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Basedrum.js
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| import { h, Ref } from 'preact'; | |
| import { map, pluck, tap } from 'rxjs/operators'; | |
| import { | |
| ComponentFunction, | |
| ComponentTemplate, | |
| createComponent | |
| } from './component'; | |
| import { combine } from './util/combine'; | |
| import { createHandler } from './util/createHandler'; | |
| import { createRef } from './util/createRef'; | |
| import { MouseEventHandler, MouseEvent } from './types/events'; | |
| interface ItemProps { | |
| bar: string; | |
| } | |
| interface ItemState { | |
| bar: string; | |
| nom: string; | |
| foo: number; | |
| ref: Ref<HTMLDivElement>; | |
| handleClick: MouseEventHandler<HTMLDivElement>; | |
| } | |
| const ItemFn: ComponentFunction<ItemProps, ItemState> = ({ | |
| props, | |
| subscribe | |
| }) => { | |
| const [ref, elementStream] = createRef<HTMLDivElement>(); | |
| const [handleClick, clickStream] = createHandler< | |
| MouseEvent<HTMLDivElement> | |
| >(); | |
| subscribe( | |
| elementStream.pipe( | |
| tap(el => { | |
| el.getBoundingClientRect(); | |
| }) | |
| ) | |
| ); | |
| subscribe(clickStream.pipe(tap(e => e.currentTarget.ATTRIBUTE_NODE))); | |
| const nom = props.pipe( | |
| pluck('bar'), | |
| map(val => `${val}!`) | |
| ); | |
| return combine(props, { | |
| foo: 1, | |
| handleClick, | |
| nom, | |
| ref | |
| }); | |
| }; | |
| const ItemTemplate: ComponentTemplate<ItemState> = ({ | |
| bar, | |
| handleClick, | |
| ref | |
| }) => { | |
| return ( | |
| <div onClick={handleClick} ref={ref}> | |
| {bar} | |
| </div> | |
| ); | |
| }; | |
| export const Item = createComponent(ItemFn, ItemTemplate); |
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