592 lines
22 KiB
Kotlin
592 lines
22 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.ComposeKind
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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.InstanceInfo
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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.Emoji
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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 javax.inject.Inject
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import kotlinx.coroutines.Dispatchers
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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.SharedFlow
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import kotlinx.coroutines.flow.SharingStarted
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import kotlinx.coroutines.flow.StateFlow
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import kotlinx.coroutines.flow.asFlow
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import kotlinx.coroutines.flow.asStateFlow
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import kotlinx.coroutines.flow.first
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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.launch
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import kotlinx.coroutines.runBlocking
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import kotlinx.coroutines.withContext
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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 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 var currentContent: String? = ""
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private var currentContentWarning: String? = ""
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val instanceInfo: SharedFlow<InstanceInfo> = instanceInfoRepo::getUpdatedInstanceInfoOrFallback.asFlow()
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.shareIn(viewModelScope, SharingStarted.Eagerly, replay = 1)
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val emoji: SharedFlow<List<Emoji>> = instanceInfoRepo::getEmojis.asFlow()
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.shareIn(viewModelScope, SharingStarted.Eagerly, replay = 1)
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private val _markMediaAsSensitive =
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MutableStateFlow(accountManager.activeAccount?.defaultMediaSensitivity ?: false)
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val markMediaAsSensitive: StateFlow<Boolean> = _markMediaAsSensitive.asStateFlow()
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private val _statusVisibility = MutableStateFlow(Status.Visibility.UNKNOWN)
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val statusVisibility: StateFlow<Status.Visibility> = _statusVisibility.asStateFlow()
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private val _showContentWarning = MutableStateFlow(false)
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val showContentWarning: StateFlow<Boolean> = _showContentWarning.asStateFlow()
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private val _poll = MutableStateFlow(null as NewPoll?)
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val poll: StateFlow<NewPoll?> = _poll.asStateFlow()
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private val _scheduledAt = MutableStateFlow(null as String?)
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val scheduledAt: StateFlow<String?> = _scheduledAt.asStateFlow()
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private val _media = MutableStateFlow(emptyList<QueuedMedia>())
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val media: StateFlow<List<QueuedMedia>> = _media.asStateFlow()
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val uploadError =
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MutableSharedFlow<Throwable>(
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replay = 0,
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extraBufferCapacity = 1,
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onBufferOverflow = BufferOverflow.DROP_OLDEST
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)
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private val _closeConfirmation = MutableStateFlow(ConfirmationKind.NONE)
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val closeConfirmation: StateFlow<ConfirmationKind> = _closeConfirmation.asStateFlow()
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private lateinit var composeKind: 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(
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mediaUri: Uri,
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description: String? = null,
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focus: Attachment.Focus? = null
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): Result<QueuedMedia> = withContext(
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Dispatchers.IO
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) {
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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.update { mediaList ->
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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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mediaList.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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mediaList + 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) {
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QueuedMedia.State.PROCESSED
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} else {
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QueuedMedia.State.UNPROCESSED
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}
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)
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is UploadEvent.ErrorEvent -> {
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_media.update { mediaList -> mediaList.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 { mediaList ->
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mediaList.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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updateCloseConfirmation()
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return mediaItem
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}
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fun changeStatusVisibility(visibility: Status.Visibility) {
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_statusVisibility.value = visibility
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}
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private fun addUploadedMedia(
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id: String,
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type: QueuedMedia.Type,
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uri: Uri,
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description: String?,
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focus: Attachment.Focus?
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) {
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_media.update { mediaList ->
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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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mediaList + 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 { mediaList -> mediaList.filter { it.localId != item.localId } }
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updateCloseConfirmation()
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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 updateContent(newContent: String?) {
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currentContent = newContent
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updateCloseConfirmation()
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}
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fun updateContentWarning(newContentWarning: String?) {
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currentContentWarning = newContentWarning
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updateCloseConfirmation()
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}
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private fun updateCloseConfirmation() {
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val contentWarning = if (_showContentWarning.value) {
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currentContentWarning
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} else {
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""
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}
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this._closeConfirmation.value = if (didChange(currentContent, contentWarning)) {
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when (composeKind) {
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ComposeKind.NEW -> if (isEmpty(currentContent, contentWarning)) {
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ConfirmationKind.NONE
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} else {
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ConfirmationKind.SAVE_OR_DISCARD
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}
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ComposeKind.EDIT_DRAFT -> if (isEmpty(currentContent, contentWarning)) {
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ConfirmationKind.CONTINUE_EDITING_OR_DISCARD_DRAFT
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} else {
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ConfirmationKind.UPDATE_OR_DISCARD
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}
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ComposeKind.EDIT_POSTED -> ConfirmationKind.CONTINUE_EDITING_OR_DISCARD_CHANGES
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ComposeKind.EDIT_SCHEDULED -> ConfirmationKind.CONTINUE_EDITING_OR_DISCARD_CHANGES
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}
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} else {
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ConfirmationKind.NONE
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}
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}
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private 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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private fun isEmpty(content: String?, contentWarning: String?): Boolean {
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return !modifiedInitialState && (content.isNullOrBlank() && contentWarning.isNullOrBlank() && _media.value.isEmpty() && _poll.value == null)
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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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updateCloseConfirmation()
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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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for (item in _media.value) {
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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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failedToSendAlert = 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(content: String, spoilerText: String, accountId: Long) {
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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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accountId = accountId,
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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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private fun updateMediaItem(localId: Int, mutator: (QueuedMedia) -> QueuedMedia) {
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_media.update { mediaList ->
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mediaList.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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}
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fun updateDescription(localId: Int, description: String) {
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updateMediaItem(localId) { mediaItem ->
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mediaItem.copy(description = description)
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}
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}
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fun updateFocus(localId: Int, focus: Attachment.Focus) {
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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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return when (token[0]) {
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'@' -> runBlocking {
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api.searchAccounts(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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'#' -> runBlocking {
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api.search(
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query = token,
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type = SearchType.Hashtag.apiParameter,
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limit = 10
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)
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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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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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emptyList()
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}
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}
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}
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fun setup(composeOptions: ComposeActivity.ComposeOptions?) {
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if (setupComplete) {
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return
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}
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composeKind = composeOptions?.kind ?: 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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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 {
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composeOptions?.mediaAttachments?.forEach { a ->
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// when coming from redraft or ScheduledTootActivity
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val mediaType = when (a.type) {
|
|
Attachment.Type.VIDEO, Attachment.Type.GIFV -> QueuedMedia.Type.VIDEO
|
|
Attachment.Type.UNKNOWN, Attachment.Type.IMAGE -> QueuedMedia.Type.IMAGE
|
|
Attachment.Type.AUDIO -> QueuedMedia.Type.AUDIO
|
|
}
|
|
addUploadedMedia(a.id, mediaType, a.url.toUri(), a.description, a.meta?.focus)
|
|
}
|
|
}
|
|
|
|
draftId = composeOptions?.draftId ?: 0
|
|
scheduledTootId = composeOptions?.scheduledTootId
|
|
originalStatusId = composeOptions?.statusId
|
|
startingText = composeOptions?.content
|
|
postLanguage = composeOptions?.language
|
|
|
|
val tootVisibility = composeOptions?.visibility ?: Status.Visibility.UNKNOWN
|
|
if (tootVisibility.num != Status.Visibility.UNKNOWN.num) {
|
|
startingVisibility = tootVisibility
|
|
}
|
|
_statusVisibility.value = startingVisibility
|
|
val mentionedUsernames = composeOptions?.mentionedUsernames
|
|
if (mentionedUsernames != null) {
|
|
val builder = StringBuilder()
|
|
for (name in mentionedUsernames) {
|
|
builder.append('@')
|
|
builder.append(name)
|
|
builder.append(' ')
|
|
}
|
|
startingText = builder.toString()
|
|
}
|
|
|
|
_scheduledAt.value = composeOptions?.scheduledAt
|
|
|
|
composeOptions?.sensitive?.let { _markMediaAsSensitive.value = it }
|
|
|
|
val poll = composeOptions?.poll
|
|
if (poll != null && composeOptions.mediaAttachments.isNullOrEmpty()) {
|
|
this._poll.value = poll
|
|
}
|
|
replyingStatusContent = composeOptions?.replyingStatusContent
|
|
replyingStatusAuthor = composeOptions?.replyingStatusAuthor
|
|
|
|
updateCloseConfirmation()
|
|
|
|
setupComplete = true
|
|
}
|
|
|
|
fun updatePoll(newPoll: NewPoll?) {
|
|
_poll.value = newPoll
|
|
updateCloseConfirmation()
|
|
}
|
|
|
|
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"
|
|
}
|
|
|
|
enum class ConfirmationKind {
|
|
NONE, // just close
|
|
SAVE_OR_DISCARD,
|
|
UPDATE_OR_DISCARD,
|
|
CONTINUE_EDITING_OR_DISCARD_CHANGES, // editing post
|
|
CONTINUE_EDITING_OR_DISCARD_DRAFT // edit draft
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Thrown when trying to add an image when video is already present or the other way around
|
|
*/
|
|
class VideoOrImageException : Exception()
|