fix(types): allow non-object src in OnCopyProps

[theluckystrike]

OnCopyProps.src is typed as object. The enableClipboard callback gets the value of the copied entry, so src can also be a string, number, boolean, null or undefined. With the current type, a check like typeof src === 'string' narrows src to never, which is the side note in #86.

This uses the union from OnSelectProps.value, plus undefined, since entries with an undefined value also show a copy icon.

How I tested it:

• Added a test that copies a string entry and checks that clickCallback gets the string as src.
• npm test passes (204 tests).
• I ran tsc --strict on the snippet from Option to set strings to white-space: pre #86. On master it fails with Property 'replace' does not exist on type 'never'. With this change it compiles.

This only covers the typing note. The white-space: pre request in #86 is not part of it.

Refs #86

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📝 Walkthrough

Walkthrough

OnCopyProps.src now accepts objects, strings, numbers, booleans, and null. The copy test helper accepts a callback, and a test checks the callback payload for a string source.

Changes

Copy source callback

Layer / File(s)	Summary
Source types and callback test index.d.ts, test/tests/js/components/CopyToClipboard-test.js	OnCopyProps.src now allows primitive values and null. The test helper passes a callback to CopyToClipboard, and a test checks that a string source produces the expected callback payload.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~8 minutes

Change: Bug fix

Merge Risk: 🔵 Low · up to 2c251

Copy callbacks for entries with an undefined value can receive a value the declared type excludes. Align the public type with this reachable case; the impact is otherwise limited.

Security Architecture Review

Security architecture risk: ⚪ Minimal · up to 2c251

The callback type now accepts values the component already supplies. The clipboard implementation, callback authority, and runtime exposure are unchanged, and no material security risk was identified in this change.

Retained concerns
No architecture-level concerns identified.

Security review details

Security Blast Radius

• inferred — The effective exposure remains the existing component-value path into the browser clipboard and an application-provided callback. Widening this declaration does not introduce a new runtime producer, sink, or privilege transition in the inspected scope.

Trust Boundaries and Controls

• observed — enableClipboard continues to gate the editor's copy control, and callback dispatch still checks that clickCallback is a function. These are existing rendering and dispatch conditions, not newly introduced authorization or value-validation controls.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 2 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
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.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: allowing non-object values for OnCopyProps.src.

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Actionable comments posted: 1

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Inline comments:
Review comments at @index.d.ts:
- Line 180: Update the OnCopyProps.src type to include undefined alongside its
existing union members, so strict-null-checking consumers account for values
passed by the copy callback.

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ℹ️ Review info

⚙️ Run configuration

• Configuration used: defaults
• Review profile: CHILL
• Plan: Advanced
• Run ID: 43c220d7-bf54-48b0-b00b-8ca2e203dd1a

📥 Commits

Reviewing files that changed from the base of the PR and between 1dcdcfe and 2c25156.

📒 Files selected for processing (2)

• index.d.ts
• test/tests/js/components/CopyToClipboard-test.js

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[Kikobeats]

Thanks a lot!