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carbon-components

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The Carbon Design System is IBM’s open-source design system for products and experiences.

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function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); } (function (global, factory) { if (typeof define === "function" && define.amd) { define(["exports", "./components"], factory); } else if (typeof exports !== "undefined") { factory(exports, require("./components")); } else { var mod = { exports: {} }; factory(mod.exports, global.components); global.watch = mod.exports; } })(typeof globalThis !== "undefined" ? globalThis : typeof self !== "undefined" ? self : this, function (_exports, components) { "use strict"; Object.defineProperty(_exports, "__esModule", { value: true }); _exports.default = _default; components = _interopRequireWildcard(components); function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); } function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; } /** * Copyright IBM Corp. 2016, 2018 * * This source code is licensed under the Apache-2.0 license found in the * LICENSE file in the root directory of this source tree. */ var forEach = Array.prototype.forEach; var createAndReleaseComponentsUponDOMMutation = function createAndReleaseComponentsUponDOMMutation(records, componentClasses, componentClassesForWatchInit, options) { records.forEach(function (record) { forEach.call(record.addedNodes, function (node) { if (node.nodeType === Node.ELEMENT_NODE) { componentClassesForWatchInit.forEach(function (Clz) { Clz.init(node, options); }); } }); forEach.call(record.removedNodes, function (node) { if (node.nodeType === Node.ELEMENT_NODE) { componentClasses.forEach(function (Clz) { if (node.matches(Clz.options.selectorInit)) { var instance = Clz.components.get(node); if (instance) { instance.release(); } } else { forEach.call(node.querySelectorAll(Clz.options.selectorInit), function (element) { var instance = Clz.components.get(element); if (instance) { instance.release(); } }); } }); } }); }); }; /** * Automatically instantiates/destroys components in the given element, by watching for DOM additions/removals. * @param {Node} target The DOM node to instantiate components in. Should be a document or an element. * @param {object} [options] The component options. * @returns {Handle} The handle to stop watching. */ function _default() { var target = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : document; var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {}; if (target.nodeType !== Node.ELEMENT_NODE && target.nodeType !== Node.DOCUMENT_NODE) { throw new TypeError('DOM document or DOM element should be given to watch for DOM node to create/release components.'); } var componentClasses = Object.keys(components).map(function (key) { return components[key]; }).filter(function (component) { return typeof component.init === 'function'; }); var handles = componentClasses.map(function (Clz) { return Clz.init(target, options); }).filter(Boolean); var componentClassesForWatchInit = componentClasses.filter(function (Clz) { return !Clz.forLazyInit; }); var observer = new MutationObserver(function (records) { createAndReleaseComponentsUponDOMMutation(records, componentClasses, componentClassesForWatchInit, options); }); observer.observe(target, { childList: true, subtree: true }); return { release: function release() { for (var handle = handles.pop(); handle; handle = handles.pop()) { handle.release(); } if (observer) { observer.disconnect(); observer = null; } } }; } });