919 lines
37 KiB
Java
919 lines
37 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.ValueAnimator;
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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.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.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.deprecated.VoiceProxy;
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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.KeySpecParser;
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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.StaticInnerHandlerWrapper;
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import com.android.inputmethod.latin.StringUtils;
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import com.android.inputmethod.latin.SubtypeUtils;
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import com.android.inputmethod.latin.Utils;
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import com.android.inputmethod.latin.Utils.UsabilityStudyLogUtils;
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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#KeyboardView_keyHysteresisDistance
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* @attr ref R.styleable#KeyboardView_verticalCorrection
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* @attr ref R.styleable#KeyboardView_popupLayout
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*/
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public class LatinKeyboardView extends KeyboardView implements PointerTracker.KeyEventHandler,
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SuddenJumpingTouchEventHandler.ProcessMotionEvent {
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private static final String TAG = LatinKeyboardView.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 ValueAnimator mLanguageOnSpacebarAnimator;
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private int mFinalAlphaOfLanguageOnSpacebar;
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private int mDurationOfFadeoutLanguageOnSpacebar;
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private static final int ALPHA_OPAQUE = 255;
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private static final int LANGUAGE_ON_SPACEBAR_NEVER_DISPLAY = 0;
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private static final int LANGUAGE_ON_SPACEBAR_ALWAYS_DISPLAY = -1;
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private boolean mNeedsToDisplayLanguage;
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private Locale mSpacebarLocale;
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private int mSpacebarTextAlpha;
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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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// If the full language name needs to be smaller than this value to be drawn on space key,
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// its short language name will be used instead.
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private static final float MINIMUM_SCALE_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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// 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 PointerTrackerParams mPointerTrackerParams;
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private final boolean mIsSpacebarTriggeringPopupByLongPress;
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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 class KeyTimerHandler extends StaticInnerHandlerWrapper<LatinKeyboardView>
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implements TimerProxy {
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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 static final int MSG_KEY_TYPED = 4;
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private final KeyTimerParams mParams;
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private boolean mInKeyRepeat;
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public KeyTimerHandler(LatinKeyboardView outerInstance, KeyTimerParams params) {
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super(outerInstance);
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mParams = params;
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}
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@Override
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public void handleMessage(Message msg) {
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final LatinKeyboardView 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_REPEAT_KEY:
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tracker.onRepeatKey(tracker.getKey());
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startKeyRepeatTimer(tracker, mParams.mKeyRepeatInterval);
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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(PointerTracker tracker, long delay) {
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sendMessageDelayed(obtainMessage(MSG_REPEAT_KEY, tracker), delay);
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}
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@Override
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public void startKeyRepeatTimer(PointerTracker tracker) {
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mInKeyRepeat = true;
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startKeyRepeatTimer(tracker, mParams.mKeyRepeatStartTimeout);
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}
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public void cancelKeyRepeatTimer() {
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mInKeyRepeat = false;
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removeMessages(MSG_REPEAT_KEY);
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}
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public boolean isInKeyRepeat() {
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return mInKeyRepeat;
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}
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@Override
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public void startLongPressTimer(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 = mParams.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(PointerTracker tracker) {
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cancelLongPressTimer();
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if (tracker != null) {
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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 = mParams.mLongPressShiftKeyTimeout;
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break;
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case Keyboard.CODE_SPACE:
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delay = mParams.mLongPressSpaceKeyTimeout;
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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 = mParams.mLongPressKeyTimeout * 3;
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} else {
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delay = mParams.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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}
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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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@Override
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public void startKeyTypedTimer() {
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removeMessages(MSG_KEY_TYPED);
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sendMessageDelayed(obtainMessage(MSG_KEY_TYPED), mParams.mIgnoreSpecialKeyTimeout);
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}
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@Override
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public boolean isTyping() {
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return hasMessages(MSG_KEY_TYPED);
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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 static class PointerTrackerParams {
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public final boolean mSlidingKeyInputEnabled;
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public final int mTouchNoiseThresholdTime;
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public final float mTouchNoiseThresholdDistance;
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public static final PointerTrackerParams DEFAULT = new PointerTrackerParams();
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private PointerTrackerParams() {
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mSlidingKeyInputEnabled = false;
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mTouchNoiseThresholdTime =0;
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mTouchNoiseThresholdDistance = 0;
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}
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public PointerTrackerParams(TypedArray latinKeyboardViewAttr) {
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mSlidingKeyInputEnabled = latinKeyboardViewAttr.getBoolean(
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R.styleable.LatinKeyboardView_slidingKeyInputEnable, false);
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mTouchNoiseThresholdTime = latinKeyboardViewAttr.getInt(
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R.styleable.LatinKeyboardView_touchNoiseThresholdTime, 0);
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mTouchNoiseThresholdDistance = latinKeyboardViewAttr.getDimension(
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R.styleable.LatinKeyboardView_touchNoiseThresholdDistance, 0);
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}
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}
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static class KeyTimerParams {
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public final int mKeyRepeatStartTimeout;
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public final int mKeyRepeatInterval;
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public final int mLongPressKeyTimeout;
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public final int mLongPressShiftKeyTimeout;
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public final int mLongPressSpaceKeyTimeout;
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public final int mIgnoreSpecialKeyTimeout;
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KeyTimerParams() {
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mKeyRepeatStartTimeout = 0;
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mKeyRepeatInterval = 0;
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mLongPressKeyTimeout = 0;
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mLongPressShiftKeyTimeout = 0;
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mLongPressSpaceKeyTimeout = 0;
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mIgnoreSpecialKeyTimeout = 0;
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}
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public KeyTimerParams(TypedArray latinKeyboardViewAttr) {
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mKeyRepeatStartTimeout = latinKeyboardViewAttr.getInt(
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R.styleable.LatinKeyboardView_keyRepeatStartTimeout, 0);
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mKeyRepeatInterval = latinKeyboardViewAttr.getInt(
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R.styleable.LatinKeyboardView_keyRepeatInterval, 0);
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mLongPressKeyTimeout = latinKeyboardViewAttr.getInt(
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R.styleable.LatinKeyboardView_longPressKeyTimeout, 0);
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mLongPressShiftKeyTimeout = latinKeyboardViewAttr.getInt(
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R.styleable.LatinKeyboardView_longPressShiftKeyTimeout, 0);
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mLongPressSpaceKeyTimeout = latinKeyboardViewAttr.getInt(
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R.styleable.LatinKeyboardView_longPressSpaceKeyTimeout, 0);
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mIgnoreSpecialKeyTimeout = latinKeyboardViewAttr.getInt(
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R.styleable.LatinKeyboardView_ignoreSpecialKeyTimeout, 0);
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}
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}
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public LatinKeyboardView(Context context, AttributeSet attrs) {
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this(context, attrs, R.attr.latinKeyboardViewStyle);
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}
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public LatinKeyboardView(Context context, AttributeSet attrs, 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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PointerTracker.init(mHasDistinctMultitouch);
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final TypedArray a = context.obtainStyledAttributes(
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attrs, R.styleable.LatinKeyboardView, defStyle, R.style.LatinKeyboardView);
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mAutoCorrectionSpacebarLedEnabled = a.getBoolean(
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R.styleable.LatinKeyboardView_autoCorrectionSpacebarLedEnabled, false);
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mAutoCorrectionSpacebarLedIcon = a.getDrawable(
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R.styleable.LatinKeyboardView_autoCorrectionSpacebarLedIcon);
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mSpacebarTextRatio = a.getFraction(R.styleable.LatinKeyboardView_spacebarTextRatio,
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1000, 1000, 1) / 1000.0f;
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mSpacebarTextColor = a.getColor(R.styleable.LatinKeyboardView_spacebarTextColor, 0);
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mSpacebarTextShadowColor = a.getColor(
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R.styleable.LatinKeyboardView_spacebarTextShadowColor, 0);
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mDurationOfFadeoutLanguageOnSpacebar = a.getInt(
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R.styleable.LatinKeyboardView_durationOfFadeoutLanguageOnSpacebar,
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LANGUAGE_ON_SPACEBAR_NEVER_DISPLAY);
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final int delayBeforeFadeoutLanguageOnSpacebar = a.getInt(
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R.styleable.LatinKeyboardView_delayBeforeFadeoutLangageOnSpacebar, 0);
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mFinalAlphaOfLanguageOnSpacebar = a.getInt(
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R.styleable.LatinKeyboardView_finalAlphaOfLanguageOnSpacebar, 0);
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final KeyTimerParams keyTimerParams = new KeyTimerParams(a);
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mPointerTrackerParams = new PointerTrackerParams(a);
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mIsSpacebarTriggeringPopupByLongPress = (keyTimerParams.mLongPressSpaceKeyTimeout > 0);
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final float keyHysteresisDistance = a.getDimension(
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R.styleable.LatinKeyboardView_keyHysteresisDistance, 0);
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mKeyDetector = new KeyDetector(keyHysteresisDistance);
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mKeyTimerHandler = new KeyTimerHandler(this, keyTimerParams);
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mConfigShowMoreKeysKeyboardAtTouchedPoint = a.getBoolean(
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R.styleable.LatinKeyboardView_showMoreKeysKeyboardAtTouchedPoint, false);
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a.recycle();
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PointerTracker.setParameters(mPointerTrackerParams);
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mLanguageOnSpacebarAnimator = ValueAnimator.ofInt(
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ALPHA_OPAQUE, mFinalAlphaOfLanguageOnSpacebar);
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mLanguageOnSpacebarAnimator.setStartDelay(delayBeforeFadeoutLanguageOnSpacebar);
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if (mDurationOfFadeoutLanguageOnSpacebar > 0) {
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mLanguageOnSpacebarAnimator.setDuration(mDurationOfFadeoutLanguageOnSpacebar);
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}
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mLanguageOnSpacebarAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
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@Override
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public void onAnimationUpdate(ValueAnimator animation) {
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mSpacebarTextAlpha = (Integer)animation.getAnimatedValue();
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invalidateKey(mSpaceKey);
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}
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});
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}
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public void setKeyboardActionListener(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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/**
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* Attaches a keyboard to this view. The keyboard can be switched at any time and the
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* view will re-layout itself to accommodate the keyboard.
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* @see Keyboard
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* @see #getKeyboard()
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* @param keyboard the keyboard to display in this view
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*/
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@Override
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public void setKeyboard(Keyboard keyboard) {
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// Remove any pending messages, except dismissing preview
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mKeyTimerHandler.cancelKeyTimers();
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super.setKeyboard(keyboard);
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mKeyDetector.setKeyboard(
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keyboard, -getPaddingLeft(), -getPaddingTop() + mVerticalCorrection);
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mKeyDetector.setProximityThreshold(keyboard.mMostCommonKeyWidth);
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PointerTracker.setKeyDetector(mKeyDetector);
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mTouchScreenRegulator.setKeyboard(keyboard);
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mMoreKeysPanelCache.clear();
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mSpaceKey = keyboard.getKey(Keyboard.CODE_SPACE);
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mSpaceIcon = (mSpaceKey != null) ? mSpaceKey.getIcon(keyboard.mIconsSet) : null;
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final int keyHeight = keyboard.mMostCommonKeyHeight - keyboard.mVerticalGap;
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mSpacebarTextSize = keyHeight * mSpacebarTextRatio;
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mSpacebarLocale = keyboard.mId.mLocale;
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}
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/**
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* Returns whether the device has distinct multi-touch panel.
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* @return true if the device has distinct multi-touch panel.
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*/
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public boolean hasDistinctMultitouch() {
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return mHasDistinctMultitouch;
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}
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public void setDistinctMultitouch(boolean hasDistinctMultitouch) {
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mHasDistinctMultitouch = hasDistinctMultitouch;
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}
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/**
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* When enabled, calls to {@link KeyboardActionListener#onCodeInput} will include key
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* codes for adjacent keys. When disabled, only the primary key code will be
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* reported.
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* @param enabled whether or not the proximity correction is enabled
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*/
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public void setProximityCorrectionEnabled(boolean enabled) {
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mKeyDetector.setProximityCorrectionEnabled(enabled);
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}
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/**
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* Returns true if proximity correction is enabled.
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*/
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public boolean isProximityCorrectionEnabled() {
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return mKeyDetector.isProximityCorrectionEnabled();
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}
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@Override
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public void cancelAllMessages() {
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mKeyTimerHandler.cancelAllMessages();
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super.cancelAllMessages();
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}
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private boolean openMoreKeysKeyboardIfRequired(Key parentKey, PointerTracker tracker) {
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// Check if we have a popup layout specified first.
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if (mMoreKeysLayout == 0) {
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return false;
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}
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// Check if we are already displaying popup panel.
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if (mMoreKeysPanel != null)
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return false;
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if (parentKey == null)
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return false;
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return onLongPress(parentKey, tracker);
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}
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// This default implementation returns a more keys panel.
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protected MoreKeysPanel onCreateMoreKeysPanel(Key parentKey) {
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if (parentKey.mMoreKeys == null)
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return null;
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final View container = LayoutInflater.from(getContext()).inflate(mMoreKeysLayout, null);
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if (container == null)
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throw new NullPointerException();
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final MoreKeysKeyboardView moreKeysKeyboardView =
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(MoreKeysKeyboardView)container.findViewById(R.id.more_keys_keyboard_view);
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final Keyboard parentKeyboard = getKeyboard();
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final Keyboard moreKeysKeyboard = new MoreKeysKeyboard.Builder(
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this, parentKeyboard.mMoreKeysTemplate, parentKey, parentKeyboard).build();
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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(Key parentKey, PointerTracker tracker) {
|
|
final int primaryCode = parentKey.mCode;
|
|
if (parentKey.hasEmbeddedMoreKey()) {
|
|
final int embeddedCode = KeySpecParser.getCode(getResources(), parentKey.mMoreKeys[0]);
|
|
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(int code) {
|
|
return mKeyboardActionListener.onCustomRequest(code);
|
|
}
|
|
|
|
private void invokeCodeInput(int primaryCode) {
|
|
mKeyboardActionListener.onCodeInput(primaryCode,
|
|
KeyboardActionListener.NOT_A_TOUCH_COORDINATE,
|
|
KeyboardActionListener.NOT_A_TOUCH_COORDINATE);
|
|
}
|
|
|
|
private void invokeReleaseKey(int primaryCode) {
|
|
mKeyboardActionListener.onReleaseKey(primaryCode, false);
|
|
}
|
|
|
|
private boolean openMoreKeysPanel(Key parentKey, 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 Keyboard keyboard = getKeyboard();
|
|
final int pointX = (mConfigShowMoreKeysKeyboardAtTouchedPoint) ? tracker.getLastX()
|
|
: parentKey.mX + parentKey.mWidth / 2;
|
|
final int pointY = parentKey.mY - keyboard.mVerticalGap;
|
|
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 onTouchEvent(MotionEvent me) {
|
|
if (getKeyboard() == null) {
|
|
return false;
|
|
}
|
|
return mTouchScreenRegulator.onTouchEvent(me);
|
|
}
|
|
|
|
@Override
|
|
public boolean processMotionEvent(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)) {
|
|
UsabilityStudyLogUtils.getInstance().write(
|
|
eventTag + eventTime + "," + id + "," + x + "," + y + ","
|
|
+ me.getSize(index) + "," + me.getPressure(index));
|
|
}
|
|
}
|
|
|
|
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 PointerTracker tracker = PointerTracker.getPointerTracker(
|
|
me.getPointerId(i), this);
|
|
final int px, py;
|
|
if (mMoreKeysPanel != null
|
|
&& tracker.mPointerId == mMoreKeysPanelPointerTrackerId) {
|
|
px = mMoreKeysPanel.translateX((int)me.getX(i));
|
|
py = mMoreKeysPanel.translateY((int)me.getY(i));
|
|
} else {
|
|
px = (int)me.getX(i);
|
|
py = (int)me.getY(i);
|
|
}
|
|
tracker.onMoveEvent(px, py, eventTime);
|
|
if (ENABLE_USABILITY_STUDY_LOG) {
|
|
UsabilityStudyLogUtils.getInstance().write("[Move]" + eventTime + ","
|
|
+ me.getPointerId(i) + "," + px + "," + py + ","
|
|
+ me.getSize(i) + "," + me.getPressure(i));
|
|
}
|
|
}
|
|
} 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;
|
|
}
|
|
|
|
public boolean handleBack() {
|
|
return dismissMoreKeysPanel();
|
|
}
|
|
|
|
@Override
|
|
public void draw(Canvas c) {
|
|
Utils.GCUtils.getInstance().reset();
|
|
boolean tryGC = true;
|
|
for (int i = 0; i < Utils.GCUtils.GC_TRY_LOOP_MAX && tryGC; ++i) {
|
|
try {
|
|
super.draw(c);
|
|
tryGC = false;
|
|
} catch (OutOfMemoryError e) {
|
|
tryGC = Utils.GCUtils.getInstance().tryGCOrWait(TAG, e);
|
|
}
|
|
}
|
|
}
|
|
|
|
@Override
|
|
protected void onAttachedToWindow() {
|
|
// Token is available from here.
|
|
VoiceProxy.getInstance().onAttachedToWindow();
|
|
}
|
|
|
|
/**
|
|
* Receives hover events from the input framework. This method overrides
|
|
* View.dispatchHoverEvent(MotionEvent) on SDK version ICS or higher. On
|
|
* lower SDK versions, this method is never called.
|
|
*
|
|
* @param event The motion event to be dispatched.
|
|
* @return {@code true} if the event was handled by the view, {@code false}
|
|
* otherwise
|
|
*/
|
|
//Should not annotate @override
|
|
public boolean dispatchHoverEvent(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(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);
|
|
}
|
|
|
|
public void startDisplayLanguageOnSpacebar(boolean subtypeChanged,
|
|
boolean needsToDisplayLanguage) {
|
|
mLanguageOnSpacebarAnimator.cancel();
|
|
mNeedsToDisplayLanguage = needsToDisplayLanguage;
|
|
if (mDurationOfFadeoutLanguageOnSpacebar == LANGUAGE_ON_SPACEBAR_NEVER_DISPLAY) {
|
|
mNeedsToDisplayLanguage = false;
|
|
} else if (mDurationOfFadeoutLanguageOnSpacebar == LANGUAGE_ON_SPACEBAR_ALWAYS_DISPLAY) {
|
|
mSpacebarTextAlpha = ALPHA_OPAQUE;
|
|
} else {
|
|
if (subtypeChanged && needsToDisplayLanguage) {
|
|
mSpacebarTextAlpha = ALPHA_OPAQUE;
|
|
mLanguageOnSpacebarAnimator.start();
|
|
} else {
|
|
mSpacebarTextAlpha = mFinalAlphaOfLanguageOnSpacebar;
|
|
}
|
|
}
|
|
invalidateKey(mSpaceKey);
|
|
}
|
|
|
|
public void updateAutoCorrectionState(boolean isAutoCorrection) {
|
|
if (!mAutoCorrectionSpacebarLedEnabled) return;
|
|
mAutoCorrectionSpacebarLedOn = isAutoCorrection;
|
|
invalidateKey(mSpaceKey);
|
|
}
|
|
|
|
@Override
|
|
protected void onDrawKeyTopVisuals(Key key, Canvas canvas, Paint paint, KeyDrawParams params) {
|
|
if (key.mCode == Keyboard.CODE_SPACE) {
|
|
drawSpacebar(key, canvas, paint);
|
|
|
|
// Whether space key needs to show the "..." popup hint for special purposes
|
|
if (mIsSpacebarTriggeringPopupByLongPress
|
|
&& SubtypeUtils.hasMultipleEnabledIMEsOrSubtypes(
|
|
true /* include aux subtypes */)) {
|
|
drawKeyPopupHint(key, canvas, paint, params);
|
|
}
|
|
} else if (key.mCode == Keyboard.CODE_LANGUAGE_SWITCH) {
|
|
super.onDrawKeyTopVisuals(key, canvas, paint, params);
|
|
if (SubtypeUtils.hasMultipleEnabledIMEsOrSubtypes(true /* include aux subtypes */)) {
|
|
drawKeyPopupHint(key, canvas, paint, params);
|
|
}
|
|
} else {
|
|
super.onDrawKeyTopVisuals(key, canvas, paint, params);
|
|
}
|
|
}
|
|
|
|
// Compute width of text with specified text size using paint.
|
|
private int getTextWidth(Paint paint, String text, float textSize) {
|
|
paint.setTextSize(textSize);
|
|
return (int)getLabelWidth(text, paint);
|
|
}
|
|
|
|
// Layout locale language name on spacebar.
|
|
private String layoutLanguageOnSpacebar(Paint paint, Locale locale, int width,
|
|
float origTextSize) {
|
|
paint.setTextAlign(Align.CENTER);
|
|
paint.setTypeface(Typeface.DEFAULT);
|
|
// Estimate appropriate language name text size to fit in maxTextWidth.
|
|
String language = StringUtils.getFullDisplayName(locale, true);
|
|
int textWidth = getTextWidth(paint, language, origTextSize);
|
|
// Assuming text width and text size are proportional to each other.
|
|
float textSize = origTextSize * Math.min(width / textWidth, 1.0f);
|
|
// allow variable text size
|
|
textWidth = getTextWidth(paint, language, textSize);
|
|
// If text size goes too small or text does not fit, use middle or short name
|
|
final boolean useMiddleName = (textSize / origTextSize < MINIMUM_SCALE_OF_LANGUAGE_NAME)
|
|
|| (textWidth > width);
|
|
|
|
final boolean useShortName;
|
|
if (useMiddleName) {
|
|
language = StringUtils.getMiddleDisplayLanguage(locale);
|
|
textWidth = getTextWidth(paint, language, origTextSize);
|
|
textSize = origTextSize * Math.min(width / textWidth, 1.0f);
|
|
useShortName = (textSize / origTextSize < MINIMUM_SCALE_OF_LANGUAGE_NAME)
|
|
|| (textWidth > width);
|
|
} else {
|
|
useShortName = false;
|
|
}
|
|
|
|
if (useShortName) {
|
|
language = StringUtils.getShortDisplayLanguage(locale);
|
|
textWidth = getTextWidth(paint, language, origTextSize);
|
|
textSize = origTextSize * Math.min(width / textWidth, 1.0f);
|
|
}
|
|
paint.setTextSize(textSize);
|
|
|
|
return language;
|
|
}
|
|
|
|
private void drawSpacebar(Key key, Canvas canvas, Paint paint) {
|
|
final int width = key.mWidth;
|
|
final int height = key.mHeight;
|
|
|
|
// If input subtypes are explicitly selected.
|
|
if (mNeedsToDisplayLanguage) {
|
|
final String language = layoutLanguageOnSpacebar(paint, mSpacebarLocale, width,
|
|
mSpacebarTextSize);
|
|
// Draw language text with shadow
|
|
// In case there is no space icon, we will place the language text at the center of
|
|
// spacebar.
|
|
final float descent = paint.descent();
|
|
final float textHeight = -paint.ascent() + descent;
|
|
final float baseline = height / 2 + textHeight / 2;
|
|
paint.setColor(mSpacebarTextShadowColor);
|
|
paint.setAlpha(mSpacebarTextAlpha);
|
|
canvas.drawText(language, width / 2, baseline - descent - 1, paint);
|
|
paint.setColor(mSpacebarTextColor);
|
|
paint.setAlpha(mSpacebarTextAlpha);
|
|
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);
|
|
}
|
|
}
|
|
}
|