119 lines
3.8 KiB
Svelte
119 lines
3.8 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 ButtonGroupItem from "./ButtonGroupItem.svelte";
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import { setContext } from "svelte";
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import { writable } from "svelte/store";
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import { buttonGroupKey } 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 { ButtonRegistration } from "./buttons";
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import { ButtonPosition } from "./buttons";
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import type { SvelteComponent } from "./registration";
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import { makeInterface } from "./registration";
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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 size: number | undefined = undefined;
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export let wrap: boolean | undefined = undefined;
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$: buttonSize = size ? `--buttons-size: ${size}rem; ` : "";
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let buttonWrap: string;
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$: if (wrap === undefined) {
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buttonWrap = "";
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} else {
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buttonWrap = wrap ? `--buttons-wrap: wrap; ` : `--buttons-wrap: nowrap; `;
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}
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$: style = buttonSize + buttonWrap;
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function makeRegistration(): ButtonRegistration {
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const detach = writable(false);
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const position = writable(ButtonPosition.Standalone);
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return { detach, position };
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}
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const { registerComponent, items, dynamicItems, getDynamicInterface } =
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makeInterface(makeRegistration);
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$: for (const [index, item] of $items.entries()) {
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item.position.update(() => {
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if ($items.length === 1) {
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return ButtonPosition.Standalone;
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} else if (index === 0) {
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return ButtonPosition.InlineStart;
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} else if (index === $items.length - 1) {
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return ButtonPosition.InlineEnd;
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} else {
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return ButtonPosition.Center;
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}
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});
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}
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setContext(buttonGroupKey, registerComponent);
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export let api: Record<string, unknown> | undefined = undefined;
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let buttonGroupRef: HTMLDivElement;
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$: if (api && buttonGroupRef) {
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const { addComponent, updateRegistration } =
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getDynamicInterface(buttonGroupRef);
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const insertButton = (button: SvelteComponent, position: Identifier = 0) =>
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addComponent(button, (added, parent) =>
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insertElement(added, parent, position),
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);
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const appendButton = (button: SvelteComponent, position: Identifier = -1) =>
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addComponent(button, (added, parent) =>
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appendElement(added, parent, position),
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);
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const showButton = (id: Identifier) =>
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updateRegistration(({ detach }) => detach.set(false), id);
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const hideButton = (id: Identifier) =>
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updateRegistration(({ detach }) => detach.set(true), id);
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const toggleButton = (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, {
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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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<div
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bind:this={buttonGroupRef}
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{id}
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class="btn-group {className}"
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{style}
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dir="ltr"
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role="group"
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>
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<slot />
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{#each $dynamicItems as item (item[0].id)}
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<ButtonGroupItem id={item[0].id} registration={item[1]}>
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<svelte:component this={item[0].component} {...item[0].props} />
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</ButtonGroupItem>
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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: flex;
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flex-direction: row;
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flex-wrap: var(--buttons-wrap);
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}
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</style>
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