tabtrap
v1.2.6
Published
A plugin for trapping focus inside an object
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sh0jiReadme
tabtrap
Trap focus inside an object. Useful for ensuring keyboard accessibility of modal dialogs.
Usage
Tabtrap comes with versions for two environments: a dev module version, and a standalone browser version. There are multiple ways to initialize the trap in both versions.
tabtrap.module.js
The module version should be used in dev environments that are using import/require module patterns. It won't work as a standalone file in the browser.
// es6
import tabtrap from 'tabtrap'
// non-es6
var tabtrap = require('tabtrap')
// initialize with the static .trapAll() method to trap multiple elements
tabtrap.trapAll('.modal')
// initialize with the class (only traps the first element found)
new tabtrap('.modal')tabtrap.browser.js
The browser version can be used directly in the browser as a standalone file. jQuery is optional.
<body>
...
<script src="jquery.min.js" type="text/javascript"></script>
<script src="tabtrap.browser.js" type="text/javascript"></script>
<script type="text/javascript">
// initialize with jQuery
$('.modal').tabtrap()
// initialize without jQuery
new tabtrap('.modal')
</script>
</body>Options
| Option | Type | Default |
| ------ | ---- | ------- |
| disableOnEscape | boolean | false |
| tabbableElements | object | (view source) |
Methods
Tabtrap.trapAll(element[, options])
Tabtrap.trapAll('.modal', { disableOnEscape: true })You can also place the element or element selector inside the options object:
Tabtrap.trapAll(options)
Tabtrap.trapAll({
element: '.modal',
disableOnEscape: true
})The following methods are used with jQuery
.tabtrap('enable')
$('#open').on('click', (e) => {
$('.modal').tabtrap('enable')
}).tabtrap('disable')
$('#close').on('click', (e) => {
$('.modal').tabtrap('disable');
});.tabtrap('toggle')
// probably don't do this.
$(document).on('keydown', function (e) {
if (e.which === 84) { // 't'
$('.modal').tabtrap('toggle');
}
});