@elastic/eui
Version:
Elastic UI Component Library
136 lines (130 loc) • 6.21 kB
JavaScript
import _defineProperty from "@babel/runtime/helpers/defineProperty";
import _slicedToArray from "@babel/runtime/helpers/slicedToArray";
import _extends from "@babel/runtime/helpers/extends";
import _objectWithoutProperties from "@babel/runtime/helpers/objectWithoutProperties";
var _excluded = ["children", "className", "sections", "position", "theme"],
_excluded2 = ["children", "style"];
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
/*
* 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, { useEffect, useState, useMemo, useCallback } from 'react';
import classNames from 'classnames';
import { useEuiMemoizedStyles, useEuiThemeCSSVariables } from '../../services';
import { mathWithUnits, logicalStyles } from '../../global_styling';
import { EuiHeaderBreadcrumbs } from './header_breadcrumbs';
import { EuiHeaderSectionItem, EuiHeaderSection } from './header_section';
import { euiHeaderStyles, euiHeaderVariables } from './header.styles';
import { jsx as ___EmotionJSX } from "@emotion/react";
var createHeaderSection = function createHeaderSection(sections) {
return sections.map(function (section, index) {
return ___EmotionJSX(EuiHeaderSectionItem, {
key: index
}, section);
});
};
export var EuiHeader = function EuiHeader(_ref) {
var children = _ref.children,
className = _ref.className,
sections = _ref.sections,
_ref$position = _ref.position,
position = _ref$position === void 0 ? 'static' : _ref$position,
_ref$theme = _ref.theme,
theme = _ref$theme === void 0 ? 'default' : _ref$theme,
rest = _objectWithoutProperties(_ref, _excluded);
var classes = classNames('euiHeader', className);
var styles = useEuiMemoizedStyles(euiHeaderStyles);
var cssStyles = [styles.euiHeader, styles[position], styles[theme]];
if (sections && children) {
// In case both children and sections are passed, warn in the console that the children will be disregarded
console.warn('EuiHeader cannot accept both `children` and `sections`. It will disregard the `children`.');
}
var contents = useMemo(function () {
if (!sections || !sections.length) return null;
return sections.map(function (section, index) {
var content = [];
if (section.items) {
// Items get wrapped in EuiHeaderSection and each item in a EuiHeaderSectionItem
content.push(___EmotionJSX(EuiHeaderSection, {
key: "items-".concat(index)
}, createHeaderSection(section.items)));
}
if (section.breadcrumbs) {
content.push(
// Breadcrumbs are separate and cannot be contained in a EuiHeaderSection
// in order for truncation to work
___EmotionJSX(EuiHeaderBreadcrumbs, _extends({
key: "breadcrumbs-".concat(index),
breadcrumbs: section.breadcrumbs
}, section.breadcrumbProps)));
}
return content;
});
}, [sections]) || children;
return position === 'fixed' ? ___EmotionJSX(EuiFixedHeader, _extends({
css: cssStyles,
className: classes
}, rest), contents) : ___EmotionJSX("div", _extends({
css: cssStyles,
className: classes
}, rest), contents);
};
/**
* Fixed headers - logic around dynamically calculating the total
* page offset and setting the `top` position of subsequent headers
*/
// Start a counter to manage the total number of fixed headers
// Exported for unit testing only
export var euiFixedHeadersCount = 0;
// Exported for unit testing only
export var EuiFixedHeader = function EuiFixedHeader(_ref2) {
var children = _ref2.children,
style = _ref2.style,
rest = _objectWithoutProperties(_ref2, _excluded2);
var _useEuiThemeCSSVariab = useEuiThemeCSSVariables(),
setGlobalCSSVariables = _useEuiThemeCSSVariab.setGlobalCSSVariables;
var headerHeight = useEuiMemoizedStyles(euiHeaderVariables).height;
var getHeaderOffset = useCallback(function () {
return mathWithUnits(headerHeight, function (x) {
return x * euiFixedHeadersCount;
});
}, [headerHeight]);
var _useState = useState(),
_useState2 = _slicedToArray(_useState, 2),
topPosition = _useState2[0],
setTopPosition = _useState2[1];
useEffect(function () {
// Get the top position from the offset of previous header(s)
setTopPosition(getHeaderOffset());
// Increment fixed header counter for each fixed header
euiFixedHeadersCount++;
setGlobalCSSVariables({
'--euiFixedHeadersOffset': getHeaderOffset()
});
document.body.classList.add('euiBody--headerIsFixed'); // TODO: Consider deleting this legacy className
return function () {
euiFixedHeadersCount--;
setGlobalCSSVariables({
'--euiFixedHeadersOffset': getHeaderOffset()
});
if (euiFixedHeadersCount === 0) {
document.body.classList.remove('euiBody--headerIsFixed'); // TODO: Consider deleting this legacy className
}
};
}, [getHeaderOffset, setGlobalCSSVariables]);
var inlineStyles = useMemo(function () {
return logicalStyles(_objectSpread({
top: topPosition
}, style));
}, [topPosition, style]);
return ___EmotionJSX("div", _extends({
"data-fixed-header": true // Used by EuiFlyouts as a query selector
,
style: inlineStyles
}, rest), children);
};