55 lines
1.9 KiB
Java
55 lines
1.9 KiB
Java
/* Copyright 2017 Andrew Dawson
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*
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* This file is a part of Tusky.
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with Tusky; if not,
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* see <http://www.gnu.org/licenses>. */
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package com.keylesspalace.tusky;
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import android.os.Build;
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import android.text.Html;
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import android.text.Spanned;
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public class HtmlUtils {
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private static CharSequence trimTrailingWhitespace(CharSequence s) {
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int i = s.length();
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do {
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i--;
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} while (i >= 0 && Character.isWhitespace(s.charAt(i)));
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return s.subSequence(0, i + 1);
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}
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@SuppressWarnings("deprecation")
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public static Spanned fromHtml(String html) {
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Spanned result;
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
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result = Html.fromHtml(html, Html.FROM_HTML_MODE_LEGACY);
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} else {
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result = Html.fromHtml(html);
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}
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/* Html.fromHtml returns trailing whitespace if the html ends in a </p> tag, which
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* all status contents do, so it should be trimmed. */
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return (Spanned) trimTrailingWhitespace(result);
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}
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@SuppressWarnings("deprecation")
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public static String toHtml(Spanned text) {
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String result;
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
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result = Html.toHtml(text, Html.TO_HTML_PARAGRAPH_LINES_CONSECUTIVE);
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} else {
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result = Html.toHtml(text);
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}
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return result;
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}
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}
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