Merge "Add CODE_POINT_BEGINNING_OF_SENTENCE in native code."
diff --git a/java/res/values-hi/strings-talkback-descriptions.xml b/java/res/values-hi/strings-talkback-descriptions.xml
index a1468da..df95119 100644
--- a/java/res/values-hi/strings-talkback-descriptions.xml
+++ b/java/res/values-hi/strings-talkback-descriptions.xml
@@ -20,25 +20,25 @@
 
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
-    <string name="spoken_use_headphones" msgid="4313642710742229868">"ज़ोर से बोली जाने वाली पासवर्ड कुंजियां सुनने के लिए हैडसेट प्‍लग करें."</string>
+    <string name="spoken_use_headphones" msgid="4313642710742229868">"जोर से बोली जाने वाली पासवर्ड कुंजियां सुनने के लिए हैडसेट प्‍लग करें."</string>
     <string name="spoken_current_text_is" msgid="4240549866156675799">"वर्तमान पाठ %s है"</string>
     <string name="spoken_no_text_entered" msgid="1711276837961785646">"कोई पाठ नहीं डाला गया"</string>
     <string name="spoken_auto_correct" msgid="8989324692167993804">"<xliff:g id="KEY_NAME">%1$s</xliff:g> <xliff:g id="ORIGINAL_WORD">%2$s</xliff:g> को सुधार कर <xliff:g id="CORRECTED_WORD">%3$s</xliff:g> करता है"</string>
     <string name="spoken_auto_correct_obscured" msgid="7769449372355268412">"<xliff:g id="KEY_NAME">%1$s</xliff:g> स्वत: सुधार करता है"</string>
     <string name="spoken_description_unknown" msgid="2382510329910793539">"कुंजी कोड %d"</string>
-    <string name="spoken_description_shift" msgid="7209798151676638728">"Shift"</string>
+    <string name="spoken_description_shift" msgid="7209798151676638728">"शिफ़्ट"</string>
     <string name="spoken_description_shift_shifted" msgid="1609924271343916689">"शिफ़्ट चालू (अक्षम करने के लिए टैप करें)"</string>
     <string name="spoken_description_caps_lock" msgid="5020582161133170892">"कैप्स लॉक चालू (अक्षम करने के लिए टैप करें)"</string>
-    <string name="spoken_description_delete" msgid="3878902286264983302">"Delete"</string>
+    <string name="spoken_description_delete" msgid="3878902286264983302">"डिलीट"</string>
     <string name="spoken_description_to_symbol" msgid="8244903740201126590">"प्रतीक"</string>
     <string name="spoken_description_to_alpha" msgid="4081215210530031950">"अक्षर"</string>
     <string name="spoken_description_to_numeric" msgid="4560261331530795682">"संख्‍याएं"</string>
     <string name="spoken_description_settings" msgid="7281251004003143204">"सेटिंग"</string>
-    <string name="spoken_description_tab" msgid="8210782459446866716">"Tab"</string>
+    <string name="spoken_description_tab" msgid="8210782459446866716">"टैब"</string>
     <string name="spoken_description_space" msgid="5908716896642059145">"स्पेस"</string>
     <string name="spoken_description_mic" msgid="6153138783813452464">"ध्‍वनि इनपुट"</string>
     <string name="spoken_description_emoji" msgid="7990051553008088470">"ईमोजी"</string>
-    <string name="spoken_description_return" msgid="3183692287397645708">"Return"</string>
+    <string name="spoken_description_return" msgid="3183692287397645708">"रिटर्न"</string>
     <string name="spoken_description_search" msgid="5099937658231911288">"खोजें"</string>
     <string name="spoken_description_dot" msgid="5644176501632325560">"डॉट"</string>
     <string name="spoken_description_language_switch" msgid="6818666779313544553">"भाषा स्विच करें"</string>
diff --git a/java/res/values-hy-rAM/strings-talkback-descriptions.xml b/java/res/values-hy-rAM/strings-talkback-descriptions.xml
index d8f7d27..e5b1ce6 100644
--- a/java/res/values-hy-rAM/strings-talkback-descriptions.xml
+++ b/java/res/values-hy-rAM/strings-talkback-descriptions.xml
@@ -23,7 +23,7 @@
     <string name="spoken_use_headphones" msgid="4313642710742229868">"Միացրեք ականջակալը՝ բարձրաձայն արտասանվող գաղտնաբառը լսելու համար:"</string>
     <string name="spoken_current_text_is" msgid="4240549866156675799">"Տվյալ տեքստը %s է"</string>
     <string name="spoken_no_text_entered" msgid="1711276837961785646">"Տեքստ չի մուտքագրվել"</string>
-    <string name="spoken_auto_correct" msgid="8989324692167993804">"<xliff:g id="KEY_NAME">%1$s</xliff:g>-ը շտկում է <xliff:g id="ORIGINAL_WORD">%2$s</xliff:g>-ը և դարձնում <xliff:g id="CORRECTED_WORD">%3$s</xliff:g>"</string>
+    <string name="spoken_auto_correct" msgid="8989324692167993804">"<xliff:g id="KEY_NAME">%1$s</xliff:g>-ը շտկում է <xliff:g id="ORIGINAL_WORD">%2$s</xliff:g>-ը՝ դարձնելով <xliff:g id="CORRECTED_WORD">%3$s</xliff:g>"</string>
     <string name="spoken_auto_correct_obscured" msgid="7769449372355268412">"<xliff:g id="KEY_NAME">%1$s</xliff:g> ստեղնը ինքնաշտկում է կատարում"</string>
     <string name="spoken_description_unknown" msgid="2382510329910793539">"Բանալու կոդը՝ %d"</string>
     <string name="spoken_description_shift" msgid="7209798151676638728">"Shift"</string>
@@ -34,8 +34,8 @@
     <string name="spoken_description_to_alpha" msgid="4081215210530031950">"Տառեր"</string>
     <string name="spoken_description_to_numeric" msgid="4560261331530795682">"Թվեր"</string>
     <string name="spoken_description_settings" msgid="7281251004003143204">"Կարգավորումներ"</string>
-    <string name="spoken_description_tab" msgid="8210782459446866716">"Թաբ"</string>
-    <string name="spoken_description_space" msgid="5908716896642059145">"Բացակ"</string>
+    <string name="spoken_description_tab" msgid="8210782459446866716">"Tab"</string>
+    <string name="spoken_description_space" msgid="5908716896642059145">"Բացատ"</string>
     <string name="spoken_description_mic" msgid="6153138783813452464">"Ձայնային մուտքագրում"</string>
     <string name="spoken_description_emoji" msgid="7990051553008088470">"Զմայլիկներ"</string>
     <string name="spoken_description_return" msgid="3183692287397645708">"Վերադառնալ"</string>
@@ -59,7 +59,7 @@
     <string name="keyboard_mode_im" msgid="3812086215529493501">"նամակագրություն"</string>
     <string name="keyboard_mode_number" msgid="5395042245837996809">"թվեր"</string>
     <string name="keyboard_mode_phone" msgid="2486230278064523665">"հեռախոսահամար"</string>
-    <string name="keyboard_mode_text" msgid="9138789594969187494">"տեքստային հաղորդագրություն"</string>
+    <string name="keyboard_mode_text" msgid="9138789594969187494">"տեքստ"</string>
     <string name="keyboard_mode_time" msgid="8558297845514402675">"ժամանակ"</string>
     <string name="keyboard_mode_url" msgid="8072011652949962550">"URL"</string>
     <string name="spoken_descrption_emoji_category_recents" msgid="4185344945205590692">"Վերջինները"</string>
diff --git a/java/res/values-zu/strings-talkback-descriptions.xml b/java/res/values-zu/strings-talkback-descriptions.xml
index d30ec8b..e01f734 100644
--- a/java/res/values-zu/strings-talkback-descriptions.xml
+++ b/java/res/values-zu/strings-talkback-descriptions.xml
@@ -26,12 +26,12 @@
     <string name="spoken_auto_correct" msgid="8989324692167993804">"I-<xliff:g id="KEY_NAME">%1$s</xliff:g> ilungisa i-<xliff:g id="ORIGINAL_WORD">%2$s</xliff:g> kube yi-<xliff:g id="CORRECTED_WORD">%3$s</xliff:g>"</string>
     <string name="spoken_auto_correct_obscured" msgid="7769449372355268412">"I-<xliff:g id="KEY_NAME">%1$s</xliff:g> yenza ukulungisa okuzenzakalelayo"</string>
     <string name="spoken_description_unknown" msgid="2382510329910793539">"Ikhodi yokhiye %d"</string>
-    <string name="spoken_description_shift" msgid="7209798151676638728">"I-Shift"</string>
+    <string name="spoken_description_shift" msgid="7209798151676638728">"U-Shift"</string>
     <string name="spoken_description_shift_shifted" msgid="1609924271343916689">"U-Shift uvuliwe (thepha ukuwuvimbela)"</string>
     <string name="spoken_description_caps_lock" msgid="5020582161133170892">"Ofeleba bavuliwe (thepha ukubavimbela)"</string>
     <string name="spoken_description_delete" msgid="3878902286264983302">"Susa"</string>
     <string name="spoken_description_to_symbol" msgid="8244903740201126590">"Amasimbuli"</string>
-    <string name="spoken_description_to_alpha" msgid="4081215210530031950">"Imbhalo"</string>
+    <string name="spoken_description_to_alpha" msgid="4081215210530031950">"Izinhlamvu"</string>
     <string name="spoken_description_to_numeric" msgid="4560261331530795682">"Izinombolo"</string>
     <string name="spoken_description_settings" msgid="7281251004003143204">"Izilungiselelo"</string>
     <string name="spoken_description_tab" msgid="8210782459446866716">"Ithebhu"</string>
@@ -65,7 +65,7 @@
     <string name="spoken_descrption_emoji_category_recents" msgid="4185344945205590692">"Okwakamuva"</string>
     <string name="spoken_descrption_emoji_category_people" msgid="8414196269847492817">"Abantu"</string>
     <string name="spoken_descrption_emoji_category_objects" msgid="6116297906606195278">"Izinto"</string>
-    <string name="spoken_descrption_emoji_category_nature" msgid="5018340512472354640">"Awendalo"</string>
+    <string name="spoken_descrption_emoji_category_nature" msgid="5018340512472354640">"Indalo"</string>
     <string name="spoken_descrption_emoji_category_places" msgid="1163315840948545317">"Izindawo"</string>
     <string name="spoken_descrption_emoji_category_symbols" msgid="474680659024880601">"Amasimbuli"</string>
     <string name="spoken_descrption_emoji_category_emoticons" msgid="456737544787823539">"Izithombe-mzwelo"</string>
diff --git a/java/res/values/strings-talkback-descriptions.xml b/java/res/values/strings-talkback-descriptions.xml
index 9c1e652..4ffca10 100644
--- a/java/res/values/strings-talkback-descriptions.xml
+++ b/java/res/values/strings-talkback-descriptions.xml
@@ -74,11 +74,10 @@
     <string name="spoken_description_shiftmode_on">Shift enabled</string>
     <!-- Spoken feedback after turning "Caps lock" mode on. -->
     <string name="spoken_description_shiftmode_locked">Caps lock enabled</string>
-    <!-- Spoken feedback after turning "Shift" mode off. -->
-    <string name="spoken_description_shiftmode_off">Shift disabled</string>
-
     <!-- Spoken feedback after changing to the symbols keyboard. -->
     <string name="spoken_description_mode_symbol">Symbols mode</string>
+    <!-- Spoken feedback after changing to the symbols shift keyboard. -->
+    <string name="spoken_description_mode_symbol_shift">Symbols shift mode</string>
     <!-- Spoken feedback after changing to the alphanumeric keyboard. -->
     <string name="spoken_description_mode_alpha">Letters mode</string>
     <!-- Spoken feedback after changing to the phone dialer keyboard. -->
diff --git a/java/src/com/android/inputmethod/accessibility/AccessibleKeyboardViewProxy.java b/java/src/com/android/inputmethod/accessibility/AccessibleKeyboardViewProxy.java
index 322127a..15f79f3 100644
--- a/java/src/com/android/inputmethod/accessibility/AccessibleKeyboardViewProxy.java
+++ b/java/src/com/android/inputmethod/accessibility/AccessibleKeyboardViewProxy.java
@@ -136,12 +136,19 @@
             return;
         }
         // Announce the language name only when the language is changed.
-        if (lastKeyboard == null || !lastKeyboard.mId.mSubtype.equals(keyboard.mId.mSubtype)) {
+        if (lastKeyboard == null || !keyboard.mId.mSubtype.equals(lastKeyboard.mId.mSubtype)) {
             announceKeyboardLanguage(keyboard);
+            return;
         }
         // Announce the mode only when the mode is changed.
-        if (lastKeyboardMode != keyboard.mId.mMode) {
+        if (keyboard.mId.mMode != lastKeyboardMode) {
             announceKeyboardMode(keyboard);
+            return;
+        }
+        // Announce the keyboard type only when the type is changed.
+        if (keyboard.mId.mElementId != lastKeyboard.mId.mElementId) {
+            announceKeyboardType(keyboard, lastKeyboard);
+            return;
         }
     }
 
@@ -174,9 +181,8 @@
      * @param keyboard The new keyboard.
      */
     private void announceKeyboardMode(final Keyboard keyboard) {
-        final int mode = keyboard.mId.mMode;
         final Context context = mView.getContext();
-        final int modeTextResId = KEYBOARD_MODE_RES_IDS.get(mode);
+        final int modeTextResId = KEYBOARD_MODE_RES_IDS.get(keyboard.mId.mMode);
         if (modeTextResId == 0) {
             return;
         }
@@ -186,6 +192,50 @@
     }
 
     /**
+     * Announces which type of keyboard is being displayed.
+     *
+     * @param keyboard The new keyboard.
+     * @param lastKeyboard The last keyboard.
+     */
+    private void announceKeyboardType(final Keyboard keyboard, final Keyboard lastKeyboard) {
+        final int lastElementId = lastKeyboard.mId.mElementId;
+        final int resId;
+        switch (keyboard.mId.mElementId) {
+        case KeyboardId.ELEMENT_ALPHABET_AUTOMATIC_SHIFTED:
+        case KeyboardId.ELEMENT_ALPHABET:
+            if (lastElementId == KeyboardId.ELEMENT_ALPHABET
+                    || lastElementId == KeyboardId.ELEMENT_ALPHABET_AUTOMATIC_SHIFTED) {
+                return;
+            }
+            resId = R.string.spoken_description_mode_alpha;
+            break;
+        case KeyboardId.ELEMENT_ALPHABET_MANUAL_SHIFTED:
+            resId = R.string.spoken_description_shiftmode_on;
+            break;
+        case KeyboardId.ELEMENT_ALPHABET_SHIFT_LOCK_SHIFTED:
+        case KeyboardId.ELEMENT_ALPHABET_SHIFT_LOCKED:
+            resId = R.string.spoken_description_shiftmode_locked;
+            break;
+        case KeyboardId.ELEMENT_SYMBOLS:
+            resId = R.string.spoken_description_mode_symbol;
+            break;
+        case KeyboardId.ELEMENT_SYMBOLS_SHIFTED:
+            resId = R.string.spoken_description_mode_symbol_shift;
+            break;
+        case KeyboardId.ELEMENT_PHONE:
+            resId = R.string.spoken_description_mode_phone;
+            break;
+        case KeyboardId.ELEMENT_PHONE_SYMBOLS:
+            resId = R.string.spoken_description_mode_phone_shift;
+            break;
+        default:
+            return;
+        }
+        final String text = mView.getContext().getString(resId);
+        sendWindowStateChanged(text);
+    }
+
+    /**
      * Announces that the keyboard has been hidden.
      */
     private void announceKeyboardHidden() {
@@ -301,7 +351,7 @@
     }
 
     /**
-     * Simulates a key press by injecting touch event into the keyboard view.
+     * Simulates a key press by injecting touch an event into the keyboard view.
      * This avoids the complexity of trackers and listeners within the keyboard.
      *
      * @param key The key to press.
@@ -318,7 +368,7 @@
     }
 
     /**
-     * Simulates a key release by injecting touch event into the keyboard view.
+     * Simulates a key release by injecting touch an event into the keyboard view.
      * This avoids the complexity of trackers and listeners within the keyboard.
      *
      * @param key The key to release.
@@ -383,72 +433,4 @@
         }
         return true;
     }
-
-    /**
-     * Notifies the user of changes in the keyboard shift state.
-     */
-    public void notifyShiftState() {
-        if (mView == null || mKeyboard == null) {
-            return;
-        }
-
-        final KeyboardId keyboardId = mKeyboard.mId;
-        final int elementId = keyboardId.mElementId;
-        final Context context = mView.getContext();
-        final CharSequence text;
-
-        switch (elementId) {
-        case KeyboardId.ELEMENT_ALPHABET_SHIFT_LOCK_SHIFTED:
-        case KeyboardId.ELEMENT_ALPHABET_SHIFT_LOCKED:
-            text = context.getText(R.string.spoken_description_shiftmode_locked);
-            break;
-        case KeyboardId.ELEMENT_ALPHABET_AUTOMATIC_SHIFTED:
-        case KeyboardId.ELEMENT_ALPHABET_MANUAL_SHIFTED:
-        case KeyboardId.ELEMENT_SYMBOLS_SHIFTED:
-            text = context.getText(R.string.spoken_description_shiftmode_on);
-            break;
-        default:
-            text = context.getText(R.string.spoken_description_shiftmode_off);
-        }
-        AccessibilityUtils.getInstance().announceForAccessibility(mView, text);
-    }
-
-    /**
-     * Notifies the user of changes in the keyboard symbols state.
-     */
-    public void notifySymbolsState() {
-        if (mView == null || mKeyboard == null) {
-            return;
-        }
-
-        final KeyboardId keyboardId = mKeyboard.mId;
-        final int elementId = keyboardId.mElementId;
-        final Context context = mView.getContext();
-        final int resId;
-
-        switch (elementId) {
-        case KeyboardId.ELEMENT_ALPHABET:
-        case KeyboardId.ELEMENT_ALPHABET_AUTOMATIC_SHIFTED:
-        case KeyboardId.ELEMENT_ALPHABET_MANUAL_SHIFTED:
-        case KeyboardId.ELEMENT_ALPHABET_SHIFT_LOCK_SHIFTED:
-        case KeyboardId.ELEMENT_ALPHABET_SHIFT_LOCKED:
-            resId = R.string.spoken_description_mode_alpha;
-            break;
-        case KeyboardId.ELEMENT_SYMBOLS:
-        case KeyboardId.ELEMENT_SYMBOLS_SHIFTED:
-            resId = R.string.spoken_description_mode_symbol;
-            break;
-        case KeyboardId.ELEMENT_PHONE:
-            resId = R.string.spoken_description_mode_phone;
-            break;
-        case KeyboardId.ELEMENT_PHONE_SYMBOLS:
-            resId = R.string.spoken_description_mode_phone_shift;
-            break;
-        default:
-            return;
-        }
-
-        final String text = context.getString(resId);
-        AccessibilityUtils.getInstance().announceForAccessibility(mView, text);
-    }
 }
diff --git a/java/src/com/android/inputmethod/compat/UserDictionaryCompatUtils.java b/java/src/com/android/inputmethod/compat/UserDictionaryCompatUtils.java
index a0d7641..6e32e74 100644
--- a/java/src/com/android/inputmethod/compat/UserDictionaryCompatUtils.java
+++ b/java/src/com/android/inputmethod/compat/UserDictionaryCompatUtils.java
@@ -29,8 +29,8 @@
             Context.class, String.class, Integer.TYPE, String.class, Locale.class);
 
     @SuppressWarnings("deprecation")
-    public static void addWord(final Context context, final String word, final int freq,
-            final String shortcut, final Locale locale) {
+    public static void addWord(final Context context, final String word,
+            final int freq, final String shortcut, final Locale locale) {
         if (hasNewerAddWord()) {
             CompatUtils.invoke(Words.class, null, METHOD_addWord, context, word, freq, shortcut,
                     locale);
diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java b/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
index 0235fde..0e667bc 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
@@ -123,7 +123,7 @@
         builder.setOptions(
                 mSubtypeSwitcher.isShortcutImeEnabled(),
                 settingsValues.mShowsVoiceInputKey,
-                mLatinIME.shouldSwitchToOtherInputMethods());
+                mLatinIME.shouldShowLanguageSwitchKey());
         mKeyboardLayoutSet = builder.build();
         mCurrentSettingsValues = settingsValues;
         try {
diff --git a/java/src/com/android/inputmethod/latin/DictionaryFacilitatorForSuggest.java b/java/src/com/android/inputmethod/latin/DictionaryFacilitatorForSuggest.java
index 5238395..b6fcbd1 100644
--- a/java/src/com/android/inputmethod/latin/DictionaryFacilitatorForSuggest.java
+++ b/java/src/com/android/inputmethod/latin/DictionaryFacilitatorForSuggest.java
@@ -49,6 +49,7 @@
     private static final int CAPITALIZED_FORM_MAX_PROBABILITY_FOR_INSERT = 140;
 
     private Dictionaries mDictionaries = new Dictionaries();
+    private boolean mIsUserDictEnabled = false;
     private volatile CountDownLatch mLatchForWaitingLoadingMainDictionary = new CountDownLatch(0);
     // To synchronize assigning mDictionaries to ensure closing dictionaries.
     private Object mLock = new Object();
@@ -71,24 +72,21 @@
                 CollectionUtils.newConcurrentHashMap();
         public final ConcurrentHashMap<String, ExpandableBinaryDictionary> mSubDictMap =
                 CollectionUtils.newConcurrentHashMap();
-        // TODO: Remove sub dictionary members and use mSubDictMap.
-        public final UserBinaryDictionary mUserDictionary;
 
         public Dictionaries() {
             mLocale = null;
-            mUserDictionary = null;
         }
 
         public Dictionaries(final Locale locale, final Dictionary mainDict,
-            final ExpandableBinaryDictionary contactsDict, final UserBinaryDictionary userDict,
+            final ExpandableBinaryDictionary contactsDict,
+            final ExpandableBinaryDictionary userDict,
             final ExpandableBinaryDictionary userHistoryDict,
             final ExpandableBinaryDictionary personalizationDict) {
             mLocale = locale;
             // Main dictionary can be asynchronously loaded.
             setMainDict(mainDict);
             setSubDict(Dictionary.TYPE_CONTACTS, contactsDict);
-            mUserDictionary = userDict;
-            setSubDict(Dictionary.TYPE_USER, mUserDictionary);
+            setSubDict(Dictionary.TYPE_USER, userDict);
             setSubDict(Dictionary.TYPE_USER_HISTORY, userHistoryDict);
             setSubDict(Dictionary.TYPE_PERSONALIZATION, personalizationDict);
         }
@@ -176,11 +174,12 @@
         }
 
         // Open or move user dictionary.
-        final UserBinaryDictionary newUserDictionary;
+        final ExpandableBinaryDictionary newUserDictionary;
         if (!closeUserDictionary && mDictionaries.hasDict(Dictionary.TYPE_USER)) {
-            newUserDictionary = mDictionaries.mUserDictionary;
+            newUserDictionary = mDictionaries.getSubDict(Dictionary.TYPE_USER);
         } else {
             newUserDictionary = new UserBinaryDictionary(context, newLocale);
+            mIsUserDictEnabled = UserBinaryDictionary.isEnabled(context);
         }
 
         // Open or move user history dictionary.
@@ -364,19 +363,15 @@
     }
 
     public boolean isUserDictionaryEnabled() {
-        final UserBinaryDictionary userDictionary = mDictionaries.mUserDictionary;
-        if (userDictionary == null) {
-            return false;
-        }
-        return userDictionary.mEnabled;
+        return mIsUserDictEnabled;
     }
 
-    public void addWordToUserDictionary(String word) {
-        final UserBinaryDictionary userDictionary = mDictionaries.mUserDictionary;
-        if (userDictionary == null) {
+    public void addWordToUserDictionary(final Context context, final String word) {
+        final Locale locale = getLocale();
+        if (locale == null) {
             return;
         }
-        userDictionary.addWordToUserDictionary(word);
+        UserBinaryDictionary.addWordToUserDictionary(context, locale, word);
     }
 
     public void addToUserHistory(final String suggestion, final boolean wasAutoCapitalized,
diff --git a/java/src/com/android/inputmethod/latin/ExpandableBinaryDictionary.java b/java/src/com/android/inputmethod/latin/ExpandableBinaryDictionary.java
index 08f3c63..550db4a 100644
--- a/java/src/com/android/inputmethod/latin/ExpandableBinaryDictionary.java
+++ b/java/src/com/android/inputmethod/latin/ExpandableBinaryDictionary.java
@@ -511,12 +511,12 @@
      */
     private final void asyncReloadDictionary() {
         if (mIsReloading.compareAndSet(false, true)) {
-            mNeedsToReload = false;
             asyncExecuteTaskWithWriteLock(new Runnable() {
                 @Override
                 public void run() {
                     try {
-                        if (!mDictFile.exists() || haveContentsChanged()) {
+                        // TODO: Quit checking contents in ExpandableBinaryDictionary.
+                        if (!mDictFile.exists() || (mNeedsToReload && haveContentsChanged())) {
                             // If the dictionary file does not exist or contents have been updated,
                             // generate a new one.
                             createNewDictionaryLocked();
@@ -524,6 +524,7 @@
                             // Otherwise, load the existing dictionary.
                             loadBinaryDictionaryLocked();
                         }
+                        mNeedsToReload = false;
                         if (mBinaryDictionary != null && !(isValidDictionaryLocked()
                                 // TODO: remove the check below
                                 && matchesExpectedBinaryDictFormatVersionForThisType(
diff --git a/java/src/com/android/inputmethod/latin/LatinIME.java b/java/src/com/android/inputmethod/latin/LatinIME.java
index f1b1b8d..e5dcb12 100644
--- a/java/src/com/android/inputmethod/latin/LatinIME.java
+++ b/java/src/com/android/inputmethod/latin/LatinIME.java
@@ -1179,7 +1179,8 @@
         } else {
             wordToEdit = word;
         }
-        mInputLogic.mSuggest.mDictionaryFacilitator.addWordToUserDictionary(wordToEdit);
+        mInputLogic.mSuggest.mDictionaryFacilitator.addWordToUserDictionary(
+                this /* context */, wordToEdit);
     }
 
     // Callback for the {@link SuggestionStripView}, to call when the important notice strip is
@@ -1596,18 +1597,6 @@
     public void onReleaseKey(final int primaryCode, final boolean withSliding) {
         mKeyboardSwitcher.onReleaseKey(primaryCode, withSliding, getCurrentAutoCapsState(),
                 getCurrentRecapitalizeState());
-
-        // If accessibility is on, ensure the user receives keyboard state updates.
-        if (AccessibilityUtils.getInstance().isTouchExplorationEnabled()) {
-            switch (primaryCode) {
-            case Constants.CODE_SHIFT:
-                AccessibleKeyboardViewProxy.getInstance().notifyShiftState();
-                break;
-            case Constants.CODE_SWITCH_ALPHA_SYMBOL:
-                AccessibleKeyboardViewProxy.getInstance().notifySymbolsState();
-                break;
-            }
-        }
     }
 
     private HardwareEventDecoder getHardwareKeyEventDecoder(final int deviceId) {
diff --git a/java/src/com/android/inputmethod/latin/RichInputMethodManager.java b/java/src/com/android/inputmethod/latin/RichInputMethodManager.java
index 2b0be54..64cc562 100644
--- a/java/src/com/android/inputmethod/latin/RichInputMethodManager.java
+++ b/java/src/com/android/inputmethod/latin/RichInputMethodManager.java
@@ -410,12 +410,21 @@
 
     public boolean shouldOfferSwitchingToNextInputMethod(final IBinder binder,
             boolean defaultValue) {
-        // Use the default value instead on Jelly Bean MR2 and previous where
-        // {@link InputMethodManager#shouldOfferSwitchingToNextInputMethod} isn't yet available
-        // and on KitKat where the API is still just a stub to return true always.
-        if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT) {
+        // Use the default value instead on Jelly Bean MR2 and previous, where
+        // {@link InputMethodManager#shouldOfferSwitchingToNextInputMethod} isn't yet available.
+        if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.JELLY_BEAN_MR2) {
             return defaultValue;
         }
+        // Use the default value instead on KitKat as well, where
+        // {@link InputMethodManager#shouldOfferSwitchingToNextInputMethod} is still just a stub to
+        // return true always.
+        if (Build.VERSION.SDK_INT == Build.VERSION_CODES.KITKAT) {
+            // Make sure this is actually KitKat.
+            // TODO: Consider to remove this check once the *next* version becomes available.
+            if (Build.VERSION.CODENAME.equals("REL")) {
+                return defaultValue;
+            }
+        }
         return mImmWrapper.shouldOfferSwitchingToNextInputMethod(binder);
     }
 }
diff --git a/java/src/com/android/inputmethod/latin/UserBinaryDictionary.java b/java/src/com/android/inputmethod/latin/UserBinaryDictionary.java
index 9d9ce01..b21f300 100644
--- a/java/src/com/android/inputmethod/latin/UserBinaryDictionary.java
+++ b/java/src/com/android/inputmethod/latin/UserBinaryDictionary.java
@@ -29,7 +29,6 @@
 import android.util.Log;
 
 import com.android.inputmethod.compat.UserDictionaryCompatUtils;
-import com.android.inputmethod.latin.utils.LocaleUtils;
 import com.android.inputmethod.latin.utils.SubtypeLocaleUtils;
 
 import java.io.File;
@@ -74,7 +73,6 @@
     private ContentObserver mObserver;
     final private String mLocale;
     final private boolean mAlsoUseMoreRestrictiveLocales;
-    final public boolean mEnabled;
 
     public UserBinaryDictionary(final Context context, final Locale locale) {
         this(context, locale, false /* alsoUseMoreRestrictiveLocales */, null /* dictFile */);
@@ -120,7 +118,6 @@
             }
         };
         cres.registerContentObserver(Words.CONTENT_URI, true, mObserver);
-        mEnabled = readIsEnabled();
         reloadDictionaryIfRequired();
     }
 
@@ -198,8 +195,8 @@
         }
     }
 
-    private boolean readIsEnabled() {
-        final ContentResolver cr = mContext.getContentResolver();
+    public static boolean isEnabled(final Context context) {
+        final ContentResolver cr = context.getContentResolver();
         final ContentProviderClient client = cr.acquireContentProviderClient(Words.CONTENT_URI);
         if (client != null) {
             client.release();
@@ -212,18 +209,15 @@
     /**
      * Adds a word to the user dictionary and makes it persistent.
      *
+     * @param context the context
+     * @param locale the locale
      * @param word the word to add. If the word is capitalized, then the dictionary will
      * recognize it as a capitalized word when searched.
      */
-    public synchronized void addWordToUserDictionary(final String word) {
+    public static void addWordToUserDictionary(final Context context, final Locale locale,
+            final String word) {
         // Update the user dictionary provider
-        final Locale locale;
-        if (USER_DICTIONARY_ALL_LANGUAGES == mLocale) {
-            locale = null;
-        } else {
-            locale = LocaleUtils.constructLocaleFromString(mLocale);
-        }
-        UserDictionaryCompatUtils.addWord(mContext, word,
+        UserDictionaryCompatUtils.addWord(context, word,
                 HISTORICAL_DEFAULT_USER_DICTIONARY_FREQUENCY, null, locale);
     }
 
diff --git a/java/src/com/android/inputmethod/latin/utils/PrioritizedSerialExecutor.java b/java/src/com/android/inputmethod/latin/utils/PrioritizedSerialExecutor.java
index a23b3ac..bf38abc 100644
--- a/java/src/com/android/inputmethod/latin/utils/PrioritizedSerialExecutor.java
+++ b/java/src/com/android/inputmethod/latin/utils/PrioritizedSerialExecutor.java
@@ -16,6 +16,8 @@
 
 package com.android.inputmethod.latin.utils;
 
+import com.android.inputmethod.annotations.UsedForTesting;
+
 import java.util.Queue;
 import java.util.concurrent.ArrayBlockingQueue;
 import java.util.concurrent.ConcurrentLinkedQueue;
@@ -74,6 +76,7 @@
      * Enqueues the given task into the prioritized task queue.
      * @param r the enqueued task
      */
+    @UsedForTesting
     public void executePrioritized(final Runnable r) {
         synchronized(mLock) {
             if (!mIsShutdown) {
diff --git a/native/jni/src/defines.h b/native/jni/src/defines.h
index 761063f..a80c975 100644
--- a/native/jni/src/defines.h
+++ b/native/jni/src/defines.h
@@ -293,13 +293,6 @@
 #define M_PI_F 3.14159265f
 #define MAX_PERCENTILE 100
 
-// Number of base-10 digits in the largest integer + 1 to leave room for a zero terminator.
-// As such, this is the maximum number of characters will be needed to represent an int as a
-// string, including the terminator; this is used as the size of a string buffer large enough to
-// hold any value that is intended to fit in an integer, e.g. in the code that reads the header
-// of the binary dictionary where a {key,value} string pair scheme is used.
-#define LARGEST_INT_DIGIT_COUNT 11
-
 #define NOT_A_CODE_POINT (-1)
 #define NOT_A_DISTANCE (-1)
 #define NOT_A_COORDINATE (-1)
diff --git a/native/jni/src/suggest/policyimpl/dictionary/header/header_read_write_utils.cpp b/native/jni/src/suggest/policyimpl/dictionary/header/header_read_write_utils.cpp
index d20accf..5608e27 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/header/header_read_write_utils.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/header/header_read_write_utils.cpp
@@ -26,6 +26,13 @@
 
 namespace latinime {
 
+// Number of base-10 digits in the largest integer + 1 to leave room for a zero terminator.
+// As such, this is the maximum number of characters will be needed to represent an int as a
+// string, including the terminator; this is used as the size of a string buffer large enough to
+// hold any value that is intended to fit in an integer, e.g. in the code that reads the header
+// of the binary dictionary where a {key,value} string pair scheme is used.
+const int HeaderReadWriteUtils::LARGEST_INT_DIGIT_COUNT = 11;
+
 const int HeaderReadWriteUtils::MAX_ATTRIBUTE_KEY_LENGTH = 256;
 const int HeaderReadWriteUtils::MAX_ATTRIBUTE_VALUE_LENGTH = 256;
 
@@ -154,8 +161,8 @@
 /* static */ void HeaderReadWriteUtils::setIntAttributeInner(AttributeMap *const headerAttributes,
         const AttributeMap::key_type *const key, const int value) {
     AttributeMap::mapped_type valueVector;
-    char charBuf[LARGEST_INT_DIGIT_COUNT + 1];
-    snprintf(charBuf, LARGEST_INT_DIGIT_COUNT + 1, "%d", value);
+    char charBuf[LARGEST_INT_DIGIT_COUNT];
+    snprintf(charBuf, sizeof(charBuf), "%d", value);
     insertCharactersIntoVector(charBuf, &valueVector);
     (*headerAttributes)[*key] = valueVector;
 }
diff --git a/native/jni/src/suggest/policyimpl/dictionary/header/header_read_write_utils.h b/native/jni/src/suggest/policyimpl/dictionary/header/header_read_write_utils.h
index a6b4c4e..9b90488 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/header/header_read_write_utils.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/header/header_read_write_utils.h
@@ -92,6 +92,7 @@
  private:
     DISALLOW_IMPLICIT_CONSTRUCTORS(HeaderReadWriteUtils);
 
+    static const int LARGEST_INT_DIGIT_COUNT;
     static const int MAX_ATTRIBUTE_KEY_LENGTH;
     static const int MAX_ATTRIBUTE_VALUE_LENGTH;