Function getBuiltInPlacements

src/SelectTrigger.tsx:7–50

(
  dropdownMatchSelectWidth: number | boolean,
)

import type { Placement, RenderDOMFunc } from './BaseSelect';

const getBuiltInPlacements = (
  dropdownMatchSelectWidth: number | boolean,
): Record<string, AlignType> => {
  // Enable horizontal overflow auto-adjustment when a custom dropdown width is provided
  const adjustX = dropdownMatchSelectWidth === true ? 0 : 1;
  return {
    bottomLeft: {
      points: ['tl', 'bl'],
      offset: [0, 4],
      overflow: {
        adjustX,
        adjustY: 1,
      },
      htmlRegion: 'scroll',
    },
    bottomRight: {
      points: ['tr', 'br'],
      offset: [0, 4],
      overflow: {
        adjustX,
        adjustY: 1,
      },
      htmlRegion: 'scroll',
    },
    topLeft: {
      points: ['bl', 'tl'],
      offset: [0, -4],
      overflow: {
        adjustX,
        adjustY: 1,
      },
      htmlRegion: 'scroll',
    },
    topRight: {
      points: ['br', 'tr'],
      offset: [0, -4],
      overflow: {
        adjustX,
        adjustY: 1,
      },
      htmlRegion: 'scroll',
    },
  };
};

export interface RefTriggerProps {
  getPopupElement: () => HTMLDivElement;