feat(ImageViewer): support dynamic update Url parameter

[ArgoZhang]

Link issues

fixes #6509

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 dynamic URL updates in ImageViewer by guaranteeing a previewer ID on render and reacquiring the img element in the JavaScript update method

New Features:

• Support dynamic update of the Url parameter in the ImageViewer component

Bug Fixes:

• Fix feat(ImageViewer): support dynamic update Url parameter #6509 by enabling live URL updates in the image previewer

Enhancements:

• Always generate a PreviewerId to ensure consistent element identification
• Refresh the image element in the JavaScript updater before reattaching event listeners

[sourcery-ai]

Reviewer's Guide

This PR enables dynamic updates of the ImageViewer's URL parameter by always providing a previewer ID and refreshing the internal image element reference when the preview list changes.

Class diagram for updated ImageViewer component

classDiagram
    class ImageViewer {
        - PreviewList : List
        - Id : string
        - PreviewerId : string
        + RenderChildContent() : RenderFragment
        + ShowPreviewList : bool
    }
    ImageViewer : PreviewerId always returns $"prev_{Id}"

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File-Level Changes

Change	Details	Files
Consistently generate previewer ID	Removed the null return branch for PreviewerId Updated PreviewerId property to always return a formatted ID string	src/BootstrapBlazor/Components/ImageViewer/ImageViewer.razor.cs
Refresh image element reference when updating	Added assignment of viewer.img using querySelector to capture the current img element Kept setListeners call to rebind events after the img reference update	src/BootstrapBlazor/Components/ImageViewer/ImageViewer.razor.js

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#6509	Enable the ImageViewer component to support dynamic updates to the Url parameter.	✅

Possibly linked issues

• feat(ImageViewer): support dynamic update Url parameter #6509: The PR title and description perfectly match the issue, and it explicitly fixes the issue.
• feat(ImageViewer): support dynamic update Url parameter #6509: PR modifies ImageViewer component, which is essential for implementing the image click-to-enlarge feature requested in issue 6509.

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[sourcery-ai]

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

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (6fbacbc) to head (5f6ae61).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #6510   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          714       714           
  Lines        31387     31387           
  Branches      4431      4430    -1     
=========================================
  Hits         31387     31387           

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

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