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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 #ifndef DOMArrayBufferView_h | 5 #ifndef DOMArrayBufferView_h |
6 #define DOMArrayBufferView_h | 6 #define DOMArrayBufferView_h |
7 | 7 |
8 #include "bindings/core/v8/ScriptWrappable.h" | 8 #include "bindings/core/v8/ScriptWrappable.h" |
9 #include "core/CoreExport.h" | 9 #include "core/CoreExport.h" |
10 #include "core/dom/DOMArrayBuffer.h" | 10 #include "core/dom/DOMArrayBuffer.h" |
11 #include "core/dom/DOMSharedArrayBuffer.h" | 11 #include "core/dom/DOMSharedArrayBuffer.h" |
12 #include "wtf/ArrayBufferView.h" | 12 #include "wtf/ArrayBufferView.h" |
| 13 #include "wtf/RefCounted.h" |
13 | 14 |
14 namespace blink { | 15 namespace blink { |
15 | 16 |
16 class CORE_EXPORT DOMArrayBufferView : public GarbageCollectedFinalized<DOMArray
BufferView>, public ScriptWrappable { | 17 class CORE_EXPORT DOMArrayBufferView : public RefCounted<DOMArrayBufferView>, pu
blic ScriptWrappable { |
17 DEFINE_WRAPPERTYPEINFO(); | 18 DEFINE_WRAPPERTYPEINFO(); |
18 public: | 19 public: |
19 typedef WTF::ArrayBufferView::ViewType ViewType; | 20 typedef WTF::ArrayBufferView::ViewType ViewType; |
20 static const ViewType TypeInt8 = WTF::ArrayBufferView::TypeInt8; | 21 static const ViewType TypeInt8 = WTF::ArrayBufferView::TypeInt8; |
21 static const ViewType TypeUint8 = WTF::ArrayBufferView::TypeUint8; | 22 static const ViewType TypeUint8 = WTF::ArrayBufferView::TypeUint8; |
22 static const ViewType TypeUint8Clamped = WTF::ArrayBufferView::TypeUint8Clam
ped; | 23 static const ViewType TypeUint8Clamped = WTF::ArrayBufferView::TypeUint8Clam
ped; |
23 static const ViewType TypeInt16 = WTF::ArrayBufferView::TypeInt16; | 24 static const ViewType TypeInt16 = WTF::ArrayBufferView::TypeInt16; |
24 static const ViewType TypeUint16 = WTF::ArrayBufferView::TypeUint16; | 25 static const ViewType TypeUint16 = WTF::ArrayBufferView::TypeUint16; |
25 static const ViewType TypeInt32 = WTF::ArrayBufferView::TypeInt32; | 26 static const ViewType TypeInt32 = WTF::ArrayBufferView::TypeInt32; |
26 static const ViewType TypeUint32 = WTF::ArrayBufferView::TypeUint32; | 27 static const ViewType TypeUint32 = WTF::ArrayBufferView::TypeUint32; |
27 static const ViewType TypeFloat32 = WTF::ArrayBufferView::TypeFloat32; | 28 static const ViewType TypeFloat32 = WTF::ArrayBufferView::TypeFloat32; |
28 static const ViewType TypeFloat64 = WTF::ArrayBufferView::TypeFloat64; | 29 static const ViewType TypeFloat64 = WTF::ArrayBufferView::TypeFloat64; |
29 static const ViewType TypeDataView = WTF::ArrayBufferView::TypeDataView; | 30 static const ViewType TypeDataView = WTF::ArrayBufferView::TypeDataView; |
30 | 31 |
31 virtual ~DOMArrayBufferView() { } | 32 virtual ~DOMArrayBufferView() { } |
32 | 33 |
33 DOMArrayBuffer* buffer() const | 34 PassRefPtr<DOMArrayBuffer> buffer() const |
34 { | 35 { |
35 DCHECK(!isShared()); | 36 DCHECK(!isShared()); |
36 if (!m_domArrayBuffer) | 37 if (!m_domArrayBuffer) { |
37 m_domArrayBuffer = DOMArrayBuffer::create(view()->buffer()); | 38 m_domArrayBuffer = DOMArrayBuffer::create(view()->buffer()); |
38 | 39 } |
39 return static_cast<DOMArrayBuffer*>(m_domArrayBuffer.get()); | 40 return static_pointer_cast<DOMArrayBuffer>(m_domArrayBuffer); |
40 } | 41 } |
41 | 42 |
42 DOMSharedArrayBuffer* bufferShared() const | 43 PassRefPtr<DOMSharedArrayBuffer> bufferShared() const |
43 { | 44 { |
44 DCHECK(isShared()); | 45 DCHECK(isShared()); |
45 if (!m_domArrayBuffer) | 46 if (!m_domArrayBuffer) { |
46 m_domArrayBuffer = DOMSharedArrayBuffer::create(view()->buffer()); | 47 m_domArrayBuffer = DOMSharedArrayBuffer::create(view()->buffer()); |
47 | 48 } |
48 return static_cast<DOMSharedArrayBuffer*>(m_domArrayBuffer.get()); | 49 return static_pointer_cast<DOMSharedArrayBuffer>(m_domArrayBuffer); |
49 } | 50 } |
50 | 51 |
51 DOMArrayBufferBase* bufferBase() const | 52 PassRefPtr<DOMArrayBufferBase> bufferBase() const |
52 { | 53 { |
53 if (isShared()) | 54 if (isShared()) { |
54 return bufferShared(); | 55 return bufferShared(); |
55 | 56 } |
56 return buffer(); | 57 return buffer(); |
57 } | 58 } |
58 | 59 |
59 const WTF::ArrayBufferView* view() const { return m_bufferView.get(); } | 60 const WTF::ArrayBufferView* view() const { return m_bufferView.get(); } |
60 WTF::ArrayBufferView* view() { return m_bufferView.get(); } | 61 WTF::ArrayBufferView* view() { return m_bufferView.get(); } |
61 | 62 |
62 ViewType type() const { return view()->type(); } | 63 ViewType type() const { return view()->type(); } |
63 const char* typeName() { return view()->typeName(); } | 64 const char* typeName() { return view()->typeName(); } |
64 void* baseAddress() const { return view()->baseAddress(); } | 65 void* baseAddress() const { return view()->baseAddress(); } |
65 unsigned byteOffset() const { return view()->byteOffset(); } | 66 unsigned byteOffset() const { return view()->byteOffset(); } |
66 unsigned byteLength() const { return view()->byteLength(); } | 67 unsigned byteLength() const { return view()->byteLength(); } |
67 void setNeuterable(bool flag) { return view()->setNeuterable(flag); } | 68 void setNeuterable(bool flag) { return view()->setNeuterable(flag); } |
68 bool isShared() const { return view()->isShared(); } | 69 bool isShared() const { return view()->isShared(); } |
69 | 70 |
70 v8::Local<v8::Object> wrap(v8::Isolate*, v8::Local<v8::Object> creationConte
xt) override | 71 v8::Local<v8::Object> wrap(v8::Isolate*, v8::Local<v8::Object> creationConte
xt) override |
71 { | 72 { |
72 ASSERT_NOT_REACHED(); | 73 ASSERT_NOT_REACHED(); |
73 return v8::Local<v8::Object>(); | 74 return v8::Local<v8::Object>(); |
74 } | 75 } |
75 | 76 |
76 DEFINE_INLINE_VIRTUAL_TRACE() | |
77 { | |
78 visitor->trace(m_domArrayBuffer); | |
79 } | |
80 | |
81 protected: | 77 protected: |
82 explicit DOMArrayBufferView(PassRefPtr<WTF::ArrayBufferView> bufferView) | 78 explicit DOMArrayBufferView(PassRefPtr<WTF::ArrayBufferView> bufferView) |
83 : m_bufferView(bufferView) | 79 : m_bufferView(bufferView) |
84 { | 80 { |
85 DCHECK(m_bufferView); | 81 DCHECK(m_bufferView); |
86 } | 82 } |
87 DOMArrayBufferView(PassRefPtr<WTF::ArrayBufferView> bufferView, DOMArrayBuff
erBase* domArrayBuffer) | 83 DOMArrayBufferView(PassRefPtr<WTF::ArrayBufferView> bufferView, PassRefPtr<D
OMArrayBufferBase> domArrayBuffer) |
88 : m_bufferView(bufferView) | 84 : m_bufferView(bufferView), m_domArrayBuffer(domArrayBuffer) |
89 , m_domArrayBuffer(domArrayBuffer) | |
90 { | 85 { |
91 DCHECK(m_bufferView); | 86 DCHECK(m_bufferView); |
92 DCHECK(m_domArrayBuffer); | 87 DCHECK(m_domArrayBuffer); |
93 DCHECK_EQ(m_domArrayBuffer->buffer(), m_bufferView->buffer()); | 88 DCHECK_EQ(m_domArrayBuffer->buffer(), m_bufferView->buffer()); |
94 } | 89 } |
95 | 90 |
96 private: | 91 private: |
97 RefPtr<WTF::ArrayBufferView> m_bufferView; | 92 RefPtr<WTF::ArrayBufferView> m_bufferView; |
98 mutable Member<DOMArrayBufferBase> m_domArrayBuffer; | 93 mutable RefPtr<DOMArrayBufferBase> m_domArrayBuffer; |
99 }; | 94 }; |
100 | 95 |
101 } // namespace blink | 96 } // namespace blink |
102 | 97 |
103 #endif // DOMArrayBufferView_h | 98 #endif // DOMArrayBufferView_h |
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