ppapi/proxy/file_system_resource.cc

   1 // Copyright (c) 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 #include "ppapi/proxy/file_system_resource.h"
   6
   7 #include "base/bind.h"
   8 #include "ipc/ipc_message.h"
   9 #include "ppapi/c/pp_errors.h"
  10 #include "ppapi/proxy/ppapi_messages.h"
  11 #include "ppapi/shared_impl/tracked_callback.h"
  12
  13 using ppapi::thunk::PPB_FileSystem_API;
  14
  15 namespace ppapi {
  16 namespace proxy {
  17
  18 FileSystemResource::FileSystemResource(Connection connection,
  19                                        PP_Instance instance,
  20                                        PP_FileSystemType type)
  21     : PluginResource(connection, instance),
  22       type_(type),
  23       called_open_(false) {
  24   DCHECK(type_ != PP_FILESYSTEMTYPE_INVALID);
  25   SendCreate(RENDERER, PpapiHostMsg_FileSystem_Create(type_));
  26 }
  27
  28 FileSystemResource::~FileSystemResource() {
  29 }
  30
  31 PPB_FileSystem_API* FileSystemResource::AsPPB_FileSystem_API() {
  32   return this;
  33 }
  34
  35 int32_t FileSystemResource::Open(int64_t expected_size,
  36                                  scoped_refptr<TrackedCallback> callback) {
  37   if (called_open_)
  38     return PP_ERROR_FAILED;
  39   called_open_ = true;
  40
  41   Call<PpapiPluginMsg_FileSystem_OpenReply>(RENDERER,
  42       PpapiHostMsg_FileSystem_Open(expected_size),
  43       base::Bind(&FileSystemResource::OpenComplete,
  44                  this,
  45                  callback));
  46   return PP_OK_COMPLETIONPENDING;
  47 }
  48
  49 PP_FileSystemType FileSystemResource::GetType() {
  50   return type_;
  51 }
  52
  53 void FileSystemResource::InitIsolatedFileSystem(const char* fsid) {
  54   Post(RENDERER,
  55        PpapiHostMsg_FileSystem_InitIsolatedFileSystem(std::string(fsid)));
  56 }
  57
  58 void FileSystemResource::OpenComplete(
  59     scoped_refptr<TrackedCallback> callback,
  60     const ResourceMessageReplyParams& params) {
  61   callback->Run(params.result());
  62 }
  63
  64 }  // namespace proxy
  65 }  // namespace ppapi