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// Copyright (c) 2012 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.
#ifndef CHROME_RENDERER_NATIVE_HANDLER_H_
#define CHROME_RENDERER_NATIVE_HANDLER_H_
#pragma once
#include "base/bind.h"
#include "base/memory/linked_ptr.h"
#include "v8/include/v8.h"
#include <string>
#include <vector>
// A NativeHandler is a factory for JS objects with functions on them that map
// to native C++ functions. Subclasses should call RouteFunction() in their
// constructor to define functions on the created JS objects.
class NativeHandler {
public:
explicit NativeHandler();
virtual ~NativeHandler();
// Create an object with bindings to the native functions defined through
// RouteFunction().
v8::Handle<v8::Object> NewInstance();
protected:
typedef base::Callback<v8::Handle<v8::Value>(const v8::Arguments&)>
HandlerFunction;
// Installs a new 'route' from |name| to |handler_function|. This means that
// NewInstance()s of this NativeHandler will have a property |name| which
// will be handled by |handler_function|.
void RouteFunction(const std::string& name,
const HandlerFunction& handler_function);
private:
static v8::Handle<v8::Value> Router(const v8::Arguments& args);
std::vector<linked_ptr<HandlerFunction> > handler_functions_;
v8::Handle<v8::ObjectTemplate> object_template_;
DISALLOW_COPY_AND_ASSIGN(NativeHandler);
};
#endif // CHROME_RENDERER_NATIVE_HANDLER_H_
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