add hw2

node_modules/@react-aria/interactions/dist/useHover.module.js

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+import {useGlobalListeners as $AWxnT$useGlobalListeners, getOwnerDocument as $AWxnT$getOwnerDocument, nodeContains as $AWxnT$nodeContains} from "@react-aria/utils";
+import {useState as $AWxnT$useState, useRef as $AWxnT$useRef, useEffect as $AWxnT$useEffect, useMemo as $AWxnT$useMemo} from "react";
+
+/*
+ * 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 $6179b936705e76d3$var$globalIgnoreEmulatedMouseEvents = false;
+let $6179b936705e76d3$var$hoverCount = 0;
+function $6179b936705e76d3$var$setGlobalIgnoreEmulatedMouseEvents() {
+    $6179b936705e76d3$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(()=>{
+        $6179b936705e76d3$var$globalIgnoreEmulatedMouseEvents = false;
+    }, 50);
+}
+function $6179b936705e76d3$var$handleGlobalPointerEvent(e) {
+    if (e.pointerType === 'touch') $6179b936705e76d3$var$setGlobalIgnoreEmulatedMouseEvents();
+}
+function $6179b936705e76d3$var$setupGlobalTouchEvents() {
+    if (typeof document === 'undefined') return;
+    if ($6179b936705e76d3$var$hoverCount === 0) {
+        if (typeof PointerEvent !== 'undefined') document.addEventListener('pointerup', $6179b936705e76d3$var$handleGlobalPointerEvent);
+        else if (process.env.NODE_ENV === 'test') document.addEventListener('touchend', $6179b936705e76d3$var$setGlobalIgnoreEmulatedMouseEvents);
+    }
+    $6179b936705e76d3$var$hoverCount++;
+    return ()=>{
+        $6179b936705e76d3$var$hoverCount--;
+        if ($6179b936705e76d3$var$hoverCount > 0) return;
+        if (typeof PointerEvent !== 'undefined') document.removeEventListener('pointerup', $6179b936705e76d3$var$handleGlobalPointerEvent);
+        else if (process.env.NODE_ENV === 'test') document.removeEventListener('touchend', $6179b936705e76d3$var$setGlobalIgnoreEmulatedMouseEvents);
+    };
+}
+function $6179b936705e76d3$export$ae780daf29e6d456(props) {
+    let { onHoverStart: onHoverStart, onHoverChange: onHoverChange, onHoverEnd: onHoverEnd, isDisabled: isDisabled } = props;
+    let [isHovered, setHovered] = (0, $AWxnT$useState)(false);
+    let state = (0, $AWxnT$useRef)({
+        isHovered: false,
+        ignoreEmulatedMouseEvents: false,
+        pointerType: '',
+        target: null
+    }).current;
+    (0, $AWxnT$useEffect)($6179b936705e76d3$var$setupGlobalTouchEvents, []);
+    let { addGlobalListener: addGlobalListener, removeAllGlobalListeners: removeAllGlobalListeners } = (0, $AWxnT$useGlobalListeners)();
+    let { hoverProps: hoverProps, triggerHoverEnd: triggerHoverEnd } = (0, $AWxnT$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, $AWxnT$getOwnerDocument)(event.target), 'pointerover', (e)=>{
+                if (state.isHovered && state.target && !(0, $AWxnT$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 ($6179b936705e76d3$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 && !$6179b936705e76d3$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, $AWxnT$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
+    };
+}
+
+
+export {$6179b936705e76d3$export$ae780daf29e6d456 as useHover};
+//# sourceMappingURL=useHover.module.js.map