@lourenci/react-kanban

Yet another Kanban/Trello board lib for React.

▶️ Demo

Usage

❓ Why?

• 👊 Reliable: 100% tested on CI; 100% coverage; 100% SemVer.
• 🎮 Having fun: Play with Hooks 🎣 and Styled Components.
• ♿️ Accessible: Keyboard and mobile friendly.
• 🔌 Pluggable: For use in projects.

🛠 Install and usage

Since this project use Hooks, you have to install them:

• react>=16.8.5

After, Install the lib on your project:

yarn add @lourenci/react-kanban

Import the lib and use it on your project:

import Board from '@lourenci/react-kanban'
import '@lourenci/react-kanban/dist/styles.css'

const board = {
  columns: [
    {
      id: 1,
      title: 'Backlog',
      cards: [
        {
          id: 1,
          title: 'Add card',
          description: 'Add capability to add a card in a column'
        },
      ]
    },
    {
      id: 2,
      title: 'Doing',
      cards: [
        {
          id: 2,
          title: 'Drag-n-drop support',
          description: 'Move a card between the columns'
        },
      ]
    }
  ]
}

<Board initialBoard={board} />

🔥 API

🕹 Controlled and Uncontrolled

When you need a better control over the board, you should stick with the controlled board. A controlled board means you need to deal with the board state yourself, you need to keep the state in your hands (component) and pass this state to the <Board />, we just reflect this state. This also means a little more of complexity, although we make available some helpers to deal with the board shape. You can read more in the React docs, here and here.

If you go with the controlled one, you need to pass your board through the children prop, otherwise you need to pass it through the initialBoard prop.

Helpers to work with the controlled board

We expose some APIs that you can import to help you to work with the controlled state. Those are the same APIs we use internally to manage the uncontrolled board. We really recommend you to use them, they are 100% unit tested and they don't do any side effect to your board state.

To use them, you just need to import them together with your board:

import Board, { addCard, addColumn, ... } from '@lourenci/react-kanban'

All the helpers you need to pass your board and they will return a new board to pass to your state:

import Board, { addColumn } from '@lourenci/react-kanban'
...
const [board, setBoard] = useState(initialBoard)
...
const newBoard = addColumn(board, newColumn)
setBoard(newBoard)
...
<Board>{board}</Board>

You can see the list of helpers in the end of the props documentation.

🔷 Shape of a board

{
  columns: [{
    id: ${unique-required-columnId},
    title: {$required-columnTitle**},
    cards: [{
      id: ${unique-required-cardId},
      title: ${required-cardTitle*}
      description: ${required-description*}
    }]
  }]
}

* The title and the description are required if you are using the card's default template. You can render your own card template through the renderCard prop.

** The title is required if you are using the column's default template. You can render your own column template through the renderColumnHeader prop.

⚙️ Props

Prop	Description	Controlled	Uncontrolled
children (required if controlled)	The board to render	✅	🚫
initialBoard (required if uncontrolled)	The board to render	🚫	✅
onCardDragEnd	Callback that will be called when the card move ends	✅	✅
onColumnDragEnd	Callback that will be called when the column move ends	✅	✅
renderCard	A card to be rendered instead of the default card	✅	✅
renderColumnHeader	A column header to be rendered instead of the default column header	✅	✅
allowAddColumn	Allow a new column be added by the user	✅	✅
onNewColumnConfirm (required if use the default column adder template)	Callback that will be called when a new column is confirmed by the user through the default column adder template	✅	✅
onColumnNew (required if allowAddColumn or when addColumn is called)	Callback that will be called when a new column is added through the default column adder template	🚫	✅
renderColumnAdder	A column adder to be rendered instead of the default column adder template	✅	✅
disableColumnDrag	Disable the column move	✅	✅
disableCardDrag	Disable the card move	✅	✅
allowRemoveColumn	Allow to remove a column in default column header	✅	✅
onColumnRemove (required if allowRemoveColumn or when removeColumn is called)	Callback that will be called when a column is removed	✅	✅
allowRenameColumn	Allow to rename a column in default column header	✅	✅
onColumnRename (required if allowRenameColumn or when renameColumn is called)	Callback that will be called when a column is renamed	✅	✅
allowRemoveCard	Allow to remove a card in default card template	✅	✅
onCardRemove (required if allowRemoveCard)	Callback that will be called when a card is removed	✅	✅
allowAddCard	Allow to add a card. Expect an object with the position to add the card in the column.	🚫	✅
onCardNew (required if allowAddCard or when addCard is called)	Callback that will be called when a new card is added through the default card adder template	🚫	✅
onNewCardConfirm (required if allowAddCard)	Callback that will be called when a new card is confirmed by the user through the default card adder template	🚫	✅

children

The board. Use this prop if you want to control the board's state.

initialBoard

The board. Use this prop if you don't want to control the board's state.

onCardDragEnd

When the user moves a card, this callback will be called passing these parameters:

Arg	Description
board	The modified board
card	The moved card
source	An object with the card source { fromColumnId, fromPosition }
destination	An object with the card destination { toColumnId, toPosition }

Source and destination

Prop	Description
fromColumnId	Column source id.
toColumnId	Column destination id.
fromPosition	Card's index in column source's array.
toPosition	Card's index in column destination's array.

onColumnDragEnd

When the user moves a column, this callback will be called passing these parameters:

Arg	Description
board	The modified board
column	The moved column
source	An object with the column source { fromPosition }
destination	An object with the column destination { toPosition }

Source and destination

Prop	Description
fromPosition	Column index before the moving.
toPosition	Column index after the moving.

renderCard

Use this if you want to render your own card. You have to pass a function and return your card component. The function will receive these parameters:

Arg	Description
card	The card props
cardBag	A bag with some helper functions and state to work with the card

cardBag

function	Description
removeCard*	Call this function to remove the card from the column
dragging	Whether the card is being dragged or not

* It's unavailable when the board is controlled.

Ex.:

const board = {
  columns: [{
    id: ${unique-required-columnId},
    title: ${columnTitle},
    cards: [{
      id: ${unique-required-cardId},
      dueDate: ${cardDueDate},
      content: ${cardContent}
    }]
  }]
}

<Board
  renderCard={({ content }, { removeCard, dragging }) => (
    <YourCard dragging={dragging}>
      {content}
      <button type="button" onClick={removeCard}>Remove Card</button>
    </YourCard>
  )}
>
{board}
</Board>

renderColumnHeader

Use this if you want to render your own column header. You have to pass a function and return your column header component. The function will receive these parameters:

Arg	Description
column	The column props
columnBag	A bag with some helper functions to work with the column

columnBag

function	Description
removeColumn*	Call this function to remove the column from the board
renameColumn*	Call this function with a title to rename the column
addCard*	Call this function with a new card to add it in the column

addCard: As a second argument you can pass an option to define where in the column you want to add the card:

• { on: 'top' }: to add on the top of the column.
• { on: 'bottom' }: to add on the bottom of the column (default).

* It's unavailable when the board is controlled.

Ex.:

const board = {
  columns: [{
    id: ${unique-required-columnId},
    title: ${columnTitle},
    wip: ${wip},
    cards: [{
      id: ${unique-required-cardId},
      title: ${required-cardTitle},
      description: ${required-cardDescription}
    }]
  }]
}

<Board
  renderColumnHeader={({ title }, { removeColumn, renameColumn, addCard }) => (
    <YourColumnHeader>
      {title}
      <button type='button' onClick={removeColumn}>Remove Column</button>
      <button type='button' onClick={() => renameColumn('New title')}>Rename Column</button>
      <button type='button' onClick={() => addCard({ id: 99, title: 'New Card' })}>Add Card</button>
    </YourColumnHeader
  )}
>
  {board}
</Board>

allowAddColumn

Allow the user to add a new column directly by the board.

onNewColumnConfirm

When the user confirms a new column through the default column adder template, this callback will be called with a draft of a column with the title typed by the user.

If your board is uncontrolled you must return the new column with its new id in this callback.

If your board is controlled use this to get the new column title.

Ex.:

function onColumnNew (newColumn) {
  const newColumn = { id: ${required-new-unique-columnId}, ...newColumn }
  return newColumn
}

<Board initialBoard={board} allowAddColumn onColumnNew={onColumnNew} />

onColumnNew

When the user adds a new column through the default column adder template, this callback will be called passing the updated board and the new column.

This callback will not be called in an uncontrolled board.

renderColumnAdder

Use this if you want to render your own column adder. You have to pass a function and return your column adder component. The function will receive these parameters:

Arg	Description
columnBag	A bag with some helper functions

columnBag

function	Description
addColumn*	Call this function with a new column to add the new column

* It's unavailable when the board is controlled.

Ex.:

const ColumnAdder = ({ addColumn }) {
  return (
    <div onClick={()=> addColumn({id: ${required-new-unique-columnId}, title: 'Title', cards:[]})}>
      Add column
    </div>
  )
}

<Board
  allowAddColumn
  renderColumnAdder={({ addColumn }) => <ColumnAdder addColumn={addColumn} />}
  {board}
</Board>

disableColumnDrag

Disallow the user from move a column.

disableCardDrag

Disallow the user from move a card.

allowRemoveColumn

When using the default header template, when you don't pass a template through the renderColumnHeader, it will allow the user to remove a column.

onColumnRemove

When the user removes a column, this callback will be called passing these parameters:

Arg	Description
board	The board without the removed column
column	The removed column

allowRenameColumn

When using the default header template, when you don't pass a template through the renderColumnHeader, it will allow the user to rename a column.

onColumnRename

When the user renames a column, this callback will be called passing these parameters:

Arg	Description
board	The board with the renamed column
column	The renamed column

allowRemoveCard

When using the default card template, when you don't pass a template through the renderCard, it will allow the user to remove a card.

onCardRemove

When the user removes a card, this callback will be called passing these parameters:

Arg	Description
board	The board without the removed column
column	The column without the removed card
card	The removed card

🔩 Helpers to be used with an controlled board

moveColumn

Arg	Description
board	Your board
{ fromPosition }	Index of column to be moved
{ toPosition }	Index destination of column to be moved

moveCard

Arg	Description
board	Your board
{ fromPosition, fromColumnId }	Index and columnId of card to be moved
{ toPosition, toColumnId }	Index and columnId of the card destination

addColumn

Arg	Description
board	Your board
column	Column to be added

removeColumn

Arg	Description
board	Your board
column	Column to be removed

changeColumn

Arg	Description
board	Your board
column	Column to be renamed
object	Pass a object to be merged with the column. You can add new props and/or change the existing ones

addCard

Arg	Description
board	Your board
inColumn	Column to add the card be added
card	Card to be added
`{ on: 'bottom	top' }`

allowAddCard

Allow the user to add a card in the column directly by the board. By default, it adds the card on the bottom of the column, but you can specify whether you want to add at the top or at the bottom of the board by passing an object with 'on' prop.

E.g.: // at the bottom by default <Board allowAddCard={{ on: 'bottom' }} /> // in the bottom of the column <Board allowAddCard={{ on: 'top' }} /> // at the top of the column

onCardNew

When the user adds a new card through the default card adder template, this callback will be called passing the updated board and the new card.

onNewCardConfirm

When the user confirms a new card through the default card adder template, this callback will be called with a draft of a card with the title and the description typed by the user.

You must return the new card with its new id in this callback.

Ex.:

function onCardNew (newCard) {
  const newCard = { id: ${required-new-unique-cardId}, ...newCard }
  return newCard
}

<Board initialBoard={board} allowAddCard onNewCardConfirm={onCardNew} onCardNew={console.log} />

removeCard

Arg	Description
board	Your board
fromColumn	Column where the card is
card	Card to be removed

💅🏻 Styling

You can either style all the board or import our style and override it with the styles you want:

Class
react-kanban-board
react-kanban-card
react-kanban-card-skeleton
react-kanban-card--dragging
react-kanban-card__description
react-kanban-card__title
react-kanban-column
react-kanban-card-adder-form
react-kanban-card-adder-button
react-kanban-card-adder-form__title
react-kanban-card-adder-form__description
react-kanban-card-adder-form__button
react-kanban-column-header
react-kanban-column-header__button
react-kanban-column-adder-button

🧪 Tests

Unit

yarn test

Code coverage is saved in coverage folder. Open HTML report for example with

open coverage/lcov-report/index.html

End-to-end

Using Cypress test runner. Start dev server and open Cypress using

yarn dev

All tests are in the cypress/integration folder. These tests also collect code coverage and save in several formats in the coverage folder. Open HTML report

open coverage/lcov-report/index.html

Read Cypress code coverage guide

Note: to avoid inserting babel-plugin-istanbul twice during Jest tests, E2E tests run with NODE_ENV=cypress environment variable. The babel-plugin-istanbul plugin is included in .babelrc file only in the cypress Node environment, leaving the default Jest configuration during NODE_ENV=test the same.

🚴‍♀️ Roadmap

You can view the next features here. Feel welcome to help us with some PRs.

🤝 Contributing

PRs are welcome:

• Fork this project.
• Setup it:

  yarn
  yarn start
  

• Make your change.
• Add yourself to the contributors table:

  yarn contributors:add
  

• Open the PR.

✍️ Guidelines for contributing

• You need to test your change.
• Try to be clean on your change. CodeClimate will keep an eye on you.
• It has to pass on CI.