31 lines
1.3 KiB
C#
31 lines
1.3 KiB
C#
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using System.Globalization;
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using System.Windows.Data;
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namespace TeamsISO.App.Converters;
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/// <summary>
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/// Converts a display name to up to two uppercase initials for an avatar bubble.
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/// "Brendon Power" → "BP". "(Local)" → "L". Falls back to "·" for empty inputs.
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/// </summary>
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public sealed class InitialsConverter : IValueConverter
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{
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public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
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{
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var s = value as string;
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if (string.IsNullOrWhiteSpace(s)) return "·";
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// Strip surrounding parens / punctuation that would otherwise become
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// useless initials (e.g. "(Local)" should yield "L", not "(").
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var cleaned = new string(s.Where(c => char.IsLetterOrDigit(c) || char.IsWhiteSpace(c)).ToArray()).Trim();
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if (cleaned.Length == 0) return "·";
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var parts = cleaned.Split(' ', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
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if (parts.Length == 0) return "·";
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if (parts.Length == 1) return char.ToUpperInvariant(parts[0][0]).ToString();
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return $"{char.ToUpperInvariant(parts[0][0])}{char.ToUpperInvariant(parts[^1][0])}";
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}
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public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
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=> throw new NotSupportedException();
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}
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