@alifd/next
Version:
A configurable component library for web built on React.
369 lines (321 loc) • 10.2 kB
JavaScript
import _objectWithoutProperties from 'babel-runtime/helpers/objectWithoutProperties';
import _typeof from 'babel-runtime/helpers/typeof';
import _extends from 'babel-runtime/helpers/extends';
import { Children } from 'react';
/**
* util module
*/
/**
* 是否是单选模式
* @param {string} mode
* @return {boolean} is single mode
*/
export function isSingle(mode) {
return !mode || mode === 'single';
}
/**
* 在 Select 中，认为 null 和 undefined 都是空值
* @param {*} n any object
* @return {boolean}
*/
export function isNull(n) {
return n === null || n === undefined;
}
/**
* 将字符串中的正则表达式关键字符添加转义
* @param {string} str
* @return {string}
*/
export function escapeForReg(str) {
return str.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&');
}
/**
* filter by key
* @param {string} key filter key
* @param {object} item item object
* @return {boolean} it's filtered
*/
export function filter(key, item) {
var _key = escapeForReg('' + key);
var regExp = new RegExp('(' + _key + ')', 'ig');
return regExp.test('' + item.value) || regExp.test('' + item.label);
}
/**
* loop map
* @param {Array} dataSource
* @param {function} callback
* @return {Array}
* ----
* @callback ~loopCallback
* @param {object} option
*/
export function loopMap(dataSource, callback) {
var result = [];
dataSource.forEach(function (option) {
if (option.children) {
var children = loopMap(option.children, callback);
result.push(_extends({}, option, {
children: children
}));
} else {
// eslint-disable-next-line callback-return
var tmp = callback(option);
tmp && result.push(tmp);
}
});
return result;
}
/**
* Parse dataSource from MenuItem
* @static
* @param {Array<Element>} children
* @param {number} [deep=0] recursion deep level
*/
export function parseDataSourceFromChildren(children) {
var deep = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
var source = [];
Children.forEach(children, function (child, index) {
if (!child) {
return;
}
var type = child.type,
childProps = child.props;
var item2 = { deep: deep };
var isOption = false;
var isOptionGroup = false;
if (typeof type === 'function' && type._typeMark === 'next_select_option' || type === 'option') {
isOption = true;
}
if (typeof type === 'function' && type._typeMark === 'next_select_option_group' || type === 'optgroup') {
isOptionGroup = true;
}
if (!isOption && !isOptionGroup) {
return;
}
if (isOption) {
// option
// If children is a string, it can be used as value
var isStrChild = typeof childProps.children === 'string';
// value > key > string children > index
item2.value = 'value' in childProps ? childProps.value : 'key' in childProps ? childProps.key : isStrChild ? childProps.children : '' + index;
item2.label = childProps.label || childProps.children || '' + item2.value;
if ('title' in childProps) {
item2.title = childProps.title;
}
childProps.disabled === true && (item2.disabled = true);
// You can put your extra data here, and use it in `itemRender` or `labelRender`
_extends(item2, childProps['data-extra'] || {});
} else if (isOptionGroup && deep < 1) {
// option group
item2.label = childProps.label || 'Group';
// parse children nodes
item2.children = parseDataSourceFromChildren(childProps.children, deep + 1);
}
source.push(item2);
});
return source;
}
/**
* Normalize dataSource
* @static
* @param {Array} dataSource
* @param {number} [deep=0] recursion deep level
* ----
* value priority: value > 'index'
* label priority: label > 'value' > 'index'
* disabled: disabled === true
*/
export function normalizeDataSource(dataSource) {
var deep = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
var showDataSourceChildren = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
var source = [];
dataSource.forEach(function (item, index) {
// enable array of basic type
if (/string|boolean|number/.test(typeof item === 'undefined' ? 'undefined' : _typeof(item)) || item === null || item === undefined) {
item = { label: '' + item, value: item };
}
// filter off addon item
if (item && item.__isAddon) {
return;
}
var item2 = { deep: deep };
// deep < 1: only 2 level allowed
if (Array.isArray(item.children) && deep < 1 && showDataSourceChildren) {
// handle group
item2.label = item.label || item.value || 'Group ' + index;
// parse children
item2.children = normalizeDataSource(item.children, deep + 1);
} else {
var _item = item,
value = _item.value,
label = _item.label,
disabled = _item.disabled,
title = _item.title,
others = _objectWithoutProperties(_item, ['value', 'label', 'disabled', 'title']);
// undefined 认为是没传取 index 值替代
item2.value = typeof value !== 'undefined' ? value : '' + index;
item2.label = label || '' + item2.value;
if ('title' in item) {
item2.title = title;
}
disabled === true && (item2.disabled = true);
_extends(item2, others);
}
source.push(item2);
});
return source;
}
/**
* Get flatten dataSource
* @static
* @param {Array} dataSource structured dataSource
* @return {Array}
*/
export function flattingDataSource(dataSource) {
var source = [];
dataSource.forEach(function (item) {
if (Array.isArray(item.children)) {
source.push.apply(source, flattingDataSource(item.children));
} else {
source.push(item);
}
});
return source;
}
export function filterDataSource(dataSource, key, filter, addonKey) {
if (!Array.isArray(dataSource)) {
return [];
}
if (typeof key === 'undefined' || key === null) {
return [].concat(dataSource);
}
var addKey = true;
var menuDataSource = loopMap(dataSource, function (option) {
if (key === '' + option.value) {
addKey = false;
}
return filter(key, option) && !option.__isAddon && option;
});
// if key not in menuDataSource, add key to dataSource
if (addonKey && key && addKey) {
menuDataSource.unshift({
value: key,
label: key,
__isAddon: true
});
}
return menuDataSource;
}
function getKeyItemByValue(value, valueMap) {
var item = void 0;
if ((typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object') {
if (value.hasOwnProperty('value')) {
item = value;
} else {
item = _extends({
value: ''
}, value);
}
} else {
item = valueMap['' + value] || {
value: value,
label: value
};
}
return item;
}
/**
* compute valueDataSource by new value
* @param {Array/String} value 数据
* @param {Object} mapValueDS 上个value的缓存数据 value => {value,label} 的映射关系表
* @param {*} mapMenuDS 通过 dataSource 建立 value => {value,label} 的映射关系表
* @returns {Object} value: [value]; valueDS: [{value,label}]; mapValueDS: {value: {value,label}}
*/
export function getValueDataSource(value, mapValueDS, mapMenuDS) {
if (isNull(value)) {
return {};
}
var newValue = [];
var newValueDS = [];
var newMapValueDS = {};
var _newMapDS = _extends({}, mapValueDS, mapMenuDS);
if (Array.isArray(value)) {
value.forEach(function (v) {
var item = getKeyItemByValue(v, _newMapDS);
newValueDS.push(item);
newMapValueDS['' + item.value] = item;
newValue.push(item.value);
});
return {
value: newValue, // [value]
valueDS: newValueDS, // [{value,label}]
mapValueDS: newMapValueDS // {value: {value,label}}
};
} else {
var _mapValueDS;
var item = getKeyItemByValue(value, _newMapDS);
return {
value: item.value,
valueDS: item,
mapValueDS: (_mapValueDS = {}, _mapValueDS['' + item.value] = item, _mapValueDS)
};
}
}
/**
* Get flatten dataSource
* @static
* @param {any} value structured dataSource
* @return {String}
*/
export function valueToSelectKey(value) {
var val = void 0;
if ((typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && value.hasOwnProperty('value')) {
val = value.value;
} else {
val = value;
}
return '' + val;
}
/**
* UP Down 改进双向链表方法
*/
// function DoubleLinkList(element){
// this.prev = null;
// this.next = null;
// this.element = element;
// }
//
// export function mapDoubleLinkList(dataSource){
//
// const mapDS = {};
// let doubleLink = null;
//
// let head = null;
// let tail = null;
//
// function append(element) {
// if (!doubleLink) {
// doubleLink = new DoubleLinkList(element);
// head = doubleLink;
// tail = doubleLink;
// return doubleLink;
// }
//
// const node = new DoubleLinkList(element);
// tail.next = node;
// node.prev = tail;
// tail = node;
//
// return tail;
// }
//
// dataSource.forEach((item => {
// if (item.disabled) {
// return;
// }
// mapDS[`${item.value}`] = append(item);
// }));
//
// return mapDS;
// }
//