playback: use gesture insets in playback layout

When using gesture navigation, swipe up events might conflict with the
slide up behavior of the playback layout. To fix this, inset the
playback bar based on the gesture insets instead of the system bar
insets.

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

@@ -37,7 +37,7 @@ import org.oxycblt.auxio.settings.SettingsManager
 import org.oxycblt.auxio.util.isNight
 import org.oxycblt.auxio.util.logD
 import org.oxycblt.auxio.util.replaceInsetsCompat
-import org.oxycblt.auxio.util.systemBarsCompat
+import org.oxycblt.auxio.util.systemBarInsetsCompat
 
 /**
  * The single [AppCompatActivity] for Auxio.
@@ -113,18 +113,25 @@ class MainActivity : AppCompatActivity() {
 
     private fun applyEdgeToEdgeWindow(binding: ViewBinding) {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-            // Do modern edge to edge, which happens to be around twice the size of the
-            // old way of doing things. Thanks android, very cool!
             logD("Doing R+ edge-to-edge.")
 
             window?.setDecorFitsSystemWindows(false)
 
+            // "Should we automatically acquire the insets we need and return them
+            // whenever the user wants them?"
+            // "Nah, let's make the user define what insets they want instead through
+            // a barely-documented API that is not brought up in a single tutorial!"
+            // "Great idea!"
             binding.root.setOnApplyWindowInsetsListener { _, insets ->
                 WindowInsets.Builder()
                     .setInsets(
                         WindowInsets.Type.systemBars(),
                         insets.getInsetsIgnoringVisibility(WindowInsets.Type.systemBars())
                     )
+                    .setInsets(
+                        WindowInsets.Type.systemGestures(),
+                        insets.getInsetsIgnoringVisibility(WindowInsets.Type.systemGestures())
+                    )
                     .build()
                     .applyLeftRightInsets(binding)
             }
@@ -145,7 +152,7 @@ class MainActivity : AppCompatActivity() {
     }
 
     private fun WindowInsets.applyLeftRightInsets(binding: ViewBinding): WindowInsets {
-        val bars = systemBarsCompat
+        val bars = systemBarInsetsCompat
 
         binding.root.updatePadding(
             left = bars.left,

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

@@ -23,7 +23,7 @@ import android.util.AttributeSet
 import android.view.WindowInsets
 import android.widget.FrameLayout
 import androidx.core.view.updatePadding
-import org.oxycblt.auxio.util.systemBarsCompat
+import org.oxycblt.auxio.util.systemBarInsetsCompat
 
 /**
  * A container for a FloatingActionButton that enables edge-to-edge support.
@@ -43,7 +43,7 @@ class FloatingActionButtonContainer @JvmOverloads constructor(
     }
 
     override fun onApplyWindowInsets(insets: WindowInsets): WindowInsets {
-        updatePadding(bottom = insets.systemBarsCompat.bottom)
+        updatePadding(bottom = insets.systemBarInsetsCompat.bottom)
 
         return insets
     }

app/src/main/java/org/oxycblt/auxio/home/fastscroll/FastScrollRecyclerView.kt

@@ -44,7 +44,7 @@ import org.oxycblt.auxio.R
 import org.oxycblt.auxio.util.canScroll
 import org.oxycblt.auxio.util.resolveAttr
 import org.oxycblt.auxio.util.resolveDrawable
-import org.oxycblt.auxio.util.systemBarsCompat
+import org.oxycblt.auxio.util.systemBarInsetsCompat
 import kotlin.math.abs
 
 /**
@@ -315,7 +315,7 @@ class FastScrollRecyclerView @JvmOverloads constructor(
     }
 
     override fun onApplyWindowInsets(insets: WindowInsets): WindowInsets {
-        val bars = insets.systemBarsCompat
+        val bars = insets.systemBarInsetsCompat
 
         updatePadding(
             initialPadding.left, initialPadding.top, initialPadding.right,

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

@@ -19,6 +19,7 @@
 package org.oxycblt.auxio.playback
 
 import android.content.Context
+import android.os.Build
 import android.util.AttributeSet
 import android.view.WindowInsets
 import androidx.constraintlayout.widget.ConstraintLayout
@@ -31,7 +32,7 @@ import org.oxycblt.auxio.detail.DetailViewModel
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.util.inflater
 import org.oxycblt.auxio.util.resolveAttr
-import org.oxycblt.auxio.util.systemBarsCompat
+import org.oxycblt.auxio.util.systemBarInsetsCompat
 
 /**
  * A view displaying the playback state in a compact manner. This is only meant to be used
@@ -48,17 +49,39 @@ class PlaybackBarView @JvmOverloads constructor(
         id = R.id.playback_bar
 
         // Deliberately override the progress bar color [in a Lollipop-friendly way] so that
-        // we use colorSecondary instead of colorSurfaceVariant. This is for two reasons:
-        // 1. colorSurfaceVariant is used with the assumption that the view that is using it
-        // is not elevated and is therefore not colored. This view is elevated.
-        // 2. The way a solid color plays along with a ripple just doesnt look that good.
+        // we use colorSecondary instead of colorSurfaceVariant. This is because
+        // colorSurfaceVariant is used with the assumption that the view that is using it is
+        // not elevated and is therefore not colored. This view is elevated.
         binding.playbackProgressBar.trackColor = MaterialColors.compositeARGBWithAlpha(
             R.attr.colorSecondary.resolveAttr(context), (255 * 0.2).toInt()
         )
     }
 
     override fun onApplyWindowInsets(insets: WindowInsets): WindowInsets {
-        updatePadding(bottom = insets.systemBarsCompat.bottom)
+        // Since we swipe up this view, we need to make sure it does not collide with
+        // any gesture events. So, apply the system gesture insets if present and then
+        // only default to the system bar insets when there are no other options.
+        val gesturePadding = when {
+            Build.VERSION.SDK_INT >= Build.VERSION_CODES.R -> {
+                insets.getInsets(WindowInsets.Type.systemGestures()).bottom
+            }
+
+            Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q -> {
+                @Suppress("DEPRECATION")
+                insets.systemGestureInsets.bottom
+            }
+
+            else -> 0
+        }
+
+        updatePadding(
+            bottom =
+            if (gesturePadding != 0)
+                gesturePadding
+            else
+                insets.systemBarInsetsCompat.bottom
+        )
+
         return insets
     }
 

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

@@ -34,7 +34,7 @@ import org.oxycblt.auxio.detail.DetailViewModel
 import org.oxycblt.auxio.playback.state.LoopMode
 import org.oxycblt.auxio.ui.memberBinding
 import org.oxycblt.auxio.util.logD
-import org.oxycblt.auxio.util.systemBarsCompat
+import org.oxycblt.auxio.util.systemBarInsetsCompat
 
 /**
  * A [Fragment] that displays more information about the song, along with more media controls.
@@ -62,7 +62,7 @@ class PlaybackFragment : Fragment() {
         binding.detailModel = detailModel
 
         binding.root.setOnApplyWindowInsetsListener { _, insets ->
-            val bars = insets.systemBarsCompat
+            val bars = insets.systemBarInsetsCompat
 
             binding.root.updatePadding(
                 top = bars.top,

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

@@ -3,10 +3,8 @@ package org.oxycblt.auxio.playback
 import android.content.Context
 import android.content.res.ColorStateList
 import android.graphics.Canvas
-import android.graphics.Insets
 import android.graphics.Rect
 import android.graphics.drawable.LayerDrawable
-import android.os.Build
 import android.os.Bundle
 import android.os.Parcelable
 import android.util.AttributeSet
@@ -26,9 +24,10 @@ import org.oxycblt.auxio.BuildConfig
 import org.oxycblt.auxio.R
 import org.oxycblt.auxio.detail.DetailViewModel
 import org.oxycblt.auxio.music.Song
+import org.oxycblt.auxio.util.replaceInsetsCompat
 import org.oxycblt.auxio.util.resolveAttr
 import org.oxycblt.auxio.util.resolveDrawable
-import org.oxycblt.auxio.util.systemBarsCompat
+import org.oxycblt.auxio.util.systemBarInsetsCompat
 import kotlin.math.abs
 import kotlin.math.max
 import kotlin.math.min
@@ -169,7 +168,7 @@ class PlaybackLayout @JvmOverloads constructor(
             } catch (e: Exception) {
                 // Band-aid to stop the app crashing if we have to swap out the content view
                 // without warning (which we have to do sometimes because android is the worst
-                // thing ever
+                // thing ever)
             }
         }
     }
@@ -379,29 +378,11 @@ class PlaybackLayout @JvmOverloads constructor(
         // We kind to do a reverse-measure to figure out how we should inset this view.
         // Find how much space is lost by the panel and then combine that with the
         // bottom inset to find how much space we should apply.
-        val bars = insets.systemBarsCompat
+        val bars = insets.systemBarInsetsCompat
         val consumedByPanel = computePanelTopPosition(panelOffset) - measuredHeight
         val adjustedBottomInset = (consumedByPanel + bars.bottom).coerceAtLeast(0)
 
-        return when {
-            Build.VERSION.SDK_INT >= Build.VERSION_CODES.R -> {
-                WindowInsets.Builder(insets)
-                    .setInsets(
-                        WindowInsets.Type.systemBars(),
-                        Insets.of(bars.left, bars.top, bars.right, adjustedBottomInset)
-                    )
-                    .build()
-            }
-
-            Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1 -> {
-                @Suppress("DEPRECATION")
-                insets.replaceSystemWindowInsets(
-                    bars.left, bars.top, bars.right, adjustedBottomInset
-                )
-            }
-
-            else -> insets
-        }
+        return insets.replaceInsetsCompat(bars.left, bars.top, bars.right, adjustedBottomInset)
     }
 
     override fun onSaveInstanceState(): Parcelable = Bundle().apply {
@@ -536,8 +517,7 @@ class PlaybackLayout @JvmOverloads constructor(
     /**
      * Do the nice view animations that occur whenever we slide up the playback panel.
      * The way I transition is largely inspired by Android 12's notification panel, with the
-     * compact view fading out completely before the panel view fades in. We don't fade out the
-     * content though so we have cohesion between the other sliding transitions.
+     * compact view fading out completely before the panel view fades in.
      */
     private fun updatePanelTransition() {
         val ratio = max(panelOffset, 0f)
@@ -546,7 +526,6 @@ class PlaybackLayout @JvmOverloads constructor(
         val halfOutRatio = min(ratio / 0.5f, 1f)
         val halfInRatio = max(ratio - 0.5f, 0f) / 0.5f
 
-        // Optimize out drawing for this view completely
         contentView.apply {
             alpha = outRatio
             isInvisible = alpha == 0f
@@ -569,7 +548,7 @@ class PlaybackLayout @JvmOverloads constructor(
             // [reminder that this view also applies the bottom window inset] and we can't
             // apply padding to the whole container layout since that would adjust the size
             // of the playback view. This seems to be the least obtrusive way to do this.
-            lastInsets?.systemBarsCompat?.let { bars ->
+            lastInsets?.systemBarInsetsCompat?.let { bars ->
                 val params = layoutParams as FrameLayout.LayoutParams
                 val oldTopMargin = params.topMargin
 

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

@@ -38,7 +38,7 @@ import org.oxycblt.auxio.databinding.FragmentAboutBinding
 import org.oxycblt.auxio.home.HomeViewModel
 import org.oxycblt.auxio.util.logD
 import org.oxycblt.auxio.util.showToast
-import org.oxycblt.auxio.util.systemBarsCompat
+import org.oxycblt.auxio.util.systemBarInsetsCompat
 
 /**
  * A [BottomSheetDialogFragment] that shows Auxio's about screen.
@@ -55,7 +55,7 @@ class AboutFragment : Fragment() {
         val binding = FragmentAboutBinding.inflate(layoutInflater)
 
         binding.aboutContents.setOnApplyWindowInsetsListener { _, insets ->
-            binding.aboutContents.updatePadding(bottom = insets.systemBarsCompat.bottom)
+            binding.aboutContents.updatePadding(bottom = insets.systemBarInsetsCompat.bottom)
             insets
         }
 

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

@@ -40,7 +40,7 @@ import org.oxycblt.auxio.settings.pref.IntListPreference
 import org.oxycblt.auxio.util.isNight
 import org.oxycblt.auxio.util.logD
 import org.oxycblt.auxio.util.showToast
-import org.oxycblt.auxio.util.systemBarsCompat
+import org.oxycblt.auxio.util.systemBarInsetsCompat
 
 /**
  * The actual fragment containing the settings menu. Inherits [PreferenceFragmentCompat].
@@ -64,7 +64,7 @@ class SettingsListFragment : PreferenceFragmentCompat() {
             clipToPadding = false
 
             setOnApplyWindowInsetsListener { _, insets ->
-                updatePadding(bottom = insets.systemBarsCompat.bottom)
+                updatePadding(bottom = insets.systemBarInsetsCompat.bottom)
 
                 insets
             }

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

@@ -30,7 +30,7 @@ import androidx.core.content.res.ResourcesCompat
 import androidx.core.view.updatePadding
 import com.google.android.material.appbar.AppBarLayout
 import org.oxycblt.auxio.util.logE
-import org.oxycblt.auxio.util.systemBarsCompat
+import org.oxycblt.auxio.util.systemBarInsetsCompat
 
 /**
  * An [AppBarLayout] that fixes a bug with the default implementation where the lifted state
@@ -67,7 +67,7 @@ open class EdgeAppBarLayout @JvmOverloads constructor(
     override fun onApplyWindowInsets(insets: WindowInsets): WindowInsets {
         super.onApplyWindowInsets(insets)
 
-        updatePadding(top = insets.systemBarsCompat.top)
+        updatePadding(top = insets.systemBarInsetsCompat.top)
 
         return insets
     }

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

@@ -23,7 +23,7 @@ import android.util.AttributeSet
 import android.view.WindowInsets
 import androidx.core.view.updatePadding
 import androidx.recyclerview.widget.RecyclerView
-import org.oxycblt.auxio.util.systemBarsCompat
+import org.oxycblt.auxio.util.systemBarInsetsCompat
 
 /**
  * A [RecyclerView] that automatically applies insets to itself.
@@ -34,7 +34,7 @@ class EdgeRecyclerView @JvmOverloads constructor(
     defStyleAttr: Int = -1
 ) : RecyclerView(context, attrs, defStyleAttr) {
     override fun onApplyWindowInsets(insets: WindowInsets): WindowInsets {
-        updatePadding(bottom = insets.systemBarsCompat.bottom)
+        updatePadding(bottom = insets.systemBarInsetsCompat.bottom)
         return insets
     }
 }

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

@@ -122,7 +122,7 @@ fun @receiver:AttrRes Int.resolveAttr(context: Context): Int {
  * Resolve window insets in a version-aware manner. This can be used to apply padding to
  * a view that properly follows all the frustrating changes that were made between 8-11.
  */
-val WindowInsets.systemBarsCompat: Rect get() {
+val WindowInsets.systemBarInsetsCompat: Rect get() {
     return when {
         Build.VERSION.SDK_INT >= Build.VERSION_CODES.R -> {
             getInsets(WindowInsets.Type.systemBars()).run {