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fix toots showing too much whitespace (#1761)

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* fix toots showing too much whitespace

* use isWhitespace extension function
This commit is contained in:
Konrad Pozniak 2020-04-20 23:06:39 +02:00 • committed by GitHub
commit 89efd67015
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5 changed files with 53 additions and 63 deletions
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59
app/src/main/java/com/keylesspalace/tusky/json/SpannedTypeAdapter.java
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@ -1,59 +0,0 @@
/* Copyright 2017 Andrew Dawson
*
* This file is a part of Tusky.
*
* This program 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.json;
import android.text.Spanned;
import android.text.SpannedString;
import androidx.core.text.HtmlCompat;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import java.lang.reflect.Type;
public class SpannedTypeAdapter implements JsonDeserializer<Spanned>, JsonSerializer<Spanned> {
@Override
public Spanned deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
String string = json.getAsString();
if (string != null) {
/* 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(HtmlCompat.fromHtml(string, HtmlCompat.FROM_HTML_MODE_LEGACY));
} else {
return new SpannedString("");
}
}
@Override
public JsonElement serialize(Spanned src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(HtmlCompat.toHtml(src, HtmlCompat.TO_HTML_PARAGRAPH_LINES_INDIVIDUAL));
}
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);
}
}

37
app/src/main/java/com/keylesspalace/tusky/json/SpannedTypeAdapter.kt Normal file
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@ -0,0 +1,37 @@
/* Copyright 2020 Tusky Contributors
*
* This file is a part of Tusky.
*
* This program 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.json
import android.text.Spanned
import android.text.SpannedString
import androidx.core.text.HtmlCompat
import androidx.core.text.parseAsHtml
import com.google.gson.*
import com.keylesspalace.tusky.util.trimTrailingWhitespace
import java.lang.reflect.Type
class SpannedTypeAdapter : JsonDeserializer<Spanned>, JsonSerializer<Spanned?> {
@Throws(JsonParseException::class)
override fun deserialize(json: JsonElement, typeOfT: Type, context: JsonDeserializationContext): Spanned {
/* Html.fromHtml returns trailing whitespace if the html ends in a </p> tag, which
* all status contents do, so it should be trimmed. */
return json.asString?.parseAsHtml()?.trimTrailingWhitespace() ?: SpannedString("")
}
override fun serialize(src: Spanned?, typeOfSrc: Type, context: JsonSerializationContext): JsonElement {
return JsonPrimitive(HtmlCompat.toHtml(src!!, HtmlCompat.TO_HTML_PARAGRAPH_LINES_INDIVIDUAL))
}
}