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import isPlainObject from 'lodash/isPlainObject';
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import classNames from 'classnames';
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import { isVNode, Fragment, Comment, Text, h } from 'vue';
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import { camelize, hyphenate, isOn, resolvePropValue } from './util';
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import isValid from './isValid';
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// function getType(fn) {
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// const match = fn && fn.toString().match(/^\s*function (\w+)/);
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// return match ? match[1] : '';
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// }
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const splitAttrs = attrs => {
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const allAttrs = Object.keys(attrs);
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const eventAttrs = {};
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const onEvents = {};
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const extraAttrs = {};
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for (let i = 0, l = allAttrs.length; i < l; i++) {
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const key = allAttrs[i];
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if (isOn(key)) {
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eventAttrs[key[2].toLowerCase() + key.slice(3)] = attrs[key];
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onEvents[key] = attrs[key];
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} else {
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extraAttrs[key] = attrs[key];
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}
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}
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return { onEvents, events: eventAttrs, extraAttrs };
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};
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const parseStyleText = (cssText = '', camel) => {
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const res = {};
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const listDelimiter = /;(?![^(]*\))/g;
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const propertyDelimiter = /:(.+)/;
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cssText.split(listDelimiter).forEach(function(item) {
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if (item) {
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const tmp = item.split(propertyDelimiter);
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if (tmp.length > 1) {
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const k = camel ? camelize(tmp[0].trim()) : tmp[0].trim();
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res[k] = tmp[1].trim();
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}
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}
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});
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return res;
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};
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const hasProp = (instance, prop) => {
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return prop in getOptionProps(instance);
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};
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// 重构后直接使用 hasProp 替换
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const slotHasProp = (slot, prop) => {
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return hasProp(slot, prop);
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};
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const getScopedSlots = ele => {
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return (ele.data && ele.data.scopedSlots) || {};
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};
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const getSlots = ele => {
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let componentOptions = ele.componentOptions || {};
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if (ele.$vnode) {
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componentOptions = ele.$vnode.componentOptions || {};
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}
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const children = ele.children || componentOptions.children || [];
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const slots = {};
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children.forEach(child => {
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if (!isEmptyElement(child)) {
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const name = (child.data && child.data.slot) || 'default';
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slots[name] = slots[name] || [];
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slots[name].push(child);
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}
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});
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return { ...slots, ...getScopedSlots(ele) };
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};
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const flattenChildren = (children = [], filterEmpty = true) => {
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const temp = Array.isArray(children) ? children : [children];
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const res = [];
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temp.forEach(child => {
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if (Array.isArray(child)) {
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res.push(...flattenChildren(child, filterEmpty));
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} else if (child && child.type === Fragment) {
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res.push(...flattenChildren(child.children, filterEmpty));
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} else if (child && isVNode(child)) {
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if (filterEmpty && !isEmptyElement(child)) {
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res.push(child);
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} else if (!filterEmpty) {
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res.push(child);
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}
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} else if (isValid(child)) {
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res.push(child);
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}
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});
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return res;
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};
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const getSlot = (self, name = 'default', options = {}) => {
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if (isVNode(self)) {
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if (self.type === Fragment) {
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return name === 'default' ? flattenChildren(self.children) : [];
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} else if (self.children && self.children[name]) {
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return flattenChildren(self.children[name](options));
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} else {
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return [];
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}
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} else {
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let res = self.$slots[name] && self.$slots[name](options);
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return flattenChildren(res);
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}
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};
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const getAllChildren = ele => {
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let componentOptions = ele.componentOptions || {};
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if (ele.$vnode) {
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componentOptions = ele.$vnode.componentOptions || {};
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}
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return ele.children || componentOptions.children || [];
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};
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const getSlotOptions = ele => {
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throw Error('使用 .type 直接取值');
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if (ele.fnOptions) {
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// 函数式组件
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return ele.fnOptions;
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}
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let componentOptions = ele.componentOptions;
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if (ele.$vnode) {
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componentOptions = ele.$vnode.componentOptions;
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}
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return componentOptions ? componentOptions.Ctor.options || {} : {};
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};
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const findDOMNode = instance => {
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let node = instance.$el || instance;
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while (node && !node.tagName) {
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node = node.nextSibling;
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}
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return node;
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};
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const getOptionProps = instance => {
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const res = {};
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if (instance.$ && instance.$.vnode) {
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const props = instance.$.vnode.props || {};
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Object.keys(instance.$props).forEach(k => {
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const v = instance.$props[k];
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const hyphenateKey = hyphenate(k);
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if (v !== undefined || hyphenateKey in props) {
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res[k] = v; // 直接取 $props[k]
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}
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});
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} else if (isVNode(instance) && typeof instance.type === 'object') {
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const originProps = instance.props || {};
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const props = {};
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Object.keys(originProps).forEach(key => {
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props[camelize(key)] = originProps[key];
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});
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const options = instance.type.props;
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Object.keys(options).forEach(k => {
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const v = resolvePropValue(options, props, k, props[k]);
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if (v !== undefined || k in props) {
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res[k] = v;
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}
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});
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}
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return res;
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};
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const getComponent = (instance, prop = 'default', options = instance, execute = true) => {
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let com = undefined;
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if (instance.$) {
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const temp = instance[prop];
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if (temp !== undefined) {
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return typeof temp === 'function' && execute ? temp(options) : temp;
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} else {
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com = instance.$slots[prop];
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com = execute && com ? com(options) : com;
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}
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} else if (isVNode(instance)) {
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const temp = instance.props && instance.props[prop];
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if (temp !== undefined && instance.props !== null) {
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return typeof temp === 'function' && execute ? temp(options) : temp;
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} else if (instance.type === Fragment) {
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com = instance.children;
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} else if (instance.children && instance.children[prop]) {
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com = instance.children[prop];
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com = execute && com ? com(options) : com;
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}
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}
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if (Array.isArray(com)) {
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com = flattenChildren(com);
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com = com.length === 1 ? com[0] : com;
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com = com.length === 0 ? undefined : com;
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}
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return com;
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};
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const getComponentFromProp = (instance, prop, options = instance, execute = true) => {
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if (instance.$createElement) {
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// const h = instance.$createElement;
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const temp = instance[prop];
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if (temp !== undefined) {
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return typeof temp === 'function' && execute ? temp(h, options) : temp;
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}
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return (
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(instance.$scopedSlots[prop] && execute && instance.$scopedSlots[prop](options)) ||
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instance.$scopedSlots[prop] ||
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instance.$slots[prop] ||
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undefined
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);
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} else {
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// const h = instance.context.$createElement;
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const temp = getPropsData(instance)[prop];
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if (temp !== undefined) {
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return typeof temp === 'function' && execute ? temp(h, options) : temp;
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}
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const slotScope = getScopedSlots(instance)[prop];
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if (slotScope !== undefined) {
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return typeof slotScope === 'function' && execute ? slotScope(h, options) : slotScope;
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}
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const slotsProp = [];
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const componentOptions = instance.componentOptions || {};
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(componentOptions.children || []).forEach(child => {
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if (child.data && child.data.slot === prop) {
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if (child.data.attrs) {
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delete child.data.attrs.slot;
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}
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if (child.tag === 'template') {
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slotsProp.push(child.children);
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} else {
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slotsProp.push(child);
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}
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}
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});
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return slotsProp.length ? slotsProp : undefined;
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}
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};
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const getAllProps = ele => {
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let props = getOptionProps(ele);
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if (ele.$) {
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props = { ...props, ...this.$attrs };
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} else {
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props = { ...ele.props, ...props };
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}
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return props;
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};
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const getPropsData = ins => {
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|
const vnode = ins.$ ? ins.$ : ins;
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|
const res = {};
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const originProps = vnode.props || {};
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const props = {};
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|
Object.keys(originProps).forEach(key => {
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props[camelize(key)] = originProps[key];
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|
});
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const options = isPlainObject(vnode.type) ? vnode.type.props : {};
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|
Object.keys(options).forEach(k => {
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|
const v = resolvePropValue(options, props, k, props[k]);
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if (k in props) {
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|
// 仅包含 props，不包含默认值
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|
res[k] = v;
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|
}
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|
});
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|
return { ...props, ...res }; // 合并事件、未声明属性等
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|
|
};
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|
|
const getValueByProp = (ele, prop) => {
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return getPropsData(ele)[prop];
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|
};
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|
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const getAttrs = ele => {
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|
let data = ele.data;
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|
|
if (ele.$vnode) {
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|
data = ele.$vnode.data;
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|
}
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|
return data ? data.attrs || {} : {};
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|
};
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|
|
const getKey = ele => {
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|
let key = ele.key;
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|
return key;
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|
};
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export function getEvents(ele = {}, on = true) {
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let props = {};
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if (ele.$) {
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props = { ...props, ...ele.$attrs };
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} else {
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props = { ...props, ...ele.props };
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}
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return splitAttrs(props)[on ? 'onEvents' : 'events'];
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}
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export function getEvent(child, event) {
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return child.props && child.props[event];
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}
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// 获取 xxx.native 或者 原生标签 事件
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export function getDataEvents(child) {
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let events = {};
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if (child.data && child.data.on) {
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events = child.data.on;
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}
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return { ...events };
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}
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|
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// use getListeners instead this.$listeners
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// https://github.com/vueComponent/ant-design-vue/issues/1705
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|
|
export function getListeners(context) {
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return (context.$vnode ? context.$vnode.componentOptions.listeners : context.$listeners) || {};
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|
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}
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export function getClass(ele) {
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const props = (isVNode(ele) ? ele.props : ele.$attrs) || {};
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let tempCls = props.class || {};
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let cls = {};
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if (typeof tempCls === 'string') {
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tempCls.split(' ').forEach(c => {
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cls[c.trim()] = true;
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});
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} else if (Array.isArray(tempCls)) {
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classNames(tempCls)
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.split(' ')
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.forEach(c => {
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cls[c.trim()] = true;
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});
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} else {
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cls = { ...cls, ...tempCls };
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}
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return cls;
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|
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}
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|
|
export function getStyle(ele, camel) {
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const props = (isVNode(ele) ? ele.props : ele.$attrs) || {};
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let style = props.style || {};
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if (typeof style === 'string') {
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style = parseStyleText(style, camel);
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} else if (camel && style) {
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// 驼峰化
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const res = {};
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Object.keys(style).forEach(k => (res[camelize(k)] = style[k]));
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|
return res;
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|
|
}
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|
return style;
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}
|
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|
|
export function getComponentName(opts) {
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|
|
return opts && (opts.Ctor.options.name || opts.tag);
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|
|
}
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|
|
export function isFragment(c) {
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|
|
return c.length === 1 && c[0].type === Fragment;
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|
|
}
|
|
|
|
|
|
export function isEmptyElement(c) {
|
|
|
return (
|
|
|
c.type === Comment ||
|
|
|
(c.type === Fragment && c.children.length === 0) ||
|
|
|
(c.type === Text && c.children.trim() === '')
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|
);
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|
}
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|
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export function isStringElement(c) {
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|
|
return !c.tag;
|
|
|
}
|
|
|
|
|
|
export function filterEmpty(children = []) {
|
|
|
const res = [];
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|
|
children.forEach(child => {
|
|
|
if (Array.isArray(child)) {
|
|
|
res.push(...child);
|
|
|
} else if (child.type === Fragment) {
|
|
|
res.push(...child.children);
|
|
|
} else {
|
|
|
res.push(child);
|
|
|
}
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|
|
});
|
|
|
return res.filter(c => !isEmptyElement(c));
|
|
|
}
|
|
|
const initDefaultProps = (propTypes, defaultProps) => {
|
|
|
Object.keys(defaultProps).forEach(k => {
|
|
|
if (propTypes[k]) {
|
|
|
propTypes[k].def && (propTypes[k] = propTypes[k].def(defaultProps[k]));
|
|
|
} else {
|
|
|
throw new Error(`not have ${k} prop`);
|
|
|
}
|
|
|
});
|
|
|
return propTypes;
|
|
|
};
|
|
|
|
|
|
export function mergeProps() {
|
|
|
const args = [].slice.call(arguments, 0);
|
|
|
const props = {};
|
|
|
args.forEach((p = {}) => {
|
|
|
for (const [k, v] of Object.entries(p)) {
|
|
|
props[k] = props[k] || {};
|
|
|
if (isPlainObject(v)) {
|
|
|
Object.assign(props[k], v);
|
|
|
} else {
|
|
|
props[k] = v;
|
|
|
}
|
|
|
}
|
|
|
});
|
|
|
return props;
|
|
|
}
|
|
|
|
|
|
function isValidElement(element) {
|
|
|
return element && element.__v_isVNode && typeof element.type !== 'symbol'; // remove text node
|
|
|
}
|
|
|
|
|
|
export {
|
|
|
splitAttrs,
|
|
|
hasProp,
|
|
|
getOptionProps,
|
|
|
getComponent,
|
|
|
getComponentFromProp,
|
|
|
getSlotOptions,
|
|
|
slotHasProp,
|
|
|
getPropsData,
|
|
|
getKey,
|
|
|
getAttrs,
|
|
|
getValueByProp,
|
|
|
parseStyleText,
|
|
|
initDefaultProps,
|
|
|
isValidElement,
|
|
|
camelize,
|
|
|
getSlots,
|
|
|
getSlot,
|
|
|
getAllProps,
|
|
|
getAllChildren,
|
|
|
findDOMNode,
|
|
|
flattenChildren,
|
|
|
};
|
|
|
export default hasProp;
|
