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Add pagination docs
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‎.generated-examples/content2componentspaginationExample0.vue

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<script setup lang="ts">
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import { ref } from 'vue'
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const pageNumber = ref(2)
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</script>
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<template>
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<gv-pagination v-model="pageNumber" :total-pages="3"/>
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<gv-pagination :total-pages="3"/>
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</template>

‎.generated-examples/content2componentspaginationExample1.vue

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<script setup lang="ts">
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import { ref } from 'vue'
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const currentPage = ref(1)
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</script>
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<template>
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<gv-inset-text aria-live="polite">
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You are on page {{ currentPage }}
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</gv-inset-text>
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<gv-pagination v-model:currentPage="currentPage" :total-pages="3"/>
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</template>

‎.generated-examples/content2componentspaginationExample2.vue

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<script setup lang="ts">
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import { computed } from 'vue'
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import type { Ref } from 'vue'
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const pages = [
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{ title: 'Content page A', content: 'This is content page A' },
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{ title: 'Content page B', content: 'This is content page B' },
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{ title: 'Content page C', content: 'This is content page C' },
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]
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const currentPageIndex = ref(0)
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const contentElement: Ref<HTMLDivElement | null> = ref(null)
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const currentPage = computed(() => {
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return pages[currentPageIndex.value]
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})
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const previousPage = computed(() => {
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if(currentPageIndex.value > 0) {
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return pages[currentPageIndex.value-1]
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}
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return null
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})
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const nextPage = computed(() => {
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if(currentPageIndex.value < pages.length-1) {
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return pages[currentPageIndex.value+1]
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}
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return null
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})
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function handlePreviousClicked() {
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if(currentPageIndex.value > 0) {
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currentPageIndex.value--
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focusContent()
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}
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}
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function handleNextClicked() {
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if(currentPageIndex.value < pages.length-1) {
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currentPageIndex.value++
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focusContent()
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}
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}
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/* When the user changes page, we focus on the main content for accessibility.
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Screen reader users will hear the new page content being read, and the focus
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position will be in the right place for keyboard-only users to tab through the
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content.
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*/
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function focusContent() {
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if(contentElement.value) {
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contentElement.value.focus()
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}
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}
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</script>
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<template>
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<div ref="contentElement" tabindex="-1">
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<h1 class="govuk-heading-l">
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{{ currentPage.title }}
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</h1>
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<p class="govuk-body">
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{{ currentPage.content }}
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</p>
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</div>
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<gv-pagination
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:previous-text="previousPage ? 'Previous' : ''"
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:previous-label="previousPage ? previousPage.title : null"
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:next-text="nextPage ? 'Next' : ''"
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:next-label="nextPage ? nextPage.title : null"
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@previousClicked="handlePreviousClicked"
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@nextClicked="handleNextClicked"
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/>
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</template>

‎.generated-examples/content2componentspaginationExample3.vue

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<script setup lang="ts">
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import { computed, watch } from 'vue'
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import type { Ref } from 'vue'
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const pages = [
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{ title: 'Content page A', content: 'This is content page A' },
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{ title: 'Content page B', content: 'This is content page B' },
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{ title: 'Content page C', content: 'This is content page C' },
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]
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// The current-page prop is 1-indexed - we will need to account for that when accessing the pages[] array
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const currentPageNumber = ref(1)
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const contentElement: Ref<HTMLDivElement | null> = ref(null)
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const currentPage = computed(() => {
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return pages[currentPageNumber.value - 1]
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})
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const previousPage = computed(() => {
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if(currentPageNumber.value > 1) {
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return pages[currentPageNumber.value-2]
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}
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return null
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})
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const nextPage = computed(() => {
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if(currentPageNumber.value < pages.length) {
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return pages[currentPageNumber.value]
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}
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return null
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})
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/* When the user changes page, we focus on the main content for accessibility.
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Screen reader users will hear the new page content being read, and the focus
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position will be in the right place for keyboard-only users to tab through the
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content.
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*/
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watch(currentPageNumber, () => {
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if(contentElement.value) {
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contentElement.value.focus()
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}
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})
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</script>
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<template>
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<div ref="contentElement" tabindex="-1">
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<h1 class="govuk-heading-l">
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{{ currentPage.title }}
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</h1>
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<p class="govuk-body">
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{{ currentPage.content }}
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</p>
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</div>
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<gv-pagination
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variant="block"
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v-model:current-page="currentPageNumber"
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:total-pages="3"
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:previous-label="previousPage ? previousPage.title : null"
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:next-label="nextPage ? nextPage.title : null"
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/>
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</template>

‎.generated-examples/content2componentspaginationExample4.vue

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<template>
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<gv-pagination
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:total-pages="3"
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page-href="#page-${pageNumber}"
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/>
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</template>

‎content/2.components/pagination.md

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See the [GOV.UK Design System documentation on pagination](https://design-system.service.gov.uk/components/pagination/) for
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more information on when to use this component.
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```vue
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<gv-pagination :total-pages="3"/>
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```
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## Setting and monitoring the current page number
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Your page will probably need to know the number of the current page so that it can render its content. You can bind a
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ref with `v-model:current-page` to set the current page when the pagination component is mounted and monitor when the user
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selects a different page.
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```vue
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<script setup lang="ts">
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import { ref } from 'vue'
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const pageNumber = ref(2)
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const currentPage = ref(1)
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</script>
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<template>
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<gv-inset-text aria-live="polite">
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You are on page {{ currentPage }}
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</gv-inset-text>
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<gv-pagination v-model:currentPage="currentPage" :total-pages="3"/>
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</template>
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```
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## For navigating between content pages
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Use the ‘block’ style of pagination to let users navigate through related content that has been split across multiple pages.
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You can use link labels to give context on what the neighbouring pages are about. Use the `previous-label` and `next-label` props.
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You can use block-style pagination with or without passing `total-pages`.
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### Without `total-pages`
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Block-style pagination will be used by default if you don't pass the `total-pages` prop. Listen to the `previousClicked`
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and `nextClicked` events to know when to change pages. Pass an empty string to `previous-text` and `next-text` to hide
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the Previous/Next links as appropriate.
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```vue
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<script setup lang="ts">
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import { computed } from 'vue'
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import type { Ref } from 'vue'
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const pages = [
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{ title: 'Content page A', content: 'This is content page A' },
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{ title: 'Content page B', content: 'This is content page B' },
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{ title: 'Content page C', content: 'This is content page C' },
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]
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const currentPageIndex = ref(0)
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const contentElement: Ref<HTMLDivElement | null> = ref(null)
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const currentPage = computed(() => {
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return pages[currentPageIndex.value]
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})
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const previousPage = computed(() => {
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if(currentPageIndex.value > 0) {
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return pages[currentPageIndex.value-1]
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}
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return null
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})
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const nextPage = computed(() => {
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if(currentPageIndex.value < pages.length-1) {
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return pages[currentPageIndex.value+1]
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}
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return null
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})
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function handlePreviousClicked() {
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if(currentPageIndex.value > 0) {
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currentPageIndex.value--
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focusContent()
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}
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}
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function handleNextClicked() {
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if(currentPageIndex.value < pages.length-1) {
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currentPageIndex.value++
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focusContent()
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}
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}
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/* When the user changes page, we focus on the main content for accessibility.
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Screen reader users will hear the new page content being read, and the focus
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position will be in the right place for keyboard-only users to tab through the
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content.
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*/
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function focusContent() {
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if(contentElement.value) {
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contentElement.value.focus()
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}
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}
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</script>
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<template>
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<gv-pagination v-model="pageNumber" :total-pages="3"/>
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<div ref="contentElement" tabindex="-1">
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<h1 class="govuk-heading-l">
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{{ currentPage.title }}
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</h1>
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<p class="govuk-body">
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{{ currentPage.content }}
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</p>
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</div>
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<gv-pagination
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:previous-text="previousPage ? 'Previous' : ''"
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:previous-label="previousPage ? previousPage.title : null"
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:next-text="nextPage ? 'Next' : ''"
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:next-label="nextPage ? nextPage.title : null"
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@previousClicked="handlePreviousClicked"
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@nextClicked="handleNextClicked"
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/>
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</template>
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```
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### With `total-pages`
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If you pass a value for `total-pages`, the pagination will show as a list of page numbers by default. You can override
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this by passing `variant="block"`.
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```vue
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<script setup lang="ts">
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import { computed, watch } from 'vue'
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import type { Ref } from 'vue'
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const pages = [
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{ title: 'Content page A', content: 'This is content page A' },
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{ title: 'Content page B', content: 'This is content page B' },
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{ title: 'Content page C', content: 'This is content page C' },
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]
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// The current-page prop is 1-indexed - we will need to account for that when accessing the pages[] array
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const currentPageNumber = ref(1)
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const contentElement: Ref<HTMLDivElement | null> = ref(null)
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const currentPage = computed(() => {
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return pages[currentPageNumber.value - 1]
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})
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const previousPage = computed(() => {
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if(currentPageNumber.value > 1) {
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return pages[currentPageNumber.value-2]
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}
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return null
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})
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const nextPage = computed(() => {
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if(currentPageNumber.value < pages.length) {
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return pages[currentPageNumber.value]
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}
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return null
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})
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/* When the user changes page, we focus on the main content for accessibility.
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Screen reader users will hear the new page content being read, and the focus
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position will be in the right place for keyboard-only users to tab through the
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content.
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*/
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watch(currentPageNumber, () => {
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if(contentElement.value) {
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contentElement.value.focus()
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}
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})
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</script>
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<template>
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<div ref="contentElement" tabindex="-1">
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<h1 class="govuk-heading-l">
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{{ currentPage.title }}
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</h1>
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<p class="govuk-body">
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{{ currentPage.content }}
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</p>
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</div>
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<gv-pagination
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variant="block"
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v-model:current-page="currentPageNumber"
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:total-pages="3"
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:previous-label="previousPage ? previousPage.title : null"
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:next-label="nextPage ? nextPage.title : null"
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/>
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</template>
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```
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## Adding URLs to the links
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We strongly recommend that you pass a URL to `page-href` (and `previous-href`/`next-href` if using block style) so that the
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pagination links can function as normal links. This will allow users to:
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* open pagination links in new tabs
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* use the browser back button
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* share links to specific pages
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Include the `${pageNumber}` placeholder in the URL you pass. The placeholder will be replaced with the appropriate number
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for each page, starting from `1`. It's up to you how you use the page number in the URL - it could be in the query string,
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the hash or as part of the path.
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Before the component is rendered, you should parse the page number from the URL and pass it to the pagination component
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with `v-model:current-page` (not shown in this example).
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```vue
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<gv-pagination
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:total-pages="3"
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page-href="#page-${pageNumber}"
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/>
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```
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If you're using block mode without passing `total-pages` you can also pass `previous-href` and `next-href`.
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You can [use router-link or nuxt-link](/get-started/using-router-link-or-nuxt-link) for your navigation links if needed using the `link-component` prop.
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::gvd-options{component="Pagination"}

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