Temp

submodules/TelegramUI/Sources/PeerSelectionController.swift

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+import Foundation
+import UIKit
+import SwiftSignalKit
+import Display
+import TelegramCore
+import SyncCore
+import Postbox
+import TelegramPresentationData
+import ProgressNavigationButtonNode
+import AccountContext
+import SearchUI
+import ChatListUI
+
+public final class PeerSelectionControllerImpl: ViewController, PeerSelectionController {
+    private let context: AccountContext
+    
+    private var presentationData: PresentationData
+    private var presentationDataDisposable: Disposable?
+    
+    private var customTitle: String?
+    
+    public var peerSelected: ((PeerId) -> Void)?
+    private let filter: ChatListNodePeersFilter
+    
+    private let attemptSelection: ((Peer) -> Void)?
+    
+    public var inProgress: Bool = false {
+        didSet {
+            if self.inProgress != oldValue {
+                if self.isNodeLoaded {
+                    self.peerSelectionNode.inProgress = self.inProgress
+                }
+                
+                if self.inProgress {
+                    self.navigationItem.rightBarButtonItem = UIBarButtonItem(customDisplayNode: ProgressNavigationButtonNode(color: self.presentationData.theme.rootController.navigationBar.controlColor))
+                } else {
+                    self.navigationItem.rightBarButtonItem = nil
+                }
+            }
+        }
+    }
+    
+    private var peerSelectionNode: PeerSelectionControllerNode {
+        return super.displayNode as! PeerSelectionControllerNode
+    }
+    
+    let openMessageFromSearchDisposable: MetaDisposable = MetaDisposable()
+    
+    private let _ready = Promise<Bool>()
+    override public var ready: Promise<Bool> {
+        return self._ready
+    }
+    
+    private let hasContactSelector: Bool
+    
+    private var searchContentNode: NavigationBarSearchContentNode?
+    
+    public init(_ params: PeerSelectionControllerParams) {
+        self.context = params.context
+        self.filter = params.filter
+        self.hasContactSelector = params.hasContactSelector
+        self.presentationData = self.context.sharedContext.currentPresentationData.with { $0 }
+        self.attemptSelection = params.attemptSelection
+        
+        super.init(navigationBarPresentationData: NavigationBarPresentationData(presentationData: self.presentationData))
+        
+        self.navigationPresentation = .modal
+        
+        self.statusBar.statusBarStyle = self.presentationData.theme.rootController.statusBarStyle.style
+        
+        self.customTitle = params.title
+        self.title = self.customTitle ?? self.presentationData.strings.Conversation_ForwardTitle
+        
+        self.navigationItem.leftBarButtonItem = UIBarButtonItem(title: self.presentationData.strings.Common_Cancel, style: .plain, target: self, action: #selector(self.cancelPressed))
+        
+        self.scrollToTop = { [weak self] in
+            if let strongSelf = self {
+                if let searchContentNode = strongSelf.searchContentNode {
+                    searchContentNode.updateExpansionProgress(1.0, animated: true)
+                }
+                strongSelf.peerSelectionNode.scrollToTop()
+            }
+        }
+        
+        self.presentationDataDisposable = (self.context.sharedContext.presentationData
+        |> deliverOnMainQueue).start(next: { [weak self] presentationData in
+            if let strongSelf = self {
+                let previousTheme = strongSelf.presentationData.theme
+                let previousStrings = strongSelf.presentationData.strings
+                
+                strongSelf.presentationData = presentationData
+                
+                if previousTheme !== presentationData.theme || previousStrings !== presentationData.strings {
+                    strongSelf.updateThemeAndStrings()
+                }
+            }
+        })
+        
+        self.searchContentNode = NavigationBarSearchContentNode(theme: self.presentationData.theme, placeholder: self.presentationData.strings.Common_Search, activate: { [weak self] in
+            self?.activateSearch()
+        })
+        self.navigationBar?.setContentNode(self.searchContentNode, animated: false)
+    }
+    
+    required public init(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    deinit {
+        self.openMessageFromSearchDisposable.dispose()
+        self.presentationDataDisposable?.dispose()
+    }
+    
+    private func updateThemeAndStrings() {
+        self.statusBar.statusBarStyle = self.presentationData.theme.rootController.statusBarStyle.style
+        self.navigationBar?.updatePresentationData(NavigationBarPresentationData(presentationData: self.presentationData))
+        self.searchContentNode?.updateThemeAndPlaceholder(theme: self.presentationData.theme, placeholder: self.presentationData.strings.Common_Search)
+        self.title = self.customTitle ?? self.presentationData.strings.Conversation_ForwardTitle
+        self.navigationItem.backBarButtonItem = UIBarButtonItem(title: self.presentationData.strings.Common_Back, style: .plain, target: nil, action: nil)
+    }
+    
+    override public func loadDisplayNode() {
+        self.displayNode = PeerSelectionControllerNode(context: self.context, filter: self.filter, hasContactSelector: hasContactSelector, present: { [weak self] c, a in
+            self?.present(c, in: .window(.root), with: a)
+        }, dismiss: { [weak self] in
+            self?.presentingViewController?.dismiss(animated: false, completion: nil)
+        })
+        
+        self.peerSelectionNode.navigationBar = self.navigationBar
+        
+        self.peerSelectionNode.requestDeactivateSearch = { [weak self] in
+            self?.deactivateSearch()
+        }
+        
+        self.peerSelectionNode.requestActivateSearch = { [weak self] in
+            self?.activateSearch()
+        }
+        
+        self.peerSelectionNode.requestOpenPeer = { [weak self] peerId in
+            if let strongSelf = self, let peerSelected = strongSelf.peerSelected {
+                peerSelected(peerId)
+            }
+        }
+        
+        self.peerSelectionNode.requestOpenDisabledPeer = { [weak self] peer in
+            if let strongSelf = self {
+                strongSelf.attemptSelection?(peer)
+            }
+        }
+        
+        self.peerSelectionNode.requestOpenPeerFromSearch = { [weak self] peer in
+            if let strongSelf = self {
+                let storedPeer = strongSelf.context.account.postbox.transaction { transaction -> Void in
+                    if transaction.getPeer(peer.id) == nil {
+                        updatePeers(transaction: transaction, peers: [peer], update: { previousPeer, updatedPeer in
+                            return updatedPeer
+                        })
+                    }
+                }
+                strongSelf.openMessageFromSearchDisposable.set((storedPeer |> deliverOnMainQueue).start(completed: { [weak strongSelf] in
+                    if let strongSelf = strongSelf, let peerSelected = strongSelf.peerSelected {
+                        peerSelected(peer.id)
+                    }
+                }))
+            }
+        }
+        
+        var isProcessingContentOffsetChanged = false
+        self.peerSelectionNode.contentOffsetChanged = { [weak self] offset in
+            if isProcessingContentOffsetChanged {
+                return
+            }
+            isProcessingContentOffsetChanged = true
+            if let strongSelf = self, let searchContentNode = strongSelf.searchContentNode {
+                searchContentNode.updateListVisibleContentOffset(offset)
+                isProcessingContentOffsetChanged = false
+            }
+        }
+        
+        self.peerSelectionNode.contentScrollingEnded = { [weak self] listView in
+            if let strongSelf = self, let searchContentNode = strongSelf.searchContentNode {
+                return fixNavigationSearchableListNodeScrolling(listView, searchNode: searchContentNode)
+            } else {
+                return false
+            }
+        }
+        
+        self.displayNodeDidLoad()
+        
+        self._ready.set(self.peerSelectionNode.ready)
+    }
+    
+    override public func viewWillAppear(_ animated: Bool) {
+        super.viewWillAppear(animated)
+    }
+    
+    override public func viewDidAppear(_ animated: Bool) {
+        super.viewDidAppear(animated)
+        
+        //self.peerSelectionNode.animateIn()
+    }
+    
+    override public func viewDidDisappear(_ animated: Bool) {
+        super.viewDidDisappear(animated)
+    }
+    
+    override public func containerLayoutUpdated(_ layout: ContainerViewLayout, transition: ContainedViewLayoutTransition) {
+        super.containerLayoutUpdated(layout, transition: transition)
+        
+        self.peerSelectionNode.containerLayoutUpdated(layout, navigationBarHeight: self.navigationInsetHeight, actualNavigationBarHeight: self.navigationHeight, transition: transition)
+    }
+    
+    @objc func cancelPressed() {
+        self.dismiss()
+    }
+    
+    private func activateSearch() {
+        if self.displayNavigationBar {
+            if let scrollToTop = self.scrollToTop {
+                scrollToTop()
+            }
+            if let searchContentNode = self.searchContentNode {
+                self.peerSelectionNode.activateSearch(placeholderNode: searchContentNode.placeholderNode)
+            }
+            self.setDisplayNavigationBar(false, transition: .animated(duration: 0.5, curve: .spring))
+        }
+    }
+    
+    private func deactivateSearch() {
+        if !self.displayNavigationBar {
+            self.setDisplayNavigationBar(true, transition: .animated(duration: 0.5, curve: .spring))
+            if let searchContentNode = self.searchContentNode {
+                self.peerSelectionNode.deactivateSearch(placeholderNode: searchContentNode.placeholderNode)
+            }
+        }
+    }
+}