forked from chromium/chromium
-
Notifications
You must be signed in to change notification settings - Fork 0
/
time_formatting.cc
296 lines (255 loc) · 10.8 KB
/
time_formatting.cc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
// Copyright (c) 2011 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.
#include "base/i18n/time_formatting.h"
#include <stddef.h>
#include <memory>
#include "base/i18n/unicodestring.h"
#include "base/logging.h"
#include "base/strings/utf_string_conversions.h"
#include "base/time/time.h"
#include "third_party/icu/source/common/unicode/utypes.h"
#include "third_party/icu/source/i18n/unicode/datefmt.h"
#include "third_party/icu/source/i18n/unicode/dtitvfmt.h"
#include "third_party/icu/source/i18n/unicode/dtptngen.h"
#include "third_party/icu/source/i18n/unicode/fmtable.h"
#include "third_party/icu/source/i18n/unicode/measfmt.h"
#include "third_party/icu/source/i18n/unicode/smpdtfmt.h"
namespace base {
namespace {
string16 TimeFormat(const icu::DateFormat* formatter,
const Time& time) {
DCHECK(formatter);
icu::UnicodeString date_string;
formatter->format(static_cast<UDate>(time.ToDoubleT() * 1000), date_string);
return i18n::UnicodeStringToString16(date_string);
}
string16 TimeFormatWithoutAmPm(const icu::DateFormat* formatter,
const Time& time) {
DCHECK(formatter);
icu::UnicodeString time_string;
icu::FieldPosition ampm_field(icu::DateFormat::kAmPmField);
formatter->format(
static_cast<UDate>(time.ToDoubleT() * 1000), time_string, ampm_field);
int ampm_length = ampm_field.getEndIndex() - ampm_field.getBeginIndex();
if (ampm_length) {
int begin = ampm_field.getBeginIndex();
// Doesn't include any spacing before the field.
if (begin)
begin--;
time_string.removeBetween(begin, ampm_field.getEndIndex());
}
return i18n::UnicodeStringToString16(time_string);
}
icu::SimpleDateFormat CreateSimpleDateFormatter(const char* pattern) {
// Generate a locale-dependent format pattern. The generator will take
// care of locale-dependent formatting issues like which separator to
// use (some locales use '.' instead of ':'), and where to put the am/pm
// marker.
UErrorCode status = U_ZERO_ERROR;
std::unique_ptr<icu::DateTimePatternGenerator> generator(
icu::DateTimePatternGenerator::createInstance(status));
DCHECK(U_SUCCESS(status));
icu::UnicodeString generated_pattern =
generator->getBestPattern(icu::UnicodeString(pattern), status);
DCHECK(U_SUCCESS(status));
// Then, format the time using the generated pattern.
icu::SimpleDateFormat formatter(generated_pattern, status);
DCHECK(U_SUCCESS(status));
return formatter;
}
UMeasureFormatWidth DurationWidthToMeasureWidth(DurationFormatWidth width) {
switch (width) {
case DURATION_WIDTH_WIDE: return UMEASFMT_WIDTH_WIDE;
case DURATION_WIDTH_SHORT: return UMEASFMT_WIDTH_SHORT;
case DURATION_WIDTH_NARROW: return UMEASFMT_WIDTH_NARROW;
case DURATION_WIDTH_NUMERIC: return UMEASFMT_WIDTH_NUMERIC;
}
NOTREACHED();
return UMEASFMT_WIDTH_COUNT;
}
const char* DateFormatToString(DateFormat format) {
switch (format) {
case DATE_FORMAT_YEAR_MONTH:
return UDAT_YEAR_MONTH;
case DATE_FORMAT_MONTH_WEEKDAY_DAY:
return UDAT_MONTH_WEEKDAY_DAY;
}
NOTREACHED();
return UDAT_YEAR_MONTH_DAY;
}
} // namespace
string16 TimeFormatTimeOfDay(const Time& time) {
// We can omit the locale parameter because the default should match
// Chrome's application locale.
std::unique_ptr<icu::DateFormat> formatter(
icu::DateFormat::createTimeInstance(icu::DateFormat::kShort));
return TimeFormat(formatter.get(), time);
}
string16 TimeFormatTimeOfDayWithMilliseconds(const Time& time) {
icu::SimpleDateFormat formatter = CreateSimpleDateFormatter("HmsSSS");
return TimeFormatWithoutAmPm(&formatter, time);
}
string16 TimeFormatTimeOfDayWithHourClockType(const Time& time,
HourClockType type,
AmPmClockType ampm) {
// Just redirect to the normal function if the default type matches the
// given type.
HourClockType default_type = GetHourClockType();
if (default_type == type && (type == k24HourClock || ampm == kKeepAmPm)) {
return TimeFormatTimeOfDay(time);
}
const char* base_pattern = (type == k12HourClock ? "ahm" : "Hm");
icu::SimpleDateFormat formatter = CreateSimpleDateFormatter(base_pattern);
if (ampm == kKeepAmPm) {
return TimeFormat(&formatter, time);
}
return TimeFormatWithoutAmPm(&formatter, time);
}
string16 TimeFormatShortDate(const Time& time) {
std::unique_ptr<icu::DateFormat> formatter(
icu::DateFormat::createDateInstance(icu::DateFormat::kMedium));
return TimeFormat(formatter.get(), time);
}
string16 TimeFormatShortDateNumeric(const Time& time) {
std::unique_ptr<icu::DateFormat> formatter(
icu::DateFormat::createDateInstance(icu::DateFormat::kShort));
return TimeFormat(formatter.get(), time);
}
string16 TimeFormatShortDateAndTime(const Time& time) {
std::unique_ptr<icu::DateFormat> formatter(
icu::DateFormat::createDateTimeInstance(icu::DateFormat::kShort));
return TimeFormat(formatter.get(), time);
}
string16 TimeFormatShortDateAndTimeWithTimeZone(const Time& time) {
std::unique_ptr<icu::DateFormat> formatter(
icu::DateFormat::createDateTimeInstance(icu::DateFormat::kShort,
icu::DateFormat::kLong));
return TimeFormat(formatter.get(), time);
}
string16 TimeFormatMonthAndYear(const Time& time) {
icu::SimpleDateFormat formatter =
CreateSimpleDateFormatter(DateFormatToString(DATE_FORMAT_YEAR_MONTH));
return TimeFormat(&formatter, time);
}
string16 TimeFormatFriendlyDateAndTime(const Time& time) {
std::unique_ptr<icu::DateFormat> formatter(
icu::DateFormat::createDateTimeInstance(icu::DateFormat::kFull));
return TimeFormat(formatter.get(), time);
}
string16 TimeFormatFriendlyDate(const Time& time) {
std::unique_ptr<icu::DateFormat> formatter(
icu::DateFormat::createDateInstance(icu::DateFormat::kFull));
return TimeFormat(formatter.get(), time);
}
string16 TimeFormatWithPattern(const Time& time, const char* pattern) {
icu::SimpleDateFormat formatter = CreateSimpleDateFormatter(pattern);
return TimeFormat(&formatter, time);
}
bool TimeDurationFormat(const TimeDelta time,
const DurationFormatWidth width,
string16* out) {
DCHECK(out);
UErrorCode status = U_ZERO_ERROR;
const int total_minutes = static_cast<int>(time.InSecondsF() / 60 + 0.5);
const int hours = total_minutes / 60;
const int minutes = total_minutes % 60;
UMeasureFormatWidth u_width = DurationWidthToMeasureWidth(width);
// TODO(derat): Delete the |status| checks and LOG(ERROR) calls throughout
// this function once the cause of http://crbug.com/677043 is tracked down.
const icu::Measure measures[] = {
icu::Measure(hours, icu::MeasureUnit::createHour(status), status),
icu::Measure(minutes, icu::MeasureUnit::createMinute(status), status)};
if (U_FAILURE(status)) {
LOG(ERROR) << "Creating MeasureUnit or Measure for " << hours << "h"
<< minutes << "m failed: " << u_errorName(status);
return false;
}
icu::MeasureFormat measure_format(icu::Locale::getDefault(), u_width, status);
if (U_FAILURE(status)) {
LOG(ERROR) << "Creating MeasureFormat for "
<< icu::Locale::getDefault().getName()
<< " failed: " << u_errorName(status);
return false;
}
icu::UnicodeString formatted;
icu::FieldPosition ignore(icu::FieldPosition::DONT_CARE);
measure_format.formatMeasures(measures, 2, formatted, ignore, status);
if (U_FAILURE(status)) {
LOG(ERROR) << "formatMeasures failed: " << u_errorName(status);
return false;
}
*out = i18n::UnicodeStringToString16(formatted);
return true;
}
bool TimeDurationFormatWithSeconds(const TimeDelta time,
const DurationFormatWidth width,
string16* out) {
DCHECK(out);
UErrorCode status = U_ZERO_ERROR;
const int64_t total_seconds = static_cast<int64_t>(time.InSecondsF() + 0.5);
const int64_t hours = total_seconds / 3600;
const int64_t minutes = (total_seconds - hours * 3600) / 60;
const int64_t seconds = total_seconds % 60;
UMeasureFormatWidth u_width = DurationWidthToMeasureWidth(width);
const icu::Measure measures[] = {
icu::Measure(hours, icu::MeasureUnit::createHour(status), status),
icu::Measure(minutes, icu::MeasureUnit::createMinute(status), status),
icu::Measure(seconds, icu::MeasureUnit::createSecond(status), status)};
icu::MeasureFormat measure_format(icu::Locale::getDefault(), u_width, status);
icu::UnicodeString formatted;
icu::FieldPosition ignore(icu::FieldPosition::DONT_CARE);
measure_format.formatMeasures(measures, 3, formatted, ignore, status);
*out = i18n::UnicodeStringToString16(formatted);
return U_SUCCESS(status) == TRUE;
}
string16 DateIntervalFormat(const Time& begin_time,
const Time& end_time,
DateFormat format) {
UErrorCode status = U_ZERO_ERROR;
std::unique_ptr<icu::DateIntervalFormat> formatter(
icu::DateIntervalFormat::createInstance(DateFormatToString(format),
status));
icu::FieldPosition pos = 0;
UDate start_date = static_cast<UDate>(begin_time.ToDoubleT() * 1000);
UDate end_date = static_cast<UDate>(end_time.ToDoubleT() * 1000);
icu::DateInterval interval(start_date, end_date);
icu::UnicodeString formatted;
formatter->format(&interval, formatted, pos, status);
return i18n::UnicodeStringToString16(formatted);
}
HourClockType GetHourClockType() {
// TODO(satorux,jshin): Rework this with ures_getByKeyWithFallback()
// once it becomes public. The short time format can be found at
// "calendar/gregorian/DateTimePatterns/3" in the resources.
std::unique_ptr<icu::SimpleDateFormat> formatter(
static_cast<icu::SimpleDateFormat*>(
icu::DateFormat::createTimeInstance(icu::DateFormat::kShort)));
// Retrieve the short time format.
icu::UnicodeString pattern_unicode;
formatter->toPattern(pattern_unicode);
// Determine what hour clock type the current locale uses, by checking
// "a" (am/pm marker) in the short time format. This is reliable as "a"
// is used by all of 12-hour clock formats, but not any of 24-hour clock
// formats, as shown below.
//
// % grep -A4 DateTimePatterns third_party/icu/source/data/locales/*.txt |
// grep -B1 -- -- |grep -v -- '--' |
// perl -nle 'print $1 if /^\S+\s+"(.*)"/' |sort -u
//
// H.mm
// H:mm
// HH.mm
// HH:mm
// a h:mm
// ah:mm
// ahh:mm
// h-mm a
// h:mm a
// hh:mm a
//
// See http://userguide.icu-project.org/formatparse/datetime for details
// about the date/time format syntax.
return pattern_unicode.indexOf('a') == -1 ? k24HourClock : k12HourClock;
}
} // namespace base