1051 lines
44 KiB
Java
1051 lines
44 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.keyboard;
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import android.animation.AnimatorInflater;
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import android.animation.ObjectAnimator;
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import android.content.Context;
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import android.content.pm.PackageManager;
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import android.content.res.Resources;
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import android.content.res.TypedArray;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.Paint.Align;
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import android.graphics.Typeface;
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import android.graphics.drawable.Drawable;
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import android.os.Message;
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import android.text.TextUtils;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.LayoutInflater;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.ViewConfiguration;
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import android.view.ViewGroup;
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import android.view.inputmethod.InputMethodSubtype;
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import android.widget.PopupWindow;
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import com.android.inputmethod.accessibility.AccessibilityUtils;
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import com.android.inputmethod.accessibility.AccessibleKeyboardViewProxy;
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import com.android.inputmethod.keyboard.PointerTracker.DrawingProxy;
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import com.android.inputmethod.keyboard.PointerTracker.TimerProxy;
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import com.android.inputmethod.keyboard.internal.KeyDrawParams;
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import com.android.inputmethod.keyboard.internal.SuddenJumpingTouchEventHandler;
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import com.android.inputmethod.latin.Constants;
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import com.android.inputmethod.latin.LatinIME;
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import com.android.inputmethod.latin.LatinImeLogger;
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import com.android.inputmethod.latin.R;
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import com.android.inputmethod.latin.ResourceUtils;
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import com.android.inputmethod.latin.StaticInnerHandlerWrapper;
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import com.android.inputmethod.latin.StringUtils;
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import com.android.inputmethod.latin.SubtypeLocale;
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import com.android.inputmethod.latin.Utils.UsabilityStudyLogUtils;
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import com.android.inputmethod.latin.define.ProductionFlag;
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import com.android.inputmethod.research.ResearchLogger;
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import java.util.Locale;
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import java.util.WeakHashMap;
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/**
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* A view that is responsible for detecting key presses and touch movements.
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*
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* @attr ref R.styleable#MainKeyboardView_autoCorrectionSpacebarLedEnabled
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* @attr ref R.styleable#MainKeyboardView_autoCorrectionSpacebarLedIcon
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* @attr ref R.styleable#MainKeyboardView_spacebarTextRatio
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* @attr ref R.styleable#MainKeyboardView_spacebarTextColor
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* @attr ref R.styleable#MainKeyboardView_spacebarTextShadowColor
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* @attr ref R.styleable#MainKeyboardView_languageOnSpacebarFinalAlpha
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* @attr ref R.styleable#MainKeyboardView_languageOnSpacebarFadeoutAnimator
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* @attr ref R.styleable#MainKeyboardView_altCodeKeyWhileTypingFadeoutAnimator
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* @attr ref R.styleable#MainKeyboardView_altCodeKeyWhileTypingFadeinAnimator
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* @attr ref R.styleable#MainKeyboardView_keyHysteresisDistance
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* @attr ref R.styleable#MainKeyboardView_touchNoiseThresholdTime
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* @attr ref R.styleable#MainKeyboardView_touchNoiseThresholdDistance
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* @attr ref R.styleable#MainKeyboardView_slidingKeyInputEnable
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* @attr ref R.styleable#MainKeyboardView_keyRepeatStartTimeout
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* @attr ref R.styleable#MainKeyboardView_keyRepeatInterval
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* @attr ref R.styleable#MainKeyboardView_longPressKeyTimeout
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* @attr ref R.styleable#MainKeyboardView_longPressShiftKeyTimeout
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* @attr ref R.styleable#MainKeyboardView_ignoreAltCodeKeyTimeout
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* @attr ref R.styleable#MainKeyboardView_showMoreKeysKeyboardAtTouchPoint
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* @attr ref R.styleable#MainKeyboardView_gestureStaticTimeThresholdAfterFastTyping
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* @attr ref R.styleable#MainKeyboardView_gestureDetectFastMoveSpeedThreshold
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* @attr ref R.styleable#MainKeyboardView_gestureDynamicThresholdDecayDuration
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* @attr ref R.styleable#MainKeyboardView_gestureDynamicTimeThresholdFrom
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* @attr ref R.styleable#MainKeyboardView_gestureDynamicTimeThresholdTo
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* @attr ref R.styleable#MainKeyboardView_gestureDynamicDistanceThresholdFrom
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* @attr ref R.styleable#MainKeyboardView_gestureDynamicDistanceThresholdTo
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* @attr ref R.styleable#MainKeyboardView_gestureSamplingMinimumDistance
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* @attr ref R.styleable#MainKeyboardView_gestureRecognitionMinimumTime
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* @attr ref R.styleable#MainKeyboardView_gestureRecognitionSpeedThreshold
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* @attr ref R.styleable#MainKeyboardView_suppressKeyPreviewAfterBatchInputDuration
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*/
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public final class MainKeyboardView extends KeyboardView implements PointerTracker.KeyEventHandler,
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SuddenJumpingTouchEventHandler.ProcessMotionEvent {
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private static final String TAG = MainKeyboardView.class.getSimpleName();
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// TODO: Kill process when the usability study mode was changed.
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private static final boolean ENABLE_USABILITY_STUDY_LOG = LatinImeLogger.sUsabilityStudy;
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/** Listener for {@link KeyboardActionListener}. */
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private KeyboardActionListener mKeyboardActionListener;
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/* Space key and its icons */
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private Key mSpaceKey;
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private Drawable mSpaceIcon;
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// Stuff to draw language name on spacebar.
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private final int mLanguageOnSpacebarFinalAlpha;
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private ObjectAnimator mLanguageOnSpacebarFadeoutAnimator;
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private boolean mNeedsToDisplayLanguage;
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private boolean mHasMultipleEnabledIMEsOrSubtypes;
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private int mLanguageOnSpacebarAnimAlpha = Constants.Color.ALPHA_OPAQUE;
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private final float mSpacebarTextRatio;
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private float mSpacebarTextSize;
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private final int mSpacebarTextColor;
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private final int mSpacebarTextShadowColor;
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// The minimum x-scale to fit the language name on spacebar.
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private static final float MINIMUM_XSCALE_OF_LANGUAGE_NAME = 0.8f;
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// Stuff to draw auto correction LED on spacebar.
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private boolean mAutoCorrectionSpacebarLedOn;
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private final boolean mAutoCorrectionSpacebarLedEnabled;
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private final Drawable mAutoCorrectionSpacebarLedIcon;
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private static final int SPACE_LED_LENGTH_PERCENT = 80;
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// Stuff to draw altCodeWhileTyping keys.
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private ObjectAnimator mAltCodeKeyWhileTypingFadeoutAnimator;
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private ObjectAnimator mAltCodeKeyWhileTypingFadeinAnimator;
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private int mAltCodeKeyWhileTypingAnimAlpha = Constants.Color.ALPHA_OPAQUE;
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// More keys keyboard
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private PopupWindow mMoreKeysWindow;
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private MoreKeysPanel mMoreKeysPanel;
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private int mMoreKeysPanelPointerTrackerId;
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private final WeakHashMap<Key, MoreKeysPanel> mMoreKeysPanelCache =
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new WeakHashMap<Key, MoreKeysPanel>();
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private final boolean mConfigShowMoreKeysKeyboardAtTouchedPoint;
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private final SuddenJumpingTouchEventHandler mTouchScreenRegulator;
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protected KeyDetector mKeyDetector;
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private boolean mHasDistinctMultitouch;
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private int mOldPointerCount = 1;
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private Key mOldKey;
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private final KeyTimerHandler mKeyTimerHandler;
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private static final class KeyTimerHandler extends StaticInnerHandlerWrapper<MainKeyboardView>
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implements TimerProxy {
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private static final int MSG_TYPING_STATE_EXPIRED = 0;
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private static final int MSG_REPEAT_KEY = 1;
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private static final int MSG_LONGPRESS_KEY = 2;
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private static final int MSG_DOUBLE_TAP = 3;
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private final int mKeyRepeatStartTimeout;
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private final int mKeyRepeatInterval;
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private final int mLongPressKeyTimeout;
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private final int mLongPressShiftKeyTimeout;
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private final int mIgnoreAltCodeKeyTimeout;
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public KeyTimerHandler(final MainKeyboardView outerInstance,
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final TypedArray mainKeyboardViewAttr) {
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super(outerInstance);
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mKeyRepeatStartTimeout = mainKeyboardViewAttr.getInt(
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R.styleable.MainKeyboardView_keyRepeatStartTimeout, 0);
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mKeyRepeatInterval = mainKeyboardViewAttr.getInt(
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R.styleable.MainKeyboardView_keyRepeatInterval, 0);
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mLongPressKeyTimeout = mainKeyboardViewAttr.getInt(
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R.styleable.MainKeyboardView_longPressKeyTimeout, 0);
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mLongPressShiftKeyTimeout = mainKeyboardViewAttr.getInt(
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R.styleable.MainKeyboardView_longPressShiftKeyTimeout, 0);
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mIgnoreAltCodeKeyTimeout = mainKeyboardViewAttr.getInt(
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R.styleable.MainKeyboardView_ignoreAltCodeKeyTimeout, 0);
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}
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@Override
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public void handleMessage(final Message msg) {
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final MainKeyboardView keyboardView = getOuterInstance();
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final PointerTracker tracker = (PointerTracker) msg.obj;
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switch (msg.what) {
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case MSG_TYPING_STATE_EXPIRED:
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startWhileTypingFadeinAnimation(keyboardView);
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break;
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case MSG_REPEAT_KEY:
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final Key currentKey = tracker.getKey();
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if (currentKey != null && currentKey.mCode == msg.arg1) {
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tracker.onRegisterKey(currentKey);
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startKeyRepeatTimer(tracker, mKeyRepeatInterval);
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}
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break;
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case MSG_LONGPRESS_KEY:
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if (tracker != null) {
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keyboardView.openMoreKeysKeyboardIfRequired(tracker.getKey(), tracker);
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} else {
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KeyboardSwitcher.getInstance().onLongPressTimeout(msg.arg1);
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}
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break;
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}
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}
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private void startKeyRepeatTimer(final PointerTracker tracker, final long delay) {
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final Key key = tracker.getKey();
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if (key == null) return;
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sendMessageDelayed(obtainMessage(MSG_REPEAT_KEY, key.mCode, 0, tracker), delay);
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}
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@Override
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public void startKeyRepeatTimer(final PointerTracker tracker) {
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startKeyRepeatTimer(tracker, mKeyRepeatStartTimeout);
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}
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public void cancelKeyRepeatTimer() {
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removeMessages(MSG_REPEAT_KEY);
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}
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// TODO: Suppress layout changes in key repeat mode
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public boolean isInKeyRepeat() {
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return hasMessages(MSG_REPEAT_KEY);
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}
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@Override
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public void startLongPressTimer(final int code) {
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cancelLongPressTimer();
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final int delay;
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switch (code) {
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case Keyboard.CODE_SHIFT:
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delay = mLongPressShiftKeyTimeout;
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break;
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default:
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delay = 0;
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break;
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}
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if (delay > 0) {
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sendMessageDelayed(obtainMessage(MSG_LONGPRESS_KEY, code, 0), delay);
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}
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}
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@Override
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public void startLongPressTimer(final PointerTracker tracker) {
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cancelLongPressTimer();
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if (tracker == null) {
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return;
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}
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final Key key = tracker.getKey();
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final int delay;
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switch (key.mCode) {
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case Keyboard.CODE_SHIFT:
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delay = mLongPressShiftKeyTimeout;
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break;
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default:
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if (KeyboardSwitcher.getInstance().isInMomentarySwitchState()) {
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// We use longer timeout for sliding finger input started from the symbols
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// mode key.
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delay = mLongPressKeyTimeout * 3;
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} else {
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delay = mLongPressKeyTimeout;
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}
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break;
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}
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if (delay > 0) {
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sendMessageDelayed(obtainMessage(MSG_LONGPRESS_KEY, tracker), delay);
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}
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}
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@Override
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public void cancelLongPressTimer() {
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removeMessages(MSG_LONGPRESS_KEY);
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}
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private static void cancelAndStartAnimators(final ObjectAnimator animatorToCancel,
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final ObjectAnimator animatorToStart) {
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float startFraction = 0.0f;
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if (animatorToCancel.isStarted()) {
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animatorToCancel.cancel();
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startFraction = 1.0f - animatorToCancel.getAnimatedFraction();
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}
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final long startTime = (long)(animatorToStart.getDuration() * startFraction);
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animatorToStart.start();
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animatorToStart.setCurrentPlayTime(startTime);
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}
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private static void startWhileTypingFadeinAnimation(final MainKeyboardView keyboardView) {
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cancelAndStartAnimators(keyboardView.mAltCodeKeyWhileTypingFadeoutAnimator,
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keyboardView.mAltCodeKeyWhileTypingFadeinAnimator);
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}
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private static void startWhileTypingFadeoutAnimation(final MainKeyboardView keyboardView) {
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cancelAndStartAnimators(keyboardView.mAltCodeKeyWhileTypingFadeinAnimator,
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keyboardView.mAltCodeKeyWhileTypingFadeoutAnimator);
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}
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@Override
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public void startTypingStateTimer(final Key typedKey) {
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if (typedKey.isModifier() || typedKey.altCodeWhileTyping()) {
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return;
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}
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final boolean isTyping = isTypingState();
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removeMessages(MSG_TYPING_STATE_EXPIRED);
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final MainKeyboardView keyboardView = getOuterInstance();
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// When user hits the space or the enter key, just cancel the while-typing timer.
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final int typedCode = typedKey.mCode;
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if (typedCode == Keyboard.CODE_SPACE || typedCode == Keyboard.CODE_ENTER) {
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startWhileTypingFadeinAnimation(keyboardView);
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return;
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}
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sendMessageDelayed(
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obtainMessage(MSG_TYPING_STATE_EXPIRED), mIgnoreAltCodeKeyTimeout);
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if (isTyping) {
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return;
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}
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startWhileTypingFadeoutAnimation(keyboardView);
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}
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@Override
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public boolean isTypingState() {
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return hasMessages(MSG_TYPING_STATE_EXPIRED);
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}
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@Override
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public void startDoubleTapTimer() {
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sendMessageDelayed(obtainMessage(MSG_DOUBLE_TAP),
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ViewConfiguration.getDoubleTapTimeout());
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}
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@Override
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public void cancelDoubleTapTimer() {
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removeMessages(MSG_DOUBLE_TAP);
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}
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@Override
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public boolean isInDoubleTapTimeout() {
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return hasMessages(MSG_DOUBLE_TAP);
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}
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@Override
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public void cancelKeyTimers() {
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cancelKeyRepeatTimer();
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cancelLongPressTimer();
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}
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public void cancelAllMessages() {
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cancelKeyTimers();
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}
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}
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public MainKeyboardView(final Context context, final AttributeSet attrs) {
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this(context, attrs, R.attr.mainKeyboardViewStyle);
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}
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public MainKeyboardView(final Context context, final AttributeSet attrs, final int defStyle) {
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super(context, attrs, defStyle);
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mTouchScreenRegulator = new SuddenJumpingTouchEventHandler(getContext(), this);
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mHasDistinctMultitouch = context.getPackageManager()
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.hasSystemFeature(PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT);
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final Resources res = getResources();
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final boolean needsPhantomSuddenMoveEventHack = Boolean.parseBoolean(
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ResourceUtils.getDeviceOverrideValue(res,
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R.array.phantom_sudden_move_event_device_list, "false"));
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PointerTracker.init(mHasDistinctMultitouch, needsPhantomSuddenMoveEventHack);
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final TypedArray a = context.obtainStyledAttributes(
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attrs, R.styleable.MainKeyboardView, defStyle, R.style.MainKeyboardView);
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mAutoCorrectionSpacebarLedEnabled = a.getBoolean(
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R.styleable.MainKeyboardView_autoCorrectionSpacebarLedEnabled, false);
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mAutoCorrectionSpacebarLedIcon = a.getDrawable(
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R.styleable.MainKeyboardView_autoCorrectionSpacebarLedIcon);
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mSpacebarTextRatio = a.getFraction(
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R.styleable.MainKeyboardView_spacebarTextRatio, 1, 1, 1.0f);
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mSpacebarTextColor = a.getColor(R.styleable.MainKeyboardView_spacebarTextColor, 0);
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mSpacebarTextShadowColor = a.getColor(
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R.styleable.MainKeyboardView_spacebarTextShadowColor, 0);
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mLanguageOnSpacebarFinalAlpha = a.getInt(
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R.styleable.MainKeyboardView_languageOnSpacebarFinalAlpha,
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Constants.Color.ALPHA_OPAQUE);
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final int languageOnSpacebarFadeoutAnimatorResId = a.getResourceId(
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R.styleable.MainKeyboardView_languageOnSpacebarFadeoutAnimator, 0);
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final int altCodeKeyWhileTypingFadeoutAnimatorResId = a.getResourceId(
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R.styleable.MainKeyboardView_altCodeKeyWhileTypingFadeoutAnimator, 0);
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final int altCodeKeyWhileTypingFadeinAnimatorResId = a.getResourceId(
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R.styleable.MainKeyboardView_altCodeKeyWhileTypingFadeinAnimator, 0);
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final float keyHysteresisDistance = a.getDimension(
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R.styleable.MainKeyboardView_keyHysteresisDistance, 0);
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final float keyHysteresisDistanceForSlidingModifier = a.getDimension(
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R.styleable.MainKeyboardView_keyHysteresisDistanceForSlidingModifier, 0);
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mKeyDetector = new KeyDetector(
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keyHysteresisDistance, keyHysteresisDistanceForSlidingModifier);
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mKeyTimerHandler = new KeyTimerHandler(this, a);
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mConfigShowMoreKeysKeyboardAtTouchedPoint = a.getBoolean(
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R.styleable.MainKeyboardView_showMoreKeysKeyboardAtTouchedPoint, false);
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PointerTracker.setParameters(a);
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a.recycle();
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mLanguageOnSpacebarFadeoutAnimator = loadObjectAnimator(
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languageOnSpacebarFadeoutAnimatorResId, this);
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mAltCodeKeyWhileTypingFadeoutAnimator = loadObjectAnimator(
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altCodeKeyWhileTypingFadeoutAnimatorResId, this);
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mAltCodeKeyWhileTypingFadeinAnimator = loadObjectAnimator(
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altCodeKeyWhileTypingFadeinAnimatorResId, this);
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}
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private ObjectAnimator loadObjectAnimator(final int resId, final Object target) {
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if (resId == 0) return null;
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final ObjectAnimator animator = (ObjectAnimator)AnimatorInflater.loadAnimator(
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getContext(), resId);
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if (animator != null) {
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animator.setTarget(target);
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}
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return animator;
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}
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// Getter/setter methods for {@link ObjectAnimator}.
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public int getLanguageOnSpacebarAnimAlpha() {
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return mLanguageOnSpacebarAnimAlpha;
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}
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public void setLanguageOnSpacebarAnimAlpha(final int alpha) {
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mLanguageOnSpacebarAnimAlpha = alpha;
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invalidateKey(mSpaceKey);
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}
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public int getAltCodeKeyWhileTypingAnimAlpha() {
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return mAltCodeKeyWhileTypingAnimAlpha;
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}
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public void setAltCodeKeyWhileTypingAnimAlpha(final int alpha) {
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mAltCodeKeyWhileTypingAnimAlpha = alpha;
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updateAltCodeKeyWhileTyping();
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}
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public void setKeyboardActionListener(final KeyboardActionListener listener) {
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mKeyboardActionListener = listener;
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PointerTracker.setKeyboardActionListener(listener);
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}
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/**
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* Returns the {@link KeyboardActionListener} object.
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* @return the listener attached to this keyboard
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*/
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@Override
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public KeyboardActionListener getKeyboardActionListener() {
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return mKeyboardActionListener;
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}
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@Override
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public KeyDetector getKeyDetector() {
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return mKeyDetector;
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}
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@Override
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public DrawingProxy getDrawingProxy() {
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return this;
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}
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@Override
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public TimerProxy getTimerProxy() {
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return mKeyTimerHandler;
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}
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/**
|
|
* 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 Keyboard
|
|
* @see #getKeyboard()
|
|
* @param keyboard the keyboard to display in this view
|
|
*/
|
|
@Override
|
|
public void setKeyboard(final Keyboard keyboard) {
|
|
// Remove any pending messages, except dismissing preview and key repeat.
|
|
mKeyTimerHandler.cancelLongPressTimer();
|
|
super.setKeyboard(keyboard);
|
|
mKeyDetector.setKeyboard(
|
|
keyboard, -getPaddingLeft(), -getPaddingTop() + mVerticalCorrection);
|
|
PointerTracker.setKeyDetector(mKeyDetector);
|
|
mTouchScreenRegulator.setKeyboard(keyboard);
|
|
mMoreKeysPanelCache.clear();
|
|
|
|
mSpaceKey = keyboard.getKey(Keyboard.CODE_SPACE);
|
|
mSpaceIcon = (mSpaceKey != null)
|
|
? mSpaceKey.getIcon(keyboard.mIconsSet, Constants.Color.ALPHA_OPAQUE) : null;
|
|
final int keyHeight = keyboard.mMostCommonKeyHeight - keyboard.mVerticalGap;
|
|
mSpacebarTextSize = keyHeight * mSpacebarTextRatio;
|
|
if (ProductionFlag.IS_EXPERIMENTAL) {
|
|
ResearchLogger.mainKeyboardView_setKeyboard(keyboard);
|
|
}
|
|
|
|
// This always needs to be set since the accessibility state can
|
|
// potentially change without the keyboard being set again.
|
|
AccessibleKeyboardViewProxy.getInstance().setKeyboard(keyboard);
|
|
}
|
|
|
|
// Note that this method is called from a non-UI thread.
|
|
public void setMainDictionaryAvailability(final boolean mainDictionaryAvailable) {
|
|
PointerTracker.setMainDictionaryAvailability(mainDictionaryAvailable);
|
|
}
|
|
|
|
public void setGestureHandlingEnabledByUser(final boolean gestureHandlingEnabledByUser) {
|
|
PointerTracker.setGestureHandlingEnabledByUser(gestureHandlingEnabledByUser);
|
|
}
|
|
|
|
/**
|
|
* Returns whether the device has distinct multi-touch panel.
|
|
* @return true if the device has distinct multi-touch panel.
|
|
*/
|
|
public boolean hasDistinctMultitouch() {
|
|
return mHasDistinctMultitouch;
|
|
}
|
|
|
|
public void setDistinctMultitouch(final boolean hasDistinctMultitouch) {
|
|
mHasDistinctMultitouch = hasDistinctMultitouch;
|
|
}
|
|
|
|
@Override
|
|
protected void onAttachedToWindow() {
|
|
super.onAttachedToWindow();
|
|
// Notify the research logger that the keyboard view has been attached. This is needed
|
|
// to properly show the splash screen, which requires that the window token of the
|
|
// KeyboardView be non-null.
|
|
if (ProductionFlag.IS_EXPERIMENTAL) {
|
|
ResearchLogger.getInstance().mainKeyboardView_onAttachedToWindow(this);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
protected void onDetachedFromWindow() {
|
|
super.onDetachedFromWindow();
|
|
// Notify the research logger that the keyboard view has been detached. This is needed
|
|
// to invalidate the reference of {@link MainKeyboardView} to null.
|
|
if (ProductionFlag.IS_EXPERIMENTAL) {
|
|
ResearchLogger.getInstance().mainKeyboardView_onDetachedFromWindow();
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public void cancelAllMessages() {
|
|
mKeyTimerHandler.cancelAllMessages();
|
|
super.cancelAllMessages();
|
|
}
|
|
|
|
private boolean openMoreKeysKeyboardIfRequired(final Key parentKey,
|
|
final PointerTracker tracker) {
|
|
// Check if we have a popup layout specified first.
|
|
if (mMoreKeysLayout == 0) {
|
|
return false;
|
|
}
|
|
|
|
// Check if we are already displaying popup panel.
|
|
if (mMoreKeysPanel != null)
|
|
return false;
|
|
if (parentKey == null)
|
|
return false;
|
|
return onLongPress(parentKey, tracker);
|
|
}
|
|
|
|
// This default implementation returns a more keys panel.
|
|
protected MoreKeysPanel onCreateMoreKeysPanel(final Key parentKey) {
|
|
if (parentKey.mMoreKeys == null)
|
|
return null;
|
|
|
|
final View container = LayoutInflater.from(getContext()).inflate(mMoreKeysLayout, null);
|
|
if (container == null)
|
|
throw new NullPointerException();
|
|
|
|
final MoreKeysKeyboardView moreKeysKeyboardView =
|
|
(MoreKeysKeyboardView)container.findViewById(R.id.more_keys_keyboard_view);
|
|
final Keyboard moreKeysKeyboard = new MoreKeysKeyboard.Builder(container, parentKey, this)
|
|
.build();
|
|
moreKeysKeyboardView.setKeyboard(moreKeysKeyboard);
|
|
container.measure(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
|
|
|
|
return moreKeysKeyboardView;
|
|
}
|
|
|
|
/**
|
|
* Called when a key is long pressed. By default this will open more keys keyboard associated
|
|
* with this key.
|
|
* @param parentKey the key that was long pressed
|
|
* @param tracker the pointer tracker which pressed the parent key
|
|
* @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(final Key parentKey, final PointerTracker tracker) {
|
|
if (ProductionFlag.IS_EXPERIMENTAL) {
|
|
ResearchLogger.mainKeyboardView_onLongPress();
|
|
}
|
|
final int primaryCode = parentKey.mCode;
|
|
if (parentKey.hasEmbeddedMoreKey()) {
|
|
final int embeddedCode = parentKey.mMoreKeys[0].mCode;
|
|
tracker.onLongPressed();
|
|
invokeCodeInput(embeddedCode);
|
|
invokeReleaseKey(primaryCode);
|
|
KeyboardSwitcher.getInstance().hapticAndAudioFeedback(primaryCode);
|
|
return true;
|
|
}
|
|
if (primaryCode == Keyboard.CODE_SPACE || primaryCode == Keyboard.CODE_LANGUAGE_SWITCH) {
|
|
// Long pressing the space key invokes IME switcher dialog.
|
|
if (invokeCustomRequest(LatinIME.CODE_SHOW_INPUT_METHOD_PICKER)) {
|
|
tracker.onLongPressed();
|
|
invokeReleaseKey(primaryCode);
|
|
return true;
|
|
}
|
|
}
|
|
return openMoreKeysPanel(parentKey, tracker);
|
|
}
|
|
|
|
private boolean invokeCustomRequest(final int code) {
|
|
return mKeyboardActionListener.onCustomRequest(code);
|
|
}
|
|
|
|
private void invokeCodeInput(final int primaryCode) {
|
|
mKeyboardActionListener.onCodeInput(
|
|
primaryCode, Constants.NOT_A_COORDINATE, Constants.NOT_A_COORDINATE);
|
|
}
|
|
|
|
private void invokeReleaseKey(final int primaryCode) {
|
|
mKeyboardActionListener.onReleaseKey(primaryCode, false);
|
|
}
|
|
|
|
private boolean openMoreKeysPanel(final Key parentKey, final PointerTracker tracker) {
|
|
MoreKeysPanel moreKeysPanel = mMoreKeysPanelCache.get(parentKey);
|
|
if (moreKeysPanel == null) {
|
|
moreKeysPanel = onCreateMoreKeysPanel(parentKey);
|
|
if (moreKeysPanel == null)
|
|
return false;
|
|
mMoreKeysPanelCache.put(parentKey, moreKeysPanel);
|
|
}
|
|
if (mMoreKeysWindow == null) {
|
|
mMoreKeysWindow = new PopupWindow(getContext());
|
|
mMoreKeysWindow.setBackgroundDrawable(null);
|
|
mMoreKeysWindow.setAnimationStyle(R.style.MoreKeysKeyboardAnimation);
|
|
}
|
|
mMoreKeysPanel = moreKeysPanel;
|
|
mMoreKeysPanelPointerTrackerId = tracker.mPointerId;
|
|
|
|
final boolean keyPreviewEnabled = isKeyPreviewPopupEnabled() && !parentKey.noKeyPreview();
|
|
// The more keys keyboard is usually horizontally aligned with the center of the parent key.
|
|
// If showMoreKeysKeyboardAtTouchedPoint is true and the key preview is disabled, the more
|
|
// keys keyboard is placed at the touch point of the parent key.
|
|
final int pointX = (mConfigShowMoreKeysKeyboardAtTouchedPoint && !keyPreviewEnabled)
|
|
? tracker.getLastX()
|
|
: parentKey.mX + parentKey.mWidth / 2;
|
|
// The more keys keyboard is usually vertically aligned with the top edge of the parent key
|
|
// (plus vertical gap). If the key preview is enabled, the more keys keyboard is vertically
|
|
// aligned with the bottom edge of the visible part of the key preview.
|
|
// {@code mPreviewVisibleOffset} has been set appropriately in
|
|
// {@link KeyboardView#showKeyPreview(PointerTracker)}.
|
|
final int pointY = parentKey.mY + mKeyPreviewDrawParams.mPreviewVisibleOffset;
|
|
moreKeysPanel.showMoreKeysPanel(
|
|
this, this, pointX, pointY, mMoreKeysWindow, mKeyboardActionListener);
|
|
final int translatedX = moreKeysPanel.translateX(tracker.getLastX());
|
|
final int translatedY = moreKeysPanel.translateY(tracker.getLastY());
|
|
tracker.onShowMoreKeysPanel(translatedX, translatedY, moreKeysPanel);
|
|
dimEntireKeyboard(true);
|
|
return true;
|
|
}
|
|
|
|
public boolean isInSlidingKeyInput() {
|
|
if (mMoreKeysPanel != null) {
|
|
return true;
|
|
} else {
|
|
return PointerTracker.isAnyInSlidingKeyInput();
|
|
}
|
|
}
|
|
|
|
public int getPointerCount() {
|
|
return mOldPointerCount;
|
|
}
|
|
|
|
@Override
|
|
public boolean dispatchTouchEvent(MotionEvent event) {
|
|
if (AccessibilityUtils.getInstance().isTouchExplorationEnabled()) {
|
|
return AccessibleKeyboardViewProxy.getInstance().dispatchTouchEvent(event);
|
|
}
|
|
return super.dispatchTouchEvent(event);
|
|
}
|
|
|
|
@Override
|
|
public boolean onTouchEvent(final MotionEvent me) {
|
|
if (getKeyboard() == null) {
|
|
return false;
|
|
}
|
|
return mTouchScreenRegulator.onTouchEvent(me);
|
|
}
|
|
|
|
@Override
|
|
public boolean processMotionEvent(final MotionEvent me) {
|
|
final boolean nonDistinctMultitouch = !mHasDistinctMultitouch;
|
|
final int action = me.getActionMasked();
|
|
final int pointerCount = me.getPointerCount();
|
|
final int oldPointerCount = mOldPointerCount;
|
|
mOldPointerCount = pointerCount;
|
|
|
|
// 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 (nonDistinctMultitouch && pointerCount > 1 && oldPointerCount > 1) {
|
|
return true;
|
|
}
|
|
|
|
final long eventTime = me.getEventTime();
|
|
final int index = me.getActionIndex();
|
|
final int id = me.getPointerId(index);
|
|
final int x, y;
|
|
if (mMoreKeysPanel != null && id == mMoreKeysPanelPointerTrackerId) {
|
|
x = mMoreKeysPanel.translateX((int)me.getX(index));
|
|
y = mMoreKeysPanel.translateY((int)me.getY(index));
|
|
} else {
|
|
x = (int)me.getX(index);
|
|
y = (int)me.getY(index);
|
|
}
|
|
if (ENABLE_USABILITY_STUDY_LOG) {
|
|
final String eventTag;
|
|
switch (action) {
|
|
case MotionEvent.ACTION_UP:
|
|
eventTag = "[Up]";
|
|
break;
|
|
case MotionEvent.ACTION_DOWN:
|
|
eventTag = "[Down]";
|
|
break;
|
|
case MotionEvent.ACTION_POINTER_UP:
|
|
eventTag = "[PointerUp]";
|
|
break;
|
|
case MotionEvent.ACTION_POINTER_DOWN:
|
|
eventTag = "[PointerDown]";
|
|
break;
|
|
case MotionEvent.ACTION_MOVE: // Skip this as being logged below
|
|
eventTag = "";
|
|
break;
|
|
default:
|
|
eventTag = "[Action" + action + "]";
|
|
break;
|
|
}
|
|
if (!TextUtils.isEmpty(eventTag)) {
|
|
final float size = me.getSize(index);
|
|
final float pressure = me.getPressure(index);
|
|
UsabilityStudyLogUtils.getInstance().write(
|
|
eventTag + eventTime + "," + id + "," + x + "," + y + ","
|
|
+ size + "," + pressure);
|
|
}
|
|
}
|
|
if (ProductionFlag.IS_EXPERIMENTAL) {
|
|
ResearchLogger.mainKeyboardView_processMotionEvent(me, action, eventTime, index, id,
|
|
x, y);
|
|
}
|
|
|
|
if (mKeyTimerHandler.isInKeyRepeat()) {
|
|
final PointerTracker tracker = PointerTracker.getPointerTracker(id, this);
|
|
// 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()) {
|
|
mKeyTimerHandler.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 (nonDistinctMultitouch) {
|
|
// Use only main (id=0) pointer tracker.
|
|
final PointerTracker tracker = PointerTracker.getPointerTracker(0, this);
|
|
if (pointerCount == 1 && oldPointerCount == 2) {
|
|
// Multi-touch to single touch transition.
|
|
// Send a down event for the latest pointer if the key is different from the
|
|
// previous key.
|
|
final Key newKey = tracker.getKeyOn(x, y);
|
|
if (mOldKey != newKey) {
|
|
tracker.onDownEvent(x, y, eventTime, this);
|
|
if (action == MotionEvent.ACTION_UP)
|
|
tracker.onUpEvent(x, y, eventTime);
|
|
}
|
|
} else if (pointerCount == 2 && oldPointerCount == 1) {
|
|
// Single-touch to multi-touch transition.
|
|
// Send an up event for the last pointer.
|
|
final int lastX = tracker.getLastX();
|
|
final int lastY = tracker.getLastY();
|
|
mOldKey = tracker.getKeyOn(lastX, lastY);
|
|
tracker.onUpEvent(lastX, lastY, eventTime);
|
|
} else if (pointerCount == 1 && oldPointerCount == 1) {
|
|
tracker.processMotionEvent(action, x, y, eventTime, this);
|
|
} else {
|
|
Log.w(TAG, "Unknown touch panel behavior: pointer count is " + pointerCount
|
|
+ " (old " + oldPointerCount + ")");
|
|
}
|
|
return true;
|
|
}
|
|
|
|
if (action == MotionEvent.ACTION_MOVE) {
|
|
for (int i = 0; i < pointerCount; i++) {
|
|
final int pointerId = me.getPointerId(i);
|
|
final PointerTracker tracker = PointerTracker.getPointerTracker(
|
|
pointerId, this);
|
|
final int px, py;
|
|
final MotionEvent motionEvent;
|
|
if (mMoreKeysPanel != null
|
|
&& tracker.mPointerId == mMoreKeysPanelPointerTrackerId) {
|
|
px = mMoreKeysPanel.translateX((int)me.getX(i));
|
|
py = mMoreKeysPanel.translateY((int)me.getY(i));
|
|
motionEvent = null;
|
|
} else {
|
|
px = (int)me.getX(i);
|
|
py = (int)me.getY(i);
|
|
motionEvent = me;
|
|
}
|
|
tracker.onMoveEvent(px, py, eventTime, motionEvent);
|
|
if (ENABLE_USABILITY_STUDY_LOG) {
|
|
final float pointerSize = me.getSize(i);
|
|
final float pointerPressure = me.getPressure(i);
|
|
UsabilityStudyLogUtils.getInstance().write("[Move]" + eventTime + ","
|
|
+ pointerId + "," + px + "," + py + ","
|
|
+ pointerSize + "," + pointerPressure);
|
|
}
|
|
if (ProductionFlag.IS_EXPERIMENTAL) {
|
|
ResearchLogger.mainKeyboardView_processMotionEvent(me, action, eventTime,
|
|
i, pointerId, px, py);
|
|
}
|
|
}
|
|
} else {
|
|
final PointerTracker tracker = PointerTracker.getPointerTracker(id, this);
|
|
tracker.processMotionEvent(action, x, y, eventTime, this);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
@Override
|
|
public void closing() {
|
|
super.closing();
|
|
dismissMoreKeysPanel();
|
|
mMoreKeysPanelCache.clear();
|
|
}
|
|
|
|
@Override
|
|
public boolean dismissMoreKeysPanel() {
|
|
if (mMoreKeysWindow != null && mMoreKeysWindow.isShowing()) {
|
|
mMoreKeysWindow.dismiss();
|
|
mMoreKeysPanel = null;
|
|
mMoreKeysPanelPointerTrackerId = -1;
|
|
dimEntireKeyboard(false);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Receives hover events from the input framework.
|
|
*
|
|
* @param event The motion event to be dispatched.
|
|
* @return {@code true} if the event was handled by the view, {@code false}
|
|
* otherwise
|
|
*/
|
|
@Override
|
|
public boolean dispatchHoverEvent(final MotionEvent event) {
|
|
if (AccessibilityUtils.getInstance().isTouchExplorationEnabled()) {
|
|
final PointerTracker tracker = PointerTracker.getPointerTracker(0, this);
|
|
return AccessibleKeyboardViewProxy.getInstance().dispatchHoverEvent(event, tracker);
|
|
}
|
|
|
|
// Reflection doesn't support calling superclass methods.
|
|
return false;
|
|
}
|
|
|
|
public void updateShortcutKey(final boolean available) {
|
|
final Keyboard keyboard = getKeyboard();
|
|
if (keyboard == null) return;
|
|
final Key shortcutKey = keyboard.getKey(Keyboard.CODE_SHORTCUT);
|
|
if (shortcutKey == null) return;
|
|
shortcutKey.setEnabled(available);
|
|
invalidateKey(shortcutKey);
|
|
}
|
|
|
|
private void updateAltCodeKeyWhileTyping() {
|
|
final Keyboard keyboard = getKeyboard();
|
|
if (keyboard == null) return;
|
|
for (final Key key : keyboard.mAltCodeKeysWhileTyping) {
|
|
invalidateKey(key);
|
|
}
|
|
}
|
|
|
|
public void startDisplayLanguageOnSpacebar(final boolean subtypeChanged,
|
|
final boolean needsToDisplayLanguage, final boolean hasMultipleEnabledIMEsOrSubtypes) {
|
|
mNeedsToDisplayLanguage = needsToDisplayLanguage;
|
|
mHasMultipleEnabledIMEsOrSubtypes = hasMultipleEnabledIMEsOrSubtypes;
|
|
final ObjectAnimator animator = mLanguageOnSpacebarFadeoutAnimator;
|
|
if (animator == null) {
|
|
mNeedsToDisplayLanguage = false;
|
|
} else {
|
|
if (subtypeChanged && needsToDisplayLanguage) {
|
|
setLanguageOnSpacebarAnimAlpha(Constants.Color.ALPHA_OPAQUE);
|
|
if (animator.isStarted()) {
|
|
animator.cancel();
|
|
}
|
|
animator.start();
|
|
} else {
|
|
if (!animator.isStarted()) {
|
|
mLanguageOnSpacebarAnimAlpha = mLanguageOnSpacebarFinalAlpha;
|
|
}
|
|
}
|
|
}
|
|
invalidateKey(mSpaceKey);
|
|
}
|
|
|
|
public void updateAutoCorrectionState(final boolean isAutoCorrection) {
|
|
if (!mAutoCorrectionSpacebarLedEnabled) return;
|
|
mAutoCorrectionSpacebarLedOn = isAutoCorrection;
|
|
invalidateKey(mSpaceKey);
|
|
}
|
|
|
|
@Override
|
|
protected void onDrawKeyTopVisuals(final Key key, final Canvas canvas, final Paint paint,
|
|
final KeyDrawParams params) {
|
|
if (key.altCodeWhileTyping() && key.isEnabled()) {
|
|
params.mAnimAlpha = mAltCodeKeyWhileTypingAnimAlpha;
|
|
}
|
|
if (key.mCode == Keyboard.CODE_SPACE) {
|
|
drawSpacebar(key, canvas, paint);
|
|
// Whether space key needs to show the "..." popup hint for special purposes
|
|
if (key.isLongPressEnabled() && mHasMultipleEnabledIMEsOrSubtypes) {
|
|
drawKeyPopupHint(key, canvas, paint, params);
|
|
}
|
|
} else if (key.mCode == Keyboard.CODE_LANGUAGE_SWITCH) {
|
|
super.onDrawKeyTopVisuals(key, canvas, paint, params);
|
|
drawKeyPopupHint(key, canvas, paint, params);
|
|
} else {
|
|
super.onDrawKeyTopVisuals(key, canvas, paint, params);
|
|
}
|
|
}
|
|
|
|
private boolean fitsTextIntoWidth(final int width, final String text, final Paint paint) {
|
|
paint.setTextScaleX(1.0f);
|
|
final float textWidth = getLabelWidth(text, paint);
|
|
if (textWidth < width) return true;
|
|
|
|
final float scaleX = width / textWidth;
|
|
if (scaleX < MINIMUM_XSCALE_OF_LANGUAGE_NAME) return false;
|
|
|
|
paint.setTextScaleX(scaleX);
|
|
return getLabelWidth(text, paint) < width;
|
|
}
|
|
|
|
// Layout language name on spacebar.
|
|
private String layoutLanguageOnSpacebar(final Paint paint, final InputMethodSubtype subtype,
|
|
final int width) {
|
|
// Choose appropriate language name to fit into the width.
|
|
String text = getFullDisplayName(subtype, getResources());
|
|
if (fitsTextIntoWidth(width, text, paint)) {
|
|
return text;
|
|
}
|
|
|
|
text = getMiddleDisplayName(subtype);
|
|
if (fitsTextIntoWidth(width, text, paint)) {
|
|
return text;
|
|
}
|
|
|
|
text = getShortDisplayName(subtype);
|
|
if (fitsTextIntoWidth(width, text, paint)) {
|
|
return text;
|
|
}
|
|
|
|
return "";
|
|
}
|
|
|
|
private void drawSpacebar(final Key key, final Canvas canvas, final Paint paint) {
|
|
final int width = key.mWidth;
|
|
final int height = key.mHeight;
|
|
|
|
// If input language are explicitly selected.
|
|
if (mNeedsToDisplayLanguage) {
|
|
paint.setTextAlign(Align.CENTER);
|
|
paint.setTypeface(Typeface.DEFAULT);
|
|
paint.setTextSize(mSpacebarTextSize);
|
|
final InputMethodSubtype subtype = getKeyboard().mId.mSubtype;
|
|
final String language = layoutLanguageOnSpacebar(paint, subtype, width);
|
|
// Draw language text with shadow
|
|
final float descent = paint.descent();
|
|
final float textHeight = -paint.ascent() + descent;
|
|
final float baseline = height / 2 + textHeight / 2;
|
|
paint.setColor(mSpacebarTextShadowColor);
|
|
paint.setAlpha(mLanguageOnSpacebarAnimAlpha);
|
|
canvas.drawText(language, width / 2, baseline - descent - 1, paint);
|
|
paint.setColor(mSpacebarTextColor);
|
|
paint.setAlpha(mLanguageOnSpacebarAnimAlpha);
|
|
canvas.drawText(language, width / 2, baseline - descent, paint);
|
|
}
|
|
|
|
// Draw the spacebar icon at the bottom
|
|
if (mAutoCorrectionSpacebarLedOn) {
|
|
final int iconWidth = width * SPACE_LED_LENGTH_PERCENT / 100;
|
|
final int iconHeight = mAutoCorrectionSpacebarLedIcon.getIntrinsicHeight();
|
|
int x = (width - iconWidth) / 2;
|
|
int y = height - iconHeight;
|
|
drawIcon(canvas, mAutoCorrectionSpacebarLedIcon, x, y, iconWidth, iconHeight);
|
|
} else if (mSpaceIcon != null) {
|
|
final int iconWidth = mSpaceIcon.getIntrinsicWidth();
|
|
final int iconHeight = mSpaceIcon.getIntrinsicHeight();
|
|
int x = (width - iconWidth) / 2;
|
|
int y = height - iconHeight;
|
|
drawIcon(canvas, mSpaceIcon, x, y, iconWidth, iconHeight);
|
|
}
|
|
}
|
|
|
|
// InputMethodSubtype's display name for spacebar text in its locale.
|
|
// isAdditionalSubtype (T=true, F=false)
|
|
// locale layout | Short Middle Full
|
|
// ------ ------ - ---- --------- ----------------------
|
|
// en_US qwerty F En English English (US) exception
|
|
// en_GB qwerty F En English English (UK) exception
|
|
// fr azerty F Fr Français Français
|
|
// fr_CA qwerty F Fr Français Français (Canada)
|
|
// de qwertz F De Deutsch Deutsch
|
|
// zz qwerty F QWERTY QWERTY
|
|
// fr qwertz T Fr Français Français (QWERTZ)
|
|
// de qwerty T De Deutsch Deutsch (QWERTY)
|
|
// en_US azerty T En English English (US) (AZERTY)
|
|
// zz azerty T AZERTY AZERTY
|
|
|
|
// Get InputMethodSubtype's full display name in its locale.
|
|
static String getFullDisplayName(final InputMethodSubtype subtype, final Resources res) {
|
|
if (SubtypeLocale.isNoLanguage(subtype)) {
|
|
return SubtypeLocale.getKeyboardLayoutSetDisplayName(subtype);
|
|
}
|
|
|
|
return SubtypeLocale.getSubtypeDisplayName(subtype, res);
|
|
}
|
|
|
|
// Get InputMethodSubtype's short display name in its locale.
|
|
static String getShortDisplayName(final InputMethodSubtype subtype) {
|
|
if (SubtypeLocale.isNoLanguage(subtype)) {
|
|
return "";
|
|
}
|
|
final Locale locale = SubtypeLocale.getSubtypeLocale(subtype);
|
|
return StringUtils.toTitleCase(locale.getLanguage(), locale);
|
|
}
|
|
|
|
// Get InputMethodSubtype's middle display name in its locale.
|
|
static String getMiddleDisplayName(final InputMethodSubtype subtype) {
|
|
if (SubtypeLocale.isNoLanguage(subtype)) {
|
|
return SubtypeLocale.getKeyboardLayoutSetDisplayName(subtype);
|
|
}
|
|
final Locale locale = SubtypeLocale.getSubtypeLocale(subtype);
|
|
return StringUtils.toTitleCase(locale.getDisplayLanguage(locale), locale);
|
|
}
|
|
}
|