webkit/browser/appcache/appcache_service.h

   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.
   4
   5 #ifndef WEBKIT_BROWSER_APPCACHE_APPCACHE_SERVICE_H_
   6 #define WEBKIT_BROWSER_APPCACHE_APPCACHE_SERVICE_H_
   7
   8 #include <map>
   9 #include <set>
  10
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "webkit/browser/webkit_storage_browser_export.h"
  14 #include "webkit/common/appcache/appcache_interfaces.h"
  15
  16 namespace appcache {
  17
  18 class AppCacheStorage;
  19
  20 // Refcounted container to avoid copying the collection in callbacks.
  21 struct WEBKIT_STORAGE_BROWSER_EXPORT AppCacheInfoCollection
  22     : public base::RefCountedThreadSafe<AppCacheInfoCollection> {
  23   AppCacheInfoCollection();
  24
  25   std::map<GURL, AppCacheInfoVector> infos_by_origin;
  26
  27  private:
  28   friend class base::RefCountedThreadSafe<AppCacheInfoCollection>;
  29   virtual ~AppCacheInfoCollection();
  30 };
  31
  32 // Class that manages the application cache service. Sends notifications
  33 // to many frontends. One instance per user-profile. Each instance has
  34 // exclusive access to its cache_directory on disk.
  35 class WEBKIT_STORAGE_BROWSER_EXPORT AppCacheService {
  36  public:
  37   virtual ~AppCacheService() { }
  38
  39   // Determines if a request for 'url' can be satisfied while offline.
  40   // This method always completes asynchronously.
  41   virtual void CanHandleMainResourceOffline(const GURL& url,
  42                                             const GURL& first_party,
  43                                             const net::CompletionCallback&
  44                                             callback) = 0;
  45
  46   // Populates 'collection' with info about all of the appcaches stored
  47   // within the service, 'callback' is invoked upon completion. The service
  48   // acquires a reference to the 'collection' until until completion.
  49   // This method always completes asynchronously.
  50   virtual void GetAllAppCacheInfo(AppCacheInfoCollection* collection,
  51                                   const net::CompletionCallback& callback) = 0;
  52
  53   // Deletes the group identified by 'manifest_url', 'callback' is
  54   // invoked upon completion. Upon completion, the cache group and
  55   // any resources within the group are no longer loadable and all
  56   // subresource loads for pages associated with a deleted group
  57   // will fail. This method always completes asynchronously.
  58   virtual void DeleteAppCacheGroup(const GURL& manifest_url,
  59                                    const net::CompletionCallback& callback) = 0;
  60 };
  61
  62 }  // namespace appcache
  63
  64 #endif  // WEBKIT_BROWSER_APPCACHE_APPCACHE_SERVICE_H_