maui-linux/Handlers/BorderHandler.cs

105 lines
3.3 KiB
C#

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using Microsoft.Maui.Handlers;
using Microsoft.Maui.Graphics;
using Microsoft.Maui.Controls;
using Microsoft.Maui.Platform;
using SkiaSharp;
namespace Microsoft.Maui.Platform.Linux.Handlers;
/// <summary>
/// Handler for Border on Linux using Skia rendering.
/// </summary>
public partial class BorderHandler : ViewHandler<IBorderView, SkiaBorder>
{
public static IPropertyMapper<IBorderView, BorderHandler> Mapper =
new PropertyMapper<IBorderView, BorderHandler>(ViewHandler.ViewMapper)
{
[nameof(IBorderView.Content)] = MapContent,
[nameof(IBorderStroke.Stroke)] = MapStroke,
[nameof(IBorderStroke.StrokeThickness)] = MapStrokeThickness,
[nameof(IView.Background)] = MapBackground,
[nameof(IPadding.Padding)] = MapPadding,
};
public static CommandMapper<IBorderView, BorderHandler> CommandMapper =
new(ViewHandler.ViewCommandMapper)
{
};
public BorderHandler() : base(Mapper, CommandMapper)
{
}
public BorderHandler(IPropertyMapper? mapper, CommandMapper? commandMapper = null)
: base(mapper ?? Mapper, commandMapper ?? CommandMapper)
{
}
protected override SkiaBorder CreatePlatformView()
{
return new SkiaBorder();
}
protected override void ConnectHandler(SkiaBorder platformView)
{
base.ConnectHandler(platformView);
}
protected override void DisconnectHandler(SkiaBorder platformView)
{
base.DisconnectHandler(platformView);
}
public static void MapContent(BorderHandler handler, IBorderView border)
{
if (handler.PlatformView is null) return;
handler.PlatformView.ClearChildren();
if (border.PresentedContent?.Handler?.PlatformView is SkiaView skiaContent)
{
handler.PlatformView.AddChild(skiaContent);
}
}
public static void MapStroke(BorderHandler handler, IBorderView border)
{
if (handler.PlatformView is null) return;
if (border.Stroke is SolidPaint solidPaint && solidPaint.Color is not null)
{
handler.PlatformView.Stroke = solidPaint.Color.ToSKColor();
}
}
public static void MapStrokeThickness(BorderHandler handler, IBorderView border)
{
if (handler.PlatformView is null) return;
handler.PlatformView.StrokeThickness = (float)border.StrokeThickness;
}
public static void MapBackground(BorderHandler handler, IBorderView border)
{
if (handler.PlatformView is null) return;
if (border.Background is SolidPaint solidPaint && solidPaint.Color is not null)
{
handler.PlatformView.BackgroundColor = solidPaint.Color.ToSKColor();
}
}
public static void MapPadding(BorderHandler handler, IBorderView border)
{
if (handler.PlatformView is null) return;
var padding = border.Padding;
handler.PlatformView.PaddingLeft = (float)padding.Left;
handler.PlatformView.PaddingTop = (float)padding.Top;
handler.PlatformView.PaddingRight = (float)padding.Right;
handler.PlatformView.PaddingBottom = (float)padding.Bottom;
}
}