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Fix discord arbitrarily refusing to work on "too short" strings
Closes https://github.com/ppy/osu/issues/28192.
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@ -164,8 +164,8 @@ namespace osu.Desktop
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// user activity
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if (activity.Value != null)
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{
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presence.State = truncate(activity.Value.GetStatus(hideIdentifiableInformation));
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presence.Details = truncate(activity.Value.GetDetails(hideIdentifiableInformation) ?? string.Empty);
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presence.State = clampLength(activity.Value.GetStatus(hideIdentifiableInformation));
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presence.Details = clampLength(activity.Value.GetDetails(hideIdentifiableInformation) ?? string.Empty);
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if (getBeatmapID(activity.Value) is int beatmapId && beatmapId > 0)
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{
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@ -271,8 +271,15 @@ namespace osu.Desktop
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private static readonly int ellipsis_length = Encoding.UTF8.GetByteCount(new[] { '…' });
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private static string truncate(string str)
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private static string clampLength(string str)
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{
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// For whatever reason, discord decides that strings shorter than 2 characters cannot possibly be valid input, because... reasons?
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// And yes, that is two *characters*, or *codepoints*, not *bytes* as further down below (as determined by empirical testing).
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// That seems very questionable, and isn't even documented anywhere. So to *make it* accept such valid input,
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// just tack on enough of U+200B ZERO WIDTH SPACEs at the end.
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if (str.Length < 2)
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return str.PadRight(2, '\u200B');
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if (Encoding.UTF8.GetByteCount(str) <= 128)
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return str;
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