1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef WEBKIT_BROWSER_APPCACHE_APPCACHE_QUOTA_CLIENT_H_
6 #define WEBKIT_BROWSER_APPCACHE_APPCACHE_QUOTA_CLIENT_H_
12 #include "base/gtest_prod_util.h"
13 #include "base/memory/ref_counted.h"
14 #include "base/memory/scoped_ptr.h"
15 #include "net/base/completion_callback.h"
16 #include "webkit/browser/appcache/appcache_storage.h"
17 #include "webkit/browser/quota/quota_client.h"
18 #include "webkit/browser/quota/quota_task.h"
19 #include "webkit/browser/webkit_storage_browser_export.h"
20 #include "webkit/common/quota/quota_types.h"
24 class AppCacheService;
25 class AppCacheStorageImpl;
26 class AppCacheQuotaClientTest;
28 // A QuotaClient implementation to integrate the appcache service
29 // with the quota management system. The QuotaClient interface is
30 // used on the IO thread by the quota manager. This class deletes
31 // itself when both the quota manager and the appcache service have
33 class AppCacheQuotaClient : public quota::QuotaClient {
35 typedef std::deque<base::Closure> RequestQueue;
37 virtual ~AppCacheQuotaClient();
39 // QuotaClient method overrides
40 virtual ID id() const OVERRIDE;
41 virtual void OnQuotaManagerDestroyed() OVERRIDE;
42 virtual void GetOriginUsage(const GURL& origin,
43 quota::StorageType type,
44 const GetUsageCallback& callback) OVERRIDE;
45 virtual void GetOriginsForType(quota::StorageType type,
46 const GetOriginsCallback& callback) OVERRIDE;
47 virtual void GetOriginsForHost(quota::StorageType type,
48 const std::string& host,
49 const GetOriginsCallback& callback) OVERRIDE;
50 virtual void DeleteOriginData(const GURL& origin,
51 quota::StorageType type,
52 const DeletionCallback& callback) OVERRIDE;
53 virtual bool DoesSupport(quota::StorageType type) const OVERRIDE;
56 friend class AppCacheService; // for NotifyAppCacheIsDestroyed
57 friend class AppCacheStorageImpl; // for NotifyAppCacheIsReady
58 friend class AppCacheQuotaClientTest;
60 WEBKIT_STORAGE_BROWSER_EXPORT
61 explicit AppCacheQuotaClient(AppCacheService* service);
63 void DidDeleteAppCachesForOrigin(int rv);
64 void GetOriginsHelper(quota::StorageType type,
65 const std::string& opt_host,
66 const GetOriginsCallback& callback);
67 void ProcessPendingRequests();
68 void DeletePendingRequests();
69 const AppCacheStorage::UsageMap* GetUsageMap();
70 net::CancelableCompletionCallback* GetServiceDeleteCallback();
72 // For use by appcache internals during initialization and shutdown.
73 WEBKIT_STORAGE_BROWSER_EXPORT void NotifyAppCacheReady();
74 WEBKIT_STORAGE_BROWSER_EXPORT void NotifyAppCacheDestroyed();
76 // Prior to appcache service being ready, we have to queue
77 // up reqeusts and defer acting on them until we're ready.
78 RequestQueue pending_batch_requests_;
79 RequestQueue pending_serial_requests_;
81 // And once it's ready, we can only handle one delete request at a time,
82 // so we queue up additional requests while one is in already in progress.
83 DeletionCallback current_delete_request_callback_;
84 scoped_ptr<net::CancelableCompletionCallback> service_delete_callback_;
86 AppCacheService* service_;
87 bool appcache_is_ready_;
88 bool quota_manager_is_destroyed_;
90 DISALLOW_COPY_AND_ASSIGN(AppCacheQuotaClient);
93 } // namespace appcache
95 #endif // WEBKIT_BROWSER_APPCACHE_APPCACHE_QUOTA_CLIENT_H_