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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_H_
#define WEBKIT_APPCACHE_APPCACHE_H_
#include <map>
#include <set>
#include <string>
#include <vector>
#include "base/ref_counted.h"
#include "base/time.h"
#include "googleurl/src/gurl.h"
#include "webkit/appcache/appcache_entry.h"
#include "webkit/appcache/manifest_parser.h"
namespace appcache {
class AppCacheGroup;
class AppCacheHost;
class AppCacheService;
// Set of cached resources for an application. A cache exists as long as a
// host is associated with it, the cache is in an appcache group or the
// cache is being created during an appcache upate.
class AppCache : public base::RefCounted<AppCache> {
public:
AppCache(AppCacheService *service, int64 cache_id);
~AppCache();
int64 cache_id() const { return cache_id_; }
AppCacheGroup* owning_group() const { return owning_group_; }
void set_owning_group(AppCacheGroup* group) { owning_group_ = group; }
bool is_complete() const { return is_complete_; }
void set_complete(bool value) { is_complete_ = value; }
AppCacheService* service() const { return service_; }
// Adds a new entry. Entry must not already be in cache.
void AddEntry(const GURL& url, const AppCacheEntry& entry);
// Adds a new entry or modifies an existing entry by merging the types
// of the new entry with the existing entry.
void AddOrModifyEntry(const GURL& url, const AppCacheEntry& entry);
// Do not store the returned object as it could be deleted anytime.
AppCacheEntry* GetEntry(const GURL& url);
typedef std::map<GURL, AppCacheEntry> EntryMap;
const EntryMap& entries() const { return entries_; }
bool IsNewerThan(AppCache* cache) const {
return update_time_ > cache->update_time_;
}
void set_update_time(base::TimeTicks ticks = base::TimeTicks::Now()) {
update_time_ = ticks;
}
private:
friend class AppCacheHost;
// Use AppCacheHost::AssociateCache() to manipulate host association.
void AssociateHost(AppCacheHost* host) {
associated_hosts_.insert(host);
}
void UnassociateHost(AppCacheHost* host);
const int64 cache_id_;
AppCacheEntry* manifest_; // also in entry map
AppCacheGroup* owning_group_;
std::set<AppCacheHost*> associated_hosts_;
EntryMap entries_; // contains entries of all types
std::vector<FallbackNamespace> fallback_namespaces_;
std::vector<GURL> online_whitelist_namespaces_;
bool online_whitelist_all_;
bool is_complete_;
// when this cache was last updated
base::TimeTicks update_time_;
// to notify service when cache is deleted
AppCacheService* service_;
};
} // namespace appcache
#endif // WEBKIT_APPCACHE_APPCACHE_H_
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