Google 地图更改信息窗口的内容

Question

我的谷歌地图中有一堆带有信息窗口的标记。 最初，我将内容设置为带有

<input type="text" ...>

和提交按钮的内容。在提交按钮的

onclick="return submitForm();"

上，我调用一个函数，该函数应该更改它所做的信息窗口的内容。但是当我关闭信息窗口并再次打开它时，文本被重置。我怎样才能让它留下来？

infowindow.setContent("This HTML content is being reset after reopening the infowindow");

infowindow.open(map, marker);

非常感谢！

_

编辑：

初始化：

function addCoordinate(lat, lon, text){
    var marker = new google.maps.Marker({
        position: (new google.maps.LatLng(lat, lon)),
        title: '#' + path.getLength(),
        map: map,
        icon: image3
    });

    google.maps.event.addListener(marker, 'click', function() {
        infowindow.setContent('<input type="text" id="wpname" value="'+ name +'" style="width:200px"><input type="hidden" id="wplat" value="'+ lat +'"><input type="hidden" id="wplon" value="'+ lon +'"><input type="submit" value="OK" onclick="return submitForm();"><br>'+ text +'<br><a href="javascript:removeCoordinate('+lat+', '+lon+');">Remove</a>');
        infowindow.open(marker.get('map'), marker);
    });
}

要调用的函数：

function submitForm() {
    infowindow.setContent("This HTML content is being reset after reopening the infowindow");
    infowindow.open(map, marker);
}

每当我单击提交按钮时，内容应该从表单更改为“此 HTML 内容正在重置 [...]”。当我关闭信息窗口并再次打开它时，仍然应该有消息“此 HTML 内容正在重置 [...]”。

现在正在使用提交按钮将其设置回表单。

Answer 1

您必须以与单击的标记相关的方式存储内容。最好的方法是将其直接存储为标记的属性（并在

submitForm

中更新此标记属性）

function initialize() {

  var goo = google.maps,
    map = new goo.Map(document.getElementById("map-canvas"), {
      center: new goo.LatLng(-34.397, 150.644),
      zoom: 8
    }),

    infowindow = new google.maps.InfoWindow;

  function addCoordinate(lat, lon, text) {
    var node = document.createElement('div'),
      marker = new goo.Marker({
        position: (new goo.LatLng(lat, lon)),

        map: map,
        content: node
      });
    node.innerHTML =
      '<input type="text" id="wpname" value="' + name + '" style="width:200px">' +
      '<input type="hidden" id="wplat" value="' + lat + '">' +
      '<input type="hidden" id="wplon" value="' + lon + '">' +
      '<input type="submit" value="OK" ><br>' + text +
      '<br><a href="#">Remove</a>';

    function submitForm() {
      marker.set('content', 'This marker has been stored');
      goo.event.trigger(marker, 'click')
    }

    function removeCoordinate() {
      marker.setMap(null);
    }

    goo.event.addDomListener(node.querySelector('input[type=submit]'), 'click', submitForm)
    goo.event.addDomListener(node.querySelector('a'), 'click', removeCoordinate)


    goo.event.addListener(marker, 'click', function() {
      infowindow.setContent(this.get('content'));
      infowindow.open(marker.get('map'), marker);
    });
  }
  goo.event.addListener(map, 'click', function(e) {
    addCoordinate(e.latLng.lat(), e.latLng.lng(), 'some text');
  });

  window['alert']('click on the map to add a marker')

}
google.maps.event.addDomListener(window, 'load', initialize);

html,
body,
#map-canvas {
  height: 100%;
  margin: 0;
  padding: 0
}

<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?v=3"></script>

<div id="map-canvas"></div>

Answer 2

类似这样

var g_lat = 44.8;
var g_lon = 20.5;

var mapCenter = new google.maps.LatLng(g_lat, g_lon);
var myOptions = {
    zoom: 13,
    center: mapCenter,
    mapTypeId: google.maps.MapTypeId.ROADMAP
};

var map = new google.maps.Map(document.getElementById("map-station"), myOptions);

stationData.forEach(function(station) {
    var stationLatLng = new google.maps.LatLng(parseFloat(station.gpsx), parseFloat(station.gpsy));
    var marker = new google.maps.Marker({
        position: stationLatLng,
        map: map,
        title: station.station_name
    });
    
    var infoWindow = new google.maps.InfoWindow({
        content: `<strong>${station.station_name}</strong>`
    });

    marker.addListener("click", function() {
        infoWindow.open(map, marker);
    });
});