accessibility-snippets
[](#contributors-)
VScode Snippets created to help developers write accessible code.
Features
CSS snippet
| Snippet |
Description |
Note |
| reduced motion |
Adds a reduced motion snippet with prefix transition |
N/A |
| less-contrast |
Adds less contrast media snippet with prefix less-contrast |
🚨 Safari Only Queries 🚨 |
| dark-color-scheme |
Adds dark prefers-color-scheme snippet with prefix darkColorScheme |
N/A |
| light-color-scheme |
Adds light prefers-color-scheme snippet with prefix lightColorScheme |
N/A |
React Aria Snippets
| Snippet | Role | Description |
| :-------------: |:-------------: | :------------|
| AlertAria | role='alert' | Add role='alert' to a node containing an alert message. Setting role='alert' automatically sets aria-live="assertive" and aria-atomic="true". |
| AlertDialogAria | role='alertDialog' | Add role='alertDialog' when an alert is urgent and demands immediate attention. Only use alertDialog when the alert message has associated interactive controls. |
| ArticleAria | role='article' | Add role='article' to a node that can easily stand on its own separate from the main content of the page. An example is a newspaper article or a forum post. Use aria-posinset to indicate of the article within the feed. Use aria-setsize to indicate how many articles are in the feed. |
| BannerAria | role='banner' | Add role='banner' to define a banner landmark to assistive technologies. A banner landmark is informative content frequently placed at the beginning of the page. |
| ButtonAria | role='button' | Add role='button' on a clickable element that triggers a response when activated by a user. Add aria-pressed when a button can toggle 'on' or 'off'. Add aria-expanded if a button triggers another node to expand or collapse. |
| CheckboxAria | role='checkbox' | Add role='checkbox' to a checkable interactive control. Add aria-checked to indicate the state of the checkbox.|
| ComboboxAria | role='combobox' | Add role='combobox' to a composite widget containing a single-line textbox and another element such as listbox. Add aria-haspopup if the combobox contains a popup. Add aria-expanded if the combobox expands or collapses a node. Add aria-owns to indicate which elements the combobox owns.|
| DialogAria | role='dialog'| Add role='dialog' to a window separate from the rest of the webpage like a modal.|
| DocumentAria | role='document' | Add role='document' to application or other interactive widget role to switch to browse or read mode. Add aria-expanded to indicate whether the document is currently expanded or collapsed if the document element is collapsible.|
| FeedAria | role='feed' | Add role='feed' to a dynamic list of articles. Add aria-busy if articles are being loaded or have been removed from the feed.|
| FigureAria | role='figure' | Add role='figure' to identify a figure inside page content where appropriate semantics do not already exist. Add aria-labelledby when the text is a concise label. Add aria-describedby when the text is a longer description. Add aria-label if there is no element containing text that could serve as a label.|
| ImageAria | role='img' | Add role='img' to identify a set of content as a single image that has multiple elements. Elements can be images, text, emojis or other content that delivers information visually. Add aria-label for descriptive alt text for the image. aria-label can be replaced with aria-labelledby if descriptive text is provide in another element within the role.|
| LinkAria | role='link' | Add role='link' to elements that act as hyperlinks. Ensure the link can be navigated to via the keyboard. If the link role is added to an image add alt text. Add an aria-label if the link does not provide a descriptive text label.|
| ListAria | role='list' | Add role='list' to elements that act as list.|
| ListItemAria | role='list-item' | Add role='list-item' to elements that act as list-item contained inside the list.|
| MeterAria | role='meter' | Add role='meter' to identify an element being used as a meter. A meter is a graphical display of a numeric value within a defined range. Each element must have either an aria-label or aria-labelledby. Add aria-labelledby to point to an element with text that describes the meter. Add aria-valuenow to indicate the current value of the meter, which is between the aria-valuemin and aria-valuemax. Add aria-valuetext to make the meter value understandable. Add aria-valuemin to indicate the minimum value, which is less than aria-valuemax. Add aria-valuemax to indicate the maximum value, which is greater than aria-valuemin.|
| LoadingAria | role='status' | Add role='status' and aria-live='polite' to element wrapping a loading spinner or indicator. The live region must be present in the DOM before the loading indicator has rendered. Add aria-label='Loading' to loading indicator if no other text element or content is passed.|
| RadioAria | role='radio' | Add role='radio' to a checkable interactive control. Use radio in place of checkbox if only one item in a group can be checked. Add aria-checked to indicate the state of the checkbox.|
| SeperatorAria | role='separator' | Add role='separator' to a HR tag.Add aria-valuemin to indicate the minimum value. Add aria-valuemax to indicate the maximum value. Add aria-valuenow to indicate the current value. There are set default values 0. 100 and 50 respectively and can be modified. Setting aria-seperator automatically sets aria-orientation = 'horizontal'.|
| SearchboxAria | role='searchbox' | Add role='searchbox' to a textbox intended for specifying search criteria. Add aria-activedescendant to indicate the current active child (for example if the textbox has an autocomplete popup and the focus changes to the popup). Add aria-autocomplete to indicate if the textbox will display a list of suggestions. Use aria-multiline if the textbox can contain multiple lines of input. Add aria-placeholder to give users a hint of what the input should contain. Add aria-readonly if the user cannot modify the value. Add aria-required if the field is required.|
| SliderAria | role='slider' | Add role='slider' to allow users to select from a certain range. Add aria-orientation to indicate what direction the slider is oriented in. Add aria-valuemin to indicate the minimum value. Add aria-valuemax to indicate the maximum value. Add aria-valuenow to indicate the current value. If the value is not represented by a number add aria-valuetext in place of aria-valuenow.|
| SwitchAria | role='switch' | Use role='switch' on checkboxes that represent an 'on' or 'off' state. Add aria-checked to indicate whether component is on or off. Add aria-required if the field is required.|
| TextboxAria | role='textbox' | Add role='slider' to allow users to select from a certain range. Add aria-orientation to indicate what direction the slider is oriented in. Add aria-valuemin to indicate the minimum value. Add aria-valuemax to indicate the maximum value. Add aria-valuenow to indicate the current value. If the value is not represented by a number add aria-valuetext in place of aria-valuenow.|
| TabPanelAria | role='tabpanel' | "Use role='tabpanel' on elements that contains the content associated with a tab. Add aria-controls identifies the element (or elements) whose contents or presence are controlled by the current element (For example a tab controls the display of its associated tab panel). Add aria-labelledby Identifies the element (or elements) that labels the current element. Add aria-details to identify the element that provides a detailed, extended description for the object. Addaria-haspopupIndicates the availability and type of interactive popup element, such as menu or dialog. Addaria-readonlyif the user cannot modify the value. Addaria-keyshortcutsIndicates keyboard shortcuts that an author has implemented to activate or give focus to an element.| | **TimerAria** | role='timer' | Addrole='timer'to indicate to assistive technologies that an element is a numerical counter listing the amount of elapsed time from a starting point or the remaining time until an end point. Addaria-labelto provide the name of the timer. Addaria-liveto explicitly denote a live region (Elements with the role timer have an implicit aria-live value of off). Addaria-describedbyto indicate the idref of an element that contains additional instructions for navigating or operating this element. Addaria-roledescriptiono give the timer a more descriptive role text for screen readers to speak. Addaria-atomicto set whether or not the screen reader should always present the live region as a whole, even if only part of the region changes.| | **SliderAria** | role='slider' | Userole='textbox'on elements that allow input of free-form text. Addaria-activedescendantto indicate the current active child (for example if the textbox has an autocomplete popup and the focus changes to the popup). Addaria-autocompleteto indicate if the textbox will display a list of suggestions. Usearia-multilineif the textbox can contain multiple lines of input. Addaria-placeholderto give users a hint of what the input should contain. Addaria-readonlyif the user cannot modify the value. Addaria-requiredif the field is required.| | **CellAria** | role='cell' | Addsrole='cell'` aria attributes for a cell. A cell is identified as an element in a tabular container that does not contain column or row header information. “cells” are only valid within a construct that simulates a standard data table.|
Rules of ARIA
The first rule of ARIA is try to use native HTML elements instead of aria attributes whenever possible.
The second rule of ARIA is do not change native HTML semantics, unless you really have to.
Avoid:
<h2 role=tab>heading tab</h2>
Instead:
<div role=tab><h2>heading tab</h2></div>
The third rule of ARIA all aria controls must be usable by the keyboard.
The fourth rule of ARIA do not use role='presentation' and aria-hidden='true' on focusable elements.
The fifth rule of ARIA all interactive elements must have accessible names.
Installation
Please follow the VSCode instructions to install accessibility-snippets in your editor:
https://code.visualstudio.com/docs/editor/userdefinedsnippets#_install-snippets-from-the-marketplace
Once installed Navigate to Settings in vscode's preferences menu and toggle on Editor: Accept Suggestion On Enter
Controls whether suggestions should be accepted on Enter, in addition to Tab. Helps to avoid ambiguity between inserting new lines or accepting suggestions.
Testing
- Run
yarn test from the project root to run the unit test suites.
Contributing
Contributions are welcome! If you encounter problems or have a feature suggestion we'd love to hear about it. Open an issue in the GitHub issue tracker and we will do our best to provide support. Thank you!
License
accessibility-snippets is provided under the MIT license.
Contributors ✨
Thanks goes to these wonderful people (emoji key):
This project follows the all-contributors specification. Contributions of any kind welcome!
