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duonglaiquangrbri
duonglaiquang
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rbri
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Intl: implement getCanonicalLocales()
1 parent d1a8e35 commit 7e74f43

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Lines changed: 113 additions & 0 deletions

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‎src/main/java/org/htmlunit/javascript/host/intl/Intl.java‎

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Original file line numberDiff line numberDiff line change
@@ -17,17 +17,27 @@
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import static org.htmlunit.BrowserVersionFeatures.JS_INTL_V8_BREAK_ITERATOR;
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import java.lang.reflect.Method;
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import java.util.ArrayList;
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import java.util.IllformedLocaleException;
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import java.util.LinkedHashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import org.htmlunit.BrowserVersion;
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import org.htmlunit.corejs.javascript.Context;
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import org.htmlunit.corejs.javascript.Function;
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import org.htmlunit.corejs.javascript.FunctionObject;
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import org.htmlunit.corejs.javascript.NativeArray;
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import org.htmlunit.corejs.javascript.Scriptable;
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import org.htmlunit.corejs.javascript.ScriptableObject;
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import org.htmlunit.corejs.javascript.TopLevel;
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import org.htmlunit.javascript.HtmlUnitScriptable;
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import org.htmlunit.javascript.JavaScriptEngine;
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import org.htmlunit.javascript.configuration.AbstractJavaScriptConfiguration;
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import org.htmlunit.javascript.configuration.ClassConfiguration;
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import org.htmlunit.javascript.configuration.JsxClass;
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import org.htmlunit.javascript.configuration.JsxStaticFunction;
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/**
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* A JavaScript object for {@code Intl}.
@@ -95,4 +105,72 @@ private static void defineStaticFunctions(final ClassConfiguration config,
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}
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}
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}
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/**
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* Returns an array containing the canonical locale names.
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* Duplicates will be omitted and elements will be validated as structurally valid language tags.
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*
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* @param cx the current context
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* @param thisObj the scriptable this
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* @param args the arguments
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* @param funObj the function object
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* @return an array of canonical locale names
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*
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* @see <a href="https://tc39.es/ecma402/#sec-intl.getcanonicallocales">spec</a>
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*/
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@JsxStaticFunction
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public static Object getCanonicalLocales(final Context cx, final Scriptable thisObj,
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final Object[] args, final Function funObj) {
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if (args.length == 0 || JavaScriptEngine.isUndefined(args[0])) {
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return cx.newArray(TopLevel.getTopLevelScope(thisObj), new Object[0]);
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}
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final Object localesArgument = args[0];
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if (localesArgument == null) {
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throw JavaScriptEngine.typeError("Cannot convert null to object");
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}
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final List<String> languageTags = new ArrayList<>();
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if (localesArgument instanceof String s) {
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languageTags.add(s);
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}
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else if (localesArgument instanceof Scriptable scriptable) {
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if ("String".equals(scriptable.getClassName()) || scriptable instanceof Locale) {
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languageTags.add(scriptable.toString());
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}
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else if (scriptable instanceof NativeArray array) {
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for (int i = 0; i < array.getLength(); i++) {
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final Object elem = array.get(i);
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if (elem instanceof String s) {
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languageTags.add(s);
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}
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else if (elem instanceof Locale) {
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languageTags.add(elem.toString());
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}
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else if (elem instanceof ScriptableObject) {
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languageTags.add(JavaScriptEngine.toString(elem));
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}
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else {
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throw JavaScriptEngine.typeError("Invalid element in locales argument");
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}
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}
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}
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else {
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languageTags.add(JavaScriptEngine.toString(localesArgument));
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}
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}
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final Set<String> canonicalLocales = new LinkedHashSet<>(languageTags.size());
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for (final String tag : languageTags) {
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try {
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canonicalLocales.add(
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new java.util.Locale.Builder().setLanguageTag(tag).build().toLanguageTag());
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}
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catch (final IllformedLocaleException e) {
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throw JavaScriptEngine.rangeError("Invalid language tag: " + tag);
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}
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}
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return cx.newArray(TopLevel.getTopLevelScope(thisObj), canonicalLocales.toArray());
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}
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}

‎src/test/java/org/htmlunit/javascript/host/intl/IntlTest.java‎

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@@ -100,4 +100,39 @@ public void v8BreakIterator() throws Exception {
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test("Intl.v8BreakIterator");
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}
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/**
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* @throws Exception if the test fails
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*/
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@Test
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@Alerts({"en-US", "en-US,fr-FR,ja-JP",
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"zh-Hant-TW", "en-Latn-US",
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"ja-JP", "en-US,fr", "en-US", "ja-JP",
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"TypeError", "", "", "RangeError", "RangeError", ""})
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public void getCanonicalLocales() throws Exception {
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final String html = DOCTYPE_HTML
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+ "<html><head>\n"
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+ "<script>\n"
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+ LOG_TITLE_FUNCTION
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+ " function test() {\n"
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+ " log(Intl.getCanonicalLocales('EN-us'));\n"
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+ " log(Intl.getCanonicalLocales(['en-US', 'fr-FR', 'ja-JP', 'EN-US']));\n"
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+ " log(Intl.getCanonicalLocales('zh-hant-tw'));\n"
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+ " log(Intl.getCanonicalLocales('en-latn-us'));\n"
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+ " log(Intl.getCanonicalLocales(new Intl.Locale('ja-JP')));\n"
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+ " log(Intl.getCanonicalLocales([new Intl.Locale('en-US'), new Intl.Locale('fr')]));\n"
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+ " log(Intl.getCanonicalLocales(new String('en-US')));\n"
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+ " log(Intl.getCanonicalLocales([new String('ja-JP')]));\n"
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+ " try { log(Intl.getCanonicalLocales(null)); } catch(e) { logEx(e) }\n"
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+ " try { log(Intl.getCanonicalLocales(undefined)); } catch(e) { logEx(e) }\n"
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+ " try { log(Intl.getCanonicalLocales([])); } catch(e) { logEx(e) }\n"
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+ " try { log(Intl.getCanonicalLocales('')); } catch(e) { logEx(e) }\n"
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+ " try { log(Intl.getCanonicalLocales('en-US!@#')); } catch(e) { logEx(e) }\n"
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+ " try { log(Intl.getCanonicalLocales(42)); } catch(e) { logEx(e) }\n"
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+ " }\n"
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+ "</script>\n"
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+ "</head><body onload='test()'>\n"
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+ "</body></html>";
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loadPageVerifyTitle2(html);
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}
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}

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