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
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* 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 CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import * as React from "react";
import { SFC, useState, useEffect } from "react";
import { WindowLocation } from "@reach/router";
import styled from "styled-components";
import { get as themeGet } from "../../../utils/theme";
const sidebarPrimary = themeGet("colors.sidebarPrimary");
const primaryColor = themeGet("colors.primary");
export const LinkProps = {
to: "",
onClick: React.MouseEventHandler
};
const Link = styled.a`
position: relative;
font-size: 14px;
padding: 0 0 5px 16px;
text-decoration: none;
opacity: 0.5;
transition: opacity 0.2s;
&,
&:visited,
&.active {
color: ${themeGet("colors.sidebarText")};
}
&.active {
opacity: 1;
}
&:before {
z-index: 1;
position: absolute;
display: block;
content: "";
top: 1px;
left: 0;
width: 0;
height: 20px;
background: ${p => sidebarPrimary(p) || primaryColor(p)};
transition: width 0.2s;
}
&.active:before {
width: 2px;
}
`;
Link.defaultProps = LinkProps;
const SmallLinkProps = Object.assign({}, LinkProps, {
as: null,
slug: ""
//location: WindowLocation
});
export const SmallLink = ({ as: Component, slug, location, ...props }) => {
const [isActive, setActive] = useState(false);
useEffect(() => {
const decodedHash = decodeURI(location.hash);
const currentHash = decodedHash && decodedHash.slice(1, Infinity);
setActive(Boolean(slug === currentHash));
}, [location]);
return (
<Link as={Component} {...props} className={isActive ? "active" : ""} />
);
};
SmallLink.defaultProps = SmallLinkProps;