Libation/Source/LibationAvalonia/Dialogs/DescriptionDisplayDialog.axaml.cs

using Avalonia;
using Avalonia.Controls;
using System;
using System.Linq;

namespace LibationAvalonia.Dialogs;

public partial class DescriptionDisplayDialog : Window
{
	public Point SpawnLocation { get; set; }
	public string? DescriptionText { get; init; }
	public DescriptionDisplayDialog()
	{
		InitializeComponent();

		DescriptionTextBox = this.FindControl<TextBox>(nameof(DescriptionTextBox));
		this.Activated += DescriptionDisplay_Activated;
		Opened += DescriptionDisplay_Opened;
	}

	private void DescriptionDisplay_Opened(object? sender, EventArgs e)
	{
		DescriptionTextBox.Focus();
	}

	private void DescriptionDisplay_Activated(object? sender, EventArgs e)
	{
		DataContext = this;
		var workingHeight = (Screens.ScreenFromTopLevel(this) ?? Screens.Primary ?? Screens.All.FirstOrDefault())?.WorkingArea.Height ?? 1080;
		DescriptionTextBox.Measure(new Size(DescriptionTextBox.MinWidth, workingHeight * 0.8));

		this.Width = DescriptionTextBox.DesiredSize.Width;
		this.Height = DescriptionTextBox.DesiredSize.Height;
		this.MinWidth = this.Width;
		this.MaxWidth = this.Width;
		this.MinHeight = this.Height;
		this.MaxHeight = this.Height;

		DescriptionTextBox.Width = this.Width;
		DescriptionTextBox.Height = this.Height;
		DescriptionTextBox.MinWidth = this.Width;
		DescriptionTextBox.MaxWidth = this.Width;
		DescriptionTextBox.MinHeight = this.Height;
		DescriptionTextBox.MaxHeight = this.Height;

		this.Position = new PixelPoint((int)SpawnLocation.X, (int)Math.Min(SpawnLocation.Y, workingHeight - DescriptionTextBox.DesiredSize.Height));
	}

	private void DescriptionTextBox_LostFocus(object sender, Avalonia.Interactivity.RoutedEventArgs e)
	{
		Close();
	}
}