Merge "Separate SuggestionStripLayoutHelper for readablity"
Tadashi G. Takaoka
Android (Google) Code Review
commit
d67db32b30
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@ -0,0 +1,554 @@
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/*
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* Copyright (C) 2013 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.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.Rect;
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import android.graphics.Typeface;
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import android.graphics.Paint.Align;
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import android.graphics.drawable.BitmapDrawable;
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import android.graphics.drawable.Drawable;
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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.Gravity;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.View.OnClickListener;
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import android.widget.LinearLayout;
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import android.widget.TextView;
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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.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.SuggestedWords;
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import com.android.inputmethod.latin.Utils;
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import java.util.ArrayList;
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final class SuggestionStripLayoutHelper {
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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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private static final float MIN_TEXT_XSCALE = 0.70f;
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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 SuggestionStripLayoutHelper(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(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(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(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 indexInSuggestedWords) {
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final String word = suggestedWords.getWord(indexInSuggestedWords);
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final boolean isAutoCorrect = indexInSuggestedWords == 1
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&& suggestedWords.willAutoCorrect();
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final boolean isTypedWordValid = indexInSuggestedWords == 0
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&& 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 getIndexInSuggestedWords(final int indexInStrip,
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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 mostImportantIndexInSuggestedWords = suggestedWords.willAutoCorrect() ? 1 : 0;
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if (indexInStrip == mCenterSuggestionIndex) {
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return mostImportantIndexInSuggestedWords;
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} else if (indexInStrip == mostImportantIndexInSuggestedWords) {
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return mCenterSuggestionIndex;
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} else {
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return indexInStrip;
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}
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}
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private int getSuggestionTextColor(final int indexInStrip,
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final SuggestedWords suggestedWords) {
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final int indexInSuggestedWords = getIndexInSuggestedWords(
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indexInStrip, suggestedWords);
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// TODO: Need to revisit this logic with bigram suggestions
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final boolean isSuggested = (indexInSuggestedWords != 0);
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final int color;
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if (indexInStrip == mCenterSuggestionIndex && suggestedWords.willAutoCorrect()) {
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color = mColorAutoCorrect;
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} else if (indexInStrip == 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 (indexInStrip == mCenterSuggestionIndex
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&& AutoCorrection.shouldBlockAutoCorrectionBySafetyNet(
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suggestedWords.getWord(1), 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 indexInStrip = 0; indexInStrip < countInStrip; indexInStrip++) {
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if (indexInStrip != 0) {
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final View divider = mDividers.get(indexInStrip);
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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 int width = getSuggestionWidth(indexInStrip, stripWidth);
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final TextView word = layoutWord(suggestedWords, indexInStrip, width);
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stripView.addView(word);
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setLayoutWeight(word, getSuggestionWeight(indexInStrip),
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ViewGroup.LayoutParams.MATCH_PARENT);
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x += word.getMeasuredWidth();
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if (SuggestionStripView.DBG) {
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layoutDebugInfo(suggestedWords, indexInStrip, placer, x);
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}
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}
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}
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/**
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* Format appropriately the suggested word indirectly specified by
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* <code>indexInStrip</code> as text in a corresponding {@link TextView}. When the
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* suggested word doesn't exist, the corresponding {@link TextView} will be disabled
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* and never respond to user interaction. The suggested word may be shrunk or ellipsized to
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* fit in the specified width.
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*
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* The <code>indexInStrip</code> argument is the index in the suggestion strip. The indices
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* increase towards the right for LTR scripts and the left for RTL scripts, starting with 0.
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* The index of the most important suggestion is in {@link #mCenterSuggestionIndex}. This
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* usually doesn't match the index in <code>suggedtedWords</code> -- see
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* {@link #getIndexInSuggestedWords(int,SuggestedWords)}.
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*
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* @param suggestedWords the list of suggestions.
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* @param indexInStrip the in the suggestion strip.
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* @param width the maximum width for layout in pixels.
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* @return the {@link TextView} containing the suggested word appropriately formatted.
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*/
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private TextView layoutWord(final SuggestedWords suggestedWords, final int indexInStrip,
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final int width) {
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final int indexInSuggestedWords = getIndexInSuggestedWords(indexInStrip, suggestedWords);
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final CharSequence styled = mTexts.get(indexInSuggestedWords);
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final TextView word = mWords.get(indexInSuggestedWords);
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if (indexInStrip == mCenterSuggestionIndex && mMoreSuggestionsAvailable) {
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// TODO: This "more suggestions hint" should have a nicely designed icon.
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word.setCompoundDrawablesWithIntrinsicBounds(
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null, null, null, mMoreSuggestionsHint);
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// HACK: Align with other TextViews that have 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(indexInStrip, suggestedWords));
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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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return word;
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}
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private void layoutDebugInfo(final SuggestedWords suggestedWords, final int indexInStrip,
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final ViewGroup placer, final int x) {
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final int indexInSuggestedWords = getIndexInSuggestedWords(indexInStrip, suggestedWords);
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if (indexInSuggestedWords >= suggestedWords.size()) {
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return;
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}
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final String debugInfo = Utils.getDebugInfo(suggestedWords, indexInSuggestedWords);
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if (debugInfo == null) {
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return;
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}
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final TextView info = mInfos.get(indexInSuggestedWords);
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info.setText(debugInfo);
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placer.addView(info);
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info.measure(ViewGroup.LayoutParams.WRAP_CONTENT, 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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private int getSuggestionWidth(final int indexInStrip, 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(indexInStrip));
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}
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private float getSuggestionWeight(final int indexInStrip) {
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if (indexInStrip == 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);
|
||||
}
|
||||
}
|
||||
|
||||
private void layoutPunctuationSuggestions(final SuggestedWords suggestedWords,
|
||||
final ViewGroup stripView) {
|
||||
final int countInStrip = Math.min(suggestedWords.size(), PUNCTUATIONS_IN_STRIP);
|
||||
for (int indexInStrip = 0; indexInStrip < countInStrip; indexInStrip++) {
|
||||
if (indexInStrip != 0) {
|
||||
// Add divider if this isn't the left most suggestion in suggestions strip.
|
||||
addDivider(stripView, mDividers.get(indexInStrip));
|
||||
}
|
||||
|
||||
final TextView word = mWords.get(indexInStrip);
|
||||
word.setEnabled(true);
|
||||
word.setTextColor(mColorAutoCorrect);
|
||||
final String text = suggestedWords.getWord(indexInStrip);
|
||||
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 String 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;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -18,34 +18,14 @@ package com.android.inputmethod.latin.suggestions;
|
|||
|
||||
import android.content.Context;
|
||||
import android.content.res.Resources;
|
||||
import android.content.res.TypedArray;
|
||||
import android.graphics.Bitmap;
|
||||
import android.graphics.Canvas;
|
||||
import android.graphics.Color;
|
||||
import android.graphics.Paint;
|
||||
import android.graphics.Paint.Align;
|
||||
import android.graphics.Rect;
|
||||
import android.graphics.Typeface;
|
||||
import android.graphics.drawable.BitmapDrawable;
|
||||
import android.graphics.drawable.Drawable;
|
||||
import android.text.Spannable;
|
||||
import android.text.SpannableString;
|
||||
import android.text.Spanned;
|
||||
import android.text.TextPaint;
|
||||
import android.text.TextUtils;
|
||||
import android.text.style.CharacterStyle;
|
||||
import android.text.style.StyleSpan;
|
||||
import android.text.style.UnderlineSpan;
|
||||
import android.util.AttributeSet;
|
||||
import android.view.GestureDetector;
|
||||
import android.view.Gravity;
|
||||
import android.view.LayoutInflater;
|
||||
import android.view.MotionEvent;
|
||||
import android.view.View;
|
||||
import android.view.View.OnClickListener;
|
||||
import android.view.View.OnLongClickListener;
|
||||
import android.view.ViewGroup;
|
||||
import android.widget.LinearLayout;
|
||||
import android.widget.RelativeLayout;
|
||||
import android.widget.TextView;
|
||||
|
||||
|
|
@ -53,17 +33,13 @@ import com.android.inputmethod.keyboard.Keyboard;
|
|||
import com.android.inputmethod.keyboard.KeyboardSwitcher;
|
||||
import com.android.inputmethod.keyboard.MainKeyboardView;
|
||||
import com.android.inputmethod.keyboard.MoreKeysPanel;
|
||||
import com.android.inputmethod.keyboard.ViewLayoutUtils;
|
||||
import com.android.inputmethod.latin.AudioAndHapticFeedbackManager;
|
||||
import com.android.inputmethod.latin.AutoCorrection;
|
||||
import com.android.inputmethod.latin.CollectionUtils;
|
||||
import com.android.inputmethod.latin.Constants;
|
||||
import com.android.inputmethod.latin.LatinImeLogger;
|
||||
import com.android.inputmethod.latin.R;
|
||||
import com.android.inputmethod.latin.ResourceUtils;
|
||||
import com.android.inputmethod.latin.SuggestedWords;
|
||||
import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo;
|
||||
import com.android.inputmethod.latin.Utils;
|
||||
import com.android.inputmethod.latin.define.ProductionFlag;
|
||||
import com.android.inputmethod.latin.suggestions.MoreSuggestions.MoreSuggestionsListener;
|
||||
import com.android.inputmethod.research.ResearchLogger;
|
||||
|
|
@ -96,509 +72,7 @@ public final class SuggestionStripView extends RelativeLayout implements OnClick
|
|||
Listener mListener;
|
||||
private SuggestedWords mSuggestedWords = SuggestedWords.EMPTY;
|
||||
|
||||
private final SuggestionStripViewParams mParams;
|
||||
private static final float MIN_TEXT_XSCALE = 0.70f;
|
||||
|
||||
private static final class SuggestionStripViewParams {
|
||||
private static final int DEFAULT_SUGGESTIONS_COUNT_IN_STRIP = 3;
|
||||
private static final float DEFAULT_CENTER_SUGGESTION_PERCENTILE = 0.40f;
|
||||
private static final int DEFAULT_MAX_MORE_SUGGESTIONS_ROW = 2;
|
||||
private static final int PUNCTUATIONS_IN_STRIP = 5;
|
||||
|
||||
public final int mPadding;
|
||||
public final int mDividerWidth;
|
||||
public final int mSuggestionsStripHeight;
|
||||
public final int mSuggestionsCountInStrip;
|
||||
public final int mMoreSuggestionsRowHeight;
|
||||
private int mMaxMoreSuggestionsRow;
|
||||
public final float mMinMoreSuggestionsWidth;
|
||||
public final int mMoreSuggestionsBottomGap;
|
||||
|
||||
private final ArrayList<TextView> mWords;
|
||||
private final ArrayList<View> mDividers;
|
||||
private final ArrayList<TextView> mInfos;
|
||||
|
||||
private final int mColorValidTypedWord;
|
||||
private final int mColorTypedWord;
|
||||
private final int mColorAutoCorrect;
|
||||
private final int mColorSuggested;
|
||||
private final float mAlphaObsoleted;
|
||||
private final float mCenterSuggestionWeight;
|
||||
private final int mCenterSuggestionIndex;
|
||||
private final Drawable mMoreSuggestionsHint;
|
||||
private static final String MORE_SUGGESTIONS_HINT = "\u2026";
|
||||
private static final String LEFTWARDS_ARROW = "\u2190";
|
||||
|
||||
private static final CharacterStyle BOLD_SPAN = new StyleSpan(Typeface.BOLD);
|
||||
private static final CharacterStyle UNDERLINE_SPAN = new UnderlineSpan();
|
||||
private static final int AUTO_CORRECT_BOLD = 0x01;
|
||||
private static final int AUTO_CORRECT_UNDERLINE = 0x02;
|
||||
private static final int VALID_TYPED_WORD_BOLD = 0x04;
|
||||
|
||||
private final int mSuggestionStripOption;
|
||||
|
||||
private final ArrayList<CharSequence> mTexts = CollectionUtils.newArrayList();
|
||||
|
||||
public boolean mMoreSuggestionsAvailable;
|
||||
|
||||
private final TextView mWordToSaveView;
|
||||
private final TextView mLeftwardsArrowView;
|
||||
private final TextView mHintToSaveView;
|
||||
|
||||
public SuggestionStripViewParams(final Context context, final AttributeSet attrs,
|
||||
final int defStyle, final ArrayList<TextView> words, final ArrayList<View> dividers,
|
||||
final ArrayList<TextView> infos) {
|
||||
mWords = words;
|
||||
mDividers = dividers;
|
||||
mInfos = infos;
|
||||
|
||||
final TextView word = words.get(0);
|
||||
final View divider = dividers.get(0);
|
||||
mPadding = word.getCompoundPaddingLeft() + word.getCompoundPaddingRight();
|
||||
divider.measure(
|
||||
ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
|
||||
mDividerWidth = divider.getMeasuredWidth();
|
||||
|
||||
final Resources res = word.getResources();
|
||||
mSuggestionsStripHeight = res.getDimensionPixelSize(R.dimen.suggestions_strip_height);
|
||||
|
||||
final TypedArray a = context.obtainStyledAttributes(attrs,
|
||||
R.styleable.SuggestionStripView, defStyle, R.style.SuggestionStripViewStyle);
|
||||
mSuggestionStripOption = a.getInt(
|
||||
R.styleable.SuggestionStripView_suggestionStripOption, 0);
|
||||
final float alphaValidTypedWord = ResourceUtils.getFraction(a,
|
||||
R.styleable.SuggestionStripView_alphaValidTypedWord, 1.0f);
|
||||
final float alphaTypedWord = ResourceUtils.getFraction(a,
|
||||
R.styleable.SuggestionStripView_alphaTypedWord, 1.0f);
|
||||
final float alphaAutoCorrect = ResourceUtils.getFraction(a,
|
||||
R.styleable.SuggestionStripView_alphaAutoCorrect, 1.0f);
|
||||
final float alphaSuggested = ResourceUtils.getFraction(a,
|
||||
R.styleable.SuggestionStripView_alphaSuggested, 1.0f);
|
||||
mAlphaObsoleted = ResourceUtils.getFraction(a,
|
||||
R.styleable.SuggestionStripView_alphaSuggested, 1.0f);
|
||||
mColorValidTypedWord = applyAlpha(a.getColor(
|
||||
R.styleable.SuggestionStripView_colorValidTypedWord, 0), alphaValidTypedWord);
|
||||
mColorTypedWord = applyAlpha(a.getColor(
|
||||
R.styleable.SuggestionStripView_colorTypedWord, 0), alphaTypedWord);
|
||||
mColorAutoCorrect = applyAlpha(a.getColor(
|
||||
R.styleable.SuggestionStripView_colorAutoCorrect, 0), alphaAutoCorrect);
|
||||
mColorSuggested = applyAlpha(a.getColor(
|
||||
R.styleable.SuggestionStripView_colorSuggested, 0), alphaSuggested);
|
||||
mSuggestionsCountInStrip = a.getInt(
|
||||
R.styleable.SuggestionStripView_suggestionsCountInStrip,
|
||||
DEFAULT_SUGGESTIONS_COUNT_IN_STRIP);
|
||||
mCenterSuggestionWeight = ResourceUtils.getFraction(a,
|
||||
R.styleable.SuggestionStripView_centerSuggestionPercentile,
|
||||
DEFAULT_CENTER_SUGGESTION_PERCENTILE);
|
||||
mMaxMoreSuggestionsRow = a.getInt(
|
||||
R.styleable.SuggestionStripView_maxMoreSuggestionsRow,
|
||||
DEFAULT_MAX_MORE_SUGGESTIONS_ROW);
|
||||
mMinMoreSuggestionsWidth = ResourceUtils.getFraction(a,
|
||||
R.styleable.SuggestionStripView_minMoreSuggestionsWidth, 1.0f);
|
||||
a.recycle();
|
||||
|
||||
mMoreSuggestionsHint = getMoreSuggestionsHint(res,
|
||||
res.getDimension(R.dimen.more_suggestions_hint_text_size), mColorAutoCorrect);
|
||||
mCenterSuggestionIndex = mSuggestionsCountInStrip / 2;
|
||||
mMoreSuggestionsBottomGap = res.getDimensionPixelOffset(
|
||||
R.dimen.more_suggestions_bottom_gap);
|
||||
mMoreSuggestionsRowHeight = res.getDimensionPixelSize(
|
||||
R.dimen.more_suggestions_row_height);
|
||||
|
||||
final LayoutInflater inflater = LayoutInflater.from(context);
|
||||
mWordToSaveView = (TextView)inflater.inflate(R.layout.suggestion_word, null);
|
||||
mLeftwardsArrowView = (TextView)inflater.inflate(R.layout.hint_add_to_dictionary, null);
|
||||
mHintToSaveView = (TextView)inflater.inflate(R.layout.hint_add_to_dictionary, null);
|
||||
}
|
||||
|
||||
public int getMaxMoreSuggestionsRow() {
|
||||
return mMaxMoreSuggestionsRow;
|
||||
}
|
||||
|
||||
private int getMoreSuggestionsHeight() {
|
||||
return mMaxMoreSuggestionsRow * mMoreSuggestionsRowHeight + mMoreSuggestionsBottomGap;
|
||||
}
|
||||
|
||||
public int setMoreSuggestionsHeight(final int remainingHeight) {
|
||||
final int currentHeight = getMoreSuggestionsHeight();
|
||||
if (currentHeight <= remainingHeight) {
|
||||
return currentHeight;
|
||||
}
|
||||
|
||||
mMaxMoreSuggestionsRow = (remainingHeight - mMoreSuggestionsBottomGap)
|
||||
/ mMoreSuggestionsRowHeight;
|
||||
final int newHeight = getMoreSuggestionsHeight();
|
||||
return newHeight;
|
||||
}
|
||||
|
||||
private static Drawable getMoreSuggestionsHint(final Resources res, final float textSize,
|
||||
final int color) {
|
||||
final Paint paint = new Paint();
|
||||
paint.setAntiAlias(true);
|
||||
paint.setTextAlign(Align.CENTER);
|
||||
paint.setTextSize(textSize);
|
||||
paint.setColor(color);
|
||||
final Rect bounds = new Rect();
|
||||
paint.getTextBounds(MORE_SUGGESTIONS_HINT, 0, MORE_SUGGESTIONS_HINT.length(), bounds);
|
||||
final int width = Math.round(bounds.width() + 0.5f);
|
||||
final int height = Math.round(bounds.height() + 0.5f);
|
||||
final Bitmap buffer = Bitmap.createBitmap(
|
||||
width, (height * 3 / 2), Bitmap.Config.ARGB_8888);
|
||||
final Canvas canvas = new Canvas(buffer);
|
||||
canvas.drawText(MORE_SUGGESTIONS_HINT, width / 2, height, paint);
|
||||
return new BitmapDrawable(res, buffer);
|
||||
}
|
||||
|
||||
private CharSequence getStyledSuggestionWord(final SuggestedWords suggestedWords,
|
||||
final int indexInSuggestedWords) {
|
||||
final String word = suggestedWords.getWord(indexInSuggestedWords);
|
||||
final boolean isAutoCorrect = indexInSuggestedWords == 1
|
||||
&& suggestedWords.willAutoCorrect();
|
||||
final boolean isTypedWordValid = indexInSuggestedWords == 0
|
||||
&& suggestedWords.mTypedWordValid;
|
||||
if (!isAutoCorrect && !isTypedWordValid)
|
||||
return word;
|
||||
|
||||
final int len = word.length();
|
||||
final Spannable spannedWord = new SpannableString(word);
|
||||
final int option = mSuggestionStripOption;
|
||||
if ((isAutoCorrect && (option & AUTO_CORRECT_BOLD) != 0)
|
||||
|| (isTypedWordValid && (option & VALID_TYPED_WORD_BOLD) != 0)) {
|
||||
spannedWord.setSpan(BOLD_SPAN, 0, len, Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
|
||||
}
|
||||
if (isAutoCorrect && (option & AUTO_CORRECT_UNDERLINE) != 0) {
|
||||
spannedWord.setSpan(UNDERLINE_SPAN, 0, len, Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
|
||||
}
|
||||
return spannedWord;
|
||||
}
|
||||
|
||||
private int getIndexInSuggestedWords(final int indexInStrip,
|
||||
final SuggestedWords suggestedWords) {
|
||||
// TODO: This works for 3 suggestions. Revisit this algorithm when there are 5 or more
|
||||
// suggestions.
|
||||
final int mostImportantIndexInSuggestedWords = suggestedWords.willAutoCorrect() ? 1 : 0;
|
||||
if (indexInStrip == mCenterSuggestionIndex) {
|
||||
return mostImportantIndexInSuggestedWords;
|
||||
} else if (indexInStrip == mostImportantIndexInSuggestedWords) {
|
||||
return mCenterSuggestionIndex;
|
||||
} else {
|
||||
return indexInStrip;
|
||||
}
|
||||
}
|
||||
|
||||
private int getSuggestionTextColor(final int indexInStrip,
|
||||
final SuggestedWords suggestedWords) {
|
||||
final int indexInSuggestedWords = getIndexInSuggestedWords(
|
||||
indexInStrip, suggestedWords);
|
||||
// TODO: Need to revisit this logic with bigram suggestions
|
||||
final boolean isSuggested = (indexInSuggestedWords != 0);
|
||||
|
||||
final int color;
|
||||
if (indexInStrip == mCenterSuggestionIndex && suggestedWords.willAutoCorrect()) {
|
||||
color = mColorAutoCorrect;
|
||||
} else if (indexInStrip == mCenterSuggestionIndex && suggestedWords.mTypedWordValid) {
|
||||
color = mColorValidTypedWord;
|
||||
} else if (isSuggested) {
|
||||
color = mColorSuggested;
|
||||
} else {
|
||||
color = mColorTypedWord;
|
||||
}
|
||||
if (LatinImeLogger.sDBG && suggestedWords.size() > 1) {
|
||||
// If we auto-correct, then the autocorrection is in slot 0 and the typed word
|
||||
// is in slot 1.
|
||||
if (indexInStrip == mCenterSuggestionIndex
|
||||
&& AutoCorrection.shouldBlockAutoCorrectionBySafetyNet(
|
||||
suggestedWords.getWord(1), suggestedWords.getWord(0))) {
|
||||
return 0xFFFF0000;
|
||||
}
|
||||
}
|
||||
|
||||
if (suggestedWords.mIsObsoleteSuggestions && isSuggested) {
|
||||
return applyAlpha(color, mAlphaObsoleted);
|
||||
} else {
|
||||
return color;
|
||||
}
|
||||
}
|
||||
|
||||
private static int applyAlpha(final int color, final float alpha) {
|
||||
final int newAlpha = (int)(Color.alpha(color) * alpha);
|
||||
return Color.argb(newAlpha, Color.red(color), Color.green(color), Color.blue(color));
|
||||
}
|
||||
|
||||
private static void addDivider(final ViewGroup stripView, final View divider) {
|
||||
stripView.addView(divider);
|
||||
final LinearLayout.LayoutParams params =
|
||||
(LinearLayout.LayoutParams)divider.getLayoutParams();
|
||||
params.gravity = Gravity.CENTER;
|
||||
}
|
||||
|
||||
public void layout(final SuggestedWords suggestedWords, final ViewGroup stripView,
|
||||
final ViewGroup placer, final int stripWidth) {
|
||||
if (suggestedWords.mIsPunctuationSuggestions) {
|
||||
layoutPunctuationSuggestions(suggestedWords, stripView);
|
||||
return;
|
||||
}
|
||||
|
||||
final int countInStrip = mSuggestionsCountInStrip;
|
||||
setupTexts(suggestedWords, countInStrip);
|
||||
mMoreSuggestionsAvailable = (suggestedWords.size() > countInStrip);
|
||||
int x = 0;
|
||||
for (int indexInStrip = 0; indexInStrip < countInStrip; indexInStrip++) {
|
||||
if (indexInStrip != 0) {
|
||||
final View divider = mDividers.get(indexInStrip);
|
||||
// Add divider if this isn't the left most suggestion in suggestions strip.
|
||||
addDivider(stripView, divider);
|
||||
x += divider.getMeasuredWidth();
|
||||
}
|
||||
|
||||
final int width = getSuggestionWidth(indexInStrip, stripWidth);
|
||||
final TextView word = layoutWord(suggestedWords, indexInStrip, width);
|
||||
stripView.addView(word);
|
||||
setLayoutWeight(word, getSuggestionWeight(indexInStrip),
|
||||
ViewGroup.LayoutParams.MATCH_PARENT);
|
||||
x += word.getMeasuredWidth();
|
||||
|
||||
if (DBG) {
|
||||
layoutDebugInfo(suggestedWords, indexInStrip, placer, x);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Format appropriately the suggested word indirectly specified by
|
||||
* <code>indexInStrip</code> as text in a corresponding {@link TextView}. When the
|
||||
* suggested word doesn't exist, the corresponding {@link TextView} will be disabled
|
||||
* and never respond to user interaction. The suggested word may be shrunk or ellipsized to
|
||||
* fit in the specified width.
|
||||
*
|
||||
* The <code>indexInStrip</code> argument is the index in the suggestion strip. The indices
|
||||
* increase towards the right for LTR scripts and the left for RTL scripts, starting with 0.
|
||||
* The index of the most important suggestion is in {@link #mCenterSuggestionIndex}. This
|
||||
* usually doesn't match the index in <code>suggedtedWords</code> -- see
|
||||
* {@link #getIndexInSuggestedWords(int,SuggestedWords)}.
|
||||
*
|
||||
* @param suggestedWords the list of suggestions.
|
||||
* @param indexInStrip the in the suggestion strip.
|
||||
* @param width the maximum width for layout in pixels.
|
||||
* @return the {@link TextView} containing the suggested word appropriately formatted.
|
||||
*/
|
||||
private TextView layoutWord(final SuggestedWords suggestedWords, final int indexInStrip,
|
||||
final int width) {
|
||||
final int indexInSuggestedWords = getIndexInSuggestedWords(
|
||||
indexInStrip, suggestedWords);
|
||||
final CharSequence styled = mTexts.get(indexInSuggestedWords);
|
||||
final TextView word = mWords.get(indexInSuggestedWords);
|
||||
if (indexInStrip == mCenterSuggestionIndex && mMoreSuggestionsAvailable) {
|
||||
// TODO: This "more suggestions hint" should have a nicely designed icon.
|
||||
word.setCompoundDrawablesWithIntrinsicBounds(
|
||||
null, null, null, mMoreSuggestionsHint);
|
||||
// HACK: Align with other TextViews that have no compound drawables.
|
||||
word.setCompoundDrawablePadding(-mMoreSuggestionsHint.getIntrinsicHeight());
|
||||
} else {
|
||||
word.setCompoundDrawablesWithIntrinsicBounds(null, null, null, null);
|
||||
}
|
||||
|
||||
// Disable this suggestion if the suggestion is null or empty.
|
||||
word.setEnabled(!TextUtils.isEmpty(styled));
|
||||
word.setTextColor(getSuggestionTextColor(indexInStrip, suggestedWords));
|
||||
final CharSequence text = getEllipsizedText(styled, width, word.getPaint());
|
||||
final float scaleX = word.getTextScaleX();
|
||||
word.setText(text); // TextView.setText() resets text scale x to 1.0.
|
||||
word.setTextScaleX(scaleX);
|
||||
return word;
|
||||
}
|
||||
|
||||
private void layoutDebugInfo(final SuggestedWords suggestedWords, final int indexInStrip,
|
||||
final ViewGroup placer, final int x) {
|
||||
final int indexInSuggestedWords = getIndexInSuggestedWords(
|
||||
indexInStrip, suggestedWords);
|
||||
if (indexInSuggestedWords >= suggestedWords.size()) {
|
||||
return;
|
||||
}
|
||||
final String debugInfo = Utils.getDebugInfo(suggestedWords, indexInSuggestedWords);
|
||||
if (debugInfo == null) {
|
||||
return;
|
||||
}
|
||||
final TextView info = mInfos.get(indexInSuggestedWords);
|
||||
info.setText(debugInfo);
|
||||
placer.addView(info);
|
||||
info.measure(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
|
||||
final int infoWidth = info.getMeasuredWidth();
|
||||
final int y = info.getMeasuredHeight();
|
||||
ViewLayoutUtils.placeViewAt(
|
||||
info, x - infoWidth, y, infoWidth, info.getMeasuredHeight());
|
||||
}
|
||||
|
||||
private int getSuggestionWidth(final int indexInStrip, final int maxWidth) {
|
||||
final int paddings = mPadding * mSuggestionsCountInStrip;
|
||||
final int dividers = mDividerWidth * (mSuggestionsCountInStrip - 1);
|
||||
final int availableWidth = maxWidth - paddings - dividers;
|
||||
return (int)(availableWidth * getSuggestionWeight(indexInStrip));
|
||||
}
|
||||
|
||||
private float getSuggestionWeight(final int indexInStrip) {
|
||||
if (indexInStrip == mCenterSuggestionIndex) {
|
||||
return mCenterSuggestionWeight;
|
||||
} else {
|
||||
// TODO: Revisit this for cases of 5 or more suggestions
|
||||
return (1.0f - mCenterSuggestionWeight) / (mSuggestionsCountInStrip - 1);
|
||||
}
|
||||
}
|
||||
|
||||
private void setupTexts(final SuggestedWords suggestedWords, final int countInStrip) {
|
||||
mTexts.clear();
|
||||
final int count = Math.min(suggestedWords.size(), countInStrip);
|
||||
for (int pos = 0; pos < count; pos++) {
|
||||
final CharSequence styled = getStyledSuggestionWord(suggestedWords, pos);
|
||||
mTexts.add(styled);
|
||||
}
|
||||
for (int pos = count; pos < countInStrip; pos++) {
|
||||
// Make this inactive for touches in layout().
|
||||
mTexts.add(null);
|
||||
}
|
||||
}
|
||||
|
||||
private void layoutPunctuationSuggestions(final SuggestedWords suggestedWords,
|
||||
final ViewGroup stripView) {
|
||||
final int countInStrip = Math.min(suggestedWords.size(), PUNCTUATIONS_IN_STRIP);
|
||||
for (int indexInStrip = 0; indexInStrip < countInStrip; indexInStrip++) {
|
||||
if (indexInStrip != 0) {
|
||||
// Add divider if this isn't the left most suggestion in suggestions strip.
|
||||
addDivider(stripView, mDividers.get(indexInStrip));
|
||||
}
|
||||
|
||||
final TextView word = mWords.get(indexInStrip);
|
||||
word.setEnabled(true);
|
||||
word.setTextColor(mColorAutoCorrect);
|
||||
final String text = suggestedWords.getWord(indexInStrip);
|
||||
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 String 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;
|
||||
}
|
||||
}
|
||||
}
|
||||
private final SuggestionStripLayoutHelper mLayoutHelper;
|
||||
|
||||
/**
|
||||
* Construct a {@link SuggestionStripView} for showing suggestions to be picked by the user.
|
||||
|
|
@ -630,7 +104,7 @@ public final class SuggestionStripView extends RelativeLayout implements OnClick
|
|||
mInfos.add((TextView)inflater.inflate(R.layout.suggestion_info, null));
|
||||
}
|
||||
|
||||
mParams = new SuggestionStripViewParams(
|
||||
mLayoutHelper = new SuggestionStripLayoutHelper(
|
||||
context, attrs, defStyle, mWords, mDividers, mInfos);
|
||||
|
||||
mMoreSuggestionsContainer = inflater.inflate(R.layout.more_suggestions, null);
|
||||
|
|
@ -657,24 +131,25 @@ public final class SuggestionStripView extends RelativeLayout implements OnClick
|
|||
public void setSuggestions(final SuggestedWords suggestedWords) {
|
||||
clear();
|
||||
mSuggestedWords = suggestedWords;
|
||||
mParams.layout(mSuggestedWords, mSuggestionsStrip, this, getWidth());
|
||||
mLayoutHelper.layout(mSuggestedWords, mSuggestionsStrip, this, getWidth());
|
||||
if (ProductionFlag.USES_DEVELOPMENT_ONLY_DIAGNOSTICS) {
|
||||
ResearchLogger.suggestionStripView_setSuggestions(mSuggestedWords);
|
||||
}
|
||||
}
|
||||
|
||||
public int setMoreSuggestionsHeight(final int remainingHeight) {
|
||||
return mParams.setMoreSuggestionsHeight(remainingHeight);
|
||||
return mLayoutHelper.setMoreSuggestionsHeight(remainingHeight);
|
||||
}
|
||||
|
||||
public boolean isShowingAddToDictionaryHint() {
|
||||
return mSuggestionsStrip.getChildCount() > 0
|
||||
&& mParams.isAddToDictionaryShowing(mSuggestionsStrip.getChildAt(0));
|
||||
&& mLayoutHelper.isAddToDictionaryShowing(mSuggestionsStrip.getChildAt(0));
|
||||
}
|
||||
|
||||
public void showAddToDictionaryHint(final String word, final CharSequence hintText) {
|
||||
clear();
|
||||
mParams.layoutAddToDictionaryHint(word, mSuggestionsStrip, getWidth(), hintText, this);
|
||||
mLayoutHelper.layoutAddToDictionaryHint(
|
||||
word, mSuggestionsStrip, getWidth(), hintText, this);
|
||||
}
|
||||
|
||||
public boolean dismissAddToDictionaryHint() {
|
||||
|
|
@ -739,29 +214,29 @@ public final class SuggestionStripView extends RelativeLayout implements OnClick
|
|||
if (parentKeyboard == null) {
|
||||
return false;
|
||||
}
|
||||
final SuggestionStripViewParams params = mParams;
|
||||
if (!params.mMoreSuggestionsAvailable) {
|
||||
final SuggestionStripLayoutHelper layoutHelper = mLayoutHelper;
|
||||
if (!layoutHelper.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);
|
||||
builder.layout(mSuggestedWords, layoutHelper.mSuggestionsCountInStrip, maxWidth,
|
||||
(int)(maxWidth * layoutHelper.mMinMoreSuggestionsWidth),
|
||||
layoutHelper.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;
|
||||
final int pointY = -layoutHelper.mMoreSuggestionsBottomGap;
|
||||
moreKeysPanel.showMoreKeysPanel(this, mMoreSuggestionsController, pointX, pointY,
|
||||
mMoreSuggestionsListener);
|
||||
mMoreSuggestionsMode = MORE_SUGGESTIONS_CHECKING_MODAL_OR_SLIDING;
|
||||
mOriginX = mLastX;
|
||||
mOriginY = mLastY;
|
||||
for (int i = 0; i < params.mSuggestionsCountInStrip; i++) {
|
||||
for (int i = 0; i < layoutHelper.mSuggestionsCountInStrip; i++) {
|
||||
mWords.get(i).setPressed(false);
|
||||
}
|
||||
return true;
|
||||
|
|
@ -832,8 +307,8 @@ public final class SuggestionStripView extends RelativeLayout implements OnClick
|
|||
|
||||
@Override
|
||||
public void onClick(final View view) {
|
||||
if (mParams.isAddToDictionaryShowing(view)) {
|
||||
mListener.addWordToUserDictionary(mParams.getAddToDictionaryWord().toString());
|
||||
if (mLayoutHelper.isAddToDictionaryShowing(view)) {
|
||||
mListener.addWordToUserDictionary(mLayoutHelper.getAddToDictionaryWord().toString());
|
||||
clear();
|
||||
return;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue