Get rid of duplicated code in accessibility settings.

Has the side effect of picking up changes to LocalePicker
that added support for 3 letter language codes.

bug: 10090157

Change-Id: I20b357c8a3e76c7cecdf623d9ed39c3751d07645

src/com/android/settings/accessibility/LocalePreference.java

@@ -21,10 +21,12 @@ import android.content.res.Resources;
 import android.preference.ListPreference;
 import android.util.AttributeSet;
 
+import com.android.internal.app.LocalePicker;
 import com.android.settings.R;
 
 import java.text.Collator;
 import java.util.Arrays;
+import java.util.List;
 import java.util.Locale;
 
 /**
@@ -43,108 +45,22 @@ public class LocalePreference extends ListPreference {
     }
 
     public void init(Context context) {
-        final String[] systemLocales = Resources.getSystem().getAssets().getLocales();
+        List<LocalePicker.LocaleInfo> locales = LocalePicker.getAllAssetLocales(context,
-        Arrays.sort(systemLocales);
+                false /* in developer mode */);
-
-        final Resources resources = context.getResources();
-        final String[] specialLocaleCodes = resources.getStringArray(
-                com.android.internal.R.array.special_locale_codes);
-        final String[] specialLocaleNames = resources.getStringArray(
-                com.android.internal.R.array.special_locale_names);
-
-        int finalSize = 0;
-
-        final int origSize = systemLocales.length;
-        final LocaleInfo[] localeInfos = new LocaleInfo[origSize];
-        for (int i = 0; i < origSize; i++) {
-            final String localeStr = systemLocales[i];
-            final int len = localeStr.length();
-            if (len != 5) {
-                continue;
-            }
-
-            final String language = localeStr.substring(0, 2);
-            final String country = localeStr.substring(3, 5);
-            final Locale l = new Locale(language, country);
-
-            if (finalSize == 0) {
-                localeInfos[finalSize++] = new LocaleInfo(l.getDisplayLanguage(l), l);
-            } else {
-                // check previous entry:
-                // same lang and a country -> upgrade to full name and
-                // insert ours with full name
-                // diff lang -> insert ours with lang-only name
-                final LocaleInfo previous = localeInfos[finalSize - 1];
-                if (previous.locale.getLanguage().equals(language)
-                        && !previous.locale.getLanguage().equals("zz")) {
-                    previous.label = getDisplayName(
-                            localeInfos[finalSize - 1].locale, specialLocaleCodes,
-                            specialLocaleNames);
-                    localeInfos[finalSize++] = new LocaleInfo(getDisplayName(l,
-                            specialLocaleCodes, specialLocaleNames), l);
-                } else {
-                    final String displayName;
-                    if (localeStr.equals("zz_ZZ")) {
-                        displayName = "[Developer] Accented English";
-                    } else if (localeStr.equals("zz_ZY")) {
-                        displayName = "[Developer] Fake Bi-Directional";
-                    } else {
-                        displayName = l.getDisplayLanguage(l);
-                    }
-                    localeInfos[finalSize++] = new LocaleInfo(displayName, l);
-                }
-            }
-        }
 
+        final int finalSize = locales.size();
         final CharSequence[] entries = new CharSequence[finalSize + 1];
         final CharSequence[] entryValues = new CharSequence[finalSize + 1];
-        Arrays.sort(localeInfos, 0, finalSize);
+        entries[0] = context.getResources().getString(R.string.locale_default);
-
-        entries[0] = resources.getString(R.string.locale_default);
         entryValues[0] = "";
 
         for (int i = 0; i < finalSize; i++) {
-            final LocaleInfo info = localeInfos[i];
+            final LocalePicker.LocaleInfo info = locales.get(i);
             entries[i + 1] = info.toString();
-            entryValues[i + 1] = info.locale.toString();
+            entryValues[i + 1] = info.getLocale().toString();
         }
 
         setEntries(entries);
         setEntryValues(entryValues);
     }
-
-    private static String getDisplayName(
-            Locale l, String[] specialLocaleCodes, String[] specialLocaleNames) {
-        String code = l.toString();
-
-        for (int i = 0; i < specialLocaleCodes.length; i++) {
-            if (specialLocaleCodes[i].equals(code)) {
-                return specialLocaleNames[i];
-            }
-        }
-
-        return l.getDisplayName(l);
-    }
-
-    private static class LocaleInfo implements Comparable<LocaleInfo> {
-        private static final Collator sCollator = Collator.getInstance();
-
-        public String label;
-        public Locale locale;
-
-        public LocaleInfo(String label, Locale locale) {
-            this.label = label;
-            this.locale = locale;
-        }
-
-        @Override
-        public String toString() {
-            return label;
-        }
-
-        @Override
-        public int compareTo(LocaleInfo another) {
-            return sCollator.compare(this.label, another.label);
-        }
-    }
 }