@react-aria/interactions
Version:
Spectrum UI components in React
158 lines (150 loc) • 7.8 kB
JavaScript
var $82z6W$reactariautils = require("@react-aria/utils");
var $82z6W$react = require("react");
function $parcel$export(e, n, v, s) {
Object.defineProperty(e, n, {get: v, set: s, enumerable: true, configurable: true});
}
$parcel$export(module.exports, "useHover", () => $ffbc150311c75f01$export$ae780daf29e6d456);
/*
* 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.
*/ // Portions of the code in this file are based on code from react.
// Original licensing for the following can be found in the
// NOTICE file in the root directory of this source tree.
// See https://github.com/facebook/react/tree/cc7c1aece46a6b69b41958d731e0fd27c94bfc6c/packages/react-interactions
// iOS fires onPointerEnter twice: once with pointerType="touch" and again with pointerType="mouse".
// We want to ignore these emulated events so they do not trigger hover behavior.
// See https://bugs.webkit.org/show_bug.cgi?id=214609.
let $ffbc150311c75f01$var$globalIgnoreEmulatedMouseEvents = false;
let $ffbc150311c75f01$var$hoverCount = 0;
function $ffbc150311c75f01$var$setGlobalIgnoreEmulatedMouseEvents() {
$ffbc150311c75f01$var$globalIgnoreEmulatedMouseEvents = true;
// Clear globalIgnoreEmulatedMouseEvents after a short timeout. iOS fires onPointerEnter
// with pointerType="mouse" immediately after onPointerUp and before onFocus. On other
// devices that don't have this quirk, we don't want to ignore a mouse hover sometime in
// the distant future because a user previously touched the element.
setTimeout(()=>{
$ffbc150311c75f01$var$globalIgnoreEmulatedMouseEvents = false;
}, 50);
}
function $ffbc150311c75f01$var$handleGlobalPointerEvent(e) {
if (e.pointerType === 'touch') $ffbc150311c75f01$var$setGlobalIgnoreEmulatedMouseEvents();
}
function $ffbc150311c75f01$var$setupGlobalTouchEvents() {
if (typeof document === 'undefined') return;
if (typeof PointerEvent !== 'undefined') document.addEventListener('pointerup', $ffbc150311c75f01$var$handleGlobalPointerEvent);
else if (process.env.NODE_ENV === 'test') document.addEventListener('touchend', $ffbc150311c75f01$var$setGlobalIgnoreEmulatedMouseEvents);
$ffbc150311c75f01$var$hoverCount++;
return ()=>{
$ffbc150311c75f01$var$hoverCount--;
if ($ffbc150311c75f01$var$hoverCount > 0) return;
if (typeof PointerEvent !== 'undefined') document.removeEventListener('pointerup', $ffbc150311c75f01$var$handleGlobalPointerEvent);
else if (process.env.NODE_ENV === 'test') document.removeEventListener('touchend', $ffbc150311c75f01$var$setGlobalIgnoreEmulatedMouseEvents);
};
}
function $ffbc150311c75f01$export$ae780daf29e6d456(props) {
let { onHoverStart: onHoverStart, onHoverChange: onHoverChange, onHoverEnd: onHoverEnd, isDisabled: isDisabled } = props;
let [isHovered, setHovered] = (0, $82z6W$react.useState)(false);
let state = (0, $82z6W$react.useRef)({
isHovered: false,
ignoreEmulatedMouseEvents: false,
pointerType: '',
target: null
}).current;
(0, $82z6W$react.useEffect)($ffbc150311c75f01$var$setupGlobalTouchEvents, []);
let { addGlobalListener: addGlobalListener, removeAllGlobalListeners: removeAllGlobalListeners } = (0, $82z6W$reactariautils.useGlobalListeners)();
let { hoverProps: hoverProps, triggerHoverEnd: triggerHoverEnd } = (0, $82z6W$react.useMemo)(()=>{
let triggerHoverStart = (event, pointerType)=>{
state.pointerType = pointerType;
if (isDisabled || pointerType === 'touch' || state.isHovered || !event.currentTarget.contains(event.target)) return;
state.isHovered = true;
let target = event.currentTarget;
state.target = target;
// When an element that is hovered over is removed, no pointerleave event is fired by the browser,
// even though the originally hovered target may have shrunk in size so it is no longer hovered.
// However, a pointerover event will be fired on the new target the mouse is over.
// In Chrome this happens immediately. In Safari and Firefox, it happens upon moving the mouse one pixel.
addGlobalListener((0, $82z6W$reactariautils.getOwnerDocument)(event.target), 'pointerover', (e)=>{
if (state.isHovered && state.target && !(0, $82z6W$reactariautils.nodeContains)(state.target, e.target)) triggerHoverEnd(e, e.pointerType);
}, {
capture: true
});
if (onHoverStart) onHoverStart({
type: 'hoverstart',
target: target,
pointerType: pointerType
});
if (onHoverChange) onHoverChange(true);
setHovered(true);
};
let triggerHoverEnd = (event, pointerType)=>{
let target = state.target;
state.pointerType = '';
state.target = null;
if (pointerType === 'touch' || !state.isHovered || !target) return;
state.isHovered = false;
removeAllGlobalListeners();
if (onHoverEnd) onHoverEnd({
type: 'hoverend',
target: target,
pointerType: pointerType
});
if (onHoverChange) onHoverChange(false);
setHovered(false);
};
let hoverProps = {};
if (typeof PointerEvent !== 'undefined') {
hoverProps.onPointerEnter = (e)=>{
if ($ffbc150311c75f01$var$globalIgnoreEmulatedMouseEvents && e.pointerType === 'mouse') return;
triggerHoverStart(e, e.pointerType);
};
hoverProps.onPointerLeave = (e)=>{
if (!isDisabled && e.currentTarget.contains(e.target)) triggerHoverEnd(e, e.pointerType);
};
} else if (process.env.NODE_ENV === 'test') {
hoverProps.onTouchStart = ()=>{
state.ignoreEmulatedMouseEvents = true;
};
hoverProps.onMouseEnter = (e)=>{
if (!state.ignoreEmulatedMouseEvents && !$ffbc150311c75f01$var$globalIgnoreEmulatedMouseEvents) triggerHoverStart(e, 'mouse');
state.ignoreEmulatedMouseEvents = false;
};
hoverProps.onMouseLeave = (e)=>{
if (!isDisabled && e.currentTarget.contains(e.target)) triggerHoverEnd(e, 'mouse');
};
}
return {
hoverProps: hoverProps,
triggerHoverEnd: triggerHoverEnd
};
}, [
onHoverStart,
onHoverChange,
onHoverEnd,
isDisabled,
state,
addGlobalListener,
removeAllGlobalListeners
]);
(0, $82z6W$react.useEffect)(()=>{
// Call the triggerHoverEnd as soon as isDisabled changes to true
// Safe to call triggerHoverEnd, it will early return if we aren't currently hovering
if (isDisabled) triggerHoverEnd({
currentTarget: state.target
}, state.pointerType);
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [
isDisabled
]);
return {
hoverProps: hoverProps,
isHovered: isHovered
};
}
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