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Ali
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import Foundation
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import UIKit
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import AsyncDisplayKit
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import Postbox
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import TelegramCore
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import SyncCore
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import Display
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import TelegramPresentationData
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import TelegramUIPreferences
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import MergeLists
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import TextFormat
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import AccountContext
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import LocalizedPeerData
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import ItemListUI
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private struct MentionChatInputContextPanelEntry: Comparable, Identifiable {
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let index: Int
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let peer: Peer
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let revealed: Bool
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var stableId: Int64 {
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return self.peer.id.toInt64()
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}
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static func ==(lhs: MentionChatInputContextPanelEntry, rhs: MentionChatInputContextPanelEntry) -> Bool {
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return lhs.index == rhs.index && lhs.peer.isEqual(rhs.peer) && lhs.revealed == rhs.revealed
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}
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static func <(lhs: MentionChatInputContextPanelEntry, rhs: MentionChatInputContextPanelEntry) -> Bool {
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return lhs.index < rhs.index
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}
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func item(context: AccountContext, presentationData: PresentationData, inverted: Bool, setPeerIdRevealed: @escaping (PeerId?) -> Void, peerSelected: @escaping (Peer) -> Void, removeRequested: @escaping (PeerId) -> Void) -> ListViewItem {
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return MentionChatInputPanelItem(context: context, presentationData: ItemListPresentationData(presentationData), inverted: inverted, peer: self.peer, revealed: self.revealed, setPeerIdRevealed: setPeerIdRevealed, peerSelected: peerSelected, removeRequested: removeRequested)
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}
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}
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private struct CommandChatInputContextPanelTransition {
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let deletions: [ListViewDeleteItem]
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let insertions: [ListViewInsertItem]
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let updates: [ListViewUpdateItem]
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}
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private func preparedTransition(from fromEntries: [MentionChatInputContextPanelEntry], to toEntries: [MentionChatInputContextPanelEntry], context: AccountContext, presentationData: PresentationData, inverted: Bool, forceUpdate: Bool, setPeerIdRevealed: @escaping (PeerId?) -> Void, peerSelected: @escaping (Peer) -> Void, removeRequested: @escaping (PeerId) -> Void) -> CommandChatInputContextPanelTransition {
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let (deleteIndices, indicesAndItems, updateIndices) = mergeListsStableWithUpdates(leftList: fromEntries, rightList: toEntries, allUpdated: forceUpdate)
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let deletions = deleteIndices.map { ListViewDeleteItem(index: $0, directionHint: nil) }
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let insertions = indicesAndItems.map { ListViewInsertItem(index: $0.0, previousIndex: $0.2, item: $0.1.item(context: context, presentationData: presentationData, inverted: inverted, setPeerIdRevealed: setPeerIdRevealed, peerSelected: peerSelected, removeRequested: removeRequested), directionHint: nil) }
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let updates = updateIndices.map { ListViewUpdateItem(index: $0.0, previousIndex: $0.2, item: $0.1.item(context: context, presentationData: presentationData, inverted: inverted, setPeerIdRevealed: setPeerIdRevealed, peerSelected: peerSelected, removeRequested: removeRequested), directionHint: nil) }
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return CommandChatInputContextPanelTransition(deletions: deletions, insertions: insertions, updates: updates)
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}
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enum MentionChatInputContextPanelMode {
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case input
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case search
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}
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final class MentionChatInputContextPanelNode: ChatInputContextPanelNode {
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let mode: MentionChatInputContextPanelMode
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private let listView: ListView
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private var currentEntries: [MentionChatInputContextPanelEntry]?
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private var currentResults: [Peer] = []
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private var revealedPeerId: PeerId?
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private var enqueuedTransitions: [(CommandChatInputContextPanelTransition, Bool)] = []
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private var validLayout: (CGSize, CGFloat, CGFloat, CGFloat)?
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init(context: AccountContext, theme: PresentationTheme, strings: PresentationStrings, fontSize: PresentationFontSize, mode: MentionChatInputContextPanelMode) {
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self.mode = mode
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self.listView = ListView()
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self.listView.isOpaque = false
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self.listView.stackFromBottom = true
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self.listView.keepBottomItemOverscrollBackground = theme.list.plainBackgroundColor
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self.listView.limitHitTestToNodes = true
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self.listView.view.disablesInteractiveTransitionGestureRecognizer = true
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super.init(context: context, theme: theme, strings: strings, fontSize: fontSize)
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self.isOpaque = false
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self.clipsToBounds = true
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self.addSubnode(self.listView)
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if mode == .search {
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self.transform = CATransform3DMakeRotation(CGFloat(Double.pi), 0.0, 0.0, 1.0)
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}
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}
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func updateResults(_ results: [Peer]) {
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self.currentResults = results
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var entries: [MentionChatInputContextPanelEntry] = []
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var index = 0
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var peerIdSet = Set<Int64>()
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for peer in results {
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let peerId = peer.id.toInt64()
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if peerIdSet.contains(peerId) {
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continue
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}
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peerIdSet.insert(peerId)
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entries.append(MentionChatInputContextPanelEntry(index: index, peer: peer, revealed: self.revealedPeerId == peer.id))
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index += 1
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}
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self.updateToEntries(entries: entries, forceUpdate: false)
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}
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private func updateToEntries(entries: [MentionChatInputContextPanelEntry], forceUpdate: Bool) {
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let firstTime = self.currentEntries == nil
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let presentationData = self.context.sharedContext.currentPresentationData.with { $0 }
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let transition = preparedTransition(from: self.currentEntries ?? [], to: entries, context: self.context, presentationData: presentationData, inverted: self.mode == .search, forceUpdate: forceUpdate, setPeerIdRevealed: { [weak self] peerId in
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if let strongSelf = self {
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strongSelf.revealedPeerId = peerId
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strongSelf.updateResults(strongSelf.currentResults)
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}
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}, peerSelected: { [weak self] peer in
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if let strongSelf = self, let interfaceInteraction = strongSelf.interfaceInteraction {
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switch strongSelf.mode {
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case .input:
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interfaceInteraction.updateTextInputStateAndMode { textInputState, inputMode in
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var mentionQueryRange: NSRange?
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inner: for (range, type, _) in textInputStateContextQueryRangeAndType(textInputState) {
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if type == [.mention] {
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mentionQueryRange = range
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break inner
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}
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}
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if let range = mentionQueryRange {
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let inputText = NSMutableAttributedString(attributedString: textInputState.inputText)
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if let addressName = peer.addressName, !addressName.isEmpty {
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let replacementText = addressName + " "
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inputText.replaceCharacters(in: range, with: replacementText)
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let selectionPosition = range.lowerBound + (replacementText as NSString).length
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return (ChatTextInputState(inputText: inputText, selectionRange: selectionPosition ..< selectionPosition), inputMode)
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} else if !peer.compactDisplayTitle.isEmpty {
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let replacementText = NSMutableAttributedString()
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replacementText.append(NSAttributedString(string: peer.compactDisplayTitle, attributes: [ChatTextInputAttributes.textMention: ChatTextInputTextMentionAttribute(peerId: peer.id)]))
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replacementText.append(NSAttributedString(string: " "))
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let updatedRange = NSRange(location: range.location - 1, length: range.length + 1)
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inputText.replaceCharacters(in: updatedRange, with: replacementText)
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let selectionPosition = updatedRange.lowerBound + replacementText.length
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return (ChatTextInputState(inputText: inputText, selectionRange: selectionPosition ..< selectionPosition), inputMode)
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}
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}
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return (textInputState, inputMode)
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}
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case .search:
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interfaceInteraction.beginMessageSearch(.member(peer), "")
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}
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}
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}, removeRequested: { [weak self] peerId in
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if let strongSelf = self {
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let _ = removeRecentlyUsedInlineBot(account: strongSelf.context.account, peerId: peerId).start()
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strongSelf.revealedPeerId = nil
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strongSelf.currentResults = strongSelf.currentResults.filter { $0.id != peerId }
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strongSelf.updateResults(strongSelf.currentResults)
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}
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})
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self.currentEntries = entries
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self.enqueueTransition(transition, firstTime: firstTime)
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}
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private func enqueueTransition(_ transition: CommandChatInputContextPanelTransition, firstTime: Bool) {
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enqueuedTransitions.append((transition, firstTime))
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if self.validLayout != nil {
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while !self.enqueuedTransitions.isEmpty {
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self.dequeueTransition()
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}
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}
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}
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private func dequeueTransition() {
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if let validLayout = self.validLayout, let (transition, firstTime) = self.enqueuedTransitions.first {
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self.enqueuedTransitions.remove(at: 0)
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var options = ListViewDeleteAndInsertOptions()
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if firstTime {
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//options.insert(.Synchronous)
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//options.insert(.LowLatency)
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} else {
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options.insert(.AnimateTopItemPosition)
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options.insert(.AnimateCrossfade)
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}
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var insets = UIEdgeInsets()
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insets.top = topInsetForLayout(size: validLayout.0)
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insets.left = validLayout.1
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insets.right = validLayout.2
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let updateSizeAndInsets = ListViewUpdateSizeAndInsets(size: validLayout.0, insets: insets, duration: 0.0, curve: .Default(duration: nil))
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self.listView.transaction(deleteIndices: transition.deletions, insertIndicesAndItems: transition.insertions, updateIndicesAndItems: transition.updates, options: options, updateSizeAndInsets: updateSizeAndInsets, updateOpaqueState: nil, completion: { [weak self] _ in
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if let strongSelf = self, firstTime {
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var topItemOffset: CGFloat?
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strongSelf.listView.forEachItemNode { itemNode in
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if topItemOffset == nil {
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topItemOffset = itemNode.frame.minY
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}
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}
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if let topItemOffset = topItemOffset {
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let position = strongSelf.listView.layer.position
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strongSelf.listView.layer.animatePosition(from: CGPoint(x: position.x, y: position.y + (strongSelf.listView.bounds.size.height - topItemOffset)), to: position, duration: 0.3, timingFunction: kCAMediaTimingFunctionSpring)
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}
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}
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})
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}
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}
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private func topInsetForLayout(size: CGSize) -> CGFloat {
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var minimumItemHeights: CGFloat = floor(MentionChatInputPanelItemNode.itemHeight * 3.5)
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return max(size.height - minimumItemHeights, 0.0)
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}
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override func updateLayout(size: CGSize, leftInset: CGFloat, rightInset: CGFloat, bottomInset: CGFloat, transition: ContainedViewLayoutTransition, interfaceState: ChatPresentationInterfaceState) {
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let hadValidLayout = self.validLayout != nil
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self.validLayout = (size, leftInset, rightInset, bottomInset)
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if self.theme !== interfaceState.theme {
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self.theme = interfaceState.theme
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self.listView.keepBottomItemOverscrollBackground = self.theme.list.plainBackgroundColor
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if let currentEntries = self.currentEntries {
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self.updateToEntries(entries: currentEntries, forceUpdate: true)
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}
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}
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var insets = UIEdgeInsets()
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insets.top = topInsetForLayout(size: size)
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insets.left = leftInset
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insets.right = rightInset
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transition.updateFrame(node: self.listView, frame: CGRect(x: 0.0, y: 0.0, width: size.width, height: size.height))
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let (duration, curve) = listViewAnimationDurationAndCurve(transition: transition)
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let updateSizeAndInsets = ListViewUpdateSizeAndInsets(size: size, insets: insets, duration: duration, curve: curve)
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self.listView.transaction(deleteIndices: [], insertIndicesAndItems: [], updateIndicesAndItems: [], options: [.Synchronous, .LowLatency], scrollToItem: nil, updateSizeAndInsets: updateSizeAndInsets, stationaryItemRange: nil, updateOpaqueState: nil, completion: { _ in })
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if !hadValidLayout {
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while !self.enqueuedTransitions.isEmpty {
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self.dequeueTransition()
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}
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}
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}
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override func animateOut(completion: @escaping () -> Void) {
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var topItemOffset: CGFloat?
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self.listView.forEachItemNode { itemNode in
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if topItemOffset == nil {
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topItemOffset = itemNode.frame.minY
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}
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}
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if let topItemOffset = topItemOffset {
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let position = self.listView.layer.position
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self.listView.layer.animatePosition(from: position, to: CGPoint(x: position.x, y: position.y + (self.listView.bounds.size.height - topItemOffset)), duration: 0.3, timingFunction: kCAMediaTimingFunctionSpring, removeOnCompletion: false, completion: { _ in
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completion()
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})
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} else {
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completion()
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}
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}
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override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
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let listViewFrame = self.listView.frame
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return self.listView.hitTest(CGPoint(x: point.x - listViewFrame.minX, y: point.y - listViewFrame.minY), with: event)
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}
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}
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