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_path.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "base/task_runner.h"
  13 #include "content/browser/renderer_host/pepper/pepper_file_ref_host.h"
  14 #include "ppapi/c/pp_instance.h"
  15 #include "ppapi/c/pp_resource.h"
  16 #include "ppapi/c/pp_time.h"
  17 #include "ppapi/host/ppapi_host.h"
  18
  19 namespace content {
  20
  21 // Implementations of FileRef operations for external filesystems.
  22 class PepperExternalFileRefBackend : public PepperFileRefBackend {
  23  public:
  24   PepperExternalFileRefBackend(ppapi::host::PpapiHost* host,
  25                                int render_process_id,
  26                                const base::FilePath& path);
  27   virtual ~PepperExternalFileRefBackend();
  28
  29   // PepperFileRefBackend overrides.
  30   virtual int32_t MakeDirectory(ppapi::host::ReplyMessageContext context,
  31                                 int32_t make_directory_flags) OVERRIDE;
  32   virtual int32_t Touch(ppapi::host::ReplyMessageContext context,
  33                         PP_Time last_accessed_time,
  34                         PP_Time last_modified_time) OVERRIDE;
  35   virtual int32_t Delete(ppapi::host::ReplyMessageContext context) OVERRIDE;
  36   virtual int32_t Rename(ppapi::host::ReplyMessageContext context,
  37                          PepperFileRefHost* new_file_ref) OVERRIDE;
  38   virtual int32_t Query(ppapi::host::ReplyMessageContext context) OVERRIDE;
  39   virtual int32_t ReadDirectoryEntries(
  40       ppapi::host::ReplyMessageContext context) OVERRIDE;
  41   virtual int32_t GetAbsolutePath(ppapi::host::ReplyMessageContext context)
  42       OVERRIDE;
  43   virtual fileapi::FileSystemURL GetFileSystemURL() const OVERRIDE;
  44   virtual base::FilePath GetExternalFilePath() const OVERRIDE;
  45
  46   virtual int32_t CanRead() const OVERRIDE;
  47   virtual int32_t CanWrite() const OVERRIDE;
  48   virtual int32_t CanCreate() const OVERRIDE;
  49   virtual 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::PlatformFileError error);
  56
  57   // Operation specific callbacks.
  58   void GetMetadataComplete(
  59     ppapi::host::ReplyMessageContext reply_context,
  60     base::PlatformFileError error,
  61     const base::PlatformFileInfo& file_info);
  62
  63   ppapi::host::PpapiHost* host_;
  64   base::FilePath path_;
  65   int render_process_id_;
  66
  67   scoped_refptr<base::TaskRunner> task_runner_;
  68
  69   base::WeakPtrFactory<PepperExternalFileRefBackend> weak_factory_;
  70
  71   DISALLOW_COPY_AND_ASSIGN(PepperExternalFileRefBackend);
  72 };
  73
  74 }  // namespace content
  75
  76 #endif  // CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_EXTERNAL_FILE_REF_BACKEND_H_