-
Notifications
You must be signed in to change notification settings - Fork 0
/
utils.ts
141 lines (118 loc) · 3.12 KB
/
utils.ts
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
import { useToast } from "@chakra-ui/toast";
import { isEqual } from "lodash-es";
import {
DependencyList,
EffectCallback,
useEffect,
useRef,
useState,
} from "react";
export const useNetworkStatus = () => {
const [isOffline, setIsOffline] = useState(false);
const toast = useToast();
useEffect(() => {
const networkToastId = "networkToastId";
const handleGoingOffline = () => {
setIsOffline(true);
if (!toast.isActive(networkToastId)) {
toast({
id: networkToastId,
title: "Offline",
description: "Please check your network connection.",
duration: null,
isClosable: false,
status: "warning",
variant: "left-accent",
});
}
};
const handleGoingOnline = () => {
setIsOffline(false);
toast.close(networkToastId);
};
window.addEventListener("offline", handleGoingOffline);
window.addEventListener("online", handleGoingOnline);
return () => {
window.removeEventListener("offline", handleGoingOffline);
window.removeEventListener("online", handleGoingOnline);
};
// eslint-disable-next-line react-hooks/exhaustive-deps
}, []);
return { isOffline };
};
/**
* Does a deep comparison of object dependencies
* instead of referential equality.
*/
export const useDeeplyComparedEffect = (
callback: EffectCallback,
dependencies: DependencyList | undefined
) => {
const useDeepCompareMemoize = (value: any) => {
const ref = useRef();
if (!isEqual(value, ref.current)) {
ref.current = value;
}
return ref.current;
};
// eslint-disable-next-line react-hooks/exhaustive-deps
return useEffect(
callback,
dependencies?.map(useDeepCompareMemoize) as typeof dependencies
);
};
/**
* Reference: https://css-tricks.com/converting-color-spaces-in-javascript/#hex-to-hsl
*/
export const hexToHSL = (H: string) => {
// Convert hex to RGB first
let r = 0,
g = 0,
b = 0;
if (H.length == 4) {
r = Number("0x" + H[1] + H[1]);
g = Number("0x" + H[2] + H[2]);
b = Number("0x" + H[3] + H[3]);
} else if (H.length == 7) {
r = Number("0x" + H[1] + H[2]);
g = Number("0x" + H[3] + H[4]);
b = Number("0x" + H[5] + H[6]);
}
// Then to HSL
r /= 255;
g /= 255;
b /= 255;
let cmin = Math.min(r, g, b),
cmax = Math.max(r, g, b),
delta = cmax - cmin,
h = 0,
s = 0,
l = 0;
if (delta == 0) h = 0;
else if (cmax == r) h = ((g - b) / delta) % 6;
else if (cmax == g) h = (b - r) / delta + 2;
else h = (r - g) / delta + 4;
h = Math.round(h * 60);
if (h < 0) h += 360;
l = (cmax + cmin) / 2;
s = delta == 0 ? 0 : delta / (1 - Math.abs(2 * l - 1));
s = +(s * 100).toFixed(1);
l = +(l * 100).toFixed(1);
return { h, s, l };
};
/**
* Lighten a color to be used as background color.
*/
export const lighten = (hex: string) => {
let { h, s, l } = hexToHSL(hex);
l = 85;
return `hsl(${h}, ${s}%, ${l}%)`;
};
/**
* Darken a color to be used as foreground color.
*/
export const darken = (hex: string) => {
let { h, s, l } = hexToHSL(hex);
l = 15;
return `hsl(${h}, ${s}%, ${l}%)`;
};