For #2390 - Adds the onboarding welcome message

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

@@ -58,7 +58,6 @@ import org.mozilla.fenix.mvi.ActionBusFactory
 import org.mozilla.fenix.mvi.getAutoDisposeObservable
 import org.mozilla.fenix.mvi.getManagedEmitter
 import org.mozilla.fenix.onboarding.FenixOnboarding
-import org.mozilla.fenix.onboarding.Onboarding
 import org.mozilla.fenix.settings.SupportUtils
 import org.mozilla.fenix.utils.ItsNotBrokenSnack
 import kotlin.coroutines.CoroutineContext

app/src/main/java/org/mozilla/fenix/home/sessioncontrol/SessionControlAdapter.kt

@@ -19,6 +19,7 @@ import org.mozilla.fenix.home.sessioncontrol.viewholders.CollectionHeaderViewHol
 import org.mozilla.fenix.home.sessioncontrol.viewholders.NoCollectionMessageViewHolder
 import org.mozilla.fenix.home.sessioncontrol.viewholders.CollectionViewHolder
 import org.mozilla.fenix.home.sessioncontrol.viewholders.TabInCollectionViewHolder
+import org.mozilla.fenix.home.sessioncontrol.viewholders.onboarding.OnboardingHeaderViewHolder
 import java.lang.IllegalStateException
 
 sealed class AdapterItem {
@@ -33,6 +34,8 @@ sealed class AdapterItem {
     data class CollectionItem(val collection: TabCollection) : AdapterItem()
     data class TabInCollectionItem(val collection: TabCollection, val tab: Tab, val isLastTab: Boolean) : AdapterItem()
 
+    object OnboardingHeader : AdapterItem()
+
     val viewType: Int
         get() = when (this) {
             is TabHeader -> TabHeaderViewHolder.LAYOUT_ID
@@ -45,6 +48,7 @@ sealed class AdapterItem {
             NoCollectionMessage -> NoCollectionMessageViewHolder.LAYOUT_ID
             is CollectionItem -> CollectionViewHolder.LAYOUT_ID
             is TabInCollectionItem -> TabInCollectionViewHolder.LAYOUT_ID
+            OnboardingHeader -> OnboardingHeaderViewHolder.LAYOUT_ID
         }
 }
 
@@ -75,6 +79,7 @@ class SessionControlAdapter(
             NoCollectionMessageViewHolder.LAYOUT_ID -> NoCollectionMessageViewHolder(view)
             CollectionViewHolder.LAYOUT_ID -> CollectionViewHolder(view, actionEmitter, job)
             TabInCollectionViewHolder.LAYOUT_ID -> TabInCollectionViewHolder(view, actionEmitter, job)
+            OnboardingHeaderViewHolder.LAYOUT_ID -> OnboardingHeaderViewHolder(view)
             else -> throw IllegalStateException()
         }
     }

app/src/main/java/org/mozilla/fenix/home/sessioncontrol/SessionControlUIView.kt

@@ -60,10 +60,14 @@ private fun privateModeAdapterItems(tabs: List<Tab>): List<AdapterItem> {
     return items
 }
 
+private fun onboardingAdapterItems(): List<AdapterItem> = listOf(
+    AdapterItem.OnboardingHeader
+)
+
 private fun SessionControlState.toAdapterList(): List<AdapterItem> = when (mode) {
     is Mode.Normal -> normalModeAdapterItems(tabs, collections)
     is Mode.Private -> privateModeAdapterItems(tabs)
-    is Mode.Onboarding -> listOf()
+    is Mode.Onboarding -> onboardingAdapterItems()
 }
 
 private fun collectionTabItems(collection: TabCollection) = collection.tabs.mapIndexed { index, tab ->

app/src/main/java/org/mozilla/fenix/home/sessioncontrol/viewholders/onboarding/OnboardingHeaderViewHolder.kt

@@ -0,0 +1,15 @@
+/* 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/. */
+
+package org.mozilla.fenix.home.sessioncontrol.viewholders.onboarding
+
+import android.view.View
+import androidx.recyclerview.widget.RecyclerView
+import org.mozilla.fenix.R
+
+class OnboardingHeaderViewHolder(view: View) : RecyclerView.ViewHolder(view) {
+    companion object {
+        const val LAYOUT_ID = R.layout.onboarding_header
+    }
+}

app/src/main/res/layout/onboarding_header.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/. -->
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/onboarding_header"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+    <TextView
+        android:id="@+id/header_text"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/onboarding_header"
+        android:textAppearance="@style/HeaderTextStyle"
+        android:textSize="22sp" />
+</FrameLayout>

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

@@ -485,4 +485,8 @@
     <string name="full_screen_notification">Entering full screen mode</string>
     <!-- Message for copying the URL via long press on the toolbar -->
     <string name="url_copied">URL copied</string>
+
+    <!-- Onboarding -->
+    <!-- Header text for onboarding -->
+    <string name="onboarding_header">Welcome to Firefox!</string>
 </resources>