ui.leaflet.webpack/services/leafletBoundsHelpers.js

Webpack version of ui-leaflet (https://github.com/angular-ui/ui-leaflet)

angular.module('ui-leaflet').factory('leafletBoundsHelpers', 
/** @ngInject */
[ 'leafletLogger', 'leafletHelpers', 'L', function (leafletLogger, leafletHelpers, L) {

    var isArray = leafletHelpers.isArray,
        isNumber = leafletHelpers.isNumber,
        isFunction = leafletHelpers.isFunction,
        isDefined = leafletHelpers.isDefined,
        $log = leafletLogger;

    function _isValidBounds(bounds) {
        return angular.isDefined(bounds) && angular.isDefined(bounds.southWest) &&
               angular.isDefined(bounds.northEast) && angular.isNumber(bounds.southWest.lat) &&
               angular.isNumber(bounds.southWest.lng) && angular.isNumber(bounds.northEast.lat) &&
               angular.isNumber(bounds.northEast.lng);
    }

    return {
        createLeafletBounds: function(bounds) {
            if (_isValidBounds(bounds)) {
                return L.latLngBounds([bounds.southWest.lat, bounds.southWest.lng],
                                      [bounds.northEast.lat, bounds.northEast.lng ]);
            }
        },

        isValidBounds: _isValidBounds,

        createBoundsFromArray: function(boundsArray) {
            if (!(isArray(boundsArray) && boundsArray.length === 2 &&
                  isArray(boundsArray[0]) && isArray(boundsArray[1]) &&
                  boundsArray[0].length === 2 && boundsArray[1].length === 2 &&
                  isNumber(boundsArray[0][0]) && isNumber(boundsArray[0][1]) &&
                  isNumber(boundsArray[1][0]) && isNumber(boundsArray[1][1]))) {
                $log.error("[AngularJS - Leaflet] The bounds array is not valid.");
                return;
            }

            return {
                northEast: {
                    lat: boundsArray[0][0],
                    lng: boundsArray[0][1]
                },
                southWest: {
                    lat: boundsArray[1][0],
                    lng: boundsArray[1][1]
                }
            };
        },

        createBoundsFromLeaflet: function(lfBounds) {
            if (!(isDefined(lfBounds) && isFunction(lfBounds.getNorthEast) && isFunction(lfBounds.getSouthWest))) {
                $log.error("[AngularJS - Leaflet] The leaflet bounds is not valid object.");
                return;
            }

            var northEast = lfBounds.getNorthEast(),
                southWest = lfBounds.getSouthWest();

            return {
                northEast: {
                    lat: northEast.lat,
                    lng: northEast.lng
                },
                southWest: {
                    lat: southWest.lat,
                    lng: southWest.lng
                }
            };
        }
    };
}]);