将弹出窗口移出屏幕会意外关闭弹出窗口（带有 leaflet.markercluster 的传单）

Question

我不明白为什么，但每次我打开一个弹出窗口并且弹出窗口比屏幕大或者我将其锚点移出屏幕时，弹出窗口都会关闭。我现在测试了它，当 leaflet.markercluster 正在播放时就会发生这种情况。运行这个片段看看我的意思

和leaflet.markercluster

弹出窗口打开时关闭

var map = L.map('map').setView([38, -8], 7)

L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png').addTo(map);

var markers = L.markerClusterGroup()

for (let i=0; i<100; i++) {

  let veryLongHtml = "popup " + i + "<br>"
  for (let j=0; j<1000; j++) {
    veryLongHtml+='a '
  }

  const popup = L.popup({
    closeOnClick: false,
    autoClose: false
  }).setContent(veryLongHtml);
  
  const marker = L.marker([
    getRandom(37, 39), 
    getRandom(-9.5, -6.5)
  ]).bindPopup(popup);
  
  markers.addLayer(marker)
}
map.addLayer(markers);

function getRandom(min, max) {
  return Math.random() * (max - min) + min;
}

#map {height: 200px}

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.7.1/leaflet.css" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet.markercluster/1.4.1/MarkerCluster.css" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet.markercluster/1.5.0/MarkerCluster.Default.min.css" />

<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.7.1/leaflet.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet.markercluster/1.4.1/leaflet.markercluster.js"></script>

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

没有leaflet.markercluster

这里运行正常，检查：

var map = L.map('map').setView([38, -8], 7)

L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png').addTo(map);

for (let i=0; i<10; i++) {

  let veryLongHtml = "popup " + i + "<br>"
  for (let j=0; j<1000; j++) {
    veryLongHtml+='a '
  }

  const popup = L.popup({
    closeOnClick: false,
    autoClose: false
  }).setContent(veryLongHtml);
  
  const marker = L.marker([
    getRandom(37, 39), 
    getRandom(-9.5, -6.5)
  ]).addTo(map).bindPopup(popup);
  
}

function getRandom(min, max) {
  return Math.random() * (max - min) + min;
}

#map {height: 200px}

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.7.1/leaflet.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.7.1/leaflet.js"></script>
<div id="map"></div>

Answer 1

我怀疑这是由于 removeOutsideVisibleBounds option（默认启用）删除了远离视口的所有标记和簇以提高性能。

您可以尝试禁用此选项：

var markers = L.markerClusterGroup({
  removeOutsideVisibleBounds: false
})

也许通过防止删除仍然打开的弹出窗口（并且启用该选项）的标记来改进 Leaflet.markercluster 库可能会很有趣，将在库存储库中讨论...

将弹出窗口移出屏幕会意外关闭弹出窗口（带有 leaflet.markercluster 的传单）

Moving popup off screen closes popup unexpectedly (leaflet with leaflet.markercluster)

leaflet

leaflet.markercluster

和leaflet.markercluster

没有leaflet.markercluster