[ML12] Add a getPrimaryLocale function and some refactoring

Bug: 11230254
Change-Id: Ic579b93702c24f47e6cdb0c9a4da6b11f1fa76c8

1 files changed, 36 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/latin/DictionaryFacilitator.java b/java/src/com/android/inputmethod/latin/DictionaryFacilitator.java
index 6dc1e8273..1f0317288 100644
--- a/java/src/com/android/inputmethod/latin/DictionaryFacilitator.java
+++ b/java/src/com/android/inputmethod/latin/DictionaryFacilitator.java
@@ -99,6 +99,30 @@ public class DictionaryFacilitator {
                     DICT_TYPES_ORDERED_TO_GET_SUGGESTIONS.length);
 
     /**
+     * Returns whether this facilitator is exactly for this list of locales.
+     * @param locales the list of locales to test against
+     * @return true if this facilitator handles exactly this list of locales, false otherwise
+     */
+    public boolean isForLocales(final Locale[] locales) {
+        if (locales.length != mDictionaryGroups.length) {
+            return false;
+        }
+        for (final Locale locale : locales) {
+            boolean found = false;
+            for (final DictionaryGroup group : mDictionaryGroups) {
+                if (locale.equals(group.mLocale)) {
+                    found = true;
+                    break;
+                }
+            }
+            if (!found) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    /**
      * A group of dictionaries that work together for a single language.
      */
     private static class DictionaryGroup {
@@ -199,6 +223,18 @@ public class DictionaryFacilitator {
         return mDictionaryGroups[0].mLocale;
     }
 
+    /**
+     * Returns the primary locale among all currently active locales. BE CAREFUL using this.
+     *
+     * DO NOT USE THIS just because it's convenient. Use it when it's correct, for example when
+     * choosing what dictionary to put a word in, or when changing the capitalization of a typed
+     * string.
+     * @return the primary active locale
+     */
+    public Locale getPrimaryLocale() {
+        return mDictionaryGroups[0].mLocale;
+    }
+
     private static ExpandableBinaryDictionary getSubDict(final String dictType,
             final Context context, final Locale locale, final File dictFile,
             final String dictNamePrefix) {