balmet.com

map.js (7758B)

---

 ( function ( $, document, window, google, rwmb, i18n ) {
 	'use strict';
 
 	// Use function construction to store map & DOM elements separately for each instance
 	var MapField = function ( $container ) {
 		this.$container = $container;
 	};
 
 	// Geocoder service.
 	var geocoder = new google.maps.Geocoder();
 
 	// Use prototype for better performance
 	MapField.prototype = {
 		// Initialize everything
 		init: function () {
 			this.initDomElements();
 			this.initMapElements();
 
 			this.initMarkerPosition();
 			this.addListeners();
 			this.autocomplete();
 		},
 
 		// Initialize DOM elements
 		initDomElements: function () {
 			this.$canvas = this.$container.find( '.rwmb-map-canvas' );
 			this.canvas = this.$canvas[0];
 			this.$coordinate = this.$container.find( '.rwmb-map' );
 			this.addressField = this.$container.data( 'address-field' );
 		},
 
 		// Initialize map elements
 		initMapElements: function () {
 			var defaultLoc = this.$canvas.data( 'default-loc' ),
 				latLng;
 
 			defaultLoc = defaultLoc ? defaultLoc.split( ',' ) : [53.346881, - 6.258860];
 			latLng = new google.maps.LatLng( defaultLoc[0], defaultLoc[1] ); // Initial position for map
 
 			this.map = new google.maps.Map( this.canvas, {
 				center: latLng,
 				zoom: 14,
 				streetViewControl: 0,
 				mapTypeId: google.maps.MapTypeId.ROADMAP
 			} );
 			this.marker = new google.maps.Marker( {position: latLng, map: this.map, draggable: true} );
 		},
 
 		// Initialize marker position
 		initMarkerPosition: function () {
 			var coordinate = this.$coordinate.val(),
 				location,
 				zoom;
 
 			if ( coordinate ) {
 				location = coordinate.split( ',' );
 				this.marker.setPosition( new google.maps.LatLng( location[0], location[1] ) );
 
 				zoom = location.length > 2 ? parseInt( location[2], 10 ) : 14;
 
 				this.map.setCenter( this.marker.position );
 				this.map.setZoom( zoom );
 			} else if ( this.addressField ) {
 				this.geocodeAddress( false );
 			}
 		},
 
 		// Add event listeners for 'click' & 'drag'
 		addListeners: function () {
 			var that = this;
 
 			/*
 			 * Auto change the map when there's change in address fields.
 			 * Works only for multiple address fields as single address field has autocomplete functionality.
 			 */
 			if ( this.addressField.split( ',' ).length > 1 ) {
 				var geocodeAddress = that.geocodeAddress.bind( that );
 				var addressFields = this.addressField.split( ',' ).forEach( function( part ) {
 					var $field = that.findAddressField( part );
 					if ( null !== $field ) {
 						$field.on( 'change', geocodeAddress );
 					}
 				} );
 			}
 
 			google.maps.event.addListener( this.map, 'click', function ( event ) {
 				that.marker.setPosition( event.latLng );
 				that.updateCoordinate( event.latLng );
 			} );
 
 			google.maps.event.addListener( this.map, 'zoom_changed', function ( event ) {
 				that.updateCoordinate( that.marker.getPosition() );
 			} );
 
 			google.maps.event.addListener( this.marker, 'drag', function ( event ) {
 				that.updateCoordinate( event.latLng );
 			} );
 
 			/**
 			 * Custom event to refresh maps when in hidden divs.
 			 * @see https://developers.google.com/maps/documentation/javascript/reference ('resize' Event)
 			 */
 			var refresh = that.refresh.bind( this );
 			$( window ).on( 'rwmb_map_refresh', refresh );
 
 			// Refresh on meta box hide and show
 			rwmb.$document.on( 'postbox-toggled', refresh );
 			// Refresh on sorting meta boxes
 			$( '.meta-box-sortables' ).on( 'sortstop', refresh );
 		},
 
 		refresh: function () {
 			if ( ! this.map ) {
 				return;
 			}
 			var zoom = this.map.getZoom(),
 				center = this.map.getCenter();
 
 			google.maps.event.trigger( this.map, 'resize' );
 			this.map.setZoom( zoom );
 			this.map.panTo( center );
 		},
 
 		// Autocomplete address
 		autocomplete: function () {
 			var that = this,
 				$address = this.getAddressField();
 
 			if ( null === $address ) {
 				return;
 			}
 
 			// If Meta Box Geo Location installed. Do not run autocomplete.
 			if ( $( '.rwmb-geo-binding' ).length ) {
 				var geocodeAddress = that.geocodeAddress.bind( that );
 				$address.on( 'selected_address', geocodeAddress );
 				return false;
 			}
 
 			$address.autocomplete( {
 				source: function ( request, response ) {
 					var options = {
 						'address': request.term,
 						'region': that.$canvas.data( 'region' )
 					};
 					geocoder.geocode( options, function ( results ) {
 						if ( ! results.length ) {
 							response( [ {
 								value: '',
 								label: i18n.no_results_string
 							} ] );
 							return;
 						}
 						response( results.map( function ( item ) {
 							return {
 								label: item.formatted_address,
 								value: item.formatted_address,
 								latitude: item.geometry.location.lat(),
 								longitude: item.geometry.location.lng()
 							};
 						} ) );
 					} );
 				},
 				select: function ( event, ui ) {
 					var latLng = new google.maps.LatLng( ui.item.latitude, ui.item.longitude );
 					that.map.setCenter( latLng );
 					that.marker.setPosition( latLng );
 					that.updateCoordinate( latLng );
 				}
 			} );
 		},
 
 		// Update coordinate to input field
 		updateCoordinate: function ( latLng ) {
 			var zoom = this.map.getZoom();
 			this.$coordinate.val( latLng.lat() + ',' + latLng.lng() + ',' + zoom ).trigger( 'change' );
 		},
 
 		// Find coordinates by address
 		geocodeAddress: function ( notify ) {
 			var address = this.getAddress(),
 				that = this;
 			if ( ! address ) {
 				return;
 			}
 
 			if ( false !== notify ) {
 				notify = true;
 			}
 			geocoder.geocode( {'address': address}, function ( results, status ) {
 				if ( status !== google.maps.GeocoderStatus.OK ) {
 					if ( notify ) {
 						alert( i18n.no_results_string );
 					}
 					return;
 				}
 				that.map.setCenter( results[0].geometry.location );
 				that.marker.setPosition( results[0].geometry.location );
 				that.updateCoordinate( results[0].geometry.location );
 			} );
 		},
 
 		// Get the address field.
 		getAddressField: function() {
 			// No address field or more than 1 address fields, ignore
 			if ( ! this.addressField || this.addressField.split( ',' ).length > 1 ) {
 				return null;
 			}
 			return this.findAddressField( this.addressField );
 		},
 
 		// Get the address value for geocoding.
 		getAddress: function() {
 			var that = this;
 
 			return this.addressField.split( ',' )
 				.map( function( part ) {
 					part = that.findAddressField( part );
 					return null === part ? '' : part.val();
 				} )
 				.join( ',' ).replace( /\n/g, ',' ).replace( /,,/g, ',' );
 		},
 
 		// Find address field based on its name attribute. Auto search inside groups when needed.
 		findAddressField: function( fieldName ) {
 			// Not in a group.
 			var $address = $( 'input[name="' + fieldName + '"]');
 			if ( $address.length ) {
 				return $address;
 			}
 
 			// If map and address is inside a cloneable group.
 			$address = this.$container.closest( '.rwmb-group-clone' ).find( 'input[name*="[' + fieldName + ']"]' );
 			if ( $address.length ) {
 				return $address;
 			}
 
 			// If map and address is inside a non-cloneable group.
 			$address = this.$container.closest( '.rwmb-group-wrapper' ).find( 'input[name*="[' + fieldName + ']"]' );
 			if ( $address.length ) {
 				return $address;
 			}
 
 			return null;
 		}
 	};
 
 	function createController() {
 		var $this = $( this ),
 			controller = $this.data( 'mapController' );
 		if ( controller ) {
 			return;
 		}
 
 		controller = new MapField( $this );
 		controller.init();
 		$this.data( 'mapController', controller );
 	}
 
 	function init( e ) {
 		$( e.target ).find( '.rwmb-map-field' ).each( createController );
 	}
 
 	function restart() {
 		$( '.rwmb-map-field' ).each( createController );
 	}
 
 	rwmb.$document
 		.on( 'mb_ready', init )
 		.on( 'clone', '.rwmb-input', restart );
 } )( jQuery, document, window, google, rwmb, RWMB_Map );