1/*
2 * Copyright (C) 2011-2017 Apple Inc. 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 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "FilterOperation.h"
29#include "IntRectExtent.h"
30#include <wtf/RefPtr.h>
31#include <wtf/Vector.h>
32
33namespace WebCore {
34
35using FilterOutsets = IntRectExtent;
36
37class FilterOperations {
38 WTF_MAKE_FAST_ALLOCATED;
39public:
40 bool operator==(const FilterOperations&) const;
41 bool operator!=(const FilterOperations& other) const { return !(*this == other); }
42
43 void clear() { m_operations.clear(); }
44
45 Vector<RefPtr<FilterOperation>>& operations() { return m_operations; }
46 const Vector<RefPtr<FilterOperation>>& operations() const { return m_operations; }
47
48 bool isEmpty() const { return m_operations.isEmpty(); }
49 size_t size() const { return m_operations.size(); }
50 const FilterOperation* at(size_t index) const { return index < m_operations.size() ? m_operations[index].get() : nullptr; }
51
52 bool operationsMatch(const FilterOperations&) const;
53
54 bool hasOutsets() const;
55 FilterOutsets outsets() const;
56
57 bool hasFilterThatAffectsOpacity() const;
58 bool hasFilterThatMovesPixels() const;
59 bool hasFilterThatShouldBeRestrictedBySecurityOrigin() const;
60
61 bool hasReferenceFilter() const;
62
63 bool transformColor(Color&) const;
64 bool inverseTransformColor(Color&) const;
65
66private:
67 Vector<RefPtr<FilterOperation>> m_operations;
68};
69
70WEBCORE_EXPORT WTF::TextStream& operator<<(WTF::TextStream&, const FilterOperations&);
71
72} // namespace WebCore
73