Function toggleSvgSelect

internal/driver/html/common.js:487–505

(elem)

  }

  function toggleSvgSelect(elem) {
    // Walk up to immediate child of graph0
    while (elem != null && elem.parentElement != graph0) {
      elem = elem.parentElement;
    }
    if (!elem) return;

    // Disable regexp mode.
    regexpActive = false;

    const n = nodeId(elem);
    if (n < 0) return;
    if (selected.has(n)) {
      unselect(n);
    } else {
      select(n);
    }
    updateButtons();
  }

  function unselect(n) {
    if (setNodeHighlight(n, false)) selected.delete(n);