// Copyright © 2019 The CefSharp Authors. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#pragma once
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#include "include/cef_v8.h"
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#include "..\CefSharp.Core.Runtime\Internals\Messaging\Messages.h"
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#include "..\CefSharp.Core.Runtime\Internals\Serialization\Primitives.h"
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#include "Serialization\V8Serialization.h"
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using namespace System;
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using namespace CefSharp::Internals::Messaging;
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using namespace CefSharp::BrowserSubprocess::Serialization;
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namespace CefSharp
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{
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namespace BrowserSubprocess
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{
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const CefString kPostMessage = CefString("PostMessage");
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const CefString kPostMessageCamelCase = CefString("postMessage");
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private class JavascriptPostMessageHandler : public CefV8Handler
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{
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private:
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gcroot<JavascriptCallbackRegistry^> _javascriptCallbackRegistry;
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public:
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JavascriptPostMessageHandler(JavascriptCallbackRegistry^ javascriptCallbackRegistry)
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{
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_javascriptCallbackRegistry = javascriptCallbackRegistry;
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}
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bool Execute(const CefString& name, CefRefPtr<CefV8Value> object, const CefV8ValueList& arguments, CefRefPtr<CefV8Value>& retval, CefString& exception) override
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{
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if (arguments.size() == 0 || arguments.size() > 1)
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{
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//TODO: Improve error message
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exception = "Only a single param is accepted";
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return true;
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}
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auto context = CefV8Context::GetCurrentContext();
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if (context.get())
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{
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auto frame = context->GetFrame();
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if (frame.get() && frame->IsValid() && context->Enter())
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{
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try
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{
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auto global = context->GetGlobal();
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auto request = CefProcessMessage::Create(kJavascriptMessageReceived);
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auto argList = request->GetArgumentList();
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auto params = CefListValue::Create();
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SerializeV8Object(arguments[0], params, 0, _javascriptCallbackRegistry);
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//We're only interested in the first param
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if (params->GetSize() > 0)
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{
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argList->SetValue(0, params->GetValue(0));
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}
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frame->SendProcessMessage(CefProcessId::PID_BROWSER, request);
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retval = CefV8Value::CreateNull();
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}
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finally
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{
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context->Exit();
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}
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}
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else
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{
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exception = "Unable to Enter Context";
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}
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}
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else
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{
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exception = "Unable to get current context";
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}
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return true;
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}
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IMPLEMENT_REFCOUNTINGM(JavascriptPostMessageHandler);
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};
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}
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}
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