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Merge branch 'bugfix/CXTDT-530193' into 'release/11_4_0'

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CXTDT-530193

### Summary
Hide and show the carousel pager based upon the content size.

### JIRA Ticket
https://onejira.verizon.com/browse/CXTDT-530193

Co-authored-by: Hedden, Kyle Matthew <kyle.hedden@verizonwireless.com>

See merge request https://gitlab.verizon.com/BPHV_MIPS/mvm_core_ui/-/merge_requests/1067
This commit is contained in:
Pfeil, Scott Robert 2024-03-11 18:42:32 +00:00
commit 1f2753e9d7
1 changed files with 19 additions and 5 deletions
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24
MVMCoreUI/Atomic/Organisms/Carousel/Carousel.swift
View File

@ -55,6 +55,9 @@ open class Carousel: View {
/// The view that we use for paging
public var pagingView: (MoleculeViewProtocol & CarouselPageControlProtocol)?
/// The pagingView anchor to the bottom of the carousel. Disabled when the pagingView is hidden.
public var pagingBottomPin: NSLayoutConstraint?
/// If the carousel should loop after scrolling past the first and final cells.
public var loop = false
@ -89,10 +92,10 @@ open class Carousel: View {
// Go to current cell. layoutIfNeeded is needed otherwise cellForItem returns nil for peaking logic. The dispatch is a sad way to ensure the collection view is ready to be scrolled.
guard let model = model as? CarouselModel, !model.molecules.isEmpty,
(model.paging == true || loop == true) else { return }
DispatchQueue.main.async {
self.collectionView.scrollToItem(at: IndexPath(row: self.currentIndex, section: 0), at: self.itemAlignment, animated: false)
self.collectionView.layoutIfNeeded()
self.showPeaking(true)
DispatchQueue.main.async { [self] in
collectionView.scrollToItem(at: IndexPath(row: currentIndex, section: 0), at: itemAlignment, animated: false)
collectionView.layoutIfNeeded()
showPeaking(true)
}
}
@ -137,6 +140,16 @@ open class Carousel: View {
(cell as? MVMCoreViewProtocol)?.updateView(size)
}
layoutCollection()
// Check must be dispatched to main for the layout to complete in layoutCollection.
DispatchQueue.main.async { [self] in
let shouldHidePager = molecules?.count ?? 0 < 2 || collectionView.contentSize.width < bounds.width
if let pagingView = pagingView, shouldHidePager != pagingView.isHidden {
pagingView.isHidden = shouldHidePager
pagingBottomPin?.isActive = !shouldHidePager
delegateObject?.moleculeDelegate?.moleculeLayoutUpdated(self)
}
}
}
//--------------------------------------------------
@ -276,7 +289,8 @@ open class Carousel: View {
addSubview(pagingView)
pagingView.centerXAnchor.constraint(equalTo: collectionView.centerXAnchor).isActive = true
collectionView.bottomAnchor.constraint(equalTo: pagingView.centerYAnchor, constant: position).isActive = true
bottomAnchor.constraint(greaterThanOrEqualTo: pagingView.bottomAnchor).isActive = true
pagingBottomPin = bottomAnchor.constraint(greaterThanOrEqualTo: pagingView.bottomAnchor)
pagingBottomPin?.isActive = true
bottomPin = bottomAnchor.constraint(equalTo: collectionView.bottomAnchor)
bottomPin?.priority = .defaultLow
bottomPin?.isActive = true