1/*
2 * Copyright (C) 2012 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
20 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
23 * DAMAGE.
24 */
25
26#ifndef PlatformLocale_h
27#define PlatformLocale_h
28
29#include "DateComponents.h"
30#include <wtf/Language.h>
31#include <wtf/text/WTFString.h>
32
33namespace WebCore {
34
35#if PLATFORM(IOS_FAMILY)
36class FontCascade;
37#endif
38
39class Locale {
40 WTF_MAKE_NONCOPYABLE(Locale); WTF_MAKE_FAST_ALLOCATED;
41
42public:
43 static std::unique_ptr<Locale> create(const AtomicString& localeIdentifier);
44 static std::unique_ptr<Locale> createDefault();
45
46 // Converts the specified number string to another number string localized
47 // for this Locale locale. The input string must conform to HTML
48 // floating-point numbers, and is not empty.
49 String convertToLocalizedNumber(const String&);
50
51 // Converts the specified localized number string to a number string in the
52 // HTML floating-point number format. The input string is provided by a end
53 // user, and might not be a number string. It's ok that the function returns
54 // a string which is not conforms to the HTML floating-point number format,
55 // callers of this function are responsible to check the format of the
56 // resultant string.
57 String convertFromLocalizedNumber(const String&);
58
59#if ENABLE(DATE_AND_TIME_INPUT_TYPES)
60 // Returns date format in Unicode TR35 LDML[1] containing day of month,
61 // month, and year, e.g. "dd/mm/yyyy"
62 // [1] LDML http://unicode.org/reports/tr35/#Date_Format_Patterns
63 virtual String dateFormat() = 0;
64
65 // Returns a year-month format in Unicode TR35 LDML.
66 virtual String monthFormat() = 0;
67
68 // Returns a year-month format using short month lanel in Unicode TR35 LDML.
69 virtual String shortMonthFormat() = 0;
70
71 // Returns time format in Unicode TR35 LDML[1] containing hour, minute, and
72 // second with optional period(AM/PM), e.g. "h:mm:ss a"
73 // [1] LDML http://unicode.org/reports/tr35/#Date_Format_Patterns
74 virtual String timeFormat() = 0;
75
76 // Returns time format in Unicode TR35 LDML containing hour, and minute
77 // with optional period(AM/PM), e.g. "h:mm a"
78 // Note: Some platforms return same value as timeFormat().
79 virtual String shortTimeFormat() = 0;
80
81 // Returns a date-time format in Unicode TR35 LDML. It should have a seconds
82 // field.
83 virtual String dateTimeFormatWithSeconds() = 0;
84
85 // Returns a date-time format in Unicode TR35 LDML. It should have no seconds
86 // field.
87 virtual String dateTimeFormatWithoutSeconds() = 0;
88
89 // Returns a vector of string of which size is 12. The first item is a
90 // localized string of Jan and the last item is a localized string of
91 // Dec. These strings should be short.
92 virtual const Vector<String>& shortMonthLabels() = 0;
93
94 // Returns a vector of string of which size is 12. The first item is a
95 // stand-alone localized string of January and the last item is a
96 // stand-alone localized string of December. These strings should not be
97 // abbreviations.
98 virtual const Vector<String>& standAloneMonthLabels() = 0;
99
100 // Stand-alone month version of shortMonthLabels.
101 virtual const Vector<String>& shortStandAloneMonthLabels() = 0;
102
103 // Returns localized period field(AM/PM) strings.
104 virtual const Vector<String>& timeAMPMLabels() = 0;
105
106 // Returns a vector of string of which size is 12. The first item is a
107 // localized string of January, and the last item is a localized string of
108 // December. These strings should not be abbreviations.
109 virtual const Vector<String>& monthLabels() = 0;
110#endif
111
112#if ENABLE(DATE_AND_TIME_INPUT_TYPES)
113 enum FormatType { FormatTypeUnspecified, FormatTypeShort, FormatTypeMedium };
114
115 // Serializes the specified date into a formatted date string to
116 // display to the user. If an implementation doesn't support
117 // localized dates the function should return an empty string.
118 // FormatType can be used to specify if you want the short format.
119#if !PLATFORM(IOS_FAMILY)
120 String formatDateTime(const DateComponents&, FormatType = FormatTypeUnspecified);
121#else
122 virtual String formatDateTime(const DateComponents&, FormatType = FormatTypeUnspecified) = 0;
123#endif // !PLATFORM(IOS_FAMILY)
124#endif
125
126 virtual ~Locale();
127
128protected:
129 enum {
130 // 0-9 for digits.
131 DecimalSeparatorIndex = 10,
132 GroupSeparatorIndex = 11,
133 DecimalSymbolsSize
134 };
135
136 Locale() : m_hasLocaleData(false) { }
137 virtual void initializeLocaleData() = 0;
138 void setLocaleData(const Vector<String, DecimalSymbolsSize>&, const String& positivePrefix, const String& positiveSuffix, const String& negativePrefix, const String& negativeSuffix);
139
140private:
141 bool detectSignAndGetDigitRange(const String& input, bool& isNegative, unsigned& startIndex, unsigned& endIndex);
142 unsigned matchedDecimalSymbolIndex(const String& input, unsigned& position);
143
144 String m_decimalSymbols[DecimalSymbolsSize];
145 String m_positivePrefix;
146 String m_positiveSuffix;
147 String m_negativePrefix;
148 String m_negativeSuffix;
149 bool m_hasLocaleData;
150};
151
152inline std::unique_ptr<Locale> Locale::createDefault()
153{
154 return Locale::create(defaultLanguage());
155}
156
157}
158#endif
159