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140 lines
3.4 KiB
140 lines
3.4 KiB
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 = $options.propsData || {}
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return prop in propsData
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}
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const filterProps = (props, propsData = {}) => {
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const res = {}
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Object.keys(props).forEach((k) => {
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if (k in propsData || props[k] !== undefined) {
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res[k] = props[k]
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}
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})
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return res
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}
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const getSlotOptions = (ele) => {
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let componentOptions = ele.componentOptions
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if (ele.$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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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.$createElement
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const temp = getPropsData(instance)[prop]
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if (temp !== undefined) {
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return typeof temp === 'function' ? temp(h) : temp
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}
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const slotsProp = []
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const componentOptions = instance.componentOptions || {};
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(componentOptions.children || []).forEach((child) => {
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if (child.data && child.data.slot === prop) {
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slotsProp.push(child)
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}
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})
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return slotsProp.length ? slotsProp : undefined
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}
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}
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const getPropsData = (ele) => {
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let componentOptions = ele.componentOptions
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if (ele.$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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return data.class || data.staticClass
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}
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export function getStyle (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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return data.style || data.staticStyle
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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 isValidElement (ele) {
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return !!ele.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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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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}
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export default hasProp
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