feat: 增加右键支持

Author: ArgoZhang

src/BootstrapBlazor/Components/Tab/Tab.razor

@@ -166,7 +166,9 @@ else
 
     RenderFragment RenderHeaderItem(TabItem item) =>
     @<div @key="@item" class="@GetItemWrapClassString(item)" draggable="@DraggableString">
-        <a href="@item.Url" role="tab" tabindex="-1" class="@GetClassString(item)" @onclick="@(() => OnClickTabItem(item))" @onclick:preventDefault="@(!ClickTabToNavigation)">
+        <a href="@item.Url" role="tab" tabindex="-1" class="@GetClassString(item)"
+           @oncontextmenu="e => OnContextMenu(e, item)" @oncontextmenu:preventDefault="IsPreventDefault"
+           @onclick="@(() => OnClickTabItem(item))" @onclick:preventDefault="@(!ClickTabToNavigation)">
             @RenderHeaderItemContent(item)
         </a>
         @if (TabStyle == TabStyle.Chrome)

src/BootstrapBlazor/Components/Tab/Tab.razor.cs

@@ -3,6 +3,7 @@
 // See the LICENSE file in the project root for more information.
 // Maintainer: Argo Zhang([email protected]) Website: https://www.blazor.zone
 
+using Microsoft.AspNetCore.Components.Web;
 using Microsoft.Extensions.Localization;
 using System.Collections.Concurrent;
 using System.Reflection;
@@ -370,6 +371,9 @@ public partial class Tab : IHandlerException
     [Inject, NotNull]
     private DialogService? DialogService { get; set; }
 
+    [CascadingParameter]
+    private ContextMenuZone? ContextMenuZone { get; set; }
+
     private ConcurrentDictionary<TabItem, bool> LazyTabCache { get; } = new();
 
     private bool HandlerNavigation { get; set; }
@@ -382,6 +386,8 @@ public partial class Tab : IHandlerException
 
     private readonly ConcurrentDictionary<TabItem, TabItemContent> _cache = [];
 
+    private bool IsPreventDefault => ContextMenuZone != null;
+
     /// <summary>
     /// <inheritdoc/>
     /// </summary>
@@ -965,4 +971,12 @@ protected override async ValueTask DisposeAsync(bool disposing)
             ErrorLogger?.UnRegister(this);
         }
     }
+
+    private async Task OnContextMenu(MouseEventArgs e, TabItem item)
+    {
+        if (ContextMenuZone != null)
+        {
+            await ContextMenuZone.OnContextMenu(e, item);
+        }
+    }
 }