content/browser/service_worker/service_worker_script_cache_map.h

   1 // Copyright 2014 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_BROWSER_SERVICE_WORKER_SERVICE_WORKER_SCRIPT_CACHE_MAP_H_
   6 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_SCRIPT_CACHE_MAP_H_
   7
   8 #include <map>
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "content/browser/service_worker/service_worker_database.h"
  14 #include "content/common/content_export.h"
  15
  16 class GURL;
  17
  18 namespace content {
  19
  20 class ServiceWorkerContextCore;
  21 class ServiceWorkerVersion;
  22
  23 // Class that maintains the mapping between urls and a resource id
  24 // for a particular version's implicit script resources.
  25 class CONTENT_EXPORT ServiceWorkerScriptCacheMap {
  26  public:
  27   int64 Lookup(const GURL& url);
  28
  29   // Used during the initial run of a new version to build the map
  30   // of resources ids.
  31   void NotifyStartedCaching(const GURL& url, int64 resource_id);
  32   void NotifyFinishedCaching(const GURL& url, bool success);
  33
  34   // Used to retrieve the results of the initial run of a new version.
  35   bool HasError() const { return has_error_; }
  36   void GetResources(
  37       std::vector<ServiceWorkerDatabase::ResourceRecord>* resources);
  38
  39   // Used when loading an existing version.
  40   void SetResources(
  41      const std::vector<ServiceWorkerDatabase::ResourceRecord>& resources);
  42
  43   size_t size() const { return resource_ids_.size(); }
  44
  45  private:
  46   typedef std::map<GURL, int64> ResourceIDMap;
  47
  48   // The version objects owns its script cache and provides a rawptr to it.
  49   friend class ServiceWorkerVersion;
  50   ServiceWorkerScriptCacheMap(
  51       ServiceWorkerVersion* owner,
  52       base::WeakPtr<ServiceWorkerContextCore> context);
  53   ~ServiceWorkerScriptCacheMap();
  54
  55   ServiceWorkerVersion* owner_;
  56   base::WeakPtr<ServiceWorkerContextCore> context_;
  57   ResourceIDMap resource_ids_;
  58   bool has_error_;
  59
  60   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerScriptCacheMap);
  61 };
  62
  63 }  // namespace content
  64
  65 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_SCRIPT_CACHE_MAP_H_