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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "core/css/CSSPaintValue.h" | 5 #include "core/css/CSSPaintValue.h" |
6 | 6 |
7 #include "core/css/CSSCustomIdentValue.h" | 7 #include "core/css/CSSCustomIdentValue.h" |
8 #include "core/css/CSSSyntaxDescriptor.h" | |
9 #include "core/css/cssom/StyleValueFactory.h" | |
8 #include "core/layout/LayoutObject.h" | 10 #include "core/layout/LayoutObject.h" |
9 #include "platform/graphics/Image.h" | 11 #include "platform/graphics/Image.h" |
10 #include "wtf/text/StringBuilder.h" | 12 #include "wtf/text/StringBuilder.h" |
11 | 13 |
12 namespace blink { | 14 namespace blink { |
13 | 15 |
14 CSSPaintValue::CSSPaintValue(CSSCustomIdentValue* name) | 16 CSSPaintValue::CSSPaintValue(CSSCustomIdentValue* name) |
15 : CSSImageGeneratorValue(PaintClass), | 17 : CSSImageGeneratorValue(PaintClass), |
16 m_name(name), | 18 m_name(name), |
17 m_paintImageGeneratorObserver(new Observer(this)) {} | 19 m_paintImageGeneratorObserver(new Observer(this)) {} |
(...skipping 22 matching lines...) Expand all Loading... | |
40 return m_name->value(); | 42 return m_name->value(); |
41 } | 43 } |
42 | 44 |
43 PassRefPtr<Image> CSSPaintValue::image(const LayoutObject& layoutObject, | 45 PassRefPtr<Image> CSSPaintValue::image(const LayoutObject& layoutObject, |
44 const IntSize& size, | 46 const IntSize& size, |
45 float zoom) { | 47 float zoom) { |
46 if (!m_generator) | 48 if (!m_generator) |
47 m_generator = CSSPaintImageGenerator::create( | 49 m_generator = CSSPaintImageGenerator::create( |
48 name(), layoutObject.document(), m_paintImageGeneratorObserver); | 50 name(), layoutObject.document(), m_paintImageGeneratorObserver); |
49 | 51 |
50 return m_generator->paint(layoutObject, size, zoom); | 52 if (!m_parsedInputArguments) { |
ikilpatrick
2017/02/21 17:40:36
This is unfortunately racy. You'll need to check i
renjieliu1
2017/02/22 04:47:54
thank you for the suggestion! I will keep the code
| |
53 m_parsedInputArguments = new CSSStyleValueVector(); | |
54 | |
55 // Parse arguments. | |
56 if (RuntimeEnabledFeatures::cssPaintAPIArgumentsEnabled()) { | |
57 const Vector<CSSSyntaxDescriptor>& inputArgumentTypes = | |
58 m_generator->inputArgumentTypes(); | |
59 if (m_argumentVariableData.size() != inputArgumentTypes.size()) { | |
60 m_parsedInputArguments = nullptr; | |
61 return nullptr; | |
62 } | |
63 for (size_t i = 0; i < m_argumentVariableData.size(); ++i) { | |
64 const CSSValue* parsedValue = | |
65 m_argumentVariableData[i]->parseForSyntax(inputArgumentTypes[i]); | |
66 if (!parsedValue) { | |
67 m_parsedInputArguments = nullptr; | |
68 return nullptr; | |
69 } | |
70 m_parsedInputArguments->appendVector( | |
71 StyleValueFactory::cssValueToStyleValueVector(*parsedValue)); | |
72 } | |
73 } | |
74 } | |
75 | |
76 return m_generator->paint(layoutObject, size, zoom, m_parsedInputArguments); | |
51 } | 77 } |
52 | 78 |
53 void CSSPaintValue::Observer::paintImageGeneratorReady() { | 79 void CSSPaintValue::Observer::paintImageGeneratorReady() { |
54 m_ownerValue->paintImageGeneratorReady(); | 80 m_ownerValue->paintImageGeneratorReady(); |
55 } | 81 } |
56 | 82 |
57 void CSSPaintValue::paintImageGeneratorReady() { | 83 void CSSPaintValue::paintImageGeneratorReady() { |
58 for (const LayoutObject* client : clients().keys()) { | 84 for (const LayoutObject* client : clients().keys()) { |
59 const_cast<LayoutObject*>(client)->imageChanged( | 85 const_cast<LayoutObject*>(client)->imageChanged( |
60 static_cast<WrappedImagePtr>(this)); | 86 static_cast<WrappedImagePtr>(this)); |
61 } | 87 } |
62 } | 88 } |
63 | 89 |
64 bool CSSPaintValue::knownToBeOpaque(const LayoutObject& layoutObject) const { | 90 bool CSSPaintValue::knownToBeOpaque(const LayoutObject& layoutObject) const { |
65 return m_generator && !m_generator->hasAlpha(); | 91 return m_generator && !m_generator->hasAlpha(); |
66 } | 92 } |
67 | 93 |
68 bool CSSPaintValue::equals(const CSSPaintValue& other) const { | 94 bool CSSPaintValue::equals(const CSSPaintValue& other) const { |
69 return name() == other.name() && customCSSText() == other.customCSSText(); | 95 return name() == other.name() && customCSSText() == other.customCSSText(); |
70 } | 96 } |
71 | 97 |
72 DEFINE_TRACE_AFTER_DISPATCH(CSSPaintValue) { | 98 DEFINE_TRACE_AFTER_DISPATCH(CSSPaintValue) { |
73 visitor->trace(m_name); | 99 visitor->trace(m_name); |
74 visitor->trace(m_generator); | 100 visitor->trace(m_generator); |
75 visitor->trace(m_paintImageGeneratorObserver); | 101 visitor->trace(m_paintImageGeneratorObserver); |
102 visitor->trace(m_parsedInputArguments); | |
76 CSSImageGeneratorValue::traceAfterDispatch(visitor); | 103 CSSImageGeneratorValue::traceAfterDispatch(visitor); |
77 } | 104 } |
78 | 105 |
79 } // namespace blink | 106 } // namespace blink |
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