SafeArea.cs

using System;
using Microsoft.Maui.Controls;
using NeuroAccessMaui.Services;
using Waher.Content.Html.Elements;
 
namespace NeuroAccessMaui.UI
{
    public enum SafeAreaMode
    {
        Default,
        Ignore,
        Custom,
        Top,
        Bottom,
        TopAndBottom,
        Right,
        Left,
        RightAndLeft,
        All
    }
 
    public static class SafeArea
    {
        public static readonly BindableProperty ModeProperty = BindableProperty.CreateAttached(
            "Mode",
            typeof(SafeAreaMode),
            typeof(SafeArea),
            SafeAreaMode.Default);
 
        public static readonly BindableProperty CustomPaddingProperty = BindableProperty.CreateAttached(
            "CustomPadding",
            typeof(Thickness),
            typeof(SafeArea),
            new Thickness(0));
 
        public static SafeAreaMode GetMode(BindableObject view)
        {
            ArgumentNullException.ThrowIfNull(view);
            return (SafeAreaMode)view.GetValue(ModeProperty);
        }
 
        public static void SetMode(BindableObject view, SafeAreaMode value)
        {
            ArgumentNullException.ThrowIfNull(view);
            view.SetValue(ModeProperty, value);
        }
 
        public static Thickness GetCustomPadding(BindableObject view)
        {
            ArgumentNullException.ThrowIfNull(view);
            return (Thickness)view.GetValue(CustomPaddingProperty);
        }
 
        public static void SetCustomPadding(BindableObject view, Thickness value)
        {
            ArgumentNullException.ThrowIfNull(view);
            view.SetValue(CustomPaddingProperty, value);
        }
 
        public static Thickness ResolveInsetsFor(BindableObject screen)
        {
            ArgumentNullException.ThrowIfNull(screen);
 
            SafeAreaMode Mode = GetMode(screen);
 
            if (Mode == SafeAreaMode.Ignore)
                return new Thickness(0);
 
            if (Mode == SafeAreaMode.Custom)
                return GetCustomPadding(screen);
 
            Thickness Insets = ServiceRef.PlatformSpecific.GetInsets();
 
            return Mode switch
            {
                SafeAreaMode.Top => new Thickness(0, Insets.Top, 0, 0),
                SafeAreaMode.Bottom => new Thickness(0, 0, 0, Insets.Bottom),
                SafeAreaMode.TopAndBottom => new Thickness(0, Insets.Top, 0, Insets.Bottom),
                SafeAreaMode.Right => new Thickness(0, 0, Insets.Right, 0),
                SafeAreaMode.Left => new Thickness(Insets.Left, 0, 0, 0),
                SafeAreaMode.RightAndLeft => new Thickness(Insets.Left, 0, Insets.Right, 0),
                SafeAreaMode.All => Insets,
                _ => Insets
            };
        }
 
        public static Thickness ResolveInsetsForMode(SafeAreaMode mode)
        {
 
            if (mode == SafeAreaMode.Ignore)
                return new Thickness(0);
 
            if (mode == SafeAreaMode.Custom)
                return new Thickness(0);
 
            Thickness Insets = ServiceRef.PlatformSpecific.GetInsets();
 
            return mode switch
            {
                SafeAreaMode.Top => new Thickness(0, Insets.Top, 0, 0),
                SafeAreaMode.Bottom => new Thickness(0, 0, 0, Insets.Bottom),
                SafeAreaMode.TopAndBottom => new Thickness(0, Insets.Top, 0, Insets.Bottom),
                SafeAreaMode.Right => new Thickness(0, 0, Insets.Right, 0),
                SafeAreaMode.Left => new Thickness(Insets.Left, 0, 0, 0),
                SafeAreaMode.RightAndLeft => new Thickness(Insets.Left, 0, Insets.Right, 0),
                SafeAreaMode.All => Insets,
                _ => Insets
            };
        }
    }
}