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32 #include "V8MessageChannel.h"
36 #include "MessageChannel.h"
37 #include "V8Binding.h"
38 #include "V8MessagePort.h"
40 #include "V8Utilities.h"
41 #include "WorkerContext.h"
42 #include "WorkerContextExecutionProxy.h"
44 #include <wtf/RefPtr.h>
48 v8::Handle<v8::Value> V8MessageChannel::constructorCallback(const v8::Arguments& args)
50 INC_STATS("DOM.MessageChannel.Constructor");
51 // FIXME: The logic here is almost exact duplicate of V8::constructDOMObject.
52 // Consider refactoring to reduce duplication.
53 if (!args.IsConstructCall())
54 return throwError("DOM object constructor cannot be called as a function.", V8Proxy::TypeError);
56 // Get the ScriptExecutionContext (WorkerContext or Document)
57 ScriptExecutionContext* context = getScriptExecutionContext();
59 return v8::Undefined();
61 // Note: it's OK to let this RefPtr go out of scope because we also call
62 // SetDOMWrapper(), which effectively holds a reference to obj.
63 RefPtr<MessageChannel> obj = MessageChannel::create(context);
65 v8::Local<v8::Object> messageChannel = args.Holder();
67 // Create references from the MessageChannel wrapper to the two
68 // MessagePort wrappers to make sure that the MessagePort wrappers
69 // stay alive as long as the MessageChannel wrapper is around.
70 V8DOMWrapper::setNamedHiddenReference(messageChannel, "port1", toV8(obj->port1()));
71 V8DOMWrapper::setNamedHiddenReference(messageChannel, "port2", toV8(obj->port2()));
73 // Setup the standard wrapper object internal fields.
74 V8DOMWrapper::setDOMWrapper(messageChannel, &info, obj.get());
75 return toV8(obj.release(), messageChannel);
79 } // namespace WebCore