/src/mozilla-central/layout/svg/SVGFEUnstyledLeafFrame.cpp
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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 | | // Keep in (case-insensitive) order: |
8 | | #include "nsContainerFrame.h" |
9 | | #include "nsFrame.h" |
10 | | #include "nsGkAtoms.h" |
11 | | #include "SVGObserverUtils.h" |
12 | | #include "nsSVGFilters.h" |
13 | | |
14 | | class SVGFEUnstyledLeafFrame final : public nsFrame |
15 | | { |
16 | | friend nsIFrame* |
17 | | NS_NewSVGFEUnstyledLeafFrame(nsIPresShell* aPresShell, ComputedStyle* aStyle); |
18 | | protected: |
19 | | explicit SVGFEUnstyledLeafFrame(ComputedStyle* aStyle) |
20 | | : nsFrame(aStyle, kClassID) |
21 | 0 | { |
22 | 0 | AddStateBits(NS_FRAME_SVG_LAYOUT | NS_FRAME_IS_NONDISPLAY); |
23 | 0 | } |
24 | | |
25 | | public: |
26 | | NS_DECL_FRAMEARENA_HELPERS(SVGFEUnstyledLeafFrame) |
27 | | |
28 | | virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder, |
29 | 0 | const nsDisplayListSet& aLists) override {} |
30 | | |
31 | | virtual bool IsFrameOfType(uint32_t aFlags) const override |
32 | 0 | { |
33 | 0 | if (aFlags & eSupportsContainLayoutAndPaint) { |
34 | 0 | return false; |
35 | 0 | } |
36 | 0 | |
37 | 0 | return nsFrame::IsFrameOfType(aFlags & ~(nsIFrame::eSVG)); |
38 | 0 | } |
39 | | |
40 | | #ifdef DEBUG_FRAME_DUMP |
41 | | virtual nsresult GetFrameName(nsAString& aResult) const override |
42 | | { |
43 | | return MakeFrameName(NS_LITERAL_STRING("SVGFEUnstyledLeaf"), aResult); |
44 | | } |
45 | | #endif |
46 | | |
47 | | virtual nsresult AttributeChanged(int32_t aNameSpaceID, |
48 | | nsAtom* aAttribute, |
49 | | int32_t aModType) override; |
50 | | |
51 | 0 | virtual bool ComputeCustomOverflow(nsOverflowAreas& aOverflowAreas) override { |
52 | 0 | // We don't maintain a visual overflow rect |
53 | 0 | return false; |
54 | 0 | } |
55 | | }; |
56 | | |
57 | | nsIFrame* |
58 | | NS_NewSVGFEUnstyledLeafFrame(nsIPresShell* aPresShell, ComputedStyle* aStyle) |
59 | 0 | { |
60 | 0 | return new (aPresShell) SVGFEUnstyledLeafFrame(aStyle); |
61 | 0 | } |
62 | | |
63 | | NS_IMPL_FRAMEARENA_HELPERS(SVGFEUnstyledLeafFrame) |
64 | | |
65 | | nsresult |
66 | | SVGFEUnstyledLeafFrame::AttributeChanged(int32_t aNameSpaceID, |
67 | | nsAtom* aAttribute, |
68 | | int32_t aModType) |
69 | 0 | { |
70 | 0 | SVGFEUnstyledElement *element = static_cast<SVGFEUnstyledElement*>(GetContent()); |
71 | 0 | if (element->AttributeAffectsRendering(aNameSpaceID, aAttribute)) { |
72 | 0 | MOZ_ASSERT(GetParent()->GetParent()->IsSVGFilterFrame(), |
73 | 0 | "Observers observe the filter, so that's what we must invalidate"); |
74 | 0 | SVGObserverUtils::InvalidateDirectRenderingObservers(GetParent()->GetParent()); |
75 | 0 | } |
76 | 0 |
|
77 | 0 | return nsFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType); |
78 | 0 | } |