The functionality of Google Maps fails to operate within an Angular directive

Trying to implement the GoogleMapsAPI but facing issues with displaying the map in the directory template. Check out the following markup and code snippet:

<gmap-locator></gmap-locator>

.

app.directive('gmapLocator', function () {
    var link = function (scope, element, attrs) {
                var map, mapOptions, markers;
                var lat = scope.mapParameters.initialSettings.Lat;
                var lng = scope.mapParameters.initialSettings.Lng;
                mapOptions = {
                    mapTypeId : google.maps.MapTypeId.ROADMAP,
                    center: new google.maps.LatLng(lat, lng),
                    zoom: scope.mapParameters.initialSettings.zoom
                };


                function initMap() {
                    if (map === void 0) {
                        map = new google.maps.Map(element[0], mapOptions);

                    }
                }
                initMap();
            }
            return {
                restrict: 'EA',
                scope: {
                    mapParameters: '='
                },
                template: "<div id='gomap' style='height: 400px;width:300px'></div>",
                controller: controller,
                link: link
            }
            return {
                restrict: 'EA',
                template: '<div id="gomap" style="width: 450px;height:400px;"></div>',
                link: link
            };
        });

Encountering an issue where the Google Maps library fails to detect the target div and display the map.

Answer №1

the reason for this issue is that the <div id="gomap".. element is being nested within the directive element

<gmap-locator map-parameters="mapParameters"></gmap-locator>
Therefore, the GoogleMaps initialization code in the initmap function needs to be modified to

map = new google.maps.Map(element[0].children[0], mapOptions);

alternatively, you can simply use document.getElementById('gomap') instead of referencing the element using element[0].

another approach is to include replace: true in the directive return statement

return {
                restrict: 'EA',
                replace: true,
                ....

However, AngularJS seems to have deprecated the replace option.

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