98 lines
4.0 KiB
Swift
98 lines
4.0 KiB
Swift
/*
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Copyright 2019-2024 New Vector Ltd.
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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 Foundation
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extension UIView {
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/// Add a subview matching parent view using autolayout
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@objc func vc_addSubViewMatchingParent(_ subView: UIView) {
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self.addSubview(subView)
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subView.translatesAutoresizingMaskIntoConstraints = false
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let views = ["view": subView]
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["H:|[view]|", "V:|[view]|"].forEach { vfl in
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let constraints = NSLayoutConstraint.constraints(withVisualFormat: vfl,
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options: [],
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metrics: nil,
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views: views)
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constraints.forEach { $0.isActive = true }
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}
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}
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/// Add a subview matching the safe area of the parent view using autolayout
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@objc func vc_addSubViewMatchingParentSafeArea(_ subView: UIView) {
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self.addSubview(subView)
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subView.translatesAutoresizingMaskIntoConstraints = false
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subView.leadingAnchor.constraint(equalTo: self.safeAreaLayoutGuide.leadingAnchor).isActive = true
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subView.topAnchor.constraint(equalTo: self.safeAreaLayoutGuide.topAnchor).isActive = true
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subView.trailingAnchor.constraint(equalTo: self.safeAreaLayoutGuide.trailingAnchor).isActive = true
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subView.bottomAnchor.constraint(equalTo: self.safeAreaLayoutGuide.bottomAnchor).isActive = true
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}
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/// Add a subview matching parent view with additional insets using autolayout
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@objc func vc_addSubViewMatchingParent(_ subView: UIView, withInsets insets: UIEdgeInsets) {
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self.addSubview(subView)
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subView.translatesAutoresizingMaskIntoConstraints = false
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subView.leadingAnchor.constraint(equalTo: self.safeAreaLayoutGuide.leadingAnchor, constant: insets.left).isActive = true
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subView.topAnchor.constraint(equalTo: self.safeAreaLayoutGuide.topAnchor, constant: insets.top).isActive = true
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subView.trailingAnchor.constraint(equalTo: self.safeAreaLayoutGuide.trailingAnchor, constant: insets.right).isActive = true
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subView.bottomAnchor.constraint(equalTo: self.safeAreaLayoutGuide.bottomAnchor, constant: insets.bottom).isActive = true
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}
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@objc func vc_removeAllSubviews() {
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for subView in self.subviews {
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subView.removeFromSuperview()
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}
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}
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/// Shake the view to indicate an error
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@objc func vc_shake() {
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let shake = CABasicAnimation(keyPath: "position")
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let xDelta = CGFloat(10)
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shake.duration = 0.07
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shake.repeatCount = 2
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shake.autoreverses = true
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let fromPoint = CGPoint(x: center.x - xDelta, y: center.y)
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let toPoint = CGPoint(x: center.x + xDelta, y: center.y)
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shake.fromValue = NSValue(cgPoint: fromPoint)
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shake.toValue = NSValue(cgPoint: toPoint)
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shake.timingFunction = CAMediaTimingFunction(name: .easeOut)
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layer.add(shake, forKey: "position")
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}
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@objc func vc_setupAccessibilityTraitsButton(withTitle title: String, hint: String, isEnabled: Bool) {
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self.isAccessibilityElement = true
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self.accessibilityLabel = title
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self.accessibilityHint = hint
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self.accessibilityTraits = .button
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if !isEnabled {
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self.accessibilityTraits.insert(.notEnabled)
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}
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}
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@objc func vc_setupAccessibilityTraitsImage(withTitle title: String) {
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self.isAccessibilityElement = false
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self.accessibilityLabel = title
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self.accessibilityHint = nil
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self.accessibilityTraits = .image
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}
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@objc func vc_addShadow(withColor color: UIColor, offset: CGSize, radius: CGFloat, opacity: CGFloat) {
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layer.shadowColor = color.cgColor
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layer.shadowOpacity = Float(opacity)
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layer.shadowRadius = radius
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layer.shadowOffset = offset
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}
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@objc func vc_removeShadow() {
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layer.shadowColor = UIColor.clear.cgColor
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}
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}
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