Function setNodeHighlight

internal/driver/html/common.js:526–550

(n, set)

  // Change highlighting of node (returns true if node was found).
  function setNodeHighlight(n, set) {
    if (options && options.hiliter) return options.hiliter(n, set);

    const elem = document.getElementById('node' + n);
    if (!elem) return false;

    // Handle table row highlighting.
    if (elem.nodeName == 'TR') {
      elem.classList.toggle('hilite', set);
      return true;
    }

    // Handle svg element highlighting.
    const p = findPolygon(elem);
    if (p != null) {
      if (set) {
        origFill.set(p, p.style.fill);
        p.style.fill = '#ccccff';
      } else if (origFill.has(p)) {
        p.style.fill = origFill.get(p);
      }
    }

    return true;
  }

  function findPolygon(elem) {
    if (elem.localName == 'polygon') return elem;