element-ios/Riot/Categories/UIView.swift

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