add item click event callback for notice list (#30)

Author: ElderJames

src/layout/src/NoticeIcon/NoticeList.razor

@@ -16,7 +16,7 @@
                  Class="list"
                  DataSource="@Data"
                  ItemLayout="ListItemLayout.Horizontal">
-                <ListItem>
+                <ListItem OnClick="@(()=> HandleItemClick(context.Key))">
                     <!--todo: Description shoud be RenderFragment-->
                     @if (string.IsNullOrEmpty(context.Avatar))
                     {

src/layout/src/NoticeIcon/NoticeList.razor.cs

@@ -15,6 +15,8 @@ public partial class NoticeList
         [Parameter] public bool ShowViewMore { get; set; }
         [Parameter] public EventCallback OnClear { get; set; }
         [Parameter] public EventCallback OnViewMore { get; set; }
+        [Parameter] public EventCallback<string> OnItemClick { get; set; }
+
         [Parameter] public string Title { get; set; }
 
         [CascadingParameter] public NoticeIcon NoticeIcon { get; set; }
@@ -48,5 +50,13 @@ public async Task HandleViewMore()
 
             if (NoticeIcon.OnViewMore.HasDelegate) await NoticeIcon.OnViewMore.InvokeAsync(TabKey);
         }
+
+        public async Task HandleItemClick(string key)
+        {
+            if (OnItemClick.HasDelegate)
+            {
+                await OnItemClick.InvokeAsync(key);
+            }
+        }
     }
 }