Nuxt/packages/app/template/components/nuxt-child.js

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export default {
name: 'nuxt-child',
functional: true,
props: ['keepAlive', 'keepAliveProps'],
render (h, { parent, data, props }) {
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data.nuxtChild = true
const _parent = parent
const transitions = parent.<%= globals.nuxt %>.nuxt.transitions
const defaultTransition = parent.<%= globals.nuxt %>.nuxt.defaultTransition
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let depth = 0
while (parent) {
if (parent.$vnode && parent.$vnode.data.nuxtChild) {
depth++
}
parent = parent.$parent
}
data.nuxtChildDepth = depth
const transition = transitions[depth] || defaultTransition
let transitionProps = {}
transitionsKeys.forEach((key) => {
if (typeof transition[key] !== 'undefined') {
transitionProps[key] = transition[key]
}
})
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let listeners = {}
listenersKeys.forEach((key) => {
if (typeof transition[key] === 'function') {
listeners[key] = transition[key].bind(_parent)
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}
})
// Add triggerScroll event on beforeEnter (fix #1376)
const beforeEnter = listeners.beforeEnter
listeners.beforeEnter = (el) => {
// Ensure to trigger scroll event after calling scrollBehavior
window.<%= globals.nuxt %>.$nextTick(() => {
window.<%= globals.nuxt %>.$emit('triggerScroll')
})
if (beforeEnter) return beforeEnter.call(_parent, el)
}
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let routerView = [
h('router-view', data)
]
if (typeof props.keepAlive !== 'undefined') {
routerView = [
h('keep-alive', { props: props.keepAliveProps }, routerView)
]
}
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return h('transition', {
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props: transitionProps,
on: listeners
}, routerView)
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}
}
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const transitionsKeys = [
'name',
'mode',
'appear',
'css',
'type',
'duration',
'enterClass',
'leaveClass',
'appearClass',
'enterActiveClass',
'enterActiveClass',
'leaveActiveClass',
'appearActiveClass',
'enterToClass',
'leaveToClass',
'appearToClass'
]
const listenersKeys = [
'beforeEnter',
'enter',
'afterEnter',
'enterCancelled',
'beforeLeave',
'leave',
'afterLeave',
'leaveCancelled',
'beforeAppear',
'appear',
'afterAppear',
'appearCancelled'
]