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feat(nuxt): expose useLink
from NuxtLink
(#26522)
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@ -7,7 +7,7 @@ import type {
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VNodeProps,
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} from 'vue'
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import { computed, defineComponent, h, inject, onBeforeUnmount, onMounted, provide, ref, resolveComponent } from 'vue'
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import type { RouteLocation, RouteLocationRaw, Router, RouterLinkProps } from '#vue-router'
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import type { RouteLocation, RouteLocationRaw, Router, RouterLink, RouterLinkProps, useLink } from '#vue-router'
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import { hasProtocol, joinURL, parseQuery, parseURL, withTrailingSlash, withoutTrailingSlash } from 'ufo'
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import { preloadRouteComponents } from '../composables/preload'
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import { onNuxtReady } from '../composables/ready'
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@ -120,6 +120,79 @@ export function defineNuxtLink (options: NuxtLinkOptions) {
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return resolvedPath
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}
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function useNuxtLink (props: NuxtLinkProps) {
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const router = useRouter()
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const config = useRuntimeConfig()
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// Resolving `to` value from `to` and `href` props
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const to: ComputedRef<string | RouteLocationRaw> = computed(() => {
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checkPropConflicts(props, 'to', 'href')
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const path = props.to || props.href || '' // Defaults to empty string (won't render any `href` attribute)
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return resolveTrailingSlashBehavior(path, router.resolve)
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})
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// Lazily check whether to.value has a protocol
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const isAbsoluteUrl = computed(() => typeof to.value === 'string' && hasProtocol(to.value, { acceptRelative: true }))
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// Resolves `to` value if it's a route location object
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const href = computed(() => (typeof to.value === 'object'
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? router.resolve(to.value)?.href ?? null
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: (to.value && !props.external && !isAbsoluteUrl.value)
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? resolveTrailingSlashBehavior(joinURL(config.app.baseURL, to.value), router.resolve) as string
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: to.value
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))
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const builtinRouterLink = resolveComponent('RouterLink') as string | typeof RouterLink
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const useBuiltinLink = builtinRouterLink && typeof builtinRouterLink !== 'string' ? builtinRouterLink.useLink : undefined
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const link = useBuiltinLink?.({
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...props,
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to: to.value,
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})
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const hasTarget = computed(() => props.target && props.target !== '_self')
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// Resolving link type
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const isExternal = computed<boolean>(() => {
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// External prop is explicitly set
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if (props.external) {
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return true
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}
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// When `target` prop is set, link is external
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if (hasTarget.value) {
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return true
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}
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// When `to` is a route object then it's an internal link
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if (typeof to.value === 'object') {
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return false
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}
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return to.value === '' || isAbsoluteUrl.value
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})
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return {
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to,
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hasTarget,
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isAbsoluteUrl,
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isExternal,
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//
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href,
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isActive: link?.isActive ?? computed(() => to.value === router.currentRoute.value.path),
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isExactActive: link?.isExactActive ?? computed(() => to.value === router.currentRoute.value.path),
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route: link?.route ?? computed(() => router.resolve(to.value)),
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async navigate () {
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await navigateTo(href.value, { replace: props.replace, external: props.external })
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},
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} satisfies ReturnType<typeof useLink> & {
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to: ComputedRef<string | RouteLocationRaw>
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hasTarget: ComputedRef<boolean | null | undefined>
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isAbsoluteUrl: ComputedRef<boolean>
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isExternal: ComputedRef<boolean>
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}
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}
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return defineComponent({
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name: componentName,
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props: {
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@ -207,43 +280,11 @@ export function defineNuxtLink (options: NuxtLinkOptions) {
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required: false,
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},
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},
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useLink: useNuxtLink,
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setup (props, { slots }) {
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const router = useRouter()
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const config = useRuntimeConfig()
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// Resolving `to` value from `to` and `href` props
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const to: ComputedRef<string | RouteLocationRaw> = computed(() => {
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checkPropConflicts(props, 'to', 'href')
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const path = props.to || props.href || '' // Defaults to empty string (won't render any `href` attribute)
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return resolveTrailingSlashBehavior(path, router.resolve)
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})
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// Lazily check whether to.value has a protocol
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const isAbsoluteUrl = computed(() => typeof to.value === 'string' && hasProtocol(to.value, { acceptRelative: true }))
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const hasTarget = computed(() => props.target && props.target !== '_self')
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// Resolving link type
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const isExternal = computed<boolean>(() => {
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// External prop is explicitly set
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if (props.external) {
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return true
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}
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// When `target` prop is set, link is external
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if (hasTarget.value) {
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return true
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}
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// When `to` is a route object then it's an internal link
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if (typeof to.value === 'object') {
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return false
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}
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return to.value === '' || isAbsoluteUrl.value
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})
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const { to, href, navigate, isExternal, hasTarget, isAbsoluteUrl } = useNuxtLink(props)
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// Prefetching
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const prefetched = ref(false)
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@ -323,14 +364,6 @@ export function defineNuxtLink (options: NuxtLinkOptions) {
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)
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}
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// Resolves `to` value if it's a route location object
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// converts `""` to `null` to prevent the attribute from being added as empty (`href=""`)
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const href = typeof to.value === 'object'
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? router.resolve(to.value)?.href ?? null
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: (to.value && !props.external && !isAbsoluteUrl.value)
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? resolveTrailingSlashBehavior(joinURL(config.app.baseURL, to.value), router.resolve) as string
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: to.value || null
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// Resolves `target` value
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const target = props.target || null
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@ -353,15 +386,13 @@ export function defineNuxtLink (options: NuxtLinkOptions) {
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return null
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}
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const navigate = () => navigateTo(href, { replace: props.replace, external: props.external })
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return slots.default({
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href,
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href: href.value,
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navigate,
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get route () {
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if (!href) { return undefined }
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if (!href.value) { return undefined }
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const url = parseURL(href)
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const url = parseURL(href.value)
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return {
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path: url.pathname,
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fullPath: url.pathname,
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@ -372,7 +403,7 @@ export function defineNuxtLink (options: NuxtLinkOptions) {
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matched: [],
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redirectedFrom: undefined,
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meta: {},
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href,
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href: href.value,
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} satisfies RouteLocation & { href: string }
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},
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rel,
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@ -383,7 +414,8 @@ export function defineNuxtLink (options: NuxtLinkOptions) {
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})
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}
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return h('a', { ref: el, href, rel, target }, slots.default?.())
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// converts `""` to `null` to prevent the attribute from being added as empty (`href=""`)
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return h('a', { ref: el, href: href.value || null, rel, target }, slots.default?.())
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}
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},
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}) as unknown as DefineComponent<NuxtLinkProps>
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@ -771,6 +771,43 @@ describe('nuxt links', () => {
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await page.waitForFunction(() => window.scrollY === 0)
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await page.close()
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})
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it('useLink works', async () => {
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const html = await $fetch('/nuxt-link/use-link')
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expect(html).toContain('<div>useLink in NuxtLink: true</div>')
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expect(html).toContain('<div>route using useLink: /nuxt-link/trailing-slash</div>')
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expect(html).toContain('<div>href using useLink: /nuxt-link/trailing-slash</div>')
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expect(html).toContain('<div>useLink2 in NuxtLink: true</div>')
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expect(html).toContain('<div>route2 using useLink: /nuxt-link/trailing-slash</div>')
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expect(html).toContain('<div>href2 using useLink: /nuxt-link/trailing-slash</div>')
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expect(html).toContain('<div>useLink3 in NuxtLink: true</div>')
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expect(html).toContain('<div>route3 using useLink: /nuxt-link/trailing-slash</div>')
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expect(html).toContain('<div>href3 using useLink: /nuxt-link/trailing-slash</div>')
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})
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it('useLink navigate importing NuxtLink works', async () => {
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const page = await createPage('/nuxt-link/use-link')
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await page.waitForFunction(() => window.useNuxtApp?.()._route.fullPath === '/nuxt-link/use-link')
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await page.locator('#button1').click()
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await page.waitForFunction(path => window.useNuxtApp?.()._route.fullPath === path, '/nuxt-link/trailing-slash')
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await page.close()
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})
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it('useLink navigate using resolveComponent works', async () => {
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const page = await createPage('/nuxt-link/use-link')
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await page.waitForFunction(() => window.useNuxtApp?.()._route.fullPath === '/nuxt-link/use-link')
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await page.locator('#button2').click()
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await page.waitForFunction(path => window.useNuxtApp?.()._route.fullPath === path, '/nuxt-link/trailing-slash')
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await page.close()
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})
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it('useLink navigate using resolveDynamicComponent works', async () => {
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const page = await createPage('/nuxt-link/use-link')
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await page.waitForFunction(() => window.useNuxtApp?.()._route.fullPath === '/nuxt-link/use-link')
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await page.locator('#button3').click()
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await page.waitForFunction(path => window.useNuxtApp?.()._route.fullPath === path, '/nuxt-link/trailing-slash')
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await page.close()
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})
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})
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describe('head tags', () => {
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53
test/fixtures/basic/pages/nuxt-link/use-link.vue
vendored
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53
test/fixtures/basic/pages/nuxt-link/use-link.vue
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@ -0,0 +1,53 @@
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<script setup lang="ts">
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import { resolveDynamicComponent } from 'vue'
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import { NuxtLink } from '#components'
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const useLinkPresent = 'useLink' in NuxtLink
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const link = useLinkPresent ? NuxtLink.useLink({ to: '/nuxt-link/trailing-slash' }) : undefined
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const route = computed(() => link?.route.value.path)
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const href = computed(() => link?.href.value)
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const NuxtLink2 = resolveComponent('NuxtLinkAlias') as unknown as any
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const useLink2Present = typeof NuxtLink2 !== 'string' && 'useLink' in NuxtLink2
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const link2 = useLink2Present ? NuxtLink2.useLink({ to: '/nuxt-link/trailing-slash' }) : undefined
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const route2 = computed(() => link2?.route.value.path)
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const href2 = computed(() => link2?.href.value)
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const NuxtLink3 = resolveDynamicComponent('NuxtLinkAlias') as unknown as any
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const useLink3Present = typeof NuxtLink3 !== 'string' && 'useLink' in NuxtLink3
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const link3 = useLink3Present ? NuxtLink3.useLink({ to: '/nuxt-link/trailing-slash' }) : undefined
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const route3 = computed(() => link3?.route.value.path)
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const href3 = computed(() => link3?.href.value)
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</script>
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<template>
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<div>
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<div>useLink in NuxtLink: {{ useLinkPresent }}</div>
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<div>route using useLink: {{ route }}</div>
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<div>href using useLink: {{ href }}</div>
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<button
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id="button1"
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@click="link?.navigate()"
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>
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Test
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</button>
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<div>useLink2 in NuxtLink: {{ useLink2Present }}</div>
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<div>route2 using useLink: {{ route2 }}</div>
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<div>href2 using useLink: {{ href2 }}</div>
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<button
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id="button2"
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@click="link2?.navigate()"
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>
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Test
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</button>
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<div>useLink3 in NuxtLink: {{ useLink3Present }}</div>
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<div>route3 using useLink: {{ route3 }}</div>
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<div>href3 using useLink: {{ href3 }}</div>
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<button
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id="button3"
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@click="link3?.navigate()"
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>
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Test
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</button>
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</div>
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</template>
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5
test/fixtures/basic/plugins/add-nuxt-link-alias.ts
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5
test/fixtures/basic/plugins/add-nuxt-link-alias.ts
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@ -0,0 +1,5 @@
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import { NuxtLink } from '#components'
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export default defineNuxtPlugin((nuxtApp) => {
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nuxtApp.vueApp.component('NuxtLinkAlias', NuxtLink)
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})
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