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Add toggle pagination support to games view #376

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Add toggle pagination support to games view #376

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19 changes: 18 additions & 1 deletion Delta/Game Selection/GamesViewController.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,7 @@ class GamesViewController: UIViewController
private var pageViewController: UIPageViewController!
private var placeholderView: RSTPlaceholderView!
private var pageControl: UIPageControl!
private var lastSelectedPageIndex: Int = 0

private let fetchedResultsController: NSFetchedResultsController<NSFetchRequestResult>

Expand Down Expand Up @@ -114,6 +115,7 @@ extension GamesViewController

self.pageControl.centerXAnchor.constraint(equalTo: (self.navigationController?.toolbar.centerXAnchor)!, constant: 0).isActive = true
self.pageControl.centerYAnchor.constraint(equalTo: (self.navigationController?.toolbar.centerYAnchor)!, constant: 0).isActive = true
self.pageControl.addTarget(self, action: #selector(pageControlTapped(_:)), for: .valueChanged)

if let navigationController = self.navigationController
{
Expand Down Expand Up @@ -322,12 +324,14 @@ private extension GamesViewController
if let index = self.fetchedResultsController.fetchedObjects?.firstIndex(where: { $0 as! GameCollection == gameCollection })
{
self.pageControl.currentPage = index
self.lastSelectedPageIndex = index
}
else
{
resetPageViewController = true

self.pageControl.currentPage = 0
self.lastSelectedPageIndex = 0
}

}
Expand All @@ -353,6 +357,8 @@ private extension GamesViewController
index = gameCollectionIndex
}
}

self.lastSelectedPageIndex = index

if let viewController = self.viewControllerForIndex(index)
{
Expand Down Expand Up @@ -380,7 +386,18 @@ private extension GamesViewController
self.placeholderView.setHidden(false, animated: animated)
}
}


@objc func pageControlTapped(_ sender: UIPageControl) {
let direction: UIPageViewController.NavigationDirection = (sender.currentPage > self.lastSelectedPageIndex) ? .forward : .reverse
self.lastSelectedPageIndex = self.pageControl.currentPage

guard let nextViewController = self.viewControllerForIndex(sender.currentPage) else { return }
self.pageViewController.setViewControllers([nextViewController], direction: direction, animated: true) { [weak self] completed in
guard let self = self else { return }
self.pageViewController(self.pageViewController, didFinishAnimating: true, previousViewControllers: [nextViewController], transitionCompleted: true)
}
}

@objc func openFAQ()
{
let faqURL = URL(string: "https://faq.deltaemulator.com/getting-started/importing-games")!
Expand Down