src/third_party/WebKit/public/platform/WebServiceWorkerCacheStorage.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 WebServiceWorkerCacheStorage_h
   6 #define WebServiceWorkerCacheStorage_h
   7
   8 #include "WebCommon.h"
   9 #include "public/platform/WebCallbacks.h"
  10 #include "public/platform/WebServiceWorkerCacheError.h"
  11 #include "public/platform/WebString.h"
  12 #include "public/platform/WebVector.h"
  13
  14 namespace blink {
  15
  16 class WebServiceWorkerCache;
  17
  18 // An interface to the CacheStorage API, implemented by the embedder and passed in to Blink. Blink's implementation
  19 // of the ServiceWorker spec will call these methods to create/open caches, and expect callbacks from the embedder
  20 // after operations complete.
  21 class WebServiceWorkerCacheStorage {
  22 public:
  23     typedef WebCallbacks<void, WebServiceWorkerCacheError> CacheStorageCallbacks;
  24     typedef WebCallbacks<WebServiceWorkerCache, WebServiceWorkerCacheError> CacheStorageWithCacheCallbacks;
  25     typedef WebCallbacks<WebVector<WebString>, WebServiceWorkerCacheError> CacheStorageKeysCallbacks;
  26
  27     virtual ~WebServiceWorkerCacheStorage() { }
  28
  29     // Ownership of the CacheStorage*Callbacks methods passes to the WebServiceWorkerCacheStorage instance, which
  30     // will delete it after calling onSuccess or onFailure.
  31
  32     // dispatchOpen() can return a WebServiceWorkerCache object. These
  33     // objects are owned by Blink and should be destroyed when they are no
  34     // longer needed.
  35     virtual void dispatchHas(CacheStorageCallbacks*, const WebString& cacheName) = 0;
  36     virtual void dispatchOpen(CacheStorageWithCacheCallbacks*, const WebString& cacheName) = 0;
  37     virtual void dispatchDelete(CacheStorageCallbacks*, const WebString& cacheName) = 0;
  38     virtual void dispatchKeys(CacheStorageKeysCallbacks*) = 0;
  39 };
  40
  41 } // namespace blink
  42
  43 #endif // WebServiceWorkerCacheStorage_h