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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 DOMArrayBuffer_h | 5 #ifndef DOMArrayBuffer_h |
6 #define DOMArrayBuffer_h | 6 #define DOMArrayBuffer_h |
7 | 7 |
8 #include "core/CoreExport.h" | 8 #include "core/CoreExport.h" |
9 #include "core/dom/DOMArrayBufferBase.h" | 9 #include "core/dom/DOMArrayBufferBase.h" |
10 #include "wtf/ArrayBuffer.h" | 10 #include "wtf/ArrayBuffer.h" |
11 | 11 |
12 namespace blink { | 12 namespace blink { |
13 | 13 |
14 class CORE_EXPORT DOMArrayBuffer final : public DOMArrayBufferBase { | 14 class CORE_EXPORT DOMArrayBuffer final : public DOMArrayBufferBase { |
15 DEFINE_WRAPPERTYPEINFO(); | 15 DEFINE_WRAPPERTYPEINFO(); |
16 public: | 16 public: |
17 static PassRefPtr<DOMArrayBuffer> create(PassRefPtr<WTF::ArrayBuffer> buffer
) | 17 static PassRefPtr<DOMArrayBuffer> createOrNull(PassRefPtr<WTF::ArrayBuffer>
buffer) |
18 { | 18 { |
| 19 if (!buffer) |
| 20 return nullptr; |
19 return adoptRef(new DOMArrayBuffer(buffer)); | 21 return adoptRef(new DOMArrayBuffer(buffer)); |
20 } | 22 } |
21 static PassRefPtr<DOMArrayBuffer> create(unsigned numElements, unsigned elem
entByteSize) | 23 static PassRefPtr<DOMArrayBuffer> createOrNull(unsigned numElements, unsigne
d elementByteSize) |
22 { | 24 { |
23 return create(WTF::ArrayBuffer::create(numElements, elementByteSize)); | 25 return createOrNull(WTF::ArrayBuffer::createOrNull(numElements, elementB
yteSize)); |
24 } | 26 } |
25 static PassRefPtr<DOMArrayBuffer> create(const void* source, unsigned byteLe
ngth) | 27 static PassRefPtr<DOMArrayBuffer> createOrNull(const void* source, unsigned
byteLength) |
26 { | 28 { |
27 return create(WTF::ArrayBuffer::create(source, byteLength)); | 29 return createOrNull(WTF::ArrayBuffer::createOrNull(source, byteLength)); |
| 30 } |
| 31 static PassRefPtr<DOMArrayBuffer> deprecatedCreateOrCrash(const void* source
, unsigned byteLength) |
| 32 { |
| 33 return create(WTF::ArrayBuffer::deprecatedCreateOrCrash(source, byteLeng
th)); |
| 34 } |
| 35 static PassRefPtr<DOMArrayBuffer> deprecatedCreateOrCrash(unsigned numElemen
ts, unsigned elementByteSize) |
| 36 { |
| 37 return create(WTF::ArrayBuffer::deprecatedCreateOrCrash(numElements, ele
mentByteSize)); |
28 } | 38 } |
29 static PassRefPtr<DOMArrayBuffer> create(WTF::ArrayBufferContents& contents) | 39 static PassRefPtr<DOMArrayBuffer> create(WTF::ArrayBufferContents& contents) |
30 { | 40 { |
31 return create(WTF::ArrayBuffer::create(contents)); | 41 return adoptRef(new DOMArrayBuffer(WTF::ArrayBuffer::create(contents))); |
| 42 } |
| 43 static PassRefPtr<DOMArrayBuffer> create(PassRefPtr<WTF::ArrayBuffer> buffer
) |
| 44 { |
| 45 ASSERT(buffer); |
| 46 return adoptRef(new DOMArrayBuffer(buffer)); |
| 47 } |
| 48 // Only for use by XMLHttpRequest::responseArrayBuffer and |
| 49 // Internals::serializeObject. |
| 50 static PassRefPtr<DOMArrayBuffer> createUninitializedOrNull(unsigned numElem
ents, unsigned elementByteSize) |
| 51 { |
| 52 return createOrNull(WTF::ArrayBuffer::createUninitializedOrNull(numEleme
nts, elementByteSize)); |
32 } | 53 } |
33 | 54 |
34 // Only for use by XMLHttpRequest::responseArrayBuffer and | 55 PassRefPtr<DOMArrayBuffer> sliceOrNull(int begin, int end) const |
35 // Internals::serializeObject. | |
36 static PassRefPtr<DOMArrayBuffer> createUninitialized(unsigned numElements,
unsigned elementByteSize) | |
37 { | 56 { |
38 return create(WTF::ArrayBuffer::createUninitialized(numElements, element
ByteSize)); | 57 return createOrNull(buffer()->sliceOrNull(begin, end)); |
39 } | 58 } |
40 | 59 PassRefPtr<DOMArrayBuffer> sliceOrNull(int begin) const |
41 PassRefPtr<DOMArrayBuffer> slice(int begin, int end) const | |
42 { | 60 { |
43 return create(buffer()->slice(begin, end)); | 61 return createOrNull(buffer()->sliceOrNull(begin)); |
44 } | |
45 PassRefPtr<DOMArrayBuffer> slice(int begin) const | |
46 { | |
47 return create(buffer()->slice(begin)); | |
48 } | 62 } |
49 | 63 |
50 v8::Local<v8::Object> wrap(v8::Isolate*, v8::Local<v8::Object> creationConte
xt) override; | 64 v8::Local<v8::Object> wrap(v8::Isolate*, v8::Local<v8::Object> creationConte
xt) override; |
51 | 65 |
52 private: | 66 private: |
53 explicit DOMArrayBuffer(PassRefPtr<WTF::ArrayBuffer> buffer) | 67 explicit DOMArrayBuffer(PassRefPtr<WTF::ArrayBuffer> buffer) |
54 : DOMArrayBufferBase(buffer) | 68 : DOMArrayBufferBase(buffer) |
55 { | 69 { |
56 } | 70 } |
57 }; | 71 }; |
58 | 72 |
59 } // namespace blink | 73 } // namespace blink |
60 | 74 |
61 #endif // DOMArrayBuffer_h | 75 #endif // DOMArrayBuffer_h |
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