mirror of
https://github.com/nuxt/nuxt.git
synced 2024-11-14 10:04:05 +00:00
683 lines
20 KiB
JavaScript
683 lines
20 KiB
JavaScript
import Vue from 'vue'
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import middleware from './middleware'
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import { createApp, NuxtError } from './index'
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import {
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applyAsyncData,
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sanitizeComponent,
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resolveRouteComponents,
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getMatchedComponents,
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getMatchedComponentsInstances,
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flatMapComponents,
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setContext,
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middlewareSeries,
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promisify,
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getLocation,
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compile,
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getQueryDiff,
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globalHandleError
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} from './utils'
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const noopData = () => { return {} }
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const noopFetch = () => {}
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// Global shared references
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let _lastPaths = []
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let app
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let router
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<% if (store) { %>let store<% } %>
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// Try to rehydrate SSR data from window
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const NUXT = window.__NUXT__ || {}
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Object.assign(Vue.config, <%= serialize(vue.config) %>)
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<% if (debug || mode === 'spa') { %>
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// Setup global Vue error handler
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const defaultErrorHandler = Vue.config.errorHandler
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Vue.config.errorHandler = (err, vm, info, ...rest) => {
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const nuxtError = {
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statusCode: err.statusCode || err.name || 'Whoops!',
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message: err.message || err.toString()
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}
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// Call other handler if exist
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let handled = null
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if (typeof defaultErrorHandler === 'function') {
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handled = defaultErrorHandler(err, vm, info, ...rest)
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}
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if (handled === true){
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return handled
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}
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// Show Nuxt Error Page
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if (vm && vm.$root && vm.$root.$nuxt && vm.$root.$nuxt.error && info !== 'render function') {
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vm.$root.$nuxt.error(nuxtError)
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}
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if (typeof defaultErrorHandler === 'function') {
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return handled
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}
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// Log to console
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if (process.env.NODE_ENV !== 'production') {
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console.error(err)
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} else {
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console.error(err.message || nuxtError.message)
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}
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}
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<% } %>
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// Create and mount App
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createApp()
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.then(mountApp)
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.catch((err) => {
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console.error('[nuxt] Error while initializing app', err)
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})
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function componentOption(component, key, ...args) {
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if (!component || !component.options || !component.options[key]) {
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return {}
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}
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const option = component.options[key]
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if (typeof option === 'function') {
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return option(...args)
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}
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return option
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}
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function mapTransitions(Components, to, from) {
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const componentTransitions = (component) => {
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const transition = componentOption(component, 'transition', to, from) || {}
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return (typeof transition === 'string' ? { name: transition } : transition)
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}
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return Components.map((Component) => {
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// Clone original object to prevent overrides
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const transitions = Object.assign({}, componentTransitions(Component))
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// Combine transitions & prefer `leave` transitions of 'from' route
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if (from && from.matched.length && from.matched[0].components.default) {
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const from_transitions = componentTransitions(from.matched[0].components.default)
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Object.keys(from_transitions)
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.filter((key) => from_transitions[key] && key.toLowerCase().indexOf('leave') !== -1)
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.forEach((key) => { transitions[key] = from_transitions[key] })
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}
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return transitions
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})
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}
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async function loadAsyncComponents (to, from, next) {
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// Check if route path changed (this._pathChanged), only if the page is not an error (for validate())
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this._pathChanged = !!app.nuxt.err || from.path !== to.path
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this._queryChanged = JSON.stringify(to.query) !== JSON.stringify(from.query)
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this._diffQuery = (this._queryChanged ? getQueryDiff(to.query, from.query) : [])
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<% if (loading) { %>
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if (this._pathChanged && this.$loading.start && !this.$loading.manual) {
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this.$loading.start()
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}
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<% } %>
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try {
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const Components = await resolveRouteComponents(to)
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<% if (loading) { %>
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if (!this._pathChanged && this._queryChanged) {
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// Add a marker on each component that it needs to refresh or not
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const startLoader = Components.some((Component) => {
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const watchQuery = Component.options.watchQuery
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if (watchQuery === true) return true
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if (Array.isArray(watchQuery)) {
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return watchQuery.some((key) => this._diffQuery[key])
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}
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return false
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})
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if (startLoader && this.$loading.start && !this.$loading.manual) {
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this.$loading.start()
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}
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}
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<% } %>
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// Call next()
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next()
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} catch (err) {
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err = err || {}
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if (/^Loading chunk (\d)+ failed\./.test(err.message)) {
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window.location.replace(location.href)
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}
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const statusCode = (err.statusCode || err.status || (err.response && err.response.status) || 500)
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this.error({ statusCode, message: err.message })
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this.$nuxt.$emit('routeChanged', to, from, err)
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next(false)
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}
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}
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function applySSRData(Component, ssrData) {
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if (NUXT.serverRendered && ssrData) {
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applyAsyncData(Component, ssrData)
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}
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Component._Ctor = Component
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return Component
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}
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// Get matched components
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function resolveComponents(router) {
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const path = getLocation(router.options.base, router.options.mode)
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return flatMapComponents(router.match(path), async (Component, _, match, key, index) => {
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// If component is not resolved yet, resolve it
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if (typeof Component === 'function' && !Component.options) {
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Component = await Component()
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}
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// Sanitize it and save it
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const _Component = applySSRData(sanitizeComponent(Component), NUXT.data ? NUXT.data[index] : null)
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match.components[key] = _Component
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return _Component
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})
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}
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function callMiddleware (Components, context, layout) {
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let midd = <%= serialize(router.middleware, { isJSON: true }) %>
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let unknownMiddleware = false
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// If layout is undefined, only call global middleware
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if (typeof layout !== 'undefined') {
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midd = [] // Exclude global middleware if layout defined (already called before)
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if (layout.middleware) {
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midd = midd.concat(layout.middleware)
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}
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Components.forEach((Component) => {
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if (Component.options.middleware) {
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midd = midd.concat(Component.options.middleware)
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}
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})
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}
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midd = midd.map((name) => {
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if (typeof name === 'function') return name
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if (typeof middleware[name] !== 'function') {
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unknownMiddleware = true
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this.error({ statusCode: 500, message: 'Unknown middleware ' + name })
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}
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return middleware[name]
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})
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if (unknownMiddleware) return
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return middlewareSeries(midd, context)
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}
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async function render (to, from, next) {
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if (this._pathChanged === false && this._queryChanged === false) return next()
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// Handle first render on SPA mode
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if (to === from) _lastPaths = []
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else {
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const fromMatches = []
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_lastPaths = getMatchedComponents(from, fromMatches).map((Component, i) => {
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return compile(from.matched[fromMatches[i]].path)(from.params)
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})
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}
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// nextCalled is true when redirected
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let nextCalled = false
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const _next = (path) => {
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<% if (loading) { %>
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if (from.path === path.path && this.$loading.finish) {
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this.$loading.finish()
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}
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<% } %>
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<% if (loading) { %>
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if (from.path !== path.path && this.$loading.pause) {
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this.$loading.pause()
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}
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<% } %>
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if (nextCalled) return
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nextCalled = true
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next(path)
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}
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// Update context
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await setContext(app, {
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route: to,
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from,
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next: _next.bind(this)
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})
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this._dateLastError = app.nuxt.dateErr
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this._hadError = !!app.nuxt.err
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// Get route's matched components
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const matches = []
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const Components = getMatchedComponents(to, matches)
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// If no Components matched, generate 404
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if (!Components.length) {
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// Default layout
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await callMiddleware.call(this, Components, app.context)
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if (nextCalled) return
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// Load layout for error page
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const layout = await this.loadLayout(
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typeof NuxtError.layout === 'function'
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? NuxtError.layout(app.context)
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: NuxtError.layout
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)
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await callMiddleware.call(this, Components, app.context, layout)
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if (nextCalled) return
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// Show error page
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app.context.error({ statusCode: 404, message: `<%= messages.error_404 %>` })
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return next()
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}
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// Update ._data and other properties if hot reloaded
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Components.forEach((Component) => {
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if (Component._Ctor && Component._Ctor.options) {
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Component.options.asyncData = Component._Ctor.options.asyncData
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Component.options.fetch = Component._Ctor.options.fetch
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}
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})
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// Apply transitions
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this.setTransitions(mapTransitions(Components, to, from))
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try {
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// Call middleware
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await callMiddleware.call(this, Components, app.context)
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if (nextCalled) return
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if (app.context._errored) return next()
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// Set layout
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let layout = Components[0].options.layout
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if (typeof layout === 'function') {
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layout = layout(app.context)
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}
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layout = await this.loadLayout(layout)
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// Call middleware for layout
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await callMiddleware.call(this, Components, app.context, layout)
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if (nextCalled) return
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if (app.context._errored) return next()
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// Call .validate()
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let isValid = true
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try {
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for (const Component of Components) {
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if (typeof Component.options.validate !== 'function') {
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continue
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}
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isValid = await Component.options.validate(app.context)
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if (!isValid) {
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break
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}
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}
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} catch (validationError) {
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// ...If .validate() threw an error
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this.error({
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statusCode: validationError.statusCode || '500',
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message: validationError.message
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})
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return next()
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}
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// ...If .validate() returned false
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if (!isValid) {
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this.error({ statusCode: 404, message: `<%= messages.error_404 %>` })
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return next()
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}
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// Call asyncData & fetch hooks on components matched by the route.
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await Promise.all(Components.map((Component, i) => {
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// Check if only children route changed
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Component._path = compile(to.matched[matches[i]].path)(to.params)
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Component._dataRefresh = false
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// Check if Component need to be refreshed (call asyncData & fetch)
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// Only if its slug has changed or is watch query changes
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if (this._pathChanged && this._queryChanged || Component._path !== _lastPaths[i]) {
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Component._dataRefresh = true
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} else if (!this._pathChanged && this._queryChanged) {
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const watchQuery = Component.options.watchQuery
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if (watchQuery === true) {
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Component._dataRefresh = true
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} else if (Array.isArray(watchQuery)) {
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Component._dataRefresh = watchQuery.some((key) => this._diffQuery[key])
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}
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}
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if (!this._hadError && this._isMounted && !Component._dataRefresh) {
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return Promise.resolve()
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}
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let promises = []
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const hasAsyncData = (
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Component.options.asyncData &&
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typeof Component.options.asyncData === 'function'
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)
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const hasFetch = !!Component.options.fetch
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<% if (loading) { %>
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const loadingIncrease = (hasAsyncData && hasFetch) ? 30 : 45
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<% } %>
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// Call asyncData(context)
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if (hasAsyncData) {
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const promise = promisify(Component.options.asyncData, app.context)
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.then((asyncDataResult) => {
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applyAsyncData(Component, asyncDataResult)
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<% if (loading) { %>
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if(this.$loading.increase) {
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this.$loading.increase(loadingIncrease)
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}
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<% } %>
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})
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promises.push(promise)
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}
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// Check disabled page loading
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this.$loading.manual = Component.options.loading === false
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// Call fetch(context)
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if (hasFetch) {
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let p = Component.options.fetch(app.context)
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if (!p || (!(p instanceof Promise) && (typeof p.then !== 'function'))) {
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p = Promise.resolve(p)
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}
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p.then((fetchResult) => {
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<% if (loading) { %>
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if (this.$loading.increase) {
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this.$loading.increase(loadingIncrease)
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}
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<% } %>
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})
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promises.push(p)
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}
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return Promise.all(promises)
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}))
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// If not redirected
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if (!nextCalled) {
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<% if (loading) { %>
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if (this.$loading.finish && !this.$loading.manual) {
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this.$loading.finish()
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}
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<% } %>
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next()
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}
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} catch (error) {
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if (!error) {
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error = {}
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} else if (error.message === 'ERR_REDIRECT') {
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return this.$nuxt.$emit('routeChanged', to, from, error)
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}
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_lastPaths = []
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const errorResponseStatus = (error.response && error.response.status)
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error.statusCode = error.statusCode || error.status || errorResponseStatus || 500
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globalHandleError(error)
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// Load error layout
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let layout = NuxtError.layout
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if (typeof layout === 'function') {
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layout = layout(app.context)
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}
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await this.loadLayout(layout)
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this.error(error)
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this.$nuxt.$emit('routeChanged', to, from, error)
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next(false)
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}
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}
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// Fix components format in matched, it's due to code-splitting of vue-router
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function normalizeComponents (to, ___) {
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flatMapComponents(to, (Component, _, match, key) => {
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if (typeof Component === 'object' && !Component.options) {
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// Updated via vue-router resolveAsyncComponents()
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Component = Vue.extend(Component)
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Component._Ctor = Component
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match.components[key] = Component
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}
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return Component
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})
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}
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function showNextPage(to) {
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// Hide error component if no error
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if (this._hadError && this._dateLastError === this.$options.nuxt.dateErr) {
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this.error()
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}
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// Set layout
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let layout = this.$options.nuxt.err
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? NuxtError.layout
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: to.matched[0].components.default.options.layout
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if (typeof layout === 'function') {
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layout = layout(app.context)
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}
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this.setLayout(layout)
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}
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// When navigating on a different route but the same component is used, Vue.js
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// Will not update the instance data, so we have to update $data ourselves
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function fixPrepatch(to, ___) {
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if (this._pathChanged === false && this._queryChanged === false) return
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Vue.nextTick(() => {
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const matches = []
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const instances = getMatchedComponentsInstances(to, matches)
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const Components = getMatchedComponents(to, matches)
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instances.forEach((instance, i) => {
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if (!instance) return
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// if (
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// !this._queryChanged &&
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// to.matched[matches[i]].path.indexOf(':') === -1 &&
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// to.matched[matches[i]].path.indexOf('*') === -1
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// ) return // If not a dynamic route, skip
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if (
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instance.constructor._dataRefresh &&
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Components[i] === instance.constructor &&
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typeof instance.constructor.options.data === 'function'
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) {
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const newData = instance.constructor.options.data.call(instance)
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for (let key in newData) {
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Vue.set(instance.$data, key, newData[key])
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}
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}
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})
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showNextPage.call(this, to)
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<% if (isDev) { %>
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// Hot reloading
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setTimeout(() => hotReloadAPI(this), 100)
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<% } %>
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})
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}
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function nuxtReady (_app) {
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window._nuxtReadyCbs.forEach((cb) => {
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if (typeof cb === 'function') {
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cb(_app)
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}
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})
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// Special JSDOM
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if (typeof window._onNuxtLoaded === 'function') {
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window._onNuxtLoaded(_app)
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}
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// Add router hooks
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router.afterEach((to, from) => {
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// Wait for fixPrepatch + $data updates
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Vue.nextTick(() => _app.$nuxt.$emit('routeChanged', to, from))
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})
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}
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<% if (isDev) { %>
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// Special hot reload with asyncData(context)
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function getNuxtChildComponents($parent, $components = []) {
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$parent.$children.forEach(($child) => {
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if ($child.$vnode.data.nuxtChild && !$components.find(c =>(c.$options.__file === $child.$options.__file))) {
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$components.push($child)
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}
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if ($child.$children && $child.$children.length) {
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getNuxtChildComponents($child, $components)
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}
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})
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return $components
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}
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function hotReloadAPI (_app) {
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if (!module.hot) return
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let $components = getNuxtChildComponents(_app.$nuxt, [])
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$components.forEach(addHotReload.bind(_app))
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}
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function addHotReload ($component, depth) {
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if ($component.$vnode.data._hasHotReload) return
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$component.$vnode.data._hasHotReload = true
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var _forceUpdate = $component.$forceUpdate.bind($component.$parent)
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$component.$vnode.context.$forceUpdate = async () => {
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let Components = getMatchedComponents(router.currentRoute)
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let Component = Components[depth]
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if (!Component) return _forceUpdate()
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if (typeof Component === 'object' && !Component.options) {
|
|
// Updated via vue-router resolveAsyncComponents()
|
|
Component = Vue.extend(Component)
|
|
Component._Ctor = Component
|
|
}
|
|
this.error()
|
|
let promises = []
|
|
const next = function (path) {
|
|
<%= (loading ? 'this.$loading.finish && this.$loading.finish()' : '') %>
|
|
router.push(path)
|
|
}
|
|
await setContext(app, {
|
|
route: router.currentRoute,
|
|
isHMR: true,
|
|
next: next.bind(this)
|
|
})
|
|
const context = app.context
|
|
<% if (loading) { %>
|
|
if (this.$loading.start && !this.$loading.manual) this.$loading.start()
|
|
<% } %>
|
|
callMiddleware.call(this, Components, context)
|
|
.then(() => {
|
|
// If layout changed
|
|
if (depth !== 0) return Promise.resolve()
|
|
let layout = Component.options.layout || 'default'
|
|
if (typeof layout === 'function') {
|
|
layout = layout(context)
|
|
}
|
|
if (this.layoutName === layout) return Promise.resolve()
|
|
let promise = this.loadLayout(layout)
|
|
promise.then(() => {
|
|
this.setLayout(layout)
|
|
Vue.nextTick(() => hotReloadAPI(this))
|
|
})
|
|
return promise
|
|
})
|
|
.then(() => {
|
|
return callMiddleware.call(this, Components, context, this.layout)
|
|
})
|
|
.then(() => {
|
|
// Call asyncData(context)
|
|
let pAsyncData = promisify(Component.options.asyncData || noopData, context)
|
|
pAsyncData.then((asyncDataResult) => {
|
|
applyAsyncData(Component, asyncDataResult)
|
|
<%= (loading ? 'this.$loading.increase && this.$loading.increase(30)' : '') %>
|
|
})
|
|
promises.push(pAsyncData)
|
|
// Call fetch()
|
|
Component.options.fetch = Component.options.fetch || noopFetch
|
|
let pFetch = Component.options.fetch(context)
|
|
if (!pFetch || (!(pFetch instanceof Promise) && (typeof pFetch.then !== 'function'))) { pFetch = Promise.resolve(pFetch) }
|
|
<%= (loading ? 'pFetch.then(() => this.$loading.increase && this.$loading.increase(30))' : '') %>
|
|
promises.push(pFetch)
|
|
return Promise.all(promises)
|
|
})
|
|
.then(() => {
|
|
<%= (loading ? 'this.$loading.finish && this.$loading.finish()' : '') %>
|
|
_forceUpdate()
|
|
setTimeout(() => hotReloadAPI(this), 100)
|
|
})
|
|
}
|
|
}
|
|
<% } %>
|
|
|
|
async function mountApp(__app) {
|
|
// Set global variables
|
|
app = __app.app
|
|
router = __app.router
|
|
<% if (store) { %>store = __app.store <% } %>
|
|
|
|
// Resolve route components
|
|
const Components = await Promise.all(resolveComponents(router))
|
|
|
|
// Create Vue instance
|
|
const _app = new Vue(app)
|
|
|
|
<% if (mode !== 'spa') { %>
|
|
// Load layout
|
|
const layout = NUXT.layout || 'default'
|
|
await _app.loadLayout(layout)
|
|
_app.setLayout(layout)
|
|
<% } %>
|
|
|
|
// Mounts Vue app to DOM element
|
|
const mount = () => {
|
|
_app.$mount('#__nuxt')
|
|
|
|
// Listen for first Vue update
|
|
Vue.nextTick(() => {
|
|
// Call window.onNuxtReady callbacks
|
|
nuxtReady(_app)
|
|
<% if (isDev) { %>
|
|
// Enable hot reloading
|
|
hotReloadAPI(_app)
|
|
<% } %>
|
|
})
|
|
}
|
|
|
|
// Enable transitions
|
|
_app.setTransitions = _app.$options.nuxt.setTransitions.bind(_app)
|
|
if (Components.length) {
|
|
_app.setTransitions(mapTransitions(Components, router.currentRoute))
|
|
_lastPaths = router.currentRoute.matched.map(route => compile(route.path)(router.currentRoute.params))
|
|
}
|
|
|
|
// Initialize error handler
|
|
_app.$loading = {} // To avoid error while _app.$nuxt does not exist
|
|
if (NUXT.error) _app.error(NUXT.error)
|
|
|
|
// Add router hooks
|
|
router.beforeEach(loadAsyncComponents.bind(_app))
|
|
router.beforeEach(render.bind(_app))
|
|
router.afterEach(normalizeComponents)
|
|
router.afterEach(fixPrepatch.bind(_app))
|
|
|
|
// If page already is server rendered
|
|
if (NUXT.serverRendered) {
|
|
mount()
|
|
return
|
|
}
|
|
|
|
// First render on client-side
|
|
render.call(_app, router.currentRoute, router.currentRoute, (path) => {
|
|
// If not redirected
|
|
if (!path) {
|
|
normalizeComponents(router.currentRoute, router.currentRoute)
|
|
showNextPage.call(_app, router.currentRoute)
|
|
// Dont call fixPrepatch.call(_app, router.currentRoute, router.currentRoute) since it's first render
|
|
mount()
|
|
return
|
|
}
|
|
|
|
// Push the path and then mount app
|
|
router.push(path, () => mount(), (err) => {
|
|
if (!err) return mount()
|
|
console.error(err)
|
|
})
|
|
})
|
|
}
|