@elastic/eui
Version:
Elastic UI Component Library
129 lines (127 loc) • 6.78 kB
JavaScript
import _extends from "@babel/runtime/helpers/extends";
import _objectWithoutProperties from "@babel/runtime/helpers/objectWithoutProperties";
import _defineProperty from "@babel/runtime/helpers/defineProperty";
import _slicedToArray from "@babel/runtime/helpers/slicedToArray";
var _excluded = ["cloneElement", "className"];
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
/*
* 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, { useContext, useEffect, useRef, useMemo, useState } from 'react';
import classNames from 'classnames';
import { css } from '@emotion/css';
import isEqual from 'lodash/isEqual';
import { EuiSystemContext, EuiThemeContext, EuiNestedThemeContext, EuiModificationsContext, EuiColorModeContext } from './context';
import { EuiEmotionThemeProvider } from './emotion';
import { buildTheme, getColorMode, getComputed, mergeDeep } from './utils';
import { jsx as ___EmotionJSX } from "@emotion/react";
export var EuiThemeProvider = function EuiThemeProvider(_ref) {
var _system = _ref.theme,
_colorMode = _ref.colorMode,
_modifications = _ref.modify,
children = _ref.children,
wrapperProps = _ref.wrapperProps;
var _useContext = useContext(EuiNestedThemeContext),
isGlobalTheme = _useContext.isGlobalTheme,
bodyColor = _useContext.bodyColor;
var parentSystem = useContext(EuiSystemContext);
var parentModifications = useContext(EuiModificationsContext);
var parentColorMode = useContext(EuiColorModeContext);
var parentTheme = useContext(EuiThemeContext);
var _useState = useState(_system || parentSystem),
_useState2 = _slicedToArray(_useState, 2),
system = _useState2[0],
setSystem = _useState2[1];
var prevSystemKey = useRef(system.key);
var _useState3 = useState(mergeDeep(parentModifications, _modifications)),
_useState4 = _slicedToArray(_useState3, 2),
modifications = _useState4[0],
setModifications = _useState4[1];
var prevModifications = useRef(modifications);
var _useState5 = useState(getColorMode(_colorMode, parentColorMode)),
_useState6 = _slicedToArray(_useState5, 2),
colorMode = _useState6[0],
setColorMode = _useState6[1];
var prevColorMode = useRef(colorMode);
var isParentTheme = useRef(prevSystemKey.current === parentSystem.key && colorMode === parentColorMode && isEqual(parentModifications, modifications));
var _useState7 = useState(isParentTheme.current && Object.keys(parentTheme).length ? _objectSpread({}, parentTheme) // Intentionally create a new object to break referential equality
: getComputed(system, buildTheme(modifications, "_".concat(system.key)), colorMode)),
_useState8 = _slicedToArray(_useState7, 2),
theme = _useState8[0],
setTheme = _useState8[1];
useEffect(function () {
var newSystem = _system || parentSystem;
if (prevSystemKey.current !== newSystem.key) {
setSystem(newSystem);
prevSystemKey.current = newSystem.key;
isParentTheme.current = false;
}
}, [_system, parentSystem]);
useEffect(function () {
var newModifications = mergeDeep(parentModifications, _modifications);
if (!isEqual(prevModifications.current, newModifications)) {
setModifications(newModifications);
prevModifications.current = newModifications;
isParentTheme.current = false;
}
}, [_modifications, parentModifications]);
useEffect(function () {
var newColorMode = getColorMode(_colorMode, parentColorMode);
if (!isEqual(newColorMode, prevColorMode.current)) {
setColorMode(newColorMode);
prevColorMode.current = newColorMode;
isParentTheme.current = false;
}
}, [_colorMode, parentColorMode]);
useEffect(function () {
if (!isParentTheme.current) {
setTheme(getComputed(system, buildTheme(modifications, "_".concat(system.key)), colorMode));
}
}, [colorMode, system, modifications]);
var nestedThemeContext = useMemo(function () {
return {
isGlobalTheme: false,
// The theme that determines the global body styles
bodyColor: isGlobalTheme ? theme.colors.text : bodyColor,
hasDifferentColorFromGlobalTheme: isGlobalTheme ? false : bodyColor !== theme.colors.text,
colorClassName: /*#__PURE__*/css("label:euiColorMode-", _colorMode, ";color:", theme.colors.text, ";;label:colorClassName;")
};
}, [theme, isGlobalTheme, bodyColor, _colorMode]);
var renderedChildren = useMemo(function () {
if (isGlobalTheme) {
return children; // No wrapper
}
var _ref2 = wrapperProps || {},
cloneElement = _ref2.cloneElement,
className = _ref2.className,
rest = _objectWithoutProperties(_ref2, _excluded);
var props = _objectSpread(_objectSpread({}, rest), {}, {
className: classNames(className, nestedThemeContext.colorClassName)
});
if (cloneElement) {
return /*#__PURE__*/React.cloneElement(children, _objectSpread(_objectSpread({}, props), {}, {
className: classNames(children.props.className, props.className)
}));
} else {
return ___EmotionJSX("span", _extends({}, props, {
className: classNames('euiThemeProvider', props.className)
}), children);
}
}, [isGlobalTheme, nestedThemeContext, wrapperProps, children]);
return ___EmotionJSX(EuiColorModeContext.Provider, {
value: colorMode
}, ___EmotionJSX(EuiSystemContext.Provider, {
value: system
}, ___EmotionJSX(EuiModificationsContext.Provider, {
value: modifications
}, ___EmotionJSX(EuiThemeContext.Provider, {
value: theme
}, ___EmotionJSX(EuiNestedThemeContext.Provider, {
value: nestedThemeContext
}, ___EmotionJSX(EuiEmotionThemeProvider, null, renderedChildren))))));
};