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DraftViewModel.kt
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DraftViewModel.kt
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package org.thoughtcrime.securesms.conversation.drafts
import androidx.lifecycle.ViewModel
import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers
import io.reactivex.rxjava3.core.Flowable
import io.reactivex.rxjava3.core.Maybe
import io.reactivex.rxjava3.core.Single
import io.reactivex.rxjava3.schedulers.Schedulers
import org.thoughtcrime.securesms.components.location.SignalPlace
import org.thoughtcrime.securesms.conversation.ConversationMessage
import org.thoughtcrime.securesms.database.DraftTable.Draft
import org.thoughtcrime.securesms.database.MentionUtil
import org.thoughtcrime.securesms.database.model.Mention
import org.thoughtcrime.securesms.database.model.MessageId
import org.thoughtcrime.securesms.database.model.databaseprotos.BodyRangeList
import org.thoughtcrime.securesms.mms.QuoteId
import org.thoughtcrime.securesms.recipients.Recipient
import org.thoughtcrime.securesms.recipients.RecipientId
import org.thoughtcrime.securesms.util.Base64
import org.thoughtcrime.securesms.util.rx.RxStore
/**
* ViewModel responsible for holding Voice Note draft state. The intention is to allow
* other pieces of draft state to be held here as well in the future, and to serve as a
* management pattern going forward for drafts.
*/
class DraftViewModel @JvmOverloads constructor(
threadId: Long = -1,
private val repository: DraftRepository = DraftRepository()
) : ViewModel() {
private val store = RxStore(DraftState(threadId = threadId))
val state: Flowable<DraftState> = store.stateFlowable.observeOn(AndroidSchedulers.mainThread())
val voiceNoteDraft: Draft?
get() = store.state.voiceNoteDraft
override fun onCleared() {
store.dispose()
}
@Deprecated("Not needed for CFv2")
fun setThreadId(threadId: Long) {
store.update { it.copy(threadId = threadId) }
}
@Deprecated("Not needed for CFv2")
fun setDistributionType(distributionType: Int) {
store.update { it.copy(distributionType = distributionType) }
}
fun saveEphemeralVoiceNoteDraft(draft: Draft) {
store.update { draftState ->
saveDrafts(draftState.copy(voiceNoteDraft = draft))
}
}
fun cancelEphemeralVoiceNoteDraft(draft: Draft) {
repository.deleteVoiceNoteDraftData(draft)
}
fun deleteVoiceNoteDraft() {
store.update {
repository.deleteVoiceNoteDraftData(it.voiceNoteDraft)
saveDrafts(it.copy(voiceNoteDraft = null))
}
}
@Deprecated("Not needed for CFv2")
fun onRecipientChanged(recipient: Recipient) {
store.update { it.copy(recipientId = recipient.id) }
}
fun setMessageEditDraft(messageId: MessageId, text: String, mentions: List<Mention>, styleBodyRanges: BodyRangeList?) {
store.update {
val mentionRanges: BodyRangeList? = MentionUtil.mentionsToBodyRangeList(mentions)
val bodyRanges: BodyRangeList? = if (styleBodyRanges == null) {
mentionRanges
} else if (mentionRanges == null) {
styleBodyRanges
} else {
styleBodyRanges.toBuilder().addAllRanges(mentionRanges.rangesList).build()
}
saveDrafts(it.copy(textDraft = text.toTextDraft(), bodyRangesDraft = bodyRanges?.toDraft(), messageEditDraft = Draft(Draft.MESSAGE_EDIT, messageId.serialize())))
}
}
fun deleteMessageEditDraft() {
store.update {
saveDrafts(it.copy(textDraft = null, bodyRangesDraft = null, messageEditDraft = null))
}
}
fun setTextDraft(text: String, mentions: List<Mention>, styleBodyRanges: BodyRangeList?) {
store.update {
val mentionRanges: BodyRangeList? = MentionUtil.mentionsToBodyRangeList(mentions)
val bodyRanges: BodyRangeList? = if (styleBodyRanges == null) {
mentionRanges
} else if (mentionRanges == null) {
styleBodyRanges
} else {
styleBodyRanges.toBuilder().addAllRanges(mentionRanges.rangesList).build()
}
saveDrafts(it.copy(textDraft = text.toTextDraft(), bodyRangesDraft = bodyRanges?.toDraft()))
}
}
fun setLocationDraft(place: SignalPlace) {
store.update {
saveDrafts(it.copy(locationDraft = Draft(Draft.LOCATION, place.serialize() ?: "")))
}
}
fun clearLocationDraft() {
store.update {
saveDrafts(it.copy(locationDraft = null))
}
}
fun setQuoteDraft(id: Long, author: RecipientId) {
store.update {
saveDrafts(it.copy(quoteDraft = Draft(Draft.QUOTE, QuoteId(id, author).serialize())))
}
}
fun clearQuoteDraft() {
store.update {
saveDrafts(it.copy(quoteDraft = null))
}
}
fun onSendComplete(threadId: Long = store.state.threadId) {
repository.deleteVoiceNoteDraftData(store.state.voiceNoteDraft)
store.update { saveDrafts(it.copyAndClearDrafts(threadId)) }
}
private fun saveDrafts(state: DraftState): DraftState {
repository.saveDrafts(state.recipientId?.let { Recipient.resolved(it) }, state.threadId, state.distributionType, state.toDrafts())
return state
}
@Deprecated("Not needed for CFv2")
fun loadDrafts(threadId: Long): Single<DraftRepository.DatabaseDraft> {
return repository
.loadDrafts(threadId)
.doOnSuccess { drafts ->
store.update { saveDrafts(it.copyAndSetDrafts(threadId, drafts.drafts)) }
}
.observeOn(AndroidSchedulers.mainThread())
}
@Deprecated("Not needed for CFv2")
fun loadDraftQuote(serialized: String): Maybe<ConversationMessage> {
return repository.loadDraftQuote(serialized)
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
}
@Deprecated("Not needed for CFv2")
fun loadDraftEditMessage(serialized: String): Maybe<ConversationMessage> {
return repository.loadDraftMessageEdit(serialized)
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
}
fun loadShareOrDraftData(): Maybe<DraftRepository.ShareOrDraftData> {
return repository.getShareOrDraftData()
.doOnSuccess { (_, drafts) ->
if (drafts != null) {
store.update { saveDrafts(it.copyAndSetDrafts(drafts = drafts)) }
}
}
.flatMap { (data, _) ->
if (data == null) {
Maybe.empty()
} else {
Maybe.just(data)
}
}
.observeOn(AndroidSchedulers.mainThread())
}
}
private fun String.toTextDraft(): Draft? {
return if (isNotEmpty()) Draft(Draft.TEXT, this) else null
}
private fun BodyRangeList.toDraft(): Draft {
return Draft(Draft.BODY_RANGES, Base64.encodeBytes(toByteArray()))
}