react-chrono
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2.6.1 • Public • Published


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Features

Table of Contents

⚡ 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>
    )
  }

horizontal-all

🚥Vertical Mode

To render the timeline vertically use the VERTICAL mode

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

vertical-basic

🚥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>

vertical_alternating

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 Disables and hides the toolbar

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

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

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: "https://www.youtube.com/embed/f6cz9gtMTeI",
      type: "mp4"
    },
    type: "VIDEO",
    name: "Pearl Harbor"
  }
}

media

Text overlay mode

The textOverlay prop allows you to overlay text on top of a media element in a card.To enable the text overlay feature, simply add the text property to the items array in your Chrono timeline data. Here's an example:

import { Chrono } from 'react-chrono';

const items = [
  {
    title: 'First item',
    media: {
      type: 'IMAGE',
      source: {
        url: 'https://example.com/image.jpg',
      },
    },
    text: 'This is the caption for the first item.',
  },
];

function MyTimeline() {
  return <Chrono items={items} textOverlay />;
}

The user can click on the expand button to expand the text and see more details. Here's what it looks like:

timeline_card_text_overlay

With the textOverlay prop, you can give your timeline a modern and sleek look, and provide additional context or information about each item.

🛠Rendering custom content

The Timeline cards of the component can also support embedded custom content. To insert custom content, pass the blocked elements between the Chrono tags. For instance, the below code snippet will generate two timeline items, where each div element will be automatically converted into a timeline item and inserted into the timeline card. The items collection mentioned in the code is completely optional, and custom rendering is supported on all three modes.

<Chrono mode="VERTICAL">
  <div>
    <p>Lorem Ipsum. Lorem Ipsum. Lorem Ipsum</p>
  </div>
  <div>
    <img src="<url to  a nice image" />
  </div>
</Chrono>

Note that the items collection will also work well with any custom content that is passed. In the following code snippet, the title and cardTitle are set for the custom contents.

const items = [
  { title: 'Timeline title 1', cardTitle: 'Card Title 1' },
  { title: 'Timeline title 2', cardTitle: 'Card Title 2' },
];

<Chrono mode="VERTICAL" items={items}>
  <div>
    <p>Lorem Ipsum. Lorem Ipsum. Lorem Ipsum</p>
  </div>
  <div>
    <img src="<url to  a nice image" />
  </div>
</Chrono>;

🎭Custom icons for the Timeline

To utilize personalized icons on the timeline, enclose a collection of images between the chrono tags, wrapped in a container.

The icons are arranged sequentially; meaning, the first image that you pass in will be used as the icon for the first timeline item, and so on.

It is important to note that the image collection must be passed in inside a container with the designated chrono-icons className. This is a required convention, as the component relies on this className to select the appropriate images.

<Chrono items={items} mode="VERTICAL_ALTERNATING">
  <div className="chrono-icons">
    <img src="image1.svg" alt="image1" />
    <img src="image2.svg" alt="image2" />
  </div>
</Chrono>

custom icons also works if you are rendering custom content inside the cards.

<Chrono mode="VERTICAL" items={items}>
  <div>
    <p>Lorem Ipsum. Lorem Ipsum. Lorem Ipsum</p>
  </div>
  <div>
    <img src="<url to  a nice image" />
  </div>
  <div className="chrono-icons">
    <img src="image1.svg" alt="image1" />
    <img src="image2.svg" alt="image2" />
  </div>
</Chrono>

🌿Nested Timelines

Nested timelines in React-Chrono allow you to display timelines within timeline cards. This feature is data-driven, which means that if a timeline item has an items array, the component will automatically attempt to render the nested timeline inside the timeline card.

To use nested timelines, simply provide an array of items within the items property of a timeline item. The component will then take care of rendering the nested timeline for you.

You can also adjust the height of the nested timeline card using the nestedCardHeight prop. This allows you to control the size of the card to fit your specific use case.

const items = [
  {
    title: 'Timeline title 1',
    cardTitle: 'Card Title 1',
    items: [
      { cardTitle: 'nested card title 1' },
      { cardTitle: 'nested card title 2' },
    ],
  },
  { title: 'Timeline title 2', cardTitle: 'Card Title 2' },
];

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

Slideshow

Enabling the slideshow feature can be done by setting the slideShow prop to true. Additionally, an optional slideItemDuration prop can be set to determine the time delay between cards.

Enabling this prop will cause the play button to appear in the timeline control panel. Use the slideShowType prop to set the type of slideshow animation.

Mode Default Slideshow Type
VERTICAL reveal
VERTICAL_ALTERNATING slide_from_sides
HORIZONTAL slide_in
<Chrono
  items={items}
  slideShow
  slideItemDuration={4500}
  slideShowType="reveal"
/>

The slideshow can be cancelled by clicking on the stop button in the control panel or by pressing the ESC key.

Item Width

The itemWidth prop can be used to set the width of each individual timeline sections. This setting is applicable only for the HORIZONTAL mode.

🎥Media Settings

Use media settings to align the media or change how a image is displayed in the card.

Name Description Type Default
align aligns the media. can be left, right or center string center
fit fits the image. can be cover or contain string cover
<Chrono items={items} mediaSettings={{ align: 'right', fit: 'contain' }} />

Breakpoint

Use the breakpoint feature to automatically switch the timeline to VERTICAL mode when there is not enough space for VERTICAL_ALTERNATING mode, such as on mobile devices. Set the auto switch to happen by enabling the enableBreakPoint prop and specifying the pixel limit with the verticalBreakPoint prop.

<Chrono items={items} enableBreakPoint verticalBreakPoint={400} />

🎨Theme

Customize colors with the theme prop.

Checkout the documentation for the complete list of available theme properties.

<Chrono
  items={items}
  theme={{
    primary: 'red',
    secondary: 'blue',
    cardBgColor: 'yellow',
    titleColor: 'black',
    titleColorActive: 'red',
  }}
/>

Customize Font sizes

Use the fontSizes prop to customize the font sizes of the timeline card.

<Chrono
  items={data}
  mode="HORIZONTAL"
  fontSizes={{
    cardSubtitle: '0.85rem',
    cardText: '0.8rem',
    cardTitle: '1rem',
    title: '1rem',
  }}
></Chrono>

Customize alt text for buttons

With the buttonTexts prop, you can change the button's alt text.

<Chrono
  items={data}
  mode="HORIZONTAL"
  buttonTexts={{
    first: 'Jump to First',
    last: 'Jump to Last',
    next: 'Next',
    previous: 'Previous',
  }}
></Chrono>

Defaults

Property Value
first 'Go to First'
last 'Go to Last'
next 'Next'
play 'Play Slideshow'
previous 'Previous'

Using custom class names

You can use the classNames prop to employ your own class names. The subsequent example illustrates how you can use custom class names on different elements.

<Chrono
  className="my-timeline"
  items={items}
  classNames={{
    card: 'my-card',
    cardMedia: 'my-card-media',
    cardSubTitle: 'my-card-subtitle',
    cardText: 'my-card-text',
    cardTitle: 'my-card-title',
    controls: 'my-controls',
    title: 'my-title',
  }}
/>

📦CodeSandbox Examples

Kitchen Sink

📚Storybook

Deep dive into wide variety of examples hosted as a Storybook.

🔨Build Setup

# install dependencies
pnpm install

# start dev
pnpm dev

# run css linting
pnpm lint:css

# eslint
pnpm eslint

# prettier
pnpm lint

# package lib
pnpm rollup

🧪Tests

  # run unit tests
  pnpm test

  # run cypress tests
  pnpm cypress:test

  # run cypress tests in headless mode
  pnpm cypress:headless

  # run cypress tests in quiet mode
  pnpm cypress:quiet

🤝Contributing

  1. Fork it
  2. Create your feature branch (git checkout -b new-feature)
  3. Commit your changes (git commit -am 'Add feature')
  4. Push to the branch (git push origin new-feature)
  5. Create a new Pull Request

🧱Built with

Meta

Huge thanks to BrowserStack for the Open Source License!

Distributed under the MIT license. See LICENSE for more information.

Prabhu Murthy – @prabhumurthy2prabhu.m.murthy@gmail.com https://github.com/prabhuignoto

Buy Me A Coffee

sonar

Contributors ✨

Thanks goes to these wonderful people (emoji key):

Alois
Alois

📖
Koji
Koji

📖
Alexandre Girard
Alexandre Girard

💻
Ryuya
Ryuya

📖
Taqi Abbas
Taqi Abbas

💻
megasoft78
megasoft78

💻
Eric(书生)
Eric(书生)

💻
Christophe Bernard
Christophe Bernard

💻

This project follows the all-contributors specification. Contributions of any kind welcome!

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npm i react-chrono

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2.6.1

License

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