element-ios/Riot/Modules/Room/TimelineDecorations/Reactions/RoomReactionViewCell.swift

99 lines
3.2 KiB
Swift

/*
Copyright 2019-2024 New Vector Ltd.
SPDX-License-Identifier: AGPL-3.0-only
Please see LICENSE in the repository root for full details.
*/
import UIKit
import Reusable
final class RoomReactionViewCell: UICollectionViewCell, NibReusable, Themable {
// MARK: - Constants
private enum Constants {
static let selectedBorderWidth: CGFloat = 1.0
}
// MARK: - Properties
// MARK: Outlets
@IBOutlet private weak var reactionBackgroundView: UIView!
@IBOutlet private weak var emojiLabel: UILabel!
@IBOutlet private weak var countLabel: UILabel!
// MARK: Private
private var theme: Theme?
// MARK: Public
private var isReactionSelected: Bool = false
// MARK: - Life cycle
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
self.reactionBackgroundView.layer.masksToBounds = true
}
override func layoutSubviews() {
super.layoutSubviews()
self.reactionBackgroundView.layer.cornerRadius = self.reactionBackgroundView.frame.size.height/2.0
}
override func preferredLayoutAttributesFitting(_ layoutAttributes: UICollectionViewLayoutAttributes) -> UICollectionViewLayoutAttributes {
/*
On iOS 12, there are issues with self-sizing cells as described in Apple release notes (https://developer.apple.com/documentation/ios_release_notes/ios_12_release_notes) :
"You might encounter issues with systemLayoutSizeFitting(_:) when using a UICollectionViewCell subclass that requires updateConstraints().
(42138227) Workaround: Don't call the cell's setNeedsUpdateConstraints() method unless you need to support live constraint changes.
If you need to support live constraint changes, call updateConstraintsIfNeeded() before calling systemLayoutSizeFitting(_:)."
*/
self.updateConstraintsIfNeeded()
return super.preferredLayoutAttributesFitting(layoutAttributes)
}
// MARK: - Public
func fill(viewData: RoomReactionViewData) {
self.emojiLabel.text = viewData.emoji
self.countLabel.text = viewData.countString
self.isReactionSelected = viewData.isCurrentUserReacted
self.updateViews()
}
func update(theme: Theme) {
self.theme = theme
self.reactionBackgroundView.layer.borderColor = theme.tintColor.cgColor
self.emojiLabel.textColor = theme.textPrimaryColor
self.countLabel.textColor = theme.textPrimaryColor
self.updateViews()
}
// MARK: - Private
private func updateViews() {
let reactionBackgroundColor: UIColor?
let reactionBackgroundBorderWidth: CGFloat
if self.isReactionSelected {
reactionBackgroundColor = self.theme?.tintBackgroundColor
reactionBackgroundBorderWidth = Constants.selectedBorderWidth
} else {
reactionBackgroundColor = self.theme?.colors.system
reactionBackgroundBorderWidth = 0.0
}
self.reactionBackgroundView.layer.borderWidth = reactionBackgroundBorderWidth
self.reactionBackgroundView.backgroundColor = reactionBackgroundColor
}
}