diff --git a/java/src/com/android/inputmethod/keyboard/Keyboard.java b/java/src/com/android/inputmethod/keyboard/Keyboard.java
index dd2e3d3..a1b1f5d 100644
--- a/java/src/com/android/inputmethod/keyboard/Keyboard.java
+++ b/java/src/com/android/inputmethod/keyboard/Keyboard.java
@@ -24,8 +24,6 @@
 import com.android.inputmethod.latin.CollectionUtils;
 import com.android.inputmethod.latin.Constants;
 
-
-
 /**
  * Loads an XML description of a keyboard and stores the attributes of the keys. A keyboard
  * consists of rows of keys.
diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardActionListener.java b/java/src/com/android/inputmethod/keyboard/KeyboardActionListener.java
index e7a4e82..b612f09 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardActionListener.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardActionListener.java
@@ -112,13 +112,5 @@
         public boolean onCustomRequest(int requestCode) {
             return false;
         }
-
-        // TODO: Remove this method when the vertical correction is removed.
-        public static boolean isInvalidCoordinate(final int coordinate) {
-            // Detect {@link Constants#NOT_A_COORDINATE},
-            // {@link Constants#SUGGESTION_STRIP_COORDINATE}, and
-            // {@link Constants#SPELL_CHECKER_COORDINATE}.
-            return coordinate < 0;
-        }
     }
 }
diff --git a/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java b/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java
index 5871df8..de9b92f 100644
--- a/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java
+++ b/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java
@@ -207,7 +207,9 @@
 
         private void startKeyRepeatTimer(final PointerTracker tracker, final long delay) {
             final Key key = tracker.getKey();
-            if (key == null) return;
+            if (key == null) {
+                return;
+            }
             sendMessageDelayed(obtainMessage(MSG_REPEAT_KEY, key.mCode, 0, tracker), delay);
         }
 
@@ -416,7 +418,9 @@
     }
 
     private ObjectAnimator loadObjectAnimator(final int resId, final Object target) {
-        if (resId == 0) return null;
+        if (resId == 0) {
+            return null;
+        }
         final ObjectAnimator animator = (ObjectAnimator)AnimatorInflater.loadAnimator(
                 getContext(), resId);
         if (animator != null) {
@@ -552,21 +556,25 @@
         }
 
         // Check if we are already displaying popup panel.
-        if (mMoreKeysPanel != null)
+        if (mMoreKeysPanel != null) {
             return false;
-        if (parentKey == null)
+        }
+        if (parentKey == null) {
             return false;
+        }
         return onLongPress(parentKey, tracker);
     }
 
     // This default implementation returns a more keys panel.
     protected MoreKeysPanel onCreateMoreKeysPanel(final Key parentKey) {
-        if (parentKey.mMoreKeys == null)
+        if (parentKey.mMoreKeys == null) {
             return null;
+        }
 
         final View container = LayoutInflater.from(getContext()).inflate(mMoreKeysLayout, null);
-        if (container == null)
+        if (container == null) {
             throw new NullPointerException();
+        }
 
         final MoreKeysKeyboardView moreKeysKeyboardView =
                 (MoreKeysKeyboardView)container.findViewById(R.id.more_keys_keyboard_view);
@@ -627,8 +635,9 @@
         MoreKeysPanel moreKeysPanel = mMoreKeysPanelCache.get(parentKey);
         if (moreKeysPanel == null) {
             moreKeysPanel = onCreateMoreKeysPanel(parentKey);
-            if (moreKeysPanel == null)
+            if (moreKeysPanel == null) {
                 return false;
+            }
             mMoreKeysPanelCache.put(parentKey, moreKeysPanel);
         }
         if (mMoreKeysWindow == null) {
@@ -664,9 +673,8 @@
     public boolean isInSlidingKeyInput() {
         if (mMoreKeysPanel != null) {
             return true;
-        } else {
-            return PointerTracker.isAnyInSlidingKeyInput();
         }
+        return PointerTracker.isAnyInSlidingKeyInput();
     }
 
     public int getPointerCount() {
@@ -839,14 +847,14 @@
 
     @Override
     public boolean dismissMoreKeysPanel() {
-        if (mMoreKeysWindow != null && mMoreKeysWindow.isShowing()) {
-            mMoreKeysWindow.dismiss();
-            mMoreKeysPanel = null;
-            mMoreKeysPanelPointerTrackerId = -1;
-            dimEntireKeyboard(false);
-            return true;
+        if (mMoreKeysWindow == null || !mMoreKeysWindow.isShowing()) {
+            return false;
         }
-        return false;
+        mMoreKeysWindow.dismiss();
+        mMoreKeysPanel = null;
+        mMoreKeysPanelPointerTrackerId = -1;
+        dimEntireKeyboard(false);
+        return true;
     }
 
     /**
@@ -869,16 +877,22 @@
 
     public void updateShortcutKey(final boolean available) {
         final Keyboard keyboard = getKeyboard();
-        if (keyboard == null) return;
+        if (keyboard == null) {
+            return;
+        }
         final Key shortcutKey = keyboard.getKey(Constants.CODE_SHORTCUT);
-        if (shortcutKey == null) return;
+        if (shortcutKey == null) {
+            return;
+        }
         shortcutKey.setEnabled(available);
         invalidateKey(shortcutKey);
     }
 
     private void updateAltCodeKeyWhileTyping() {
         final Keyboard keyboard = getKeyboard();
-        if (keyboard == null) return;
+        if (keyboard == null) {
+            return;
+        }
         for (final Key key : keyboard.mAltCodeKeysWhileTyping) {
             invalidateKey(key);
         }
@@ -908,7 +922,9 @@
     }
 
     public void updateAutoCorrectionState(final boolean isAutoCorrection) {
-        if (!mAutoCorrectionSpacebarLedEnabled) return;
+        if (!mAutoCorrectionSpacebarLedEnabled) {
+            return;
+        }
         mAutoCorrectionSpacebarLedOn = isAutoCorrection;
         invalidateKey(mSpaceKey);
     }
@@ -936,10 +952,14 @@
     private boolean fitsTextIntoWidth(final int width, final String text, final Paint paint) {
         paint.setTextScaleX(1.0f);
         final float textWidth = getLabelWidth(text, paint);
-        if (textWidth < width) return true;
+        if (textWidth < width) {
+            return true;
+        }
 
         final float scaleX = width / textWidth;
-        if (scaleX < MINIMUM_XSCALE_OF_LANGUAGE_NAME) return false;
+        if (scaleX < MINIMUM_XSCALE_OF_LANGUAGE_NAME) {
+            return false;
+        }
 
         paint.setTextScaleX(scaleX);
         return getLabelWidth(text, paint) < width;
@@ -949,19 +969,19 @@
     private String layoutLanguageOnSpacebar(final Paint paint, final InputMethodSubtype subtype,
             final int width) {
         // Choose appropriate language name to fit into the width.
-        String text = getFullDisplayName(subtype, getResources());
-        if (fitsTextIntoWidth(width, text, paint)) {
-            return text;
+        final String fullText = getFullDisplayName(subtype, getResources());
+        if (fitsTextIntoWidth(width, fullText, paint)) {
+            return fullText;
         }
 
-        text = getMiddleDisplayName(subtype);
-        if (fitsTextIntoWidth(width, text, paint)) {
-            return text;
+        final String middleText = getMiddleDisplayName(subtype);
+        if (fitsTextIntoWidth(width, middleText, paint)) {
+            return middleText;
         }
 
-        text = getShortDisplayName(subtype);
-        if (fitsTextIntoWidth(width, text, paint)) {
-            return text;
+        final String shortText = getShortDisplayName(subtype);
+        if (fitsTextIntoWidth(width, shortText, paint)) {
+            return shortText;
         }
 
         return "";
diff --git a/java/src/com/android/inputmethod/keyboard/PointerTracker.java b/java/src/com/android/inputmethod/keyboard/PointerTracker.java
index f3e366a..77e7812 100644
--- a/java/src/com/android/inputmethod/keyboard/PointerTracker.java
+++ b/java/src/com/android/inputmethod/keyboard/PointerTracker.java
@@ -1167,38 +1167,38 @@
         final Key curKey = mCurrentKey;
         if (newKey == curKey) {
             return false;
-        } else if (curKey != null) {
-            final int keyHysteresisDistanceSquared = mKeyDetector.getKeyHysteresisDistanceSquared(
-                    mIsInSlidingKeyInputFromModifier);
-            final int distanceFromKeyEdgeSquared = curKey.squaredDistanceToEdge(x, y);
-            if (distanceFromKeyEdgeSquared >= keyHysteresisDistanceSquared) {
-                if (DEBUG_MODE) {
-                    final float distanceToEdgeRatio = (float)Math.sqrt(distanceFromKeyEdgeSquared)
-                            / mKeyboard.mMostCommonKeyWidth;
-                    Log.d(TAG, String.format("[%d] isMajorEnoughMoveToBeOnNewKey:"
-                            +" %.2f key width from key edge",
-                            mPointerId, distanceToEdgeRatio));
-                }
-                return true;
-            }
-            if (sNeedsProximateBogusDownMoveUpEventHack && !mIsAllowedSlidingKeyInput
-                    && sTimeRecorder.isInFastTyping(eventTime)
-                    && mBogusMoveEventDetector.hasTraveledLongDistance(x, y)) {
-                if (DEBUG_MODE) {
-                    final float keyDiagonal = (float)Math.hypot(
-                            mKeyboard.mMostCommonKeyWidth, mKeyboard.mMostCommonKeyHeight);
-                    final float lengthFromDownRatio =
-                            mBogusMoveEventDetector.mAccumulatedDistanceFromDownKey / keyDiagonal;
-                    Log.d(TAG, String.format("[%d] isMajorEnoughMoveToBeOnNewKey:"
-                            + " %.2f key diagonal from virtual down point",
-                            mPointerId, lengthFromDownRatio));
-                }
-                return true;
-            }
-            return false;
-        } else { // curKey == null && newKey != null
+        }
+        if (curKey == null /* && newKey != null */) {
             return true;
         }
+        // Here curKey points to the different key from newKey.
+        final int keyHysteresisDistanceSquared = mKeyDetector.getKeyHysteresisDistanceSquared(
+                mIsInSlidingKeyInputFromModifier);
+        final int distanceFromKeyEdgeSquared = curKey.squaredDistanceToEdge(x, y);
+        if (distanceFromKeyEdgeSquared >= keyHysteresisDistanceSquared) {
+            if (DEBUG_MODE) {
+                final float distanceToEdgeRatio = (float)Math.sqrt(distanceFromKeyEdgeSquared)
+                        / mKeyboard.mMostCommonKeyWidth;
+                Log.d(TAG, String.format("[%d] isMajorEnoughMoveToBeOnNewKey:"
+                        +" %.2f key width from key edge", mPointerId, distanceToEdgeRatio));
+            }
+            return true;
+        }
+        if (sNeedsProximateBogusDownMoveUpEventHack && !mIsAllowedSlidingKeyInput
+                && sTimeRecorder.isInFastTyping(eventTime)
+                && mBogusMoveEventDetector.hasTraveledLongDistance(x, y)) {
+            if (DEBUG_MODE) {
+                final float keyDiagonal = (float)Math.hypot(
+                        mKeyboard.mMostCommonKeyWidth, mKeyboard.mMostCommonKeyHeight);
+                final float lengthFromDownRatio =
+                        mBogusMoveEventDetector.mAccumulatedDistanceFromDownKey / keyDiagonal;
+                Log.d(TAG, String.format("[%d] isMajorEnoughMoveToBeOnNewKey:"
+                        + " %.2f key diagonal from virtual down point",
+                        mPointerId, lengthFromDownRatio));
+            }
+            return true;
+        }
+        return false;
     }
 
     private void startLongPressTimer(final Key key) {
diff --git a/java/src/com/android/inputmethod/latin/Constants.java b/java/src/com/android/inputmethod/latin/Constants.java
index fa6ff18..ba932e5 100644
--- a/java/src/com/android/inputmethod/latin/Constants.java
+++ b/java/src/com/android/inputmethod/latin/Constants.java
@@ -16,7 +16,6 @@
 
 package com.android.inputmethod.latin;
 
-
 public final class Constants {
     public static final class Color {
         /**
@@ -137,11 +136,16 @@
 
     public static final int NOT_A_CODE = -1;
 
-    // See {@link KeyboardActionListener.Adapter#isInvalidCoordinate(int)}.
     public static final int NOT_A_COORDINATE = -1;
     public static final int SUGGESTION_STRIP_COORDINATE = -2;
     public static final int SPELL_CHECKER_COORDINATE = -3;
 
+    public static boolean isValidCoordinate(final int coordinate) {
+        // Detect {@link NOT_A_COORDINATE}, {@link SUGGESTION_STRIP_COORDINATE},
+        // and {@link SPELL_CHECKER_COORDINATE}.
+        return coordinate >= 0;
+    }
+
     /**
      * Some common keys code. Must be positive.
      */
diff --git a/java/src/com/android/inputmethod/latin/LatinIME.java b/java/src/com/android/inputmethod/latin/LatinIME.java
index c66ff95..2af7b1d 100644
--- a/java/src/com/android/inputmethod/latin/LatinIME.java
+++ b/java/src/com/android/inputmethod/latin/LatinIME.java
@@ -1741,15 +1741,14 @@
         }
         if (isComposingWord) {
             final int keyX, keyY;
-            if (KeyboardActionListener.Adapter.isInvalidCoordinate(x)
-                    || KeyboardActionListener.Adapter.isInvalidCoordinate(y)) {
-                keyX = x;
-                keyY = y;
-            } else {
+            if (Constants.isValidCoordinate(x) && Constants.isValidCoordinate(y)) {
                 final KeyDetector keyDetector =
                         mKeyboardSwitcher.getMainKeyboardView().getKeyDetector();
                 keyX = keyDetector.getTouchX(x);
                 keyY = keyDetector.getTouchY(y);
+            } else {
+                keyX = x;
+                keyY = y;
             }
             mWordComposer.add(primaryCode, keyX, keyY);
             // If it's the first letter, make note of auto-caps state