From b1d1aee3732f20f3fce609f08618bc2fce47b801 Mon Sep 17 00:00:00 2001
From: Alex Hart <alex@signal.org>
Date: Tue, 8 Nov 2022 09:51:06 -0400
Subject: [PATCH] Fix infinite animation loop when system animations are
 disabled.

---
 .../securesms/stories/StoryFirstTimeNavigationView.kt |  5 +++++
 .../securesms/util/ContentResolverExtensions.kt       | 11 +++++++++++
 2 files changed, 16 insertions(+)
 create mode 100644 app/src/main/java/org/thoughtcrime/securesms/util/ContentResolverExtensions.kt

diff --git a/app/src/main/java/org/thoughtcrime/securesms/stories/StoryFirstTimeNavigationView.kt b/app/src/main/java/org/thoughtcrime/securesms/stories/StoryFirstTimeNavigationView.kt
index 0ab31a7de..6a17592d3 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/stories/StoryFirstTimeNavigationView.kt
+++ b/app/src/main/java/org/thoughtcrime/securesms/stories/StoryFirstTimeNavigationView.kt
@@ -19,6 +19,7 @@ import com.bumptech.glide.request.target.Target
 import org.thoughtcrime.securesms.R
 import org.thoughtcrime.securesms.blurhash.BlurHash
 import org.thoughtcrime.securesms.mms.GlideApp
+import org.thoughtcrime.securesms.util.areSystemAnimationsDisabled
 import org.thoughtcrime.securesms.util.visible
 
 class StoryFirstTimeNavigationView @JvmOverloads constructor(
@@ -118,6 +119,10 @@ class StoryFirstTimeNavigationView @JvmOverloads constructor(
   }
 
   private fun startLottieAnimations() {
+    if (context.contentResolver.areSystemAnimationsDisabled()) {
+      return
+    }
+
     isPlayingAnimations = true
     tapToAdvance.addAnimatorListener(object : AnimatorListenerAdapter() {
       override fun onAnimationEnd(animation: Animator?) {
diff --git a/app/src/main/java/org/thoughtcrime/securesms/util/ContentResolverExtensions.kt b/app/src/main/java/org/thoughtcrime/securesms/util/ContentResolverExtensions.kt
new file mode 100644
index 000000000..a3fe96971
--- /dev/null
+++ b/app/src/main/java/org/thoughtcrime/securesms/util/ContentResolverExtensions.kt
@@ -0,0 +1,11 @@
+package org.thoughtcrime.securesms.util
+
+import android.content.ContentResolver
+import android.provider.Settings
+
+fun ContentResolver.areSystemAnimationsDisabled(): Boolean {
+  val durationScale = Settings.System.getFloat(this, Settings.Global.ANIMATOR_DURATION_SCALE)
+  val transitionScale = Settings.System.getFloat(this, Settings.Global.TRANSITION_ANIMATION_SCALE)
+
+  return !(durationScale > 0f && transitionScale > 0f)
+}