ui: fix landscape problems

Once again fix annoying issues that arise from the quirks of phone
landscape mode. A lot of these fixes can be re-rolled back into the
edge-to-edge code eventually, but it requires fitsSystemWindows to
be phased out entirely.

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

@@ -37,7 +37,9 @@ import org.oxycblt.auxio.util.logD
 
 /**
  * The single [AppCompatActivity] for Auxio.
- * TODO: Improve edge-to-edge everywhere
+ * TODO: Improve edge-to-edge everywhere and phase out fitsSystemWindows.
+ *  If you do this, then it will become trivial to merge a lot of the code [l/r padding],
+ *  fitsSystemWindow management into this activity.
  */
 class MainActivity : AppCompatActivity() {
     private val playbackModel: PlaybackViewModel by viewModels()

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

@@ -22,6 +22,7 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.core.view.isVisible
 import androidx.core.view.updatePadding
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
@@ -29,7 +30,6 @@ import org.oxycblt.auxio.databinding.FragmentMainBinding
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.playback.PlaybackViewModel
 import org.oxycblt.auxio.util.applyEdge
-import org.oxycblt.auxio.util.isLandscape
 import org.oxycblt.auxio.util.logD
 
 /**
@@ -52,7 +52,7 @@ class MainFragment : Fragment() {
         binding.lifecycleOwner = viewLifecycleOwner
 
         binding.applyEdge { bars ->
-            binding.root.updatePadding(bottom = bars.bottom)
+            binding.root.updatePadding(bottom = bars.bottom, left = bars.left, right = bars.right)
         }
 
         // --- VIEWMODEL SETUP ---
@@ -75,16 +75,6 @@ class MainFragment : Fragment() {
      * Handle the visibility of CompactPlaybackFragment. Done here so that there's a nice animation.
      */
     private fun handleCompactPlaybackVisibility(binding: FragmentMainBinding, song: Song?) {
-        if (song == null) {
-            logD("Hiding CompactPlaybackFragment since no song is being played.")
-
-            binding.mainPlayback.visibility = if (requireContext().isLandscape()) {
-                View.INVISIBLE
-            } else {
-                View.GONE
-            }
-        } else {
-            binding.mainPlayback.visibility = View.VISIBLE
-        }
+        binding.mainPlayback.isVisible = song != null
     }
 }

app/src/main/java/org/oxycblt/auxio/playback/queue/QueueFragment.kt

@@ -67,6 +67,7 @@ class QueueFragment : Fragment() {
         binding.lifecycleOwner = viewLifecycleOwner
 
         binding.applyEdge { bars ->
+            binding.root.updatePadding(left = bars.left, right = bars.right)
             binding.queueAppbar.updatePadding(top = bars.top)
             binding.queueRecycler.updatePadding(bottom = bars.bottom)
         }

app/src/main/java/org/oxycblt/auxio/settings/SettingsFragment.kt

@@ -55,12 +55,15 @@ class SettingsFragment : Fragment() {
         }
 
         binding.applyEdge { bars ->
+            binding.root.updatePadding(left = bars.left, right = bars.right)
             binding.settingsAppbar.updatePadding(top = bars.top)
 
             // The padding + clipToPadding method does not seem to work with a
             // FragmentContainerView. Do it directly in SettingsListFragment instead.
         }
 
+        binding.settingsAppbar.liftOnScrollTargetViewId = androidx.preference.R.id.recycler_view
+
         return binding.root
     }
 }

app/src/main/java/org/oxycblt/auxio/util/ViewUtil.kt

@@ -32,15 +32,16 @@ import androidx.annotation.AttrRes
 import androidx.annotation.ColorInt
 import androidx.annotation.ColorRes
 import androidx.annotation.DrawableRes
-import androidx.coordinatorlayout.widget.CoordinatorLayout
 import androidx.core.content.ContextCompat
-import androidx.core.view.updatePadding
 import androidx.recyclerview.widget.GridLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import androidx.viewbinding.ViewBinding
 import com.google.android.material.appbar.AppBarLayout
 import org.oxycblt.auxio.R
 
+// TODO: Make a helper AppBarLayout of some kind that auto-updates the lifted state. I know
+//  what to do, it's just hard to make it work correctly.
+
 /**
  * Apply the recommended spans for a [RecyclerView].
  *
@@ -155,20 +156,6 @@ fun AppBarLayout.makeScrollingViewFade(view: View) {
     )
 }
 
-/**
- * Force-update this [AppBarLayout]'s lifted state. This is useful when the dataset changes
- * and the lifted state must be updated.
- */
-fun AppBarLayout.updateLiftedState(recycler: RecyclerView) {
-    post {
-        val coordinator = (parent as CoordinatorLayout)
-
-        (layoutParams as CoordinatorLayout.LayoutParams).behavior?.onNestedPreScroll(
-            coordinator, this, recycler, 0, 0, IntArray(2), 0
-        )
-    }
-}
-
 /**
  * Apply edge-to-edge tweaks to the root of a [ViewBinding].
  * @param onApply What to do when the system bar insets are provided
@@ -184,16 +171,11 @@ fun ViewBinding.applyEdge(onApply: (Rect) -> Unit) {
 fun View.applyEdge(onApply: (Rect) -> Unit) {
     when {
         Build.VERSION.SDK_INT >= Build.VERSION_CODES.R -> {
-            setOnApplyWindowInsetsListener { v, insets ->
+            setOnApplyWindowInsetsListener { _, insets ->
                 val bars = insets.getInsets(WindowInsets.Type.systemBars()).run {
                     Rect(left, top, right, bottom)
                 }
 
-                updatePadding(
-                    left = bars.left,
-                    right = bars.right
-                )
-
                 onApply(bars)
 
                 insets
@@ -201,19 +183,13 @@ fun View.applyEdge(onApply: (Rect) -> Unit) {
         }
 
         Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1 -> {
-            setOnApplyWindowInsetsListener { v, insets ->
-                val bars = insets.run {
-                    Rect(
-                        systemWindowInsetLeft,
-                        systemWindowInsetTop,
-                        systemWindowInsetRight,
-                        systemWindowInsetBottom
-                    )
-                }
-
-                updatePadding(
-                    left = bars.left,
-                    right = bars.right
+            setOnApplyWindowInsetsListener { _, insets ->
+                @Suppress("DEPRECATION")
+                val bars = Rect(
+                    insets.systemWindowInsetLeft,
+                    insets.systemWindowInsetTop,
+                    insets.systemWindowInsetRight,
+                    insets.systemWindowInsetBottom
                 )
 
                 onApply(bars)