2 * Copyright (C) 2009 Google Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
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11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
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16 * this software without specific prior written permission.
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21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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33 #include "ExceptionCode.h"
34 #include "MessagePort.h"
35 #include "SerializedScriptValue.h"
36 #include "V8Binding.h"
37 #include "V8MessagePortCustom.h"
38 #include "V8MessagePort.h"
40 #include "V8Utilities.h"
41 #include "WorkerContextExecutionProxy.h"
45 v8::Handle<v8::Value> V8MessagePort::postMessageCallback(const v8::Arguments& args)
47 INC_STATS("DOM.MessagePort.postMessage");
48 MessagePort* messagePort = V8MessagePort::toNative(args.Holder());
49 bool didThrow = false;
50 RefPtr<SerializedScriptValue> message = SerializedScriptValue::create(args[0], didThrow);
52 return v8::Undefined();
53 MessagePortArray portArray;
54 if (args.Length() > 1) {
55 if (!getMessagePortArray(args[1], portArray))
56 return v8::Undefined();
59 messagePort->postMessage(message.release(), &portArray, ec);
60 return throwError(ec);
63 bool getMessagePortArray(v8::Local<v8::Value> value, MessagePortArray& portArray)
65 if (isUndefinedOrNull(value)) {
70 if (!value->IsObject()) {
71 throwError("MessagePortArray argument must be an object");
75 v8::Local<v8::Object> ports = v8::Local<v8::Object>::Cast(value);
77 if (value->IsArray()) {
78 v8::Local<v8::Array> array = v8::Local<v8::Array>::Cast(value);
79 length = array->Length();
81 // Sequence-type object - get the length attribute
82 v8::Local<v8::Value> sequenceLength = ports->Get(v8::String::New("length"));
83 if (!sequenceLength->IsNumber()) {
84 throwError("MessagePortArray argument has no length attribute");
87 length = sequenceLength->Uint32Value();
90 // Validate the passed array of ports.
91 for (unsigned int i = 0; i < length; ++i) {
92 v8::Local<v8::Value> port = ports->Get(i);
93 // Validation of non-null objects, per HTML5 spec 10.3.3.
94 if (isUndefinedOrNull(port)) {
95 throwError(DATA_CLONE_ERR);
98 // Validation of Objects implementing an interface, per WebIDL spec 4.1.15.
99 if (!V8MessagePort::HasInstance(port)) {
100 throwError("MessagePortArray argument must contain only MessagePorts");
103 portArray.append(V8MessagePort::toNative(v8::Handle<v8::Object>::Cast(port)));
108 } // namespace WebCore