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Prettify open group suggestion grid

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pull/376/head
Niels Andriesse 3 years ago
parent 86abc6f6ce
commit cd9b48f9fe
1 changed files with 30 additions and 43 deletions
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73
Session/Open Groups/OpenGroupSuggestionGrid.swift
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@ -27,8 +27,8 @@ final class OpenGroupSuggestionGrid : UIView, UICollectionViewDataSource, UIColl
private lazy var spinner: NVActivityIndicatorView = {
let result = NVActivityIndicatorView(frame: CGRect.zero, type: .circleStrokeSpin, color: Colors.text, padding: nil)
result.set(.width, to: 40)
result.set(.height, to: 40)
result.set(.width, to: OpenGroupSuggestionGrid.cellHeight)
result.set(.height, to: OpenGroupSuggestionGrid.cellHeight)
return result
}()
@ -57,8 +57,8 @@ final class OpenGroupSuggestionGrid : UIView, UICollectionViewDataSource, UIColl
addSubview(spinner)
spinner.pin([ UIView.HorizontalEdge.left, UIView.VerticalEdge.top ], to: self)
spinner.startAnimating()
heightConstraint = set(.height, to: 40)
widthAnchor.constraint(greaterThanOrEqualToConstant: 40).isActive = true
heightConstraint = set(.height, to: OpenGroupSuggestionGrid.cellHeight)
widthAnchor.constraint(greaterThanOrEqualToConstant: OpenGroupSuggestionGrid.cellHeight).isActive = true
let _ = OpenGroupAPIV2.defaultRoomsPromise?.done { [weak self] rooms in
self?.rooms = rooms
}
@ -85,9 +85,6 @@ final class OpenGroupSuggestionGrid : UIView, UICollectionViewDataSource, UIColl
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: Cell.identifier, for: indexPath) as! Cell
let roomCount = min(rooms.count, 8)
cell.showRightSeparator = (indexPath.row % 2 != 0) || (indexPath.row % 2 == 0 && indexPath.row == roomCount - 1)
cell.showBottomSeparator = (indexPath.row >= roomCount - 2)
cell.room = rooms[indexPath.item]
return cell
}
@ -103,14 +100,18 @@ final class OpenGroupSuggestionGrid : UIView, UICollectionViewDataSource, UIColl
extension OpenGroupSuggestionGrid {
fileprivate final class Cell : UICollectionViewCell {
var showRightSeparator = false
var showBottomSeparator = false
var room: OpenGroupAPIV2.Info? { didSet { update() } }
private var rightSeparator: UIView!
private var bottomSeparator: UIView!
static let identifier = "OpenGroupSuggestionGridCell"
private lazy var snContentView: UIView = {
let result = UIView()
result.backgroundColor = Colors.navigationBarBackground
result.set(.height, to: Cell.contentViewHeight)
result.layer.cornerRadius = Cell.contentViewCornerRadius
return result
}()
private lazy var imageView: UIImageView = {
let result = UIImageView()
let size: CGFloat = 24
@ -129,6 +130,10 @@ extension OpenGroupSuggestionGrid {
return result
}()
private static let contentViewInset: CGFloat = 4
private static var contentViewHeight: CGFloat { OpenGroupSuggestionGrid.cellHeight - 2 * contentViewInset }
private static var contentViewCornerRadius: CGFloat { contentViewHeight / 2 }
override init(frame: CGRect) {
super.init(frame: frame)
setUpViewHierarchy()
@ -140,41 +145,25 @@ extension OpenGroupSuggestionGrid {
}
private func setUpViewHierarchy() {
addSubview(snContentView)
let stackView = UIStackView(arrangedSubviews: [ imageView, label ])
stackView.axis = .horizontal
stackView.spacing = Values.smallSpacing
addSubview(stackView)
stackView.center(.vertical, in: self)
stackView.pin(.leading, to: .leading, of: self, withInset: Values.smallSpacing)
trailingAnchor.constraint(greaterThanOrEqualTo: stackView.trailingAnchor, constant: Values.smallSpacing).isActive = true
setUpSeparators()
snContentView.addSubview(stackView)
stackView.center(.vertical, in: snContentView)
stackView.pin(.leading, to: .leading, of: snContentView, withInset: Values.smallSpacing)
snContentView.trailingAnchor.constraint(greaterThanOrEqualTo: stackView.trailingAnchor, constant: Values.smallSpacing).isActive = true
snContentView.pin(to: self, withInset: Cell.contentViewInset)
}
private func setUpSeparators() {
func getVSeparator() -> UIView {
let separator = UIView()
separator.backgroundColor = Colors.separator
separator.set(.height, to: 1 / UIScreen.main.scale)
return separator
}
func getHSeparator() -> UIView {
let separator = UIView()
separator.backgroundColor = Colors.separator
separator.set(.width, to: 1 / UIScreen.main.scale)
return separator
}
let leftSeparator = getHSeparator()
addSubview(leftSeparator)
leftSeparator.pin([ UIView.HorizontalEdge.left, UIView.VerticalEdge.top, UIView.VerticalEdge.bottom ], to: self)
let topSeparator = getVSeparator()
addSubview(topSeparator)
topSeparator.pin([ UIView.HorizontalEdge.left, UIView.VerticalEdge.top, UIView.HorizontalEdge.right ], to: self)
rightSeparator = getHSeparator()
addSubview(rightSeparator)
rightSeparator.pin([ UIView.VerticalEdge.top, UIView.HorizontalEdge.right, UIView.VerticalEdge.bottom ], to: self)
bottomSeparator = getVSeparator()
addSubview(bottomSeparator)
bottomSeparator.pin([ UIView.HorizontalEdge.left, UIView.VerticalEdge.bottom, UIView.HorizontalEdge.right ], to: self)
override func layoutSubviews() {
super.layoutSubviews()
let newPath = UIBezierPath(roundedRect: snContentView.bounds, cornerRadius: Cell.contentViewCornerRadius).cgPath
snContentView.layer.shadowPath = newPath
snContentView.layer.shadowColor = UIColor.black.cgColor
snContentView.layer.shadowOffset = CGSize.zero
snContentView.layer.shadowOpacity = 0.2
snContentView.layer.shadowRadius = 2
}
private func update() {
@ -183,8 +172,6 @@ extension OpenGroupSuggestionGrid {
imageView.image = given(promise.value) { UIImage(data: $0)! }
imageView.isHidden = (imageView.image == nil)
label.text = room.name
rightSeparator.alpha = showRightSeparator ? 1 :0
bottomSeparator.alpha = showBottomSeparator ? 1 :0
}
}
}

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