@elastic/eui
Version:
Elastic UI Component Library
91 lines (90 loc) • 4.38 kB
JavaScript
import _defineProperty from "@babel/runtime/helpers/defineProperty";
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 { Children, cloneElement, useRef, useEffect, forwardRef } from 'react';
import { useGeneratedHtmlId } from '../../services/accessibility';
export var EuiOutsideClickDetector = /*#__PURE__*/forwardRef(function (props, ref) {
// the id is used to identify which EuiOutsideClickDetector
// is the source of a click event; as the click event bubbles
// up and reaches the click detector's child component the
// id value is stamped on the event. This id is inspected
// in the document's click handler, and if the id doesn't
// exist or doesn't match this detector's id, then trigger
// the outsideClick callback.
//
// Taking this approach instead of checking if the event's
// target element exists in this component's DOM sub-tree is
// necessary for handling clicks originating from children
// rendered through React's portals (EuiPortal). The id tracking
// works because React guarantees the event bubbles through the
// virtual DOM and executes EuiClickDetector's onClick handler,
// stamping the id even though the event originates outside
// this component's reified DOM tree.
var id = useGeneratedHtmlId();
var capturedDownIds = useRef([]);
useEffect(function () {
function onClickOutside(e) {
var isDisabled = props.isDisabled,
onOutsideClick = props.onOutsideClick;
if (isDisabled) {
capturedDownIds.current = [];
return;
}
var event = e;
if (event.euiGeneratedBy && event.euiGeneratedBy.includes(id) || capturedDownIds.current.includes(id)) {
capturedDownIds.current = [];
return;
}
capturedDownIds.current = [];
return onOutsideClick(event);
}
document.addEventListener('mouseup', onClickOutside);
document.addEventListener('touchend', onClickOutside);
return function () {
document.removeEventListener('mouseup', onClickOutside);
document.removeEventListener('touchend', onClickOutside);
};
}, [props.isDisabled, props.onOutsideClick]);
function onChildClick(event, cb) {
// to support nested click detectors, build an array
// of detector ids that have been encountered;
if (event.nativeEvent.hasOwnProperty('euiGeneratedBy')) {
event.nativeEvent.euiGeneratedBy.push(id);
} else {
event.nativeEvent.euiGeneratedBy = [id];
}
if (cb) cb(event);
}
function onChildMouseDown(event) {
onChildClick(event, function (e) {
var nativeEvent = e.nativeEvent;
capturedDownIds.current = nativeEvent.euiGeneratedBy;
if (props.onMouseDown) props.onMouseDown(e);
if (props.onTouchStart) props.onTouchStart(e);
});
}
function onChildMouseUp(event) {
onChildClick(event, function (e) {
if (props.onMouseUp) props.onMouseUp(e);
if (props.onTouchEnd) props.onTouchEnd(e);
});
}
var child = Children.only(props.children);
var childProps = _objectSpread(_objectSpread({}, props.children.props), {}, {
onMouseDown: onChildMouseDown,
onTouchStart: onChildMouseDown,
onMouseUp: onChildMouseUp,
onTouchEnd: onChildMouseUp
}, ref ? {
ref: ref
} : {});
return /*#__PURE__*/cloneElement(child, childProps);
});
EuiOutsideClickDetector.displayName = 'EuiOutsideClickDetector';