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      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 CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_REQUEST_VALUE_H_
      6 #define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_REQUEST_VALUE_H_
      7 
      8 #include <string>
      9 
     10 #include "base/memory/scoped_ptr.h"
     11 #include "chrome/common/extensions/api/file_system_provider_internal.h"
     12 
     13 namespace chromeos {
     14 namespace file_system_provider {
     15 
     16 // Holds a parsed value returned by a providing extension. Each accessor can
     17 // return NULL in case the requested value type is not available. It is used
     18 // to pass values of success callbacks.
     19 class RequestValue {
     20  public:
     21   // Creates an empty value. Use static methods to create a value holding a
     22   // proper content.
     23   RequestValue();
     24 
     25   virtual ~RequestValue();
     26 
     27   static scoped_ptr<RequestValue> CreateForUnmountSuccess(
     28       scoped_ptr<extensions::api::file_system_provider_internal::
     29                      UnmountRequestedSuccess::Params> params);
     30 
     31   static scoped_ptr<RequestValue> CreateForGetMetadataSuccess(
     32       scoped_ptr<extensions::api::file_system_provider_internal::
     33                      GetMetadataRequestedSuccess::Params> params);
     34 
     35   static scoped_ptr<RequestValue> CreateForReadDirectorySuccess(
     36       scoped_ptr<extensions::api::file_system_provider_internal::
     37                      ReadDirectoryRequestedSuccess::Params> params);
     38 
     39   static scoped_ptr<RequestValue> CreateForReadFileSuccess(
     40       scoped_ptr<extensions::api::file_system_provider_internal::
     41                      ReadFileRequestedSuccess::Params> params);
     42 
     43   static scoped_ptr<RequestValue> CreateForTesting(const std::string& params);
     44 
     45   const extensions::api::file_system_provider_internal::
     46       UnmountRequestedSuccess::Params*
     47       unmount_success_params() const {
     48     return unmount_success_params_.get();
     49   }
     50 
     51   const extensions::api::file_system_provider_internal::
     52       GetMetadataRequestedSuccess::Params*
     53       get_metadata_success_params() const {
     54     return get_metadata_success_params_.get();
     55   }
     56 
     57   const extensions::api::file_system_provider_internal::
     58       ReadDirectoryRequestedSuccess::Params*
     59       read_directory_success_params() const {
     60     return read_directory_success_params_.get();
     61   }
     62 
     63   const extensions::api::file_system_provider_internal::
     64       ReadFileRequestedSuccess::Params*
     65       read_file_success_params() const {
     66     return read_file_success_params_.get();
     67   }
     68 
     69   const std::string* testing_params() const { return testing_params_.get(); }
     70 
     71  private:
     72   scoped_ptr<extensions::api::file_system_provider_internal::
     73                  UnmountRequestedSuccess::Params> unmount_success_params_;
     74   scoped_ptr<extensions::api::file_system_provider_internal::
     75                  GetMetadataRequestedSuccess::Params>
     76       get_metadata_success_params_;
     77   scoped_ptr<extensions::api::file_system_provider_internal::
     78                  ReadDirectoryRequestedSuccess::Params>
     79       read_directory_success_params_;
     80   scoped_ptr<extensions::api::file_system_provider_internal::
     81                  ReadFileRequestedSuccess::Params> read_file_success_params_;
     82   scoped_ptr<std::string> testing_params_;
     83 
     84   DISALLOW_COPY_AND_ASSIGN(RequestValue);
     85 };
     86 
     87 }  // namespace file_system_provider
     88 }  // namespace chromeos
     89 
     90 #endif  // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_REQUEST_VALUE_H_
     91