Merge pull request #1252 from Bnyro/master

fix and cleanup downloads

app/src/main/java/com/github/libretube/activities/OfflinePlayerActivity.kt

@@ -13,6 +13,7 @@ import com.github.libretube.constants.IntentData
 import com.github.libretube.databinding.ActivityOfflinePlayerBinding
 import com.github.libretube.databinding.ExoStyledPlayerControlViewBinding
 import com.github.libretube.extensions.BaseActivity
+import com.github.libretube.util.DownloadHelper
 import com.google.android.exoplayer2.ExoPlayer
 import com.google.android.exoplayer2.MediaItem
 import com.google.android.exoplayer2.source.MergingMediaSource
@@ -69,20 +70,13 @@ class OfflinePlayerActivity : BaseActivity() {
     }
 
     private fun playVideo() {
-        val videoDownloadDir = File(
-            getExternalFilesDir(null),
-            "video"
-        )
-
+        val videoDownloadDir = DownloadHelper.getVideoDir(this)
         val videoFile = File(
             videoDownloadDir,
             fileName
         )
 
-        val audioDownloadDir = File(
-            getExternalFilesDir(null),
-            "audio"
-        )
+        val audioDownloadDir = DownloadHelper.getAudioDir(this)
         val audioFile = File(
             audioDownloadDir,
             fileName
@@ -129,6 +123,7 @@ class OfflinePlayerActivity : BaseActivity() {
         }
     }
 
+    @Suppress("DEPRECATION")
     private fun hideSystemBars() {
         window?.decorView?.systemUiVisibility = (
             View.SYSTEM_UI_FLAG_LAYOUT_STABLE

app/src/main/java/com/github/libretube/adapters/DownloadsAdapter.kt

@@ -9,11 +9,12 @@ import com.github.libretube.R
 import com.github.libretube.activities.OfflinePlayerActivity
 import com.github.libretube.constants.IntentData
 import com.github.libretube.databinding.DownloadedMediaRowBinding
+import com.github.libretube.obj.DownloadedFile
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import java.io.File
 
 class DownloadsAdapter(
-    private val files: MutableList<File>
+    private val files: MutableList<DownloadedFile>
 ) : RecyclerView.Adapter<DownloadsViewHolder>() {
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): DownloadsViewHolder {
         val binding = DownloadedMediaRowBinding.inflate(
@@ -29,7 +30,7 @@ class DownloadsAdapter(
         val file = files[position]
         holder.binding.apply {
             fileName.text = file.name
-            fileSize.text = "${file.length() / (1024 * 1024)} MiB"
+            fileSize.text = "${file.size / (1024 * 1024)} MiB"
 
             root.setOnClickListener {
                 val intent = Intent(root.context, OfflinePlayerActivity::class.java).also {

app/src/main/java/com/github/libretube/fragments/DownloadsFragment.kt

@@ -4,11 +4,13 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.core.view.size
 import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
 import com.github.libretube.adapters.DownloadsAdapter
 import com.github.libretube.databinding.FragmentDownloadsBinding
 import com.github.libretube.extensions.BaseFragment
-import java.io.File
+import com.github.libretube.util.DownloadHelper
 
 class DownloadsFragment : BaseFragment() {
     private lateinit var binding: FragmentDownloadsBinding
@@ -25,14 +27,26 @@ class DownloadsFragment : BaseFragment() {
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
-        val downloadDir = File(
-            context?.getExternalFilesDir(null),
-            "video"
-        )
+        val files = DownloadHelper.getDownloadedFiles(requireContext())
+
+        if (files.isEmpty()) return
+
+        binding.downloadsEmpty.visibility = View.GONE
+        binding.downloads.visibility = View.VISIBLE
 
         binding.downloads.layoutManager = LinearLayoutManager(context)
-        binding.downloads.adapter = DownloadsAdapter(
-            downloadDir.listFiles()?.toMutableList() ?: mutableListOf()
+        binding.downloads.adapter = DownloadsAdapter(files)
+
+        binding.downloads.adapter?.registerAdapterDataObserver(
+            object : RecyclerView.AdapterDataObserver() {
+                override fun onChanged() {
+                    if (binding.downloads.size == 0) {
+                        binding.downloads.visibility = View.GONE
+                        binding.downloadsEmpty.visibility = View.VISIBLE
+                    }
+                    super.onChanged()
+                }
+            }
         )
     }
 }

app/src/main/java/com/github/libretube/obj/DownloadedFile.kt

@@ -0,0 +1,7 @@
+package com.github.libretube.obj
+
+data class DownloadedFile(
+    val name: String,
+    val size: Long,
+    val type: Int
+)

app/src/main/java/com/github/libretube/services/DownloadService.kt

@@ -7,7 +7,6 @@ import android.content.Context
 import android.content.Intent
 import android.content.IntentFilter
 import android.net.Uri
-import android.os.Build
 import android.os.IBinder
 import android.util.Log
 import androidx.core.app.NotificationCompat
@@ -19,6 +18,7 @@ import com.github.libretube.constants.DOWNLOAD_FAILURE_NOTIFICATION_ID
 import com.github.libretube.constants.DOWNLOAD_SUCCESS_NOTIFICATION_ID
 import com.github.libretube.constants.DownloadType
 import com.github.libretube.extensions.TAG
+import com.github.libretube.util.DownloadHelper
 import java.io.File
 
 class DownloadService : Service() {
@@ -28,8 +28,6 @@ class DownloadService : Service() {
     private lateinit var audioUrl: String
     private var downloadType: Int = 3
 
-    private lateinit var videoDownloadDir: File
-    private lateinit var audioDownloadDir: File
     private var videoDownloadId: Long? = null
     private var audioDownloadId: Long? = null
 
@@ -64,19 +62,14 @@ class DownloadService : Service() {
     }
 
     private fun downloadManager() {
-        videoDownloadDir = File(
-            this.getExternalFilesDir(null),
-            "video"
-        )
+        // initialize and create the directories to download into
 
-        if (!videoDownloadDir.exists()) videoDownloadDir.mkdirs()
+        val videoDownloadDir = DownloadHelper.getVideoDir(this)
+        val audioDownloadDir = DownloadHelper.getAudioDir(this)
 
-        audioDownloadDir = File(
-            this.getExternalFilesDir(null),
-            "audio"
-        )
-
-        if (!audioDownloadDir.exists()) audioDownloadDir.mkdirs()
+        listOf(videoDownloadDir, audioDownloadDir).forEach {
+            if (!it.exists()) it.mkdir()
+        }
 
         // start download
         try {
@@ -113,9 +106,13 @@ class DownloadService : Service() {
     private val onDownloadComplete: BroadcastReceiver = object : BroadcastReceiver() {
         override fun onReceive(context: Context, intent: Intent) {
             // Fetching the download id received with the broadcast
-            val id = intent.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, -1)
             // Checking if the received broadcast is for our enqueued download by matching download id
-            when (id) {
+            when (
+                intent.getLongExtra(
+                    DownloadManager.EXTRA_DOWNLOAD_ID,
+                    -1
+                )
+            ) {
                 videoDownloadId -> videoDownloadId = null
                 audioDownloadId -> audioDownloadId = null
             }
@@ -147,13 +144,13 @@ class DownloadService : Service() {
     }
 
     private fun downloadFailedNotification() {
-        val builder = NotificationCompat.Builder(this@DownloadService, DOWNLOAD_CHANNEL_ID)
+        val builder = NotificationCompat.Builder(this, DOWNLOAD_CHANNEL_ID)
             .setSmallIcon(R.drawable.ic_download)
             .setContentTitle(resources.getString(R.string.downloadfailed))
             .setContentText(getString(R.string.fail))
             .setPriority(NotificationCompat.PRIORITY_HIGH)
 
-        with(NotificationManagerCompat.from(this@DownloadService)) {
+        with(NotificationManagerCompat.from(this)) {
             // notificationId is a unique int for each notification that you must define
             notify(DOWNLOAD_FAILURE_NOTIFICATION_ID, builder.build())
         }
@@ -161,13 +158,13 @@ class DownloadService : Service() {
 
     private fun downloadSucceededNotification() {
         Log.i(TAG(), "Download succeeded")
-        val builder = NotificationCompat.Builder(this@DownloadService, DOWNLOAD_CHANNEL_ID)
+        val builder = NotificationCompat.Builder(this, DOWNLOAD_CHANNEL_ID)
             .setSmallIcon(R.drawable.ic_download)
             .setContentTitle(resources.getString(R.string.success))
             .setContentText(getString(R.string.downloadsucceeded))
             .setPriority(NotificationCompat.PRIORITY_HIGH)
 
-        with(NotificationManagerCompat.from(this@DownloadService)) {
+        with(NotificationManagerCompat.from(this)) {
             // notificationId is a unique int for each notification that you must define
             notify(DOWNLOAD_SUCCESS_NOTIFICATION_ID, builder.build())
         }
@@ -181,14 +178,7 @@ class DownloadService : Service() {
 
         Globals.IS_DOWNLOAD_RUNNING = false
 
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
-            stopForeground(STOP_FOREGROUND_REMOVE)
-        } else {
-            @Suppress("DEPRECATION")
-            stopForeground(true)
-        }
-
-        stopService(Intent(this@DownloadService, DownloadService::class.java))
+        stopService(Intent(this, DownloadService::class.java))
         super.onDestroy()
     }
 }

app/src/main/java/com/github/libretube/util/DownloadHelper.kt

@@ -0,0 +1,62 @@
+package com.github.libretube.util
+
+import android.content.Context
+import com.github.libretube.constants.DownloadType
+import com.github.libretube.obj.DownloadedFile
+import java.io.File
+
+object DownloadHelper {
+    private fun getOfflineStorageDir(context: Context): File {
+        return context.getExternalFilesDir(null)!!
+    }
+
+    fun getVideoDir(context: Context): File {
+        return File(
+            getOfflineStorageDir(context),
+            "video"
+        )
+    }
+
+    fun getAudioDir(context: Context): File {
+        return File(
+            getOfflineStorageDir(context),
+            "audio"
+        )
+    }
+
+    fun getDownloadedFiles(context: Context): MutableList<DownloadedFile> {
+        val videoFiles = getVideoDir(context).listFiles()
+        val audioFiles = getAudioDir(context).listFiles()?.toMutableList()
+
+        val files = mutableListOf<DownloadedFile>()
+
+        videoFiles?.forEach {
+            var type = DownloadType.VIDEO
+            audioFiles?.forEach { audioFile ->
+                if (audioFile.name == it.name) {
+                    type = DownloadType.AUDIO_VIDEO
+                    audioFiles.remove(audioFile)
+                }
+            }
+            files.add(
+                DownloadedFile(
+                    name = it.name,
+                    size = it.length(),
+                    type = type
+                )
+            )
+        }
+
+        audioFiles?.forEach {
+            files.add(
+                DownloadedFile(
+                    name = it.name,
+                    size = it.length(),
+                    type = DownloadType.AUDIO
+                )
+            )
+        }
+
+        return files
+    }
+}

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

@@ -1,12 +1,36 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="?android:attr/colorBackground">
 
+    <LinearLayout
+        android:id="@+id/downloads_empty"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="center"
+        android:orientation="vertical">
+
+        <ImageView
+            android:layout_width="100dp"
+            android:layout_height="100dp"
+            android:layout_marginBottom="16dp"
+            android:src="@drawable/ic_download" />
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="10dp"
+            android:gravity="center"
+            android:text="@string/emptyList"
+            android:textSize="20sp"
+            android:textStyle="bold" />
+    </LinearLayout>
+
     <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/downloads"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
+        android:layout_height="wrap_content"
+        android:visibility="gone" />
 
-</LinearLayout>
+</FrameLayout>