Implement ServiceWorker::postMessage() [Blink]

Source/bindings/v8/custom/V8ServiceWorkerCustom.cpp

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+#include "V8ServiceWorker.h"
+
+#include "bindings/v8/ExceptionMessages.h"
+#include "bindings/v8/ExceptionState.h"
+#include "bindings/v8/SerializedScriptValue.h"
+#include "bindings/v8/V8Binding.h"
+#include "core/dom/MessagePort.h"
+#include "modules/serviceworkers/ServiceWorker.h"
+#include "wtf/ArrayBuffer.h"
+
+namespace WebCore {
+
+void V8ServiceWorker::postMessageMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    ExceptionState exceptionState(ExceptionState::ExecutionContext, "postMessage", "ServiceWorker", info.Holder(), info.GetIsolate());
+    ServiceWorker* worker = V8ServiceWorker::toNative(info.Holder());
+    MessagePortArray ports;
+    ArrayBufferArray arrayBuffers;
+    if (info.Length() > 1) {
+        const int transferablesArgIndex = 1;
+        if (!SerializedScriptValue::extractTransferables(info[transferablesArgIndex], transferablesArgIndex, ports, arrayBuffers, exceptionState, info.GetIsolate())) {
+            exceptionState.throwIfNeeded();
+            return;
+        }
+    }
+    RefPtr<SerializedScriptValue> message = SerializedScriptValue::create(info[0], &ports, &arrayBuffers, exceptionState, info.GetIsolate());
+    if (exceptionState.throwIfNeeded())
+        return;
+    worker->postMessage(message.release(), &ports, exceptionState);
+    exceptionState.throwIfNeeded();
+}
+
+} // namespace WebCore