var Class = {
    create: function() {
        return function() {
            this.initialize.apply(this, arguments);
        }
    }
}

Object.extend = function(destination, source) {
    for (var property in source) {
        destination[property] = source[property];
    }
    return destination;
}

var $A = Array.from = function(iterable) {
    if (!iterable) return [];
    if (iterable.toArray) {
        return iterable.toArray();
    } else {
        var results = [];
        for (var i = 0, length = iterable.length; i < length; i++)
            results.push(iterable[i]);
        return results;
    }
}

Function.prototype.bind = function() {
    var __method = this, args = $A(arguments), object = args.shift();
    return function() {
        return __method.apply(object, args.concat($A(arguments)));
    }
}

/*	Marker manager */
var markerManager = Class.create();
Object.extend(markerManager.prototype, {
    _markers: [],

    initialize: function(map) {
        this.map = map;
        this._haltRefresh = false;
    },

    addMarker: function(m) {
        this._markers.push(m);
        this._resizeBounds(m.getPoint());
    },

    onMoveEnd: function() {
        //this.refresh();
    },

    onZoomEnd: function() {
        //this.refresh();
    },

    clearOverlays: function() {
        this.map.clearOverlays();
        this._markers = [];
    },

    refresh: function() {
        if (!this._haltRefresh) {
            this.map.clearOverlays();
            for (var j = 0; j < this._markers.length; j++) {
                var m = this._markers[j];
                //if(this.map.getBounds().contains(m.getPoint())) {
                this.map.addOverlay(m);
                //}
            }
        }
    },

    resetView: function() {
        this._haltRefresh = true;
        if (this.bounds) {
            var bounds = this.bounds;
            var center = this.bounds.getCenter();
            var zoomLevel = 15;
            this.map.setCenter(center, zoomLevel);
            while (zoomLevel > 0 && !this.map.getBounds().containsBounds(bounds)) {
                zoomLevel--;
                this.map.setCenter(center, zoomLevel);
            }
        }
        this.bounds = null;
        this._haltRefresh = false;
    },

    _resizeBounds: function(p) {
        if (!this.bounds) this.bounds = new GLatLngBounds(p, p);
        else if (p) { this.bounds.extend(p); }
    }

});