home: add selection actions

Implement actions for selections in the home view.

Play selected and shuffle selected have been removed for now until the
queue can be properly reworked

app/src/main/java/org/oxycblt/auxio/home/HomeFragment.kt

@@ -60,12 +60,7 @@ import org.oxycblt.auxio.ui.MainNavigationAction
 import org.oxycblt.auxio.ui.NavigationViewModel
 import org.oxycblt.auxio.ui.SelectionViewModel
 import org.oxycblt.auxio.ui.fragment.ViewBindingFragment
-import org.oxycblt.auxio.util.androidActivityViewModels
-import org.oxycblt.auxio.util.collect
-import org.oxycblt.auxio.util.collectImmediately
-import org.oxycblt.auxio.util.getColorCompat
-import org.oxycblt.auxio.util.lazyReflectedField
-import org.oxycblt.auxio.util.logD
+import org.oxycblt.auxio.util.*
 
 /**
  * The main "Launching Point" fragment of Auxio, allowing navigation to the detail views for each
@@ -118,6 +113,11 @@ class HomeFragment : ViewBindingFragment<FragmentHomeBinding>(), Toolbar.OnMenuI
             }
         }
 
+        binding.homeToolbarOverlay.registerListeners(
+            onExit = { selectionModel.consume() },
+            onMenuItemClick = this
+        )
+
         binding.homeToolbar.setOnMenuItemClickListener(this@HomeFragment)
 
         updateTabConfiguration()
@@ -175,11 +175,14 @@ class HomeFragment : ViewBindingFragment<FragmentHomeBinding>(), Toolbar.OnMenuI
 
     override fun onDestroyBinding(binding: FragmentHomeBinding) {
         super.onDestroyBinding(binding)
+        binding.homeToolbarOverlay.unregisterListeners()
         binding.homeToolbar.setOnMenuItemClickListener(null)
     }
 
     override fun onMenuItemClick(item: MenuItem): Boolean {
         when (item.itemId) {
+            // HOME
+
             R.id.action_search -> {
                 logD("Navigating to search")
                 initAxisTransitions(MaterialSharedAxis.Z)
@@ -205,6 +208,19 @@ class HomeFragment : ViewBindingFragment<FragmentHomeBinding>(), Toolbar.OnMenuI
                         .getSortForTab(homeModel.currentTab.value)
                         .withAscending(item.isChecked))
             }
+
+            // SELECTION
+
+            R.id.action_play_next_selection -> {
+                playbackModel.playNext(selectionModel.consume())
+                requireContext().showToast(R.string.lng_queue_added)
+            }
+
+            R.id.action_queue_add_selection -> {
+                playbackModel.addToQueue(selectionModel.consume())
+                requireContext().showToast(R.string.lng_queue_added)
+            }
+
             else -> {
                 // Sorting option was selected, mark it as selected and update the mode
                 item.isChecked = true

app/src/main/java/org/oxycblt/auxio/playback/PlaybackViewModel.kt

@@ -25,11 +25,7 @@ import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.launch
-import org.oxycblt.auxio.music.Album
-import org.oxycblt.auxio.music.Artist
-import org.oxycblt.auxio.music.Genre
-import org.oxycblt.auxio.music.MusicParent
-import org.oxycblt.auxio.music.Song
+import org.oxycblt.auxio.music.*
 import org.oxycblt.auxio.playback.state.InternalPlayer
 import org.oxycblt.auxio.playback.state.PlaybackStateDatabase
 import org.oxycblt.auxio.playback.state.PlaybackStateManager
@@ -44,6 +40,8 @@ import org.oxycblt.auxio.util.application
  * an interface that properly sanitizes input and abstracts functions unlike the master class.**
  *
  * @author OxygenCobalt
+ *
+ * TODO: Queue additions without a song should map to playing selected
  */
 class PlaybackViewModel(application: Application) :
     AndroidViewModel(application), PlaybackStateManager.Callback {
@@ -217,6 +215,11 @@ class PlaybackViewModel(application: Application) :
         playbackManager.playNext(settings.detailGenreSort.songs(genre.songs))
     }
 
+    /** Add a selection [selection] to the top of the queue. */
+    fun playNext(selection: List<Music>) {
+        playbackManager.playNext(selectionToSongs(selection))
+    }
+
     /** Add a [Song] to the end of the queue. */
     fun addToQueue(song: Song) {
         playbackManager.addToQueue(song)
@@ -237,6 +240,22 @@ class PlaybackViewModel(application: Application) :
         playbackManager.addToQueue(settings.detailGenreSort.songs(genre.songs))
     }
 
+    /** Add a selection [selection] to the top of the queue. */
+    fun addToQueue(selection: List<Music>) {
+        playbackManager.addToQueue(selectionToSongs(selection))
+    }
+
+    private fun selectionToSongs(selection: List<Music>): List<Song> {
+        return selection.flatMap {
+            when (it) {
+                is Album -> settings.detailAlbumSort.songs(it.songs)
+                is Artist -> settings.detailArtistSort.songs(it.songs)
+                is Genre -> settings.detailGenreSort.songs(it.songs)
+                is Song -> listOf(it)
+            }
+        }
+    }
+
     // --- STATUS FUNCTIONS ---
 
     /** Flip the playing status, e.g from playing to paused */

app/src/main/java/org/oxycblt/auxio/ui/SelectionToolbarOverlay.kt

@@ -3,6 +3,7 @@ package org.oxycblt.auxio.ui
 import android.animation.ValueAnimator
 import android.content.Context
 import android.util.AttributeSet
+import android.view.View
 import android.widget.FrameLayout
 import androidx.annotation.AttrRes
 import androidx.appcompat.widget.Toolbar
@@ -30,6 +31,8 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
         setNavigationIcon(R.drawable.ic_close_24)
     }
 
+    private val selectionMenu = selectionToolbar.menu
+
     private var fadeThroughAnimator: ValueAnimator? = null
 
     override fun onFinishInflate() {
@@ -45,9 +48,22 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
     /**
      * Add listeners for the selection toolbar.
      */
-    fun setListeners(onExit: Toolbar.OnMenuItemClickListener,
-                     onMenuItemClick: Toolbar.OnMenuItemClickListener) {
-        // TODO: Sub
+    fun registerListeners(onExit: OnClickListener,
+                          onMenuItemClick: Toolbar.OnMenuItemClickListener) {
+        selectionToolbar.apply {
+            setNavigationOnClickListener(onExit)
+            setOnMenuItemClickListener(onMenuItemClick)
+        }
+    }
+
+    /**
+     * Unregister listeners for this instance.
+     */
+    fun unregisterListeners() {
+        selectionToolbar.apply {
+            setNavigationOnClickListener(null)
+            setOnMenuItemClickListener(null)
+        }
     }
 
     /**
@@ -69,13 +85,16 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
         //  don't work due to translation)
         val targetInnerAlpha: Float
         val targetSelectionAlpha: Float
+        val targetDuration: Long
 
         if (selectionVisible) {
             targetInnerAlpha = 0f
             targetSelectionAlpha = 1f
+            targetDuration = context.resources.getInteger(R.integer.anim_fade_enter_duration).toLong()
         } else {
             targetInnerAlpha = 1f
             targetSelectionAlpha = 0f
+            targetDuration = context.resources.getInteger(R.integer.anim_fade_exit_duration).toLong()
         }
 
         if (innerToolbar.alpha == targetInnerAlpha &&
@@ -94,7 +113,7 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
         }
 
         fadeThroughAnimator = ValueAnimator.ofFloat(innerToolbar.alpha, targetInnerAlpha).apply {
-            duration = context.resources.getInteger(R.integer.anim_fade_enter_duration).toLong()
+            duration = targetDuration
             addUpdateListener {
                 changeToolbarAlpha(it.animatedValue as Float)
             }

app/src/main/java/org/oxycblt/auxio/ui/SelectionViewModel.kt

@@ -40,4 +40,11 @@ class SelectionViewModel : ViewModel() {
             _selected.value = items
         }
     }
+
+    /** Clear and return all selected items. */
+    fun consume(): List<Music> {
+        return _selected.value.also {
+            _selected.value = listOf()
+        }
+    }
 }

app/src/main/java/org/oxycblt/auxio/ui/fragment/MenuFragment.kt

@@ -185,12 +185,6 @@ abstract class MenuFragment<T : ViewBinding> : ViewBindingFragment<T>() {
 
     private fun musicMenuImpl(anchor: View, @MenuRes menuRes: Int, onSelect: (Int) -> Boolean) {
         menu(anchor, menuRes) {
-            for (item in menu.children) {
-                if (item.itemId == R.id.action_play_next || item.itemId == R.id.action_queue_add) {
-                    item.isEnabled = playbackModel.song.value != null
-                }
-            }
-
             setOnMenuItemClickListener { item -> onSelect(item.itemId) }
         }
     }

app/src/main/res/menu/menu_selection_actions.xml

@@ -2,20 +2,21 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
     <item
-        android:id="@+id/action_play_next"
+        android:id="@+id/action_play_next_selection"
         android:title="@string/lbl_play_next"
         android:icon="@drawable/ic_play_next_24"
         app:showAsAction="ifRoom"/>
     <item
-        android:id="@+id/action_queue_add"
+        android:id="@+id/action_queue_add_selection"
         android:title="@string/lbl_queue_add"
         app:showAsAction="never" />
-    <item
-        android:id="@+id/action_play"
-        android:title="@string/lbl_play_selected"
-        app:showAsAction="never"/>
-    <item
-        android:id="@+id/action_shuffle"
-        android:title="@string/lbl_shuffle_selected"
-        app:showAsAction="never"/>
+    <!-- TOOD: Disabled until able to get queue system into shape -->
+<!--    <item-->
+<!--        android:id="@+id/action_play_selection"-->
+<!--        android:title="@string/lbl_play_selected"-->
+<!--        app:showAsAction="never"/>-->
+<!--    <item-->
+<!--        android:id="@+id/action_shuffle_selection"-->
+<!--        android:title="@string/lbl_shuffle_selected"-->
+<!--        app:showAsAction="never"/>-->
 </menu>