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Code Issues 95 Packages Projects Releases 10 Wiki Activity

WIP: editable datasources

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This commit is contained in:
John Estropia
2019-10-11 07:47:49 +09:00
parent d5114fc4bc
commit 81dfb8e3e5
21 changed files with 1253 additions and 479 deletions
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95
Sources/Internals.FetchedDiffableDataSourceSnapshotDelegate.swift
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@@ -75,14 +75,14 @@ extension Internals {
internal func initialFetch() {
#if canImport(UIKit) || canImport(AppKit)
if #available(iOS 13.0, tvOS 13.0, watchOS 6.0, macOS 15.0, *) {
return
}
#endif
// #if canImport(UIKit) || canImport(AppKit)
//
// if #available(iOS 13.0, tvOS 13.0, watchOS 6.0, macOS 15.0, *) {
//
// return
// }
//
// #endif
guard let fetchedResultsController = self.fetchedResultsController else {
@@ -94,50 +94,65 @@ extension Internals {
// MARK: NSFetchedResultsControllerDelegate
#if canImport(UIKit) || canImport(AppKit)
@available(iOS 13.0, tvOS 13.0, watchOS 6.0, macOS 15.0, *)
@objc
dynamic func controller(_ controller: NSFetchedResultsController<NSFetchRequestResult>, didChangeContentWith snapshot: NSDiffableDataSourceSnapshotReference) {
self.handler?.controller(
controller,
didChangContentWith: snapshot as NSDiffableDataSourceSnapshot<NSString, NSManagedObjectID>
)
}
#endif
@objc
dynamic func controllerWillChangeContent(_ controller: NSFetchedResultsController<NSFetchRequestResult>) {
self.reloadedIDs = []
}
// #if canImport(UIKit) || canImport(AppKit)
//
// @available(iOS 13.0, tvOS 13.0, watchOS 6.0, macOS 15.0, *)
// @objc
// dynamic func controller(_ controller: NSFetchedResultsController<NSFetchRequestResult>, didChangeContentWith snapshot: NSDiffableDataSourceSnapshotReference) {
//
// self.handler?.controller(
// controller,
// didChangContentWith: snapshot as NSDiffableDataSourceSnapshot<NSString, NSManagedObjectID>
// )
// }
//
// #endif
@objc
dynamic func controllerDidChangeContent(_ controller: NSFetchedResultsController<NSFetchRequestResult>) {
let nextStateTag: UUID = .init()
var dataSourceSnapshot = Internals.DiffableDataSourceSnapshot(
sections: controller.sections ?? [],
previousStateTag: self.previousStateTag,
nextStateTag: nextStateTag
)
dataSourceSnapshot.reloadItems(self.reloadedItemIDs, nextStateTag: nextStateTag)
dataSourceSnapshot.reloadSections(self.reloadedSectionIDs, nextStateTag: nextStateTag)
self.handler?.controller(
controller,
didChangContentWith: FallbackDiffableDataSourceSnapshot(
sections: controller.sections ?? []
)
didChangContentWith: dataSourceSnapshot
)
self.reloadedIDs = []
self.previousStateTag = nextStateTag
}
// @objc
// dynamic func controller(_ controller: NSFetchedResultsController<NSFetchRequestResult>, didChange anObject: Any, at indexPath: IndexPath?, for type: NSFetchedResultsChangeType, newIndexPath: IndexPath?) {
//
//
//// [1].difference(from: <#T##BidirectionalCollection#>)
// let managedObject = anObject as! NSManagedObject
// self.reloadedIDs.insert(managedObject.objectID)
// }
@objc
dynamic func controller(_ controller: NSFetchedResultsController<NSFetchRequestResult>, didChange anObject: Any, at indexPath: IndexPath?, for type: NSFetchedResultsChangeType, newIndexPath: IndexPath?) {
let managedObject = anObject as! NSManagedObject
self.reloadedItemIDs.insert(managedObject.objectID)
}
@objc
dynamic func controller(_ controller: NSFetchedResultsController<NSFetchRequestResult>, didChange sectionInfo: NSFetchedResultsSectionInfo, atSectionIndex sectionIndex: Int, for type: NSFetchedResultsChangeType) {
self.reloadedSectionIDs.insert(sectionInfo.name)
}
// MARK: Private
private var reloadedIDs: Set<NSManagedObjectID> = []
private var previousStateTag: UUID = .init() {
didSet {
self.reloadedItemIDs = []
self.reloadedSectionIDs = []
}
}
private var reloadedItemIDs: Set<NSManagedObjectID> = []
private var reloadedSectionIDs: Set<String> = []
}
}