Function getCheckboxState

InteractiveHtmlBom/web/ibom.js:169–187

(checkbox, references)

}

function getCheckboxState(checkbox, references) {
  var storedRefsSet = getStoredCheckboxRefs(checkbox);
  var currentRefsSet = new Set(references.map(r => r[1]));
  // Get difference of current - stored
  var difference = new Set(currentRefsSet);
  for (ref of storedRefsSet) {
    difference.delete(ref);
  }
  if (difference.size == 0) {
    // All the current refs are stored
    return "checked";
  } else if (difference.size == currentRefsSet.size) {
    // None of the current refs are stored
    return "unchecked";
  } else {
    // Some of the refs are stored
    return "indeterminate";
  }
}

function setBomCheckboxState(checkbox, element, references) {
  var state = getCheckboxState(checkbox, references);