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_GET_METADATA_H_
  #define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OPERATIONS_GET_METADATA_H_
  
  #include "base/files/file.h"
  #include "base/memory/scoped_ptr.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 "chrome/common/extensions/api/file_system_provider_internal.h"
  
  namespace base {
  class FilePath;
  }  // namespace base
  
  namespace extensions {
  class EventRouter;
  }  // namespace extensions
  
  namespace chromeos {
  namespace file_system_provider {
  namespace operations {
  
  // Validates the metadata. If it's incorrect (eg. incorrect characters in the
  // name or empty for non-root), then returns false.
  bool ValidateIDLEntryMetadata(
      const extensions::api::file_system_provider::EntryMetadata& metadata,
      bool root_entry);
  
  // Checks whether the passed name is valid or not.
  bool ValidateName(const std::string& name, bool root_entry);
  
  // Bridge between fileapi get metadata operation and providing extension's get
  // metadata request. Created per request.
  class GetMetadata : public Operation {
   public:
    GetMetadata(extensions::EventRouter* event_router,
                const ProvidedFileSystemInfo& file_system_info,
                const base::FilePath& entry_path,
                ProvidedFileSystemInterface::MetadataFieldMask fields,
                const ProvidedFileSystemInterface::GetMetadataCallback& callback);
    ~GetMetadata() override;
  
    // Operation overrides.
    bool Execute(int request_id) override;
    void OnSuccess(int request_id,
                   scoped_ptr<RequestValue> result,
                   bool has_more) override;
    void OnError(int request_id,
                 scoped_ptr<RequestValue> result,
                 base::File::Error error) override;
  
   private:
    base::FilePath entry_path_;
    ProvidedFileSystemInterface::MetadataFieldMask fields_;
    const ProvidedFileSystemInterface::GetMetadataCallback callback_;
  
    DISALLOW_COPY_AND_ASSIGN(GetMetadata);
  };
  
  }  // namespace operations
  }  // namespace file_system_provider
  }  // namespace chromeos
  
  #endif  // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OPERATIONS_GET_METADATA_H_
  