120 lines
5.1 KiB
JavaScript
120 lines
5.1 KiB
JavaScript
var $iJhOP$react = require("react");
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var $iJhOP$reactariautils = require("@react-aria/utils");
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function $parcel$export(e, n, v, s) {
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Object.defineProperty(e, n, {get: v, set: s, enumerable: true, configurable: true});
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}
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$parcel$export(module.exports, "useSyntheticBlurEvent", () => $625cf83917e112ad$export$715c682d09d639cc);
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/*
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* Copyright 2020 Adobe. All rights reserved.
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* This file is licensed to you under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License. You may obtain a copy
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* of the License at http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under
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* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
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* OF ANY KIND, either express or implied. See the License for the specific language
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* governing permissions and limitations under the License.
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*/
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class $625cf83917e112ad$export$905e7fc544a71f36 {
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isDefaultPrevented() {
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return this.nativeEvent.defaultPrevented;
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}
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preventDefault() {
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this.defaultPrevented = true;
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this.nativeEvent.preventDefault();
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}
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stopPropagation() {
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this.nativeEvent.stopPropagation();
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this.isPropagationStopped = ()=>true;
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}
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isPropagationStopped() {
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return false;
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}
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persist() {}
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constructor(type, nativeEvent){
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this.nativeEvent = nativeEvent;
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this.target = nativeEvent.target;
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this.currentTarget = nativeEvent.currentTarget;
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this.relatedTarget = nativeEvent.relatedTarget;
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this.bubbles = nativeEvent.bubbles;
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this.cancelable = nativeEvent.cancelable;
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this.defaultPrevented = nativeEvent.defaultPrevented;
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this.eventPhase = nativeEvent.eventPhase;
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this.isTrusted = nativeEvent.isTrusted;
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this.timeStamp = nativeEvent.timeStamp;
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this.type = type;
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}
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}
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function $625cf83917e112ad$export$715c682d09d639cc(onBlur) {
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let stateRef = (0, $iJhOP$react.useRef)({
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isFocused: false,
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observer: null
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});
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// Clean up MutationObserver on unmount. See below.
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(0, $iJhOP$reactariautils.useLayoutEffect)(()=>{
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const state = stateRef.current;
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return ()=>{
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if (state.observer) {
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state.observer.disconnect();
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state.observer = null;
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}
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};
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}, []);
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let dispatchBlur = (0, $iJhOP$reactariautils.useEffectEvent)((e)=>{
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onBlur === null || onBlur === void 0 ? void 0 : onBlur(e);
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});
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// This function is called during a React onFocus event.
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return (0, $iJhOP$react.useCallback)((e)=>{
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// React does not fire onBlur when an element is disabled. https://github.com/facebook/react/issues/9142
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// Most browsers fire a native focusout event in this case, except for Firefox. In that case, we use a
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// MutationObserver to watch for the disabled attribute, and dispatch these events ourselves.
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// For browsers that do, focusout fires before the MutationObserver, so onBlur should not fire twice.
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if (e.target instanceof HTMLButtonElement || e.target instanceof HTMLInputElement || e.target instanceof HTMLTextAreaElement || e.target instanceof HTMLSelectElement) {
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stateRef.current.isFocused = true;
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let target = e.target;
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let onBlurHandler = (e)=>{
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stateRef.current.isFocused = false;
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if (target.disabled) // For backward compatibility, dispatch a (fake) React synthetic event.
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dispatchBlur(new $625cf83917e112ad$export$905e7fc544a71f36('blur', e));
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// We no longer need the MutationObserver once the target is blurred.
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if (stateRef.current.observer) {
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stateRef.current.observer.disconnect();
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stateRef.current.observer = null;
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}
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};
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target.addEventListener('focusout', onBlurHandler, {
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once: true
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});
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stateRef.current.observer = new MutationObserver(()=>{
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if (stateRef.current.isFocused && target.disabled) {
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var _stateRef_current_observer;
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(_stateRef_current_observer = stateRef.current.observer) === null || _stateRef_current_observer === void 0 ? void 0 : _stateRef_current_observer.disconnect();
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let relatedTargetEl = target === document.activeElement ? null : document.activeElement;
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target.dispatchEvent(new FocusEvent('blur', {
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relatedTarget: relatedTargetEl
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}));
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target.dispatchEvent(new FocusEvent('focusout', {
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bubbles: true,
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relatedTarget: relatedTargetEl
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}));
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}
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});
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stateRef.current.observer.observe(target, {
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attributes: true,
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attributeFilter: [
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'disabled'
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]
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});
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}
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}, [
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dispatchBlur
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]);
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}
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//# sourceMappingURL=utils.main.js.map
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