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Peter
2016-11-02 03:14:54 +03:00
parent 6fbab164ed
commit 2b07ed38ed
27 changed files with 293 additions and 114 deletions
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16
TelegramUI/ChatListController.swift
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@@ -173,6 +173,14 @@ extension ChatListEntry: Identifiable {
}
}
private final class ChatListOpaqueTransactionState {
let chatListViewAndEntries: (ChatListView, [ChatListControllerEntry])
init(chatListViewAndEntries: (ChatListView, [ChatListControllerEntry])) {
self.chatListViewAndEntries = chatListViewAndEntries
}
}
public class ChatListController: ViewController {
let account: Account
@@ -209,7 +217,7 @@ public class ChatListController: ViewController {
self.scrollToTop = { [weak self] in
if let strongSelf = self {
if let (view, _) = strongSelf.chatListViewAndEntries, view.laterIndex == nil {
strongSelf.chatListDisplayNode.listView.deleteAndInsertItems(deleteIndices: [], insertIndicesAndItems: [], updateIndicesAndItems: [], options: [.Synchronous], scrollToItem: ListViewScrollToItem(index: 0, position: .Top, animated: true, curve: .Default, directionHint: .Up), updateSizeAndInsets: nil, stationaryItemRange: nil, completion: { _ in })
strongSelf.chatListDisplayNode.listView.transaction(deleteIndices: [], insertIndicesAndItems: [], updateIndicesAndItems: [], options: [.Synchronous], scrollToItem: ListViewScrollToItem(index: 0, position: .Top, animated: true, curve: .Default, directionHint: .Up), updateSizeAndInsets: nil, stationaryItemRange: nil, updateOpaqueState: nil, completion: { _ in })
} else {
strongSelf.setMessageViewPosition(.Around(index: MessageIndex.absoluteUpperBound(), anchorIndex: MessageIndex.absoluteUpperBound(), scrollPosition: .Top), hint: "later", force: true)
}
@@ -231,9 +239,9 @@ public class ChatListController: ViewController {
override public func loadDisplayNode() {
self.displayNode = ChatListControllerNode(account: self.account)
self.chatListDisplayNode.listView.displayedItemRangeChanged = { [weak self] range in
self.chatListDisplayNode.listView.displayedItemRangeChanged = { [weak self] range, transactionOpaqueState in
if let strongSelf = self, !strongSelf.settingView {
if let range = range.loadedRange, let (view, _) = strongSelf.chatListViewAndEntries {
if let range = range.loadedRange, let (view, _) = (transactionOpaqueState as? ChatListOpaqueTransactionState)?.chatListViewAndEntries {
if range.firstIndex < 5 && view.laterIndex != nil {
strongSelf.setMessageViewPosition(.Around(index: view.entries[view.entries.count - 1].index, anchorIndex: MessageIndex.absoluteUpperBound(), scrollPosition: nil), hint: "later", force: false)
} else if range.firstIndex >= 5 && range.lastIndex >= view.entries.count - 5 && view.earlierIndex != nil {
@@ -477,7 +485,7 @@ public class ChatListController: ViewController {
}
}
strongSelf.chatListDisplayNode.listView.deleteAndInsertItems(deleteIndices: adjustedDeleteIndices, insertIndicesAndItems: adjustedIndicesAndItems, updateIndicesAndItems: adjustedUpdateItems, options: options, scrollToItem: scrollToItem, completion: { [weak self] _ in
strongSelf.chatListDisplayNode.listView.transaction(deleteIndices: adjustedDeleteIndices, insertIndicesAndItems: adjustedIndicesAndItems, updateIndicesAndItems: adjustedUpdateItems, options: options, scrollToItem: scrollToItem, updateOpaqueState: ChatListOpaqueTransactionState(chatListViewAndEntries: (view, viewEntries)), completion: { [weak self] _ in
if let strongSelf = self {
strongSelf.ready.set(single(true, NoError.self))
strongSelf.settingView = false