@elastic/eui
Version:
Elastic UI Component Library
258 lines (255 loc) • 11.1 kB
JavaScript
import _extends from "@babel/runtime/helpers/extends";
import _objectWithoutProperties from "@babel/runtime/helpers/objectWithoutProperties";
import _toConsumableArray from "@babel/runtime/helpers/toConsumableArray";
import _classCallCheck from "@babel/runtime/helpers/classCallCheck";
import _createClass from "@babel/runtime/helpers/createClass";
import _possibleConstructorReturn from "@babel/runtime/helpers/possibleConstructorReturn";
import _getPrototypeOf from "@babel/runtime/helpers/getPrototypeOf";
import _inherits from "@babel/runtime/helpers/inherits";
import _defineProperty from "@babel/runtime/helpers/defineProperty";
var _excluded = ["children", "className", "items", "display", "expandByDefault", "showExpansionArrows", "theme"];
function _callSuper(t, o, e) { return o = _getPrototypeOf(o), _possibleConstructorReturn(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], _getPrototypeOf(t).constructor) : o.apply(t, e)); }
function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
/*
* 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, { Component, createContext } from 'react';
import classNames from 'classnames';
import { withEuiTheme, keys, htmlIdGenerator } from '../../services';
import { EuiI18n } from '../i18n';
import { EuiScreenReaderOnly } from '../accessibility';
import { EuiTreeViewItem } from './tree_view_item';
import { euiTreeViewStyles } from './tree_view.styles';
import { jsx as ___EmotionJSX } from "@emotion/react";
var EuiTreeViewContext = /*#__PURE__*/createContext('');
function getTreeId(propId) {
var contextId = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
var idGenerator = arguments.length > 2 ? arguments[2] : undefined;
return propId !== null && propId !== void 0 ? propId : contextId === '' ? idGenerator() : contextId;
}
export var EuiTreeViewClass = /*#__PURE__*/function (_Component) {
function EuiTreeViewClass(props,
// Without the optional ? typing, TS will throw errors on JSX component errors
// @see https://github.com/facebook/react/issues/13944#issuecomment-1183693239
context) {
var _this;
_classCallCheck(this, EuiTreeViewClass);
// TODO: context in constructor has been deprecated.
// We should likely convert this to a function component
_this = _callSuper(this, EuiTreeViewClass, [props, context]);
_defineProperty(_this, "treeIdGenerator", htmlIdGenerator('euiTreeView'));
_defineProperty(_this, "isNested", void 0);
_defineProperty(_this, "buttonRef", []);
_defineProperty(_this, "setButtonRef", function (ref, index) {
_this.buttonRef[index] = ref;
});
_defineProperty(_this, "handleNodeClick", function (node) {
var ignoreCallback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
var index = _this.state.openItems.indexOf(node.id);
_this.setState({
expandChildNodes: false
});
node.isExpanded = !node.isExpanded;
if (!ignoreCallback && node.callback !== undefined) {
node.callback();
}
if (_this.isNodeOpen(node)) {
// if the node is part of openItems[] then remove it
_this.setState({
openItems: _this.state.openItems.filter(function (_, i) {
return i !== index;
})
});
} else {
// if the node isn't part of openItems[] then add it
_this.setState(function (prevState) {
return {
openItems: [].concat(_toConsumableArray(prevState.openItems), [node.id]),
activeItem: node.id
};
});
}
});
// check if the node is included in openItems[]
_defineProperty(_this, "isNodeOpen", function (node) {
return _this.state.openItems.includes(node.id);
});
// Enable keyboard navigation
_defineProperty(_this, "onKeyDown", function (event, node) {
switch (event.key) {
case keys.ARROW_DOWN:
{
var nodeButtons = Array.from(document.querySelectorAll("[data-test-subj=\"euiTreeViewButton-".concat(_this.state.treeID, "\"]")));
var currentIndex = nodeButtons.indexOf(event.currentTarget);
if (currentIndex > -1) {
var nextButton = nodeButtons[currentIndex + 1];
if (nextButton) {
event.preventDefault();
event.stopPropagation();
nextButton.focus();
}
}
break;
}
case keys.ARROW_UP:
{
var _nodeButtons = Array.from(document.querySelectorAll("[data-test-subj=\"euiTreeViewButton-".concat(_this.state.treeID, "\"]")));
var _currentIndex = _nodeButtons.indexOf(event.currentTarget);
if (_currentIndex > -1) {
var prevButton = _nodeButtons[_currentIndex + -1];
if (prevButton) {
event.preventDefault();
event.stopPropagation();
prevButton.focus();
}
}
break;
}
case keys.ARROW_RIGHT:
{
if (!_this.isNodeOpen(node)) {
event.preventDefault();
event.stopPropagation();
_this.handleNodeClick(node, true);
}
break;
}
case keys.ARROW_LEFT:
{
if (_this.isNodeOpen(node)) {
event.preventDefault();
event.stopPropagation();
_this.handleNodeClick(node, true);
}
}
default:
break;
}
});
_defineProperty(_this, "onChildrenKeydown", function (event, index) {
if (event.key === keys.ARROW_LEFT) {
event.preventDefault();
event.stopPropagation();
_this.buttonRef[index].focus();
}
});
_this.isNested = !!_this.context;
_this.state = {
openItems: _this.props.expandByDefault ? _this.props.items.map(function (_ref) {
var id = _ref.id,
children = _ref.children;
return children ? id : null;
}).filter(function (x) {
return x != null;
}) : _this.props.items.map(function (_ref2) {
var id = _ref2.id,
children = _ref2.children,
isExpanded = _ref2.isExpanded;
return children && isExpanded ? id : null;
}).filter(function (x) {
return x != null;
}),
activeItem: '',
treeID: getTreeId(_this.props.id, context, _this.treeIdGenerator),
expandChildNodes: _this.props.expandByDefault || false
};
return _this;
}
_inherits(EuiTreeViewClass, _Component);
return _createClass(EuiTreeViewClass, [{
key: "componentDidUpdate",
value: function componentDidUpdate(prevProps) {
if (this.props.id !== prevProps.id) {
this.setState({
treeID: getTreeId(this.props.id, this.context, this.treeIdGenerator)
});
}
}
}, {
key: "render",
value: function render() {
var _this2 = this;
var _this$props = this.props,
children = _this$props.children,
className = _this$props.className,
items = _this$props.items,
_this$props$display = _this$props.display,
display = _this$props$display === void 0 ? 'default' : _this$props$display,
expandByDefault = _this$props.expandByDefault,
showExpansionArrows = _this$props.showExpansionArrows,
theme = _this$props.theme,
rest = _objectWithoutProperties(_this$props, _excluded);
var styles = euiTreeViewStyles(theme);
var cssStyles = [styles.euiTreeView, styles[display]];
// Computed classNames
var classes = classNames('euiTreeView', className);
var instructionsId = "".concat(this.state.treeID, "--instruction");
return ___EmotionJSX(EuiTreeViewContext.Provider, {
value: this.state.treeID
}, !this.isNested && ___EmotionJSX(EuiI18n, {
token: "euiTreeView.listNavigationInstructions",
default: "You can quickly navigate this list using arrow keys."
}, function (listNavigationInstructions) {
return ___EmotionJSX(EuiScreenReaderOnly, null, ___EmotionJSX("p", {
id: instructionsId
}, listNavigationInstructions));
}), ___EmotionJSX("ul", _extends({
css: cssStyles,
className: classes,
id: !this.isNested ? this.state.treeID : undefined,
"aria-describedby": !this.isNested ? instructionsId : undefined,
role: "list" // VoiceOver doesn't parse lists with `list-style: none` as the correct role - @see https://www.scottohara.me/blog/2019/01/12/lists-and-safari.html
}, rest), items.map(function (node, index) {
var buttonId = node.id;
var wrappingId = _this2.treeIdGenerator(buttonId);
var isNodeExpanded = node.children ? _this2.isNodeOpen(node) : undefined; // Determines the `aria-expanded` attribute
var icon = node.icon;
if (node.iconWhenExpanded && isNodeExpanded) {
icon = node.iconWhenExpanded;
} else if (!icon && node.useEmptyIcon) {
icon = ___EmotionJSX(React.Fragment, null); // Renders a placeholder
}
return ___EmotionJSX(EuiTreeViewItem, {
key: buttonId + index,
id: buttonId,
className: node.className,
buttonRef: function buttonRef(ref) {
return _this2.setButtonRef(ref, index);
},
"aria-controls": node.children ? wrappingId : undefined,
label: node.label,
icon: icon,
hasArrow: showExpansionArrows,
isExpanded: isNodeExpanded,
isActive: _this2.state.activeItem === node.id,
display: display,
"data-test-subj": "euiTreeViewButton-".concat(_this2.state.treeID),
onKeyDown: function onKeyDown(event) {
return _this2.onKeyDown(event, node);
},
onClick: function onClick() {
return _this2.handleNodeClick(node);
}
}, node.children && ___EmotionJSX("div", {
id: wrappingId,
onKeyDown: function onKeyDown(event) {
return _this2.onChildrenKeydown(event, index);
}
}, isNodeExpanded && ___EmotionJSX(EuiTreeView, {
items: node.children,
display: display,
showExpansionArrows: showExpansionArrows,
expandByDefault: _this2.state.expandChildNodes
})));
})));
}
}]);
}(Component);
_defineProperty(EuiTreeViewClass, "contextType", EuiTreeViewContext);
export var EuiTreeView = Object.assign(withEuiTheme(EuiTreeViewClass), {
Item: EuiTreeViewItem
});