1/*
2 * Copyright (C) 2018 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "InlineFormattingContext.h"
28
29#if ENABLE(LAYOUT_FORMATTING_CONTEXT)
30
31#include "FormattingContext.h"
32#include "InlineFormattingState.h"
33#include "LayoutBox.h"
34#include "LayoutContainer.h"
35#include "LayoutState.h"
36#include "TextUtil.h"
37
38namespace WebCore {
39namespace Layout {
40
41WidthAndMargin InlineFormattingContext::Geometry::inlineBlockWidthAndMargin(LayoutState& layoutState, const Box& formattingContextRoot, UsedHorizontalValues usedValues)
42{
43 ASSERT(formattingContextRoot.isInFlow());
44
45 // 10.3.10 'Inline-block', replaced elements in normal flow
46
47 // Exactly as inline replaced elements.
48 if (formattingContextRoot.replaced())
49 return inlineReplacedWidthAndMargin(layoutState, formattingContextRoot, usedValues);
50
51 // 10.3.9 'Inline-block', non-replaced elements in normal flow
52
53 // If 'width' is 'auto', the used value is the shrink-to-fit width as for floating elements.
54 // A computed value of 'auto' for 'margin-left' or 'margin-right' becomes a used value of '0'.
55 // #1
56 auto width = computedValueIfNotAuto(formattingContextRoot.style().logicalWidth(), usedValues.containingBlockWidth.valueOr(0));
57 if (!width)
58 width = shrinkToFitWidth(layoutState, formattingContextRoot, usedValues);
59
60 // #2
61 auto computedHorizontalMargin = Geometry::computedHorizontalMargin(formattingContextRoot, usedValues);
62
63 return WidthAndMargin { *width, { computedHorizontalMargin.start.valueOr(0_lu), computedHorizontalMargin.end.valueOr(0_lu) }, computedHorizontalMargin };
64}
65
66HeightAndMargin InlineFormattingContext::Geometry::inlineBlockHeightAndMargin(const LayoutState& layoutState, const Box& layoutBox)
67{
68 ASSERT(layoutBox.isInFlow());
69
70 // 10.6.2 Inline replaced elements, block-level replaced elements in normal flow, 'inline-block' replaced elements in normal flow and floating replaced elements
71 if (layoutBox.replaced())
72 return inlineReplacedHeightAndMargin(layoutState, layoutBox, { });
73
74 // 10.6.6 Complicated cases
75 // - 'Inline-block', non-replaced elements.
76 auto usedHorizontalValues = UsedHorizontalValues { layoutState.displayBoxForLayoutBox(*layoutBox.containingBlock()).contentBoxWidth() };
77 return complicatedCases(layoutState, layoutBox, { }, usedHorizontalValues);
78}
79
80}
81}
82
83#endif
84