Improve theme infra of BitRating (#13333)

[msynk]

closes #13333

Summary by CodeRabbit

• New Features

  • Added labels, descriptions, templates, positioning, and improved accessible naming for rating controls.
  • Added cascading parameter support for configuring rating components.
  • Added expanded styling options, CSS variables, custom classes, icons, layouts, and required-state visuals.
  • Improved read-only ratings with clearer semantics and value announcements.
  • Preserved browser shortcuts when rating controls receive modified keyboard input.
  • Increased rating item pointer targets for improved usability.

• Documentation

  • Expanded rating examples covering accessibility, styling, labels, cascading parameters, and RTL layouts.

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Walkthrough

BitRating gains accessible labels and descriptions, read-only semantics, cascading parameters, modifier-key handling, public CSS variables, revised layouts, expanded demos, and corresponding tests. Shared input parameter tracking enables cascading defaults without overriding directly assigned values.

Changes

Parameter inheritance

Layer / File(s)	Summary
Input parameter tracking and cascading defaults src/BlazorUI/Bit.BlazorUI/Components/Inputs/BitInputBase.cs, src/BlazorUI/Bit.BlazorUI/Utils/Params/BitInputBaseParams.cs, src/BlazorUI/Bit.BlazorUI/Components/Inputs/Rating/BitRatingParams.cs, src/BlazorUI/Bit.BlazorUI/Components/Inputs/Rating/BitRating.razor.cs, src/BlazorUI/Tests/Bit.BlazorUI.Tests/Components/Inputs/Rating/BitRatingTests.cs	Handled input parameters are recorded. BitInputBaseParams and BitRatingParams apply only values that the rating did not set directly. Tests cover inheritance and direct-parameter precedence.

Accessibility and interaction

Layer / File(s)	Summary
Labels, descriptions, and read-only naming src/BlazorUI/Bit.BlazorUI/Components/Inputs/Rating/BitRating.razor, src/BlazorUI/Bit.BlazorUI/Components/Inputs/Rating/BitRating.razor.cs, src/BlazorUI/Tests/Bit.BlazorUI.Tests/Components/Inputs/Rating/BitRatingTests.cs	BitRating supports labels, templates, descriptions, external naming references, read-only value text, required-state labeling, and updated read-only ARIA attributes.
Keyboard modifier handling src/BlazorUI/Bit.BlazorUI/Scripts/Ratings.ts, src/BlazorUI/Bit.BlazorUI/Components/Inputs/Rating/BitRating.razor.cs, src/BlazorUI/Tests/Bit.BlazorUI.Tests/Components/Inputs/Rating/BitRatingTests.cs	Ctrl, Alt, and Meta modified keys are left to browser behavior. Tests verify that these keys do not change the rating value.

Theme and layout

Layer / File(s)	Summary
Rating layout and public theme variables src/BlazorUI/Bit.BlazorUI/Components/Inputs/Rating/BitRating.scss, src/BlazorUI/Bit.BlazorUI/Components/Inputs/Rating/BitRatingClassStyles.cs, src/BlazorUI/Bit.BlazorUI/Tests/Components/Inputs/Rating/BitRatingTests.cs	The stylesheet adds public rating variables, label positions, state colors, pointer-target sizing, hover scaling, required markers, and custom label, description, and container styling.

Documentation and demos

Layer / File(s)	Summary
Rating documentation and examples src/BlazorUI/Demo/Client/Bit.BlazorUI.Demo.Client.Core/Pages/Components/Inputs/Rating/*	The demo documents accessibility, labels, descriptions, cascading parameters, CSS variables, styling, sizing, keyboard behavior, and RTL behavior. Examples and sample numbering are updated, and demo styles move into SCSS-backed code samples.

Priority: ➖ Normal

Estimated code review effort: 4 (Complex) | ~45 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant User
  participant BitRating
  participant RatingsSetup
  participant Browser
  User->>BitRating: activate rating or press a key
  BitRating->>RatingsSetup: process rating keyboard input
  RatingsSetup->>Browser: preserve modified shortcut keys
  BitRating->>User: render label, description, value, and rating state

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Merge Risk: 🔵 Low · up to 8fdd4

The rating demo can mislead users about supported precision. Clarify the overview before merge or accept this bounded documentation inconsistency.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 11.11% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 36 functions across 9 files. (4 skipped: …	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately identifies the main BitRating theme infrastructure changes. It is concise and specific enough for the changeset, although it does not mention the related accessibility and documen…
Linked Issues check	✅ Passed	The pull request addresses the coding objectives in #13333. BitRating.scss adds theme tokens and public --bit-Rating-* CSS variables. BitRating.razor and BitRating.razor.cs improve accessible …
Out of Scope Changes check	✅ Passed	The changes remain within the scope of #13333. BitInputBase and BitInputBaseParams support rating parameter inheritance. BitRatingParams exposes the rating-specific cascading configuration. The …

Full details: Docstring Coverage

Explanation

Docstring coverage is 11.11% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 36 functions across 9 files. (4 skipped: 4 unsupported.)

✨ Finishing Touches

🧪 Generate unit tests (beta)

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_{A rabbit labels stars with care
It leaves quick shortcuts to the air
Cascading defaults softly flow
Public colors help the themes grow
Read-only values speak their name
New tests guard the rating game}

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Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

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Inline comments:
In
`@src/BlazorUI/Demo/Client/Bit.BlazorUI.Demo.Client.Core/Pages/Components/Inputs/Rating/BitRatingDemo.razor`:
- Line 5: The Rating demo overview description makes an unrestricted precision
claim that conflicts with the documented precision limits. Update the
description near the Rating component overview to state the supported step-size
and 100-substep-per-item limit, or remove the “down to any step” and
unlimited-step wording while preserving the other listed capabilities.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Advanced

Run ID: c915aa8c-11b6-41f9-bcad-ffe9d2974913

📥 Commits

Reviewing files that changed from the base of the PR and between 36fd681 and 8fdd442.

📒 Files selected for processing (13)

• src/BlazorUI/Bit.BlazorUI/Components/Inputs/BitInputBase.cs
• src/BlazorUI/Bit.BlazorUI/Components/Inputs/Rating/BitRating.razor
• src/BlazorUI/Bit.BlazorUI/Components/Inputs/Rating/BitRating.razor.cs
• src/BlazorUI/Bit.BlazorUI/Components/Inputs/Rating/BitRating.scss
• src/BlazorUI/Bit.BlazorUI/Components/Inputs/Rating/BitRatingClassStyles.cs
• src/BlazorUI/Bit.BlazorUI/Components/Inputs/Rating/BitRatingParams.cs
• src/BlazorUI/Bit.BlazorUI/Scripts/Ratings.ts
• src/BlazorUI/Bit.BlazorUI/Utils/Params/BitInputBaseParams.cs
• src/BlazorUI/Demo/Client/Bit.BlazorUI.Demo.Client.Core/Pages/Components/Inputs/Rating/BitRatingDemo.razor
• src/BlazorUI/Demo/Client/Bit.BlazorUI.Demo.Client.Core/Pages/Components/Inputs/Rating/BitRatingDemo.razor.cs
• src/BlazorUI/Demo/Client/Bit.BlazorUI.Demo.Client.Core/Pages/Components/Inputs/Rating/BitRatingDemo.razor.samples.cs
• src/BlazorUI/Demo/Client/Bit.BlazorUI.Demo.Client.Core/Pages/Components/Inputs/Rating/BitRatingDemo.razor.scss
• src/BlazorUI/Tests/Bit.BlazorUI.Tests/Components/Inputs/Rating/BitRatingTests.cs

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