Bug 1856663 - Add more chunks for Android mochitest-plain. r=jmaher,taskgraph-reviewe...
[gecko.git] / layout / mathml / nsMathMLmencloseFrame.h
blob7465a4342e902aafaeb10bc655d413ea90bfe61f
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
7 #ifndef nsMathMLmencloseFrame_h___
8 #define nsMathMLmencloseFrame_h___
10 #include "mozilla/Attributes.h"
11 #include "mozilla/EnumSet.h"
12 #include "nsMathMLChar.h"
13 #include "nsMathMLContainerFrame.h"
15 namespace mozilla {
16 class PresShell;
17 } // namespace mozilla
20 // <menclose> -- enclose content with a stretching symbol such
21 // as a long division sign.
25 The MathML REC describes:
27 The menclose element renders its content inside the enclosing notation
28 specified by its notation attribute. menclose accepts any number of arguments;
29 if this number is not 1, its contents are treated as a single "inferred mrow"
30 containing its arguments, as described in Section 3.1.3 Required Arguments.
33 enum nsMencloseNotation {
34 NOTATION_LONGDIV,
35 NOTATION_RADICAL,
36 NOTATION_ROUNDEDBOX,
37 NOTATION_CIRCLE,
38 NOTATION_LEFT,
39 NOTATION_RIGHT,
40 NOTATION_TOP,
41 NOTATION_BOTTOM,
42 NOTATION_UPDIAGONALSTRIKE,
43 NOTATION_DOWNDIAGONALSTRIKE,
44 NOTATION_VERTICALSTRIKE,
45 NOTATION_HORIZONTALSTRIKE,
46 NOTATION_UPDIAGONALARROW,
47 NOTATION_PHASORANGLE
50 class nsMathMLmencloseFrame : public nsMathMLContainerFrame {
51 public:
52 NS_DECL_FRAMEARENA_HELPERS(nsMathMLmencloseFrame)
54 friend nsIFrame* NS_NewMathMLmencloseFrame(mozilla::PresShell* aPresShell,
55 ComputedStyle* aStyle);
57 virtual nsresult Place(DrawTarget* aDrawTarget, bool aPlaceOrigin,
58 ReflowOutput& aDesiredSize) override;
60 virtual nsresult MeasureForWidth(DrawTarget* aDrawTarget,
61 ReflowOutput& aDesiredSize) override;
63 virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
64 int32_t aModType) override;
66 void DidSetComputedStyle(ComputedStyle* aOldStyle) override;
68 virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
69 const nsDisplayListSet& aLists) override;
71 NS_IMETHOD
72 InheritAutomaticData(nsIFrame* aParent) override;
74 NS_IMETHOD
75 TransmitAutomaticData() override;
77 virtual nscoord FixInterFrameSpacing(ReflowOutput& aDesiredSize) override;
79 bool IsMrowLike() override {
80 return mFrames.FirstChild() != mFrames.LastChild() || !mFrames.FirstChild();
83 protected:
84 explicit nsMathMLmencloseFrame(ComputedStyle* aStyle,
85 nsPresContext* aPresContext,
86 ClassID aID = kClassID);
87 virtual ~nsMathMLmencloseFrame();
89 nsresult PlaceInternal(DrawTarget* aDrawTarget, bool aPlaceOrigin,
90 ReflowOutput& aDesiredSize, bool aWidthOnly);
92 // functions to parse the "notation" attribute.
93 nsresult AddNotation(const nsAString& aNotation);
94 void InitNotations();
96 // Description of the notations to draw
97 mozilla::EnumSet<nsMencloseNotation> mNotationsToDraw;
98 bool IsToDraw(nsMencloseNotation notation) {
99 return mNotationsToDraw.contains(notation);
102 nscoord mRuleThickness;
103 nscoord mRadicalRuleThickness;
104 nsTArray<nsMathMLChar> mMathMLChar;
105 int8_t mLongDivCharIndex, mRadicalCharIndex;
106 nscoord mContentWidth;
107 nsresult AllocateMathMLChar(nsMencloseNotation mask);
109 // Display a frame of the specified type.
110 // @param aType Type of frame to display
111 void DisplayNotation(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame,
112 const nsRect& aRect, const nsDisplayListSet& aLists,
113 nscoord aThickness, nsMencloseNotation aType);
116 #endif /* nsMathMLmencloseFrame_h___ */