530 lines
20 KiB
Kotlin
530 lines
20 KiB
Kotlin
/* Copyright 2019 Tusky Contributors
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*
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* This file is a part of Tusky.
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with Tusky; if not,
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* see <http://www.gnu.org/licenses>. */
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package com.keylesspalace.tusky.components.compose
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import android.net.Uri
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import android.util.Log
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import androidx.core.net.toUri
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import androidx.lifecycle.ViewModel
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import androidx.lifecycle.viewModelScope
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import at.connyduck.calladapter.networkresult.fold
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import com.keylesspalace.tusky.components.compose.ComposeActivity.QueuedMedia
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import com.keylesspalace.tusky.components.compose.ComposeAutoCompleteAdapter.AutocompleteResult
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import com.keylesspalace.tusky.components.drafts.DraftHelper
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import com.keylesspalace.tusky.components.instanceinfo.InstanceInfoRepository
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import com.keylesspalace.tusky.components.search.SearchType
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import com.keylesspalace.tusky.db.AccountManager
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import com.keylesspalace.tusky.entity.Attachment
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import com.keylesspalace.tusky.entity.NewPoll
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import com.keylesspalace.tusky.entity.Status
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import com.keylesspalace.tusky.network.MastodonApi
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import com.keylesspalace.tusky.service.MediaToSend
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import com.keylesspalace.tusky.service.ServiceClient
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import com.keylesspalace.tusky.service.StatusToSend
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import com.keylesspalace.tusky.util.randomAlphanumericString
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.FlowPreview
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import kotlinx.coroutines.channels.BufferOverflow
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import kotlinx.coroutines.flow.MutableSharedFlow
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import kotlinx.coroutines.flow.MutableStateFlow
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import kotlinx.coroutines.flow.SharingStarted
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import kotlinx.coroutines.flow.asFlow
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import kotlinx.coroutines.flow.first
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import kotlinx.coroutines.flow.map
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import kotlinx.coroutines.flow.shareIn
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import kotlinx.coroutines.flow.update
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import kotlinx.coroutines.flow.updateAndGet
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import kotlinx.coroutines.launch
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import kotlinx.coroutines.withContext
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import javax.inject.Inject
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@OptIn(FlowPreview::class)
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class ComposeViewModel @Inject constructor(
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private val api: MastodonApi,
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private val accountManager: AccountManager,
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private val mediaUploader: MediaUploader,
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private val serviceClient: ServiceClient,
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private val draftHelper: DraftHelper,
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instanceInfoRepo: InstanceInfoRepository
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) : ViewModel() {
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private var replyingStatusAuthor: String? = null
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private var replyingStatusContent: String? = null
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internal var startingText: String? = null
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internal var postLanguage: String? = null
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private var draftId: Int = 0
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private var scheduledTootId: String? = null
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private var startingContentWarning: String = ""
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private var inReplyToId: String? = null
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private var originalStatusId: String? = null
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private var quoteId: String? = null
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private var quoteStatusAuthor: String? = null
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private var quoteStatusContent: String? = null
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private var startingVisibility: Status.Visibility = Status.Visibility.UNKNOWN
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private var contentWarningStateChanged: Boolean = false
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private var modifiedInitialState: Boolean = false
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private var hasScheduledTimeChanged: Boolean = false
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private val useCache = MutableStateFlow(true)
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val instanceInfo = useCache.map {
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when (it) {
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true -> instanceInfoRepo.getCachedInstanceInfo()
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false -> instanceInfoRepo.getInstanceInfo()
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}
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}.shareIn(viewModelScope, SharingStarted.Eagerly, 1)
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val emoji = useCache.map {
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when (it) {
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true -> instanceInfoRepo.getCachedEmojis()
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false -> instanceInfoRepo.getEmojis()
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}
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}.shareIn(viewModelScope, SharingStarted.Eagerly, 1)
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val markMediaAsSensitive: MutableStateFlow<Boolean> =
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MutableStateFlow(accountManager.activeAccount?.defaultMediaSensitivity ?: false)
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val statusVisibility: MutableStateFlow<Status.Visibility> = MutableStateFlow(Status.Visibility.UNKNOWN)
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val showContentWarning: MutableStateFlow<Boolean> = MutableStateFlow(false)
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val poll: MutableStateFlow<NewPoll?> = MutableStateFlow(null)
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val scheduledAt: MutableStateFlow<String?> = MutableStateFlow(null)
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val media: MutableStateFlow<List<QueuedMedia>> = MutableStateFlow(emptyList())
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val uploadError = MutableSharedFlow<Throwable>(replay = 0, extraBufferCapacity = 1, onBufferOverflow = BufferOverflow.DROP_OLDEST)
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val domain = accountManager.activeAccount?.domain!!
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lateinit var composeKind: ComposeActivity.ComposeKind
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// Used in ComposeActivity to pass state to result function when cropImage contract inflight
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var cropImageItemOld: QueuedMedia? = null
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private var setupComplete = false
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suspend fun pickMedia(mediaUri: Uri, description: String? = null, focus: Attachment.Focus? = null): Result<QueuedMedia> = withContext(Dispatchers.IO) {
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try {
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val (type, uri, size) = mediaUploader.prepareMedia(mediaUri, instanceInfo.first())
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val mediaItems = media.value
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if (type != QueuedMedia.Type.IMAGE &&
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mediaItems.isNotEmpty() &&
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mediaItems[0].type == QueuedMedia.Type.IMAGE
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) {
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Result.failure(VideoOrImageException())
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} else {
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val queuedMedia = addMediaToQueue(type, uri, size, description, focus)
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Result.success(queuedMedia)
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}
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} catch (e: Exception) {
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Result.failure(e)
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}
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}
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suspend fun addMediaToQueue(
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type: QueuedMedia.Type,
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uri: Uri,
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mediaSize: Long,
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description: String? = null,
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focus: Attachment.Focus? = null,
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replaceItem: QueuedMedia? = null
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): QueuedMedia {
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var stashMediaItem: QueuedMedia? = null
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media.updateAndGet { mediaValue ->
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val mediaItem = QueuedMedia(
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localId = mediaUploader.getNewLocalMediaId(),
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uri = uri,
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type = type,
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mediaSize = mediaSize,
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description = description,
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focus = focus,
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state = QueuedMedia.State.UPLOADING
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)
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stashMediaItem = mediaItem
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if (replaceItem != null) {
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mediaUploader.cancelUploadScope(replaceItem.localId)
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mediaValue.map {
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if (it.localId == replaceItem.localId) mediaItem else it
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}
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} else { // Append
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mediaValue + mediaItem
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}
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}
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val mediaItem = stashMediaItem!! // stashMediaItem is always non-null and uncaptured at this point, but Kotlin doesn't know that
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viewModelScope.launch {
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mediaUploader
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.uploadMedia(mediaItem, instanceInfo.first())
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.collect { event ->
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val item = media.value.find { it.localId == mediaItem.localId }
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?: return@collect
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val newMediaItem = when (event) {
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is UploadEvent.ProgressEvent ->
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item.copy(uploadPercent = event.percentage)
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is UploadEvent.FinishedEvent ->
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item.copy(
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id = event.mediaId,
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uploadPercent = -1,
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state = if (event.processed) { QueuedMedia.State.PROCESSED } else { QueuedMedia.State.UNPROCESSED }
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)
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is UploadEvent.ErrorEvent -> {
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media.update { mediaValue -> mediaValue.filter { it.localId != mediaItem.localId } }
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uploadError.emit(event.error)
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return@collect
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}
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}
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media.update { mediaValue ->
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mediaValue.map { mediaItem ->
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if (mediaItem.localId == newMediaItem.localId) {
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newMediaItem
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} else {
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mediaItem
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}
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}
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}
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}
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}
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return mediaItem
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}
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private fun addUploadedMedia(id: String, type: QueuedMedia.Type, uri: Uri, description: String?, focus: Attachment.Focus?) {
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media.update { mediaValue ->
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val mediaItem = QueuedMedia(
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localId = mediaUploader.getNewLocalMediaId(),
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uri = uri,
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type = type,
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mediaSize = 0,
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uploadPercent = -1,
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id = id,
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description = description,
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focus = focus,
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state = QueuedMedia.State.PUBLISHED
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)
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mediaValue + mediaItem
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}
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}
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fun removeMediaFromQueue(item: QueuedMedia) {
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mediaUploader.cancelUploadScope(item.localId)
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media.update { mediaValue -> mediaValue.filter { it.localId != item.localId } }
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}
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fun toggleMarkSensitive() {
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this.markMediaAsSensitive.value = this.markMediaAsSensitive.value != true
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}
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fun didChange(content: String?, contentWarning: String?): Boolean {
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val textChanged = content.orEmpty() != startingText.orEmpty()
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val contentWarningChanged = contentWarning.orEmpty() != startingContentWarning
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val mediaChanged = media.value.isNotEmpty()
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val pollChanged = poll.value != null
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val didScheduledTimeChange = hasScheduledTimeChanged
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return modifiedInitialState || textChanged || contentWarningChanged || mediaChanged || pollChanged || didScheduledTimeChange
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}
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fun contentWarningChanged(value: Boolean) {
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showContentWarning.value = value
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contentWarningStateChanged = true
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}
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fun deleteDraft() {
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viewModelScope.launch {
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if (draftId != 0) {
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draftHelper.deleteDraftAndAttachments(draftId)
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}
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}
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}
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fun stopUploads() {
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mediaUploader.cancelUploadScope(*media.value.map { it.localId }.toIntArray())
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}
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fun shouldShowSaveDraftDialog(): Boolean {
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// if any of the media files need to be downloaded first it could take a while, so show a loading dialog
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return media.value.any { mediaValue ->
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mediaValue.uri.scheme == "https"
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}
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}
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suspend fun saveDraft(content: String, contentWarning: String) {
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val mediaUris: MutableList<String> = mutableListOf()
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val mediaDescriptions: MutableList<String?> = mutableListOf()
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val mediaFocus: MutableList<Attachment.Focus?> = mutableListOf()
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media.value.forEach { item ->
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mediaUris.add(item.uri.toString())
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mediaDescriptions.add(item.description)
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mediaFocus.add(item.focus)
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}
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draftHelper.saveDraft(
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draftId = draftId,
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accountId = accountManager.activeAccount?.id!!,
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inReplyToId = inReplyToId,
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content = content,
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contentWarning = contentWarning,
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sensitive = markMediaAsSensitive.value,
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visibility = statusVisibility.value,
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mediaUris = mediaUris,
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mediaDescriptions = mediaDescriptions,
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mediaFocus = mediaFocus,
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poll = poll.value,
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failedToSend = false,
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scheduledAt = scheduledAt.value,
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language = postLanguage,
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statusId = originalStatusId,
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)
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}
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/**
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* Send status to the server.
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* Uses current state plus provided arguments.
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*/
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suspend fun sendStatus(
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content: String,
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spoilerText: String
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) {
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if (!scheduledTootId.isNullOrEmpty()) {
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api.deleteScheduledStatus(scheduledTootId!!)
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}
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val attachedMedia = media.value.map { item ->
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MediaToSend(
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localId = item.localId,
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id = item.id,
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uri = item.uri.toString(),
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description = item.description,
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focus = item.focus,
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processed = item.state == QueuedMedia.State.PROCESSED || item.state == QueuedMedia.State.PUBLISHED
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)
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}
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val tootToSend = StatusToSend(
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text = content,
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warningText = spoilerText,
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visibility = statusVisibility.value.serverString(),
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sensitive = attachedMedia.isNotEmpty() && (markMediaAsSensitive.value || showContentWarning.value),
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media = attachedMedia,
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scheduledAt = scheduledAt.value,
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inReplyToId = inReplyToId,
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poll = poll.value,
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replyingStatusContent = null,
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replyingStatusAuthorUsername = null,
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quoteId = quoteId,
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accountId = accountManager.activeAccount!!.id,
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draftId = draftId,
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idempotencyKey = randomAlphanumericString(16),
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retries = 0,
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language = postLanguage,
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statusId = originalStatusId
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)
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serviceClient.sendToot(tootToSend)
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}
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// Updates a QueuedMedia item arbitrarily, then sends description and focus to server
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private suspend fun updateMediaItem(localId: Int, mutator: (QueuedMedia) -> QueuedMedia): Boolean {
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val newMediaList = media.updateAndGet { mediaValue ->
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mediaValue.map { mediaItem ->
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if (mediaItem.localId == localId) {
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mutator(mediaItem)
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} else {
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mediaItem
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}
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}
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}
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val updatedItem = newMediaList.find { it.localId == localId }
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if (updatedItem?.id != null) {
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val focus = updatedItem.focus
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val focusString = if (focus != null) "${focus.x},${focus.y}" else null
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return api.updateMedia(updatedItem.id, updatedItem.description, focusString)
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.fold({
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true
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}, { throwable ->
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Log.w(TAG, "failed to update media", throwable)
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false
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})
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}
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return true
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}
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suspend fun updateDescription(localId: Int, description: String): Boolean {
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return updateMediaItem(localId) { mediaItem ->
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mediaItem.copy(description = description)
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}
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}
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suspend fun updateFocus(localId: Int, focus: Attachment.Focus): Boolean {
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return updateMediaItem(localId) { mediaItem ->
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mediaItem.copy(focus = focus)
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}
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}
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fun searchAutocompleteSuggestions(token: String): List<AutocompleteResult> {
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when (token[0]) {
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'@' -> {
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return api.searchAccountsSync(query = token.substring(1), limit = 10)
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.fold({ accounts ->
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accounts.map { AutocompleteResult.AccountResult(it) }
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}, { e ->
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Log.e(TAG, "Autocomplete search for $token failed.", e)
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emptyList()
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})
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}
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'#' -> {
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return api.searchSync(query = token, type = SearchType.Hashtag.apiParameter, limit = 10)
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.fold({ searchResult ->
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searchResult.hashtags.map { AutocompleteResult.HashtagResult(it.name) }
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}, { e ->
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Log.e(TAG, "Autocomplete search for $token failed.", e)
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emptyList()
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})
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}
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':' -> {
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val emojiList = emoji.replayCache.firstOrNull() ?: return emptyList()
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val incomplete = token.substring(1)
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return emojiList.filter { emoji ->
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emoji.shortcode.contains(incomplete, ignoreCase = true)
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}.sortedBy { emoji ->
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emoji.shortcode.indexOf(incomplete, ignoreCase = true)
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}.map { emoji ->
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AutocompleteResult.EmojiResult(emoji)
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}
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}
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else -> {
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Log.w(TAG, "Unexpected autocompletion token: $token")
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return emptyList()
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}
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}
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}
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fun setup(composeOptions: ComposeActivity.ComposeOptions?, useCache: Boolean) {
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if (setupComplete) {
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return
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}
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composeKind = composeOptions?.kind ?: ComposeActivity.ComposeKind.NEW
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val preferredVisibility = accountManager.activeAccount!!.defaultPostPrivacy
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val replyVisibility = composeOptions?.replyVisibility ?: Status.Visibility.UNKNOWN
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startingVisibility = Status.Visibility.byNum(
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preferredVisibility.num.coerceAtLeast(replyVisibility.num)
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)
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inReplyToId = composeOptions?.inReplyToId
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modifiedInitialState = composeOptions?.modifiedInitialState == true
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quoteId = composeOptions?.quoteId
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quoteStatusAuthor = composeOptions?.quoteStatusAuthor
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quoteStatusContent = composeOptions?.quoteStatusContent
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val contentWarning = composeOptions?.contentWarning
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if (contentWarning != null) {
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startingContentWarning = contentWarning
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}
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if (!contentWarningStateChanged) {
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showContentWarning.value = !contentWarning.isNullOrBlank()
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}
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// recreate media list
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val draftAttachments = composeOptions?.draftAttachments
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if (draftAttachments != null) {
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// when coming from DraftActivity
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viewModelScope.launch {
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draftAttachments.forEach { attachment ->
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pickMedia(attachment.uri, attachment.description, attachment.focus)
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}
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}
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} else composeOptions?.mediaAttachments?.forEach { a ->
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// when coming from redraft or ScheduledTootActivity
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val mediaType = when (a.type) {
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Attachment.Type.VIDEO, Attachment.Type.GIFV -> QueuedMedia.Type.VIDEO
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Attachment.Type.UNKNOWN, Attachment.Type.IMAGE -> QueuedMedia.Type.IMAGE
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Attachment.Type.AUDIO -> QueuedMedia.Type.AUDIO
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}
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addUploadedMedia(a.id, mediaType, a.url.toUri(), a.description, a.meta?.focus)
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}
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draftId = composeOptions?.draftId ?: 0
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scheduledTootId = composeOptions?.scheduledTootId
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originalStatusId = composeOptions?.statusId
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startingText = composeOptions?.content
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postLanguage = composeOptions?.language
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val tootVisibility = composeOptions?.visibility ?: Status.Visibility.UNKNOWN
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if (tootVisibility.num != Status.Visibility.UNKNOWN.num) {
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startingVisibility = tootVisibility
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}
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statusVisibility.value = startingVisibility
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val builder = StringBuilder()
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val mentionedUsernames = composeOptions?.mentionedUsernames
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if (mentionedUsernames != null) {
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for (name in mentionedUsernames) {
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builder.append('@')
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builder.append(name)
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builder.append(' ')
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}
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}
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if (startingText != null) {
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builder.append(startingText)
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}
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startingText = builder.toString()
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scheduledAt.value = composeOptions?.scheduledAt
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composeOptions?.sensitive?.let { markMediaAsSensitive.value = it }
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val poll = composeOptions?.poll
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if (poll != null && composeOptions.mediaAttachments.isNullOrEmpty()) {
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this.poll.value = poll
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}
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replyingStatusContent = composeOptions?.replyingStatusContent
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replyingStatusAuthor = composeOptions?.replyingStatusAuthor
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this.useCache.update { useCache }
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setupComplete = true
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}
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fun updatePoll(newPoll: NewPoll) {
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poll.value = newPoll
|
|
}
|
|
|
|
fun updateScheduledAt(newScheduledAt: String?) {
|
|
if (newScheduledAt != scheduledAt.value) {
|
|
hasScheduledTimeChanged = true
|
|
}
|
|
|
|
scheduledAt.value = newScheduledAt
|
|
}
|
|
|
|
val editing: Boolean
|
|
get() = !originalStatusId.isNullOrEmpty()
|
|
|
|
private companion object {
|
|
const val TAG = "ComposeViewModel"
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Thrown when trying to add an image when video is already present or the other way around
|
|
*/
|
|
class VideoOrImageException : Exception()
|