chrome/browser/chromeos/file_system_provider/operations/open_file.cc

   1 // Copyright 2014 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 "chrome/browser/chromeos/file_system_provider/operations/open_file.h"
   6
   7 #include <string>
   8
   9 #include "chrome/common/extensions/api/file_system_provider.h"
  10 #include "chrome/common/extensions/api/file_system_provider_internal.h"
  11
  12 namespace chromeos {
  13 namespace file_system_provider {
  14 namespace operations {
  15
  16 OpenFile::OpenFile(
  17     extensions::EventRouter* event_router,
  18     const ProvidedFileSystemInfo& file_system_info,
  19     const base::FilePath& file_path,
  20     OpenFileMode mode,
  21     const ProvidedFileSystemInterface::OpenFileCallback& callback)
  22     : Operation(event_router, file_system_info),
  23       file_path_(file_path),
  24       mode_(mode),
  25       callback_(callback) {
  26 }
  27
  28 OpenFile::~OpenFile() {
  29 }
  30
  31 bool OpenFile::Execute(int request_id) {
  32   using extensions::api::file_system_provider::OpenFileRequestedOptions;
  33
  34   if (!file_system_info_.writable() && mode_ == OPEN_FILE_MODE_WRITE) {
  35     return false;
  36   }
  37
  38   OpenFileRequestedOptions options;
  39   options.file_system_id = file_system_info_.file_system_id();
  40   options.request_id = request_id;
  41   options.file_path = file_path_.AsUTF8Unsafe();
  42
  43   switch (mode_) {
  44     case OPEN_FILE_MODE_READ:
  45       options.mode = extensions::api::file_system_provider::OPEN_FILE_MODE_READ;
  46       break;
  47     case OPEN_FILE_MODE_WRITE:
  48       options.mode =
  49           extensions::api::file_system_provider::OPEN_FILE_MODE_WRITE;
  50       break;
  51   }
  52
  53   return SendEvent(
  54       request_id,
  55       extensions::events::FILE_SYSTEM_PROVIDER_ON_OPEN_FILE_REQUESTED,
  56       extensions::api::file_system_provider::OnOpenFileRequested::kEventName,
  57       extensions::api::file_system_provider::OnOpenFileRequested::Create(
  58           options));
  59 }
  60
  61 void OpenFile::OnSuccess(int request_id,
  62                          scoped_ptr<RequestValue> result,
  63                          bool has_more) {
  64   // File handle is the same as request id of the OpenFile operation.
  65   callback_.Run(request_id, base::File::FILE_OK);
  66 }
  67
  68 void OpenFile::OnError(int /* request_id */,
  69                        scoped_ptr<RequestValue> /* result */,
  70                        base::File::Error error) {
  71   callback_.Run(0 /* file_handle */, error);
  72 }
  73
  74 }  // namespace operations
  75 }  // namespace file_system_provider
  76 }  // namespace chromeos