70 lines
2.3 KiB
Svelte
70 lines
2.3 KiB
Svelte
<!--
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Copyright: Ankitects Pty Ltd and contributors
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License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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-->
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<script lang="typescript">
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import { setContext } from "svelte";
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import { writable } from "svelte/store";
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import Item from "./Item.svelte";
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import { sectionKey } from "./context-keys";
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import type { Identifier } from "./identifier";
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import { insertElement, appendElement } from "./identifier";
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import type { SvelteComponent, Registration } from "./registration";
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import { makeInterface } from "./registration";
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export let id: string | undefined = undefined;
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function makeRegistration(): Registration {
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const detach = writable(false);
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return { detach };
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}
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const { registerComponent, dynamicItems, getDynamicInterface } =
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makeInterface(makeRegistration);
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setContext(sectionKey, registerComponent);
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export let api: Record<string, never> | undefined = undefined;
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let sectionRef: HTMLDivElement;
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$: if (sectionRef && api) {
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const { addComponent, updateRegistration } = getDynamicInterface(sectionRef);
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const insert = (group: SvelteComponent, position: Identifier = 0) =>
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addComponent(group, (added, parent) =>
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insertElement(added, parent, position)
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);
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const append = (group: SvelteComponent, position: Identifier = -1) =>
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addComponent(group, (added, parent) =>
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appendElement(added, parent, position)
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);
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const show = (id: Identifier) =>
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updateRegistration(({ detach }) => detach.set(false), id);
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const hide = (id: Identifier) =>
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updateRegistration(({ detach }) => detach.set(true), id);
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const toggle = (id: Identifier) =>
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updateRegistration(
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({ detach }) => detach.update((old: boolean): boolean => !old),
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id
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);
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Object.assign(api, { insert, append, show, hide, toggle });
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}
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</script>
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<div bind:this={sectionRef} {id}>
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<slot />
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{#each $dynamicItems as item}
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<Item id={item[0].id} registration={item[1]}>
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<svelte:component this={item[0].component} {...item[0].props} />
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</Item>
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{/each}
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</div>
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<style lang="scss">
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div {
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display: contents;
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}
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</style>
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