136 lines
3.2 KiB
Swift
136 lines
3.2 KiB
Swift
//
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// Copyright (c) 2021 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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@objc
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open class OWSLayerView: UIView {
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@objc
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public var shouldAnimate = true
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@objc
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public var layoutCallback: (UIView) -> Void
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public typealias TapBlock = () -> Void
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private var tapBlock: TapBlock?
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@objc
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public init() {
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self.layoutCallback = { (_) in
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}
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super.init(frame: .zero)
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}
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@objc
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public init(frame: CGRect, layoutCallback : @escaping (UIView) -> Void) {
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self.layoutCallback = layoutCallback
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super.init(frame: frame)
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}
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public required init?(coder aDecoder: NSCoder) {
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self.layoutCallback = { _ in
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}
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super.init(coder: aDecoder)
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}
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@objc
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public static func circleView() -> OWSLayerView {
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circleView(size: nil)
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}
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public static func circleView(size: CGFloat? = nil) -> OWSLayerView {
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let result = OWSLayerView(frame: .zero) { view in
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view.layer.cornerRadius = min(view.width, view.height) * 0.5
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}
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if let size = size {
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result.autoSetDimensions(to: CGSize.square(size))
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}
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return result
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}
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@objc
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public static func pillView() -> OWSLayerView {
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pillView(height: nil)
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}
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public static func pillView(height: CGFloat? = nil) -> OWSLayerView {
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let result = OWSLayerView(frame: .zero) { view in
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view.layer.cornerRadius = min(view.width, view.height) * 0.5
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}
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if let height = height {
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result.autoSetDimension(.height, toSize: height)
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}
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return result
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}
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public override var bounds: CGRect {
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didSet {
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if oldValue != bounds {
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layoutSubviews()
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}
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}
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}
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public override var frame: CGRect {
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didSet {
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if oldValue != frame {
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layoutSubviews()
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}
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}
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}
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public override var center: CGPoint {
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didSet {
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if oldValue != center {
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layoutSubviews()
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}
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}
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}
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public override func layoutSubviews() {
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super.layoutSubviews()
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layoutCallback(self)
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}
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public func updateContent() {
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if shouldAnimate {
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layoutSubviews()
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} else {
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CATransaction.begin()
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CATransaction.setDisableActions(true)
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layoutSubviews()
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CATransaction.commit()
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}
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}
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public func addTapGesture(_ tapBlock: @escaping TapBlock) {
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self.tapBlock = tapBlock
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isUserInteractionEnabled = true
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addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(didTap)))
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}
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@objc
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private func didTap() {
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guard let tapBlock = tapBlock else {
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owsFailDebug("Missing tapBlock.")
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return
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}
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tapBlock()
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}
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public func reset() {
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removeAllSubviews()
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self.layoutCallback = { _ in }
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self.tapBlock = nil
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if let gestureRecognizers = self.gestureRecognizers {
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for gestureRecognizer in gestureRecognizers {
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removeGestureRecognizer(gestureRecognizer)
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}
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}
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}
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}
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