@elastic/eui/optimize/es/components/code/code_block_full_screen.js

Elastic UI Component Library

import _extends from "@babel/runtime/helpers/extends";
import _slicedToArray from "@babel/runtime/helpers/slicedToArray";
/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */

import React, { useState, useCallback, useMemo, useRef } from 'react';
import { keys, useEuiMemoizedStyles } from '../../services';
import { useEuiI18n } from '../i18n';
import { EuiButtonIcon } from '../button';
import { EuiFocusTrap } from '../focus_trap';
import { EuiOverlayMask } from '../overlay_mask';
import { euiCodeBlockStyles } from './code_block.styles';
import { EuiDelayRender } from '../delay_render';

/**
 * Hook that returns fullscreen-related state/logic/utils
 */
import { jsx as ___EmotionJSX } from "@emotion/react";
export var useFullScreen = function useFullScreen(_ref) {
  var overflowHeight = _ref.overflowHeight;
  var toggleButtonRef = useRef(null);
  var showFullScreenButton = !!overflowHeight;
  var _useState = useState(false),
    _useState2 = _slicedToArray(_useState, 2),
    isFullScreen = _useState2[0],
    setIsFullScreen = _useState2[1];
  var returnFocus = function returnFocus() {
    // uses timeout to ensure focus is placed after potential other updates happen
    setTimeout(function () {
      var _toggleButtonRef$curr;
      (_toggleButtonRef$curr = toggleButtonRef.current) === null || _toggleButtonRef$curr === void 0 || _toggleButtonRef$curr.focus();
    });
  };
  var toggleFullScreen = useCallback(function () {
    setIsFullScreen(function (isFullScreen) {
      return !isFullScreen;
    });
    if (isFullScreen) {
      returnFocus();
    }
  }, [isFullScreen]);
  var onKeyDown = useCallback(function (event) {
    if (event.key === keys.ESCAPE) {
      // We need to make sure annotation Escape keypresses don't also cause fullscreen mode to close
      var focus = document.activeElement;
      var isAnnotationPopover = !!(focus !== null && focus !== void 0 && focus.dataset.popoverOpen) || !!(focus !== null && focus !== void 0 && focus.closest('[data-popover-open]'));
      if (!isAnnotationPopover) {
        event.preventDefault();
        event.stopPropagation();
        setIsFullScreen(false);
        returnFocus();
      }
    }
  }, []);
  var _useEuiI18n = useEuiI18n(['euiCodeBlockFullScreen.fullscreenCollapse', 'euiCodeBlockFullScreen.fullscreenExpand'], ['Collapse', 'Expand']),
    _useEuiI18n2 = _slicedToArray(_useEuiI18n, 2),
    fullscreenCollapse = _useEuiI18n2[0],
    fullscreenExpand = _useEuiI18n2[1];
  var fullScreenButton = useMemo(function () {
    var button = ___EmotionJSX(EuiButtonIcon, {
      buttonRef: toggleButtonRef,
      className: "euiCodeBlock__fullScreenButton",
      onClick: toggleFullScreen,
      iconType: isFullScreen ? 'fullScreenExit' : 'fullScreen',
      color: "text",
      "aria-label": isFullScreen ? fullscreenCollapse : fullscreenExpand
    });
    return showFullScreenButton ? isFullScreen ?
    // use delay to prevent label being updated in non-fullscreen state before fullscreen is opened
    // otherwise this causes screen readers to read the collapse label before anything else (as the button was focused when opening)
    ___EmotionJSX(EuiDelayRender, {
      delay: 10
    }, button) : button : null;
  }, [showFullScreenButton, toggleFullScreen, isFullScreen, fullscreenCollapse, fullscreenExpand]);
  return {
    fullScreenButton: fullScreenButton,
    isFullScreen: isFullScreen,
    onKeyDown: onKeyDown
  };
};

/**
 * Portalled full screen wrapper
 */
export var EuiCodeBlockFullScreenWrapper = function EuiCodeBlockFullScreenWrapper(_ref2) {
  var children = _ref2.children,
    onClose = _ref2.onClose;
  var styles = useEuiMemoizedStyles(euiCodeBlockStyles);
  var cssStyles = [styles.euiCodeBlock, styles.l,
  // Force fullscreen to use large font
  styles.isFullScreen];
  var ariaLabel = useEuiI18n('euiCodeBlockFullScreen.ariaLabel', 'Expanded code block');
  var dialogProps = {
    role: 'dialog',
    'aria-modal': true,
    'aria-label': ariaLabel,
    onKeyDown: onClose
  };
  return ___EmotionJSX(EuiOverlayMask, null, ___EmotionJSX(EuiFocusTrap, {
    scrollLock: true,
    preventScrollOnFocus: true,
    clickOutsideDisables: true
  }, ___EmotionJSX("div", _extends({
    className: "euiCodeBlockFullScreen",
    css: cssStyles
  }, dialogProps), children)));
};