metatext/Views/UIKit/NewItemsView.swift

112 lines
4.5 KiB
Swift
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2021-02-21 23:00:56 +00:00
// Copyright © 2021 Metabolist. All rights reserved.
import UIKit
final class NewItemsView: UIView {
let button = UIButton()
public var title: String? {
get { label.text }
set {
label.text = newValue
button.accessibilityLabel = newValue
}
}
private let label = UILabel()
private let blurView: UIVisualEffectView
private let vibrancyView: UIVisualEffectView
init() {
let blurEffect = UIBlurEffect(style: .systemChromeMaterial)
blurView = UIVisualEffectView(effect: blurEffect)
vibrancyView = UIVisualEffectView(effect: UIVibrancyEffect(blurEffect: blurEffect, style: .label))
super.init(frame: .zero)
initialSetup()
}
@available(*, unavailable)
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func layoutSubviews() {
super.layoutSubviews()
let cornerRadius = bounds.height / 2
layer.cornerRadius = cornerRadius
blurView.layer.cornerRadius = cornerRadius
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layer.shadowPath = UIBezierPath(roundedRect: layer.bounds, cornerRadius: cornerRadius).cgPath
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}
}
private extension NewItemsView {
// swiftlint:disable:next function_body_length
func initialSetup() {
backgroundColor = .clear
layer.shadowOffset = .zero
layer.shadowRadius = .defaultShadowRadius
layer.shadowOpacity = .defaultShadowOpacity
addSubview(blurView)
blurView.translatesAutoresizingMaskIntoConstraints = false
blurView.clipsToBounds = true
blurView.contentView.addSubview(vibrancyView)
vibrancyView.translatesAutoresizingMaskIntoConstraints = false
let stackView = UIStackView()
vibrancyView.contentView.addSubview(stackView)
stackView.translatesAutoresizingMaskIntoConstraints = false
stackView.spacing = .defaultSpacing
let arrowImage = UIImage(systemName: "arrow.up",
withConfiguration: UIImage.SymbolConfiguration(weight: .bold))
stackView.addArrangedSubview(UIImageView(image: arrowImage))
stackView.addArrangedSubview(label)
label.adjustsFontForContentSizeCategory = true
label.font = .preferredFont(forTextStyle: .headline)
addSubview(button)
button.translatesAutoresizingMaskIntoConstraints = false
let touchStartAction = UIAction { [weak self] _ in self?.alpha = 0.75 }
button.addAction(touchStartAction, for: .touchDown)
button.addAction(touchStartAction, for: .touchDragEnter)
let touchEndAction = UIAction { [weak self] _ in self?.alpha = 1 }
button.addAction(touchEndAction, for: .touchDragExit)
button.addAction(touchEndAction, for: .touchUpInside)
button.addAction(touchEndAction, for: .touchUpOutside)
button.addAction(touchEndAction, for: .touchCancel)
NSLayoutConstraint.activate([
blurView.leadingAnchor.constraint(equalTo: leadingAnchor),
blurView.topAnchor.constraint(equalTo: topAnchor),
blurView.trailingAnchor.constraint(equalTo: trailingAnchor),
blurView.bottomAnchor.constraint(equalTo: bottomAnchor),
button.leadingAnchor.constraint(equalTo: leadingAnchor),
button.topAnchor.constraint(equalTo: topAnchor),
button.trailingAnchor.constraint(equalTo: trailingAnchor),
button.bottomAnchor.constraint(equalTo: bottomAnchor),
vibrancyView.leadingAnchor.constraint(equalTo: blurView.contentView.leadingAnchor),
vibrancyView.topAnchor.constraint(equalTo: blurView.contentView.topAnchor),
vibrancyView.trailingAnchor.constraint(equalTo: blurView.contentView.trailingAnchor),
vibrancyView.bottomAnchor.constraint(equalTo: blurView.contentView.bottomAnchor),
stackView.leadingAnchor.constraint(equalTo: vibrancyView.contentView.leadingAnchor,
constant: .defaultSpacing),
stackView.topAnchor.constraint(equalTo: vibrancyView.contentView.topAnchor, constant: .defaultSpacing),
stackView.trailingAnchor.constraint(equalTo: vibrancyView.contentView.trailingAnchor,
constant: -.defaultSpacing * 2),
stackView.bottomAnchor.constraint(equalTo: vibrancyView.contentView.bottomAnchor,
constant: -.defaultSpacing)
])
}
}