Merge branch 'test/cv' into mbruce/bugfixes
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commit
5f0ee106e0
@ -7,6 +7,7 @@
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import Foundation
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import Foundation
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import UIKit
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import UIKit
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import Combine
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/// UICollectionView subclassed to deal with Changing the size of itself based on its children and layout and changes of its contentSize.
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/// UICollectionView subclassed to deal with Changing the size of itself based on its children and layout and changes of its contentSize.
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@objc(VDSSelfSizingCollectionView)
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@objc(VDSSelfSizingCollectionView)
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@ -34,10 +35,13 @@ public final class SelfSizingCollectionView: UICollectionView {
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// MARK: - Private Properties
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// MARK: - Private Properties
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//--------------------------------------------------
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//--------------------------------------------------
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private var contentSizeObservation: NSKeyValueObservation?
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private var contentSizeObservation: NSKeyValueObservation?
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private var collectionViewHeight: NSLayoutConstraint?
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private var anyCancellable: AnyCancellable?
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//--------------------------------------------------
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//--------------------------------------------------
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// MARK: - Overrides
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// MARK: - Overrides
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//--------------------------------------------------
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//--------------------------------------------------
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/// The natural size for the receiving view, considering only properties of the view itself.
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/// The natural size for the receiving view, considering only properties of the view itself.
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public override var intrinsicContentSize: CGSize {
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public override var intrinsicContentSize: CGSize {
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let contentSize = self.contentSize
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let contentSize = self.contentSize
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@ -63,12 +67,16 @@ public final class SelfSizingCollectionView: UICollectionView {
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//ensure autoLayout uses intrinsic height
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//ensure autoLayout uses intrinsic height
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setContentHuggingPriority(.required, for: .vertical)
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setContentHuggingPriority(.required, for: .vertical)
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setContentCompressionResistancePriority(.required, for: .vertical)
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setContentCompressionResistancePriority(.required, for: .vertical)
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collectionViewHeight = heightAnchor.constraint(equalToConstant: 0).activate()
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// Observing the value of contentSize seems to be the only reliable way to get the contentSize after the collection view lays out its subviews.
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// Observing the value of contentSize seems to be the only reliable way to get the contentSize after the collection view lays out its subviews.
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self.contentSizeObservation = self.observe(\.contentSize, options: [.old, .new]) { [weak self] _, change in
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self.contentSizeObservation = self.observe(\.contentSize, options: [.old, .new]) { [weak self] _, change in
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// If we don't specify `options: [.old, .new]`, the change.oldValue and .newValue will always be `nil`.
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// If we don't specify `options: [.old, .new]`, the change.oldValue and .newValue will always be `nil`.
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if change.newValue != change.oldValue {
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if change.newValue != change.oldValue {
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self?.invalidateIntrinsicContentSize()
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self?.invalidateIntrinsicContentSize()
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if let height = change.newValue?.height {
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self?.collectionViewHeight?.constant = height
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}
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}
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}
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}
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}
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}
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}
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@ -103,7 +103,6 @@ open class ButtonGroup: View {
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//--------------------------------------------------
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//--------------------------------------------------
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// MARK: - Private Properties
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// MARK: - Private Properties
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//--------------------------------------------------
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//--------------------------------------------------
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fileprivate var collectionViewHeight: NSLayoutConstraint?
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fileprivate lazy var positionLayout = ButtonGroupPositionLayout().with {
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fileprivate lazy var positionLayout = ButtonGroupPositionLayout().with {
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$0.position = .center
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$0.position = .center
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@ -132,8 +131,6 @@ open class ButtonGroup: View {
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super.setup()
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super.setup()
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addSubview(collectionView)
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addSubview(collectionView)
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collectionView.pinToSuperView()
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collectionView.pinToSuperView()
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collectionViewHeight = heightAnchor.constraint(equalToConstant: VDS.Button.Size.large.height)
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collectionViewHeight?.activate()
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}
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}
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//--------------------------------------------------
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//--------------------------------------------------
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@ -184,7 +181,6 @@ open class ButtonGroup: View {
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DispatchQueue.main.async { [weak self] in
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DispatchQueue.main.async { [weak self] in
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guard let self else { return }
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guard let self else { return }
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self.collectionView.collectionViewLayout.invalidateLayout()
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self.collectionView.collectionViewLayout.invalidateLayout()
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self.collectionViewHeight?.constant = self.collectionView.intrinsicContentSize.height
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}
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}
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}
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}
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}
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}
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