Files
yellowjacket/frontend
yonlu 5b236ca5af perf(library): patch what changed instead of reloading the list
A retag named the one file it rewrote and the store threw the whole
list away anyway: 20.5 MB across the IPC at 26 138 tracks to pick up one
new title. A soft rescan of an unchanged library did the same, though
its metrics say zero added, zero updated and zero removed.

- `TrackMetadataChanged` with a `filePath` re-reads that one row
  through `trackCache` and splices it in, replacing the array so the
  memoized filter and sort caches notice. The summaries are still
  refetched: a retag can move a track between albums. A failed patch
  falls back to the full reload, because the answer that cannot be
  wrong is the one to keep.
- A batch write names no paths (it can be thousands) and still reloads.
- `LibraryScanComplete` reads its own metrics and reloads only when the
  scan changed something; a payload of an unknown shape is treated as a
  change, so nothing can leave a stale list on screen.

Closes #282
2026-10-06 01:59:17 -04:00
..
2025-03-28 11:43:14 -05:00

YellowJacket Frontend

This directory contains the frontend for YellowJacket.

Dependencies

There are a couple of tools that are required to build and use the frontend.

  • vite for
    • transpiling typescript
    • bundling the final "package" that is useb by the webview
    • running a dev server with hot-reloading
    • configured with the vite.config.ts file in this directory
  • pnpm for managing frontend dependency packages

There are a handful of dependency packages that we use directly in the frontend.

Lastly, there are some dependencies that only benefit development

  • tsserver comes bundled with vscode and can be used as an LSP with other editors using typescript-language-server
    • Used for autocomplete, syntax highlighting, etc.
    • This can be configured with the tsconfig.json file in the root of the project
      • NOTE: your configuration should align with the vite config so you get in-editor feedback that aligns with how the build will be done.

Development

Ideally, you would use the frontend in the wails app as the frontend depends on the Go bindings generated by Wails. You can do this by running wails dev in the root of the YellowJacket repo.

If you want to run the frontend standalone, make sure the Wails go bindings have been generated with wails generate modules. Then, you can run pnpm dev to run the vite dev server. For more information on what commands are available, refer to package.json.

Code

Web Components

Our frontend is based off of Web Components, a standard that provides native browser encapsulation of components that can include HTML, CSS and Javascript all together. Instead of writing these components manually in Javascript, we utilize lit as a wrapper library.

Typescript

To better integrate with our tooling and to provide a better developer experience with strong typing, we have written all functional frontend code in Typescript. Vite serves as our Typescript transpiler.

Important Files and Directories

NOTE: most of these directories have aliases defined in tsconfig.json and vite.config.ts so that we may refer to them by shorthand when importing.

  • index.html and index.js is the entrypoint for the frontend. The first page that loads.
  • wailsjs/go Go code bindings generated by wails reside here
  • wailsjs/runtime the Wails runtime code needed to use Wails features
  • src all app code resides here
  • src/assets static assets like fonts, images and icons
  • src/components lit components that are used to compose the application
  • src/pages pages that serve as other entrypoints for the application that can be navigated to