1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
import React, { useRef, useState, useEffect, useCallback } from "react";
import { motion, useMotionValue, useTransform } from "framer-motion";
import { RefreshCw } from "lucide-react";
import "./PullToRefresh.css";
interface PullToRefreshProps {
onRefresh: () => Promise<void> | void;
isRefreshing?: boolean;
children: React.ReactNode;
threshold?: number;
}
export const PullToRefresh: React.FC<PullToRefreshProps> = ({
onRefresh,
isRefreshing = false,
children,
threshold = 60,
}) => {
const [isActive, setIsActive] = useState(false);
const [isPulling, setIsPulling] = useState(false);
const containerRef = useRef<HTMLDivElement>(null);
const startY = useRef<number>(0);
const y = useMotionValue(0);
const opacity = useTransform(y, [0, threshold], [0, 1]);
const scale = useTransform(y, [0, threshold], [0.5, 1]);
const rotate = useTransform(y, [0, threshold], [0, 180]);
const isAtPageTop = useCallback(() => {
const scrollTop = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;
return scrollTop <= 10; // Increased tolerance to 10px
}, []);
const handleTouchStart = useCallback((e: TouchEvent) => {
// Very strict check - must be at absolute top
const windowScroll = window.pageYOffset || window.scrollY || 0;
const htmlScroll = document.documentElement.scrollTop;
const bodyScroll = document.body.scrollTop;
const containerScroll = containerRef.current?.scrollTop || 0;
const parentScroll = containerRef.current?.parentElement?.scrollTop || 0;
const maxScroll = Math.max(windowScroll, htmlScroll, bodyScroll, containerScroll, parentScroll);
if (maxScroll > 0 || isRefreshing) {
setIsPulling(false);
setIsActive(false);
return;
}
startY.current = e.touches[0].clientY;
setIsPulling(true);
}, [isRefreshing]);
const handleTouchMove = useCallback((e: TouchEvent) => {
if (!isPulling) return;
// Continuously check if we're still at the top during the gesture
const windowScroll = window.pageYOffset || window.scrollY || 0;
const htmlScroll = document.documentElement.scrollTop;
const bodyScroll = document.body.scrollTop;
const containerScroll = containerRef.current?.scrollTop || 0;
const parentScroll = containerRef.current?.parentElement?.scrollTop || 0;
const maxScroll = Math.max(windowScroll, htmlScroll, bodyScroll, containerScroll, parentScroll);
if (maxScroll > 10) {
// Cancel pull-to-refresh if we've scrolled away from top
setIsPulling(false);
setIsActive(false);
y.set(0);
return;
}
const currentY = e.touches[0].clientY;
const pullDistance = currentY - startY.current;
if (pullDistance > 0) {
// Only prevent default when the event is cancelable
if (e.cancelable) {
e.preventDefault();
}
const dampedDistance = Math.min(pullDistance * 0.5, threshold * 1.2);
y.set(dampedDistance);
if (dampedDistance >= threshold && !isActive) {
setIsActive(true);
// Only vibrate if user activation is available and vibrate is supported
if (navigator.vibrate && navigator.userActivation?.hasBeenActive) {
navigator.vibrate(50);
}
} else if (dampedDistance < threshold && isActive) {
setIsActive(false);
}
} else {
// Reset if pulling up
y.set(0);
setIsActive(false);
}
}, [isPulling, threshold, isActive, y]);
const handleTouchEnd = useCallback(async () => {
if (!isPulling) return;
setIsPulling(false);
if (isActive && y.get() >= threshold && !isRefreshing) {
try {
await onRefresh();
} catch (error) {
console.error('Refresh failed:', error);
}
}
// Always reset state
setIsActive(false);
y.set(0);
startY.current = 0;
}, [isPulling, isActive, threshold, isRefreshing, onRefresh, y]);
useEffect(() => {
const container = containerRef.current;
if (!container) return;
// Use passive: false for touchmove to allow preventDefault
container.addEventListener('touchstart', handleTouchStart, { passive: true });
container.addEventListener('touchmove', handleTouchMove, { passive: false });
container.addEventListener('touchend', handleTouchEnd, { passive: true });
return () => {
container.removeEventListener('touchstart', handleTouchStart);
container.removeEventListener('touchmove', handleTouchMove);
container.removeEventListener('touchend', handleTouchEnd);
};
}, [handleTouchStart, handleTouchMove, handleTouchEnd]);
return (
<div className="pull-to-refresh-container" ref={containerRef}>
{/* Simple indicator */}
{isPulling && (
<motion.div
className="pull-to-refresh-indicator"
style={{ opacity }}
>
<motion.div
className={`refresh-icon-container ${isActive ? 'active' : ''}`}
style={{ scale, rotate: isRefreshing ? 0 : rotate }}
>
<RefreshCw
className={`refresh-icon ${isRefreshing ? 'spinning' : ''}`}
/>
</motion.div>
</motion.div>
)}
{/* Normal content - no transform interference */}
<div className="pull-to-refresh-content">
{children}
</div>
</div>
);
};
|
