WebKit2.NavigationPolicyDecision.mouse_button

NavigationPolicyDecision.mouse_button: Number(guint) (Read)
  

If the navigation associated with this policy decision was originally triggered by a mouse event, this property contains non-zero button number of the button triggering that event. The button numbers match those from GDK. If the navigation was not triggered by a mouse event, the value of this property will be 0.