Controls the keyboard keys. This module uses jQuery.hotkeys plugin. If desired it can be replaced with any other keyboard interface code without affecting the keyboard consumer modules.
Fires:
Listens to Events:
- 
                        
module:event-store#event:RegisterKeyCombinations for "KeyCombinations" state
 
Example
var KeyboardController = require('keyboard-controller.js');
// a generic Viewer constructor
function Viewer(opts) {
    var myKeyboardController = KeyboardController(this);
}
                (require("keyboard-controller"))(viewer)
Creates the keyboard controller module.
Parameters:
| Name | Type | Description | 
|---|---|---|
viewer | 
                            Core | 
                                 The core viewer to which the module will attach.  | 
                        
Methods
destroy()
Destroys the module.