@1771technologies/lytenyte-pro/dist/tree-view/utils/toggle-selection.js

Blazingly fast headless React data grid with 100s of features.

import { getTreeNodeId } from "./get-tree-node-id.js";
export function toggleSelection(el, ctx) {
    const id = getTreeNodeId(el);
    if (ctx.selectionMode === "single") {
        if (ctx.selection.has(id))
            ctx.onSelectionChange(new Set());
        else
            ctx.onSelectionChange(new Set([id]));
        return;
    }
    const next = new Set(ctx.selection);
    if (next.has(id)) {
        next.delete(id);
        ctx.selectionPivotRef.current = null;
    }
    else {
        next.add(id);
        ctx.selectionPivotRef.current = id;
    }
    ctx.onSelectionChange(next);
}