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yellowjacket/frontend
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test(ui): clear localStorage between component tests
A test file does not get its own origin. `@vitest/browser-playwright`
opens one BrowserContext per session and runs several files in it, one
after another, so everything a component persists survives from file to
file. `track-list` restores its sort in `connectedCallback` and
`aria-tail.test.ts` activates the Title column header, so any file that
mounts a track list later in that tab opens sorted by title — where
`track-11` precedes `track-3`, which is #138's failure exactly.

Nothing about it is specific to that pair: a probe that throws when a
test starts with a non-empty `localStorage` failed 24 test-starts in one
full run (11 with the two sort keys, 8 with `cover-grid-size`, 5 with
`track-list-column-widths`) and cascaded into 248 failures. Which files
share a tab, and in what order, changes run to run, which is the whole
of why this reads as a 1-in-3 flake and passes in isolation.

The clear belongs in `setup.ts` rather than in the specs that write,
because the spec that reads is never the one that knows — and it is
safe for the same reason the leak exists: files within a session are
sequential, so it cannot wipe storage a concurrent file is using.

The spec now also states the order it asserts rather than inheriting a
default, and checks the row it is about to double-click carries the path
it expects, so a stray sort fails by naming itself instead of as an
off-by-eight file path.

Closes #138
2026-08-24 06:47:05 -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