241 lines
6.0 KiB
JavaScript
241 lines
6.0 KiB
JavaScript
import isPlainObject from 'lodash/isPlainObject'
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const camelizeRE = /-(\w)/g
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const camelize = (str) => {
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return str.replace(camelizeRE, (_, c) => c ? c.toUpperCase() : '')
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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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const $options = instance.$options || {}
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const propsData = $options.propsData || {}
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return prop in propsData
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}
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const slotHasProp = (slot, prop) => {
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const $options = slot.componentOptions || {}
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const propsData = $options.propsData || {}
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return prop in propsData
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}
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const filterProps = (props, propsData = {}) => {
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const res = {}
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Object.keys(props).forEach((k) => {
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if (k in propsData || props[k] !== undefined) {
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res[k] = props[k]
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}
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})
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return res
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}
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const getSlots = (ele) => {
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let componentOptions = ele.componentOptions
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if (ele.$vnode) {
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componentOptions = ele.$vnode.componentOptions
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}
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const children = componentOptions.children || []
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const slots = {}
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children.forEach(child => {
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const name = (child.data && child.data.slot) || 'default'
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slots[name] = slots[name] || []
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slots[name].push(child)
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})
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return slots
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}
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const getSlotOptions = (ele) => {
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let componentOptions = ele.componentOptions
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if (ele.$vnode) {
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componentOptions = ele.$vnode.componentOptions
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}
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return componentOptions ? componentOptions.Ctor.options || {} : {}
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}
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const getOptionProps = (instance) => {
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if (instance.componentOptions) {
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const componentOptions = instance.componentOptions
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const { propsData = {}, Ctor = {}} = componentOptions
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const props = (Ctor.options || {}).props || {}
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const res = {}
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for (const [k, v] of Object.entries(props)) {
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if (v.default !== undefined) {
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res[k] = typeof v.default === 'function' ? v.default() : v.default
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}
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}
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return { ...res, ...propsData }
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}
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const { $options = {}, $props = {}} = instance
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return filterProps($props, $options.propsData)
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}
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const getComponentFromProp = (instance, prop) => {
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if (instance.$createElement) {
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const h = instance.$createElement
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const temp = instance[prop]
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if (temp !== undefined) {
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return typeof temp === 'function' ? temp(h) : temp
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}
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return instance.$slots[prop]
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} else {
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const h = instance.context.$createElement
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const temp = getPropsData(instance)[prop]
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if (temp !== undefined) {
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return typeof temp === 'function' ? temp(h) : temp
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}
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const slotsProp = []
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const componentOptions = instance.componentOptions || {};
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(componentOptions.children || []).forEach((child) => {
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if (child.data && child.data.slot === prop) {
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if (child.tag === 'template') {
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slotsProp.push(child.children)
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} else {
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slotsProp.push(child)
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}
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}
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})
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return slotsProp.length ? slotsProp : undefined
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}
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}
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const getPropsData = (ele) => {
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let componentOptions = ele.componentOptions
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if (ele.$vnode) {
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componentOptions = ele.$vnode.componentOptions
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}
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return componentOptions ? componentOptions.propsData || {} : {}
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}
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const getValueByProp = (ele, prop) => {
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return getPropsData(ele)[prop]
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}
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const getAttrs = (ele) => {
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let data = ele.data
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if (ele.$vnode) {
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data = ele.$vnode.data
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}
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return data ? data.attrs || {} : {}
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}
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const getKey = (ele) => {
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let key = ele.key
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if (ele.$vnode) {
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key = ele.$vnode.key
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}
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return key
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}
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export function getEvents (child) {
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let events = {}
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if (child.componentOptions && child.componentOptions.listeners) {
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events = child.componentOptions.listeners
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} else if (child.data && child.data.on) {
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events = child.data.on
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}
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return { ...events }
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}
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export function getClass (ele) {
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let data = {}
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if (ele.data) {
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data = ele.data
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} else if (ele.$vnode && ele.$vnode.data) {
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data = ele.$vnode.data
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}
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const tempCls = data.class || data.staticClass
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let cls = {}
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if (typeof tempCls === 'string') {
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tempCls.split(' ').forEach(c => { cls[c.trim()] = true })
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} else {
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cls = tempCls
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}
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return cls
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}
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export function getStyle (ele, camel) {
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let data = {}
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if (ele.data) {
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data = ele.data
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} else if (ele.$vnode && ele.$vnode.data) {
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data = ele.$vnode.data
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}
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let style = data.style || data.staticStyle
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if (typeof style === 'string') {
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style = parseStyleText(style, camel)
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} else if (camel && style) { // 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 isEmptyElement (ele) {
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return !(ele.tag || ele.text.trim() !== '')
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}
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export function filterEmpty (children = []) {
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return children.filter(c => c.tag || c.text.trim() !== '')
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}
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const initDefaultProps = (propTypes, defaultProps) => {
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Object.keys(defaultProps).forEach(k => {
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if (propTypes[k]) {
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propTypes[k].def && (propTypes[k] = propTypes[k].def(defaultProps[k]))
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} else {
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throw new Error(
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`not have ${k} prop`,
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)
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}
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})
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return propTypes
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}
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export function mergeProps () {
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const args = [].slice.call(arguments, 0)
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const props = {}
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args.forEach((p, i) => {
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for (const [k, v] of Object.entries(p)) {
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props[k] = props[k] || {}
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if (isPlainObject(v)) {
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Object.assign(props[k], v)
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} else {
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props[k] = v
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}
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}
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})
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return props
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}
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function isValidElement (element) {
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return element && element.context && element.context._isVue
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}
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export {
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hasProp,
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filterProps,
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getOptionProps,
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getComponentFromProp,
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getSlotOptions,
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slotHasProp,
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getPropsData,
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getKey,
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getAttrs,
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getValueByProp,
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parseStyleText,
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initDefaultProps,
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isValidElement,
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camelize,
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getSlots,
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}
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export default hasProp
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