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B3ni
2025-07-06 00:23:46 +02:00
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Nitrox.Launcher/Models/Design/NitroxAttached.cs Normal file
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using System;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Input;
using Avalonia.Interactivity;
using Avalonia.Layout;
using Avalonia.Reactive;
namespace Nitrox.Launcher.Models.Design;
/// <summary>
/// Container class for our attached properties.
/// </summary>
public class NitroxAttached : AvaloniaObject
{
public static readonly AttachedProperty<bool> SelectedProperty = AvaloniaProperty.RegisterAttached<NitroxAttached, Interactive, bool>("Selected");
public static readonly AttachedProperty<bool> AutoScrollToHomeProperty = AvaloniaProperty.RegisterAttached<NitroxAttached, ScrollViewer, bool>("AutoScrollToHome");
public static readonly AttachedProperty<Orientation> PrimaryScrollWheelDirectionProperty = AvaloniaProperty.RegisterAttached<NitroxAttached, ScrollViewer, Orientation>("PrimaryScrollWheelDirection", Orientation.Vertical);
public static readonly AttachedProperty<bool> IsNumericInputProperty = AvaloniaProperty.RegisterAttached<NitroxAttached, InputElement, bool>("IsNumericInput");
public static readonly AttachedProperty<bool> HasUserInteractedProperty = AvaloniaProperty.RegisterAttached<NitroxAttached, InputElement, bool>("HasUserInteracted");
public static readonly AttachedProperty<bool> UseCustomTitleBarProperty = AvaloniaProperty.RegisterAttached<NitroxAttached, Window, bool>("UseCustomTitleBar", true);
internal static readonly AsyncCommandButtonTagger AsyncCommandButtonTagger;
static NitroxAttached()
{
InputElement.LostFocusEvent.Raised.Subscribe(new AnonymousObserver<(object, RoutedEventArgs)>(HasUserInteractedOnNext));
InputElement.TextInputEvent.Raised.Subscribe(new AnonymousObserver<(object, RoutedEventArgs)>(HasUserInteractedOnNext));
AsyncCommandButtonTagger = new AsyncCommandButtonTagger("busy");
void HasUserInteractedOnNext((object Sender, RoutedEventArgs EventArgs) args)
{
if (args.Sender is InputElement element)
{
SetHasUserInteracted(element, true);
}
}
}
public static bool GetSelected(AvaloniaObject element) => element.GetValue(SelectedProperty);
public static void SetSelected(AvaloniaObject obj, bool value) => obj.SetValue(SelectedProperty, value);
public static void SetAutoScrollToHome(AvaloniaObject obj, bool value)
{
static void VisualAttached(object sender, VisualTreeAttachmentEventArgs e) => (sender as ScrollViewer)?.ScrollToHome();
obj.SetValue(AutoScrollToHomeProperty, value);
if (obj is not Visual visual)
{
return;
}
if (value)
{
visual.AttachedToVisualTree += VisualAttached;
}
else
{
visual.AttachedToVisualTree -= VisualAttached;
}
}
public static bool GetAutoScrollToHome(AvaloniaObject element) => element.GetValue(AutoScrollToHomeProperty);
public static Orientation GetPrimaryScrollWheelDirection(AvaloniaObject obj) => obj.GetValue(PrimaryScrollWheelDirectionProperty);
/// <summary>
/// Changes scroll wheel input to move scroll viewer left and right if set to <see cref="Orientation.Horizontal"/>.
/// </summary>
public static void SetPrimaryScrollWheelDirection(AvaloniaObject obj, Orientation orientation)
{
static void RotatedOrientationWheelHandler(object sender, PointerWheelEventArgs e)
{
ScrollViewer scrollViewer = sender as ScrollViewer;
if (scrollViewer == null)
{
return;
}
if (GetPrimaryScrollWheelDirection(scrollViewer) == Orientation.Vertical)
{
return;
}
if (e.Delta.Y < 0)
{
for (int i = 0; i <= -e.Delta.Y; i++)
{
scrollViewer.LineRight();
}
}
else
{
for (int i = 0; i <= e.Delta.Y; i++)
{
scrollViewer.LineLeft();
}
}
e.Handled = true;
}
obj.SetValue(PrimaryScrollWheelDirectionProperty, orientation);
if (obj is not ScrollViewer scrollViewer)
{
return;
}
switch (orientation)
{
case Orientation.Horizontal:
scrollViewer.PointerWheelChanged += RotatedOrientationWheelHandler;
break;
case Orientation.Vertical:
scrollViewer.PointerWheelChanged -= RotatedOrientationWheelHandler;
break;
}
}
public static void SetIsNumericInput(AvaloniaObject obj, bool value)
{
static void OnKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
{
case Key.Up:
case Key.Down:
if (sender is not TextBox textBox)
{
throw new NotSupportedException($"{sender.GetType()} is not supported by property {nameof(IsNumericInputProperty)}");
}
string previousText = textBox.Text;
if (int.TryParse(textBox.Text, out int val))
{
val += e.Key == Key.Up ? 1 : -1;
}
textBox.Text = Math.Clamp(val, 0, int.MaxValue).ToString();
if (textBox.Text.Length > textBox.MaxLength)
{
textBox.Text = previousText;
}
break;
}
}
if (obj is not InputElement inputElement)
{
return;
}
if (value)
{
inputElement.KeyDown += OnKeyDown;
}
else
{
inputElement.KeyDown -= OnKeyDown;
}
}
public static bool GetHasUserInteracted(InputElement input) => input.GetValue(HasUserInteractedProperty);
public static void SetHasUserInteracted(InputElement input, bool value) => input.SetValue(HasUserInteractedProperty, value);
public static bool GetUseCustomTitleBar(Window window) => window.GetValue(UseCustomTitleBarProperty);
public static void SetUseCustomTitleBar(Window window, bool value) => window.SetValue(UseCustomTitleBarProperty, value);
}