270 lines
9.9 KiB
Swift
270 lines
9.9 KiB
Swift
//
|
|
// CalendarFooterReusableView.swift
|
|
// VDS
|
|
//
|
|
// Created by Kanamarlapudi, Vasavi on 29/04/24.
|
|
//
|
|
|
|
import UIKit
|
|
import VDSCoreTokens
|
|
|
|
/// Footer view to show indicators data.
|
|
class CalendarFooterReusableView: UICollectionReusableView {
|
|
|
|
///Identifier for the Calendar Footer Reusable View.
|
|
static let identifier: String = String(describing: CalendarFooterReusableView.self)
|
|
|
|
//--------------------------------------------------
|
|
// MARK: - Private Properties
|
|
//--------------------------------------------------
|
|
private var surface: Surface = .light
|
|
private var items: [CalendarBase.CalendarIndicatorModel] = []
|
|
internal var containerSize: CGSize { CGSize(width: 304, height: 40) }
|
|
internal var indicatorWidth = 8.0
|
|
|
|
var textLabel: Label = Label().with {
|
|
$0.translatesAutoresizingMaskIntoConstraints = false
|
|
$0.textAlignment = .left
|
|
$0.textStyle = .bodySmall
|
|
$0.numberOfLines = 1
|
|
}
|
|
|
|
internal var containerView = View().with {
|
|
$0.clipsToBounds = true
|
|
$0.isAccessibilityElement = true
|
|
$0.accessibilityLabel = "Legend"
|
|
}
|
|
|
|
private let flowLayout = LeftAlignedCollectionViewFlowLayout().with {
|
|
$0.estimatedItemSize = UICollectionViewFlowLayout.automaticSize
|
|
$0.minimumLineSpacing = VDSLayout.space1X
|
|
$0.minimumInteritemSpacing = VDSLayout.space4X
|
|
$0.scrollDirection = .vertical
|
|
}
|
|
|
|
open lazy var legendCollectionView = UICollectionView(frame: .zero, collectionViewLayout: flowLayout).with {
|
|
$0.isScrollEnabled = false
|
|
$0.translatesAutoresizingMaskIntoConstraints = false
|
|
$0.showsVerticalScrollIndicator = false
|
|
$0.showsHorizontalScrollIndicator = false
|
|
$0.isAccessibilityElement = true
|
|
$0.backgroundColor = .clear
|
|
$0.delegate = self
|
|
$0.dataSource = self
|
|
|
|
$0.register(LegendCollectionViewCell.self,
|
|
forCellWithReuseIdentifier: LegendCollectionViewCell.identifier)
|
|
}
|
|
|
|
private var topConstraint: NSLayoutConstraint?
|
|
private var legendLabels: [Label] = []
|
|
|
|
//--------------------------------------------------
|
|
// MARK: - Initializers
|
|
//--------------------------------------------------
|
|
override init(frame: CGRect) {
|
|
super.init(frame: frame)
|
|
setUp()
|
|
}
|
|
|
|
required init?(coder: NSCoder) {
|
|
super.init(coder: coder)
|
|
setUp()
|
|
}
|
|
|
|
open override var accessibilityElements: [Any]? {
|
|
get {
|
|
return [containerView, legendLabels]
|
|
}
|
|
set { super.accessibilityElements = newValue }
|
|
}
|
|
|
|
//--------------------------------------------------
|
|
// MARK: - Private Methods
|
|
//--------------------------------------------------
|
|
/// Configuring the cell with default setup.
|
|
private func setUp() {
|
|
isAccessibilityElement = false
|
|
|
|
addSubview(containerView)
|
|
containerView.pinToSuperView()
|
|
|
|
// legend Collection View
|
|
containerView.addSubview(legendCollectionView)
|
|
legendCollectionView
|
|
.pinTopLessThanOrEqualTo(topAnchor, VDSLayout.space6X, .defaultLow)
|
|
.pinBottom()
|
|
.pinLeading(VDSLayout.space3X)
|
|
.pinTrailing(VDSLayout.space3X)
|
|
.width(containerSize.width - (2 * VDSLayout.space3X))
|
|
.heightGreaterThanEqualTo(16)
|
|
}
|
|
|
|
/// Updating UI to show legend with titles.
|
|
func update(with surface: Surface, indicators: [CalendarBase.CalendarIndicatorModel]) {
|
|
self.items = indicators
|
|
self.surface = surface
|
|
legendLabels.removeAll()
|
|
legendCollectionView.reloadData()
|
|
|
|
var height = legendCollectionView.collectionViewLayout.collectionViewContentSize.height
|
|
if height > 0 {
|
|
topConstraint?.isActive = false
|
|
height = height > containerSize.height ? containerSize.height : height
|
|
let top = containerSize.height - height
|
|
topConstraint = legendCollectionView.topAnchor.constraint(equalTo: topAnchor, constant: top)
|
|
topConstraint?.isActive = true
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
extension CalendarFooterReusableView: UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
|
|
|
|
public func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
|
|
return items.count
|
|
}
|
|
|
|
public func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
|
|
guard collectionView == legendCollectionView,
|
|
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: LegendCollectionViewCell.identifier, for: indexPath) as? LegendCollectionViewCell,
|
|
indexPath.row <= items.count else { return UICollectionViewCell() }
|
|
let text = items[indexPath.row].label
|
|
cell.updateTitle(text: text,
|
|
color: VDSColor.elementsSecondaryOnlight,
|
|
surface: self.surface,
|
|
clearFullcircle: indexPath.row == 1,
|
|
drawSemiCircle: indexPath.row == 2)
|
|
legendLabels.append(cell.title)
|
|
return cell
|
|
}
|
|
|
|
public func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
|
|
textLabel.text = items[indexPath.row].label
|
|
let intrinsicSize = textLabel.intrinsicContentSize
|
|
let cellwidth = intrinsicSize.width + indicatorWidth + VDSLayout.space2X
|
|
return .init(width: min(cellwidth, collectionView.frame.width), height: intrinsicSize.height)
|
|
}
|
|
|
|
}
|
|
|
|
private class LegendCollectionViewCell: UICollectionViewCell {
|
|
|
|
static let identifier: String = String(describing: LegendCollectionViewCell.self)
|
|
|
|
private let textColorConfiguration = SurfaceColorConfiguration(VDSColor.elementsPrimaryOnlight, VDSColor.elementsPrimaryOndark)
|
|
|
|
private let indicatorColorConfiguration = SurfaceColorConfiguration(VDSColor.elementsSecondaryOnlight, VDSColor.elementsSecondaryOndark)
|
|
|
|
open var title: Label = Label().with {
|
|
$0.translatesAutoresizingMaskIntoConstraints = false
|
|
$0.textAlignment = .left
|
|
$0.numberOfLines = 1
|
|
$0.textStyle = .bodySmall
|
|
$0.isAccessibilityElement = true
|
|
$0.backgroundColor = .clear
|
|
}
|
|
|
|
private var legendIndicatorWrapper: View = View().with {
|
|
$0.translatesAutoresizingMaskIntoConstraints = false
|
|
$0.backgroundColor = .clear
|
|
}
|
|
|
|
private var legendIndicator: View = View().with {
|
|
$0.translatesAutoresizingMaskIntoConstraints = false
|
|
$0.backgroundColor = .clear
|
|
$0.layer.borderWidth = 1.0
|
|
}
|
|
|
|
private lazy var stackView = UIStackView().with {
|
|
$0.translatesAutoresizingMaskIntoConstraints = false
|
|
$0.alignment = .fill
|
|
$0.distribution = .fill
|
|
$0.spacing = VDSLayout.space2X
|
|
$0.axis = .horizontal
|
|
$0.backgroundColor = .clear
|
|
}
|
|
|
|
private lazy var shapeLayer = CAShapeLayer()
|
|
|
|
internal var indicatorSize: CGSize { CGSize(width: 8, height: 8) }
|
|
|
|
//--------------------------------------------------
|
|
// MARK: - Initializers
|
|
//--------------------------------------------------
|
|
override init(frame: CGRect) {
|
|
super.init(frame: frame)
|
|
setupCell()
|
|
}
|
|
|
|
required init?(coder: NSCoder) {
|
|
super.init(coder: coder)
|
|
setupCell()
|
|
}
|
|
|
|
func setupCell() {
|
|
addSubview(stackView)
|
|
stackView.pinToSuperView()
|
|
}
|
|
|
|
func updateView() {
|
|
stackView.arrangedSubviews.forEach { $0.removeFromSuperview() }
|
|
legendIndicator.layer.sublayers?.forEach { $0.removeFromSuperlayer() }
|
|
|
|
legendIndicatorWrapper.addSubview(legendIndicator)
|
|
legendIndicator.pinLeading().pinTrailing().width(indicatorSize.width).height(indicatorSize.height).pinCenterY()
|
|
|
|
stackView.addArrangedSubview(legendIndicatorWrapper)
|
|
stackView.addArrangedSubview(title)
|
|
}
|
|
|
|
func updateTitle(text: String, color: UIColor, surface: Surface, clearFullcircle: Bool, drawSemiCircle: Bool) {
|
|
updateView()
|
|
title.surface = surface
|
|
title.text = text
|
|
title.textColor = textColorConfiguration.getColor(surface)
|
|
|
|
legendIndicator.backgroundColor = drawSemiCircle ? .clear : (clearFullcircle ? .clear : color)
|
|
legendIndicator.layer.borderColor = indicatorColorConfiguration.getColor(surface).cgColor
|
|
|
|
self.layoutIfNeeded()
|
|
|
|
legendIndicator.layer.cornerRadius = legendIndicator.frame.size.height / 2.0
|
|
|
|
guard drawSemiCircle else { return }
|
|
|
|
let center = CGPoint(x: legendIndicator.frame.size.width/2, y: legendIndicator.frame.size.height/2)
|
|
let path = UIBezierPath()
|
|
path.move(to: center)
|
|
path.addArc(withCenter: center, radius: center.x, startAngle: 2 * .pi, endAngle: .pi, clockwise: true)
|
|
path.close()
|
|
shapeLayer.path = path.cgPath
|
|
shapeLayer.fillColor = color.cgColor
|
|
|
|
guard legendIndicator.layer.sublayers?.contains(shapeLayer) ?? true else { return }
|
|
legendIndicator.layer.addSublayer(shapeLayer)
|
|
}
|
|
}
|
|
|
|
class LeftAlignedCollectionViewFlowLayout: UICollectionViewFlowLayout {
|
|
|
|
override func layoutAttributesForElements(in rect: CGRect) -> [UICollectionViewLayoutAttributes]? {
|
|
let attributes = super.layoutAttributesForElements(in: rect)
|
|
|
|
var leftMargin = sectionInset.left
|
|
var maxY: CGFloat = -1.0
|
|
attributes?.forEach { layoutAttribute in
|
|
if layoutAttribute.frame.origin.y >= maxY {
|
|
leftMargin = sectionInset.left
|
|
}
|
|
|
|
layoutAttribute.frame.origin.x = leftMargin
|
|
|
|
leftMargin += layoutAttribute.frame.width + minimumInteritemSpacing
|
|
maxY = max(layoutAttribute.frame.maxY , maxY)
|
|
}
|
|
|
|
return attributes
|
|
}
|
|
}
|