From 1b49b9bffbe02f8a4de0efd19c6c5b7cb79e4aa4 Mon Sep 17 00:00:00 2001
From: Alex Hart <alex@signal.org>
Date: Wed, 15 Feb 2023 12:21:43 -0400
Subject: [PATCH] Hide system UI until the shared element transition completes.

---
 .../securesms/mediapreview/MediaPreviewV2Fragment.kt     | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/app/src/main/java/org/thoughtcrime/securesms/mediapreview/MediaPreviewV2Fragment.kt b/app/src/main/java/org/thoughtcrime/securesms/mediapreview/MediaPreviewV2Fragment.kt
index fc9367b50..7c3f80179 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/mediapreview/MediaPreviewV2Fragment.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/mediapreview/MediaPreviewV2Fragment.kt
@@ -185,6 +185,15 @@ class MediaPreviewV2Fragment : LoggingFragment(R.layout.fragment_media_preview_v
   private fun initializeFullScreenUi() {
     fullscreenHelper.configureToolbarLayout(binding.toolbarCutoutSpacer, binding.toolbar)
     fullscreenHelper.showAndHideWithSystemUI(requireActivity().window, binding.toolbarLayout, binding.mediaPreviewDetailsContainer)
+    fullscreenHelper.hideSystemUI()
+
+    lifecycleDisposable += viewModel.state.map {
+      it.isInSharedAnimation to it.loadState
+    }.distinctUntilChanged().subscribe { (isInSharedAnimation, loadState) ->
+      if (!isInSharedAnimation && loadState == MediaPreviewV2State.LoadState.MEDIA_READY) {
+        fullscreenHelper.showSystemUI()
+      }
+    }
   }
 
   private fun bindCurrentState(currentState: MediaPreviewV2State) {