Home | History | Annotate | Download | only in browser 
      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 CONTENT_PUBLIC_BROWSER_APPCACHE_SERVICE_H_
      6 #define CONTENT_PUBLIC_BROWSER_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 "content/common/content_export.h"
     14 #include "content/public/common/appcache_info.h"
     15 #include "net/base/completion_callback.h"
     16 
     17 namespace content {
     18 
     19 class AppCacheStorage;
     20 
     21 // Refcounted container to avoid copying the collection in callbacks.
     22 struct CONTENT_EXPORT AppCacheInfoCollection
     23     : public base::RefCountedThreadSafe<AppCacheInfoCollection> {
     24   AppCacheInfoCollection();
     25 
     26   std::map<GURL, AppCacheInfoVector> infos_by_origin;
     27 
     28  private:
     29   friend class base::RefCountedThreadSafe<AppCacheInfoCollection>;
     30   virtual ~AppCacheInfoCollection();
     31 };
     32 
     33 // Exposes a limited interface to the AppCacheService.
     34 // Call these methods only on the IO thread.
     35 class CONTENT_EXPORT AppCacheService {
     36  public:
     37   // Determines if a request for 'url' can be satisfied while offline.
     38   // This method always completes asynchronously.
     39   virtual void CanHandleMainResourceOffline(const GURL& url,
     40                                             const GURL& first_party,
     41                                             const net::CompletionCallback&
     42                                             callback) = 0;
     43 
     44   // Populates 'collection' with info about all of the appcaches stored
     45   // within the service, 'callback' is invoked upon completion. The service
     46   // acquires a reference to the 'collection' until until completion.
     47   // This method always completes asynchronously.
     48   virtual void GetAllAppCacheInfo(AppCacheInfoCollection* collection,
     49                                   const net::CompletionCallback& callback) = 0;
     50 
     51   // Deletes the group identified by 'manifest_url', 'callback' is
     52   // invoked upon completion. Upon completion, the cache group and
     53   // any resources within the group are no longer loadable and all
     54   // subresource loads for pages associated with a deleted group
     55   // will fail. This method always completes asynchronously.
     56   virtual void DeleteAppCacheGroup(const GURL& manifest_url,
     57                                    const net::CompletionCallback& callback) = 0;
     58 
     59  protected:
     60   virtual ~AppCacheService() {}
     61 };
     62 
     63 }  // namespace content
     64 
     65 #endif  // CONTENT_PUBLIC_BROWSER_APPCACHE_SERVICE_H_
     66