Fixed download and cache indicators on search screen. Fixed an issue with placeholder texts when some search terms did not return results.

app/src/main/java/com/github/apognu/otter/activities/DownloadsActivity.kt

@@ -4,6 +4,7 @@ import android.os.Bundle
 import kotlinx.coroutines.flow.collect
 import androidx.appcompat.app.AppCompatActivity
 import androidx.recyclerview.widget.LinearLayoutManager
+import com.github.apognu.otter.Otter
 import com.github.apognu.otter.R
 import com.github.apognu.otter.adapters.DownloadsAdapter
 import com.github.apognu.otter.utils.*
@@ -45,21 +46,21 @@ class DownloadsActivity : AppCompatActivity() {
 
   private fun refresh() {
     GlobalScope.launch(Main) {
-      RequestBus.send(Request.GetDownloads).wait<Response.Downloads>()?.let { response ->
-        adapter.downloads.clear()
+      val cursor = Otter.get().exoDownloadManager.downloadIndex.getDownloads()
 
-        while (response.cursor.moveToNext()) {
-          val download = response.cursor.download
+      adapter.downloads.clear()
 
-          download.getMetadata()?.let { info ->
-            adapter.downloads.add(info.apply {
-              this.download = download
-            })
-          }
+      while (cursor.moveToNext()) {
+        val download = cursor.download
+
+        download.getMetadata()?.let { info ->
+          adapter.downloads.add(info.apply {
+            this.download = download
+          })
         }
-
-        adapter.notifyDataSetChanged()
       }
+
+      adapter.notifyDataSetChanged()
     }
   }
 

app/src/main/java/com/github/apognu/otter/activities/SearchActivity.kt

@@ -25,6 +25,8 @@ class SearchActivity : AppCompatActivity() {
 
   lateinit var favoritesRepository: FavoritesRepository
 
+  var done = 0
+
   override fun onCreate(savedInstanceState: Bundle?) {
     super.onCreate(savedInstanceState)
 
@@ -46,6 +48,8 @@ class SearchActivity : AppCompatActivity() {
         search.clearFocus()
 
         rawQuery?.let {
+          done = 0
+
           val query = URLEncoder.encode(it, "UTF-8")
 
           tracksRepository = TracksSearchRepository(this@SearchActivity, query.toLowerCase(Locale.ROOT))
@@ -54,6 +58,7 @@ class SearchActivity : AppCompatActivity() {
           favoritesRepository = FavoritesRepository(this@SearchActivity)
 
           search_spinner.visibility = View.VISIBLE
+          search_empty.visibility = View.GONE
           search_no_results.visibility = View.GONE
 
           adapter.artists.clear()
@@ -62,33 +67,24 @@ class SearchActivity : AppCompatActivity() {
           adapter.notifyDataSetChanged()
 
           artistsRepository.fetch(Repository.Origin.Network.origin).untilNetwork { artists, _, _ ->
-            when (artists.isEmpty()) {
-              true -> search_no_results.visibility = View.VISIBLE
-              false -> adapter.artists.addAll(artists)
-            }
+            done++
 
-            adapter.notifyDataSetChanged()
+            adapter.artists.addAll(artists)
+            refresh()
           }
 
           albumsRepository.fetch(Repository.Origin.Network.origin).untilNetwork { albums, _, _ ->
-            when (albums.isEmpty()) {
-              true -> search_no_results.visibility = View.VISIBLE
-              false -> adapter.albums.addAll(albums)
-            }
+            done++
 
-            adapter.notifyDataSetChanged()
+            adapter.albums.addAll(albums)
+            refresh()
           }
 
           tracksRepository.fetch(Repository.Origin.Network.origin).untilNetwork { tracks, _, _ ->
-            search_spinner.visibility = View.GONE
-            search_empty.visibility = View.GONE
+            done++
 
-            when (tracks.isEmpty()) {
-              true -> search_no_results.visibility = View.VISIBLE
-              false -> adapter.tracks.addAll(tracks)
-            }
-
-            adapter.notifyDataSetChanged()
+            adapter.tracks.addAll(tracks)
+            refresh()
           }
         }
 
@@ -99,6 +95,20 @@ class SearchActivity : AppCompatActivity() {
     })
   }
 
+  private fun refresh() {
+    adapter.notifyDataSetChanged()
+
+    if (adapter.artists.size + adapter.albums.size + adapter.tracks.size == 0) {
+      search_no_results.visibility = View.VISIBLE
+    } else {
+      search_no_results.visibility = View.GONE
+    }
+
+    if (done == 3) {
+      search_spinner.visibility = View.INVISIBLE
+    }
+  }
+
   inner class SearchResultClickListener : SearchAdapter.OnSearchResultClickListener {
     override fun onArtistClick(holder: View?, artist: Artist) {
       ArtistsFragment.openAlbums(this@SearchActivity, artist)

app/src/main/java/com/github/apognu/otter/adapters/SearchAdapter.kt

@@ -2,6 +2,8 @@ package com.github.apognu.otter.adapters
 
 import android.annotation.SuppressLint
 import android.content.Context
+import android.graphics.PorterDuff
+import android.graphics.PorterDuffColorFilter
 import android.graphics.Typeface
 import android.os.Build
 import android.view.Gravity
@@ -69,10 +71,6 @@ class SearchAdapter(private val context: Context?, private val listener: OnSearc
     return ResultType.Track.ordinal
   }
 
-  override fun onAttachedToRecyclerView(recyclerView: RecyclerView) {
-    super.onAttachedToRecyclerView(recyclerView)
-  }
-
   override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
     val view = when (viewType) {
       ResultType.Header.ordinal -> LayoutInflater.from(context).inflate(R.layout.row_search_header, parent, false)
@@ -93,27 +91,33 @@ class SearchAdapter(private val context: Context?, private val listener: OnSearc
         if (position == 0) {
           holder.title.text = context.getString(R.string.artists)
           holder.itemView.visibility = View.VISIBLE
+          holder.itemView.layoutParams = RecyclerView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)
 
           if (artists.isEmpty()) {
             holder.itemView.visibility = View.GONE
+            holder.itemView.layoutParams = RecyclerView.LayoutParams(0, 0)
           }
         }
 
         if (position == (artists.size + 1)) {
           holder.title.text = context.getString(R.string.albums)
           holder.itemView.visibility = View.VISIBLE
+          holder.itemView.layoutParams = RecyclerView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)
 
           if (albums.isEmpty()) {
             holder.itemView.visibility = View.GONE
+            holder.itemView.layoutParams = RecyclerView.LayoutParams(0, 0)
           }
         }
 
         if (position == (artists.size + albums.size + 2)) {
           holder.title.text = context.getString(R.string.tracks)
           holder.itemView.visibility = View.VISIBLE
+          holder.itemView.layoutParams = RecyclerView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)
 
           if (tracks.isEmpty()) {
             holder.itemView.visibility = View.GONE
+            holder.itemView.layoutParams = RecyclerView.LayoutParams(0, 0)
           }
         }
       }
@@ -160,6 +164,8 @@ class SearchAdapter(private val context: Context?, private val listener: OnSearc
         holder.artist.typeface = Typeface.create(holder.artist.typeface, Typeface.NORMAL)
       })
 
+    holder.title.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0)
+
     if (resultType == ResultType.Track.ordinal) {
       (item as? Track)?.let { track ->
         context?.let { context ->
@@ -183,6 +189,23 @@ class SearchAdapter(private val context: Context?, private val listener: OnSearc
             }
           }
 
+          when (track.cached || track.downloaded) {
+            true -> holder.title.setCompoundDrawablesWithIntrinsicBounds(R.drawable.downloaded, 0, 0, 0)
+            false -> holder.title.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0)
+          }
+
+          if (track.cached && !track.downloaded) {
+            holder.title.compoundDrawables.forEach {
+              it?.colorFilter = PorterDuffColorFilter(context.getColor(R.color.cached), PorterDuff.Mode.SRC_IN)
+            }
+          }
+
+          if (track.downloaded) {
+            holder.title.compoundDrawables.forEach {
+              it?.colorFilter = PorterDuffColorFilter(context.getColor(R.color.downloaded), PorterDuff.Mode.SRC_IN)
+            }
+          }
+
           holder.actions.setOnClickListener {
             PopupMenu(context, holder.actions, Gravity.START, R.attr.actionOverflowMenuStyle, 0).apply {
               inflate(R.menu.row_track)

app/src/main/java/com/github/apognu/otter/repositories/SearchRepository.kt

@@ -1,6 +1,7 @@
 package com.github.apognu.otter.repositories
 
 import android.content.Context
+import com.github.apognu.otter.Otter
 import com.github.apognu.otter.utils.*
 import com.github.kittinunf.fuel.gson.gsonDeserializerOf
 import com.google.gson.reflect.TypeToken
@@ -22,8 +23,18 @@ class TracksSearchRepository(override val context: Context?, query: String) : Re
       .toList()
       .flatten()
 
+    val downloaded = TracksRepository.getDownloadedIds() ?: listOf()
+
     data.map { track ->
       track.favorite = favorites.contains(track.id)
+      track.downloaded = downloaded.contains(track.id)
+
+      track.bestUpload()?.let { upload ->
+        val url = mustNormalizeUrl(upload.listen_url)
+
+        track.cached = Otter.get().exoCache.isCached(url, 0, upload.duration * 1000L)
+      }
+
       track
     }
   }

app/src/main/java/com/github/apognu/otter/repositories/TracksRepository.kt

@@ -19,22 +19,21 @@ class TracksRepository(override val context: Context?, albumId: Int) : Repositor
   override fun uncache(reader: BufferedReader) = gsonDeserializerOf(TracksCache::class.java).deserialize(reader)
 
   companion object {
-    suspend fun getDownloadedIds(): List<Int>? {
-      return RequestBus.send(Request.GetDownloads).wait<com.github.apognu.otter.utils.Response.Downloads>()?.let { response ->
-        val ids: MutableList<Int> = mutableListOf()
+    fun getDownloadedIds(): List<Int>? {
+      val cursor = Otter.get().exoDownloadManager.downloadIndex.getDownloads()
+      val ids: MutableList<Int> = mutableListOf()
 
-        while (response.cursor.moveToNext()) {
-          val download = response.cursor.download
+      while (cursor.moveToNext()) {
+        val download = cursor.download
 
-          download.getMetadata()?.let {
-            if (download.state == Download.STATE_COMPLETED) {
-              ids.add(it.id)
-            }
+        download.getMetadata()?.let {
+          if (download.state == Download.STATE_COMPLETED) {
+            ids.add(it.id)
           }
         }
-
-        ids
       }
+
+      return ids
     }
   }
 

app/src/main/java/com/github/apognu/otter/utils/EventBus.kt

@@ -4,7 +4,6 @@ import com.github.apognu.otter.Otter
 import com.google.android.exoplayer2.offline.Download
 import com.google.android.exoplayer2.offline.DownloadCursor
 import kotlinx.coroutines.Dispatchers.IO
-import kotlinx.coroutines.Dispatchers.Main
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.channels.Channel
 import kotlinx.coroutines.flow.asFlow
@@ -89,7 +88,7 @@ object CommandBus {
 object RequestBus {
   fun send(request: Request): Channel<Response> {
     return Channel<Response>().also {
-      GlobalScope.launch(Main) {
+      GlobalScope.launch(IO) {
         request.channel = it
 
         Otter.get().requestBus.offer(request)

app/src/main/res/layout/activity_search.xml

@@ -18,28 +18,39 @@
     <androidx.cardview.widget.CardView
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
-      android:layout_margin="8dp"
+      android:layout_marginStart="8dp"
+      android:layout_marginTop="16dp"
+      android:layout_marginEnd="8dp"
+      android:layout_marginBottom="0dp"
       android:elevation="4dp">
 
-      <androidx.appcompat.widget.SearchView
-        android:id="@+id/search"
+      <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        app:iconifiedByDefault="false"
-        app:queryBackground="@android:color/transparent"
-        app:queryHint="@string/search_placeholder" />
+        android:orientation="vertical">
+
+        <androidx.appcompat.widget.SearchView
+          android:id="@+id/search"
+          android:layout_width="match_parent"
+          android:layout_height="wrap_content"
+          app:iconifiedByDefault="false"
+          app:queryBackground="@android:color/transparent"
+          app:queryHint="@string/search_placeholder" />
+
+        <ProgressBar
+          android:id="@+id/search_spinner"
+          style="?android:attr/progressBarStyleHorizontal"
+          android:layout_width="match_parent"
+          android:layout_height="wrap_content"
+          android:layout_marginTop="-12dp"
+          android:layout_marginBottom="-12dp"
+          android:indeterminate="true"
+          android:visibility="invisible" />
+
+      </LinearLayout>
 
     </androidx.cardview.widget.CardView>
 
-    <ProgressBar
-      android:id="@+id/search_spinner"
-      android:layout_width="32dp"
-      android:layout_height="32dp"
-      android:layout_gravity="center"
-      android:layout_marginTop="16dp"
-      android:indeterminate="true"
-      android:visibility="gone" />
-
     <TextView
       android:id="@+id/search_empty"
       android:layout_width="match_parent"

app/src/main/res/layout/row_album_grid.xml

@@ -3,7 +3,7 @@
   xmlns:tools="http://schemas.android.com/tools"
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
-  android:background="?android:attr/selectableItemBackground"
+  android:background="@drawable/ripple"
   android:orientation="vertical"
   android:padding="8dp"
   android:transitionGroup="true"