73bcce88
 luigser
COMPONENTS
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`Polymer.IronA11yKeysBehavior` provides a normalized interface for processing
keyboard commands that pertain to [WAI-ARIA best practices](http://www.w3.org/TR/wai-aria-practices/#kbd_general_binding).
The element takes care of browser differences with respect to Keyboard events
and uses an expressive syntax to filter key presses.
Use the `keyBindings` prototype property to express what combination of keys
will trigger the event to fire.
Use the `key-event-target` attribute to set up event handlers on a specific
node.
The `keys-pressed` event will fire when one of the key combinations set with the
`keys` property is pressed.
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a new hope