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Side by Side Diff: Source/core/html/canvas/DataView.h

Issue 606653006: bindings: Adds DOMArrayBuffer, etc. as thin wrappers for ArrayBuffer, etc. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Synced. Created 6 years, 2 months ago
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1 /* 1 /*
2 * Copyright (C) 2010 Google Inc. All rights reserved. 2 * Copyright (C) 2010 Google Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 7 *
8 * 1. Redistributions of source code must retain the above copyright 8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright 10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the 11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution. 12 * documentation and/or other materials provided with the distribution.
13 * 13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */ 24 */
25 25
26 #ifndef DataView_h 26 #ifndef DataView_h
27 #define DataView_h 27 #define DataView_h
28 28
29 #include "bindings/core/v8/ScriptWrappable.h"
30 #include "wtf/ArrayBufferView.h" 29 #include "wtf/ArrayBufferView.h"
31 #include "wtf/PassRefPtr.h"
32 30
33 namespace blink { 31 namespace blink {
34 32
35 class ExceptionState; 33 class ExceptionState;
36 34
37 class DataView final : public ArrayBufferView, public ScriptWrappable { 35 class DataView final : public ArrayBufferView {
38 DEFINE_WRAPPERTYPEINFO();
39 public: 36 public:
40 static PassRefPtr<DataView> create(unsigned length); 37 static PassRefPtr<DataView> create(unsigned length);
41 static PassRefPtr<DataView> create(PassRefPtr<ArrayBuffer>, unsigned byteOff set, unsigned byteLength); 38 static PassRefPtr<DataView> create(PassRefPtr<ArrayBuffer>, unsigned byteOff set, unsigned byteLength);
42 39
43 virtual unsigned byteLength() const override { return m_byteLength; } 40 virtual unsigned byteLength() const override { return m_byteLength; }
41 virtual ViewType type() const override { return TypeDataView; }
44 42
45 int8_t getInt8(unsigned byteOffset, ExceptionState&); 43 int8_t getInt8(unsigned byteOffset, ExceptionState&);
46 uint8_t getUint8(unsigned byteOffset, ExceptionState&); 44 uint8_t getUint8(unsigned byteOffset, ExceptionState&);
47 int16_t getInt16(unsigned byteOffset, ExceptionState& ec) { return getInt16( byteOffset, false, ec); } 45 int16_t getInt16(unsigned byteOffset, ExceptionState& ec) { return getInt16( byteOffset, false, ec); }
48 int16_t getInt16(unsigned byteOffset, bool littleEndian, ExceptionState&); 46 int16_t getInt16(unsigned byteOffset, bool littleEndian, ExceptionState&);
49 uint16_t getUint16(unsigned byteOffset, ExceptionState& ec) { return getUint 16(byteOffset, false, ec); } 47 uint16_t getUint16(unsigned byteOffset, ExceptionState& ec) { return getUint 16(byteOffset, false, ec); }
50 uint16_t getUint16(unsigned byteOffset, bool littleEndian, ExceptionState&); 48 uint16_t getUint16(unsigned byteOffset, bool littleEndian, ExceptionState&);
51 int32_t getInt32(unsigned byteOffset, ExceptionState& ec) { return getInt32( byteOffset, false, ec); } 49 int32_t getInt32(unsigned byteOffset, ExceptionState& ec) { return getInt32( byteOffset, false, ec); }
52 int32_t getInt32(unsigned byteOffset, bool littleEndian, ExceptionState&); 50 int32_t getInt32(unsigned byteOffset, bool littleEndian, ExceptionState&);
53 uint32_t getUint32(unsigned byteOffset, ExceptionState& ec) { return getUint 32(byteOffset, false, ec); } 51 uint32_t getUint32(unsigned byteOffset, ExceptionState& ec) { return getUint 32(byteOffset, false, ec); }
(...skipping 11 matching lines...) Expand all
65 void setUint16(unsigned byteOffset, uint16_t value, bool littleEndian, Excep tionState&); 63 void setUint16(unsigned byteOffset, uint16_t value, bool littleEndian, Excep tionState&);
66 void setInt32(unsigned byteOffset, int32_t value, ExceptionState& ec) { setI nt32(byteOffset, value, false, ec); } 64 void setInt32(unsigned byteOffset, int32_t value, ExceptionState& ec) { setI nt32(byteOffset, value, false, ec); }
67 void setInt32(unsigned byteOffset, int32_t value, bool littleEndian, Excepti onState&); 65 void setInt32(unsigned byteOffset, int32_t value, bool littleEndian, Excepti onState&);
68 void setUint32(unsigned byteOffset, uint32_t value, ExceptionState& ec) { se tUint32(byteOffset, value, false, ec); } 66 void setUint32(unsigned byteOffset, uint32_t value, ExceptionState& ec) { se tUint32(byteOffset, value, false, ec); }
69 void setUint32(unsigned byteOffset, uint32_t value, bool littleEndian, Excep tionState&); 67 void setUint32(unsigned byteOffset, uint32_t value, bool littleEndian, Excep tionState&);
70 void setFloat32(unsigned byteOffset, float value, ExceptionState& ec) { setF loat32(byteOffset, value, false, ec); } 68 void setFloat32(unsigned byteOffset, float value, ExceptionState& ec) { setF loat32(byteOffset, value, false, ec); }
71 void setFloat32(unsigned byteOffset, float value, bool littleEndian, Excepti onState&); 69 void setFloat32(unsigned byteOffset, float value, bool littleEndian, Excepti onState&);
72 void setFloat64(unsigned byteOffset, double value, ExceptionState& ec) { set Float64(byteOffset, value, false, ec); } 70 void setFloat64(unsigned byteOffset, double value, ExceptionState& ec) { set Float64(byteOffset, value, false, ec); }
73 void setFloat64(unsigned byteOffset, double value, bool littleEndian, Except ionState&); 71 void setFloat64(unsigned byteOffset, double value, bool littleEndian, Except ionState&);
74 72
75 virtual ViewType type() const override
76 {
77 return TypeDataView;
78 }
79
80 virtual v8::Handle<v8::Object> wrap(v8::Handle<v8::Object> creationContext, v8::Isolate*) override;
81
82 protected: 73 protected:
83 virtual void neuter() override; 74 virtual void neuter() override;
84 75
85 private: 76 private:
86 DataView(PassRefPtr<ArrayBuffer>, unsigned byteOffset, unsigned byteLength); 77 DataView(PassRefPtr<ArrayBuffer>, unsigned byteOffset, unsigned byteLength);
87 78
88 template<typename T> 79 template<typename T>
89 inline bool beyondRange(unsigned byteOffset) const { return byteOffset >= m_ byteLength || byteOffset + sizeof(T) > m_byteLength; } 80 bool beyondRange(unsigned byteOffset) const { return byteOffset >= m_byteLen gth || byteOffset + sizeof(T) > m_byteLength; }
90 81
91 template<typename T> 82 template<typename T>
92 T getData(unsigned byteOffset, bool littleEndian, ExceptionState&) const; 83 T getData(unsigned byteOffset, bool littleEndian, ExceptionState&) const;
93 84
94 template<typename T> 85 template<typename T>
95 void setData(unsigned byteOffset, T value, bool littleEndian, ExceptionState &); 86 void setData(unsigned byteOffset, T value, bool littleEndian, ExceptionState &);
96 87
97 unsigned m_byteLength; 88 unsigned m_byteLength;
98 }; 89 };
99 90
100 } // namespace blink 91 } // namespace blink
101 92
102 #endif // DataView_h 93 #endif // DataView_h
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