feat(CardUpload): add BeforeActionButtonTemplate parameter (#7030)

* feat(CardUpload): add BeforeActionButtonTemplate parameter

* test: 增加单元测试

Author: ArgoZhang

src/BootstrapBlazor/Components/Upload/CardUpload.razor

@@ -32,9 +32,9 @@
                 <div class="upload-item-size"><span>@item.GetFileName()</span> (@item.Size.ToFileSizeString())</div>
                 <div class="upload-item-actions">
                     <div class="btn-group">
-                        @if (ActionButtonTemplate != null)
+                        @if (BeforeActionButtonTemplate != null)
                         {
-                            @ActionButtonTemplate(item)
+                            @BeforeActionButtonTemplate(item)
                         }
                         @if (ShowZoomButton)
                         {
@@ -54,6 +54,10 @@
                                 <i class="@CancelIcon"></i>
                             </button>
                         }
+						@if (ActionButtonTemplate != null)
+						{
+							@ActionButtonTemplate(item)
+						}
                     </div>
                     @if (ShowDeleteButton)
                     {

src/BootstrapBlazor/Components/Upload/CardUpload.razor.cs

@@ -60,6 +60,12 @@ public partial class CardUpload<TValue>
     [Parameter]
     public RenderFragment<UploadFile>? IconTemplate { get; set; }
 
+    /// <summary>
+    /// 获得/设置 操作按钮模板
+    /// </summary>
+    [Parameter]
+    public RenderFragment<UploadFile>? BeforeActionButtonTemplate { get; set; }
+
     /// <summary>
     /// 获得/设置 操作按钮模板
     /// </summary>

test/UnitTest/Components/UploadCardTest.cs

@@ -229,12 +229,17 @@ public void ActionButtonTemplate_Ok()
             [
                 new() { FileName = "test.png" }
             ]);
+            pb.Add(a => a.BeforeActionButtonTemplate, file => pb =>
+            {
+                pb.AddMarkupContent(0, "<button class=\"before-action-button-test\"></button>");
+            });
             pb.Add(a => a.ActionButtonTemplate, file => pb =>
             {
                 pb.AddMarkupContent(0, "<button class=\"action-button-test\"></button>");
             });
         });
 
+        cut.Contains("before-action-button-test");
         cut.Contains("action-button-test");
     }