feat(CardUpload): add CanPreviewCallback parameter (#3719)

* feat: 增加 webp 支持

* feat: 增加 CanPreviewCallback 回调方法

* refactor: 精简代码

* refactor: 撤销 webp 支持

Author: ArgoZhang

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

@@ -35,6 +35,12 @@ public partial class CardUpload<TValue>
 
     private string PreviewerId => $"prev_{Id}";
 
+    /// <summary>
+    /// 获得/设置 是否允许预览回调方法 默认 null
+    /// </summary>
+    [Parameter]
+    public Func<UploadFile, bool>? CanPreviewCallback { get; set; }
+
     /// <summary>
     /// 获得/设置 图标模板
     /// </summary>
@@ -108,13 +114,17 @@ protected override void OnParametersSet()
         ZoomIcon ??= IconTheme.GetIconByKey(ComponentIcons.CardUploadZoomIcon);
     }
 
-    private static bool IsImage(UploadFile item)
+    private bool IsImage(UploadFile item)
     {
         bool ret;
         if (item.File != null)
         {
             ret = item.File.ContentType.Contains("image", StringComparison.OrdinalIgnoreCase) || CheckExtensions(item.File.Name);
         }
+        else if (CanPreviewCallback != null)
+        {
+            ret = CanPreviewCallback(item);
+        }
         else
         {
             ret = IsBase64Format() || CheckExtensions(item.FileName ?? item.PrevUrl ?? "");

src/BootstrapBlazor/Extensions/IEditorItemExtensions.cs

@@ -51,8 +51,8 @@ private static bool IsVisible(this IEditorItem item, ItemChangedType changedType
         {
             ret = changedType switch
             {
-                ItemChangedType.Add => col.IsVisibleWhenAdd.HasValue ? col.IsVisibleWhenAdd.Value : col.Visible,
-                _ => col.IsVisibleWhenEdit.HasValue ? col.IsVisibleWhenEdit.Value : col.Visible
+                ItemChangedType.Add => col.IsVisibleWhenAdd ?? col.Visible,
+                _ => col.IsVisibleWhenEdit ?? col.Visible
             };
         }
         return ret;