Merge remote-tracking branch 'goog/master' into mergescriptpackage

Conflicts: java/res/values-af/strings.xml java/res/values-cs/strings.xml java/res/values-et/strings.xml java/res/values-fi/strings.xml java/res/values-hi/strings.xml java/res/values-hr/strings.xml java/res/values-hu/strings.xml java/res/values-in/strings.xml java/res/values-ja/strings.xml java/res/values-ko/strings.xml java/res/values-lt/strings.xml java/res/values-lv/strings.xml java/res/values-ms/strings.xml java/res/values-pt/strings.xml java/res/values-ro/strings.xml java/res/values-ru/strings.xml java/res/values-sk/strings.xml java/res/values-sl/strings.xml java/res/values-sr/strings.xml java/res/values-sw/strings.xml java/res/values-tr/strings.xml java/res/values-vi/strings.xml java/res/values-zh-rCN/strings.xml java/res/values-zh-rTW/strings.xml Change-Id: Ib4141aca0b35148d62d22d4f32309f890c84303a
author: Satoshi Kataoka <satok@google.com> 2012-08-06 16:04:07 +0900
committer: Satoshi Kataoka <satok@google.com> 2012-08-06 16:04:07 +0900
commit: 44456dcbf23c29b54e9372d932b79805957724cb (patch)
tree: a8167c70e9d7017f212066cf2364d1ad5b09fdca /java/src
parent: 07e4f9eb530a795efd97986e28546c8c5e895c72 (diff)
parent: d299bde24b4afd3955fa65c7ab372807a336c6df (diff)
download: latinime-44456dcbf23c29b54e9372d932b79805957724cb.tar.gz
latinime-44456dcbf23c29b54e9372d932b79805957724cb.tar.xz
latinime-44456dcbf23c29b54e9372d932b79805957724cb.zip
35 files changed, 2279 insertions, 1326 deletions
diff --git a/java/src/com/android/inputmethod/accessibility/KeyCodeDescriptionMapper.java b/java/src/com/android/inputmethod/accessibility/KeyCodeDescriptionMapper.java
index 5ffd94a43..9b74070af 100644
--- a/java/src/com/android/inputmethod/accessibility/KeyCodeDescriptionMapper.java
+++ b/java/src/com/android/inputmethod/accessibility/KeyCodeDescriptionMapper.java
@@ -60,10 +60,8 @@ public class KeyCodeDescriptionMapper {
         // Manual label substitutions for key labels with no string resource
         mKeyLabelMap.put(":-)", R.string.spoken_description_smiley);
 
-        // Symbols that most TTS engines can't speak
-        mKeyCodeMap.put(' ', R.string.spoken_description_space);
-
         // Special non-character codes defined in Keyboard
+        mKeyCodeMap.put(Keyboard.CODE_SPACE, R.string.spoken_description_space);
         mKeyCodeMap.put(Keyboard.CODE_DELETE, R.string.spoken_description_delete);
         mKeyCodeMap.put(Keyboard.CODE_ENTER, R.string.spoken_description_return);
         mKeyCodeMap.put(Keyboard.CODE_SETTINGS, R.string.spoken_description_settings);
@@ -71,6 +69,9 @@ public class KeyCodeDescriptionMapper {
         mKeyCodeMap.put(Keyboard.CODE_SHORTCUT, R.string.spoken_description_mic);
         mKeyCodeMap.put(Keyboard.CODE_SWITCH_ALPHA_SYMBOL, R.string.spoken_description_to_symbol);
         mKeyCodeMap.put(Keyboard.CODE_TAB, R.string.spoken_description_tab);
+        mKeyCodeMap.put(Keyboard.CODE_LANGUAGE_SWITCH, R.string.spoken_description_language_switch);
+        mKeyCodeMap.put(Keyboard.CODE_ACTION_NEXT, R.string.spoken_description_action_next);
+        mKeyCodeMap.put(Keyboard.CODE_ACTION_PREVIOUS, R.string.spoken_description_action_previous);
     }
 
     /**
@@ -274,8 +275,7 @@ public class KeyCodeDescriptionMapper {
             return context.getString(OBSCURED_KEY_RES_ID);
         }
 
-        final int resId = mKeyCodeMap.get(code);
-        if (resId != 0) {
+        if (mKeyCodeMap.indexOfKey(code) >= 0) {
             return context.getString(mKeyCodeMap.get(code));
         } else if (isDefinedNonCtrl) {
             return Character.toString((char) code);
diff --git a/java/src/com/android/inputmethod/compat/InputMethodServiceCompatUtils.java b/java/src/com/android/inputmethod/compat/InputMethodServiceCompatUtils.java
new file mode 100644
index 000000000..0befa7a66
--- /dev/null
+++ b/java/src/com/android/inputmethod/compat/InputMethodServiceCompatUtils.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.compat;
+
+import android.inputmethodservice.InputMethodService;
+
+import java.lang.reflect.Method;
+
+public class InputMethodServiceCompatUtils {
+    private static final Method METHOD_enableHardwareAcceleration =
+            CompatUtils.getMethod(InputMethodService.class, "enableHardwareAcceleration");
+
+    private InputMethodServiceCompatUtils() {
+        // This utility class is not publicly instantiable.
+    }
+
+    public static boolean enableHardwareAcceleration(InputMethodService ims) {
+        return (Boolean)CompatUtils.invoke(ims, false, METHOD_enableHardwareAcceleration);
+    }
+}
diff --git a/java/src/com/android/inputmethod/keyboard/Key.java b/java/src/com/android/inputmethod/keyboard/Key.java
index e1e1ca9cf..178c9ff05 100644
--- a/java/src/com/android/inputmethod/keyboard/Key.java
+++ b/java/src/com/android/inputmethod/keyboard/Key.java
@@ -414,8 +414,14 @@ public class Key {
 
     @Override
     public String toString() {
-        return String.format("%s/%s %d,%d %dx%d %s/%s/%s",
-                Keyboard.printableCode(mCode), mLabel, mX, mY, mWidth, mHeight, mHintLabel,
+        final String label;
+        if (StringUtils.codePointCount(mLabel) == 1 && mLabel.codePointAt(0) == mCode) {
+            label = "";
+        } else {
+            label = "/" + mLabel;
+        }
+        return String.format("%s%s %d,%d %dx%d %s/%s/%s",
+                Keyboard.printableCode(mCode), label, mX, mY, mWidth, mHeight, mHintLabel,
                 KeyboardIconsSet.getIconName(mIconId), backgroundName(mBackgroundType));
     }
 
diff --git a/java/src/com/android/inputmethod/keyboard/KeyDetector.java b/java/src/com/android/inputmethod/keyboard/KeyDetector.java
index 9abc79d3c..97d88af4a 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyDetector.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyDetector.java
@@ -25,7 +25,6 @@ public class KeyDetector {
     private Keyboard mKeyboard;
     private int mCorrectionX;
     private int mCorrectionY;
-    private boolean mProximityCorrectOn;
 
     /**
      * This class handles key detection.
@@ -38,8 +37,9 @@ public class KeyDetector {
     }
 
     public void setKeyboard(Keyboard keyboard, float correctionX, float correctionY) {
-        if (keyboard == null)
+        if (keyboard == null) {
             throw new NullPointerException();
+        }
         mCorrectionX = (int)correctionX;
         mCorrectionY = (int)correctionY;
         mKeyboard = keyboard;
@@ -59,19 +59,9 @@ public class KeyDetector {
     }
 
     public Keyboard getKeyboard() {
-        if (mKeyboard == null)
-            throw new IllegalStateException("keyboard isn't set");
         return mKeyboard;
     }
 
-    public void setProximityCorrectionEnabled(boolean enabled) {
-        mProximityCorrectOn = enabled;
-    }
-
-    public boolean isProximityCorrectionEnabled() {
-        return mProximityCorrectOn;
-    }
-
     public boolean alwaysAllowsSlidingInput() {
         return false;
     }
diff --git a/java/src/com/android/inputmethod/keyboard/Keyboard.java b/java/src/com/android/inputmethod/keyboard/Keyboard.java
index f1a35b212..3abe890cb 100644
--- a/java/src/com/android/inputmethod/keyboard/Keyboard.java
+++ b/java/src/com/android/inputmethod/keyboard/Keyboard.java
@@ -604,9 +604,6 @@ public class Keyboard {
             }
 
             public float getKeyX(TypedArray keyAttr) {
-                final int widthType = Builder.getEnumValue(keyAttr,
-                        R.styleable.Keyboard_Key_keyWidth, KEYWIDTH_NOT_ENUM);
-
                 final int keyboardRightEdge = mParams.mOccupiedWidth
                         - mParams.mHorizontalEdgesPadding;
                 if (keyAttr.hasValue(R.styleable.Keyboard_Key_keyXPos)) {
diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardId.java b/java/src/com/android/inputmethod/keyboard/KeyboardId.java
index b54c72687..1e5277345 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardId.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardId.java
@@ -55,10 +55,15 @@ public class KeyboardId {
     public static final int ELEMENT_PHONE_SYMBOLS = 8;
     public static final int ELEMENT_NUMBER = 9;
 
+    public static final int FORM_FACTOR_PHONE = 0;
+    public static final int FORM_FACTOR_TABLET7 = 1;
+    public static final int FORM_FACTOR_TABLET10 = 2;
+
     private static final int IME_ACTION_CUSTOM_LABEL = EditorInfo.IME_MASK_ACTION + 1;
 
     public final InputMethodSubtype mSubtype;
     public final Locale mLocale;
+    public final int mDeviceFormFactor;
     public final int mOrientation;
     public final int mWidth;
     public final int mMode;
@@ -72,11 +77,12 @@ public class KeyboardId {
 
     private final int mHashCode;
 
-    public KeyboardId(int elementId, InputMethodSubtype subtype, int orientation, int width,
-            int mode, EditorInfo editorInfo, boolean clobberSettingsKey, boolean shortcutKeyEnabled,
-            boolean hasShortcutKey, boolean languageSwitchKeyEnabled) {
+    public KeyboardId(int elementId, InputMethodSubtype subtype, int deviceFormFactor,
+            int orientation, int width, int mode, EditorInfo editorInfo, boolean clobberSettingsKey,
+            boolean shortcutKeyEnabled, boolean hasShortcutKey, boolean languageSwitchKeyEnabled) {
         mSubtype = subtype;
         mLocale = SubtypeLocale.getSubtypeLocale(subtype);
+        mDeviceFormFactor = deviceFormFactor;
         mOrientation = orientation;
         mWidth = width;
         mMode = mode;
@@ -94,6 +100,7 @@ public class KeyboardId {
 
     private static int computeHashCode(KeyboardId id) {
         return Arrays.hashCode(new Object[] {
+                id.mDeviceFormFactor,
                 id.mOrientation,
                 id.mElementId,
                 id.mMode,
@@ -115,7 +122,8 @@ public class KeyboardId {
     private boolean equals(KeyboardId other) {
         if (other == this)
             return true;
-        return other.mOrientation == mOrientation
+        return other.mDeviceFormFactor == mDeviceFormFactor
+                && other.mOrientation == mOrientation
                 && other.mElementId == mElementId
                 && other.mMode == mMode
                 && other.mWidth == mWidth
@@ -184,11 +192,11 @@ public class KeyboardId {
 
     @Override
     public String toString() {
-        return String.format("[%s %s:%s %s%d %s %s %s%s%s%s%s%s%s%s]",
+        return String.format("[%s %s:%s %s-%s:%d %s %s %s%s%s%s%s%s%s%s]",
                 elementIdToName(mElementId),
                 mLocale,
                 mSubtype.getExtraValueOf(KEYBOARD_LAYOUT_SET),
-                (mOrientation == 1 ? "port" : "land"), mWidth,
+                deviceFormFactor(mDeviceFormFactor), (mOrientation == 1 ? "port" : "land"), mWidth,
                 modeName(mMode),
                 imeAction(),
                 (navigateNext() ? "navigateNext" : ""),
@@ -226,6 +234,15 @@ public class KeyboardId {
         }
     }
 
+    public static String deviceFormFactor(int devoceFormFactor) {
+        switch (devoceFormFactor) {
+        case FORM_FACTOR_PHONE: return "phone";
+        case FORM_FACTOR_TABLET7: return "tablet7";
+        case FORM_FACTOR_TABLET10: return "tablet10";
+        default: return null;
+        }
+    }
+
     public static String modeName(int mode) {
         switch (mode) {
         case MODE_TEXT: return "text";
diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardLayoutSet.java b/java/src/com/android/inputmethod/keyboard/KeyboardLayoutSet.java
index aab89a3e5..64b3f0952 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardLayoutSet.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardLayoutSet.java
@@ -115,6 +115,7 @@ public class KeyboardLayoutSet {
         boolean mNoSettingsKey;
         boolean mLanguageSwitchKeyEnabled;
         InputMethodSubtype mSubtype;
+        int mDeviceFormFactor;
         int mOrientation;
         int mWidth;
         // Sparse array of KeyboardLayoutSet element parameters indexed by element's id.
@@ -211,9 +212,10 @@ public class KeyboardLayoutSet {
         final boolean noLanguage = SubtypeLocale.isNoLanguage(params.mSubtype);
         final boolean voiceKeyEnabled = params.mVoiceKeyEnabled && !noLanguage;
         final boolean hasShortcutKey = voiceKeyEnabled && (isSymbols != params.mVoiceKeyOnMain);
-        return new KeyboardId(keyboardLayoutSetElementId, params.mSubtype, params.mOrientation,
-                params.mWidth, params.mMode, params.mEditorInfo, params.mNoSettingsKey,
-                voiceKeyEnabled, hasShortcutKey, params.mLanguageSwitchKeyEnabled);
+        return new KeyboardId(keyboardLayoutSetElementId, params.mSubtype, params.mDeviceFormFactor,
+                params.mOrientation, params.mWidth, params.mMode, params.mEditorInfo,
+                params.mNoSettingsKey, voiceKeyEnabled, hasShortcutKey,
+                params.mLanguageSwitchKeyEnabled);
     }
 
     public static class Builder {
@@ -239,9 +241,11 @@ public class KeyboardLayoutSet {
                     mPackageName, NO_SETTINGS_KEY, mEditorInfo);
         }
 
-        public Builder setScreenGeometry(int orientation, int widthPixels) {
-            mParams.mOrientation = orientation;
-            mParams.mWidth = widthPixels;
+        public Builder setScreenGeometry(int deviceFormFactor, int orientation, int widthPixels) {
+            final Params params = mParams;
+            params.mDeviceFormFactor = deviceFormFactor;
+            params.mOrientation = orientation;
+            params.mWidth = widthPixels;
             return this;
         }
 
diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java b/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
index d637ab5f1..dc84763c1 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
@@ -74,7 +74,6 @@ public class KeyboardSwitcher implements KeyboardState.SwitchActions {
     private MainKeyboardView mKeyboardView;
     private LatinIME mLatinIME;
     private Resources mResources;
-    private SettingsValues mCurrentSettingsValues;
 
     private KeyboardState mState;
 
@@ -136,11 +135,11 @@ public class KeyboardSwitcher implements KeyboardState.SwitchActions {
     }
 
     public void loadKeyboard(EditorInfo editorInfo, SettingsValues settingsValues) {
-        mCurrentSettingsValues = settingsValues;
         final KeyboardLayoutSet.Builder builder = new KeyboardLayoutSet.Builder(
                 mThemeContext, editorInfo);
-        builder.setScreenGeometry(mThemeContext.getResources().getConfiguration().orientation,
-                mThemeContext.getResources().getDisplayMetrics().widthPixels);
+        final Resources res = mThemeContext.getResources();
+        builder.setScreenGeometry(res.getInteger(R.integer.config_device_form_factor),
+                res.getConfiguration().orientation, res.getDisplayMetrics().widthPixels);
         builder.setSubtype(mSubtypeSwitcher.getCurrentSubtype());
         builder.setOptions(
                 settingsValues.isVoiceKeyEnabled(editorInfo),
@@ -171,20 +170,20 @@ public class KeyboardSwitcher implements KeyboardState.SwitchActions {
     }
 
     private void setKeyboard(final Keyboard keyboard) {
-        final Keyboard oldKeyboard = mKeyboardView.getKeyboard();
-        mKeyboardView.setGestureInputEnabled(mCurrentSettingsValues.mGestureInputEnabled);
-        mKeyboardView.setKeyboard(keyboard);
+        final MainKeyboardView keyboardView = mKeyboardView;
+        final Keyboard oldKeyboard = keyboardView.getKeyboard();
+        keyboardView.setKeyboard(keyboard);
         mCurrentInputView.setKeyboardGeometry(keyboard.mTopPadding);
-        mKeyboardView.setKeyPreviewPopupEnabled(
+        keyboardView.setKeyPreviewPopupEnabled(
                 SettingsValues.isKeyPreviewPopupEnabled(mPrefs, mResources),
                 SettingsValues.getKeyPreviewPopupDismissDelay(mPrefs, mResources));
-        mKeyboardView.updateAutoCorrectionState(mIsAutoCorrectionActive);
-        mKeyboardView.updateShortcutKey(mSubtypeSwitcher.isShortcutImeReady());
+        keyboardView.updateAutoCorrectionState(mIsAutoCorrectionActive);
+        keyboardView.updateShortcutKey(mSubtypeSwitcher.isShortcutImeReady());
         final boolean subtypeChanged = (oldKeyboard == null)
                 || !keyboard.mId.mLocale.equals(oldKeyboard.mId.mLocale);
         final boolean needsToDisplayLanguage = mSubtypeSwitcher.needsToDisplayLanguage(
                 keyboard.mId.mLocale);
-        mKeyboardView.startDisplayLanguageOnSpacebar(subtypeChanged, needsToDisplayLanguage,
+        keyboardView.startDisplayLanguageOnSpacebar(subtypeChanged, needsToDisplayLanguage,
                 ImfUtils.hasMultipleEnabledIMEsOrSubtypes(mLatinIME, true));
     }
 
@@ -350,7 +349,7 @@ public class KeyboardSwitcher implements KeyboardState.SwitchActions {
         return mKeyboardView;
     }
 
-    public View onCreateInputView() {
+    public View onCreateInputView(boolean isHardwareAcceleratedDrawingEnabled) {
         if (mKeyboardView != null) {
             mKeyboardView.closing();
         }
@@ -373,6 +372,10 @@ public class KeyboardSwitcher implements KeyboardState.SwitchActions {
         }
 
         mKeyboardView = (MainKeyboardView) mCurrentInputView.findViewById(R.id.keyboard_view);
+        if (isHardwareAcceleratedDrawingEnabled) {
+            mKeyboardView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
+            // TODO: Should use LAYER_TYPE_SOFTWARE when hardware acceleration is off?
+        }
         mKeyboardView.setKeyboardActionListener(mLatinIME);
         if (mForceNonDistinctMultitouch) {
             mKeyboardView.setDistinctMultitouch(false);
diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardView.java b/java/src/com/android/inputmethod/keyboard/KeyboardView.java
index f751fa53c..69e4d9805 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardView.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardView.java
@@ -25,7 +25,7 @@ import android.graphics.Paint;
 import android.graphics.Paint.Align;
 import android.graphics.PorterDuff;
 import android.graphics.Rect;
-import android.graphics.Region.Op;
+import android.graphics.Region;
 import android.graphics.Typeface;
 import android.graphics.drawable.Drawable;
 import android.os.Message;
@@ -35,9 +35,9 @@ import android.util.TypedValue;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.RelativeLayout;
 import android.widget.TextView;
 
+import com.android.inputmethod.keyboard.internal.PreviewPlacerView;
 import com.android.inputmethod.latin.Constants;
 import com.android.inputmethod.latin.LatinImeLogger;
 import com.android.inputmethod.latin.R;
@@ -97,9 +97,6 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
     // The maximum key label width in the proportion to the key width.
     private static final float MAX_LABEL_RATIO = 0.90f;
 
-    private final static int GESTURE_DRAWING_WIDTH = 5;
-    private final static int GESTURE_DRAWING_COLOR = 0xff33b5e5;
-
     // Main keyboard
     private Keyboard mKeyboard;
     protected final KeyDrawParams mKeyDrawParams;
@@ -109,10 +106,10 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
     protected final KeyPreviewDrawParams mKeyPreviewDrawParams;
     private boolean mShowKeyPreviewPopup = true;
     private int mDelayAfterPreview;
-    private ViewGroup mPreviewPlacer;
+    private final PreviewPlacerView mPreviewPlacerView;
 
-    /** True if the gesture input is enabled. */
-    protected boolean mGestureInputEnabled;
+    /** True if {@link KeyboardView} should handle gesture events. */
+    protected boolean mShouldHandleGesture;
 
     // Drawing
     /** True if the entire keyboard needs to be dimmed. */
@@ -123,16 +120,15 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
     private boolean mInvalidateAllKeys;
     /** The keys that should be drawn */
     private final HashSet<Key> mInvalidatedKeys = new HashSet<Key>();
-    /** The region of invalidated keys */
-    private final Rect mInvalidatedKeysRect = new Rect();
-    /** The region of invalidated gestures */
-    private final Rect mInvalidatedGesturesRect = new Rect();
+    /** The working rectangle variable */
+    private final Rect mWorkingRect = new Rect();
     /** The keyboard bitmap buffer for faster updates */
-    private Bitmap mBuffer;
+    /** The clip region to draw keys */
+    private final Region mClipRegion = new Region();
+    private Bitmap mOffscreenBuffer;
     /** The canvas for the above mutable keyboard bitmap */
-    private Canvas mCanvas;
+    private Canvas mOffscreenCanvas;
     private final Paint mPaint = new Paint();
-    private final Paint mGesturePaint = new Paint();
     private final Paint.FontMetrics mFontMetrics = new Paint.FontMetrics();
     // This sparse array caches key label text height in pixel indexed by key label text size.
     private static final SparseArray<Float> sTextHeightCache = new SparseArray<Float>();
@@ -261,10 +257,12 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
         }
 
         public void updateKeyHeight(int keyHeight) {
-            if (mKeyLetterRatio >= 0.0f)
+            if (mKeyLetterRatio >= 0.0f) {
                 mKeyLetterSize = (int)(keyHeight * mKeyLetterRatio);
-            if (mKeyLabelRatio >= 0.0f)
+            }
+            if (mKeyLabelRatio >= 0.0f) {
                 mKeyLabelSize = (int)(keyHeight * mKeyLabelRatio);
+            }
             mKeyLargeLabelSize = (int)(keyHeight * mKeyLargeLabelRatio);
             mKeyLargeLetterSize = (int)(keyHeight * mKeyLargeLetterRatio);
             mKeyHintLetterSize = (int)(keyHeight * mKeyHintLetterRatio);
@@ -346,13 +344,16 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
         }
 
         public void updateKeyHeight(int keyHeight) {
-            mPreviewTextSize = (int)(keyHeight * mPreviewTextRatio);
-            mKeyLetterSize = (int)(keyHeight * mKeyLetterRatio);
+            if (mPreviewTextRatio >= 0.0f) {
+                mPreviewTextSize = (int)(keyHeight * mPreviewTextRatio);
+            }
+            if (mKeyLetterRatio >= 0.0f) {
+                mKeyLetterSize = (int)(keyHeight * mKeyLetterRatio);
+            }
         }
 
         private static void setAlpha(Drawable drawable, int alpha) {
-            if (drawable == null)
-                return;
+            if (drawable == null) return;
             drawable.setAlpha(alpha);
         }
     }
@@ -377,18 +378,12 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
                 R.styleable.KeyboardView_verticalCorrection, 0);
         mMoreKeysLayout = a.getResourceId(R.styleable.KeyboardView_moreKeysLayout, 0);
         mBackgroundDimAlpha = a.getInt(R.styleable.KeyboardView_backgroundDimAlpha, 0);
+        mPreviewPlacerView = new PreviewPlacerView(context, a);
         a.recycle();
 
         mDelayAfterPreview = mKeyPreviewDrawParams.mLingerTimeout;
 
         mPaint.setAntiAlias(true);
-
-        // TODO: These paint parameters should be specified via attribute of the view and styleable.
-        mGesturePaint.setAntiAlias(true);
-        mGesturePaint.setStyle(Paint.Style.STROKE);
-        mGesturePaint.setStrokeJoin(Paint.Join.ROUND);
-        mGesturePaint.setColor(GESTURE_DRAWING_COLOR);
-        mGesturePaint.setStrokeWidth(GESTURE_DRAWING_WIDTH);
     }
 
     // Read fraction value in TypedArray as float.
@@ -443,8 +438,11 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
         return mShowKeyPreviewPopup;
     }
 
-    public void setGestureInputEnabled(boolean gestureInputEnabled) {
-        mGestureInputEnabled = gestureInputEnabled;
+    public void setGestureHandlingMode(boolean shouldHandleGesture,
+            boolean drawsGesturePreviewTrail, boolean drawsGestureFloatingPreviewText) {
+        mShouldHandleGesture = shouldHandleGesture;
+        mPreviewPlacerView.setGesturePreviewMode(
+                drawsGesturePreviewTrail, drawsGestureFloatingPreviewText);
     }
 
     @Override
@@ -461,65 +459,107 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
     @Override
     public void onDraw(Canvas canvas) {
         super.onDraw(canvas);
-        if (mBufferNeedsUpdate || mBuffer == null) {
+        if (canvas.isHardwareAccelerated()) {
+            onDrawKeyboard(canvas);
+            return;
+        }
+        if (mBufferNeedsUpdate || mOffscreenBuffer == null) {
             mBufferNeedsUpdate = false;
-            onBufferDraw();
+            if (maybeAllocateOffscreenBuffer()) {
+                mInvalidateAllKeys = true;
+                // TODO: Stop using the offscreen canvas even when in software rendering
+                if (mOffscreenCanvas != null) {
+                    mOffscreenCanvas.setBitmap(mOffscreenBuffer);
+                } else {
+                    mOffscreenCanvas = new Canvas(mOffscreenBuffer);
+                }
+            }
+            onDrawKeyboard(mOffscreenCanvas);
         }
-        canvas.drawBitmap(mBuffer, 0, 0, null);
+        canvas.drawBitmap(mOffscreenBuffer, 0, 0, null);
     }
 
-    private void onBufferDraw() {
+    private boolean maybeAllocateOffscreenBuffer() {
         final int width = getWidth();
         final int height = getHeight();
-        if (width == 0 || height == 0)
-            return;
-        if (mBuffer == null || mBuffer.getWidth() != width || mBuffer.getHeight() != height) {
-            if (mBuffer != null)
-                mBuffer.recycle();
-            mBuffer = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
-            mInvalidateAllKeys = true;
-            if (mCanvas != null) {
-                mCanvas.setBitmap(mBuffer);
-            } else {
-                mCanvas = new Canvas(mBuffer);
-            }
+        if (width == 0 || height == 0) {
+            return false;
         }
+        if (mOffscreenBuffer != null && mOffscreenBuffer.getWidth() == width
+                && mOffscreenBuffer.getHeight() == height) {
+            return false;
+        }
+        freeOffscreenBuffer();
+        mOffscreenBuffer = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
+        return true;
+    }
 
+    private void freeOffscreenBuffer() {
+        if (mOffscreenBuffer != null) {
+            mOffscreenBuffer.recycle();
+            mOffscreenBuffer = null;
+        }
+    }
+
+    private void onDrawKeyboard(final Canvas canvas) {
         if (mKeyboard == null) return;
 
-        final Canvas canvas = mCanvas;
+        final int width = getWidth();
+        final int height = getHeight();
         final Paint paint = mPaint;
         final KeyDrawParams params = mKeyDrawParams;
 
-        if (mInvalidateAllKeys || mInvalidatedKeys.isEmpty()) {
-            mInvalidatedKeysRect.set(0, 0, width, height);
-            canvas.clipRect(mInvalidatedKeysRect, Op.REPLACE);
-            canvas.drawColor(Color.BLACK, PorterDuff.Mode.CLEAR);
+        // Calculate clip region and set.
+        final boolean drawAllKeys = mInvalidateAllKeys || mInvalidatedKeys.isEmpty();
+        final boolean isHardwareAccelerated = canvas.isHardwareAccelerated();
+        // TODO: Confirm if it's really required to draw all keys when hardware acceleration is on.
+        if (drawAllKeys || isHardwareAccelerated) {
+            mClipRegion.set(0, 0, width, height);
+        } else {
+            mClipRegion.setEmpty();
+            for (final Key key : mInvalidatedKeys) {
+                if (mKeyboard.hasKey(key)) {
+                    final int x = key.mX + getPaddingLeft();
+                    final int y = key.mY + getPaddingTop();
+                    mWorkingRect.set(x, y, x + key.mWidth, y + key.mHeight);
+                    mClipRegion.union(mWorkingRect);
+                }
+            }
+        }
+        if (!isHardwareAccelerated) {
+            canvas.clipRegion(mClipRegion, Region.Op.REPLACE);
+        }
+
+        // Draw keyboard background.
+        canvas.drawColor(Color.BLACK, PorterDuff.Mode.CLEAR);
+        final Drawable background = getBackground();
+        if (background != null) {
+            background.draw(canvas);
+        }
+
+        // TODO: Confirm if it's really required to draw all keys when hardware acceleration is on.
+        if (drawAllKeys || isHardwareAccelerated) {
             // Draw all keys.
             for (final Key key : mKeyboard.mKeys) {
                 onDrawKey(key, canvas, paint, params);
             }
-            if (mNeedsToDimEntireKeyboard) {
-                drawDimRectangle(canvas, mInvalidatedKeysRect, mBackgroundDimAlpha, paint);
-            }
         } else {
             // Draw invalidated keys.
             for (final Key key : mInvalidatedKeys) {
-                if (!mKeyboard.hasKey(key)) {
-                    continue;
-                }
-                final int x = key.mX + getPaddingLeft();
-                final int y = key.mY + getPaddingTop();
-                mInvalidatedKeysRect.set(x, y, x + key.mWidth, y + key.mHeight);
-                canvas.clipRect(mInvalidatedKeysRect, Op.REPLACE);
-                canvas.drawColor(Color.BLACK, PorterDuff.Mode.CLEAR);
-                onDrawKey(key, canvas, paint, params);
-                if (mNeedsToDimEntireKeyboard) {
-                    drawDimRectangle(canvas, mInvalidatedKeysRect, mBackgroundDimAlpha, paint);
+                if (mKeyboard.hasKey(key)) {
+                    onDrawKey(key, canvas, paint, params);
                 }
             }
         }
 
+        // Overlay a dark rectangle to dim.
+        if (mNeedsToDimEntireKeyboard) {
+            paint.setColor(Color.BLACK);
+            paint.setAlpha(mBackgroundDimAlpha);
+            // Note: clipRegion() above is in effect if it was called.
+            canvas.drawRect(0, 0, width, height, paint);
+        }
+
         // ResearchLogging indicator.
         // TODO: Reimplement using a keyboard background image specific to the ResearchLogger,
         // and remove this call.
@@ -528,7 +568,6 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
         }
 
         mInvalidatedKeys.clear();
-        mInvalidatedKeysRect.setEmpty();
         mInvalidateAllKeys = false;
     }
 
@@ -853,13 +892,6 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
         canvas.translate(-x, -y);
     }
 
-    // Overlay a dark rectangle to dim.
-    private static void drawDimRectangle(Canvas canvas, Rect rect, int alpha, Paint paint) {
-        paint.setColor(Color.BLACK);
-        paint.setAlpha(alpha);
-        canvas.drawRect(rect, paint);
-    }
-
     public Paint newDefaultLabelPaint() {
         final Paint paint = new Paint();
         paint.setAntiAlias(true);
@@ -888,58 +920,33 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
         mDrawingHandler.dismissKeyPreview(mDelayAfterPreview, tracker);
     }
 
-    private static class PreviewView extends RelativeLayout {
-        KeyPreviewDrawParams mParams;
-        Paint mGesturePaint;
-
-        public PreviewView(Context context, KeyPreviewDrawParams params, Paint gesturePaint) {
-            super(context);
-            setWillNotDraw(false);
-            mParams = params;
-            mGesturePaint = gesturePaint;
-        }
-
-        @Override
-        public void onDraw(Canvas canvas) {
-            super.onDraw(canvas);
-            canvas.translate(mParams.mCoordinates[0], mParams.mCoordinates[1]);
-            PointerTracker.drawGestureTrailForAllPointerTrackers(canvas, mGesturePaint);
-            canvas.translate(-mParams.mCoordinates[0], -mParams.mCoordinates[1]);
-        }
-    }
-
     private void addKeyPreview(TextView keyPreview) {
-        if (mPreviewPlacer == null) {
-            createPreviewPlacer();
-        }
-        mPreviewPlacer.addView(
-                keyPreview, ViewLayoutUtils.newLayoutParam(mPreviewPlacer, 0, 0));
+        locatePreviewPlacerView();
+        mPreviewPlacerView.addView(
+                keyPreview, ViewLayoutUtils.newLayoutParam(mPreviewPlacerView, 0, 0));
     }
 
-    private void createPreviewPlacer() {
-        mPreviewPlacer = new PreviewView(getContext(), mKeyPreviewDrawParams, mGesturePaint);
+    private void locatePreviewPlacerView() {
+        if (mPreviewPlacerView.getParent() != null) {
+            return;
+        }
+        final int[] viewOrigin = new int[2];
+        getLocationInWindow(viewOrigin);
+        mPreviewPlacerView.setOrigin(viewOrigin[0], viewOrigin[1]);
         final ViewGroup windowContentView =
                 (ViewGroup)getRootView().findViewById(android.R.id.content);
-        windowContentView.addView(mPreviewPlacer);
+        windowContentView.addView(mPreviewPlacerView);
+    }
+
+    public void showGestureFloatingPreviewText(String gestureFloatingPreviewText) {
+        locatePreviewPlacerView();
+        mPreviewPlacerView.setGestureFloatingPreviewText(gestureFloatingPreviewText);
     }
 
     @Override
     public void showGestureTrail(PointerTracker tracker) {
-        if (mPreviewPlacer == null) {
-            createPreviewPlacer();
-        }
-        final Rect r = tracker.getBoundingBox();
-        if (!r.isEmpty()) {
-            // Invalidate the rectangular region encompassing the gesture. This is needed because
-            // past points along the gesture will fade and gradually disappear.
-            final KeyPreviewDrawParams params = mKeyPreviewDrawParams;
-            mInvalidatedGesturesRect.set(r);
-            mInvalidatedGesturesRect.offset(params.mCoordinates[0], params.mCoordinates[1]);
-            mInvalidatedGesturesRect.inset(-GESTURE_DRAWING_WIDTH, -GESTURE_DRAWING_WIDTH);
-            mPreviewPlacer.invalidate(mInvalidatedGesturesRect);
-        } else {
-            mPreviewPlacer.invalidate();
-        }
+        locatePreviewPlacerView();
+        mPreviewPlacerView.invalidatePointer(tracker);
     }
 
     @SuppressWarnings("deprecation") // setBackgroundDrawable is replaced by setBackground in API16
@@ -1055,9 +1062,9 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
         mInvalidatedKeys.add(key);
         final int x = key.mX + getPaddingLeft();
         final int y = key.mY + getPaddingTop();
-        mInvalidatedKeysRect.union(x, y, x + key.mWidth, y + key.mHeight);
+        mWorkingRect.set(x, y, x + key.mWidth, y + key.mHeight);
         mBufferNeedsUpdate = true;
-        invalidate(mInvalidatedKeysRect);
+        invalidate(mWorkingRect);
     }
 
     public void closing() {
@@ -1082,12 +1089,7 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
     protected void onDetachedFromWindow() {
         super.onDetachedFromWindow();
         closing();
-        if (mPreviewPlacer != null) {
-            mPreviewPlacer.removeAllViews();
-        }
-        if (mBuffer != null) {
-            mBuffer.recycle();
-            mBuffer = null;
-        }
+        mPreviewPlacerView.removeAllViews();
+        freeOffscreenBuffer();
     }
 }
diff --git a/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java b/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java
index 8c234e4e6..79459083f 100644
--- a/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java
+++ b/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java
@@ -43,6 +43,7 @@ import com.android.inputmethod.accessibility.AccessibilityUtils;
 import com.android.inputmethod.accessibility.AccessibleKeyboardViewProxy;
 import com.android.inputmethod.keyboard.PointerTracker.DrawingProxy;
 import com.android.inputmethod.keyboard.PointerTracker.TimerProxy;
+import com.android.inputmethod.keyboard.internal.SuddenJumpingTouchEventHandler;
 import com.android.inputmethod.latin.Constants;
 import com.android.inputmethod.latin.LatinIME;
 import com.android.inputmethod.latin.LatinImeLogger;
@@ -153,8 +154,7 @@ public class MainKeyboardView extends KeyboardView implements PointerTracker.Key
                 }
                 break;
             case MSG_TYPING_STATE_EXPIRED:
-                cancelAndStartAnimators(keyboardView.mAltCodeKeyWhileTypingFadeoutAnimator,
-                        keyboardView.mAltCodeKeyWhileTypingFadeinAnimator);
+                startWhileTypingFadeinAnimation(keyboardView);
                 break;
             }
         }
@@ -228,7 +228,7 @@ public class MainKeyboardView extends KeyboardView implements PointerTracker.Key
             removeMessages(MSG_LONGPRESS_KEY);
         }
 
-        public static void cancelAndStartAnimators(final ObjectAnimator animatorToCancel,
+        private static void cancelAndStartAnimators(final ObjectAnimator animatorToCancel,
                 final ObjectAnimator animatorToStart) {
             float startFraction = 0.0f;
             if (animatorToCancel.isStarted()) {
@@ -240,18 +240,39 @@ public class MainKeyboardView extends KeyboardView implements PointerTracker.Key
             animatorToStart.setCurrentPlayTime(startTime);
         }
 
+        private static void startWhileTypingFadeinAnimation(final MainKeyboardView keyboardView) {
+            cancelAndStartAnimators(keyboardView.mAltCodeKeyWhileTypingFadeoutAnimator,
+                    keyboardView.mAltCodeKeyWhileTypingFadeinAnimator);
+        }
+
+        private static void startWhileTypingFadeoutAnimation(final MainKeyboardView keyboardView) {
+            cancelAndStartAnimators(keyboardView.mAltCodeKeyWhileTypingFadeinAnimator,
+                    keyboardView.mAltCodeKeyWhileTypingFadeoutAnimator);
+        }
+
         @Override
-        public void startTypingStateTimer() {
+        public void startTypingStateTimer(Key typedKey) {
+            if (typedKey.isModifier() || typedKey.altCodeWhileTyping()) {
+                return;
+            }
+
             final boolean isTyping = isTypingState();
             removeMessages(MSG_TYPING_STATE_EXPIRED);
+            final MainKeyboardView keyboardView = getOuterInstance();
+
+            // When user hits the space or the enter key, just cancel the while-typing timer.
+            final int typedCode = typedKey.mCode;
+            if (typedCode == Keyboard.CODE_SPACE || typedCode == Keyboard.CODE_ENTER) {
+                startWhileTypingFadeinAnimation(keyboardView);
+                return;
+            }
+
             sendMessageDelayed(
                     obtainMessage(MSG_TYPING_STATE_EXPIRED), mParams.mIgnoreAltCodeKeyTimeout);
             if (isTyping) {
                 return;
             }
-            final MainKeyboardView keyboardView = getOuterInstance();
-            cancelAndStartAnimators(keyboardView.mAltCodeKeyWhileTypingFadeinAnimator,
-                    keyboardView.mAltCodeKeyWhileTypingFadeoutAnimator);
+            startWhileTypingFadeoutAnimation(keyboardView);
         }
 
         @Override
@@ -461,7 +482,7 @@ public class MainKeyboardView extends KeyboardView implements PointerTracker.Key
         super.setKeyboard(keyboard);
         mKeyDetector.setKeyboard(
                 keyboard, -getPaddingLeft(), -getPaddingTop() + mVerticalCorrection);
-        PointerTracker.setKeyDetector(mKeyDetector, mGestureInputEnabled);
+        PointerTracker.setKeyDetector(mKeyDetector, mShouldHandleGesture);
         mTouchScreenRegulator.setKeyboard(keyboard);
         mMoreKeysPanelCache.clear();
 
@@ -479,6 +500,14 @@ public class MainKeyboardView extends KeyboardView implements PointerTracker.Key
         AccessibleKeyboardViewProxy.getInstance().setKeyboard(keyboard);
     }
 
+    @Override
+    public void setGestureHandlingMode(final boolean shouldHandleGesture,
+            boolean drawsGesturePreviewTrail, boolean drawsGestureFloatingPreviewText) {
+        super.setGestureHandlingMode(shouldHandleGesture, drawsGesturePreviewTrail,
+                drawsGestureFloatingPreviewText);
+        PointerTracker.setKeyDetector(mKeyDetector, shouldHandleGesture);
+    }
+
     /**
      * Returns whether the device has distinct multi-touch panel.
      * @return true if the device has distinct multi-touch panel.
@@ -491,23 +520,6 @@ public class MainKeyboardView extends KeyboardView implements PointerTracker.Key
         mHasDistinctMultitouch = hasDistinctMultitouch;
     }
 
-    /**
-     * When enabled, calls to {@link KeyboardActionListener#onCodeInput} will include key
-     * codes for adjacent keys.  When disabled, only the primary key code will be
-     * reported.
-     * @param enabled whether or not the proximity correction is enabled
-     */
-    public void setProximityCorrectionEnabled(boolean enabled) {
-        mKeyDetector.setProximityCorrectionEnabled(enabled);
-    }
-
-    /**
-     * Returns true if proximity correction is enabled.
-     */
-    public boolean isProximityCorrectionEnabled() {
-        return mKeyDetector.isProximityCorrectionEnabled();
-    }
-
     @Override
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
diff --git a/java/src/com/android/inputmethod/keyboard/MoreKeysDetector.java b/java/src/com/android/inputmethod/keyboard/MoreKeysDetector.java
index cd4e3001e..a183546dd 100644
--- a/java/src/com/android/inputmethod/keyboard/MoreKeysDetector.java
+++ b/java/src/com/android/inputmethod/keyboard/MoreKeysDetector.java
@@ -39,7 +39,11 @@ public class MoreKeysDetector extends KeyDetector {
 
         Key nearestKey = null;
         int nearestDist = (y < 0) ? mSlideAllowanceSquareTop : mSlideAllowanceSquare;
-        for (final Key key : getKeyboard().mKeys) {
+        final Keyboard keyboard = getKeyboard();
+        if (keyboard == null) {
+            throw new NullPointerException("Keyboard isn't set");
+        }
+        for (final Key key : keyboard.mKeys) {
             final int dist = key.squaredDistanceToEdge(touchX, touchY);
             if (dist < nearestDist) {
                 nearestKey = key;
diff --git a/java/src/com/android/inputmethod/keyboard/PointerTracker.java b/java/src/com/android/inputmethod/keyboard/PointerTracker.java
index 4a5ecf986..e7e11f481 100644
--- a/java/src/com/android/inputmethod/keyboard/PointerTracker.java
+++ b/java/src/com/android/inputmethod/keyboard/PointerTracker.java
@@ -18,7 +18,6 @@ package com.android.inputmethod.keyboard;
 
 import android.graphics.Canvas;
 import android.graphics.Paint;
-import android.graphics.Rect;
 import android.os.SystemClock;
 import android.util.Log;
 import android.view.MotionEvent;
@@ -42,8 +41,8 @@ public class PointerTracker {
     private static final boolean DEBUG_LISTENER = false;
     private static boolean DEBUG_MODE = LatinImeLogger.sDBG;
 
-    // TODO: There should be an option to turn on/off the gesture input.
-    private static boolean sIsGestureEnabled = true;
+    /** True if {@link PointerTracker}s should handle gesture events. */
+    private static boolean sShouldHandleGesture = false;
 
     private static final int MIN_GESTURE_RECOGNITION_TIME = 100; // msec
 
@@ -83,7 +82,7 @@ public class PointerTracker {
     }
 
     public interface TimerProxy {
-        public void startTypingStateTimer();
+        public void startTypingStateTimer(Key typedKey);
         public boolean isTypingState();
         public void startKeyRepeatTimer(PointerTracker tracker);
         public void startLongPressTimer(PointerTracker tracker);
@@ -96,7 +95,7 @@ public class PointerTracker {
 
         public static class Adapter implements TimerProxy {
             @Override
-            public void startTypingStateTimer() {}
+            public void startTypingStateTimer(Key typedKey) {}
             @Override
             public boolean isTypingState() { return false; }
             @Override
@@ -199,7 +198,7 @@ public class PointerTracker {
         sNeedsPhantomSuddenMoveEventHack = needsPhantomSuddenMoveEventHack;
 
         setParameters(MainKeyboardView.PointerTrackerParams.DEFAULT);
-        updateGestureInputEnabledState(null, false /* gestureInputEnabled */);
+        updateGestureHandlingMode(null, false /* shouldHandleGesture */);
     }
 
     public static void setParameters(MainKeyboardView.PointerTrackerParams params) {
@@ -208,14 +207,13 @@ public class PointerTracker {
                 params.mTouchNoiseThresholdDistance * params.mTouchNoiseThresholdDistance);
     }
 
-    private static void updateGestureInputEnabledState(Keyboard keyboard,
-            boolean gestureInputEnabled) {
-        if (!gestureInputEnabled
+    private static void updateGestureHandlingMode(Keyboard keyboard, boolean shouldHandleGesture) {
+        if (!shouldHandleGesture
                 || AccessibilityUtils.getInstance().isTouchExplorationEnabled()
                 || (keyboard != null && keyboard.mId.passwordInput())) {
-            sIsGestureEnabled = false;
+            sShouldHandleGesture = false;
         } else {
-            sIsGestureEnabled = true;
+            sShouldHandleGesture = true;
         }
     }
 
@@ -243,7 +241,7 @@ public class PointerTracker {
         }
     }
 
-    public static void setKeyDetector(KeyDetector keyDetector, boolean gestureInputEnabledByUser) {
+    public static void setKeyDetector(KeyDetector keyDetector, boolean shouldHandleGesture) {
         final int trackersSize = sTrackers.size();
         for (int i = 0; i < trackersSize; ++i) {
             final PointerTracker tracker = sTrackers.get(i);
@@ -252,7 +250,7 @@ public class PointerTracker {
             tracker.mKeyboardLayoutHasBeenChanged = true;
         }
         final Keyboard keyboard = keyDetector.getKeyboard();
-        updateGestureInputEnabledState(keyboard, gestureInputEnabledByUser);
+        updateGestureHandlingMode(keyboard, shouldHandleGesture);
     }
 
     public static void dismissAllKeyPreviews() {
@@ -297,17 +295,6 @@ public class PointerTracker {
         sAggregratedPointers.reset();
     }
 
-    // TODO: To handle multi-touch gestures we may want to move this method to
-    // {@link PointerTrackerQueue}.
-    public static void drawGestureTrailForAllPointerTrackers(Canvas canvas, Paint paint) {
-        final int trackersSize = sTrackers.size();
-        for (int i = 0; i < trackersSize; ++i) {
-            final PointerTracker tracker = sTrackers.get(i);
-            tracker.mGestureStroke.drawGestureTrail(canvas, paint, tracker.getLastX(),
-                    tracker.getLastY());
-        }
-    }
-
     private PointerTracker(int id, KeyEventHandler handler) {
         if (handler == null)
             throw new NullPointerException();
@@ -342,9 +329,7 @@ public class PointerTracker {
             mListener.onPressKey(key.mCode);
             final boolean keyboardLayoutHasBeenChanged = mKeyboardLayoutHasBeenChanged;
             mKeyboardLayoutHasBeenChanged = false;
-            if (!key.altCodeWhileTyping() && !key.isModifier()) {
-                mTimerProxy.startTypingStateTimer();
-            }
+            mTimerProxy.startTypingStateTimer(key);
             return keyboardLayoutHasBeenChanged;
         }
         return false;
@@ -423,7 +408,7 @@ public class PointerTracker {
             if (mDrawingProxy != null) {
                 setReleasedKeyGraphics(mCurrentKey);
             }
-            mCurrentKey = newKey;
+            // Keep {@link #mCurrentKey} that comes from previous keyboard.
         }
         final int keyQuarterWidth = mKeyboard.mMostCommonKeyWidth / 4;
         mKeyQuarterWidthSquared = keyQuarterWidth * keyQuarterWidth;
@@ -525,6 +510,12 @@ public class PointerTracker {
         mDrawingProxy.invalidateKey(key);
     }
 
+    public void drawGestureTrail(Canvas canvas, Paint paint) {
+        if (mInGesture) {
+            mGestureStroke.drawGestureTrail(canvas, paint, mLastX, mLastY);
+        }
+    }
+
     public int getLastX() {
         return mLastX;
     }
@@ -536,9 +527,6 @@ public class PointerTracker {
     public long getDownTime() {
         return mDownTime;
     }
-    public Rect getBoundingBox() {
-        return mGestureStroke.getBoundingBox();
-    }
 
     private Key onDownKey(int x, int y, long eventTime) {
         mDownTime = eventTime;
@@ -669,8 +657,8 @@ public class PointerTracker {
         if (queue != null && queue.size() == 1) {
             mIsPossibleGesture = false;
             // A gesture should start only from the letter key.
-            if (sIsGestureEnabled && mIsAlphabetKeyboard && !mIsShowingMoreKeysPanel && key != null
-                    && Keyboard.isLetterCode(key.mCode)) {
+            if (sShouldHandleGesture && mIsAlphabetKeyboard && !mIsShowingMoreKeysPanel
+                    && key != null && Keyboard.isLetterCode(key.mCode)) {
                 mIsPossibleGesture = true;
                 // TODO: pointer times should be relative to first down even in entire batch input
                 // instead of resetting to 0 for each new down event.
@@ -714,7 +702,7 @@ public class PointerTracker {
     private void onGestureMoveEvent(PointerTracker tracker, int x, int y, long eventTime,
             boolean isHistorical, Key key) {
         final int gestureTime = (int)(eventTime - tracker.getDownTime());
-        if (sIsGestureEnabled && mIsPossibleGesture) {
+        if (sShouldHandleGesture && mIsPossibleGesture) {
             final GestureStroke stroke = mGestureStroke;
             stroke.addPoint(x, y, gestureTime, isHistorical);
             if (!mInGesture && stroke.isStartOfAGesture(gestureTime, sWasInGesture)) {
@@ -804,13 +792,16 @@ public class PointerTracker {
                     final int dx = x - lastX;
                     final int dy = y - lastY;
                     final int lastMoveSquared = dx * dx + dy * dy;
+                    // TODO: Should find a way to balance gesture detection and this hack.
                     if (sNeedsPhantomSuddenMoveEventHack
-                            && lastMoveSquared >= mKeyQuarterWidthSquared) {
+                            && lastMoveSquared >= mKeyQuarterWidthSquared
+                            && !mIsPossibleGesture) {
                         if (DEBUG_MODE) {
                             Log.w(TAG, String.format("onMoveEvent:"
                                     + " phantom sudden move event is translated to "
                                     + "up[%d,%d]/down[%d,%d] events", lastX, lastY, x, y));
                         }
+                        // TODO: This should be moved to outside of this nested if-clause?
                         if (ProductionFlag.IS_EXPERIMENTAL) {
                             ResearchLogger.pointerTracker_onMoveEvent(x, y, lastX, lastY);
                         }
@@ -826,7 +817,9 @@ public class PointerTracker {
                                 && !sPointerTrackerQueue.hasModifierKeyOlderThan(this)) {
                             onUpEventInternal(x, y, eventTime);
                         }
-                        mKeyAlreadyProcessed = true;
+                        if (!mIsPossibleGesture) {
+                            mKeyAlreadyProcessed = true;
+                        }
                         setReleasedKeyGraphics(oldKey);
                     }
                 }
@@ -842,7 +835,9 @@ public class PointerTracker {
                 if (mIsAllowedSlidingKeyInput) {
                     onMoveToNewKey(key, x, y);
                 } else {
-                    mKeyAlreadyProcessed = true;
+                    if (!mIsPossibleGesture) {
+                        mKeyAlreadyProcessed = true;
+                    }
                 }
             }
         }
@@ -881,6 +876,7 @@ public class PointerTracker {
     private void onUpEventInternal(int x, int y, long eventTime) {
         mTimerProxy.cancelKeyTimers();
         mIsInSlidingKeyInput = false;
+        mIsPossibleGesture = false;
         // Release the last pressed key.
         setReleasedKeyGraphics(mCurrentKey);
         if (mIsShowingMoreKeysPanel) {
@@ -958,9 +954,7 @@ public class PointerTracker {
     public void onRegisterKey(Key key) {
         if (key != null) {
             detectAndSendKey(key, key.mX, key.mY);
-            if (!key.altCodeWhileTyping() && !key.isModifier()) {
-                mTimerProxy.startTypingStateTimer();
-            }
+            mTimerProxy.startTypingStateTimer(key);
         }
     }
 
diff --git a/java/src/com/android/inputmethod/keyboard/internal/GestureStroke.java b/java/src/com/android/inputmethod/keyboard/internal/GestureStroke.java
index c16b70ef0..28d6c1d07 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/GestureStroke.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/GestureStroke.java
@@ -16,7 +16,6 @@ package com.android.inputmethod.keyboard.internal;
 
 import android.graphics.Canvas;
 import android.graphics.Paint;
-import android.graphics.Rect;
 import android.util.FloatMath;
 
 import com.android.inputmethod.latin.Constants;
@@ -41,7 +40,6 @@ public class GestureStroke {
     private int mMinGestureLength;
     private int mMinGestureLengthWhileInGesture;
     private int mMinGestureSampleLength;
-    private final Rect mDrawingRect = new Rect();
 
     // TODO: Move some of these to resource.
     private static final float MIN_GESTURE_LENGTH_RATIO_TO_KEY_WIDTH = 1.0f;
@@ -90,7 +88,6 @@ public class GestureStroke {
         mEventTimes.setLength(0);
         mXCoordinates.setLength(0);
         mYCoordinates.setLength(0);
-        mDrawingRect.setEmpty();
     }
 
     private void updateLastPoint(final int x, final int y, final int time) {
@@ -198,8 +195,4 @@ public class GestureStroke {
             }
         }
     }
-
-    public Rect getBoundingBox() {
-        return mDrawingRect;
-    }
 }
diff --git a/java/src/com/android/inputmethod/keyboard/internal/KeySpecParser.java b/java/src/com/android/inputmethod/keyboard/internal/KeySpecParser.java
index 53261205d..94a7b826f 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/KeySpecParser.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/KeySpecParser.java
@@ -84,6 +84,19 @@ public class KeySpecParser {
             }
             mIconId = getIconId(moreKeySpec);
         }
+
+        @Override
+        public String toString() {
+            final String label = (mIconId == KeyboardIconsSet.ICON_UNDEFINED ? mLabel
+                    : PREFIX_ICON + KeyboardIconsSet.getIconName(mIconId));
+            final String output = (mCode == Keyboard.CODE_OUTPUT_TEXT ? mOutputText
+                    : Keyboard.printableCode(mCode));
+            if (StringUtils.codePointCount(label) == 1 && label.codePointAt(0) == mCode) {
+                return output;
+            } else {
+                return label + "|" + output;
+            }
+        }
     }
 
     private KeySpecParser() {
diff --git a/java/src/com/android/inputmethod/keyboard/internal/KeyboardTextsSet.java b/java/src/com/android/inputmethod/keyboard/internal/KeyboardTextsSet.java
index d732fc061..bec0f1fef 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/KeyboardTextsSet.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/KeyboardTextsSet.java
@@ -131,101 +131,102 @@ public final class KeyboardTextsSet {
         /* 23 */ "more_keys_for_nordic_row2_10",
         /* 24 */ "more_keys_for_nordic_row2_11",
         /* 25 */ "keylabel_for_east_slavic_row1_9",
-        /* 26 */ "keylabel_for_east_slavic_row2_1",
-        /* 27 */ "keylabel_for_east_slavic_row3_5",
-        /* 28 */ "more_keys_for_cyrillic_u",
-        /* 29 */ "more_keys_for_cyrillic_ye",
-        /* 30 */ "more_keys_for_cyrillic_en",
-        /* 31 */ "more_keys_for_cyrillic_ha",
-        /* 32 */ "more_keys_for_east_slavic_row2_1",
-        /* 33 */ "more_keys_for_cyrillic_o",
-        /* 34 */ "more_keys_for_cyrillic_soft_sign",
-        /* 35 */ "keylabel_for_south_slavic_row1_6",
-        /* 36 */ "keylabel_for_south_slavic_row2_11",
-        /* 37 */ "keylabel_for_south_slavic_row3_1",
-        /* 38 */ "keylabel_for_south_slavic_row3_8",
-        /* 39 */ "more_keys_for_cyrillic_ie",
-        /* 40 */ "more_keys_for_cyrillic_i",
-        /* 41 */ "more_keys_for_single_quote",
-        /* 42 */ "more_keys_for_double_quote",
-        /* 43 */ "more_keys_for_tablet_double_quote",
-        /* 44 */ "more_keys_for_currency_dollar",
-        /* 45 */ "more_keys_for_currency_euro",
-        /* 46 */ "more_keys_for_currency_pound",
-        /* 47 */ "more_keys_for_currency_general",
-        /* 48 */ "more_keys_for_punctuation",
-        /* 49 */ "more_keys_for_star",
-        /* 50 */ "more_keys_for_bullet",
-        /* 51 */ "more_keys_for_plus",
-        /* 52 */ "more_keys_for_left_parenthesis",
-        /* 53 */ "more_keys_for_right_parenthesis",
-        /* 54 */ "more_keys_for_less_than",
-        /* 55 */ "more_keys_for_greater_than",
-        /* 56 */ "more_keys_for_arabic_diacritics",
-        /* 57 */ "keyhintlabel_for_arabic_diacritics",
-        /* 58 */ "keylabel_for_symbols_1",
-        /* 59 */ "keylabel_for_symbols_2",
-        /* 60 */ "keylabel_for_symbols_3",
-        /* 61 */ "keylabel_for_symbols_4",
-        /* 62 */ "keylabel_for_symbols_5",
-        /* 63 */ "keylabel_for_symbols_6",
-        /* 64 */ "keylabel_for_symbols_7",
-        /* 65 */ "keylabel_for_symbols_8",
-        /* 66 */ "keylabel_for_symbols_9",
-        /* 67 */ "keylabel_for_symbols_0",
-        /* 68 */ "additional_more_keys_for_symbols_1",
-        /* 69 */ "additional_more_keys_for_symbols_2",
-        /* 70 */ "additional_more_keys_for_symbols_3",
-        /* 71 */ "additional_more_keys_for_symbols_4",
-        /* 72 */ "additional_more_keys_for_symbols_5",
-        /* 73 */ "additional_more_keys_for_symbols_6",
-        /* 74 */ "additional_more_keys_for_symbols_7",
-        /* 75 */ "additional_more_keys_for_symbols_8",
-        /* 76 */ "additional_more_keys_for_symbols_9",
-        /* 77 */ "additional_more_keys_for_symbols_0",
-        /* 78 */ "more_keys_for_symbols_1",
-        /* 79 */ "more_keys_for_symbols_2",
-        /* 80 */ "more_keys_for_symbols_3",
-        /* 81 */ "more_keys_for_symbols_4",
-        /* 82 */ "more_keys_for_symbols_5",
-        /* 83 */ "more_keys_for_symbols_6",
-        /* 84 */ "more_keys_for_symbols_7",
-        /* 85 */ "more_keys_for_symbols_8",
-        /* 86 */ "more_keys_for_symbols_9",
-        /* 87 */ "more_keys_for_symbols_0",
-        /* 88 */ "keylabel_for_comma",
-        /* 89 */ "more_keys_for_comma",
-        /* 90 */ "keylabel_for_symbols_question",
-        /* 91 */ "keylabel_for_symbols_semicolon",
-        /* 92 */ "keylabel_for_symbols_percent",
-        /* 93 */ "more_keys_for_symbols_exclamation",
-        /* 94 */ "more_keys_for_symbols_question",
-        /* 95 */ "more_keys_for_symbols_semicolon",
-        /* 96 */ "more_keys_for_symbols_percent",
-        /* 97 */ "keylabel_for_tablet_comma",
-        /* 98 */ "keyhintlabel_for_tablet_comma",
-        /* 99 */ "more_keys_for_tablet_comma",
-        /* 100 */ "keyhintlabel_for_tablet_period",
-        /* 101 */ "more_keys_for_tablet_period",
-        /* 102 */ "keylabel_for_apostrophe",
-        /* 103 */ "keyhintlabel_for_apostrophe",
-        /* 104 */ "more_keys_for_apostrophe",
-        /* 105 */ "more_keys_for_am_pm",
-        /* 106 */ "settings_as_more_key",
-        /* 107 */ "shortcut_as_more_key",
-        /* 108 */ "action_next_as_more_key",
-        /* 109 */ "action_previous_as_more_key",
-        /* 110 */ "label_to_more_symbol_key",
-        /* 111 */ "label_to_more_symbol_for_tablet_key",
-        /* 112 */ "label_tab_key",
-        /* 113 */ "label_to_phone_numeric_key",
-        /* 114 */ "label_to_phone_symbols_key",
-        /* 115 */ "label_time_am",
-        /* 116 */ "label_time_pm",
-        /* 117 */ "label_to_symbol_key_pcqwerty",
-        /* 118 */ "keylabel_for_popular_domain",
-        /* 119 */ "more_keys_for_popular_domain",
-        /* 120 */ "more_keys_for_smiley",
+        /* 26 */ "keylabel_for_east_slavic_row1_12",
+        /* 27 */ "keylabel_for_east_slavic_row2_1",
+        /* 28 */ "keylabel_for_east_slavic_row2_11",
+        /* 29 */ "keylabel_for_east_slavic_row3_5",
+        /* 30 */ "more_keys_for_cyrillic_u",
+        /* 31 */ "more_keys_for_cyrillic_en",
+        /* 32 */ "more_keys_for_cyrillic_ghe",
+        /* 33 */ "more_keys_for_east_slavic_row2_1",
+        /* 34 */ "more_keys_for_cyrillic_o",
+        /* 35 */ "more_keys_for_cyrillic_soft_sign",
+        /* 36 */ "keylabel_for_south_slavic_row1_6",
+        /* 37 */ "keylabel_for_south_slavic_row2_11",
+        /* 38 */ "keylabel_for_south_slavic_row3_1",
+        /* 39 */ "keylabel_for_south_slavic_row3_8",
+        /* 40 */ "more_keys_for_cyrillic_ie",
+        /* 41 */ "more_keys_for_cyrillic_i",
+        /* 42 */ "more_keys_for_single_quote",
+        /* 43 */ "more_keys_for_double_quote",
+        /* 44 */ "more_keys_for_tablet_double_quote",
+        /* 45 */ "more_keys_for_currency_dollar",
+        /* 46 */ "more_keys_for_currency_euro",
+        /* 47 */ "more_keys_for_currency_pound",
+        /* 48 */ "more_keys_for_currency_general",
+        /* 49 */ "more_keys_for_punctuation",
+        /* 50 */ "more_keys_for_star",
+        /* 51 */ "more_keys_for_bullet",
+        /* 52 */ "more_keys_for_plus",
+        /* 53 */ "more_keys_for_left_parenthesis",
+        /* 54 */ "more_keys_for_right_parenthesis",
+        /* 55 */ "more_keys_for_less_than",
+        /* 56 */ "more_keys_for_greater_than",
+        /* 57 */ "more_keys_for_arabic_diacritics",
+        /* 58 */ "keyhintlabel_for_arabic_diacritics",
+        /* 59 */ "keylabel_for_symbols_1",
+        /* 60 */ "keylabel_for_symbols_2",
+        /* 61 */ "keylabel_for_symbols_3",
+        /* 62 */ "keylabel_for_symbols_4",
+        /* 63 */ "keylabel_for_symbols_5",
+        /* 64 */ "keylabel_for_symbols_6",
+        /* 65 */ "keylabel_for_symbols_7",
+        /* 66 */ "keylabel_for_symbols_8",
+        /* 67 */ "keylabel_for_symbols_9",
+        /* 68 */ "keylabel_for_symbols_0",
+        /* 69 */ "additional_more_keys_for_symbols_1",
+        /* 70 */ "additional_more_keys_for_symbols_2",
+        /* 71 */ "additional_more_keys_for_symbols_3",
+        /* 72 */ "additional_more_keys_for_symbols_4",
+        /* 73 */ "additional_more_keys_for_symbols_5",
+        /* 74 */ "additional_more_keys_for_symbols_6",
+        /* 75 */ "additional_more_keys_for_symbols_7",
+        /* 76 */ "additional_more_keys_for_symbols_8",
+        /* 77 */ "additional_more_keys_for_symbols_9",
+        /* 78 */ "additional_more_keys_for_symbols_0",
+        /* 79 */ "more_keys_for_symbols_1",
+        /* 80 */ "more_keys_for_symbols_2",
+        /* 81 */ "more_keys_for_symbols_3",
+        /* 82 */ "more_keys_for_symbols_4",
+        /* 83 */ "more_keys_for_symbols_5",
+        /* 84 */ "more_keys_for_symbols_6",
+        /* 85 */ "more_keys_for_symbols_7",
+        /* 86 */ "more_keys_for_symbols_8",
+        /* 87 */ "more_keys_for_symbols_9",
+        /* 88 */ "more_keys_for_symbols_0",
+        /* 89 */ "keylabel_for_comma",
+        /* 90 */ "more_keys_for_comma",
+        /* 91 */ "keylabel_for_symbols_question",
+        /* 92 */ "keylabel_for_symbols_semicolon",
+        /* 93 */ "keylabel_for_symbols_percent",
+        /* 94 */ "more_keys_for_symbols_exclamation",
+        /* 95 */ "more_keys_for_symbols_question",
+        /* 96 */ "more_keys_for_symbols_semicolon",
+        /* 97 */ "more_keys_for_symbols_percent",
+        /* 98 */ "keylabel_for_tablet_comma",
+        /* 99 */ "keyhintlabel_for_tablet_comma",
+        /* 100 */ "more_keys_for_tablet_comma",
+        /* 101 */ "keyhintlabel_for_tablet_period",
+        /* 102 */ "more_keys_for_tablet_period",
+        /* 103 */ "keylabel_for_apostrophe",
+        /* 104 */ "keyhintlabel_for_apostrophe",
+        /* 105 */ "more_keys_for_apostrophe",
+        /* 106 */ "more_keys_for_am_pm",
+        /* 107 */ "settings_as_more_key",
+        /* 108 */ "shortcut_as_more_key",
+        /* 109 */ "action_next_as_more_key",
+        /* 110 */ "action_previous_as_more_key",
+        /* 111 */ "label_to_more_symbol_key",
+        /* 112 */ "label_to_more_symbol_for_tablet_key",
+        /* 113 */ "label_tab_key",
+        /* 114 */ "label_to_phone_numeric_key",
+        /* 115 */ "label_to_phone_symbols_key",
+        /* 116 */ "label_time_am",
+        /* 117 */ "label_time_pm",
+        /* 118 */ "label_to_symbol_key_pcqwerty",
+        /* 119 */ "keylabel_for_popular_domain",
+        /* 120 */ "more_keys_for_popular_domain",
+        /* 121 */ "more_keys_for_smiley",
     };
 
     private static final String EMPTY = "";
@@ -236,41 +237,41 @@ public final class KeyboardTextsSet {
         EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
         EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
         EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
-        EMPTY, EMPTY,
-        /* ~40 */
-        /* 41 */ "!fixedColumnOrder!4,\u2018,\u2019,\u201A,\u201B",
+        EMPTY, EMPTY, EMPTY,
+        /* ~41 */
+        /* 42 */ "!fixedColumnOrder!4,\u2018,\u2019,\u201A,\u201B",
         // TODO: Neither DroidSans nor Roboto have the glyph for U+201F DOUBLE HIGH-REVERSED-9 QUOTATION MARK.
         // <string name="more_keys_for_double_quote">!fixedColumnOrder!6,&#x201C;,&#x201D;,&#x201E;,&#x201F;,&#x00AB;,&#x00BB;</string>
-        /* 42 */ "!fixedColumnOrder!4,\u201C,\u201D,\u00AB,\u00BB",
+        /* 43 */ "!fixedColumnOrder!4,\u201C,\u201D,\u00AB,\u00BB",
         // TODO: Neither DroidSans nor Roboto have the glyph for U+201F DOUBLE HIGH-REVERSED-9 QUOTATION MARK.
         // <string name="more_keys_for_tablet_double_quote">!fixedColumnOrder!6,&#x201C;,&#x201D;,&#x201E;,&#x201F;,&#x00AB;,&#x00BB;,&#x2018;,&#x2019;,&#x201A;,&#x201B;</string>
-        /* 43 */ "!fixedColumnOrder!4,\u201C,\u201D,\u00AB,\u00BB,\u2018,\u2019,\u201A,\u201B",
+        /* 44 */ "!fixedColumnOrder!4,\u201C,\u201D,\u00AB,\u00BB,\u2018,\u2019,\u201A,\u201B",
         // U+00A2: "¢" CENT SIGN
         // U+00A3: "£" POUND SIGN
         // U+20AC: "€" EURO SIGN
         // U+00A5: "¥" YEN SIGN
         // U+20B1: "₱" PESO SIGN
-        /* 44 */ "\u00A2,\u00A3,\u20AC,\u00A5,\u20B1",
-        /* 45 */ "\u00A2,\u00A3,$,\u00A5,\u20B1",
-        /* 46 */ "\u00A2,$,\u20AC,\u00A5,\u20B1",
-        /* 47 */ "\u00A2,$,\u20AC,\u00A3,\u00A5,\u20B1",
-        /* 48 */ "!fixedColumnOrder!8,\",\',#,-,:,!,\\,,?,@,&,\\%,+,;,/,(,)",
+        /* 45 */ "\u00A2,\u00A3,\u20AC,\u00A5,\u20B1",
+        /* 46 */ "\u00A2,\u00A3,$,\u00A5,\u20B1",
+        /* 47 */ "\u00A2,$,\u20AC,\u00A5,\u20B1",
+        /* 48 */ "\u00A2,$,\u20AC,\u00A3,\u00A5,\u20B1",
+        /* 49 */ "!fixedColumnOrder!8,\",\',#,-,:,!,\\,,?,@,&,\\%,+,;,/,(,)",
         // U+2020: "†" DAGGER
         // U+2021: "‡" DOUBLE DAGGER
         // U+2605: "★" BLACK STAR
-        /* 49 */ "\u2020,\u2021,\u2605",
+        /* 50 */ "\u2020,\u2021,\u2605",
         // U+266A: "♪" EIGHTH NOTE
         // U+2665: "♥" BLACK HEART SUIT
         // U+2660: "♠" BLACK SPADE SUIT
         // U+2666: "♦" BLACK DIAMOND SUIT
         // U+2663: "♣" BLACK CLUB SUIT
-        /* 50 */ "\u266A,\u2665,\u2660,\u2666,\u2663",
+        /* 51 */ "\u266A,\u2665,\u2660,\u2666,\u2663",
         // U+00B1: "±" PLUS-MINUS SIGN
-        /* 51 */ "\u00B1",
+        /* 52 */ "\u00B1",
         // The all letters need to be mirrored are found at
         // http://www.unicode.org/Public/6.1.0/ucd/BidiMirroring.txt
-        /* 52 */ "!fixedColumnOrder!3,<,{,[",
-        /* 53 */ "!fixedColumnOrder!3,>,},]",
+        /* 53 */ "!fixedColumnOrder!3,<,{,[",
+        /* 54 */ "!fixedColumnOrder!3,>,},]",
         // U+2039: "‹" SINGLE LEFT-POINTING ANGLE QUOTATION MARK
         // U+203A: "›" SINGLE RIGHT-POINTING ANGLE QUOTATION MARK
         // U+2264: "≤" LESS-THAN OR EQUAL TO
@@ -286,95 +287,148 @@ public final class KeyboardTextsSet {
         // U+201D: "”" RIGHT DOUBLE QUOTATION MARK
         // U+201E: "„" DOUBLE LOW-9 QUOTATION MARK
         // U+201F: "‟" DOUBLE HIGH-REVERSED-9 QUOTATION MARK
-        /* 54 */ "!fixedColumnOrder!3,\u2039,\u2264,\u00AB",
-        /* 55 */ "!fixedColumnOrder!3,\u203A,\u2265,\u00BB",
-        /* 56 */ EMPTY,
+        /* 55 */ "!fixedColumnOrder!3,\u2039,\u2264,\u00AB",
+        /* 56 */ "!fixedColumnOrder!3,\u203A,\u2265,\u00BB",
         /* 57 */ EMPTY,
-        /* 58 */ "1",
-        /* 59 */ "2",
-        /* 60 */ "3",
-        /* 61 */ "4",
-        /* 62 */ "5",
-        /* 63 */ "6",
-        /* 64 */ "7",
-        /* 65 */ "8",
-        /* 66 */ "9",
-        /* 67 */ "0",
-        /* 68~ */
+        /* 58 */ EMPTY,
+        /* 59 */ "1",
+        /* 60 */ "2",
+        /* 61 */ "3",
+        /* 62 */ "4",
+        /* 63 */ "5",
+        /* 64 */ "6",
+        /* 65 */ "7",
+        /* 66 */ "8",
+        /* 67 */ "9",
+        /* 68 */ "0",
+        /* 69~ */
         EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
-        /* ~77 */
+        /* ~78 */
         // U+00B9: "¹" SUPERSCRIPT ONE
         // U+00BD: "½" VULGAR FRACTION ONE HALF
         // U+2153: "⅓" VULGAR FRACTION ONE THIRD
         // U+00BC: "¼" VULGAR FRACTION ONE QUARTER
         // U+215B: "⅛" VULGAR FRACTION ONE EIGHTH
-        /* 78 */ "\u00B9,\u00BD,\u2153,\u00BC,\u215B",
+        /* 79 */ "\u00B9,\u00BD,\u2153,\u00BC,\u215B",
         // U+00B2: "²" SUPERSCRIPT TWO
         // U+2154: "⅔" VULGAR FRACTION TWO THIRDS
-        /* 79 */ "\u00B2,\u2154",
+        /* 80 */ "\u00B2,\u2154",
         // U+00B3: "³" SUPERSCRIPT THREE
         // U+00BE: "¾" VULGAR FRACTION THREE QUARTERS
         // U+215C: "⅜" VULGAR FRACTION THREE EIGHTHS
-        /* 80 */ "\u00B3,\u00BE,\u215C",
+        /* 81 */ "\u00B3,\u00BE,\u215C",
         // U+2074: "⁴" SUPERSCRIPT FOUR
-        /* 81 */ "\u2074",
+        /* 82 */ "\u2074",
         // U+215D: "⅝" VULGAR FRACTION FIVE EIGHTHS
-        /* 82 */ "\u215D",
-        /* 83 */ EMPTY,
+        /* 83 */ "\u215D",
+        /* 84 */ EMPTY,
         // U+215E: "⅞" VULGAR FRACTION SEVEN EIGHTHS
-        /* 84 */ "\u215E",
-        /* 85 */ EMPTY,
+        /* 85 */ "\u215E",
         /* 86 */ EMPTY,
+        /* 87 */ EMPTY,
         // U+207F: "ⁿ" SUPERSCRIPT LATIN SMALL LETTER N
         // U+2205: "∅" EMPTY SET
-        /* 87 */ "\u207F,\u2205",
-        /* 88 */ ",",
-        /* 89 */ EMPTY,
-        /* 90 */ "?",
-        /* 91 */ ";",
-        /* 92 */ "%",
+        /* 88 */ "\u207F,\u2205",
+        /* 89 */ ",",
+        /* 90 */ EMPTY,
+        /* 91 */ "?",
+        /* 92 */ ";",
+        /* 93 */ "%",
         // U+00A1: "¡" INVERTED EXCLAMATION MARK
-        /* 93 */ "\u00A1",
+        /* 94 */ "\u00A1",
         // U+00BF: "¿" INVERTED QUESTION MARK
-        /* 94 */ "\u00BF",
-        /* 95 */ EMPTY,
+        /* 95 */ "\u00BF",
+        /* 96 */ EMPTY,
         // U+2030: "‰" PER MILLE SIGN
-        /* 96 */ "\u2030",
-        /* 97 */ ",",
-        /* 98 */ "!",
+        /* 97 */ "\u2030",
+        /* 98 */ ",",
         /* 99 */ "!",
-        /* 100 */ "?",
+        /* 100 */ "!",
         /* 101 */ "?",
-        /* 102 */ "\'",
-        /* 103 */ "\"",
+        /* 102 */ "?",
+        /* 103 */ "\'",
         /* 104 */ "\"",
-        /* 105 */ "!fixedColumnOrder!2,!hasLabels!,!text/label_time_am,!text/label_time_pm",
-        /* 106 */ "!icon/settings_key|!code/key_settings",
-        /* 107 */ "!icon/shortcut_key|!code/key_shortcut",
-        /* 108 */ "!hasLabels!,!text/label_next_key|!code/key_action_next",
-        /* 109 */ "!hasLabels!,!text/label_previous_key|!code/key_action_previous",
+        /* 105 */ "\"",
+        /* 106 */ "!fixedColumnOrder!2,!hasLabels!,!text/label_time_am,!text/label_time_pm",
+        /* 107 */ "!icon/settings_key|!code/key_settings",
+        /* 108 */ "!icon/shortcut_key|!code/key_shortcut",
+        /* 109 */ "!hasLabels!,!text/label_next_key|!code/key_action_next",
+        /* 110 */ "!hasLabels!,!text/label_previous_key|!code/key_action_previous",
         // Label for "switch to more symbol" modifier key.  Must be short to fit on key!
-        /* 110 */ "= \\ <",
+        /* 111 */ "= \\ <",
         // Label for "switch to more symbol" modifier key on tablets.  Must be short to fit on key!
-        /* 111 */ "~ \\ {",
+        /* 112 */ "~ \\ {",
         // Label for "Tab" key.  Must be short to fit on key!
-        /* 112 */ "Tab",
+        /* 113 */ "Tab",
         // Label for "switch to phone numeric" key.  Must be short to fit on key!
-        /* 113 */ "123",
+        /* 114 */ "123",
         // Label for "switch to phone symbols" key.  Must be short to fit on key!
         // U+FF0A: "＊" FULLWIDTH ASTERISK
         // U+FF03: "＃" FULLWIDTH NUMBER SIGN
-        /* 114 */ "\uFF0A\uFF03",
+        /* 115 */ "\uFF0A\uFF03",
         // Key label for "ante meridiem"
-        /* 115 */ "AM",
+        /* 116 */ "AM",
         // Key label for "post meridiem"
-        /* 116 */ "PM",
+        /* 117 */ "PM",
         // Label for "switch to symbols" key on PC QWERTY layout
-        /* 117 */ "Sym",
-        /* 118 */ ".com",
+        /* 118 */ "Sym",
+        /* 119 */ ".com",
         // popular web domains for the locale - most popular, displayed on the keyboard
-        /* 119 */ "!hasLabels!,.net,.org,.gov,.edu",
-        /* 120 */ "!fixedColumnOrder!5,!hasLabels!,=-O|=-O ,:-P|:-P ,;-)|;-) ,:-(|:-( ,:-)|:-) ,:-!|:-! ,:-$|:-$ ,B-)|B-) ,:O|:O ,:-*|:-* ,:-D|:-D ,:\'(|:\'( ,:-\\\\|:-\\\\ ,O:-)|O:-) ,:-[|:-[ ",
+        /* 120 */ "!hasLabels!,.net,.org,.gov,.edu",
+        /* 121 */ "!fixedColumnOrder!5,!hasLabels!,=-O|=-O ,:-P|:-P ,;-)|;-) ,:-(|:-( ,:-)|:-) ,:-!|:-! ,:-$|:-$ ,B-)|B-) ,:O|:O ,:-*|:-* ,:-D|:-D ,:\'(|:\'( ,:-\\\\|:-\\\\ ,O:-)|O:-) ,:-[|:-[ ",
+    };
+
+    /* Language af: Afrikaans */
+    private static final String[] LANGUAGE_af = {
+        // This is the same as Dutch except more keys of y and demoting vowels with diaeresis.
+        // U+00E1: "á" LATIN SMALL LETTER A WITH ACUTE
+        // U+00E2: "â" LATIN SMALL LETTER A WITH CIRCUMFLEX
+        // U+00E4: "ä" LATIN SMALL LETTER A WITH DIAERESIS
+        // U+00E0: "à" LATIN SMALL LETTER A WITH GRAVE
+        // U+00E6: "æ" LATIN SMALL LETTER AE
+        // U+00E3: "ã" LATIN SMALL LETTER A WITH TILDE
+        // U+00E5: "å" LATIN SMALL LETTER A WITH RING ABOVE
+        // U+0101: "ā" LATIN SMALL LETTER A WITH MACRON
+        /* 0 */ "\u00E1,\u00E2,\u00E4,\u00E0,\u00E6,\u00E3,\u00E5,\u0101",
+        // U+00E9: "é" LATIN SMALL LETTER E WITH ACUTE
+        // U+00E8: "è" LATIN SMALL LETTER E WITH GRAVE
+        // U+00EA: "ê" LATIN SMALL LETTER E WITH CIRCUMFLEX
+        // U+00EB: "ë" LATIN SMALL LETTER E WITH DIAERESIS
+        // U+0119: "ę" LATIN SMALL LETTER E WITH OGONEK
+        // U+0117: "ė" LATIN SMALL LETTER E WITH DOT ABOVE
+        // U+0113: "ē" LATIN SMALL LETTER E WITH MACRON
+        /* 1 */ "\u00E9,\u00E8,\u00EA,\u00EB,\u0119,\u0117,\u0113",
+        // U+00ED: "í" LATIN SMALL LETTER I WITH ACUTE
+        // U+00EC: "ì" LATIN SMALL LETTER I WITH GRAVE
+        // U+00EF: "ï" LATIN SMALL LETTER I WITH DIAERESIS
+        // U+00EE: "î" LATIN SMALL LETTER I WITH CIRCUMFLEX
+        // U+012F: "į" LATIN SMALL LETTER I WITH OGONEK
+        // U+012B: "ī" LATIN SMALL LETTER I WITH MACRON
+        // U+0133: "ĳ" LATIN SMALL LIGATURE IJ
+        /* 2 */ "\u00ED,\u00EC,\u00EF,\u00EE,\u012F,\u012B,\u0133",
+        // U+00F3: "ó" LATIN SMALL LETTER O WITH ACUTE
+        // U+00F4: "ô" LATIN SMALL LETTER O WITH CIRCUMFLEX
+        // U+00F6: "ö" LATIN SMALL LETTER O WITH DIAERESIS
+        // U+00F2: "ò" LATIN SMALL LETTER O WITH GRAVE
+        // U+00F5: "õ" LATIN SMALL LETTER O WITH TILDE
+        // U+0153: "œ" LATIN SMALL LIGATURE OE
+        // U+00F8: "ø" LATIN SMALL LETTER O WITH STROKE
+        // U+014D: "ō" LATIN SMALL LETTER O WITH MACRON
+        /* 3 */ "\u00F3,\u00F4,\u00F6,\u00F2,\u00F5,\u0153,\u00F8,\u014D",
+        // U+00FA: "ú" LATIN SMALL LETTER U WITH ACUTE
+        // U+00FB: "û" LATIN SMALL LETTER U WITH CIRCUMFLEX
+        // U+00FC: "ü" LATIN SMALL LETTER U WITH DIAERESIS
+        // U+00F9: "ù" LATIN SMALL LETTER U WITH GRAVE
+        // U+016B: "ū" LATIN SMALL LETTER U WITH MACRON
+        /* 4 */ "\u00FA,\u00FB,\u00FC,\u00F9,\u016B",
+        /* 5 */ null,
+        // U+00F1: "ñ" LATIN SMALL LETTER N WITH TILDE
+        // U+0144: "ń" LATIN SMALL LETTER N WITH ACUTE
+        /* 6 */ "\u00F1,\u0144",
+        /* 7 */ null,
+        // U+00FD: "ý" LATIN SMALL LETTER Y WITH ACUTE
+        // U+0133: "ĳ" LATIN SMALL LIGATURE IJ
+        /* 8 */ "\u00FD,\u0133",
     };
 
     /* Language ar: Arabic */
@@ -382,33 +436,33 @@ public final class KeyboardTextsSet {
         /* 0~ */
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
-        null, null, null, null, null, null, null, null, null, null, null, null,
-        /* ~41 */
+        null, null, null, null, null, null, null, null, null, null, null, null, null,
+        /* ~42 */
         // TODO: Neither DroidSans nor Roboto have the glyph for U+201F DOUBLE HIGH-REVERSED-9 QUOTATION MARK
         // <string name="more_keys_for_double_quote">&#x201C;,&#x201D;,&#x201E;,&#x201F;,&#x00AB;|&#x00BB;,&#x00BB;|&#x00AB;</string>
-        /* 42 */ "!fixedColumnOrder!4,\u201C,\u201D,\u00AB|\u00BB,\u00BB|\u00AB",
+        /* 43 */ "!fixedColumnOrder!4,\u201C,\u201D,\u00AB|\u00BB,\u00BB|\u00AB",
         // TODO: Neither DroidSans nor Roboto have the glyph for U+201F DOUBLE HIGH-REVERSED-9 QUOTATION MARK
         // <string name="more_keys_for_tablet_double_quote">!fixedColumnOrder!6,&#x201C;,&#x201D;,&#x201E;,&#x201F;,&#x00AB;|&#x00BB;,&#x00BB|&#x00AB;;,&#x2018;,&#x2019;,&#x201A;,&#x201B;</string>
-        /* 43 */ "!fixedColumnOrder!4,\u201C,\u201D,\u00AB|\u00BB,\u00BB|\u00AB,\u2018,\u2019,\u201A,\u201B",
-        /* 44~ */
+        /* 44 */ "!fixedColumnOrder!4,\u201C,\u201D,\u00AB|\u00BB,\u00BB|\u00AB,\u2018,\u2019,\u201A,\u201B",
+        /* 45~ */
         null, null, null, null,
-        /* ~47 */
+        /* ~48 */
         // U+061F: "؟" ARABIC QUESTION MARK
         // U+060C: "،" ARABIC COMMA
         // U+061B: "؛" ARABIC SEMICOLON
-        /* 48 */ "!fixedColumnOrder!8,\",\',#,-,:,!,\u060C,\u061F,@,&,\\%,+,\u061B,/,(,)",
+        /* 49 */ "!fixedColumnOrder!8,\",\',#,-,:,!,\u060C,\u061F,@,&,\\%,+,\u061B,/,(,)",
         // U+2605: "★" BLACK STAR
         // U+066D: "٭" ARABIC FIVE POINTED STAR
-        /* 49 */ "\u2605,\u066D",
+        /* 50 */ "\u2605,\u066D",
         // U+266A: "♪" EIGHTH NOTE
-        /* 50 */ "\u266A",
-        /* 51 */ null,
+        /* 51 */ "\u266A",
+        /* 52 */ null,
         // The all letters need to be mirrored are found at
         // http://www.unicode.org/Public/6.1.0/ucd/BidiMirroring.txt
         // U+FD3E: "﴾" ORNATE LEFT PARENTHESIS
         // U+FD3F: "﴿" ORNATE RIGHT PARENTHESIS
-        /* 52 */ "!fixedColumnOrder!4,\uFD3E|\uFD3F,<|>,{|},[|]",
-        /* 53 */ "!fixedColumnOrder!4,\uFD3F|\uFD3E,>|<,}|{,]|[",
+        /* 53 */ "!fixedColumnOrder!4,\uFD3E|\uFD3F,<|>,{|},[|]",
+        /* 54 */ "!fixedColumnOrder!4,\uFD3F|\uFD3E,>|<,}|{,]|[",
         // U+2264: "≤" LESS-THAN OR EQUAL TO
         // U+2265: "≥" GREATER-THAN EQUAL TO
         // U+00AB: "«" LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
@@ -424,8 +478,8 @@ public final class KeyboardTextsSet {
         // U+201D: "”" RIGHT DOUBLE QUOTATION MARK
         // U+201E: "„" DOUBLE LOW-9 QUOTATION MARK
         // U+201F: "‟" DOUBLE HIGH-REVERSED-9 QUOTATION MARK
-        /* 54 */ "!fixedColumnOrder!3,\u2039|\u203A,\u2264|\u2265,\u00AB|\u00BB",
-        /* 55 */ "!fixedColumnOrder!3,\u203A|\u2039,\u2265|\u2264,\u00BB|\u00AB",
+        /* 55 */ "!fixedColumnOrder!3,\u2039|\u203A,\u2264|\u2265,\u00AB|\u00BB",
+        /* 56 */ "!fixedColumnOrder!3,\u203A|\u2039,\u2265|\u2264,\u00BB|\u00AB",
         // U+0655: "ٕ" ARABIC HAMZA BELOW
         // U+0654: "ٔ" ARABIC HAMZA ABOVE
         // U+0652: "ْ" ARABIC SUKUN
@@ -441,64 +495,64 @@ public final class KeyboardTextsSet {
         // U+064E: "َ" ARABIC FATHA
         // U+0640: "ـ" ARABIC TATWEEL
         // In order to make Tatweel easily distinguishable from other punctuations, we use consecutive Tatweels only for its displayed label.
-        /* 56 */ "!fixedColumnOrder!7,\u0655,\u0654,\u0652,\u064D,\u064C,\u064B,\u0651,\u0656,\u0670,\u0653,\u0650,\u064F,\u064E,\u0640\u0640\u0640|\u0640",
-        /* 57 */ "\u0651",
+        /* 57 */ "!fixedColumnOrder!7,\u0655,\u0654,\u0652,\u064D,\u064C,\u064B,\u0651,\u0656,\u0670,\u0653,\u0650,\u064F,\u064E,\u0640\u0640\u0640|\u0640",
+        /* 58 */ "\u0651",
         // U+0661: "١" ARABIC-INDIC DIGIT ONE
-        /* 58 */ "\u0661",
+        /* 59 */ "\u0661",
         // U+0662: "٢" ARABIC-INDIC DIGIT TWO
-        /* 59 */ "\u0662",
+        /* 60 */ "\u0662",
         // U+0663: "٣" ARABIC-INDIC DIGIT THREE
-        /* 60 */ "\u0663",
+        /* 61 */ "\u0663",
         // U+0664: "٤" ARABIC-INDIC DIGIT FOUR
-        /* 61 */ "\u0664",
+        /* 62 */ "\u0664",
         // U+0665: "٥" ARABIC-INDIC DIGIT FIVE
-        /* 62 */ "\u0665",
+        /* 63 */ "\u0665",
         // U+0666: "٦" ARABIC-INDIC DIGIT SIX
-        /* 63 */ "\u0666",
+        /* 64 */ "\u0666",
         // U+0667: "٧" ARABIC-INDIC DIGIT SEVEN
-        /* 64 */ "\u0667",
+        /* 65 */ "\u0667",
         // U+0668: "٨" ARABIC-INDIC DIGIT EIGHT
-        /* 65 */ "\u0668",
+        /* 66 */ "\u0668",
         // U+0669: "٩" ARABIC-INDIC DIGIT NINE
-        /* 66 */ "\u0669",
+        /* 67 */ "\u0669",
         // U+0660: "٠" ARABIC-INDIC DIGIT ZERO
-        /* 67 */ "\u0660",
-        /* 68 */ "1",
-        /* 69 */ "2",
-        /* 70 */ "3",
-        /* 71 */ "4",
-        /* 72 */ "5",
-        /* 73 */ "6",
-        /* 74 */ "7",
-        /* 75 */ "8",
-        /* 76 */ "9",
+        /* 68 */ "\u0660",
+        /* 69 */ "1",
+        /* 70 */ "2",
+        /* 71 */ "3",
+        /* 72 */ "4",
+        /* 73 */ "5",
+        /* 74 */ "6",
+        /* 75 */ "7",
+        /* 76 */ "8",
+        /* 77 */ "9",
         // U+066B: "٫" ARABIC DECIMAL SEPARATOR
         // U+066C: "٬" ARABIC THOUSANDS SEPARATOR
-        /* 77 */ "0,\u066B,\u066C",
-        /* 78~ */
+        /* 78 */ "0,\u066B,\u066C",
+        /* 79~ */
         null, null, null, null, null, null, null, null, null, null,
-        /* ~87 */
+        /* ~88 */
         // U+060C: "،" ARABIC COMMA
-        /* 88 */ "\u060C",
-        /* 89 */ "\\,",
-        /* 90 */ "\u061F",
-        /* 91 */ "\u061B",
+        /* 89 */ "\u060C",
+        /* 90 */ "\\,",
+        /* 91 */ "\u061F",
+        /* 92 */ "\u061B",
         // U+066A: "٪" ARABIC PERCENT SIGN
-        /* 92 */ "\u066A",
-        /* 93 */ null,
-        /* 94 */ "?",
-        /* 95 */ ";",
+        /* 93 */ "\u066A",
+        /* 94 */ null,
+        /* 95 */ "?",
+        /* 96 */ ";",
         // U+2030: "‰" PER MILLE SIGN
-        /* 96 */ "\\%,\u2030",
-        /* 97~ */
+        /* 97 */ "\\%,\u2030",
+        /* 98~ */
         null, null, null, null, null,
-        /* ~101 */
+        /* ~102 */
         // U+060C: "،" ARABIC COMMA
         // U+061B: "؛" ARABIC SEMICOLON
         // U+061F: "؟" ARABIC QUESTION MARK
-        /* 102 */ "\u060C",
-        /* 103 */ "\u061F",
-        /* 104 */ "\u061F,\u061B,!,:,-,/,\',\"",
+        /* 103 */ "\u060C",
+        /* 104 */ "\u061F",
+        /* 105 */ "\u061F,\u061B,!,:,-,/,\',\"",
     };
 
     /* Language be: Belarusian */
@@ -509,19 +563,24 @@ public final class KeyboardTextsSet {
         /* ~24 */
         // U+045E: "ў" CYRILLIC SMALL LETTER SHORT U
         /* 25 */ "\u045E",
+        // U+0451: "ё" CYRILLIC SMALL LETTER IO
+        /* 26 */ "\u0451",
         // U+044B: "ы" CYRILLIC SMALL LETTER YERU
-        /* 26 */ "\u044B",
+        /* 27 */ "\u044B",
+        // U+044D: "э" CYRILLIC SMALL LETTER E
+        /* 28 */ "\u044D",
         // U+0456: "і" CYRILLIC SMALL LETTER BYELORUSSIAN-UKRAINIAN I
-        /* 27 */ "\u0456",
-        /* 28~ */
-        null, null, null,
-        /* ~30 */
-        // U+044A: "ъ" CYRILLIC SMALL LETTER HARD SIGN
-        /* 31 */ "\u044A",
-        /* 32 */ null,
-        /* 33 */ null,
+        /* 29 */ "\u0456",
+        /* 30~ */
+        null, null, null, null, null,
+        /* ~34 */
         // U+044A: "ъ" CYRILLIC SMALL LETTER HARD SIGN
-        /* 34 */ "\u044A",
+        /* 35 */ "\u044A",
+        /* 36~ */
+        null, null, null, null,
+        /* ~39 */
+        // U+0451: "ё" CYRILLIC SMALL LETTER IO
+        /* 40 */ "\u0451",
     };
 
     /* Language ca: Catalan */
@@ -854,22 +913,22 @@ public final class KeyboardTextsSet {
         /* 8~ */
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
-        null, null, null, null, null, null, null, null, null, null,
-        /* ~47 */
+        null, null, null, null, null, null, null, null, null, null, null,
+        /* ~48 */
         // U+00A1: "¡" INVERTED EXCLAMATION MARK
         // U+00BF: "¿" INVERTED QUESTION MARK
-        /* 48 */ "!fixedColumnOrder!9,\u00A1,\",\',#,-,:,!,\\,,?,\u00BF,@,&,\\%,+,;,/,(,)",
-        /* 49~ */
+        /* 49 */ "!fixedColumnOrder!9,\u00A1,\",\',#,-,:,!,\\,,?,\u00BF,@,&,\\%,+,;,/,(,)",
+        /* 50~ */
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
         null, null, null, null, null,
-        /* ~98 */
+        /* ~99 */
         // U+00A1: "¡" INVERTED EXCLAMATION MARK
-        /* 99 */ "!,\u00A1",
-        /* 100 */ null,
+        /* 100 */ "!,\u00A1",
+        /* 101 */ null,
         // U+00BF: "¿" INVERTED QUESTION MARK
-        /* 101 */ "?,\u00BF",
+        /* 102 */ "?,\u00BF",
     };
 
     /* Language et: Estonian */
@@ -977,33 +1036,33 @@ public final class KeyboardTextsSet {
         /* 0~ */
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
-        null, null, null, null, null, null, null, null, null, null, null, null,
-        /* ~41 */
+        null, null, null, null, null, null, null, null, null, null, null, null, null,
+        /* ~42 */
         // TODO: Neither DroidSans nor Roboto have the glyph for U+201F DOUBLE HIGH-REVERSED-9 QUOTATION MARK
         // <string name="more_keys_for_double_quote">&#x201C;,&#x201D;,&#x201E;,&#x201F;,&#x00AB;|&#x00BB;,&#x00BB;|&#x00AB;</string>
-        /* 42 */ "!fixedColumnOrder!4,\u201C,\u201D,\",\'",
+        /* 43 */ "!fixedColumnOrder!4,\u201C,\u201D,\",\'",
         // TODO: Neither DroidSans nor Roboto have the glyph for U+201F DOUBLE HIGH-REVERSED-9 QUOTATION MARK
         // <string name="more_keys_for_tablet_double_quote">!fixedColumnOrder!6,&#x201C;,&#x201D;,&#x201E;,&#x201F;,&#x00AB;|&#x00BB;,&#x00BB|&#x00AB;;,&#x2018;,&#x2019;,&#x201A;,&#x201B;</string>
-        /* 43 */ "!fixedColumnOrder!4,\u201C,\u201D,\u00AB|\u00BB,\u00BB|\u00AB,\u2018,\u2019,\u201A,\u201B",
-        /* 44~ */
+        /* 44 */ "!fixedColumnOrder!4,\u201C,\u201D,\u00AB|\u00BB,\u00BB|\u00AB,\u2018,\u2019,\u201A,\u201B",
+        /* 45~ */
         null, null, null, null,
-        /* ~47 */
+        /* ~48 */
         // U+061F: "؟" ARABIC QUESTION MARK
         // U+060C: "،" ARABIC COMMA
         // U+061B: "؛" ARABIC SEMICOLON
-        /* 48 */ "!fixedColumnOrder!8,\",\',#,-,:,!,\u060C,\u061F,@,&,\\%,+,\u061B,/,(,)",
+        /* 49 */ "!fixedColumnOrder!8,\",\',#,-,:,!,\u060C,\u061F,@,&,\\%,+,\u061B,/,(,)",
         // U+2605: "★" BLACK STAR
         // U+066D: "٭" ARABIC FIVE POINTED STAR
-        /* 49 */ "\u2605,\u066D",
+        /* 50 */ "\u2605,\u066D",
         // U+266A: "♪" EIGHTH NOTE
-        /* 50 */ "\u266A",
-        /* 51 */ null,
+        /* 51 */ "\u266A",
+        /* 52 */ null,
         // The all letters need to be mirrored are found at
         // http://www.unicode.org/Public/6.1.0/ucd/BidiMirroring.txt
         // U+FD3E: "﴾" ORNATE LEFT PARENTHESIS
         // U+FD3F: "﴿" ORNATE RIGHT PARENTHESIS
-        /* 52 */ "!fixedColumnOrder!4,\uFD3E|\uFD3F,<|>,{|},[|]",
-        /* 53 */ "!fixedColumnOrder!4,\uFD3F|\uFD3E,>|<,}|{,]|[",
+        /* 53 */ "!fixedColumnOrder!4,\uFD3E|\uFD3F,<|>,{|},[|]",
+        /* 54 */ "!fixedColumnOrder!4,\uFD3F|\uFD3E,>|<,}|{,]|[",
         // U+2264: "≤" LESS-THAN OR EQUAL TO
         // U+2265: "≥" GREATER-THAN EQUAL TO
         // U+00AB: "«" LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
@@ -1019,8 +1078,8 @@ public final class KeyboardTextsSet {
         // U+201D: "”" RIGHT DOUBLE QUOTATION MARK
         // U+201E: "„" DOUBLE LOW-9 QUOTATION MARK
         // U+201F: "‟" DOUBLE HIGH-REVERSED-9 QUOTATION MARK
-        /* 54 */ "!fixedColumnOrder!3,\u2039|\u203A,\u2264|\u2265,<|>",
-        /* 55 */ "!fixedColumnOrder!3,\u203A|\u2039,\u2265|\u2264,>|<",
+        /* 55 */ "!fixedColumnOrder!3,\u2039|\u203A,\u2264|\u2265,<|>",
+        /* 56 */ "!fixedColumnOrder!3,\u203A|\u2039,\u2265|\u2264,>|<",
         // U+0655: "ٕ" ARABIC HAMZA BELOW
         // U+0652: "ْ" ARABIC SUKUN
         // U+0651: "ّ" ARABIC SHADDA
@@ -1036,68 +1095,68 @@ public final class KeyboardTextsSet {
         // U+064E: "َ" ARABIC FATHA
         // U+0640: "ـ" ARABIC TATWEEL
         // In order to make Tatweel easily distinguishable from other punctuations, we use consecutive Tatweels only for its displayed label.
-        /* 56 */ "!fixedColumnOrder!7,\u0655,\u0652,\u0651,\u064C,\u064D,\u064B,\u0654,\u0656,\u0670,\u0653,\u064F,\u0650,\u064E,\u0640\u0640\u0640|\u0640",
-        /* 57 */ "\u064B",
+        /* 57 */ "!fixedColumnOrder!7,\u0655,\u0652,\u0651,\u064C,\u064D,\u064B,\u0654,\u0656,\u0670,\u0653,\u064F,\u0650,\u064E,\u0640\u0640\u0640|\u0640",
+        /* 58 */ "\u064B",
         // U+06F1: "۱" EXTENDED ARABIC-INDIC DIGIT ONE
-        /* 58 */ "\u06F1",
+        /* 59 */ "\u06F1",
         // U+06F2: "۲" EXTENDED ARABIC-INDIC DIGIT TWO
-        /* 59 */ "\u06F2",
+        /* 60 */ "\u06F2",
         // U+06F3: "۳" EXTENDED ARABIC-INDIC DIGIT THREE
-        /* 60 */ "\u06F3",
+        /* 61 */ "\u06F3",
         // U+06F4: "۴" EXTENDED ARABIC-INDIC DIGIT FOUR
-        /* 61 */ "\u06F4",
+        /* 62 */ "\u06F4",
         // U+06F5: "۵" EXTENDED ARABIC-INDIC DIGIT FIVE
-        /* 62 */ "\u06F5",
+        /* 63 */ "\u06F5",
         // U+06F6: "۶" EXTENDED ARABIC-INDIC DIGIT SIX
-        /* 63 */ "\u06F6",
+        /* 64 */ "\u06F6",
         // U+06F7: "۷" EXTENDED ARABIC-INDIC DIGIT SEVEN
-        /* 64 */ "\u06F7",
+        /* 65 */ "\u06F7",
         // U+06F8: "۸" EXTENDED ARABIC-INDIC DIGIT EIGHT
-        /* 65 */ "\u06F8",
+        /* 66 */ "\u06F8",
         // U+06F9: "۹" EXTENDED ARABIC-INDIC DIGIT NINE
-        /* 66 */ "\u06F9",
+        /* 67 */ "\u06F9",
         // U+06F0: "۰" EXTENDED ARABIC-INDIC DIGIT ZERO
-        /* 67 */ "\u06F0",
-        /* 68 */ "1",
-        /* 69 */ "2",
-        /* 70 */ "3",
-        /* 71 */ "4",
-        /* 72 */ "5",
-        /* 73 */ "6",
-        /* 74 */ "7",
-        /* 75 */ "8",
-        /* 76 */ "9",
+        /* 68 */ "\u06F0",
+        /* 69 */ "1",
+        /* 70 */ "2",
+        /* 71 */ "3",
+        /* 72 */ "4",
+        /* 73 */ "5",
+        /* 74 */ "6",
+        /* 75 */ "7",
+        /* 76 */ "8",
+        /* 77 */ "9",
         // U+066B: "٫" ARABIC DECIMAL SEPARATOR
         // U+066C: "٬" ARABIC THOUSANDS SEPARATOR
-        /* 77 */ "0,\u066B,\u066C",
-        /* 78~ */
+        /* 78 */ "0,\u066B,\u066C",
+        /* 79~ */
         null, null, null, null, null, null, null, null, null, null,
-        /* ~87 */
+        /* ~88 */
         // U+060C: "،" ARABIC COMMA
-        /* 88 */ "\u060C",
-        /* 89 */ "\\,",
-        /* 90 */ "\u061F",
-        /* 91 */ "\u061B",
+        /* 89 */ "\u060C",
+        /* 90 */ "\\,",
+        /* 91 */ "\u061F",
+        /* 92 */ "\u061B",
         // U+066A: "٪" ARABIC PERCENT SIGN
-        /* 92 */ "\u066A",
-        /* 93 */ null,
-        /* 94 */ "?",
-        /* 95 */ ";",
+        /* 93 */ "\u066A",
+        /* 94 */ null,
+        /* 95 */ "?",
+        /* 96 */ ";",
         // U+2030: "‰" PER MILLE SIGN
-        /* 96 */ "\\%,\u2030",
+        /* 97 */ "\\%,\u2030",
         // U+060C: "،" ARABIC COMMA
         // U+061B: "؛" ARABIC SEMICOLON
         // U+061F: "؟" ARABIC QUESTION MARK
         // U+00AB: "«" LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
         // U+00BB: "»" RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
-        /* 97 */ "\u060C",
-        /* 98 */ "!",
-        /* 99 */ "!,\\,",
-        /* 100 */ "\u061F",
-        /* 101 */ "\u061F,?",
-        /* 102 */ "\u060C",
-        /* 103 */ "\u061F",
-        /* 104 */ "!fixedColumnOrder!4,:,!,\u061F,\u061B,-,/,\u00AB|\u00BB,\u00BB|\u00AB",
+        /* 98 */ "\u060C",
+        /* 99 */ "!",
+        /* 100 */ "!,\\,",
+        /* 101 */ "\u061F",
+        /* 102 */ "\u061F,?",
+        /* 103 */ "\u060C",
+        /* 104 */ "\u061F",
+        /* 105 */ "!fixedColumnOrder!4,:,!,\u061F,\u061B,-,/,\u00AB|\u00BB,\u00BB|\u00AB",
     };
 
     /* Language fi: Finnish */
@@ -1206,38 +1265,38 @@ public final class KeyboardTextsSet {
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
-        null, null, null, null, null, null, null, null, null, null, null, null, null,
-        /* ~57 */
+        null, null, null, null, null, null, null, null, null, null, null, null, null, null,
+        /* ~58 */
         // U+0967: "१" DEVANAGARI DIGIT ONE
-        /* 58 */ "\u0967",
+        /* 59 */ "\u0967",
         // U+0968: "२" DEVANAGARI DIGIT TWO
-        /* 59 */ "\u0968",
+        /* 60 */ "\u0968",
         // U+0969: "३" DEVANAGARI DIGIT THREE
-        /* 60 */ "\u0969",
+        /* 61 */ "\u0969",
         // U+096A: "४" DEVANAGARI DIGIT FOUR
-        /* 61 */ "\u096A",
+        /* 62 */ "\u096A",
         // U+096B: "५" DEVANAGARI DIGIT FIVE
-        /* 62 */ "\u096B",
+        /* 63 */ "\u096B",
         // U+096C: "६" DEVANAGARI DIGIT SIX
-        /* 63 */ "\u096C",
+        /* 64 */ "\u096C",
         // U+096D: "७" DEVANAGARI DIGIT SEVEN
-        /* 64 */ "\u096D",
+        /* 65 */ "\u096D",
         // U+096E: "८" DEVANAGARI DIGIT EIGHT
-        /* 65 */ "\u096E",
+        /* 66 */ "\u096E",
         // U+096F: "९" DEVANAGARI DIGIT NINE
-        /* 66 */ "\u096F",
+        /* 67 */ "\u096F",
         // U+0966: "०" DEVANAGARI DIGIT ZERO
-        /* 67 */ "\u0966",
-        /* 68 */ "1",
-        /* 69 */ "2",
-        /* 70 */ "3",
-        /* 71 */ "4",
-        /* 72 */ "5",
-        /* 73 */ "6",
-        /* 74 */ "7",
-        /* 75 */ "8",
-        /* 76 */ "9",
-        /* 77 */ "0",
+        /* 68 */ "\u0966",
+        /* 69 */ "1",
+        /* 70 */ "2",
+        /* 71 */ "3",
+        /* 72 */ "4",
+        /* 73 */ "5",
+        /* 74 */ "6",
+        /* 75 */ "7",
+        /* 76 */ "8",
+        /* 77 */ "9",
+        /* 78 */ "0",
     };
 
     /* Language hr: Croatian */
@@ -1425,27 +1484,27 @@ public final class KeyboardTextsSet {
         /* 0~ */
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
-        null, null, null, null, null, null, null, null, null, null, null, null,
-        /* ~41 */
+        null, null, null, null, null, null, null, null, null, null, null, null, null,
+        /* ~42 */
         // TODO: Neither DroidSans nor Roboto have the glyph for U+201F DOUBLE HIGH-REVERSED-9 QUOTATION MARK
         // <string name="more_keys_for_double_quote">&#x201C;,&#x201D;,&#x201E;,&#x201F;,&#x00AB;|&#x00BB;,&#x00BB;|&#x00AB;</string>
-        /* 42 */ "!fixedColumnOrder!4,\u201C,\u201D,\u00AB|\u00BB,\u00BB|\u00AB",
+        /* 43 */ "!fixedColumnOrder!4,\u201C,\u201D,\u00AB|\u00BB,\u00BB|\u00AB",
         // TODO: Neither DroidSans nor Roboto have the glyph for U+201F DOUBLE HIGH-REVERSED-9 QUOTATION MARK
         // <string name="more_keys_for_tablet_double_quote">!fixedColumnOrder!6,&#x201C;,&#x201D;,&#x201E;,&#x201F;,&#x00AB;|&#x00BB;,&#x00BB|&#x00AB;;,&#x2018;,&#x2019;,&#x201A;,&#x201B;</string>
-        /* 43 */ "!fixedColumnOrder!4,\u201C,\u201D,\u00AB|\u00BB,\u00BB|\u00AB,\u2018,\u2019,\u201A,\u201B",
-        /* 44~ */
+        /* 44 */ "!fixedColumnOrder!4,\u201C,\u201D,\u00AB|\u00BB,\u00BB|\u00AB,\u2018,\u2019,\u201A,\u201B",
+        /* 45~ */
         null, null, null, null, null,
-        /* ~48 */
+        /* ~49 */
         // U+2605: "★" BLACK STAR
-        /* 49 */ "\u2605",
-        /* 50 */ null,
+        /* 50 */ "\u2605",
+        /* 51 */ null,
         // U+00B1: "±" PLUS-MINUS SIGN
         // U+FB29: "﬩" HEBREW LETTER ALTERNATIVE PLUS SIGN
-        /* 51 */ "\u00B1,\uFB29",
+        /* 52 */ "\u00B1,\uFB29",
         // The all letters need to be mirrored are found at
         // http://www.unicode.org/Public/6.1.0/ucd/BidiMirroring.txt
-        /* 52 */ "!fixedColumnOrder!3,<|>,{|},[|]",
-        /* 53 */ "!fixedColumnOrder!3,>|<,}|{,]|[",
+        /* 53 */ "!fixedColumnOrder!3,<|>,{|},[|]",
+        /* 54 */ "!fixedColumnOrder!3,>|<,}|{,]|[",
         // U+2264: "≤" LESS-THAN OR EQUAL TO
         // U+2265: "≥" GREATER-THAN EQUAL TO
         // U+00AB: "«" LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
@@ -1461,8 +1520,8 @@ public final class KeyboardTextsSet {
         // U+201D: "”" RIGHT DOUBLE QUOTATION MARK
         // U+201E: "„" DOUBLE LOW-9 QUOTATION MARK
         // U+201F: "‟" DOUBLE HIGH-REVERSED-9 QUOTATION MARK
-        /* 54 */ "!fixedColumnOrder!3,\u2039|\u203A,\u2264|\u2265,\u00AB|\u00BB",
-        /* 55 */ "!fixedColumnOrder!3,\u203A|\u2039,\u2265|\u2264,\u00BB|\u00AB",
+        /* 55 */ "!fixedColumnOrder!3,\u2039|\u203A,\u2264|\u2265,\u00AB|\u00BB",
+        /* 56 */ "!fixedColumnOrder!3,\u203A|\u2039,\u2265|\u2264,\u00BB|\u00AB",
     };
 
     /* Language ky: Kirghiz */
@@ -1473,22 +1532,29 @@ public final class KeyboardTextsSet {
         /* ~24 */
         // U+0449: "щ" CYRILLIC SMALL LETTER SHCHA
         /* 25 */ "\u0449",
+        // U+044A: "ъ" CYRILLIC SMALL LETTER HARD SIGN
+        /* 26 */ "\u044A",
         // U+044B: "ы" CYRILLIC SMALL LETTER YERU
-        /* 26 */ "\u044B",
+        /* 27 */ "\u044B",
+        // U+044D: "э" CYRILLIC SMALL LETTER E
+        /* 28 */ "\u044D",
         // U+0438: "и" CYRILLIC SMALL LETTER I
-        /* 27 */ "\u0438",
+        /* 29 */ "\u0438",
         // U+04AF: "ү" CYRILLIC SMALL LETTER STRAIGHT U
-        /* 28 */ "\u04AF",
-        /* 29 */ null,
+        /* 30 */ "\u04AF",
         // U+04A3: "ң" CYRILLIC SMALL LETTER EN WITH DESCENDER
-        /* 30 */ "\u04A3",
-        // U+044A: "ъ" CYRILLIC SMALL LETTER HARD SIGN
-        /* 31 */ "\u044A",
+        /* 31 */ "\u04A3",
         /* 32 */ null,
+        /* 33 */ null,
         // U+04E9: "ө" CYRILLIC SMALL LETTER BARRED O
-        /* 33 */ "\u04E9",
+        /* 34 */ "\u04E9",
         // U+044A: "ъ" CYRILLIC SMALL LETTER HARD SIGN
-        /* 34 */ "\u044A",
+        /* 35 */ "\u044A",
+        /* 36~ */
+        null, null, null, null,
+        /* ~39 */
+        // U+0451: "ё" CYRILLIC SMALL LETTER IO
+        /* 40 */ "\u0451",
     };
 
     /* Language lt: Lithuanian */
@@ -1675,21 +1741,21 @@ public final class KeyboardTextsSet {
         /* 0~ */
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
-        null, null, null, null, null,
-        /* ~34 */
+        null, null, null, null, null, null,
+        /* ~35 */
         // U+0455: "ѕ" CYRILLIC SMALL LETTER DZE
-        /* 35 */ "\u0455",
+        /* 36 */ "\u0455",
         // U+045C: "ќ" CYRILLIC SMALL LETTER KJE
-        /* 36 */ "\u045C",
+        /* 37 */ "\u045C",
         // U+0437: "з" CYRILLIC SMALL LETTER ZE
-        /* 37 */ "\u0437",
+        /* 38 */ "\u0437",
         // U+0453: "ѓ" CYRILLIC SMALL LETTER GJE
-        /* 38 */ "\u0453",
+        /* 39 */ "\u0453",
         // U+0450: "ѐ" CYRILLIC SMALL LETTER IE WITH GRAVE
-        /* 39 */ "\u0450",
+        /* 40 */ "\u0450",
         // U+045D: "ѝ" CYRILLIC SMALL LETTER I WITH GRAVE
-        /* 40 */ "\u045D",
-        /* 41 */ null,
+        /* 41 */ "\u045D",
+        /* 42 */ null,
         // U+2018: "‘" LEFT SINGLE QUOTATION MARK
         // U+2019: "’" RIGHT SINGLE QUOTATION MARK
         // U+201A: "‚" SINGLE LOW-9 QUOTATION MARK
@@ -1700,10 +1766,10 @@ public final class KeyboardTextsSet {
         // U+201F: "‟" DOUBLE HIGH-REVERSED-9 QUOTATION MARK
         // TODO: Neither DroidSans nor Roboto have the glyph for U+201F DOUBLE HIGH-REVERSED-9 QUOTATION MARK.
         // <string name="more_keys_for_double_quote">!fixedColumnOrder!6,&#x201E;,&#x201C;,&#x201D;,&#x201F;,&#x00AB;,&#x00BB;</string>
-        /* 42 */ "!fixedColumnOrder!5,\u201E,\u201C,\u201D,\u00AB,\u00BB",
+        /* 43 */ "!fixedColumnOrder!5,\u201E,\u201C,\u201D,\u00AB,\u00BB",
         // TODO: Neither DroidSans nor Roboto have the glyph for U+201F DOUBLE HIGH-REVERSED-9 QUOTATION MARK.
         // <string name="more_keys_for_tablet_double_quote">!fixedColumnOrder!6,&#x201C;,&#x201D;,&#x201E;,&#x201F;,&#x00AB;,&#x00BB;,&#x2018;,&#x2019;,&#x201A;,&#x201B;</string>
-        /* 43 */ "!fixedColumnOrder!5,\u201E,\u201C,\u201D,\u00AB,\u00BB,\u2018,\u2019,\u201A,\u201B",
+        /* 44 */ "!fixedColumnOrder!5,\u201E,\u201C,\u201D,\u00AB,\u00BB,\u2018,\u2019,\u201A,\u201B",
     };
 
     /* Language nb: Norwegian Bokmål */
@@ -1965,20 +2031,24 @@ public final class KeyboardTextsSet {
         /* ~24 */
         // U+0449: "щ" CYRILLIC SMALL LETTER SHCHA
         /* 25 */ "\u0449",
+        // U+044A: "ъ" CYRILLIC SMALL LETTER HARD SIGN
+        /* 26 */ "\u044A",
         // U+044B: "ы" CYRILLIC SMALL LETTER YERU
-        /* 26 */ "\u044B",
+        /* 27 */ "\u044B",
+        // U+044D: "э" CYRILLIC SMALL LETTER E
+        /* 28 */ "\u044D",
         // U+0438: "и" CYRILLIC SMALL LETTER I
-        /* 27 */ "\u0438",
-        /* 28 */ null,
-        // U+0451: "ё" CYRILLIC SMALL LETTER IO
-        /* 29 */ "\u0451",
-        /* 30 */ null,
-        // U+044A: "ъ" CYRILLIC SMALL LETTER HARD SIGN
-        /* 31 */ "\u044A",
-        /* 32 */ null,
-        /* 33 */ null,
+        /* 29 */ "\u0438",
+        /* 30~ */
+        null, null, null, null, null,
+        /* ~34 */
         // U+044A: "ъ" CYRILLIC SMALL LETTER HARD SIGN
-        /* 34 */ "\u044A",
+        /* 35 */ "\u044A",
+        /* 36~ */
+        null, null, null, null,
+        /* ~39 */
+        // U+0451: "ё" CYRILLIC SMALL LETTER IO
+        /* 40 */ "\u0451",
     };
 
     /* Language sk: Slovak */
@@ -2096,21 +2166,40 @@ public final class KeyboardTextsSet {
         /* 0~ */
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
         null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
-        null, null, null, null, null,
-        /* ~34 */
+        null, null, null, null, null, null,
+        /* ~35 */
+        // TODO: Move these to sr-Latn once we can handle IETF language tag with script name specified.
+        // BEGIN: More keys definitions for Serbian (Latin)
+        // U+0161: "š" LATIN SMALL LETTER S WITH CARON
+        // U+00DF: "ß" LATIN SMALL LETTER SHARP S
+        // U+015B: "ś" LATIN SMALL LETTER S WITH ACUTE
+        // <string name="more_keys_for_s">&#x0161;,&#x00DF;,&#x015B;</string>
+        // U+010D: "č" LATIN SMALL LETTER C WITH CARON
+        // U+00E7: "ç" LATIN SMALL LETTER C WITH CEDILLA
+        // U+0107: "ć" LATIN SMALL LETTER C WITH ACUTE
+        // <string name="more_keys_for_c">&#x010D;,&#x00E7;,&#x0107;</string>
+        // U+010F: "ď" LATIN SMALL LETTER D WITH CARON
+        // <string name="more_keys_for_d">&#x010F;</string>
+        // U+017E: "ž" LATIN SMALL LETTER Z WITH CARON
+        // U+017A: "ź" LATIN SMALL LETTER Z WITH ACUTE
+        // U+017C: "ż" LATIN SMALL LETTER Z WITH DOT ABOVE
+        // <string name="more_keys_for_z">&#x017E;,&#x017A;,&#x017C;</string>
+        // END: More keys definitions for Serbian (Latin)
+        // BEGIN: More keys definitions for Serbian (Cyrillic)
         // U+0437: "з" CYRILLIC SMALL LETTER ZE
-        /* 35 */ "\u0437",
+        /* 36 */ "\u0437",
         // U+045B: "ћ" CYRILLIC SMALL LETTER TSHE
-        /* 36 */ "\u045B",
+        /* 37 */ "\u045B",
         // U+0455: "ѕ" CYRILLIC SMALL LETTER DZE
-        /* 37 */ "\u0455",
+        /* 38 */ "\u0455",
         // U+0452: "ђ" CYRILLIC SMALL LETTER DJE
-        /* 38 */ "\u0452",
+        /* 39 */ "\u0452",
         // U+0450: "ѐ" CYRILLIC SMALL LETTER IE WITH GRAVE
-        /* 39 */ "\u0450",
+        /* 40 */ "\u0450",
         // U+045D: "ѝ" CYRILLIC SMALL LETTER I WITH GRAVE
-        /* 40 */ "\u045D",
-        /* 41 */ null,
+        /* 41 */ "\u045D",
+        /* 42 */ null,
+        // END: More keys definitions for Serbian (Cyrillic)
         // U+2018: "‘" LEFT SINGLE QUOTATION MARK
         // U+2019: "’" RIGHT SINGLE QUOTATION MARK
         // U+201A: "‚" SINGLE LOW-9 QUOTATION MARK
@@ -2121,10 +2210,10 @@ public final class KeyboardTextsSet {
         // U+201F: "‟" DOUBLE HIGH-REVERSED-9 QUOTATION MARK
         // TODO: Neither DroidSans nor Roboto have the glyph for U+201F DOUBLE HIGH-REVERSED-9 QUOTATION MARK.
         // <string name="more_keys_for_double_quote">!fixedColumnOrder!6,&#x201E;,&#x201C;,&#x201D;,&#x201F;,&#x00AB;,&#x00BB;</string>
-        /* 42 */ "!fixedColumnOrder!5,\u201E,\u201C,\u201D,\u00AB,\u00BB",
+        /* 43 */ "!fixedColumnOrder!5,\u201E,\u201C,\u201D,\u00AB,\u00BB",
         // TODO: Neither DroidSans nor Roboto have the glyph for U+201F DOUBLE HIGH-REVERSED-9 QUOTATION MARK.
         // <string name="more_keys_for_tablet_double_quote">!fixedColumnOrder!6,&#x201C;,&#x201D;,&#x201E;,&#x201F;,&#x00AB;,&#x00BB;,&#x2018;,&#x2019;,&#x201A;,&#x201B;</string>
-        /* 43 */ "!fixedColumnOrder!5,\u201E,\u201C,\u201D,\u00AB,\u00BB,\u2018,\u2019,\u201A,\u201B",
+        /* 44 */ "!fixedColumnOrder!5,\u201E,\u201C,\u201D,\u00AB,\u00BB,\u2018,\u2019,\u201A,\u201B",
     };
 
     /* Language sv: Swedish */
@@ -2169,6 +2258,111 @@ public final class KeyboardTextsSet {
         /* 24 */ "\u00E6",
     };
 
+    /* Language sw: Swahili */
+    private static final String[] LANGUAGE_sw = {
+        // This is the same as English except more_keys_for_g.
+        // U+00E0: "à" LATIN SMALL LETTER A WITH GRAVE
+        // U+00E1: "á" LATIN SMALL LETTER A WITH ACUTE
+        // U+00E2: "â" LATIN SMALL LETTER A WITH CIRCUMFLEX
+        // U+00E4: "ä" LATIN SMALL LETTER A WITH DIAERESIS
+        // U+00E6: "æ" LATIN SMALL LETTER AE
+        // U+00E3: "ã" LATIN SMALL LETTER A WITH TILDE
+        // U+00E5: "å" LATIN SMALL LETTER A WITH RING ABOVE
+        // U+0101: "ā" LATIN SMALL LETTER A WITH MACRON
+        /* 0 */ "\u00E0,\u00E1,\u00E2,\u00E4,\u00E6,\u00E3,\u00E5,\u0101",
+        // U+00E8: "è" LATIN SMALL LETTER E WITH GRAVE
+        // U+00E9: "é" LATIN SMALL LETTER E WITH ACUTE
+        // U+00EA: "ê" LATIN SMALL LETTER E WITH CIRCUMFLEX
+        // U+00EB: "ë" LATIN SMALL LETTER E WITH DIAERESIS
+        // U+0113: "ē" LATIN SMALL LETTER E WITH MACRON
+        /* 1 */ "\u00E8,\u00E9,\u00EA,\u00EB,\u0113",
+        // U+00EE: "î" LATIN SMALL LETTER I WITH CIRCUMFLEX
+        // U+00EF: "ï" LATIN SMALL LETTER I WITH DIAERESIS
+        // U+00ED: "í" LATIN SMALL LETTER I WITH ACUTE
+        // U+012B: "ī" LATIN SMALL LETTER I WITH MACRON
+        // U+00EC: "ì" LATIN SMALL LETTER I WITH GRAVE
+        /* 2 */ "\u00EE,\u00EF,\u00ED,\u012B,\u00EC",
+        // U+00F4: "ô" LATIN SMALL LETTER O WITH CIRCUMFLEX
+        // U+00F6: "ö" LATIN SMALL LETTER O WITH DIAERESIS
+        // U+00F2: "ò" LATIN SMALL LETTER O WITH GRAVE
+        // U+00F3: "ó" LATIN SMALL LETTER O WITH ACUTE
+        // U+0153: "œ" LATIN SMALL LIGATURE OE
+        // U+00F8: "ø" LATIN SMALL LETTER O WITH STROKE
+        // U+014D: "ō" LATIN SMALL LETTER O WITH MACRON
+        // U+00F5: "õ" LATIN SMALL LETTER O WITH TILDE
+        /* 3 */ "\u00F4,\u00F6,\u00F2,\u00F3,\u0153,\u00F8,\u014D,\u00F5",
+        // U+00FB: "û" LATIN SMALL LETTER U WITH CIRCUMFLEX
+        // U+00FC: "ü" LATIN SMALL LETTER U WITH DIAERESIS
+        // U+00F9: "ù" LATIN SMALL LETTER U WITH GRAVE
+        // U+00FA: "ú" LATIN SMALL LETTER U WITH ACUTE
+        // U+016B: "ū" LATIN SMALL LETTER U WITH MACRON
+        /* 4 */ "\u00FB,\u00FC,\u00F9,\u00FA,\u016B",
+        // U+00DF: "ß" LATIN SMALL LETTER SHARP S
+        /* 5 */ "\u00DF",
+        // U+00F1: "ñ" LATIN SMALL LETTER N WITH TILDE
+        /* 6 */ "\u00F1",
+        // U+00E7: "ç" LATIN SMALL LETTER C WITH CEDILLA
+        /* 7 */ "\u00E7",
+        /* 8~ */
+        null, null, null, null, null, null, null,
+        /* ~14 */
+        /* 15 */ "g\'",
+    };
+
+    /* Language tl: Tagalog */
+    private static final String[] LANGUAGE_tl = {
+        // U+00E1: "á" LATIN SMALL LETTER A WITH ACUTE
+        // U+00E0: "à" LATIN SMALL LETTER A WITH GRAVE
+        // U+00E4: "ä" LATIN SMALL LETTER A WITH DIAERESIS
+        // U+00E2: "â" LATIN SMALL LETTER A WITH CIRCUMFLEX
+        // U+00E3: "ã" LATIN SMALL LETTER A WITH TILDE
+        // U+00E5: "å" LATIN SMALL LETTER A WITH RING ABOVE
+        // U+0105: "ą" LATIN SMALL LETTER A WITH OGONEK
+        // U+00E6: "æ" LATIN SMALL LETTER AE
+        // U+0101: "ā" LATIN SMALL LETTER A WITH MACRON
+        // U+00AA: "ª" FEMININE ORDINAL INDICATOR
+        /* 0 */ "\u00E1,\u00E0,\u00E4,\u00E2,\u00E3,\u00E5,\u0105,\u00E6,\u0101,\u00AA",
+        // U+00E9: "é" LATIN SMALL LETTER E WITH ACUTE
+        // U+00E8: "è" LATIN SMALL LETTER E WITH GRAVE
+        // U+00EB: "ë" LATIN SMALL LETTER E WITH DIAERESIS
+        // U+00EA: "ê" LATIN SMALL LETTER E WITH CIRCUMFLEX
+        // U+0119: "ę" LATIN SMALL LETTER E WITH OGONEK
+        // U+0117: "ė" LATIN SMALL LETTER E WITH DOT ABOVE
+        // U+0113: "ē" LATIN SMALL LETTER E WITH MACRON
+        /* 1 */ "\u00E9,\u00E8,\u00EB,\u00EA,\u0119,\u0117,\u0113",
+        // U+00ED: "í" LATIN SMALL LETTER I WITH ACUTE
+        // U+00EF: "ï" LATIN SMALL LETTER I WITH DIAERESIS
+        // U+00EC: "ì" LATIN SMALL LETTER I WITH GRAVE
+        // U+00EE: "î" LATIN SMALL LETTER I WITH CIRCUMFLEX
+        // U+012F: "į" LATIN SMALL LETTER I WITH OGONEK
+        // U+012B: "ī" LATIN SMALL LETTER I WITH MACRON
+        /* 2 */ "\u00ED,\u00EF,\u00EC,\u00EE,\u012F,\u012B",
+        // U+00F3: "ó" LATIN SMALL LETTER O WITH ACUTE
+        // U+00F2: "ò" LATIN SMALL LETTER O WITH GRAVE
+        // U+00F6: "ö" LATIN SMALL LETTER O WITH DIAERESIS
+        // U+00F4: "ô" LATIN SMALL LETTER O WITH CIRCUMFLEX
+        // U+00F5: "õ" LATIN SMALL LETTER O WITH TILDE
+        // U+00F8: "ø" LATIN SMALL LETTER O WITH STROKE
+        // U+0153: "œ" LATIN SMALL LIGATURE OE
+        // U+014D: "ō" LATIN SMALL LETTER O WITH MACRON
+        // U+00BA: "º" MASCULINE ORDINAL INDICATOR
+        /* 3 */ "\u00F3,\u00F2,\u00F6,\u00F4,\u00F5,\u00F8,\u0153,\u014D,\u00BA",
+        // U+00FA: "ú" LATIN SMALL LETTER U WITH ACUTE
+        // U+00FC: "ü" LATIN SMALL LETTER U WITH DIAERESIS
+        // U+00F9: "ù" LATIN SMALL LETTER U WITH GRAVE
+        // U+00FB: "û" LATIN SMALL LETTER U WITH CIRCUMFLEX
+        // U+016B: "ū" LATIN SMALL LETTER U WITH MACRON
+        /* 4 */ "\u00FA,\u00FC,\u00F9,\u00FB,\u016B",
+        /* 5 */ null,
+        // U+00F1: "ñ" LATIN SMALL LETTER N WITH TILDE
+        // U+0144: "ń" LATIN SMALL LETTER N WITH ACUTE
+        /* 6 */ "\u00F1,\u0144",
+        // U+00E7: "ç" LATIN SMALL LETTER C WITH CEDILLA
+        // U+0107: "ć" LATIN SMALL LETTER C WITH ACUTE
+        // U+010D: "č" LATIN SMALL LETTER C WITH CARON
+        /* 7 */ "\u00E7,\u0107,\u010D",
+    };
+
     /* Language tr: Turkish */
     private static final String[] LANGUAGE_tr = {
         // U+00E2: "â" LATIN SMALL LETTER A WITH CIRCUMFLEX
@@ -2222,20 +2416,23 @@ public final class KeyboardTextsSet {
         /* ~24 */
         // U+0449: "щ" CYRILLIC SMALL LETTER SHCHA
         /* 25 */ "\u0449",
+        // U+0457: "ї" CYRILLIC SMALL LETTER YI
+        /* 26 */ "\u0457",
         // U+0456: "і" CYRILLIC SMALL LETTER BYELORUSSIAN-UKRAINIAN I
-        /* 26 */ "\u0456",
+        /* 27 */ "\u0456",
+        // U+0454: "є" CYRILLIC SMALL LETTER UKRAINIAN IE
+        /* 28 */ "\u0454",
         // U+0438: "и" CYRILLIC SMALL LETTER I
-        /* 27 */ "\u0438",
-        /* 28~ */
-        null, null, null,
-        /* ~30 */
-        // U+044A: "ъ" CYRILLIC SMALL LETTER HARD SIGN
-        /* 31 */ "\u044A",
+        /* 29 */ "\u0438",
+        /* 30 */ null,
+        /* 31 */ null,
+        // U+0491: "ґ" CYRILLIC SMALL LETTER GHE WITH UPTURN
+        /* 32 */ "\u0491",
         // U+0457: "ї" CYRILLIC SMALL LETTER YI
-        /* 32 */ "\u0457",
-        /* 33 */ null,
+        /* 33 */ "\u0457",
+        /* 34 */ null,
         // U+044A: "ъ" CYRILLIC SMALL LETTER HARD SIGN
-        /* 34 */ "\u044A",
+        /* 35 */ "\u044A",
     };
 
     /* Language vi: Vietnamese */
@@ -2319,6 +2516,53 @@ public final class KeyboardTextsSet {
         /* 9 */ "\u0111",
     };
 
+    /* Language zu: Zulu */
+    private static final String[] LANGUAGE_zu = {
+        // This is the same as English
+        // U+00E0: "à" LATIN SMALL LETTER A WITH GRAVE
+        // U+00E1: "á" LATIN SMALL LETTER A WITH ACUTE
+        // U+00E2: "â" LATIN SMALL LETTER A WITH CIRCUMFLEX
+        // U+00E4: "ä" LATIN SMALL LETTER A WITH DIAERESIS
+        // U+00E6: "æ" LATIN SMALL LETTER AE
+        // U+00E3: "ã" LATIN SMALL LETTER A WITH TILDE
+        // U+00E5: "å" LATIN SMALL LETTER A WITH RING ABOVE
+        // U+0101: "ā" LATIN SMALL LETTER A WITH MACRON
+        /* 0 */ "\u00E0,\u00E1,\u00E2,\u00E4,\u00E6,\u00E3,\u00E5,\u0101",
+        // U+00E8: "è" LATIN SMALL LETTER E WITH GRAVE
+        // U+00E9: "é" LATIN SMALL LETTER E WITH ACUTE
+        // U+00EA: "ê" LATIN SMALL LETTER E WITH CIRCUMFLEX
+        // U+00EB: "ë" LATIN SMALL LETTER E WITH DIAERESIS
+        // U+0113: "ē" LATIN SMALL LETTER E WITH MACRON
+        /* 1 */ "\u00E8,\u00E9,\u00EA,\u00EB,\u0113",
+        // U+00EE: "î" LATIN SMALL LETTER I WITH CIRCUMFLEX
+        // U+00EF: "ï" LATIN SMALL LETTER I WITH DIAERESIS
+        // U+00ED: "í" LATIN SMALL LETTER I WITH ACUTE
+        // U+012B: "ī" LATIN SMALL LETTER I WITH MACRON
+        // U+00EC: "ì" LATIN SMALL LETTER I WITH GRAVE
+        /* 2 */ "\u00EE,\u00EF,\u00ED,\u012B,\u00EC",
+        // U+00F4: "ô" LATIN SMALL LETTER O WITH CIRCUMFLEX
+        // U+00F6: "ö" LATIN SMALL LETTER O WITH DIAERESIS
+        // U+00F2: "ò" LATIN SMALL LETTER O WITH GRAVE
+        // U+00F3: "ó" LATIN SMALL LETTER O WITH ACUTE
+        // U+0153: "œ" LATIN SMALL LIGATURE OE
+        // U+00F8: "ø" LATIN SMALL LETTER O WITH STROKE
+        // U+014D: "ō" LATIN SMALL LETTER O WITH MACRON
+        // U+00F5: "õ" LATIN SMALL LETTER O WITH TILDE
+        /* 3 */ "\u00F4,\u00F6,\u00F2,\u00F3,\u0153,\u00F8,\u014D,\u00F5",
+        // U+00FB: "û" LATIN SMALL LETTER U WITH CIRCUMFLEX
+        // U+00FC: "ü" LATIN SMALL LETTER U WITH DIAERESIS
+        // U+00F9: "ù" LATIN SMALL LETTER U WITH GRAVE
+        // U+00FA: "ú" LATIN SMALL LETTER U WITH ACUTE
+        // U+016B: "ū" LATIN SMALL LETTER U WITH MACRON
+        /* 4 */ "\u00FB,\u00FC,\u00F9,\u00FA,\u016B",
+        // U+00DF: "ß" LATIN SMALL LETTER SHARP S
+        /* 5 */ "\u00DF",
+        // U+00F1: "ñ" LATIN SMALL LETTER N WITH TILDE
+        /* 6 */ "\u00F1",
+        // U+00E7: "ç" LATIN SMALL LETTER C WITH CEDILLA
+        /* 7 */ "\u00E7",
+    };
+
     /* Language zz: No language */
     private static final String[] LANGUAGE_zz = {
         // U+00E0: "à" LATIN SMALL LETTER A WITH GRAVE
@@ -2444,6 +2688,7 @@ public final class KeyboardTextsSet {
 
     private static final Object[] LANGUAGES_AND_TEXTS = {
         "DEFAULT", LANGUAGE_DEFAULT, /* default */
+        "af", LANGUAGE_af, /* Afrikaans */
         "ar", LANGUAGE_ar, /* Arabic */
         "be", LANGUAGE_be, /* Belarusian */
         "ca", LANGUAGE_ca, /* Catalan */
@@ -2477,9 +2722,12 @@ public final class KeyboardTextsSet {
         "sl", LANGUAGE_sl, /* Slovenian */
         "sr", LANGUAGE_sr, /* Serbian */
         "sv", LANGUAGE_sv, /* Swedish */
+        "sw", LANGUAGE_sw, /* Swahili */
+        "tl", LANGUAGE_tl, /* Tagalog */
         "tr", LANGUAGE_tr, /* Turkish */
         "uk", LANGUAGE_uk, /* Ukrainian */
         "vi", LANGUAGE_vi, /* Vietnamese */
+        "zu", LANGUAGE_zu, /* Zulu */
         "zz", LANGUAGE_zz, /* No language */
     };
 
diff --git a/java/src/com/android/inputmethod/keyboard/internal/PreviewPlacerView.java b/java/src/com/android/inputmethod/keyboard/internal/PreviewPlacerView.java
new file mode 100644
index 000000000..c38febf49
--- /dev/null
+++ b/java/src/com/android/inputmethod/keyboard/internal/PreviewPlacerView.java
@@ -0,0 +1,185 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.keyboard.internal;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Paint.Align;
+import android.text.TextUtils;
+import android.util.SparseArray;
+import android.widget.RelativeLayout;
+
+import com.android.inputmethod.keyboard.PointerTracker;
+import com.android.inputmethod.latin.R;
+
+public class PreviewPlacerView extends RelativeLayout {
+    private final Paint mGesturePaint;
+    private final Paint mTextPaint;
+    private final int mGestureFloatingPreviewTextColor;
+    private final int mGestureFloatingPreviewTextOffset;
+    private final int mGestureFloatingPreviewTextShadowColor;
+    private final int mGestureFloatingPreviewTextShadowBorder;
+    private final int mGestureFloatingPreviewTextShadingColor;
+    private final int mGestureFloatingPreviewTextShadingBorder;
+    private final int mGestureFloatingPreviewTextConnectorColor;
+    private final int mGestureFloatingPreviewTextConnectorWidth;
+
+    private int mXOrigin;
+    private int mYOrigin;
+
+    private final SparseArray<PointerTracker> mPointers = new SparseArray<PointerTracker>();
+
+    private String mGestureFloatingPreviewText;
+    private boolean mDrawsGesturePreviewTrail;
+    private boolean mDrawsGestureFloatingPreviewText;
+
+    public PreviewPlacerView(Context context, TypedArray keyboardViewAttr) {
+        super(context);
+        setWillNotDraw(false);
+
+        final int gestureFloatingPreviewTextSize = keyboardViewAttr.getDimensionPixelSize(
+                R.styleable.KeyboardView_gestureFloatingPreviewTextSize, 0);
+        mGestureFloatingPreviewTextColor = keyboardViewAttr.getColor(
+                R.styleable.KeyboardView_gestureFloatingPreviewTextColor, 0);
+        mGestureFloatingPreviewTextOffset = keyboardViewAttr.getDimensionPixelOffset(
+                R.styleable.KeyboardView_gestureFloatingPreviewTextOffset, 0);
+        mGestureFloatingPreviewTextShadowColor = keyboardViewAttr.getColor(
+                R.styleable.KeyboardView_gestureFloatingPreviewTextShadowColor, 0);
+        mGestureFloatingPreviewTextShadowBorder = keyboardViewAttr.getDimensionPixelSize(
+                R.styleable.KeyboardView_gestureFloatingPreviewTextShadowBorder, 0);
+        mGestureFloatingPreviewTextShadingColor = keyboardViewAttr.getColor(
+                R.styleable.KeyboardView_gestureFloatingPreviewTextShadingColor, 0);
+        mGestureFloatingPreviewTextShadingBorder = keyboardViewAttr.getDimensionPixelSize(
+                R.styleable.KeyboardView_gestureFloatingPreviewTextShadingBorder, 0);
+        mGestureFloatingPreviewTextConnectorColor = keyboardViewAttr.getColor(
+                R.styleable.KeyboardView_gestureFloatingPreviewTextConnectorColor, 0);
+        mGestureFloatingPreviewTextConnectorWidth = keyboardViewAttr.getDimensionPixelSize(
+                R.styleable.KeyboardView_gestureFloatingPreviewTextConnectorWidth, 0);
+        final int gesturePreviewTrailColor = keyboardViewAttr.getColor(
+                R.styleable.KeyboardView_gesturePreviewTrailColor, 0);
+        final int gesturePreviewTrailWidth = keyboardViewAttr.getDimensionPixelSize(
+                R.styleable.KeyboardView_gesturePreviewTrailWidth, 0);
+
+        mGesturePaint = new Paint();
+        mGesturePaint.setAntiAlias(true);
+        mGesturePaint.setStyle(Paint.Style.STROKE);
+        mGesturePaint.setStrokeJoin(Paint.Join.ROUND);
+        mGesturePaint.setColor(gesturePreviewTrailColor);
+        mGesturePaint.setStrokeWidth(gesturePreviewTrailWidth);
+
+        mTextPaint = new Paint();
+        mTextPaint.setAntiAlias(true);
+        mTextPaint.setStrokeJoin(Paint.Join.ROUND);
+        mTextPaint.setTextAlign(Align.CENTER);
+        mTextPaint.setTextSize(gestureFloatingPreviewTextSize);
+    }
+
+    public void setOrigin(int x, int y) {
+        mXOrigin = x;
+        mYOrigin = y;
+    }
+
+    public void setGesturePreviewMode(boolean drawsGesturePreviewTrail,
+            boolean drawsGestureFloatingPreviewText) {
+        mDrawsGesturePreviewTrail = drawsGesturePreviewTrail;
+        mDrawsGestureFloatingPreviewText = drawsGestureFloatingPreviewText;
+    }
+
+    public void invalidatePointer(PointerTracker tracker) {
+        synchronized (mPointers) {
+            mPointers.put(tracker.mPointerId, tracker);
+            // TODO: Should narrow the invalidate region.
+            invalidate();
+        }
+    }
+
+    @Override
+    public void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+        synchronized (mPointers) {
+            canvas.translate(mXOrigin, mYOrigin);
+            final int trackerCount = mPointers.size();
+            boolean hasDrawnFloatingPreviewText = false;
+            for (int index = 0; index < trackerCount; index++) {
+                final PointerTracker tracker = mPointers.valueAt(index);
+                if (mDrawsGesturePreviewTrail) {
+                    tracker.drawGestureTrail(canvas, mGesturePaint);
+                }
+                // TODO: Figure out more cleaner way to draw gesture preview text.
+                if (mDrawsGestureFloatingPreviewText && !hasDrawnFloatingPreviewText) {
+                    drawGestureFloatingPreviewText(canvas, tracker, mGestureFloatingPreviewText);
+                    hasDrawnFloatingPreviewText = true;
+                }
+            }
+            canvas.translate(-mXOrigin, -mYOrigin);
+        }
+    }
+
+    public void setGestureFloatingPreviewText(String gestureFloatingPreviewText) {
+        mGestureFloatingPreviewText = gestureFloatingPreviewText;
+        invalidate();
+    }
+
+    private void drawGestureFloatingPreviewText(Canvas canvas, PointerTracker tracker,
+            String gestureFloatingPreviewText) {
+        if (TextUtils.isEmpty(gestureFloatingPreviewText)) {
+            return;
+        }
+
+        final Paint paint = mTextPaint;
+        final int lastX = tracker.getLastX();
+        final int lastY = tracker.getLastY();
+        final int textSize = (int)paint.getTextSize();
+        final int canvasWidth = canvas.getWidth();
+
+        final int halfTextWidth = (int)paint.measureText(gestureFloatingPreviewText) / 2 + textSize;
+        final int textX = Math.min(Math.max(lastX, halfTextWidth), canvasWidth - halfTextWidth);
+
+        int textY = Math.max(-textSize, lastY - mGestureFloatingPreviewTextOffset);
+        if (textY < 0) {
+            // Paint black text shadow if preview extends above keyboard region.
+            paint.setStyle(Paint.Style.FILL_AND_STROKE);
+            paint.setColor(mGestureFloatingPreviewTextShadowColor);
+            paint.setStrokeWidth(mGestureFloatingPreviewTextShadowBorder);
+            canvas.drawText(gestureFloatingPreviewText, textX, textY, paint);
+        }
+
+        // Paint the vertical line connecting the touch point to the preview text.
+        paint.setStyle(Paint.Style.STROKE);
+        paint.setColor(mGestureFloatingPreviewTextConnectorColor);
+        paint.setStrokeWidth(mGestureFloatingPreviewTextConnectorWidth);
+        final int lineTopY = textY - textSize / 4;
+        canvas.drawLine(lastX, lastY, lastX, lineTopY, paint);
+        if (lastX != textX) {
+            // Paint the horizontal line connection the touch point to the preview text.
+            canvas.drawLine(lastX, lineTopY, textX, lineTopY, paint);
+        }
+
+        // Paint the shading for the text preview
+        paint.setStyle(Paint.Style.FILL_AND_STROKE);
+        paint.setColor(mGestureFloatingPreviewTextShadingColor);
+        paint.setStrokeWidth(mGestureFloatingPreviewTextShadingBorder);
+        canvas.drawText(gestureFloatingPreviewText, textX, textY, paint);
+
+        // Paint the text preview
+        paint.setColor(mGestureFloatingPreviewTextColor);
+        paint.setStyle(Paint.Style.FILL);
+        canvas.drawText(gestureFloatingPreviewText, textX, textY, paint);
+    }
+}
diff --git a/java/src/com/android/inputmethod/keyboard/SuddenJumpingTouchEventHandler.java b/java/src/com/android/inputmethod/keyboard/internal/SuddenJumpingTouchEventHandler.java
index 2398c0850..9e2cbec52 100644
--- a/java/src/com/android/inputmethod/keyboard/SuddenJumpingTouchEventHandler.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/SuddenJumpingTouchEventHandler.java
@@ -14,12 +14,14 @@
  * the License.
  */
 
-package com.android.inputmethod.keyboard;
+package com.android.inputmethod.keyboard.internal;
 
 import android.content.Context;
 import android.util.Log;
 import android.view.MotionEvent;
 
+import com.android.inputmethod.keyboard.Keyboard;
+import com.android.inputmethod.keyboard.MainKeyboardView;
 import com.android.inputmethod.latin.LatinImeLogger;
 import com.android.inputmethod.latin.R;
 import com.android.inputmethod.latin.Utils;
diff --git a/java/src/com/android/inputmethod/latin/ExpandableDictionary.java b/java/src/com/android/inputmethod/latin/ExpandableDictionary.java
index 5d7995dc2..d101aaf15 100644
--- a/java/src/com/android/inputmethod/latin/ExpandableDictionary.java
+++ b/java/src/com/android/inputmethod/latin/ExpandableDictionary.java
@@ -654,9 +654,12 @@ public class ExpandableDictionary extends Dictionary {
                 --index;
                 mLookedUpString[index] = node.mCode;
                 node = node.mParent;
-            } while (node != null);
+            } while (node != null && index > 0);
 
-            if (freq >= 0) {
+            // If node is null, we have a word longer than MAX_WORD_LENGTH in the dictionary.
+            // It's a little unclear how this can happen, but just in case it does it's safer
+            // to ignore the word in this case.
+            if (freq >= 0 && node == null) {
                 suggestions.add(new SuggestedWordInfo(new String(mLookedUpString, index,
                         BinaryDictionary.MAX_WORD_LENGTH - index),
                         freq, SuggestedWordInfo.KIND_CORRECTION, mDictType));
diff --git a/java/src/com/android/inputmethod/latin/JniUtils.java b/java/src/com/android/inputmethod/latin/JniUtils.java
index 4808b867a..86a3826d8 100644
--- a/java/src/com/android/inputmethod/latin/JniUtils.java
+++ b/java/src/com/android/inputmethod/latin/JniUtils.java
@@ -31,11 +31,7 @@ public class JniUtils {
         try {
             System.loadLibrary(JniLibName.JNI_LIB_NAME);
         } catch (UnsatisfiedLinkError ule) {
-            Log.e(TAG, "Could not load native library " + JniLibName.JNI_LIB_NAME);
-            if (LatinImeLogger.sDBG) {
-                throw new RuntimeException(
-                        "Could not load native library " + JniLibName.JNI_LIB_NAME);
-            }
+            Log.e(TAG, "Could not load native library " + JniLibName.JNI_LIB_NAME, ule);
         }
     }
 }
diff --git a/java/src/com/android/inputmethod/latin/LatinIME.java b/java/src/com/android/inputmethod/latin/LatinIME.java
index d4b59c4cd..a7446695e 100644
--- a/java/src/com/android/inputmethod/latin/LatinIME.java
+++ b/java/src/com/android/inputmethod/latin/LatinIME.java
@@ -60,6 +60,7 @@ import com.android.inputmethod.accessibility.AccessibilityUtils;
 import com.android.inputmethod.accessibility.AccessibleKeyboardViewProxy;
 import com.android.inputmethod.compat.CompatUtils;
 import com.android.inputmethod.compat.InputMethodManagerCompatWrapper;
+import com.android.inputmethod.compat.InputMethodServiceCompatUtils;
 import com.android.inputmethod.compat.SuggestionSpanUtils;
 import com.android.inputmethod.keyboard.KeyDetector;
 import com.android.inputmethod.keyboard.Keyboard;
@@ -82,7 +83,8 @@ import java.util.Locale;
  * Input method implementation for Qwerty'ish keyboard.
  */
 public class LatinIME extends InputMethodService implements KeyboardActionListener,
-        SuggestionStripView.Listener, TargetApplicationGetter.OnTargetApplicationKnownListener {
+        SuggestionStripView.Listener, TargetApplicationGetter.OnTargetApplicationKnownListener,
+        Suggest.SuggestInitializationListener {
     private static final String TAG = LatinIME.class.getSimpleName();
     private static final boolean TRACE = false;
     private static boolean DEBUG;
@@ -174,6 +176,8 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
 
     private AlertDialog mOptionsDialog;
 
+    private final boolean mIsHardwareAcceleratedDrawingEnabled;
+
     public final UIHandler mHandler = new UIHandler(this);
 
     public static class UIHandler extends StaticInnerHandlerWrapper<LatinIME> {
@@ -346,6 +350,9 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         super();
         mSubtypeSwitcher = SubtypeSwitcher.getInstance();
         mKeyboardSwitcher = KeyboardSwitcher.getInstance();
+        mIsHardwareAcceleratedDrawingEnabled =
+                InputMethodServiceCompatUtils.enableHardwareAcceleration(this);
+        Log.i(TAG, "Hardware accelerated drawing: " + mIsHardwareAcceleratedDrawingEnabled);
     }
 
     @Override
@@ -426,6 +433,12 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         resetContactsDictionary(null == mSuggest ? null : mSuggest.getContactsDictionary());
     }
 
+    @Override
+    public void onUpdateMainDictionaryAvailability(boolean isMainDictionaryAvailable) {
+        mIsMainDictionaryAvailable = isMainDictionaryAvailable;
+        updateKeyboardViewGestureHandlingModeByMainDictionaryAvailability();
+    }
+
     private void initSuggest() {
         final Locale subtypeLocale = mSubtypeSwitcher.getCurrentSubtypeLocale();
         final String localeStr = subtypeLocale.toString();
@@ -437,7 +450,8 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         } else {
             oldContactsDictionary = null;
         }
-        mSuggest = new Suggest(this, subtypeLocale);
+        mSuggest = new Suggest(this /* Context */, subtypeLocale,
+                this /* SuggestInitializationListener */);
         if (mCurrentSettings.mCorrectionEnabled) {
             mSuggest.setAutoCorrectionThreshold(mCurrentSettings.mAutoCorrectionThreshold);
         }
@@ -531,15 +545,16 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
             commitTyped(LastComposedWord.NOT_A_SEPARATOR);
             mConnection.finishComposingText();
             mConnection.endBatchEdit();
-            if (isShowingOptionDialog())
+            if (isShowingOptionDialog()) {
                 mOptionsDialog.dismiss();
+            }
         }
         super.onConfigurationChanged(conf);
     }
 
     @Override
     public View onCreateInputView() {
-        return mKeyboardSwitcher.onCreateInputView();
+        return mKeyboardSwitcher.onCreateInputView(mIsHardwareAcceleratedDrawingEnabled);
     }
 
     @Override
@@ -651,40 +666,61 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
             accessUtils.onStartInputViewInternal(editorInfo, restarting);
         }
 
-        mSubtypeSwitcher.updateParametersOnStartInputView();
+        if (!restarting) {
+            mSubtypeSwitcher.updateParametersOnStartInputView();
+        }
 
         // The EditorInfo might have a flag that affects fullscreen mode.
         // Note: This call should be done by InputMethodService?
         updateFullscreenMode();
-        mLastSelectionStart = editorInfo.initialSelStart;
-        mLastSelectionEnd = editorInfo.initialSelEnd;
         mApplicationSpecifiedCompletions = null;
 
-        inputView.closing();
-        mEnteredText = null;
-        resetComposingState(true /* alsoResetLastComposedWord */);
-        mDeleteCount = 0;
-        mSpaceState = SPACE_STATE_NONE;
-
-        loadSettings();
+        final boolean selectionChanged = mLastSelectionStart != editorInfo.initialSelStart
+                || mLastSelectionEnd != editorInfo.initialSelEnd;
+        if (!restarting || selectionChanged) {
+            // If the selection changed, we reset the input state. Essentially, we come here with
+            // restarting == true when the app called setText() or similar. We should reset the
+            // state if the app set the text to something else, but keep it if it set a suggestion
+            // or something.
+            mEnteredText = null;
+            resetComposingState(true /* alsoResetLastComposedWord */);
+            mDeleteCount = 0;
+            mSpaceState = SPACE_STATE_NONE;
 
-        if (mSuggest != null && mCurrentSettings.mCorrectionEnabled) {
-            mSuggest.setAutoCorrectionThreshold(mCurrentSettings.mAutoCorrectionThreshold);
+            if (mSuggestionStripView != null) {
+                mSuggestionStripView.clear();
+            }
         }
 
-        switcher.loadKeyboard(editorInfo, mCurrentSettings);
+        if (!restarting) {
+            inputView.closing();
+            loadSettings();
+
+            if (mSuggest != null && mCurrentSettings.mCorrectionEnabled) {
+                mSuggest.setAutoCorrectionThreshold(mCurrentSettings.mAutoCorrectionThreshold);
+            }
 
-        if (mSuggestionStripView != null)
-            mSuggestionStripView.clear();
+            switcher.loadKeyboard(editorInfo, mCurrentSettings);
+            updateKeyboardViewGestureHandlingModeByMainDictionaryAvailability();
+        }
         setSuggestionStripShownInternal(
                 isSuggestionsStripVisible(), /* needsInputViewShown */ false);
 
+        mLastSelectionStart = editorInfo.initialSelStart;
+        mLastSelectionEnd = editorInfo.initialSelEnd;
+        // If we come here something in the text state is very likely to have changed.
+        // We should update the shift state regardless of whether we are restarting or not, because
+        // this is not perceived as a layout change that may be disruptive like we may have with
+        // switcher.loadKeyboard; in apps like Talk, we come here when the text is sent and the
+        // field gets emptied and we need to re-evaluate the shift state, but not the whole layout
+        // which would be disruptive.
+        mKeyboardSwitcher.updateShiftState();
+
         mHandler.cancelUpdateSuggestionStrip();
         mHandler.cancelDoubleSpacesTimer();
 
         inputView.setKeyPreviewPopupEnabled(mCurrentSettings.mKeyPreviewPopupOn,
                 mCurrentSettings.mKeyPreviewPopupDismissDelay);
-        inputView.setProximityCorrectionEnabled(true);
 
         if (TRACE) Debug.startMethodTracing("/data/trace/latinime");
     }
@@ -856,13 +892,13 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
                 }
             }
         }
-        if (ProductionFlag.IS_EXPERIMENTAL) {
-            ResearchLogger.latinIME_onDisplayCompletions(applicationSpecifiedCompletions);
-        }
         if (!mCurrentSettings.isApplicationSpecifiedCompletionsOn()) return;
         mApplicationSpecifiedCompletions = applicationSpecifiedCompletions;
         if (applicationSpecifiedCompletions == null) {
             clearSuggestionStrip();
+            if (ProductionFlag.IS_EXPERIMENTAL) {
+                ResearchLogger.latinIME_onDisplayCompletions(null);
+            }
             return;
         }
 
@@ -884,6 +920,9 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         // this case? This says to keep whatever the user typed.
         mWordComposer.setAutoCorrection(mWordComposer.getTypedWord());
         setSuggestionStripShown(true);
+        if (ProductionFlag.IS_EXPERIMENTAL) {
+            ResearchLogger.latinIME_onDisplayCompletions(applicationSpecifiedCompletions);
+        }
     }
 
     private void setSuggestionStripShownInternal(boolean shown, boolean needsInputViewShown) {
@@ -1003,15 +1042,11 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         final CharSequence typedWord = mWordComposer.getTypedWord();
         if (typedWord.length() > 0) {
             mConnection.commitText(typedWord, 1);
-            if (ProductionFlag.IS_EXPERIMENTAL) {
-                ResearchLogger.latinIME_commitText(typedWord);
-            }
             final CharSequence prevWord = addToUserHistoryDictionary(typedWord);
             mLastComposedWord = mWordComposer.commitWord(
                     LastComposedWord.COMMIT_TYPE_USER_TYPED_WORD, typedWord.toString(),
                     separatorCode, prevWord);
         }
-        updateSuggestionStrip();
     }
 
     // Called from the KeyboardSwitcher which needs to know auto caps state to display
@@ -1048,12 +1083,9 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         if (lastTwo != null && lastTwo.length() == 2
                 && lastTwo.charAt(0) == Keyboard.CODE_SPACE) {
             mConnection.deleteSurroundingText(2, 0);
-            if (ProductionFlag.IS_EXPERIMENTAL) {
-                ResearchLogger.latinIME_deleteSurroundingText(2);
-            }
             mConnection.commitText(lastTwo.charAt(1) + " ", 1);
             if (ProductionFlag.IS_EXPERIMENTAL) {
-                ResearchLogger.latinIME_swapSwapperAndSpaceWhileInBatchEdit();
+                ResearchLogger.latinIME_swapSwapperAndSpace();
             }
             mKeyboardSwitcher.updateShiftState();
         }
@@ -1070,9 +1102,6 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
             mHandler.cancelDoubleSpacesTimer();
             mConnection.deleteSurroundingText(2, 0);
             mConnection.commitText(". ", 1);
-            if (ProductionFlag.IS_EXPERIMENTAL) {
-                ResearchLogger.latinIME_doubleSpaceAutoPeriod();
-            }
             mKeyboardSwitcher.updateShiftState();
             return true;
         }
@@ -1136,9 +1165,6 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
 
     private void performEditorAction(int actionId) {
         mConnection.performEditorAction(actionId);
-        if (ProductionFlag.IS_EXPERIMENTAL) {
-            ResearchLogger.latinIME_performEditorAction(actionId);
-        }
     }
 
     private void handleLanguageSwitchKey() {
@@ -1175,6 +1201,9 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         // For backward compatibility. See {@link InputMethodService#sendKeyChar(char)}.
         if (code >= '0' && code <= '9') {
             super.sendKeyChar((char)code);
+            if (ProductionFlag.IS_EXPERIMENTAL) {
+                ResearchLogger.latinIME_sendKeyCodePoint(code);
+            }
             return;
         }
 
@@ -1191,9 +1220,6 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
             final String text = new String(new int[] { code }, 0, 1);
             mConnection.commitText(text, text.length());
         }
-        if (ProductionFlag.IS_EXPERIMENTAL) {
-            ResearchLogger.latinIME_sendKeyCodePoint(code);
-        }
     }
 
     // Implementation of {@link KeyboardActionListener}.
@@ -1205,11 +1231,6 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         }
         mLastKeyTime = when;
         mConnection.beginBatchEdit();
-
-        if (ProductionFlag.IS_EXPERIMENTAL) {
-            ResearchLogger.latinIME_onCodeInput(primaryCode, x, y);
-        }
-
         final KeyboardSwitcher switcher = mKeyboardSwitcher;
         // The space state depends only on the last character pressed and its own previous
         // state. Here, we revert the space state to neutral if the key is actually modifying
@@ -1291,21 +1312,22 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
             mLastComposedWord.deactivate();
         mEnteredText = null;
         mConnection.endBatchEdit();
+        if (ProductionFlag.IS_EXPERIMENTAL) {
+            ResearchLogger.latinIME_onCodeInput(primaryCode, x, y);
+        }
     }
 
     // Called from PointerTracker through the KeyboardActionListener interface
     @Override
-    public void onTextInput(CharSequence text) {
+    public void onTextInput(CharSequence rawText) {
         mConnection.beginBatchEdit();
         commitTyped(LastComposedWord.NOT_A_SEPARATOR);
-        text = specificTldProcessingOnTextInput(text);
+        mHandler.postUpdateSuggestionStrip();
+        final CharSequence text = specificTldProcessingOnTextInput(rawText);
         if (SPACE_STATE_PHANTOM == mSpaceState) {
             sendKeyCodePoint(Keyboard.CODE_SPACE);
         }
         mConnection.commitText(text, 1);
-        if (ProductionFlag.IS_EXPERIMENTAL) {
-            ResearchLogger.latinIME_commitText(text);
-        }
         mConnection.endBatchEdit();
         mKeyboardSwitcher.updateShiftState();
         mKeyboardSwitcher.onCodeInput(Keyboard.CODE_OUTPUT_TEXT);
@@ -1334,6 +1356,10 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         mWordComposer.setBatchInputPointers(batchPointers);
         final SuggestedWords suggestedWords = getSuggestedWords();
         showSuggestionStrip(suggestedWords, null);
+        final String gestureFloatingPreviewText = (suggestedWords.size() > 0)
+                ? suggestedWords.getWord(0) : null;
+        mKeyboardSwitcher.getKeyboardView()
+                .showGestureFloatingPreviewText(gestureFloatingPreviewText);
     }
 
     @Override
@@ -1341,6 +1367,7 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         mWordComposer.setBatchInputPointers(batchPointers);
         final SuggestedWords suggestedWords = getSuggestedWords();
         showSuggestionStrip(suggestedWords, null);
+        mKeyboardSwitcher.getKeyboardView().showGestureFloatingPreviewText(null);
         if (suggestedWords == null || suggestedWords.size() == 0) {
             return;
         }
@@ -1395,9 +1422,6 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
             // like the smiley key or the .com key.
             final int length = mEnteredText.length();
             mConnection.deleteSurroundingText(length, 0);
-            if (ProductionFlag.IS_EXPERIMENTAL) {
-                ResearchLogger.latinIME_deleteSurroundingText(length);
-            }
             // If we have mEnteredText, then we know that mHasUncommittedTypedChars == false.
             // In addition we know that spaceState is false, and that we should not be
             // reverting any autocorrect at this point. So we can safely return.
@@ -1417,9 +1441,6 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
                 mHandler.postUpdateSuggestionStrip();
             } else {
                 mConnection.deleteSurroundingText(1, 0);
-                if (ProductionFlag.IS_EXPERIMENTAL) {
-                    ResearchLogger.latinIME_deleteSurroundingText(1);
-                }
             }
         } else {
             if (mLastComposedWord.canRevertCommit()) {
@@ -1448,9 +1469,6 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
                 final int lengthToDelete = mLastSelectionEnd - mLastSelectionStart;
                 mConnection.setSelection(mLastSelectionEnd, mLastSelectionEnd);
                 mConnection.deleteSurroundingText(lengthToDelete, 0);
-                if (ProductionFlag.IS_EXPERIMENTAL) {
-                    ResearchLogger.latinIME_deleteSurroundingText(lengthToDelete);
-                }
             } else {
                 // There is no selection, just delete one character.
                 if (NOT_A_CURSOR_POSITION == mLastSelectionEnd) {
@@ -1469,14 +1487,8 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
                 } else {
                     mConnection.deleteSurroundingText(1, 0);
                 }
-                if (ProductionFlag.IS_EXPERIMENTAL) {
-                    ResearchLogger.latinIME_deleteSurroundingText(1);
-                }
                 if (mDeleteCount > DELETE_ACCELERATE_AT) {
                     mConnection.deleteSurroundingText(1, 0);
-                    if (ProductionFlag.IS_EXPERIMENTAL) {
-                        ResearchLogger.latinIME_deleteSurroundingText(1);
-                    }
                 }
             }
             if (mCurrentSettings.isSuggestionsRequested(mDisplayOrientation)) {
@@ -1579,11 +1591,7 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         boolean didAutoCorrect = false;
         // Handle separator
         if (mWordComposer.isComposingWord()) {
-            // In certain languages where single quote is a separator, it's better
-            // not to auto correct, but accept the typed word. For instance,
-            // in Italian dov' should not be expanded to dove' because the elision
-            // requires the last vowel to be removed.
-            if (mCurrentSettings.mCorrectionEnabled && primaryCode != Keyboard.CODE_SINGLE_QUOTE) {
+            if (mCurrentSettings.mCorrectionEnabled) {
                 commitCurrentAutoCorrection(primaryCode);
                 didAutoCorrect = true;
             } else {
@@ -1617,13 +1625,18 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
             if (swapWeakSpace) {
                 swapSwapperAndSpace();
                 mSpaceState = SPACE_STATE_SWAP_PUNCTUATION;
-            } else if (SPACE_STATE_PHANTOM == spaceState) {
+            } else if (SPACE_STATE_PHANTOM == spaceState
+                    && !mCurrentSettings.isWeakSpaceStripper(primaryCode)) {
                 // If we are in phantom space state, and the user presses a separator, we want to
                 // stay in phantom space state so that the next keypress has a chance to add the
                 // space. For example, if I type "Good dat", pick "day" from the suggestion strip
                 // then insert a comma and go on to typing the next word, I want the space to be
                 // inserted automatically before the next word, the same way it is when I don't
                 // input the comma.
+                // The case is a little different if the separator is a space stripper. Such a
+                // separator does not normally need a space on the right (that's the difference
+                // between swappers and strippers), so we should not stay in phantom space state if
+                // the separator is a stripper. Hence the additional test above.
                 mSpaceState = SPACE_STATE_PHANTOM;
             }
 
@@ -1647,8 +1660,9 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         commitTyped(LastComposedWord.NOT_A_SEPARATOR);
         requestHideSelf(0);
         MainKeyboardView inputView = mKeyboardSwitcher.getKeyboardView();
-        if (inputView != null)
+        if (inputView != null) {
             inputView.closing();
+        }
     }
 
     // TODO: make this private
@@ -1799,10 +1813,6 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
                         + "is empty? Impossible! I must commit suicide.");
             }
             Utils.Stats.onAutoCorrection(typedWord, autoCorrection.toString(), separatorCodePoint);
-            if (ProductionFlag.IS_EXPERIMENTAL) {
-                ResearchLogger.latinIME_commitCurrentAutoCorrection(typedWord,
-                        autoCorrection.toString());
-            }
             mExpectingUpdateSelection = true;
             commitChosenWord(autoCorrection, LastComposedWord.COMMIT_TYPE_DECIDED_WORD,
                     separatorCodePoint);
@@ -1828,13 +1838,13 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
             // So, LatinImeLogger logs "" as a user's input.
             LatinImeLogger.logOnManualSuggestion("", suggestion.toString(), index, suggestedWords);
             // Rely on onCodeInput to do the complicated swapping/stripping logic consistently.
-            if (ProductionFlag.IS_EXPERIMENTAL) {
-                ResearchLogger.latinIME_punctuationSuggestion(index, suggestion, x, y);
-            }
             final int primaryCode = suggestion.charAt(0);
             onCodeInput(primaryCode,
                     KeyboardActionListener.SUGGESTION_STRIP_COORDINATE,
                     KeyboardActionListener.SUGGESTION_STRIP_COORDINATE);
+            if (ProductionFlag.IS_EXPERIMENTAL) {
+                ResearchLogger.latinIME_punctuationSuggestion(index, suggestion, x, y);
+            }
             return;
         }
 
@@ -1861,10 +1871,6 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
             final CompletionInfo completionInfo = mApplicationSpecifiedCompletions[index];
             mConnection.commitCompletion(completionInfo);
             mConnection.endBatchEdit();
-            if (ProductionFlag.IS_EXPERIMENTAL) {
-                ResearchLogger.latinIME_pickApplicationSpecifiedCompletion(index,
-                        completionInfo.getText(), x, y);
-            }
             return;
         }
 
@@ -1873,12 +1879,12 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         final String replacedWord = mWordComposer.getTypedWord().toString();
         LatinImeLogger.logOnManualSuggestion(replacedWord,
                 suggestion.toString(), index, suggestedWords);
-        if (ProductionFlag.IS_EXPERIMENTAL) {
-            ResearchLogger.latinIME_pickSuggestionManually(replacedWord, index, suggestion, x, y);
-        }
         mExpectingUpdateSelection = true;
         commitChosenWord(suggestion, LastComposedWord.COMMIT_TYPE_MANUAL_PICK,
                 LastComposedWord.NOT_A_SEPARATOR);
+        if (ProductionFlag.IS_EXPERIMENTAL) {
+            ResearchLogger.latinIME_pickSuggestionManually(replacedWord, index, suggestion, x, y);
+        }
         mConnection.endBatchEdit();
         // Don't allow cancellation of manual pick
         mLastComposedWord.deactivate();
@@ -1913,9 +1919,6 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         final SuggestedWords suggestedWords = mSuggestionStripView.getSuggestions();
         mConnection.commitText(SuggestionSpanUtils.getTextWithSuggestionSpan(
                 this, chosenWord, suggestedWords, mIsMainDictionaryAvailable), 1);
-        if (ProductionFlag.IS_EXPERIMENTAL) {
-            ResearchLogger.latinIME_commitText(chosenWord);
-        }
         // Add the word to the user history dictionary
         final CharSequence prevWord = addToUserHistoryDictionary(chosenWord);
         // TODO: figure out here if this is an auto-correct or if the best word is actually
@@ -1982,9 +1985,6 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         mWordComposer.setComposingWord(word, mKeyboardSwitcher.getKeyboard());
         final int length = word.length();
         mConnection.deleteSurroundingText(length, 0);
-        if (ProductionFlag.IS_EXPERIMENTAL) {
-            ResearchLogger.latinIME_deleteSurroundingText(length);
-        }
         mConnection.setComposingText(word, 1);
         mHandler.postUpdateSuggestionStrip();
     }
@@ -2012,9 +2012,6 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
             }
         }
         mConnection.deleteSurroundingText(deleteLength, 0);
-        if (ProductionFlag.IS_EXPERIMENTAL) {
-            ResearchLogger.latinIME_deleteSurroundingText(deleteLength);
-        }
         if (!TextUtils.isEmpty(previousWord) && !TextUtils.isEmpty(committedWord)) {
             mUserHistoryDictionary.cancelAddingUserHistory(
                     previousWord.toString(), committedWord.toString());
@@ -2044,18 +2041,30 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
     public void onRefreshKeyboard() {
         // When the device locale is changed in SetupWizard etc., this method may get called via
         // onConfigurationChanged before SoftInputWindow is shown.
+        initSuggest();
+        loadSettings();
         if (mKeyboardSwitcher.getKeyboardView() != null) {
             // Reload keyboard because the current language has been changed.
             mKeyboardSwitcher.loadKeyboard(getCurrentInputEditorInfo(), mCurrentSettings);
+            updateKeyboardViewGestureHandlingModeByMainDictionaryAvailability();
         }
-        initSuggest();
-        loadSettings();
         // Since we just changed languages, we should re-evaluate suggestions with whatever word
         // we are currently composing. If we are not composing anything, we may want to display
         // predictions or punctuation signs (which is done by the updateSuggestionStrip anyway).
         mHandler.postUpdateSuggestionStrip();
     }
 
+    private void updateKeyboardViewGestureHandlingModeByMainDictionaryAvailability() {
+        final MainKeyboardView keyboardView = mKeyboardSwitcher.getKeyboardView();
+        if (keyboardView != null) {
+            final boolean shouldHandleGesture = mCurrentSettings.mGestureInputEnabled
+                    && mIsMainDictionaryAvailable;
+            keyboardView.setGestureHandlingMode(shouldHandleGesture,
+                    mCurrentSettings.mGesturePreviewTrailEnabled,
+                    mCurrentSettings.mGestureFloatingPreviewTextEnabled);
+        }
+    }
+
     // TODO: Remove this method from {@link LatinIME} and move {@link FeedbackManager} to
     // {@link KeyboardSwitcher}. Called from KeyboardSwitcher
     public void hapticAndAudioFeedback(final int primaryCode) {
diff --git a/java/src/com/android/inputmethod/latin/RichInputConnection.java b/java/src/com/android/inputmethod/latin/RichInputConnection.java
index 8b4c17322..41e59e92d 100644
--- a/java/src/com/android/inputmethod/latin/RichInputConnection.java
+++ b/java/src/com/android/inputmethod/latin/RichInputConnection.java
@@ -55,7 +55,9 @@ public class RichInputConnection {
     public void beginBatchEdit() {
         if (++mNestLevel == 1) {
             mIC = mParent.getCurrentInputConnection();
-            if (null != mIC) mIC.beginBatchEdit();
+            if (null != mIC) {
+                mIC.beginBatchEdit();
+            }
         } else {
             if (DBG) {
                 throw new RuntimeException("Nest level too deep");
@@ -66,7 +68,9 @@ public class RichInputConnection {
     }
     public void endBatchEdit() {
         if (mNestLevel <= 0) Log.e(TAG, "Batch edit not in progress!"); // TODO: exception instead
-        if (--mNestLevel == 0 && null != mIC) mIC.endBatchEdit();
+        if (--mNestLevel == 0 && null != mIC) {
+            mIC.endBatchEdit();
+        }
     }
 
     private void checkBatchEdit() {
@@ -79,12 +83,22 @@ public class RichInputConnection {
 
     public void finishComposingText() {
         checkBatchEdit();
-        if (null != mIC) mIC.finishComposingText();
+        if (null != mIC) {
+            mIC.finishComposingText();
+            if (ProductionFlag.IS_EXPERIMENTAL) {
+                ResearchLogger.richInputConnection_finishComposingText();
+            }
+        }
     }
 
     public void commitText(final CharSequence text, final int i) {
         checkBatchEdit();
-        if (null != mIC) mIC.commitText(text, i);
+        if (null != mIC) {
+            mIC.commitText(text, i);
+            if (ProductionFlag.IS_EXPERIMENTAL) {
+                ResearchLogger.richInputConnection_commitText(text, i);
+            }
+        }
     }
 
     public int getCursorCapsMode(final int inputType) {
@@ -107,37 +121,72 @@ public class RichInputConnection {
 
     public void deleteSurroundingText(final int i, final int j) {
         checkBatchEdit();
-        if (null != mIC) mIC.deleteSurroundingText(i, j);
+        if (null != mIC) {
+            mIC.deleteSurroundingText(i, j);
+            if (ProductionFlag.IS_EXPERIMENTAL) {
+                ResearchLogger.richInputConnection_deleteSurroundingText(i, j);
+            }
+        }
     }
 
     public void performEditorAction(final int actionId) {
         mIC = mParent.getCurrentInputConnection();
-        if (null != mIC) mIC.performEditorAction(actionId);
+        if (null != mIC) {
+            mIC.performEditorAction(actionId);
+            if (ProductionFlag.IS_EXPERIMENTAL) {
+                ResearchLogger.richInputConnection_performEditorAction(actionId);
+            }
+        }
     }
 
     public void sendKeyEvent(final KeyEvent keyEvent) {
         checkBatchEdit();
-        if (null != mIC) mIC.sendKeyEvent(keyEvent);
+        if (null != mIC) {
+            mIC.sendKeyEvent(keyEvent);
+            if (ProductionFlag.IS_EXPERIMENTAL) {
+                ResearchLogger.richInputConnection_sendKeyEvent(keyEvent);
+            }
+        }
     }
 
     public void setComposingText(final CharSequence text, final int i) {
         checkBatchEdit();
-        if (null != mIC) mIC.setComposingText(text, i);
+        if (null != mIC) {
+            mIC.setComposingText(text, i);
+            if (ProductionFlag.IS_EXPERIMENTAL) {
+                ResearchLogger.richInputConnection_setComposingText(text, i);
+            }
+        }
     }
 
     public void setSelection(final int from, final int to) {
         checkBatchEdit();
-        if (null != mIC) mIC.setSelection(from, to);
+        if (null != mIC) {
+            mIC.setSelection(from, to);
+            if (ProductionFlag.IS_EXPERIMENTAL) {
+                ResearchLogger.richInputConnection_setSelection(from, to);
+            }
+        }
     }
 
     public void commitCorrection(final CorrectionInfo correctionInfo) {
         checkBatchEdit();
-        if (null != mIC) mIC.commitCorrection(correctionInfo);
+        if (null != mIC) {
+            mIC.commitCorrection(correctionInfo);
+            if (ProductionFlag.IS_EXPERIMENTAL) {
+                ResearchLogger.richInputConnection_commitCorrection(correctionInfo);
+            }
+        }
     }
 
     public void commitCompletion(final CompletionInfo completionInfo) {
         checkBatchEdit();
-        if (null != mIC) mIC.commitCompletion(completionInfo);
+        if (null != mIC) {
+            mIC.commitCompletion(completionInfo);
+            if (ProductionFlag.IS_EXPERIMENTAL) {
+                ResearchLogger.richInputConnection_commitCompletion(completionInfo);
+            }
+        }
     }
 
     public CharSequence getNthPreviousWord(final String sentenceSeperators, final int n) {
@@ -315,9 +364,6 @@ public class RichInputConnection {
         if (lastOne != null && lastOne.length() == 1
                 && lastOne.charAt(0) == Keyboard.CODE_SPACE) {
             deleteSurroundingText(1, 0);
-            if (ProductionFlag.IS_EXPERIMENTAL) {
-                ResearchLogger.latinIME_deleteSurroundingText(1);
-            }
         }
     }
 
@@ -382,13 +428,7 @@ public class RichInputConnection {
             return false;
         }
         deleteSurroundingText(2, 0);
-        if (ProductionFlag.IS_EXPERIMENTAL) {
-            ResearchLogger.latinIME_deleteSurroundingText(2);
-        }
         commitText("  ", 1);
-        if (ProductionFlag.IS_EXPERIMENTAL) {
-            ResearchLogger.latinIME_revertDoubleSpaceWhileInBatchEdit();
-        }
         return true;
     }
 
@@ -409,13 +449,7 @@ public class RichInputConnection {
             return false;
         }
         deleteSurroundingText(2, 0);
-        if (ProductionFlag.IS_EXPERIMENTAL) {
-            ResearchLogger.latinIME_deleteSurroundingText(2);
-        }
         commitText(" " + textBeforeCursor.subSequence(0, 1), 1);
-        if (ProductionFlag.IS_EXPERIMENTAL) {
-            ResearchLogger.latinIME_revertSwapPunctuation();
-        }
         return true;
     }
 }
diff --git a/java/src/com/android/inputmethod/latin/Settings.java b/java/src/com/android/inputmethod/latin/Settings.java
index 45608f439..6251c9acd 100644
--- a/java/src/com/android/inputmethod/latin/Settings.java
+++ b/java/src/com/android/inputmethod/latin/Settings.java
@@ -62,6 +62,7 @@ public class Settings extends InputMethodSettingsFragment
     public static final String PREF_LAST_USER_DICTIONARY_WRITE_TIME =
             "last_user_dictionary_write_time";
     public static final String PREF_ADVANCED_SETTINGS = "pref_advanced_settings";
+    public static final String PREF_KEY_USE_CONTACTS_DICT = "pref_key_use_contacts_dict";
     public static final String PREF_SUPPRESS_LANGUAGE_SWITCH_KEY =
             "pref_suppress_language_switch_key";
     public static final String PREF_INCLUDE_OTHER_IMES_IN_LANGUAGE_SWITCH_LIST =
@@ -69,13 +70,15 @@ public class Settings extends InputMethodSettingsFragment
     public static final String PREF_CUSTOM_INPUT_STYLES = "custom_input_styles";
     public static final String PREF_KEY_PREVIEW_POPUP_DISMISS_DELAY =
             "pref_key_preview_popup_dismiss_delay";
-    public static final String PREF_KEY_USE_CONTACTS_DICT = "pref_key_use_contacts_dict";
     public static final String PREF_BIGRAM_PREDICTIONS = "next_word_prediction";
     public static final String PREF_GESTURE_INPUT = "gesture_input";
     public static final String PREF_VIBRATION_DURATION_SETTINGS =
             "pref_vibration_duration_settings";
     public static final String PREF_KEYPRESS_SOUND_VOLUME =
             "pref_keypress_sound_volume";
+    public static final String PREF_GESTURE_PREVIEW_TRAIL = "pref_gesture_preview_trail";
+    public static final String PREF_GESTURE_FLOATING_PREVIEW_TEXT =
+            "pref_gesture_floating_preview_text";
 
     public static final String PREF_INPUT_LANGUAGE = "input_language";
     public static final String PREF_SELECTED_LANGUAGES = "selected_languages";
@@ -94,13 +97,17 @@ public class Settings extends InputMethodSettingsFragment
     private TextView mKeypressVibrationDurationSettingsTextView;
     private TextView mKeypressSoundVolumeSettingsTextView;
 
+    private static void setPreferenceEnabled(Preference preference, boolean enabled) {
+        if (preference != null) {
+            preference.setEnabled(enabled);
+        }
+    }
+
     private void ensureConsistencyOfAutoCorrectionSettings() {
         final String autoCorrectionOff = getResources().getString(
                 R.string.auto_correction_threshold_mode_index_off);
         final String currentSetting = mAutoCorrectionThresholdPreference.getValue();
-        if (null != mBigramPrediction) {
-            mBigramPrediction.setEnabled(!currentSetting.equals(autoCorrectionOff));
-        }
+        setPreferenceEnabled(mBigramPrediction, !currentSetting.equals(autoCorrectionOff));
     }
 
     @Override
@@ -180,13 +187,11 @@ public class Settings extends InputMethodSettingsFragment
             if (null == mKeyPreviewPopupDismissDelay.getValue()) {
                 mKeyPreviewPopupDismissDelay.setValue(popupDismissDelayDefaultValue);
             }
-            mKeyPreviewPopupDismissDelay.setEnabled(
+            setPreferenceEnabled(mKeyPreviewPopupDismissDelay,
                     SettingsValues.isKeyPreviewPopupEnabled(prefs, res));
         }
 
-        final CheckBoxPreference includeOtherImesInLanguageSwitchList =
-                (CheckBoxPreference)findPreference(PREF_INCLUDE_OTHER_IMES_IN_LANGUAGE_SWITCH_LIST);
-        includeOtherImesInLanguageSwitchList.setEnabled(
+        setPreferenceEnabled(findPreference(PREF_INCLUDE_OTHER_IMES_IN_LANGUAGE_SWITCH_LIST),
                 !SettingsValues.isLanguageSwitchKeySupressed(prefs));
 
         final PreferenceScreen dictionaryLink =
@@ -200,10 +205,19 @@ public class Settings extends InputMethodSettingsFragment
 
         final boolean gestureInputEnabledByBuildConfig = res.getBoolean(
                 R.bool.config_gesture_input_enabled_by_build_config);
+        final Preference gesturePreviewTrail = findPreference(PREF_GESTURE_PREVIEW_TRAIL);
+        final Preference gestureFloatingPreviewText = findPreference(
+                PREF_GESTURE_FLOATING_PREVIEW_TEXT);
         if (!gestureInputEnabledByBuildConfig) {
-            final Preference gestureInputPref = findPreference(PREF_GESTURE_INPUT);
-            miscSettings.removePreference(gestureInputPref);
+            miscSettings.removePreference(findPreference(PREF_GESTURE_INPUT));
+            miscSettings.removePreference(gesturePreviewTrail);
+            miscSettings.removePreference(gestureFloatingPreviewText);
+        } else {
+            final boolean gestureInputEnabledByUser = prefs.getBoolean(PREF_GESTURE_INPUT, true);
+            setPreferenceEnabled(gesturePreviewTrail, gestureInputEnabledByUser);
+            setPreferenceEnabled(gestureFloatingPreviewText, gestureInputEnabledByUser);
         }
+
         final boolean showUsabilityStudyModeOption =
                 res.getBoolean(R.bool.config_enable_usability_study_mode_option)
                         || ProductionFlag.IS_EXPERIMENTAL || ENABLE_EXPERIMENTAL_SETTINGS;
@@ -277,17 +291,22 @@ public class Settings extends InputMethodSettingsFragment
     public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
         (new BackupManager(getActivity())).dataChanged();
         if (key.equals(PREF_POPUP_ON)) {
-            final ListPreference popupDismissDelay =
-                (ListPreference)findPreference(PREF_KEY_PREVIEW_POPUP_DISMISS_DELAY);
-            if (null != popupDismissDelay) {
-                popupDismissDelay.setEnabled(prefs.getBoolean(PREF_POPUP_ON, true));
-            }
+            setPreferenceEnabled(findPreference(PREF_KEY_PREVIEW_POPUP_DISMISS_DELAY),
+                    prefs.getBoolean(PREF_POPUP_ON, true));
         } else if (key.equals(PREF_SUPPRESS_LANGUAGE_SWITCH_KEY)) {
-            final CheckBoxPreference includeOtherImesInLanguageSwicthList =
-                    (CheckBoxPreference)findPreference(
-                            PREF_INCLUDE_OTHER_IMES_IN_LANGUAGE_SWITCH_LIST);
-            includeOtherImesInLanguageSwicthList.setEnabled(
+            setPreferenceEnabled(findPreference(PREF_INCLUDE_OTHER_IMES_IN_LANGUAGE_SWITCH_LIST),
                     !SettingsValues.isLanguageSwitchKeySupressed(prefs));
+        } else if (key.equals(PREF_GESTURE_INPUT)) {
+            final boolean gestureInputEnabledByConfig = getResources().getBoolean(
+                    R.bool.config_gesture_input_enabled_by_build_config);
+            if (gestureInputEnabledByConfig) {
+                final boolean gestureInputEnabledByUser = prefs.getBoolean(
+                        PREF_GESTURE_INPUT, true);
+                setPreferenceEnabled(findPreference(PREF_GESTURE_PREVIEW_TRAIL),
+                        gestureInputEnabledByUser);
+                setPreferenceEnabled(findPreference(PREF_GESTURE_FLOATING_PREVIEW_TEXT),
+                        gestureInputEnabledByUser);
+            }
         }
         ensureConsistencyOfAutoCorrectionSettings();
         updateVoiceModeSummary();
@@ -335,16 +354,18 @@ public class Settings extends InputMethodSettingsFragment
     private void refreshEnablingsOfKeypressSoundAndVibrationSettings(
             SharedPreferences sp, Resources res) {
         if (mKeypressVibrationDurationSettingsPref != null) {
-            final boolean hasVibrator = VibratorUtils.getInstance(getActivity()).hasVibrator();
-            final boolean vibrateOn = hasVibrator && sp.getBoolean(Settings.PREF_VIBRATE_ON,
+            final boolean hasVibratorHardware = VibratorUtils.getInstance(getActivity())
+                    .hasVibrator();
+            final boolean vibrateOnByUser = sp.getBoolean(Settings.PREF_VIBRATE_ON,
                     res.getBoolean(R.bool.config_default_vibration_enabled));
-            mKeypressVibrationDurationSettingsPref.setEnabled(vibrateOn);
+            setPreferenceEnabled(mKeypressVibrationDurationSettingsPref,
+                    hasVibratorHardware && vibrateOnByUser);
         }
 
         if (mKeypressSoundVolumeSettingsPref != null) {
             final boolean soundOn = sp.getBoolean(Settings.PREF_SOUND_ON,
                     res.getBoolean(R.bool.config_default_sound_enabled));
-            mKeypressSoundVolumeSettingsPref.setEnabled(soundOn);
+            setPreferenceEnabled(mKeypressSoundVolumeSettingsPref, soundOn);
         }
     }
 
diff --git a/java/src/com/android/inputmethod/latin/SettingsValues.java b/java/src/com/android/inputmethod/latin/SettingsValues.java
index 3ed981375..0843bdbbc 100644
--- a/java/src/com/android/inputmethod/latin/SettingsValues.java
+++ b/java/src/com/android/inputmethod/latin/SettingsValues.java
@@ -84,6 +84,8 @@ public class SettingsValues {
     private final float mKeypressSoundVolumeRawValue;
     private final InputMethodSubtype[] mAdditionalSubtypes;
     public final boolean mGestureInputEnabled;
+    public final boolean mGesturePreviewTrailEnabled;
+    public final boolean mGestureFloatingPreviewTextEnabled;
 
     // From the input box
     private final InputAttributes mInputAttributes;
@@ -174,6 +176,9 @@ public class SettingsValues {
                 R.bool.config_gesture_input_enabled_by_build_config);
         mGestureInputEnabled = gestureInputEnabledByBuildConfig
                 && prefs.getBoolean(Settings.PREF_GESTURE_INPUT, true);
+        mGesturePreviewTrailEnabled = prefs.getBoolean(Settings.PREF_GESTURE_PREVIEW_TRAIL, true);
+        mGestureFloatingPreviewTextEnabled = prefs.getBoolean(
+                Settings.PREF_GESTURE_FLOATING_PREVIEW_TEXT, true);
         mCorrectionEnabled = mAutoCorrectEnabled && !mInputAttributes.mInputTypeNoAutoCorrect;
         mSuggestionVisibility = createSuggestionVisibility(res);
     }
diff --git a/java/src/com/android/inputmethod/latin/Suggest.java b/java/src/com/android/inputmethod/latin/Suggest.java
index 598ef1de7..5e2a04124 100644
--- a/java/src/com/android/inputmethod/latin/Suggest.java
+++ b/java/src/com/android/inputmethod/latin/Suggest.java
@@ -42,6 +42,10 @@ public class Suggest {
     // TODO: rename this to CORRECTION_ON
     public static final int CORRECTION_FULL = 1;
 
+    public interface SuggestInitializationListener {
+        public void onUpdateMainDictionaryAvailability(boolean isMainDictionaryAvailable);
+    }
+
     private static final boolean DBG = LatinImeLogger.sDBG;
 
     private Dictionary mMainDictionary;
@@ -55,11 +59,14 @@ public class Suggest {
     private float mAutoCorrectionThreshold;
 
     // Locale used for upper- and title-casing words
-    final private Locale mLocale;
+    private final Locale mLocale;
+    private final SuggestInitializationListener mListener;
 
-    public Suggest(final Context context, final Locale locale) {
+    public Suggest(final Context context, final Locale locale,
+            final SuggestInitializationListener listener) {
         initAsynchronously(context, locale);
         mLocale = locale;
+        mListener = listener;
     }
 
     /* package for test */ Suggest(final Context context, final File dictionary,
@@ -67,6 +74,7 @@ public class Suggest {
         final Dictionary mainDict = DictionaryFactory.createDictionaryForTest(context, dictionary,
                 startOffset, length /* useFullEditDistance */, false, locale);
         mLocale = locale;
+        mListener = null;
         mMainDictionary = mainDict;
         addOrReplaceDictionary(mDictionaries, Dictionary.TYPE_MAIN, mainDict);
         initWhitelistAndAutocorrectAndPool(context, locale);
@@ -98,6 +106,9 @@ public class Suggest {
 
     public void resetMainDict(final Context context, final Locale locale) {
         mMainDictionary = null;
+        if (mListener != null) {
+            mListener.onUpdateMainDictionaryAvailability(hasMainDictionary());
+        }
         new Thread("InitializeBinaryDictionary") {
             @Override
             public void run() {
@@ -105,6 +116,9 @@ public class Suggest {
                         DictionaryFactory.createMainDictionaryFromManager(context, locale);
                 addOrReplaceDictionary(mDictionaries, Dictionary.TYPE_MAIN, newMainDict);
                 mMainDictionary = newMainDict;
+                if (mListener != null) {
+                    mListener.onUpdateMainDictionaryAvailability(hasMainDictionary());
+                }
             }
         }.start();
     }
@@ -219,7 +233,7 @@ public class Suggest {
         // the current settings. It may also be useful to know, when the setting is off, whether
         // the word *would* have been auto-corrected.
         if (!isCorrectionEnabled || !allowsToBeAutoCorrected || !wordComposer.isComposingWord()
-                || suggestionsSet.isEmpty()
+                || suggestionsSet.isEmpty() || wordComposer.hasDigits()
                 || wordComposer.isMostlyCaps() || wordComposer.isResumed()
                 || !hasMainDictionary()) {
             // If we don't have a main dictionary, we never want to auto-correct. The reason for
diff --git a/java/src/com/android/inputmethod/latin/WordComposer.java b/java/src/com/android/inputmethod/latin/WordComposer.java
index 6d346d179..5606a58e4 100644
--- a/java/src/com/android/inputmethod/latin/WordComposer.java
+++ b/java/src/com/android/inputmethod/latin/WordComposer.java
@@ -41,6 +41,7 @@ public class WordComposer {
 
     // Cache these values for performance
     private int mCapsCount;
+    private int mDigitsCount;
     private boolean mAutoCapitalized;
     private int mTrailingSingleQuotesCount;
     private int mCodePointSize;
@@ -65,6 +66,7 @@ public class WordComposer {
         mTypedWord = new StringBuilder(source.mTypedWord);
         mInputPointers.copy(source.mInputPointers);
         mCapsCount = source.mCapsCount;
+        mDigitsCount = source.mDigitsCount;
         mIsFirstCharCapitalized = source.mIsFirstCharCapitalized;
         mAutoCapitalized = source.mAutoCapitalized;
         mTrailingSingleQuotesCount = source.mTrailingSingleQuotesCount;
@@ -80,6 +82,7 @@ public class WordComposer {
         mTypedWord.setLength(0);
         mAutoCorrection = null;
         mCapsCount = 0;
+        mDigitsCount = 0;
         mIsFirstCharCapitalized = false;
         mTrailingSingleQuotesCount = 0;
         mIsResumed = false;
@@ -141,6 +144,7 @@ public class WordComposer {
         mIsFirstCharCapitalized = isFirstCharCapitalized(
                 newIndex, primaryCode, mIsFirstCharCapitalized);
         if (Character.isUpperCase(primaryCode)) mCapsCount++;
+        if (Character.isDigit(primaryCode)) mDigitsCount++;
         if (Keyboard.CODE_SINGLE_QUOTE == primaryCode) {
             ++mTrailingSingleQuotesCount;
         } else {
@@ -213,6 +217,7 @@ public class WordComposer {
                 mTypedWord.deleteCharAt(stringBuilderLength - 1);
             }
             if (Character.isUpperCase(lastChar)) mCapsCount--;
+            if (Character.isDigit(lastChar)) mDigitsCount--;
             refreshSize();
         }
         // We may have deleted the last one.
@@ -268,6 +273,13 @@ public class WordComposer {
     }
 
     /**
+     * Returns true if we have digits in the composing word.
+     */
+    public boolean hasDigits() {
+        return mDigitsCount > 0;
+    }
+
+    /**
      * Saves the reason why the word is capitalized - whether it was automatic or
      * due to the user hitting shift in the middle of a sentence.
      * @param auto whether it was an automatic capitalization due to start of sentence
@@ -322,6 +334,7 @@ public class WordComposer {
             lastComposedWord.deactivate();
         }
         mCapsCount = 0;
+        mDigitsCount = 0;
         mIsBatchMode = false;
         mTypedWord.setLength(0);
         mTrailingSingleQuotesCount = 0;
diff --git a/java/src/com/android/inputmethod/latin/makedict/FusionDictionary.java b/java/src/com/android/inputmethod/latin/makedict/FusionDictionary.java
index 8b53c9427..5864db28e 100644
--- a/java/src/com/android/inputmethod/latin/makedict/FusionDictionary.java
+++ b/java/src/com/android/inputmethod/latin/makedict/FusionDictionary.java
@@ -61,8 +61,8 @@ public class FusionDictionary implements Iterable<Word> {
      * This represents an "attribute", that is either a bigram or a shortcut.
      */
     public static class WeightedString {
-        final String mWord;
-        int mFrequency;
+        public final String mWord;
+        public int mFrequency;
         public WeightedString(String word, int frequency) {
             mWord = word;
             mFrequency = frequency;
diff --git a/java/src/com/android/inputmethod/latin/makedict/Word.java b/java/src/com/android/inputmethod/latin/makedict/Word.java
index d07826757..65fc72c40 100644
--- a/java/src/com/android/inputmethod/latin/makedict/Word.java
+++ b/java/src/com/android/inputmethod/latin/makedict/Word.java
@@ -27,10 +27,10 @@ import java.util.Arrays;
  * This is chiefly used to iterate a dictionary.
  */
 public class Word implements Comparable<Word> {
-    final String mWord;
-    final int mFrequency;
-    final ArrayList<WeightedString> mShortcutTargets;
-    final ArrayList<WeightedString> mBigrams;
+    public final String mWord;
+    public final int mFrequency;
+    public final ArrayList<WeightedString> mShortcutTargets;
+    public final ArrayList<WeightedString> mBigrams;
 
     private int mHashCode = 0;
 
diff --git a/java/src/com/android/inputmethod/research/FeedbackActivity.java b/java/src/com/android/inputmethod/research/FeedbackActivity.java
index c9f3b476a..11eae8813 100644
--- a/java/src/com/android/inputmethod/research/FeedbackActivity.java
+++ b/java/src/com/android/inputmethod/research/FeedbackActivity.java
@@ -18,10 +18,7 @@ package com.android.inputmethod.research;
 
 import android.app.Activity;
 import android.os.Bundle;
-import android.text.Editable;
-import android.view.View;
 import android.widget.CheckBox;
-import android.widget.EditText;
 
 import com.android.inputmethod.latin.R;
 
@@ -31,6 +28,11 @@ public class FeedbackActivity extends Activity {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.research_feedback_activity);
         final FeedbackLayout layout = (FeedbackLayout) findViewById(R.id.research_feedback_layout);
+        final CheckBox checkbox = (CheckBox) findViewById(R.id.research_feedback_include_history);
+        final CharSequence cs = checkbox.getText();
+        final String actualString = String.format(cs.toString(),
+                ResearchLogger.FEEDBACK_WORD_BUFFER_SIZE);
+        checkbox.setText(actualString);
         layout.setActivity(this);
     }
 
diff --git a/java/src/com/android/inputmethod/research/LogBuffer.java b/java/src/com/android/inputmethod/research/LogBuffer.java
new file mode 100644
index 000000000..65f5f83ae
--- /dev/null
+++ b/java/src/com/android/inputmethod/research/LogBuffer.java
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.android.inputmethod.research;
+
+import java.util.LinkedList;
+
+/**
+ * A buffer that holds a fixed number of LogUnits.
+ *
+ * LogUnits are added in and shifted out in temporal order.  Only a subset of the LogUnits are
+ * actual words; the other LogUnits do not count toward the word limit.  Once the buffer reaches
+ * capacity, adding another LogUnit that is a word evicts the oldest LogUnits out one at a time to
+ * stay under the capacity limit.
+ */
+public class LogBuffer {
+    protected final LinkedList<LogUnit> mLogUnits;
+    /* package for test */ int mWordCapacity;
+    // The number of members of mLogUnits that are actual words.
+    protected int mNumActualWords;
+
+    /**
+     * Create a new LogBuffer that can hold a fixed number of LogUnits that are words (and
+     * unlimited number of non-word LogUnits), and that outputs its result to a researchLog.
+     *
+     * @param wordCapacity maximum number of words
+     */
+    LogBuffer(final int wordCapacity) {
+        if (wordCapacity <= 0) {
+            throw new IllegalArgumentException("wordCapacity must be 1 or greater.");
+        }
+        mLogUnits = new LinkedList<LogUnit>();
+        mWordCapacity = wordCapacity;
+        mNumActualWords = 0;
+    }
+
+    /**
+     * Adds a new LogUnit to the front of the LIFO queue, evicting existing LogUnit's
+     * (oldest first) if word capacity is reached.
+     */
+    public void shiftIn(LogUnit newLogUnit) {
+        if (newLogUnit.getWord() == null) {
+            // This LogUnit isn't a word, so it doesn't count toward the word-limit.
+            mLogUnits.add(newLogUnit);
+            return;
+        }
+        if (mNumActualWords == mWordCapacity) {
+            shiftOutThroughFirstWord();
+        }
+        mLogUnits.add(newLogUnit);
+        mNumActualWords++; // Must be a word, or we wouldn't be here.
+    }
+
+    private void shiftOutThroughFirstWord() {
+        while (!mLogUnits.isEmpty()) {
+            final LogUnit logUnit = mLogUnits.removeFirst();
+            onShiftOut(logUnit);
+            if (logUnit.hasWord()) {
+                // Successfully shifted out a word-containing LogUnit and made space for the new
+                // LogUnit.
+                mNumActualWords--;
+                break;
+            }
+        }
+    }
+
+    /**
+     * Removes all LogUnits from the buffer without calling onShiftOut().
+     */
+    public void clear() {
+        mLogUnits.clear();
+        mNumActualWords = 0;
+    }
+
+    /**
+     * Called when a LogUnit is removed from the LogBuffer as a result of a shiftIn.  LogUnits are
+     * removed in the order entered.  This method is not called when shiftOut is called directly.
+     *
+     * Base class does nothing; subclasses may override.
+     */
+    protected void onShiftOut(LogUnit logUnit) {
+    }
+
+    /**
+     * Called to deliberately remove the oldest LogUnit.  Usually called when draining the
+     * LogBuffer.
+     */
+    public LogUnit shiftOut() {
+        if (mLogUnits.isEmpty()) {
+            return null;
+        }
+        final LogUnit logUnit = mLogUnits.removeFirst();
+        if (logUnit.hasWord()) {
+            mNumActualWords--;
+        }
+        return logUnit;
+    }
+}
diff --git a/java/src/com/android/inputmethod/research/LogUnit.java b/java/src/com/android/inputmethod/research/LogUnit.java
new file mode 100644
index 000000000..8a80664f5
--- /dev/null
+++ b/java/src/com/android/inputmethod/research/LogUnit.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.android.inputmethod.research;
+
+import java.util.ArrayList;
+
+/**
+ * A group of log statements related to each other.
+ *
+ * A LogUnit is collection of LogStatements, each of which is generated by at a particular point
+ * in the code.  (There is no LogStatement class; the data is stored across the instance variables
+ * here.)  A single LogUnit's statements can correspond to all the calls made while in the same
+ * composing region, or all the calls between committing the last composing region, and the first
+ * character of the next composing region.
+ *
+ * Individual statements in a log may be marked as potentially private.  If so, then they are only
+ * published to a ResearchLog if the ResearchLogger determines that publishing the entire LogUnit
+ * will not violate the user's privacy.  Checks for this may include whether other LogUnits have
+ * been published recently, or whether the LogUnit contains numbers, etc.
+ */
+/* package */ class LogUnit {
+    private final ArrayList<String[]> mKeysList = new ArrayList<String[]>();
+    private final ArrayList<Object[]> mValuesList = new ArrayList<Object[]>();
+    private final ArrayList<Boolean> mIsPotentiallyPrivate = new ArrayList<Boolean>();
+    private String mWord;
+    private boolean mContainsDigit;
+
+    public void addLogStatement(final String[] keys, final Object[] values,
+            final Boolean isPotentiallyPrivate) {
+        mKeysList.add(keys);
+        mValuesList.add(values);
+        mIsPotentiallyPrivate.add(isPotentiallyPrivate);
+    }
+
+    public void publishTo(final ResearchLog researchLog, final boolean isIncludingPrivateData) {
+        final int size = mKeysList.size();
+        for (int i = 0; i < size; i++) {
+            if (!mIsPotentiallyPrivate.get(i) || isIncludingPrivateData) {
+                researchLog.outputEvent(mKeysList.get(i), mValuesList.get(i));
+            }
+        }
+    }
+
+    public void setWord(String word) {
+        mWord = word;
+    }
+
+    public String getWord() {
+        return mWord;
+    }
+
+    public boolean hasWord() {
+        return mWord != null;
+    }
+
+    public void setContainsDigit() {
+        mContainsDigit = true;
+    }
+
+    public boolean hasDigit() {
+        return mContainsDigit;
+    }
+
+    public boolean isEmpty() {
+        return mKeysList.isEmpty();
+    }
+}
diff --git a/java/src/com/android/inputmethod/research/MainLogBuffer.java b/java/src/com/android/inputmethod/research/MainLogBuffer.java
new file mode 100644
index 000000000..745768d35
--- /dev/null
+++ b/java/src/com/android/inputmethod/research/MainLogBuffer.java
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.android.inputmethod.research;
+
+import com.android.inputmethod.latin.Dictionary;
+import com.android.inputmethod.latin.Suggest;
+
+import java.util.Random;
+
+public class MainLogBuffer extends LogBuffer {
+    // The size of the n-grams logged.  E.g. N_GRAM_SIZE = 2 means to sample bigrams.
+    private static final int N_GRAM_SIZE = 2;
+    // The number of words between n-grams to omit from the log.
+    private static final int DEFAULT_NUMBER_OF_WORDS_BETWEEN_SAMPLES = 18;
+
+    private final ResearchLog mResearchLog;
+    private Suggest mSuggest;
+
+    // The minimum periodicity with which n-grams can be sampled.  E.g. mWinWordPeriod is 10 if
+    // every 10th bigram is sampled, i.e., words 1-8 are not, but the bigram at words 9 and 10, etc.
+    // for 11-18, and the bigram at words 19 and 20.  If an n-gram is not safe (e.g. it  contains a
+    // number in the middle or an out-of-vocabulary word), then sampling is delayed until a safe
+    // n-gram does appear.
+    /* package for test */ int mMinWordPeriod;
+
+    // Counter for words left to suppress before an n-gram can be sampled.  Reset to mMinWordPeriod
+    // after a sample is taken.
+    /* package for test */ int mWordsUntilSafeToSample;
+
+    public MainLogBuffer(final ResearchLog researchLog) {
+        super(N_GRAM_SIZE);
+        mResearchLog = researchLog;
+        mMinWordPeriod = DEFAULT_NUMBER_OF_WORDS_BETWEEN_SAMPLES + N_GRAM_SIZE;
+        final Random random = new Random();
+        mWordsUntilSafeToSample = random.nextInt(mMinWordPeriod);
+    }
+
+    public void setSuggest(Suggest suggest) {
+        mSuggest = suggest;
+    }
+
+    @Override
+    public void shiftIn(final LogUnit newLogUnit) {
+        super.shiftIn(newLogUnit);
+        if (newLogUnit.hasWord()) {
+            if (mWordsUntilSafeToSample > 0) {
+                mWordsUntilSafeToSample--;
+            }
+        }
+    }
+
+    public void resetWordCounter() {
+        mWordsUntilSafeToSample = mMinWordPeriod;
+    }
+
+    /**
+     * Determines whether the content of the MainLogBuffer can be safely uploaded in its complete
+     * form and still protect the user's privacy.
+     *
+     * The size of the MainLogBuffer is just enough to hold one n-gram, its corrections, and any
+     * non-character data that is typed between words.  The decision about privacy is made based on
+     * the buffer's entire content.  If it is decided that the privacy risks are too great to upload
+     * the contents of this buffer, a censored version of the LogItems may still be uploaded.  E.g.,
+     * the screen orientation and other characteristics about the device can be uploaded without
+     * revealing much about the user.
+     */
+    public boolean isSafeToLog() {
+        // Check that we are not sampling too frequently.  Having sampled recently might disclose
+        // too much of the user's intended meaning.
+        if (mWordsUntilSafeToSample > 0) {
+            return false;
+        }
+        if (mSuggest == null || !mSuggest.hasMainDictionary()) {
+            // Main dictionary is unavailable.  Since we cannot check it, we cannot tell if a word
+            // is out-of-vocabulary or not.  Therefore, we must judge the entire buffer contents to
+            // potentially pose a privacy risk.
+            return false;
+        }
+        // Reload the dictionary in case it has changed (e.g., because the user has changed
+        // languages).
+        final Dictionary dictionary = mSuggest.getMainDictionary();
+        if (dictionary == null) {
+            return false;
+        }
+        // Check each word in the buffer.  If any word poses a privacy threat, we cannot upload the
+        // complete buffer contents in detail.
+        final int length = mLogUnits.size();
+        for (int i = 0; i < length; i++) {
+            final LogUnit logUnit = mLogUnits.get(i);
+            final String word = logUnit.getWord();
+            if (word == null) {
+                // Digits outside words are a privacy threat.
+                if (logUnit.hasDigit()) {
+                    return false;
+                }
+            } else {
+                // Words not in the dictionary are a privacy threat.
+                if (!(dictionary.isValidWord(word))) {
+                    return false;
+                }
+            }
+        }
+        // All checks have passed; this buffer's content can be safely uploaded.
+        return true;
+    }
+
+    @Override
+    protected void onShiftOut(LogUnit logUnit) {
+        if (mResearchLog != null) {
+            mResearchLog.publish(logUnit, false /* isIncludingPrivateData */);
+        }
+    }
+}
diff --git a/java/src/com/android/inputmethod/research/ResearchLog.java b/java/src/com/android/inputmethod/research/ResearchLog.java
index 18bf3c07f..71a6d6a78 100644
--- a/java/src/com/android/inputmethod/research/ResearchLog.java
+++ b/java/src/com/android/inputmethod/research/ResearchLog.java
@@ -26,7 +26,6 @@ import com.android.inputmethod.keyboard.Key;
 import com.android.inputmethod.latin.SuggestedWords;
 import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo;
 import com.android.inputmethod.latin.define.ProductionFlag;
-import com.android.inputmethod.research.ResearchLogger.LogUnit;
 
 import java.io.BufferedWriter;
 import java.io.File;
@@ -37,6 +36,7 @@ import java.io.OutputStreamWriter;
 import java.util.Map;
 import java.util.concurrent.Callable;
 import java.util.concurrent.Executors;
+import java.util.concurrent.RejectedExecutionException;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.TimeUnit;
@@ -51,21 +51,22 @@ import java.util.concurrent.TimeUnit;
  */
 public class ResearchLog {
     private static final String TAG = ResearchLog.class.getSimpleName();
-    private static final JsonWriter NULL_JSON_WRITER = new JsonWriter(
-            new OutputStreamWriter(new NullOutputStream()));
+    private static final boolean DEBUG = false;
+    private static final long FLUSH_DELAY_IN_MS = 1000 * 5;
+    private static final int ABORT_TIMEOUT_IN_MS = 1000 * 4;
 
-    final ScheduledExecutorService mExecutor;
+    /* package */ final ScheduledExecutorService mExecutor;
     /* package */ final File mFile;
     private JsonWriter mJsonWriter = NULL_JSON_WRITER;
+    // true if at least one byte of data has been written out to the log file.  This must be
+    // remembered because JsonWriter requires that calls matching calls to beginObject and
+    // endObject, as well as beginArray and endArray, and the file is opened lazily, only when
+    // it is certain that data will be written.  Alternatively, the matching call exceptions
+    // could be caught, but this might suppress other errors.
+    private boolean mHasWrittenData = false;
 
-    private int mLoggingState;
-    private static final int LOGGING_STATE_UNSTARTED = 0;
-    private static final int LOGGING_STATE_READY = 1;   // don't create file until necessary
-    private static final int LOGGING_STATE_RUNNING = 2;
-    private static final int LOGGING_STATE_STOPPING = 3;
-    private static final int LOGGING_STATE_STOPPED = 4;
-    private static final long FLUSH_DELAY_IN_MS = 1000 * 5;
-
+    private static final JsonWriter NULL_JSON_WRITER = new JsonWriter(
+            new OutputStreamWriter(new NullOutputStream()));
     private static class NullOutputStream extends OutputStream {
         /** {@inheritDoc} */
         @Override
@@ -84,128 +85,81 @@ public class ResearchLog {
         }
     }
 
-    public ResearchLog(File outputFile) {
-        mExecutor = Executors.newSingleThreadScheduledExecutor();
+    public ResearchLog(final File outputFile) {
         if (outputFile == null) {
             throw new IllegalArgumentException();
         }
+        mExecutor = Executors.newSingleThreadScheduledExecutor();
         mFile = outputFile;
-        mLoggingState = LOGGING_STATE_UNSTARTED;
-    }
-
-    public synchronized void start() throws IOException {
-        switch (mLoggingState) {
-            case LOGGING_STATE_UNSTARTED:
-                mLoggingState = LOGGING_STATE_READY;
-                break;
-            case LOGGING_STATE_READY:
-            case LOGGING_STATE_RUNNING:
-            case LOGGING_STATE_STOPPING:
-            case LOGGING_STATE_STOPPED:
-                break;
-        }
     }
 
-    public synchronized void stop() {
-        switch (mLoggingState) {
-            case LOGGING_STATE_UNSTARTED:
-                mLoggingState = LOGGING_STATE_STOPPED;
-                break;
-            case LOGGING_STATE_READY:
-            case LOGGING_STATE_RUNNING:
-                mExecutor.submit(new Callable<Object>() {
-                    @Override
-                    public Object call() throws Exception {
-                        try {
-                            mJsonWriter.endArray();
-                            mJsonWriter.flush();
-                            mJsonWriter.close();
-                        } finally {
-                            boolean success = mFile.setWritable(false, false);
-                            mLoggingState = LOGGING_STATE_STOPPED;
-                        }
-                        return null;
+    public synchronized void close() {
+        mExecutor.submit(new Callable<Object>() {
+            @Override
+            public Object call() throws Exception {
+                try {
+                    if (mHasWrittenData) {
+                        mJsonWriter.endArray();
+                        mJsonWriter.flush();
+                        mJsonWriter.close();
+                        mHasWrittenData = false;
                     }
-                });
-                removeAnyScheduledFlush();
-                mExecutor.shutdown();
-                mLoggingState = LOGGING_STATE_STOPPING;
-                break;
-            case LOGGING_STATE_STOPPING:
-            case LOGGING_STATE_STOPPED:
-        }
+                } catch (Exception e) {
+                    Log.d(TAG, "error when closing ResearchLog:");
+                    e.printStackTrace();
+                } finally {
+                    if (mFile.exists()) {
+                        mFile.setWritable(false, false);
+                    }
+                }
+                return null;
+            }
+        });
+        removeAnyScheduledFlush();
+        mExecutor.shutdown();
     }
 
-    public boolean isAlive() {
-        switch (mLoggingState) {
-            case LOGGING_STATE_UNSTARTED:
-            case LOGGING_STATE_READY:
-            case LOGGING_STATE_RUNNING:
-                return true;
-        }
-        return false;
-    }
+    private boolean mIsAbortSuccessful;
 
-    public void waitUntilStopped(final int timeoutInMs) throws InterruptedException {
+    public synchronized void abort() {
+        mExecutor.submit(new Callable<Object>() {
+            @Override
+            public Object call() throws Exception {
+                try {
+                    if (mHasWrittenData) {
+                        mJsonWriter.endArray();
+                        mJsonWriter.close();
+                        mHasWrittenData = false;
+                    }
+                } finally {
+                    mIsAbortSuccessful = mFile.delete();
+                }
+                return null;
+            }
+        });
         removeAnyScheduledFlush();
         mExecutor.shutdown();
-        mExecutor.awaitTermination(timeoutInMs, TimeUnit.MILLISECONDS);
     }
 
-    public synchronized void abort() {
-        switch (mLoggingState) {
-            case LOGGING_STATE_UNSTARTED:
-                mLoggingState = LOGGING_STATE_STOPPED;
-                isAbortSuccessful = true;
-                break;
-            case LOGGING_STATE_READY:
-            case LOGGING_STATE_RUNNING:
-                mExecutor.submit(new Callable<Object>() {
-                    @Override
-                    public Object call() throws Exception {
-                        try {
-                            mJsonWriter.endArray();
-                            mJsonWriter.close();
-                        } finally {
-                            isAbortSuccessful = mFile.delete();
-                        }
-                        return null;
-                    }
-                });
-                removeAnyScheduledFlush();
-                mExecutor.shutdown();
-                mLoggingState = LOGGING_STATE_STOPPING;
-                break;
-            case LOGGING_STATE_STOPPING:
-            case LOGGING_STATE_STOPPED:
-        }
+    public boolean blockingAbort() throws InterruptedException {
+        abort();
+        mExecutor.awaitTermination(ABORT_TIMEOUT_IN_MS, TimeUnit.MILLISECONDS);
+        return mIsAbortSuccessful;
     }
 
-    private boolean isAbortSuccessful;
-    public boolean isAbortSuccessful() {
-        return isAbortSuccessful;
+    public void awaitTermination(int delay, TimeUnit timeUnit) throws InterruptedException {
+        mExecutor.awaitTermination(delay, timeUnit);
     }
 
     /* package */ synchronized void flush() {
-        switch (mLoggingState) {
-            case LOGGING_STATE_UNSTARTED:
-                break;
-            case LOGGING_STATE_READY:
-            case LOGGING_STATE_RUNNING:
-                removeAnyScheduledFlush();
-                mExecutor.submit(mFlushCallable);
-                break;
-            case LOGGING_STATE_STOPPING:
-            case LOGGING_STATE_STOPPED:
-        }
+        removeAnyScheduledFlush();
+        mExecutor.submit(mFlushCallable);
     }
 
-    private Callable<Object> mFlushCallable = new Callable<Object>() {
+    private final Callable<Object> mFlushCallable = new Callable<Object>() {
         @Override
         public Object call() throws Exception {
-            if (mLoggingState == LOGGING_STATE_RUNNING) {
-                mJsonWriter.flush();
-            }
+            mJsonWriter.flush();
             return null;
         }
     };
@@ -224,56 +178,40 @@ public class ResearchLog {
         mFlushFuture = mExecutor.schedule(mFlushCallable, FLUSH_DELAY_IN_MS, TimeUnit.MILLISECONDS);
     }
 
-    public synchronized void publishPublicEvents(final LogUnit logUnit) {
-        switch (mLoggingState) {
-            case LOGGING_STATE_UNSTARTED:
-                break;
-            case LOGGING_STATE_READY:
-            case LOGGING_STATE_RUNNING:
-                mExecutor.submit(new Callable<Object>() {
-                    @Override
-                    public Object call() throws Exception {
-                        logUnit.publishPublicEventsTo(ResearchLog.this);
-                        scheduleFlush();
-                        return null;
-                    }
-                });
-                break;
-            case LOGGING_STATE_STOPPING:
-            case LOGGING_STATE_STOPPED:
-        }
-    }
-
-    public synchronized void publishAllEvents(final LogUnit logUnit) {
-        switch (mLoggingState) {
-            case LOGGING_STATE_UNSTARTED:
-                break;
-            case LOGGING_STATE_READY:
-            case LOGGING_STATE_RUNNING:
-                mExecutor.submit(new Callable<Object>() {
-                    @Override
-                    public Object call() throws Exception {
-                        logUnit.publishAllEventsTo(ResearchLog.this);
-                        scheduleFlush();
-                        return null;
-                    }
-                });
-                break;
-            case LOGGING_STATE_STOPPING:
-            case LOGGING_STATE_STOPPED:
+    public synchronized void publish(final LogUnit logUnit, final boolean isIncludingPrivateData) {
+        try {
+            mExecutor.submit(new Callable<Object>() {
+                @Override
+                public Object call() throws Exception {
+                    logUnit.publishTo(ResearchLog.this, isIncludingPrivateData);
+                    scheduleFlush();
+                    return null;
+                }
+            });
+        } catch (RejectedExecutionException e) {
+            // TODO: Add code to record loss of data, and report.
         }
     }
 
     private static final String CURRENT_TIME_KEY = "_ct";
     private static final String UPTIME_KEY = "_ut";
     private static final String EVENT_TYPE_KEY = "_ty";
+
     void outputEvent(final String[] keys, final Object[] values) {
-        // not thread safe.
+        // Not thread safe.
+        if (keys.length == 0) {
+            return;
+        }
+        if (DEBUG) {
+            if (keys.length != values.length + 1) {
+                Log.d(TAG, "Key and Value list sizes do not match. " + keys[0]);
+            }
+        }
         try {
             if (mJsonWriter == NULL_JSON_WRITER) {
                 mJsonWriter = new JsonWriter(new BufferedWriter(new FileWriter(mFile)));
-                mJsonWriter.setLenient(true);
                 mJsonWriter.beginArray();
+                mHasWrittenData = true;
             }
             mJsonWriter.beginObject();
             mJsonWriter.name(CURRENT_TIME_KEY).value(System.currentTimeMillis());
@@ -283,8 +221,8 @@ public class ResearchLog {
             for (int i = 0; i < length; i++) {
                 mJsonWriter.name(keys[i + 1]);
                 Object value = values[i];
-                if (value instanceof String) {
-                    mJsonWriter.value((String) value);
+                if (value instanceof CharSequence) {
+                    mJsonWriter.value(value.toString());
                 } else if (value instanceof Number) {
                     mJsonWriter.value((Number) value);
                 } else if (value instanceof Boolean) {
@@ -331,14 +269,11 @@ public class ResearchLog {
                     SuggestedWords words = (SuggestedWords) value;
                     mJsonWriter.beginObject();
                     mJsonWriter.name("typedWordValid").value(words.mTypedWordValid);
-                    mJsonWriter.name("willAutoCorrect")
-                        .value(words.mWillAutoCorrect);
+                    mJsonWriter.name("willAutoCorrect").value(words.mWillAutoCorrect);
                     mJsonWriter.name("isPunctuationSuggestions")
-                        .value(words.mIsPunctuationSuggestions);
-                    mJsonWriter.name("isObsoleteSuggestions")
-                        .value(words.mIsObsoleteSuggestions);
-                    mJsonWriter.name("isPrediction")
-                        .value(words.mIsPrediction);
+                            .value(words.mIsPunctuationSuggestions);
+                    mJsonWriter.name("isObsoleteSuggestions").value(words.mIsObsoleteSuggestions);
+                    mJsonWriter.name("isPrediction").value(words.mIsPrediction);
                     mJsonWriter.name("words");
                     mJsonWriter.beginArray();
                     final int size = words.size();
@@ -363,8 +298,8 @@ public class ResearchLog {
             try {
                 mJsonWriter.close();
             } catch (IllegalStateException e1) {
-                // assume that this is just the json not being terminated properly.
-                // ignore
+                // Assume that this is just the json not being terminated properly.
+                // Ignore
             } catch (IOException e1) {
                 e1.printStackTrace();
             } finally {
diff --git a/java/src/com/android/inputmethod/research/ResearchLogUploader.java b/java/src/com/android/inputmethod/research/ResearchLogUploader.java
index 3b1213009..9904a1de2 100644
--- a/java/src/com/android/inputmethod/research/ResearchLogUploader.java
+++ b/java/src/com/android/inputmethod/research/ResearchLogUploader.java
@@ -27,7 +27,6 @@ import android.os.BatteryManager;
 import android.util.Log;
 
 import com.android.inputmethod.latin.R;
-import com.android.inputmethod.latin.R.string;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -48,6 +47,7 @@ public final class ResearchLogUploader {
     private static final String TAG = ResearchLogUploader.class.getSimpleName();
     private static final int UPLOAD_INTERVAL_IN_MS = 1000 * 60 * 15; // every 15 min
     private static final int BUF_SIZE = 1024 * 8;
+    protected static final int TIMEOUT_IN_MS = 1000 * 4;
 
     private final boolean mCanUpload;
     private final Context mContext;
@@ -55,8 +55,6 @@ public final class ResearchLogUploader {
     private final URL mUrl;
     private final ScheduledExecutorService mExecutor;
 
-    private Runnable doUploadRunnable = new UploadRunnable(null, false);
-
     public ResearchLogUploader(final Context context, final File filesDir) {
         mContext = context;
         mFilesDir = filesDir;
@@ -93,11 +91,15 @@ public final class ResearchLogUploader {
 
     public void start() {
         if (mCanUpload) {
-            Log.d(TAG, "scheduling regular uploading");
-            mExecutor.scheduleWithFixedDelay(doUploadRunnable, UPLOAD_INTERVAL_IN_MS,
-                    UPLOAD_INTERVAL_IN_MS, TimeUnit.MILLISECONDS);
-        } else {
-            Log.d(TAG, "no permission to upload");
+            mExecutor.scheduleWithFixedDelay(new UploadRunnable(null /* logToWaitFor */,
+                    null /* callback */, false /* forceUpload */),
+                    UPLOAD_INTERVAL_IN_MS, UPLOAD_INTERVAL_IN_MS, TimeUnit.MILLISECONDS);
+        }
+    }
+
+    public void uploadAfterCompletion(final ResearchLog researchLog, final Callback callback) {
+        if (mCanUpload) {
+            mExecutor.submit(new UploadRunnable(researchLog, callback, true /* forceUpload */));
         }
     }
 
@@ -106,7 +108,8 @@ public final class ResearchLogUploader {
         // another upload happening right now, as it may have missed the latest changes.
         // TODO: Reschedule regular upload tests starting from now.
         if (mCanUpload) {
-            mExecutor.submit(new UploadRunnable(callback, true));
+            mExecutor.submit(new UploadRunnable(null /* logToWaitFor */, callback,
+                    true /* forceUpload */));
         }
     }
 
@@ -130,19 +133,33 @@ public final class ResearchLogUploader {
     }
 
     class UploadRunnable implements Runnable {
+        private final ResearchLog mLogToWaitFor;
         private final Callback mCallback;
         private final boolean mForceUpload;
 
-        public UploadRunnable(final Callback callback, final boolean forceUpload) {
+        public UploadRunnable(final ResearchLog logToWaitFor, final Callback callback,
+                final boolean forceUpload) {
+            mLogToWaitFor = logToWaitFor;
             mCallback = callback;
             mForceUpload = forceUpload;
         }
 
         @Override
         public void run() {
+            if (mLogToWaitFor != null) {
+                waitFor(mLogToWaitFor);
+            }
             doUpload();
         }
 
+        private void waitFor(final ResearchLog researchLog) {
+            try {
+                researchLog.awaitTermination(TIMEOUT_IN_MS, TimeUnit.MILLISECONDS);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+
         private void doUpload() {
             if (!mForceUpload && (!isExternallyPowered() || !hasWifiConnection())) {
                 return;
diff --git a/java/src/com/android/inputmethod/research/ResearchLogger.java b/java/src/com/android/inputmethod/research/ResearchLogger.java
index 68bd98a23..77c498648 100644
--- a/java/src/com/android/inputmethod/research/ResearchLogger.java
+++ b/java/src/com/android/inputmethod/research/ResearchLogger.java
@@ -34,15 +34,18 @@ import android.graphics.Paint.Style;
 import android.inputmethodservice.InputMethodService;
 import android.os.Build;
 import android.os.IBinder;
+import android.os.SystemClock;
 import android.text.TextUtils;
 import android.text.format.DateUtils;
 import android.util.Log;
+import android.view.KeyEvent;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.Window;
 import android.view.WindowManager;
 import android.view.inputmethod.CompletionInfo;
+import android.view.inputmethod.CorrectionInfo;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputConnection;
 import android.widget.Button;
@@ -64,11 +67,8 @@ import com.android.inputmethod.latin.SuggestedWords;
 import com.android.inputmethod.latin.define.ProductionFlag;
 
 import java.io.File;
-import java.io.IOException;
 import java.text.SimpleDateFormat;
-import java.util.ArrayList;
 import java.util.Date;
-import java.util.List;
 import java.util.Locale;
 import java.util.UUID;
 
@@ -94,24 +94,21 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
             new SimpleDateFormat("yyyyMMddHHmmssS", Locale.US);
     private static final boolean IS_SHOWING_INDICATOR = true;
     private static final boolean IS_SHOWING_INDICATOR_CLEARLY = false;
+    public static final int FEEDBACK_WORD_BUFFER_SIZE = 5;
 
     // constants related to specific log points
     private static final String WHITESPACE_SEPARATORS = " \t\n\r";
     private static final int MAX_INPUTVIEW_LENGTH_TO_CAPTURE = 8192; // must be >=1
     private static final String PREF_RESEARCH_LOGGER_UUID_STRING = "pref_research_logger_uuid";
-    private static final int ABORT_TIMEOUT_IN_MS = 10 * 1000; // timeout to notify user
 
     private static final ResearchLogger sInstance = new ResearchLogger();
     // to write to a different filename, e.g., for testing, set mFile before calling start()
     /* package */ File mFilesDir;
     /* package */ String mUUIDString;
     /* package */ ResearchLog mMainResearchLog;
-    // The mIntentionalResearchLog records all events for the session, private or not (excepting
-    // passwords).  It is written to permanent storage only if the user explicitly commands
-    // the system to do so.
-    /* package */ ResearchLog mIntentionalResearchLog;
-    // LogUnits are queued here and released only when the user requests the intentional log.
-    private List<LogUnit> mIntentionalResearchLogQueue = new ArrayList<LogUnit>();
+    /* package */ ResearchLog mFeedbackLog;
+    /* package */ MainLogBuffer mMainLogBuffer;
+    /* package */ LogBuffer mFeedbackLogBuffer;
 
     private boolean mIsPasswordView = false;
     private boolean mIsLoggingSuspended = false;
@@ -135,10 +132,13 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
     private Dictionary mDictionary;
     private KeyboardSwitcher mKeyboardSwitcher;
     private InputMethodService mInputMethodService;
-
+    private final Statistics mStatistics;
     private ResearchLogUploader mResearchLogUploader;
 
+    private LogUnit mCurrentLogUnit = new LogUnit();
+
     private ResearchLogger() {
+        mStatistics = Statistics.getInstance();
     }
 
     public static ResearchLogger getInstance() {
@@ -259,6 +259,16 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
         e.apply();
     }
 
+    private void setLoggingAllowed(boolean enableLogging) {
+        if (mPrefs == null) {
+            return;
+        }
+        Editor e = mPrefs.edit();
+        e.putBoolean(PREF_USABILITY_STUDY_MODE, enableLogging);
+        e.apply();
+        sIsLogging = enableLogging;
+    }
+
     private File createLogFile(File filesDir) {
         final StringBuilder sb = new StringBuilder();
         sb.append(FILENAME_PREFIX).append('-');
@@ -268,10 +278,35 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
         return new File(filesDir, sb.toString());
     }
 
+    private void checkForEmptyEditor() {
+        if (mInputMethodService == null) {
+            return;
+        }
+        final InputConnection ic = mInputMethodService.getCurrentInputConnection();
+        if (ic == null) {
+            return;
+        }
+        final CharSequence textBefore = ic.getTextBeforeCursor(1, 0);
+        if (!TextUtils.isEmpty(textBefore)) {
+            mStatistics.setIsEmptyUponStarting(false);
+            return;
+        }
+        final CharSequence textAfter = ic.getTextAfterCursor(1, 0);
+        if (!TextUtils.isEmpty(textAfter)) {
+            mStatistics.setIsEmptyUponStarting(false);
+            return;
+        }
+        if (textBefore != null && textAfter != null) {
+            mStatistics.setIsEmptyUponStarting(true);
+        }
+    }
+
     private void start() {
         maybeShowSplashScreen();
         updateSuspendedState();
         requestIndicatorRedraw();
+        mStatistics.reset();
+        checkForEmptyEditor();
         if (!isAllowedToLog()) {
             // Log.w(TAG, "not in usability mode; not logging");
             return;
@@ -280,73 +315,58 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
             Log.w(TAG, "IME storage directory does not exist.  Cannot start logging.");
             return;
         }
-        try {
-            if (mMainResearchLog == null || !mMainResearchLog.isAlive()) {
-                mMainResearchLog = new ResearchLog(createLogFile(mFilesDir));
-            }
-            mMainResearchLog.start();
-            if (mIntentionalResearchLog == null || !mIntentionalResearchLog.isAlive()) {
-                mIntentionalResearchLog = new ResearchLog(createLogFile(mFilesDir));
-            }
-            mIntentionalResearchLog.start();
-        } catch (IOException e) {
-            Log.w(TAG, "Could not start ResearchLogger.");
+        if (mMainLogBuffer == null) {
+            mMainResearchLog = new ResearchLog(createLogFile(mFilesDir));
+            mMainLogBuffer = new MainLogBuffer(mMainResearchLog);
+            mMainLogBuffer.setSuggest(mSuggest);
+        }
+        if (mFeedbackLogBuffer == null) {
+            mFeedbackLog = new ResearchLog(createLogFile(mFilesDir));
+            // LogBuffer is one more than FEEDBACK_WORD_BUFFER_SIZE, because it must also hold
+            // the feedback LogUnit itself.
+            mFeedbackLogBuffer = new LogBuffer(FEEDBACK_WORD_BUFFER_SIZE + 1);
         }
     }
 
     /* package */ void stop() {
-        if (mMainResearchLog != null) {
-            mMainResearchLog.stop();
-        }
-        if (mIntentionalResearchLog != null) {
-            mIntentionalResearchLog.stop();
-        }
-    }
+        logStatistics();
+        commitCurrentLogUnit();
 
-    private void setLoggingAllowed(boolean enableLogging) {
-        if (mPrefs == null) {
-            return;
+        if (mMainLogBuffer != null) {
+            publishLogBuffer(mMainLogBuffer, mMainResearchLog, false /* isIncludingPrivateData */);
+            mMainResearchLog.close();
+            mMainLogBuffer = null;
+        }
+        if (mFeedbackLogBuffer != null) {
+            mFeedbackLog.close();
+            mFeedbackLogBuffer = null;
         }
-        Editor e = mPrefs.edit();
-        e.putBoolean(PREF_USABILITY_STUDY_MODE, enableLogging);
-        e.apply();
-        sIsLogging = enableLogging;
     }
 
     public boolean abort() {
         boolean didAbortMainLog = false;
-        if (mMainResearchLog != null) {
-            mMainResearchLog.abort();
+        if (mMainLogBuffer != null) {
+            mMainLogBuffer.clear();
             try {
-                mMainResearchLog.waitUntilStopped(ABORT_TIMEOUT_IN_MS);
+                didAbortMainLog = mMainResearchLog.blockingAbort();
             } catch (InterruptedException e) {
-                // interrupted early.  carry on.
+                // Don't know whether this succeeded or not.  We assume not; this is reported
+                // to the caller.
             }
-            if (mMainResearchLog.isAbortSuccessful()) {
-                didAbortMainLog = true;
-            }
-            mMainResearchLog = null;
+            mMainLogBuffer = null;
         }
-        boolean didAbortIntentionalLog = false;
-        if (mIntentionalResearchLog != null) {
-            mIntentionalResearchLog.abort();
+        boolean didAbortFeedbackLog = false;
+        if (mFeedbackLogBuffer != null) {
+            mFeedbackLogBuffer.clear();
             try {
-                mIntentionalResearchLog.waitUntilStopped(ABORT_TIMEOUT_IN_MS);
+                didAbortFeedbackLog = mFeedbackLog.blockingAbort();
             } catch (InterruptedException e) {
-                // interrupted early.  carry on.
-            }
-            if (mIntentionalResearchLog.isAbortSuccessful()) {
-                didAbortIntentionalLog = true;
+                // Don't know whether this succeeded or not.  We assume not; this is reported
+                // to the caller.
             }
-            mIntentionalResearchLog = null;
-        }
-        return didAbortMainLog && didAbortIntentionalLog;
-    }
-
-    /* package */ void flush() {
-        if (mMainResearchLog != null) {
-            mMainResearchLog.flush();
+            mFeedbackLogBuffer = null;
         }
+        return didAbortMainLog && didAbortFeedbackLog;
     }
 
     private void restart() {
@@ -450,79 +470,39 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
         latinIME.launchKeyboardedDialogActivity(FeedbackActivity.class);
     }
 
-    private ResearchLog mFeedbackLog;
-    private List<LogUnit> mFeedbackQueue;
-    private ResearchLog mSavedMainResearchLog;
-    private ResearchLog mSavedIntentionalResearchLog;
-    private List<LogUnit> mSavedIntentionalResearchLogQueue;
-
-    private void saveLogsForFeedback() {
-        mFeedbackLog = mIntentionalResearchLog;
-        if (mIntentionalResearchLogQueue != null) {
-            mFeedbackQueue = new ArrayList<LogUnit>(mIntentionalResearchLogQueue);
-        } else {
-            mFeedbackQueue = null;
-        }
-        mSavedMainResearchLog = mMainResearchLog;
-        mSavedIntentionalResearchLog = mIntentionalResearchLog;
-        mSavedIntentionalResearchLogQueue = mIntentionalResearchLogQueue;
-
-        mMainResearchLog = null;
-        mIntentionalResearchLog = null;
-        mIntentionalResearchLogQueue = new ArrayList<LogUnit>();
-    }
-
-    private static final int LOG_DRAIN_TIMEOUT_IN_MS = 1000 * 5;
+    private static final String[] EVENTKEYS_FEEDBACK = {
+        "UserTimestamp", "contents"
+    };
     public void sendFeedback(final String feedbackContents, final boolean includeHistory) {
-        if (includeHistory && mFeedbackLog != null) {
-            try {
-                LogUnit headerLogUnit = new LogUnit();
-                headerLogUnit.addLogAtom(EVENTKEYS_INTENTIONAL_LOG, EVENTKEYS_NULLVALUES, false);
-                mFeedbackLog.publishAllEvents(headerLogUnit);
-                for (LogUnit logUnit : mFeedbackQueue) {
-                    mFeedbackLog.publishAllEvents(logUnit);
-                }
-                userFeedback(mFeedbackLog, feedbackContents);
-                mFeedbackLog.stop();
-                try {
-                    mFeedbackLog.waitUntilStopped(LOG_DRAIN_TIMEOUT_IN_MS);
-                } catch (InterruptedException e) {
-                    e.printStackTrace();
-                }
-                mIntentionalResearchLog = new ResearchLog(createLogFile(mFilesDir));
-                mIntentionalResearchLog.start();
-            } catch (IOException e) {
-                e.printStackTrace();
-            } finally {
-                mIntentionalResearchLogQueue.clear();
-            }
-            mResearchLogUploader.uploadNow(null);
-        } else {
-            // create a separate ResearchLog just for feedback
-            final ResearchLog feedbackLog = new ResearchLog(createLogFile(mFilesDir));
-            try {
-                feedbackLog.start();
-                userFeedback(feedbackLog, feedbackContents);
-                feedbackLog.stop();
-                feedbackLog.waitUntilStopped(LOG_DRAIN_TIMEOUT_IN_MS);
-                mResearchLogUploader.uploadNow(null);
-            } catch (IOException e) {
-                e.printStackTrace();
-            } catch (InterruptedException e) {
-                e.printStackTrace();
-            }
+        if (mFeedbackLogBuffer == null) {
+            return;
+        }
+        if (!includeHistory) {
+            mFeedbackLogBuffer.clear();
         }
+        commitCurrentLogUnit();
+        final LogUnit feedbackLogUnit = new LogUnit();
+        final Object[] values = {
+            feedbackContents
+        };
+        feedbackLogUnit.addLogStatement(EVENTKEYS_FEEDBACK, values,
+                false /* isPotentiallyPrivate */);
+        mFeedbackLogBuffer.shiftIn(feedbackLogUnit);
+        publishLogBuffer(mFeedbackLogBuffer, mFeedbackLog, true /* isIncludingPrivateData */);
+        mFeedbackLog.close();
+        mResearchLogUploader.uploadAfterCompletion(mFeedbackLog, null);
+        mFeedbackLog = new ResearchLog(createLogFile(mFilesDir));
     }
 
     public void onLeavingSendFeedbackDialog() {
         mInFeedbackDialog = false;
-        mMainResearchLog = mSavedMainResearchLog;
-        mIntentionalResearchLog = mSavedIntentionalResearchLog;
-        mIntentionalResearchLogQueue = mSavedIntentionalResearchLogQueue;
     }
 
     public void initSuggest(Suggest suggest) {
         mSuggest = suggest;
+        if (mMainLogBuffer != null) {
+            mMainLogBuffer.setSuggest(mSuggest);
+        }
     }
 
     private void setIsPasswordView(boolean isPasswordView) {
@@ -530,7 +510,7 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
     }
 
     private boolean isAllowedToLog() {
-        return !mIsPasswordView && !mIsLoggingSuspended && sIsLogging;
+        return !mIsPasswordView && !mIsLoggingSuspended && sIsLogging && !mInFeedbackDialog;
     }
 
     public void requestIndicatorRedraw() {
@@ -577,13 +557,8 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
         }
     }
 
-    private static final String CURRENT_TIME_KEY = "_ct";
-    private static final String UPTIME_KEY = "_ut";
-    private static final String EVENT_TYPE_KEY = "_ty";
     private static final Object[] EVENTKEYS_NULLVALUES = {};
 
-    private LogUnit mCurrentLogUnit = new LogUnit();
-
     /**
      * Buffer a research log event, flagging it as privacy-sensitive.
      *
@@ -599,10 +574,14 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
             final Object[] values) {
         assert values.length + 1 == keys.length;
         if (isAllowedToLog()) {
-            mCurrentLogUnit.addLogAtom(keys, values, true);
+            mCurrentLogUnit.addLogStatement(keys, values, true /* isPotentiallyPrivate */);
         }
     }
 
+    private void setCurrentLogUnitContainsDigitFlag() {
+        mCurrentLogUnit.setContainsDigit();
+    }
+
     /**
      * Buffer a research log event, flaggint it as not privacy-sensitive.
      *
@@ -618,139 +597,54 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
     private synchronized void enqueueEvent(final String[] keys, final Object[] values) {
         assert values.length + 1 == keys.length;
         if (isAllowedToLog()) {
-            mCurrentLogUnit.addLogAtom(keys, values, false);
+            mCurrentLogUnit.addLogStatement(keys, values, false /* isPotentiallyPrivate */);
         }
     }
 
-    // Used to track how often words are logged.  Too-frequent logging can leak
-    // semantics, disclosing private data.
-    /* package for test */ static class LoggingFrequencyState {
-        private static final int DEFAULT_WORD_LOG_FREQUENCY = 10;
-        private int mWordsRemainingToSkip;
-        private final int mFrequency;
-
-        /**
-         * Tracks how often words may be uploaded.
-         *
-         * @param frequency 1=Every word, 2=Every other word, etc.
-         */
-        public LoggingFrequencyState(int frequency) {
-            mFrequency = frequency;
-            mWordsRemainingToSkip = mFrequency;
-        }
-
-        public void onWordLogged() {
-            mWordsRemainingToSkip = mFrequency;
-        }
-
-        public void onWordNotLogged() {
-            if (mWordsRemainingToSkip > 1) {
-                mWordsRemainingToSkip--;
+    /* package for test */ void commitCurrentLogUnit() {
+        if (!mCurrentLogUnit.isEmpty()) {
+            if (mMainLogBuffer != null) {
+                mMainLogBuffer.shiftIn(mCurrentLogUnit);
+                if (mMainLogBuffer.isSafeToLog() && mMainResearchLog != null) {
+                    publishLogBuffer(mMainLogBuffer, mMainResearchLog,
+                            true /* isIncludingPrivateData */);
+                    mMainLogBuffer.resetWordCounter();
+                }
             }
+            if (mFeedbackLogBuffer != null) {
+                mFeedbackLogBuffer.shiftIn(mCurrentLogUnit);
+            }
+            mCurrentLogUnit = new LogUnit();
+            Log.d(TAG, "commitCurrentLogUnit");
         }
+    }
 
-        public boolean isSafeToLog() {
-            return mWordsRemainingToSkip <= 1;
+    /* package for test */ void publishLogBuffer(final LogBuffer logBuffer,
+            final ResearchLog researchLog, final boolean isIncludingPrivateData) {
+        LogUnit logUnit;
+        while ((logUnit = logBuffer.shiftOut()) != null) {
+            researchLog.publish(logUnit, isIncludingPrivateData);
         }
     }
 
-    /* package for test */ LoggingFrequencyState mLoggingFrequencyState =
-            new LoggingFrequencyState(LoggingFrequencyState.DEFAULT_WORD_LOG_FREQUENCY);
-
-    /* package for test */ boolean isPrivacyThreat(String word) {
-        // Current checks:
-        // - Word not in dictionary
-        // - Word contains numbers
-        // - Privacy-safe word not logged recently
-        if (TextUtils.isEmpty(word)) {
-            return false;
-        }
-        if (!mLoggingFrequencyState.isSafeToLog()) {
-            return true;
-        }
+    private boolean hasOnlyLetters(final String word) {
         final int length = word.length();
-        boolean hasLetter = false;
         for (int i = 0; i < length; i = word.offsetByCodePoints(i, 1)) {
-            final int codePoint = Character.codePointAt(word, i);
-            if (Character.isDigit(codePoint)) {
-                return true;
+            final int codePoint = word.codePointAt(i);
+            if (!Character.isLetter(codePoint)) {
+                return false;
             }
-            if (Character.isLetter(codePoint)) {
-                hasLetter = true;
-                break; // Word may contain digits, but will only be allowed if in the dictionary.
-            }
-        }
-        if (hasLetter) {
-            if (mDictionary == null && mSuggest != null && mSuggest.hasMainDictionary()) {
-                mDictionary = mSuggest.getMainDictionary();
-            }
-            if (mDictionary == null) {
-                // Can't access dictionary.  Assume privacy threat.
-                return true;
-            }
-            return !(mDictionary.isValidWord(word));
         }
-        // No letters, no numbers.  Punctuation, space, or something else.
-        return false;
+        return true;
     }
 
-    private void onWordComplete(String word) {
-        if (isPrivacyThreat(word)) {
-            publishLogUnit(mCurrentLogUnit, true);
-            mLoggingFrequencyState.onWordNotLogged();
-        } else {
-            publishLogUnit(mCurrentLogUnit, false);
-            mLoggingFrequencyState.onWordLogged();
-        }
-        mCurrentLogUnit = new LogUnit();
-    }
-
-    private void publishLogUnit(LogUnit logUnit, boolean isPrivacySensitive) {
-        if (!isAllowedToLog()) {
-            return;
-        }
-        if (mMainResearchLog == null) {
-            return;
-        }
-        if (isPrivacySensitive) {
-            mMainResearchLog.publishPublicEvents(logUnit);
-        } else {
-            mMainResearchLog.publishAllEvents(logUnit);
-        }
-        mIntentionalResearchLogQueue.add(logUnit);
-    }
-
-    /* package */ void publishCurrentLogUnit(ResearchLog researchLog, boolean isPrivacySensitive) {
-        publishLogUnit(mCurrentLogUnit, isPrivacySensitive);
-    }
-
-    static class LogUnit {
-        private final List<String[]> mKeysList = new ArrayList<String[]>();
-        private final List<Object[]> mValuesList = new ArrayList<Object[]>();
-        private final List<Boolean> mIsPotentiallyPrivate = new ArrayList<Boolean>();
-
-        private void addLogAtom(final String[] keys, final Object[] values,
-                final Boolean isPotentiallyPrivate) {
-            mKeysList.add(keys);
-            mValuesList.add(values);
-            mIsPotentiallyPrivate.add(isPotentiallyPrivate);
-        }
-
-        public void publishPublicEventsTo(ResearchLog researchLog) {
-            final int size = mKeysList.size();
-            for (int i = 0; i < size; i++) {
-                if (!mIsPotentiallyPrivate.get(i)) {
-                    researchLog.outputEvent(mKeysList.get(i), mValuesList.get(i));
-                }
-            }
-        }
-
-        public void publishAllEventsTo(ResearchLog researchLog) {
-            final int size = mKeysList.size();
-            for (int i = 0; i < size; i++) {
-                researchLog.outputEvent(mKeysList.get(i), mValuesList.get(i));
-            }
+    private void onWordComplete(final String word) {
+        Log.d(TAG, "onWordComplete: " + word);
+        if (word != null && word.length() > 0 && hasOnlyLetters(word)) {
+            mCurrentLogUnit.setWord(word);
+            mStatistics.recordWordEntered();
         }
+        commitCurrentLogUnit();
     }
 
     private static int scrubDigitFromCodePoint(int codePoint) {
@@ -803,12 +697,6 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
         return WORD_REPLACEMENT_STRING;
     }
 
-    // Special methods related to startup, shutdown, logging itself
-
-    private static final String[] EVENTKEYS_INTENTIONAL_LOG = {
-        "IntentionalLog"
-    };
-
     private static final String[] EVENTKEYS_LATINIME_ONSTARTINPUTVIEWINTERNAL = {
         "LatinIMEOnStartInputViewInternal", "uuid", "packageName", "inputType", "imeOptions",
         "fieldId", "display", "model", "prefs", "versionCode", "versionName", "outputFormatVersion"
@@ -816,9 +704,6 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
     public static void latinIME_onStartInputViewInternal(final EditorInfo editorInfo,
             final SharedPreferences prefs) {
         final ResearchLogger researchLogger = getInstance();
-        if (researchLogger.mInFeedbackDialog) {
-            researchLogger.saveLogsForFeedback();
-        }
         researchLogger.start();
         if (editorInfo != null) {
             final Context context = researchLogger.mInputMethodService;
@@ -846,34 +731,10 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
         stop();
     }
 
-    private static final String[] EVENTKEYS_LATINIME_COMMITTEXT = {
-        "LatinIMECommitText", "typedWord"
-    };
-
-    public static void latinIME_commitText(final CharSequence typedWord) {
-        final String scrubbedWord = scrubDigitsFromString(typedWord.toString());
-        final Object[] values = {
-            scrubbedWord
-        };
-        final ResearchLogger researchLogger = getInstance();
-        researchLogger.enqueuePotentiallyPrivateEvent(EVENTKEYS_LATINIME_COMMITTEXT, values);
-        researchLogger.onWordComplete(scrubbedWord);
-    }
-
     private static final String[] EVENTKEYS_USER_FEEDBACK = {
         "UserFeedback", "FeedbackContents"
     };
 
-    private void userFeedback(ResearchLog researchLog, String feedbackContents) {
-        // this method is special; it directs the feedbackContents to a particular researchLog
-        final LogUnit logUnit = new LogUnit();
-        final Object[] values = {
-            feedbackContents
-        };
-        logUnit.addLogAtom(EVENTKEYS_USER_FEEDBACK, values, false);
-        researchLog.publishAllEvents(logUnit);
-    }
-
     // Regular logging methods
 
     private static final String[] EVENTKEYS_MAINKEYBOARDVIEW_PROCESSMOTIONEVENT = {
@@ -908,51 +769,16 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
         "LatinIMEOnCodeInput", "code", "x", "y"
     };
     public static void latinIME_onCodeInput(final int code, final int x, final int y) {
-        final Object[] values = {
-            Keyboard.printableCode(scrubDigitFromCodePoint(code)), x, y
-        };
-        getInstance().enqueuePotentiallyPrivateEvent(EVENTKEYS_LATINIME_ONCODEINPUT, values);
-    }
-
-    private static final String[] EVENTKEYS_CORRECTION = {
-        "LogCorrection", "subgroup", "before", "after", "position"
-    };
-    public static void logCorrection(final String subgroup, final String before, final String after,
-            final int position) {
-        final Object[] values = {
-            subgroup, scrubDigitsFromString(before), scrubDigitsFromString(after), position
-        };
-        getInstance().enqueuePotentiallyPrivateEvent(EVENTKEYS_CORRECTION, values);
-    }
-
-    private static final String[] EVENTKEYS_LATINIME_COMMITCURRENTAUTOCORRECTION = {
-        "LatinIMECommitCurrentAutoCorrection", "typedWord", "autoCorrection"
-    };
-    public static void latinIME_commitCurrentAutoCorrection(final String typedWord,
-            final String autoCorrection) {
-        final Object[] values = {
-            scrubDigitsFromString(typedWord), scrubDigitsFromString(autoCorrection)
-        };
+        final long time = SystemClock.uptimeMillis();
         final ResearchLogger researchLogger = getInstance();
-        researchLogger.enqueuePotentiallyPrivateEvent(
-                EVENTKEYS_LATINIME_COMMITCURRENTAUTOCORRECTION, values);
-    }
-
-    private static final String[] EVENTKEYS_LATINIME_DELETESURROUNDINGTEXT = {
-        "LatinIMEDeleteSurroundingText", "length"
-    };
-    public static void latinIME_deleteSurroundingText(final int length) {
         final Object[] values = {
-            length
+            Keyboard.printableCode(scrubDigitFromCodePoint(code)), x, y
         };
-        getInstance().enqueueEvent(EVENTKEYS_LATINIME_DELETESURROUNDINGTEXT, values);
-    }
-
-    private static final String[] EVENTKEYS_LATINIME_DOUBLESPACEAUTOPERIOD = {
-        "LatinIMEDoubleSpaceAutoPeriod"
-    };
-    public static void latinIME_doubleSpaceAutoPeriod() {
-        getInstance().enqueueEvent(EVENTKEYS_LATINIME_DOUBLESPACEAUTOPERIOD, EVENTKEYS_NULLVALUES);
+        researchLogger.enqueuePotentiallyPrivateEvent(EVENTKEYS_LATINIME_ONCODEINPUT, values);
+        if (Character.isDigit(code)) {
+            researchLogger.setCurrentLogUnitContainsDigitFlag();
+        }
+        researchLogger.mStatistics.recordChar(code, time);
     }
 
     private static final String[] EVENTKEYS_LATINIME_ONDISPLAYCOMPLETIONS = {
@@ -979,6 +805,10 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
     public static void latinIME_onWindowHidden(final int savedSelectionStart,
             final int savedSelectionEnd, final InputConnection ic) {
         if (ic != null) {
+            // Capture the TextView contents.  This will trigger onUpdateSelection(), so we
+            // set sLatinIMEExpectingUpdateSelection so that when onUpdateSelection() is called,
+            // it can tell that it was generated by the logging code, and not by the user, and
+            // therefore keep user-visible state as is.
             ic.beginBatchEdit();
             ic.performContextMenuAction(android.R.id.selectAll);
             CharSequence charSequence = ic.getSelectedText(0);
@@ -1013,9 +843,7 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
             }
             final ResearchLogger researchLogger = getInstance();
             researchLogger.enqueueEvent(EVENTKEYS_LATINIME_ONWINDOWHIDDEN, values);
-            // Play it safe.  Remove privacy-sensitive events.
-            researchLogger.publishLogUnit(researchLogger.mCurrentLogUnit, true);
-            researchLogger.mCurrentLogUnit = new LogUnit();
+            researchLogger.commitCurrentLogUnit();
             getInstance().stop();
         }
     }
@@ -1048,29 +876,6 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
         researchLogger.enqueuePotentiallyPrivateEvent(EVENTKEYS_LATINIME_ONUPDATESELECTION, values);
     }
 
-    private static final String[] EVENTKEYS_LATINIME_PERFORMEDITORACTION = {
-        "LatinIMEPerformEditorAction", "imeActionNext"
-    };
-    public static void latinIME_performEditorAction(final int imeActionNext) {
-        final Object[] values = {
-            imeActionNext
-        };
-        getInstance().enqueueEvent(EVENTKEYS_LATINIME_PERFORMEDITORACTION, values);
-    }
-
-    private static final String[] EVENTKEYS_LATINIME_PICKAPPLICATIONSPECIFIEDCOMPLETION = {
-        "LatinIMEPickApplicationSpecifiedCompletion", "index", "text", "x", "y"
-    };
-    public static void latinIME_pickApplicationSpecifiedCompletion(final int index,
-            final CharSequence cs, int x, int y) {
-        final Object[] values = {
-            index, cs, x, y
-        };
-        final ResearchLogger researchLogger = getInstance();
-        researchLogger.enqueuePotentiallyPrivateEvent(
-                EVENTKEYS_LATINIME_PICKAPPLICATIONSPECIFIEDCOMPLETION, values);
-    }
-
     private static final String[] EVENTKEYS_LATINIME_PICKSUGGESTIONMANUALLY = {
         "LatinIMEPickSuggestionManually", "replacedWord", "index", "suggestion", "x", "y"
     };
@@ -1096,21 +901,6 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
         getInstance().enqueueEvent(EVENTKEYS_LATINIME_PUNCTUATIONSUGGESTION, values);
     }
 
-    private static final String[] EVENTKEYS_LATINIME_REVERTDOUBLESPACEWHILEINBATCHEDIT = {
-        "LatinIMERevertDoubleSpaceWhileInBatchEdit"
-    };
-    public static void latinIME_revertDoubleSpaceWhileInBatchEdit() {
-        getInstance().enqueueEvent(EVENTKEYS_LATINIME_REVERTDOUBLESPACEWHILEINBATCHEDIT,
-                EVENTKEYS_NULLVALUES);
-    }
-
-    private static final String[] EVENTKEYS_LATINIME_REVERTSWAPPUNCTUATION = {
-        "LatinIMERevertSwapPunctuation"
-    };
-    public static void latinIME_revertSwapPunctuation() {
-        getInstance().enqueueEvent(EVENTKEYS_LATINIME_REVERTSWAPPUNCTUATION, EVENTKEYS_NULLVALUES);
-    }
-
     private static final String[] EVENTKEYS_LATINIME_SENDKEYCODEPOINT = {
         "LatinIMESendKeyCodePoint", "code"
     };
@@ -1118,15 +908,18 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
         final Object[] values = {
             Keyboard.printableCode(scrubDigitFromCodePoint(code))
         };
-        getInstance().enqueuePotentiallyPrivateEvent(EVENTKEYS_LATINIME_SENDKEYCODEPOINT, values);
+        final ResearchLogger researchLogger = getInstance();
+        researchLogger.enqueuePotentiallyPrivateEvent(EVENTKEYS_LATINIME_SENDKEYCODEPOINT, values);
+        if (Character.isDigit(code)) {
+            researchLogger.setCurrentLogUnitContainsDigitFlag();
+        }
     }
 
-    private static final String[] EVENTKEYS_LATINIME_SWAPSWAPPERANDSPACEWHILEINBATCHEDIT = {
-        "LatinIMESwapSwapperAndSpaceWhileInBatchEdit"
+    private static final String[] EVENTKEYS_LATINIME_SWAPSWAPPERANDSPACE = {
+        "LatinIMESwapSwapperAndSpace"
     };
-    public static void latinIME_swapSwapperAndSpaceWhileInBatchEdit() {
-        getInstance().enqueueEvent(EVENTKEYS_LATINIME_SWAPSWAPPERANDSPACEWHILEINBATCHEDIT,
-                EVENTKEYS_NULLVALUES);
+    public static void latinIME_swapSwapperAndSpace() {
+        getInstance().enqueueEvent(EVENTKEYS_LATINIME_SWAPSWAPPERANDSPACE, EVENTKEYS_NULLVALUES);
     }
 
     private static final String[] EVENTKEYS_MAINKEYBOARDVIEW_ONLONGPRESS = {
@@ -1245,6 +1038,128 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
         getInstance().enqueuePotentiallyPrivateEvent(EVENTKEYS_POINTERTRACKER_ONMOVEEVENT, values);
     }
 
+    private static final String[] EVENTKEYS_RICHINPUTCONNECTION_COMMITCOMPLETION = {
+        "RichInputConnectionCommitCompletion", "completionInfo"
+    };
+    public static void richInputConnection_commitCompletion(final CompletionInfo completionInfo) {
+        final Object[] values = {
+            completionInfo
+        };
+        final ResearchLogger researchLogger = getInstance();
+        researchLogger.enqueuePotentiallyPrivateEvent(
+                EVENTKEYS_RICHINPUTCONNECTION_COMMITCOMPLETION, values);
+    }
+
+    // Disabled for privacy-protection reasons.  Because this event comes after
+    // richInputConnection_commitText, which is the event used to separate LogUnits, the
+    // data in this event can be associated with the next LogUnit, revealing information
+    // about the current word even if it was supposed to be suppressed.  The occurrance of
+    // autocorrection can be determined by examining the difference between the text strings in
+    // the last call to richInputConnection_setComposingText before
+    // richInputConnection_commitText, so it's not a data loss.
+    // TODO: Figure out how to log this event without loss of privacy.
+    /*
+    private static final String[] EVENTKEYS_RICHINPUTCONNECTION_COMMITCORRECTION = {
+        "RichInputConnectionCommitCorrection", "typedWord", "autoCorrection"
+    };
+    */
+    public static void richInputConnection_commitCorrection(CorrectionInfo correctionInfo) {
+        /*
+        final String typedWord = correctionInfo.getOldText().toString();
+        final String autoCorrection = correctionInfo.getNewText().toString();
+        final Object[] values = {
+            scrubDigitsFromString(typedWord), scrubDigitsFromString(autoCorrection)
+        };
+        final ResearchLogger researchLogger = getInstance();
+        researchLogger.enqueuePotentiallyPrivateEvent(
+                EVENTKEYS_RICHINPUTCONNECTION_COMMITCORRECTION, values);
+        */
+    }
+
+    private static final String[] EVENTKEYS_RICHINPUTCONNECTION_COMMITTEXT = {
+        "RichInputConnectionCommitText", "typedWord", "newCursorPosition"
+    };
+    public static void richInputConnection_commitText(final CharSequence typedWord,
+            final int newCursorPosition) {
+        final String scrubbedWord = scrubDigitsFromString(typedWord.toString());
+        final Object[] values = {
+            scrubbedWord, newCursorPosition
+        };
+        final ResearchLogger researchLogger = getInstance();
+        researchLogger.enqueuePotentiallyPrivateEvent(EVENTKEYS_RICHINPUTCONNECTION_COMMITTEXT,
+                values);
+        researchLogger.onWordComplete(scrubbedWord);
+    }
+
+    private static final String[] EVENTKEYS_RICHINPUTCONNECTION_DELETESURROUNDINGTEXT = {
+        "RichInputConnectionDeleteSurroundingText", "beforeLength", "afterLength"
+    };
+    public static void richInputConnection_deleteSurroundingText(final int beforeLength,
+            final int afterLength) {
+        final Object[] values = {
+            beforeLength, afterLength
+        };
+        getInstance().enqueuePotentiallyPrivateEvent(
+                EVENTKEYS_RICHINPUTCONNECTION_DELETESURROUNDINGTEXT, values);
+    }
+
+    private static final String[] EVENTKEYS_RICHINPUTCONNECTION_FINISHCOMPOSINGTEXT = {
+        "RichInputConnectionFinishComposingText"
+    };
+    public static void richInputConnection_finishComposingText() {
+        getInstance().enqueueEvent(EVENTKEYS_RICHINPUTCONNECTION_FINISHCOMPOSINGTEXT,
+                EVENTKEYS_NULLVALUES);
+    }
+
+    private static final String[] EVENTKEYS_RICHINPUTCONNECTION_PERFORMEDITORACTION = {
+        "RichInputConnectionPerformEditorAction", "imeActionNext"
+    };
+    public static void richInputConnection_performEditorAction(final int imeActionNext) {
+        final Object[] values = {
+            imeActionNext
+        };
+        getInstance().enqueueEvent(EVENTKEYS_RICHINPUTCONNECTION_PERFORMEDITORACTION, values);
+    }
+
+    private static final String[] EVENTKEYS_RICHINPUTCONNECTION_SENDKEYEVENT = {
+        "RichInputConnectionSendKeyEvent", "eventTime", "action", "code"
+    };
+    public static void richInputConnection_sendKeyEvent(final KeyEvent keyEvent) {
+        final Object[] values = {
+            keyEvent.getEventTime(),
+            keyEvent.getAction(),
+            keyEvent.getKeyCode()
+        };
+        getInstance().enqueuePotentiallyPrivateEvent(EVENTKEYS_RICHINPUTCONNECTION_SENDKEYEVENT,
+                values);
+    }
+
+    private static final String[] EVENTKEYS_RICHINPUTCONNECTION_SETCOMPOSINGTEXT = {
+        "RichInputConnectionSetComposingText", "text", "newCursorPosition"
+    };
+    public static void richInputConnection_setComposingText(final CharSequence text,
+            final int newCursorPosition) {
+        if (text == null) {
+            throw new RuntimeException("setComposingText is null");
+        }
+        final Object[] values = {
+            text, newCursorPosition
+        };
+        getInstance().enqueuePotentiallyPrivateEvent(EVENTKEYS_RICHINPUTCONNECTION_SETCOMPOSINGTEXT,
+                values);
+    }
+
+    private static final String[] EVENTKEYS_RICHINPUTCONNECTION_SETSELECTION = {
+        "RichInputConnectionSetSelection", "from", "to"
+    };
+    public static void richInputConnection_setSelection(final int from, final int to) {
+        final Object[] values = {
+            from, to
+        };
+        getInstance().enqueuePotentiallyPrivateEvent(EVENTKEYS_RICHINPUTCONNECTION_SETSELECTION,
+                values);
+    }
+
     private static final String[] EVENTKEYS_SUDDENJUMPINGTOUCHEVENTHANDLER_ONTOUCHEVENT = {
         "SuddenJumpingTouchEventHandlerOnTouchEvent", "motionEvent"
     };
@@ -1277,4 +1192,24 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
     public void userTimestamp() {
         getInstance().enqueueEvent(EVENTKEYS_USER_TIMESTAMP, EVENTKEYS_NULLVALUES);
     }
+
+    private static final String[] EVENTKEYS_STATISTICS = {
+        "Statistics", "charCount", "letterCount", "numberCount", "spaceCount", "deleteOpsCount",
+        "wordCount", "isEmptyUponStarting", "isEmptinessStateKnown", "averageTimeBetweenKeys",
+        "averageTimeBeforeDelete", "averageTimeDuringRepeatedDelete", "averageTimeAfterDelete"
+    };
+    private static void logStatistics() {
+        final ResearchLogger researchLogger = getInstance();
+        final Statistics statistics = researchLogger.mStatistics;
+        final Object[] values = {
+                statistics.mCharCount, statistics.mLetterCount, statistics.mNumberCount,
+                statistics.mSpaceCount, statistics.mDeleteKeyCount,
+                statistics.mWordCount, statistics.mIsEmptyUponStarting,
+                statistics.mIsEmptinessStateKnown, statistics.mKeyCounter.getAverageTime(),
+                statistics.mBeforeDeleteKeyCounter.getAverageTime(),
+                statistics.mDuringRepeatedDeleteKeysCounter.getAverageTime(),
+                statistics.mAfterDeleteKeyCounter.getAverageTime()
+        };
+        researchLogger.enqueueEvent(EVENTKEYS_STATISTICS, values);
+    }
 }
diff --git a/java/src/com/android/inputmethod/research/Statistics.java b/java/src/com/android/inputmethod/research/Statistics.java
new file mode 100644
index 000000000..eab465aa2
--- /dev/null
+++ b/java/src/com/android/inputmethod/research/Statistics.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.android.inputmethod.research;
+
+import com.android.inputmethod.keyboard.Keyboard;
+
+public class Statistics {
+    // Number of characters entered during a typing session
+    int mCharCount;
+    // Number of letter characters entered during a typing session
+    int mLetterCount;
+    // Number of number characters entered
+    int mNumberCount;
+    // Number of space characters entered
+    int mSpaceCount;
+    // Number of delete operations entered (taps on the backspace key)
+    int mDeleteKeyCount;
+    // Number of words entered during a session.
+    int mWordCount;
+    // Whether the text field was empty upon editing
+    boolean mIsEmptyUponStarting;
+    boolean mIsEmptinessStateKnown;
+
+    // Timers to count average time to enter a key, first press a delete key,
+    // between delete keys, and then to return typing after a delete key.
+    final AverageTimeCounter mKeyCounter = new AverageTimeCounter();
+    final AverageTimeCounter mBeforeDeleteKeyCounter = new AverageTimeCounter();
+    final AverageTimeCounter mDuringRepeatedDeleteKeysCounter = new AverageTimeCounter();
+    final AverageTimeCounter mAfterDeleteKeyCounter = new AverageTimeCounter();
+
+    static class AverageTimeCounter {
+        int mCount;
+        int mTotalTime;
+
+        public void reset() {
+            mCount = 0;
+            mTotalTime = 0;
+        }
+
+        public void add(long deltaTime) {
+            mCount++;
+            mTotalTime += deltaTime;
+        }
+
+        public int getAverageTime() {
+            if (mCount == 0) {
+                return 0;
+            }
+            return mTotalTime / mCount;
+        }
+    }
+
+    // To account for the interruptions when the user's attention is directed elsewhere, times
+    // longer than MIN_TYPING_INTERMISSION are not counted when estimating this statistic.
+    public static final int MIN_TYPING_INTERMISSION = 2 * 1000;  // in milliseconds
+    public static final int MIN_DELETION_INTERMISSION = 10 * 1000;  // in milliseconds
+
+    // The last time that a tap was performed
+    private long mLastTapTime;
+    // The type of the last keypress (delete key or not)
+    boolean mIsLastKeyDeleteKey;
+
+    private static final Statistics sInstance = new Statistics();
+
+    public static Statistics getInstance() {
+        return sInstance;
+    }
+
+    private Statistics() {
+        reset();
+    }
+
+    public void reset() {
+        mCharCount = 0;
+        mLetterCount = 0;
+        mNumberCount = 0;
+        mSpaceCount = 0;
+        mDeleteKeyCount = 0;
+        mWordCount = 0;
+        mIsEmptyUponStarting = true;
+        mIsEmptinessStateKnown = false;
+        mKeyCounter.reset();
+        mBeforeDeleteKeyCounter.reset();
+        mDuringRepeatedDeleteKeysCounter.reset();
+        mAfterDeleteKeyCounter.reset();
+
+        mLastTapTime = 0;
+        mIsLastKeyDeleteKey = false;
+    }
+
+    public void recordChar(int codePoint, long time) {
+        final long delta = time - mLastTapTime;
+        if (codePoint == Keyboard.CODE_DELETE) {
+            mDeleteKeyCount++;
+            if (delta < MIN_DELETION_INTERMISSION) {
+                if (mIsLastKeyDeleteKey) {
+                    mDuringRepeatedDeleteKeysCounter.add(delta);
+                } else {
+                    mBeforeDeleteKeyCounter.add(delta);
+                }
+            }
+            mIsLastKeyDeleteKey = true;
+        } else {
+            mCharCount++;
+            if (Character.isDigit(codePoint)) {
+                mNumberCount++;
+            }
+            if (Character.isLetter(codePoint)) {
+                mLetterCount++;
+            }
+            if (Character.isSpaceChar(codePoint)) {
+                mSpaceCount++;
+            }
+            if (mIsLastKeyDeleteKey && delta < MIN_DELETION_INTERMISSION) {
+                mAfterDeleteKeyCounter.add(delta);
+            } else if (!mIsLastKeyDeleteKey && delta < MIN_TYPING_INTERMISSION) {
+                mKeyCounter.add(delta);
+            }
+            mIsLastKeyDeleteKey = false;
+        }
+        mLastTapTime = time;
+    }
+
+    public void recordWordEntered() {
+        mWordCount++;
+    }
+
+    public void setIsEmptyUponStarting(final boolean isEmpty) {
+        mIsEmptyUponStarting = isEmpty;
+        mIsEmptinessStateKnown = true;
+    }
+}
author	Satoshi Kataoka <satok@google.com>	2012-08-06 16:04:07 +0900
committer	Satoshi Kataoka <satok@google.com>	2012-08-06 16:04:07 +0900
commit	44456dcbf23c29b54e9372d932b79805957724cb (patch)
tree	a8167c70e9d7017f212066cf2364d1ad5b09fdca /java/src
parent	07e4f9eb530a795efd97986e28546c8c5e895c72 (diff)
parent	d299bde24b4afd3955fa65c7ab372807a336c6df (diff)
download	latinime-44456dcbf23c29b54e9372d932b79805957724cb.tar.gz latinime-44456dcbf23c29b54e9372d932b79805957724cb.tar.xz latinime-44456dcbf23c29b54e9372d932b79805957724cb.zip