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a11y.15 / WCAG 2.2.2: the bottom bar's title and artist scrolled for as long as a track played, re-armed in a loop by transitionend, with no pause mechanism and no reduced-motion guard. Reproduced under an emulated prefers-reduced-motion before the fix: the title still carried will-scroll with a 15s transition and the transform was still moving. That read landed in the snap-back half of the cycle, which is why a CSS-only 'transition: none' is the wrong fix -- it leaves the text translated off its own box and transitionend never fires to bring it back. The scroll is not armed at all instead, which is a decision shouldScroll() already owned, and it covers hover as well as always: reduce is a request about motion, not about autoplay. Two things came out of looking at the result rather than asserting on it. The non-scrolling fallback was hard-clipping, not ellipsising, in every mode including the default -- text-overflow was on the outer span while the overflowing box is the inline-block child. And moving it to the child then broke overflow *detection*, because the parent stops overflowing once the child hides its own; both measurements come from the child now. The second was caught by the new test's positive case, which is why it has one.
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.
vitefor- transpiling typescript
- bundling the final "package" that is useb by the webview
- running a dev server with hot-reloading
- configured with the
vite.config.tsfile in this directory
pnpmfor managing frontend dependency packages
There are a handful of dependency packages that we use directly in the frontend.
picocssfor basic CSS while developinglitfor a simple but powerful wrapper around Web Components
Lastly, there are some dependencies that only benefit development
tsservercomes bundled with vscode and can be used as an LSP with other editors usingtypescript-language-server- Used for autocomplete, syntax highlighting, etc.
- This can be configured with the
tsconfig.jsonfile in the root of the project- NOTE: your configuration should align with the
viteconfig so you get in-editor feedback that aligns with how the build will be done.
- NOTE: your configuration should align with the
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.htmlandindex.jsis the entrypoint for the frontend. The first page that loads.wailsjs/goGo code bindings generated by wails reside herewailsjs/runtimethe Wails runtime code needed to use Wails featuressrcall app code resides heresrc/assetsstatic assets like fonts, images and iconssrc/componentslit components that are used to compose the applicationsrc/pagespages that serve as other entrypoints for the application that can be navigated to