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Phase 1 of #63, and the design the issue asks for as one piece is .planning/plans/active/019-android-touch-model.md. **A finger has no second button and no modifier keys**, so the primary action has to be the primary gesture: tap plays the row, and the hold that opened a context menu now enters selection mode with that row selected. Three decisions in it, and two diverge from the report. **The predicate is the pointer, not the platform or the viewport.** `pointerType === 'touch'`, per event, which is already how long-press.ts decided and is the only such test in the frontend. This is #64's rule -- named after the capability -- and it carries #64's warning: keyed on a width, an Android *tablet* at 600px gets click-selects/double-click-plays on a touchscreen, which is the inversion this issue exists to fix, on the platform it exists for. A touchscreen laptop cannot be described by a width at all. Per event, a mouse keeps desktop semantics on the very same row, and there is no second declaration of what a phone does. **There is no double-tap, and the number is why.** The report asks for single tap to play *and* double tap for the menu. Those cannot both be honoured: the first tap of a double tap is indistinguishable from a single tap until the interval expires, so "tap plays" becomes "tap waits". Measured on the device, the play command to TrackChanged is 155/123/85/56/91 ms -- median ~100 -- and the app's own DOUBLE_CLICK_GRACE_MS is 250. That is 3.5x the primary interaction, 250ms of it spent deliberately doing nothing, on every track anyone plays, to reach a menu the hold already reaches. So the menu and the selection action bar are the same surface, which is also the platform's convention and removes a concept rather than adding one. **Tap-to-play and selection mode ship together**, because splitting them is a regression dressed as an increment: a touch user selects by tapping today and acts through the long-press menu, so moving tap to play on its own would leave a window with no way to select forty tracks at all. **What lets this reassign the hold without touching one of the fourteen context menus**: the layer announces `yj-tap` / `yj-long-press` (composed, cancelable) and acts on nothing. A component claims one with preventDefault. An **unclaimed long press still becomes a `contextmenu`**, so the card grids, Explore, the playlist rows and every other menu behave exactly as they did, and only lists that opt in get selection mode. An unclaimed *tap* does nothing at all and the click follows normally, which is what leaves every button in the app alone -- only a claimed tap has its click swallowed, or playing a track would also select it. **And the device found the one thing no browser tier can see.** Chrome 113's Android WebView fires its own `contextmenu` on a long press. long-press.ts stood down when a trusted one arrived, which was right while both paths ended in a context menu; they no longer do, so standing down means the gesture silently does the *old* thing. Measured, before the fix, holding a track row: {"log":["contextmenu isTrusted=true"], "state":{"bar":null,"menuActive":true,"selected":1}} `yj-long-press` was never announced, the menu opened, and all 26 tests passed -- dispatched pointer events do not make a browser synthesise one. So the native event is a **trigger, not a competitor**: the gesture is announced from it and only a claim suppresses it. Unclaimed it propagates untouched, which is the same "browser wins" outcome reached by asking instead of assuming. The tier could not find that and can hold it, because this module has always told its own events apart by identity rather than isTrusted, so an untrusted one from a test takes exactly the browser's path. Verified on the device by *performing* the gestures rather than describing the page -- `adb shell input tap` and `input swipe x y x y 700` reach the WebView as real pointer events, which is new here and is written down in the plan with the pixel mapping. Tap plays; a hold raises the bar with one selected and no menu; a tap toggles to two, back to one, and the mode ends with the last row; an album card still opens its context menu. 29 new tests. The e2e spec is rewritten to assert **both** halves -- the row selects, and a card elsewhere still opens the real menu -- because a spec that only checked the row would pass on a build that had silently broken the other thirteen. Phases 2-4 (swipe to queue, the other three surfaces, and what #67 inherits) are in the plan and not in this commit.
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