feat(CalendarMonth): add select prop passthrough

[kmcfaul]

What: Closes #

Allows a user to pass additional select props and override internal props like popperProps if their user case requires a different configuration.

Summary by CodeRabbit

• New Features
  • CalendarMonth component now accepts an optional monthSelectProps prop to enable customization of the month dropdown behavior.

[coderabbitai]

Walkthrough

The CalendarMonth component now accepts an optional monthSelectProps prop of type SelectProps, which is spread onto the month dropdown <Select> element to enable external customization of the select component's properties and behavior.

Changes

Cohort / File(s)	Summary
CalendarMonth Component packages/react-core/src/components/CalendarMonth/CalendarMonth.tsx	Added optional monthSelectProps?: SelectProps prop to CalendarProps type and spread it onto the month <Select> element for external prop customization. Updated SelectProps import.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely summarizes the main change: adding support for passing through select props in CalendarMonth component.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[patternfly-build]

Preview: https://pf-react-pr-12391.surge.sh

A11y report: https://pf-react-pr-12391-a11y.surge.sh

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@packages/react-core/src/components/CalendarMonth/CalendarMonth.tsx`:
- Around line 84-85: The prop type for monthSelectProps is too strict (it uses
SelectProps which requires toggle); change the declaration of monthSelectProps
to use Partial<SelectProps> so callers can pass only subsets like popperProps.
Update the type on the CalendarMonth component/interface (the monthSelectProps
property) and adjust any usage sites that assume required fields (e.g., avoid
directly calling monthSelectProps.toggle without existence checks) to handle
possibly-undefined members after making it Partial.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: a5e62b52-f57d-4114-8cf4-5182be9d70f3

📥 Commits

Reviewing files that changed from the base of the PR and between e47cb62 and 2caf68f.

📒 Files selected for processing (1)

• packages/react-core/src/components/CalendarMonth/CalendarMonth.tsx

[coderabbitai]

⚠️ Potential issue | 🟠 Major

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
set -euo pipefail

# Verify SelectProps requires toggle
rg -n --type=ts 'export interface SelectProps|toggle:\s*SelectToggleProps' packages/react-core/src/components/Select/Select.tsx

# Verify CalendarMonth typing for monthSelectProps
rg -n --type=ts 'monthSelectProps\?:\s*SelectProps|monthSelectProps\?:\s*Partial<SelectProps>' packages/react-core/src/components/CalendarMonth/CalendarMonth.tsx

Repository: patternfly/patternfly-react

Length of output: 260

---

monthSelectProps requires the full SelectProps interface, blocking partial passthrough use-cases

Line 85 types monthSelectProps as SelectProps, which has a required toggle property. This prevents callers from passing only specific options like popperProps, making the API ergonomically awkward for typical passthrough scenarios.

Change to Partial<SelectProps> to allow flexible prop passthrough:

Suggested fix

-  monthSelectProps?: SelectProps;
+  monthSelectProps?: Partial<SelectProps>;

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	/** Additional props passed to the month select component. */
	monthSelectProps?: SelectProps;
	/** Additional props passed to the month select component. */
	monthSelectProps?: Partial<SelectProps>;

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@packages/react-core/src/components/CalendarMonth/CalendarMonth.tsx` around
lines 84 - 85, The prop type for monthSelectProps is too strict (it uses
SelectProps which requires toggle); change the declaration of monthSelectProps
to use Partial<SelectProps> so callers can pass only subsets like popperProps.
Update the type on the CalendarMonth component/interface (the monthSelectProps
property) and adjust any usage sites that assume required fields (e.g., avoid
directly calling monthSelectProps.toggle without existence checks) to handle
possibly-undefined members after making it Partial.