e5db3871b1
Bug: 5574747 This bug was introduced by I5e40edf6f790c078c4a05d Change-Id: I5b0f51e1f5e8a12d786657167082bc604089505e
128 lines
5.6 KiB
Java
128 lines
5.6 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.compat;
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import com.android.inputmethod.latin.LatinImeLogger;
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import com.android.inputmethod.latin.SuggestedWords;
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import com.android.inputmethod.latin.SuggestionSpanPickedNotificationReceiver;
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import android.content.Context;
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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.TextUtils;
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import android.util.Log;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Field;
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import java.util.ArrayList;
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import java.util.Locale;
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public class SuggestionSpanUtils {
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private static final String TAG = SuggestionSpanUtils.class.getSimpleName();
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// TODO: Use reflection to get field values
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public static final String ACTION_SUGGESTION_PICKED =
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"android.text.style.SUGGESTION_PICKED";
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public static final String SUGGESTION_SPAN_PICKED_AFTER = "after";
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public static final String SUGGESTION_SPAN_PICKED_BEFORE = "before";
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public static final String SUGGESTION_SPAN_PICKED_HASHCODE = "hashcode";
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public static final boolean SUGGESTION_SPAN_IS_SUPPORTED;
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private static final Class<?> CLASS_SuggestionSpan = CompatUtils
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.getClass("android.text.style.SuggestionSpan");
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private static final Class<?>[] INPUT_TYPE_SuggestionSpan = new Class<?>[] {
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Context.class, Locale.class, String[].class, int.class, Class.class };
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private static final Constructor<?> CONSTRUCTOR_SuggestionSpan = CompatUtils
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.getConstructor(CLASS_SuggestionSpan, INPUT_TYPE_SuggestionSpan);
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public static final Field FIELD_FLAG_AUTO_CORRECTION
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= CompatUtils.getField(CLASS_SuggestionSpan, "FLAG_AUTO_CORRECTION");
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public static final Field FIELD_SUGGESTION_MAX_SIZE
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= CompatUtils.getField(CLASS_SuggestionSpan, "SUGGESTIONS_MAX_SIZE");
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public static final Integer OBJ_FLAG_AUTO_CORRECTION = (Integer) CompatUtils
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.getFieldValue(null, null, FIELD_FLAG_AUTO_CORRECTION);;
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public static final Integer OBJ_SUGGESTION_MAX_SIZE = (Integer) CompatUtils
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.getFieldValue(null, null, FIELD_SUGGESTION_MAX_SIZE);;
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static {
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SUGGESTION_SPAN_IS_SUPPORTED =
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CLASS_SuggestionSpan != null && CONSTRUCTOR_SuggestionSpan != null;
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if (LatinImeLogger.sDBG) {
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if (SUGGESTION_SPAN_IS_SUPPORTED
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&& (OBJ_FLAG_AUTO_CORRECTION == null || OBJ_SUGGESTION_MAX_SIZE == null)) {
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throw new RuntimeException("Field is accidentially null.");
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}
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}
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}
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public static CharSequence getTextWithAutoCorrectionIndicatorUnderline(
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Context context, CharSequence text) {
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if (TextUtils.isEmpty(text) || CONSTRUCTOR_SuggestionSpan == null
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|| OBJ_FLAG_AUTO_CORRECTION == null || OBJ_SUGGESTION_MAX_SIZE == null) {
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return text;
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}
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final Spannable spannable = text instanceof Spannable
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? (Spannable) text : new SpannableString(text);
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final Object[] args =
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{ context, null, new String[] {}, (int)OBJ_FLAG_AUTO_CORRECTION,
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(Class<?>) SuggestionSpanPickedNotificationReceiver.class };
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final Object ss = CompatUtils.newInstance(CONSTRUCTOR_SuggestionSpan, args);
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if (ss == null) {
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Log.w(TAG, "Suggestion span was not created.");
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return text;
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}
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spannable.setSpan(ss, 0, text.length(),
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Spanned.SPAN_EXCLUSIVE_EXCLUSIVE | Spanned.SPAN_COMPOSING);
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return spannable;
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}
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public static CharSequence getTextWithSuggestionSpan(Context context,
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CharSequence pickedWord, SuggestedWords suggestedWords) {
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if (TextUtils.isEmpty(pickedWord) || CONSTRUCTOR_SuggestionSpan == null
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|| suggestedWords == null || suggestedWords.size() == 0
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|| suggestedWords.getInfo(0).isObsoleteSuggestedWord()
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|| OBJ_SUGGESTION_MAX_SIZE == null) {
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return pickedWord;
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}
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final Spannable spannable;
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if (pickedWord instanceof Spannable) {
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spannable = (Spannable) pickedWord;
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} else {
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spannable = new SpannableString(pickedWord);
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}
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final ArrayList<String> suggestionsList = new ArrayList<String>();
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for (int i = 0; i < suggestedWords.size(); ++i) {
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if (suggestionsList.size() >= OBJ_SUGGESTION_MAX_SIZE) {
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break;
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}
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final CharSequence word = suggestedWords.getWord(i);
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if (!TextUtils.equals(pickedWord, word)) {
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suggestionsList.add(word.toString());
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}
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}
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final Object[] args =
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{ context, null, suggestionsList.toArray(new String[suggestionsList.size()]), 0,
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(Class<?>) SuggestionSpanPickedNotificationReceiver.class };
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final Object ss = CompatUtils.newInstance(CONSTRUCTOR_SuggestionSpan, args);
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if (ss == null) {
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return pickedWord;
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}
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spannable.setSpan(ss, 0, pickedWord.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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return spannable;
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}
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}
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