browser-contrast
Wraps the prefers-contrast media query as a global atom ("no-preference" | "more" | "less" | "custom"), plus boolean selectors for the more/less cases.
Install
bun add @valdres/browser-contrast
Live example
Loading demo…
Usage
import { Component } from "@angular/core"
import { injectValue } from "valdres-angular"
import { contrastAtom } from "@valdres/browser-contrast"
@Component({
selector: "contrast-badge",
template: `{{ contrast() }}`,
})
export class ContrastBadge {
contrast = injectValue(contrastAtom) // Signal<Contrast>
}
Exports
| Export | Kind | Type |
|---|---|---|
contrastAtom | atom (read-only) | Contrast |
prefersMoreContrastSelector | selector | boolean |
prefersLessContrastSelector | selector | boolean |
Contrast | type | "no-preference" | "more" | "less" | "custom" |
Cross-framework
contrastAtom is global: identical in every framework, only the read primitive's name changes (useValue, createValue, injectValue, watch, or store.get / store.sub in plain JS). The browser subscription starts on the first subscriber across all stores and stops when the last leaves.