/src/mozilla-central/layout/mathml/nsMathMLmrowFrame.cpp
Line | Count | Source (jump to first uncovered line) |
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/. */ |
6 | | |
7 | | #include "nsMathMLmrowFrame.h" |
8 | | #include "mozilla/gfx/2D.h" |
9 | | |
10 | | // |
11 | | // <mrow> -- horizontally group any number of subexpressions - implementation |
12 | | // |
13 | | |
14 | | nsIFrame* |
15 | | NS_NewMathMLmrowFrame(nsIPresShell* aPresShell, ComputedStyle* aStyle) |
16 | 0 | { |
17 | 0 | return new (aPresShell) nsMathMLmrowFrame(aStyle); |
18 | 0 | } |
19 | | |
20 | | NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmrowFrame) |
21 | | |
22 | | nsMathMLmrowFrame::~nsMathMLmrowFrame() |
23 | 0 | { |
24 | 0 | } |
25 | | |
26 | | NS_IMETHODIMP |
27 | | nsMathMLmrowFrame::InheritAutomaticData(nsIFrame* aParent) |
28 | 0 | { |
29 | 0 | // let the base class get the default from our parent |
30 | 0 | nsMathMLContainerFrame::InheritAutomaticData(aParent); |
31 | 0 |
|
32 | 0 | mPresentationData.flags |= NS_MATHML_STRETCH_ALL_CHILDREN_VERTICALLY; |
33 | 0 |
|
34 | 0 | return NS_OK; |
35 | 0 | } |
36 | | |
37 | | nsresult |
38 | | nsMathMLmrowFrame::AttributeChanged(int32_t aNameSpaceID, |
39 | | nsAtom* aAttribute, |
40 | | int32_t aModType) |
41 | 0 | { |
42 | 0 | // Special for <mtable>: In the frame construction code, we also use |
43 | 0 | // this frame class as a wrapper for mtable. Hence, we should pass the |
44 | 0 | // notification to the real mtable |
45 | 0 | if (mContent->IsMathMLElement(nsGkAtoms::mtable_)) { |
46 | 0 | nsIFrame* frame = mFrames.FirstChild(); |
47 | 0 | for ( ; frame; frame = frame->PrincipalChildList().FirstChild()) { |
48 | 0 | // drill down to the real mtable |
49 | 0 | if (frame->IsTableWrapperFrame()) |
50 | 0 | return frame->AttributeChanged(aNameSpaceID, aAttribute, aModType); |
51 | 0 | } |
52 | 0 | MOZ_ASSERT_UNREACHABLE("mtable wrapper without the real table frame"); |
53 | 0 | } |
54 | 0 |
|
55 | 0 | return nsMathMLContainerFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType); |
56 | 0 | } |
57 | | |
58 | | /* virtual */ eMathMLFrameType |
59 | | nsMathMLmrowFrame::GetMathMLFrameType() |
60 | 0 | { |
61 | 0 | if (!IsMrowLike()) { |
62 | 0 | nsIMathMLFrame* child = do_QueryFrame(mFrames.FirstChild()); |
63 | 0 | if (child) { |
64 | 0 | // We only have one child, so we return the frame type of that child as if |
65 | 0 | // we didn't exist. |
66 | 0 | return child->GetMathMLFrameType(); |
67 | 0 | } |
68 | 0 | } |
69 | 0 | return nsMathMLFrame::GetMathMLFrameType(); |
70 | 0 | } |