GMap - Adding Markers This examples demonstrates how to add a marker and keep client side representation in sync with the server side model. Even though you use Google Maps as a JSF component you can still take advantage of the full Google Maps API.
<p:growl id="messages" showDetail="true" />

<p:gmap id="gmap" center="36.890257,30.707417" zoom="13" type="HYBRID" style="width:100%;height:400px"
    model="#{addMarkersView.emptyModel}" onPointClick="handlePointClick(event);" widgetVar="map" />

<p:dialog widgetVar="dlg" showEffect="fade">
    <h:form prependId="false">
        <h:panelGrid columns="2">
            <h:outputLabel for="title" value="Title:" />
            <p:inputText id="title" value="#{addMarkersView.title}" />

            <f:facet name="footer">
                <p:commandButton value="Add" actionListener="#{addMarkersView.addMarker}" update=":messages" oncomplete="markerAddComplete()" />
                <p:commandButton value="Cancel" onclick="return cancel()" />
            </f:facet>
        </h:panelGrid>

        <h:inputHidden id="lat" value="#{addMarkersView.lat}" />
        <h:inputHidden id="lng" value="#{addMarkersView.lng}" />
    </h:form>
</p:dialog>

<script type="text/javascript">
    var currentMarker = null;

    function handlePointClick(event) {
        if(currentMarker === null) {
            document.getElementById('lat').value = event.latLng.lat();
            document.getElementById('lng').value = event.latLng.lng();

            currentMarker = new google.maps.Marker({
                position:new google.maps.LatLng(event.latLng.lat(), event.latLng.lng())
            });

            PF('map').addOverlay(currentMarker);

            PF('dlg').show();
        }	
    }

    function markerAddComplete() {
        var title = document.getElementById('title');
        currentMarker.setTitle(title.value);
        title.value = "";

        currentMarker = null;
        PF('dlg').hide();
    }

    function cancel() {
        PF('dlg').hide();
        currentMarker.setMap(null);
        currentMarker = null;

        return false;
    }
</script>
                
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