Conference calls

submodules/AccountContext/Sources/ContactMultiselectionController.swift

@@ -77,7 +77,7 @@ public enum ContactMultiselectionControllerMode {
         }
     }
     
-    case groupCreation
+    case groupCreation(isCall: Bool)
     case peerSelection(searchChatList: Bool, searchGroups: Bool, searchChannels: Bool)
     case channelCreation
     case chatSelection(ChatSelection)
@@ -110,7 +110,23 @@ public final class ContactMultiselectionControllerParams {
     public let openProfile: ((EnginePeer) -> Void)?
     public let sendMessage: ((EnginePeer) -> Void)?
     
-    public init(context: AccountContext, updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)? = nil, title: String? = nil, mode: ContactMultiselectionControllerMode, options: Signal<[ContactListAdditionalOption], NoError> = .single([]), filters: [ContactListFilter] = [.excludeSelf], onlyWriteable: Bool = false, isGroupInvitation: Bool = false, isPeerEnabled: ((EnginePeer) -> Bool)? = nil, attemptDisabledItemSelection: ((EnginePeer, ChatListDisabledPeerReason) -> Void)? = nil, alwaysEnabled: Bool = false, limit: Int32? = nil, reachedLimit: ((Int32) -> Void)? = nil, openProfile: ((EnginePeer) -> Void)? = nil, sendMessage: ((EnginePeer) -> Void)? = nil) {
+    public init(
+        context: AccountContext,
+        updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)? = nil,
+        title: String? = nil,
+        mode: ContactMultiselectionControllerMode,
+        options: Signal<[ContactListAdditionalOption], NoError> = .single([]),
+        filters: [ContactListFilter] = [.excludeSelf],
+        onlyWriteable: Bool = false,
+        isGroupInvitation: Bool = false,
+        isPeerEnabled: ((EnginePeer) -> Bool)? = nil,
+        attemptDisabledItemSelection: ((EnginePeer, ChatListDisabledPeerReason) -> Void)? = nil,
+        alwaysEnabled: Bool = false,
+        limit: Int32? = nil,
+        reachedLimit: ((Int32) -> Void)? = nil,
+        openProfile: ((EnginePeer) -> Void)? = nil,
+        sendMessage: ((EnginePeer) -> Void)? = nil
+    ) {
         self.context = context
         self.updatedPresentationData = updatedPresentationData
         self.title = title

submodules/AccountContext/Sources/PresentationCallManager.swift

@@ -569,6 +569,7 @@ public protocol PresentationCallManager: AnyObject {
         accountContext: AccountContext,
         initialCall: EngineGroupCallDescription,
         reference: InternalGroupCallReference,
-        beginWithVideo: Bool
+        beginWithVideo: Bool,
+        invitePeerIds: [EnginePeer.Id]
     )
 }

submodules/CallListUI/Sources/CallListController.swift

@@ -208,7 +208,7 @@ public final class CallListController: TelegramBaseController {
         }
     }
 
-    private func createGroupCall() {
+    private func createGroupCall(peerIds: [EnginePeer.Id], completion: (() -> Void)? = nil) {
         self.view.endEditing(true)
         
         guard !self.presentAccountFrozenInfoIfNeeded() else {
@@ -274,38 +274,44 @@ public final class CallListController: TelegramBaseController {
                         isStream: false
                     ),
                     reference: .id(id: call.callInfo.id, accessHash: call.callInfo.accessHash),
-                    beginWithVideo: false
+                    beginWithVideo: false,
+                    invitePeerIds: peerIds
                 )
+                completion?()
             }
             
-            let controller = InviteLinkInviteController(
+            if !peerIds.isEmpty {
-                context: self.context,
+                openCall()
-                updatedPresentationData: nil,
+            } else {
-                mode: .groupCall(InviteLinkInviteController.Mode.GroupCall(callId: call.callInfo.id, accessHash: call.callInfo.accessHash, isRecentlyCreated: true, canRevoke: true)),
+                let controller = InviteLinkInviteController(
-                initialInvite: .link(link: call.link, title: nil, isPermanent: true, requestApproval: false, isRevoked: false, adminId: self.context.account.peerId, date: 0, startDate: nil, expireDate: nil, usageLimit: nil, count: nil, requestedCount: nil, pricing: nil),
+                    context: self.context,
-                parentNavigationController: self.navigationController as? NavigationController,
+                    updatedPresentationData: nil,
-                completed: { [weak self] result in
+                    mode: .groupCall(InviteLinkInviteController.Mode.GroupCall(callId: call.callInfo.id, accessHash: call.callInfo.accessHash, isRecentlyCreated: true, canRevoke: true)),
-                    guard let self else {
+                    initialInvite: .link(link: call.link, title: nil, isPermanent: true, requestApproval: false, isRevoked: false, adminId: self.context.account.peerId, date: 0, startDate: nil, expireDate: nil, usageLimit: nil, count: nil, requestedCount: nil, pricing: nil),
-                        return
+                    parentNavigationController: self.navigationController as? NavigationController,
-                    }
+                    completed: { [weak self] result in
-                    if let result {
+                        guard let self else {
-                        switch result {
+                            return
-                        case .linkCopied:
+                        }
-                            //TODO:localize
+                        if let result {
-                            let presentationData = self.context.sharedContext.currentPresentationData.with { $0 }
+                            switch result {
-                            self.present(UndoOverlayController(presentationData: presentationData, content: .universal(animation: "anim_linkcopied", scale: 0.08, colors: ["info1.info1.stroke": UIColor.clear, "info2.info2.Fill": UIColor.clear], title: nil, text: "Call link copied.", customUndoText: "View Call", timeout: nil), elevatedLayout: false, animateInAsReplacement: false, action: { action in
+                            case .linkCopied:
-                                if case .undo = action {
+                                //TODO:localize
-                                    openCall()
+                                let presentationData = self.context.sharedContext.currentPresentationData.with { $0 }
-                                }
+                                self.present(UndoOverlayController(presentationData: presentationData, content: .universal(animation: "anim_linkcopied", scale: 0.08, colors: ["info1.info1.stroke": UIColor.clear, "info2.info2.Fill": UIColor.clear], title: nil, text: "Call link copied.", customUndoText: "View Call", timeout: nil), elevatedLayout: false, animateInAsReplacement: false, action: { action in
-                                return false
+                                    if case .undo = action {
-                            }), in: .window(.root))
+                                        openCall()
-                        case .openCall:
+                                    }
-                            openCall()
+                                    return false
+                                }), in: .window(.root))
+                            case .openCall:
+                                openCall()
+                            }
                         }
                     }
-                }
+                )
-            )
+                self.present(controller, in: .window(.root), with: nil)
-            self.present(controller, in: .window(.root), with: nil)
+            }
         })
     }
     
@@ -395,7 +401,7 @@ public final class CallListController: TelegramBaseController {
             }
         }, createGroupCall: { [weak self] in
             if let strongSelf = self {
-                strongSelf.createGroupCall()
+                strongSelf.createGroupCall(peerIds: [])
             }
         })
         
@@ -508,21 +514,69 @@ public final class CallListController: TelegramBaseController {
         guard !self.presentAccountFrozenInfoIfNeeded() else {
             return
         }
-        let controller = self.context.sharedContext.makeContactSelectionController(ContactSelectionControllerParams(context: self.context, title: { $0.Calls_NewCall }, displayCallIcons: true))
+
+        //TODO:localize
+        let options = [ContactListAdditionalOption(title: "New Call Link", icon: .generic(PresentationResourcesItemList.linkIcon(presentationData.theme)!), action: { [weak self] in
+            guard let self else {
+                return
+            }
+            self.createGroupCall(peerIds: [])
+        }, clearHighlightAutomatically: true)]
+
+        let controller = self.context.sharedContext.makeContactMultiselectionController(ContactMultiselectionControllerParams(
+            context: self.context,
+            title: self.presentationData.strings.Calls_NewCall,
+            mode: .groupCreation(isCall: true),
+            options: .single(options),
+            filters: [.excludeSelf],
+            onlyWriteable: true,
+            isGroupInvitation: false,
+            isPeerEnabled: nil,
+            attemptDisabledItemSelection: nil,
+            alwaysEnabled: false,
+            limit: nil,
+            reachedLimit: nil,
+            openProfile: nil,
+            sendMessage: nil
+        ))
         controller.navigationPresentation = .modal
-        self.createActionDisposable.set((controller.result
+        if let navigationController = self.context.sharedContext.mainWindow?.viewController as? NavigationController {
+            navigationController.pushViewController(controller)
+        }
+
+        let _ = (controller.result
         |> take(1)
-        |> deliverOnMainQueue).startStrict(next: { [weak controller, weak self] result in
+        |> deliverOnMainQueue).startStandalone(next: { [weak controller, weak self] result in
-            controller?.dismissSearch()
+            guard let self else {
-            if let strongSelf = self, let (contactPeers, action, _, _, _, _) = result, let contactPeer = contactPeers.first,  case let .peer(peer, _, _) = contactPeer {
+                controller?.dismiss()
-                strongSelf.call(peer.id, isVideo: action == .videoCall, began: {
+                return
+            }
+            guard case let .result(rawPeerIds, _) = result else {
+                controller?.dismiss()
+                return
+            }
+            let peerIds = rawPeerIds.compactMap { id -> EnginePeer.Id? in
+                if case let .peer(id) = id {
+                    return id
+                }
+                return nil
+            }
+            if peerIds.isEmpty {
+                controller?.dismiss()
+                return
+            }
+
+            if peerIds.count == 1 {
+                //TODO:release isVideo
+                controller?.dismiss()
+                self.call(peerIds[0], isVideo: false, began: { [weak self] in
                     if let strongSelf = self {
                         let _ = (strongSelf.context.sharedContext.hasOngoingCall.get()
                         |> filter { $0 }
                         |> timeout(1.0, queue: Queue.mainQueue(), alternate: .single(true))
                         |> delay(0.5, queue: Queue.mainQueue())
                         |> take(1)
-                        |> deliverOnMainQueue).startStandalone(next: { _ in
+                        |> deliverOnMainQueue).startStandalone(next: { [weak self] _ in
                             if let _ = self, let controller = controller, let navigationController = controller.navigationController as? NavigationController {
                                 if navigationController.viewControllers.last === controller {
                                     let _ = navigationController.popViewController(animated: true)
@@ -531,11 +585,12 @@ public final class CallListController: TelegramBaseController {
                         })
                     }
                 })
+            } else {
+                self.createGroupCall(peerIds: peerIds, completion: {
+                    controller?.dismiss()
+                })
             }
-        }))
+        })
-        if let navigationController = self.context.sharedContext.mainWindow?.viewController as? NavigationController {
-            navigationController.pushViewController(controller)
-        }
     }
     
     private func presentAccountFrozenInfoIfNeeded(delay: Bool = false) -> Bool {
@@ -670,7 +725,8 @@ public final class CallListController: TelegramBaseController {
                     isStream: false
                 ),
                 reference: .message(id: message.id),
-                beginWithVideo: conferenceCall.flags.contains(.isVideo)
+                beginWithVideo: conferenceCall.flags.contains(.isVideo),
+                invitePeerIds: []
             )
         })
     }

submodules/CounterControllerTitleView/Sources/CounterControllerTitleView.swift

@@ -6,9 +6,9 @@ import TelegramPresentationData
 
 public struct CounterControllerTitle: Equatable {
     public var title: String
-    public var counter: String
+    public var counter: String?
     
-    public init(title: String, counter: String) {
+    public init(title: String, counter: String?) {
         self.title = title
         self.counter = counter
     }
@@ -18,7 +18,7 @@ public final class CounterControllerTitleView: UIView {
     private let titleNode: ImmediateTextNode
     private let subtitleNode: ImmediateTextNode
     
-    public var title: CounterControllerTitle = CounterControllerTitle(title: "", counter: "") {
+    public var title: CounterControllerTitle = CounterControllerTitle(title: "", counter: nil) {
         didSet {
             if self.title != oldValue {
                 self.update()
@@ -59,7 +59,7 @@ public final class CounterControllerTitleView: UIView {
         let primaryTextColor = self.primaryTextColor ?? self.theme.rootController.navigationBar.primaryTextColor
         let secondaryTextColor = self.secondaryTextColor ?? self.theme.rootController.navigationBar.secondaryTextColor
         self.titleNode.attributedText = NSAttributedString(string: self.title.title, font: Font.semibold(17.0), textColor: primaryTextColor)
-        self.subtitleNode.attributedText = NSAttributedString(string: self.title.counter, font: Font.with(size: 13.0, traits: .monospacedNumbers), textColor: secondaryTextColor)
+        self.subtitleNode.attributedText = NSAttributedString(string: self.title.counter ?? "", font: Font.with(size: 13.0, traits: .monospacedNumbers), textColor: secondaryTextColor)
         
         self.accessibilityLabel = self.title.title
         self.accessibilityValue = self.title.counter
@@ -103,7 +103,13 @@ public final class CounterControllerTitleView: UIView {
         
         let titleSize = self.titleNode.updateLayout(CGSize(width: max(1.0, size.width), height: size.height))
         let subtitleSize = self.subtitleNode.updateLayout(CGSize(width: max(1.0, size.width), height: size.height))
-        let combinedHeight = titleSize.height + subtitleSize.height + spacing
+        
+        let combinedHeight: CGFloat
+        if self.title.counter != nil {
+            combinedHeight = titleSize.height + subtitleSize.height + spacing
+        } else {
+            combinedHeight = titleSize.height
+        }
         
         let titleFrame = CGRect(origin: CGPoint(x: floor((size.width - titleSize.width) / 2.0), y: floor((size.height - combinedHeight) / 2.0)), size: titleSize)
         self.titleNode.frame = titleFrame

submodules/InviteLinksUI/Sources/InviteLinkInviteController.swift

@@ -427,7 +427,7 @@ public final class InviteLinkInviteController: ViewController {
                                 strongSelf.controller?.present(controller, in: .window(.root))
                             })
                         } else if case .groupCall = self.mode {
-                            let controller = QrCodeScreen(context: context, updatedPresentationData: (self.presentationData, self.presentationDataPromise.get()), subject: .invite(invite: invite, type: .channel))
+                            let controller = QrCodeScreen(context: context, updatedPresentationData: (self.presentationData, self.presentationDataPromise.get()), subject: .invite(invite: invite, type: .groupCall))
                             self.controller?.present(controller, in: .window(.root))
                         }
                     }

submodules/TelegramCallsUI/Sources/PresentationCallManager.swift

@@ -1083,7 +1083,8 @@ public final class PresentationCallManagerImpl: PresentationCallManager {
         accountContext: AccountContext,
         initialCall: EngineGroupCallDescription,
         reference: InternalGroupCallReference,
-        beginWithVideo: Bool
+        beginWithVideo: Bool,
+        invitePeerIds: [EnginePeer.Id]
     ) {
         let keyPair: TelegramKeyPair
         guard let keyPairValue = TelegramE2EEncryptionProviderImpl.shared.generateKeyPair() else {
@@ -1109,6 +1110,9 @@ public final class PresentationCallManagerImpl: PresentationCallManager {
             beginWithVideo: beginWithVideo,
             sharedAudioContext: nil
         )
+        for peerId in invitePeerIds {
+            let _ = call.invitePeer(peerId, isVideo: beginWithVideo)
+        }
         self.updateCurrentGroupCall(.group(call))
     }
 }

submodules/TelegramCore/Sources/State/UserLimitsConfiguration.swift

@@ -28,6 +28,7 @@ public struct UserLimitsConfiguration: Equatable {
     public var maxGiveawayCountriesCount: Int32
     public var maxGiveawayPeriodSeconds: Int32
     public var maxChannelRecommendationsCount: Int32
+    public var maxConferenceParticipantCount: Int32
     
     public static var defaultValue: UserLimitsConfiguration {
         return UserLimitsConfiguration(
@@ -56,7 +57,8 @@ public struct UserLimitsConfiguration: Equatable {
             maxGiveawayChannelsCount: 10,
             maxGiveawayCountriesCount: 10,
             maxGiveawayPeriodSeconds: 86400 * 31,
-            maxChannelRecommendationsCount: 10
+            maxChannelRecommendationsCount: 10,
+            maxConferenceParticipantCount: 100
         )
     }
 
@@ -86,7 +88,8 @@ public struct UserLimitsConfiguration: Equatable {
         maxGiveawayChannelsCount: Int32,
         maxGiveawayCountriesCount: Int32,
         maxGiveawayPeriodSeconds: Int32,
-        maxChannelRecommendationsCount: Int32
+        maxChannelRecommendationsCount: Int32,
+        maxConferenceParticipantCount: Int32
     ) {
         self.maxPinnedChatCount = maxPinnedChatCount
         self.maxPinnedSavedChatCount = maxPinnedSavedChatCount
@@ -114,6 +117,7 @@ public struct UserLimitsConfiguration: Equatable {
         self.maxGiveawayCountriesCount = maxGiveawayCountriesCount
         self.maxGiveawayPeriodSeconds = maxGiveawayPeriodSeconds
         self.maxChannelRecommendationsCount = maxChannelRecommendationsCount
+        self.maxConferenceParticipantCount = maxConferenceParticipantCount
     }
 }
 
@@ -167,5 +171,6 @@ extension UserLimitsConfiguration {
         self.maxGiveawayCountriesCount = getGeneralValue("giveaway_countries_max", orElse: defaultValue.maxGiveawayCountriesCount)
         self.maxGiveawayPeriodSeconds = getGeneralValue("giveaway_period_max", orElse: defaultValue.maxGiveawayPeriodSeconds)
         self.maxChannelRecommendationsCount = getValue("recommended_channels_limit", orElse: defaultValue.maxChannelRecommendationsCount)
+        self.maxConferenceParticipantCount = getGeneralValue("conference_call_size_limit", orElse: defaultValue.maxConferenceParticipantCount)
     }
 }

submodules/TelegramCore/Sources/TelegramEngine/Data/ConfigurationData.swift

@@ -62,6 +62,7 @@ public enum EngineConfiguration {
         public let maxGiveawayCountriesCount: Int32
         public let maxGiveawayPeriodSeconds: Int32
         public let maxChannelRecommendationsCount: Int32
+        public let maxConferenceParticipantCount: Int32
         
         public static var defaultValue: UserLimits {
             return UserLimits(UserLimitsConfiguration.defaultValue)
@@ -93,7 +94,8 @@ public enum EngineConfiguration {
             maxGiveawayChannelsCount: Int32,
             maxGiveawayCountriesCount: Int32,
             maxGiveawayPeriodSeconds: Int32,
-            maxChannelRecommendationsCount: Int32
+            maxChannelRecommendationsCount: Int32,
+            maxConferenceParticipantCount: Int32
         ) {
             self.maxPinnedChatCount = maxPinnedChatCount
             self.maxPinnedSavedChatCount = maxPinnedSavedChatCount
@@ -121,6 +123,7 @@ public enum EngineConfiguration {
             self.maxGiveawayCountriesCount = maxGiveawayCountriesCount
             self.maxGiveawayPeriodSeconds = maxGiveawayPeriodSeconds
             self.maxChannelRecommendationsCount = maxChannelRecommendationsCount
+            self.maxConferenceParticipantCount = maxConferenceParticipantCount
         }
     }
 }
@@ -183,7 +186,8 @@ public extension EngineConfiguration.UserLimits {
             maxGiveawayChannelsCount: userLimitsConfiguration.maxGiveawayChannelsCount,
             maxGiveawayCountriesCount: userLimitsConfiguration.maxGiveawayCountriesCount,
             maxGiveawayPeriodSeconds: userLimitsConfiguration.maxGiveawayPeriodSeconds,
-            maxChannelRecommendationsCount: userLimitsConfiguration.maxChannelRecommendationsCount
+            maxChannelRecommendationsCount: userLimitsConfiguration.maxChannelRecommendationsCount,
+            maxConferenceParticipantCount: userLimitsConfiguration.maxConferenceParticipantCount
         )
     }
 }

submodules/TelegramUI/BUILD

@@ -469,6 +469,9 @@ swift_library(
         "//submodules/TelegramUI/Components/Settings/AccountFreezeInfoScreen",
         "//submodules/TelegramUI/Components/JoinSubjectScreen",
         "//submodules/TelegramUI/Components/Chat/QuickShareScreen",
+        "//submodules/TelegramUI/Components/ButtonComponent",
+        "//submodules/Components/BlurredBackgroundComponent",
+        "//submodules/TelegramUI/Components/CheckComponent",
         "//third-party/recaptcha:RecaptchaEnterprise",
     ] + select({
         "@build_bazel_rules_apple//apple:ios_arm64": appcenter_targets,

submodules/TelegramUI/Components/JoinSubjectScreen/Sources/JoinSubjectScreen.swift

@@ -405,7 +405,8 @@ private final class JoinSubjectScreenComponent: Component {
                         isStream: false
                     ),
                     reference: .link(slug: groupCall.slug),
-                    beginWithVideo: false
+                    beginWithVideo: false,
+                    invitePeerIds: []
                 )
                 
                 self.environment?.controller()?.dismiss()

submodules/TelegramUI/Sources/ChatController.swift

@@ -2919,7 +2919,8 @@ public final class ChatControllerImpl: TelegramBaseController, ChatController, G
                         isStream: false
                     ),
                     reference: .message(id: message.id),
-                    beginWithVideo: conferenceCall.flags.contains(.isVideo)
+                    beginWithVideo: conferenceCall.flags.contains(.isVideo),
+                    invitePeerIds: []
                 )
             })
         }, longTap: { [weak self] action, params in

submodules/TelegramUI/Sources/ComposeController.swift

@@ -125,7 +125,7 @@ public class ComposeControllerImpl: ViewController, ComposeController {
 
         self.contactsNode.openCreateNewGroup = { [weak self] in
             if let strongSelf = self {
-                let controller = strongSelf.context.sharedContext.makeContactMultiselectionController(ContactMultiselectionControllerParams(context: strongSelf.context, mode: .groupCreation, onlyWriteable: true))
+                let controller = strongSelf.context.sharedContext.makeContactMultiselectionController(ContactMultiselectionControllerParams(context: strongSelf.context, mode: .groupCreation(isCall: false), onlyWriteable: true))
                 (strongSelf.navigationController as? NavigationController)?.pushViewController(controller, completion: { [weak self] in
                     if let strongSelf = self {
                         strongSelf.contactsNode.contactListNode.listNode.clearHighlightAnimated(true)

submodules/TelegramUI/Sources/ContactMultiselectionController.swift

@@ -241,8 +241,13 @@ class ContactMultiselectionControllerImpl: ViewController, ContactMultiselection
         }
         
         switch self.mode {
-        case .groupCreation:
+        case let .groupCreation(isCall):
-            let maxCount: Int32 = self.limitsConfiguration?.maxSupergroupMemberCount ?? 5000
+            let maxCount: Int32
+            if isCall {
+                maxCount = self.context.userLimits.maxConferenceParticipantCount
+            } else {
+                maxCount = self.limitsConfiguration?.maxSupergroupMemberCount ?? 5000
+            }
             let count: Int
             switch self.contactsNode.contentNode {
             case let .contacts(contactsNode):
@@ -250,8 +255,12 @@ class ContactMultiselectionControllerImpl: ViewController, ContactMultiselection
             case let .chats(chatsNode):
                 count = chatsNode.currentState.selectedPeerIds.count
             }
-            self.titleView.title = CounterControllerTitle(title: self.params.title ?? self.presentationData.strings.Compose_NewGroupTitle, counter: "\(count)/\(maxCount)")
+            if isCall && count == 0 {
-            if self.rightNavigationButton == nil {
+                self.titleView.title = CounterControllerTitle(title: self.params.title ?? self.presentationData.strings.Compose_NewGroupTitle, counter: nil)
+            } else {
+                self.titleView.title = CounterControllerTitle(title: self.params.title ?? self.presentationData.strings.Compose_NewGroupTitle, counter: "\(count)/\(maxCount)")
+            }
+            if self.rightNavigationButton == nil && !isCall {
                 let rightNavigationButton = UIBarButtonItem(title: self.presentationData.strings.Common_Next, style: .done, target: self, action: #selector(self.rightNavigationButtonPressed))
                 self.rightNavigationButton = rightNavigationButton
                 self.navigationItem.rightBarButtonItem = self.rightNavigationButton
@@ -349,6 +358,10 @@ class ContactMultiselectionControllerImpl: ViewController, ContactMultiselection
                             if updatedState.selectedPeerIndices[.peer(peer.id)] == nil {
                                 removedTokenId = peer.id
                             } else {
+                                var selectedPeerMap = updatedState.selectedPeerMap
+                                selectedPeerMap[.peer(peer.id)] = .peer(peer: peer, isGlobal: false, participantCount: nil)
+                                updatedState = updatedState.withSelectedPeerMap(selectedPeerMap)
+                                
                                 if updatedState.selectedPeerIndices.count >= maxRegularCount {
                                     displayCountAlert = true
                                     updatedState = updatedState.withToggledPeerId(.peer(peer.id))
@@ -538,8 +551,13 @@ class ContactMultiselectionControllerImpl: ViewController, ContactMultiselection
                             break
                     }
                     switch strongSelf.mode {
-                        case .groupCreation:
+                        case let .groupCreation(isCall):
-                            let maxCount: Int32 = strongSelf.limitsConfiguration?.maxSupergroupMemberCount ?? 5000
+                            let maxCount: Int32
+                            if isCall {
+                                maxCount = strongSelf.context.userLimits.maxConferenceParticipantCount
+                            } else {
+                                maxCount = strongSelf.limitsConfiguration?.maxSupergroupMemberCount ?? 5000
+                            }
                             strongSelf.titleView.title = CounterControllerTitle(title: strongSelf.presentationData.strings.Compose_NewGroupTitle, counter: "\(updatedCount)/\(maxCount)")
                         case .premiumGifting:
                             let maxCount: Int32 = strongSelf.limit ?? 10

submodules/TelegramUI/Sources/ContactMultiselectionControllerNode.swift

@@ -14,6 +14,7 @@ import MultiAnimationRenderer
 import EditableTokenListNode
 import SolidRoundedButtonNode
 import ContextUI
+import ComponentFlow
 
 private struct SearchResultEntry: Identifiable {
     let index: Int
@@ -53,6 +54,7 @@ final class ContactMultiselectionControllerNode: ASDisplayNode {
     var searchResultsNode: ContactListNode?
     
     private let context: AccountContext
+    private let mode: ContactMultiselectionControllerMode
     
     private var containerLayout: (ContainerViewLayout, CGFloat, CGFloat)?
     
@@ -81,12 +83,15 @@ final class ContactMultiselectionControllerNode: ASDisplayNode {
     private let isPeerEnabled: ((EnginePeer) -> Bool)?
     private let onlyWriteable: Bool
     private let isGroupInvitation: Bool
+
+    private var bottomPanel: ComponentView<Empty>?
     
     init(navigationBar: NavigationBar?, context: AccountContext, presentationData: PresentationData, updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)?, mode: ContactMultiselectionControllerMode, isPeerEnabled: ((EnginePeer) -> Bool)?, attemptDisabledItemSelection: ((EnginePeer, ChatListDisabledPeerReason) -> Void)?, options: Signal<[ContactListAdditionalOption], NoError>, filters: [ContactListFilter], onlyWriteable: Bool, isGroupInvitation: Bool, limit: Int32?, reachedSelectionLimit: ((Int32) -> Void)?, present: @escaping (ViewController, Any?) -> Void) {
         self.navigationBar = navigationBar
         
         self.context = context
         self.presentationData = presentationData
+        self.mode = mode
         
         self.animationCache = context.animationCache
         self.animationRenderer = context.animationRenderer
@@ -120,6 +125,17 @@ final class ContactMultiselectionControllerNode: ASDisplayNode {
             self.footerPanelNode = FooterPanelNode(theme: self.presentationData.theme, strings: self.presentationData.strings, action: {
                 proceedImpl?()
             })
+        case let .groupCreation(isCall):
+            if isCall {
+                //TODO:localize
+                placeholder = "Search for contacts or usernames"
+                self.footerPanelNode = FooterPanelNode(theme: self.presentationData.theme, strings: self.presentationData.strings, action: {
+                    proceedImpl?()
+                })
+            } else {
+                placeholder = self.presentationData.strings.Compose_TokenListPlaceholder    
+                self.footerPanelNode = nil
+            }
         default:
             placeholder = self.presentationData.strings.Compose_TokenListPlaceholder
             self.footerPanelNode = nil
@@ -462,7 +478,24 @@ final class ContactMultiselectionControllerNode: ASDisplayNode {
             if case let .contacts(contactListNode) = self.contentNode {
                 count = contactListNode.selectionState?.selectedPeerIndices.count ?? 0
             }
-            footerPanelNode.count = count
+            if case let .groupCreation(isCall) = self.mode, isCall {
+                //TODO:localize
+                if count == 0 {
+                    // Don't set anything to prevent state update
+                } else if count <= 1 {
+                    let callTitle: String
+                    if case let .contacts(contactListNode) = self.contentNode, let peer = contactListNode.selectedPeers.first, case let .peer(peer, _, _) = peer {
+                        callTitle = "Call \(EnginePeer(peer).compactDisplayTitle)"
+                    } else {
+                        callTitle = "Call"
+                    }
+                    footerPanelNode.content = FooterPanelNode.Content(title: callTitle, badge: "")
+                } else {
+                    footerPanelNode.content = FooterPanelNode.Content(title: "Call", badge: "\(count)")
+                }
+            } else {
+                footerPanelNode.content = FooterPanelNode.Content(title: self.presentationData.strings.Premium_Gift_ContactSelection_Proceed, badge: count == 0 ? "" : "\(count)")
+            }
             let panelHeight = footerPanelNode.updateLayout(width: layout.size.width, sideInset: layout.safeInsets.left, bottomInset: headerInsets.bottom, transition: transition)
             if count == 0 {
                 transition.updateFrame(node: footerPanelNode, frame: CGRect(origin: CGPoint(x: 0.0, y: layout.size.height), size: CGSize(width: layout.size.width, height: panelHeight)))
@@ -509,6 +542,16 @@ final class ContactMultiselectionControllerNode: ASDisplayNode {
 
 
 private final class FooterPanelNode: ASDisplayNode {
+    struct Content: Equatable {
+        let title: String
+        let badge: String
+
+        init(title: String, badge: String) {
+            self.title = title
+            self.badge = badge
+        }
+    }
+    
     private let theme: PresentationTheme
     private let strings: PresentationStrings
     
@@ -517,11 +560,11 @@ private final class FooterPanelNode: ASDisplayNode {
     
     private var validLayout: (CGFloat, CGFloat, CGFloat)?
     
-    var count: Int = 0 {
+    var content: Content {
         didSet {
-            if self.count != oldValue && self.count > 0 {
+            if self.content != oldValue {
-                self.button.title = self.strings.Premium_Gift_ContactSelection_Proceed
+                self.button.title = content.title
-                self.button.badge = "\(self.count)"
+                self.button.badge = content.badge.isEmpty ? nil : content.badge
                 
                 if let (width, sideInset, bottomInset) = self.validLayout {
                     let _ = self.updateLayout(width: width, sideInset: sideInset, bottomInset: bottomInset, transition: .immediate)
@@ -538,6 +581,8 @@ private final class FooterPanelNode: ASDisplayNode {
         self.separatorNode.backgroundColor = theme.rootController.navigationBar.separatorColor
         
         self.button = SolidRoundedButtonView(theme: SolidRoundedButtonTheme(theme: theme), height: 48.0, cornerRadius: 10.0)
+
+        self.content = Content(title: self.strings.Premium_Gift_ContactSelection_Proceed, badge: "")
         
         super.init()