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//
// TranslucentButtonBlurView.swift
// MullvadVPN
//
// Created by pronebird on 20/03/2019.
// Copyright © 2019 Mullvad VPN AB. All rights reserved.
//
import UIKit
class TranslucentButtonBlurView: UIVisualEffectView {
init(button: AppButton) {
let effect = UIBlurEffect(style: button.style.blurEffectStyle)
super.init(effect: effect)
button.translatesAutoresizingMaskIntoConstraints = false
contentView.addSubview(button)
NSLayoutConstraint.activate([
button.topAnchor.constraint(equalTo: contentView.topAnchor),
button.leadingAnchor.constraint(equalTo: contentView.leadingAnchor),
button.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),
button.bottomAnchor.constraint(equalTo: contentView.bottomAnchor)
])
layer.cornerRadius = UIMetrics.controlCornerRadius
layer.maskedCorners = button.style.cornerMask(effectiveUserInterfaceLayoutDirection)
layer.masksToBounds = true
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
private extension AppButton.Style {
func cornerMask(_ userInterfaceLayoutDirection: UIUserInterfaceLayoutDirection) -> CACornerMask {
switch (self, userInterfaceLayoutDirection) {
case (.translucentDangerSplitLeft, .leftToRight), (.translucentDangerSplitRight, .rightToLeft):
return [.layerMinXMinYCorner, .layerMinXMaxYCorner]
case (.translucentDangerSplitRight, .leftToRight), (.translucentDangerSplitLeft, .rightToLeft):
return [.layerMaxXMinYCorner, .layerMaxXMaxYCorner]
default:
return [
.layerMinXMinYCorner, .layerMinXMaxYCorner,
.layerMaxXMinYCorner, .layerMaxXMaxYCorner
]
}
}
var blurEffectStyle: UIBlurEffect.Style {
switch self {
case .translucentDangerSplitLeft, .translucentDangerSplitRight, .translucentDanger:
if #available(iOS 13.0, *) {
return .systemUltraThinMaterialDark
} else {
return .dark
}
default:
return .light
}
}
}
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