885 lines
38 KiB
Java
885 lines
38 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"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package com.android.inputmethod.latin.suggestions;
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import android.content.Context;
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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.Bitmap;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.graphics.Paint.Align;
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import android.graphics.Rect;
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import android.graphics.Typeface;
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import android.graphics.drawable.BitmapDrawable;
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import android.graphics.drawable.ColorDrawable;
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import android.graphics.drawable.Drawable;
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import android.os.Message;
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import android.text.Spannable;
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import android.text.SpannableString;
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import android.text.Spanned;
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import android.text.TextPaint;
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import android.text.TextUtils;
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import android.text.style.CharacterStyle;
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import android.text.style.StyleSpan;
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import android.text.style.UnderlineSpan;
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import android.util.AttributeSet;
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import android.view.GestureDetector;
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import android.view.Gravity;
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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.View.OnClickListener;
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import android.view.View.OnLongClickListener;
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import android.view.ViewGroup;
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import android.widget.LinearLayout;
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import android.widget.PopupWindow;
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import android.widget.RelativeLayout;
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import android.widget.TextView;
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import com.android.inputmethod.keyboard.Keyboard;
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import com.android.inputmethod.keyboard.KeyboardActionListener;
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import com.android.inputmethod.keyboard.KeyboardSwitcher;
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import com.android.inputmethod.keyboard.KeyboardView;
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import com.android.inputmethod.keyboard.MoreKeysPanel;
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import com.android.inputmethod.keyboard.PointerTracker;
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import com.android.inputmethod.keyboard.ViewLayoutUtils;
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import com.android.inputmethod.latin.AutoCorrection;
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import com.android.inputmethod.latin.CollectionUtils;
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import com.android.inputmethod.latin.Constants;
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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.SuggestedWords;
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import com.android.inputmethod.latin.Utils;
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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.ArrayList;
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public final class SuggestionStripView extends RelativeLayout implements OnClickListener,
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OnLongClickListener {
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public interface Listener {
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public boolean addWordToUserDictionary(String word);
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public void pickSuggestionManually(int index, CharSequence word);
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}
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// The maximum number of suggestions available. See {@link Suggest#mPrefMaxSuggestions}.
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public static final int MAX_SUGGESTIONS = 18;
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static final boolean DBG = LatinImeLogger.sDBG;
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private final ViewGroup mSuggestionsStrip;
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KeyboardView mKeyboardView;
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private final View mMoreSuggestionsContainer;
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private final MoreSuggestionsView mMoreSuggestionsView;
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private final MoreSuggestions.Builder mMoreSuggestionsBuilder;
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private final PopupWindow mMoreSuggestionsWindow;
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private final ArrayList<TextView> mWords = CollectionUtils.newArrayList();
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private final ArrayList<TextView> mInfos = CollectionUtils.newArrayList();
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private final ArrayList<View> mDividers = CollectionUtils.newArrayList();
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private final PopupWindow mPreviewPopup;
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private final TextView mPreviewText;
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Listener mListener;
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SuggestedWords mSuggestedWords = SuggestedWords.EMPTY;
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private final SuggestionStripViewParams mParams;
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private static final float MIN_TEXT_XSCALE = 0.70f;
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private final UiHandler mHandler = new UiHandler(this);
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private static final class UiHandler extends StaticInnerHandlerWrapper<SuggestionStripView> {
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private static final int MSG_HIDE_PREVIEW = 0;
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public UiHandler(final SuggestionStripView outerInstance) {
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super(outerInstance);
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}
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@Override
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public void dispatchMessage(final Message msg) {
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final SuggestionStripView suggestionStripView = getOuterInstance();
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switch (msg.what) {
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case MSG_HIDE_PREVIEW:
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suggestionStripView.hidePreview();
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break;
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}
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}
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public void cancelHidePreview() {
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removeMessages(MSG_HIDE_PREVIEW);
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}
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public void cancelAllMessages() {
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cancelHidePreview();
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}
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}
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private static final class SuggestionStripViewParams {
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private static final int DEFAULT_SUGGESTIONS_COUNT_IN_STRIP = 3;
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private static final float DEFAULT_CENTER_SUGGESTION_PERCENTILE = 0.40f;
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private static final int DEFAULT_MAX_MORE_SUGGESTIONS_ROW = 2;
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private static final int PUNCTUATIONS_IN_STRIP = 5;
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public final int mPadding;
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public final int mDividerWidth;
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public final int mSuggestionsStripHeight;
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public final int mSuggestionsCountInStrip;
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public final int mMoreSuggestionsRowHeight;
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private int mMaxMoreSuggestionsRow;
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public final float mMinMoreSuggestionsWidth;
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public final int mMoreSuggestionsBottomGap;
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private final ArrayList<TextView> mWords;
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private final ArrayList<View> mDividers;
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private final ArrayList<TextView> mInfos;
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private final int mColorValidTypedWord;
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private final int mColorTypedWord;
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private final int mColorAutoCorrect;
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private final int mColorSuggested;
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private final float mAlphaObsoleted;
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private final float mCenterSuggestionWeight;
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private final int mCenterSuggestionIndex;
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private final Drawable mMoreSuggestionsHint;
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private static final String MORE_SUGGESTIONS_HINT = "\u2026";
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private static final String LEFTWARDS_ARROW = "\u2190";
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private static final CharacterStyle BOLD_SPAN = new StyleSpan(Typeface.BOLD);
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private static final CharacterStyle UNDERLINE_SPAN = new UnderlineSpan();
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private static final int AUTO_CORRECT_BOLD = 0x01;
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private static final int AUTO_CORRECT_UNDERLINE = 0x02;
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private static final int VALID_TYPED_WORD_BOLD = 0x04;
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private final int mSuggestionStripOption;
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private final ArrayList<CharSequence> mTexts = CollectionUtils.newArrayList();
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public boolean mMoreSuggestionsAvailable;
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private final TextView mWordToSaveView;
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private final TextView mLeftwardsArrowView;
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private final TextView mHintToSaveView;
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public SuggestionStripViewParams(final Context context, final AttributeSet attrs,
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final int defStyle, final ArrayList<TextView> words, final ArrayList<View> dividers,
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final ArrayList<TextView> infos) {
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mWords = words;
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mDividers = dividers;
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mInfos = infos;
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final TextView word = words.get(0);
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final View divider = dividers.get(0);
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mPadding = word.getCompoundPaddingLeft() + word.getCompoundPaddingRight();
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divider.measure(
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ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
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mDividerWidth = divider.getMeasuredWidth();
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final Resources res = word.getResources();
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mSuggestionsStripHeight = res.getDimensionPixelSize(R.dimen.suggestions_strip_height);
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final TypedArray a = context.obtainStyledAttributes(attrs,
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R.styleable.SuggestionStripView, defStyle, R.style.SuggestionStripViewStyle);
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mSuggestionStripOption = a.getInt(
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R.styleable.SuggestionStripView_suggestionStripOption, 0);
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final float alphaValidTypedWord = ResourceUtils.getFraction(a,
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R.styleable.SuggestionStripView_alphaValidTypedWord, 1.0f);
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final float alphaTypedWord = ResourceUtils.getFraction(a,
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R.styleable.SuggestionStripView_alphaTypedWord, 1.0f);
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final float alphaAutoCorrect = ResourceUtils.getFraction(a,
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R.styleable.SuggestionStripView_alphaAutoCorrect, 1.0f);
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final float alphaSuggested = ResourceUtils.getFraction(a,
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R.styleable.SuggestionStripView_alphaSuggested, 1.0f);
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mAlphaObsoleted = ResourceUtils.getFraction(a,
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R.styleable.SuggestionStripView_alphaSuggested, 1.0f);
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mColorValidTypedWord = applyAlpha(a.getColor(
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R.styleable.SuggestionStripView_colorValidTypedWord, 0), alphaValidTypedWord);
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mColorTypedWord = applyAlpha(a.getColor(
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R.styleable.SuggestionStripView_colorTypedWord, 0), alphaTypedWord);
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mColorAutoCorrect = applyAlpha(a.getColor(
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R.styleable.SuggestionStripView_colorAutoCorrect, 0), alphaAutoCorrect);
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mColorSuggested = applyAlpha(a.getColor(
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R.styleable.SuggestionStripView_colorSuggested, 0), alphaSuggested);
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mSuggestionsCountInStrip = a.getInt(
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R.styleable.SuggestionStripView_suggestionsCountInStrip,
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DEFAULT_SUGGESTIONS_COUNT_IN_STRIP);
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mCenterSuggestionWeight = ResourceUtils.getFraction(a,
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R.styleable.SuggestionStripView_centerSuggestionPercentile,
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DEFAULT_CENTER_SUGGESTION_PERCENTILE);
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mMaxMoreSuggestionsRow = a.getInt(
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R.styleable.SuggestionStripView_maxMoreSuggestionsRow,
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DEFAULT_MAX_MORE_SUGGESTIONS_ROW);
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mMinMoreSuggestionsWidth = ResourceUtils.getFraction(a,
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R.styleable.SuggestionStripView_minMoreSuggestionsWidth, 1.0f);
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a.recycle();
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mMoreSuggestionsHint = getMoreSuggestionsHint(res,
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res.getDimension(R.dimen.more_suggestions_hint_text_size), mColorAutoCorrect);
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mCenterSuggestionIndex = mSuggestionsCountInStrip / 2;
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mMoreSuggestionsBottomGap = res.getDimensionPixelOffset(
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R.dimen.more_suggestions_bottom_gap);
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mMoreSuggestionsRowHeight = res.getDimensionPixelSize(
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R.dimen.more_suggestions_row_height);
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final LayoutInflater inflater = LayoutInflater.from(context);
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mWordToSaveView = (TextView)inflater.inflate(R.layout.suggestion_word, null);
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mLeftwardsArrowView = (TextView)inflater.inflate(R.layout.hint_add_to_dictionary, null);
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mHintToSaveView = (TextView)inflater.inflate(R.layout.hint_add_to_dictionary, null);
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}
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public int getMaxMoreSuggestionsRow() {
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return mMaxMoreSuggestionsRow;
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}
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private int getMoreSuggestionsHeight() {
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return mMaxMoreSuggestionsRow * mMoreSuggestionsRowHeight + mMoreSuggestionsBottomGap;
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}
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public int setMoreSuggestionsHeight(final int remainingHeight) {
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final int currentHeight = getMoreSuggestionsHeight();
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if (currentHeight <= remainingHeight) {
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return currentHeight;
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}
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mMaxMoreSuggestionsRow = (remainingHeight - mMoreSuggestionsBottomGap)
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/ mMoreSuggestionsRowHeight;
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final int newHeight = getMoreSuggestionsHeight();
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return newHeight;
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}
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private static Drawable getMoreSuggestionsHint(final Resources res, final float textSize,
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final int color) {
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final Paint paint = new Paint();
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paint.setAntiAlias(true);
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paint.setTextAlign(Align.CENTER);
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paint.setTextSize(textSize);
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paint.setColor(color);
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final Rect bounds = new Rect();
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paint.getTextBounds(MORE_SUGGESTIONS_HINT, 0, MORE_SUGGESTIONS_HINT.length(), bounds);
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final int width = Math.round(bounds.width() + 0.5f);
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final int height = Math.round(bounds.height() + 0.5f);
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final Bitmap buffer = Bitmap.createBitmap(
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width, (height * 3 / 2), Bitmap.Config.ARGB_8888);
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final Canvas canvas = new Canvas(buffer);
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canvas.drawText(MORE_SUGGESTIONS_HINT, width / 2, height, paint);
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return new BitmapDrawable(res, buffer);
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}
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private CharSequence getStyledSuggestionWord(final SuggestedWords suggestedWords,
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final int pos) {
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final CharSequence word = suggestedWords.getWord(pos);
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final boolean isAutoCorrect = pos == 1 && suggestedWords.willAutoCorrect();
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final boolean isTypedWordValid = pos == 0 && suggestedWords.mTypedWordValid;
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if (!isAutoCorrect && !isTypedWordValid)
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return word;
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final int len = word.length();
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final Spannable spannedWord = new SpannableString(word);
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final int option = mSuggestionStripOption;
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if ((isAutoCorrect && (option & AUTO_CORRECT_BOLD) != 0)
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|| (isTypedWordValid && (option & VALID_TYPED_WORD_BOLD) != 0)) {
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spannedWord.setSpan(BOLD_SPAN, 0, len, Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
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}
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if (isAutoCorrect && (option & AUTO_CORRECT_UNDERLINE) != 0) {
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spannedWord.setSpan(UNDERLINE_SPAN, 0, len, Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
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}
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return spannedWord;
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}
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private int getWordPosition(final int index, final SuggestedWords suggestedWords) {
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// TODO: This works for 3 suggestions. Revisit this algorithm when there are 5 or more
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// suggestions.
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final int centerPos = suggestedWords.willAutoCorrect() ? 1 : 0;
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if (index == mCenterSuggestionIndex) {
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return centerPos;
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} else if (index == centerPos) {
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return mCenterSuggestionIndex;
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} else {
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return index;
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}
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}
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private int getSuggestionTextColor(final int index, final SuggestedWords suggestedWords,
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final int pos) {
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// TODO: Need to revisit this logic with bigram suggestions
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final boolean isSuggested = (pos != 0);
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final int color;
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if (index == mCenterSuggestionIndex && suggestedWords.willAutoCorrect()) {
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color = mColorAutoCorrect;
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} else if (index == mCenterSuggestionIndex && suggestedWords.mTypedWordValid) {
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color = mColorValidTypedWord;
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} else if (isSuggested) {
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color = mColorSuggested;
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} else {
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color = mColorTypedWord;
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}
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if (LatinImeLogger.sDBG && suggestedWords.size() > 1) {
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// If we auto-correct, then the autocorrection is in slot 0 and the typed word
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// is in slot 1.
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if (index == mCenterSuggestionIndex
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&& AutoCorrection.shouldBlockAutoCorrectionBySafetyNet(
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suggestedWords.getWord(1).toString(), suggestedWords.getWord(0))) {
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return 0xFFFF0000;
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}
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}
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if (suggestedWords.mIsObsoleteSuggestions && isSuggested) {
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return applyAlpha(color, mAlphaObsoleted);
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} else {
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return color;
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}
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}
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private static int applyAlpha(final int color, final float alpha) {
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final int newAlpha = (int)(Color.alpha(color) * alpha);
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return Color.argb(newAlpha, Color.red(color), Color.green(color), Color.blue(color));
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}
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private static void addDivider(final ViewGroup stripView, final View divider) {
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stripView.addView(divider);
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final LinearLayout.LayoutParams params =
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(LinearLayout.LayoutParams)divider.getLayoutParams();
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params.gravity = Gravity.CENTER;
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}
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public void layout(final SuggestedWords suggestedWords, final ViewGroup stripView,
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final ViewGroup placer, final int stripWidth) {
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if (suggestedWords.mIsPunctuationSuggestions) {
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layoutPunctuationSuggestions(suggestedWords, stripView);
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return;
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}
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final int countInStrip = mSuggestionsCountInStrip;
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setupTexts(suggestedWords, countInStrip);
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mMoreSuggestionsAvailable = (suggestedWords.size() > countInStrip);
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int x = 0;
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for (int index = 0; index < countInStrip; index++) {
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final int pos = getWordPosition(index, suggestedWords);
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if (index != 0) {
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final View divider = mDividers.get(pos);
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// Add divider if this isn't the left most suggestion in suggestions strip.
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addDivider(stripView, divider);
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x += divider.getMeasuredWidth();
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}
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final CharSequence styled = mTexts.get(pos);
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final TextView word = mWords.get(pos);
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if (index == mCenterSuggestionIndex && mMoreSuggestionsAvailable) {
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// TODO: This "more suggestions hint" should have nicely designed icon.
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word.setCompoundDrawablesWithIntrinsicBounds(
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null, null, null, mMoreSuggestionsHint);
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// HACK: To align with other TextView that has no compound drawables.
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word.setCompoundDrawablePadding(-mMoreSuggestionsHint.getIntrinsicHeight());
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} else {
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word.setCompoundDrawablesWithIntrinsicBounds(null, null, null, null);
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}
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// Disable this suggestion if the suggestion is null or empty.
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word.setEnabled(!TextUtils.isEmpty(styled));
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word.setTextColor(getSuggestionTextColor(index, suggestedWords, pos));
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final int width = getSuggestionWidth(index, stripWidth);
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final CharSequence text = getEllipsizedText(styled, width, word.getPaint());
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final float scaleX = word.getTextScaleX();
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word.setText(text); // TextView.setText() resets text scale x to 1.0.
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word.setTextScaleX(scaleX);
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stripView.addView(word);
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setLayoutWeight(
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word, getSuggestionWeight(index), ViewGroup.LayoutParams.MATCH_PARENT);
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x += word.getMeasuredWidth();
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if (DBG && pos < suggestedWords.size()) {
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final CharSequence debugInfo = Utils.getDebugInfo(suggestedWords, pos);
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if (debugInfo != null) {
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final TextView info = mInfos.get(pos);
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info.setText(debugInfo);
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placer.addView(info);
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info.measure(ViewGroup.LayoutParams.WRAP_CONTENT,
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ViewGroup.LayoutParams.WRAP_CONTENT);
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final int infoWidth = info.getMeasuredWidth();
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final int y = info.getMeasuredHeight();
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ViewLayoutUtils.placeViewAt(
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info, x - infoWidth, y, infoWidth, info.getMeasuredHeight());
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}
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}
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}
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}
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private int getSuggestionWidth(final int index, final int maxWidth) {
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final int paddings = mPadding * mSuggestionsCountInStrip;
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final int dividers = mDividerWidth * (mSuggestionsCountInStrip - 1);
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final int availableWidth = maxWidth - paddings - dividers;
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return (int)(availableWidth * getSuggestionWeight(index));
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}
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private float getSuggestionWeight(final int index) {
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if (index == mCenterSuggestionIndex) {
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return mCenterSuggestionWeight;
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} else {
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// TODO: Revisit this for cases of 5 or more suggestions
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return (1.0f - mCenterSuggestionWeight) / (mSuggestionsCountInStrip - 1);
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}
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}
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private void setupTexts(final SuggestedWords suggestedWords, final int countInStrip) {
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mTexts.clear();
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final int count = Math.min(suggestedWords.size(), countInStrip);
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for (int pos = 0; pos < count; pos++) {
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final CharSequence styled = getStyledSuggestionWord(suggestedWords, pos);
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mTexts.add(styled);
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}
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for (int pos = count; pos < countInStrip; pos++) {
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// Make this inactive for touches in layout().
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mTexts.add(null);
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}
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}
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|
|
private void layoutPunctuationSuggestions(final SuggestedWords suggestedWords,
|
|
final ViewGroup stripView) {
|
|
final int countInStrip = Math.min(suggestedWords.size(), PUNCTUATIONS_IN_STRIP);
|
|
for (int index = 0; index < countInStrip; index++) {
|
|
if (index != 0) {
|
|
// Add divider if this isn't the left most suggestion in suggestions strip.
|
|
addDivider(stripView, mDividers.get(index));
|
|
}
|
|
|
|
final TextView word = mWords.get(index);
|
|
word.setEnabled(true);
|
|
word.setTextColor(mColorAutoCorrect);
|
|
final CharSequence text = suggestedWords.getWord(index);
|
|
word.setText(text);
|
|
word.setTextScaleX(1.0f);
|
|
word.setCompoundDrawables(null, null, null, null);
|
|
stripView.addView(word);
|
|
setLayoutWeight(word, 1.0f, mSuggestionsStripHeight);
|
|
}
|
|
mMoreSuggestionsAvailable = false;
|
|
}
|
|
|
|
public void layoutAddToDictionaryHint(final CharSequence word, final ViewGroup stripView,
|
|
final int stripWidth, final CharSequence hintText, final OnClickListener listener) {
|
|
final int width = stripWidth - mDividerWidth - mPadding * 2;
|
|
|
|
final TextView wordView = mWordToSaveView;
|
|
wordView.setTextColor(mColorTypedWord);
|
|
final int wordWidth = (int)(width * mCenterSuggestionWeight);
|
|
final CharSequence text = getEllipsizedText(word, wordWidth, wordView.getPaint());
|
|
final float wordScaleX = wordView.getTextScaleX();
|
|
wordView.setTag(word);
|
|
wordView.setText(text);
|
|
wordView.setTextScaleX(wordScaleX);
|
|
stripView.addView(wordView);
|
|
setLayoutWeight(wordView, mCenterSuggestionWeight, ViewGroup.LayoutParams.MATCH_PARENT);
|
|
|
|
stripView.addView(mDividers.get(0));
|
|
|
|
final TextView leftArrowView = mLeftwardsArrowView;
|
|
leftArrowView.setTextColor(mColorAutoCorrect);
|
|
leftArrowView.setText(LEFTWARDS_ARROW);
|
|
stripView.addView(leftArrowView);
|
|
|
|
final TextView hintView = mHintToSaveView;
|
|
hintView.setGravity(Gravity.LEFT | Gravity.CENTER_VERTICAL);
|
|
hintView.setTextColor(mColorAutoCorrect);
|
|
final int hintWidth = width - wordWidth - leftArrowView.getWidth();
|
|
final float hintScaleX = getTextScaleX(hintText, hintWidth, hintView.getPaint());
|
|
hintView.setText(hintText);
|
|
hintView.setTextScaleX(hintScaleX);
|
|
stripView.addView(hintView);
|
|
setLayoutWeight(
|
|
hintView, 1.0f - mCenterSuggestionWeight, ViewGroup.LayoutParams.MATCH_PARENT);
|
|
|
|
wordView.setOnClickListener(listener);
|
|
leftArrowView.setOnClickListener(listener);
|
|
hintView.setOnClickListener(listener);
|
|
}
|
|
|
|
public CharSequence getAddToDictionaryWord() {
|
|
return (CharSequence)mWordToSaveView.getTag();
|
|
}
|
|
|
|
public boolean isAddToDictionaryShowing(final View v) {
|
|
return v == mWordToSaveView || v == mHintToSaveView || v == mLeftwardsArrowView;
|
|
}
|
|
|
|
private static void setLayoutWeight(final View v, final float weight, final int height) {
|
|
final ViewGroup.LayoutParams lp = v.getLayoutParams();
|
|
if (lp instanceof LinearLayout.LayoutParams) {
|
|
final LinearLayout.LayoutParams llp = (LinearLayout.LayoutParams)lp;
|
|
llp.weight = weight;
|
|
llp.width = 0;
|
|
llp.height = height;
|
|
}
|
|
}
|
|
|
|
private static float getTextScaleX(final CharSequence text, final int maxWidth,
|
|
final TextPaint paint) {
|
|
paint.setTextScaleX(1.0f);
|
|
final int width = getTextWidth(text, paint);
|
|
if (width <= maxWidth) {
|
|
return 1.0f;
|
|
}
|
|
return maxWidth / (float)width;
|
|
}
|
|
|
|
private static CharSequence getEllipsizedText(final CharSequence text, final int maxWidth,
|
|
final TextPaint paint) {
|
|
if (text == null) return null;
|
|
paint.setTextScaleX(1.0f);
|
|
final int width = getTextWidth(text, paint);
|
|
if (width <= maxWidth) {
|
|
return text;
|
|
}
|
|
final float scaleX = maxWidth / (float)width;
|
|
if (scaleX >= MIN_TEXT_XSCALE) {
|
|
paint.setTextScaleX(scaleX);
|
|
return text;
|
|
}
|
|
|
|
// Note that TextUtils.ellipsize() use text-x-scale as 1.0 if ellipsize is needed. To
|
|
// get squeezed and ellipsized text, passes enlarged width (maxWidth / MIN_TEXT_XSCALE).
|
|
final CharSequence ellipsized = TextUtils.ellipsize(
|
|
text, paint, maxWidth / MIN_TEXT_XSCALE, TextUtils.TruncateAt.MIDDLE);
|
|
paint.setTextScaleX(MIN_TEXT_XSCALE);
|
|
return ellipsized;
|
|
}
|
|
|
|
private static int getTextWidth(final CharSequence text, final TextPaint paint) {
|
|
if (TextUtils.isEmpty(text)) return 0;
|
|
final Typeface savedTypeface = paint.getTypeface();
|
|
paint.setTypeface(getTextTypeface(text));
|
|
final int len = text.length();
|
|
final float[] widths = new float[len];
|
|
final int count = paint.getTextWidths(text, 0, len, widths);
|
|
int width = 0;
|
|
for (int i = 0; i < count; i++) {
|
|
width += Math.round(widths[i] + 0.5f);
|
|
}
|
|
paint.setTypeface(savedTypeface);
|
|
return width;
|
|
}
|
|
|
|
private static Typeface getTextTypeface(final CharSequence text) {
|
|
if (!(text instanceof SpannableString))
|
|
return Typeface.DEFAULT;
|
|
|
|
final SpannableString ss = (SpannableString)text;
|
|
final StyleSpan[] styles = ss.getSpans(0, text.length(), StyleSpan.class);
|
|
if (styles.length == 0)
|
|
return Typeface.DEFAULT;
|
|
|
|
switch (styles[0].getStyle()) {
|
|
case Typeface.BOLD: return Typeface.DEFAULT_BOLD;
|
|
// TODO: BOLD_ITALIC, ITALIC case?
|
|
default: return Typeface.DEFAULT;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Construct a {@link SuggestionStripView} for showing suggestions to be picked by the user.
|
|
* @param context
|
|
* @param attrs
|
|
*/
|
|
public SuggestionStripView(final Context context, final AttributeSet attrs) {
|
|
this(context, attrs, R.attr.suggestionStripViewStyle);
|
|
}
|
|
|
|
public SuggestionStripView(final Context context, final AttributeSet attrs,
|
|
final int defStyle) {
|
|
super(context, attrs, defStyle);
|
|
|
|
final LayoutInflater inflater = LayoutInflater.from(context);
|
|
inflater.inflate(R.layout.suggestions_strip, this);
|
|
|
|
mPreviewPopup = new PopupWindow(context);
|
|
mPreviewText = (TextView) inflater.inflate(R.layout.suggestion_preview, null);
|
|
mPreviewPopup.setWindowLayoutMode(
|
|
ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
|
|
mPreviewPopup.setContentView(mPreviewText);
|
|
mPreviewPopup.setBackgroundDrawable(null);
|
|
|
|
mSuggestionsStrip = (ViewGroup)findViewById(R.id.suggestions_strip);
|
|
for (int pos = 0; pos < MAX_SUGGESTIONS; pos++) {
|
|
final TextView word = (TextView)inflater.inflate(R.layout.suggestion_word, null);
|
|
word.setTag(pos);
|
|
word.setOnClickListener(this);
|
|
word.setOnLongClickListener(this);
|
|
mWords.add(word);
|
|
final View divider = inflater.inflate(R.layout.suggestion_divider, null);
|
|
divider.setTag(pos);
|
|
divider.setOnClickListener(this);
|
|
mDividers.add(divider);
|
|
mInfos.add((TextView)inflater.inflate(R.layout.suggestion_info, null));
|
|
}
|
|
|
|
mParams = new SuggestionStripViewParams(
|
|
context, attrs, defStyle, mWords, mDividers, mInfos);
|
|
|
|
mMoreSuggestionsContainer = inflater.inflate(R.layout.more_suggestions, null);
|
|
mMoreSuggestionsView = (MoreSuggestionsView)mMoreSuggestionsContainer
|
|
.findViewById(R.id.more_suggestions_view);
|
|
mMoreSuggestionsBuilder = new MoreSuggestions.Builder(mMoreSuggestionsView);
|
|
|
|
final PopupWindow moreWindow = new PopupWindow(context);
|
|
moreWindow.setWindowLayoutMode(
|
|
ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
|
|
moreWindow.setBackgroundDrawable(new ColorDrawable(android.R.color.transparent));
|
|
moreWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED);
|
|
moreWindow.setFocusable(true);
|
|
moreWindow.setOutsideTouchable(true);
|
|
moreWindow.setOnDismissListener(new PopupWindow.OnDismissListener() {
|
|
@Override
|
|
public void onDismiss() {
|
|
mKeyboardView.dimEntireKeyboard(false);
|
|
}
|
|
});
|
|
mMoreSuggestionsWindow = moreWindow;
|
|
|
|
final Resources res = context.getResources();
|
|
mMoreSuggestionsModalTolerance = res.getDimensionPixelOffset(
|
|
R.dimen.more_suggestions_modal_tolerance);
|
|
mMoreSuggestionsSlidingDetector = new GestureDetector(
|
|
context, mMoreSuggestionsSlidingListener);
|
|
}
|
|
|
|
/**
|
|
* A connection back to the input method.
|
|
* @param listener
|
|
*/
|
|
public void setListener(final Listener listener, final View inputView) {
|
|
mListener = listener;
|
|
mKeyboardView = (KeyboardView)inputView.findViewById(R.id.keyboard_view);
|
|
}
|
|
|
|
public void setSuggestions(final SuggestedWords suggestedWords) {
|
|
clear();
|
|
mSuggestedWords = suggestedWords;
|
|
mParams.layout(mSuggestedWords, mSuggestionsStrip, this, getWidth());
|
|
if (ProductionFlag.IS_EXPERIMENTAL) {
|
|
ResearchLogger.suggestionStripView_setSuggestions(mSuggestedWords);
|
|
}
|
|
}
|
|
|
|
public int setMoreSuggestionsHeight(final int remainingHeight) {
|
|
return mParams.setMoreSuggestionsHeight(remainingHeight);
|
|
}
|
|
|
|
public boolean isShowingAddToDictionaryHint() {
|
|
return mSuggestionsStrip.getChildCount() > 0
|
|
&& mParams.isAddToDictionaryShowing(mSuggestionsStrip.getChildAt(0));
|
|
}
|
|
|
|
public void showAddToDictionaryHint(final CharSequence word, final CharSequence hintText) {
|
|
clear();
|
|
mParams.layoutAddToDictionaryHint(word, mSuggestionsStrip, getWidth(), hintText, this);
|
|
}
|
|
|
|
public boolean dismissAddToDictionaryHint() {
|
|
if (isShowingAddToDictionaryHint()) {
|
|
clear();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public SuggestedWords getSuggestions() {
|
|
return mSuggestedWords;
|
|
}
|
|
|
|
public void clear() {
|
|
mSuggestionsStrip.removeAllViews();
|
|
removeAllViews();
|
|
addView(mSuggestionsStrip);
|
|
dismissMoreSuggestions();
|
|
}
|
|
|
|
void hidePreview() {
|
|
mPreviewPopup.dismiss();
|
|
}
|
|
|
|
private final KeyboardActionListener mMoreSuggestionsListener =
|
|
new KeyboardActionListener.Adapter() {
|
|
@Override
|
|
public boolean onCustomRequest(final int requestCode) {
|
|
final int index = requestCode;
|
|
final CharSequence word = mSuggestedWords.getWord(index);
|
|
mListener.pickSuggestionManually(index, word);
|
|
dismissMoreSuggestions();
|
|
return true;
|
|
}
|
|
|
|
@Override
|
|
public void onCancelInput() {
|
|
dismissMoreSuggestions();
|
|
}
|
|
};
|
|
|
|
private final MoreKeysPanel.Controller mMoreSuggestionsController =
|
|
new MoreKeysPanel.Controller() {
|
|
@Override
|
|
public boolean dismissMoreKeysPanel() {
|
|
return dismissMoreSuggestions();
|
|
}
|
|
};
|
|
|
|
boolean dismissMoreSuggestions() {
|
|
if (mMoreSuggestionsWindow.isShowing()) {
|
|
mMoreSuggestionsWindow.dismiss();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
@Override
|
|
public boolean onLongClick(final View view) {
|
|
KeyboardSwitcher.getInstance().hapticAndAudioFeedback(Constants.NOT_A_CODE);
|
|
return showMoreSuggestions();
|
|
}
|
|
|
|
boolean showMoreSuggestions() {
|
|
final Keyboard parentKeyboard = KeyboardSwitcher.getInstance().getKeyboard();
|
|
if (parentKeyboard == null) {
|
|
return false;
|
|
}
|
|
final SuggestionStripViewParams params = mParams;
|
|
if (!params.mMoreSuggestionsAvailable) {
|
|
return false;
|
|
}
|
|
final int stripWidth = getWidth();
|
|
final View container = mMoreSuggestionsContainer;
|
|
final int maxWidth = stripWidth - container.getPaddingLeft() - container.getPaddingRight();
|
|
final MoreSuggestions.Builder builder = mMoreSuggestionsBuilder;
|
|
builder.layout(mSuggestedWords, params.mSuggestionsCountInStrip, maxWidth,
|
|
(int)(maxWidth * params.mMinMoreSuggestionsWidth),
|
|
params.getMaxMoreSuggestionsRow(), parentKeyboard);
|
|
mMoreSuggestionsView.setKeyboard(builder.build());
|
|
container.measure(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
|
|
|
|
final MoreKeysPanel moreKeysPanel = mMoreSuggestionsView;
|
|
final int pointX = stripWidth / 2;
|
|
final int pointY = -params.mMoreSuggestionsBottomGap;
|
|
moreKeysPanel.showMoreKeysPanel(this, mMoreSuggestionsController, pointX, pointY,
|
|
mMoreSuggestionsWindow, mMoreSuggestionsListener);
|
|
mMoreSuggestionsMode = MORE_SUGGESTIONS_CHECKING_MODAL_OR_SLIDING;
|
|
mOriginX = mLastX;
|
|
mOriginY = mLastY;
|
|
mKeyboardView.dimEntireKeyboard(true);
|
|
for (int i = 0; i < params.mSuggestionsCountInStrip; i++) {
|
|
mWords.get(i).setPressed(false);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// Working variables for onLongClick and dispatchTouchEvent.
|
|
private int mMoreSuggestionsMode = MORE_SUGGESTIONS_IN_MODAL_MODE;
|
|
private static final int MORE_SUGGESTIONS_IN_MODAL_MODE = 0;
|
|
private static final int MORE_SUGGESTIONS_CHECKING_MODAL_OR_SLIDING = 1;
|
|
private static final int MORE_SUGGESTIONS_IN_SLIDING_MODE = 2;
|
|
private int mLastX;
|
|
private int mLastY;
|
|
private int mOriginX;
|
|
private int mOriginY;
|
|
private final int mMoreSuggestionsModalTolerance;
|
|
private final GestureDetector mMoreSuggestionsSlidingDetector;
|
|
private final GestureDetector.OnGestureListener mMoreSuggestionsSlidingListener =
|
|
new GestureDetector.SimpleOnGestureListener() {
|
|
@Override
|
|
public boolean onScroll(MotionEvent down, MotionEvent me, float deltaX, float deltaY) {
|
|
final float dy = me.getY() - down.getY();
|
|
if (deltaY > 0 && dy < 0) {
|
|
return showMoreSuggestions();
|
|
}
|
|
return false;
|
|
}
|
|
};
|
|
|
|
@Override
|
|
public boolean dispatchTouchEvent(final MotionEvent me) {
|
|
if (!mMoreSuggestionsWindow.isShowing()
|
|
|| mMoreSuggestionsMode == MORE_SUGGESTIONS_IN_MODAL_MODE) {
|
|
mLastX = (int)me.getX();
|
|
mLastY = (int)me.getY();
|
|
if (mMoreSuggestionsSlidingDetector.onTouchEvent(me)) {
|
|
return true;
|
|
}
|
|
return super.dispatchTouchEvent(me);
|
|
}
|
|
|
|
final MoreKeysPanel moreKeysPanel = mMoreSuggestionsView;
|
|
final int action = me.getAction();
|
|
final long eventTime = me.getEventTime();
|
|
final int index = me.getActionIndex();
|
|
final int id = me.getPointerId(index);
|
|
final PointerTracker tracker = PointerTracker.getPointerTracker(id, moreKeysPanel);
|
|
final int x = (int)me.getX(index);
|
|
final int y = (int)me.getY(index);
|
|
final int translatedX = moreKeysPanel.translateX(x);
|
|
final int translatedY = moreKeysPanel.translateY(y);
|
|
|
|
if (mMoreSuggestionsMode == MORE_SUGGESTIONS_CHECKING_MODAL_OR_SLIDING) {
|
|
if (Math.abs(x - mOriginX) >= mMoreSuggestionsModalTolerance
|
|
|| mOriginY - y >= mMoreSuggestionsModalTolerance) {
|
|
// Decided to be in the sliding input mode only when the touch point has been moved
|
|
// upward.
|
|
mMoreSuggestionsMode = MORE_SUGGESTIONS_IN_SLIDING_MODE;
|
|
tracker.onShowMoreKeysPanel(translatedX, translatedY, moreKeysPanel);
|
|
} else if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_POINTER_UP) {
|
|
// Decided to be in the modal input mode
|
|
mMoreSuggestionsMode = MORE_SUGGESTIONS_IN_MODAL_MODE;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// MORE_SUGGESTIONS_IN_SLIDING_MODE
|
|
tracker.processMotionEvent(action, translatedX, translatedY, eventTime, moreKeysPanel);
|
|
return true;
|
|
}
|
|
|
|
@Override
|
|
public void onClick(final View view) {
|
|
if (mParams.isAddToDictionaryShowing(view)) {
|
|
mListener.addWordToUserDictionary(mParams.getAddToDictionaryWord().toString());
|
|
clear();
|
|
return;
|
|
}
|
|
|
|
final Object tag = view.getTag();
|
|
if (!(tag instanceof Integer))
|
|
return;
|
|
final int index = (Integer) tag;
|
|
if (index >= mSuggestedWords.size())
|
|
return;
|
|
|
|
final CharSequence word = mSuggestedWords.getWord(index);
|
|
mListener.pickSuggestionManually(index, word);
|
|
}
|
|
|
|
@Override
|
|
protected void onDetachedFromWindow() {
|
|
super.onDetachedFromWindow();
|
|
mHandler.cancelAllMessages();
|
|
hidePreview();
|
|
dismissMoreSuggestions();
|
|
}
|
|
}
|