Helper factories and functions for Hybrids Web Components.
For larger projects, Hybrids' delightfully simple API and terse syntax can reveal some repetitive patterns which can be expressed as property factories. In particular, if you find yourself implementing the same factory patterns and custom descriptors across your projects, this library may be helpful to you.
import { cssVar, forEach, prop, ref, slotted, mouse } from 'hybrids-helpers'
const MyComponent = define({
tag: 'my-component',
// define a property with optional observer
booleanProperty: effect(
false,
// reflect value to a CSS variable on the host
cssVar('--my-css-bit', (value) => (value ? '1' : '0')),
(host, value, last) => console.log(`booleanProperty: ${last} -> ${value}`)
),
// Obtain a reference to an element in the shadow DOM
span: ref('#greeting'),
// get a reference to a slotted element from the light-DOM
slottedElement: slotted('my-slot'),
// track the mouse position within the element
mousePosition: mouse({ clamp: true }),
render: () => html`<span id="greeting">Hello!<slot name="my-slot"></slot></span>`,
})
Factories can be composed to reduce Hybrids descriptor boilerplate:
{
// a prop with a value of 'bar', which reflects it's value to '--my-foobar'
foo1: effect('bar', cssVar('--my-foobar')),
// equivalent hybrids 8.x descriptor
foo2: {
get: (host, val = 'bar') => val,
set: (host, val) => val,
observe: cssVar('--my-foobar'),
},
}
It can be difficult to manage complex templates in a single render function. The hy
templating functions can help to break up the template into smaller, more manageable parts.
import { hy } from '@auzmartist/hybrids-helpers'
const template = (host: { type: string }) => html`
<div>
${hy.if(host.type === 'foo', html`<span>Foo</span>`)}
${hy.case(host.type, {
foo: html`<span>Foo</span>`,
bar: html`<span>Bar</span>`,
baz: html`<span>Baz</span>`,
default: html`<span>Default</span>`,
})}
</div>
`
hybrids-helpers depends on hybrids >= 9.0.0
pnpm i @auzmartist/hybrids-helpers
pnpm docs:preview