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Optimize table cell loading so that we are no longer reloading all visible cells when an image is downloaded

This commit is contained in:
Maurice Parker 2019-08-21 19:37:19 -05:00
parent af98311c63
commit c752d0b699
1 changed files with 18 additions and 16 deletions
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32
iOS/MasterTimeline/MasterTimelineViewController.swift
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@ -33,8 +33,7 @@ class MasterTimelineViewController: UITableViewController, UndoableCommandRunner
NotificationCenter.default.addObserver(self, selector: #selector(statusesDidChange(_:)), name: .StatusesDidChange, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(feedIconDidBecomeAvailable(_:)), name: .FeedIconDidBecomeAvailable, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(avatarDidBecomeAvailable(_:)), name: .AvatarDidBecomeAvailable, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(imageDidBecomeAvailable(_:)), name: .ImageDidBecomeAvailable, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(imageDidBecomeAvailable(_:)), name: .FaviconDidBecomeAvailable, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(faviconDidBecomeAvailable(_:)), name: .FaviconDidBecomeAvailable, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(userDefaultsDidChange(_:)), name: UserDefaults.didChangeNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(progressDidChange(_:)), name: .AccountRefreshProgressDidChange, object: nil)
@ -250,7 +249,6 @@ class MasterTimelineViewController: UITableViewController, UndoableCommandRunner
}
@objc func statusesDidChange(_ note: Notification) {
guard let articles = note.userInfo?[Account.UserInfoKey.articles] as? Set<Article> else {
return
}
@ -258,55 +256,59 @@ class MasterTimelineViewController: UITableViewController, UndoableCommandRunner
}
@objc func feedIconDidBecomeAvailable(_ note: Notification) {
guard let feed = note.userInfo?[UserInfoKey.feed] as? Feed else {
return
}
performBlockAndRestoreSelection {
tableView.indexPathsForVisibleRows?.forEach { indexPath in
guard let article = coordinator.articles.articleAtRow(indexPath.row) else {
return
}
if feed == article.feed {
tableView.reloadRows(at: [indexPath], with: .none)
return
}
}
}
}
@objc func avatarDidBecomeAvailable(_ note: Notification) {
guard coordinator.showAvatars, let avatarURL = note.userInfo?[UserInfoKey.url] as? String else {
return
}
performBlockAndRestoreSelection {
tableView.indexPathsForVisibleRows?.forEach { indexPath in
guard let article = coordinator.articles.articleAtRow(indexPath.row), let authors = article.authors, !authors.isEmpty else {
return
}
for author in authors {
if author.avatarURL == avatarURL {
tableView.reloadRows(at: [indexPath], with: .none)
}
}
}
}
}
@objc func faviconDidBecomeAvailable(_ note: Notification) {
guard coordinator.showAvatars, let faviconURL = note.userInfo?["faviconURL"] as? String else {
return
}
@objc func imageDidBecomeAvailable(_ note: Notification) {
if coordinator.showAvatars {
queueReloadVisableCells()
performBlockAndRestoreSelection {
tableView.indexPathsForVisibleRows?.forEach { indexPath in
guard let article = coordinator.articles.articleAtRow(indexPath.row), let articleFaviconURL = article.feed?.faviconURL else {
return
}
if faviconURL == articleFaviconURL {
tableView.reloadRows(at: [indexPath], with: .none)
return
}
}
}
}