Temp

submodules/TelegramUI/Sources/ChatInterfaceStateNavigationButtons.swift

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+import Foundation
+import UIKit
+import Postbox
+import TelegramCore
+import SyncCore
+import TelegramPresentationData
+import AccountContext
+
+enum ChatNavigationButtonAction: Equatable {
+    case openChatInfo(expandAvatar: Bool)
+    case clearHistory
+    case clearCache
+    case cancelMessageSelection
+    case search
+    case dismiss
+    case toggleInfoPanel
+}
+
+struct ChatNavigationButton: Equatable {
+    let action: ChatNavigationButtonAction
+    let buttonItem: UIBarButtonItem
+    
+    static func ==(lhs: ChatNavigationButton, rhs: ChatNavigationButton) -> Bool {
+        return lhs.action == rhs.action && lhs.buttonItem === rhs.buttonItem
+    }
+}
+
+func leftNavigationButtonForChatInterfaceState(_ presentationInterfaceState: ChatPresentationInterfaceState, subject: ChatControllerSubject?, strings: PresentationStrings, currentButton: ChatNavigationButton?, target: Any?, selector: Selector?) -> ChatNavigationButton? {
+    if let _ = presentationInterfaceState.interfaceState.selectionState {
+        if let currentButton = currentButton, currentButton.action == .clearHistory {
+            return currentButton
+        } else if let peer = presentationInterfaceState.renderedPeer?.peer {
+            let canClear: Bool
+            var title = strings.Conversation_ClearAll
+            if presentationInterfaceState.isScheduledMessages {
+                canClear = true
+                title = strings.ScheduledMessages_ClearAll
+            } else {
+                if peer is TelegramUser || peer is TelegramGroup || peer is TelegramSecretChat {
+                    canClear = true
+                } else if let peer = peer as? TelegramChannel, case .group = peer.info, peer.addressName == nil && presentationInterfaceState.peerGeoLocation == nil {
+                    canClear = true
+                } else {
+                    canClear = false
+                }
+            }
+            
+            if canClear {
+                return ChatNavigationButton(action: .clearHistory, buttonItem: UIBarButtonItem(title: title, style: .plain, target: target, action: selector))
+            } else {
+                title = strings.Conversation_ClearCache
+                return ChatNavigationButton(action: .clearCache, buttonItem: UIBarButtonItem(title: title, style: .plain, target: target, action: selector))
+            }
+        }
+    }
+    /*if let subject = subject, case .scheduledMessages = subject {
+        if let currentButton = currentButton, currentButton.action == .dismiss {
+            return currentButton
+        } else {
+            return ChatNavigationButton(action: .dismiss, buttonItem: UIBarButtonItem(title: strings.Common_Done, style: .plain, target: target, action: selector))
+        }
+    }*/
+    return nil
+}
+
+func rightNavigationButtonForChatInterfaceState(_ presentationInterfaceState: ChatPresentationInterfaceState, strings: PresentationStrings, currentButton: ChatNavigationButton?, target: Any?, selector: Selector?, chatInfoNavigationButton: ChatNavigationButton?) -> ChatNavigationButton? {
+    if let _ = presentationInterfaceState.interfaceState.selectionState {
+        if let currentButton = currentButton, currentButton.action == .cancelMessageSelection {
+            return currentButton
+        } else {
+            return ChatNavigationButton(action: .cancelMessageSelection, buttonItem: UIBarButtonItem(title: strings.Common_Cancel, style: .plain, target: target, action: selector))
+        }
+    }
+    
+    if presentationInterfaceState.isScheduledMessages {
+        return chatInfoNavigationButton
+    }
+    
+    if case .standard(true) = presentationInterfaceState.mode {
+        return chatInfoNavigationButton
+    } else if let peer = presentationInterfaceState.renderedPeer?.peer {
+        if presentationInterfaceState.accountPeerId == peer.id {
+            if presentationInterfaceState.isScheduledMessages {
+                return chatInfoNavigationButton
+            } else {
+                let buttonItem = UIBarButtonItem(image: PresentationResourcesRootController.navigationCompactSearchIcon(presentationInterfaceState.theme), style: .plain, target: target, action: selector)
+                buttonItem.accessibilityLabel = strings.Conversation_Search
+                return ChatNavigationButton(action: .search, buttonItem: buttonItem)
+            }
+        }
+    }
+
+    return chatInfoNavigationButton
+}