svelte-ux/stores/selectionStore.js

- Increment version in `package.json` and commit as `Version bump to x.y.z` - `npm run publish`

import { derived, writable } from 'svelte/store';
import uniqueStore from './uniqueStore';
export default function selectionStore(props = {}) {
    var _a, _b, _c;
    const selected = uniqueStore((_a = props.initial) !== null && _a !== void 0 ? _a : []);
    const all = writable((_b = props.all) !== null && _b !== void 0 ? _b : []);
    const single = (_c = props.single) !== null && _c !== void 0 ? _c : false;
    return derived([selected, all], ([$selected, $all]) => {
        var _a;
        function isSelected(value) {
            return $selected.has(value);
        }
        function toggleSelected(value) {
            selected.update(($selected) => {
                if ($selected.has(value)) {
                    // Remove
                    return new Set([...$selected].filter((v) => v != value));
                }
                else if (single) {
                    // Replace
                    return new Set([value]);
                }
                else {
                    // Add
                    return $selected.add(value);
                }
            });
        }
        function isAllSelected() {
            return $all.every((v) => $selected.has(v));
        }
        function isAnySelected() {
            return $all.some((v) => $selected.has(v));
        }
        function toggleAll() {
            let values;
            if (isAllSelected()) {
                // Deselect all (within current `all`, for example page/filtered result)
                values = [...$selected].filter((v) => !$all.includes(v));
            }
            else {
                // Select all (`new Set()` will dedupe)
                values = [...$selected, ...$all];
            }
            selected.set(new Set(values));
        }
        function clear() {
            selected.set(new Set());
        }
        const selectedArr = [...$selected.values()];
        return {
            selected: single ? (_a = selectedArr[0]) !== null && _a !== void 0 ? _a : null : selectedArr,
            toggleSelected,
            isSelected,
            toggleAll,
            isAllSelected,
            isAnySelected,
            clear,
            all,
        };
    });
}