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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_HOST_PPAPI_HOST_H_
#define PPAPI_HOST_PPAPI_HOST_H_
#include <map>
#include "base/compiler_specific.h"
#include "base/memory/linked_ptr.h"
#include "ipc/ipc_listener.h"
#include "ipc/ipc_sender.h"
#include "ppapi/c/pp_instance.h"
#include "ppapi/c/pp_resource.h"
#include "ppapi/host/ppapi_host_export.h"
#include "ppapi/shared_impl/ppapi_permissions.h"
namespace ppapi {
namespace proxy {
class ResourceMessageCallParams;
class ResourceMessageReplyParams;
}
namespace host {
class HostFactory;
class ResourceHost;
// The host provides routing and tracking for resource message calls that
// come from the plugin to the host (browser or renderer), and the
// corresponding replies.
class PPAPI_HOST_EXPORT PpapiHost : public IPC::Sender, public IPC::Listener {
public:
// The sender is the channel to the plugin for outgoing messages. The factory
// will be used to receive resource creation messages from the plugin. Both
// pointers are owned by the caller and must outlive this class.
PpapiHost(IPC::Sender* sender,
HostFactory* host_factory,
const PpapiPermissions& perms);
virtual ~PpapiHost();
const PpapiPermissions& permissions() const { return permissions_; }
// Sender implementation. Forwards to the sender_.
virtual bool Send(IPC::Message* msg) OVERRIDE;
// Listener implementation.
virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
// Sends the given reply message to the plugin.
void SendReply(const proxy::ResourceMessageReplyParams& params,
const IPC::Message& msg);
private:
// Message handlers.
void OnHostMsgResourceCall(const proxy::ResourceMessageCallParams& params,
const IPC::Message& nested_msg);
void OnHostMsgResourceCreated(const proxy::ResourceMessageCallParams& param,
PP_Instance instance,
const IPC::Message& nested_msg);
void OnHostMsgResourceDestroyed(PP_Resource resource);
// Returns null if the resource doesn't exist.
host::ResourceHost* GetResourceHost(PP_Resource resource);
// Non-owning pointer.
IPC::Sender* sender_;
// Non-owning pointer.
HostFactory* host_factory_;
PpapiPermissions permissions_;
typedef std::map<PP_Resource, linked_ptr<ResourceHost> > ResourceMap;
ResourceMap resources_;
DISALLOW_COPY_AND_ASSIGN(PpapiHost);
};
} // namespace host
} // namespace ppapi
#endif // PPAPI_HOST_PPAPIE_HOST_H_
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