marketally.mopups/Mopups/Mopups.Maui/Pages/PopupPage.cs

using AsyncAwaitBestPractices;
using Mopups.Services;

namespace Mopups.Pages;

public partial class PopupPage : ContentPage
{
    public event EventHandler? BackgroundClicked;

    public static readonly BindableProperty CloseWhenBackgroundIsClickedProperty = BindableProperty.Create(nameof(CloseWhenBackgroundIsClicked), typeof(bool), typeof(PopupPage), true);

    public bool CloseWhenBackgroundIsClicked
    {
        get { return (bool)GetValue(CloseWhenBackgroundIsClickedProperty); }
        set { SetValue(CloseWhenBackgroundIsClickedProperty, value); }
    }

    public static readonly BindableProperty BackgroundInputTransparentProperty = BindableProperty.Create(nameof(BackgroundInputTransparent), typeof(bool), typeof(PopupPage), false);

    public bool BackgroundInputTransparent
    {
        get { return (bool)GetValue(BackgroundInputTransparentProperty); }
        set { SetValue(BackgroundInputTransparentProperty, value); }
    }

    public static readonly BindableProperty HasKeyboardOffsetProperty = BindableProperty.Create(nameof(HasKeyboardOffset), typeof(bool), typeof(PopupPage), true);

    public bool HasKeyboardOffset
    {
        get { return (bool)GetValue(HasKeyboardOffsetProperty); }
        set { SetValue(HasKeyboardOffsetProperty, value); }
    }

    public static readonly BindableProperty KeyboardOffsetProperty = BindableProperty.Create(nameof(KeyboardOffset), typeof(double), typeof(PopupPage), 0d, BindingMode.OneWayToSource);

    public double KeyboardOffset
    {
        get { return (double)GetValue(KeyboardOffsetProperty); }
        private set { SetValue(KeyboardOffsetProperty, value); }
    }

    public PopupPage()
    {
        BackgroundColor = Color.FromArgb("#80000000");
    }

    protected override bool OnBackButtonPressed()
    {
        return false;
    }

    protected override void LayoutChildren(double x, double y, double width, double height)
    {
        height -= KeyboardOffset;
        base.LayoutChildren(x, y, width, height);
    }

    protected virtual bool OnBackgroundClicked()
    {
        return CloseWhenBackgroundIsClicked;
    }

    internal void SendBackgroundClick()
    {
        BackgroundClicked?.Invoke(this, EventArgs.Empty);
        if (OnBackgroundClicked())
        {
            MopupService.Instance.RemovePageAsync(this).SafeFireAndForget();
        }
    }
}