Accessibility in React ContextMenu component

05 May 2021 / 2 minutes to read

ARIA attributes

The web accessibility makes web content and web applications more accessible for people with disabilities. It especially helps in dynamic content change and development of advanced user interface controls with AJAX, HTML, JavaScript, and related technologies. ContextMenu provides built-in compliance with WAI-ARIA specifications. WAI-ARIA support is achieved through the attributes like aria-expanded, aria-haspopup applied for menu item in ContextMenu. It helps the people with disabilities by providing information about the widget for assistive technology in the screen readers. ContextMenu component contains the menu role and menuItem role.

Properties	Functionality
menu	This role will be specified for an item which have sub menu.
menuItem	This role will be specified for an item which do not have sub menus.
aria-haspopup	Indicates the availability and type of interactive popup element.
aria-expanded	Indicates whether the subtree can be expanded or collapsed, as well as whether its current state is expanded or collapsed.

Keyboard interaction

Keyboard shortcuts	Actions
`Esc`	Closes the opened ContextMenu.
`Enter`	Selects the focused item.
`Up`	Navigates up or to the previous menu item.
`Down`	Navigates down or to the next menu item.
`Left`	Close the current sub menu and navigates to parent menu..
`Right`	Navigates and open the next sub menu.

Source

Preview

index.tsx

index.html

index.css

index.jsx

import { enableRipple } from '@syncfusion/ej2-base';
import { ContextMenuComponent, MenuItemModel } from '@syncfusion/ej2-react-navigations';
import * as React from 'react';
import * as ReactDom from 'react-dom';

enableRipple(true);

class App extends React.Component<{}, {}> {
    public cmenu: ContextMenuComponent;
    public menuItems: MenuItemModel[] = [
      {
        iconCss: 'e-menu-icons e-cut',
        text: 'Cut'
      },
      {
        iconCss: 'e-icons e-copy',
        text: 'Copy'
      },
      {
          iconCss: 'e-menu-icons e-paste',
          items: [
              {
                iconCss: 'e-cm-icons e-pastetext',
                text: 'Paste Text',
              },
              {
                iconCss: 'e-cm-icons e-pastespecial',
                text: 'Paste Special'
              }
          ],
          text: 'Paste'
      }];
    constructor(props: any) {
        super(props);
        this.onCreated = this.onCreated.bind(this);
    }
    public onCreated(){
      this.cmenu.open(40, 20);
    }
  
  public render() {
      return (
        <div className="container">
         <div id='target'>Right click / Touch hold to open the ContextMenu</div>
          <ContextMenuComponent ref= {(scope) => this.cmenu = scope as ContextMenuComponent} id='contextmenu' items={this.menuItems} created={this.onCreated}/>
        </div>
      );
    }
  }
ReactDom.render(<App />,document.getElementById('element'));

<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React ContextMenu</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for React Components" />
    <meta name="author" content="Syncfusion" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='element'>
        <div id='loader'>Loading....</div>
    </div>
</body>

</html>

/* csslint ignore:start */
@font-face {
	font-family: 'e-context-menu';
	src:
	url(data:application/x-font-ttf;charset=utf-8;base64,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) format('truetype');
	font-weight: normal;
	font-style: normal;
}
/* csslint ignore:stop */

.e-cm-icons {
	font-family: 'e-context-menu';
	font-style: normal;
	font-variant: normal;
	font-weight: normal;
	line-height: 1;
	text-transform: none;
}

#loader {
	color: #008cff;
	height: 40px;
	left: 45%;
	position: absolute;
	top: 45%;
	width: 30%;
}

@font-face {
font-family: 'ddb-icons';
src:
url(data:application/x-font-ttf;charset=utf-8;base64,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) format('truetype');
font-weight: normal;
font-style: normal;
}

.e-menu-icons {
 font-family: 'ddb-icons' !important;
speak: none;
font-size: 55px;
font-style: normal;
font-weight: normal;
font-variant: normal;
text-transform: none;
line-height: 1;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}

.e-cut::before {
  content: '\e700';
}

.e-copy::before {
  content: '\e70a';
}

.e-paste::before {
  content: '\e701';
}

.e-pastespecial::before {
	content: '\e260';
}

.e-pastetext::before {
	content: '\e261';
}
#target {
	border: 1px dashed;
	height: 150px;
	padding: 10px;
	position: relative;
	text-align: justify;
	color: gray;
	user-select: none;
}

import { enableRipple } from '@syncfusion/ej2-base';
import { ContextMenuComponent } from '@syncfusion/ej2-react-navigations';
import * as React from 'react';
import * as ReactDom from 'react-dom';
enableRipple(true);
class App extends React.Component {
    constructor(props) {
        super(props);
        this.menuItems = [
            {
                iconCss: 'e-menu-icons e-cut',
                text: 'Cut'
            },
            {
                iconCss: 'e-icons e-copy',
                text: 'Copy'
            },
            {
                iconCss: 'e-menu-icons e-paste',
                items: [
                    {
                        iconCss: 'e-cm-icons e-pastetext',
                        text: 'Paste Text',
                    },
                    {
                        iconCss: 'e-cm-icons e-pastespecial',
                        text: 'Paste Special'
                    }
                ],
                text: 'Paste'
            }
        ];
        this.onCreated = this.onCreated.bind(this);
    }
    onCreated() {
        this.cmenu.open(40, 20);
    }
    render() {
        return (<div className="container">
         <div id='target'>Right click / Touch hold to open the ContextMenu</div>
          <ContextMenuComponent ref={(scope) => this.cmenu = scope} id='contextmenu' items={this.menuItems} created={this.onCreated}/>
        </div>);
    }
}
ReactDom.render(<App />, document.getElementById('element'));

Contents

ARIA attributes
Keyboard interaction

Contents

ARIA attributes
Keyboard interaction

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