Refactor PeerInfoUI and related modules

submodules/PeerInfoUI/Sources/ChannelMembersSearchController.swift

@@ -0,0 +1,154 @@
+import Foundation
+import UIKit
+import Display
+import TelegramCore
+import Postbox
+import SwiftSignalKit
+import TelegramPresentationData
+import AccountContext
+import SearchUI
+
+enum ChannelMembersSearchControllerMode {
+    case promote
+    case ban
+}
+
+enum ChannelMembersSearchFilter {
+    case exclude([PeerId])
+    case disable([PeerId])
+}
+
+final class ChannelMembersSearchController: ViewController {
+    private let queue = Queue()
+    
+    private let context: AccountContext
+    private let peerId: PeerId
+    private let mode: ChannelMembersSearchControllerMode
+    private let filters: [ChannelMembersSearchFilter]
+    private let openPeer: (Peer, RenderedChannelParticipant?) -> Void
+    
+    private var presentationData: PresentationData
+    
+    private var didPlayPresentationAnimation = false
+    
+    private var controllerNode: ChannelMembersSearchControllerNode {
+        return self.displayNode as! ChannelMembersSearchControllerNode
+    }
+    
+    private var searchContentNode: NavigationBarSearchContentNode?
+    
+    init(context: AccountContext, peerId: PeerId, mode: ChannelMembersSearchControllerMode, filters: [ChannelMembersSearchFilter] = [], openPeer: @escaping (Peer, RenderedChannelParticipant?) -> Void) {
+        self.context = context
+        self.peerId = peerId
+        self.mode = mode
+        self.openPeer = openPeer
+        self.filters = filters
+        self.presentationData = context.sharedContext.currentPresentationData.with { $0 }
+        
+        super.init(navigationBarPresentationData: NavigationBarPresentationData(presentationData: self.presentationData))
+        
+        self.statusBar.statusBarStyle = self.presentationData.theme.rootController.statusBarStyle.style
+        
+        self.title = self.presentationData.strings.Channel_Members_Title
+        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.controllerNode.scrollToTop()
+            }
+        }
+        
+        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")
+    }
+    
+    override func loadDisplayNode() {
+        self.displayNode = ChannelMembersSearchControllerNode(context: self.context, presentationData: self.presentationData, peerId: self.peerId, mode: self.mode, filters: self.filters)
+        self.controllerNode.navigationBar = self.navigationBar
+        self.controllerNode.requestActivateSearch = { [weak self] in
+            self?.activateSearch()
+        }
+        self.controllerNode.requestDeactivateSearch = { [weak self] in
+            self?.deactivateSearch(animated: true)
+        }
+        self.controllerNode.requestOpenPeerFromSearch = { [weak self] peer, participant in
+            self?.openPeer(peer, participant)
+        }
+        self.controllerNode.present = { [weak self] c, a in
+            self?.present(c, in: .window(.root), with: a)
+        }
+        
+        self.displayNodeDidLoad()
+        
+        self.controllerNode.listNode.visibleContentOffsetChanged = { [weak self] offset in
+            if let strongSelf = self, let searchContentNode = strongSelf.searchContentNode {
+                searchContentNode.updateListVisibleContentOffset(offset)
+            }
+        }
+        
+        self.controllerNode.listNode.didEndScrolling = { [weak self] in
+            if let strongSelf = self, let searchContentNode = strongSelf.searchContentNode {
+                let _ = fixNavigationSearchableListNodeScrolling(strongSelf.controllerNode.listNode, searchNode: searchContentNode)
+            }
+        }
+    }
+    
+    override func viewDidAppear(_ animated: Bool) {
+        super.viewDidAppear(animated)
+        
+        if let presentationArguments = self.presentationArguments as? ViewControllerPresentationArguments, !self.didPlayPresentationAnimation {
+            self.didPlayPresentationAnimation = true
+            if case .modalSheet = presentationArguments.presentationAnimation {
+                self.controllerNode.animateIn()
+            }
+        }
+    }
+    
+    override func dismiss(completion: (() -> Void)? = nil) {
+        self.view.endEditing(true)
+        self.controllerNode.animateOut(completion: { [weak self] in
+            self?.presentingViewController?.dismiss(animated: false, completion: nil)
+            completion?()
+        })
+    }
+    
+    override public func containerLayoutUpdated(_ layout: ContainerViewLayout, transition: ContainedViewLayoutTransition) {
+        super.containerLayoutUpdated(layout, transition: transition)
+        
+        self.controllerNode.containerLayoutUpdated(layout, navigationBarHeight: self.navigationInsetHeight, transition: transition)
+    }
+    
+    private func activateSearch() {
+        if self.displayNavigationBar {
+            if let scrollToTop = self.scrollToTop {
+                scrollToTop()
+            }
+            if let searchContentNode = self.searchContentNode {
+                self.controllerNode.activateSearch(placeholderNode: searchContentNode.placeholderNode)
+            }
+            self.setDisplayNavigationBar(false, transition: .animated(duration: 0.5, curve: .spring))
+        }
+    }
+    
+    private func deactivateSearch(animated: Bool) {
+        if !self.displayNavigationBar {
+            self.setDisplayNavigationBar(true, transition: .animated(duration: 0.5, curve: .spring))
+            if let searchContentNode = self.searchContentNode {
+                self.controllerNode.deactivateSearch(placeholderNode: searchContentNode.placeholderNode, animated: animated)
+            }
+        }
+    }
+    
+    @objc func cancelPressed() {
+        self.dismiss()
+    }
+}