Auto complete for text input fields (input list datalist polyfill) - nschonni/wet-boew GitHub Wiki

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Table of Contents Overview Description Benefits Recommended usage Example Code Examples Development Known Issues Version History References

Project lead: Eric Poirier (@ericpoirier)

The HTML5 input list attribute and the datalist element add auto-complete functionality to specific text input fields by dynamically displaying a list of words that match the user’s input. Because some browsers do not support this functionality natively, this polyfill emulates the same functionality using generic HTML and WAI-ARIA. Browsers that do not support the input list attribute and the datalist element natively ignore the auto-complete functionality and therefore, the text input field behaves like it normally does.

• In cases where browser don't support the attribute and element, the polyfill is automatically loaded.
• This polyfill ensures that the auto-complete functionality is added to the text input field and the necessary information is exposed to assistive technologies by adding WAI-ARIA.

To use the polyfill, the standard input list attribute and datalist element must be used.

Note: Remove space in "< !--"

<label for="city">City</label>
<input type="text" id="city" name="city" list="suggestions" />
<datalist id="suggestions">
	< !--[if lte IE 9]><select><![endif]-->
	<option label="" value="Calgary"></option>
	<option label="" value="Edmonton"></option>
	<option label="" value="Iqualuit"></option>
	<option label="" value="Ottawa"></option>
	<option label="" value="Montreal"></option>
	<option label="" value="St. John"></option>
	<option label="" value="St. John's"></option>
	<option label="" value="Toronto"></option>
	<option label="" value="Vancouver"></option>
	<option label="" value="Whitehorse"></option>
	<option label="" value="Winnipeg"></option>
	<option label="" value="Yellowknife"></option>
	<!- -[if lte IE 9]></select><![endif]-->
</datalist>

Working example

• English example
• French example

Auto-complete functionality is dependent upon native support for the HTML5 input list attribute and the datalist element or the auto-complete for text input fields polyfill.

The code for the auto-complete for text input fields is located in several places within the source folder of WET:

• js/polyfills/datalist.js - contains the JavaScript code for the auto-complete for text input fields polyfill
• js/sass/includes/_datalist.scss - contains the CSS for the auto-complete for text input fields polyfill
• js/sass/includes/_datalist-ie7.scss - contains the IE7-specific CSS for the auto-complete for text input fields polyfill

There are no known issues at this point in time.

• Datalist.js
• _datalist.scss
• _datalist-ie7.scss

• HTML5 input list attribute
• HTML5 datalist element