mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-06 06:58:26 +00:00
f92b9339ee
Summary: The standardized Meta copyright notice is "Copyright (c) Meta Platforms, Inc. and affiliates." and not "Copyright (c) Meta Platforms, Inc. and its affiliates." (Dropping the "its") This diff updates the copyright notice in each source file to the correct this. Reviewed By: willbailey Differential Revision: D44737667 fbshipit-source-id: 643bf36df76723e70d9d826c53cf8f29b8a0c8cc
92 lines
2.8 KiB
Swift
92 lines
2.8 KiB
Swift
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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import IGListKit
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import UIKit
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final class LabelCell: UICollectionViewCell {
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fileprivate static let insets = UIEdgeInsets(top: 8, left: 15, bottom: 8, right: 15)
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fileprivate static let font = UIFont.systemFont(ofSize: 17)
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static var singleLineHeight: CGFloat {
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return font.lineHeight + insets.top + insets.bottom
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}
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static func textHeight(_ text: String, width: CGFloat) -> CGFloat {
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let constrainedSize = CGSize(width: width - insets.left - insets.right, height: CGFloat.greatestFiniteMagnitude)
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let attributes = [ NSAttributedString.Key.font: font ]
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let options: NSStringDrawingOptions = [.usesFontLeading, .usesLineFragmentOrigin]
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let bounds = (text as NSString).boundingRect(with: constrainedSize, options: options, attributes: attributes, context: nil)
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return ceil(bounds.height) + insets.top + insets.bottom
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}
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fileprivate let label: UILabel = {
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let label = UILabel()
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label.backgroundColor = .clear
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label.numberOfLines = 0
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label.font = LabelCell.font
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return label
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}()
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let separator: CALayer = {
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let layer = CALayer()
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layer.backgroundColor = UIColor.defaultSeparator.cgColor
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return layer
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}()
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var text: String? {
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get {
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return label.text
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}
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set {
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label.text = newValue
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}
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}
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override init(frame: CGRect) {
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super.init(frame: frame)
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contentView.backgroundColor = UIColor.background
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contentView.addSubview(label)
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contentView.layer.addSublayer(separator)
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}
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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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override func layoutSubviews() {
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super.layoutSubviews()
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let bounds = contentView.bounds
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label.frame = bounds.inset(by: LabelCell.insets)
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let height: CGFloat = 0.5
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let left = LabelCell.insets.left
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separator.frame = CGRect(x: left, y: bounds.height - height, width: bounds.width - left, height: height)
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}
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override var isHighlighted: Bool {
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didSet {
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let color = isHighlighted ? UIColor.gray.withAlphaComponent(0.3) : UIColor.clear
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contentView.backgroundColor = color
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}
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}
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override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
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super.traitCollectionDidChange(previousTraitCollection)
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separator.backgroundColor = UIColor.defaultSeparator.cgColor
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}
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}
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extension LabelCell: ListBindable {
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func bindViewModel(_ viewModel: Any) {
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guard let viewModel = viewModel as? String else { return }
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label.text = viewModel
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}
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}
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