84 lines
2.6 KiB
Java
84 lines
2.6 KiB
Java
/*
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* Copyright (C) 2007 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.google.android.util;
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import android.content.Context;
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import android.text.Spannable;
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import android.text.SpannableStringBuilder;
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import android.text.style.ImageSpan;
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import java.util.ArrayList;
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/**
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* Parses a text message typed by the user looking for smileys.
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*/
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public class SmileyParser extends AbstractMessageParser {
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private SmileyResources mRes;
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public SmileyParser(String text, SmileyResources res) {
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super(text,
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true, // smilies
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false, // acronyms
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false, // formatting
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false, // urls
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false, // music
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false // me text
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);
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mRes = res;
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}
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@Override
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protected Resources getResources() {
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return mRes;
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}
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/**
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* Retrieves the parsed text as a spannable string object.
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* @param context the context for fetching smiley resources.
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* @return the spannable string as CharSequence.
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*/
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public CharSequence getSpannableString(Context context) {
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SpannableStringBuilder builder = new SpannableStringBuilder();
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if (getPartCount() == 0) {
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return "";
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}
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// should have only one part since we parse smiley only
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Part part = getPart(0);
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ArrayList<Token> tokens = part.getTokens();
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int len = tokens.size();
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for (int i = 0; i < len; i++) {
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Token token = tokens.get(i);
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int start = builder.length();
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builder.append(token.getRawText());
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if (token.getType() == AbstractMessageParser.Token.Type.SMILEY) {
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int resid = mRes.getSmileyRes(token.getRawText());
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if (resid != -1) {
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builder.setSpan(new ImageSpan(context, resid),
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start,
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builder.length(),
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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}
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}
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return builder;
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}
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}
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