Static Attribution

<!--
  示例：固定版权标注
  要点：source 的 attributions 会汇总到 Attribution 控件，也可折叠成一行
  依赖：OpenLayers 10.3.1 · jsDelivr CDN（底图 OSM，无 Key）
-->
<!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>固定版权标注</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;color:#16181d}
  .bar{flex:0 0 auto;padding:8px 12px;background:#f6f7f9;border-bottom:1px solid #e3e6ea;
       display:flex;gap:14px;align-items:center;font-size:12px;color:#58606e;flex-wrap:wrap}
  .bar label{display:flex;gap:5px;align-items:center;cursor:pointer}
  .bar b{color:#16181d;font-weight:600}
  #map{position:absolute;inset:0;background:#eef0f3}
  .fixed-attr{position:absolute;right:8px;bottom:8px;background:rgba(255,255,255,.88);
              border:1px solid #e3e6ea;border-radius:4px;padding:2px 8px;font-size:11px;color:#58606e}
  .wrap{position:relative;flex:1 1 auto;min-height:0}
</style>
</head>
<body>
<div class="bar">
  <label><input type="checkbox" id="collapsible" checked> 可折叠</label>
  <span>来源数 <b id="n">2</b></span>
  <span>来源说明会叠加显示在右下角</span>
</div>
<div class="wrap">
  <div id="map"></div>
  <span class="fixed-attr">示例固定标注 · 仅用于演示</span>
</div>
<script src="https://cdn.jsdelivr.net/npm/ol@10.3.1/dist/ol.js"></script>
<script>
(function () {
  'use strict';
  if (!window.ol) {
    document.getElementById('map').textContent = 'OpenLayers 加载失败，请检查 cdn.jsdelivr.net 是否可访问';
    return;
  }

  var osm = new ol.source.XYZ({url: 'https://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer/tile/{z}/{y}/{x}', 
    attributions: 'Tiles © Esri'
  });

  /* 第二个源专门带自己的版权文字，观察控件里的合并结果 */
  var overlay = new ol.source.Vector({
    attributions: '示例站点数据 · 本站构造',
    features: [
      new ol.Feature(new ol.geom.Point(ol.proj.fromLonLat([116.391, 39.907]))),
      new ol.Feature(new ol.geom.Point(ol.proj.fromLonLat([116.455, 39.912])))
    ]
  });

  var map = new ol.Map({
    target: 'map',
    layers: [
      new ol.layer.Tile({ source: osm }),
      new ol.layer.Vector({
        source: overlay,
        style: new ol.style.Style({
          image: new ol.style.Circle({
            radius: 6,
            fill: new ol.style.Fill({ color: '#1f5fd0' }),
            stroke: new ol.style.Stroke({ color: '#fff', width: 2 })
          })
        })
      })
    ],
    view: new ol.View({ center: ol.proj.fromLonLat([116.40, 39.92]), zoom: 12 }),
    controls: ol.control.defaults.defaults({
      attribution: false,
      rotate: false
    })
  });

  var attribution = new ol.control.Attribution({
    collapsible: true
  });
  map.addControl(attribution);

  document.getElementById('collapsible').addEventListener('change', function () {
    attribution.setCollapsible(this.checked);
  });
})();
</script>
</body>
</html>