google_apis/drive/gdata_wapi_requests.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 GOOGLE_APIS_DRIVE_GDATA_WAPI_REQUESTS_H_
   6 #define GOOGLE_APIS_DRIVE_GDATA_WAPI_REQUESTS_H_
   7
   8 #include <string>
   9
  10 #include "google_apis/drive/base_requests.h"
  11 #include "google_apis/drive/gdata_wapi_url_generator.h"
  12
  13 namespace google_apis {
  14
  15 class ResourceEntry;
  16
  17 // Callback type for GetResourceEntryRequest.
  18 typedef base::Callback<void(GDataErrorCode error,
  19                             scoped_ptr<ResourceEntry> entry)>
  20     GetResourceEntryCallback;
  21
  22 // This class performs the request for fetching a single resource entry.
  23 class GetResourceEntryRequest : public UrlFetchRequestBase {
  24  public:
  25   // |callback| must not be null.
  26   GetResourceEntryRequest(RequestSender* sender,
  27                           const GDataWapiUrlGenerator& url_generator,
  28                           const std::string& resource_id,
  29                           const GURL& embed_origin,
  30                           const GetResourceEntryCallback& callback);
  31   virtual ~GetResourceEntryRequest();
  32
  33  protected:
  34   // UrlFetchRequestBase overrides.
  35   virtual void ProcessURLFetchResults(const net::URLFetcher* source) OVERRIDE;
  36   virtual void RunCallbackOnPrematureFailure(GDataErrorCode error) OVERRIDE;
  37   virtual GURL GetURL() const OVERRIDE;
  38
  39  private:
  40   void OnDataParsed(GDataErrorCode error, scoped_ptr<ResourceEntry> entry);
  41
  42   const GDataWapiUrlGenerator url_generator_;
  43   // Resource id of the requested entry.
  44   const std::string resource_id_;
  45   // Embed origin for an url to the sharing dialog. Can be empty.
  46   GURL embed_origin_;
  47
  48   const GetResourceEntryCallback callback_;
  49
  50   // Note: This should remain the last member so it'll be destroyed and
  51   // invalidate its weak pointers before any other members are destroyed.
  52   base::WeakPtrFactory<GetResourceEntryRequest> weak_ptr_factory_;
  53
  54   DISALLOW_COPY_AND_ASSIGN(GetResourceEntryRequest);
  55 };
  56
  57 }  // namespace google_apis
  58
  59 #endif  // GOOGLE_APIS_DRIVE_GDATA_WAPI_REQUESTS_H_