react-virtualized-sticky-tree
Version:
A React component for efficiently rendering tree like structures with support for position: sticky
55 lines (54 loc) • 2.81 kB
JavaScript
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const react_1 = __importStar(require("react"));
const countries_json_1 = __importDefault(require("./countries.json"));
const src_1 = require("../src");
const backgroundColors = ['#45b3e0', '#5bbce4', '#71c5e7', '#87ceeb'];
const countryNodes = countries_json_1.default.map((country) => (Object.assign(Object.assign({}, country), { id: country.index })));
const rootNode = countryNodes[0];
const CountriesTree = () => {
const rowRenderer = (0, react_1.useCallback)(({ node, style }) => {
style = Object.assign(Object.assign({}, style), { backgroundColor: backgroundColors[node.depth] });
return (react_1.default.createElement("div", { className: "node-row", key: node.id, style: style }, node.name));
}, []);
const getChildren = (0, react_1.useCallback)((node, nodeInfo) => {
var _a;
if (node.children) {
return (_a = node.children) === null || _a === void 0 ? void 0 : _a.map((childId) => ({
isSticky: !!countryNodes[childId].children,
stickyTop: 30 * countryNodes[childId].depth,
zIndex: 4 - countryNodes[childId].depth,
node: countryNodes[childId],
}));
}
}, []);
const root = (0, react_1.useMemo)(() => ({ isSticky: true, stickyTop: 0, zIndex: 4, node: rootNode }), []);
return (react_1.default.createElement(src_1.AutoSizedStickyTree, { className: "sticky-tree-wrapper", root: root, renderRoot: true, rowHeight: 30, rowRenderer: rowRenderer, getChildren: getChildren }));
};
exports.default = CountriesTree;