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authorSatoshi Kataoka <satok@google.com>2012-07-04 15:38:14 +0900
committerSatoshi Kataoka <satok@google.com>2012-07-04 15:38:21 +0900
commitc68b37964b083015967ce290991ad69d29a4055d (patch)
tree909bddc0f0c699b6344015e7ff67e31c0a1f4eff /java/src/com/android/inputmethod/latin/LocaleUtils.java
parent1e094ac19b99c47f0b8a5108e20949ac91cfa03e (diff)
parent30a324a58dbe1e2dc47d83c1bcc0af262ab0d542 (diff)
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Merge remote-tracking branch 'goog/master' into mergescript
Conflicts: CleanSpec.mk java/Android.mk java/res/drawable-large-hdpi/btn_keyboard_key_popup_selected_holo.9.png java/res/drawable-large-hdpi/hint_popup_holo.9.png java/res/drawable-large-hdpi/sym_keyboard_numsymbol_holo.png java/res/drawable-large-hdpi/sym_keyboard_tab_holo.png java/res/drawable-large-land-hdpi/hint_popup_holo.9.png java/res/drawable-large-land-mdpi/hint_popup_holo.9.png java/res/drawable-large-land-xhdpi/hint_popup_holo.9.png java/res/drawable-large-mdpi/btn_keyboard_key_dark_normal_holo.9.png java/res/drawable-large-mdpi/btn_keyboard_key_dark_normal_off_holo.9.png java/res/drawable-large-mdpi/btn_keyboard_key_dark_normal_on_holo.9.png java/res/drawable-large-mdpi/btn_keyboard_key_dark_pressed_holo.9.png java/res/drawable-large-mdpi/btn_keyboard_key_dark_pressed_off_holo.9.png java/res/drawable-large-mdpi/btn_keyboard_key_dark_pressed_on_holo.9.png java/res/drawable-large-mdpi/btn_keyboard_key_light_normal_holo.9.png java/res/drawable-large-mdpi/btn_keyboard_key_light_pressed_holo.9.png java/res/drawable-large-mdpi/btn_keyboard_key_popup_selected_holo.9.png java/res/drawable-large-mdpi/hint_popup_holo.9.png java/res/drawable-large-mdpi/keyboard_background_holo.9.png java/res/drawable-large-mdpi/keyboard_popup_panel_background_holo.9.png java/res/drawable-large-mdpi/keyboard_suggest_strip_holo.9.png java/res/drawable-large-mdpi/sym_keyboard_delete_holo.png java/res/drawable-large-mdpi/sym_keyboard_num0_holo.png java/res/drawable-large-mdpi/sym_keyboard_num1_holo.png java/res/drawable-large-mdpi/sym_keyboard_num2_holo.png java/res/drawable-large-mdpi/sym_keyboard_num3_holo.png java/res/drawable-large-mdpi/sym_keyboard_num4_holo.png java/res/drawable-large-mdpi/sym_keyboard_num5_holo.png java/res/drawable-large-mdpi/sym_keyboard_num6_holo.png java/res/drawable-large-mdpi/sym_keyboard_num7_holo.png java/res/drawable-large-mdpi/sym_keyboard_num8_holo.png java/res/drawable-large-mdpi/sym_keyboard_num9_holo.png java/res/drawable-large-mdpi/sym_keyboard_numbpound_holo.png java/res/drawable-large-mdpi/sym_keyboard_numbstar_holo.png java/res/drawable-large-mdpi/sym_keyboard_numsymbol_holo.png java/res/drawable-large-mdpi/sym_keyboard_return_holo.png java/res/drawable-large-mdpi/sym_keyboard_settings_holo.png java/res/drawable-large-mdpi/sym_keyboard_shift_holo.png java/res/drawable-large-mdpi/sym_keyboard_shift_locked_holo.png java/res/drawable-large-mdpi/sym_keyboard_space_holo.png java/res/drawable-large-mdpi/sym_keyboard_tab_holo.png java/res/drawable-large-mdpi/sym_keyboard_voice_holo.png java/res/drawable-large-mdpi/sym_keyboard_voice_off_holo.png java/res/drawable-large-xhdpi/btn_keyboard_key_popup_selected_holo.9.png java/res/drawable-large-xhdpi/hint_popup_holo.9.png java/res/drawable-large-xhdpi/sym_keyboard_numsymbol_holo.png java/res/drawable-large-xhdpi/sym_keyboard_tab_holo.png java/res/drawable-xlarge-hdpi/btn_keyboard_key_popup_selected_holo.9.png java/res/drawable-xlarge-hdpi/hint_popup_holo.9.png java/res/drawable-xlarge-land-hdpi/hint_popup_holo.9.png java/res/drawable-xlarge-land-mdpi/hint_popup_holo.9.png java/res/drawable-xlarge-land-xhdpi/hint_popup_holo.9.png java/res/drawable-xlarge-mdpi/btn_keyboard_key_dark_normal_holo.9.png java/res/drawable-xlarge-mdpi/btn_keyboard_key_dark_normal_off_holo.9.png java/res/drawable-xlarge-mdpi/btn_keyboard_key_dark_normal_on_holo.9.png java/res/drawable-xlarge-mdpi/btn_keyboard_key_dark_pressed_holo.9.png java/res/drawable-xlarge-mdpi/btn_keyboard_key_dark_pressed_off_holo.9.png java/res/drawable-xlarge-mdpi/btn_keyboard_key_dark_pressed_on_holo.9.png java/res/drawable-xlarge-mdpi/btn_keyboard_key_light_normal_holo.9.png java/res/drawable-xlarge-mdpi/btn_keyboard_key_light_pressed_holo.9.png java/res/drawable-xlarge-mdpi/btn_keyboard_key_popup_selected_holo.9.png java/res/drawable-xlarge-mdpi/hint_popup_holo.9.png java/res/drawable-xlarge-mdpi/keyboard_background_holo.9.png java/res/drawable-xlarge-mdpi/keyboard_popup_panel_background_holo.9.png java/res/drawable-xlarge-mdpi/keyboard_suggest_strip_holo.9.png java/res/drawable-xlarge-mdpi/sym_keyboard_delete_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_num0_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_num1_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_num2_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_num3_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_num4_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_num5_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_num6_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_num7_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_num8_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_num9_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_numbpound_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_numbstar_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_return_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_settings_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_shift_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_shift_locked_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_space_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_voice_holo.png java/res/drawable-xlarge-mdpi/sym_keyboard_voice_off_holo.png java/res/drawable-xlarge-xhdpi/btn_keyboard_key_popup_selected_holo.9.png java/res/drawable-xlarge-xhdpi/hint_popup_holo.9.png java/res/layout-xlarge/recognition_status.xml java/res/values-af/strings.xml java/res/values-am/strings.xml java/res/values-ar/strings.xml java/res/values-be/strings.xml java/res/values-bg/strings.xml java/res/values-ca/strings.xml java/res/values-cs/strings.xml java/res/values-da/strings.xml java/res/values-de/strings.xml java/res/values-el/strings.xml java/res/values-en-rGB/strings.xml java/res/values-es-rUS/strings.xml java/res/values-es/strings.xml java/res/values-et/strings.xml java/res/values-fa/strings.xml java/res/values-fi/strings.xml java/res/values-fr/strings.xml java/res/values-hi/strings.xml java/res/values-hr/strings.xml java/res/values-hu/strings.xml java/res/values-in/strings.xml java/res/values-it/strings.xml java/res/values-iw/strings.xml java/res/values-ja/strings.xml java/res/values-ko/strings.xml java/res/values-large/donottranslate.xml java/res/values-lt/strings.xml java/res/values-lv/strings.xml java/res/values-ms/strings.xml java/res/values-nb/strings.xml java/res/values-nl/strings.xml java/res/values-pl/strings.xml java/res/values-pt-rPT/strings.xml java/res/values-pt/strings.xml java/res/values-rm/strings.xml java/res/values-ro/strings.xml java/res/values-ru/strings.xml java/res/values-sk/strings.xml java/res/values-sl/strings.xml java/res/values-sr/strings.xml java/res/values-sv/strings.xml java/res/values-sw/strings.xml java/res/values-sw600dp/donottranslate.xml java/res/values-sw768dp/donottranslate.xml java/res/values-th/strings.xml java/res/values-tl/strings.xml java/res/values-tr/strings.xml java/res/values-uk/strings.xml java/res/values-vi/strings.xml java/res/values-xlarge/donottranslate.xml java/res/values-zh-rCN/strings.xml java/res/values-zh-rTW/strings.xml java/res/values-zu/strings.xml java/res/values/keypress-vibration-durations.xml java/res/values/predefined-subtypes.xml java/res/xml-large-land/kbd_popup_template.xml java/res/xml-large/kbd_key_styles.xml java/res/xml-large/kbd_popup_template.xml java/res/xml-large/kbd_qwerty_f2.xml java/res/xml-large/kbd_qwerty_row1.xml java/res/xml-large/kbd_qwerty_row2.xml java/res/xml-large/kbd_qwerty_row3.xml java/res/xml-large/kbd_qwerty_row4.xml java/res/xml-large/kbd_row3_right.xml java/res/xml-large/kbd_rows_arabic.xml java/res/xml-large/kbd_rows_azerty.xml java/res/xml-large/kbd_rows_hebrew.xml java/res/xml-large/kbd_rows_qwerty.xml java/res/xml-large/kbd_rows_qwertz.xml java/res/xml-large/kbd_rows_russian.xml java/res/xml-large/kbd_rows_scandinavian.xml java/res/xml-large/kbd_rows_serbian.xml java/res/xml-large/kbd_rows_spanish.xml java/res/xml-large/kbd_symbols.xml java/res/xml-large/kbd_symbols_shift.xml java/res/xml-sw600dp-land/kbd_more_keys_keyboard_template.xml java/res/xml-sw600dp-land/kbd_popup_template.xml java/res/xml-sw600dp/kbd_more_keys_keyboard_template.xml java/res/xml-sw600dp/kbd_popup_template.xml java/res/xml-sw600dp/kbd_row3_right.xml java/res/xml-sw600dp/kbd_rows_qwerty.xml java/res/xml-sw600dp/keys_comma_period.xml java/res/xml-sw768dp-land/kbd_more_keys_keyboard_template.xml java/res/xml-sw768dp-land/kbd_popup_template.xml java/res/xml-sw768dp/kbd_more_keys_keyboard_template.xml java/res/xml-sw768dp/kbd_popup_template.xml java/res/xml-sw768dp/kbd_row3_right2.xml java/res/xml-sw768dp/kbd_rows_qwerty.xml java/res/xml-sw768dp/row_symbols_shift4.xml java/res/xml-xlarge-land/kbd_popup_template.xml java/res/xml-xlarge/kbd_key_styles.xml java/res/xml-xlarge/kbd_popup_template.xml java/res/xml-xlarge/kbd_qwerty_row1.xml java/res/xml-xlarge/kbd_qwerty_row2.xml java/res/xml-xlarge/kbd_qwerty_row3.xml java/res/xml-xlarge/kbd_qwerty_row4.xml java/res/xml-xlarge/kbd_row3_right2.xml java/res/xml-xlarge/kbd_rows_arabic.xml java/res/xml-xlarge/kbd_rows_azerty.xml java/res/xml-xlarge/kbd_rows_hebrew.xml java/res/xml-xlarge/kbd_rows_qwerty.xml java/res/xml-xlarge/kbd_rows_qwertz.xml java/res/xml-xlarge/kbd_rows_russian.xml java/res/xml-xlarge/kbd_rows_scandinavian.xml java/res/xml-xlarge/kbd_rows_serbian.xml java/res/xml-xlarge/kbd_rows_spanish.xml java/res/xml-xlarge/kbd_symbols.xml java/res/xml-xlarge/kbd_symbols_shift.xml java/res/xml/key_azerty_quote.xml java/res/xml/key_f1.xml java/res/xml/method.xml java/src/com/android/inputmethod/compat/InputMethodServiceCompatWrapper.java java/src/com/android/inputmethod/latin/Utils.java native/Android.mk Change-Id: I96e8e042f636ed8e5cc023cf8514f13121e39195
Diffstat (limited to 'java/src/com/android/inputmethod/latin/LocaleUtils.java')
-rw-r--r--java/src/com/android/inputmethod/latin/LocaleUtils.java222
1 files changed, 222 insertions, 0 deletions
diff --git a/java/src/com/android/inputmethod/latin/LocaleUtils.java b/java/src/com/android/inputmethod/latin/LocaleUtils.java
new file mode 100644
index 000000000..b938dd336
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/LocaleUtils.java
@@ -0,0 +1,222 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.android.inputmethod.latin;
+
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.text.TextUtils;
+
+import java.util.HashMap;
+import java.util.Locale;
+
+/**
+ * A class to help with handling Locales in string form.
+ *
+ * This file has the same meaning and features (and shares all of its code) with
+ * the one in the dictionary pack. They need to be kept synchronized; for any
+ * update/bugfix to this file, consider also updating/fixing the version in the
+ * dictionary pack.
+ */
+public class LocaleUtils {
+ private LocaleUtils() {
+ // Intentional empty constructor for utility class.
+ }
+
+ // Locale match level constants.
+ // A higher level of match is guaranteed to have a higher numerical value.
+ // Some room is left within constants to add match cases that may arise necessary
+ // in the future, for example differentiating between the case where the countries
+ // are both present and different, and the case where one of the locales does not
+ // specify the countries. This difference is not needed now.
+
+ // Nothing matches.
+ public static final int LOCALE_NO_MATCH = 0;
+ // The languages matches, but the country are different. Or, the reference locale requires a
+ // country and the tested locale does not have one.
+ public static final int LOCALE_LANGUAGE_MATCH_COUNTRY_DIFFER = 3;
+ // The languages and country match, but the variants are different. Or, the reference locale
+ // requires a variant and the tested locale does not have one.
+ public static final int LOCALE_LANGUAGE_AND_COUNTRY_MATCH_VARIANT_DIFFER = 6;
+ // The required locale is null or empty so it will accept anything, and the tested locale
+ // is non-null and non-empty.
+ public static final int LOCALE_ANY_MATCH = 10;
+ // The language matches, and the tested locale specifies a country but the reference locale
+ // does not require one.
+ public static final int LOCALE_LANGUAGE_MATCH = 15;
+ // The language and the country match, and the tested locale specifies a variant but the
+ // reference locale does not require one.
+ public static final int LOCALE_LANGUAGE_AND_COUNTRY_MATCH = 20;
+ // The compared locales are fully identical. This is the best match level.
+ public static final int LOCALE_FULL_MATCH = 30;
+
+ // The level at which a match is "normally" considered a locale match with standard algorithms.
+ // Don't use this directly, use #isMatch to test.
+ private static final int LOCALE_MATCH = LOCALE_ANY_MATCH;
+
+ // Make this match the maximum match level. If this evolves to have more than 2 digits
+ // when written in base 10, also adjust the getMatchLevelSortedString method.
+ private static final int MATCH_LEVEL_MAX = 30;
+
+ /**
+ * Return how well a tested locale matches a reference locale.
+ *
+ * This will check the tested locale against the reference locale and return a measure of how
+ * a well it matches the reference. The general idea is that the tested locale has to match
+ * every specified part of the required locale. A full match occur when they are equal, a
+ * partial match when the tested locale agrees with the reference locale but is more specific,
+ * and a difference when the tested locale does not comply with all requirements from the
+ * reference locale.
+ * In more detail, if the reference locale specifies at least a language and the testedLocale
+ * does not specify one, or specifies a different one, LOCALE_NO_MATCH is returned. If the
+ * reference locale is empty or null, it will match anything - in the form of LOCALE_FULL_MATCH
+ * if the tested locale is empty or null, and LOCALE_ANY_MATCH otherwise. If the reference and
+ * tested locale agree on the language, but not on the country,
+ * LOCALE_LANGUAGE_MATCH_COUNTRY_DIFFER is returned if the reference locale specifies a country,
+ * and LOCALE_LANGUAGE_MATCH otherwise.
+ * If they agree on both the language and the country, but not on the variant,
+ * LOCALE_LANGUAGE_AND_COUNTRY_MATCH_VARIANT_DIFFER is returned if the reference locale
+ * specifies a variant, and LOCALE_LANGUAGE_AND_COUNTRY_MATCH otherwise. If everything matches,
+ * LOCALE_FULL_MATCH is returned.
+ * Examples:
+ * en <=> en_US => LOCALE_LANGUAGE_MATCH
+ * en_US <=> en => LOCALE_LANGUAGE_MATCH_COUNTRY_DIFFER
+ * en_US_POSIX <=> en_US_Android => LOCALE_LANGUAGE_AND_COUNTRY_MATCH_VARIANT_DIFFER
+ * en_US <=> en_US_Android => LOCALE_LANGUAGE_AND_COUNTRY_MATCH
+ * sp_US <=> en_US => LOCALE_NO_MATCH
+ * de <=> de => LOCALE_FULL_MATCH
+ * en_US <=> en_US => LOCALE_FULL_MATCH
+ * "" <=> en_US => LOCALE_ANY_MATCH
+ *
+ * @param referenceLocale the reference locale to test against.
+ * @param testedLocale the locale to test.
+ * @return a constant that measures how well the tested locale matches the reference locale.
+ */
+ public static int getMatchLevel(String referenceLocale, String testedLocale) {
+ if (TextUtils.isEmpty(referenceLocale)) {
+ return TextUtils.isEmpty(testedLocale) ? LOCALE_FULL_MATCH : LOCALE_ANY_MATCH;
+ }
+ if (null == testedLocale) return LOCALE_NO_MATCH;
+ String[] referenceParams = referenceLocale.split("_", 3);
+ String[] testedParams = testedLocale.split("_", 3);
+ // By spec of String#split, [0] cannot be null and length cannot be 0.
+ if (!referenceParams[0].equals(testedParams[0])) return LOCALE_NO_MATCH;
+ switch (referenceParams.length) {
+ case 1:
+ return 1 == testedParams.length ? LOCALE_FULL_MATCH : LOCALE_LANGUAGE_MATCH;
+ case 2:
+ if (1 == testedParams.length) return LOCALE_LANGUAGE_MATCH_COUNTRY_DIFFER;
+ if (!referenceParams[1].equals(testedParams[1]))
+ return LOCALE_LANGUAGE_MATCH_COUNTRY_DIFFER;
+ if (3 == testedParams.length) return LOCALE_LANGUAGE_AND_COUNTRY_MATCH;
+ return LOCALE_FULL_MATCH;
+ case 3:
+ if (1 == testedParams.length) return LOCALE_LANGUAGE_MATCH_COUNTRY_DIFFER;
+ if (!referenceParams[1].equals(testedParams[1]))
+ return LOCALE_LANGUAGE_MATCH_COUNTRY_DIFFER;
+ if (2 == testedParams.length) return LOCALE_LANGUAGE_AND_COUNTRY_MATCH_VARIANT_DIFFER;
+ if (!referenceParams[2].equals(testedParams[2]))
+ return LOCALE_LANGUAGE_AND_COUNTRY_MATCH_VARIANT_DIFFER;
+ return LOCALE_FULL_MATCH;
+ }
+ // It should be impossible to come here
+ return LOCALE_NO_MATCH;
+ }
+
+ /**
+ * Return a string that represents this match level, with better matches first.
+ *
+ * The strings are sorted in lexicographic order: a better match will always be less than
+ * a worse match when compared together.
+ */
+ public static String getMatchLevelSortedString(int matchLevel) {
+ // This works because the match levels are 0~99 (actually 0~30)
+ // Ideally this should use a number of digits equals to the 1og10 of the greater matchLevel
+ return String.format("%02d", MATCH_LEVEL_MAX - matchLevel);
+ }
+
+ /**
+ * Find out whether a match level should be considered a match.
+ *
+ * This method takes a match level as returned by the #getMatchLevel method, and returns whether
+ * it should be considered a match in the usual sense with standard Locale functions.
+ *
+ * @param level the match level, as returned by getMatchLevel.
+ * @return whether this is a match or not.
+ */
+ public static boolean isMatch(int level) {
+ return LOCALE_MATCH <= level;
+ }
+
+ static final Object sLockForRunInLocale = new Object();
+
+ public abstract static class RunInLocale<T> {
+ protected abstract T job(Resources res);
+
+ /**
+ * Execute {@link #job(Resources)} method in specified system locale exclusively.
+ *
+ * @param res the resources to use. Pass current resources.
+ * @param newLocale the locale to change to
+ * @return the value returned from {@link #job(Resources)}.
+ */
+ public T runInLocale(final Resources res, final Locale newLocale) {
+ synchronized (sLockForRunInLocale) {
+ final Configuration conf = res.getConfiguration();
+ final Locale oldLocale = conf.locale;
+ try {
+ if (newLocale != null && !newLocale.equals(oldLocale)) {
+ conf.locale = newLocale;
+ res.updateConfiguration(conf, null);
+ }
+ return job(res);
+ } finally {
+ if (newLocale != null && !newLocale.equals(oldLocale)) {
+ conf.locale = oldLocale;
+ res.updateConfiguration(conf, null);
+ }
+ }
+ }
+ }
+ }
+
+ private static final HashMap<String, Locale> sLocaleCache = new HashMap<String, Locale>();
+
+ /**
+ * Creates a locale from a string specification.
+ */
+ public static Locale constructLocaleFromString(final String localeStr) {
+ if (localeStr == null)
+ return null;
+ synchronized (sLocaleCache) {
+ if (sLocaleCache.containsKey(localeStr))
+ return sLocaleCache.get(localeStr);
+ Locale retval = null;
+ String[] localeParams = localeStr.split("_", 3);
+ if (localeParams.length == 1) {
+ retval = new Locale(localeParams[0]);
+ } else if (localeParams.length == 2) {
+ retval = new Locale(localeParams[0], localeParams[1]);
+ } else if (localeParams.length == 3) {
+ retval = new Locale(localeParams[0], localeParams[1], localeParams[2]);
+ }
+ if (retval != null) {
+ sLocaleCache.put(localeStr, retval);
+ }
+ return retval;
+ }
+ }
+}