file_system_resource.cc revision c2e0dbddbe15c98d52c4786dac06cb8952a8ae6d 
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
13using ppapi::thunk::PPB_FileSystem_API;
14
15namespace ppapi {
16namespace proxy {
17
18FileSystemResource::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
28FileSystemResource::~FileSystemResource() {
29}
30
31PPB_FileSystem_API* FileSystemResource::AsPPB_FileSystem_API() {
32  return this;
33}
34
35int32_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
49PP_FileSystemType FileSystemResource::GetType() {
50  return type_;
51}
52
53void FileSystemResource::OpenComplete(
54    scoped_refptr<TrackedCallback> callback,
55    const ResourceMessageReplyParams& params) {
56  callback->Run(params.result());
57}
58
59}  // namespace proxy
60}  // namespace ppapi
61