1/*
2 * This file is part of the render object implementation for KHTML.
3 *
4 * Copyright (C) 2003 Apple Inc.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 *
21 */
22
23#pragma once
24
25#include "RenderBlock.h"
26
27namespace WebCore {
28
29class FlexBoxIterator;
30
31class RenderDeprecatedFlexibleBox final : public RenderBlock {
32 WTF_MAKE_ISO_ALLOCATED(RenderDeprecatedFlexibleBox);
33public:
34 RenderDeprecatedFlexibleBox(Element&, RenderStyle&&);
35 virtual ~RenderDeprecatedFlexibleBox();
36
37 Element& element() const { return downcast<Element>(nodeForNonAnonymous()); }
38
39 const char* renderName() const override;
40
41 void styleWillChange(StyleDifference, const RenderStyle& newStyle) override;
42
43 void layoutBlock(bool relayoutChildren, LayoutUnit pageHeight = 0_lu) override;
44 void layoutHorizontalBox(bool relayoutChildren);
45 void layoutVerticalBox(bool relayoutChildren);
46
47 bool isStretchingChildren() const { return m_stretchingChildren; }
48
49 bool avoidsFloats() const override { return true; }
50 bool canDropAnonymousBlockChild() const override { return false; }
51
52 void placeChild(RenderBox* child, const LayoutPoint& location, LayoutSize* childLayoutDelta = nullptr);
53
54private:
55 bool isDeprecatedFlexibleBox() const override { return true; }
56 void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const override;
57 void computePreferredLogicalWidths() override;
58
59 LayoutUnit allowedChildFlex(RenderBox* child, bool expanding, unsigned group);
60
61 bool hasMultipleLines() const { return style().boxLines() == BoxLines::Multiple; }
62 bool isVertical() const { return style().boxOrient() == BoxOrient::Vertical; }
63 bool isHorizontal() const { return style().boxOrient() == BoxOrient::Horizontal; }
64
65 void applyLineClamp(FlexBoxIterator&, bool relayoutChildren);
66 void clearLineClamp();
67
68 bool m_stretchingChildren;
69};
70
71} // namespace WebCore
72
73SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderDeprecatedFlexibleBox, isDeprecatedFlexibleBox())
74