117 lines
4.0 KiB
C#
117 lines
4.0 KiB
C#
// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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using Microsoft.Maui.Handlers;
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using Microsoft.Maui.Graphics;
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using SkiaSharp;
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namespace Microsoft.Maui.Platform.Linux.Handlers;
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/// <summary>
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/// Handler for CheckBox on Linux using Skia rendering.
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/// Maps ICheckBox interface to SkiaCheckBox platform view.
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/// </summary>
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public partial class CheckBoxHandler : ViewHandler<ICheckBox, SkiaCheckBox>
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{
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public static IPropertyMapper<ICheckBox, CheckBoxHandler> Mapper = new PropertyMapper<ICheckBox, CheckBoxHandler>(ViewHandler.ViewMapper)
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{
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[nameof(ICheckBox.IsChecked)] = MapIsChecked,
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[nameof(ICheckBox.Foreground)] = MapForeground,
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[nameof(IView.Background)] = MapBackground,
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[nameof(IView.VerticalLayoutAlignment)] = MapVerticalLayoutAlignment,
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[nameof(IView.HorizontalLayoutAlignment)] = MapHorizontalLayoutAlignment,
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};
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public static CommandMapper<ICheckBox, CheckBoxHandler> CommandMapper = new(ViewHandler.ViewCommandMapper)
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{
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};
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public CheckBoxHandler() : base(Mapper, CommandMapper)
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{
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}
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public CheckBoxHandler(IPropertyMapper? mapper, CommandMapper? commandMapper = null)
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: base(mapper ?? Mapper, commandMapper ?? CommandMapper)
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{
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}
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protected override SkiaCheckBox CreatePlatformView()
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{
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return new SkiaCheckBox();
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}
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protected override void ConnectHandler(SkiaCheckBox platformView)
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{
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base.ConnectHandler(platformView);
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platformView.CheckedChanged += OnCheckedChanged;
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}
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protected override void DisconnectHandler(SkiaCheckBox platformView)
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{
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platformView.CheckedChanged -= OnCheckedChanged;
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base.DisconnectHandler(platformView);
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}
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private void OnCheckedChanged(object? sender, Platform.CheckedChangedEventArgs e)
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{
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if (VirtualView is not null && VirtualView.IsChecked != e.IsChecked)
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{
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VirtualView.IsChecked = e.IsChecked;
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}
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}
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public static void MapIsChecked(CheckBoxHandler handler, ICheckBox checkBox)
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{
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if (handler.PlatformView is null) return;
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handler.PlatformView.IsChecked = checkBox.IsChecked;
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}
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public static void MapForeground(CheckBoxHandler handler, ICheckBox checkBox)
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{
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if (handler.PlatformView is null) return;
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if (checkBox.Foreground is SolidPaint solidPaint && solidPaint.Color is not null)
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{
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handler.PlatformView.CheckColor = solidPaint.Color.ToSKColor();
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}
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}
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public static void MapBackground(CheckBoxHandler handler, ICheckBox checkBox)
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{
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if (handler.PlatformView is null) return;
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if (checkBox.Background is SolidPaint solidPaint && solidPaint.Color is not null)
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{
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handler.PlatformView.BackgroundColor = solidPaint.Color.ToSKColor();
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}
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}
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public static void MapVerticalLayoutAlignment(CheckBoxHandler handler, ICheckBox checkBox)
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{
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if (handler.PlatformView is null) return;
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handler.PlatformView.VerticalOptions = checkBox.VerticalLayoutAlignment switch
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{
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Primitives.LayoutAlignment.Start => LayoutOptions.Start,
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Primitives.LayoutAlignment.Center => LayoutOptions.Center,
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Primitives.LayoutAlignment.End => LayoutOptions.End,
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Primitives.LayoutAlignment.Fill => LayoutOptions.Fill,
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_ => LayoutOptions.Fill
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};
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}
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public static void MapHorizontalLayoutAlignment(CheckBoxHandler handler, ICheckBox checkBox)
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{
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if (handler.PlatformView is null) return;
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handler.PlatformView.HorizontalOptions = checkBox.HorizontalLayoutAlignment switch
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{
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Primitives.LayoutAlignment.Start => LayoutOptions.Start,
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Primitives.LayoutAlignment.Center => LayoutOptions.Center,
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Primitives.LayoutAlignment.End => LayoutOptions.End,
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Primitives.LayoutAlignment.Fill => LayoutOptions.Fill,
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_ => LayoutOptions.Start
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};
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}
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}
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