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Side by Side Diff: third_party/WebKit/Source/core/paint/PaintLayerResourceInfo.h

Issue 2484153003: Use an SVGElementProxy in ReferenceClipPathOperation (Closed)
Patch Set: Rebase; fix comments; findElement Created 4 years, 1 month ago
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1 /* 1 /*
2 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved. 2 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 7 *
8 * 1. Redistributions of source code must retain the above 8 * 1. Redistributions of source code must retain the above
9 * copyright notice, this list of conditions and the following 9 * copyright notice, this list of conditions and the following
10 * disclaimer. 10 * disclaimer.
11 * 2. Redistributions in binary form must reproduce the above 11 * 2. Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following 12 * copyright notice, this list of conditions and the following
13 * disclaimer in the documentation and/or other materials 13 * disclaimer in the documentation and/or other materials
14 * provided with the distribution. 14 * provided with the distribution.
15 * 15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
21 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
25 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 25 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
26 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE. 27 * SUCH DAMAGE.
28 */ 28 */
29 29
30 #ifndef PaintLayerFilterInfo_h 30 #ifndef PaintLayerResourceInfo_h
31 #define PaintLayerFilterInfo_h 31 #define PaintLayerResourceInfo_h
32 32
33 #include "core/svg/SVGResourceClient.h" 33 #include "core/svg/SVGResourceClient.h"
34 #include "platform/heap/Handle.h" 34 #include "platform/heap/Handle.h"
35 #include "wtf/Noncopyable.h" 35 #include "wtf/Noncopyable.h"
36 36
37 namespace blink { 37 namespace blink {
38 38
39 class FilterEffect; 39 class FilterEffect;
40 class PaintLayer; 40 class PaintLayer;
41 41
42 // PaintLayerFilterInfo holds the filter information for painting. 42 // PaintLayerResourceInfo holds the filter information for painting
43 // https://drafts.fxtf.org/filters/ 43 // https://drafts.fxtf.org/filters/. It also acts as the resource client for
44 // change notifications from <clipPath> elements for the clip-path property.
44 // 45 //
45 // Because PaintLayer is not allocated for SVG objects, SVG filters (both 46 // Because PaintLayer is not allocated for SVG objects, SVG filters (both
46 // software and hardware-accelerated) use a different code path to paint the 47 // software and hardware-accelerated) use a different code path to paint the
47 // filters (SVGFilterPainter), but both code paths use the same abstraction for 48 // filters (SVGFilterPainter), but both code paths use the same abstraction for
48 // painting non-hardware accelerated filters (FilterEffect). Hardware 49 // painting non-hardware accelerated filters (FilterEffect). Hardware
49 // accelerated CSS filters use CompositorFilterOperations, that is backed by cc. 50 // accelerated CSS filters use CompositorFilterOperations, that is backed by cc.
50 // 51 class PaintLayerResourceInfo final
51 class PaintLayerFilterInfo final 52 : public GarbageCollectedFinalized<PaintLayerResourceInfo>,
52 : public GarbageCollectedFinalized<PaintLayerFilterInfo>,
53 public SVGResourceClient { 53 public SVGResourceClient {
54 WTF_MAKE_NONCOPYABLE(PaintLayerFilterInfo); 54 WTF_MAKE_NONCOPYABLE(PaintLayerResourceInfo);
55 USING_GARBAGE_COLLECTED_MIXIN(PaintLayerFilterInfo); 55 USING_GARBAGE_COLLECTED_MIXIN(PaintLayerResourceInfo);
56 56
57 public: 57 public:
58 explicit PaintLayerFilterInfo(PaintLayer*); 58 explicit PaintLayerResourceInfo(PaintLayer*);
59 ~PaintLayerFilterInfo() override; 59 ~PaintLayerResourceInfo() override;
60 60
61 void setLastEffect(FilterEffect*); 61 void setLastEffect(FilterEffect*);
62 FilterEffect* lastEffect() const; 62 FilterEffect* lastEffect() const;
63 void invalidateFilterChain(); 63 void invalidateFilterChain();
64 64
65 void clearLayer() { m_layer = nullptr; } 65 void clearLayer() { m_layer = nullptr; }
66 66
67 TreeScope* treeScope() override; 67 TreeScope* treeScope() override;
68 68
69 void resourceContentChanged() override; 69 void resourceContentChanged() override;
70 void resourceElementChanged() override; 70 void resourceElementChanged() override;
71 71
72 DECLARE_TRACE(); 72 DECLARE_TRACE();
73 73
74 private: 74 private:
75 // |clearLayer| must be called before *m_layer becomes invalid. 75 // |clearLayer| must be called before *m_layer becomes invalid.
76 PaintLayer* m_layer; 76 PaintLayer* m_layer;
77 Member<FilterEffect> m_lastEffect; 77 Member<FilterEffect> m_lastEffect;
78 }; 78 };
79 79
80 } // namespace blink 80 } // namespace blink
81 81
82 #endif // PaintLayerFilterInfo_h 82 #endif // PaintLayerResourceInfo_h
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