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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 #include "bindings/modules/v8/SerializedScriptValueForModulesFactory.h" | 5 #include "bindings/modules/v8/SerializedScriptValueForModulesFactory.h" |
6 | 6 |
7 #include "bindings/core/v8/ExceptionState.h" | 7 #include "bindings/core/v8/ExceptionState.h" |
8 #include "bindings/core/v8/SerializedScriptValue.h" | 8 #include "bindings/core/v8/SerializedScriptValue.h" |
9 #include "bindings/modules/v8/ScriptValueSerializerForModules.h" | 9 #include "bindings/modules/v8/ScriptValueSerializerForModules.h" |
10 #include "bindings/modules/v8/TransferablesForModules.h" | |
11 #include "bindings/modules/v8/V8OffscreenCanvas.h" | |
10 #include "core/dom/ExceptionCode.h" | 12 #include "core/dom/ExceptionCode.h" |
11 | 13 |
12 namespace blink { | 14 namespace blink { |
13 | 15 |
14 PassRefPtr<SerializedScriptValue> SerializedScriptValueForModulesFactory::create (v8::Isolate* isolate, v8::Local<v8::Value> value, Transferables* transferables, WebBlobInfoArray* blobInfo, ExceptionState& exceptionState) | 16 PassRefPtr<SerializedScriptValue> SerializedScriptValueForModulesFactory::create (v8::Isolate* isolate, v8::Local<v8::Value> value, Transferables* transferables, WebBlobInfoArray* blobInfo, ExceptionState& exceptionState) |
15 { | 17 { |
16 RefPtr<SerializedScriptValue> serializedValue = SerializedScriptValueFactory ::create(); | 18 RefPtr<SerializedScriptValue> serializedValue = SerializedScriptValueFactory ::create(); |
17 SerializedScriptValueWriterForModules writer; | 19 SerializedScriptValueWriterForModules writer; |
18 ScriptValueSerializer::Status status; | 20 ScriptValueSerializer::Status status; |
19 String errorMessage; | 21 String errorMessage; |
(...skipping 23 matching lines...) Expand all Loading... | |
43 } | 45 } |
44 | 46 |
45 PassRefPtr<SerializedScriptValue> SerializedScriptValueForModulesFactory::create (v8::Isolate* isolate, const String& data) | 47 PassRefPtr<SerializedScriptValue> SerializedScriptValueForModulesFactory::create (v8::Isolate* isolate, const String& data) |
46 { | 48 { |
47 SerializedScriptValueWriterForModules writer; | 49 SerializedScriptValueWriterForModules writer; |
48 writer.writeWebCoreString(data); | 50 writer.writeWebCoreString(data); |
49 String wireData = writer.takeWireString(); | 51 String wireData = writer.takeWireString(); |
50 return createFromWire(wireData); | 52 return createFromWire(wireData); |
51 } | 53 } |
52 | 54 |
55 void SerializedScriptValueForModulesFactory::transferData(SerializedScriptValue* serializedValue, SerializedScriptValueWriter& writer, Transferables* transferab les, ExceptionState& exceptionState, v8::Isolate* isolate) | |
56 { | |
57 serializedValue->setData(writer.takeWireString()); | |
58 ASSERT(serializedValue->data().impl()->hasOneRef()); | |
59 if (!transferables) | |
60 return; | |
61 auto& offscreenCanvases = static_cast<TransferablesForModules*>(transferable s)->offscreenCanvases; | |
62 if (offscreenCanvases.size()) { | |
63 HeapHashSet<Member<OffscreenCanvas>> visited; | |
64 for (size_t i = 0; i < offscreenCanvases.size(); i++) { | |
65 if (offscreenCanvases[i]->isNeutered()) { | |
66 exceptionState.throwDOMException(DataCloneError, "OffscreenCanva s at index " + String::number(i) + " is already neutered."); | |
67 return; | |
68 } | |
69 if (offscreenCanvases[i]->renderingContext()) { | |
70 exceptionState.throwDOMException(DataCloneError, "OffscreenCanva s at index " + String::number(i) + " has an associated context."); | |
71 return; | |
72 } | |
73 if (visited.contains(offscreenCanvases[i].get())) | |
74 continue; | |
75 visited.add(offscreenCanvases[i].get()); | |
76 offscreenCanvases[i].get()->setNeutered(); | |
77 } | |
78 } | |
79 SerializedScriptValueFactory::transferData(serializedValue, writer, transfer ables, exceptionState, isolate); | |
80 } | |
81 | |
53 ScriptValueSerializer::Status SerializedScriptValueForModulesFactory::doSerializ e(v8::Local<v8::Value> value, SerializedScriptValueWriter& writer, Transferables * transferables, WebBlobInfoArray* blobInfo, BlobDataHandleMap& blobDataHandles, v8::TryCatch& tryCatch, String& errorMessage, v8::Isolate* isolate) | 82 ScriptValueSerializer::Status SerializedScriptValueForModulesFactory::doSerializ e(v8::Local<v8::Value> value, SerializedScriptValueWriter& writer, Transferables * transferables, WebBlobInfoArray* blobInfo, BlobDataHandleMap& blobDataHandles, v8::TryCatch& tryCatch, String& errorMessage, v8::Isolate* isolate) |
54 { | 83 { |
55 ScriptValueSerializerForModules serializer(writer, transferables, blobInfo, blobDataHandles, tryCatch, ScriptState::current(isolate)); | 84 ScriptValueSerializerForModules serializer(writer, transferables, blobInfo, blobDataHandles, tryCatch, ScriptState::current(isolate)); |
56 ScriptValueSerializer::Status status = serializer.serialize(value); | 85 ScriptValueSerializer::Status status = serializer.serialize(value); |
57 errorMessage = serializer.errorMessage(); | 86 errorMessage = serializer.errorMessage(); |
58 return status; | 87 return status; |
59 } | 88 } |
60 | 89 |
61 v8::Local<v8::Value> SerializedScriptValueForModulesFactory::deserialize(String& data, BlobDataHandleMap& blobDataHandles, ArrayBufferContentsArray* arrayBuffer ContentsArray, ImageBitmapContentsArray* imageBitmapContentsArray, v8::Isolate* isolate, MessagePortArray* messagePorts, const WebBlobInfoArray* blobInfo) | 90 v8::Local<v8::Value> SerializedScriptValueForModulesFactory::deserialize(String& data, BlobDataHandleMap& blobDataHandles, ArrayBufferContentsArray* arrayBuffer ContentsArray, ImageBitmapContentsArray* imageBitmapContentsArray, v8::Isolate* isolate, MessagePortArray* messagePorts, const WebBlobInfoArray* blobInfo) |
62 { | 91 { |
63 if (!data.impl()) | 92 if (!data.impl()) |
64 return v8::Null(isolate); | 93 return v8::Null(isolate); |
65 static_assert(sizeof(SerializedScriptValueWriter::BufferValueType) == 2, "Bu fferValueType should be 2 bytes"); | 94 static_assert(sizeof(SerializedScriptValueWriter::BufferValueType) == 2, "Bu fferValueType should be 2 bytes"); |
66 data.ensure16Bit(); | 95 data.ensure16Bit(); |
67 // FIXME: SerializedScriptValue shouldn't use String for its underlying | 96 // FIXME: SerializedScriptValue shouldn't use String for its underlying |
68 // storage. Instead, it should use SharedBuffer or Vector<uint8_t>. The | 97 // storage. Instead, it should use SharedBuffer or Vector<uint8_t>. The |
69 // information stored in m_data isn't even encoded in UTF-16. Instead, | 98 // information stored in m_data isn't even encoded in UTF-16. Instead, |
70 // unicode characters are encoded as UTF-8 with two code units per UChar. | 99 // unicode characters are encoded as UTF-8 with two code units per UChar. |
71 SerializedScriptValueReaderForModules reader(reinterpret_cast<const uint8_t* >(data.impl()->characters16()), 2 * data.length(), blobInfo, blobDataHandles, Sc riptState::current(isolate)); | 100 SerializedScriptValueReaderForModules reader(reinterpret_cast<const uint8_t* >(data.impl()->characters16()), 2 * data.length(), blobInfo, blobDataHandles, Sc riptState::current(isolate)); |
72 ScriptValueDeserializerForModules deserializer(reader, messagePorts, arrayBu fferContentsArray, imageBitmapContentsArray); | 101 ScriptValueDeserializerForModules deserializer(reader, messagePorts, arrayBu fferContentsArray, imageBitmapContentsArray); |
73 return deserializer.deserialize(); | 102 return deserializer.deserialize(); |
74 } | 103 } |
75 | 104 |
105 bool SerializedScriptValueForModulesFactory::extractTransferables(v8::Isolate* i solate, Transferables& transferables, ExceptionState& exceptionState, v8::Local< v8::Value>& transferableObject, unsigned i) | |
haraken
2016/04/21 00:29:03
i => index
xidachen
2016/04/21 15:32:48
Done.
| |
106 { | |
107 if (SerializedScriptValueFactory::extractTransferables(isolate, transferable s, exceptionState, transferableObject, i)) | |
108 return true; | |
109 if (V8OffscreenCanvas::hasInstance(transferableObject, isolate)) { | |
110 OffscreenCanvas* offscreenCanvas = V8OffscreenCanvas::toImpl(v8::Local<v 8::Object>::Cast(transferableObject)); | |
111 auto& offscreenCanvases = static_cast<TransferablesForModules*>(&transfe rables)->offscreenCanvases; | |
112 if (offscreenCanvases.contains(offscreenCanvas)) { | |
113 exceptionState.throwDOMException(DataCloneError, "OffscreenCanvas at index " + String::number(i) + " is a duplicate of an earlier OffscreenCanvas.") ; | |
114 return false; | |
115 } | |
116 offscreenCanvases.append(offscreenCanvas); | |
117 return true; | |
118 } | |
119 return false; | |
120 } | |
121 | |
76 } // namespace blink | 122 } // namespace blink |
77 | 123 |
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