angular/material — pull request #149 by marcysutton (2014-08-20 21:51:56+00:00)
Title: Accessible checkbox

Users should be able to to interact with `material-checkbox` components using a screen reader and keyboard. These changes make those components into interactive elements by adding `tabIndex` and visual feedback on focus, the ARIA `checkbox` role and a dynamically-updated `aria-checked="[ true | false ]"` attribute.