104 lines
3.7 KiB
Kotlin
104 lines
3.7 KiB
Kotlin
package org.moire.ultrasonic.fragment
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import android.app.Application
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import android.os.Bundle
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import androidx.lifecycle.LiveData
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import androidx.lifecycle.MutableLiveData
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import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
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import org.moire.ultrasonic.api.subsonic.models.AlbumListType
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import org.moire.ultrasonic.domain.MusicDirectory
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import org.moire.ultrasonic.service.MusicService
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import org.moire.ultrasonic.util.Constants
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import org.moire.ultrasonic.util.Util
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class AlbumListModel(application: Application) : GenericListModel(application) {
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val albumList: MutableLiveData<List<MusicDirectory.Entry>> = MutableLiveData(listOf())
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var lastType: String? = null
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private var loadedUntil: Int = 0
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fun getAlbumList(
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refresh: Boolean,
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swipe: SwipeRefreshLayout,
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args: Bundle
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): LiveData<List<MusicDirectory.Entry>> {
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// Don't reload the data if navigating back to the view that was active before.
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// This way, we keep the scroll position
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val albumListType = args.getString(Constants.INTENT_EXTRA_NAME_ALBUM_LIST_TYPE)!!
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if (refresh || albumList.value!!.isEmpty() || albumListType != lastType) {
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lastType = albumListType
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backgroundLoadFromServer(refresh, swipe, args)
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}
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return albumList
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}
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override fun load(
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isOffline: Boolean,
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useId3Tags: Boolean,
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musicService: MusicService,
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refresh: Boolean,
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args: Bundle
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) {
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super.load(isOffline, useId3Tags, musicService, refresh, args)
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val albumListType = args.getString(Constants.INTENT_EXTRA_NAME_ALBUM_LIST_TYPE)!!
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val size = args.getInt(Constants.INTENT_EXTRA_NAME_ALBUM_LIST_SIZE, 0)
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var offset = args.getInt(Constants.INTENT_EXTRA_NAME_ALBUM_LIST_OFFSET, 0)
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val append = args.getBoolean(Constants.INTENT_EXTRA_NAME_APPEND, false)
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val musicDirectory: MusicDirectory
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val musicFolderId = if (showSelectFolderHeader(args)) {
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activeServerProvider.getActiveServer().musicFolderId
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} else {
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null
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}
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// Handle the logic for endless scrolling:
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// If appending the existing list, set the offset from where to load
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if (append) offset += (size + loadedUntil)
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if (useId3Tags) {
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musicDirectory = musicService.getAlbumList2(
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albumListType, size,
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offset, musicFolderId
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)
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} else {
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musicDirectory = musicService.getAlbumList(
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albumListType, size,
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offset, musicFolderId
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)
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}
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currentListIsSortable = isCollectionSortable(albumListType)
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if (append && albumList.value != null) {
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val list = ArrayList<MusicDirectory.Entry>()
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list.addAll(albumList.value!!)
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list.addAll(musicDirectory.getAllChild())
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albumList.postValue(list)
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} else {
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albumList.postValue(musicDirectory.getAllChild())
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}
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loadedUntil = offset
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}
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override fun showSelectFolderHeader(args: Bundle?): Boolean {
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if (args == null) return false
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val albumListType = args.getString(Constants.INTENT_EXTRA_NAME_ALBUM_LIST_TYPE)!!
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val isAlphabetical = (albumListType == AlbumListType.SORTED_BY_NAME.toString()) ||
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(albumListType == AlbumListType.SORTED_BY_ARTIST.toString())
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return !isOffline() && !Util.getShouldUseId3Tags() && isAlphabetical
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}
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private fun isCollectionSortable(albumListType: String): Boolean {
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return albumListType != "newest" && albumListType != "random" &&
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albumListType != "highest" && albumListType != "recent" &&
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albumListType != "frequent"
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}
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}
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