For #355 - Creates the history component

app/src/main/java/org/mozilla/fenix/library/history/HistoryComponent.kt

@@ -0,0 +1,41 @@
+/* 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.library.history
+
+import android.view.ViewGroup
+import org.mozilla.fenix.home.sessions.SessionsUIView
+import org.mozilla.fenix.mvi.*
+
+class HistoryComponent(
+    private val container: ViewGroup,
+    bus: ActionBusFactory,
+    override var initialState: HistoryState = HistoryState(emptyList())
+) :
+    UIComponent<HistoryState, HistoryAction, HistoryChange>(
+        bus.getManagedEmitter(HistoryAction::class.java),
+        bus.getSafeManagedObservable(HistoryChange::class.java)
+    ) {
+
+    override val reducer: (HistoryState, HistoryChange) -> HistoryState = { state, change ->
+        when (change) {
+            is HistoryChange.Changed -> state // copy state with changes here
+        }
+    }
+
+    override fun initView() = HistoryUIView(container, actionEmitter, changesObservable)
+
+    init {
+        render(reducer)
+    }
+}
+
+data class HistoryState(val items: List<String>) : ViewState
+
+sealed class HistoryAction : Action {
+    object Select : HistoryAction()
+}
+
+sealed class HistoryChange : Change {
+    object Changed : HistoryChange()
+}

app/src/main/java/org/mozilla/fenix/library/history/HistoryFragment.kt

@@ -14,16 +14,20 @@ import android.view.ViewGroup
 import androidx.appcompat.app.AppCompatActivity
 import androidx.fragment.app.Fragment
 import androidx.navigation.Navigation
+import kotlinx.android.synthetic.main.fragment_history.view.*
 import org.mozilla.fenix.R
+import org.mozilla.fenix.mvi.ActionBusFactory
 
 class HistoryFragment : Fragment() {
-
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        return inflater.inflate(R.layout.fragment_history, container, false)
+        val view = inflater.inflate(R.layout.fragment_history, container, false)
+        HistoryComponent(view.history_layout, ActionBusFactory.get(this), initialState = HistoryState(emptyList()))
+
+        return view
     }
 
     override fun onCreate(savedInstanceState: Bundle?) {

app/src/main/java/org/mozilla/fenix/library/history/HistoryUIView.kt

@@ -0,0 +1,37 @@
+
+/* 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.library.history
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import io.reactivex.Observable
+import io.reactivex.Observer
+import io.reactivex.functions.Consumer
+import org.mozilla.fenix.R
+import org.mozilla.fenix.mvi.UIView
+
+class HistoryUIView(
+    container: ViewGroup,
+    actionEmitter: Observer<HistoryAction>,
+    changesObservable: Observable<HistoryChange>
+) :
+    UIView<HistoryState, HistoryAction, HistoryChange>(container, actionEmitter, changesObservable) {
+
+    override val view: RecyclerView = LayoutInflater.from(container.context)
+        .inflate(R.layout.component_history, container, true)
+        .findViewById(R.id.history_list)
+
+    init {
+        view.apply {
+            layoutManager = LinearLayoutManager(container.context)
+        }
+    }
+
+    override fun updateView() = Consumer<HistoryState> {
+    }
+}

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

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.recyclerview.widget.RecyclerView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/history_list"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent" />

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

@@ -4,9 +4,9 @@
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/history_layout"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
     tools:context="org.mozilla.fenix.library.history.HistoryFragment">
-
 </LinearLayout>

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

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <TextView
+        android:id="@+id/url"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="TextView" />
+</LinearLayout>