mirror of
https://github.com/Swiftgram/Telegram-iOS.git
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336 lines
15 KiB
Swift
336 lines
15 KiB
Swift
import AsyncDisplayKit
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import Display
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import TelegramCore
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import SwiftSignalKit
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import Postbox
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import TelegramPresentationData
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import AccountContext
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import ContextUI
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import PhotoResources
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import TelegramUIPreferences
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import ItemListPeerItem
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import ItemListPeerActionItem
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import MergeLists
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import ItemListUI
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import PeerInfoVisualMediaPaneNode
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private struct PeerMembersListTransaction {
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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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let animated: Bool
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}
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enum PeerMembersListAction {
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case open
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case promote
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case restrict
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case remove
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case openStories(sourceView: UIView)
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}
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private enum PeerMembersListEntryStableId: Hashable {
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case addMember
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case peer(PeerId)
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}
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private enum PeerMembersListEntry: Comparable, Identifiable {
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case addMember(PresentationTheme, String)
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case member(theme: PresentationTheme, index: Int, member: PeerInfoMember)
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var stableId: PeerMembersListEntryStableId {
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switch self {
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case .addMember:
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return .addMember
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case let .member(_, _, member):
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return .peer(member.id)
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}
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}
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static func ==(lhs: PeerMembersListEntry, rhs: PeerMembersListEntry) -> Bool {
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switch lhs {
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case let .addMember(lhsTheme, lhsText):
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if case let .addMember(rhsTheme, rhsText) = rhs, lhsTheme === rhsTheme, lhsText == rhsText {
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return true
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} else {
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return false
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}
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case let .member(lhsTheme, lhsIndex, lhsMember):
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if case let .member(rhsTheme, rhsIndex, rhsMember) = rhs, lhsTheme === rhsTheme, lhsIndex == rhsIndex, lhsMember == rhsMember {
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return true
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} else {
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return false
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}
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}
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}
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static func <(lhs: PeerMembersListEntry, rhs: PeerMembersListEntry) -> Bool {
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switch lhs {
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case .addMember:
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switch rhs {
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case .addMember:
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return false
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case .member:
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return true
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}
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case let .member(_, lhsIndex, _):
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switch rhs {
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case .addMember:
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return false
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case let .member(_, rhsIndex, _):
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return lhsIndex < rhsIndex
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}
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}
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}
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func item(context: AccountContext, presentationData: PresentationData, enclosingPeer: Peer, addMemberAction: @escaping () -> Void, action: @escaping (PeerInfoMember, PeerMembersListAction) -> Void) -> ListViewItem {
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switch self {
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case let .addMember(_, text):
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return ItemListPeerActionItem(presentationData: ItemListPresentationData(presentationData), icon: PresentationResourcesItemList.addPersonIcon(presentationData.theme), title: text, alwaysPlain: true, sectionId: 0, height: .compactPeerList, color: .accent, editing: false, action: {
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addMemberAction()
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})
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case let .member(_, _, member):
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let label: String?
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if let rank = member.rank {
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label = rank
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} else {
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switch member.role {
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case .creator:
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label = presentationData.strings.GroupInfo_LabelOwner
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case .admin:
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label = presentationData.strings.GroupInfo_LabelAdmin
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case .member:
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label = nil
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}
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}
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let actions = availableActionsForMemberOfPeer(accountPeerId: context.account.peerId, peer: enclosingPeer, member: member)
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var options: [ItemListPeerItemRevealOption] = []
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if actions.contains(.promote) && enclosingPeer is TelegramChannel{
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options.append(ItemListPeerItemRevealOption(type: .neutral, title: presentationData.strings.GroupInfo_ActionPromote, action: {
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action(member, .promote)
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}))
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}
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if actions.contains(.restrict) {
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if enclosingPeer is TelegramChannel {
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options.append(ItemListPeerItemRevealOption(type: .warning, title: presentationData.strings.GroupInfo_ActionRestrict, action: {
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action(member, .restrict)
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}))
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}
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options.append(ItemListPeerItemRevealOption(type: .destructive, title: presentationData.strings.Common_Delete, action: {
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action(member, .remove)
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}))
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}
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return ItemListPeerItem(presentationData: ItemListPresentationData(presentationData), dateTimeFormat: presentationData.dateTimeFormat, nameDisplayOrder: presentationData.nameDisplayOrder, context: context, peer: EnginePeer(member.peer), presence: member.presence.flatMap(EnginePeer.Presence.init), text: .presence, label: label == nil ? .none : .text(label!, .standard), editing: ItemListPeerItemEditing(editable: !options.isEmpty, editing: false, revealed: false), revealOptions: ItemListPeerItemRevealOptions(options: options), switchValue: nil, enabled: true, selectable: member.id != context.account.peerId, sectionId: 0, action: {
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action(member, .open)
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}, setPeerIdWithRevealedOptions: { _, _ in
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}, removePeer: { _ in
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}, contextAction: nil, hasTopStripe: false, noInsets: true, noCorners: true, disableInteractiveTransitionIfNecessary: true, storyStats: member.storyStats, openStories: { sourceView in
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action(member, .openStories(sourceView: sourceView))
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})
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}
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}
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}
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private func preparedTransition(from fromEntries: [PeerMembersListEntry], to toEntries: [PeerMembersListEntry], context: AccountContext, presentationData: PresentationData, enclosingPeer: Peer, addMemberAction: @escaping () -> Void, action: @escaping (PeerInfoMember, PeerMembersListAction) -> Void) -> PeerMembersListTransaction {
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let (deleteIndices, indicesAndItems, updateIndices) = mergeListsStableWithUpdates(leftList: fromEntries, rightList: toEntries)
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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, enclosingPeer: enclosingPeer, addMemberAction: addMemberAction, action: action), 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, enclosingPeer: enclosingPeer, addMemberAction: addMemberAction, action: action), directionHint: nil) }
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return PeerMembersListTransaction(deletions: deletions, insertions: insertions, updates: updates, animated: toEntries.count < fromEntries.count)
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}
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final class PeerInfoMembersPaneNode: ASDisplayNode, PeerInfoPaneNode {
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private let context: AccountContext
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private let membersContext: PeerInfoMembersContext
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private let addMemberAction: () -> Void
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private let action: (PeerInfoMember, PeerMembersListAction) -> Void
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weak var parentController: ViewController?
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private let listNode: ListView
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private var currentEntries: [PeerMembersListEntry] = []
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private var enclosingPeer: Peer?
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private var currentState: PeerInfoMembersState?
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private var canLoadMore: Bool = false
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private var enqueuedTransactions: [PeerMembersListTransaction] = []
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private var currentParams: (size: CGSize, isScrollingLockedAtTop: Bool)?
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private let presentationDataPromise = Promise<PresentationData>()
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private let ready = Promise<Bool>()
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private var didSetReady: Bool = false
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var isReady: Signal<Bool, NoError> {
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return self.ready.get()
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}
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var status: Signal<PeerInfoStatusData?, NoError> {
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return .single(nil)
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}
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var tabBarOffsetUpdated: ((ContainedViewLayoutTransition) -> Void)?
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var tabBarOffset: CGFloat {
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return 0.0
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}
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private var disposable: Disposable?
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init(context: AccountContext, peerId: PeerId, membersContext: PeerInfoMembersContext, addMemberAction: @escaping () -> Void, action: @escaping (PeerInfoMember, PeerMembersListAction) -> Void) {
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self.context = context
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self.membersContext = membersContext
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self.addMemberAction = addMemberAction
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self.action = action
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let presentationData = context.sharedContext.currentPresentationData.with { $0 }
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self.listNode = ListView()
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self.listNode.accessibilityPageScrolledString = { row, count in
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return presentationData.strings.VoiceOver_ScrollStatus(row, count).string
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}
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super.init()
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self.listNode.preloadPages = true
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self.addSubnode(self.listNode)
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self.disposable = (combineLatest(queue: .mainQueue(),
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membersContext.state,
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self.presentationDataPromise.get(),
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context.engine.data.subscribe(TelegramEngine.EngineData.Item.Peer.Peer(id: peerId))
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)
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|> deliverOnMainQueue).start(next: { [weak self] state, presentationData, enclosingPeer in
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guard let strongSelf = self, let enclosingPeer = enclosingPeer else {
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return
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}
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strongSelf.enclosingPeer = enclosingPeer._asPeer()
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strongSelf.currentState = state
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strongSelf.updateState(enclosingPeer: enclosingPeer._asPeer(), state: state, presentationData: presentationData)
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})
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self.listNode.visibleBottomContentOffsetChanged = { [weak self] offset in
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guard let strongSelf = self, let state = strongSelf.currentState, case .ready(true) = state.dataState else {
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return
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}
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if case let .known(value) = offset, value < 100.0 {
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strongSelf.membersContext.loadMore()
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}
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}
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}
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deinit {
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}
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func ensureMessageIsVisible(id: MessageId) {
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}
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func scrollToTop() -> Bool {
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if !self.listNode.scrollToOffsetFromTop(0.0, animated: true) {
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self.listNode.transaction(deleteIndices: [], insertIndicesAndItems: [], updateIndicesAndItems: [], options: [.Synchronous, .LowLatency], scrollToItem: ListViewScrollToItem(index: 0, position: .top(0.0), animated: true, curve: .Default(duration: nil), directionHint: .Up), updateSizeAndInsets: nil, stationaryItemRange: nil, updateOpaqueState: nil, completion: { _ in })
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return true
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} else {
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return false
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}
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}
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func update(size: CGSize, topInset: CGFloat, sideInset: CGFloat, bottomInset: CGFloat, visibleHeight: CGFloat, isScrollingLockedAtTop: Bool, expandProgress: CGFloat, presentationData: PresentationData, synchronous: Bool, transition: ContainedViewLayoutTransition) {
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let isFirstLayout = self.currentParams == nil
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self.currentParams = (size, isScrollingLockedAtTop)
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self.presentationDataPromise.set(.single(presentationData))
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transition.updateFrame(node: self.listNode, frame: CGRect(origin: CGPoint(), size: size))
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let (duration, curve) = listViewAnimationDurationAndCurve(transition: transition)
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var scrollToItem: ListViewScrollToItem?
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if isScrollingLockedAtTop {
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switch self.listNode.visibleContentOffset() {
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case let .known(value) where value <= CGFloat.ulpOfOne:
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break
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default:
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scrollToItem = ListViewScrollToItem(index: 0, position: .top(0.0), animated: true, curve: .Spring(duration: duration), directionHint: .Up)
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}
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}
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self.listNode.transaction(deleteIndices: [], insertIndicesAndItems: [], updateIndicesAndItems: [], options: [.Synchronous, .LowLatency], scrollToItem: scrollToItem, updateSizeAndInsets: ListViewUpdateSizeAndInsets(size: size, insets: UIEdgeInsets(top: topInset, left: sideInset, bottom: bottomInset, right: sideInset), duration: duration, curve: curve), stationaryItemRange: nil, updateOpaqueState: nil, completion: { _ in })
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self.listNode.scrollEnabled = !isScrollingLockedAtTop
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if isFirstLayout, let enclosingPeer = self.enclosingPeer, let state = self.currentState {
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self.updateState(enclosingPeer: enclosingPeer, state: state, presentationData: presentationData)
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}
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}
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private func updateState(enclosingPeer: Peer, state: PeerInfoMembersState, presentationData: PresentationData) {
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var entries: [PeerMembersListEntry] = []
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if state.canAddMembers {
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entries.append(.addMember(presentationData.theme, presentationData.strings.GroupInfo_AddParticipant))
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}
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for member in state.members {
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entries.append(.member(theme: presentationData.theme, index: entries.count, member: member))
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}
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let transaction = preparedTransition(from: self.currentEntries, to: entries, context: self.context, presentationData: presentationData, enclosingPeer: enclosingPeer, addMemberAction: { [weak self] in
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self?.addMemberAction()
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}, action: { [weak self] member, action in
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self?.action(member, action)
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})
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self.enclosingPeer = enclosingPeer
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self.currentEntries = entries
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self.enqueuedTransactions.append(transaction)
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self.dequeueTransaction()
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}
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private func dequeueTransaction() {
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guard let _ = self.currentParams, let transaction = self.enqueuedTransactions.first else {
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return
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}
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self.enqueuedTransactions.remove(at: 0)
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var options = ListViewDeleteAndInsertOptions()
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if transaction.animated {
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options.insert(.AnimateInsertion)
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} else {
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options.insert(.Synchronous)
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}
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self.listNode.transaction(deleteIndices: transaction.deletions, insertIndicesAndItems: transaction.insertions, updateIndicesAndItems: transaction.updates, options: options, updateSizeAndInsets: nil, updateOpaqueState: nil, completion: { [weak self] _ in
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guard let strongSelf = self else {
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return
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}
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if !strongSelf.didSetReady {
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strongSelf.didSetReady = true
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strongSelf.ready.set(.single(true))
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}
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})
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}
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func findLoadedMessage(id: MessageId) -> Message? {
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return nil
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}
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func updateHiddenMedia() {
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}
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func transferVelocity(_ velocity: CGFloat) {
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if velocity > 0.0 {
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self.listNode.transferVelocity(velocity)
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}
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}
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func cancelPreviewGestures() {
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}
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func transitionNodeForGallery(messageId: MessageId, media: Media) -> (ASDisplayNode, CGRect, () -> (UIView?, UIView?))? {
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return nil
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}
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func addToTransitionSurface(view: UIView) {
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}
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func updateSelectedMessages(animated: Bool) {
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}
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}
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