feat(FlipClock): add value argument on Reset method (#7662)

* refactor: 增加重置值参数

* test: 增加单元测试

* chore: bump version 10.3.2-beta04

Author: ArgoZhang

src/BootstrapBlazor/BootstrapBlazor.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <Version>10.3.2-beta03</Version>
+    <Version>10.3.2-beta04</Version>
   </PropertyGroup>
 
   <ItemGroup>

src/BootstrapBlazor/Components/FlipClock/FlipClock.razor.cs

@@ -151,7 +151,7 @@ public partial class FlipClock
     /// <para lang="en">Gets or sets Start Time for Countdown or Count <see cref="FlipClockViewMode.Count"/> Default Effective in <see cref="FlipClockViewMode.CountDown" /> Mode</para>
     /// </summary>
     [Parameter]
-    public TimeSpan? StartValue { get; set; }
+    public TimeSpan StartValue { get; set; }
 
     private string? ClassString => CssBuilder.Default("bb-flip-clock")
         .AddClassFromAttributes(AdditionalAttributes)
@@ -175,21 +175,26 @@ public partial class FlipClock
     /// <summary>
     /// <inheritdoc/>
     /// </summary>
-    protected override Task InvokeInitAsync() => Reset();
-
-    private double GetTicks() => StartValue?.TotalMilliseconds ?? 0;
+    protected override Task InvokeInitAsync() => Reset(StartValue);
 
     /// <summary>
     /// <para lang="zh">重置方法</para>
     /// <para lang="en">Reset method</para>
     /// </summary>
     /// <returns></returns>
-    public Task Reset() => InvokeVoidAsync("init", Id, Interop, new
+    public Task Reset(TimeSpan? value = null)
     {
-        OnCompleted = nameof(OnCompleted),
-        ViewMode = ViewMode.ToString(),
-        StartValue = GetTicks()
-    });
+        if (value == null)
+        {
+            value = TimeSpan.Zero;
+        }
+        return InvokeVoidAsync("init", Id, Interop, new
+        {
+            OnCompleted = nameof(OnCompleted),
+            ViewMode = ViewMode.ToString(),
+            StartValue = value.Value.TotalMilliseconds
+        });
+    }
 
     /// <summary>
     /// <para lang="zh">倒计时结束回调方法由 JSInvoke 调用</para>

test/UnitTest/Components/FlipClockTest.cs

@@ -102,10 +102,7 @@ public async Task ViewMode_Ok()
         await cut.InvokeAsync(() => cut.Instance.OnCompleted());
         Assert.True(completed);
 
-        cut.Render(pb =>
-        {
-            pb.Add(a => a.StartValue, null);
-        });
+        await cut.InvokeAsync(() => cut.Instance.Reset());
     }
 
     [Theory]