55 lines
1.9 KiB
C#
55 lines
1.9 KiB
C#
using Avalonia;
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using Avalonia.Input;
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using System.Linq;
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namespace LibationAvalonia
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{
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internal class AccessKeyHandlerEx : AccessKeyHandler
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{
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public KeyModifiers KeyModifier { get; }
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private readonly Key[] ActivatorKeys;
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public AccessKeyHandlerEx(KeyModifiers menuKeyModifier)
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{
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KeyModifier = menuKeyModifier;
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ActivatorKeys = menuKeyModifier switch
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{
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KeyModifiers.Alt => new[] { Key.LeftAlt, Key.RightAlt },
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KeyModifiers.Control => new[] { Key.LeftCtrl, Key.RightCtrl },
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KeyModifiers.Meta => new[] { Key.LWin, Key.RWin },
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_ => throw new System.NotSupportedException($"{nameof(KeyModifiers)}.{menuKeyModifier} is not implemented"),
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};
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}
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protected override void OnPreviewKeyDown(object sender, KeyEventArgs e)
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{
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if (ActivatorKeys.Contains(e.Key) && e.KeyModifiers.HasAllFlags(KeyModifier))
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{
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var newArgs = new KeyEventArgs { Key = Key.LeftAlt, Handled = e.Handled };
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base.OnPreviewKeyDown(sender, newArgs);
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e.Handled = newArgs.Handled;
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}
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}
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protected override void OnPreviewKeyUp(object sender, KeyEventArgs e)
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{
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if (ActivatorKeys.Contains(e.Key) && e.KeyModifiers.HasAllFlags(KeyModifier))
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{
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var newArgs = new KeyEventArgs { Key = Key.LeftAlt, Handled = e.Handled };
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base.OnPreviewKeyUp(sender, newArgs);
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e.Handled = newArgs.Handled;
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}
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}
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protected override void OnKeyDown(object sender, KeyEventArgs e)
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{
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if (e.KeyModifiers.HasAllFlags(KeyModifier))
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{
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var newArgs = new KeyEventArgs { Key = e.Key, Handled = e.Handled, KeyModifiers = KeyModifiers.Alt };
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base.OnKeyDown(sender, newArgs);
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e.Handled = newArgs.Handled;
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}
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}
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}
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}
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