Fix(Regions): a timeout before region-created

[katspaugh]

Short description

Resolves #3938

Implementation details

A timeout for region-created event to allow removing regions right after creation.

Summary by CodeRabbit

• Bug Fixes
  • Adjusted the timing of the region-created event emission to improve event handling during region creation.

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src/plugins/regions.ts

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Walkthrough

The pull request introduces a subtle change in the saveRegion method of the RegionsPlugin class. The modification involves wrapping the region-created event emission in a setTimeout with a zero-millisecond delay. This approach ensures that internal events triggered during region creation are processed first, potentially addressing timing-related issues with region event handling.

Changes

File	Change Summary
src/plugins/regions.ts	Modified saveRegion method to use setTimeout for region-created event emission

Assessment against linked issues

Objective	Addressed	Explanation
Remove regions except the last created	❓	Potential timing improvement, but full resolution unclear from this change alone
Ensure consistent region removal	❓	Modification might help with event sequencing, but comprehensive fix not evident

Poem

🐰 A rabbit's tale of regions bright,
Milliseconds dance, events take flight
Timeout whispers, "Wait just so,"
Regions emerge, then softly go
Code hops along with gentle might! 🌈

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📥 Commits

Reviewing files that changed from the base of the PR and between 1cd0192 and 8bd102d.

📒 Files selected for processing (1)

• src/plugins/regions.ts (1 hunks)

🔇 Additional comments (1)

src/plugins/regions.ts (1)

610-613: Use of zero-delay setTimeout for event emission seems reasonable, but consider microtask timing.

The zero-delay setTimeout is an effective approach to allow any internal synchronous operations to complete prior to emitting the region-created event. However, if you need even finer-grained control of event ordering within the same macrotask, you might instead consider using microtasks (e.g., via Promise.resolve().then(...)). That said, this approach appears fine for your use case.

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