Function updateOptions

code/composition/public/app.js:14650–14690

(node, multiple, propValue, setDefaultSelected)

}

function updateOptions(node, multiple, propValue, setDefaultSelected) {
  var options = node.options;

  if (multiple) {
    var selectedValues = propValue;
    var selectedValue = {};
    for (var i = 0; i < selectedValues.length; i++) {
      // Prefix to avoid chaos with special keys.
      selectedValue['$' + selectedValues[i]] = true;
    }
    for (var _i = 0; _i < options.length; _i++) {
      var selected = selectedValue.hasOwnProperty('$' + options[_i].value);
      if (options[_i].selected !== selected) {
        options[_i].selected = selected;
      }
      if (selected && setDefaultSelected) {
        options[_i].defaultSelected = true;
      }
    }
  } else {
    // Do not set `select.value` as exact behavior isn't consistent across all
    // browsers for all cases.
    var _selectedValue = '' + propValue;
    var defaultSelected = null;
    for (var _i2 = 0; _i2 < options.length; _i2++) {
      if (options[_i2].value === _selectedValue) {
        options[_i2].selected = true;
        if (setDefaultSelected) {
          options[_i2].defaultSelected = true;
        }
        return;
      }
      if (defaultSelected === null && !options[_i2].disabled) {
        defaultSelected = options[_i2];
      }
    }
    if (defaultSelected !== null) {
      defaultSelected.selected = true;
    }
  }
}

/**
 * Implements a <select> host component that allows optionally setting the