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31 #ifndef JSMessagePortCustom_h
32 #define JSMessagePortCustom_h
34 #include "MessagePort.h"
35 #include <runtime/JSValue.h>
36 #include <wtf/Forward.h>
40 typedef int ExceptionCode;
42 // Helper function which pulls the values out of a JS sequence and into a MessagePortArray.
43 // Also validates the elements per sections 4.1.13 and 4.1.15 of the WebIDL spec and section 8.3.3 of the HTML5 spec.
44 // May generate an exception via the passed ExecState.
45 void fillMessagePortArray(JSC::ExecState*, JSC::JSValue, MessagePortArray&);
47 // Helper function to convert from JS postMessage arguments to WebCore postMessage arguments.
49 inline JSC::JSValue handlePostMessage(JSC::ExecState* exec, T* impl)
51 RefPtr<SerializedScriptValue> message = SerializedScriptValue::create(exec, exec->argument(0));
52 MessagePortArray portArray;
53 fillMessagePortArray(exec, exec->argument(1), portArray);
54 if (exec->hadException())
55 return JSC::jsUndefined();
58 impl->postMessage(message.release(), &portArray, ec);
59 setDOMException(exec, ec);
60 return JSC::jsUndefined();
64 #endif // JSMessagePortCustom_h