Files
letro-ios/ElementX/Sources/Services/Client/SlidingSyncViewProxy.swift
Doug 4b278a9fd1 Improvements to logging (#457)
* Use `.info` logging in most places.
* Remove old objc logging support.
* Fix table view controller.
* Make sure timeline item content isn't logged.
* Add tests.
2023-01-17 09:28:01 +00:00

113 lines
4.1 KiB
Swift

//
// 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 Foundation
import MatrixRustSDK
private class SlidingSyncViewObserver: SlidingSyncViewRoomListObserver, SlidingSyncViewStateObserver, SlidingSyncViewRoomsCountObserver {
/// Publishes room list diffs as they come in through sliding sync
let roomListDiffPublisher = PassthroughSubject<SlidingSyncViewRoomsListDiff, Never>()
/// Publishes the current state of sliding sync, such as whether its catching up or live.
let stateUpdatePublisher = CurrentValueSubject<SlidingSyncState, Never>(.cold)
/// Publishes the number of available rooms
let countUpdatePublisher = CurrentValueSubject<UInt, Never>(0)
// MARK: - SlidingSyncViewRoomListObserver
func didReceiveUpdate(diff: SlidingSyncViewRoomsListDiff) {
MXLog.info("Received room diff")
roomListDiffPublisher.send(diff)
}
// MARK: - SlidingSyncViewStateObserver
func didReceiveUpdate(newState: SlidingSyncState) {
MXLog.info("Updated state: \(newState)")
stateUpdatePublisher.send(newState)
}
// MARK: - SlidingSyncViewRoomsCountObserver
func didReceiveUpdate(count: UInt32) {
MXLog.info("Updated room count: \(count)")
countUpdatePublisher.send(UInt(count))
}
}
class SlidingSyncViewProxy {
private let slidingSync: SlidingSyncProtocol
private let slidingSyncView: SlidingSyncViewProtocol
private var listUpdateObserverToken: StoppableSpawn?
private var stateUpdateObserverToken: StoppableSpawn?
private var countUpdateObserverToken: StoppableSpawn?
private var cancellables = Set<AnyCancellable>()
let diffPublisher = PassthroughSubject<SlidingSyncViewRoomsListDiff, Never>()
let statePublisher = PassthroughSubject<SlidingSyncState, Never>()
let countPublisher = PassthroughSubject<UInt, Never>()
let visibleRangeUpdatePublisher = PassthroughSubject<Void, Never>()
deinit {
listUpdateObserverToken?.cancel()
stateUpdateObserverToken?.cancel()
countUpdateObserverToken?.cancel()
}
init(slidingSync: SlidingSyncProtocol, slidingSyncView: SlidingSyncViewProtocol) {
self.slidingSync = slidingSync
self.slidingSyncView = slidingSyncView
let slidingSyncViewObserver = SlidingSyncViewObserver()
slidingSyncViewObserver.stateUpdatePublisher
.subscribe(statePublisher)
.store(in: &cancellables)
slidingSyncViewObserver.countUpdatePublisher
.subscribe(countPublisher)
.store(in: &cancellables)
slidingSyncViewObserver.roomListDiffPublisher
.subscribe(diffPublisher)
.store(in: &cancellables)
listUpdateObserverToken = slidingSyncView.observeRoomList(observer: slidingSyncViewObserver)
stateUpdateObserverToken = slidingSyncView.observeState(observer: slidingSyncViewObserver)
countUpdateObserverToken = slidingSyncView.observeRoomsCount(observer: slidingSyncViewObserver)
}
func currentRoomsList() -> [RoomListEntry] {
slidingSyncView.currentRoomsList()
}
func roomForIdentifier(_ identifier: String) throws -> SlidingSyncRoomProtocol? {
try slidingSync.getRoom(roomId: identifier)
}
func updateVisibleRange(_ range: Range<Int>) {
MXLog.info("Setting sliding sync view range to \(range)")
slidingSyncView.setRange(start: UInt32(range.lowerBound), end: UInt32(range.upperBound))
visibleRangeUpdatePublisher.send(())
}
}