Function selectOptionsBase

src/select-options.ts:12–141

(
  newValue: boolean,
  select: Element,
  values: HTMLElement | HTMLElement[] | string[] | string,
  init?: MouseEventInit,
  {skipPointerEventsCheck = false}: PointerOptions = {},
)

import {hover, unhover} from './hover'

function selectOptionsBase(
  newValue: boolean,
  select: Element,
  values: HTMLElement | HTMLElement[] | string[] | string,
  init?: MouseEventInit,
  {skipPointerEventsCheck = false}: PointerOptions = {},
) {
  if (!newValue && !(select as HTMLSelectElement).multiple) {
    throw getConfig().getElementError(
      `Unable to deselect an option in a non-multiple select. Use selectOptions to change the selection instead.`,
      select,
    )
  }
  const valArray = Array.isArray(values) ? values : [values]
  const allOptions = Array.from(
    select.querySelectorAll('option, [role="option"]'),
  )
  const selectedOptions = valArray
    .map(val => {
      if (typeof val !== 'string' && allOptions.includes(val)) {
        return val
      } else {
        const matchingOption = allOptions.find(
          o =>
            (o as HTMLInputElement | HTMLTextAreaElement).value === val ||
            o.innerHTML === val,
        )
        if (matchingOption) {
          return matchingOption
        } else {
          throw getConfig().getElementError(
            `Value "${String(val)}" not found in options`,
            select,
          )
        }
      }
    })
    .filter(option => !isDisabled(option))

  if (isDisabled(select) || !selectedOptions.length) return

  if (isElementType(select, 'select')) {
    if (select.multiple) {
      for (const option of selectedOptions) {
        const withPointerEvents = skipPointerEventsCheck
          ? true
          : hasPointerEvents(option)

        // events fired for multiple select are weird. Can't use hover...
        if (withPointerEvents) {
          fireEvent.pointerOver(option, init)
          fireEvent.pointerEnter(select, init)
          fireEvent.mouseOver(option)
          fireEvent.mouseEnter(select)
          fireEvent.pointerMove(option, init)
          fireEvent.mouseMove(option, init)
          fireEvent.pointerDown(option, init)
          fireEvent.mouseDown(option, init)