feat(LinkButton): support IsAsync function

[ArgoZhang]

Link issues

fixes #6580

Summary By Copilot

Regression?

• Yes
• No

Risk

• High
• Medium
• Low

Verification

• Manual (required)
• Automated

Packaging changes reviewed?

• Yes
• No
• N/A

☑️ Self Check before Merge

⚠️ Please check all items below before review. ⚠️

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• Merge the latest code from the main branch

Summary by Sourcery

Enable asynchronous click handling in LinkButton by introducing IsAsync with loading and disable state management, centralize click logic in ButtonBase, and update tests accordingly

New Features:

• Add IsAsync support to LinkButton to manage asynchronous click handlers with loading and disable states

Enhancements:

• Move HandlerClick method from Button.razor.cs into ButtonBase to centralize click handling logic

Tests:

• Update LinkButtonTest to use async OnClick delegate and verify click behavior when IsAsync is enabled

Chores:

• Remove duplicate HandlerClick implementation and an unused using directive in LinkButton

[sourcery-ai]

Reviewer's Guide

This PR introduces asynchronous click support for LinkButton by refactoring the click handler into the base component (ButtonBase), enhancing OnClickButton to manage loading/disabled states when IsAsync is enabled, and updating unit tests to cover async behavior.

Sequence diagram for LinkButton async click handling

sequenceDiagram
    participant User as actor
    participant LinkButton
    participant ButtonBase
    User->>LinkButton: Clicks button
    LinkButton->>LinkButton: If IsAsync, set IsAsyncLoading/IsDisabled
    LinkButton->>ButtonBase: HandlerClick()
    ButtonBase->>ButtonBase: OnClickWithoutRender/OnClick
    LinkButton->>LinkButton: If IsAsync, restore IsDisabled/IsAsyncLoading

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Class diagram for updated ButtonBase and LinkButton async click support

classDiagram
    class ButtonBase {
        +OnClickWithoutRender
        +OnClick
        +IsAsync
        +IsNotRender
        +HandlerClick()
    }
    class LinkButton {
        +IsAsyncLoading
        +IsDisabled
        +IsKeepDisabled
        +OnClickButton()
    }
    ButtonBase <|-- LinkButton
    ButtonBase : +HandlerClick() (moved from Button)
    LinkButton : +OnClickButton() (updated for async)

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File-Level Changes

Change	Details	Files
Extracted and centralized click handling logic	Removed duplicate HandlerClick from Button.razor.cs Added HandlerClick implementation to ButtonBase.cs	src/BootstrapBlazor/Components/Button/Button.razor.cs src/BootstrapBlazor/Components/Button/ButtonBase.cs
Enabled IsAsync workflow in LinkButton	Adjusted OnClickButton to set IsAsyncLoading and IsDisabled when IsAsync Replaced inline invocation with call to HandlerClick Restored IsDisabled and IsAsyncLoading after click	src/BootstrapBlazor/Components/Button/LinkButton.cs
Updated LinkButton unit tests for asynchronous clicks	Converted OnClick_Ok to async Task test Added IsAsync flag and async OnClick delegate Awaited link.Click() and assertion	test/UnitTest/Components/LinkButtonTest.cs

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#6580	Add support for the IsAsync function/parameter to LinkButton, enabling asynchronous click handling.	✅

Possibly linked issues

• feat(LinkButton): support IsAsync function #6580: The PR implements the IsAsync function for LinkButton as requested in the issue.
• feat(LinkButton): support IsAsync function #6580: The PR fixes issue feat(LinkButton): support IsAsync function #6580 by implementing the IsAsync loading and disabling behavior for LinkButton.

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[sourcery-ai]

Hey @ArgoZhang - I've reviewed your changes and they look great!

Prompt for AI Agents

Please address the comments from this code review:
## Individual Comments

### Comment 1
<location> `src/BootstrapBlazor/Components/Button/LinkButton.cs:122` </location>
<code_context>
     private async Task OnClickButton()
     {
-        if (OnClickWithoutRender != null)
+        if (IsAsync)
         {
-            await OnClickWithoutRender();
+            IsAsyncLoading = true;
+            IsDisabled = true;
         }
</code_context>

<issue_to_address>
Async state management added before click handling.

Check if IsAsyncLoading and IsDisabled remain accurate if HandlerClick throws an exception or completes synchronously.
</issue_to_address>

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (e618bf9) to head (58619f5).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #6581   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          721       721           
  Lines        31559     31562    +3     
  Branches      4450      4450           
=========================================
+ Hits         31559     31562    +3     

Flag	Coverage Δ
BB	100.00% <100.00%> (?)

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