src/components/translate/content/renderer/data_file_renderer_cld_data_provider.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 COMPONENTS_TRANSLATE_CONTENT_RENDERER_DATA_FILE_RENDERER_CLD_DATA_PROVIDER_H_
   6 #define COMPONENTS_TRANSLATE_CONTENT_RENDERER_DATA_FILE_RENDERER_CLD_DATA_PROVIDER_H_
   7
   8 #include "base/files/file.h"
   9 #include "base/macros.h"
  10 #include "components/translate/content/renderer/renderer_cld_data_provider.h"
  11 #include "ipc/ipc_platform_file.h"
  12
  13 namespace translate {
  14
  15 class DataFileRendererCldDataProvider : public RendererCldDataProvider {
  16  public:
  17   explicit DataFileRendererCldDataProvider(content::RenderViewObserver*);
  18   virtual ~DataFileRendererCldDataProvider();
  19   // RendererCldDataProvider implementations:
  20   virtual bool OnMessageReceived(const IPC::Message&) OVERRIDE;
  21   virtual void SendCldDataRequest() OVERRIDE;
  22   virtual void SetCldAvailableCallback(base::Callback<void(void)>) OVERRIDE;
  23   virtual bool IsCldDataAvailable() OVERRIDE;
  24
  25  private:
  26   void OnCldDataAvailable(const IPC::PlatformFileForTransit ipc_file_handle,
  27                           const uint64 data_offset,
  28                           const uint64 data_length);
  29   void LoadCldData(base::File file,
  30                    const uint64 data_offset,
  31                    const uint64 data_length);
  32   content::RenderViewObserver* render_view_observer_;
  33   base::Callback<void(void)> cld_available_callback_;
  34
  35   DISALLOW_COPY_AND_ASSIGN(DataFileRendererCldDataProvider);
  36 };
  37
  38 }  // namespace translate
  39
  40 #endif  // COMPONENTS_TRANSLATE_CONTENT_RENDERER_DATA_FILE_RENDERER_CLD_DATA_PROVIDER_H_