100 lines
2.6 KiB
Swift
100 lines
2.6 KiB
Swift
//
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// Copyright 2019 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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import Foundation
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public class ThemeHeaderView: UIView {
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let label: UILabel
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static var labelFont: UIFont {
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return UIFont.dynamicTypeBodyClamped.semibold()
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}
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static var desiredHeight: CGFloat {
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return labelFont.pointSize / 17 * 28
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}
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private static var textColor: UIColor {
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if #available(iOS 14, *) {
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return UIColor(dynamicProvider: { _ in
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Theme.isDarkThemeEnabled ? UIColor.ows_gray10 : UIColor.ows_gray90
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})
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} else {
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return Theme.isDarkThemeEnabled ? UIColor.ows_gray05 : UIColor.ows_gray90
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}
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}
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init(inset: CGFloat) {
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label = UILabel()
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label.font = Self.labelFont
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super.init(frame: .zero)
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self.preservesSuperviewLayoutMargins = true
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updateColors()
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self.addSubview(label)
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label.autoPinEdge(toSuperviewMargin: .trailing, withInset: inset)
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label.autoPinEdge(toSuperviewMargin: .leading, withInset: inset)
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label.autoVCenterInSuperview()
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}
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@available(*, unavailable, message: "Unimplemented")
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required init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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public func configure(title: String) {
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self.label.text = title
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}
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public func prepareForReuse() {
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self.label.text = nil
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}
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override public func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
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updateColors()
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}
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private func updateColors() {
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self.backgroundColor = .clear
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label.textColor = Self.textColor
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}
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}
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public class ThemeCollectionViewSectionHeader: UICollectionReusableView {
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public class var reuseIdentifier: String { return "ThemeCollectionViewSectionHeader" }
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fileprivate var inset: CGFloat { 16.0 }
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fileprivate lazy var headerView = {
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buildHeaderView(inset: inset)
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}()
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override public init(frame: CGRect) {
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super.init(frame: frame)
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backgroundColor = .clear
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preservesSuperviewLayoutMargins = true
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addSubview(headerView)
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headerView.autoPinEdgesToSuperviewEdges()
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}
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public required init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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public override func prepareForReuse() {
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super.prepareForReuse()
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headerView.prepareForReuse()
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}
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public func configure(title: String) {
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headerView.configure(title: title)
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}
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fileprivate func buildHeaderView(inset: CGFloat) -> ThemeHeaderView {
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return ThemeHeaderView(inset: inset)
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}
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}
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