source: sandbox/2.3-MailArchiver/calendar/js/dhtmlx/sources/ext/ext_key_nav.js @ 6779

//Initial idea and implementation by Steve MC
(function (){

var lightboxopen = false;

scheduler.attachEvent("onBeforeLightbox",function(){ lightboxopen = true; return true; });
scheduler.attachEvent("onAfterLightbox",function(){ lightboxopen = false; return true; });

dhtmlxEvent(document,(_isOpera?"keypress":"keydown"),function(e){
        e=e||event;
        if (!lightboxopen){
                
                if (e.keyCode == 37 || e.keyCode == 39) { // Left-Arrow
                        e.cancelBubble = true;
                        
                    var next = scheduler.date.add(scheduler._date,(e.keyCode == 37 ? -1 : 1 ),scheduler._mode);
                    scheduler.setCurrentView(next);
                    return true;
                } else if (e.ctrlKey && e.keyCode == 67){
                        scheduler._copy_id = scheduler._select_id;
                } else if (e.ctrlKey && e.keyCode == 86){
                        var ev = scheduler.getEvent(scheduler._copy_id);
                        if (ev){
                                var new_ev = scheduler._copy_event(ev);
                                        new_ev.id = scheduler.uid();
                                        scheduler.addEvent(new_ev);
                        }
                }
        }
});

})();