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| 1 /* | |
| 2 * Copyright (C) 2011,2012 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 are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #include "config.h" | |
| 32 #include "core/platform/text/LocaleICU.h" | |
| 33 | |
| 34 #include <unicode/udatpg.h> | |
| 35 #include <unicode/uloc.h> | |
| 36 #include <limits> | |
| 37 #include "wtf/DateMath.h" | |
| 38 #include "wtf/PassOwnPtr.h" | |
| 39 #include "wtf/text/StringBuffer.h" | |
| 40 #include "wtf/text/StringBuilder.h" | |
| 41 | |
| 42 using namespace icu; | |
| 43 using namespace std; | |
| 44 | |
| 45 namespace WebCore { | |
| 46 | |
| 47 PassOwnPtr<Locale> Locale::create(const AtomicString& locale) | |
| 48 { | |
| 49 return LocaleICU::create(locale.string().utf8().data()); | |
| 50 } | |
| 51 | |
| 52 LocaleICU::LocaleICU(const char* locale) | |
| 53 : m_locale(locale) | |
| 54 , m_numberFormat(0) | |
| 55 , m_shortDateFormat(0) | |
| 56 , m_didCreateDecimalFormat(false) | |
| 57 , m_didCreateShortDateFormat(false) | |
| 58 #if ENABLE(CALENDAR_PICKER) | |
| 59 , m_firstDayOfWeek(0) | |
| 60 #endif | |
| 61 , m_mediumTimeFormat(0) | |
| 62 , m_shortTimeFormat(0) | |
| 63 , m_didCreateTimeFormat(false) | |
| 64 { | |
| 65 } | |
| 66 | |
| 67 LocaleICU::~LocaleICU() | |
| 68 { | |
| 69 unum_close(m_numberFormat); | |
| 70 udat_close(m_shortDateFormat); | |
| 71 udat_close(m_mediumTimeFormat); | |
| 72 udat_close(m_shortTimeFormat); | |
| 73 } | |
| 74 | |
| 75 PassOwnPtr<LocaleICU> LocaleICU::create(const char* localeString) | |
| 76 { | |
| 77 return adoptPtr(new LocaleICU(localeString)); | |
| 78 } | |
| 79 | |
| 80 String LocaleICU::decimalSymbol(UNumberFormatSymbol symbol) | |
| 81 { | |
| 82 UErrorCode status = U_ZERO_ERROR; | |
| 83 int32_t bufferLength = unum_getSymbol(m_numberFormat, symbol, 0, 0, &status)
; | |
| 84 ASSERT(U_SUCCESS(status) || status == U_BUFFER_OVERFLOW_ERROR); | |
| 85 if (U_FAILURE(status) && status != U_BUFFER_OVERFLOW_ERROR) | |
| 86 return String(); | |
| 87 StringBuffer<UChar> buffer(bufferLength); | |
| 88 status = U_ZERO_ERROR; | |
| 89 unum_getSymbol(m_numberFormat, symbol, buffer.characters(), bufferLength, &s
tatus); | |
| 90 if (U_FAILURE(status)) | |
| 91 return String(); | |
| 92 return String::adopt(buffer); | |
| 93 } | |
| 94 | |
| 95 String LocaleICU::decimalTextAttribute(UNumberFormatTextAttribute tag) | |
| 96 { | |
| 97 UErrorCode status = U_ZERO_ERROR; | |
| 98 int32_t bufferLength = unum_getTextAttribute(m_numberFormat, tag, 0, 0, &sta
tus); | |
| 99 ASSERT(U_SUCCESS(status) || status == U_BUFFER_OVERFLOW_ERROR); | |
| 100 if (U_FAILURE(status) && status != U_BUFFER_OVERFLOW_ERROR) | |
| 101 return String(); | |
| 102 StringBuffer<UChar> buffer(bufferLength); | |
| 103 status = U_ZERO_ERROR; | |
| 104 unum_getTextAttribute(m_numberFormat, tag, buffer.characters(), bufferLength
, &status); | |
| 105 ASSERT(U_SUCCESS(status)); | |
| 106 if (U_FAILURE(status)) | |
| 107 return String(); | |
| 108 return String::adopt(buffer); | |
| 109 } | |
| 110 | |
| 111 void LocaleICU::initializeLocaleData() | |
| 112 { | |
| 113 if (m_didCreateDecimalFormat) | |
| 114 return; | |
| 115 m_didCreateDecimalFormat = true; | |
| 116 UErrorCode status = U_ZERO_ERROR; | |
| 117 m_numberFormat = unum_open(UNUM_DECIMAL, 0, 0, m_locale.data(), 0, &status); | |
| 118 if (!U_SUCCESS(status)) | |
| 119 return; | |
| 120 | |
| 121 Vector<String, DecimalSymbolsSize> symbols; | |
| 122 symbols.append(decimalSymbol(UNUM_ZERO_DIGIT_SYMBOL)); | |
| 123 symbols.append(decimalSymbol(UNUM_ONE_DIGIT_SYMBOL)); | |
| 124 symbols.append(decimalSymbol(UNUM_TWO_DIGIT_SYMBOL)); | |
| 125 symbols.append(decimalSymbol(UNUM_THREE_DIGIT_SYMBOL)); | |
| 126 symbols.append(decimalSymbol(UNUM_FOUR_DIGIT_SYMBOL)); | |
| 127 symbols.append(decimalSymbol(UNUM_FIVE_DIGIT_SYMBOL)); | |
| 128 symbols.append(decimalSymbol(UNUM_SIX_DIGIT_SYMBOL)); | |
| 129 symbols.append(decimalSymbol(UNUM_SEVEN_DIGIT_SYMBOL)); | |
| 130 symbols.append(decimalSymbol(UNUM_EIGHT_DIGIT_SYMBOL)); | |
| 131 symbols.append(decimalSymbol(UNUM_NINE_DIGIT_SYMBOL)); | |
| 132 symbols.append(decimalSymbol(UNUM_DECIMAL_SEPARATOR_SYMBOL)); | |
| 133 symbols.append(decimalSymbol(UNUM_GROUPING_SEPARATOR_SYMBOL)); | |
| 134 ASSERT(symbols.size() == DecimalSymbolsSize); | |
| 135 setLocaleData(symbols, decimalTextAttribute(UNUM_POSITIVE_PREFIX), decimalTe
xtAttribute(UNUM_POSITIVE_SUFFIX), decimalTextAttribute(UNUM_NEGATIVE_PREFIX), d
ecimalTextAttribute(UNUM_NEGATIVE_SUFFIX)); | |
| 136 } | |
| 137 | |
| 138 bool LocaleICU::initializeShortDateFormat() | |
| 139 { | |
| 140 if (m_didCreateShortDateFormat) | |
| 141 return m_shortDateFormat; | |
| 142 m_shortDateFormat = openDateFormat(UDAT_NONE, UDAT_SHORT); | |
| 143 m_didCreateShortDateFormat = true; | |
| 144 return m_shortDateFormat; | |
| 145 } | |
| 146 | |
| 147 UDateFormat* LocaleICU::openDateFormat(UDateFormatStyle timeStyle, UDateFormatSt
yle dateStyle) const | |
| 148 { | |
| 149 const UChar gmtTimezone[3] = {'G', 'M', 'T'}; | |
| 150 UErrorCode status = U_ZERO_ERROR; | |
| 151 return udat_open(timeStyle, dateStyle, m_locale.data(), gmtTimezone, WTF_ARR
AY_LENGTH(gmtTimezone), 0, -1, &status); | |
| 152 } | |
| 153 | |
| 154 static String getDateFormatPattern(const UDateFormat* dateFormat) | |
| 155 { | |
| 156 if (!dateFormat) | |
| 157 return emptyString(); | |
| 158 | |
| 159 UErrorCode status = U_ZERO_ERROR; | |
| 160 int32_t length = udat_toPattern(dateFormat, TRUE, 0, 0, &status); | |
| 161 if (status != U_BUFFER_OVERFLOW_ERROR || !length) | |
| 162 return emptyString(); | |
| 163 StringBuffer<UChar> buffer(length); | |
| 164 status = U_ZERO_ERROR; | |
| 165 udat_toPattern(dateFormat, TRUE, buffer.characters(), length, &status); | |
| 166 if (U_FAILURE(status)) | |
| 167 return emptyString(); | |
| 168 return String::adopt(buffer); | |
| 169 } | |
| 170 | |
| 171 PassOwnPtr<Vector<String> > LocaleICU::createLabelVector(const UDateFormat* date
Format, UDateFormatSymbolType type, int32_t startIndex, int32_t size) | |
| 172 { | |
| 173 if (!dateFormat) | |
| 174 return PassOwnPtr<Vector<String> >(); | |
| 175 if (udat_countSymbols(dateFormat, type) != startIndex + size) | |
| 176 return PassOwnPtr<Vector<String> >(); | |
| 177 | |
| 178 OwnPtr<Vector<String> > labels = adoptPtr(new Vector<String>()); | |
| 179 labels->reserveCapacity(size); | |
| 180 for (int32_t i = 0; i < size; ++i) { | |
| 181 UErrorCode status = U_ZERO_ERROR; | |
| 182 int32_t length = udat_getSymbols(dateFormat, type, startIndex + i, 0, 0,
&status); | |
| 183 if (status != U_BUFFER_OVERFLOW_ERROR) | |
| 184 return PassOwnPtr<Vector<String> >(); | |
| 185 StringBuffer<UChar> buffer(length); | |
| 186 status = U_ZERO_ERROR; | |
| 187 udat_getSymbols(dateFormat, type, startIndex + i, buffer.characters(), l
ength, &status); | |
| 188 if (U_FAILURE(status)) | |
| 189 return PassOwnPtr<Vector<String> >(); | |
| 190 labels->append(String::adopt(buffer)); | |
| 191 } | |
| 192 return labels.release(); | |
| 193 } | |
| 194 | |
| 195 #if ENABLE(CALENDAR_PICKER) | |
| 196 static PassOwnPtr<Vector<String> > createFallbackWeekDayShortLabels() | |
| 197 { | |
| 198 OwnPtr<Vector<String> > labels = adoptPtr(new Vector<String>()); | |
| 199 labels->reserveCapacity(7); | |
| 200 labels->append("Sun"); | |
| 201 labels->append("Mon"); | |
| 202 labels->append("Tue"); | |
| 203 labels->append("Wed"); | |
| 204 labels->append("Thu"); | |
| 205 labels->append("Fri"); | |
| 206 labels->append("Sat"); | |
| 207 return labels.release(); | |
| 208 } | |
| 209 | |
| 210 void LocaleICU::initializeCalendar() | |
| 211 { | |
| 212 if (m_weekDayShortLabels) | |
| 213 return; | |
| 214 | |
| 215 if (!initializeShortDateFormat()) { | |
| 216 m_firstDayOfWeek = 0; | |
| 217 m_weekDayShortLabels = createFallbackWeekDayShortLabels(); | |
| 218 return; | |
| 219 } | |
| 220 m_firstDayOfWeek = ucal_getAttribute(udat_getCalendar(m_shortDateFormat), UC
AL_FIRST_DAY_OF_WEEK) - UCAL_SUNDAY; | |
| 221 | |
| 222 m_weekDayShortLabels = createLabelVector(m_shortDateFormat, UDAT_SHORT_WEEKD
AYS, UCAL_SUNDAY, 7); | |
| 223 if (!m_weekDayShortLabels) | |
| 224 m_weekDayShortLabels = createFallbackWeekDayShortLabels(); | |
| 225 } | |
| 226 #endif | |
| 227 | |
| 228 static PassOwnPtr<Vector<String> > createFallbackMonthLabels() | |
| 229 { | |
| 230 OwnPtr<Vector<String> > labels = adoptPtr(new Vector<String>()); | |
| 231 labels->reserveCapacity(WTF_ARRAY_LENGTH(WTF::monthFullName)); | |
| 232 for (unsigned i = 0; i < WTF_ARRAY_LENGTH(WTF::monthFullName); ++i) | |
| 233 labels->append(WTF::monthFullName[i]); | |
| 234 return labels.release(); | |
| 235 } | |
| 236 | |
| 237 const Vector<String>& LocaleICU::monthLabels() | |
| 238 { | |
| 239 if (m_monthLabels) | |
| 240 return *m_monthLabels; | |
| 241 if (initializeShortDateFormat()) { | |
| 242 m_monthLabels = createLabelVector(m_shortDateFormat, UDAT_MONTHS, UCAL_J
ANUARY, 12); | |
| 243 if (m_monthLabels) | |
| 244 return *m_monthLabels; | |
| 245 } | |
| 246 m_monthLabels = createFallbackMonthLabels(); | |
| 247 return *m_monthLabels; | |
| 248 } | |
| 249 | |
| 250 #if ENABLE(CALENDAR_PICKER) | |
| 251 const Vector<String>& LocaleICU::weekDayShortLabels() | |
| 252 { | |
| 253 initializeCalendar(); | |
| 254 return *m_weekDayShortLabels; | |
| 255 } | |
| 256 | |
| 257 unsigned LocaleICU::firstDayOfWeek() | |
| 258 { | |
| 259 initializeCalendar(); | |
| 260 return m_firstDayOfWeek; | |
| 261 } | |
| 262 | |
| 263 bool LocaleICU::isRTL() | |
| 264 { | |
| 265 UErrorCode status = U_ZERO_ERROR; | |
| 266 return uloc_getCharacterOrientation(m_locale.data(), &status) == ULOC_LAYOUT
_RTL; | |
| 267 } | |
| 268 #endif | |
| 269 | |
| 270 static PassOwnPtr<Vector<String> > createFallbackAMPMLabels() | |
| 271 { | |
| 272 OwnPtr<Vector<String> > labels = adoptPtr(new Vector<String>()); | |
| 273 labels->reserveCapacity(2); | |
| 274 labels->append("AM"); | |
| 275 labels->append("PM"); | |
| 276 return labels.release(); | |
| 277 } | |
| 278 | |
| 279 void LocaleICU::initializeDateTimeFormat() | |
| 280 { | |
| 281 if (m_didCreateTimeFormat) | |
| 282 return; | |
| 283 | |
| 284 // We assume ICU medium time pattern and short time pattern are compatible | |
| 285 // with LDML, because ICU specific pattern character "V" doesn't appear | |
| 286 // in both medium and short time pattern. | |
| 287 m_mediumTimeFormat = openDateFormat(UDAT_MEDIUM, UDAT_NONE); | |
| 288 m_timeFormatWithSeconds = getDateFormatPattern(m_mediumTimeFormat); | |
| 289 | |
| 290 m_shortTimeFormat = openDateFormat(UDAT_SHORT, UDAT_NONE); | |
| 291 m_timeFormatWithoutSeconds = getDateFormatPattern(m_shortTimeFormat); | |
| 292 | |
| 293 UDateFormat* dateTimeFormatWithSeconds = openDateFormat(UDAT_MEDIUM, UDAT_SH
ORT); | |
| 294 m_dateTimeFormatWithSeconds = getDateFormatPattern(dateTimeFormatWithSeconds
); | |
| 295 udat_close(dateTimeFormatWithSeconds); | |
| 296 | |
| 297 UDateFormat* dateTimeFormatWithoutSeconds = openDateFormat(UDAT_SHORT, UDAT_
SHORT); | |
| 298 m_dateTimeFormatWithoutSeconds = getDateFormatPattern(dateTimeFormatWithoutS
econds); | |
| 299 udat_close(dateTimeFormatWithoutSeconds); | |
| 300 | |
| 301 OwnPtr<Vector<String> > timeAMPMLabels = createLabelVector(m_mediumTimeForma
t, UDAT_AM_PMS, UCAL_AM, 2); | |
| 302 if (!timeAMPMLabels) | |
| 303 timeAMPMLabels = createFallbackAMPMLabels(); | |
| 304 m_timeAMPMLabels = *timeAMPMLabels; | |
| 305 | |
| 306 m_didCreateTimeFormat = true; | |
| 307 } | |
| 308 | |
| 309 String LocaleICU::dateFormat() | |
| 310 { | |
| 311 if (!m_dateFormat.isNull()) | |
| 312 return m_dateFormat; | |
| 313 if (!initializeShortDateFormat()) | |
| 314 return "yyyy-MM-dd"; | |
| 315 m_dateFormat = getDateFormatPattern(m_shortDateFormat); | |
| 316 return m_dateFormat; | |
| 317 } | |
| 318 | |
| 319 static String getFormatForSkeleton(const char* locale, const String& skeleton) | |
| 320 { | |
| 321 String format = "yyyy-MM"; | |
| 322 UErrorCode status = U_ZERO_ERROR; | |
| 323 UDateTimePatternGenerator* patternGenerator = udatpg_open(locale, &status); | |
| 324 if (!patternGenerator) | |
| 325 return format; | |
| 326 status = U_ZERO_ERROR; | |
| 327 Vector<UChar> skeletonCharacters; | |
| 328 skeleton.appendTo(skeletonCharacters); | |
| 329 int32_t length = udatpg_getBestPattern(patternGenerator, skeletonCharacters.
data(), skeletonCharacters.size(), 0, 0, &status); | |
| 330 if (status == U_BUFFER_OVERFLOW_ERROR && length) { | |
| 331 StringBuffer<UChar> buffer(length); | |
| 332 status = U_ZERO_ERROR; | |
| 333 udatpg_getBestPattern(patternGenerator, skeletonCharacters.data(), skele
tonCharacters.size(), buffer.characters(), length, &status); | |
| 334 if (U_SUCCESS(status)) | |
| 335 format = String::adopt(buffer); | |
| 336 } | |
| 337 udatpg_close(patternGenerator); | |
| 338 return format; | |
| 339 } | |
| 340 | |
| 341 String LocaleICU::monthFormat() | |
| 342 { | |
| 343 if (!m_monthFormat.isNull()) | |
| 344 return m_monthFormat; | |
| 345 // Gets a format for "MMMM" because Windows API always provides formats for | |
| 346 // "MMMM" in some locales. | |
| 347 m_monthFormat = getFormatForSkeleton(m_locale.data(), "yyyyMMMM"); | |
| 348 return m_monthFormat; | |
| 349 } | |
| 350 | |
| 351 String LocaleICU::shortMonthFormat() | |
| 352 { | |
| 353 if (!m_shortMonthFormat.isNull()) | |
| 354 return m_shortMonthFormat; | |
| 355 m_shortMonthFormat = getFormatForSkeleton(m_locale.data(), "yyyyMMM"); | |
| 356 return m_shortMonthFormat; | |
| 357 } | |
| 358 | |
| 359 String LocaleICU::timeFormat() | |
| 360 { | |
| 361 initializeDateTimeFormat(); | |
| 362 return m_timeFormatWithSeconds; | |
| 363 } | |
| 364 | |
| 365 String LocaleICU::shortTimeFormat() | |
| 366 { | |
| 367 initializeDateTimeFormat(); | |
| 368 return m_timeFormatWithoutSeconds; | |
| 369 } | |
| 370 | |
| 371 String LocaleICU::dateTimeFormatWithSeconds() | |
| 372 { | |
| 373 initializeDateTimeFormat(); | |
| 374 return m_dateTimeFormatWithSeconds; | |
| 375 } | |
| 376 | |
| 377 String LocaleICU::dateTimeFormatWithoutSeconds() | |
| 378 { | |
| 379 initializeDateTimeFormat(); | |
| 380 return m_dateTimeFormatWithoutSeconds; | |
| 381 } | |
| 382 | |
| 383 const Vector<String>& LocaleICU::shortMonthLabels() | |
| 384 { | |
| 385 if (!m_shortMonthLabels.isEmpty()) | |
| 386 return m_shortMonthLabels; | |
| 387 if (initializeShortDateFormat()) { | |
| 388 if (OwnPtr<Vector<String> > labels = createLabelVector(m_shortDateFormat
, UDAT_SHORT_MONTHS, UCAL_JANUARY, 12)) { | |
| 389 m_shortMonthLabels = *labels; | |
| 390 return m_shortMonthLabels; | |
| 391 } | |
| 392 } | |
| 393 m_shortMonthLabels.reserveCapacity(WTF_ARRAY_LENGTH(WTF::monthName)); | |
| 394 for (unsigned i = 0; i < WTF_ARRAY_LENGTH(WTF::monthName); ++i) | |
| 395 m_shortMonthLabels.append(WTF::monthName[i]); | |
| 396 return m_shortMonthLabels; | |
| 397 } | |
| 398 | |
| 399 const Vector<String>& LocaleICU::standAloneMonthLabels() | |
| 400 { | |
| 401 if (!m_standAloneMonthLabels.isEmpty()) | |
| 402 return m_standAloneMonthLabels; | |
| 403 if (initializeShortDateFormat()) { | |
| 404 if (OwnPtr<Vector<String> > labels = createLabelVector(m_shortDateFormat
, UDAT_STANDALONE_MONTHS, UCAL_JANUARY, 12)) { | |
| 405 m_standAloneMonthLabels = *labels; | |
| 406 return m_standAloneMonthLabels; | |
| 407 } | |
| 408 } | |
| 409 m_standAloneMonthLabels = monthLabels(); | |
| 410 return m_standAloneMonthLabels; | |
| 411 } | |
| 412 | |
| 413 const Vector<String>& LocaleICU::shortStandAloneMonthLabels() | |
| 414 { | |
| 415 if (!m_shortStandAloneMonthLabels.isEmpty()) | |
| 416 return m_shortStandAloneMonthLabels; | |
| 417 if (initializeShortDateFormat()) { | |
| 418 if (OwnPtr<Vector<String> > labels = createLabelVector(m_shortDateFormat
, UDAT_STANDALONE_SHORT_MONTHS, UCAL_JANUARY, 12)) { | |
| 419 m_shortStandAloneMonthLabels = *labels; | |
| 420 return m_shortStandAloneMonthLabels; | |
| 421 } | |
| 422 } | |
| 423 m_shortStandAloneMonthLabels = shortMonthLabels(); | |
| 424 return m_shortStandAloneMonthLabels; | |
| 425 } | |
| 426 | |
| 427 const Vector<String>& LocaleICU::timeAMPMLabels() | |
| 428 { | |
| 429 initializeDateTimeFormat(); | |
| 430 return m_timeAMPMLabels; | |
| 431 } | |
| 432 | |
| 433 } // namespace WebCore | |
| 434 | |
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Chromium Code Reviews
Issue 26113002:
Move core/platform/text/Locale* to platform/text (Closed)
Base URL: svn://svn.chromium.org/blink/trunk