1 /*
2 * Copyright (C) 2011 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 COMPUTER, 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 COMPUTER, 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 #include "third_party/blink/renderer/core/style/filter_operations.h"
27
28 #include <numeric>
29
30 namespace blink {
31
32 FilterOperations::FilterOperations() = default;
33
Trace(Visitor * visitor) const34 void FilterOperations::Trace(Visitor* visitor) const {
35 visitor->Trace(operations_);
36 }
37
38 FilterOperations& FilterOperations::operator=(const FilterOperations& other) =
39 default;
40
operator ==(const FilterOperations & o) const41 bool FilterOperations::operator==(const FilterOperations& o) const {
42 if (operations_.size() != o.operations_.size())
43 return false;
44
45 unsigned s = operations_.size();
46 for (unsigned i = 0; i < s; i++) {
47 if (*operations_[i] != *o.operations_[i])
48 return false;
49 }
50
51 return true;
52 }
53
CanInterpolateWith(const FilterOperations & other) const54 bool FilterOperations::CanInterpolateWith(const FilterOperations& other) const {
55 auto can_interpolate = [](FilterOperation* operation) {
56 return FilterOperation::CanInterpolate(operation->GetType());
57 };
58 if (!std::all_of(Operations().begin(), Operations().end(), can_interpolate) ||
59 !std::all_of(other.Operations().begin(), other.Operations().end(),
60 can_interpolate)) {
61 return false;
62 }
63
64 wtf_size_t common_size =
65 std::min(Operations().size(), other.Operations().size());
66 for (wtf_size_t i = 0; i < common_size; ++i) {
67 if (!Operations()[i]->IsSameType(*other.Operations()[i]))
68 return false;
69 }
70 return true;
71 }
72
MapRect(const FloatRect & rect) const73 FloatRect FilterOperations::MapRect(const FloatRect& rect) const {
74 auto accumulate_mapped_rect = [](const FloatRect& rect,
75 const Member<FilterOperation>& op) {
76 return op->MapRect(rect);
77 };
78 return std::accumulate(operations_.begin(), operations_.end(), rect,
79 accumulate_mapped_rect);
80 }
81
HasFilterThatAffectsOpacity() const82 bool FilterOperations::HasFilterThatAffectsOpacity() const {
83 return std::any_of(
84 operations_.begin(), operations_.end(),
85 [](const auto& operation) { return operation->AffectsOpacity(); });
86 }
87
HasFilterThatMovesPixels() const88 bool FilterOperations::HasFilterThatMovesPixels() const {
89 return std::any_of(
90 operations_.begin(), operations_.end(),
91 [](const auto& operation) { return operation->MovesPixels(); });
92 }
93
HasReferenceFilter() const94 bool FilterOperations::HasReferenceFilter() const {
95 return std::any_of(
96 operations_.begin(), operations_.end(), [](const auto& operation) {
97 return operation->GetType() == FilterOperation::REFERENCE;
98 });
99 }
100
AddClient(SVGResourceClient & client) const101 void FilterOperations::AddClient(SVGResourceClient& client) const {
102 for (FilterOperation* operation : operations_) {
103 if (operation->GetType() == FilterOperation::REFERENCE)
104 To<ReferenceFilterOperation>(*operation).AddClient(client);
105 }
106 }
107
RemoveClient(SVGResourceClient & client) const108 void FilterOperations::RemoveClient(SVGResourceClient& client) const {
109 for (FilterOperation* operation : operations_) {
110 if (operation->GetType() == FilterOperation::REFERENCE)
111 To<ReferenceFilterOperation>(*operation).RemoveClient(client);
112 }
113 }
114
115 } // namespace blink
116