Full Screen Source

<!--
  说明：全屏指定元素
  核心逻辑：FullScreen 的 source 指向整个工作区元素，工具栏与地图一起全屏
  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>全屏指定元素</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}
  #stage{display:flex;flex-direction:column;height:100%;background:#fff}
  #stage:fullscreen{height:100%}
  .bar{flex:0 0 auto;padding:8px 12px;background:#f6f7f9;border-bottom:1px solid #e3e6ea;
       display:flex;gap:12px;align-items:center;font-size:12px;color:#58606e}
  #map{flex:1 1 auto;min-height:0;background:#eef0f3}
  .ol-full-screen button{font-size:12px}
</style>
</head>
<body>
<div id="stage">
  <div class="bar">
    <span>全屏范围：整个工作区（工具栏 + 地图）</span>
    <span id="info">—</span>
  </div>
  <div id="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').innerHTML =
      '<div style="padding:20px;color:#b42318">OpenLayers 加载失败，请检查能否访问 cdn.jsdelivr.net</div>';
    return;
  }

  var fromLonLat = ol.proj.fromLonLat;

  var fullScreen = new ol.control.FullScreen({
    source: 'stage',
    label: '全屏',
    labelActive: '退出',
    tipLabel: '全屏查看地图'
  });

  var map = new ol.Map({
    target: '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: fromLonLat([116.391, 39.907]), zoom: 10, minZoom: 2, maxZoom: 19 }),
    controls: ol.control.defaults.defaults({ attribution: false, rotate: false }).extend([fullScreen])
  });

  var info = document.getElementById('info');

  fullScreen.on('enterfullscreen', function () {
    info.textContent = '已进入全屏';
  });
  fullScreen.on('leavefullscreen', function () {
    info.textContent = '已退出全屏';
  });

  info.textContent = '点右上角全屏按钮';
})();
</script>
</body>
</html>