CollectionView completed

2026-01-17 01:18:57 +00:00
parent b1749b1347
commit 868ce1fcae
4 changed files with 789 additions and 0 deletions
--- a/Handlers/SwipeViewHandler.cs
+++ b/Handlers/SwipeViewHandler.cs
@@ -0,0 +1,226 @@
+// 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 Microsoft.Maui.Platform.Linux.Hosting;
+using SkiaSharp;
+
+namespace Microsoft.Maui.Platform.Linux.Handlers;
+
+/// <summary>
+/// Handler for SwipeView on Linux using Skia rendering.
+/// Maps SwipeView to SkiaSwipeView platform view.
+/// </summary>
+public partial class SwipeViewHandler : ViewHandler<SwipeView, SkiaSwipeView>
+{
+    public static IPropertyMapper<SwipeView, SwipeViewHandler> Mapper =
+        new PropertyMapper<SwipeView, SwipeViewHandler>(ViewHandler.ViewMapper)
+        {
+            [nameof(SwipeView.Content)] = MapContent,
+            [nameof(SwipeView.LeftItems)] = MapLeftItems,
+            [nameof(SwipeView.RightItems)] = MapRightItems,
+            [nameof(SwipeView.TopItems)] = MapTopItems,
+            [nameof(SwipeView.BottomItems)] = MapBottomItems,
+            [nameof(SwipeView.Threshold)] = MapThreshold,
+            [nameof(IView.Background)] = MapBackground,
+        };
+
+    public static CommandMapper<SwipeView, SwipeViewHandler> CommandMapper =
+        new(ViewHandler.ViewCommandMapper)
+        {
+            ["RequestOpen"] = MapRequestOpen,
+            ["RequestClose"] = MapRequestClose,
+        };
+
+    public SwipeViewHandler() : base(Mapper, CommandMapper)
+    {
+    }
+
+    public SwipeViewHandler(IPropertyMapper? mapper, CommandMapper? commandMapper = null)
+        : base(mapper ?? Mapper, commandMapper ?? CommandMapper)
+    {
+    }
+
+    protected override SkiaSwipeView CreatePlatformView()
+    {
+        return new SkiaSwipeView();
+    }
+
+    protected override void ConnectHandler(SkiaSwipeView platformView)
+    {
+        base.ConnectHandler(platformView);
+        platformView.SwipeStarted += OnSwipeStarted;
+        platformView.SwipeEnded += OnSwipeEnded;
+    }
+
+    protected override void DisconnectHandler(SkiaSwipeView platformView)
+    {
+        platformView.SwipeStarted -= OnSwipeStarted;
+        platformView.SwipeEnded -= OnSwipeEnded;
+        base.DisconnectHandler(platformView);
+    }
+
+    private void OnSwipeStarted(object? sender, Platform.SwipeStartedEventArgs e)
+    {
+        // SwipeView events are handled internally by the platform view
+    }
+
+    private void OnSwipeEnded(object? sender, Platform.SwipeEndedEventArgs e)
+    {
+        // SwipeView events are handled internally by the platform view
+    }
+
+    public static void MapContent(SwipeViewHandler handler, SwipeView swipeView)
+    {
+        if (handler.PlatformView is null || handler.MauiContext is null) return;
+
+        var content = swipeView.Content;
+        if (content == null)
+        {
+            handler.PlatformView.Content = null;
+            return;
+        }
+
+        // Create handler for content
+        if (content.Handler == null)
+        {
+            content.Handler = content.ToViewHandler(handler.MauiContext);
+        }
+
+        if (content.Handler?.PlatformView is SkiaView skiaContent)
+        {
+            handler.PlatformView.Content = skiaContent;
+        }
+    }
+
+    public static void MapLeftItems(SwipeViewHandler handler, SwipeView swipeView)
+    {
+        if (handler.PlatformView is null) return;
+
+        handler.PlatformView.LeftItems.Clear();
+
+        if (swipeView.LeftItems != null)
+        {
+            foreach (var item in swipeView.LeftItems)
+            {
+                handler.PlatformView.LeftItems.Add(CreatePlatformSwipeItem(item));
+            }
+        }
+    }
+
+    public static void MapRightItems(SwipeViewHandler handler, SwipeView swipeView)
+    {
+        if (handler.PlatformView is null) return;
+
+        handler.PlatformView.RightItems.Clear();
+
+        if (swipeView.RightItems != null)
+        {
+            foreach (var item in swipeView.RightItems)
+            {
+                handler.PlatformView.RightItems.Add(CreatePlatformSwipeItem(item));
+            }
+        }
+    }
+
+    public static void MapTopItems(SwipeViewHandler handler, SwipeView swipeView)
+    {
+        if (handler.PlatformView is null) return;
+
+        handler.PlatformView.TopItems.Clear();
+
+        if (swipeView.TopItems != null)
+        {
+            foreach (var item in swipeView.TopItems)
+            {
+                handler.PlatformView.TopItems.Add(CreatePlatformSwipeItem(item));
+            }
+        }
+    }
+
+    public static void MapBottomItems(SwipeViewHandler handler, SwipeView swipeView)
+    {
+        if (handler.PlatformView is null) return;
+
+        handler.PlatformView.BottomItems.Clear();
+
+        if (swipeView.BottomItems != null)
+        {
+            foreach (var item in swipeView.BottomItems)
+            {
+                handler.PlatformView.BottomItems.Add(CreatePlatformSwipeItem(item));
+            }
+        }
+    }
+
+    public static void MapThreshold(SwipeViewHandler handler, SwipeView swipeView)
+    {
+        if (handler.PlatformView is null) return;
+
+        handler.PlatformView.LeftSwipeThreshold = (float)swipeView.Threshold;
+        handler.PlatformView.RightSwipeThreshold = (float)swipeView.Threshold;
+    }
+
+    public static void MapBackground(SwipeViewHandler handler, SwipeView swipeView)
+    {
+        if (handler.PlatformView is null) return;
+
+        if (swipeView.Background is SolidColorBrush solidBrush)
+        {
+            handler.PlatformView.BackgroundColor = solidBrush.Color.ToSKColor();
+        }
+    }
+
+    public static void MapRequestOpen(SwipeViewHandler handler, SwipeView swipeView, object? args)
+    {
+        if (handler.PlatformView is null) return;
+
+        if (args is SwipeViewOpenRequest request)
+        {
+            var direction = request.OpenSwipeItem switch
+            {
+                OpenSwipeItem.LeftItems => Platform.SwipeDirection.Right,
+                OpenSwipeItem.RightItems => Platform.SwipeDirection.Left,
+                OpenSwipeItem.TopItems => Platform.SwipeDirection.Down,
+                OpenSwipeItem.BottomItems => Platform.SwipeDirection.Up,
+                _ => Platform.SwipeDirection.Right
+            };
+
+            handler.PlatformView.Open(direction);
+        }
+    }
+
+    public static void MapRequestClose(SwipeViewHandler handler, SwipeView swipeView, object? args)
+    {
+        if (handler.PlatformView is null) return;
+        handler.PlatformView.Close();
+    }
+
+    private static Platform.SwipeItem CreatePlatformSwipeItem(ISwipeItem item)
+    {
+        var platformItem = new Platform.SwipeItem();
+
+        if (item is Controls.SwipeItem swipeItem)
+        {
+            platformItem.Text = swipeItem.Text ?? "";
+
+            // Get background color
+            var bgColor = swipeItem.BackgroundColor;
+            if (bgColor is not null)
+            {
+                platformItem.BackgroundColor = bgColor.ToSKColor();
+            }
+        }
+        else if (item is Controls.SwipeItemView swipeItemView)
+        {
+            // SwipeItemView uses custom content - use a simple representation
+            platformItem.Text = "Action";
+            platformItem.BackgroundColor = new SKColor(100, 100, 100);
+        }
+
+        return platformItem;
+    }
+}