't decide the type of damage. Let's nuke all the things.
Invalid,
// Content changed or some style property that drives soft wrap opportunities (e.g. going from white-space: pre to normal).
// This tells us to re-process the inline content and run line layout.
NeedsContentUpdateAndLineLayout,
// Same content but either the constraint or some style that may affect line breaking changed (e.g. font-size or containing block set new horizontal constraint).
NeedsLineLayout,
// Line breaking positions are the same, only height related style changed (e.g img's height changes).
NeedsVerticalAdjustment,
// Line breaking positions are the same, runs may show up at a different horizontal position (e.g. text-align changes).
NeedsHorizontalAdjustment
};
Type type() const { return m_damageType; }
// FIXME: Add support for damage range with multiple, different damage types.
struct ContentPosition {
size_t lineIndex { 0 };
InlineItemPosition inlineItemPosition { };
};
std::optional<ContentPosition> contentPosition() const { return m_contentPosition; }
void addDetachedBox(UniqueRef<Box>&& layoutBox) { m_detachedLayoutBoxes.append(WTFMove(layoutBox)); }
private:
friend class InlineInvalidation;
void setDamageType(Type type) { m_damageType = type; }
void setDamagedPosition(ContentPosition contentPosition) { m_contentPosition = contentPosition; }
Type m_damageType { Type::Invalid };
std::optional<ContentPosition> m_contentPosition;
Vector<UniqueRef<Box>> m_detachedLayoutBoxes;
};
}
}