react-chrono

<div align="center"> <img src="./readme-assets/social-logo-small.png" /> <br/> <br/>

<a href="https://5f985eb478dcb00022cfd60e-hqwgomhkqw.chromatic.com/?path=/story/example-vertical--vertical-basic" target="_blank"><img src="https://raw.githubusercontent.com/storybooks/brand/master/badge/badge-storybook.svg"></a>

<div> <img src="./readme-assets/new-image.png" /> </div> </div> <!-- **Try it on CodeSandbox!** [](https://codesandbox.io/s/react-chrono-bg56e?fontsize=14&hidenavigation=1&theme=dark) --> <h2>Features</h2>

• 🚥 Render timelines in three different modes (Horizontal, Vertical, Vertical-Alternating).
• 📺  Auto play the timeline with the slideshow mode.
• 🖼️  Display Images & Videos in the timeline with ease.
• ⌨  Keyboard accessible.
• 🔧  Render custom content easily.
• 🌿  Nested timelines.
• ⚡  Data driven API.
• 🎨  Customize colors with ease.
• 🎭  Use custom icons in the timeline.
• 💪  Built with Typescript.
• 🎨  Styled with emotion.

<h2>Table of Contents</h2>

• ⚡ Installation
• Getting Started
  • 🚥Vertical Mode
  • 🚥Vertical Alternating
• Props
  • Mode
  • Timeline item Model
  • ⌨Keyboard Navigation
  • Scrollable
  • 📺Media
  • Text overlay mode
  • 🛠Rendering custom content
  • 🎭Custom icons for the Timeline
  • 🌿Nested Timelines
  • Slideshow
  • Item Width
  • 🎥Media Settings
  • Breakpoint
  • 🎨Theme
  • Customize Font sizes
  • Customize alt text for buttons
• Using custom class names
• 📦CodeSandbox Examples
• Kitchen Sink
• 📚Storybook
• 🔨Build Setup
• 🧪Tests
• 🤝Contributing
• 🧱Built with
• Meta
• Contributors ✨

⚡ Installation

// install with yarn
yarn add react-chrono

// or with npm
npm install react-chrono

Getting Started

Please make sure you wrap the component in a container that has a width and height.

When no mode is specified, the component defaults to HORIZONTAL mode. Please check props for all the available options.

  import React from "react"
  import { Chrono } from "react-chrono";

  const Home = () => {
    const items = [{
      title: "May 1940",
      cardTitle: "Dunkirk",
      url: "http://www.history.com",
      cardSubtitle:"Men of the British Expeditionary Force (BEF) wade out to..",
      cardDetailedText: "Men of the British Expeditionary Force (BEF) wade out to..",
      media: {
        type: "IMAGE",
        source: {
          url: "http://someurl/image.jpg"
        }
      }
    }, ...];

    return (
      <div style={{ width: "500px", height: "400px" }}>
        <Chrono items={items} />
      </div>
    )
  }

🚥Vertical Mode

To render the timeline vertically use the VERTICAL mode

<div style={{ width: '500px', height: '950px' }}>
  <Chrono items={items} mode="VERTICAL" />
</div>

🚥Vertical Alternating

In VERTICAL_ALTERNATING mode the timeline is rendered vertically with cards alternating between left and right side.

<div style={{ width: '500px', height: '950px' }}>
  <Chrono items={items} mode="VERTICAL_ALTERNATING" />
</div>

Props

Below are the available configuration options for the component:

Name	Default	Description
activeItemIndex	0	Selects the active timeline item when loading.
allowDynamicUpdate	false	Enables or disables dynamic updates of timeline items.
borderLessCards	false	Removes borders and shadows from the timeline cards.
buttonTexts		Customizes the alternative text for all buttons.
cardHeight	200	Defines the minimum height of timeline cards.
cardLess	false	Disables timeline cards in both horizontal and vertical layouts.
cardPositionHorizontal		Positions the card in horizontal mode. Options: TOP or BOTTOM.
cardWidth		Sets the maximum width of timeline cards.
classNames		Applies custom class names to different card elements.
contentDetailsHeight	150	Controls the height of the details section if using cardDetailedText. Refer to TimelineItem model for more info.
disableAutoScrollOnClick	false	Prevents auto-scrolling when a timeline card is clicked.
disableClickOnCircle	false	Disables the click action on circular points.
disableInteraction	false	Disables all the interactions with the Timeline.
disableNavOnKey	false	Turns off keyboard navigation.
disableTimelinePoint	false	Disables the timeline point in both HORIZONTAL and VERTICAL mode.
enableBreakPoint	true	Automatically switches to vertical mode when the vertical breakpoint is reached.
enableDarkToggle	false	Adds a toggle switch for dark mode.
enableLayoutSwitch	true	Switches the timeline layout
enableQuickJump	true	Allows to quickly jump to a timeline item
flipLayout	false	Reverses the layout (Right to Left).
focusActiveItemOnLoad	false	Automatically scrolls to and focuses on the activeItemIndex when loading.
fontSizes		Allows customization of font sizes.
highlightCardsOnHover	false	Highlights the card on hover
items	[]	A collection of Timeline Item Models.
itemWidth	300	Sets the width of the timeline section in horizontal mode.
lineWidth	3px	Adjusts the width of the timeline track line.
mediaHeight	200	Sets the minimum height for media elements like images or videos in the card.
mediaSettings		Configures settings specific to media layout. Refer to mediaSettings for more info.
mode	VERTICAL_ALTERNATING	Sets the component mode. Options: HORIZONTAL, VERTICAL, VERTICAL_ALTERNATING.
nestedCardHeight	150	Defines the height of nested timeline cards.
noUniqueId	false	Prevents generating a unique id for the table wrapper.
onItemSelected		Invokes a callback on item selection, passing relevant data.
onScrollEnd		Detects the end of the timeline via onScrollEnd.
onThemeChange		Invokes a callback when the theme changes, triggered via enableDarkToggle.
parseDetailsAsHTML	false	Parses the cardDetailedText as HTML.
responsiveBreakPoint	1024	Break point at which the timeline changes to VERTICAL mode when VERTICAL_ALTERNATING is the default mode
scrollable	true	Makes the timeline scrollable in VERTICAL and VERTICAL_ALTERNATING modes.
showAllCardsHorizontal	false	Displays all cards in horizontal mode. By default, only the active card is shown.
slideItemDuration	5000	Sets the duration (in milliseconds) that a timeline card is active during a slideshow.
slideShow	false	Enables slideshow control.
textDensity	HIGH	Configures the amount of text to be displayed in each timeline card. Can be either HIGH or LOW
textOverlay	false	Displays text as an overlay on media elements. Refer to Text Overlay for more info.
theme		Customizes colors. Refer to Theme for more info.
timelinePointDimension		Defines the dimensions of circular points on the timeline.
timelinePointShape	circle	Configures the shape of timeline points. Options: circle, square, diamond.
titleDateFormat	'MMM DD, YYYY'	Formats the date for each timeline item. Supports all dayjs formats.
toolbarPosition	TOP	Configures the position of the toolbar. Can be TOP or BOTTOM
uniqueId		Used with noUniqueId to set a custom unique id for the wrapper.
useReadMore	true	Enables or disables the "read more" button. Available if text content on the card is taller than the card itself.
disableToolbar	false	Hides the toolbar / control panel

Mode

react-chrono supports three modes HORIZONTAL, VERTICAL and VERTICAL_ALTERNATING. No additional setting is required.

<Chrono items={items} mode="HORIZONTAL" />

<Chrono items={items} mode="VERTICAL" />

<Chrono items={items} mode="VERTICAL_ALTERNATING" />

Timeline item Model

name	description	type
cardDetailedText	detailed text displayed in the timeline card	String or String[]
cardSubtitle	text displayed in the timeline card	String
cardTitle	title that is displayed on the timeline card	String
date	date to be used in the title. when used, this will override the title property	Date
media	media object to set image or video	Object
timelineContent	render custom content instead of text.This prop has higher precedence over cardDetailedText	ReactNode
title	title of the timeline item	String
url	url to be used in the title	String

{
  title: "May 1940",
  cardTitle: "Dunkirk",
  cardSubtitle:
    "Men of the British Expeditionary Force (BEF) wade out to a destroyer during the evacuation from Dunkirk.",
  cardDetailedText: ["paragraph1", "paragraph2"],
  timelineContent: <div>Custom content</div>,
}

if you have a large text to display(via cardDetailedText) and want to split the text into paragraphs, you can pass an array of strings.

each array entry will be created as a paragraph inside the timeline card.

⌨Keyboard Navigation

The timeline can be navigated via keyboard.

• For HORIZONTAL mode use your <kbd>LEFT</kbd> <kbd>RIGHT</kbd> arrow keys for navigation.
• For VERTICAL or VERTICAL_ALTERNATING mode, the timeline can be navigated via the <kbd>UP</kbd> <kbd>DOWN</kbd> arrow keys.
• To easily jump to the first item or the last item in the timeline, use <kbd>HOME</kbd> or <kbd>END</kbd> keys.

To disable keyboard navigation set disableNavOnKey to true.

<Chrono items={items} disableNavOnKey />

Scrollable

With the scrollable prop, you can enable scrolling on both VERTICAL and VERTICAL_ALTERNATING modes.

<Chrono items={items} scrollable />

The scrollbar is not shown by default. To enable the scrollbar, pass an object with prop scrollbar to scrollable prop.

<Chrono items={items} scrollable={{ scrollbar: true }} />

📺Media

Both images and videos can be embedded in the timeline.

Just add the media attribute to the Timeline Item model and the component will take care of the rest.

<h5> To embed a image </h5>

{
  title: "May 1940",
  cardTitle: "Dunkirk",
  media: {
    name: "dunkirk beach",
    source: {
      url: "http://someurl/image.jpg"
    },
    type: "IMAGE"
  }
}

<h5> To embed a video </h5>

Videos start playing automatically when active and will be automatically paused when not active.

Like images, videos are also automatically hidden when not in the visible viewport of the container.

{
  title: "7 December 1941",
  cardTitle: "Pearl Harbor",
  media: {
    source: {
      url: "/pearl-harbor.mp4",
      type: "mp4"
    },
    type: "VIDEO",
    name: "Pearl Harbor"
  }
}

To embed YouTube videos, use the right embed url.

{
  title: "7 December 1941",
  cardTitle: "Pearl Harbor",
  media: {
    source: {
      url: