Delete history on upgrade in LatinIME.

Bug 20733902.

Change-Id: Ibe27e6cafe4db87ba62d7df708229e0d8564ffa8

1 files changed, 18 insertions, 1 deletions

diff --git a/java/src/com/android/inputmethod/latin/SystemBroadcastReceiver.java b/java/src/com/android/inputmethod/latin/SystemBroadcastReceiver.java
index a093ec6db..26c5e0034 100644
--- a/java/src/com/android/inputmethod/latin/SystemBroadcastReceiver.java
+++ b/java/src/com/android/inputmethod/latin/SystemBroadcastReceiver.java
@@ -29,13 +29,14 @@ import android.util.Log;
 import android.view.inputmethod.InputMethodManager;
 import android.view.inputmethod.InputMethodSubtype;
 
-import com.android.inputmethod.dictionarypack.CommonPreferences;
 import com.android.inputmethod.dictionarypack.DictionaryPackConstants;
 import com.android.inputmethod.keyboard.KeyboardLayoutSet;
 import com.android.inputmethod.latin.settings.Settings;
 import com.android.inputmethod.latin.setup.SetupActivity;
 import com.android.inputmethod.latin.utils.UncachedInputMethodManagerUtils;
 
+import java.util.Locale;
+
 /**
  * This class detects the {@link Intent#ACTION_MY_PACKAGE_REPLACED} broadcast intent when this IME
  * package has been replaced by a newer version of the same package. This class also detects
@@ -76,6 +77,22 @@ public final class SystemBroadcastReceiver extends BroadcastReceiver {
             richImm.setAdditionalInputMethodSubtypes(additionalSubtypes);
             toggleAppIcon(context);
             downloadLatestDictionaries(context);
+            // TODO: This is only for dogfood builds. Remove this from the final release.
+            DictionaryFacilitator keyboardFacilitator =
+                    DictionaryFacilitatorProvider.getDictionaryFacilitator(false);
+            boolean historyCleared = keyboardFacilitator.clearUserHistoryDictionary(context);
+            Locale keyboardLocale = keyboardFacilitator.getLocale();
+            if (historyCleared && keyboardLocale != null) {
+                keyboardFacilitator.resetDictionaries(
+                        context,
+                        keyboardLocale,
+                        keyboardFacilitator.usesContacts(),
+                        true /* history */,
+                        true /* force */,
+                        keyboardFacilitator.getAccount(),
+                        "" /* prefix */,
+                        null /* listener */);
+            }
         } else if (Intent.ACTION_BOOT_COMPLETED.equals(intentAction)) {
             Log.i(TAG, "Boot has been completed");
             toggleAppIcon(context);