Update window insets logic for gallery and review screens.

app/src/main/java/org/thoughtcrime/securesms/mediasend/CameraDisplay.kt

@@ -109,13 +109,19 @@ enum class CameraDisplay(
       return (cameraCaptureButtonSize - cameraCaptureImageButtonSize) / 2
     }
 
+    /**
+     * Get the camera display type given the current window metrics. Note that this
+     * will automatically invert the aspect ratio in the case of a non-portrait orientation,
+     * since we fix camera to portrait.
+     */
     @JvmStatic
     fun getDisplay(activity: Activity): CameraDisplay {
       val windowMetricsCalculator = WindowMetricsCalculator.getOrCreate()
       val windowMetrics = windowMetricsCalculator.computeCurrentWindowMetrics(activity)
       val width = windowMetrics.bounds.width()
       val height = windowMetrics.bounds.height()
-      val aspectRatio = width.toFloat() / height
+      val winAr = width.toFloat() / height
+      val aspectRatio = if (winAr > 1f) 1 / winAr else winAr
 
       return when {
         aspectRatio <= DISPLAY_20_9.aspectRatio -> DISPLAY_20_9

app/src/main/java/org/thoughtcrime/securesms/mediasend/v2/gallery/MediaGalleryFragment.kt

@@ -4,6 +4,7 @@ import android.os.Bundle
 import android.view.View
 import androidx.activity.OnBackPressedCallback
 import androidx.constraintlayout.widget.ConstraintLayout
+import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.updateLayoutParams
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.viewModels
@@ -18,6 +19,7 @@ import org.thoughtcrime.securesms.databinding.V2MediaGalleryFragmentBinding
 import org.thoughtcrime.securesms.mediasend.Media
 import org.thoughtcrime.securesms.mediasend.MediaRepository
 import org.thoughtcrime.securesms.util.Material3OnScrollHelper
+import org.thoughtcrime.securesms.util.SystemWindowInsetsSetter
 import org.thoughtcrime.securesms.util.ViewUtil
 import org.thoughtcrime.securesms.util.adapter.mapping.MappingAdapter
 import org.thoughtcrime.securesms.util.fragments.requireListener
@@ -53,12 +55,7 @@ class MediaGalleryFragment : Fragment(R.layout.v2_media_gallery_fragment) {
     callbacks = requireListener()
     val binding = V2MediaGalleryFragmentBinding.bind(view)
 
-    binding.root.setPadding(
-      0,
-      0,
-      0,
-      ViewUtil.getNavigationBarHeight(view)
-    )
+    SystemWindowInsetsSetter.attach(view, viewLifecycleOwner, WindowInsetsCompat.Type.navigationBars())
 
     binding.mediaGalleryToolbar.updateLayoutParams<ConstraintLayout.LayoutParams> {
       topMargin = ViewUtil.getStatusBarHeight(view)

app/src/main/java/org/thoughtcrime/securesms/mediasend/v2/review/MediaReviewFragment.kt

@@ -43,7 +43,7 @@ import org.thoughtcrime.securesms.permissions.Permissions
 import org.thoughtcrime.securesms.recipients.Recipient
 import org.thoughtcrime.securesms.util.LifecycleDisposable
 import org.thoughtcrime.securesms.util.MediaUtil
-import org.thoughtcrime.securesms.util.ViewUtil
+import org.thoughtcrime.securesms.util.SystemWindowInsetsSetter
 import org.thoughtcrime.securesms.util.adapter.mapping.MappingAdapter
 import org.thoughtcrime.securesms.util.fragments.requireListener
 import org.thoughtcrime.securesms.util.views.TouchInterceptingFrameLayout
@@ -88,17 +88,12 @@ class MediaReviewFragment : Fragment(R.layout.v2_media_review_fragment) {
   override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
     postponeEnterTransition()
 
+    SystemWindowInsetsSetter.attach(view, viewLifecycleOwner)
+
     disposables.bindTo(viewLifecycleOwner)
 
     callback = requireListener()
 
-    view.setPadding(
-      0,
-      ViewUtil.getStatusBarHeight(view),
-      0,
-      ViewUtil.getNavigationBarHeight(view)
-    )
-
     drawToolButton = view.findViewById(R.id.draw_tool)
     cropAndRotateButton = view.findViewById(R.id.crop_and_rotate_tool)
     qualityButton = view.findViewById(R.id.quality_selector)

app/src/main/java/org/thoughtcrime/securesms/util/SystemWindowInsetsSetter.kt

@@ -0,0 +1,43 @@
+package org.thoughtcrime.securesms.util
+
+import android.view.View
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import androidx.lifecycle.DefaultLifecycleObserver
+import androidx.lifecycle.LifecycleOwner
+
+object SystemWindowInsetsSetter {
+  /**
+   * Updates the view whenever a layout occurs to properly set the system bar insets. setPadding is safe here because it will only trigger an extra layout
+   * call IF the values actually changed.
+   */
+  fun attach(view: View, lifecycleOwner: LifecycleOwner, @WindowInsetsCompat.Type.InsetsType insetType: Int = WindowInsetsCompat.Type.systemBars()) {
+    val listener = view.doOnEachLayout {
+      val insets = ViewCompat.getRootWindowInsets(view)?.getInsets(insetType)
+
+      if (insets != null) {
+        view.setPadding(
+          insets.left,
+          insets.top,
+          insets.right,
+          insets.bottom
+        )
+      } else {
+        view.setPadding(
+          0,
+          ViewUtil.getStatusBarHeight(view),
+          0,
+          ViewUtil.getNavigationBarHeight(view)
+        )
+      }
+    }
+
+    val lifecycleObserver = object : DefaultLifecycleObserver {
+      override fun onDestroy(owner: LifecycleOwner) {
+        view.removeOnLayoutChangeListener(listener)
+      }
+    }
+
+    lifecycleOwner.lifecycle.addObserver(lifecycleObserver)
+  }
+}