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//
// TranslucentButtonBlurView.swift
// MullvadVPN
//
// Created by pronebird on 20/03/2019.
// Copyright © 2019 Mullvad VPN AB. All rights reserved.
//
import UIKit
private let kButtonCornerRadius = CGFloat(4)
@IBDesignable class TranslucentButtonBlurView: UIVisualEffectView {
override init(effect: UIVisualEffect?) {
super.init(effect: effect)
setup()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
setup()
}
private func setup() {
layer.cornerRadius = kButtonCornerRadius
layer.masksToBounds = true
updateCornerMask()
}
override func awakeFromNib() {
super.awakeFromNib()
updateCornerMask()
}
private func updateCornerMask() {
for case let button as AppButton in contentView.subviews {
layer.maskedCorners = Self.cornerMask(buttonStyle: button.style)
}
}
private class func cornerMask(buttonStyle: AppButton.Style) -> CACornerMask {
switch buttonStyle {
case .translucentDangerSplitLeft:
return [.layerMinXMinYCorner, .layerMinXMaxYCorner]
case .translucentDangerSplitRight:
return [.layerMaxXMinYCorner, .layerMaxXMaxYCorner]
default:
return [
.layerMinXMinYCorner, .layerMinXMaxYCorner,
.layerMaxXMinYCorner, .layerMaxXMaxYCorner
]
}
}
}
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