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// Copyright (c) 2009 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 WEBKIT_APPCACHE_APPCACHE_GROUP_H_
#define WEBKIT_APPCACHE_APPCACHE_GROUP_H_
#include <vector>
#include "base/ref_counted.h"
#include "googleurl/src/gurl.h"
namespace appcache {
class AppCache;
class AppCacheService;
// Collection of application caches identified by the same manifest URL.
// A group exists as long as it is in use by a host or is being updated.
class AppCacheGroup : public base::RefCounted<AppCacheGroup> {
public:
enum UpdateStatus {
IDLE,
CHECKING,
DOWNLOADING,
};
AppCacheGroup(AppCacheService* service, const GURL& manifest_url);
~AppCacheGroup();
const GURL& manifest_url() { return manifest_url_; }
UpdateStatus update_status() { return update_status_; }
void set_update_status(UpdateStatus status) { update_status_ = status; }
bool is_obsolete() { return is_obsolete_; }
void set_obsolete(bool value) { is_obsolete_ = value; }
AppCache* newest_complete_cache() { return newest_complete_cache_; }
void AddCache(AppCache* complete_cache);
// Returns false if cache cannot be removed. The newest complete cache
// cannot be removed as long as the group is still in use.
bool RemoveCache(AppCache* cache);
private:
GURL manifest_url_;
UpdateStatus update_status_;
bool is_obsolete_;
// old complete app caches
typedef std::vector<scoped_refptr<AppCache> > Caches;
Caches old_caches_;
// newest cache in this group to be complete, aka relevant cache
scoped_refptr<AppCache> newest_complete_cache_;
// to notify service when group is no longer needed
AppCacheService* service_;
};
} // namespace appcache
#endif // WEBKIT_APPCACHE_APPCACHE_GROUP_H_
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