Merge remote branch 'goog/master' into merge

Conflicts:
	java/res/values-cs/strings.xml
	java/res/values-da/strings.xml
	java/res/values-de/strings.xml
	java/res/values-el/strings.xml
	java/res/values-es-rUS/strings.xml
	java/res/values-es/strings.xml
	java/res/values-fr/strings.xml
	java/res/values-it/strings.xml
	java/res/values-ja/strings.xml
	java/res/values-ko/strings.xml
	java/res/values-nb/strings.xml
	java/res/values-nl/strings.xml
	java/res/values-pl/strings.xml
	java/res/values-pt-rPT/strings.xml
	java/res/values-pt/strings.xml
	java/res/values-ru/strings.xml
	java/res/values-sv/strings.xml
	java/res/values-tr/strings.xml
	java/res/values-xlarge/dimens.xml
	java/res/values-zh-rCN/strings.xml
	java/res/values-zh-rTW/strings.xml
	java/res/values/bools.xml
	java/res/xml/kbd_qwerty_rows.xml
	java/res/xml/method.xml
	java/res/xml/prefs.xml

Change-Id: I8768d16965e6e82c14ee742b9ada56438497eb86

1 files changed, 223 insertions, 430 deletions

diff --git a/java/src/com/android/inputmethod/latin/CandidateView.java b/java/src/com/android/inputmethod/latin/CandidateView.java
index 0f5b43009..30f4a59f9 100755..100644
--- a/java/src/com/android/inputmethod/latin/CandidateView.java
+++ b/java/src/com/android/inputmethod/latin/CandidateView.java
@@ -1,12 +1,12 @@
 /*
- * Copyright (C) 2008 The Android Open Source Project
- * 
+ * Copyright (C) 2010 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
@@ -16,99 +16,101 @@
 
 package com.android.inputmethod.latin;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-
 import android.content.Context;
 import android.content.res.Resources;
-import android.graphics.Canvas;
-import android.graphics.Paint;
-import android.graphics.Rect;
 import android.graphics.Typeface;
-import android.graphics.Paint.Align;
-import android.graphics.drawable.Drawable;
 import android.os.Handler;
 import android.os.Message;
+import android.text.Spannable;
+import android.text.SpannableString;
+import android.text.Spanned;
+import android.text.TextUtils;
+import android.text.style.BackgroundColorSpan;
+import android.text.style.CharacterStyle;
+import android.text.style.ForegroundColorSpan;
+import android.text.style.StyleSpan;
+import android.text.style.UnderlineSpan;
 import android.util.AttributeSet;
-import android.view.GestureDetector;
 import android.view.Gravity;
 import android.view.LayoutInflater;
-import android.view.MotionEvent;
 import android.view.View;
-import android.view.ViewGroup.LayoutParams;
+import android.view.View.OnClickListener;
+import android.view.View.OnLongClickListener;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
 import android.widget.PopupWindow;
 import android.widget.TextView;
 
-public class CandidateView extends View {
-
-    private static final int OUT_OF_BOUNDS = -1;
-    private static final List<CharSequence> EMPTY_LIST = new ArrayList<CharSequence>();
+import java.util.ArrayList;
 
+public class CandidateView extends LinearLayout implements OnClickListener, OnLongClickListener {
     private LatinIME mService;
-    private List<CharSequence> mSuggestions = EMPTY_LIST;
-    private boolean mShowingCompletions;
-    private CharSequence mSelectedString;
-    private int mSelectedIndex;
-    private int mTouchX = OUT_OF_BOUNDS;
-    private Drawable mSelectionHighlight;
-    private boolean mTypedWordValid;
-    
-    private boolean mHaveMinimalSuggestion;
-    
-    private Rect mBgPadding;
+    private final ArrayList<View> mWords = new ArrayList<View>();
 
-    private TextView mPreviewText;
-    private PopupWindow mPreviewPopup;
-    private int mCurrentWordIndex;
-    private Drawable mDivider;
-    
-    private static final int MAX_SUGGESTIONS = 32;
-    private static final int SCROLL_PIXELS = 20;
-    
-    private static final int MSG_REMOVE_PREVIEW = 1;
-    private static final int MSG_REMOVE_THROUGH_PREVIEW = 2;
+    private final TextView mPreviewText;
+    private final PopupWindow mPreviewPopup;
     
-    private int[] mWordWidth = new int[MAX_SUGGESTIONS];
-    private int[] mWordX = new int[MAX_SUGGESTIONS];
-    private int mPopupPreviewX;
-    private int mPopupPreviewY;
-
-    private static final int X_GAP = 10;
-    
-    private int mColorNormal;
-    private int mColorRecommended;
-    private int mColorOther;
-    private Paint mPaint;
-    private int mDescent;
-    private boolean mScrolled;
+    private static final int MAX_SUGGESTIONS = 16;
+
+    private final boolean mConfigCandidateHighlightFontColorEnabled;
+    private final int mColorNormal;
+    private final int mColorRecommended;
+    private final int mColorOther;
+    private static final CharacterStyle BOLD_SPAN = new StyleSpan(Typeface.BOLD);
+    private static final CharacterStyle UNDERLINE_SPAN = new UnderlineSpan();
+    private final CharacterStyle mInvertedForegroundColorSpan;
+    private final CharacterStyle mInvertedBackgroundColorSpan;
+
+    private SuggestedWords mSuggestions = SuggestedWords.EMPTY;
+    private boolean mShowingAutoCorrectionInverted;
     private boolean mShowingAddToDictionary;
-    private CharSequence mAddToDictionaryHint;
 
-    private int mTargetScrollX;
+    private final UiHandler mHandler = new UiHandler();
 
-    private int mMinTouchableWidth;
+    private class UiHandler extends Handler {
+        private static final int MSG_HIDE_PREVIEW = 0;
+        private static final int MSG_UPDATE_SUGGESTION = 1;
 
-    private int mTotalWidth;
-    
-    private GestureDetector mGestureDetector;
+        private static final long DELAY_HIDE_PREVIEW = 1000;
+        private static final long DELAY_UPDATE_SUGGESTION = 300;
 
-    Handler mHandler = new Handler() {
         @Override
-        public void handleMessage(Message msg) {
+        public void dispatchMessage(Message msg) {
             switch (msg.what) {
-                case MSG_REMOVE_PREVIEW:
-                    mPreviewText.setVisibility(GONE);
-                    break;
-                case MSG_REMOVE_THROUGH_PREVIEW:
-                    mPreviewText.setVisibility(GONE);
-                    if (mTouchX != OUT_OF_BOUNDS) {
-                        removeHighlight();
-                    }
-                    break;
+            case MSG_HIDE_PREVIEW:
+                hidePreview();
+                break;
+            case MSG_UPDATE_SUGGESTION:
+                updateSuggestions();
+                break;
             }
         }
-    };
+
+        public void postHidePreview() {
+            cancelHidePreview();
+            sendMessageDelayed(obtainMessage(MSG_HIDE_PREVIEW), DELAY_HIDE_PREVIEW);
+        }
+
+        public void cancelHidePreview() {
+            removeMessages(MSG_HIDE_PREVIEW);
+        }
+
+        public void postUpdateSuggestions() {
+            cancelUpdateSuggestions();
+            sendMessageDelayed(obtainMessage(MSG_UPDATE_SUGGESTION),
+                    DELAY_UPDATE_SUGGESTION);
+        }
+
+        public void cancelUpdateSuggestions() {
+            removeMessages(MSG_UPDATE_SUGGESTION);
+        }
+
+        public void cancelAllMessages() {
+            cancelHidePreview();
+            cancelUpdateSuggestions();
+        }
+    }
 
     /**
      * Construct a CandidateView for showing suggested words for completion.
@@ -117,81 +119,40 @@ public class CandidateView extends View {
      */
     public CandidateView(Context context, AttributeSet attrs) {
         super(context, attrs);
-        mSelectionHighlight = context.getResources().getDrawable(
-                R.drawable.list_selector_background_pressed);
 
-        LayoutInflater inflate =
-            (LayoutInflater) context
-                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
         Resources res = context.getResources();
         mPreviewPopup = new PopupWindow(context);
-        mPreviewText = (TextView) inflate.inflate(R.layout.candidate_preview, null);
-        mPreviewPopup.setWindowLayoutMode(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
+        LayoutInflater inflater = LayoutInflater.from(context);
+        mPreviewText = (TextView) inflater.inflate(R.layout.candidate_preview, null);
+        mPreviewPopup.setWindowLayoutMode(ViewGroup.LayoutParams.WRAP_CONTENT,
+                ViewGroup.LayoutParams.WRAP_CONTENT);
         mPreviewPopup.setContentView(mPreviewText);
         mPreviewPopup.setBackgroundDrawable(null);
+        mPreviewPopup.setAnimationStyle(R.style.KeyPreviewAnimation);
+        mConfigCandidateHighlightFontColorEnabled =
+                res.getBoolean(R.bool.config_candidate_highlight_font_color_enabled);
         mColorNormal = res.getColor(R.color.candidate_normal);
         mColorRecommended = res.getColor(R.color.candidate_recommended);
         mColorOther = res.getColor(R.color.candidate_other);
-        mDivider = res.getDrawable(R.drawable.keyboard_suggest_strip_divider);
-        mAddToDictionaryHint = res.getString(R.string.hint_add_to_dictionary);
-
-        mPaint = new Paint();
-        mPaint.setColor(mColorNormal);
-        mPaint.setAntiAlias(true);
-        mPaint.setTextSize(mPreviewText.getTextSize());
-        mPaint.setStrokeWidth(0);
-        mPaint.setTextAlign(Align.CENTER);
-        mDescent = (int) mPaint.descent();
-        // 50 pixels for a 160dpi device would mean about 0.3 inch
-        mMinTouchableWidth = (int) (getResources().getDisplayMetrics().density * 50);
-        
-        // Slightly reluctant to scroll to be able to easily choose the suggestion
-        // 50 pixels for a 160dpi device would mean about 0.3 inch
-        final int touchSlop = (int) (getResources().getDisplayMetrics().density * 50);
-        final int touchSlopSquare = touchSlop * touchSlop;
-        mGestureDetector = new GestureDetector(new GestureDetector.SimpleOnGestureListener() {
-            @Override
-            public void onLongPress(MotionEvent me) {
-                if (mSuggestions.size() > 0) {
-                    if (me.getX() + getScrollX() < mWordWidth[0] && getScrollX() < 10) {
-                        longPressFirstWord();
-                    }
-                }
-            }
-            
-            @Override
-            public boolean onScroll(MotionEvent e1, MotionEvent e2,
-                    float distanceX, float distanceY) {
-                final int deltaX = (int) (e2.getX() - e1.getX());
-                final int deltaY = (int) (e2.getY() - e1.getY());
-                final int distance = (deltaX * deltaX) + (deltaY * deltaY);
-                if (distance < touchSlopSquare) {
-                    return false;
-                }
+        mInvertedForegroundColorSpan = new ForegroundColorSpan(mColorNormal ^ 0x00ffffff);
+        mInvertedBackgroundColorSpan = new BackgroundColorSpan(mColorNormal);
+
+        for (int i = 0; i < MAX_SUGGESTIONS; i++) {
+            View v = inflater.inflate(R.layout.candidate, null);
+            TextView tv = (TextView)v.findViewById(R.id.candidate_word);
+            tv.setTag(i);
+            tv.setOnClickListener(this);
+            if (i == 0)
+                tv.setOnLongClickListener(this);
+            ImageView divider = (ImageView)v.findViewById(R.id.candidate_divider);
+            // Do not display divider of first candidate.
+            divider.setVisibility(i == 0 ? GONE : VISIBLE);
+            mWords.add(v);
+        }
 
-                final int width = getWidth();
-                mScrolled = true;
-                int scrollX = getScrollX();
-                scrollX += (int) distanceX;
-                if (scrollX < 0) {
-                    scrollX = 0;
-                }
-                if (distanceX > 0 && scrollX + width > mTotalWidth) {
-                    scrollX -= (int) distanceX;
-                }
-                mTargetScrollX = scrollX;
-                scrollTo(scrollX, getScrollY());
-                hidePreview();
-                invalidate();
-                return true;
-            }
-        });
-        setWillNotDraw(false);
-        setHorizontalScrollBarEnabled(false);
-        setVerticalScrollBarEnabled(false);
         scrollTo(0, getScrollY());
     }
-    
+
     /**
      * A connection back to the service to communicate with the text field
      * @param listener
@@ -199,154 +160,100 @@ public class CandidateView extends View {
     public void setService(LatinIME listener) {
         mService = listener;
     }
-    
-    @Override
-    public int computeHorizontalScrollRange() {
-        return mTotalWidth;
-    }
 
-    /**
-     * If the canvas is null, then only touch calculations are performed to pick the target
-     * candidate.
-     */
-    @Override
-    protected void onDraw(Canvas canvas) {
-        if (canvas != null) {
-            super.onDraw(canvas);
-        }
-        mTotalWidth = 0;
-        if (mSuggestions == null) return;
-        
-        final int height = getHeight();
-        if (mBgPadding == null) {
-            mBgPadding = new Rect(0, 0, 0, 0);
-            if (getBackground() != null) {
-                getBackground().getPadding(mBgPadding);
-            }
-            mDivider.setBounds(0, 0, mDivider.getIntrinsicWidth(),
-                    mDivider.getIntrinsicHeight());
+    public void setSuggestions(SuggestedWords suggestions) {
+        if (suggestions == null)
+            return;
+        mSuggestions = suggestions;
+        if (mShowingAutoCorrectionInverted) {
+            mHandler.postUpdateSuggestions();
+        } else {
+            updateSuggestions();
         }
-        int x = 0;
-        final int count = Math.min(mSuggestions.size(), MAX_SUGGESTIONS);
-        final Rect bgPadding = mBgPadding;
-        final Paint paint = mPaint;
-        final int touchX = mTouchX;
-        final int scrollX = getScrollX();
-        final boolean scrolled = mScrolled;
-        final boolean typedWordValid = mTypedWordValid;
-        final int y = (int) (height + mPaint.getTextSize() - mDescent) / 2;
-
-        boolean existsAutoCompletion = false;
+    }
 
+    private void updateSuggestions() {
+        final SuggestedWords suggestions = mSuggestions;
+        clear();
+        final int count = suggestions.size();
+        final Object[] debugInfo = suggestions.mDebugInfo;
         for (int i = 0; i < count; i++) {
-            CharSequence suggestion = mSuggestions.get(i);
-            if (suggestion == null) continue;
-            paint.setColor(mColorNormal);
-            if (mHaveMinimalSuggestion 
-                    && ((i == 1 && !typedWordValid) || (i == 0 && typedWordValid))) {
-                paint.setTypeface(Typeface.DEFAULT_BOLD);
-                paint.setColor(mColorRecommended);
-                existsAutoCompletion = true;
-            } else if (i != 0 || (suggestion.length() == 1 && count > 1)) {
-                // HACK: even if i == 0, we use mColorOther when this suggestion's length is 1 and
-                // there are multiple suggestions, such as the default punctuation list.
-                paint.setColor(mColorOther);
-            }
-            final int wordWidth;
-            if (mWordWidth[i] != 0) {
-                wordWidth = mWordWidth[i];
-            } else {
-                float textWidth =  paint.measureText(suggestion, 0, suggestion.length());
-                wordWidth = Math.max(mMinTouchableWidth, (int) textWidth + X_GAP * 2);
-                mWordWidth[i] = wordWidth;
-            }
-
-            mWordX[i] = x;
-
-            if (touchX + scrollX >= x && touchX + scrollX < x + wordWidth && !scrolled &&
-                    touchX != OUT_OF_BOUNDS) {
-                if (canvas != null && !mShowingAddToDictionary) {
-                    canvas.translate(x, 0);
-                    mSelectionHighlight.setBounds(0, bgPadding.top, wordWidth, height);
-                    mSelectionHighlight.draw(canvas);
-                    canvas.translate(-x, 0);
-                    showPreview(i, null);
-                }
-                mSelectedString = suggestion;
-                mSelectedIndex = i;
-            }
-
-            if (canvas != null) {
-                canvas.drawText(suggestion, 0, suggestion.length(), x + wordWidth / 2, y, paint);
-                paint.setColor(mColorOther);
-                canvas.translate(x + wordWidth, 0);
-                // Draw a divider unless it's after the hint
-                if (!(mShowingAddToDictionary && i == 1)) {
-                    mDivider.draw(canvas);
+            CharSequence word = suggestions.getWord(i);
+            if (word == null) continue;
+            final int wordLength = word.length();
+
+            final View v = mWords.get(i);
+            final TextView tv = (TextView)v.findViewById(R.id.candidate_word);
+            final TextView dv = (TextView)v.findViewById(R.id.candidate_debug_info);
+            tv.setTextColor(mColorNormal);
+            if (suggestions.mHasMinimalSuggestion
+                    && ((i == 1 && !suggestions.mTypedWordValid) ||
+                            (i == 0 && suggestions.mTypedWordValid))) {
+                final CharacterStyle style;
+                if (mConfigCandidateHighlightFontColorEnabled) {
+                    style = BOLD_SPAN;
+                    tv.setTextColor(mColorRecommended);
+                } else {
+                    style = UNDERLINE_SPAN;
                 }
-                canvas.translate(-x - wordWidth, 0);
-            }
-            paint.setTypeface(Typeface.DEFAULT);
-            x += wordWidth;
-        }
-        mService.onAutoCompletionStateChanged(existsAutoCompletion);
-        mTotalWidth = x;
-        if (mTargetScrollX != scrollX) {
-            scrollToTarget();
-        }
-    }
-    
-    private void scrollToTarget() {
-        int scrollX = getScrollX();
-        if (mTargetScrollX > scrollX) {
-            scrollX += SCROLL_PIXELS;
-            if (scrollX >= mTargetScrollX) {
-                scrollX = mTargetScrollX;
-                scrollTo(scrollX, getScrollY());
-                requestLayout();
-            } else {
-                scrollTo(scrollX, getScrollY());
+                final Spannable spannedWord = new SpannableString(word);
+                spannedWord.setSpan(style, 0, wordLength, Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
+                word = spannedWord;
+            } else if (i != 0 || (wordLength == 1 && count > 1)) {
+                // HACK: even if i == 0, we use mColorOther when this
+                // suggestion's length is 1
+                // and there are multiple suggestions, such as the default
+                // punctuation list.
+                if (mConfigCandidateHighlightFontColorEnabled)
+                    tv.setTextColor(mColorOther);
             }
-        } else {
-            scrollX -= SCROLL_PIXELS;
-            if (scrollX <= mTargetScrollX) {
-                scrollX = mTargetScrollX;
-                scrollTo(scrollX, getScrollY());
-                requestLayout();
+            tv.setText(word);
+            tv.setClickable(true);
+            if (debugInfo != null && i < debugInfo.length && debugInfo[i] != null
+                    && !TextUtils.isEmpty(debugInfo[i].toString())) {
+                dv.setText(debugInfo[i].toString());
+                dv.setVisibility(VISIBLE);
             } else {
-                scrollTo(scrollX, getScrollY());
+                dv.setVisibility(GONE);
             }
+            addView(v);
         }
-        invalidate();
-    }
-    
-    public void setSuggestions(List<CharSequence> suggestions, boolean completions,
-            boolean typedWordValid, boolean haveMinimalSuggestion) {
-        clear();
-        if (suggestions != null) {
-            mSuggestions = new ArrayList<CharSequence>(suggestions);
-        }
-        mShowingCompletions = completions;
-        mTypedWordValid = typedWordValid;
+
         scrollTo(0, getScrollY());
-        mTargetScrollX = 0;
-        mHaveMinimalSuggestion = haveMinimalSuggestion;
-        // Compute the total width
-        onDraw(null);
-        invalidate();
         requestLayout();
     }
 
+    public void onAutoCorrectionInverted(CharSequence autoCorrectedWord) {
+        // Displaying auto corrected word as inverted is enabled only when highlighting candidate
+        // with color is disabled.
+        if (mConfigCandidateHighlightFontColorEnabled)
+            return;
+        final TextView tv = (TextView)mWords.get(1).findViewById(R.id.candidate_word);
+        final Spannable word = new SpannableString(autoCorrectedWord);
+        final int wordLength = word.length();
+        word.setSpan(mInvertedBackgroundColorSpan, 0, wordLength, Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
+        word.setSpan(mInvertedForegroundColorSpan, 0, wordLength, Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
+        tv.setText(word);
+        mShowingAutoCorrectionInverted = true;
+    }
+
+    public boolean isConfigCandidateHighlightFontColorEnabled() {
+        return mConfigCandidateHighlightFontColorEnabled;
+    }
+
     public boolean isShowingAddToDictionaryHint() {
         return mShowingAddToDictionary;
     }
 
     public void showAddToDictionaryHint(CharSequence word) {
-        ArrayList<CharSequence> suggestions = new ArrayList<CharSequence>();
-        suggestions.add(word);
-        suggestions.add(mAddToDictionaryHint);
-        setSuggestions(suggestions, false, false, false);
+        SuggestedWords.Builder builder = new SuggestedWords.Builder()
+                .addWord(word)
+                .addWord(getContext().getText(R.string.hint_add_to_dictionary));
+        setSuggestions(builder.build());
         mShowingAddToDictionary = true;
+        // Disable R.string.hint_add_to_dictionary button
+        TextView tv = (TextView)getChildAt(1).findViewById(R.id.candidate_word);
+        tv.setClickable(false);
     }
 
     public boolean dismissAddToDictionaryHint() {
@@ -355,192 +262,78 @@ public class CandidateView extends View {
         return true;
     }
 
-    public void scrollPrev() {
-        int i = 0;
-        final int count = Math.min(mSuggestions.size(), MAX_SUGGESTIONS);
-        int firstItem = 0; // Actually just before the first item, if at the boundary
-        while (i < count) {
-            if (mWordX[i] < getScrollX() 
-                    && mWordX[i] + mWordWidth[i] >= getScrollX() - 1) {
-                firstItem = i;
-                break;
-            }
-            i++;
-        }
-        int leftEdge = mWordX[firstItem] + mWordWidth[firstItem] - getWidth();
-        if (leftEdge < 0) leftEdge = 0;
-        updateScrollPosition(leftEdge);
-    }
-    
-    public void scrollNext() {
-        int i = 0;
-        int scrollX = getScrollX();
-        int targetX = scrollX;
-        final int count = Math.min(mSuggestions.size(), MAX_SUGGESTIONS);
-        int rightEdge = scrollX + getWidth();
-        while (i < count) {
-            if (mWordX[i] <= rightEdge &&
-                    mWordX[i] + mWordWidth[i] >= rightEdge) {
-                targetX = Math.min(mWordX[i], mTotalWidth - getWidth());
-                break;
-            }
-            i++;
-        }
-        updateScrollPosition(targetX);
+    public SuggestedWords getSuggestions() {
+        return mSuggestions;
     }
 
-    private void updateScrollPosition(int targetX) {
-        if (targetX != getScrollX()) {
-            // TODO: Animate
-            mTargetScrollX = targetX;
-            requestLayout();
-            invalidate();
-            mScrolled = true;
-        }
+    public void clear() {
+        mShowingAddToDictionary = false;
+        mShowingAutoCorrectionInverted = false;
+        removeAllViews();
     }
 
-    /* package */ List<CharSequence> getSuggestions() {
-        return mSuggestions;
+    private void hidePreview() {
+        mPreviewPopup.dismiss();
     }
 
-    public void clear() {
-        // Don't call mSuggestions.clear() because it's being used for logging
-        // in LatinIME.pickSuggestionManually().
-        mSuggestions = EMPTY_LIST;
-        mTouchX = OUT_OF_BOUNDS;
-        mSelectedString = null;
-        mSelectedIndex = -1;
-        mShowingAddToDictionary = false;
-        invalidate();
-        Arrays.fill(mWordWidth, 0);
-        Arrays.fill(mWordX, 0);
-        if (mPreviewPopup.isShowing()) {
-            mPreviewPopup.dismiss();
+    private void showPreview(int index, CharSequence word) {
+        if (TextUtils.isEmpty(word))
+            return;
+
+        final TextView previewText = mPreviewText;
+        previewText.setTextColor(mColorNormal);
+        previewText.setText(word);
+        previewText.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
+                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
+        View v = getChildAt(index);
+        final int[] offsetInWindow = new int[2];
+        v.getLocationInWindow(offsetInWindow);
+        final int posX = offsetInWindow[0];
+        final int posY = offsetInWindow[1] - previewText.getMeasuredHeight();
+        final PopupWindow previewPopup = mPreviewPopup;
+        if (previewPopup.isShowing()) {
+            previewPopup.update(posX, posY, previewPopup.getWidth(), previewPopup.getHeight());
+        } else {
+            previewPopup.showAtLocation(this, Gravity.NO_GRAVITY, posX, posY);
         }
+        previewText.setVisibility(VISIBLE);
+        mHandler.postHidePreview();
     }
-    
-    @Override
-    public boolean onTouchEvent(MotionEvent me) {
 
-        if (mGestureDetector.onTouchEvent(me)) {
-            return true;
+    private void addToDictionary(CharSequence word) {
+        if (mService.addWordToDictionary(word.toString())) {
+            showPreview(0, getContext().getString(R.string.added_word, word));
         }
+    }
 
-        int action = me.getAction();
-        int x = (int) me.getX();
-        int y = (int) me.getY();
-        mTouchX = x;
-
-        switch (action) {
-        case MotionEvent.ACTION_DOWN:
-            mScrolled = false;
-            invalidate();
-            break;
-        case MotionEvent.ACTION_MOVE:
-            if (y <= 0) {
-                // Fling up!?
-                if (mSelectedString != null) {
-                    // If there are completions from the application, we don't change the state to
-                    // STATE_PICKED_SUGGESTION
-                    if (!mShowingCompletions) {
-                        // This "acceptedSuggestion" will not be counted as a word because
-                        // it will be counted in pickSuggestion instead.
-                        TextEntryState.acceptedSuggestion(mSuggestions.get(0),
-                                mSelectedString);
-                    }
-                    mService.pickSuggestionManually(mSelectedIndex, mSelectedString);
-                    mSelectedString = null;
-                    mSelectedIndex = -1;
-                }
-            }
-            invalidate();
-            break;
-        case MotionEvent.ACTION_UP:
-            if (!mScrolled) {
-                if (mSelectedString != null) {
-                    if (mShowingAddToDictionary) {
-                        longPressFirstWord();
-                        clear();
-                    } else {
-                        if (!mShowingCompletions) {
-                            TextEntryState.acceptedSuggestion(mSuggestions.get(0),
-                                    mSelectedString);
-                        }
-                        mService.pickSuggestionManually(mSelectedIndex, mSelectedString);
-                    }
-                }
-            }
-            mSelectedString = null;
-            mSelectedIndex = -1;
-            removeHighlight();
-            hidePreview();
-            requestLayout();
-            break;
-        }
+    @Override
+    public boolean onLongClick(View view) {
+        int index = (Integer) view.getTag();
+        CharSequence word = mSuggestions.getWord(index);
+        if (word.length() < 2)
+            return false;
+        addToDictionary(word);
         return true;
     }
 
-    private void hidePreview() {
-        mCurrentWordIndex = OUT_OF_BOUNDS;
-        if (mPreviewPopup.isShowing()) {
-            mHandler.sendMessageDelayed(mHandler
-                    .obtainMessage(MSG_REMOVE_PREVIEW), 60);
-        }
-    }
-    
-    private void showPreview(int wordIndex, String altText) {
-        int oldWordIndex = mCurrentWordIndex;
-        mCurrentWordIndex = wordIndex;
-        // If index changed or changing text
-        if (oldWordIndex != mCurrentWordIndex || altText != null) {
-            if (wordIndex == OUT_OF_BOUNDS) {
-                hidePreview();
-            } else {
-                CharSequence word = altText != null? altText : mSuggestions.get(wordIndex);
-                mPreviewText.setText(word);
-                mPreviewText.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), 
-                        MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
-                int wordWidth = (int) (mPaint.measureText(word, 0, word.length()) + X_GAP * 2);
-                final int popupWidth = wordWidth
-                        + mPreviewText.getPaddingLeft() + mPreviewText.getPaddingRight();
-                final int popupHeight = mPreviewText.getMeasuredHeight();
-                //mPreviewText.setVisibility(INVISIBLE);
-                mPopupPreviewX = mWordX[wordIndex] - mPreviewText.getPaddingLeft() - getScrollX()
-                        + (mWordWidth[wordIndex] - wordWidth) / 2;
-                mPopupPreviewY = - popupHeight;
-                mHandler.removeMessages(MSG_REMOVE_PREVIEW);
-                int [] offsetInWindow = new int[2];
-                getLocationInWindow(offsetInWindow);
-                if (mPreviewPopup.isShowing()) {
-                    mPreviewPopup.update(mPopupPreviewX, mPopupPreviewY + offsetInWindow[1], 
-                            popupWidth, popupHeight);
-                } else {
-                    mPreviewPopup.setWidth(popupWidth);
-                    mPreviewPopup.setHeight(popupHeight);
-                    mPreviewPopup.showAtLocation(this, Gravity.NO_GRAVITY, mPopupPreviewX, 
-                            mPopupPreviewY + offsetInWindow[1]);
-                }
-                mPreviewText.setVisibility(VISIBLE);
+    @Override
+    public void onClick(View view) {
+        int index = (Integer) view.getTag();
+        CharSequence word = mSuggestions.getWord(index);
+        if (mShowingAddToDictionary && index == 0) {
+            addToDictionary(word);
+        } else {
+            if (!mSuggestions.mIsApplicationSpecifiedCompletions) {
+                TextEntryState.acceptedSuggestion(mSuggestions.getWord(0), word);
             }
-        }
-    }
-    
-    private void removeHighlight() {
-        mTouchX = OUT_OF_BOUNDS;
-        invalidate();
-    }
-    
-    private void longPressFirstWord() {
-        CharSequence word = mSuggestions.get(0);
-        if (word.length() < 2) return;
-        if (mService.addWordToDictionary(word.toString())) {
-            showPreview(0, getContext().getResources().getString(R.string.added_word, word));
+            mService.pickSuggestionManually(index, word);
         }
     }
     
     @Override
     public void onDetachedFromWindow() {
         super.onDetachedFromWindow();
+        mHandler.cancelAllMessages();
         hidePreview();
     }
 }