dverbovyi/angular-heremaps

module.exports = HereMapsEventsFactory;

HereMapsEventsFactory.$inject = [
    'HereMapsUtilsService',
    'HereMapsMarkerService',
    'HereMapsCONSTS',
    'HereMapsInfoBubbleFactory'
];
function HereMapsEventsFactory(HereMapsUtilsService, HereMapsMarkerService, HereMapsCONSTS, HereMapsInfoBubbleFactory) {
    function Events(platform, Injector, listeners) {
        this.map = platform.map;
        this.listeners = listeners;
        this.inject = new Injector();
        this.events = platform.events = new H.mapevents.MapEvents(this.map);
        this.behavior = platform.behavior = new H.mapevents.Behavior(this.events);
        this.bubble = HereMapsInfoBubbleFactory.create();

        this.setupEventListeners();
    }

    var proto = Events.prototype;

    proto.setupEventListeners = setupEventListeners;
    proto.setupOptions = setupOptions;
    proto.triggerUserListener = triggerUserListener;
    proto.infoBubbleHandler = infoBubbleHandler;  

    return {
        start: function(args) {
            if (!(args.platform.map instanceof H.Map))
                return console.error('Missed required map instance');

            var events = new Events(args.platform, args.injector, args.listeners);

            args.options && events.setupOptions(args.options);
        }
    }

    function setupEventListeners() {
        var self = this;

        HereMapsUtilsService.addEventListener(this.map, 'tap', this.infoBubbleHandler.bind(this));

        HereMapsUtilsService.addEventListener(this.map, 'pointermove', this.infoBubbleHandler.bind(this));

        HereMapsUtilsService.addEventListener(this.map, 'dragstart', function(e) {
            if (HereMapsMarkerService.isMarkerInstance(e.target)) {
                self.behavior.disable();
            }

            self.triggerUserListener(HereMapsCONSTS.USER_EVENTS[e.type], e);
        });

        HereMapsUtilsService.addEventListener(this.map, 'drag', function(e) {
            var pointer = e.currentPointer,
                target = e.target;

            if (HereMapsMarkerService.isMarkerInstance(target)) {
                target.setPosition(self.map.screenToGeo(pointer.viewportX, pointer.viewportY));
            }

            self.triggerUserListener(HereMapsCONSTS.USER_EVENTS[e.type], e);
        });

        HereMapsUtilsService.addEventListener(this.map, 'dragend', function(e) {
            if (HereMapsMarkerService.isMarkerInstance(e.target)) {
                self.behavior.enable();
            }

            self.triggerUserListener(HereMapsCONSTS.USER_EVENTS[e.type], e);
        });

        HereMapsUtilsService.addEventListener(this.map, 'mapviewchangestart', function(e) {
            self.triggerUserListener(HereMapsCONSTS.USER_EVENTS[e.type], e);
        });

        HereMapsUtilsService.addEventListener(this.map, 'mapviewchange', function(e) {
            self.triggerUserListener(HereMapsCONSTS.USER_EVENTS[e.type], e);
        });

        HereMapsUtilsService.addEventListener(this.map, 'mapviewchangeend', function(e) {
            self.triggerUserListener(HereMapsCONSTS.USER_EVENTS[e.type], e);
        });
    }

    function setupOptions(options) {
        if (!options)
            return;

        this.map.draggable = !!options.draggable;
    }

    function triggerUserListener(eventName, e) {
        if (!this.listeners)
            return;

        var callback = this.listeners[eventName];

        callback && callback(e);
    }
    
    function infoBubbleHandler(e){
        var ui = this.inject('ui');
        
        if(ui)
            this.bubble.toggle(e, ui);
            
        this.triggerUserListener(HereMapsCONSTS.USER_EVENTS[e.type], e);      
    }

};