Add file intent

Add the ability to view a music file in auxio when selecting the file from another app. The ability to play it will be added later.

app/src/main/AndroidManifest.xml

@@ -26,7 +26,19 @@
 
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.LAUNCHER" />
+
+                <category android:name="android.intent.category.APP_MUSIC" />
+                <action android:name="android.intent.action.MUSIC_PLAYER" />
+            </intent-filter>
+
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+
+                <data android:scheme="content" />
+                <data android:mimeType="audio/*" />
             </intent-filter>
         </activity>
         <service

app/src/main/java/org/oxycblt/auxio/MainActivity.kt

@@ -18,7 +18,6 @@ import org.oxycblt.auxio.ui.isEdgeOn
  * The single [AppCompatActivity] for Auxio.
  */
 class MainActivity : AppCompatActivity() {
-
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
@@ -47,6 +46,15 @@ class MainActivity : AppCompatActivity() {
         startService(Intent(this, PlaybackService::class.java))
     }
 
+    override fun onNewIntent(intent: Intent?) {
+        super.onNewIntent(intent)
+
+        // Since the activity is set to singleTask [Given that theres only MainActivity]
+        // We have to manually push the intent whenever we get one so that MainFragment
+        // can catch any file intents
+        setIntent(intent)
+    }
+
     @Suppress("DEPRECATION")
     private fun doEdgeToEdgeSetup(binding: ActivityMainBinding) {
         window?.apply {

app/src/main/java/org/oxycblt/auxio/MainFragment.kt

@@ -1,5 +1,6 @@
 package org.oxycblt.auxio
 
+import android.content.Intent
 import android.content.res.ColorStateList
 import android.os.Bundle
 import android.view.LayoutInflater
@@ -117,6 +118,17 @@ class MainFragment : Fragment() {
         return binding.root
     }
 
+    override fun onResume() {
+        super.onResume()
+
+        val intent = requireActivity().intent
+
+        if (intent != null && intent.action == Intent.ACTION_VIEW) {
+            logD("Attempting to navigate from file intent")
+            detailModel.navigateWithIntent(intent, requireActivity().application)
+        }
+    }
+
     override fun onDestroyView() {
         super.onDestroyView()
 

app/src/main/java/org/oxycblt/auxio/detail/DetailViewModel.kt

@@ -1,12 +1,17 @@
 package org.oxycblt.auxio.detail
 
+import android.app.Application
+import android.content.Intent
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.launch
 import org.oxycblt.auxio.music.Album
 import org.oxycblt.auxio.music.Artist
 import org.oxycblt.auxio.music.BaseModel
 import org.oxycblt.auxio.music.Genre
+import org.oxycblt.auxio.music.MusicStore
 import org.oxycblt.auxio.recycler.SortMode
 
 /**
@@ -40,6 +45,8 @@ class DetailViewModel : ViewModel() {
     private val mNavToItem = MutableLiveData<BaseModel?>()
     val navToItem: LiveData<BaseModel?> get() = mNavToItem
 
+    private val musicStore = MusicStore.getInstance()
+
     /**
      * Update the current navigation status
      * @param value Whether the current [DetailFragment] is navigating or not.
@@ -107,4 +114,13 @@ class DetailViewModel : ViewModel() {
     fun doneWithNavToItem() {
         mNavToItem.value = null
     }
+
+    /** Navigate to an item using a file [Intent] */
+    fun navigateWithIntent(intent: Intent, app: Application) {
+        val uri = intent.data ?: return
+
+        viewModelScope.launch {
+            mNavToItem.value = musicStore.getSongForUri(uri, app.contentResolver)
+        }
+    }
 }

app/src/main/java/org/oxycblt/auxio/loading/LoadingFragment.kt

@@ -62,7 +62,7 @@ class LoadingFragment : Fragment() {
 
         if (noPermissions()) {
             // MusicStore.Response.NO_PERMS isnt actually returned by MusicStore, its just
-            // a way to keep the current permission state on_hand
+            // a way to keep the current permission state across device changes
             loadingModel.notifyNoPermissions()
         }
 

app/src/main/java/org/oxycblt/auxio/music/Models.kt

@@ -23,6 +23,7 @@ sealed class Parent : BaseModel()
 
 /**
  * The data object for a song. Inherits [BaseModel].
+ * @property fileName The raw filename for this track
  * @property albumId  The Song's Album ID. Never use this outside of when attaching a song to its album.
  * @property track    The Song's Track number
  * @property duration The duration of the song, in millis.
@@ -35,6 +36,7 @@ sealed class Parent : BaseModel()
 data class Song(
     override val id: Long = -1,
     override val name: String,
+    val fileName: String,
     val albumId: Long = -1,
     val track: Int = -1,
     val duration: Long = 0,

app/src/main/java/org/oxycblt/auxio/music/MusicStore.kt

@@ -1,6 +1,9 @@
 package org.oxycblt.auxio.music
 
 import android.app.Application
+import android.content.ContentResolver
+import android.net.Uri
+import android.provider.OpenableColumns
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import org.oxycblt.auxio.logD
@@ -72,6 +75,20 @@ class MusicStore private constructor() {
         }
     }
 
+    /**
+     * Get the song for a specific URI.
+     */
+    suspend fun getSongForUri(uri: Uri, resolver: ContentResolver): Song? {
+        return withContext(Dispatchers.IO) {
+            resolver.query(uri, null, null, null, null)?.use { cursor ->
+                cursor.moveToFirst()
+                val fileName = cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME))
+
+                return@withContext songs.find { it.fileName == fileName }
+            }
+        }
+    }
+
     enum class Response {
         NO_MUSIC, NO_PERMS, FAILED, SUCCESS
     }

app/src/main/java/org/oxycblt/auxio/music/processing/MusicLoader.kt

@@ -158,12 +158,13 @@ class MusicLoader(private val app: Application) {
 
             while (cursor.moveToNext()) {
                 val id = cursor.getLong(idIndex)
-                val title = cursor.getString(titleIndex) ?: cursor.getString(fileIndex)
+                val title = cursor.getString(titleIndex)
+                val fileName = cursor.getString(fileIndex)
                 val albumId = cursor.getLong(albumIndex)
                 val track = cursor.getInt(trackIndex)
                 val duration = cursor.getLong(durationIndex)
 
-                songs.add(Song(id, title, albumId, track, duration))
+                songs.add(Song(id, title ?: fileName, fileName, albumId, track, duration))
             }
 
             cursor.close()

app/src/main/res/values-de/strings.xml

@@ -87,7 +87,7 @@
     <string name="setting_behavior_rewind_prev">Zurückspulen, bevor zurück springen</string>
     <string name="setting_behavior_rewind_prev_desc">Zurückspulen, bevor zum vorheriger Lied springen</string>
     <string name="setting_behavior_save" >Wiedergabezustand abspeichern</string>
-    <string name="setting_behavior_save_desc">der aktuell Wiedergabezustand jetzt abspeichern</string>
+    <string name="setting_behavior_save_desc">Der aktuell Wiedergabezustand jetzt abspeichern</string>
 
     <!-- Error Namespace | Error Labels -->
     <string name="error_no_music">Keine Musik gefunden</string>