base/value_conversions.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 "base/value_conversions.h"
   6
   7 #include "base/file_path.h"
   8 #include "base/string_number_conversions.h"
   9 #include "base/time.h"
  10 #include "base/values.h"
  11
  12 namespace base {
  13
  14 // |Value| internally stores strings in UTF-8, so we have to convert from the
  15 // system native code to UTF-8 and back.
  16 StringValue* CreateFilePathValue(const FilePath& in_value) {
  17   return new StringValue(in_value.AsUTF8Unsafe());
  18 }
  19
  20 bool GetValueAsFilePath(const Value& value, FilePath* file_path) {
  21   std::string str;
  22   if (!value.GetAsString(&str))
  23     return false;
  24   if (file_path)
  25     *file_path = FilePath::FromUTF8Unsafe(str);
  26   return true;
  27 }
  28
  29 // |Value| does not support 64-bit integers, and doubles do not have enough
  30 // precision, so we store the 64-bit time value as a string instead.
  31 StringValue* CreateTimeDeltaValue(const TimeDelta& time) {
  32   std::string string_value = base::Int64ToString(time.ToInternalValue());
  33   return new StringValue(string_value);
  34 }
  35
  36 bool GetValueAsTimeDelta(const Value& value, TimeDelta* time) {
  37   std::string str;
  38   int64 int_value;
  39   if (!value.GetAsString(&str) || !base::StringToInt64(str, &int_value))
  40     return false;
  41   if (time)
  42     *time = TimeDelta::FromInternalValue(int_value);
  43   return true;
  44 }
  45
  46 }  // namespace base