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Implement account specific drag and drop behaviors for iOS

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This commit is contained in:
Maurice Parker
2020-10-31 20:14:50 -05:00
parent 53048ea0a0
commit 75fb3fa5fb
2 changed files with 29 additions and 0 deletions
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14
iOS/MasterFeed/MasterFeedViewController+Drop.swift
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@@ -22,10 +22,24 @@ extension MasterFeedViewController: UITableViewDropDelegate {
destIndexPath.section > 0,
tableView.hasActiveDrag,
let destIdentifier = dataSource.itemIdentifier(for: destIndexPath),
let destAccount = destIdentifier.account,
let destCell = tableView.cellForRow(at: destIndexPath) else {
return UITableViewDropProposal(operation: .forbidden)
}
// Validate account specific behaviors...
if destAccount.behaviors.contains(.disallowFeedInRootFolder) && destIdentifier.isAccount {
return UITableViewDropProposal(operation: .forbidden)
}
if destAccount.behaviors.contains(.disallowFeedInMultipleFolders),
let sourceFeedID = (session.localDragSession?.items.first?.localObject as? MasterFeedTableViewIdentifier)?.feedID,
let sourceWebFeed = AccountManager.shared.existingFeed(with: sourceFeedID) as? WebFeed,
sourceWebFeed.account?.accountID != destAccount.accountID && destAccount.hasWebFeed(withURL: sourceWebFeed.url) {
return UITableViewDropProposal(operation: .forbidden)
}
// Determine the correct drop proposal
if destIdentifier.isFolder {
if session.location(in: destCell).y >= 0 {
return UITableViewDropProposal(operation: .move, intent: .insertIntoDestinationIndexPath)