我对Leaflet地图的点击事件有疑问。

我将图层控件从地图元素中移出,如下所示:

document.getElementById('outside-controls').appendChild(ctrl.getContainer());


之后,每次更改图层控件设置时,我都开始错过点击事件。

这是工作示例代码:

var dom_documentClicks = document.getElementById('document-clicks'),
    dom_mapClicks = document.getElementById('map-clicks'),
    count_documentClicks = 0,
    count_mapClicks = 0;

var osmUrl = 'http://{s}.tile.osm.org/{z}/{x}/{y}.png',
    osmAttrib = '&copy; <a href="http://openstreetmap.org/copyright">OpenStreetMap</a> contributors',
    osm = L.tileLayer(osmUrl, {
      maxZoom: 18,
      attribution: osmAttrib
    }),
    poly = L.polygon([]),
    ctrl = L.control.layers({}, {'Polygon Layer': poly}, {collapsed: false});

// initialize the map on the "map" div with a given center and zoom
var map = L.map('map', {layers: [osm, poly]}).setView([61.497752, 23.760954], 12);

ctrl.addTo(map);

// This seems to be the reason why click-event is not emitted.
document.getElementById('outside-controls').appendChild(ctrl.getContainer());


function onDocumentClick(e) {
  count_documentClicks++;
  dom_documentClicks.innerHTML = count_documentClicks;
}

function onMapClick(e) {
  count_mapClicks++;
  dom_mapClicks.innerHTML = count_mapClicks;
}

map.on('click', onMapClick);
document.addEventListener('click', onDocumentClick);


并链接到jsFiddle:http://jsfiddle.net/LnzN2/135/

有谁知道摆脱这个问题的方法(错误?)?

最佳答案

似乎ctrl.getContainer()返回的div消耗了map中的下一个click-event。

更改此内容时:

ctrl.getContainer()


对此:

ctrl.getContainer().childNodes[0]


有用!

09-30 16:06