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
3// found in the LICENSE file.
4
5#ifndef PostMessage_h
6#define PostMessage_h
7
8#include "bindings/core/v8/ExceptionState.h"
9#include "bindings/core/v8/SerializedScriptValue.h"
10#include "bindings/core/v8/V8Binding.h"
11#include "bindings/core/v8/V8BindingMacros.h"
12#include "core/dom/MessagePort.h"
13#include "wtf/ArrayBuffer.h"
14#include <v8.h>
15
16namespace blink {
17
18class ExecutionContext;
19
20// FIXME: This should be auto-generated by a code generator template.
21template <class Type>
22void postMessageMethodCommon(const char* interfaceName, Type* instance, const v8::FunctionCallbackInfo<v8::Value>& info)
23{
24    ExceptionState exceptionState(ExceptionState::ExecutionContext, "postMessage", interfaceName, info.Holder(), info.GetIsolate());
25    MessagePortArray ports;
26    ArrayBufferArray arrayBuffers;
27    if (info.Length() > 1) {
28        const int transferablesArgIndex = 1;
29        if (!SerializedScriptValue::extractTransferables(info[transferablesArgIndex], transferablesArgIndex, ports, arrayBuffers, exceptionState, info.GetIsolate())) {
30            exceptionState.throwIfNeeded();
31            return;
32        }
33    }
34    RefPtr<SerializedScriptValue> message = SerializedScriptValue::create(info[0], &ports, &arrayBuffers, exceptionState, info.GetIsolate());
35    if (exceptionState.throwIfNeeded())
36        return;
37    // FIXME: Only pass context/exceptionState if instance really requires it.
38    ExecutionContext* context = currentExecutionContext(info.GetIsolate());
39    instance->postMessage(context, message.release(), &ports, exceptionState);
40    exceptionState.throwIfNeeded();
41}
42
43} // namespace blink
44
45#endif // PostMessage_h
46