content/browser/renderer_host/pepper/pepper_external_file_ref_backend.h

   1 // Copyright 2013 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 CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_EXTERNAL_FILE_REF_BACKEND_H_
   6 #define CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_EXTERNAL_FILE_REF_BACKEND_H_
   7
   8 #include <string>
   9
  10 #include "base/files/file.h"
  11 #include "base/files/file_path.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "base/task_runner.h"
  14 #include "content/browser/renderer_host/pepper/pepper_file_ref_host.h"
  15 #include "ppapi/c/pp_instance.h"
  16 #include "ppapi/c/pp_resource.h"
  17 #include "ppapi/c/pp_time.h"
  18 #include "ppapi/host/ppapi_host.h"
  19
  20 namespace content {
  21
  22 // Implementations of FileRef operations for external filesystems.
  23 class PepperExternalFileRefBackend : public PepperFileRefBackend {
  24  public:
  25   PepperExternalFileRefBackend(ppapi::host::PpapiHost* host,
  26                                int render_process_id,
  27                                const base::FilePath& path);
  28   ~PepperExternalFileRefBackend() override;
  29
  30   // PepperFileRefBackend overrides.
  31   int32_t MakeDirectory(ppapi::host::ReplyMessageContext context,
  32                         int32_t make_directory_flags) override;
  33   int32_t Touch(ppapi::host::ReplyMessageContext context,
  34                 PP_Time last_accessed_time,
  35                 PP_Time last_modified_time) override;
  36   int32_t Delete(ppapi::host::ReplyMessageContext context) override;
  37   int32_t Rename(ppapi::host::ReplyMessageContext context,
  38                  PepperFileRefHost* new_file_ref) override;
  39   int32_t Query(ppapi::host::ReplyMessageContext context) override;
  40   int32_t ReadDirectoryEntries(
  41       ppapi::host::ReplyMessageContext context) override;
  42   int32_t GetAbsolutePath(ppapi::host::ReplyMessageContext context) override;
  43   storage::FileSystemURL GetFileSystemURL() const override;
  44   base::FilePath GetExternalFilePath() const override;
  45
  46   int32_t CanRead() const override;
  47   int32_t CanWrite() const override;
  48   int32_t CanCreate() const override;
  49   int32_t CanReadWrite() const override;
  50
  51  private:
  52   // Generic reply callback.
  53   void DidFinish(ppapi::host::ReplyMessageContext reply_context,
  54                  const IPC::Message& msg,
  55                  base::File::Error error);
  56
  57   // Operation specific callbacks.
  58   void GetMetadataComplete(ppapi::host::ReplyMessageContext reply_context,
  59                            base::File::Error error,
  60                            const base::File::Info& file_info);
  61
  62   ppapi::host::PpapiHost* host_;
  63   base::FilePath path_;
  64   int render_process_id_;
  65
  66   scoped_refptr<base::TaskRunner> task_runner_;
  67
  68   base::WeakPtrFactory<PepperExternalFileRefBackend> weak_factory_;
  69
  70   DISALLOW_COPY_AND_ASSIGN(PepperExternalFileRefBackend);
  71 };
  72
  73 }  // namespace content
  74
  75 #endif  // CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_EXTERNAL_FILE_REF_BACKEND_H_