ppapi/thunk/ppb_directory_reader_thunk.cc

   1 // Copyright (c) 2012 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/c/dev/ppb_directory_reader_dev.h"
   6 #include "ppapi/c/pp_completion_callback.h"
   7 #include "ppapi/c/pp_errors.h"
   8 #include "ppapi/shared_impl/tracked_callback.h"
   9 #include "ppapi/thunk/enter.h"
  10 #include "ppapi/thunk/thunk.h"
  11 #include "ppapi/thunk/ppb_directory_reader_api.h"
  12 #include "ppapi/thunk/resource_creation_api.h"
  13
  14 namespace ppapi {
  15 namespace thunk {
  16
  17 namespace {
  18
  19 PP_Resource Create(PP_Resource directory_ref) {
  20   Resource* object =
  21       PpapiGlobals::Get()->GetResourceTracker()->GetResource(directory_ref);
  22   if (!object)
  23     return 0;
  24   EnterResourceCreation enter(object->pp_instance());
  25   if (enter.failed())
  26     return 0;
  27   return enter.functions()->CreateDirectoryReader(directory_ref);
  28 }
  29
  30 PP_Bool IsDirectoryReader(PP_Resource resource) {
  31   EnterResource<PPB_DirectoryReader_API> enter(resource, false);
  32   return PP_FromBool(enter.succeeded());
  33 }
  34
  35 int32_t GetNextEntry(PP_Resource directory_reader,
  36                      PP_DirectoryEntry_Dev* entry,
  37                      PP_CompletionCallback callback) {
  38   EnterResource<PPB_DirectoryReader_API> enter(
  39       directory_reader, callback, true);
  40   if (enter.failed())
  41     return enter.retval();
  42   return enter.SetResult(enter.object()->GetNextEntry(entry, enter.callback()));
  43 }
  44
  45 const PPB_DirectoryReader_Dev g_ppb_directory_reader_thunk = {
  46   &Create,
  47   &IsDirectoryReader,
  48   &GetNextEntry
  49 };
  50
  51 }  // namespace
  52
  53 const PPB_DirectoryReader_Dev_0_5* GetPPB_DirectoryReader_Dev_0_5_Thunk() {
  54   return &g_ppb_directory_reader_thunk;
  55 }
  56
  57 }  // namespace thunk
  58 }  // namespace ppapi