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75 lines (61 loc) · 2.33 KB
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import { Element } from "./lib/elements.ts";
import { EmptyElements } from "./lib/emptyElements.ts";
import { Attr } from "./lib/attributes.ts";
import { Falsy, isFalsy } from "./util.ts";
import { SimpleState, SimpleStateRO, isState } from "./state.ts";
export type NonEmptyElement = Exclude<Element, EmptyElements>;
export type HyperTextNode = string;
export class HyperHTMLStringNode {
constructor(public htmlString: string) {}
}
export class HyperNode<Tag extends Element = Element, Attrs extends Attr = Attr> {
constructor(public tag: Tag, public attrs: Attrs, public children: (HyperNode | HyperTextNode)[]) {}
}
export type HyperNodeish<Tag extends Element = Element> =
| HyperNode<Tag>
| HyperTextNode
| HyperHTMLStringNode
| Falsy
| SimpleState<HyperNode<Tag> | HyperTextNode | HyperHTMLStringNode | Falsy>
| SimpleStateRO<HyperNode<Tag> | HyperTextNode | HyperHTMLStringNode | Falsy>;
// deno-lint-ignore no-explicit-any
export const isHyperNode = (n: any): n is HyperNode | HyperHTMLStringNode | HyperTextNode =>
n instanceof HyperNode || n instanceof HyperHTMLStringNode || typeof n === "string";
export function h<Tag extends NonEmptyElement = NonEmptyElement, Attrs extends Attr = Attr>(
elem: Tag,
props?: Attrs | Falsy,
): HyperNode<Tag>;
export function h<Tag extends NonEmptyElement = NonEmptyElement>(
elem: Tag,
...children: HyperNodeish[]
): HyperNode<Tag>;
export function h<Tag extends NonEmptyElement, Attrs extends Attr<Tag> = Attr<Tag>>(
elem: Tag,
props: Attr,
...children: HyperNodeish[]
): HyperNode<Tag>;
export function h<Tag extends NonEmptyElement, Attrs extends Attr<Tag> = Attr<Tag>>(
elem: Tag,
props?: Attrs | HyperNodeish | Falsy,
...children: HyperNodeish[]
): HyperNode<Tag>;
export function h<Tag extends EmptyElements, Attrs extends Attr<Tag> = Attr<Tag>>(
elem: Tag,
props?: Attrs | HyperNodeish | Falsy,
): HyperNode<Tag>;
export function h(elem: Element, props?: Attr | HyperNodeish, ...childNodes: HyperNodeish[]): HyperNode {
const [attrs, children] =
isHyperNode(props) || isFalsy(props) || isState(props)
? [{}, [props, ...childNodes]]
: [props || {}, childNodes || []];
return new HyperNode(
elem,
attrs,
children
// filter falsy nodes
.filter((child): child is HyperNode => Boolean(child)),
);
}
export function trust(html: string) {
return new HyperHTMLStringNode(html);
}