PixelDroid-App-Android/app/src/main/java/org/pixeldroid/app/posts/feeds/uncachedFeeds/UncachedPostsFragment.kt

106 lines
3.7 KiB
Kotlin

package org.pixeldroid.app.posts.feeds.uncachedFeeds
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.lifecycle.ViewModelProvider
import androidx.lifecycle.lifecycleScope
import androidx.paging.ExperimentalPagingApi
import androidx.paging.PagingDataAdapter
import androidx.recyclerview.widget.DiffUtil
import androidx.recyclerview.widget.RecyclerView
import org.pixeldroid.app.R
import org.pixeldroid.app.posts.StatusViewHolder
import org.pixeldroid.app.posts.feeds.uncachedFeeds.hashtags.HashTagContentRepository
import org.pixeldroid.app.posts.feeds.uncachedFeeds.search.SearchContentRepository
import org.pixeldroid.app.utils.api.objects.Results
import org.pixeldroid.app.utils.api.objects.Status
import org.pixeldroid.app.utils.api.objects.Tag.Companion.HASHTAG_TAG
import org.pixeldroid.app.utils.displayDimensionsInPx
/**
* Fragment to show a list of [Status]es, as a result of a search or a hashtag.
*/
class UncachedPostsFragment : UncachedFeedFragment<Status>() {
private var hashtagOrQuery: String? = null
private var search: Boolean = false
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
adapter = PostsAdapter(requireContext().displayDimensionsInPx())
hashtagOrQuery = arguments?.getString(HASHTAG_TAG)
if(hashtagOrQuery == null){
search = true
hashtagOrQuery = arguments?.getString("searchFeed")!!
}
}
@ExperimentalPagingApi
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
val view = super.onCreateView(inflater, container, savedInstanceState)
// get the view model
@Suppress("UNCHECKED_CAST")
viewModel = if(search) {
ViewModelProvider(
requireActivity(), ViewModelFactory(
SearchContentRepository<Status>(
apiHolder.setToCurrentUser(),
Results.SearchType.statuses,
hashtagOrQuery!!
)
)
)
.get("searchPosts", FeedViewModel::class.java) as FeedViewModel<Status>
} else {
ViewModelProvider(requireActivity(), ViewModelFactory(
HashTagContentRepository(
apiHolder.setToCurrentUser(),
hashtagOrQuery!!
)
)
)
.get(HASHTAG_TAG, FeedViewModel::class.java) as FeedViewModel<Status>
}
launch()
initSearch()
return view
}
inner class PostsAdapter(private val displayDimensionsInPx: Pair<Int, Int>) : PagingDataAdapter<Status, RecyclerView.ViewHolder>(
object : DiffUtil.ItemCallback<Status>() {
override fun areItemsTheSame(oldItem: Status, newItem: Status): Boolean {
return oldItem.id == newItem.id
}
override fun areContentsTheSame(oldItem: Status, newItem: Status): Boolean =
oldItem.id == newItem.id
}
) {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
return StatusViewHolder.create(parent)
}
override fun getItemViewType(position: Int): Int {
return R.layout.post_fragment
}
override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
val uiModel = getItem(position) as Status
uiModel.let {
(holder as StatusViewHolder).bind(it, apiHolder, db, lifecycleScope, displayDimensionsInPx)
}
}
}
}