[Panlingual]Enhance App's suggested language (3467d1ba) · Commits · e / os / android_frameworks_base

core/java/com/android/internal/app/AppLocaleCollector.java

+228 −30

Original line number	Diff line number	Diff line
		@@ -19,49 +19,184 @@ package com.android.internal.app;
		import static com.android.internal.app.AppLocaleStore.AppLocaleResult.LocaleStatus.GET_SUPPORTED_LANGUAGE_FROM_ASSET;
		import static com.android.internal.app.AppLocaleStore.AppLocaleResult.LocaleStatus.GET_SUPPORTED_LANGUAGE_FROM_LOCAL_CONFIG;

		import android.app.LocaleManager;
		import android.content.Context;
		import android.content.pm.ApplicationInfo;
		import android.content.pm.PackageManager;
		import android.os.Build;
		import android.os.LocaleList;
		import android.os.SystemProperties;
		import android.provider.Settings;
		import android.util.Log;
		import android.view.inputmethod.InputMethodInfo;
		import android.view.inputmethod.InputMethodManager;

		import com.android.internal.annotations.VisibleForTesting;

		import java.util.HashMap;
		import java.util.HashSet;
		import java.util.List;
		import java.util.Locale;
		import java.util.Set;
		import java.util.stream.Collectors;

		/** The Locale data collector for per-app language. */
		class AppLocaleCollector implements LocalePickerWithRegion.LocaleCollectorBase {
		public class AppLocaleCollector implements LocalePickerWithRegion.LocaleCollectorBase {
		private static final String TAG = AppLocaleCollector.class.getSimpleName();
		private final Context mContext;
		private final String mAppPackageName;
		private final LocaleStore.LocaleInfo mAppCurrentLocale;
		private LocaleStore.LocaleInfo mAppCurrentLocale;
		private Set<LocaleStore.LocaleInfo> mAllAppActiveLocales;
		private Set<LocaleStore.LocaleInfo> mImeLocales;
		private static final String PROP_APP_LANGUAGE_SUGGESTION =
		"android.app.language.suggestion.enhanced";
		private static final boolean ENABLED = true;

		AppLocaleCollector(Context context, String appPackageName) {
		public AppLocaleCollector(Context context, String appPackageName) {
		mContext = context;
		mAppPackageName = appPackageName;
		mAppCurrentLocale = LocaleStore.getAppCurrentLocaleInfo(
		mContext, mAppPackageName);
		}

		@VisibleForTesting
		public LocaleStore.LocaleInfo getAppCurrentLocale() {
		return LocaleStore.getAppActivatedLocaleInfo(mContext, mAppPackageName, true);
		}

		/**
		* Get all applications' activated locales.
		* @return A set which includes all applications' activated LocaleInfo.
		*/
		@VisibleForTesting
		public Set<LocaleStore.LocaleInfo> getAllAppActiveLocales() {
		PackageManager pm = mContext.getPackageManager();
		LocaleManager lm = mContext.getSystemService(LocaleManager.class);
		HashSet<LocaleStore.LocaleInfo> result = new HashSet<>();
		if (pm != null && lm != null) {
		HashMap<String, LocaleStore.LocaleInfo> map = new HashMap<>();
		for (ApplicationInfo appInfo : pm.getInstalledApplications(
		PackageManager.ApplicationInfoFlags.of(0))) {
		LocaleStore.LocaleInfo localeInfo = LocaleStore.getAppActivatedLocaleInfo(
		mContext, appInfo.packageName, false);
		// For the locale to be added into the suggestion area, its country could not be
		// empty.
		if (localeInfo != null && localeInfo.getLocale().getCountry().length() > 0) {
		map.put(localeInfo.getId(), localeInfo);
		}
		}
		map.forEach((language, localeInfo) -> result.add(localeInfo));
		}
		return result;
		}

		/**
		* Get all locales that active IME supports.
		*
		* @return A set which includes all LocaleInfo that active IME supports.
		*/
		@VisibleForTesting
		public Set<LocaleStore.LocaleInfo> getActiveImeLocales() {
		Set<LocaleStore.LocaleInfo> activeImeLocales = null;
		InputMethodManager imm = mContext.getSystemService(InputMethodManager.class);
		if (imm != null) {
		InputMethodInfo activeIme = getActiveIme(imm);
		if (activeIme != null) {
		activeImeLocales = LocaleStore.transformImeLanguageTagToLocaleInfo(
		imm.getEnabledInputMethodSubtypeList(activeIme, true));
		}
		}
		if (activeImeLocales == null) {
		return Set.of();
		} else {
		return activeImeLocales.stream().filter(
		// For the locale to be added into the suggestion area, its country could not be
		// empty.
		info -> info.getLocale().getCountry().length() > 0).collect(
		Collectors.toSet());
		}
		}

		private InputMethodInfo getActiveIme(InputMethodManager imm) {
		InputMethodInfo activeIme = null;
		List<InputMethodInfo> infoList = imm.getEnabledInputMethodList();
		String imeId = Settings.Secure.getStringForUser(mContext.getContentResolver(),
		Settings.Secure.DEFAULT_INPUT_METHOD, mContext.getUserId());
		for (InputMethodInfo method : infoList) {
		if (method.getId().equals(imeId)) {
		activeIme = method;
		}
		}
		return activeIme;
		}

		/**
		* Get the AppLocaleResult that the application supports.
		* @return The AppLocaleResult that the application supports.
		*/
		@VisibleForTesting
		public AppLocaleStore.AppLocaleResult getAppSupportedLocales() {
		return AppLocaleStore.getAppSupportedLocales(mContext, mAppPackageName);
		}

		/**
		* Get the locales that system supports excluding langTagsToIgnore.
		*
		* @param langTagsToIgnore A language set to be ignored.
		* @param parent The parent locale.
		* @param translatedOnly specified if is is only for translation.
		* @return A set which includes the LocaleInfo that system supports, excluding langTagsToIgnore.
		*/
		@VisibleForTesting
		public Set<LocaleStore.LocaleInfo> getSystemSupportedLocale(Set<String> langTagsToIgnore,
		LocaleStore.LocaleInfo parent, boolean translatedOnly) {
		return LocaleStore.getLevelLocales(mContext, langTagsToIgnore, parent, translatedOnly);
		}

		/**
		* Get the locales that system activates.
		* @return A set which includes all the locales that system activates.
		*/
		@VisibleForTesting
		public List<LocaleStore.LocaleInfo> getSystemCurrentLocale() {
		return LocaleStore.getSystemCurrentLocaleInfo();
		}

		@Override
		public HashSet<String> getIgnoredLocaleList(boolean translatedOnly) {
		HashSet<String> langTagsToIgnore = new HashSet<>();

		if (mAppCurrentLocale != null) {
		langTagsToIgnore.add(mAppCurrentLocale.getLocale().toLanguageTag());
		}

		if (SystemProperties.getBoolean(PROP_APP_LANGUAGE_SUGGESTION, ENABLED)) {
		// Add the locale that other App activated
		mAllAppActiveLocales.forEach(
		info -> langTagsToIgnore.add(info.getLocale().toLanguageTag()));
		// Add the locale that active IME enabled
		mImeLocales.forEach(info -> langTagsToIgnore.add(info.getLocale().toLanguageTag()));
		}

		// Add System locales
		LocaleList systemLangList = LocaleList.getDefault();
		for (int i = 0; i < systemLangList.size(); i++) {
		langTagsToIgnore.add(systemLangList.get(i).toLanguageTag());
		}

		if (mAppCurrentLocale != null) {
		langTagsToIgnore.add(mAppCurrentLocale.getLocale().toLanguageTag());
		}
		return langTagsToIgnore;
		}

		@Override
		public Set<LocaleStore.LocaleInfo> getSupportedLocaleList(LocaleStore.LocaleInfo parent,
		boolean translatedOnly, boolean isForCountryMode) {
		AppLocaleStore.AppLocaleResult result =
		AppLocaleStore.getAppSupportedLocales(mContext, mAppPackageName);
		if (mAppCurrentLocale == null) {
		mAppCurrentLocale = getAppCurrentLocale();
		}
		if (mAllAppActiveLocales == null) {
		mAllAppActiveLocales = getAllAppActiveLocales();
		}
		if (mImeLocales == null) {
		mImeLocales = getActiveImeLocales();
		}
		AppLocaleStore.AppLocaleResult result = getAppSupportedLocales();
		Set<String> langTagsToIgnore = getIgnoredLocaleList(translatedOnly);
		Set<LocaleStore.LocaleInfo> appLocaleList = new HashSet<>();
		Set<LocaleStore.LocaleInfo> systemLocaleList;
		@@ -71,11 +206,9 @@ class AppLocaleCollector implements LocalePickerWithRegion.LocaleCollectorBase {

		// Get system supported locale list
		if (isForCountryMode) {
		systemLocaleList = LocaleStore.getLevelLocales(mContext,
		langTagsToIgnore, parent, translatedOnly);
		systemLocaleList = getSystemSupportedLocale(langTagsToIgnore, parent, translatedOnly);
		} else {
		systemLocaleList = LocaleStore.getLevelLocales(mContext, langTagsToIgnore,
		null /* no parent */, translatedOnly);
		systemLocaleList = getSystemSupportedLocale(langTagsToIgnore, null, translatedOnly);
		}

		// Add current app locale
		@@ -84,19 +217,46 @@ class AppLocaleCollector implements LocalePickerWithRegion.LocaleCollectorBase {
		}

		// Add current system language into suggestion list
		for(LocaleStore.LocaleInfo localeInfo:
		LocaleStore.getSystemCurrentLocaleInfo()) {
		boolean isNotCurrentLocale = mAppCurrentLocale == null
		\|\| !localeInfo.getLocale().equals(mAppCurrentLocale.getLocale());
		if (!isForCountryMode && isNotCurrentLocale) {
		if (!isForCountryMode) {
		boolean isCurrentLocale, isInAppOrIme;
		for (LocaleStore.LocaleInfo localeInfo : getSystemCurrentLocale()) {
		isCurrentLocale = mAppCurrentLocale != null
		&& localeInfo.getLocale().equals(mAppCurrentLocale.getLocale());
		isInAppOrIme = existsInAppOrIme(localeInfo.getLocale());
		if (!isCurrentLocale && !isInAppOrIme) {
		appLocaleList.add(localeInfo);
		}
		}
		}

		// Add the languages that included in system supported locale
		// Add the languages that are included in system supported locale
		Set<LocaleStore.LocaleInfo> suggestedSet = null;
		if (shouldShowList) {
		appLocaleList.addAll(filterTheLanguagesNotIncludedInSystemLocale(
		systemLocaleList, result.mAppSupportedLocales));
		appLocaleList.addAll(filterSupportedLocales(systemLocaleList,
		result.mAppSupportedLocales));
		suggestedSet = getSuggestedLocales(appLocaleList);
		}

		if (!isForCountryMode && SystemProperties.getBoolean(PROP_APP_LANGUAGE_SUGGESTION,
		ENABLED)) {
		// Add the language that other apps activate into the suggestion list.
		Set<LocaleStore.LocaleInfo> localeSet = filterSupportedLocales(mAllAppActiveLocales,
		result.mAppSupportedLocales);
		if (suggestedSet != null) {
		// Filter out the locale with the same language and country
		// like zh-TW vs zh-Hant-TW.
		localeSet = filterSameLanguageAndCountry(localeSet, suggestedSet);
		}
		appLocaleList.addAll(localeSet);
		suggestedSet.addAll(localeSet);

		// Add the language that the active IME enables into the suggestion list.
		localeSet = filterSupportedLocales(mImeLocales, result.mAppSupportedLocales);
		if (suggestedSet != null) {
		localeSet = filterSameLanguageAndCountry(localeSet, suggestedSet);
		}
		appLocaleList.addAll(localeSet);
		suggestedSet.addAll(localeSet);
		}

		// Add "system language" option
		@@ -117,12 +277,50 @@ class AppLocaleCollector implements LocalePickerWithRegion.LocaleCollectorBase {
		return true;
		}

		private Set<LocaleStore.LocaleInfo> filterTheLanguagesNotIncludedInSystemLocale(
		Set<LocaleStore.LocaleInfo> systemLocaleList,
		private Set<LocaleStore.LocaleInfo> getSuggestedLocales(Set<LocaleStore.LocaleInfo> localeSet) {
		return localeSet.stream().filter(localeInfo -> localeInfo.isSuggested()).collect(
		Collectors.toSet());
		}

		private Set<LocaleStore.LocaleInfo> filterSameLanguageAndCountry(
		Set<LocaleStore.LocaleInfo> newLocaleList,
		Set<LocaleStore.LocaleInfo> existingLocaleList) {
		Set<LocaleStore.LocaleInfo> result = new HashSet<>(newLocaleList.size());
		for (LocaleStore.LocaleInfo appLocaleInfo : newLocaleList) {
		boolean same = false;
		Locale appLocale = appLocaleInfo.getLocale();
		for (LocaleStore.LocaleInfo localeInfo : existingLocaleList) {
		Locale suggested = localeInfo.getLocale();
		if (appLocale.getLanguage().equals(suggested.getLanguage())
		&& appLocale.getCountry().equals(suggested.getCountry())) {
		same = true;
		break;
		}
		}
		if (!same) {
		result.add(appLocaleInfo);
		}
		}
		return result;
		}

		private boolean existsInAppOrIme(Locale locale) {
		boolean existInApp = mAllAppActiveLocales.stream().anyMatch(
		localeInfo -> localeInfo.getLocale().equals(locale));
		if (existInApp) {
		return true;
		} else {
		return mImeLocales.stream().anyMatch(
		localeInfo -> localeInfo.getLocale().equals(locale));
		}
		}

		private Set<LocaleStore.LocaleInfo> filterSupportedLocales(
		Set<LocaleStore.LocaleInfo> suggestedLocales,
		HashSet<Locale> appSupportedLocales) {
		Set<LocaleStore.LocaleInfo> filteredList = new HashSet<>();

		for(LocaleStore.LocaleInfo li: systemLocaleList) {
		for (LocaleStore.LocaleInfo li : suggestedLocales) {
		if (appSupportedLocales.contains(li.getLocale())) {
		filteredList.add(li);
		} else {

core/java/com/android/internal/app/AppLocaleStore.java

+10 −4

Original line number	Diff line number	Diff line
		@@ -30,7 +30,10 @@ import java.util.HashSet;
		import java.util.Locale;
		import java.util.stream.Collectors;

		class AppLocaleStore {
		/**
		* A class used to access an application's supporting locales.
		*/
		public class AppLocaleStore {
		private static final String TAG = AppLocaleStore.class.getSimpleName();

		public static AppLocaleResult getAppSupportedLocales(
		@@ -148,8 +151,11 @@ class AppLocaleStore {
		return false;
		}

		static class AppLocaleResult {
		enum LocaleStatus {
		/**
		* A class used to store an application's supporting locales.
		*/
		public static class AppLocaleResult {
		public enum LocaleStatus {
		UNKNOWN_FAILURE,
		NO_SUPPORTED_LANGUAGE_IN_APP,
		ASSET_LOCALE_IS_EMPTY,
		@@ -158,7 +164,7 @@ class AppLocaleStore {
		}

		LocaleStatus mLocaleStatus;
		HashSet<Locale> mAppSupportedLocales;
		public HashSet<Locale> mAppSupportedLocales;

		public AppLocaleResult(LocaleStatus localeStatus, HashSet<Locale> appSupportedLocales) {
		this.mLocaleStatus = localeStatus;

core/java/com/android/internal/app/LocaleStore.java

+47 −5

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@ import android.os.LocaleList;
		import android.provider.Settings;
		import android.telephony.TelephonyManager;
		import android.util.Log;
		import android.view.inputmethod.InputMethodSubtype;

		import com.android.internal.annotations.VisibleForTesting;

		@@ -45,10 +46,11 @@ public class LocaleStore {
		@VisibleForTesting static final int SUGGESTION_TYPE_SIM = 1 << 0;
		@VisibleForTesting static final int SUGGESTION_TYPE_CFG = 1 << 1;
		// Only for per-app language picker
		private static final int SUGGESTION_TYPE_CURRENT = 1 << 2;
		@VisibleForTesting static final int SUGGESTION_TYPE_CURRENT = 1 << 2;
		// Only for per-app language picker
		private static final int SUGGESTION_TYPE_SYSTEM_LANGUAGE = 1 << 3;

		@VisibleForTesting static final int SUGGESTION_TYPE_SYSTEM_LANGUAGE = 1 << 3;
		// Only for per-app language picker
		@VisibleForTesting static final int SUGGESTION_TYPE_OTHER_APP_LANGUAGE = 1 << 4;
		private final Locale mLocale;
		private final Locale mParent;
		private final String mId;
		@@ -259,7 +261,16 @@ public class LocaleStore {
		}
		}

		public static LocaleInfo getAppCurrentLocaleInfo(Context context, String appPackageName) {
		/**
		* Get the application's activated locale.
		*
		* @param context UI activity's context.
		* @param appPackageName The application's package name.
		* @param isAppSelected True if the application is selected in the UI; false otherwise.
		* @return A LocaleInfo with the application's activated locale.
		*/
		public static LocaleInfo getAppActivatedLocaleInfo(Context context, String appPackageName,
		boolean isAppSelected) {
		if (appPackageName == null) {
		return null;
		}
		@@ -272,7 +283,11 @@ public class LocaleStore {

		if (locale != null) {
		LocaleInfo localeInfo = new LocaleInfo(locale);
		if (isAppSelected) {
		localeInfo.mSuggestionFlags \|= LocaleInfo.SUGGESTION_TYPE_CURRENT;
		} else {
		localeInfo.mSuggestionFlags \|= LocaleInfo.SUGGESTION_TYPE_OTHER_APP_LANGUAGE;
		}
		localeInfo.mIsTranslated = true;
		return localeInfo;
		}
		@@ -282,6 +297,24 @@ public class LocaleStore {
		return null;
		}

		/**
		* Transform IME's language tag to LocaleInfo.
		*
		* @param list A list which includes IME's subtype.
		* @return A LocaleInfo set which includes IME's language tags.
		*/
		public static Set<LocaleInfo> transformImeLanguageTagToLocaleInfo(
		List<InputMethodSubtype> list) {
		Set<LocaleInfo> imeLocales = new HashSet<>();
		for (InputMethodSubtype subtype : list) {
		LocaleInfo localeInfo = new LocaleInfo(subtype.getLanguageTag());
		localeInfo.mSuggestionFlags \|= LocaleInfo.SUGGESTION_TYPE_OTHER_APP_LANGUAGE;
		localeInfo.mIsTranslated = true;
		imeLocales.add(localeInfo);
		}
		return imeLocales;
		}

		/**
		* Returns a list of system languages with LocaleInfo
		*/
		@@ -458,4 +491,13 @@ public class LocaleStore {
		}
		return result;
		}

		/**
		* API for testing.
		*/
		@UnsupportedAppUsage
		@VisibleForTesting
		public static LocaleInfo fromLocale(Locale locale) {
		return new LocaleInfo(locale);
		}
		}

tests/Internal/src/com/android/internal/app/AppLocaleCollectorTest.java

0 → 100644

+170 −0

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tests/Internal/src/com/android/internal/app/LocaleStoreTest.java

0 → 100644

+63 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2022 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.internal.app;

		import static org.junit.Assert.assertEquals;
		import static org.junit.Assert.assertTrue;

		import android.view.inputmethod.InputMethodSubtype;
		import android.view.inputmethod.InputMethodSubtype.InputMethodSubtypeBuilder;

		import androidx.test.filters.SmallTest;
		import androidx.test.runner.AndroidJUnit4;

		import com.android.internal.app.LocaleStore.LocaleInfo;

		import org.junit.Before;
		import org.junit.Test;
		import org.junit.runner.RunWith;

		import java.util.List;
		import java.util.Set;

		/**
		* Unit tests for the {@link LocaleStore}.
		*/
		@SmallTest
		@RunWith(AndroidJUnit4.class)
		public class LocaleStoreTest {
		@Before
		public void setUp() {
		}

		@Test
		public void testTransformImeLanguageTagToLocaleInfo() {
		List<InputMethodSubtype> list = List.of(
		new InputMethodSubtypeBuilder().setLanguageTag("en-US").build(),
		new InputMethodSubtypeBuilder().setLanguageTag("zh-TW").build(),
		new InputMethodSubtypeBuilder().setLanguageTag("ja-JP").build());

		Set<LocaleInfo> localeSet = LocaleStore.transformImeLanguageTagToLocaleInfo(list);

		Set<String> expectedLanguageTag = Set.of("en-US", "zh-TW", "ja-JP");
		assertEquals(localeSet.size(), expectedLanguageTag.size());
		for (LocaleInfo info : localeSet) {
		assertEquals(info.mSuggestionFlags, LocaleInfo.SUGGESTION_TYPE_OTHER_APP_LANGUAGE);
		assertTrue(expectedLanguageTag.contains(info.getId()));
		}
		}
		}