For #8212 - Fixes shadow/border when toolbar is on top (#8234)

app/src/main/java/org/mozilla/fenix/home/HomeFragment.kt

@@ -20,6 +20,9 @@ import android.widget.PopupWindow
 import androidx.annotation.StringRes
 import androidx.appcompat.app.AlertDialog
 import androidx.constraintlayout.widget.ConstraintLayout
+import androidx.constraintlayout.widget.ConstraintSet
+import androidx.constraintlayout.widget.ConstraintSet.BOTTOM
+import androidx.constraintlayout.widget.ConstraintSet.TOP
 import androidx.coordinatorlayout.widget.CoordinatorLayout
 import androidx.core.content.ContextCompat
 import androidx.core.view.updateLayoutParams
@@ -229,6 +232,18 @@ class HomeFragment : Fragment() {
                     gravity = Gravity.TOP
                 }
 
+            ConstraintSet().apply {
+                clone(view.toolbarLayout)
+                clear(view.bottomBarShadow.id, BOTTOM)
+                connect(view.bottomBarShadow.id, TOP, view.bottom_bar.id, BOTTOM)
+                applyTo(view.toolbarLayout)
+            }
+
+            view.bottom_bar.background = resources.getDrawable(
+                ThemeManager.resolveAttribute(R.attr.bottomBarBackgroundTop, requireContext()),
+                null
+            )
+
             view.homeAppBar.updateLayoutParams<ViewGroup.MarginLayoutParams> {
                 topMargin = HEADER_MARGIN.dpToPx(resources.displayMetrics)
             }

app/src/main/res/drawable/home_bottom_bar_background.xml

@@ -9,7 +9,7 @@
         <solid android:color="@color/foundation_normal_theme" />
     </shape>
 </item>
-<item android:height="1dp" >
+<item android:height="1dp">
     <shape android:shape="rectangle">
         <solid android:color="#1AFFFFFF" />
     </shape>

app/src/main/res/drawable/home_bottom_bar_background_top.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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/. -->
+
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+<item>
+    <shape>
+        <solid android:color="@color/foundation_normal_theme" />
+    </shape>
+</item>
+<item android:height="1dp" android:gravity="bottom">
+    <shape android:shape="rectangle">
+        <solid android:color="#1AFFFFFF" />
+    </shape>
+</item>
+</layer-list>

app/src/main/res/drawable/private_home_bottom_bar_background_gradient.xml

@@ -14,7 +14,7 @@
             android:type="linear" />
     </shape>
 </item>
-<item android:height="1dp" >
+<item android:height="1dp">
     <shape android:shape="rectangle">
         <solid android:color="#1AFFFFFF" />
     </shape>

app/src/main/res/drawable/private_home_bottom_bar_background_gradient_top.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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/. -->
+
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+<item>
+    <shape>
+        <gradient
+            android:angle="45"
+            android:startColor="#7529A7"
+            android:centerColor="#492E85"
+            android:endColor="#383372"
+            android:type="linear" />
+    </shape>
+</item>
+<item android:height="1dp" android:gravity="bottom">
+    <shape android:shape="rectangle">
+        <solid android:color="#1AFFFFFF" />
+    </shape>
+</item>
+</layer-list>

app/src/main/res/layout/fragment_home.xml

@@ -91,11 +91,21 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintBottom_toTopOf="@id/bottom_bar" />
 
+        <View
+            android:id="@+id/bottomBarHighlight"
+            android:layout_width="0dp"
+            android:layout_height="1dp"
+            android:background="@color/bottom_bar_shadow"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintBottom_toTopOf="@id/bottom_bar" />
+
         <View
             android:id="@+id/bottom_bar"
             android:layout_width="0dp"
             android:layout_height="56dp"
             android:background="?bottomBarBackground"
+            android:foregroundGravity="bottom"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent" />

app/src/main/res/values/attrs.xml

@@ -31,6 +31,7 @@
     <!-- Misc -->
     <attr name="homeBackground" format="reference"/>
     <attr name="bottomBarBackground" format="reference"/>
+    <attr name="bottomBarBackgroundTop" format="reference"/>
     <attr name="privateBrowsingButtonBackground" format="reference" />
     <attr name="privateBrowsingButtonAccent" format="reference" />
     <attr name="fenixLogo" format="reference" />

app/src/main/res/values/styles.xml

@@ -59,6 +59,7 @@
         <item name="fenixLogo">@drawable/ic_logo_wordmark_normal</item>
         <item name="homeBackground">@color/foundation_normal_theme</item>
         <item name="bottomBarBackground">@drawable/home_bottom_bar_background</item>
+        <item name="bottomBarBackgroundTop">@drawable/home_bottom_bar_background_top</item>
         <item name="privateBrowsingButtonBackground">@android:color/transparent</item>
         <item name="privateBrowsingButtonAccent">@color/primary_text_normal_theme</item>
         <item name="shieldLottieFile">@raw/shield_json</item>
@@ -147,6 +148,7 @@
         <item name="fenixLogo">@drawable/ic_logo_wordmark_private</item>
         <item name="homeBackground">@drawable/private_home_background_gradient</item>
         <item name="bottomBarBackground">@drawable/private_home_bottom_bar_background_gradient</item>
+        <item name="bottomBarBackgroundTop">@drawable/private_home_bottom_bar_background_gradient_top</item>
         <item name="privateBrowsingButtonBackground">@color/primary_text_private_theme</item>
         <item name="privateBrowsingButtonAccent">@color/above_private_theme</item>
         <item name="shieldLottieFile">@raw/shield_json_dark</item>