feat: add toast auto-close plugin

[kvn1351]

Whenever you like a song for instance there's a persistent toast that must be manually dismissed which is very annoying. This plugin fixes that.

Summary

• add a renderer plugin that closes open YouTube Music toasts after 3 seconds
• observe dynamically created and reopened toast elements
• clean up the observer and pending timers when the plugin is disabled
• add English plugin metadata

Verification

• TypeScript typecheck
• Oxlint
• Production electron-vite build

Summary by CodeRabbit

• New Features
  • Added automatic closing for YouTube Music toast notifications after three seconds.
  • Toasts are detected when they appear, including dynamically added notifications.
  • Prevented duplicate close actions for the same toast.
  • Added English localization for the feature name and description.
  • Enabled by default without requiring an application restart.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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📥 Commits

Reviewing files that changed from the base of the PR and between 953bbfd and a4f9542.

📒 Files selected for processing (1)

• src/plugins/toast-autoclose/index.ts

🚧 Files skipped from review as they are similar to previous changes (1)

• src/plugins/toast-autoclose/index.ts

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📝 Walkthrough

Walkthrough

Added the toast-autoclose plugin. It detects YouTube Music toasts, closes them after three seconds, observes DOM changes, and clears timers and observers when stopped. English localization entries provide the plugin name and description.

Changes

Toast auto-close

Layer / File(s)	Summary
Toast detection and auto-close lifecycle src/plugins/toast-autoclose/index.ts, src/i18n/resources/en.json	The enabled-by-default plugin detects toasts, manages one timer per toast, closes toasts through the close button or element API, observes DOM and class mutations, and clears state when stopped. English metadata provides the plugin name and description.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to a4f95

This localized change adds automatic closing for YouTube Music toasts and cleanup when disabled; no actionable merge-blocking risk remains.

Sequence Diagram(s)

sequenceDiagram
  participant ToastAutoClosePlugin
  participant MutationObserver
  participant YouTubeMusicToast
  ToastAutoClosePlugin->>YouTubeMusicToast: Detect existing toast
  MutationObserver->>ToastAutoClosePlugin: Report DOM or class mutation
  ToastAutoClosePlugin->>ToastAutoClosePlugin: Start three-second timer
  ToastAutoClosePlugin->>YouTubeMusicToast: Click close button or call close API
  ToastAutoClosePlugin->>MutationObserver: Disconnect during shutdown

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🚥 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 describes the new toast auto-close plugin, which is the main change in the pull request.
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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[coderabbitai]

Actionable comments posted: 1

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Inline comments:
In `@src/plugins/toast-autoclose/index.ts`:
- Around line 39-42: Update scan to clear timers for toasts that are no longer
open before arming the currently open toasts, ensuring a closed-and-reopened
toast can receive a fresh timeout. Reuse the existing timer-tracking and cleanup
logic near arm rather than introducing separate state.

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📥 Commits

Reviewing files that changed from the base of the PR and between e0d86c2 and 8cab02f.

📒 Files selected for processing (2)

• src/i18n/resources/en.json
• src/plugins/toast-autoclose/index.ts

Included review availability: Your plan includes up to 10 reviews per rolling hour; 9 remain after this review.

[Copilot]

Pull request overview

Adds a new renderer plugin that automatically closes YouTube Music toast notifications after a short delay, along with English i18n metadata so it appears correctly in the plugin list.

Changes:

• Introduces toast-autoclose renderer plugin that scans for open toasts and schedules auto-close after 3 seconds.
• Adds a MutationObserver plus cleanup logic to handle dynamically created toast elements and plugin disable.
• Adds English strings for the new plugin’s name/description.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
src/plugins/toast-autoclose/index.ts	New renderer plugin that detects open toasts and schedules automatic closing, with observer/timer cleanup on stop.
src/i18n/resources/en.json	Adds English plugin metadata entries for toast-autoclose.

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[kvn1351]

Should be good now.

[kvn1351]

I had a look at the implementation that wraps toastService.show. It is definitely shorter, but the timer starts when show() is called rather than when the toast is actually displayed. Since the service uses a shared toast element and can queue messages, one timer can end up closing a later toast before it has been visible for three seconds. It also leaves pending timers running after the plugin is disabled.

This version starts the timer when the actual toast opens, tracks each toast separately, handles close/reopen correctly, and clears everything on disable. The observer is filtered to toast related mutations, so it is not scanning the whole app on every class change. It is a bit more code, but it avoids relying on YouTube Music's internal toastService implementation and should behave better with queued or rapidly replaced toasts.