1/*
2 * Copyright (C) 2014 Frédéric Wang (fred.wang@free.fr). All rights reserved.
3 * Copyright (C) 2016 Igalia S.L.
4 * Copyright (C) 2016 Apple Inc. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#pragma once
29
30#if ENABLE(MATHML)
31
32#include "RenderMathMLBlock.h"
33
34namespace WebCore {
35
36class MathMLTokenElement;
37
38class RenderMathMLToken : public RenderMathMLBlock {
39 WTF_MAKE_ISO_ALLOCATED(RenderMathMLToken);
40public:
41 RenderMathMLToken(MathMLTokenElement&, RenderStyle&&);
42 RenderMathMLToken(Document&, RenderStyle&&);
43
44 MathMLTokenElement& element();
45
46 virtual void updateTokenContent();
47 void updateFromElement() override;
48
49protected:
50 void paint(PaintInfo&, const LayoutPoint&) override;
51 void paintChildren(PaintInfo& forSelf, const LayoutPoint&, PaintInfo& forChild, bool usePrintRect) override;
52 Optional<int> firstLineBaseline() const override;
53 void layoutBlock(bool relayoutChildren, LayoutUnit pageLogicalHeight = 0_lu) override;
54 void computePreferredLogicalWidths() override;
55
56private:
57 bool isRenderMathMLToken() const final { return true; }
58 const char* renderName() const override { return "RenderMathMLToken"; }
59 bool isChildAllowed(const RenderObject&, const RenderStyle&) const final { return true; };
60 void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
61 void updateMathVariantGlyph();
62 void setMathVariantGlyphDirty()
63 {
64 m_mathVariantGlyphDirty = true;
65 setNeedsLayoutAndPrefWidthsRecalc();
66 }
67 Optional<UChar32> m_mathVariantCodePoint { WTF::nullopt };
68 bool m_mathVariantIsMirrored { false };
69 bool m_mathVariantGlyphDirty { false };
70};
71
72} // namespace WebCore
73
74SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderMathMLToken, isRenderMathMLToken())
75
76#endif // ENABLE(MATHML)
77