Files
element-x-ios/ElementX/Sources/Screens/Timeline/TimelineInteractionHandler.swift
Mauro 426fdc70a1 Add a developer option and selection mode for timeline messages (#6102)
* Add a developer option and selection mode for timeline messages

First step of the multi-select messages feature (element-meta#3255, iOS
counterpart of element-x-android#6918). Everything is gated behind the new
`messageMultiSelectEnabled` developer option and nothing changes while it
is off.

- Adds a "Select" action to the timeline item menu for remote messages in
  the room, focused and thread timelines. Choosing it enters selection
  mode with that message selected.
- While selecting, every bubbled row shows a checkbox on its leading edge
  and tapping or long pressing a row toggles it. State events, redacted
  messages, live locations, unsupported events and local echoes cannot be
  selected and stay inert. Selected rows get the accent background.
- The navigation bar swaps to a Cancel button and an "N selected" title,
  the back button is hidden and the composer is removed until the
  selection ends (Cancel or deselecting the last item). This is the hook
  where the bulk action bar will land in the next PR.
- The selection is capped at 30 messages, showing a toast when the cap
  is hit, and is cleared if the developer option is switched off.
- The selection state lives in `TimelineViewModel` so room and thread
  timelines share the behaviour without extra plumbing.

Includes unit tests for the menu action gating and the selection state
transitions, plus RoomScreen and bubble styler previews for the new state.

* Harden the timeline selection mode after review

- Reconcile the selection with timeline updates: selected messages that
  become unselectable (e.g. redacted) are dropped, and the selection is
  cleared when the timeline is swapped for a focused or live one, so the
  count can never refer to items that aren't on screen.
- Keep the composer mounted but collapsed while selecting, instead of
  removing it from the hierarchy. This preserves the draft and composer
  mode and avoids the disappear side effects. The footer with the identity
  warnings stays visible.
- Give the long press modifier an `isEnabled` flag so the recogniser is
  disabled while selecting, rather than only skipping the action while
  still animating and buzzing.
- Gate the Mac context menu on the selection like the other gestures.
- VoiceOver: a selectable bubble becomes a button carrying the selected
  trait whose default action toggles it, non-selectable rows lose their
  message actions while selecting, and reactions, thread summaries and the
  checkbox are hidden from the accessibility tree in selection mode.

* Stop voice message recordings when entering selection mode

The composer is collapsed rather than removed while selecting, so an
in-progress recording would otherwise keep the microphone open out of
sight. Entering the selection now stops the recording, which moves the
composer to the preview state so the message is still there to play or
send once the selection ends. Playback of voice messages is unaffected.

* Use the translated strings for the message selection mode

The selection strings have been imported to Localazy, so the untranslated
placeholders are dropped in favour of `action_select`,
`screen_room_maximum_messages_selected` and the `screen_room_selection_count`
plural. Only these keys are taken from the download to keep the change
focused.

* Apply review suggestions to the message selection mode

Addresses the first review round on the selection mode:

- Undecryptable messages are no longer selectable, as none of the bulk
  actions can be taken on them from the single item menu either.
- Renames for clarity: the menu action is `selectMessages` (leaving room
  for a future `selectText`), the view action is `startSelection`, the
  state exposes `contains(_:)`, `limit` and `isAtLimit`, and the composer
  collapsing modifier is `collapsedInPlace(_:)`.
- `canSelectMessages` uses a switch expression, the selection state doc
  comment refers to a feature flag rather than Labs, the recording helper
  doc describes only what it does, and `toggleSelection()` moves below
  the subviews.

* Keep the accessibility labels of timeline items while selecting

The selection mode used to replace each item's accessibility body with a
plain combined element, dropping the sender name representation and the
gallery label. The per item labelling now always applies, and the selection
only changes the interaction on top of it: the message actions are offered
as before, or the item becomes a button carrying the selected trait whose
default action toggles it. Polls and galleries collapse into a single
element only while selecting, as their children are inert then.

* Keep the timeline types within the lint limits after rebasing

The redaction reason work on develop grew the menu action handler and the
timeline view model right up to SwiftLint's size limits, so the selection
additions tipped them over. The `selectMessages` case now shares the
`downloadMedia` break and the selection flag subscription lives in the
selection extension.

* Fix the snapshot regressions from the selection mode

- Drop `geometryGroup()` from the bubble row: it stopped the avatar
  placeholder initial from rendering, which showed up as a mismatch in
  every timeline item snapshot.
- Collapse the composer with opacity instead of clipping, as the clip also
  removed the composer background from the home indicator area while the
  composer was fully visible.
- Keep the timeline item menu preview on the default flag-off state so the
  existing menu snapshots stay valid.
- Record the new "Selecting" room screen and "Selection" bubble snapshots
  on the same iPhone SE simulator CI uses.
2026-09-09 13:36:57 +02:00

740 lines
35 KiB
Swift

//
// Copyright 2025 Element Creations Ltd.
// Copyright 2023-2025 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
// Please see LICENSE files in the repository root for full details.
//
import Combine
import UIKit
enum TimelineInteractionHandlerAction {
case composer(action: TimelineComposerAction)
case displayEmojiPicker(selectedEmojis: Set<String>, continuation: EmojiPickerScreenContinuation)
case displayReportContent(itemID: TimelineItemIdentifier, senderID: String)
case displayMessageForwarding(itemID: TimelineItemIdentifier)
case displayMediaUploadPreviewScreen(mediaURLs: [URL])
case displayEditPollForm(eventID: String, poll: Poll)
case showActionMenu(TimelineItemActionMenuInfo)
case showRedactConfirmation(itemID: TimelineItemIdentifier)
case showDebugInfo(TimelineItemDebugInfo)
case displayAudioRecorderPermissionError
case displayErrorToast(String)
case viewInRoomTimeline(eventID: String)
case displayThread(itemID: TimelineItemIdentifier)
case showTranslation(text: String)
}
/// The interaction handler groups logic for dealing with various actions the user can take on a timeline's
/// view that would've normally been part of the ``TimelineViewModel``
class TimelineInteractionHandler {
private let roomProxy: JoinedRoomProxyProtocol
private let timelineController: TimelineControllerProtocol
private let userSession: UserSessionProtocol
private let mediaPlayerProvider: MediaPlayerProviderProtocol
private let voiceMessageRecorder: VoiceMessageRecorderProtocol
private let userIndicatorController: UserIndicatorControllerProtocol
private let appMediator: AppMediatorProtocol
private let appSettings: AppSettings
private let analyticsService: AnalyticsServiceProtocol
private let emojiProvider: EmojiProviderProtocol
private let linkMetadataProvider: LinkMetadataProviderProtocol
private let timelineControllerFactory: TimelineControllerFactoryProtocol
private let pollInteractionHandler: PollInteractionHandlerProtocol
private let actionsSubject: PassthroughSubject<TimelineInteractionHandlerAction, Never> = .init()
var actions: AnyPublisher<TimelineInteractionHandlerAction, Never> {
actionsSubject.eraseToAnyPublisher()
}
private var voiceMessageRecorderObserver: AnyCancellable? {
didSet {
appMediator.setIdleTimerDisabled(voiceMessageRecorderObserver != nil)
}
}
private var resumeVoiceMessagePlaybackAfterScrubbing = false
/// The voice message playback that was last asked for, and whether the player has begun it.
private enum VoiceMessagePlayback {
case requested(TimelineItemIdentifier)
case playing(TimelineItemIdentifier)
}
private var voiceMessagePlayback: VoiceMessagePlayback?
private var audioPlayerActionsCancellable: AnyCancellable?
private var emojiPickerCancellable: AnyCancellable?
init(roomProxy: JoinedRoomProxyProtocol,
timelineController: TimelineControllerProtocol,
userSession: UserSessionProtocol,
mediaPlayerProvider: MediaPlayerProviderProtocol,
voiceMessageRecorder: VoiceMessageRecorderProtocol,
userIndicatorController: UserIndicatorControllerProtocol,
appMediator: AppMediatorProtocol,
appSettings: AppSettings,
analyticsService: AnalyticsServiceProtocol,
emojiProvider: EmojiProviderProtocol,
linkMetadataProvider: LinkMetadataProviderProtocol,
timelineControllerFactory: TimelineControllerFactoryProtocol) {
self.roomProxy = roomProxy
self.timelineController = timelineController
self.userSession = userSession
self.mediaPlayerProvider = mediaPlayerProvider
self.voiceMessageRecorder = voiceMessageRecorder
self.userIndicatorController = userIndicatorController
self.appMediator = appMediator
self.appSettings = appSettings
self.analyticsService = analyticsService
self.emojiProvider = emojiProvider
self.linkMetadataProvider = linkMetadataProvider
self.timelineControllerFactory = timelineControllerFactory
pollInteractionHandler = PollInteractionHandler(analyticsService: analyticsService,
timelineController: timelineController)
}
// MARK: Timeline Item Action Menu
func displayTimelineItemActionMenu(for itemID: TimelineItemIdentifier) {
Task {
guard let timelineItem = timelineController.timelineItems.firstUsingStableID(itemID),
let eventTimelineItem = timelineItem as? EventBasedTimelineItemProtocol else {
// Don't show a menu for non-event based items.
return
}
actionsSubject.send(.composer(action: .removeFocus))
actionsSubject.send(.showActionMenu(.init(item: eventTimelineItem)))
}
}
func redact(_ itemID: TimelineItemIdentifier, reason: String?) {
// Redacting needs the event alone, so it works even when the item isn't part of this timeline,
// such as one held by a media preview that was built from a different one.
guard case let .event(_, eventOrTransactionID) = itemID else { fatalError() }
Task { await timelineController.redact(eventOrTransactionID, reason: reason) }
}
// swiftlint:disable:next cyclomatic_complexity
func handleTimelineItemMenuAction(_ action: TimelineItemMenuAction, itemID: TimelineItemIdentifier) {
if case .redact = action {
// An unsent message is only dropped from the send queue. No redaction event reaches
// the server, so there is nothing to attach a reason to, and asking for one would
// only delay the abort while the message might still go out.
if case .event(_, .eventID) = itemID {
actionsSubject.send(.showRedactConfirmation(itemID: itemID))
} else {
redact(itemID, reason: nil)
}
return
}
guard let timelineItem = timelineController.timelineItems.firstUsingStableID(itemID),
let eventTimelineItem = timelineItem as? EventBasedTimelineItemProtocol else {
return
}
switch action {
case .copy:
guard let messageTimelineItem = timelineItem as? EventBasedMessageTimelineItemProtocol else { return }
UIPasteboard.general.string = messageTimelineItem.body
case .copyCaption:
guard let messageTimelineItem = timelineItem as? EventBasedMessageTimelineItemProtocol,
let caption = messageTimelineItem.mediaCaption else {
return
}
UIPasteboard.general.string = caption
case .edit, .addCaption, .editCaption, .editPoll:
switch timelineItem {
case let messageTimelineItem as EventBasedMessageTimelineItemProtocol:
processEditMessageEvent(messageTimelineItem)
case let pollTimelineItem as PollRoomTimelineItem:
guard let eventID = pollTimelineItem.id.eventID else {
MXLog.error("Cannot edit poll with id: \(timelineItem.id)")
return
}
actionsSubject.send(.displayEditPollForm(eventID: eventID, poll: pollTimelineItem.poll))
default:
MXLog.error("Cannot edit item with id: \(timelineItem.id)")
}
case .removeCaption:
guard case let .event(_, eventOrTransactionID) = timelineItem.id else {
MXLog.error("Failed removing caption, missing event ID")
return
}
Task { await timelineController.removeCaption(eventOrTransactionID) }
case .copyPermalink:
guard let eventID = eventTimelineItem.id.eventID else {
actionsSubject.send(.displayErrorToast(L10n.errorFailedCreatingThePermalink))
return
}
Task {
guard case let .success(permalinkURL) = await roomProxy.matrixToEventPermalink(eventID) else {
actionsSubject.send(.displayErrorToast(L10n.errorFailedCreatingThePermalink))
return
}
UIPasteboard.general.url = permalinkURL
}
case .redact:
break // Handled above, before the timeline item is looked up.
case .reply:
guard let eventID = eventTimelineItem.id.eventID else { return }
let replyInfo = buildReplyInfo(for: eventTimelineItem)
let replyDetails = TimelineItemReplyDetails.loaded(sender: eventTimelineItem.sender, eventID: eventID, eventContent: replyInfo.type)
actionsSubject.send(.composer(action: .setMode(mode: .reply(eventID: eventID, replyDetails: replyDetails, isThread: replyInfo.isThread))))
case .replyInThread:
actionsSubject.send(.displayThread(itemID: eventTimelineItem.id))
case .forward(let itemID):
actionsSubject.send(.displayMessageForwarding(itemID: itemID))
case .viewSource:
let debugInfo = timelineController.debugInfo(for: eventTimelineItem.id)
MXLog.info("Showing debug info for \(eventTimelineItem.id)")
actionsSubject.send(.showDebugInfo(debugInfo))
case .report:
actionsSubject.send(.displayReportContent(itemID: itemID, senderID: eventTimelineItem.sender.id))
case .react:
displayEmojiPicker(for: itemID)
case .toggleReaction(let key):
guard case let .event(_, eventOrTransactionID) = itemID else { fatalError() }
Task { await timelineController.toggleReaction(key, to: eventOrTransactionID) }
case .endPoll(let pollStartID):
endPoll(pollStartID: pollStartID)
case .pin:
analyticsService.trackPinUnpinEvent(.init(from: timelineController.timelineKind == .pinned ? .MessagePinningList : .Timeline,
kind: .Pin))
guard let eventID = itemID.eventID else { return }
Task { await timelineController.pin(eventID: eventID) }
case .unpin:
analyticsService.trackPinUnpinEvent(.init(from: timelineController.timelineKind == .pinned ? .MessagePinningList : .Timeline,
kind: .Unpin))
guard let eventID = itemID.eventID else { return }
Task { await timelineController.unpin(eventID: eventID) }
case .viewInRoomTimeline:
analyticsService.trackInteraction(name: .PinnedMessageListViewTimeline)
guard let eventID = itemID.eventID else { return }
actionsSubject.send(.viewInRoomTimeline(eventID: eventID))
case .downloadMedia, .selectMessages:
break // Handled by the media preview screen and the TimelineViewModel respectively.
case .translate:
guard let messageTimelineItem = timelineItem as? EventBasedMessageTimelineItemProtocol else { return }
actionsSubject.send(.showTranslation(text: messageTimelineItem.body))
}
if action.switchToDefaultComposer {
actionsSubject.send(.composer(action: .setMode(mode: .default)))
}
}
private func processEditMessageEvent(_ messageTimelineItem: EventBasedMessageTimelineItemProtocol) {
guard case let .event(_, eventOrTransactionID) = messageTimelineItem.id else {
MXLog.error("Failed editing message, missing event id")
return
}
let text: String
var htmlText: String?
var editType = ComposerMode.EditType.default
switch messageTimelineItem.contentType {
case .text(let content):
text = content.body
htmlText = content.formattedBodyHTMLString
case .emote(let content):
text = "/me " + content.body
case .audio(let content):
text = content.caption ?? ""
htmlText = content.formattedCaptionHTMLString
editType = text.isEmpty ? .addCaption : .editCaption
case .file(let content):
text = content.caption ?? ""
htmlText = content.formattedCaptionHTMLString
editType = text.isEmpty ? .addCaption : .editCaption
case .image(let content):
text = content.caption ?? ""
htmlText = content.formattedCaptionHTMLString
editType = text.isEmpty ? .addCaption : .editCaption
case .video(let content):
text = content.caption ?? ""
htmlText = content.formattedCaptionHTMLString
editType = text.isEmpty ? .addCaption : .editCaption
case .gallery(let content):
text = content.caption ?? ""
htmlText = content.formattedCaptionHTMLString
editType = text.isEmpty ? .addCaption : .editCaption
default:
text = messageTimelineItem.body
}
// Always update the mode first and then the text so that the composer has time to save the text draft
actionsSubject.send(.composer(action: .setMode(mode: .edit(originalEventOrTransactionID: eventOrTransactionID, type: editType))))
actionsSubject.send(.composer(action: .setText(plainText: text, htmlText: htmlText)))
}
// MARK: Polls
func sendPollResponse(pollStartID: String, answerIDs: [String]) {
Task {
let sendPollResponseResult = await pollInteractionHandler.sendPollResponse(pollStartID: pollStartID, answerIDs: answerIDs)
switch sendPollResponseResult {
case .success:
break
case .failure:
actionsSubject.send(.displayErrorToast(L10n.errorUnknown))
}
}
}
func endPoll(pollStartID: String) {
Task {
let endPollResult = await pollInteractionHandler.endPoll(pollStartID: pollStartID)
switch endPollResult {
case .success:
break
case .failure:
actionsSubject.send(.displayErrorToast(L10n.errorUnknown))
}
}
}
// MARK: Pasting and dropping
func handlePasteOrDrop(_ providers: [NSItemProvider]) {
Task {
let loadingIndicatorIdentifier = UUID().uuidString
self.userIndicatorController.submitIndicator(UserIndicator(id: loadingIndicatorIdentifier, type: .modal, title: L10n.commonLoading, persistent: true))
defer {
self.userIndicatorController.retractIndicatorWithId(loadingIndicatorIdentifier)
}
var mediaURLs = [URL]()
for provider in providers {
if let fileURL = await provider.storeData() {
mediaURLs.append(fileURL)
} else {
MXLog.error("Failed storing NSItemProvider data \(provider)")
self.actionsSubject.send(.displayErrorToast(L10n.screenRoomErrorFailedProcessingMedia))
}
}
if !mediaURLs.isEmpty {
self.actionsSubject.send(.displayMediaUploadPreviewScreen(mediaURLs: mediaURLs))
}
}
}
// MARK: Voice messages
private func handleVoiceMessageRecorderAction(_ action: VoiceMessageRecorderAction) {
MXLog.debug("handling voice recorder action: \(action) - (audio)")
switch action {
case .didStartRecording(let audioRecorder):
let audioRecordState = AudioRecorderState()
audioRecordState.attachAudioRecorder(audioRecorder)
actionsSubject.send(.composer(action: .setMode(mode: .recordVoiceMessage(state: audioRecordState))))
case .didStopRecording(let previewAudioPlayerState, let url):
actionsSubject.send(.composer(action: .setMode(mode: .previewVoiceMessage(state: previewAudioPlayerState, waveform: .url(url), isUploading: false))))
voiceMessageRecorderObserver = nil
case .didFailWithError(let error):
switch error {
case .audioRecorderError(.recordPermissionNotGranted):
MXLog.info("permission to record audio has not been granted.")
actionsSubject.send(.displayAudioRecorderPermissionError)
default:
MXLog.error("failed to start voice message recording. \(error)")
actionsSubject.send(.composer(action: .setMode(mode: .default)))
}
}
}
func startRecordingVoiceMessage() async {
voiceMessageRecorderObserver = voiceMessageRecorder.actions
.receive(on: DispatchQueue.main)
.sink { [weak self] action in
self?.handleVoiceMessageRecorderAction(action)
}
await voiceMessageRecorder.startRecording()
}
func stopRecordingVoiceMessage() async {
await voiceMessageRecorder.stopRecording()
}
/// Stops the recording when one is in progress, moving the composer to the preview state.
func stopRecordingVoiceMessageIfNeeded() async {
guard voiceMessageRecorder.isRecording else { return }
await voiceMessageRecorder.stopRecording()
}
func cancelRecordingVoiceMessage() async {
await voiceMessageRecorder.cancelRecording()
voiceMessageRecorderObserver = nil
actionsSubject.send(.composer(action: .setMode(mode: .default)))
}
func deleteCurrentVoiceMessage() async {
if voiceMessageRecorder.isRecording {
await voiceMessageRecorder.cancelRecording()
} else {
await voiceMessageRecorder.deleteRecording()
}
voiceMessageRecorderObserver = nil
actionsSubject.send(.composer(action: .setMode(mode: .default)))
}
func sendCurrentVoiceMessage() async {
guard let audioPlayerState = voiceMessageRecorder.previewAudioPlayerState, let recordingURL = voiceMessageRecorder.recordingURL else {
actionsSubject.send(.displayErrorToast(L10n.errorFailedUploadingVoiceMessage))
return
}
analyticsService.trackComposer(inThread: false,
isEditing: false,
isReply: false,
messageType: .VoiceMessage,
startsThread: nil)
actionsSubject.send(.composer(action: .setMode(mode: .previewVoiceMessage(state: audioPlayerState, waveform: .url(recordingURL), isUploading: true))))
await voiceMessageRecorder.stopPlayback()
switch await voiceMessageRecorder.sendVoiceMessage(timelineController: timelineController, audioConverter: AudioConverter()) {
case .success:
await deleteCurrentVoiceMessage()
case .failure(let error):
MXLog.error("failed to send the voice message. \(error)")
actionsSubject.send(.composer(action: .setMode(mode: .previewVoiceMessage(state: audioPlayerState, waveform: .url(recordingURL), isUploading: false))))
actionsSubject.send(.displayErrorToast(L10n.errorFailedUploadingVoiceMessage))
}
}
func startPlayingRecordedVoiceMessage() async {
await mediaPlayerProvider.detachAllStates(except: voiceMessageRecorder.previewAudioPlayerState)
if case .failure(let error) = await voiceMessageRecorder.startPlayback() {
MXLog.error("failed to play recorded voice message. \(error)")
}
}
func pausePlayingRecordedVoiceMessage() {
voiceMessageRecorder.pausePlayback()
}
func seekRecordedVoiceMessage(to progress: Double) async {
await mediaPlayerProvider.detachAllStates(except: voiceMessageRecorder.previewAudioPlayerState)
await voiceMessageRecorder.seekPlayback(to: progress)
}
func scrubVoiceMessagePlayback(scrubbing: Bool) async {
guard let audioPlayerState = voiceMessageRecorder.previewAudioPlayerState else {
return
}
if scrubbing {
if audioPlayerState.playbackState == .playing {
resumeVoiceMessagePlaybackAfterScrubbing = true
pausePlayingRecordedVoiceMessage()
}
} else {
if resumeVoiceMessagePlaybackAfterScrubbing {
resumeVoiceMessagePlaybackAfterScrubbing = false
await startPlayingRecordedVoiceMessage()
}
}
}
// MARK: Audio Playback
func changePlaybackSpeed(for itemID: TimelineItemIdentifier) {
let nextSpeed = appSettings.voiceMessagePlaybackSpeed.next
appSettings.voiceMessagePlaybackSpeed = nextSpeed
audioPlayerState(for: itemID)?.setPlaybackSpeed(nextSpeed)
}
func playPauseAudio(for itemID: TimelineItemIdentifier) async {
MXLog.info("Toggle play/pause audio for itemID \(itemID)")
guard let timelineItem = timelineController.timelineItems.firstUsingStableID(itemID) else {
fatalError("TimelineItem \(itemID) not found")
}
guard let voiceMessageRoomTimelineItem = timelineItem as? VoiceMessageRoomTimelineItem else {
fatalError("Invalid TimelineItem type for itemID \(itemID) (expecting `VoiceMessageRoomTimelineItem` but found \(type(of: timelineItem)) instead")
}
guard let source = voiceMessageRoomTimelineItem.content.source else {
MXLog.error("Cannot start voice message playback, source is not defined for itemID \(itemID)")
return
}
// Loading a new message tears the player down, which cancels any autoplay that was pending for the previous one.
voiceMessagePlayback = .requested(itemID)
let audioPlayer = mediaPlayerProvider.player
// Observe the player lazily so that the mocks used by the previews and the UI tests don't need one.
if audioPlayerActionsCancellable == nil {
audioPlayerActionsCancellable = audioPlayer.actions
.sink { [weak self] action in
Task { await self?.handleAudioPlayerAction(action) }
}
}
// Stop any recording in progress
if voiceMessageRecorder.isRecording {
await voiceMessageRecorder.stopRecording()
}
guard let audioPlayerState = audioPlayerState(for: itemID) else {
fatalError("Audio player state not found for \(itemID)")
}
// Ensure this one is attached
if !audioPlayerState.isAttached {
audioPlayerState.attachAudioPlayer(audioPlayer)
}
// Detach all other states
await mediaPlayerProvider.detachAllStates(except: audioPlayerState)
guard audioPlayer.sourceURL == source.url, audioPlayer.state != .error else {
// Load content
do {
MXLog.info("Loading voice message audio content from source for itemID \(itemID)")
let url = try await userSession.voiceMessageMediaManager.loadVoiceMessageFromSource(source, body: nil)
// Make sure that the player is still attached, as it may have been detached while waiting for the voice message to be loaded.
if audioPlayerState.isAttached {
audioPlayer.load(sourceURL: source.url, playbackURL: url, autoplay: true)
}
} catch {
MXLog.error("Failed to load voice message: \(error)")
audioPlayerState.reportError()
}
return
}
if audioPlayer.state == .playing {
audioPlayer.pause()
} else {
audioPlayer.play()
}
}
private func handleAudioPlayerAction(_ action: AudioPlayerAction) async {
switch action {
case .didStartPlaying:
if case .requested(let itemID) = voiceMessagePlayback {
voiceMessagePlayback = .playing(itemID)
}
case .didFinishPlaying:
// Anything else means the player was torn down to play something different
// rather than reaching the end of the message it had started.
guard case .playing(let finishedItemID) = voiceMessagePlayback else { return }
voiceMessagePlayback = nil
await autoplayVoiceMessage(following: finishedItemID)
case .didStartLoading, .didFinishLoading, .didPausePlaying, .didStopPlaying, .didFailWithError:
break
}
}
/// Plays the voice message directly following the given one.
private func autoplayVoiceMessage(following finishedItemID: TimelineItemIdentifier) async {
// The playback may have been taken over by another player state, such as the recorder's preview.
guard audioPlayerState(for: finishedItemID)?.isAttached == true,
let nextVoiceMessage = timelineController.timelineItems.voiceMessageDirectlyFollowing(finishedItemID) else {
return
}
MXLog.info("Autoplaying the voice message following itemID \(finishedItemID)")
mediaPlayerProvider.play(soundEffect: .tink)
await playPauseAudio(for: nextVoiceMessage.id)
}
func seekAudio(for itemID: TimelineItemIdentifier, progress: Double) async {
guard let playerState = mediaPlayerProvider.playerState(for: .timelineItemIdentifier(itemID)) else {
return
}
await mediaPlayerProvider.detachAllStates(except: playerState)
await playerState.updateState(progress: progress)
}
func audioPlayerState(for itemID: TimelineItemIdentifier) -> AudioPlayerState? {
guard let timelineItem = timelineController.timelineItems.firstUsingStableID(itemID) else {
MXLog.error("TimelineItem \(itemID) not found")
return nil
}
guard let voiceMessageRoomTimelineItem = timelineItem as? VoiceMessageRoomTimelineItem else {
MXLog.error("Invalid TimelineItem type (expecting `VoiceMessageRoomTimelineItem` but found \(type(of: timelineItem)) instead")
return nil
}
if let playerState = mediaPlayerProvider.playerState(for: .timelineItemIdentifier(itemID)) {
return playerState
}
let playerState = AudioPlayerState(id: .timelineItemIdentifier(itemID),
title: L10n.commonVoiceMessage,
duration: voiceMessageRoomTimelineItem.content.duration,
waveform: voiceMessageRoomTimelineItem.content.waveform,
playbackSpeed: appSettings.voiceMessagePlaybackSpeed,
playbackSpeedPublisher: appSettings.voiceMessagePlaybackSpeedPublisher)
mediaPlayerProvider.register(audioPlayerState: playerState)
return playerState
}
// MARK: Other
func displayEmojiPicker(for itemID: TimelineItemIdentifier) {
guard let timelineItem = timelineController.timelineItems.firstUsingStableID(itemID),
timelineItem.isReactable,
let eventTimelineItem = timelineItem as? EventBasedTimelineItemProtocol,
case let .event(_, eventOrTransactionID) = itemID else {
return
}
let selectedEmojis = Set(eventTimelineItem.properties.reactions.compactMap { $0.isHighlighted ? $0.key : nil })
let (stream, continuation) = AsyncStream<String>.makeStream()
actionsSubject.send(.displayEmojiPicker(selectedEmojis: selectedEmojis, continuation: continuation))
emojiPickerCancellable = Task { [weak self] in
for await emoji in stream {
await self?.timelineController.toggleReaction(emoji, to: eventOrTransactionID)
}
}
.asCancellable()
}
func processItemTap(_ itemID: TimelineItemIdentifier) async -> TimelineControllerAction {
guard let timelineItem = timelineController.timelineItems.firstUsingStableID(itemID) as? EventBasedTimelineItemProtocol else {
return .none
}
switch timelineItem {
case let item as LocationRoomTimelineItem:
guard let geoURI = item.content.geoURI else { return .none }
return .displayLocation(.init(sender: item.sender,
geoURI: geoURI,
kind: item.content.kind,
timestamp: item.timestamp))
case let item as LiveLocationRoomTimelineItem:
guard let geoURI = item.content.lastGeoURI else { return .none }
let initialLiveLocationShare = LiveLocationShare(userID: item.sender.id,
geoURI: geoURI,
timestamp: item.timestamp,
timeoutDate: item.content.timeoutDate)
return .displayLiveLocation(sender: item.sender, initialLiveLocationShare: initialLiveLocationShare)
// Galleries are included so that their attachments can be browsed as individual media.
case let item as ImageRoomTimelineItem:
return await mediaPreviewAction(for: item, messageTypes: [.image, .video, .gallery])
case let item as VideoRoomTimelineItem:
return await mediaPreviewAction(for: item, messageTypes: [.image, .video, .gallery])
case let item as AudioRoomTimelineItem:
return await mediaPreviewAction(for: item, messageTypes: [.audio, .file, .gallery])
case let item as FileRoomTimelineItem:
return await mediaPreviewAction(for: item, messageTypes: [.audio, .file, .gallery])
case let item as GalleryRoomTimelineItem:
// Only galleries are needed as the preview is scoped to the attachments of the tapped one.
return await mediaPreviewAction(for: item, messageTypes: [.gallery])
default:
return .none
}
}
// MARK: - Private
private func buildReplyInfo(for item: EventBasedTimelineItemProtocol) -> ReplyInfo {
switch item {
case let messageItem as EventBasedMessageTimelineItemProtocol:
return .init(type: .message(messageItem.contentType), isThread: messageItem.properties.isThreaded)
case let pollItem as PollRoomTimelineItem:
return .init(type: .poll(question: pollItem.poll.question), isThread: false)
default:
return .init(type: .message(.text(.init(body: item.body))), isThread: false)
}
}
private func mediaPreviewAction(for item: EventBasedMessageTimelineItemProtocol, messageTypes: [TimelineAllowedMessageType]) async -> TimelineControllerAction {
var newTimelineFocus: TimelineFocus?
var newTimelinePresentation: TimelineKind.MediaPresentation?
switch timelineController.timelineKind {
case .live:
newTimelineFocus = .live
newTimelinePresentation = .roomScreenLive
case .detached:
guard case let .event(_, eventOrTransactionID: .eventID(eventID)) = item.id else {
MXLog.error("Unexpected event type on a detached timeline.")
return .none
}
newTimelineFocus = .eventID(eventID)
newTimelinePresentation = .roomScreenDetached
case .pinned:
newTimelineFocus = .pinned
newTimelinePresentation = .pinnedEventsScreen
case .thread(let rootEventID):
newTimelineFocus = .thread(eventID: rootEventID)
newTimelinePresentation = .roomScreenThread
case .media:
break // We don't need to create a new timeline as it is already filtered.
}
if let newTimelineFocus, let newTimelinePresentation {
let timelineItemFactory = RoomTimelineItemFactory(userID: roomProxy.ownUserID,
attributedStringBuilder: AttributedStringBuilder(mentionBuilder: MentionBuilder()),
stateEventStringBuilder: RoomStateEventStringBuilder(userID: roomProxy.ownUserID))
guard case let .success(timelineController) = await timelineControllerFactory.buildMessageFilteredTimelineController(focus: newTimelineFocus,
allowedMessageTypes: messageTypes,
presentation: newTimelinePresentation,
roomProxy: roomProxy,
timelineItemFactory: timelineItemFactory,
mediaProvider: userSession.mediaProvider) else {
MXLog.error("Failed presenting media timeline")
return .none
}
let timelineViewModel = TimelineViewModel(roomProxy: roomProxy,
timelineController: timelineController,
userSession: userSession,
mediaPlayerProvider: mediaPlayerProvider,
userIndicatorController: userIndicatorController,
appMediator: appMediator,
appSettings: appSettings,
analyticsService: analyticsService,
emojiProvider: emojiProvider,
linkMetadataProvider: linkMetadataProvider,
timelineControllerFactory: timelineControllerFactory)
return previewAction(for: item, timelineViewModel: .new(timelineViewModel))
} else {
return previewAction(for: item, timelineViewModel: .active)
}
}
/// A gallery is previewed scoped to its own attachments rather than the wider timeline's media.
private func previewAction(for item: EventBasedMessageTimelineItemProtocol,
timelineViewModel: TimelineControllerAction.TimelineViewModelKind) -> TimelineControllerAction {
guard let galleryItem = item as? GalleryRoomTimelineItem else {
return .displayMediaPreview(item: item, timelineViewModel: timelineViewModel)
}
return .displayGalleryPreview(galleryItem: galleryItem, timelineViewModel: timelineViewModel)
}
}
private struct ReplyInfo {
let type: TimelineEventContent
let isThread: Bool
}