1 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is the Mozilla SVG project.
16 : *
17 : * The Initial Developer of the Original Code is IBM Corporation.
18 : * Portions created by the Initial Developer are Copyright (C) 2006
19 : * the Initial Developer. All Rights Reserved.
20 : *
21 : * Contributor(s):
22 : *
23 : * Alternatively, the contents of this file may be used under the terms of
24 : * either the GNU General Public License Version 2 or later (the "GPL"), or
25 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
26 : * in which case the provisions of the GPL or the LGPL are applicable instead
27 : * of those above. If you wish to allow use of your version of this file only
28 : * under the terms of either the GPL or the LGPL, and not to allow others to
29 : * use your version of this file under the terms of the MPL, indicate your
30 : * decision by deleting the provisions above and replace them with the notice
31 : * and other provisions required by the GPL or the LGPL. If you do not delete
32 : * the provisions above, a recipient may use your version of this file under
33 : * the terms of any one of the MPL, the GPL or the LGPL.
34 : *
35 : * ***** END LICENSE BLOCK ***** */
36 :
37 : #include "nsFrame.h"
38 : #include "nsSVGFilters.h"
39 : #include "nsSVGEffects.h"
40 :
41 : typedef nsFrame SVGFELeafFrameBase;
42 :
43 : /*
44 : * This frame is used by filter primitive elements that don't
45 : * have special child elements that provide parameters.
46 : */
47 : class SVGFELeafFrame : public SVGFELeafFrameBase
48 0 : {
49 : friend nsIFrame*
50 : NS_NewSVGFELeafFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
51 : protected:
52 0 : SVGFELeafFrame(nsStyleContext* aContext) : SVGFELeafFrameBase(aContext) {}
53 :
54 : public:
55 : NS_DECL_FRAMEARENA_HELPERS
56 :
57 : #ifdef DEBUG
58 : NS_IMETHOD Init(nsIContent* aContent,
59 : nsIFrame* aParent,
60 : nsIFrame* aPrevInFlow);
61 : #endif
62 :
63 0 : virtual bool IsFrameOfType(PRUint32 aFlags) const
64 : {
65 0 : return SVGFELeafFrameBase::IsFrameOfType(aFlags & ~(nsIFrame::eSVG));
66 : }
67 :
68 : #ifdef DEBUG
69 0 : NS_IMETHOD GetFrameName(nsAString& aResult) const
70 : {
71 0 : return MakeFrameName(NS_LITERAL_STRING("SVGFELeaf"), aResult);
72 : }
73 : #endif
74 :
75 : virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext);
76 :
77 : /**
78 : * Get the "type" of the frame
79 : *
80 : * @see nsGkAtoms::svgFELeafFrame
81 : */
82 : virtual nsIAtom* GetType() const;
83 :
84 : NS_IMETHOD AttributeChanged(PRInt32 aNameSpaceID,
85 : nsIAtom* aAttribute,
86 : PRInt32 aModType);
87 : };
88 :
89 : nsIFrame*
90 0 : NS_NewSVGFELeafFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
91 : {
92 0 : return new (aPresShell) SVGFELeafFrame(aContext);
93 : }
94 :
95 0 : NS_IMPL_FRAMEARENA_HELPERS(SVGFELeafFrame)
96 :
97 : /* virtual */ void
98 0 : SVGFELeafFrame::DidSetStyleContext(nsStyleContext* aOldStyleContext)
99 : {
100 0 : SVGFELeafFrameBase::DidSetStyleContext(aOldStyleContext);
101 0 : nsSVGEffects::InvalidateRenderingObservers(this);
102 0 : }
103 :
104 : #ifdef DEBUG
105 : NS_IMETHODIMP
106 0 : SVGFELeafFrame::Init(nsIContent* aContent,
107 : nsIFrame* aParent,
108 : nsIFrame* aPrevInFlow)
109 : {
110 0 : nsCOMPtr<nsIDOMSVGFilterPrimitiveStandardAttributes> elem = do_QueryInterface(aContent);
111 0 : NS_ASSERTION(elem,
112 : "Trying to construct an SVGFELeafFrame for a "
113 : "content element that doesn't support the right interfaces");
114 :
115 0 : return SVGFELeafFrameBase::Init(aContent, aParent, aPrevInFlow);
116 : }
117 : #endif /* DEBUG */
118 :
119 : nsIAtom *
120 0 : SVGFELeafFrame::GetType() const
121 : {
122 0 : return nsGkAtoms::svgFELeafFrame;
123 : }
124 :
125 : NS_IMETHODIMP
126 0 : SVGFELeafFrame::AttributeChanged(PRInt32 aNameSpaceID,
127 : nsIAtom* aAttribute,
128 : PRInt32 aModType)
129 : {
130 0 : nsSVGFE *element = static_cast<nsSVGFE*>(mContent);
131 0 : if (element->AttributeAffectsRendering(aNameSpaceID, aAttribute)) {
132 0 : nsSVGEffects::InvalidateRenderingObservers(this);
133 : }
134 :
135 : return SVGFELeafFrameBase::AttributeChanged(aNameSpaceID,
136 0 : aAttribute, aModType);
137 : }
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