65 lines
2.2 KiB
Kotlin
65 lines
2.2 KiB
Kotlin
/* Copyright 2022 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.account.media
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import androidx.lifecycle.ViewModel
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import androidx.lifecycle.viewModelScope
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import androidx.paging.ExperimentalPagingApi
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import androidx.paging.Pager
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import androidx.paging.PagingConfig
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import androidx.paging.cachedIn
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import com.keylesspalace.tusky.network.MastodonApi
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import com.keylesspalace.tusky.viewdata.AttachmentViewData
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import javax.inject.Inject
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class AccountMediaViewModel @Inject constructor(
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api: MastodonApi
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) : ViewModel() {
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lateinit var accountId: String
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val attachmentData: MutableList<AttachmentViewData> = mutableListOf()
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var currentSource: AccountMediaPagingSource? = null
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@OptIn(ExperimentalPagingApi::class)
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val media = Pager(
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config = PagingConfig(
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pageSize = LOAD_AT_ONCE,
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prefetchDistance = LOAD_AT_ONCE * 2
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),
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pagingSourceFactory = {
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AccountMediaPagingSource(
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viewModel = this
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).also { source ->
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currentSource = source
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}
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},
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remoteMediator = AccountMediaRemoteMediator(api, this)
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).flow
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.cachedIn(viewModelScope)
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fun revealAttachment(viewData: AttachmentViewData) {
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val position = attachmentData.indexOfFirst { oldViewData -> oldViewData.id == viewData.id }
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attachmentData[position] = viewData.copy(isRevealed = true)
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currentSource?.invalidate()
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}
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companion object {
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private const val LOAD_AT_ONCE = 30
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}
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}
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