mirror of
https://github.com/ankitects/anki.git
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103 lines
3.1 KiB
Svelte
103 lines
3.1 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 type { SvelteComponentTyped } from "svelte";
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import { setContext } from "svelte";
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import type { Writable } from "svelte/store";
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import { writable } from "svelte/store";
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import { buttonGroupKey } from "./contextKeys";
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import type { Identifier } from "./identifier";
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import { insert, add, update } from "./identifier";
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export let id: string | undefined = undefined;
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let className: string = "";
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export { className as class };
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export let api = {};
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export let buttonGroupRef: HTMLDivElement;
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$: root = buttonGroupRef?.getRootNode() as Document;
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interface ButtonRegistration {
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detach: Writable<boolean>;
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}
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const items: ButtonRegistration[] = [];
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function registerButton(): ButtonRegistration {
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const detach = writable(false);
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const registration = { detach };
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items.push(registration);
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return registration;
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}
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let dynamic: SvelteComponentTyped[] = [];
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function addButton(
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button: SvelteComponentTyped,
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add: (added: Element, parent: Element) => number
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): void {
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const callback = (
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mutations: MutationRecord[],
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observer: MutationObserver
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): void => {
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for (const mutation of mutations) {
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const addedNode = mutation.addedNodes[0];
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if (addedNode.nodeType === Node.ELEMENT_NODE) {
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const index = add(addedNode as Element, buttonGroupRef);
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}
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}
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observer.disconnect();
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};
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const observer = new MutationObserver(callback);
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observer.observe(buttonGroupRef, { childList: true });
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dynamic = [...dynamic, button];
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}
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const insertButton = (button: SvelteComponentTyped, id: Identifier = 0) =>
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addButton(button, (added, parent) => insert(added, parent, id));
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const appendButton = (button: SvelteComponentTyped, id: Identifier = -1) =>
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addButton(button, (added, parent) => add(added, parent, id));
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const showButton = (id: Identifier) =>
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update((element) => element.removeAttribute("hidden"), buttonGroupRef, id);
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const hideButton = (id: Identifier) =>
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update((element) => element.setAttribute("hidden", ""), buttonGroupRef, id);
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const toggleButton = (id: Identifier) =>
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update((element) => element.toggleAttribute("hidden"), buttonGroupRef, id);
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setContext(
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buttonGroupKey,
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Object.assign(api, {
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registerButton,
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insertButton,
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appendButton,
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showButton,
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hideButton,
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toggleButton,
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})
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);
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</script>
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<style lang="scss">
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div {
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display: flex;
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justify-items: start;
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flex-wrap: var(--toolbar-wrap);
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padding: calc(var(--toolbar-size) / 10);
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margin: 0;
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}
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</style>
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<div bind:this={buttonGroupRef} {id} class={className} dir="ltr">
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<slot />
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{#each dynamic as component}
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<svelte:component this={component} />
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{/each}
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</div>
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