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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 PPAPI_PROXY_PLUGIN_RESOURCE_CALLBACK_H_
#define PPAPI_PROXY_PLUGIN_RESOURCE_CALLBACK_H_
#include "base/memory/ref_counted.h"
#include "ipc/ipc_message.h"
#include "ppapi/proxy/dispatch_reply_message.h"
#include "ppapi/proxy/resource_message_params.h"
namespace ppapi {
namespace proxy {
// |PluginResourceCallback| wraps a |base::Callback| on the plugin side which
// will be triggered in response to a particular message type being received.
// |MsgClass| is the reply message type that the callback will be called with
// and |CallbackType| is the type of the |base::Callback| that will be called.
class PluginResourceCallbackBase
: public base::RefCounted<PluginResourceCallbackBase> {
public:
virtual void Run(const ResourceMessageReplyParams& params,
const IPC::Message& msg) = 0;
protected:
friend class base::RefCounted<PluginResourceCallbackBase>;
virtual ~PluginResourceCallbackBase() {}
};
template<typename MsgClass, typename CallbackType>
class PluginResourceCallback : public PluginResourceCallbackBase {
public:
explicit PluginResourceCallback(const CallbackType& callback)
: callback_(callback) {}
void Run(
const ResourceMessageReplyParams& reply_params,
const IPC::Message& msg) override {
DispatchResourceReplyOrDefaultParams<MsgClass>(
&callback_, &CallbackType::Run, reply_params, msg);
}
private:
~PluginResourceCallback() override {}
CallbackType callback_;
};
} // namespace proxy
} // namespace ppapi
#endif // PPAPI_PROXY_PLUGIN_RESOURCE_CALLBACK_H_
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