diff --git a/java/src/com/android/inputmethod/keyboard/KeyDetector.java b/java/src/com/android/inputmethod/keyboard/KeyDetector.java
index 13e909c7e..9abc79d3c 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyDetector.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyDetector.java
@@ -53,6 +53,7 @@ public class KeyDetector {
         return x + mCorrectionX;
     }
 
+    // TODO: Remove vertical correction.
     public int getTouchY(int y) {
         return y + mCorrectionY;
     }
diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardActionListener.java b/java/src/com/android/inputmethod/keyboard/KeyboardActionListener.java
index 275aacf36..c41d24529 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardActionListener.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardActionListener.java
@@ -52,6 +52,7 @@ public interface KeyboardActionListener {
      */
     public void onCodeInput(int primaryCode, int x, int y);
 
+    // See {@link Adapter#isInvalidCoordinate(int)}.
     public static final int NOT_A_TOUCH_COORDINATE = -1;
     public static final int SUGGESTION_STRIP_COORDINATE = -2;
     public static final int SPELL_CHECKER_COORDINATE = -3;
@@ -89,5 +90,13 @@ public interface KeyboardActionListener {
         public boolean onCustomRequest(int requestCode) {
             return false;
         }
+
+        // TODO: Remove this method when the vertical correction is removed.
+        public static boolean isInvalidCoordinate(int coordinate) {
+            // Detect {@link KeyboardActionListener#NOT_A_TOUCH_COORDINATE},
+            // {@link KeyboardActionListener#SUGGESTION_STRIP_COORDINATE}, and
+            // {@link KeyboardActionListener#SPELL_CHECKER_COORDINATE}.
+            return coordinate < 0;
+        }
     }
 }
diff --git a/java/src/com/android/inputmethod/latin/LatinIME.java b/java/src/com/android/inputmethod/latin/LatinIME.java
index d4362f79e..722f323a2 100644
--- a/java/src/com/android/inputmethod/latin/LatinIME.java
+++ b/java/src/com/android/inputmethod/latin/LatinIME.java
@@ -63,6 +63,7 @@ import com.android.inputmethod.accessibility.AccessibleKeyboardViewProxy;
 import com.android.inputmethod.compat.CompatUtils;
 import com.android.inputmethod.compat.InputMethodManagerCompatWrapper;
 import com.android.inputmethod.compat.SuggestionSpanUtils;
+import com.android.inputmethod.keyboard.KeyDetector;
 import com.android.inputmethod.keyboard.Keyboard;
 import com.android.inputmethod.keyboard.KeyboardActionListener;
 import com.android.inputmethod.keyboard.KeyboardId;
@@ -1505,8 +1506,18 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
             clearSuggestions();
         }
         if (isComposingWord) {
-            mWordComposer.add(
-                    primaryCode, x, y, mKeyboardSwitcher.getKeyboardView().getKeyDetector());
+            final int keyX, keyY;
+            if (KeyboardActionListener.Adapter.isInvalidCoordinate(x)
+                    || KeyboardActionListener.Adapter.isInvalidCoordinate(y)) {
+                keyX = x;
+                keyY = y;
+            } else {
+                final KeyDetector keyDetector =
+                        mKeyboardSwitcher.getKeyboardView().getKeyDetector();
+                keyX = keyDetector.getTouchX(x);
+                keyY = keyDetector.getTouchY(y);
+            }
+            mWordComposer.add(primaryCode, keyX, keyY);
             // If it's the first letter, make note of auto-caps state
             if (mWordComposer.size() == 1) {
                 mWordComposer.setAutoCapitalized(
diff --git a/java/src/com/android/inputmethod/latin/WordComposer.java b/java/src/com/android/inputmethod/latin/WordComposer.java
index 98282f970..f23dc520a 100644
--- a/java/src/com/android/inputmethod/latin/WordComposer.java
+++ b/java/src/com/android/inputmethod/latin/WordComposer.java
@@ -19,7 +19,6 @@ package com.android.inputmethod.latin;
 import com.android.inputmethod.keyboard.Key;
 import com.android.inputmethod.keyboard.KeyDetector;
 import com.android.inputmethod.keyboard.Keyboard;
-import com.android.inputmethod.keyboard.KeyboardActionListener;
 
 import java.util.Arrays;
 
@@ -121,28 +120,10 @@ public class WordComposer {
         return previous && !Character.isUpperCase(codePoint);
     }
 
-    // TODO: remove input keyDetector
-    public void add(int primaryCode, int x, int y, KeyDetector keyDetector) {
-        final int keyX;
-        final int keyY;
-        if (null == keyDetector
-                || x == KeyboardActionListener.SUGGESTION_STRIP_COORDINATE
-                || y == KeyboardActionListener.SUGGESTION_STRIP_COORDINATE
-                || x == KeyboardActionListener.NOT_A_TOUCH_COORDINATE
-                || y == KeyboardActionListener.NOT_A_TOUCH_COORDINATE) {
-            keyX = x;
-            keyY = y;
-        } else {
-            keyX = keyDetector.getTouchX(x);
-            keyY = keyDetector.getTouchY(y);
-        }
-        add(primaryCode, keyX, keyY);
-    }
-
     /**
      * Add a new keystroke, with the pressed key's code point with the touch point coordinates.
      */
-    private void add(int primaryCode, int keyX, int keyY) {
+    public void add(int primaryCode, int keyX, int keyY) {
         final int newIndex = size();
         mTypedWord.appendCodePoint(primaryCode);
         refreshSize();
diff --git a/java/src/com/android/inputmethod/latin/spellcheck/AndroidSpellCheckerService.java b/java/src/com/android/inputmethod/latin/spellcheck/AndroidSpellCheckerService.java
index 5f4d66091..5332c066a 100644
--- a/java/src/com/android/inputmethod/latin/spellcheck/AndroidSpellCheckerService.java
+++ b/java/src/com/android/inputmethod/latin/spellcheck/AndroidSpellCheckerService.java
@@ -768,9 +768,9 @@ public class AndroidSpellCheckerService extends SpellCheckerService
                             codePoint, mScript);
                     if (SpellCheckerProximityInfo.NOT_A_COORDINATE_PAIR == xy) {
                         composer.add(codePoint, WordComposer.NOT_A_COORDINATE,
-                                WordComposer.NOT_A_COORDINATE, null);
+                                WordComposer.NOT_A_COORDINATE);
                     } else {
-                        composer.add(codePoint, xy & 0xFFFF, xy >> 16, null);
+                        composer.add(codePoint, xy & 0xFFFF, xy >> 16);
                     }
                 }