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Pagination

Pagination is an interface that allows navigating between pages that contain split information, instead of being shown on a single page.

Properties

Installation

To use the pagination machine in your project, run the following command in your command line:

npm install @zag-js/pagination @zag-js/react
# or
yarn add @zag-js/pagination @zag-js/react

Anatomy

To set up the pagination correctly, you'll need to understand its anatomy and how we name its parts.

Each part includes a data-part attribute to help identify them in the DOM.

Usage

First, import the pagination package into your project

import * as pagination from "@zag-js/pagination"

The pagination package exports two key functions:

  • machine — The state machine logic for the pagination widget.
  • connect — The function that translates the machine's state to JSX attributes and event handlers.

You'll also need to provide a unique id to the useMachine hook. This is used to ensure that every part has a unique identifier.

import * as pagination from "@zag-js/pagination"
import { useMachine, normalizeProps } from "@zag-js/react"
import { data } from "./data"

function Pagination() {
  const service = useMachine(pagination.machine, {
    id: "1",
    count: data.length,
  })

  const api = pagination.connect(service, normalizeProps)

  return (
    <div>
      {api.totalPages > 1 && (
        <nav {...api.getRootProps()}>
          <ul>
            <li>
              <a href="#previous" {...api.getPrevTriggerProps()}>
                Previous <span className="visually-hidden">Page</span>
              </a>
            </li>
            {api.pages.map((page, i) => {
              if (page.type === "page")
                return (
                  <li key={page.value}>
                    <a href={`#${page.value}`} {...api.getItemProps(page)}>
                      {page.value}
                    </a>
                  </li>
                )
              else
                return (
                  <li key={`ellipsis-${i}`}>
                    <span {...api.getEllipsisProps({ index: i })}>&#8230;</span>
                  </li>
                )
            })}
            <li>
              <a href="#next" {...api.getNextTriggerProps()}>
                Next <span className="visually-hidden">Page</span>
              </a>
            </li>
          </ul>
        </nav>
      )}
    </div>
  )
}

const api = connect(service)

// You can slice the data, to get data for current page
const currentPageData = data.slice(api.pageRange.start, api.pageRange.end)

api.page
// => 1

api.setPage(3)
// page => 3

api.previousPage
// => 2

api.nextPage
// => 4

api.pages
/*
    [
      {
        "type": "page",
        "value": 1,
      },
      {
        "type": "page",
        "value": 2,
      },
      {
        "type": "ellipsis",
      },
      {
        "type": "page",
        "value": 3,
      },
      {
        "type": "page",
        "value": 4,
      },
    ]
*/

api.pageRange
// => { start: 4, end: 13 }

Styling guide

Earlier, we mentioned that each pagination part has a data-part attribute added to them to select and style them in the DOM.

[data-part="root"] {
  /* styles for the pagination's root */
}

[data-part="item"] {
  /* styles for the pagination's items */
}

[data-part="ellipsis"] {
  /* styles for the pagination's ellipsis */
}

[data-part="prev-trigger"] {
  /* styles for the pagination's previous page trigger */
}

[data-part="next-trigger"] {
  /* styles for the pagination's next page trigger */
}

/* We add a data-disabled attribute to the prev/next items when on the first/last page  */

[data-part="prev-trigger"][data-disabled] {
  /* styles for the pagination's previous page trigger when on first page */
}

[data-part="next-trigger"][data-disabled] {
  /* styles for the pagination's next page trigger when on first page */
}

Methods and Properties

Machine Context

The pagination machine exposes the following context properties:

  • idsPartial<{ root: string; ellipsis(index: number): string; prevTrigger: string; nextTrigger: string; item(page: number): string; }>The ids of the elements in the accordion. Useful for composition.
  • translationsIntlTranslationsSpecifies the localized strings that identifies the accessibility elements and their states
  • countnumberTotal number of data items
  • pageSizenumberThe controlled number of data items per page
  • defaultPageSizenumberThe initial number of data items per page when rendered. Use when you don't need to control the page size of the pagination.
  • siblingCountnumberNumber of pages to show beside active page
  • pagenumberThe controlled active page
  • defaultPagenumberThe initial active page when rendered. Use when you don't need to control the active page of the pagination.
  • onPageChange(details: PageChangeDetails) => voidCalled when the page number is changed
  • onPageSizeChange(details: PageSizeChangeDetails) => voidCalled when the page size is changed
  • type"button" | "link"The type of the trigger element
  • dir"ltr" | "rtl"The document's text/writing direction.
  • idstringThe unique identifier of the machine.
  • getRootNode() => ShadowRoot | Node | DocumentA root node to correctly resolve document in custom environments. E.x.: Iframes, Electron.

Machine API

The pagination api exposes the following methods:

  • pagenumberThe current page.
  • countnumberThe total number of data items.
  • pageSizenumberThe number of data items per page.
  • totalPagesnumberThe total number of pages.
  • pagesPagesThe page range. Represented as an array of page numbers (including ellipsis)
  • previousPagenumberThe previous page.
  • nextPagenumberThe next page.
  • pageRangePageRangeThe page range. Represented as an object with `start` and `end` properties.
  • slice<V>(data: V[]) => V[]Function to slice an array of data based on the current page.
  • setPageSize(size: number) => voidFunction to set the page size.
  • setPage(page: number) => voidFunction to set the current page.
  • goToNextPage() => voidFunction to go to the next page.
  • goToPrevPage() => voidFunction to go to the previous page.
  • goToFirstPage() => voidFunction to go to the first page.
  • goToLastPage() => voidFunction to go to the last page.

Data Attributes

Item
data-scope
pagination
data-part
item
data-index
The index of the item
data-selected
Present when selected
PrevTrigger
data-scope
pagination
data-part
prev-trigger
data-disabled
Present when disabled
NextTrigger
data-scope
pagination
data-part
next-trigger
data-disabled
Present when disabled

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