blob: ab8626001eb7bc244bd80212c5cc13ce16c66674 (
plain)
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
|
//
// RelayStatusIndicatorView.swift
// MullvadVPN
//
// Created by pronebird on 01/05/2019.
// Copyright © 2019 Mullvad VPN AB. All rights reserved.
//
import UIKit
@IBDesignable class RelayStatusIndicatorView: UIControl {
private let circleLayer: CALayer = {
let layer = CALayer()
layer.needsDisplayOnBoundsChange = true
return layer
}()
@IBInspectable var isActive: Bool = false {
didSet {
updateCircleLayerColor()
}
}
override var isHighlighted: Bool {
didSet {
updateCircleLayerColor()
}
}
override init(frame: CGRect) {
super.init(frame: frame)
setup()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
setup()
}
override func tintColorDidChange() {
super.tintColorDidChange()
updateCircleLayerColor()
}
override func layoutSublayers(of layer: CALayer) {
super.layoutSublayers(of: layer)
guard layer == self.layer else { return }
// keep the circular layer square
let shortSide = min(layer.bounds.width, layer.bounds.height)
let circleOrigin = CGPoint(
x: (layer.bounds.width - shortSide) * 0.5,
y: (layer.bounds.height - shortSide) * 0.5
)
let circleSize = CGSize(width: shortSide, height: shortSide)
circleLayer.frame = CGRect(origin: circleOrigin, size: circleSize)
circleLayer.cornerRadius = shortSide * 0.5
}
private func setup() {
isUserInteractionEnabled = false
backgroundColor = UIColor.clear
layer.addSublayer(circleLayer)
updateCircleLayerColor()
}
private func updateCircleLayerColor() {
let baseColor = isActive
? UIColor.RelayStatusIndicator.activeColor
: UIColor.RelayStatusIndicator.inactiveColor
let circleColor: UIColor = isHighlighted ? tintColor : baseColor
CATransaction.begin()
CATransaction.setDisableActions(true)
circleLayer.backgroundColor = circleColor.cgColor
CATransaction.commit()
}
}
|
