React-contexify

A declarative context menu for React 😲 !

• Demo
• Installation
• Usage
  • The gist
  • Wrap component with the html tag of your choice
  • Disable an Item
  • Disable a submenu
  • Change the Submenu arrow
  • The onClick callback
    • event
    • ref
    • data
    • dataFromProvider
    • Why use destructuring assignment?
• Api
  • ContextMenuProvider
  • ContextMenu
  • Submenu
  • Item
  • Separator
  • IconFont
• To-Do
• Migration from v2 to v3
• Browser Support
• Release Notes
• Contribute
• License

⚠️ The v3 introduces a lot of breaking changes. Please consider reading the migration guide.

Demo

Live demo here

Installation

$ yarn add react-contexify
or
$ npm install --save react-contexify

Usage

The gist

import { ContextMenu, Item, Separator, Submenu, ContextMenuProvider } from 'react-contexify';
import 'react-contexify/dist/ReactContexify.min.css';

const onClick = ({ event, ref, data, dataFromProvider }) => console.log('Hello');
// create your menu first
const MyAwesomeMenu = () => (
    <ContextMenu id='menu_id'>
       <Item onClick={onClick}>Lorem</Item>
       <Item onClick={onClick}>Ipsum</Item>
       <Separator />
       <Item disabled>Dolor</Item>
       <Separator />
       <Submenu label="Foobar">
        <Item onClick={onClick}>Foo</Item>
        <Item onClick={onClick}>Bar</Item>
       </Submenu>
    </ContextMenu>
);

const App = () => (
    <div>
        <h1>Welcome to My App</h1>
        <ContextMenuProvider id="menu_id">
            <div>Some Content ... </div>
        </ContextMenuProvider>
        <MyAwesomeMenu />
    </div>
);

Wrap component with the html tag of your choice

The ContextMenuProvider expose a renderTag prop to let you do that.

const Tr = (props) => (
  <ContextMenuProvider id="menu_id" renderTag="tr">
    <td>{props.cel1}</td>
    <td>{props.cel2}</td>
  </ContextMenuProvider>
);

Disable an Item

You can disable an Item with a boolean or a callback. When a callback is used, a boolean must be returned. The callback has access to the same parameter as the onClick callback.

const isDisabled = ({ event, ref, data, dataFromProvider }) => {
    return true;
}

<ContextMenu id='menu_id'>
    <Item disabled>Foo</Item>
    <Item disabled={isDisabled}>Bar</Item>
</ContextMenu>

Disable a submenu

Disable a Submenu is simple as disabling an Item. The disabled callback is slightly different, there is no data param.

<ContextMenu id='menu_id'>
    <Item>Foo</Item>
    <Submenu label="Submenu" disabled>
        <Item>Bar</Item>
    </Submenu>
</ContextMenu>

Change the Submenu arrow

<ContextMenu id='menu_id'>
    <Item>Foo</Item>
    <Submenu label="Submenu" arrow="🦄">
        <Item>Bar</Item>
    </Submenu>
    <Separator />
    <Submenu label="Submenu" arrow={<i className="rocket">🚀</i>}>
        <Item>Bar</Item>
    </Submenu>
</ContextMenu>

The onClick callback

The onClick callback of the Item component gives you access to an object with 4 properties:

event

The event property refers to the native event which triggered the menu. It can be used to access the mouse coordinate or any other event prop.

const onClick = ({ event, ref, data, dataFromProvider }) => {
    // Accessing the mouse coordinate
    console.log(event.clientX, event.clientY);
}

ref

If you wrap a single react component ref will be the mounted instance of the wrapped component.

If you wrap more than one component ref will be an array containing a ref of every component.

ref will be an instance of the react component only if the component is declared as a class

For more details about ref please read this

• With a single component

const Wrapped = () => (
    <ContextMenuProvider id="id">
        <Avatar id="foobar" />
    </ContextMenuProdider>
);

const onClick = ({ event, ref, data, dataFromProvider }) => {
   // Retrieve the Avatar id
   console.log(ref.props.id); 
}

• With more than one component

const Wrapped = () => (
    <ContextMenuProvider id="id">
        <Avatar id="foobar" />
        <Avatar id="plop" />
    </ContextMenuProdider>
);

const onClick = ({ event, ref, data, dataFromProvider }) => {
   // Print foobar
   console.log(ref[0].props.id); 

   // Print plop
   console.log(ref[1].props.id); 
}

• With an html node, the ref contains the html node 🤣

const Wrapped = () => (
    <ContextMenuProvider id="id">
        <div id="foobar" data-xxx="plop">bar</div>
    </ContextMenuProdider>
);

const onClick = ({ event, ref, data, dataFromProvider }) => {
   // Retrieve the div id
   console.log(ref.id); 

   // Access the data attribue
   console.log(ref.dataset.xxx); 
}

With more than one html node wrapped you get an array as well.

data

const onClick = ({ event, ref, data, dataFromProvider }) => {
   // Print Ada
   console.log(data.name); 
}

const YourMenu = () => (
    <ContextMenu>
        <Item data={name: 'Ada'} onClick={onClick}>Hello</Item>
    </ContextMenu>
);

dataFromProvider

The data prop passed to the ContextMenuProvider is accessible for every Item as dataFromProvider.

const Wrapped = () => (
    <ContextMenuProvider id="id" data={name: 'Ada'}>
        <div id="foobar" data-xxx="plop">bar</div>
    </ContextMenuProdider>
);

const onClick = ({ event, ref, data, dataFromProvider }) => {
   // Print Ada Again 
   console.log(dataFromProvider.name); 
}

Why use destructuring assignment?

• As a developer, pick only what you want: ({ ref }) => {}
• As a maintainer, easier to extend the library: ({ event, ref, data, dataFromProvider, theFithParameter }) => {}
• 'destructuring'.substring(-1, 8) 💥

Api

ContextMenuProvider

Props	Default	Required	Description
id: string | number	-	✓	Id used to map your component to a context menu
renderTag: string	'div'	✘	The tag used to wrap the child component
event: string	'onContextMenu'	✘	Same as React Event (onClick, onContextMenu ...). Event used to trigger the context menu
data: any	-	✘	Data are passed to the Item onClick callback.
storeRef: boolean	true	✘	Store ref of the wrapped component.
className: string	-	✘	Additional className
style: object	-	✘	Additional style

<ContextMenuProvider id="menu_id" data={foo: 'bar'}>
    <MyComponent />
</ContextMenuProvider>

ContextMenu

Props	Required	Possible Value	Description
id: string | number	✓	-	Used to identify the corresponding menu
style: object	✘	-	An optional style to apply
classname: string	✘	-	An optional css class to apply
theme: string	✘	light | dark	Theme is appended to react-contexify__theme--${given theme}
animation: string	✘	fade | flip | pop | zoom	Animation is appended to .react-contexify__will-enter--${given animation}

// You can set built-in theme and animation using the provided helpers as follow
import { ContextMenu, Item, theme, animation } from 'react-contexify';

<ContextMenu id="foo" theme={theme.dark} animation={animation.pop}>
    <Item>Foo</Item>
    <Item disabled>Bar</Item>
    {/* and so on  */}
</ContextMenu>    

Submenu

Props	Default	Required	Description
label: node	-	✓	Submenu label. It can be a string or any node element like <div>hello</div>
disabled: bool | ({ event, ref, dataFromProvider }) => bool	false	✘	Disable the item. If a function, it must return a boolean.
arrow: node	-	✘	Define a custom arrow

Item

Props	Default	Required	Description
disabled: bool | ({ event, ref, data, dataFromProvider }) => bool	false	✘	Disable the item. If a function, it must return a boolean.
onClick: ({ event, ref, data, dataFromProvider }) => void	-	✘	Callback when the item is clicked
data: any	-	✘	Additional data that will be passed to the callback

Separator

Don't expect any props. It's just a separator xD.

<Separator />

IconFont

Props	Required	Description
className: string	✘	Additional className
style: object	✘	Additional style

The icon font renders a i tag. It's just a helper

//example with Font Awesome 
<Item>
    <IconFont className="fa fa-trash" />Delete
</Item>
//example with material icons
<Item>
    <IconFont className="material-icons">remove_circle</IconFont>Delete
<Item>

To-Do

• Allow keyboard navigation
• Switch or not to styled component?
• Accessibility
• RTL support

Migration from v2 to v3

A huge part of the code has been reviewed. The api has been simplified.

• There is no more leftIcon and rightIcon on the Item component. Do <Item><IconFont className="fa fa-delete" /> delete</Item> instead
• The menuProvider HOC has been removed. You can create yours easely
• The onClick callback use destructuring assignment over explicit parameter

Browser Support

IE 11+ ✔	Latest ✔	Latest ✔	Latest ✔	Latest ✔	Latest ✔

Release Notes

v3

• Support submenu
• Add typescript definition
• Reviewed the api
• Upgrade to react 16

2.1.4

• Fix child references. Thanks to @kinke

2.1.3

• Fixed issue 33
• Removed Proxy Container.

2.1.2

• Fixed for real ! issue 27

2.1.0

• Context menu is now rendered outside of the main react root component to avoid the fixed position being broken by the parent style. For more details please see issue 27

2.0.7

• Simplified implementation Pull Request #22

2.0.6

• Typo fix in documentation
• Pass props down to menuProvider function

2.0.5

• Will now hide menu on mousedown.Relate to issue 19
• Added flag noIdents to cssnano to avoid animation name collision with other libs

Bug Fix

• Fixed zoom animation

2.0.4

• Minor code cleanup

2.0.3

Bug Fix

• Firefox trigger a click event also on context menu which was making the menu disappear. Relate to issue 16

2.0.2

Bug Fixes

• Fix issue #14

2.0.1

Bug Fixes

• conditional rendering was badly tested, shame on me !

2.0.0

• This version introduce breaking changes for the item component
• Upgrade to prop-types
• Tested with jest and enzyme
• Reviewed build system

Features

• The onClick callback provide a ref to the wrapped component
• Can now use condtionnal rendering for dynamic menu. Relate to issue 12
• Added IconFont component

Bug Fixes

• Fixed right click behavior. Relate to issue 11

1.1.0

Features

• Added possibility to set the render tag for the wrapper
• Added a ContextMenuProvider component
• Added possibility to set className and style to ContextMenuProvider
• Removed ContextMenuProvider style.Was too unpredictable

Bug Fixes

• fixed incorrect PropTypes used
• dead code elimination

Contribute

Any idea and suggestions are welcome.

License

React Contexify is licensed under MIT.