120 lines
3.6 KiB
Swift
120 lines
3.6 KiB
Swift
//
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// Copyright 2021-2024 New Vector Ltd.
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//
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// SPDX-License-Identifier: AGPL-3.0-only
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// Please see LICENSE in the repository root for full details.
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//
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import UIKit
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import Reusable
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/// `CoachMarkView` is used to display an information bubble view with a given text.
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@objcMembers
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class CoachMarkView: UIView, NibLoadable, Themable {
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// MARK: Constants
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public static var TopLeftPosition: CGPoint {
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if UIDevice.current.orientation.isPortrait {
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return CGPoint(x: 16, y: 40)
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} else {
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return CGPoint(x: 16, y: 32)
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}
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}
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enum MarkPosition: Int {
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case topLeft
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case topRight
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case bottomLeft
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case bottomRight
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}
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// MARK: Private
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@IBOutlet private weak var backgroundView: UIImageView!
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@IBOutlet private weak var textLabel: UILabel!
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@IBOutlet private weak var textLabelTopMargin: NSLayoutConstraint!
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@IBOutlet private weak var textLabelBottomMargin: NSLayoutConstraint!
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private var text: String? {
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didSet {
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textLabel.text = text
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}
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}
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private var markPosition: MarkPosition = .topLeft
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private var position: CGPoint!
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// MARK: Setup
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class func instantiate(text: String?, from position: CGPoint, markPosition: MarkPosition) -> Self {
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let view = Self.loadFromNib()
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view.text = text
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view.position = position
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view.markPosition = markPosition
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return view
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}
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// MARK: UIView
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override func willMove(toSuperview newSuperview: UIView?) {
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super.willMove(toSuperview: newSuperview)
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setupView()
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if newSuperview != nil {
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update(theme: ThemeService.shared().theme)
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}
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}
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override func didMoveToSuperview() {
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super.didMoveToSuperview()
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guard let superview = superview else {
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return
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}
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let layoutGuide = superview.safeAreaLayoutGuide
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translatesAutoresizingMaskIntoConstraints = false
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leadingAnchor.constraint(equalTo: layoutGuide.leadingAnchor, constant: position.x).isActive = true
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topAnchor.constraint(equalTo: layoutGuide.topAnchor, constant: position.y).isActive = true
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}
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// MARK: Themable
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func update(theme: Theme) {
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textLabel.textColor = theme.colors.background
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textLabel.font = theme.fonts.bodySB
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backgroundView.tintColor = theme.colors.accent
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}
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// MARK: Private
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private func setupView() {
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let image: UIImage = Asset.Images.coachMark.image
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let imageSize = image.size
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let center = CGPoint(x: ceil(imageSize.width / 2), y: ceil(imageSize.height / 2))
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backgroundView.image = image.resizableImage(withCapInsets: .init(top: center.y - 1, left: center.x - 1, bottom: center.y + 1, right: center.x + 1), resizingMode: .stretch)
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switch markPosition {
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case .topLeft:
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backgroundView.transform = .identity
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case .topRight:
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backgroundView.transform = .init(scaleX: -1, y: 1)
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case .bottomLeft:
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backgroundView.transform = .init(scaleX: 1, y: -1)
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invertVerticalMargins()
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case .bottomRight:
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backgroundView.transform = .init(scaleX: -1, y: -1)
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invertVerticalMargins()
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}
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textLabel.text = text
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}
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private func invertVerticalMargins() {
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let temp = self.textLabelTopMargin.constant
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self.textLabelTopMargin.constant = self.textLabelBottomMargin.constant
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self.textLabelBottomMargin.constant = temp
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}
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}
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