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Version: v11.7.5

Accessibility Support in WaveMaker


Accessibility is essential for individuals and organizations that want to create high-quality websites and applications. It enables people with disabilities to use different Assistive Technologies (AT) and Adaptive Strategies for the business benefits of Web Accessibility. WaveMaker also focuses on enabling their product with international standards for Web Accessibility from World Wide Web Consortium (W3C), including Web Content Accessibility Guidelines (WCAG) and Web Accessibility Initiative - Accessible Rich Internet Applications (WAI-ARIA) as the first step in applying them.

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For more information, see the blog post about Accessibility in WaveMaker.

How it Works

To make components accessible, all the text on the web page must be unique, along with its captions and roles. To make it possible, we have introduced aria-labels attributes for all the wm-widgets which are configurable and certain Role to identify every component as per their standard behavior. This ARIA "roles" and "attributes" will benefit the group of people using Assistive Technology Readers (ATR) to read the text and the purpose of the widget aloud to the users.

WaveMaker Accessibility enhancements will cover Web Content Accessibility Guidelines (WCAG) "A" and "AA" compliance for all non-text content, including the following.

Name Role & Value, Info & Relationships, Meaning Sequence, Sensory Characteristics, Identify Input Purpose, Non-Text Contrast, Page Titled, Headings and Labels, Label in Name, Language of Page, Status Messages, Error Prevention.

Steps to Follow

Labels

  • On every drag and drop of a widget, check for the Accessibility section.
  • Copy or Bind the captions of the label widgets to the Hint property from the properties tab below the Accessibility section.

Accessibility Section

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All labels and texts will have a default hint value specified as "Label text", which you can edit.

  • Manipulating the Hint will result in a "tooltip text" on-hover and "aria-label" attribute visible in the browser preview URL that only AT screen readers can understand.
  • The "aria-label" attribute will be added to all widgets wherever text is bound from the Hint property.

Images

  • Add proper description for the images used on a page under the Hint parameter.
  • Modifying hint property with meaningful caption will add aria-label to make it accessible.

Other widgets are taken care of to make them accessible easier and faster with "aria-labels" like, Page layouts, Dialogs, Form Fields, Anchors, and Live Forms, etc.


Predefined ARIA Attributes

ComponentsAria LabelsRole
App logoaria-label="Image"
Headeraria-label="Page header"banner
Pagearia-label="Main page content"
Mobile Navbararia-label="Title"link
Mobile Tabbararia-label="Home"link
Headingaria-label="Label text"heading
aria-level="1"
Login Inputaria-label="Text field"
Login buttonaria-label="Login"
Validation Errorsaria-label="error message"alert
aria-hidden="true"
aria-live="polite"
Anchorsaria-label="Link"
Buttonaria-label="Button"
Checkboxaria-label="Checkbox"checkbox
aria-checked="false"
Toggle switcharia-label="Toggle"
aria-checked="false"
Ratingaria-label="1 out of 5 ratings"radio
aria-checked="true"
aria-multiselectable="true"
Currencyaria-label="country currency"
Datetimearia-label="Date and time field"
Time inputaria-label="Time field"timer
aria-atomic="true"
Paginationaria-label="Page 1"
Calendar Viewaria-label="Month view"
Search inputaria-label="search field"
Slideraria-label="slider"slider
aria-orientation="Vertical/horizontal"
Selectboxaria-label="Select options"listbox
aria-expanded="false"
aria-hashpop="true"
Selectbox optionsoption
Accordion tabsaria-expanded="true/false"tab
Listlist, listitem
Datatabletable
Panelaria-label="panel"
aria-label="panel-header"
aria-label="panel-content"
aria-label="panel-footer"
Chartsaria-label="pie chart"
Left panelaria-label="Left navigation"navigation
Right panelaria-label="Right navigation"complementary
Top navaria-label="Second level navigation"navigation
Footeraria-label="Page footer"contentinfo
Partialscomplementary
Spinneraria-label="Loading..."alert
aria-live="assertive
aria-busy="true"
Picturearia-label="Placeholder Image"
Iconaria-label="user icon"
Popoveraria-label="user icon"menubar
Dialogaria-modal="true"dialog
Audioapplication

Appropriate Use of Headings

To make good use of headings on a page, add CSS class name from the Style properties tab, for example .h1, .h2, .h3, etc. Using any of the above headings class name, an attribute "aria-level" will be assigned to the HTML structure to make the screen readers understand the text specificity while scanning a page. You can copy the heading caption to the hint property to make it ARIA accessible.

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Classname with .h1 will set the aria-level="1", and .h2 will set aria-level="2" attribute following the rest.

Keyboard Navigation

To navigate well within a form, use the Tab Index property from the Properties tab.

Tab Index property

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For form inputs in a live form, the hint text will not only add an aria-label attribute but also a Help Text below the input field.

Good Practices

Effective use of color contrast is also an important aspect of making your app accessible.

  • WCAG 2.0 level "AA" requires a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text.
  • WCAG 2.1 requires a contrast ratio of at least 3:1 for graphics and user interface components (such as form input borders).
  • WCAG Level "AAA" requires a contrast ratio of at least 7:1 for normal text and 4.5:1 for large text. [

For more information about the color contrast ratio before designing or developing any application, see Contrast Checker.