playback: generalize make playback panel opening

If the user clicks on the playback bar in any context, including the
queue view, open the playback panel.

This adds another means to closing the queue that does not involve
swiping.

Resolves #402.

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## dev
+
+## What's Improved
+- Added ability to click on the playback bar to exit the queue view
+
 ## 3.0.4
 
 #### What's New

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

@@ -268,8 +268,8 @@ class MainFragment :
         }
 
         when (action) {
-            is MainNavigationAction.Expand -> tryExpandSheets()
-            is MainNavigationAction.Collapse -> tryCollapseSheets()
+            is MainNavigationAction.OpenPlaybackPanel -> tryOpenPlaybackPanel()
+            is MainNavigationAction.ClosePlaybackPanel -> tryClosePlaybackPanel()
             is MainNavigationAction.Directions ->
                 findNavController().navigateSafe(action.directions)
         }
@@ -279,7 +279,7 @@ class MainFragment :
 
     private fun handleExploreNavigation(item: Music?) {
         if (item != null) {
-            tryCollapseSheets()
+            tryClosePlaybackPanel()
         }
     }
 
@@ -318,22 +318,33 @@ class MainFragment :
         }
     }
 
-    private fun tryExpandSheets() {
+    private fun tryOpenPlaybackPanel() {
         val binding = requireBinding()
         val playbackSheetBehavior =
             binding.playbackSheet.coordinatorLayoutBehavior as PlaybackBottomSheetBehavior
+
         if (playbackSheetBehavior.state == BackportBottomSheetBehavior.STATE_COLLAPSED) {
             // Playback sheet is not expanded and not hidden, we can expand it.
             playbackSheetBehavior.state = BackportBottomSheetBehavior.STATE_EXPANDED
+            return
+        }
+
+        val queueSheetBehavior =
+            (binding.queueSheet.coordinatorLayoutBehavior ?: return) as QueueBottomSheetBehavior
+        if (playbackSheetBehavior.state == BackportBottomSheetBehavior.STATE_EXPANDED &&
+            queueSheetBehavior.state == BackportBottomSheetBehavior.STATE_EXPANDED) {
+            // Queue sheet and playback sheet is expanded, close the queue sheet so the
+            // playback panel can eb shown.
+            queueSheetBehavior.state = BackportBottomSheetBehavior.STATE_COLLAPSED
         }
     }
 
-    private fun tryCollapseSheets() {
+    private fun tryClosePlaybackPanel() {
         val binding = requireBinding()
         val playbackSheetBehavior =
             binding.playbackSheet.coordinatorLayoutBehavior as PlaybackBottomSheetBehavior
         if (playbackSheetBehavior.state == BackportBottomSheetBehavior.STATE_EXPANDED) {
-            // Make sure the queue is also collapsed here.
+            // Playback sheet (and possibly queue) needs to be collapsed.
             val queueSheetBehavior =
                 binding.queueSheet.coordinatorLayoutBehavior as QueueBottomSheetBehavior?
             playbackSheetBehavior.state = BackportBottomSheetBehavior.STATE_COLLAPSED

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

@@ -80,6 +80,7 @@ class MusicViewModel @Inject constructor(private val musicRepository: MusicRepos
 
     /**
      * Create a new generic playlist.
+     *
      * @param name The name of the new playlist. If null, the user will be prompted for a name.
      */
     fun createPlaylist(name: String? = null) {

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

@@ -56,7 +56,7 @@ class PlaybackBarFragment : ViewBindingFragment<FragmentPlaybackBarBinding>() {
 
         // --- UI SETUP ---
         binding.root.apply {
-            setOnClickListener { navModel.mainNavigateTo(MainNavigationAction.Expand) }
+            setOnClickListener { navModel.mainNavigateTo(MainNavigationAction.OpenPlaybackPanel) }
             setOnLongClickListener {
                 playbackModel.song.value?.let(navModel::exploreNavigateTo)
                 true

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

@@ -84,7 +84,9 @@ class PlaybackPanelFragment :
         }
 
         binding.playbackToolbar.apply {
-            setNavigationOnClickListener { navModel.mainNavigateTo(MainNavigationAction.Collapse) }
+            setNavigationOnClickListener {
+                navModel.mainNavigateTo(MainNavigationAction.ClosePlaybackPanel)
+            }
             setOnMenuItemClickListener(this@PlaybackPanelFragment)
         }
 

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

@@ -128,10 +128,10 @@ class NavigationViewModel : ViewModel() {
  */
 sealed class MainNavigationAction {
     /** Expand the playback panel. */
-    object Expand : MainNavigationAction()
+    object OpenPlaybackPanel : MainNavigationAction()
 
     /** Collapse the playback bottom sheet. */
-    object Collapse : MainNavigationAction()
+    object ClosePlaybackPanel : MainNavigationAction()
 
     /**
      * Navigate to the given [NavDirections].