text: // Copyright 2014 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #ifndef CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OPERATIONS_WRITE_FILE_H_
  #define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OPERATIONS_WRITE_FILE_H_
  
  #include <stdint.h>
  
  #include <memory>
  
  #include "base/files/file.h"
  #include "base/macros.h"
  #include "base/memory/ref_counted.h"
  #include "chrome/browser/chromeos/file_system_provider/operations/operation.h"
  #include "chrome/browser/chromeos/file_system_provider/provided_file_system_info.h"
  #include "chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h"
  #include "chrome/browser/chromeos/file_system_provider/request_value.h"
  #include "net/base/io_buffer.h"
  #include "storage/browser/file_system/async_file_util.h"
  
  namespace extensions {
  class EventRouter;
  }  // namespace extensions
  
  namespace chromeos {
  namespace file_system_provider {
  namespace operations {
  
  // Bridge between fileapi write file and providing extension's write fil
  // request.
  // Created per request.
  class WriteFile : public Operation {
   public:
    WriteFile(extensions::EventRouter* event_router,
              const ProvidedFileSystemInfo& file_system_info,
              int file_handle,
              scoped_refptr<net::IOBuffer> buffer,
              int64_t offset,
              int length,
              storage::AsyncFileUtil::StatusCallback callback);
    ~WriteFile() override;
  
    // Operation overrides.
    bool Execute(int request_id) override;
    void OnSuccess(int request_id,
                   std::unique_ptr<RequestValue> result,
                   bool has_more) override;
    void OnError(int request_id,
                 std::unique_ptr<RequestValue> result,
                 base::File::Error error) override;
  
   private:
    int file_handle_;
    scoped_refptr<net::IOBuffer> buffer_;
    int64_t offset_;
    int length_;
    storage::AsyncFileUtil::StatusCallback callback_;
  
    DISALLOW_COPY_AND_ASSIGN(WriteFile);
  };
  
  }  // namespace operations
  }  // namespace file_system_provider
  }  // namespace chromeos
  
  #endif  // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OPERATIONS_WRITE_FILE_H_
  