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authorTadashi G. Takaoka <takaoka@google.com>2012-07-23 15:28:28 +0900
committerTadashi G. Takaoka <takaoka@google.com>2012-07-23 15:37:43 +0900
commit4702671ea4feb0c79a879e2e3013afdd6ed800b1 (patch)
treea267b97a3760c684d52f1ed5ae0caa0eabe0939f /java/src/com/android/inputmethod/latin/suggestions/SuggestionsView.java
parentc8e45ddb032554f4e9d4411d8ef47d98db62d77b (diff)
downloadlatinime-4702671ea4feb0c79a879e2e3013afdd6ed800b1.tar.gz
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Rename SuggestionsView to SuggestionStripView
Diffstat (limited to 'java/src/com/android/inputmethod/latin/suggestions/SuggestionsView.java')
-rw-r--r--java/src/com/android/inputmethod/latin/suggestions/SuggestionsView.java885
1 files changed, 0 insertions, 885 deletions
diff --git a/java/src/com/android/inputmethod/latin/suggestions/SuggestionsView.java b/java/src/com/android/inputmethod/latin/suggestions/SuggestionsView.java
deleted file mode 100644
index 52ceb8698..000000000
--- a/java/src/com/android/inputmethod/latin/suggestions/SuggestionsView.java
+++ /dev/null
@@ -1,885 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
-package com.android.inputmethod.latin.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.ColorDrawable;
-import android.graphics.drawable.Drawable;
-import android.os.Message;
-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.PopupWindow;
-import android.widget.RelativeLayout;
-import android.widget.TextView;
-
-import com.android.inputmethod.keyboard.KeyboardActionListener;
-import com.android.inputmethod.keyboard.KeyboardView;
-import com.android.inputmethod.keyboard.MoreKeysPanel;
-import com.android.inputmethod.keyboard.PointerTracker;
-import com.android.inputmethod.keyboard.ViewLayoutUtils;
-import com.android.inputmethod.latin.AutoCorrection;
-import com.android.inputmethod.latin.LatinImeLogger;
-import com.android.inputmethod.latin.R;
-import com.android.inputmethod.latin.StaticInnerHandlerWrapper;
-import com.android.inputmethod.latin.SuggestedWords;
-import com.android.inputmethod.latin.Utils;
-import com.android.inputmethod.latin.define.ProductionFlag;
-import com.android.inputmethod.research.ResearchLogger;
-
-import java.util.ArrayList;
-
-public class SuggestionsView extends RelativeLayout implements OnClickListener,
- OnLongClickListener {
- public interface Listener {
- public boolean addWordToUserDictionary(String word);
- public void pickSuggestionManually(int index, CharSequence word, int x, int y);
- }
-
- // The maximum number of suggestions available. See {@link Suggest#mPrefMaxSuggestions}.
- public static final int MAX_SUGGESTIONS = 18;
-
- static final boolean DBG = LatinImeLogger.sDBG;
-
- private final ViewGroup mSuggestionsStrip;
- private KeyboardView mKeyboardView;
-
- private final View mMoreSuggestionsContainer;
- private final MoreSuggestionsView mMoreSuggestionsView;
- private final MoreSuggestions.Builder mMoreSuggestionsBuilder;
- private final PopupWindow mMoreSuggestionsWindow;
-
- private final ArrayList<TextView> mWords = new ArrayList<TextView>();
- private final ArrayList<TextView> mInfos = new ArrayList<TextView>();
- private final ArrayList<View> mDividers = new ArrayList<View>();
-
- private final PopupWindow mPreviewPopup;
- private final TextView mPreviewText;
-
- private Listener mListener;
- private SuggestedWords mSuggestedWords = SuggestedWords.EMPTY;
-
- private final SuggestionsViewParams mParams;
- private static final float MIN_TEXT_XSCALE = 0.70f;
-
- private final UiHandler mHandler = new UiHandler(this);
-
- private static class UiHandler extends StaticInnerHandlerWrapper<SuggestionsView> {
- private static final int MSG_HIDE_PREVIEW = 0;
-
- public UiHandler(SuggestionsView outerInstance) {
- super(outerInstance);
- }
-
- @Override
- public void dispatchMessage(Message msg) {
- final SuggestionsView suggestionsView = getOuterInstance();
- switch (msg.what) {
- case MSG_HIDE_PREVIEW:
- suggestionsView.hidePreview();
- break;
- }
- }
-
- public void cancelHidePreview() {
- removeMessages(MSG_HIDE_PREVIEW);
- }
-
- public void cancelAllMessages() {
- cancelHidePreview();
- }
- }
-
- private static class SuggestionsViewParams {
- private static final int DEFAULT_SUGGESTIONS_COUNT_IN_STRIP = 3;
- private static final int DEFAULT_CENTER_SUGGESTION_PERCENTILE = 40;
- 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 = new ArrayList<CharSequence>();
-
- public boolean mMoreSuggestionsAvailable;
-
- private final TextView mWordToSaveView;
- private final TextView mLeftwardsArrowView;
- private final TextView mHintToSaveView;
-
- public SuggestionsViewParams(Context context, AttributeSet attrs, int defStyle,
- ArrayList<TextView> words, ArrayList<View> dividers, 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.SuggestionsView, defStyle, R.style.SuggestionsViewStyle);
- mSuggestionStripOption = a.getInt(R.styleable.SuggestionsView_suggestionStripOption, 0);
- final float alphaValidTypedWord = getPercent(a,
- R.styleable.SuggestionsView_alphaValidTypedWord, 100);
- final float alphaTypedWord = getPercent(a,
- R.styleable.SuggestionsView_alphaTypedWord, 100);
- final float alphaAutoCorrect = getPercent(a,
- R.styleable.SuggestionsView_alphaAutoCorrect, 100);
- final float alphaSuggested = getPercent(a,
- R.styleable.SuggestionsView_alphaSuggested, 100);
- mAlphaObsoleted = getPercent(a, R.styleable.SuggestionsView_alphaSuggested, 100);
- mColorValidTypedWord = applyAlpha(
- a.getColor(R.styleable.SuggestionsView_colorValidTypedWord, 0),
- alphaValidTypedWord);
- mColorTypedWord = applyAlpha(
- a.getColor(R.styleable.SuggestionsView_colorTypedWord, 0), alphaTypedWord);
- mColorAutoCorrect = applyAlpha(
- a.getColor(R.styleable.SuggestionsView_colorAutoCorrect, 0), alphaAutoCorrect);
- mColorSuggested = applyAlpha(
- a.getColor(R.styleable.SuggestionsView_colorSuggested, 0), alphaSuggested);
- mSuggestionsCountInStrip = a.getInt(
- R.styleable.SuggestionsView_suggestionsCountInStrip,
- DEFAULT_SUGGESTIONS_COUNT_IN_STRIP);
- mCenterSuggestionWeight = getPercent(a,
- R.styleable.SuggestionsView_centerSuggestionPercentile,
- DEFAULT_CENTER_SUGGESTION_PERCENTILE);
- mMaxMoreSuggestionsRow = a.getInt(
- R.styleable.SuggestionsView_maxMoreSuggestionsRow,
- DEFAULT_MAX_MORE_SUGGESTIONS_ROW);
- mMinMoreSuggestionsWidth = getRatio(a,
- R.styleable.SuggestionsView_minMoreSuggestionsWidth);
- 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(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(Resources res, float textSize, 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);
- }
-
- // Read integer value in TypedArray as percent.
- private static float getPercent(TypedArray a, int index, int defValue) {
- return a.getInt(index, defValue) / 100.0f;
- }
-
- // Read fraction value in TypedArray as float.
- private static float getRatio(TypedArray a, int index) {
- return a.getFraction(index, 1000, 1000, 1) / 1000.0f;
- }
-
- private CharSequence getStyledSuggestionWord(SuggestedWords suggestedWords, int pos) {
- final CharSequence word = suggestedWords.getWord(pos);
- final boolean isAutoCorrect = pos == 1 && suggestedWords.willAutoCorrect();
- final boolean isTypedWordValid = pos == 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 getWordPosition(int index, SuggestedWords suggestedWords) {
- // TODO: This works for 3 suggestions. Revisit this algorithm when there are 5 or more
- // suggestions.
- final int centerPos = suggestedWords.willAutoCorrect() ? 1 : 0;
- if (index == mCenterSuggestionIndex) {
- return centerPos;
- } else if (index == centerPos) {
- return mCenterSuggestionIndex;
- } else {
- return index;
- }
- }
-
- private int getSuggestionTextColor(int index, SuggestedWords suggestedWords, int pos) {
- // TODO: Need to revisit this logic with bigram suggestions
- final boolean isSuggested = (pos != 0);
-
- final int color;
- if (index == mCenterSuggestionIndex && suggestedWords.willAutoCorrect()) {
- color = mColorAutoCorrect;
- } else if (index == 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 (index == mCenterSuggestionIndex
- && AutoCorrection.shouldBlockAutoCorrectionBySafetyNet(
- suggestedWords.getWord(1).toString(), 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(SuggestedWords suggestedWords, ViewGroup stripView, ViewGroup placer,
- 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 index = 0; index < countInStrip; index++) {
- final int pos = getWordPosition(index, suggestedWords);
-
- if (index != 0) {
- final View divider = mDividers.get(pos);
- // Add divider if this isn't the left most suggestion in suggestions strip.
- addDivider(stripView, divider);
- x += divider.getMeasuredWidth();
- }
-
- final CharSequence styled = mTexts.get(pos);
- final TextView word = mWords.get(pos);
- if (index == mCenterSuggestionIndex && mMoreSuggestionsAvailable) {
- // TODO: This "more suggestions hint" should have nicely designed icon.
- word.setCompoundDrawablesWithIntrinsicBounds(
- null, null, null, mMoreSuggestionsHint);
- // HACK: To align with other TextView that has 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(index, suggestedWords, pos));
- final int width = getSuggestionWidth(index, stripWidth);
- 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);
- stripView.addView(word);
- setLayoutWeight(
- word, getSuggestionWeight(index), ViewGroup.LayoutParams.MATCH_PARENT);
- x += word.getMeasuredWidth();
-
- if (DBG && pos < suggestedWords.size()) {
- final CharSequence debugInfo = Utils.getDebugInfo(suggestedWords, pos);
- if (debugInfo != null) {
- final TextView info = mInfos.get(pos);
- 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(int index, int maxWidth) {
- final int paddings = mPadding * mSuggestionsCountInStrip;
- final int dividers = mDividerWidth * (mSuggestionsCountInStrip - 1);
- final int availableWidth = maxWidth - paddings - dividers;
- return (int)(availableWidth * getSuggestionWeight(index));
- }
-
- private float getSuggestionWeight(int index) {
- if (index == mCenterSuggestionIndex) {
- return mCenterSuggestionWeight;
- } else {
- // TODO: Revisit this for cases of 5 or more suggestions
- return (1.0f - mCenterSuggestionWeight) / (mSuggestionsCountInStrip - 1);
- }
- }
-
- private void setupTexts(SuggestedWords suggestedWords, 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(SuggestedWords suggestedWords,
- 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(CharSequence word, ViewGroup stripView,
- int stripWidth, CharSequence hintText, 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(View v) {
- return v == mWordToSaveView || v == mHintToSaveView || v == mLeftwardsArrowView;
- }
-
- private static void setLayoutWeight(View v, float weight, 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(CharSequence text, int maxWidth, 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(CharSequence text, int maxWidth,
- 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(CharSequence text, 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(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 SuggestionsView} for showing suggestions to be picked by the user.
- * @param context
- * @param attrs
- */
- public SuggestionsView(Context context, AttributeSet attrs) {
- this(context, attrs, R.attr.suggestionsViewStyle);
- }
-
- public SuggestionsView(Context context, AttributeSet attrs, 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 SuggestionsViewParams(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(Listener listener, View inputView) {
- mListener = listener;
- mKeyboardView = (KeyboardView)inputView.findViewById(R.id.keyboard_view);
- }
-
- public void setSuggestions(SuggestedWords suggestedWords) {
- if (suggestedWords == null)
- return;
-
- clear();
- mSuggestedWords = suggestedWords;
- mParams.layout(mSuggestedWords, mSuggestionsStrip, this, getWidth());
- if (ProductionFlag.IS_EXPERIMENTAL) {
- ResearchLogger.suggestionsView_setSuggestions(mSuggestedWords);
- }
- }
-
- public int setMoreSuggestionsHeight(int remainingHeight) {
- return mParams.setMoreSuggestionsHeight(remainingHeight);
- }
-
- public boolean isShowingAddToDictionaryHint() {
- return mSuggestionsStrip.getChildCount() > 0
- && mParams.isAddToDictionaryShowing(mSuggestionsStrip.getChildAt(0));
- }
-
- public void showAddToDictionaryHint(CharSequence word, 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();
- }
-
- private void hidePreview() {
- mPreviewPopup.dismiss();
- }
-
- private final KeyboardActionListener mMoreSuggestionsListener =
- new KeyboardActionListener.Adapter() {
- @Override
- public boolean onCustomRequest(int requestCode) {
- final int index = requestCode;
- final CharSequence word = mSuggestedWords.getWord(index);
- // TODO: change caller path so coordinates are passed through here
- mListener.pickSuggestionManually(index, word, NOT_A_TOUCH_COORDINATE,
- NOT_A_TOUCH_COORDINATE);
- dismissMoreSuggestions();
- return true;
- }
-
- @Override
- public void onCancelInput() {
- dismissMoreSuggestions();
- }
- };
-
- private final MoreKeysPanel.Controller mMoreSuggestionsController =
- new MoreKeysPanel.Controller() {
- @Override
- public boolean dismissMoreKeysPanel() {
- return dismissMoreSuggestions();
- }
- };
-
- private boolean dismissMoreSuggestions() {
- if (mMoreSuggestionsWindow.isShowing()) {
- mMoreSuggestionsWindow.dismiss();
- return true;
- }
- return false;
- }
-
- @Override
- public boolean onLongClick(View view) {
- return showMoreSuggestions();
- }
-
- private boolean showMoreSuggestions() {
- final SuggestionsViewParams params = mParams;
- if (params.mMoreSuggestionsAvailable) {
- 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());
- 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;
- }
- return false;
- }
-
- // 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(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(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, mLastX, mLastY);
- }
-
- @Override
- protected void onDetachedFromWindow() {
- super.onDetachedFromWindow();
- mHandler.cancelAllMessages();
- hidePreview();
- dismissMoreSuggestions();
- }
-}