maui-linux/Handlers/FlyoutPageHandler.cs

92 lines
3.1 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 SkiaSharp;
namespace Microsoft.Maui.Platform.Linux.Handlers;
/// <summary>
/// Handler for FlyoutPage on Linux using Skia rendering.
/// Maps IFlyoutView interface to SkiaFlyoutPage platform view.
/// </summary>
public partial class FlyoutPageHandler : ViewHandler<IFlyoutView, SkiaFlyoutPage>
{
public static IPropertyMapper<IFlyoutView, FlyoutPageHandler> Mapper = new PropertyMapper<IFlyoutView, FlyoutPageHandler>(ViewHandler.ViewMapper)
{
[nameof(IFlyoutView.IsPresented)] = MapIsPresented,
[nameof(IFlyoutView.FlyoutWidth)] = MapFlyoutWidth,
[nameof(IFlyoutView.IsGestureEnabled)] = MapIsGestureEnabled,
[nameof(IFlyoutView.FlyoutBehavior)] = MapFlyoutBehavior,
};
public static CommandMapper<IFlyoutView, FlyoutPageHandler> CommandMapper = new(ViewHandler.ViewCommandMapper)
{
};
public FlyoutPageHandler() : base(Mapper, CommandMapper)
{
}
public FlyoutPageHandler(IPropertyMapper? mapper, CommandMapper? commandMapper = null)
: base(mapper ?? Mapper, commandMapper ?? CommandMapper)
{
}
protected override SkiaFlyoutPage CreatePlatformView()
{
return new SkiaFlyoutPage();
}
protected override void ConnectHandler(SkiaFlyoutPage platformView)
{
base.ConnectHandler(platformView);
platformView.IsPresentedChanged += OnIsPresentedChanged;
}
protected override void DisconnectHandler(SkiaFlyoutPage platformView)
{
platformView.IsPresentedChanged -= OnIsPresentedChanged;
platformView.Flyout = null;
platformView.Detail = null;
base.DisconnectHandler(platformView);
}
private void OnIsPresentedChanged(object? sender, EventArgs e)
{
// Sync back to the virtual view
}
public static void MapIsPresented(FlyoutPageHandler handler, IFlyoutView flyoutView)
{
if (handler.PlatformView is null) return;
handler.PlatformView.IsPresented = flyoutView.IsPresented;
}
public static void MapFlyoutWidth(FlyoutPageHandler handler, IFlyoutView flyoutView)
{
if (handler.PlatformView is null) return;
handler.PlatformView.FlyoutWidth = (float)flyoutView.FlyoutWidth;
}
public static void MapIsGestureEnabled(FlyoutPageHandler handler, IFlyoutView flyoutView)
{
if (handler.PlatformView is null) return;
handler.PlatformView.GestureEnabled = flyoutView.IsGestureEnabled;
}
public static void MapFlyoutBehavior(FlyoutPageHandler handler, IFlyoutView flyoutView)
{
if (handler.PlatformView is null) return;
handler.PlatformView.FlyoutLayoutBehavior = flyoutView.FlyoutBehavior switch
{
Microsoft.Maui.FlyoutBehavior.Disabled => FlyoutLayoutBehavior.Default,
Microsoft.Maui.FlyoutBehavior.Flyout => FlyoutLayoutBehavior.Popover,
Microsoft.Maui.FlyoutBehavior.Locked => FlyoutLayoutBehavior.Split,
_ => FlyoutLayoutBehavior.Default
};
}
}