map-styles/index.html at staging · OpenHistoricalMap/map-styles · GitHub

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<html>
<head>
  <script src="./node_modules/maplibre-gl/dist/maplibre-gl.js"></script>
  <link href="./node_modules/maplibre-gl/dist/maplibre-gl.css" rel="stylesheet" />
  <link href="./index.css" rel="stylesheet" />
</head>
<body>
<div id="map"></div>
<div id="popup">
  <div><strong>Style:</strong> <span id="s-name"></span></div>
  <div><strong>Style URL:</strong> <span id="s-url"></span></div>
  <hr/>
  <div id="layers"></div>
  <button id="close" class="close">Close</button>
</div>

<script type="module">
  import StyleFlipperControl from "./node_modules/maplibre-gl-style-flipper/index.js";
  const mapStyles = {
    "historical": {
      code: "historical",
      image: "./img/historical.png",
      url: "./historical/historical.json"
    },
    "japanese_scroll": {
      code: "japanese_scroll",
      image: "./img/japanese_scroll.png",
      url: "./japanese_scroll/japanese_scroll.json"
    },
    "railway": {
      code: "railway",
      image: "./img/railway.png",
      url: "./railway/railway.json"
    },
    "woodblock": {
      code: "woodblock",
      image: "./img/woodblock.png",
      url: "./woodblock/woodblock.json"
    },
  };

  let map = new maplibregl.Map({
    container: 'map',
    style: mapStyles["historical"].url,
    center: [-74.033, 40.6259],
    zoom: 11.73,
    hash: true
  })

  // Create an instance of StyleFlipperControl
  const flipper = new StyleFlipperControl(mapStyles);

  // Set the initial style code
  flipper.setCurrentStyleCode("historical");

  // Add the control to the map
  map.addControl(flipper, "bottom-right");

  const
    p = document.getElementById("popup"),
    sName = document.getElementById("s-name"),
    sUrl = document.getElementById("s-url"),
    layersEl = document.getElementById("layers"),
    closeBtn = document.getElementById("close")
  ;

  map.on("load", () => {
    map.on("click", (e) => {
      e.originalEvent.stopPropagation();
      const cur = flipper.currentStyleCode || "historical";
      sName.textContent = cur;
      sUrl.textContent = mapStyles[cur].url || "";

      layersEl.innerHTML = "";
      const tol = 2;
      const bbox = [[e.point.x - tol, e.point.y - tol], [e.point.x + tol, e.point.y + tol]];
      const features = map.queryRenderedFeatures(bbox);

      if (!features || features.length === 0) {
        layersEl.textContent = "No rendered features at this point.";
      } else {
        const byLayer = {};
        features.forEach(f => {
          const id = (f.layer && f.layer.id) ? f.layer.id : "(no-layer)";
          (byLayer[id] || (byLayer[id] = [])).push(f);
        });
        for (const lid of Object.keys(byLayer)) {
          const wrapper = document.createElement("div");
          const title = document.createElement("div");
          title.className = "layer-title";

          const left = document.createElement("div");
          left.className = "layer-left";
          const nameSpan = document.createElement("span");
          nameSpan.textContent = `${lid} — ${byLayer[lid].length} feature(s)`;
          left.appendChild(nameSpan);

          const copyBtn = document.createElement("button");
          copyBtn.className = "copy-btn";
          copyBtn.type = "button";
          copyBtn.innerText = "📋";
          copyBtn.title = "Copy layer id";
          copyBtn.dataset.layer = lid;

          // copy handler
          copyBtn.addEventListener("click", async (ev) => {
            ev.stopPropagation(); // avoid closing popup
            try {
              await navigator.clipboard.writeText(lid);
              const prev = copyBtn.innerText;
              copyBtn.innerText = "Copied!";
              setTimeout(() => copyBtn.innerText = prev, 1200);
            } catch (err) {
              copyBtn.innerText = "Err";
              setTimeout(() => copyBtn.innerText = "📋", 1200);
            }
          });

          left.appendChild(copyBtn);
          title.appendChild(left);

          // append features props (only properties) below
          const propsDiv = document.createElement("div");
          byLayer[lid].forEach((feat, i) => {
            const pre = document.createElement("pre");
            pre.textContent = `feature ${i} id:${feat.id ?? "n/a"}\n` + JSON.stringify(feat.properties || {}, null, 2);
            propsDiv.appendChild(pre);
          });

          title.style.marginBottom = "6px";
          wrapper.appendChild(title);
          wrapper.appendChild(propsDiv);
          layersEl.appendChild(wrapper);
        }
      }

      p.style.left = (e.originalEvent.clientX + 10) + "px";
      p.style.top = (e.originalEvent.clientY + 10) + "px";
      p.style.display = "block";
    });
  });

  // close handling: ignore clicks inside popup
  document.addEventListener("click", (ev) => {
    if (!p.contains(ev.target)) p.style.display = "none";
  });
  closeBtn.addEventListener("click", () => p.style.display = "none");

</script>

<script id="__bs_script__">//<![CDATA[
  (function() {
    try {
      var script = document.createElement('script');
      if ('async') {
        script.async = true;
      }
      script.src = 'http://HOST:3001/browser-sync/browser-sync-client.js?v=3.0.4'.replace("HOST", location.hostname);
      if (document.body) {
        document.body.appendChild(script);
      } else if (document.head) {
        document.head.appendChild(script);
      }
    } catch (e) {
      console.error("Browsersync: could not append script tag", e);
    }
  })()
//]]></script>

</body>
</html>