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
|
/*
* Copyright (C) 2024 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.
*/
#include "config.h"
#include "BlockStepSizing.h"
#include "RenderBox.h"
#include "RenderStyleInlines.h"
namespace WebCore {
namespace BlockStepSizing {
bool childHasSupportedStyle(const RenderStyle& childStyle)
{
return childStyle.blockStepInsert() == BlockStepInsert::MarginBox
&& childStyle.blockStepAlign() == BlockStepAlign::Auto
&& childStyle.blockStepRound() == BlockStepRound::Up;
}
LayoutUnit computeExtraSpace(LayoutUnit stepSize, LayoutUnit boxOuterSize)
{
if (!stepSize)
return { };
if (!boxOuterSize)
return stepSize;
if (auto remainder = intMod(boxOuterSize, stepSize))
return stepSize - remainder;
return { };
}
void distributeExtraSpaceToChildMargins(RenderBox& child, LayoutUnit extraSpace, WritingMode containingBlockWritingMode)
{
auto halfExtraSpace = extraSpace / 2;
child.setMarginBefore(child.marginBefore(containingBlockWritingMode) + halfExtraSpace);
child.setMarginAfter(child.marginAfter(containingBlockWritingMode) + halfExtraSpace);
}
NO_RETURN_DUE_TO_ASSERT void distributeExtraSpaceToChildPadding(RenderBox& /* child */, LayoutUnit /* extraSpace */, WritingMode /* containingBlockWritingMode */)
{
ASSERT_NOT_IMPLEMENTED_YET();
}
NO_RETURN_DUE_TO_ASSERT void distributeExtraSpaceToChildContentArea(RenderBox& /* child */, LayoutUnit /* extraSpace */, WritingMode /* containingBlockWritingMode */)
{
ASSERT_NOT_IMPLEMENTED_YET();
}
} // namespace BlockStepSizing
} // namespace WebCore
|
