experiments/api/map-feature/index.html at f727ae56df85c9f7a31260c7a4d61eec4b74387f · Maps4HTML/experiments · GitHub

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<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <meta name="color-scheme" content="dark light">
    <title>&lt;map-feature&gt; API</title>
    <script type="module" src="../../dist/mapml-viewer.js"></script>
    <style>
      body {
        font-family: 'system-ui', sans-serif;
        max-width: 50rem;
        margin: 0 auto;
        padding: 0 1rem;
        overflow-wrap: break-word;
      }
      mapml-viewer {
        width: 100%;
        min-height: 50vh;
      }
      textarea {
          width: 100%;
          min-height: 35vh;
          margin-top: 10px;
      }
      @media (prefers-color-scheme: dark) {
        .user-preference-message {
          display: none;
        }
      }
    </style>
    <script>
      function addMan() {
        let map = document.querySelector('mapml-viewer');
        let man = document.querySelector('#hatman').content.firstElementChild.cloneNode(true);
        let layer = document.querySelector('#empty-layer').content.firstElementChild.cloneNode(true);
        layer.label = 'Two Hat Man';
        layer.checked = 'checked';
        map.appendChild(layer);
        layer.appendChild(man);
        // this step should not be necessary
        layer.remove();
        map.appendChild(layer);
        toggleDisabled();
      }
      function _doMan(action) {
        document.querySelector('#txt').textContent = this[action+"Man"].toString();
        this[action+"Man"]();
      }
      function toggleDisabled() {
        if (document.querySelector('#add').disabled) {
          document.querySelector('#add').disabled = false;
          document.querySelector('#focus').disabled = true;
          document.querySelector('#click').disabled = true;
          document.querySelector('#blur').disabled = true;
          document.querySelector('#zoom').disabled = true;
          document.querySelector('#replace').disabled = true;
          document.querySelector('#prevent').disabled = true;
          document.querySelector('#remove').disabled = true;
        } else {
          document.querySelector('#add').disabled = true;
          document.querySelector('#focus').disabled = false;
          document.querySelector('#click').disabled = false;
          document.querySelector('#blur').disabled = false;
          document.querySelector('#zoom').disabled = false;
          document.querySelector('#replace').disabled = false;
          document.querySelector('#prevent').disabled = false;
          document.querySelector('#remove').disabled = false;
        }
      }
      function focusMan() {
        // dispatch focus event at map-feature
        document.querySelector('map-feature').focus();
      }
      function blurMan() {
        // focus feature and then blur after 1 second.
        document.querySelector('map-feature').focus();
        setTimeout(() => {
          // dispatch blur event at map-feature
          document.querySelector('map-feature').blur();
        }, "1000");
      }
      function clickMan() {
        // dispatch click event at map-feature
        // note that map-feature is not actually displayed, a <g> element is,
        // so the click method on map-feature should target a click event
        // to the <g> element first
        document.querySelector('map-feature').click();
      }
      function addCustomClickHandlerToMan() {
        let man = document.querySelector('map-feature');
        // onclick works if you programmatically dispatch the click
        // event, but if you click the feature
        // with your pointer you still get the default popup
        // and the alert does not show
        man.onclick = function () {
          alert('Feature clicked');
        };
      }
      function zoomToMan() {
        document.querySelector('map-feature').zoomTo();
      }
      function removeMan() {
        document.querySelector('map-feature').remove();
        toggleDisabled();
      }
      function addStopPropagationMan() {
        let man = document.querySelector('map-feature');
        man.addEventListener("click", (e) => {
          // Stops Default click action
          e.originalEvent.stopPropagation();
          // handle the click button yourself here
          // ...
        });
      }
    </script>
    <template id="projection">
      <map-meta name="projection" content="OSMTILE"></map-meta>
    </template>
    <template id="empty-layer">
      <layer-  label="Empty" checked>
        <map-meta name="projection" content="OSMTILE"></map-meta>
      </layer->
    </template>

    <template id="hatman">
        <map-feature id="twohats" zoom="15" class="twohats">
          <map-featurecaption>The Man With Two Hats</map-featurecaption>
          <map-properties>
            <table>
              <tr>
                <th>image</th>
                <td><a href="https://www.veterans.gc.ca/eng/remembrance/memorials/national-inventory-canadian-memorials/details/9304">
                  <img src="https://www.veterans.gc.ca/images/remembrance/memorials/national-inventory-canadian-memorials/mem/35059-173a.jpg" width="60" height="60"/>
                </a>
                </td>
              </tr>
            </table>
          </map-properties>
          <map-geometry cs="gcrs">
            <map-point>
              <map-coordinates>-75.705278 45.397778</map-coordinates>
            </map-point>
          </map-geometry>
        </map-feature>
    </template>
  </head>
  <body>
    <p>
    This document is to experiment with the event handling methods of the
    <a href="https://maps4html.org/web-map-doc/docs/api/map-feature-api/">HTMLFeatureElement API</a>.
    </p>


    <mapml-viewer projection="OSMTILE" zoom="1" lat="0" lon="0" controls>
      <layer- label="CBMT" src="https://maps4html.org/experiments/refactoring-temporary/osm.mapml" checked></layer->
<!--      <layer- id="target-layer" label="Empty" checked>
        <map-meta name="projection" content="OSMTILE"></map-meta>
      </layer->-->
    </mapml-viewer>
  <button id="add" onclick="_doMan('add')">Add feature</button>
    <button id="focus" disabled onclick="_doMan('focus')">Focus feature</button>
    <button id="blur" disabled  onclick="_doMan('blur')">Focus & Blur feature</button>
    <button id="click" disabled  onclick="_doMan('click')">Click feature</button>
    <button id="zoom" disabled  onclick="_doMan('zoomTo')">Zoom to feature</button>
    <button id="replace" disabled  onclick="_doMan('addCustomClickHandlerTo')">Replace default click handler</button>
    <button id="prevent" disabled  onclick="_doMan('addStopPropagation')">Stop default click action</button>
    <button id="remove" disabled onclick="_doMan('remove')">Remove feature</button>
    <textarea id="txt"></textarea>
  </body>
</html>