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// Copyright (c) 2011 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 CONTENT_COMMON_QUOTA_DISPATCHER_H_
#define CONTENT_COMMON_QUOTA_DISPATCHER_H_
#include <map>
#include <set>
#include "base/basictypes.h"
#include "base/id_map.h"
#include "ipc/ipc_channel.h"
#include "webkit/quota/quota_types.h"
class GURL;
namespace IPC {
class Message;
}
namespace WebKit {
class WebStorageQuotaCallbacks;
}
// Dispatches and sends quota related messages sent to/from a child
// process from/to the main browser process. There is one instance
// per child process. Messages are dispatched on the main child thread.
class QuotaDispatcher : public IPC::Channel::Listener {
public:
class Callback {
public:
virtual ~Callback() {}
virtual void DidQueryStorageUsageAndQuota(int64 usage, int64 quota) = 0;
virtual void DidGrantStorageQuota(int64 granted_quota) = 0;
virtual void DidFail(quota::QuotaStatusCode status) = 0;
};
QuotaDispatcher();
virtual ~QuotaDispatcher();
// IPC::Channel::Listener implementation.
virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
void QueryStorageUsageAndQuota(const GURL& gurl,
quota::StorageType type,
Callback* callback);
void RequestStorageQuota(int render_view_id,
const GURL& gurl,
quota::StorageType type,
int64 requested_size,
Callback* callback);
// Creates a new Callback instance for WebStorageQuotaCallbacks.
static Callback* CreateWebStorageQuotaCallbacksWrapper(
WebKit::WebStorageQuotaCallbacks* callbacks);
private:
// Message handlers.
void DidQueryStorageUsageAndQuota(int request_id,
int64 current_usage,
int64 current_quota);
void DidGrantStorageQuota(int request_id,
int64 granted_quota);
void DidFail(int request_id, quota::QuotaStatusCode error);
IDMap<Callback, IDMapOwnPointer> pending_quota_callbacks_;
DISALLOW_COPY_AND_ASSIGN(QuotaDispatcher);
};
#endif // CONTENT_COMMON_QUOTA_DISPATCHER_H_
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