mirror of
https://github.com/alibaba/lowcode-engine.git
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357 lines
9.6 KiB
JavaScript
357 lines
9.6 KiB
JavaScript
import _objectWithoutProperties from 'babel-runtime/helpers/objectWithoutProperties';
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import _typeof from 'babel-runtime/helpers/typeof';
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import _extends from 'babel-runtime/helpers/extends';
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import { Children } from 'react';
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/**
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* util module
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*/
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/**
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* 是否是单选模式
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* @param {string} mode
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* @return {boolean} is single mode
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*/
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export function isSingle(mode) {
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return !mode || mode === 'single';
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}
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/**
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* 在 Select 中，认为 null 和 undefined 都是空值
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* @param {*} n any object
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* @return {boolean}
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*/
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export function isNull(n) {
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return n === null || n === undefined;
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}
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/**
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* 将字符串中的正则表达式关键字符添加转义
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* @param {string} str
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* @return {string}
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*/
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export function escapeForReg(str) {
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return str.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&');
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}
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/**
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* filter by key
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* @param {string} key filter key
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* @param {object} item item object
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* @return {boolean} it's filtered
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*/
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export function filter(key, item) {
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var _key = escapeForReg('' + key);
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var regExp = new RegExp('(' + _key + ')', 'ig');
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return regExp.test('' + item.value) || regExp.test('' + item.label);
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}
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/**
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* loop map
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* @param {Array} dataSource
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* @param {function} callback
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* @return {Array}
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* ----
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* @callback ~loopCallback
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* @param {object} option
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*/
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export function loopMap(dataSource, callback) {
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var result = [];
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dataSource.forEach(function (option) {
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if (option.children) {
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var children = loopMap(option.children, callback);
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children.length && result.push(_extends({}, option, {
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children: children
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}));
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} else {
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// eslint-disable-next-line callback-return
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var tmp = callback(option);
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tmp && result.push(tmp);
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}
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});
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return result;
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}
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/**
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* Parse dataSource from MenuItem
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* @static
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* @param {Array<Element>} children
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* @param {number} [deep=0] recursion deep level
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*/
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export function parseDataSourceFromChildren(children) {
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var deep = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
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var source = [];
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Children.forEach(children, function (child, index) {
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if (!child) {
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return;
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}
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var type = child.type,
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childProps = child.props;
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var item2 = { deep: deep };
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var isOption = false;
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var isOptionGroup = false;
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if (typeof type === 'function' && type._typeMark === 'next_select_option' || type === 'option') {
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isOption = true;
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}
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if (typeof type === 'function' && type._typeMark === 'next_select_option_group' || type === 'optgroup') {
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isOptionGroup = true;
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}
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if (!isOption && !isOptionGroup) {
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return;
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}
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if (isOption) {
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// option
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// If children is a string, it can be used as value
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var isStrChild = typeof childProps.children === 'string';
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// value > key > string children > index
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item2.value = 'value' in childProps ? childProps.value : 'key' in childProps ? childProps.key : isStrChild ? childProps.children : '' + index;
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item2.label = childProps.label || childProps.children || '' + item2.value;
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item2.title = childProps.title;
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childProps.disabled === true && (item2.disabled = true);
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// You can put your extra data here, and use it in `itemRender` or `labelRender`
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_extends(item2, childProps['data-extra'] || {});
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} else if (isOptionGroup && deep < 1) {
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// option group
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item2.label = childProps.label || 'Group';
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// parse children nodes
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item2.children = parseDataSourceFromChildren(childProps.children, deep + 1);
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}
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source.push(item2);
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});
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return source;
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}
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/**
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* Normalize dataSource
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* @static
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* @param {Array} dataSource
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* @param {number} [deep=0] recursion deep level
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* ----
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* value priority: value > 'index'
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* label priority: label > 'value' > 'index'
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* disabled: disabled === true
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*/
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export function normalizeDataSource(dataSource) {
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var deep = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
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var source = [];
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dataSource.forEach(function (item, index) {
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// enable array of basic type
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if (/string|boolean|number/.test(typeof item === 'undefined' ? 'undefined' : _typeof(item))) {
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item = { label: '' + item, value: item };
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}
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// filter off addon item
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if (item.__isAddon) {
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return;
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}
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var item2 = { deep: deep };
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// deep < 1: only 2 level allowed
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if (Array.isArray(item.children) && deep < 1) {
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// handle group
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item2.label = item.label || item.value || 'Group ' + index;
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// parse children
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item2.children = normalizeDataSource(item.children, deep + 1);
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} else {
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var _item = item,
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value = _item.value,
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label = _item.label,
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title = _item.title,
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disabled = _item.disabled,
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others = _objectWithoutProperties(_item, ['value', 'label', 'title', 'disabled']);
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item2.value = !isNull(value) ? value : '' + index;
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item2.label = label || '' + item2.value;
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item2.title = title;
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disabled === true && (item2.disabled = true);
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_extends(item2, others);
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}
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source.push(item2);
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});
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return source;
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}
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/**
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* Get flatten dataSource
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* @static
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* @param {Array} dataSource structured dataSource
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* @return {Array}
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*/
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export function flattingDataSource(dataSource) {
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var source = [];
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dataSource.forEach(function (item) {
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if (Array.isArray(item.children)) {
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source.push.apply(source, flattingDataSource(item.children));
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} else {
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source.push(item);
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}
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});
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return source;
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}
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export function filterDataSource(dataSource, key, filter, addonKey) {
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if (!Array.isArray(dataSource)) {
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return [];
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}
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if (typeof key === 'undefined' || key === null) {
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return [].concat(dataSource);
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}
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var addKey = true;
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var menuDataSource = loopMap(dataSource, function (option) {
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if (key === '' + option.value) {
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addKey = false;
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}
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return filter(key, option) && !option.__isAddon && option;
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});
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// if key not in menuDataSource, add key to dataSource
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if (addonKey && key && addKey) {
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menuDataSource.unshift({
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value: key,
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label: key,
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title: key,
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__isAddon: true
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});
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}
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return menuDataSource;
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}
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function getKeyItemByValue(value, valueMap) {
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var item = void 0;
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if ((typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && value.hasOwnProperty('value')) {
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item = value;
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} else {
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item = valueMap['' + value] || {
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value: value,
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label: value
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};
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}
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return item;
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}
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/**
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* compute valueDataSource by new value
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* @param {Array/String} value 数据
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* @param {Object} mapValueDS 上个value的缓存数据 value => {value,label} 的映射关系表
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* @param {*} mapMenuDS 通过 dataSource 建立 value => {value,label} 的映射关系表
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* @returns {Object} value: [value]; valueDS: [{value,label}]; mapValueDS: {value: {value,label}}
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*/
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export function getValueDataSource(value, mapValueDS, mapMenuDS) {
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if (isNull(value)) {
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return {};
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}
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var newValue = [];
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var newValueDS = [];
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var newMapValueDS = {};
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var _newMapDS = _extends({}, mapValueDS, mapMenuDS);
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if (Array.isArray(value)) {
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value.forEach(function (v) {
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var item = getKeyItemByValue(v, _newMapDS);
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newValueDS.push(item);
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newMapValueDS['' + item.value] = item;
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newValue.push(item.value);
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});
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return {
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value: newValue, // [value]
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valueDS: newValueDS, // [{value,label}]
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mapValueDS: newMapValueDS // {value: {value,label}}
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};
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} else {
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var _mapValueDS;
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var item = getKeyItemByValue(value, _newMapDS);
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return {
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value: item.value,
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valueDS: item,
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mapValueDS: (_mapValueDS = {}, _mapValueDS['' + item.value] = item, _mapValueDS)
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};
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}
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}
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/**
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* Get flatten dataSource
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* @static
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* @param {any} value structured dataSource
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* @return {String}
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*/
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export function valueToSelectKey(value) {
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var val = void 0;
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if ((typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && value.hasOwnProperty('value')) {
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val = value.value;
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} else {
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val = value;
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}
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return '' + val;
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}
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/**
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* UP Down 改进双向链表方法
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*/
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// function DoubleLinkList(element){
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// this.prev = null;
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// this.next = null;
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// this.element = element;
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// }
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//
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// export function mapDoubleLinkList(dataSource){
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//
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// const mapDS = {};
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// let doubleLink = null;
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//
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// let head = null;
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// let tail = null;
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//
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// function append(element) {
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// if (!doubleLink) {
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// doubleLink = new DoubleLinkList(element);
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// head = doubleLink;
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// tail = doubleLink;
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// return doubleLink;
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// }
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//
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// const node = new DoubleLinkList(element);
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// tail.next = node;
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// node.prev = tail;
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// tail = node;
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//
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// return tail;
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// }
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//
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// dataSource.forEach((item => {
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// if (item.disabled) {
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// return;
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// }
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// mapDS[`${item.value}`] = append(item);
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// }));
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//
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// return mapDS;
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// }
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//
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