WAI-ARIA: Authoring Practices Guide

This repository maintains the WAI-ARIA Authoring Practices Guide. This is developed by the ARIA Working Group. The staff contact is Michael Cooper. Please do not provide commit access to this repository without coordination.

Contributing to this Repository

Code conformance

• All HTML should validate in the NU HTML Validator. Exceptions to this rule are warnings and errors related to future ARIA features we need to implement.
• To keep code in this repository consistent; editors should use a text editor that supports EditorConfig.

Writing code examples

• Choose a pattern from the Design Patterns Status document that is missing a code example.

• Via the command line, run:

    $ bin/generate <name>
  

  Where <name> is the dasherized name of the design pattern example. This creates a new example directory and file with the same name, based on a template.

• Edit the new html file with an example corresponding to the description in aria-practices.html

Running ESLint, the pluggable linting utility for JavaScript and JSX

ESLint is an automated code style checker. We use it to ensure common code styling practices in this repository. Pull requests with ESLint errors will not be merged.

Setup ESLint so you can run it locally

1. If you do not already have node.js installed, go to the node installer
2. When you install Node, NPM is included.
3. In a terminal window from the directory that contains the aria-practices repository, run npm install. A successful install will display a tree of installed packages.

Test and fix your code

1. Open a terminal window to the directory that contains the aria-practices repository
2. The repository has a script defined that will test all JavaScript in the examples directory. To run it, execute the command npm test.
3. Many errors can be fixed automatically with the command npm run fix.
4. After running fix, test again to see what you need to fix manually.

When the linter encounters errors, it will report them in the console. The error report will contain the file name and line number, and it will indicate the character or place in the line that raised the style violation. To fix an error, satisfy the change that the violation indicates.

For example, here is an error for an invalid variable name style. Variables must follow a camelCase convention.

/Users/user1/Documents/github/aria-practices/examples/slider/js/text-slider.js
  19:8  error  Identifier 'value_nodes' is not in camel case  camelcase

The error occurred in examples/slider/js/text-slider.js, on line 19 and the offending character is indicated by the number 8 after the colon. Change the variable value_nodes to valueNodes in your source file to eliminate this error.

To see the complete list of style rules that are applied by ESLint, Check out the .eslint.json file in the root of the project.

Editorial documentation

General documentation for editing ARIA deliverables is available in the ARIA repository. Some of that documentation covers technical procedures not needed for this specification.

How to update document snapshot

Note: These instructions are for editors of the APG who have repository commit access.

1. Go to the editors draft on rawgit
2. Press the ReSpec button (top right hand corner)
3. Select 'Save snapshot'
4. Select 'Save as HTML'
5. Open the gh-pages branch of the aria-practices repository
6. Open index.html in your preferred editor
7. Overwrite contents of index.html with the snapshot copy you saved
8. Commit and push changes
9. Review changes at GitHub pages APG snapshot