82 lines
2.3 KiB
TypeScript
82 lines
2.3 KiB
TypeScript
import { Attributes, ClosureComponent } from "mithril";
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import { map } from "../../lib/common/expression/parser.ts";
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import memoize from "../../lib/common/memoize.ts";
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import { Expression } from "../../lib/types.ts";
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import { m } from "../components.ts";
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import { evaluateExpression, getTimestamp } from "../store.ts";
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import { FlatDevice } from "../../lib/ui/db.ts";
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const evaluateAttributes = memoize(
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(
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attrs: Record<string, Expression>,
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obj: Record<string, unknown>,
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now: number, // eslint-disable-line @typescript-eslint/no-unused-vars
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): Attributes => {
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const res: Attributes = {};
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for (const [k, v] of Object.entries(attrs)) {
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const vv = map(v, (e) => {
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if (
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Array.isArray(e) &&
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e[0] === "FUNC" &&
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e[1] === "ENCODEURICOMPONENT"
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) {
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const a = evaluateExpression(e[2], obj);
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if (a == null) return null;
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return encodeURIComponent(a as string);
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}
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return e;
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});
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res[k] = evaluateExpression(vv, obj);
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}
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return res;
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},
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);
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interface Attrs {
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device: FlatDevice;
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filter: Expression;
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components: unknown;
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}
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const component: ClosureComponent<Attrs> = () => {
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return {
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view: (vnode) => {
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const device = vnode.attrs.device;
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if ("filter" in vnode.attrs) {
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if (!evaluateExpression(vnode.attrs.filter, device || {})) return null;
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}
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const children = Object.values(vnode.attrs.components).map((c) => {
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if (Array.isArray(c)) c = evaluateExpression(c, device || {});
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if (typeof c !== "object") return `${c}`;
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const type = evaluateExpression(c["type"], device || {});
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if (!type) return null;
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return m(type as string, c);
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});
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let el = vnode.attrs["element"];
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if (el == null) return children;
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let attrs: Attributes;
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if (Array.isArray(el)) {
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el = evaluateExpression(el, device || {});
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} else if (typeof el === "object") {
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if (el["attributes"] != null) {
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attrs = evaluateAttributes(
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el["attributes"],
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device || {},
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getTimestamp(),
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);
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}
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el = evaluateExpression(el["tag"], device || {});
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}
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return m(el, attrs, children);
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},
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};
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};
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export default component;
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