Transfer date/time value to chooser as double

content/renderer/date_time_formatter.h

-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CONTENT_RENDERER_DATE_TIME_FORMATTER_H_
-#define CONTENT_RENDERER_DATE_TIME_FORMATTER_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "content/common/content_export.h"
-#include "third_party/icu/source/common/unicode/unistr.h"
-#include "third_party/icu/source/i18n/unicode/gregocal.h"
-#include "ui/base/ime/text_input_type.h"
-
-namespace blink {
-struct WebDateTimeChooserParams;
-}  // namespace blink
-
-namespace content {
-
-// Converts between a text string representing a date/time and
-// a set of year/month/day/hour/minute/second/milli and vice versa.
-// It is timezone agnostic.
-class CONTENT_EXPORT DateTimeFormatter {
- public:
-  explicit DateTimeFormatter(const blink::WebDateTimeChooserParams& source);
-  DateTimeFormatter(ui::TextInputType type,
-                    int year,
-                    int month,
-                    int day,
-                    int hour,
-                    int minute,
-                    int second,
-                    int milli,
-                    int week_year,
-                    int week);
-  ~DateTimeFormatter();
-
-  int GetYear() const;
-  int GetMonth() const;
-  int GetDay() const;
-  int GetHour() const;
-  int GetMinute() const;
-  int GetSecond() const;
-  int GetMilli() const;
-  int GetWeekYear() const;
-  int GetWeek() const;
-  ui::TextInputType GetType() const;
-  const std::string& GetFormattedValue() const;
-
- private:
-  void CreatePatternMap();
-  bool ParseValues();
-  const std::string FormatString() const;
-  int ExtractValue(
-      const icu::Calendar* calendar, UCalendarDateFields value) const;
-  void ExtractType(const blink::WebDateTimeChooserParams& source);
-  void ClearAll();
-
-  ui::TextInputType type_;
-  icu::UnicodeString patterns_[ui::TEXT_INPUT_TYPE_MAX + 1];
-  icu::UnicodeString time_pattern_;
-  int year_;
-  int month_;
-  int day_;
-  int hour_;
-  int minute_;
-  int second_;
-  int milli_;
-  int week_year_;
-  int week_;
-  const icu::UnicodeString* pattern_;
-  std::string formatted_string_;
-
-  DISALLOW_COPY_AND_ASSIGN(DateTimeFormatter);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_DATE_TIME_FORMATTER_H_