layout/mathml/nsMathMLmsqrtFrame.h@925c144e1f1f (annotated)
layout/mathml/nsMathMLmsqrtFrame.h
Fri, 16 Jan 2015 18:13:44 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Fri, 16 Jan 2015 18:13:44 +0100
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
- permissions
- -rw-r--r--
Integrate suggestion from review to improve consistency with existing code.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef nsMathMLmsqrtFrame_h___ |
| michael@0 | 7 | #define nsMathMLmsqrtFrame_h___ |
| michael@0 | 8 | |
| michael@0 | 9 | #include "mozilla/Attributes.h" |
| michael@0 | 10 | #include "nsMathMLmencloseFrame.h" |
| michael@0 | 11 | |
| michael@0 | 12 | // |
| michael@0 | 13 | // <msqrt> -- form a radical |
| michael@0 | 14 | // |
| michael@0 | 15 | |
| michael@0 | 16 | /* |
| michael@0 | 17 | The MathML REC describes: |
| michael@0 | 18 | |
| michael@0 | 19 | The <msqrt> element is used to display square roots. |
| michael@0 | 20 | The syntax for <msqrt> is: |
| michael@0 | 21 | <msqrt> base </msqrt> |
| michael@0 | 22 | |
| michael@0 | 23 | Attributes of <msqrt> and <mroot>: |
| michael@0 | 24 | |
| michael@0 | 25 | None (except the attributes allowed for all MathML elements, listed in Section |
| michael@0 | 26 | 2.3.4). |
| michael@0 | 27 | |
| michael@0 | 28 | The <mroot> element increments scriptlevel by 2, and sets displaystyle to |
| michael@0 | 29 | "false", within index, but leaves both attributes unchanged within base. The |
| michael@0 | 30 | <msqrt> element leaves both attributes unchanged within all its arguments. |
| michael@0 | 31 | These attributes are inherited by every element from its rendering environment, |
| michael@0 | 32 | but can be set explicitly only on <mstyle>. (See Section 3.3.4.) |
| michael@0 | 33 | */ |
| michael@0 | 34 | |
| michael@0 | 35 | class nsMathMLmsqrtFrame : public nsMathMLmencloseFrame { |
| michael@0 | 36 | public: |
| michael@0 | 37 | NS_DECL_FRAMEARENA_HELPERS |
| michael@0 | 38 | |
| michael@0 | 39 | friend nsIFrame* NS_NewMathMLmsqrtFrame(nsIPresShell* aPresShell, |
| michael@0 | 40 | nsStyleContext* aContext); |
| michael@0 | 41 | |
| michael@0 | 42 | virtual void |
| michael@0 | 43 | Init(nsIContent* aContent, |
| michael@0 | 44 | nsIFrame* aParent, |
| michael@0 | 45 | nsIFrame* aPrevInFlow) MOZ_OVERRIDE; |
| michael@0 | 46 | |
| michael@0 | 47 | NS_IMETHOD |
| michael@0 | 48 | InheritAutomaticData(nsIFrame* aParent) MOZ_OVERRIDE; |
| michael@0 | 49 | |
| michael@0 | 50 | virtual nsresult |
| michael@0 | 51 | AttributeChanged(int32_t aNameSpaceID, |
| michael@0 | 52 | nsIAtom* aAttribute, |
| michael@0 | 53 | int32_t aModType) MOZ_OVERRIDE; |
| michael@0 | 54 | |
| michael@0 | 55 | virtual bool |
| michael@0 | 56 | IsMrowLike() MOZ_OVERRIDE |
| michael@0 | 57 | { |
| michael@0 | 58 | return mFrames.FirstChild() != mFrames.LastChild() || |
| michael@0 | 59 | !mFrames.FirstChild(); |
| michael@0 | 60 | } |
| michael@0 | 61 | |
| michael@0 | 62 | protected: |
| michael@0 | 63 | nsMathMLmsqrtFrame(nsStyleContext* aContext); |
| michael@0 | 64 | virtual ~nsMathMLmsqrtFrame(); |
| michael@0 | 65 | }; |
| michael@0 | 66 | |
| michael@0 | 67 | #endif /* nsMathMLmsqrtFrame_h___ */ |
| michael@0 | 68 |
