Function onDown

Registers a handler for when the modifiers of the given Bindable are pressed. This event won't be fired again until the modifiers of the Bindable are then released.

Your decorated method should return whether or not the bindable was actually activated. (For example, if the mouse was in the right spot and the action can currently be executed.) If you return true, no other @Bind.onDown handlers will be run. If you return false, other matching @Bind.onDown handlers will be run.

Registers a handler for when the modifiers of the given Bindable are pressed. This handler will always be executed, even if other handlers also matched the catalyst.