ppapi/proxy/ext_crx_file_system_private_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/ext_crx_file_system_private_resource.h"
   6
   7 #include "base/bind.h"
   8 #include "ppapi/c/pp_errors.h"
   9 #include "ppapi/c/pp_file_info.h"
  10 #include "ppapi/proxy/file_system_resource.h"
  11 #include "ppapi/proxy/ppapi_messages.h"
  12 #include "ppapi/proxy/resource_message_params.h"
  13 #include "ppapi/shared_impl/host_resource.h"
  14 #include "ppapi/shared_impl/tracked_callback.h"
  15 #include "ppapi/thunk/enter.h"
  16
  17 namespace ppapi {
  18 namespace proxy {
  19
  20 namespace {
  21 void RunTrackedCallback(scoped_refptr<TrackedCallback> callback,
  22                         int32_t rc) {
  23   callback->Run(rc);
  24 }
  25 }  // namespace
  26
  27 ExtCrxFileSystemPrivateResource::ExtCrxFileSystemPrivateResource(
  28     Connection connection, PP_Instance instance)
  29     : PluginResource(connection, instance), called_open_(false) {
  30   SendCreate(BROWSER, PpapiHostMsg_Ext_CrxFileSystem_Create());
  31 }
  32
  33 ExtCrxFileSystemPrivateResource::~ExtCrxFileSystemPrivateResource() {
  34 }
  35
  36 thunk::PPB_Ext_CrxFileSystem_Private_API*
  37 ExtCrxFileSystemPrivateResource::AsPPB_Ext_CrxFileSystem_Private_API() {
  38   return this;
  39 }
  40
  41 int32_t ExtCrxFileSystemPrivateResource::Open(
  42     PP_Instance /* unused */,
  43     PP_Resource* file_system_resource,
  44     scoped_refptr<TrackedCallback> callback) {
  45   if (called_open_)
  46     return PP_ERROR_FAILED;
  47   called_open_ = true;
  48
  49   if (!file_system_resource)
  50     return PP_ERROR_BADARGUMENT;
  51
  52   Call<PpapiPluginMsg_Ext_CrxFileSystem_BrowserOpenReply>(BROWSER,
  53       PpapiHostMsg_Ext_CrxFileSystem_BrowserOpen(),
  54       base::Bind(&ExtCrxFileSystemPrivateResource::OnBrowserOpenComplete, this,
  55                  file_system_resource,
  56                  callback));
  57   return PP_OK_COMPLETIONPENDING;
  58 }
  59
  60 void ExtCrxFileSystemPrivateResource::OnBrowserOpenComplete(
  61     PP_Resource* file_system_resource,
  62     scoped_refptr<TrackedCallback> callback,
  63     const ResourceMessageReplyParams& params,
  64     const std::string& fsid) {
  65   if (!TrackedCallback::IsPending(callback))
  66     return;
  67
  68   if (params.result() != PP_OK) {
  69     callback->Run(params.result());
  70     return;
  71   }
  72
  73   FileSystemResource* fs = new FileSystemResource(
  74       connection(), pp_instance(), PP_FILESYSTEMTYPE_ISOLATED);
  75   *file_system_resource = fs->GetReference();
  76   if (*file_system_resource == 0)
  77     callback->Run(PP_ERROR_FAILED);
  78   fs->InitIsolatedFileSystem(fsid, base::Bind(&RunTrackedCallback, callback));
  79 }
  80
  81 }  // namespace proxy
  82 }  // namespace ppapi