MediaWiki:Common.js

// -------------------------
// Infobox cleanup
// -------------------------
$(document).ready(function() {
    $('.infoboxTable th').each(function() {
        if ($(this).text().trim() === "Image") {
            $(this).text("");
        }
    });
});

// -------------------------
// Remove unwanted Introduction headers
// -------------------------
$(document).ready(function() {
    $('h2').each(function() {
        if ($(this).text().trim() === "Introduction") {
            $(this).remove();
        }
    });
});

// -------------------------
// Remove first empty paragraph
// -------------------------
$(document).ready(function() {
    $('p').first().each(function() {
        if ($(this).html().trim() === "<br>") {
            $(this).remove();
        }
    });
});


mw.loader.load('https://cdn.jsdelivr.net/gh/openlayers/openlayers.github.io@main/dist/en/v7.0.0/legacy/ol.js');
mw.loader.load('/maps/elemara/elemara-map.js');

mw.loader.using([], function () {
  $(function () {
    var container = document.getElementById("pixel-area-calculator");

    if (!container) {
      return;
    }

    container.innerHTML =
      '<div class="pixel-area-tool">' +
        '<h3>Pixel to Square Miles Calculator</h3>' +

        '<label>Width in pixels:' +
          '<input id="pixel-width" type="number" min="0" step="any" placeholder="Width">' +
        '</label>' +

        '<label>Height in pixels:' +
          '<input id="pixel-height" type="number" min="0" step="any" placeholder="Height">' +
        '</label>' +

        '<button id="pixel-area-button" type="button">Calculate</button>' +

        '<div id="pixel-area-result"></div>' +
      '</div>';

    document.getElementById("pixel-area-button").addEventListener("click", function () {
      var widthPixels = parseFloat(document.getElementById("pixel-width").value);
      var heightPixels = parseFloat(document.getElementById("pixel-height").value);
      var result = document.getElementById("pixel-area-result");

      if (isNaN(widthPixels) || isNaN(heightPixels)) {
        result.textContent = "Please enter both pixel values.";
        return;
      }

      var widthMiles = (widthPixels / 1000) * 50;
      var heightMiles = (heightPixels / 1000) * 50;
      var squareMiles = widthMiles * heightMiles;

      result.innerHTML =
        "<strong>" + widthMiles.toLocaleString(undefined, { maximumFractionDigits: 2 }) + " miles</strong>" +
        " × " +
        "<strong>" + heightMiles.toLocaleString(undefined, { maximumFractionDigits: 2 }) + " miles</strong>" +
        " = " +
        "<strong>" + squareMiles.toLocaleString(undefined, { maximumFractionDigits: 2 }) + " mi²</strong>";
    });
  });
});