From 5ba49f66a0fd4df0cb538ce7b628f896b9986e0c Mon Sep 17 00:00:00 2001
From: Michael Debertol <michael.debertol@gmail.com>
Date: Sat, 5 Sep 2020 22:28:39 +0200
Subject: [PATCH] Fix top tab tray entry/exit animations

---
 .../mozilla/fenix/tabtray/TabTrayDialogFragment.kt |  4 ++++
 app/src/main/res/anim/fade_in_down.xml             | 14 ++++++++++++++
 app/src/main/res/anim/fade_out_up.xml              | 14 ++++++++++++++
 app/src/main/res/values/styles.xml                 |  5 +++++
 4 files changed, 37 insertions(+)
 create mode 100644 app/src/main/res/anim/fade_in_down.xml
 create mode 100644 app/src/main/res/anim/fade_out_up.xml

diff --git a/app/src/main/java/org/mozilla/fenix/tabtray/TabTrayDialogFragment.kt b/app/src/main/java/org/mozilla/fenix/tabtray/TabTrayDialogFragment.kt
index ca5dfa50c..20c110afc 100644
--- a/app/src/main/java/org/mozilla/fenix/tabtray/TabTrayDialogFragment.kt
+++ b/app/src/main/java/org/mozilla/fenix/tabtray/TabTrayDialogFragment.kt
@@ -169,6 +169,10 @@ class TabTrayDialogFragment : AppCompatDialogFragment(), UserInteractionHandler
         val activity = activity as HomeActivity
         val isPrivate = activity.browsingModeManager.mode.isPrivate
 
+        if (requireContext().settings().useTopTabsTray) {
+            dialog?.window?.attributes?.windowAnimations = R.style.TopTabTrayAnimation
+        }
+
         val thumbnailLoader = ThumbnailLoader(requireContext().components.core.thumbnailStorage)
         val adapter = FenixTabsAdapter(requireContext(), thumbnailLoader)
         currentOrientation = resources.configuration.orientation
diff --git a/app/src/main/res/anim/fade_in_down.xml b/app/src/main/res/anim/fade_in_down.xml
new file mode 100644
index 000000000..f28805739
--- /dev/null
+++ b/app/src/main/res/anim/fade_in_down.xml
@@ -0,0 +1,14 @@
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+        License, v. 2.0. If a copy of the MPL was not distributed with this
+        file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <alpha
+        android:interpolator="@android:interpolator/decelerate_quad"
+        android:fromAlpha="0" android:toAlpha="1"
+        android:duration="150" />
+    <translate
+        android:interpolator="@android:interpolator/decelerate_quad"
+        android:fromYDelta="-7%" android:toYDelta="0%"
+        android:duration="150"/>
+</set>
diff --git a/app/src/main/res/anim/fade_out_up.xml b/app/src/main/res/anim/fade_out_up.xml
new file mode 100644
index 000000000..d7f1a58d6
--- /dev/null
+++ b/app/src/main/res/anim/fade_out_up.xml
@@ -0,0 +1,14 @@
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+        License, v. 2.0. If a copy of the MPL was not distributed with this
+        file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <alpha
+        android:interpolator="@android:interpolator/accelerate_quad"
+        android:fromAlpha="1" android:toAlpha="0"
+        android:duration="125" />
+    <translate
+        android:interpolator="@android:interpolator/accelerate_quad"
+        android:fromYDelta="0%" android:toYDelta="-7%"
+        android:duration="125"/>
+</set>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index ec488d897..fbf1db2ec 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -274,6 +274,11 @@
         <item name="android:windowExitAnimation">@anim/fade_out</item>
     </style>
 
+    <style name="TopTabTrayAnimation">
+        <item name="android:windowEnterAnimation">@anim/fade_in_down</item>
+        <item name="android:windowExitAnimation">@anim/fade_out_up</item>
+    </style>
+
     <!-- UI button styling -->
     <style name="NeutralButton" parent="Widget.MaterialComponents.Button.TextButton">
         <item name="iconTint">@color/button_text_color</item>