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 <string>
   8
   9 #include "base/basictypes.h"
  10 #include "base/files/file_path.h"
  11 #include "base/strings/string_number_conversions.h"
  12 #include "base/time/time.h"
  13 #include "base/values.h"
  14
  15 namespace base {
  16
  17 // |Value| internally stores strings in UTF-8, so we have to convert from the
  18 // system native code to UTF-8 and back.
  19 StringValue* CreateFilePathValue(const FilePath& in_value) {
  20   return new StringValue(in_value.AsUTF8Unsafe());
  21 }
  22
  23 bool GetValueAsFilePath(const Value& value, FilePath* file_path) {
  24   std::string str;
  25   if (!value.GetAsString(&str))
  26     return false;
  27   if (file_path)
  28     *file_path = FilePath::FromUTF8Unsafe(str);
  29   return true;
  30 }
  31
  32 // |Value| does not support 64-bit integers, and doubles do not have enough
  33 // precision, so we store the 64-bit time value as a string instead.
  34 StringValue* CreateTimeDeltaValue(const TimeDelta& time) {
  35   std::string string_value = base::Int64ToString(time.ToInternalValue());
  36   return new StringValue(string_value);
  37 }
  38
  39 bool GetValueAsTimeDelta(const Value& value, TimeDelta* time) {
  40   std::string str;
  41   int64 int_value;
  42   if (!value.GetAsString(&str) || !base::StringToInt64(str, &int_value))
  43     return false;
  44   if (time)
  45     *time = TimeDelta::FromInternalValue(int_value);
  46   return true;
  47 }
  48
  49 }  // namespace base