1/*
2 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above
9 *    copyright notice, this list of conditions and the following
10 *    disclaimer.
11 * 2. Redistributions in binary form must reproduce the above
12 *    copyright notice, this list of conditions and the following
13 *    disclaimer in the documentation and/or other materials
14 *    provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
21 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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
27 * SUCH DAMAGE.
28 */
29
30#ifndef RenderLayerFilterInfo_h
31#define RenderLayerFilterInfo_h
32
33#include "core/dom/Element.h"
34#include "core/fetch/DocumentResource.h"
35#include "platform/geometry/LayoutRect.h"
36#include "platform/graphics/filters/FilterOperation.h"
37#include "wtf/HashMap.h"
38#include "wtf/PassRefPtr.h"
39#include "wtf/RefPtr.h"
40
41namespace blink {
42
43class FilterEffectRenderer;
44class FilterOperations;
45class RenderLayer;
46class RenderLayerFilterInfo;
47
48typedef HashMap<const RenderLayer*, RenderLayerFilterInfo*> RenderLayerFilterInfoMap;
49
50class RenderLayerFilterInfo FINAL : public DocumentResourceClient {
51public:
52    static RenderLayerFilterInfo* filterInfoForRenderLayer(const RenderLayer*);
53    static RenderLayerFilterInfo* createFilterInfoForRenderLayerIfNeeded(RenderLayer*);
54    static void removeFilterInfoForRenderLayer(RenderLayer*);
55
56    FilterEffectRenderer* renderer() const { return m_renderer.get(); }
57    void setRenderer(PassRefPtr<FilterEffectRenderer>);
58
59    void updateReferenceFilterClients(const FilterOperations&);
60    virtual void notifyFinished(Resource*) OVERRIDE;
61    void removeReferenceFilterClients();
62
63private:
64    RenderLayerFilterInfo(RenderLayer*);
65    virtual ~RenderLayerFilterInfo();
66
67    RenderLayer* m_layer;
68
69    RefPtr<FilterEffectRenderer> m_renderer;
70
71    static RenderLayerFilterInfoMap* s_filterMap;
72    WillBePersistentHeapVector<RefPtrWillBeMember<Element> > m_internalSVGReferences;
73    Vector<ResourcePtr<DocumentResource> > m_externalSVGReferences;
74};
75
76} // namespace blink
77
78
79#endif // RenderLayerFilterInfo_h
80