Helper to typeahead.js with google places

jquery.places-search.js

/**
 * jquery.places-search.js - V0.0.1
 * Created by Richard Willis; 2013 Licensed MIT
 */ (function() {

    function PlacesSearch(element, options) {

        this.element = $(element);
        this.options = $.extend({}, options);
        this.onSelectAddress = this.options.onSelectAddress || $.noop;

        this.autocompleteService = new google.maps.places.AutocompleteService();
        this.placesService = new google.maps.places.PlacesService($('<div />')[0]);

        this.element.typeahead({
            source: $.proxy(this.getPredictions, this),
            updater: $.proxy(this.selectAddress, this)
        });
    };

    PlacesSearch.prototype = {
        constructor: PlacesSearch,
        getPredictions: function(query, process) {
            this.autocompleteService.getPlacePredictions({
                input: query
            }, $.proxy(this.onGetPrediction, this, process));
        },
        onGetPrediction: function(process, predictions, status) {
            if (status == google.maps.places.PlacesServiceStatus.OK) {
                this.predictions = predictions;
                process($.map(predictions, function(prediction) {
                    return prediction.description;
                }));
            };
        },
        onGetPlaceDetails: function(result, status) {
            if (status !== google.maps.GeocoderStatus.OK) {
                return window.alert('Location was not found. Please try again.');
            }
            this.options.onSelectAddress(result);
        },
        selectAddress: function(address) {

            // Get the prediction reference.
            var reference = $.grep(this.predictions, function(prediction) {
                return prediction.description === address;
            })[0].reference;

            // Now we can reliably geocode the address.
            this.placesService.getDetails({
                reference: reference
            }, $.proxy(this.onGetPlaceDetails, this));

            return address;
        }
    };

    $.fn.placesSearch = function(options) {
        return this.each(function() {
            new PlacesSearch(this, options);
        });
    };
}()); 

usage.js

$(function() {
  	$('#search-field').placesSearch({
  		onSelectAddress: function(result) {
    		console.log(result);
    	}
  	});
});