"use strict";

exports.__esModule = true;
exports.lock = lock;
exports.unlock = unlock;
// Adapted from https://github.com/vercel/next.js
// License: MIT
// Copyright (c) 2021 Vercel, Inc.
//
// Entrypoint: react-dev-overlay/src/internal/components/Overlay/body-locker.ts
let previousBodyPaddingRight;
let previousBodyOverflowSetting;
let activeLocks = 0;

function lock() {
  setTimeout(() => {
    if (activeLocks++ > 0) {
      return;
    }

    const scrollBarGap = window.innerWidth - document.documentElement.clientWidth;
    const rootElement = document.getElementById(`___gatsby`);

    if (scrollBarGap > 0) {
      previousBodyPaddingRight = document.body.style.paddingRight;
      document.body.style.paddingRight = `${scrollBarGap}px`;
    }

    previousBodyOverflowSetting = document.body.style.overflow;
    document.body.style.overflow = `hidden`;
    rootElement.setAttribute(`aria-hidden`, `true`);
  });
}

function unlock() {
  setTimeout(() => {
    if (activeLocks === 0 || --activeLocks !== 0) {
      return;
    }

    const rootElement = document.getElementById(`___gatsby`);
    rootElement.removeAttribute(`aria-hidden`);

    if (previousBodyPaddingRight !== undefined) {
      document.body.style.paddingRight = previousBodyPaddingRight;
      previousBodyPaddingRight = undefined;
    }

    if (previousBodyOverflowSetting !== undefined) {
      document.body.style.overflow = previousBodyOverflowSetting;
      previousBodyOverflowSetting = undefined;
    }
  });
}