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1 /** | 1 /** |
2 * Copyright (C) 2005 Apple Computer, Inc. | 2 * Copyright (C) 2005 Apple Computer, Inc. |
3 * | 3 * |
4 * This library is free software; you can redistribute it and/or | 4 * This library is free software; you can redistribute it and/or |
5 * modify it under the terms of the GNU Library General Public | 5 * modify it under the terms of the GNU Library General Public |
6 * License as published by the Free Software Foundation; either | 6 * License as published by the Free Software Foundation; either |
7 * version 2 of the License, or (at your option) any later version. | 7 * version 2 of the License, or (at your option) any later version. |
8 * | 8 * |
9 * This library is distributed in the hope that it will be useful, | 9 * This library is distributed in the hope that it will be useful, |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
(...skipping 14 matching lines...) Expand all Loading... |
25 using namespace HTMLNames; | 25 using namespace HTMLNames; |
26 | 26 |
27 LayoutButton::LayoutButton(Element* element) | 27 LayoutButton::LayoutButton(Element* element) |
28 : LayoutFlexibleBox(element), m_inner(nullptr) {} | 28 : LayoutFlexibleBox(element), m_inner(nullptr) {} |
29 | 29 |
30 LayoutButton::~LayoutButton() {} | 30 LayoutButton::~LayoutButton() {} |
31 | 31 |
32 void LayoutButton::addChild(LayoutObject* newChild, LayoutObject* beforeChild) { | 32 void LayoutButton::addChild(LayoutObject* newChild, LayoutObject* beforeChild) { |
33 if (!m_inner) { | 33 if (!m_inner) { |
34 // Create an anonymous block. | 34 // Create an anonymous block. |
35 ASSERT(!firstChild()); | 35 DCHECK(!firstChild()); |
36 m_inner = createAnonymousBlock(style()->display()); | 36 m_inner = createAnonymousBlock(style()->display()); |
37 LayoutFlexibleBox::addChild(m_inner); | 37 LayoutFlexibleBox::addChild(m_inner); |
38 } | 38 } |
39 | 39 |
40 m_inner->addChild(newChild, beforeChild); | 40 m_inner->addChild(newChild, beforeChild); |
41 } | 41 } |
42 | 42 |
43 void LayoutButton::removeChild(LayoutObject* oldChild) { | 43 void LayoutButton::removeChild(LayoutObject* oldChild) { |
44 if (oldChild == m_inner || !m_inner) { | 44 if (oldChild == m_inner || !m_inner) { |
45 LayoutFlexibleBox::removeChild(oldChild); | 45 LayoutFlexibleBox::removeChild(oldChild); |
46 m_inner = 0; | 46 m_inner = 0; |
47 | 47 |
48 } else if (oldChild->parent() == this) { | 48 } else if (oldChild->parent() == this) { |
49 // We aren't the inner node, but we're getting removed from the button, this | 49 // We aren't the inner node, but we're getting removed from the button, this |
50 // can happen with things like scrollable area resizer's. | 50 // can happen with things like scrollable area resizer's. |
51 LayoutFlexibleBox::removeChild(oldChild); | 51 LayoutFlexibleBox::removeChild(oldChild); |
52 | 52 |
53 } else { | 53 } else { |
54 m_inner->removeChild(oldChild); | 54 m_inner->removeChild(oldChild); |
55 } | 55 } |
56 } | 56 } |
57 | 57 |
58 void LayoutButton::updateAnonymousChildStyle(const LayoutObject& child, | 58 void LayoutButton::updateAnonymousChildStyle(const LayoutObject& child, |
59 ComputedStyle& childStyle) const { | 59 ComputedStyle& childStyle) const { |
60 ASSERT(!m_inner || &child == m_inner); | 60 DCHECK(!m_inner || &child == m_inner); |
61 | 61 |
62 childStyle.setFlexGrow(1.0f); | 62 childStyle.setFlexGrow(1.0f); |
63 // min-width: 0; is needed for correct shrinking. | 63 // min-width: 0; is needed for correct shrinking. |
64 childStyle.setMinWidth(Length(0, Fixed)); | 64 childStyle.setMinWidth(Length(0, Fixed)); |
65 // Use margin:auto instead of align-items:center to get safe centering, i.e. | 65 // Use margin:auto instead of align-items:center to get safe centering, i.e. |
66 // when the content overflows, treat it the same as align-items: flex-start. | 66 // when the content overflows, treat it the same as align-items: flex-start. |
67 childStyle.setMarginTop(Length()); | 67 childStyle.setMarginTop(Length()); |
68 childStyle.setMarginBottom(Length()); | 68 childStyle.setMarginBottom(Length()); |
69 childStyle.setFlexDirection(style()->flexDirection()); | 69 childStyle.setFlexDirection(style()->flexDirection()); |
70 childStyle.setJustifyContent(style()->justifyContent()); | 70 childStyle.setJustifyContent(style()->justifyContent()); |
71 childStyle.setFlexWrap(style()->flexWrap()); | 71 childStyle.setFlexWrap(style()->flexWrap()); |
72 // TODO (lajava): An anonymous box must not be used to resolve children's auto | 72 // TODO (lajava): An anonymous box must not be used to resolve children's auto |
73 // values. | 73 // values. |
74 childStyle.setAlignItems(style()->alignItems()); | 74 childStyle.setAlignItems(style()->alignItems()); |
75 childStyle.setAlignContent(style()->alignContent()); | 75 childStyle.setAlignContent(style()->alignContent()); |
76 } | 76 } |
77 | 77 |
78 LayoutRect LayoutButton::controlClipRect( | 78 LayoutRect LayoutButton::controlClipRect( |
79 const LayoutPoint& additionalOffset) const { | 79 const LayoutPoint& additionalOffset) const { |
80 // Clip to the padding box to at least give content the extra padding space. | 80 // Clip to the padding box to at least give content the extra padding space. |
81 LayoutRect rect(additionalOffset, size()); | 81 LayoutRect rect(additionalOffset, size()); |
82 rect.expand(borderInsets()); | 82 rect.expand(borderInsets()); |
83 return rect; | 83 return rect; |
84 } | 84 } |
85 | 85 |
86 int LayoutButton::baselinePosition(FontBaseline baseline, | 86 int LayoutButton::baselinePosition(FontBaseline baseline, |
87 bool firstLine, | 87 bool firstLine, |
88 LineDirectionMode direction, | 88 LineDirectionMode direction, |
89 LinePositionMode linePositionMode) const { | 89 LinePositionMode linePositionMode) const { |
90 ASSERT(linePositionMode == PositionOnContainingLine); | 90 DCHECK_EQ(linePositionMode, PositionOnContainingLine); |
91 // We want to call the LayoutBlock version of firstLineBoxBaseline to | 91 // We want to call the LayoutBlock version of firstLineBoxBaseline to |
92 // avoid LayoutFlexibleBox synthesizing a baseline that we don't want. | 92 // avoid LayoutFlexibleBox synthesizing a baseline that we don't want. |
93 // We use this check as a proxy for "are there any line boxes in this button" | 93 // We use this check as a proxy for "are there any line boxes in this button" |
94 if (!hasLineIfEmpty() && LayoutBlock::firstLineBoxBaseline() == -1) { | 94 if (!hasLineIfEmpty() && LayoutBlock::firstLineBoxBaseline() == -1) { |
95 // To ensure that we have a consistent baseline when we have no children, | 95 // To ensure that we have a consistent baseline when we have no children, |
96 // even when we have the anonymous LayoutBlock child, we calculate the | 96 // even when we have the anonymous LayoutBlock child, we calculate the |
97 // baseline for the empty case manually here. | 97 // baseline for the empty case manually here. |
98 if (direction == HorizontalLine) { | 98 if (direction == HorizontalLine) { |
99 return (marginTop() + size().height() - borderBottom() - paddingBottom() - | 99 return (marginTop() + size().height() - borderBottom() - paddingBottom() - |
100 horizontalScrollbarHeight()) | 100 horizontalScrollbarHeight()) |
101 .toInt(); | 101 .toInt(); |
102 } | 102 } |
103 return (marginRight() + size().width() - borderLeft() - paddingLeft() - | 103 return (marginRight() + size().width() - borderLeft() - paddingLeft() - |
104 verticalScrollbarWidth()) | 104 verticalScrollbarWidth()) |
105 .toInt(); | 105 .toInt(); |
106 } | 106 } |
107 return LayoutFlexibleBox::baselinePosition(baseline, firstLine, direction, | 107 return LayoutFlexibleBox::baselinePosition(baseline, firstLine, direction, |
108 linePositionMode); | 108 linePositionMode); |
109 } | 109 } |
110 | 110 |
111 // For compatibility with IE/FF we only clip overflow on input elements. | 111 // For compatibility with IE/FF we only clip overflow on input elements. |
112 bool LayoutButton::hasControlClip() const { | 112 bool LayoutButton::hasControlClip() const { |
113 return !isHTMLButtonElement(node()); | 113 return !isHTMLButtonElement(node()); |
114 } | 114 } |
115 } // namespace blink | 115 } // namespace blink |
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