Add RoomChangeRolesScreen. (#2534)

Not part of a flow yet, just the screen.
2026-11-03 06:55:59 +00:00 · 2024-03-07 16:24:05 +00:00
parent 063b3732b1
commit 046f1dd533
19 changed files with 904 additions and 0 deletions
@@ -0,0 +1,133 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+import SwiftUI
+
+typealias RoomChangeRolesScreenViewModelType = StateStoreViewModel<RoomChangeRolesScreenViewState, RoomChangeRolesScreenViewAction>
+
+class RoomChangeRolesScreenViewModel: RoomChangeRolesScreenViewModelType, RoomChangeRolesScreenViewModelProtocol {
+    private let roomProxy: RoomProxyProtocol
+    private let userIndicatorController: UserIndicatorControllerProtocol
+    
+    private let actionsSubject: PassthroughSubject<RoomChangeRolesScreenViewModelAction, Never> = .init()
+    var actionsPublisher: AnyPublisher<RoomChangeRolesScreenViewModelAction, Never> {
+        actionsSubject.eraseToAnyPublisher()
+    }
+
+    init(mode: RoomMemberDetails.Role, roomProxy: RoomProxyProtocol, userIndicatorController: UserIndicatorControllerProtocol) {
+        guard mode != .user else { fatalError("Invalid screen configuration: \(mode)") }
+        
+        self.roomProxy = roomProxy
+        self.userIndicatorController = userIndicatorController
+        
+        super.init(initialViewState: RoomChangeRolesScreenViewState(mode: mode,
+                                                                    members: [],
+                                                                    bindings: .init()))
+        
+        roomProxy.membersPublisher
+            .receive(on: DispatchQueue.main)
+            .sink { [weak self] members in
+                self?.updateMembers(members)
+            }
+            .store(in: &cancellables)
+        
+        roomProxy.timeline.timelineProvider.membershipChangePublisher.sink { [roomProxy] in
+            Task { await roomProxy.updateMembers() }
+        }
+        .store(in: &cancellables)
+        
+        updateMembers(roomProxy.membersPublisher.value)
+    }
+    
+    // MARK: - Public
+    
+    override func process(viewAction: RoomChangeRolesScreenViewAction) {
+        MXLog.info("View model: received view action: \(viewAction)")
+        
+        switch viewAction {
+        case .toggleMember(let member):
+            toggleMember(member)
+        case .demoteMember(let member):
+            demoteMember(member)
+        case .save:
+            Task { await save() }
+        }
+    }
+    
+    // MARK: - Private
+    
+    private func updateMembers(_ members: [RoomMemberProxyProtocol]) {
+        state.members = members.sorted().compactMap { member in
+            guard member.membership == .join, member.userID != roomProxy.ownUserID else { return nil }
+            return RoomMemberDetails(withProxy: member)
+        }
+    }
+    
+    private func toggleMember(_ member: RoomMemberDetails) {
+        if state.membersToPromote.contains(member) {
+            state.membersToPromote.remove(member)
+        } else if state.membersToDemote.contains(member) {
+            state.membersToDemote.remove(member)
+            state.lastPromotedMember = member
+        } else if member.role == state.mode {
+            state.membersToDemote.insert(member)
+        } else {
+            state.membersToPromote.insert(member)
+            state.lastPromotedMember = member
+        }
+    }
+    
+    private func demoteMember(_ member: RoomMemberDetails) {
+        if state.membersToPromote.contains(member) {
+            state.membersToPromote.remove(member)
+        } else {
+            state.membersToDemote.insert(member)
+        }
+    }
+    
+    private func save() async {
+        showSavingIndicator()
+        
+        defer {
+            hideSavingIndicator()
+        }
+        
+        let promotingUpdates = state.membersToPromote.map { ($0.id, state.mode.rustPowerLevel) }
+        let demotingUpdates = state.membersToDemote.map { ($0.id, Int64(0)) }
+        switch await roomProxy.updatePowerLevelsForUsers(promotingUpdates + demotingUpdates) {
+        case .success:
+            MXLog.info("Success")
+        case .failure:
+            context.alertInfo = AlertInfo(id: .generic)
+        }
+    }
+    
+    // MARK: Loading indicator
+    
+    private static let indicatorID = "SavingRoomRoles"
+    
+    private func showSavingIndicator() {
+        userIndicatorController.submitIndicator(UserIndicator(id: Self.indicatorID,
+                                                              type: .modal(progress: .indeterminate, interactiveDismissDisabled: true, allowsInteraction: false),
+                                                              title: L10n.commonSaving,
+                                                              persistent: true))
+    }
+    
+    private func hideSavingIndicator() {
+        userIndicatorController.retractIndicatorWithId(Self.indicatorID)
+    }
+}