chinwag-android/app/src/main/java/com/keylesspalace/tusky/HtmlUtils.java

54 lines
1.9 KiB
Java

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