2018-01-26 15:50:15 +01:00

474 lines
15 KiB
JavaScript

/* globals jQuery, google, sowb */
var sowb = window.sowb || {};
sowb.SiteOriginGoogleMap = function($) {
return {
// So that we can always display something, even if no location or address was entered.
DEFAULT_LOCATIONS: [
'Addo Elephant National Park, R335, Addo',
'Cape Town, Western Cape, South Africa',
'San Francisco Bay Area, CA, United States',
'New York, NY, United States',
],
showMap: function(element, location, options) {
var zoom = Number(options.zoom);
if ( !zoom ) zoom = 14;
var userMapTypeId = 'user_map_style';
var mapOptions = {
zoom: zoom,
scrollwheel: options.scrollZoom,
draggable: options.draggable,
disableDefaultUI: options.disableUi,
zoomControl: options.zoomControl,
panControl: options.panControl,
center: location,
mapTypeControlOptions: {
mapTypeIds: [google.maps.MapTypeId.ROADMAP, userMapTypeId]
}
};
var map = new google.maps.Map(element, mapOptions);
var userMapOptions = {
name: options.mapName
};
var userMapStyles = options.mapStyles;
if ( userMapStyles ) {
var userMapType = new google.maps.StyledMapType(userMapStyles, userMapOptions);
map.mapTypes.set(userMapTypeId, userMapType);
map.setMapTypeId(userMapTypeId);
}
if (options.markerAtCenter) {
this.centerMarker = new google.maps.Marker({
position: location,
map: map,
draggable: options.markersDraggable,
icon: options.markerIcon,
title: ''
});
}
if(options.keepCentered) {
var center;
google.maps.event.addDomListener(map, 'idle', function () {
center = map.getCenter();
});
google.maps.event.addDomListener(window, 'resize', function () {
map.setCenter(center);
});
}
this.linkAutocompleteField(options.autocomplete, options.autocompleteElement, map, options);
this.showMarkers(options.markerPositions, map, options);
this.showDirections(options.directions, map, options);
// If the Google Maps element is hidden it won't display properly. This is an attempt to make it display by
// calling resize when a custom 'show' event is fired. The 'show' event is something we fire in a few widgets
// like Accordion and Tabs and in future any widgets which might show and hide content using `display:none;`.
if ( $( element ).is( ':hidden' ) ) {
var $visParent = $( element ).closest( ':visible' );
$visParent.find( '> :hidden' ).on( 'show', function () {
google.maps.event.trigger(map, 'resize');
map.setCenter(location);
} );
}
},
linkAutocompleteField: function (autocomplete, autocompleteElement, map, options) {
if( autocomplete && autocompleteElement ) {
var updateMapLocation = function ( address ) {
if ( this.inputAddress !== address ) {
this.inputAddress = address;
this.getLocation( this.inputAddress ).done(
function ( location ) {
map.setZoom( 15 );
map.setCenter( location );
if( this.centerMarker ) {
this.centerMarker.setPosition( location );
this.centerMarker.setTitle( this.inputAddress );
}
}.bind( this )
);
}
}.bind( this );
var $autocompleteElement = $( autocompleteElement );
autocomplete.addListener( 'place_changed', function () {
var place = autocomplete.getPlace();
map.setZoom( 15 );
if ( place.geometry ) {
map.setCenter( place.geometry.location );
if( this.centerMarker ) {
this.centerMarker.setPosition(place.geometry.location);
}
}
}.bind( this ) );
google.maps.event.addDomListener( autocompleteElement, 'keypress', function ( event ) {
var key = event.keyCode || event.which;
if ( key === '13' ) {
event.preventDefault();
}
} );
$autocompleteElement.focusin( function () {
if ( !this.resultsObserver ) {
var autocompleteResultsContainer = document.querySelector( '.pac-container' );
this.resultsObserver = new MutationObserver( function () {
var $topResult = $( $( '.pac-item' ).get( 0 ) );
var queryPartA = $topResult.find( '.pac-item-query' ).text();
var queryPartB = $topResult.find( 'span' ).not( '[class]' ).text();
var topQuery = queryPartA + ( queryPartB ? (', ' + queryPartB) : '' );
if ( topQuery ) {
updateMapLocation( topQuery );
}
} );
var config = { attributes: true, childList: true, characterData: true };
this.resultsObserver.observe( autocompleteResultsContainer, config );
}
}.bind( this ) );
var revGeocode = function ( latLng ) {
this.getGeocoder().geocode( { location: latLng }, function ( results, status ) {
if ( status === google.maps.GeocoderStatus.OK ) {
if ( results.length > 0 ) {
var addr = results[ 0 ].formatted_address;
$autocompleteElement.val( addr );
if( this.centerMarker ) {
this.centerMarker.setPosition(latLng);
this.centerMarker.setTitle(addr);
}
}
}
}.bind( this ) );
}.bind( this );
map.addListener( 'click', function ( event ) {
revGeocode( event.latLng );
} );
this.centerMarker.addListener( 'dragend', function ( event ) {
revGeocode( event.latLng );
} );
}
},
showMarkers: function(markerPositions, map, options) {
if ( markerPositions && markerPositions.length ) {
this.infoWindows = [];
var markerBatches = [];
var BATCH_SIZE = 10;
// Group markers into batches of 10 in attempt to avoid query limits
for ( var i = 0; i < markerPositions.length; i++ ) {
var batchIndex = parseInt( i / BATCH_SIZE ); // truncate decimals
if ( markerBatches.length === batchIndex ) {
markerBatches[ batchIndex ] = [];
}
markerBatches[ batchIndex ][ i % BATCH_SIZE ] = markerPositions[ i ];
}
var geocodeMarkerBatch = function ( markerBatchHead, markerBatchTail ) {
var doneCount = 0;
markerBatchHead.forEach( function ( mrkr ) {
this.getLocation( mrkr.place ).done( function ( location ) {
var mrkerIcon = options.markerIcon;
if(mrkr.custom_marker_icon) {
mrkerIcon = mrkr.custom_marker_icon;
}
var marker = new google.maps.Marker( {
position: location,
map: map,
draggable: options.markersDraggable,
icon: mrkerIcon,
title: ''
} );
if ( mrkr.hasOwnProperty( 'info' ) && mrkr.info ) {
var infoWindowOptions = { content: mrkr.info };
if ( mrkr.hasOwnProperty( 'info_max_width' ) && mrkr.info_max_width ) {
infoWindowOptions.maxWidth = mrkr.info_max_width;
}
var infoDisplay = options.markerInfoDisplay;
infoWindowOptions.disableAutoPan = infoDisplay === 'always';
var infoWindow = new google.maps.InfoWindow( infoWindowOptions );
this.infoWindows.push( infoWindow );
var openEvent = infoDisplay;
if ( infoDisplay === 'always' ) {
openEvent = 'click';
infoWindow.open( map, marker );
}
marker.addListener( openEvent, function () {
infoWindow.open( map, marker );
if ( infoDisplay !== 'always' && !options.markerInfoMultiple ) {
this.infoWindows.forEach( function ( iw ) {
if ( iw !== infoWindow ) {
iw.close();
}
} );
}
}.bind( this ) );
if ( infoDisplay === 'mouseover' ) {
marker.addListener( 'mouseout', function () {
setTimeout( function () {
infoWindow.close();
}, 100 );
} );
}
}
if ( ++doneCount === markerBatchHead.length && markerBatchTail.length ) {
geocodeMarkerBatch( markerBatchTail.shift(), markerBatchTail );
}
}.bind( this ) );
}.bind( this ) );
}.bind( this );
geocodeMarkerBatch( markerBatches.shift(), markerBatches );
}
},
showDirections: function(directions, map) {
if ( directions ) {
if ( directions.waypoints && directions.waypoints.length ) {
directions.waypoints.map(
function (wypt) {
wypt.stopover = Boolean(wypt.stopover);
}
);
}
var directionsRenderer = new google.maps.DirectionsRenderer();
directionsRenderer.setMap(map);
var directionsService = new google.maps.DirectionsService();
directionsService.route({
origin: directions.origin,
destination: directions.destination,
travelMode: directions.travelMode.toUpperCase(),
avoidHighways: directions.avoidHighways,
avoidTolls: directions.avoidTolls,
waypoints: directions.waypoints,
optimizeWaypoints: directions.optimizeWaypoints,
},
function(result, status) {
if (status === google.maps.DirectionsStatus.OK) {
directionsRenderer.setOptions( { preserveViewport: directions.preserveViewport } );
directionsRenderer.setDirections(result);
}
});
}
},
initMaps: function() {
// Init any autocomplete fields first.
var $autoCompleteFields = $( '.sow-google-map-autocomplete' );
var autoCompleteInit = new $.Deferred();
if( $autoCompleteFields.length === 0 ) {
autoCompleteInit.resolve();
} else {
$autoCompleteFields.each(function (index, element) {
if ( typeof google.maps.places === 'undefined' ) {
autoCompleteInit.reject('Sorry, we couldn\'t load the "places" library due to another plugin, so the autocomplete feature is not available.');
return;
}
var autocomplete = new google.maps.places.Autocomplete(
element,
{types: ['address']}
);
var $mapField = $(element).siblings('.sow-google-map-canvas');
if ($mapField.length > 0) {
var options = $mapField.data('options');
options.autocomplete = autocomplete;
options.autocompleteElement = element;
this.getLocation(options.address).done(
function (location) {
this.showMap($mapField.get(0), location, options);
$mapField.data('initialized', true);
autoCompleteInit.resolve();
}.bind(this)
).fail(function () {
$mapField.append('<div><p><strong>' + soWidgetsGoogleMap.geocode.noResults + '</strong></p></div>');
autoCompleteInit.reject();
});
}
}.bind(this));
}
autoCompleteInit.always(function(){
$('.sow-google-map-canvas').each(function (index, element) {
var $$ = $(element);
if( $$.data( 'initialized' ) ) {
// Already initialized so continue to next element.
return true;
}
var options = $$.data( 'options' );
var address = options.address;
// If no address was specified, but we have markers, use the first marker as the map center.
if(!address) {
var markers = options.markerPositions;
if(markers && markers.length) {
address = markers[0].place;
}
}
this.getLocation( address ).done(
function ( location ) {
this.showMap( $$.get( 0 ), location, options );
$$.data( 'initialized' );
}.bind( this )
).fail( function () {
$$.append( '<div><p><strong>' + soWidgetsGoogleMap.geocode.noResults + '</strong></p></div>' );
} );
}.bind(this));
}.bind(this))
.fail(function(error){
console.log(error);
});
},
getGeocoder: function () {
if ( !this._geocoder ) {
this._geocoder = new google.maps.Geocoder();
}
return this._geocoder;
},
getLocation: function ( inputLocation ) {
var locationPromise = new $.Deferred();
var location = { address: inputLocation };
//check if address is actually a valid latlng
var latLng;
if ( inputLocation && inputLocation.indexOf( ',' ) > -1 ) {
var vals = inputLocation.split( ',' );
// A latlng value should be of the format 'lat,lng'
if ( vals && vals.length === 2 ) {
latLng = new google.maps.LatLng( vals[ 0 ], vals[ 1 ] );
// Let the API decide if we have a valid latlng
// This should fail if the input is an address containing a comma
// e.g. 123 Sesame Street, Middleburg, FL, United States
if ( !(isNaN( latLng.lat() ) || isNaN( latLng.lng() )) ) {
location = { location: { lat: latLng.lat(), lng: latLng.lng() } };
}
}
}
if ( location.hasOwnProperty( 'location' ) ) {
// We're using entered latlng coordinates directly
locationPromise.resolve( location.location );
} else if ( location.hasOwnProperty( 'address' ) ) {
// Either user entered an address, or fall back to defaults and use the geocoder.
if ( !location.address ) {
var rndIndx = parseInt( Math.random() * this.DEFAULT_LOCATIONS.length );
location.address = this.DEFAULT_LOCATIONS[ rndIndx ];
}
var onGeocodeResults = function ( results, status ) {
if ( status === google.maps.GeocoderStatus.OK ) {
locationPromise.resolve( results[ 0 ].geometry.location );
} else if ( status === google.maps.GeocoderStatus.OVER_QUERY_LIMIT ) {
//try again please
setTimeout( function () {
this.getGeocoder().geocode.call( this, location, onGeocodeResults );
}.bind( this ), 100 );
} else if ( status === google.maps.GeocoderStatus.ZERO_RESULTS ) {
locationPromise.reject( status );
}
}.bind( this );
this.getGeocoder().geocode( location, onGeocodeResults );
}
return locationPromise;
},
};
};
// Called by Google Maps API when it has loaded.
function soGoogleMapInitialize() {
new sowb.SiteOriginGoogleMap(jQuery).initMaps();
}
jQuery(function ($) {
sowb.setupGoogleMaps = function() {
var libraries = [];
var apiKey;
$('.sow-google-map-canvas').each(function(index, element) {
var $this = $(element);
var mapOptions = $this.data( 'options' );
if ( mapOptions) {
if( typeof mapOptions.libraries !== 'undefined' && mapOptions.libraries !== null ) {
libraries = libraries.concat(mapOptions.libraries);
}
if( !apiKey && mapOptions.apiKey ) {
apiKey = mapOptions.apiKey;
}
}
});
var mapsApiLoaded = typeof window.google !== 'undefined' && typeof window.google.maps !== 'undefined';
if ( mapsApiLoaded ) {
soGoogleMapInitialize();
} else {
var apiUrl = 'https://maps.googleapis.com/maps/api/js?callback=soGoogleMapInitialize';
if ( libraries && libraries.length ) {
apiUrl += '&libraries=' + libraries.join(',');
}
if ( apiKey ) {
apiUrl += '&key=' + apiKey;
}
// This allows us to "catch" Google Maps JavaScript API errors and do a bit of custom handling. In this case,
// we display a user-specified fallback image if there is one.
if ( window.console && window.console.error ) {
var errLog = window.console.error;
sowb.onLoadMapsApiError = function ( error ) {
var matchError = error.match( /^Google Maps API (error|warning): ([^\s]*)\s([^\s]*)(?:\s(.*))?/ );
if ( matchError && matchError.length && matchError[0] ) {
$( '.sow-google-map-canvas' ).each( function ( index, element ) {
var $this = $( element );
if ( $this.data( 'fallbackImage' ) ) {
var imgData = $this.data( 'fallbackImage' );
if ( imgData.hasOwnProperty( 'img' ) ) {
$this.append( imgData.img );
}
}
} );
}
errLog.apply( window.console, arguments );
};
window.console.error = sowb.onLoadMapsApiError;
}
$( 'body' ).append( '<script async type="text/javascript" src="' + apiUrl + '">' );
}
};
sowb.setupGoogleMaps();
$( sowb ).on( 'setup_widgets', sowb.setupGoogleMaps );
});
window.sowb = sowb;