@react-aria/interactions/dist/utils.main.js

Spectrum UI components in React

var $iJhOP$react = require("react");
var $iJhOP$reactariautils = require("@react-aria/utils");


function $parcel$export(e, n, v, s) {
  Object.defineProperty(e, n, {get: v, set: s, enumerable: true, configurable: true});
}

$parcel$export(module.exports, "useSyntheticBlurEvent", () => $625cf83917e112ad$export$715c682d09d639cc);
/*
 * Copyright 2020 Adobe. All rights reserved.
 * This file is licensed to you under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. You may obtain a copy
 * of the License at http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
 * OF ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */ 

class $625cf83917e112ad$export$905e7fc544a71f36 {
    isDefaultPrevented() {
        return this.nativeEvent.defaultPrevented;
    }
    preventDefault() {
        this.defaultPrevented = true;
        this.nativeEvent.preventDefault();
    }
    stopPropagation() {
        this.nativeEvent.stopPropagation();
        this.isPropagationStopped = ()=>true;
    }
    isPropagationStopped() {
        return false;
    }
    persist() {}
    constructor(type, nativeEvent){
        this.nativeEvent = nativeEvent;
        this.target = nativeEvent.target;
        this.currentTarget = nativeEvent.currentTarget;
        this.relatedTarget = nativeEvent.relatedTarget;
        this.bubbles = nativeEvent.bubbles;
        this.cancelable = nativeEvent.cancelable;
        this.defaultPrevented = nativeEvent.defaultPrevented;
        this.eventPhase = nativeEvent.eventPhase;
        this.isTrusted = nativeEvent.isTrusted;
        this.timeStamp = nativeEvent.timeStamp;
        this.type = type;
    }
}
function $625cf83917e112ad$export$715c682d09d639cc(onBlur) {
    let stateRef = (0, $iJhOP$react.useRef)({
        isFocused: false,
        observer: null
    });
    // Clean up MutationObserver on unmount. See below.
    // eslint-disable-next-line arrow-body-style
    (0, $iJhOP$reactariautils.useLayoutEffect)(()=>{
        const state = stateRef.current;
        return ()=>{
            if (state.observer) {
                state.observer.disconnect();
                state.observer = null;
            }
        };
    }, []);
    let dispatchBlur = (0, $iJhOP$reactariautils.useEffectEvent)((e)=>{
        onBlur === null || onBlur === void 0 ? void 0 : onBlur(e);
    });
    // This function is called during a React onFocus event.
    return (0, $iJhOP$react.useCallback)((e)=>{
        // React does not fire onBlur when an element is disabled. https://github.com/facebook/react/issues/9142
        // Most browsers fire a native focusout event in this case, except for Firefox. In that case, we use a
        // MutationObserver to watch for the disabled attribute, and dispatch these events ourselves.
        // For browsers that do, focusout fires before the MutationObserver, so onBlur should not fire twice.
        if (e.target instanceof HTMLButtonElement || e.target instanceof HTMLInputElement || e.target instanceof HTMLTextAreaElement || e.target instanceof HTMLSelectElement) {
            stateRef.current.isFocused = true;
            let target = e.target;
            let onBlurHandler = (e)=>{
                stateRef.current.isFocused = false;
                if (target.disabled) // For backward compatibility, dispatch a (fake) React synthetic event.
                dispatchBlur(new $625cf83917e112ad$export$905e7fc544a71f36('blur', e));
                // We no longer need the MutationObserver once the target is blurred.
                if (stateRef.current.observer) {
                    stateRef.current.observer.disconnect();
                    stateRef.current.observer = null;
                }
            };
            target.addEventListener('focusout', onBlurHandler, {
                once: true
            });
            stateRef.current.observer = new MutationObserver(()=>{
                if (stateRef.current.isFocused && target.disabled) {
                    var _stateRef_current_observer;
                    (_stateRef_current_observer = stateRef.current.observer) === null || _stateRef_current_observer === void 0 ? void 0 : _stateRef_current_observer.disconnect();
                    let relatedTargetEl = target === document.activeElement ? null : document.activeElement;
                    target.dispatchEvent(new FocusEvent('blur', {
                        relatedTarget: relatedTargetEl
                    }));
                    target.dispatchEvent(new FocusEvent('focusout', {
                        bubbles: true,
                        relatedTarget: relatedTargetEl
                    }));
                }
            });
            stateRef.current.observer.observe(target, {
                attributes: true,
                attributeFilter: [
                    'disabled'
                ]
            });
        }
    }, [
        dispatchBlur
    ]);
}


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