Ember handle save action and extract pressed key - ember.js

Question

I have a textarea from which I want to catch a shift-enter event, which is pressed inside it.
enter as well as shift-enter both call the save method of the controller. But inside the save method, I don't seem to have an param giving me the pressed key(number).
When I implement the keyUp: (e) -> method inside my view(controller), it either not called when the save method is implemented inside the controller, or, when the save method is not implemented, I get an error saying nothing handled the action save.
Actually I only want to know if the pressed key(s), which called the save action was either enter or shift-enter.
What's the best way to do this? Thanks!
Update
My code looks like this now:
ContactIndex = Ember.View.extend
listenKey: ((event) ->
if(event.which == 13)
#get('controller').send('save', event.shiftKey)
).on('keyDown') # When I use `keyUp` instead, the isShift boolean value is not being transmitted.
Contact = Ember.ObjectController.extend
save: (isShift) ->
console.log('Shift Key Pressed: ' + isShift)
false
Every time I press enter or shift-enter, the save action gets called twice.

Answer 1

its better to pass a boolean value whether its a shift key event or not from the view to controller.
App.IndexController=Ember.Controller.extend({
actions: {
save: function(isShift){
console.log('Shift Key Pressed: ' + isShift);
return false;
}
}
});
App.IndexView=Ember.View.extend({
listenKey: function(event){
if(event.which===13){
this.get('controller').send('save',event.shiftKey);
}
}.on('keyUp')
});
Check this jsbin http://emberjs.jsbin.com/fazibu/1/edit