interface KeyboardEvent : UIEvent {
constructor(DOMString type, optional KeyboardEventInit eventInitDict);
const unsigned long DOM_KEY_LOCATION_STANDARD = 0x00;
const unsigned long DOM_KEY_LOCATION_LEFT = 0x01;
const unsigned long DOM_KEY_LOCATION_RIGHT = 0x02;
const unsigned long DOM_KEY_LOCATION_NUMPAD = 0x03;
readonly attribute DOMString key;
readonly attribute DOMString code;
readonly attribute unsigned long location;
readonly attribute boolean ctrlKey;
readonly attribute boolean shiftKey;
readonly attribute boolean altKey;
readonly attribute boolean metaKey;
readonly attribute boolean repeat;
readonly attribute boolean isComposing;
boolean getModifierState(DOMString keyArg);
readonly attribute DOMString keyIdentifier;
[ImplementedAs=location] readonly attribute unsigned long keyLocation;
readonly attribute boolean altGraphKey;
readonly attribute unsigned long charCode;
readonly attribute unsigned long keyCode;
readonly attribute unsigned long which;
void initKeyboardEvent(optional DOMString type = "undefined", optional boolean canBubble = false, optional boolean cancelable = false,
optional WindowProxy? view = null, optional DOMString keyIdentifier = "undefined", optional unsigned long location = 0,
optional boolean ctrlKey = false, optional boolean altKey = false, optional boolean shiftKey = false, optional boolean metaKey = false, optional boolean altGraphKey = false);
};
dictionary KeyboardEventInit : EventModifierInit {
DOMString key = "";
DOMString code = "";
unsigned long location = 0;
boolean repeat = false;
boolean isComposing = false;
DOMString keyIdentifier = "";
unsigned long keyLocation;
unsigned long charCode = 0;
unsigned long keyCode = 0;
unsigned long which = 0;
};