Merge "Move some inner static class to top class in new package"

1 files changed, 0 insertions, 1585 deletions

diff --git a/java/src/com/android/inputmethod/latin/BaseKeyboardView.java b/java/src/com/android/inputmethod/latin/BaseKeyboardView.java
deleted file mode 100644
index 3193cd46e..000000000
--- a/java/src/com/android/inputmethod/latin/BaseKeyboardView.java
+++ /dev/null
@@ -1,1585 +0,0 @@
-/*
- * 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 License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.inputmethod.latin;
-
-import com.android.inputmethod.latin.BaseKeyboard.Key;
-
-import android.content.Context;
-import android.content.pm.PackageManager;
-import android.content.res.Resources;
-import android.content.res.TypedArray;
-import android.graphics.Bitmap;
-import android.graphics.Canvas;
-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.Typeface;
-import android.graphics.drawable.Drawable;
-import android.os.Handler;
-import android.os.Message;
-import android.os.SystemClock;
-import android.util.AttributeSet;
-import android.util.Log;
-import android.util.TypedValue;
-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.WindowManager;
-import android.widget.PopupWindow;
-import android.widget.TextView;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.WeakHashMap;
-
-/**
- * A view that renders a virtual {@link LatinKeyboard}. It handles rendering of keys and
- * detecting key presses and touch movements.
- *
- * TODO: References to LatinKeyboard in this class should be replaced with ones to its base class.
- *
- * @attr ref R.styleable#BaseKeyboardView_keyBackground
- * @attr ref R.styleable#BaseKeyboardView_keyPreviewLayout
- * @attr ref R.styleable#BaseKeyboardView_keyPreviewOffset
- * @attr ref R.styleable#BaseKeyboardView_labelTextSize
- * @attr ref R.styleable#BaseKeyboardView_keyTextSize
- * @attr ref R.styleable#BaseKeyboardView_keyTextColor
- * @attr ref R.styleable#BaseKeyboardView_verticalCorrection
- * @attr ref R.styleable#BaseKeyboardView_popupLayout
- */
-public class BaseKeyboardView extends View implements PointerTracker.UIProxy {
-    private static final String TAG = "BaseKeyboardView";
-    private static final boolean DEBUG = false;
-    private static final boolean DEBUG_SHOW_ALIGN = false;
-    private static final boolean DEBUG_KEYBOARD_GRID = false;
-
-    public static final int COLOR_SCHEME_WHITE = 0;
-    public static final int COLOR_SCHEME_BLACK = 1;
-
-    public static final int NOT_A_TOUCH_COORDINATE = -1;
-
-    public interface OnKeyboardActionListener {
-
-        /**
-         * Called when the user presses a key. This is sent before the
-         * {@link #onKey} is called. For keys that repeat, this is only
-         * called once.
-         *
-         * @param primaryCode
-         *            the unicode of the key being pressed. If the touch is
-         *            not on a valid key, the value will be zero.
-         */
-        void onPress(int primaryCode);
-
-        /**
-         * Called when the user releases a key. This is sent after the
-         * {@link #onKey} is called. For keys that repeat, this is only
-         * called once.
-         *
-         * @param primaryCode
-         *            the code of the key that was released
-         */
-        void onRelease(int primaryCode);
-
-        /**
-         * Send a key press to the listener.
-         *
-         * @param primaryCode
-         *            this is the key that was pressed
-         * @param keyCodes
-         *            the codes for all the possible alternative keys with
-         *            the primary code being the first. If the primary key
-         *            code is a single character such as an alphabet or
-         *            number or symbol, the alternatives will include other
-         *            characters that may be on the same key or adjacent
-         *            keys. These codes are useful to correct for
-         *            accidental presses of a key adjacent to the intended
-         *            key.
-         * @param x
-         *            x-coordinate pixel of touched event. If onKey is not called by onTouchEvent,
-         *            the value should be NOT_A_TOUCH_COORDINATE.
-         * @param y
-         *            y-coordinate pixel of touched event. If onKey is not called by onTouchEvent,
-         *            the value should be NOT_A_TOUCH_COORDINATE.
-         */
-        void onKey(int primaryCode, int[] keyCodes, int x, int y);
-
-        /**
-         * Sends a sequence of characters to the listener.
-         *
-         * @param text
-         *            the sequence of characters to be displayed.
-         */
-        void onText(CharSequence text);
-
-        /**
-         * Called when user released a finger outside any key.
-         */
-        void onCancel();
-
-        /**
-         * Called when the user quickly moves the finger from right to
-         * left.
-         */
-        void swipeLeft();
-
-        /**
-         * Called when the user quickly moves the finger from left to
-         * right.
-         */
-        void swipeRight();
-
-        /**
-         * Called when the user quickly moves the finger from up to down.
-         */
-        void swipeDown();
-
-        /**
-         * Called when the user quickly moves the finger from down to up.
-         */
-        void swipeUp();
-    }
-
-    // Timing constants
-    private final int mKeyRepeatInterval;
-
-    // Miscellaneous constants
-    /* package */ static final int NOT_A_KEY = -1;
-    private static final int[] LONG_PRESSABLE_STATE_SET = { android.R.attr.state_long_pressable };
-    private static final int HINT_ICON_VERTICAL_ADJUSTMENT_PIXEL = -1;
-
-    // XML attribute
-    private int mKeyLetterSize;
-    private int mKeyTextColor;
-    private int mKeyTextColorDisabled;
-    private Typeface mKeyLetterStyle = Typeface.DEFAULT;
-    private int mLabelTextSize;
-    private int mColorScheme = COLOR_SCHEME_WHITE;
-    private int mShadowColor;
-    private float mShadowRadius;
-    private Drawable mKeyBackground;
-    private float mBackgroundDimAmount;
-    private float mKeyHysteresisDistance;
-    private float mVerticalCorrection;
-    private int mPreviewOffset;
-    private int mPreviewHeight;
-    private int mPopupLayout;
-
-    // Main keyboard
-    private BaseKeyboard mKeyboard;
-    private Key[] mKeys;
-
-    // Key preview popup
-    private boolean mInForeground;
-    private TextView mPreviewText;
-    private PopupWindow mPreviewPopup;
-    private int mPreviewTextSizeLarge;
-    private int[] mOffsetInWindow;
-    private int mOldPreviewKeyIndex = NOT_A_KEY;
-    private boolean mShowPreview = true;
-    private boolean mShowTouchPoints = true;
-    private int mPopupPreviewOffsetX;
-    private int mPopupPreviewOffsetY;
-    private int mWindowY;
-    private int mPopupPreviewDisplayedY;
-    private final int mDelayBeforePreview;
-    private final int mDelayAfterPreview;
-
-    // Popup mini keyboard
-    private PopupWindow mMiniKeyboardPopup;
-    private BaseKeyboardView mMiniKeyboard;
-    private View mMiniKeyboardParent;
-    private final WeakHashMap<Key, View> mMiniKeyboardCache = new WeakHashMap<Key, View>();
-    private int mMiniKeyboardOriginX;
-    private int mMiniKeyboardOriginY;
-    private long mMiniKeyboardPopupTime;
-    private int[] mWindowOffset;
-    private final float mMiniKeyboardSlideAllowance;
-    private int mMiniKeyboardTrackerId;
-
-    /** Listener for {@link OnKeyboardActionListener}. */
-    private OnKeyboardActionListener mKeyboardActionListener;
-
-    private final ArrayList<PointerTracker> mPointerTrackers = new ArrayList<PointerTracker>();
-
-    // TODO: Let the PointerTracker class manage this pointer queue
-    private final PointerQueue mPointerQueue = new PointerQueue();
-
-    private final boolean mHasDistinctMultitouch;
-    private int mOldPointerCount = 1;
-
-    protected KeyDetector mKeyDetector = new ProximityKeyDetector();
-
-    // Swipe gesture detector
-    private GestureDetector mGestureDetector;
-    private final SwipeTracker mSwipeTracker = new SwipeTracker();
-    private final int mSwipeThreshold;
-    private final boolean mDisambiguateSwipe;
-
-    // Drawing
-    /** Whether the keyboard bitmap needs to be redrawn before it's blitted. **/
-    private boolean mDrawPending;
-    /** The dirty region in the keyboard bitmap */
-    private final Rect mDirtyRect = new Rect();
-    /** The keyboard bitmap for faster updates */
-    private Bitmap mBuffer;
-    /** Notes if the keyboard just changed, so that we could possibly reallocate the mBuffer. */
-    private boolean mKeyboardChanged;
-    private Key mInvalidatedKey;
-    /** The canvas for the above mutable keyboard bitmap */
-    private Canvas mCanvas;
-    private final Paint mPaint;
-    private final Rect mPadding;
-    private final Rect mClipRegion = new Rect(0, 0, 0, 0);
-    // This map caches key label text height in pixel as value and key label text size as map key.
-    private final HashMap<Integer, Integer> mTextHeightCache = new HashMap<Integer, Integer>();
-    // Distance from horizontal center of the key, proportional to key label text height and width.
-    private final float KEY_LABEL_VERTICAL_ADJUSTMENT_FACTOR_CENTER = 0.55f;
-    private final float KEY_LABEL_VERTICAL_PADDING_FACTOR = 1.60f;
-    private final String KEY_LABEL_REFERENCE_CHAR = "H";
-    private final int KEY_LABEL_OPTION_ALIGN_LEFT = 1;
-    private final int KEY_LABEL_OPTION_ALIGN_RIGHT = 2;
-    private final int KEY_LABEL_OPTION_ALIGN_BOTTOM = 8;
-    private final int KEY_LABEL_OPTION_FONT_NORMAL = 16;
-    private final int mKeyLabelHorizontalPadding;
-
-    private final UIHandler mHandler = new UIHandler();
-
-    class UIHandler extends Handler {
-        private static final int MSG_POPUP_PREVIEW = 1;
-        private static final int MSG_DISMISS_PREVIEW = 2;
-        private static final int MSG_REPEAT_KEY = 3;
-        private static final int MSG_LONGPRESS_KEY = 4;
-        private static final int MSG_LONGPRESS_SHIFT_KEY = 5;
-
-        private boolean mInKeyRepeat;
-
-        @Override
-        public void handleMessage(Message msg) {
-            switch (msg.what) {
-                case MSG_POPUP_PREVIEW:
-                    showKey(msg.arg1, (PointerTracker)msg.obj);
-                    break;
-                case MSG_DISMISS_PREVIEW:
-                    mPreviewPopup.dismiss();
-                    break;
-                case MSG_REPEAT_KEY: {
-                    final PointerTracker tracker = (PointerTracker)msg.obj;
-                    tracker.repeatKey(msg.arg1);
-                    startKeyRepeatTimer(mKeyRepeatInterval, msg.arg1, tracker);
-                    break;
-                }
-                case MSG_LONGPRESS_KEY: {
-                    final PointerTracker tracker = (PointerTracker)msg.obj;
-                    openPopupIfRequired(msg.arg1, tracker);
-                    break;
-                }
-                case MSG_LONGPRESS_SHIFT_KEY: {
-                    final PointerTracker tracker = (PointerTracker)msg.obj;
-                    onLongPressShiftKey(tracker);
-                    break;
-                }
-            }
-        }
-
-        public void popupPreview(long delay, int keyIndex, PointerTracker tracker) {
-            removeMessages(MSG_POPUP_PREVIEW);
-            if (mPreviewPopup.isShowing() && mPreviewText.getVisibility() == VISIBLE) {
-                // Show right away, if it's already visible and finger is moving around
-                showKey(keyIndex, tracker);
-            } else {
-                sendMessageDelayed(obtainMessage(MSG_POPUP_PREVIEW, keyIndex, 0, tracker),
-                        delay);
-            }
-        }
-
-        public void cancelPopupPreview() {
-            removeMessages(MSG_POPUP_PREVIEW);
-        }
-
-        public void dismissPreview(long delay) {
-            if (mPreviewPopup.isShowing()) {
-                sendMessageDelayed(obtainMessage(MSG_DISMISS_PREVIEW), delay);
-            }
-        }
-
-        public void cancelDismissPreview() {
-            removeMessages(MSG_DISMISS_PREVIEW);
-        }
-
-        public void startKeyRepeatTimer(long delay, int keyIndex, PointerTracker tracker) {
-            mInKeyRepeat = true;
-            sendMessageDelayed(obtainMessage(MSG_REPEAT_KEY, keyIndex, 0, tracker), delay);
-        }
-
-        public void cancelKeyRepeatTimer() {
-            mInKeyRepeat = false;
-            removeMessages(MSG_REPEAT_KEY);
-        }
-
-        public boolean isInKeyRepeat() {
-            return mInKeyRepeat;
-        }
-
-        public void startLongPressTimer(long delay, int keyIndex, PointerTracker tracker) {
-            cancelLongPressTimers();
-            sendMessageDelayed(obtainMessage(MSG_LONGPRESS_KEY, keyIndex, 0, tracker), delay);
-        }
-
-        public void startLongPressShiftTimer(long delay, int keyIndex, PointerTracker tracker) {
-            cancelLongPressTimers();
-            sendMessageDelayed(
-                    obtainMessage(MSG_LONGPRESS_SHIFT_KEY, keyIndex, 0, tracker), delay);
-        }
-
-        public void cancelLongPressTimers() {
-            removeMessages(MSG_LONGPRESS_KEY);
-            removeMessages(MSG_LONGPRESS_SHIFT_KEY);
-        }
-
-        public void cancelKeyTimers() {
-            cancelKeyRepeatTimer();
-            cancelLongPressTimers();
-        }
-
-        public void cancelAllMessages() {
-            cancelKeyTimers();
-            cancelPopupPreview();
-            cancelDismissPreview();
-        }
-    };
-
-    static class PointerQueue {
-        private LinkedList<PointerTracker> mQueue = new LinkedList<PointerTracker>();
-
-        public void add(PointerTracker tracker) {
-            mQueue.add(tracker);
-        }
-
-        public int lastIndexOf(PointerTracker tracker) {
-            LinkedList<PointerTracker> queue = mQueue;
-            for (int index = queue.size() - 1; index >= 0; index--) {
-                PointerTracker t = queue.get(index);
-                if (t == tracker)
-                    return index;
-            }
-            return -1;
-        }
-
-        public void releaseAllPointersOlderThan(PointerTracker tracker, long eventTime) {
-            LinkedList<PointerTracker> queue = mQueue;
-            int oldestPos = 0;
-            for (PointerTracker t = queue.get(oldestPos); t != tracker; t = queue.get(oldestPos)) {
-                if (t.isModifier()) {
-                    oldestPos++;
-                } else {
-                    t.onUpEvent(t.getLastX(), t.getLastY(), eventTime);
-                    t.setAlreadyProcessed();
-                    queue.remove(oldestPos);
-                }
-            }
-        }
-
-        public void releaseAllPointersExcept(PointerTracker tracker, long eventTime) {
-            for (PointerTracker t : mQueue) {
-                if (t == tracker)
-                    continue;
-                t.onUpEvent(t.getLastX(), t.getLastY(), eventTime);
-                t.setAlreadyProcessed();
-            }
-            mQueue.clear();
-            if (tracker != null)
-                mQueue.add(tracker);
-        }
-
-        public void remove(PointerTracker tracker) {
-            mQueue.remove(tracker);
-        }
-    }
-
-    public BaseKeyboardView(Context context, AttributeSet attrs) {
-        this(context, attrs, R.attr.keyboardViewStyle);
-    }
-
-    public BaseKeyboardView(Context context, AttributeSet attrs, int defStyle) {
-        super(context, attrs, defStyle);
-
-        TypedArray a = context.obtainStyledAttributes(
-                attrs, R.styleable.BaseKeyboardView, defStyle, R.style.BaseKeyboardView);
-        LayoutInflater inflate =
-                (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
-        int previewLayout = 0;
-        int keyTextSize = 0;
-
-        int n = a.getIndexCount();
-
-        for (int i = 0; i < n; i++) {
-            int attr = a.getIndex(i);
-
-            switch (attr) {
-            case R.styleable.BaseKeyboardView_keyBackground:
-                mKeyBackground = a.getDrawable(attr);
-                break;
-            case R.styleable.BaseKeyboardView_keyHysteresisDistance:
-                mKeyHysteresisDistance = a.getDimensionPixelOffset(attr, 0);
-                break;
-            case R.styleable.BaseKeyboardView_verticalCorrection:
-                mVerticalCorrection = a.getDimensionPixelOffset(attr, 0);
-                break;
-            case R.styleable.BaseKeyboardView_keyPreviewLayout:
-                previewLayout = a.getResourceId(attr, 0);
-                break;
-            case R.styleable.BaseKeyboardView_keyPreviewOffset:
-                mPreviewOffset = a.getDimensionPixelOffset(attr, 0);
-                break;
-            case R.styleable.BaseKeyboardView_keyPreviewHeight:
-                mPreviewHeight = a.getDimensionPixelSize(attr, 80);
-                break;
-            case R.styleable.BaseKeyboardView_keyLetterSize:
-                mKeyLetterSize = a.getDimensionPixelSize(attr, 18);
-                break;
-            case R.styleable.BaseKeyboardView_keyTextColor:
-                mKeyTextColor = a.getColor(attr, 0xFF000000);
-                break;
-            case R.styleable.BaseKeyboardView_keyTextColorDisabled:
-                mKeyTextColorDisabled = a.getColor(attr, 0xFF000000);
-                break;
-            case R.styleable.BaseKeyboardView_labelTextSize:
-                mLabelTextSize = a.getDimensionPixelSize(attr, 14);
-                break;
-            case R.styleable.BaseKeyboardView_popupLayout:
-                mPopupLayout = a.getResourceId(attr, 0);
-                break;
-            case R.styleable.BaseKeyboardView_shadowColor:
-                mShadowColor = a.getColor(attr, 0);
-                break;
-            case R.styleable.BaseKeyboardView_shadowRadius:
-                mShadowRadius = a.getFloat(attr, 0f);
-                break;
-            // TODO: Use Theme (android.R.styleable.Theme_backgroundDimAmount)
-            case R.styleable.BaseKeyboardView_backgroundDimAmount:
-                mBackgroundDimAmount = a.getFloat(attr, 0.5f);
-                break;
-            case R.styleable.BaseKeyboardView_keyLetterStyle:
-                mKeyLetterStyle = Typeface.defaultFromStyle(a.getInt(attr, Typeface.NORMAL));
-                break;
-            case R.styleable.BaseKeyboardView_colorScheme:
-                mColorScheme = a.getInt(attr, COLOR_SCHEME_WHITE);
-                break;
-            }
-        }
-
-        final Resources res = getResources();
-
-        mPreviewPopup = new PopupWindow(context);
-        if (previewLayout != 0) {
-            mPreviewText = (TextView) inflate.inflate(previewLayout, null);
-            mPreviewTextSizeLarge = (int) res.getDimension(R.dimen.key_preview_text_size_large);
-            mPreviewPopup.setContentView(mPreviewText);
-            mPreviewPopup.setBackgroundDrawable(null);
-        } else {
-            mShowPreview = false;
-        }
-        mPreviewPopup.setTouchable(false);
-        mPreviewPopup.setAnimationStyle(R.style.KeyPreviewAnimation);
-        mDelayBeforePreview = res.getInteger(R.integer.config_delay_before_preview);
-        mDelayAfterPreview = res.getInteger(R.integer.config_delay_after_preview);
-        mKeyLabelHorizontalPadding = (int)res.getDimension(
-                R.dimen.key_label_horizontal_alignment_padding);
-
-        mMiniKeyboardParent = this;
-        mMiniKeyboardPopup = new PopupWindow(context);
-        mMiniKeyboardPopup.setBackgroundDrawable(null);
-        mMiniKeyboardPopup.setAnimationStyle(R.style.MiniKeyboardAnimation);
-
-        mPaint = new Paint();
-        mPaint.setAntiAlias(true);
-        mPaint.setTextSize(keyTextSize);
-        mPaint.setTextAlign(Align.CENTER);
-        mPaint.setAlpha(255);
-
-        mPadding = new Rect(0, 0, 0, 0);
-        mKeyBackground.getPadding(mPadding);
-
-        mSwipeThreshold = (int) (500 * res.getDisplayMetrics().density);
-        // TODO: Refer frameworks/base/core/res/res/values/config.xml
-        mDisambiguateSwipe = res.getBoolean(R.bool.config_swipeDisambiguation);
-        mMiniKeyboardSlideAllowance = res.getDimension(R.dimen.mini_keyboard_slide_allowance);
-
-        GestureDetector.SimpleOnGestureListener listener =
-                new GestureDetector.SimpleOnGestureListener() {
-            @Override
-            public boolean onFling(MotionEvent me1, MotionEvent me2, float velocityX,
-                    float velocityY) {
-                final float absX = Math.abs(velocityX);
-                final float absY = Math.abs(velocityY);
-                float deltaX = me2.getX() - me1.getX();
-                float deltaY = me2.getY() - me1.getY();
-                int travelX = getWidth() / 2; // Half the keyboard width
-                int travelY = getHeight() / 2; // Half the keyboard height
-                mSwipeTracker.computeCurrentVelocity(1000);
-                final float endingVelocityX = mSwipeTracker.getXVelocity();
-                final float endingVelocityY = mSwipeTracker.getYVelocity();
-                if (velocityX > mSwipeThreshold && absY < absX && deltaX > travelX) {
-                    if (mDisambiguateSwipe && endingVelocityX >= velocityX / 4) {
-                        swipeRight();
-                        return true;
-                    }
-                } else if (velocityX < -mSwipeThreshold && absY < absX && deltaX < -travelX) {
-                    if (mDisambiguateSwipe && endingVelocityX <= velocityX / 4) {
-                        swipeLeft();
-                        return true;
-                    }
-                } else if (velocityY < -mSwipeThreshold && absX < absY && deltaY < -travelY) {
-                    if (mDisambiguateSwipe && endingVelocityY <= velocityY / 4) {
-                        swipeUp();
-                        return true;
-                    }
-                } else if (velocityY > mSwipeThreshold && absX < absY / 2 && deltaY > travelY) {
-                    if (mDisambiguateSwipe && endingVelocityY >= velocityY / 4) {
-                        swipeDown();
-                        return true;
-                    }
-                }
-                return false;
-            }
-        };
-
-        final boolean ignoreMultitouch = true;
-        mGestureDetector = new GestureDetector(getContext(), listener, null, ignoreMultitouch);
-        mGestureDetector.setIsLongpressEnabled(false);
-
-        mHasDistinctMultitouch = context.getPackageManager()
-                .hasSystemFeature(PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT);
-        mKeyRepeatInterval = res.getInteger(R.integer.config_key_repeat_interval);
-    }
-
-    public void setOnKeyboardActionListener(OnKeyboardActionListener listener) {
-        mKeyboardActionListener = listener;
-        for (PointerTracker tracker : mPointerTrackers) {
-            tracker.setOnKeyboardActionListener(listener);
-        }
-    }
-
-    /**
-     * Returns the {@link OnKeyboardActionListener} object.
-     * @return the listener attached to this keyboard
-     */
-    protected OnKeyboardActionListener getOnKeyboardActionListener() {
-        return mKeyboardActionListener;
-    }
-
-    /**
-     * Attaches a keyboard to this view. The keyboard can be switched at any time and the
-     * view will re-layout itself to accommodate the keyboard.
-     * @see BaseKeyboard
-     * @see #getKeyboard()
-     * @param keyboard the keyboard to display in this view
-     */
-    protected void setKeyboard(BaseKeyboard keyboard) {
-        if (mKeyboard != null) {
-            dismissKeyPreview();
-        }
-        // Remove any pending messages, except dismissing preview
-        mHandler.cancelKeyTimers();
-        mHandler.cancelPopupPreview();
-        mKeyboard = keyboard;
-        LatinImeLogger.onSetKeyboard(keyboard);
-        mKeys = mKeyDetector.setKeyboard(keyboard, -getPaddingLeft(),
-                -getPaddingTop() + mVerticalCorrection);
-        for (PointerTracker tracker : mPointerTrackers) {
-            tracker.setKeyboard(keyboard, mKeys, mKeyHysteresisDistance);
-        }
-        requestLayout();
-        // Hint to reallocate the buffer if the size changed
-        mKeyboardChanged = true;
-        invalidateAllKeys();
-        computeProximityThreshold(keyboard, mKeys);
-        mMiniKeyboardCache.clear();
-    }
-
-    /**
-     * Returns the current keyboard being displayed by this view.
-     * @return the currently attached keyboard
-     * @see #setKeyboard(BaseKeyboard)
-     */
-    protected BaseKeyboard getKeyboard() {
-        return mKeyboard;
-    }
-
-    /**
-     * Return whether the device has distinct multi-touch panel.
-     * @return true if the device has distinct multi-touch panel.
-     */
-    public boolean hasDistinctMultitouch() {
-        return mHasDistinctMultitouch;
-    }
-
-    /**
-     * Enables or disables the key feedback popup. This is a popup that shows a magnified
-     * version of the depressed key. By default the preview is enabled.
-     * @param previewEnabled whether or not to enable the key feedback popup
-     * @see #isPreviewEnabled()
-     */
-    public void setPreviewEnabled(boolean previewEnabled) {
-        mShowPreview = previewEnabled;
-    }
-
-    /**
-     * Returns the enabled state of the key feedback popup.
-     * @return whether or not the key feedback popup is enabled
-     * @see #setPreviewEnabled(boolean)
-     */
-    public boolean isPreviewEnabled() {
-        return mShowPreview;
-    }
-
-    public int getColorScheme() {
-        return mColorScheme;
-    }
-
-    public void setPopupParent(View v) {
-        mMiniKeyboardParent = v;
-    }
-
-    public void setPopupOffset(int x, int y) {
-        mPopupPreviewOffsetX = x;
-        mPopupPreviewOffsetY = y;
-        mPreviewPopup.dismiss();
-    }
-
-    /**
-     * When enabled, calls to {@link OnKeyboardActionListener#onKey} 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();
-    }
-
-    protected CharSequence adjustCase(CharSequence label) {
-        if (mKeyboard.isShiftedOrShiftLocked() && label != null && label.length() < 3
-                && Character.isLowerCase(label.charAt(0))) {
-            label = label.toString().toUpperCase();
-        }
-        return label;
-    }
-
-    @Override
-    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
-        // Round up a little
-        if (mKeyboard == null) {
-            setMeasuredDimension(
-                    getPaddingLeft() + getPaddingRight(), getPaddingTop() + getPaddingBottom());
-        } else {
-            int width = mKeyboard.getMinWidth() + getPaddingLeft() + getPaddingRight();
-            if (MeasureSpec.getSize(widthMeasureSpec) < width + 10) {
-                width = MeasureSpec.getSize(widthMeasureSpec);
-            }
-            setMeasuredDimension(
-                    width, mKeyboard.getHeight() + getPaddingTop() + getPaddingBottom());
-        }
-    }
-
-    /**
-     * Compute the most common key width and use it as proximity key detection threshold.
-     * @param keyboard
-     * @param keys
-     */
-    private void computeProximityThreshold(BaseKeyboard keyboard, Key[] keys) {
-        if (keyboard == null || keys == null || keys.length == 0) return;
-        final HashMap<Integer, Integer> histogram = new HashMap<Integer, Integer>();
-        int maxCount = 0;
-        int mostCommonWidth = 0;
-        for (Key key : keys) {
-            final Integer width = key.width + key.gap;
-            Integer count = histogram.get(width);
-            if (count == null)
-                count = 0;
-            histogram.put(width, ++count);
-            if (count > maxCount) {
-                maxCount = count;
-                mostCommonWidth = width;
-            }
-        }
-        mKeyDetector.setProximityThreshold(mostCommonWidth);
-    }
-
-    @Override
-    public void onSizeChanged(int w, int h, int oldw, int oldh) {
-        super.onSizeChanged(w, h, oldw, oldh);
-        // Release the buffer, if any and it will be reallocated on the next draw
-        mBuffer = null;
-    }
-
-    @Override
-    public void onDraw(Canvas canvas) {
-        super.onDraw(canvas);
-        if (mDrawPending || mBuffer == null || mKeyboardChanged) {
-            onBufferDraw();
-        }
-        canvas.drawBitmap(mBuffer, 0, 0, null);
-    }
-
-    private void onBufferDraw() {
-        if (mBuffer == null || mKeyboardChanged) {
-            if (mBuffer == null || mKeyboardChanged &&
-                    (mBuffer.getWidth() != getWidth() || mBuffer.getHeight() != getHeight())) {
-                // Make sure our bitmap is at least 1x1
-                final int width = Math.max(1, getWidth());
-                final int height = Math.max(1, getHeight());
-                mBuffer = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
-                mCanvas = new Canvas(mBuffer);
-            }
-            invalidateAllKeys();
-            mKeyboardChanged = false;
-        }
-        final Canvas canvas = mCanvas;
-        canvas.clipRect(mDirtyRect, Op.REPLACE);
-
-        if (mKeyboard == null) return;
-
-        final Paint paint = mPaint;
-        final Drawable keyBackground = mKeyBackground;
-        final Rect clipRegion = mClipRegion;
-        final Rect padding = mPadding;
-        final int kbdPaddingLeft = getPaddingLeft();
-        final int kbdPaddingTop = getPaddingTop();
-        final Key[] keys = mKeys;
-        final Key invalidKey = mInvalidatedKey;
-        final boolean isManualTemporaryUpperCase = (mKeyboard instanceof LatinKeyboard
-                && ((LatinKeyboard)mKeyboard).isManualTemporaryUpperCase());
-
-        boolean drawSingleKey = false;
-        if (invalidKey != null && canvas.getClipBounds(clipRegion)) {
-            // TODO we should use Rect.inset and Rect.contains here.
-            // Is clipRegion completely contained within the invalidated key?
-            if (invalidKey.x + kbdPaddingLeft - 1 <= clipRegion.left &&
-                    invalidKey.y + kbdPaddingTop - 1 <= clipRegion.top &&
-                    invalidKey.x + invalidKey.width + kbdPaddingLeft + 1 >= clipRegion.right &&
-                    invalidKey.y + invalidKey.height + kbdPaddingTop + 1 >= clipRegion.bottom) {
-                drawSingleKey = true;
-            }
-        }
-        canvas.drawColor(0x00000000, PorterDuff.Mode.CLEAR);
-        final int keyCount = keys.length;
-        for (int i = 0; i < keyCount; i++) {
-            final Key key = keys[i];
-            if (drawSingleKey && invalidKey != key) {
-                continue;
-            }
-            int[] drawableState = key.getCurrentDrawableState();
-            keyBackground.setState(drawableState);
-
-            // Switch the character to uppercase if shift is pressed
-            String label = key.label == null? null : adjustCase(key.label).toString();
-
-            final Rect bounds = keyBackground.getBounds();
-            if (key.width != bounds.right || key.height != bounds.bottom) {
-                keyBackground.setBounds(0, 0, key.width, key.height);
-            }
-            canvas.translate(key.x + kbdPaddingLeft, key.y + kbdPaddingTop);
-            keyBackground.draw(canvas);
-
-            final int rowHeight = padding.top + key.height;
-            // Draw key label
-            if (label != null) {
-                // For characters, use large font. For labels like "Done", use small font.
-                final int labelSize = getLabelSizeAndSetPaint(label, key, paint);
-                final int labelCharHeight = getLabelCharHeight(labelSize, paint);
-
-                // Vertical label text alignment.
-                final float baseline;
-                if ((key.labelOption & KEY_LABEL_OPTION_ALIGN_BOTTOM) != 0) {
-                    baseline = key.height -
-                            + labelCharHeight * KEY_LABEL_VERTICAL_PADDING_FACTOR;
-                    if (DEBUG_SHOW_ALIGN)
-                        drawHorizontalLine(canvas, (int)baseline, key.width, 0xc0008000,
-                                new Paint());
-                } else { // Align center
-                    final float centerY = (key.height + padding.top - padding.bottom) / 2;
-                    baseline = centerY
-                            + labelCharHeight * KEY_LABEL_VERTICAL_ADJUSTMENT_FACTOR_CENTER;
-                }
-                // Horizontal label text alignment
-                final int positionX;
-                if ((key.labelOption & KEY_LABEL_OPTION_ALIGN_LEFT) != 0) {
-                    positionX = mKeyLabelHorizontalPadding + padding.left;
-                    paint.setTextAlign(Align.LEFT);
-                    if (DEBUG_SHOW_ALIGN)
-                        drawVerticalLine(canvas, positionX, rowHeight, 0xc0800080, new Paint());
-                } else if ((key.labelOption & KEY_LABEL_OPTION_ALIGN_RIGHT) != 0) {
-                    positionX = key.width - mKeyLabelHorizontalPadding - padding.right;
-                    paint.setTextAlign(Align.RIGHT);
-                    if (DEBUG_SHOW_ALIGN)
-                        drawVerticalLine(canvas, positionX, rowHeight, 0xc0808000, new Paint());
-                } else {
-                    positionX = (key.width + padding.left - padding.right) / 2;
-                    paint.setTextAlign(Align.CENTER);
-                    if (DEBUG_SHOW_ALIGN && label.length() > 1)
-                        drawVerticalLine(canvas, positionX, rowHeight, 0xc0008080, new Paint());
-                }
-                if (key.manualTemporaryUpperCaseHintIcon != null && isManualTemporaryUpperCase) {
-                    paint.setColor(mKeyTextColorDisabled);
-                } else {
-                    paint.setColor(mKeyTextColor);
-                }
-                // Set a drop shadow for the text
-                paint.setShadowLayer(mShadowRadius, 0, 0, mShadowColor);
-                canvas.drawText(label, positionX, baseline, paint);
-                // Turn off drop shadow
-                paint.setShadowLayer(0, 0, 0, 0);
-            }
-            // Draw key icon
-            if (key.label == null && key.icon != null) {
-                final int drawableWidth = key.icon.getIntrinsicWidth();
-                final int drawableHeight = key.icon.getIntrinsicHeight();
-                final int drawableX;
-                final int drawableY = (
-                        key.height + padding.top - padding.bottom - drawableHeight) / 2;
-                if ((key.labelOption & KEY_LABEL_OPTION_ALIGN_LEFT) != 0) {
-                    drawableX = padding.left + mKeyLabelHorizontalPadding;
-                    if (DEBUG_SHOW_ALIGN)
-                        drawVerticalLine(canvas, drawableX, rowHeight, 0xc0800080, new Paint());
-                } else if ((key.labelOption & KEY_LABEL_OPTION_ALIGN_RIGHT) != 0) {
-                    drawableX = key.width - padding.right - mKeyLabelHorizontalPadding
-                            - drawableWidth;
-                    if (DEBUG_SHOW_ALIGN)
-                        drawVerticalLine(canvas, drawableX + drawableWidth, rowHeight,
-                                0xc0808000, new Paint());
-                } else { // Align center
-                    drawableX = (key.width + padding.left - padding.right - drawableWidth) / 2;
-                    if (DEBUG_SHOW_ALIGN)
-                        drawVerticalLine(canvas, drawableX + drawableWidth / 2, rowHeight,
-                                0xc0008080, new Paint());
-                }
-                drawIcon(canvas, key.icon, drawableX, drawableY, drawableWidth, drawableHeight);
-                if (DEBUG_SHOW_ALIGN)
-                    drawRectangle(canvas, drawableX, drawableY, drawableWidth, drawableHeight,
-                            0x80c00000, new Paint());
-            }
-            if (key.hintIcon != null) {
-                final int drawableWidth = key.width;
-                final int drawableHeight = key.height;
-                final int drawableX = 0;
-                final int drawableY = HINT_ICON_VERTICAL_ADJUSTMENT_PIXEL;
-                Drawable icon = (isManualTemporaryUpperCase
-                        && key.manualTemporaryUpperCaseHintIcon != null)
-                        ? key.manualTemporaryUpperCaseHintIcon : key.hintIcon;
-                drawIcon(canvas, icon, drawableX, drawableY, drawableWidth, drawableHeight);
-                if (DEBUG_SHOW_ALIGN)
-                    drawRectangle(canvas, drawableX, drawableY, drawableWidth, drawableHeight,
-                            0x80c0c000, new Paint());
-            }
-            canvas.translate(-key.x - kbdPaddingLeft, -key.y - kbdPaddingTop);
-        }
-
-        if (DEBUG_KEYBOARD_GRID) {
-            Paint p = new Paint();
-            p.setStyle(Paint.Style.STROKE);
-            p.setStrokeWidth(1.0f);
-            p.setColor(0x800000c0);
-            int cw = (mKeyboard.getMinWidth() + mKeyboard.GRID_WIDTH - 1) / mKeyboard.GRID_WIDTH;
-            int ch = (mKeyboard.getHeight() + mKeyboard.GRID_HEIGHT - 1) / mKeyboard.GRID_HEIGHT;
-            for (int i = 0; i <= mKeyboard.GRID_WIDTH; i++)
-                canvas.drawLine(i * cw, 0, i * cw, ch * mKeyboard.GRID_HEIGHT, p);
-            for (int i = 0; i <= mKeyboard.GRID_HEIGHT; i++)
-                canvas.drawLine(0, i * ch, cw * mKeyboard.GRID_WIDTH, i * ch, p);
-        }
-
-        mInvalidatedKey = null;
-        // Overlay a dark rectangle to dim the keyboard
-        if (mMiniKeyboard != null) {
-            paint.setColor((int) (mBackgroundDimAmount * 0xFF) << 24);
-            canvas.drawRect(0, 0, getWidth(), getHeight(), paint);
-        }
-
-        if (DEBUG) {
-            if (mShowTouchPoints) {
-                for (PointerTracker tracker : mPointerTrackers) {
-                    int startX = tracker.getStartX();
-                    int startY = tracker.getStartY();
-                    int lastX = tracker.getLastX();
-                    int lastY = tracker.getLastY();
-                    paint.setAlpha(128);
-                    paint.setColor(0xFFFF0000);
-                    canvas.drawCircle(startX, startY, 3, paint);
-                    canvas.drawLine(startX, startY, lastX, lastY, paint);
-                    paint.setColor(0xFF0000FF);
-                    canvas.drawCircle(lastX, lastY, 3, paint);
-                    paint.setColor(0xFF00FF00);
-                    canvas.drawCircle((startX + lastX) / 2, (startY + lastY) / 2, 2, paint);
-                }
-            }
-        }
-
-        mDrawPending = false;
-        mDirtyRect.setEmpty();
-    }
-
-    private int getLabelSizeAndSetPaint(CharSequence label, Key key, Paint paint) {
-        // For characters, use large font. For labels like "Done", use small font.
-        final int labelSize;
-        final Typeface labelStyle;
-        if (label.length() > 1 && key.codes.length < 2) {
-            labelSize = mLabelTextSize;
-            if ((key.labelOption & KEY_LABEL_OPTION_FONT_NORMAL) != 0) {
-                labelStyle = Typeface.DEFAULT;
-            } else {
-                labelStyle = Typeface.DEFAULT_BOLD;
-            }
-        } else {
-            labelSize = mKeyLetterSize;
-            labelStyle = mKeyLetterStyle;
-        }
-        paint.setTextSize(labelSize);
-        paint.setTypeface(labelStyle);
-        return labelSize;
-    }
-
-    private int getLabelCharHeight(int labelSize, Paint paint) {
-        Integer labelHeightValue = mTextHeightCache.get(labelSize);
-        final int labelCharHeight;
-        if (labelHeightValue != null) {
-            labelCharHeight = labelHeightValue;
-        } else {
-            Rect textBounds = new Rect();
-            paint.getTextBounds(KEY_LABEL_REFERENCE_CHAR, 0, 1, textBounds);
-            labelCharHeight = textBounds.height();
-            mTextHeightCache.put(labelSize, labelCharHeight);
-        }
-        return labelCharHeight;
-    }
-
-    private static void drawIcon(Canvas canvas, Drawable icon, int x, int y, int width,
-            int height) {
-        canvas.translate(x, y);
-        icon.setBounds(0, 0, width, height);
-        icon.draw(canvas);
-        canvas.translate(-x, -y);
-    }
-
-    private static void drawHorizontalLine(Canvas canvas, int y, int w, int color, Paint paint) {
-        paint.setStyle(Paint.Style.STROKE);
-        paint.setStrokeWidth(1.0f);
-        paint.setColor(color);
-        canvas.drawLine(0, y, w, y, paint);
-    }
-
-    private static void drawVerticalLine(Canvas canvas, int x, int h, int color, Paint paint) {
-        paint.setStyle(Paint.Style.STROKE);
-        paint.setStrokeWidth(1.0f);
-        paint.setColor(color);
-        canvas.drawLine(x, 0, x, h, paint);
-    }
-
-    private static void drawRectangle(Canvas canvas, int x, int y, int w, int h, int color,
-            Paint paint) {
-        paint.setStyle(Paint.Style.STROKE);
-        paint.setStrokeWidth(1.0f);
-        paint.setColor(color);
-        canvas.translate(x, y);
-        canvas.drawRect(0, 0, w, h, paint);
-        canvas.translate(-x, -y);
-    }
-
-    public void setForeground(boolean foreground) {
-        mInForeground = foreground;
-    }
-
-    // TODO: clean up this method.
-    private void dismissKeyPreview() {
-        for (PointerTracker tracker : mPointerTrackers)
-            tracker.releaseKey();
-        showPreview(NOT_A_KEY, null);
-    }
-
-    public void showPreview(int keyIndex, PointerTracker tracker) {
-        int oldKeyIndex = mOldPreviewKeyIndex;
-        mOldPreviewKeyIndex = keyIndex;
-        // We should re-draw popup preview when 1) we need to hide the preview, 2) we will show
-        // the space key preview and 3) pointer moves off the space key to other letter key, we
-        // should hide the preview of the previous key.
-        final boolean hidePreviewOrShowSpaceKeyPreview = (tracker == null)
-                || (SubtypeSwitcher.USE_SPACEBAR_LANGUAGE_SWITCHER
-                        && SubtypeSwitcher.getInstance().needsToDisplayLanguage()
-                        && (tracker.isSpaceKey(keyIndex) || tracker.isSpaceKey(oldKeyIndex)));
-        // If key changed and preview is on or the key is space (language switch is enabled)
-        if (oldKeyIndex != keyIndex && (mShowPreview || (hidePreviewOrShowSpaceKeyPreview))) {
-            if (keyIndex == NOT_A_KEY) {
-                mHandler.cancelPopupPreview();
-                mHandler.dismissPreview(mDelayAfterPreview);
-            } else if (tracker != null) {
-                mHandler.popupPreview(mDelayBeforePreview, keyIndex, tracker);
-            }
-        }
-    }
-
-    // TODO Must fix popup preview on xlarge layout
-    private void showKey(final int keyIndex, PointerTracker tracker) {
-        Key key = tracker.getKey(keyIndex);
-        // If keyIndex is invalid or IME is already closed, we must not show key preview.
-        // Trying to show preview PopupWindow while root window is closed causes
-        // WindowManager.BadTokenException.
-        if (key == null || !mInForeground)
-            return;
-        // What we show as preview should match what we show on key top in onBufferDraw(). 
-        if (key.label != null) {
-            // TODO Should take care of temporaryShiftLabel here.
-            mPreviewText.setCompoundDrawables(null, null, null, null);
-            mPreviewText.setText(adjustCase(tracker.getPreviewText(key)));
-            if (key.label.length() > 1 && key.codes.length < 2) {
-                mPreviewText.setTextSize(TypedValue.COMPLEX_UNIT_PX, mKeyLetterSize);
-                mPreviewText.setTypeface(Typeface.DEFAULT_BOLD);
-            } else {
-                mPreviewText.setTextSize(TypedValue.COMPLEX_UNIT_PX, mPreviewTextSizeLarge);
-                mPreviewText.setTypeface(mKeyLetterStyle);
-            }
-        } else {
-            mPreviewText.setCompoundDrawables(null, null, null,
-                    key.iconPreview != null ? key.iconPreview : key.icon);
-            mPreviewText.setText(null);
-        }
-        mPreviewText.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
-                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
-        int popupWidth = Math.max(mPreviewText.getMeasuredWidth(), key.width
-                + mPreviewText.getPaddingLeft() + mPreviewText.getPaddingRight());
-        final int popupHeight = mPreviewHeight;
-        LayoutParams lp = mPreviewText.getLayoutParams();
-        if (lp != null) {
-            lp.width = popupWidth;
-            lp.height = popupHeight;
-        }
-
-        int popupPreviewX = key.x - (popupWidth - key.width) / 2;
-        int popupPreviewY = key.y - popupHeight + mPreviewOffset;
-
-        mHandler.cancelDismissPreview();
-        if (mOffsetInWindow == null) {
-            mOffsetInWindow = new int[2];
-            getLocationInWindow(mOffsetInWindow);
-            mOffsetInWindow[0] += mPopupPreviewOffsetX; // Offset may be zero
-            mOffsetInWindow[1] += mPopupPreviewOffsetY; // Offset may be zero
-            int[] windowLocation = new int[2];
-            getLocationOnScreen(windowLocation);
-            mWindowY = windowLocation[1];
-        }
-        // Set the preview background state
-        mPreviewText.getBackground().setState(
-                key.popupResId != 0 ? LONG_PRESSABLE_STATE_SET : EMPTY_STATE_SET);
-        popupPreviewX += mOffsetInWindow[0];
-        popupPreviewY += mOffsetInWindow[1];
-
-        // If the popup cannot be shown above the key, put it on the side
-        if (popupPreviewY + mWindowY < 0) {
-            // If the key you're pressing is on the left side of the keyboard, show the popup on
-            // the right, offset by enough to see at least one key to the left/right.
-            if (key.x + key.width <= getWidth() / 2) {
-                popupPreviewX += (int) (key.width * 2.5);
-            } else {
-                popupPreviewX -= (int) (key.width * 2.5);
-            }
-            popupPreviewY += popupHeight;
-        }
-
-        try {
-            if (mPreviewPopup.isShowing()) {
-                mPreviewPopup.update(popupPreviewX, popupPreviewY, popupWidth, popupHeight);
-            } else {
-                mPreviewPopup.setWidth(popupWidth);
-                mPreviewPopup.setHeight(popupHeight);
-                mPreviewPopup.showAtLocation(mMiniKeyboardParent, Gravity.NO_GRAVITY,
-                        popupPreviewX, popupPreviewY);
-            }
-        } catch (WindowManager.BadTokenException e) {
-            // Swallow the exception which will be happened when IME is already closed.
-            Log.w(TAG, "LatinIME is already closed when tried showing key preview.");
-        }
-        // Record popup preview position to display mini-keyboard later at the same positon
-        mPopupPreviewDisplayedY = popupPreviewY;
-        mPreviewText.setVisibility(VISIBLE);
-    }
-
-    /**
-     * Requests a redraw of the entire keyboard. Calling {@link #invalidate} is not sufficient
-     * because the keyboard renders the keys to an off-screen buffer and an invalidate() only
-     * draws the cached buffer.
-     * @see #invalidateKey(Key)
-     */
-    public void invalidateAllKeys() {
-        mDirtyRect.union(0, 0, getWidth(), getHeight());
-        mDrawPending = true;
-        invalidate();
-    }
-
-    /**
-     * Invalidates a key so that it will be redrawn on the next repaint. Use this method if only
-     * one key is changing it's content. Any changes that affect the position or size of the key
-     * may not be honored.
-     * @param key key in the attached {@link BaseKeyboard}.
-     * @see #invalidateAllKeys
-     */
-    public void invalidateKey(Key key) {
-        if (key == null)
-            return;
-        mInvalidatedKey = key;
-        // TODO we should clean up this and record key's region to use in onBufferDraw.
-        mDirtyRect.union(key.x + getPaddingLeft(), key.y + getPaddingTop(),
-                key.x + key.width + getPaddingLeft(), key.y + key.height + getPaddingTop());
-        onBufferDraw();
-        invalidate(key.x + getPaddingLeft(), key.y + getPaddingTop(),
-                key.x + key.width + getPaddingLeft(), key.y + key.height + getPaddingTop());
-    }
-
-    private boolean openPopupIfRequired(int keyIndex, PointerTracker tracker) {
-        // Check if we have a popup layout specified first.
-        if (mPopupLayout == 0) {
-            return false;
-        }
-
-        Key popupKey = tracker.getKey(keyIndex);
-        if (popupKey == null)
-            return false;
-        boolean result = onLongPress(popupKey);
-        if (result) {
-            dismissKeyPreview();
-            mMiniKeyboardTrackerId = tracker.mPointerId;
-            // Mark this tracker "already processed" and remove it from the pointer queue
-            tracker.setAlreadyProcessed();
-            mPointerQueue.remove(tracker);
-        }
-        return result;
-    }
-
-    private void onLongPressShiftKey(PointerTracker tracker) {
-        tracker.setAlreadyProcessed();
-        mPointerQueue.remove(tracker);
-        mKeyboardActionListener.onKey(LatinKeyboardView.KEYCODE_CAPSLOCK, null, 0, 0);
-    }
-
-    private View inflateMiniKeyboardContainer(Key popupKey) {
-        int popupKeyboardId = popupKey.popupResId;
-        LayoutInflater inflater = (LayoutInflater)getContext().getSystemService(
-                Context.LAYOUT_INFLATER_SERVICE);
-        View container = inflater.inflate(mPopupLayout, null);
-        if (container == null)
-            throw new NullPointerException();
-
-        BaseKeyboardView miniKeyboard =
-                (BaseKeyboardView)container.findViewById(R.id.BaseKeyboardView);
-        miniKeyboard.setOnKeyboardActionListener(new OnKeyboardActionListener() {
-            public void onKey(int primaryCode, int[] keyCodes, int x, int y) {
-                mKeyboardActionListener.onKey(primaryCode, keyCodes, x, y);
-                dismissPopupKeyboard();
-            }
-
-            public void onText(CharSequence text) {
-                mKeyboardActionListener.onText(text);
-                dismissPopupKeyboard();
-            }
-
-            public void onCancel() {
-                dismissPopupKeyboard();
-            }
-
-            public void swipeLeft() {
-            }
-            public void swipeRight() {
-            }
-            public void swipeUp() {
-            }
-            public void swipeDown() {
-            }
-            public void onPress(int primaryCode) {
-                mKeyboardActionListener.onPress(primaryCode);
-            }
-            public void onRelease(int primaryCode) {
-                mKeyboardActionListener.onRelease(primaryCode);
-            }
-        });
-        // Override default ProximityKeyDetector.
-        miniKeyboard.mKeyDetector = new MiniKeyboardKeyDetector(mMiniKeyboardSlideAllowance);
-        // Remove gesture detector on mini-keyboard
-        miniKeyboard.mGestureDetector = null;
-
-        BaseKeyboard keyboard;
-        if (popupKey.popupCharacters != null) {
-            keyboard = new BaseKeyboard(getContext(), popupKeyboardId, popupKey.popupCharacters,
-                    -1, getPaddingLeft() + getPaddingRight());
-        } else {
-            keyboard = new BaseKeyboard(getContext(), popupKeyboardId);
-        }
-        miniKeyboard.setKeyboard(keyboard);
-        miniKeyboard.setPopupParent(this);
-
-        container.measure(MeasureSpec.makeMeasureSpec(getWidth(), MeasureSpec.AT_MOST),
-                MeasureSpec.makeMeasureSpec(getHeight(), MeasureSpec.AT_MOST));
-
-        return container;
-    }
-
-    private static boolean isOneRowKeys(List<Key> keys) {
-        if (keys.size() == 0) return false;
-        final int edgeFlags = keys.get(0).edgeFlags;
-        // HACK: The first key of mini keyboard which was inflated from xml and has multiple rows,
-        // does not have both top and bottom edge flags on at the same time.  On the other hand,
-        // the first key of mini keyboard that was created with popupCharacters must have both top
-        // and bottom edge flags on.
-        // When you want to use one row mini-keyboard from xml file, make sure that the row has
-        // both top and bottom edge flags set.
-        return (edgeFlags & BaseKeyboard.EDGE_TOP) != 0
-                && (edgeFlags & BaseKeyboard.EDGE_BOTTOM) != 0;
-    }
-
-    /**
-     * Called when a key is long pressed. By default this will open any popup keyboard associated
-     * with this key through the attributes popupLayout and popupCharacters.
-     * @param popupKey the key that was long pressed
-     * @return true if the long press is handled, false otherwise. Subclasses should call the
-     * method on the base class if the subclass doesn't wish to handle the call.
-     */
-    protected boolean onLongPress(Key popupKey) {
-        // TODO if popupKey.popupCharacters has only one letter, send it as key without opening
-        // mini keyboard.
-
-        if (popupKey.popupResId == 0)
-            return false;
-
-        View container = mMiniKeyboardCache.get(popupKey);
-        if (container == null) {
-            container = inflateMiniKeyboardContainer(popupKey);
-            mMiniKeyboardCache.put(popupKey, container);
-        }
-        mMiniKeyboard = (BaseKeyboardView)container.findViewById(R.id.BaseKeyboardView);
-        if (mWindowOffset == null) {
-            mWindowOffset = new int[2];
-            getLocationInWindow(mWindowOffset);
-        }
-
-        // Get width of a key in the mini popup keyboard = "miniKeyWidth".
-        // On the other hand, "popupKey.width" is width of the pressed key on the main keyboard.
-        // We adjust the position of mini popup keyboard with the edge key in it:
-        //  a) When we have the leftmost key in popup keyboard directly above the pressed key
-        //     Right edges of both keys should be aligned for consistent default selection
-        //  b) When we have the rightmost key in popup keyboard directly above the pressed key
-        //     Left edges of both keys should be aligned for consistent default selection
-        final List<Key> miniKeys = mMiniKeyboard.getKeyboard().getKeys();
-        final int miniKeyWidth = miniKeys.size() > 0 ? miniKeys.get(0).width : 0;
-
-        // HACK: Have the leftmost number in the popup characters right above the key
-        boolean isNumberAtLeftmost =
-                hasMultiplePopupChars(popupKey) && isNumberAtLeftmostPopupChar(popupKey);
-        int popupX = popupKey.x + mWindowOffset[0];
-        popupX += getPaddingLeft();
-        if (isNumberAtLeftmost) {
-            popupX += popupKey.width - miniKeyWidth;  // adjustment for a) described above
-            popupX -= container.getPaddingLeft();
-        } else {
-            popupX += miniKeyWidth;  // adjustment for b) described above
-            popupX -= container.getMeasuredWidth();
-            popupX += container.getPaddingRight();
-        }
-        int popupY = popupKey.y + mWindowOffset[1];
-        popupY += getPaddingTop();
-        popupY -= container.getMeasuredHeight();
-        popupY += container.getPaddingBottom();
-        final int x = popupX;
-        final int y = mShowPreview && isOneRowKeys(miniKeys) ? mPopupPreviewDisplayedY : popupY;
-
-        int adjustedX = x;
-        if (x < 0) {
-            adjustedX = 0;
-        } else if (x > (getMeasuredWidth() - container.getMeasuredWidth())) {
-            adjustedX = getMeasuredWidth() - container.getMeasuredWidth();
-        }
-        mMiniKeyboardOriginX = adjustedX + container.getPaddingLeft() - mWindowOffset[0];
-        mMiniKeyboardOriginY = y + container.getPaddingTop() - mWindowOffset[1];
-        mMiniKeyboard.setPopupOffset(adjustedX, y);
-        // TODO: change the below line to use getLatinKeyboard() instead of getKeyboard()
-        BaseKeyboard baseMiniKeyboard = mMiniKeyboard.getKeyboard();
-        if (baseMiniKeyboard != null && baseMiniKeyboard.setShifted(mKeyboard == null
-                ? false : mKeyboard.isShiftedOrShiftLocked())) {
-            mMiniKeyboard.invalidateAllKeys();
-        }
-        // Mini keyboard needs no pop-up key preview displayed.
-        mMiniKeyboard.setPreviewEnabled(false);
-        mMiniKeyboardPopup.setContentView(container);
-        mMiniKeyboardPopup.setWidth(container.getMeasuredWidth());
-        mMiniKeyboardPopup.setHeight(container.getMeasuredHeight());
-        mMiniKeyboardPopup.showAtLocation(this, Gravity.NO_GRAVITY, x, y);
-
-        // Inject down event on the key to mini keyboard.
-        long eventTime = SystemClock.uptimeMillis();
-        mMiniKeyboardPopupTime = eventTime;
-        MotionEvent downEvent = generateMiniKeyboardMotionEvent(MotionEvent.ACTION_DOWN, popupKey.x
-                + popupKey.width / 2, popupKey.y + popupKey.height / 2, eventTime);
-        mMiniKeyboard.onTouchEvent(downEvent);
-        downEvent.recycle();
-
-        invalidateAllKeys();
-        return true;
-    }
-
-    private static boolean hasMultiplePopupChars(Key key) {
-        if (key.popupCharacters != null && key.popupCharacters.length() > 1) {
-            return true;
-        }
-        return false;
-    }
-
-    private static boolean isNumberAtLeftmostPopupChar(Key key) {
-        if (key.popupCharacters != null && key.popupCharacters.length() > 0
-                && isAsciiDigit(key.popupCharacters.charAt(0))) {
-            return true;
-        }
-        return false;
-    }
-
-    private static boolean isAsciiDigit(char c) {
-        return (c < 0x80) && Character.isDigit(c);
-    }
-
-    private MotionEvent generateMiniKeyboardMotionEvent(int action, int x, int y, long eventTime) {
-        return MotionEvent.obtain(mMiniKeyboardPopupTime, eventTime, action,
-                    x - mMiniKeyboardOriginX, y - mMiniKeyboardOriginY, 0);
-    }
-
-    private PointerTracker getPointerTracker(final int id) {
-        final ArrayList<PointerTracker> pointers = mPointerTrackers;
-        final Key[] keys = mKeys;
-        final OnKeyboardActionListener listener = mKeyboardActionListener;
-
-        // Create pointer trackers until we can get 'id+1'-th tracker, if needed.
-        for (int i = pointers.size(); i <= id; i++) {
-            final PointerTracker tracker =
-                new PointerTracker(i, mHandler, mKeyDetector, this, getResources());
-            if (keys != null)
-                tracker.setKeyboard(mKeyboard, keys, mKeyHysteresisDistance);
-            if (listener != null)
-                tracker.setOnKeyboardActionListener(listener);
-            pointers.add(tracker);
-        }
-
-        return pointers.get(id);
-    }
-
-    @Override
-    public boolean onTouchEvent(MotionEvent me) {
-        final int pointerCount = me.getPointerCount();
-        final int action = me.getActionMasked();
-
-        // TODO: cleanup this code into a multi-touch to single-touch event converter class?
-        // If the device does not have distinct multi-touch support panel, ignore all multi-touch
-        // events except a transition from/to single-touch.
-        if (!mHasDistinctMultitouch && pointerCount > 1 && mOldPointerCount > 1) {
-            return true;
-        }
-
-        // Track the last few movements to look for spurious swipes.
-        mSwipeTracker.addMovement(me);
-
-        // Gesture detector must be enabled only when mini-keyboard is not on the screen.
-        if (mMiniKeyboard == null
-                && mGestureDetector != null && mGestureDetector.onTouchEvent(me)) {
-            dismissKeyPreview();
-            mHandler.cancelKeyTimers();
-            return true;
-        }
-
-        final long eventTime = me.getEventTime();
-        final int index = me.getActionIndex();
-        final int id = me.getPointerId(index);
-        final int x = (int)me.getX(index);
-        final int y = (int)me.getY(index);
-
-        // Needs to be called after the gesture detector gets a turn, as it may have
-        // displayed the mini keyboard
-        if (mMiniKeyboard != null) {
-            final int miniKeyboardPointerIndex = me.findPointerIndex(mMiniKeyboardTrackerId);
-            if (miniKeyboardPointerIndex >= 0 && miniKeyboardPointerIndex < pointerCount) {
-                final int miniKeyboardX = (int)me.getX(miniKeyboardPointerIndex);
-                final int miniKeyboardY = (int)me.getY(miniKeyboardPointerIndex);
-                MotionEvent translated = generateMiniKeyboardMotionEvent(action,
-                        miniKeyboardX, miniKeyboardY, eventTime);
-                mMiniKeyboard.onTouchEvent(translated);
-                translated.recycle();
-            }
-            return true;
-        }
-
-        if (mHandler.isInKeyRepeat()) {
-            // It will keep being in the key repeating mode while the key is being pressed.
-            if (action == MotionEvent.ACTION_MOVE) {
-                return true;
-            }
-            final PointerTracker tracker = getPointerTracker(id);
-            // Key repeating timer will be canceled if 2 or more keys are in action, and current
-            // event (UP or DOWN) is non-modifier key.
-            if (pointerCount > 1 && !tracker.isModifier()) {
-                mHandler.cancelKeyRepeatTimer();
-            }
-            // Up event will pass through.
-        }
-
-        // TODO: cleanup this code into a multi-touch to single-touch event converter class?
-        // Translate mutli-touch event to single-touch events on the device that has no distinct
-        // multi-touch panel.
-        if (!mHasDistinctMultitouch) {
-            // Use only main (id=0) pointer tracker.
-            PointerTracker tracker = getPointerTracker(0);
-            int oldPointerCount = mOldPointerCount;
-            if (pointerCount == 1 && oldPointerCount == 2) {
-                // Multi-touch to single touch transition.
-                // Send a down event for the latest pointer.
-                tracker.onDownEvent(x, y, eventTime);
-            } else if (pointerCount == 2 && oldPointerCount == 1) {
-                // Single-touch to multi-touch transition.
-                // Send an up event for the last pointer.
-                tracker.onUpEvent(tracker.getLastX(), tracker.getLastY(), eventTime);
-            } else if (pointerCount == 1 && oldPointerCount == 1) {
-                tracker.onTouchEvent(action, x, y, eventTime);
-            } else {
-                Log.w(TAG, "Unknown touch panel behavior: pointer count is " + pointerCount
-                        + " (old " + oldPointerCount + ")");
-            }
-            mOldPointerCount = pointerCount;
-            return true;
-        }
-
-        if (action == MotionEvent.ACTION_MOVE) {
-            for (int i = 0; i < pointerCount; i++) {
-                PointerTracker tracker = getPointerTracker(me.getPointerId(i));
-                tracker.onMoveEvent((int)me.getX(i), (int)me.getY(i), eventTime);
-            }
-        } else {
-            PointerTracker tracker = getPointerTracker(id);
-            switch (action) {
-            case MotionEvent.ACTION_DOWN:
-            case MotionEvent.ACTION_POINTER_DOWN:
-                onDownEvent(tracker, x, y, eventTime);
-                break;
-            case MotionEvent.ACTION_UP:
-            case MotionEvent.ACTION_POINTER_UP:
-                onUpEvent(tracker, x, y, eventTime);
-                break;
-            case MotionEvent.ACTION_CANCEL:
-                onCancelEvent(tracker, x, y, eventTime);
-                break;
-            }
-        }
-
-        return true;
-    }
-
-    private void onDownEvent(PointerTracker tracker, int x, int y, long eventTime) {
-        if (tracker.isOnModifierKey(x, y)) {
-            // Before processing a down event of modifier key, all pointers already being tracked
-            // should be released.
-            mPointerQueue.releaseAllPointersExcept(null, eventTime);
-        }
-        tracker.onDownEvent(x, y, eventTime);
-        mPointerQueue.add(tracker);
-    }
-
-    private void onUpEvent(PointerTracker tracker, int x, int y, long eventTime) {
-        if (tracker.isModifier()) {
-            // Before processing an up event of modifier key, all pointers already being tracked
-            // should be released.
-            mPointerQueue.releaseAllPointersExcept(tracker, eventTime);
-        } else {
-            int index = mPointerQueue.lastIndexOf(tracker);
-            if (index >= 0) {
-                mPointerQueue.releaseAllPointersOlderThan(tracker, eventTime);
-            } else {
-                Log.w(TAG, "onUpEvent: corresponding down event not found for pointer "
-                        + tracker.mPointerId);
-            }
-        }
-        tracker.onUpEvent(x, y, eventTime);
-        mPointerQueue.remove(tracker);
-    }
-
-    private void onCancelEvent(PointerTracker tracker, int x, int y, long eventTime) {
-        tracker.onCancelEvent(x, y, eventTime);
-        mPointerQueue.remove(tracker);
-    }
-
-    protected void swipeRight() {
-        mKeyboardActionListener.swipeRight();
-    }
-
-    protected void swipeLeft() {
-        mKeyboardActionListener.swipeLeft();
-    }
-
-    protected void swipeUp() {
-        mKeyboardActionListener.swipeUp();
-    }
-
-    protected void swipeDown() {
-        mKeyboardActionListener.swipeDown();
-    }
-
-    public void closing() {
-        mPreviewPopup.dismiss();
-        mHandler.cancelAllMessages();
-
-        dismissPopupKeyboard();
-        mBuffer = null;
-        mCanvas = null;
-        mMiniKeyboardCache.clear();
-    }
-
-    @Override
-    public void onDetachedFromWindow() {
-        super.onDetachedFromWindow();
-        closing();
-    }
-
-    private void dismissPopupKeyboard() {
-        if (mMiniKeyboardPopup.isShowing()) {
-            mMiniKeyboardPopup.dismiss();
-            mMiniKeyboard = null;
-            mMiniKeyboardOriginX = 0;
-            mMiniKeyboardOriginY = 0;
-            invalidateAllKeys();
-        }
-    }
-
-    public boolean handleBack() {
-        if (mMiniKeyboardPopup.isShowing()) {
-            dismissPopupKeyboard();
-            return true;
-        }
-        return false;
-    }
-}