Teleport

<!--
  示例：OpenLayers 地图跨容器迁移
  要点：一个 Map 实例通过 setTarget 在两个 DOM 容器间切换，视图与图层状态完整保留
  依赖：OpenLayers 10.3.1 · jsDelivr CDN
-->
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta name="robots" content="noindex,follow">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>地图跨容器迁移</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ol@10.3.1/ol.css">
<style>
  html,body{height:100%;margin:0}
  body{display:flex;flex-direction:column;overflow:hidden;
       font:13px/1.6 -apple-system,"Segoe UI","PingFang SC",sans-serif}
  .bar{flex:0 0 auto;padding:8px 12px;background:#f6f7f9;border-bottom:1px solid #e3e6ea;
       display:flex;gap:10px;align-items:center;flex-wrap:wrap;font-size:12px;color:#58606e}
  .bar label{display:flex;gap:5px;align-items:center;cursor:pointer}
  .bar select,.bar input[type=range]{font-size:12px}
  .bar .val{font-family:ui-monospace,Consolas,monospace;color:#1f5fd0;min-width:44px}
  .bar .sep{width:1px;height:16px;background:#d8dce2}
  #map{flex:1 1 auto;min-height:0;background:#eef0f3}
  .maps{flex:1 1 auto;min-height:0;display:grid;grid-template-columns:1fr 1fr;gap:2px;background:#ccd3db}
  .map{min-height:0;background:#eef0f3}
  .map.is-active{box-shadow:inset 0 0 0 2px #1f5fd0}
</style>
</head>
<body>
<div class="bar">
  <button id="teleport" type="button">迁移到右侧容器</button>
  <span class="sep"></span>
  <span id="info">当前：容器 A</span>
</div>
<div class="maps">
  <div id="map1" class="map is-active"></div>
  <div id="map2" class="map"></div>
</div>
<script src="https://cdn.jsdelivr.net/npm/ol@10.3.1/dist/ol.js"></script>
<script>
(function () {
  'use strict';

  if (typeof ol === 'undefined') {
    document.getElementById('map').textContent = 'OpenLayers 加载失败，请检查能否访问 cdn.jsdelivr.net';
    return;
  }


  var map = new ol.Map({
    layers: [new ol.layer.Tile({source: new ol.source.XYZ({url: 'https://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer/tile/{z}/{y}/{x}', attributions: 'Tiles © Esri'})})],
    view: new ol.View({
      center: ol.proj.fromLonLat([116.391, 39.907]),
      zoom: 11
    })
  });

  map.setTarget('map1');

  var button = document.getElementById('teleport');
  var info = document.getElementById('info');
  var map1 = document.getElementById('map1');
  var map2 = document.getElementById('map2');

  button.addEventListener('click', function () {
    var onFirst = map.getTarget() === 'map1';
    map.setTarget(onFirst ? 'map2' : 'map1');
    map1.classList.toggle('is-active', !onFirst);
    map2.classList.toggle('is-active', onFirst);
    info.textContent = onFirst ? '当前：容器 B' : '当前：容器 A';
    button.textContent = onFirst ? '迁移到左侧容器' : '迁移到右侧容器';
    map.updateSize();
  });

})();
</script>
</body>
</html>