diff --git a/java/res/values-eu-rES/strings.xml b/java/res/values-eu-rES/strings.xml
index e9e9dde..898020d 100644
--- a/java/res/values-eu-rES/strings.xml
+++ b/java/res/values-eu-rES/strings.xml
@@ -29,7 +29,7 @@
     <string name="settings_screen_preferences" msgid="2696713156722014624">"Hobespenak"</string>
     <string name="settings_screen_accounts" msgid="2786418968536696670">"Kontuak eta pribatutasuna"</string>
     <string name="settings_screen_appearance" msgid="7358046399111611615">"Itxura eta diseinuak"</string>
-    <string name="settings_screen_gesture" msgid="8826372746901183556">"Keinu bidezko idazketa"</string>
+    <string name="settings_screen_gesture" msgid="8826372746901183556">"Idazketa lerrakorra"</string>
     <string name="settings_screen_correction" msgid="1616818407747682955">"Testu-zuzenketa"</string>
     <string name="settings_screen_advanced" msgid="7472408607625972994">"Ezarpen aurreratuak"</string>
     <string name="settings_screen_theme" msgid="2137262503543943871">"Gaia"</string>
@@ -78,7 +78,7 @@
     <string name="auto_correction_threshold_mode_very_aggressive" msgid="1853309024129480416">"Oso neurriz gainekoa"</string>
     <string name="bigram_prediction" msgid="1084449187723948550">"Hurrengo hitza iradokitzea"</string>
     <string name="bigram_prediction_summary" msgid="3896362682751109677">"Erabili aurreko hitza iradokizunak egiteko"</string>
-    <string name="gesture_input" msgid="826951152254563827">"Gaitu keinu bidezko idazketa"</string>
+    <string name="gesture_input" msgid="826951152254563827">"Gaitu idazketa lerrakorra"</string>
     <string name="gesture_input_summary" msgid="9180350639305731231">"Idatzi hitzak hizki batetik bestera hatza lerratuta"</string>
     <string name="gesture_preview_trail" msgid="3802333369335722221">"Erakutsi keinuaren bidea"</string>
     <string name="gesture_floating_preview_text" msgid="4443240334739381053">"Flotatze dinamikodun aurrebista"</string>
@@ -141,7 +141,7 @@
     <string name="prefs_enable_emoji_alt_physical_key_summary" msgid="5259484820941627827">"Teklatu fisikoko Alt tekla sakatuta emotikonoak agertzen dira"</string>
     <string name="button_default" msgid="3988017840431881491">"Lehenetsia"</string>
     <string name="setup_welcome_title" msgid="6112821709832031715">"Ongi etorri <xliff:g id="APPLICATION_NAME">%s</xliff:g> aplikaziora"</string>
-    <string name="setup_welcome_additional_description" msgid="8150252008545768953">"Keinu bidezko idazketarekin"</string>
+    <string name="setup_welcome_additional_description" msgid="8150252008545768953">"Idazketa lerrakorrarekin"</string>
     <string name="setup_start_action" msgid="8936036460897347708">"Lehen urratsak"</string>
     <string name="setup_next_action" msgid="371821437915144603">"Hurrengo urratsa"</string>
     <string name="setup_steps_title" msgid="6400373034871816182">"<xliff:g id="APPLICATION_NAME">%s</xliff:g> konfiguratzen"</string>
diff --git a/java/res/values-fa/strings.xml b/java/res/values-fa/strings.xml
index 730e462..dbe847b 100644
--- a/java/res/values-fa/strings.xml
+++ b/java/res/values-fa/strings.xml
@@ -168,7 +168,7 @@
     <string name="user_dictionaries" msgid="3582332055892252845">"فرهنگ‌های لغت کاربر"</string>
     <string name="default_user_dict_pref_name" msgid="1625055720489280530">"فرهنگ‌ لغت کاربر"</string>
     <string name="dictionary_available" msgid="4728975345815214218">"فرهنگ لغت موجود است"</string>
-    <string name="dictionary_downloading" msgid="2982650524622620983">"موارد در حال دانلود فعلی"</string>
+    <string name="dictionary_downloading" msgid="2982650524622620983">"موارد در حال بارگیری فعلی"</string>
     <string name="dictionary_installed" msgid="8081558343559342962">"نصب شده"</string>
     <string name="dictionary_disabled" msgid="8950383219564621762">"نصب‌شده، غیرفعال شد"</string>
     <string name="cannot_connect_to_dict_service" msgid="9216933695765732398">"مشکل اتصال به سرویس فرهنگ لغت"</string>
@@ -183,11 +183,11 @@
     <string name="install_dict" msgid="180852772562189365">"نصب"</string>
     <string name="cancel_download_dict" msgid="7843340278507019303">"لغو"</string>
     <string name="delete_dict" msgid="756853268088330054">"حذف"</string>
-    <string name="should_download_over_metered_prompt" msgid="1583881200688185508">"‏برای زبان انتخاب شده در دستگاه همراه شما فرهنگ لغتی در دسترس است.&lt;br/&gt; توصیه می‌کنیم برای بهبود بخشیدن به تجربه تایپ کردنتان، فرهنگ لغت <xliff:g id="LANGUAGE_NAME">%1$s</xliff:g> را &lt;b&gt;دانلود کنید&lt;/b&gt;.‏&lt;br/&gt; &lt;br/&gt; دانلود از طریق 3G ممکن است یک یا دو دقیقه طول بکشد. اگر &lt;b&gt;طرح داده نامحدود&lt;/b&gt; نداشته باشید، ممکن است هزینه‌هایی برای شما اعمال شوند.&lt;br/&gt; اگر مطمئن نیستید چه طرح داده‌ای دارید٬ توصیه می‌کنیم یک اتصال Wi-Fi پیدا کنید تا دانلود به‌طور خودکار شروع شود.&lt;br/&gt; &lt;br/&gt; نکته: با رفتن به بخش &lt;b&gt;زبان و ورودی&lt;/b&gt; در منوی &lt;b&gt;تنظیمات&lt;/b&gt; دستگاهتان، فرهنگ‌های لغت را دانلود یا حذف کنید."</string>
+    <string name="should_download_over_metered_prompt" msgid="1583881200688185508">"‏برای زبان انتخاب شده در دستگاه همراه شما فرهنگ لغتی در دسترس است.&lt;br/&gt; توصیه می‌کنیم برای بهبود بخشیدن به تجربه تایپ کردنتان، فرهنگ لغت <xliff:g id="LANGUAGE_NAME">%1$s</xliff:g> را &lt;b&gt;بارگیری کنید&lt;/b&gt;.‏&lt;br/&gt; &lt;br/&gt; بارگیری از طریق 3G ممکن است یک یا دو دقیقه طول بکشد. اگر &lt;b&gt;طرح داده نامحدود&lt;/b&gt; نداشته باشید، ممکن است هزینه‌هایی برای شما اعمال شوند.&lt;br/&gt; اگر مطمئن نیستید چه طرح داده‌ای دارید٬ توصیه می‌کنیم یک اتصال Wi-Fi پیدا کنید تا بارگیری به‌طور خودکار شروع شود.&lt;br/&gt; &lt;br/&gt; نکته: با رفتن به بخش &lt;b&gt;زبان و ورودی&lt;/b&gt; در منوی &lt;b&gt;تنظیمات&lt;/b&gt; دستگاهتان، فرهنگ‌های لغت را بارگیری یا حذف کنید."</string>
     <string name="download_over_metered" msgid="1643065851159409546">"هم‌اکنون بارگیری شود (<xliff:g id="SIZE_IN_MEGABYTES">%1$.1f</xliff:g> مگابایت)"</string>
-    <string name="do_not_download_over_metered" msgid="2176209579313941583">"‏دانلود ازطریق Wi-Fi"</string>
+    <string name="do_not_download_over_metered" msgid="2176209579313941583">"‏بارگیری ازطریق Wi-Fi"</string>
     <string name="dict_available_notification_title" msgid="4583842811218581658">"یک فرهنگ لغت برای <xliff:g id="LANGUAGE_NAME">%1$s</xliff:g> در دسترس است"</string>
-    <string name="dict_available_notification_description" msgid="1075194169443163487">"برای مرور و دانلود فشار دهید"</string>
+    <string name="dict_available_notification_description" msgid="1075194169443163487">"برای مرور و بارگیری فشار دهید"</string>
     <string name="toast_downloading_suggestions" msgid="6128155879830851739">"بارگیری پیشنهادات برای <xliff:g id="LANGUAGE_NAME">%1$s</xliff:g> به زودی شروع می‌شود."</string>
     <string name="version_text" msgid="2715354215568469385">"نسخه <xliff:g id="VERSION_NUMBER">%1$s</xliff:g>"</string>
     <string name="user_dict_settings_add_menu_title" msgid="1254195365689387076">"افرودن"</string>
diff --git a/java/res/values-sk/strings.xml b/java/res/values-sk/strings.xml
index 3a85a5f..b39977e 100644
--- a/java/res/values-sk/strings.xml
+++ b/java/res/values-sk/strings.xml
@@ -43,7 +43,7 @@
     <string name="clear_sync_data_confirmation" msgid="2811931135574727678">"Vaše synchronizované dáta budú odstránené z cloudu. Chcete pokračovať?"</string>
     <string name="clear_sync_data_ok" msgid="613104067705915132">"Odstrániť"</string>
     <string name="cloud_sync_cancel" msgid="5877481252150919037">"Zrušiť"</string>
-    <string name="cloud_sync_opt_in_text" msgid="9176039655776298248">"Váš osobný slovník sa synchronizuje a zálohuje na servery Google. S cieľom zlepšiť naše služby môžeme zhromažďovať štatistické informácie o frekvencii slov. Zhromažďovanie informácií a ich použitie bude v súlade s "<a href="https://www.google.com/policies/privacy">"pravidlami ochrany osobných údajov spoločnosti Google"</a>"."</string>
+    <string name="cloud_sync_opt_in_text" msgid="9176039655776298248">"Váš osobný slovník sa synchronizuje a zálohuje na servery Google. S cieľom zlepšiť naše služby môžeme zhromažďovať štatistické informácie o frekvencii slov. Zhromažďovanie informácií a ich použitie bude v súlade s "<a href="https://www.google.com/policies/privacy">"pravidlami ochrany súkromia spoločnosti Google"</a>"."</string>
     <string name="add_account_to_enable_sync" msgid="7836932571852055265">"Povoľte túto funkciu tak, že do zariadenia pridáte účet Google"</string>
     <string name="cloud_sync_summary_disabled_work_profile" msgid="1381770407303129164">"Synchronizácia je nedostupná pre zariadenia s účtami Google Apps pre firmy"</string>
     <string name="include_other_imes_in_language_switch_list" msgid="4533689960308565519">"Prepnúť na iné metódy vstupu"</string>
diff --git a/java/res/values-sw/strings-emoji-descriptions.xml b/java/res/values-sw/strings-emoji-descriptions.xml
index a348f0f..beb63b3 100644
--- a/java/res/values-sw/strings-emoji-descriptions.xml
+++ b/java/res/values-sw/strings-emoji-descriptions.xml
@@ -778,7 +778,7 @@
     <string name="spoken_emoji_1F4C8" msgid="8007686702282833600">"Emoji ya chati inayoonesha grafu ikipanda"</string>
     <string name="spoken_emoji_1F4C9" msgid="2271951411192893684">"Emoji ya chati inayoonesha grafu ikishuka"</string>
     <string name="spoken_emoji_1F4CA" msgid="3525692829622381444">"Emoji ya chati inayotumia miche kuwakilisha data zake"</string>
-    <string name="spoken_emoji_1F4CB" msgid="977639227554095521">"Emoji ya ubao maalum wenye kishikizio cha karatasi, aghalabu kwa urahisi wa kuandika au kusoma"</string>
+    <string name="spoken_emoji_1F4CB" msgid="977639227554095521">"Ubao wa kunakili"</string>
     <string name="spoken_emoji_1F4CC" msgid="156107396088741574">"Emoji ya kipini maalum kinachotumika kushikizia karatasi ukutani"</string>
     <string name="spoken_emoji_1F4CD" msgid="4266572175361190231">"Emoji ya kipini chenye kichwa cha mduara kinachotumika kushikizia karatasi kwenye kuta maalum zinazoweza kutumika na vipini hivyo"</string>
     <string name="spoken_emoji_1F4CE" msgid="6294288509864968290">"Emoji ya kibanio cha karatasi"</string>
diff --git a/java/src/com/android/inputmethod/keyboard/emoji/EmojiCategory.java b/java/src/com/android/inputmethod/keyboard/emoji/EmojiCategory.java
index 75b7962..b57e483 100644
--- a/java/src/com/android/inputmethod/keyboard/emoji/EmojiCategory.java
+++ b/java/src/com/android/inputmethod/keyboard/emoji/EmojiCategory.java
@@ -196,6 +196,8 @@
                     addShownCategoryId(EmojiCategory.ID_FLAGS);
                 }
             }
+        } else {
+            addShownCategoryId(EmojiCategory.ID_SYMBOLS);
         }
         addShownCategoryId(EmojiCategory.ID_EMOTICONS);
 
@@ -204,9 +206,14 @@
         recentsKbd.loadRecentKeys(mCategoryKeyboardMap.values());
 
         mCurrentCategoryId = Settings.readLastShownEmojiCategoryId(mPrefs, defaultCategoryId);
-        if (mCurrentCategoryId == EmojiCategory.ID_RECENTS &&
+        Log.i(TAG, "Last Emoji category id is " + mCurrentCategoryId);
+        if (!isShownCategoryId(mCurrentCategoryId)) {
+            Log.i(TAG, "Last emoji category " + mCurrentCategoryId +
+                    " is invalid, starting in " + defaultCategoryId);
+            mCurrentCategoryId = defaultCategoryId;
+        } else if (mCurrentCategoryId == EmojiCategory.ID_RECENTS &&
                 recentsKbd.getSortedKeys().isEmpty()) {
-            Log.i(TAG, "No recent emojis found, starting in category " + mCurrentCategoryId);
+            Log.i(TAG, "No recent emojis found, starting in category " + defaultCategoryId);
             mCurrentCategoryId = defaultCategoryId;
         }
     }
@@ -219,6 +226,15 @@
         mShownCategories.add(properties);
     }
 
+    private boolean isShownCategoryId(final int categoryId) {
+        for (final CategoryProperties prop : mShownCategories) {
+            if (prop.mCategoryId == categoryId) {
+                return true;
+            }
+        }
+        return false;
+    }
+
     public static String getCategoryName(final int categoryId, final int categoryPageId) {
         return sCategoryName[categoryId] + "-" + categoryPageId;
     }
diff --git a/java/src/com/android/inputmethod/latin/EmojiAltPhysicalKeyDetector.java b/java/src/com/android/inputmethod/latin/EmojiAltPhysicalKeyDetector.java
index 2529424..8924e0a 100644
--- a/java/src/com/android/inputmethod/latin/EmojiAltPhysicalKeyDetector.java
+++ b/java/src/com/android/inputmethod/latin/EmojiAltPhysicalKeyDetector.java
@@ -18,14 +18,15 @@
 
 import android.content.res.Resources;
 import android.util.Log;
+import android.util.Pair;
 import android.view.KeyEvent;
 
 import com.android.inputmethod.keyboard.KeyboardSwitcher;
 import com.android.inputmethod.latin.settings.Settings;
 
-import java.util.HashMap;
+import java.util.ArrayList;
 import java.util.HashSet;
-import java.util.Map;
+import java.util.List;
 import java.util.Set;
 
 import javax.annotation.Nonnull;
@@ -35,28 +36,155 @@
  */
 final class EmojiAltPhysicalKeyDetector {
     private static final String TAG = "EmojiAltPhysicalKeyDetector";
+    private static final boolean DEBUG = false;
 
-    private final Map<Integer, Integer> mEmojiSwitcherMap;
-    private final Map<Integer, Integer> mSymbolsShiftedSwitcherMap;
-    private final Map<Integer, Integer> mCombinedSwitcherMap;
+    private List<EmojiHotKeys> mHotKeysList;
 
-    // Set of keys codes that have been used as modifiers.
-    private Set<Integer> mActiveModifiers;
+    private static class HotKeySet extends HashSet<Pair<Integer, Integer>> { };
 
-    public EmojiAltPhysicalKeyDetector(@Nonnull final Resources resources) {
-        mEmojiSwitcherMap = parseSwitchDefinition(resources, R.array.keyboard_switcher_emoji);
-        mSymbolsShiftedSwitcherMap = parseSwitchDefinition(
-                resources, R.array.keyboard_switcher_symbols_shifted);
-        mCombinedSwitcherMap = new HashMap<>();
-        mCombinedSwitcherMap.putAll(mEmojiSwitcherMap);
-        mCombinedSwitcherMap.putAll(mSymbolsShiftedSwitcherMap);
-        mActiveModifiers = new HashSet<>();
+    private abstract class EmojiHotKeys {
+        private final String mName;
+        private final HotKeySet mKeySet;
+
+        boolean mCanFire;
+        int mMetaState;
+
+        public EmojiHotKeys(final String name, HotKeySet keySet) {
+            mName = name;
+            mKeySet = keySet;
+            mCanFire = false;
+        }
+
+        public void onKeyDown(@Nonnull final KeyEvent keyEvent) {
+            if (DEBUG) {
+                Log.d(TAG, "EmojiHotKeys.onKeyDown() - " + mName + " - considering " + keyEvent);
+            }
+
+            final Pair<Integer, Integer> key =
+                    Pair.create(keyEvent.getKeyCode(), keyEvent.getMetaState());
+            if (mKeySet.contains(key)) {
+                if (DEBUG) {
+                   Log.d(TAG, "EmojiHotKeys.onKeyDown() - " + mName + " - enabling action");
+                }
+                mCanFire = true;
+                mMetaState = keyEvent.getMetaState();
+            } else if (mCanFire) {
+                if (DEBUG) {
+                   Log.d(TAG, "EmojiHotKeys.onKeyDown() - " + mName + " - disabling action");
+                }
+                mCanFire = false;
+            }
+        }
+
+        public void onKeyUp(@Nonnull final KeyEvent keyEvent) {
+            if (DEBUG) {
+                Log.d(TAG, "EmojiHotKeys.onKeyUp() - " + mName + " - considering " + keyEvent);
+            }
+
+            final int keyCode = keyEvent.getKeyCode();
+            int metaState = keyEvent.getMetaState();
+            if (KeyEvent.isModifierKey(keyCode)) {
+                 // Try restoring meta stat in case the released key was a modifier.
+                 // I am sure one can come up with scenarios to break this, but it
+                 // seems to work well in practice.
+                 metaState |= mMetaState;
+            }
+
+            final Pair<Integer, Integer> key = Pair.create(keyCode, metaState);
+            if (mKeySet.contains(key)) {
+                if (mCanFire) {
+                    if (!keyEvent.isCanceled()) {
+                        if (DEBUG) {
+                            Log.d(TAG, "EmojiHotKeys.onKeyUp() - " + mName + " - firing action");
+                        }
+                        action();
+                    } else {
+                        // This key up event was a part of key combinations and
+                        // should be ignored.
+                        if (DEBUG) {
+                            Log.d(TAG, "EmojiHotKeys.onKeyUp() - " + mName + " - canceled, ignoring action");
+                        }
+                    }
+                    mCanFire = false;
+                }
+            }
+
+            if (mCanFire) {
+                if (DEBUG) {
+                    Log.d(TAG, "EmojiHotKeys.onKeyUp() - " + mName + " - disabling action");
+                }
+                mCanFire = false;
+            }
+        }
+
+        protected abstract void action();
     }
 
-    private static Map<Integer, Integer> parseSwitchDefinition(
-            @Nonnull final Resources resources,
-            final int resourceId) {
-        final Map<Integer, Integer> definition = new HashMap<>();
+    public EmojiAltPhysicalKeyDetector(@Nonnull final Resources resources) {
+        mHotKeysList = new ArrayList<EmojiHotKeys>();
+
+        final HotKeySet emojiSwitchSet = parseHotKeys(
+                resources, R.array.keyboard_switcher_emoji);
+        final EmojiHotKeys emojiHotKeys = new EmojiHotKeys("emoji", emojiSwitchSet) {
+            @Override
+            protected void action() {
+                final KeyboardSwitcher switcher = KeyboardSwitcher.getInstance();
+                switcher.onToggleKeyboard(KeyboardSwitcher.KeyboardSwitchState.EMOJI);
+            }
+        };
+        mHotKeysList.add(emojiHotKeys);
+
+        final HotKeySet symbolsSwitchSet = parseHotKeys(
+                resources, R.array.keyboard_switcher_symbols_shifted);
+        final EmojiHotKeys symbolsHotKeys = new EmojiHotKeys("symbols", symbolsSwitchSet) {
+            @Override
+            protected void action() {
+                final KeyboardSwitcher switcher = KeyboardSwitcher.getInstance();
+                switcher.onToggleKeyboard(KeyboardSwitcher.KeyboardSwitchState.SYMBOLS_SHIFTED);
+            }
+        };
+        mHotKeysList.add(symbolsHotKeys);
+    }
+
+    public void onKeyDown(@Nonnull final KeyEvent keyEvent) {
+        if (DEBUG) {
+            Log.d(TAG, "onKeyDown(): " + keyEvent);
+        }
+
+        if (shouldProcessEvent(keyEvent)) {
+            for (EmojiHotKeys hotKeys : mHotKeysList) {
+                hotKeys.onKeyDown(keyEvent);
+            }
+        }
+    }
+
+    public void onKeyUp(@Nonnull final KeyEvent keyEvent) {
+        if (DEBUG) {
+            Log.d(TAG, "onKeyUp(): " + keyEvent);
+        }
+
+        if (shouldProcessEvent(keyEvent)) {
+            for (EmojiHotKeys hotKeys : mHotKeysList) {
+                hotKeys.onKeyUp(keyEvent);
+            }
+        }
+    }
+
+    private static boolean shouldProcessEvent(@Nonnull final KeyEvent keyEvent) {
+        if (!Settings.getInstance().getCurrent().mEnableEmojiAltPhysicalKey) {
+            // The feature is disabled.
+            if (DEBUG) {
+                Log.d(TAG, "shouldProcessEvent(): Disabled");
+            }
+            return false;
+        }
+
+        return true;
+    }
+
+    private static HotKeySet parseHotKeys(
+            @Nonnull final Resources resources, final int resourceId) {
+        final HotKeySet keySet = new HotKeySet();
         final String name = resources.getResourceEntryName(resourceId);
         final String[] values = resources.getStringArray(resourceId);
         for (int i = 0; values != null && i < values.length; i++) {
@@ -65,91 +193,15 @@
                 Log.w(TAG, "Expected 2 integers in " + name + "[" + i + "] : " + values[i]);
             }
             try {
-                definition.put(Integer.parseInt(valuePair[0]), Integer.parseInt(valuePair[1]));
+                final Integer keyCode = Integer.parseInt(valuePair[0]);
+                final Integer metaState = Integer.parseInt(valuePair[1]);
+                final Pair<Integer, Integer> key = Pair.create(
+                        keyCode, KeyEvent.normalizeMetaState(metaState));
+                keySet.add(key);
             } catch (NumberFormatException e) {
                 Log.w(TAG, "Failed to parse " + name + "[" + i + "] : " + values[i], e);
             }
         }
-        return definition;
-    }
-
-    /**
-     * Determine whether an up key event came from a mapped modifier key.
-     *
-     * @param keyEvent an up key event.
-     */
-    public void onKeyUp(@Nonnull final KeyEvent keyEvent) {
-        Log.d(TAG, "onKeyUp() : " + keyEvent);
-        if (!Settings.getInstance().getCurrent().mEnableEmojiAltPhysicalKey) {
-            // The feature is disabled.
-            Log.d(TAG, "onKeyUp() : Disabled");
-            return;
-        }
-        if (keyEvent.isCanceled()) {
-            // This key up event was a part of key combinations and should be ignored.
-            Log.d(TAG, "onKeyUp() : Canceled");
-            return;
-        }
-        final Integer mappedModifier = getMappedModifier(keyEvent);
-        if (mappedModifier != null) {
-            // If the key was modified by a mapped key, then ignore the next time
-            // the same modifier key comes up.
-            Log.d(TAG, "onKeyUp() : Using Modifier: " + mappedModifier);
-            mActiveModifiers.add(mappedModifier);
-            return;
-        }
-        final int keyCode = keyEvent.getKeyCode();
-        if (mActiveModifiers.contains(keyCode)) {
-            // Used as a modifier, not a standalone key press.
-            Log.d(TAG, "onKeyUp() : Used as Modifier: " + keyCode);
-            mActiveModifiers.remove(keyCode);
-            return;
-        }
-        if (!isMappedKeyCode(keyEvent)) {
-            // Nothing special about this key.
-            Log.d(TAG, "onKeyUp() : Not Mapped: " + keyCode);
-            return;
-        }
-        final KeyboardSwitcher switcher = KeyboardSwitcher.getInstance();
-        if (mEmojiSwitcherMap.keySet().contains(keyCode)) {
-            switcher.onToggleKeyboard(KeyboardSwitcher.KeyboardSwitchState.EMOJI);
-        } else if (mSymbolsShiftedSwitcherMap.keySet().contains(keyCode)) {
-            switcher.onToggleKeyboard(KeyboardSwitcher.KeyboardSwitchState.SYMBOLS_SHIFTED);
-        } else {
-            Log.w(TAG, "Cannot toggle on keyCode: " + keyCode);
-        }
-    }
-
-    /**
-     * @param keyEvent pressed key event
-     * @return true iff the user pressed a mapped modifier key.
-     */
-    private boolean isMappedKeyCode(@Nonnull final KeyEvent keyEvent) {
-        return mCombinedSwitcherMap.get(keyEvent.getKeyCode()) != null;
-    }
-
-    /**
-     * @param keyEvent pressed key event
-     * @return the mapped modifier used with this key opress, if any.
-     */
-    private Integer getMappedModifier(@Nonnull final KeyEvent keyEvent) {
-        final int keyCode = keyEvent.getKeyCode();
-        final int metaState = keyEvent.getMetaState();
-        for (int mappedKeyCode : mCombinedSwitcherMap.keySet()) {
-            if (keyCode == mappedKeyCode) {
-                Log.d(TAG, "getMappedModifier() : KeyCode = MappedKeyCode = " + mappedKeyCode);
-                continue;
-            }
-            final Integer mappedMeta = mCombinedSwitcherMap.get(mappedKeyCode);
-            if (mappedMeta == null || mappedMeta.intValue() == -1) {
-                continue;
-            }
-            if ((metaState & mappedMeta) != 0) {
-                Log.d(TAG, "getMappedModifier() : MetaState(" + metaState
-                        + ") contains MappedMeta(" + mappedMeta + ")");
-                return mappedKeyCode;
-            }
-        }
-        return null;
+        return keySet;
     }
 }
diff --git a/java/src/com/android/inputmethod/latin/LatinIME.java b/java/src/com/android/inputmethod/latin/LatinIME.java
index f3cf6cd..55af62e 100644
--- a/java/src/com/android/inputmethod/latin/LatinIME.java
+++ b/java/src/com/android/inputmethod/latin/LatinIME.java
@@ -1658,6 +1658,11 @@
     // Hooks for hardware keyboard
     @Override
     public boolean onKeyDown(final int keyCode, final KeyEvent keyEvent) {
+        if (mEmojiAltPhysicalKeyDetector == null) {
+            mEmojiAltPhysicalKeyDetector = new EmojiAltPhysicalKeyDetector(
+                    getApplicationContext().getResources());
+        }
+        mEmojiAltPhysicalKeyDetector.onKeyDown(keyEvent);
         if (!ProductionFlags.IS_HARDWARE_KEYBOARD_SUPPORTED) {
             return super.onKeyDown(keyCode, keyEvent);
         }