Add a Dictionary.isUserSpecific method.

As the name suggests, returns true if the Dictionary is of a type
that may use user-specific data, e.g., contacts.

Cherry-pick of I11e71286c7635f50ace156dcc5308dbe51268d4e

Change-Id: I08c3f22f0c34eaa71bbd06594314f3b411658c5c

1 files changed, 18 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/latin/Dictionary.java b/java/src/com/android/inputmethod/latin/Dictionary.java
index 2f79c7662..cad9ee7d8 100644
--- a/java/src/com/android/inputmethod/latin/Dictionary.java
+++ b/java/src/com/android/inputmethod/latin/Dictionary.java
@@ -22,6 +22,8 @@ import com.android.inputmethod.latin.settings.SettingsValuesForSuggestion;
 
 import java.util.ArrayList;
 import java.util.Locale;
+import java.util.Arrays;
+import java.util.HashSet;
 
 /**
  * Abstract base class for a dictionary that can do a fuzzy search for words based on a set of key
@@ -65,6 +67,14 @@ public abstract class Dictionary {
     // The locale for this dictionary. May be null if unknown (phony dictionary for example).
     public final Locale mLocale;
 
+    /**
+     * Set out of the dictionary types listed above that are based on data specific to the user,
+     * e.g., the user's contacts.
+     */
+    private static final HashSet<String> sUserSpecificDictionaryTypes =
+            new HashSet(Arrays.asList(new String[] { TYPE_USER_TYPED, TYPE_USER, TYPE_CONTACTS,
+                    TYPE_USER_HISTORY, TYPE_PERSONALIZATION, TYPE_CONTEXTUAL }));
+
     public Dictionary(final String dictType, final Locale locale) {
         mDictType = dictType;
         mLocale = locale;
@@ -159,6 +169,14 @@ public abstract class Dictionary {
     }
 
     /**
+     * Whether this dictionary is based on data specific to the user, e.g., the user's contacts.
+     * @return Whether this dictionary is specific to the user.
+     */
+    public boolean isUserSpecific() {
+        return sUserSpecificDictionaryTypes.contains(mDictType);
+    }
+
+    /**
      * Not a true dictionary. A placeholder used to indicate suggestions that don't come from any
      * real dictionary.
      */