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Side by Side Diff: Source/core/html/parser/HTMLSrcsetParser.h

Issue 1306413003: Make classes and structures in core/html fast-allocated. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 5 years, 4 months ago
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1 /* 1 /*
2 * Copyright (C) 2013 Apple Inc. All rights reserved. 2 * Copyright (C) 2013 Apple Inc. All rights reserved.
3 * Copyright (C) 2013 Google Inc. All rights reserved. 3 * Copyright (C) 2013 Google Inc. All rights reserved.
4 * 4 *
5 * Redistribution and use in source and binary forms, with or without 5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are 6 * modification, are permitted provided that the following conditions are
7 * met: 7 * met:
8 * 8 *
9 * * Redistributions of source code must retain the above copyright 9 * * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer. 10 * notice, this list of conditions and the following disclaimer.
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26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */ 30 */
31 31
32 #ifndef HTMLSrcsetParser_h 32 #ifndef HTMLSrcsetParser_h
33 #define HTMLSrcsetParser_h 33 #define HTMLSrcsetParser_h
34 34
35 #include "core/CoreExport.h" 35 #include "core/CoreExport.h"
36 #include "wtf/Allocator.h"
36 #include "wtf/text/WTFString.h" 37 #include "wtf/text/WTFString.h"
37 38
38 namespace blink { 39 namespace blink {
39 40
40 class Document; 41 class Document;
41 42
42 enum { UninitializedDescriptor = -1 }; 43 enum { UninitializedDescriptor = -1 };
43 44
44 class DescriptorParsingResult { 45 class DescriptorParsingResult {
46 STACK_ALLOCATED();
45 public: 47 public:
46 DescriptorParsingResult() 48 DescriptorParsingResult()
47 : m_density(UninitializedDescriptor) 49 : m_density(UninitializedDescriptor)
48 , m_resourceWidth(UninitializedDescriptor) 50 , m_resourceWidth(UninitializedDescriptor)
49 , m_resourceHeight(UninitializedDescriptor) 51 , m_resourceHeight(UninitializedDescriptor)
50 { 52 {
51 } 53 }
52 54
53 bool hasDensity() const { return m_density >= 0; } 55 bool hasDensity() const { return m_density >= 0; }
54 bool hasWidth() const { return m_resourceWidth >= 0; } 56 bool hasWidth() const { return m_resourceWidth >= 0; }
55 bool hasHeight() const { return m_resourceHeight >= 0; } 57 bool hasHeight() const { return m_resourceHeight >= 0; }
56 58
57 float density() const { ASSERT(hasDensity()); return m_density; } 59 float density() const { ASSERT(hasDensity()); return m_density; }
58 unsigned resourceWidth() const { ASSERT(hasWidth()); return m_resourceWidth; } 60 unsigned resourceWidth() const { ASSERT(hasWidth()); return m_resourceWidth; }
59 unsigned resourceHeight() const { ASSERT(hasHeight()); return m_resourceHeig ht; } 61 unsigned resourceHeight() const { ASSERT(hasHeight()); return m_resourceHeig ht; }
60 62
61 void setResourceWidth(int width) { ASSERT(width >= 0); m_resourceWidth = (un signed)width; } 63 void setResourceWidth(int width) { ASSERT(width >= 0); m_resourceWidth = (un signed)width; }
62 void setResourceHeight(int height) { ASSERT(height >= 0); m_resourceHeight = (unsigned)height; } 64 void setResourceHeight(int height) { ASSERT(height >= 0); m_resourceHeight = (unsigned)height; }
63 void setDensity(float densityToSet) { ASSERT(densityToSet >= 0); m_density = densityToSet; } 65 void setDensity(float densityToSet) { ASSERT(densityToSet >= 0); m_density = densityToSet; }
64 66
65 private: 67 private:
66 float m_density; 68 float m_density;
67 int m_resourceWidth; 69 int m_resourceWidth;
68 int m_resourceHeight; 70 int m_resourceHeight;
69 }; 71 };
70 72
71 class ImageCandidate { 73 class ImageCandidate {
74 ALLOW_ONLY_INLINE_ALLOCATION();
72 public: 75 public:
73 enum OriginAttribute { 76 enum OriginAttribute {
74 SrcsetOrigin, 77 SrcsetOrigin,
75 SrcOrigin 78 SrcOrigin
76 }; 79 };
77 80
78 ImageCandidate() 81 ImageCandidate()
79 : m_density(1.0) 82 : m_density(1.0)
80 , m_resourceWidth(UninitializedDescriptor) 83 , m_resourceWidth(UninitializedDescriptor)
81 , m_originAttribute(SrcsetOrigin) 84 , m_originAttribute(SrcsetOrigin)
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134 137
135 ImageCandidate bestFitSourceForSrcsetAttribute(float deviceScaleFactor, float so urceSize, const String& srcsetAttribute, Document* = nullptr); 138 ImageCandidate bestFitSourceForSrcsetAttribute(float deviceScaleFactor, float so urceSize, const String& srcsetAttribute, Document* = nullptr);
136 139
137 CORE_EXPORT ImageCandidate bestFitSourceForImageAttributes(float deviceScaleFact or, float sourceSize, const String& srcAttribute, const String& srcsetAttribute, Document* = nullptr); 140 CORE_EXPORT ImageCandidate bestFitSourceForImageAttributes(float deviceScaleFact or, float sourceSize, const String& srcAttribute, const String& srcsetAttribute, Document* = nullptr);
138 141
139 String bestFitSourceForImageAttributes(float deviceScaleFactor, float sourceSize , const String& srcAttribute, ImageCandidate& srcsetImageCandidate); 142 String bestFitSourceForImageAttributes(float deviceScaleFactor, float sourceSize , const String& srcAttribute, ImageCandidate& srcsetImageCandidate);
140 143
141 } 144 }
142 145
143 #endif 146 #endif
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