For #131 - Loads mozilla.org in the browser fragment

app/build.gradle

@@ -68,9 +68,17 @@ dependencies {
     implementation Deps.androidx_appcompat
     implementation Deps.androidx_constraintlayout
 
+    implementation Deps.mozilla_concept_engine
+    implementation Deps.mozilla_concept_storage
+
     implementation Deps.mozilla_browser_awesomebar
+    implementation Deps.mozilla_browser_engine_gecko_nightly
+    implementation Deps.mozilla_browser_session
     implementation Deps.mozilla_browser_toolbar
 
+    implementation Deps.mozilla_feature_intent
+    implementation Deps.mozilla_feature_session
+
     testImplementation Deps.junit
     androidTestImplementation Deps.tools_test_runner
     androidTestImplementation Deps.tools_espresso_core

app/src/main/java/org/mozilla/fenix/HomeActivity.kt

@@ -4,12 +4,31 @@
 
 package org.mozilla.fenix
 
+import android.content.Context
 import android.os.Bundle
+import android.util.AttributeSet
+import android.view.View
 import androidx.appcompat.app.AppCompatActivity
+import mozilla.components.concept.engine.EngineView
+import mozilla.components.feature.intent.IntentProcessor
+import mozilla.components.support.utils.SafeIntent
+import org.mozilla.fenix.components.Core
 
 class HomeActivity : AppCompatActivity() {
+
+    val core by lazy { Core(this) }
+    val sessionId by lazy {
+        SafeIntent(intent).getStringExtra(IntentProcessor.ACTIVE_SESSION_ID)
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_home)
     }
+
+    override fun onCreateView(parent: View?, name: String?, context: Context, attrs: AttributeSet?): View? =
+        when (name) {
+            EngineView::class.java.name -> core.engine.createView(context, attrs).asView()
+            else -> super.onCreateView(parent, name, context, attrs)
+        }
 }

app/src/main/java/org/mozilla/fenix/browser/BrowserFragment.kt

@@ -4,18 +4,53 @@
 package org.mozilla.fenix.browser
 
 import android.os.Bundle
+import android.transition.TransitionInflater
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleObserver
+import kotlinx.android.synthetic.main.fragment_browser.*
+import mozilla.components.feature.intent.IntentProcessor
+import mozilla.components.feature.session.SessionFeature
+import mozilla.components.feature.session.SessionUseCases
+import mozilla.components.support.utils.SafeIntent
+import org.mozilla.fenix.HomeActivity
 import org.mozilla.fenix.R
 
 class BrowserFragment : Fragment() {
 
+    private lateinit var sessionFeature: SessionFeature
+
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
         return inflater.inflate(R.layout.fragment_browser, container, false)
     }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        sharedElementEnterTransition = TransitionInflater.from(context).inflateTransition(android.R.transition.move)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+
+        val sessionManager = (activity as HomeActivity).core.sessionManager
+        val sessionId = (activity as HomeActivity).sessionId
+
+        sessionFeature = SessionFeature(
+            sessionManager,
+            SessionUseCases(sessionManager),
+            engineView,
+            sessionId)
+
+        lifecycle.addObservers(sessionFeature)
+    }
 }
+
+private fun Lifecycle.addObservers(vararg observers: LifecycleObserver) = observers.forEach { addObserver(it) }

app/src/main/java/org/mozilla/fenix/components/Core.kt

@@ -0,0 +1,87 @@
+/* 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.components
+
+import android.content.Context
+import android.content.SharedPreferences
+import android.preference.PreferenceManager
+import mozilla.components.browser.engine.gecko.GeckoEngine
+import mozilla.components.browser.session.Session
+import mozilla.components.browser.session.SessionManager
+import mozilla.components.browser.session.storage.SessionStorage
+import mozilla.components.concept.engine.DefaultSettings
+import mozilla.components.concept.engine.Engine
+import mozilla.components.concept.engine.EngineSession.TrackingProtectionPolicy
+import java.util.concurrent.TimeUnit
+
+/**
+ * Component group for all core browser functionality.
+ */
+class Core(private val context: Context) {
+
+    /**
+     * The browser engine component initialized based on the build
+     * configuration (see build variants).
+     */
+    val engine: Engine by lazy {
+        val prefs = PreferenceManager.getDefaultSharedPreferences(context)
+
+        val defaultSettings = DefaultSettings(
+            remoteDebuggingEnabled = false,
+            testingModeEnabled = false,
+            trackingProtectionPolicy = createTrackingProtectionPolicy(prefs)
+        )
+        GeckoEngine(context, defaultSettings)
+    }
+
+    /**
+     * The session manager component provides access to a centralized registry of
+     * all browser sessions (i.e. tabs). It is initialized here to persist and restore
+     * sessions from the [SessionStorage], and with a default session (about:blank) in
+     * case all sessions/tabs are closed.
+     */
+    val sessionManager by lazy {
+        val sessionStorage = SessionStorage(context, engine)
+
+        SessionManager(engine, defaultSession = { Session("about:blank") }).apply {
+            sessionStorage.restore()?.let { snapshot -> restore(snapshot) }
+
+            if (size == 0) {
+                val initialSession = Session("https://www.mozilla.org")
+                add(initialSession)
+            }
+
+            sessionStorage.autoSave(this)
+                .periodicallyInForeground(interval = 30, unit = TimeUnit.SECONDS)
+                .whenGoingToBackground()
+                .whenSessionsChange()
+        }
+    }
+
+    /**
+     * Constructs a [TrackingProtectionPolicy] based on current preferences.
+     *
+     * @param prefs the shared preferences to use when reading tracking
+     * protection settings.
+     * @param normalMode whether or not tracking protection should be enabled
+     * in normal browsing mode, defaults to the current preference value.
+     * @param privateMode whether or not tracking protection should be enabled
+     * in private browsing mode, default to the current preference value.
+     * @return the constructed tracking protection policy based on preferences.
+     */
+    fun createTrackingProtectionPolicy(
+        prefs: SharedPreferences = PreferenceManager.getDefaultSharedPreferences(context),
+        normalMode: Boolean = true,
+        privateMode: Boolean = true
+    ): TrackingProtectionPolicy {
+
+        return when {
+            normalMode && privateMode -> TrackingProtectionPolicy.all()
+            normalMode && !privateMode -> TrackingProtectionPolicy.all().forRegularSessionsOnly()
+            !normalMode && privateMode -> TrackingProtectionPolicy.all().forPrivateSessionsOnly()
+            else -> TrackingProtectionPolicy.none()
+        }
+    }
+}

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

@@ -17,6 +17,8 @@ import android.widget.TextView
 import androidx.annotation.RequiresApi
 import androidx.core.view.ViewCompat
 import androidx.fragment.app.Fragment
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleObserver
 import androidx.navigation.Navigation
 import androidx.navigation.fragment.FragmentNavigator
 import androidx.recyclerview.widget.LinearLayoutManager
@@ -44,7 +46,7 @@ class HomeFragment : Fragment() {
             val extras = FragmentNavigator.Extras.Builder().addSharedElement(
                 toolbar_wrapper, ViewCompat.getTransitionName(toolbar_wrapper)!!
             ).build()
-            Navigation.findNavController(it).navigate(R.id.action_homeFragment_to_searchFragment, null, null, extras)
+            Navigation.findNavController(it).navigate(R.id.action_homeFragment_to_browserFragment, null, null, extras)
         }
 
         session_list.apply {
@@ -84,4 +86,4 @@ private class SessionsAdapter(val context: Context) : RecyclerView.Adapter<Sessi
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
         holder.textView.text = "Cell: ${position}"
     }
-}
+}

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

@@ -2,37 +2,52 @@
 <!-- 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/. -->
-<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout
-    xmlns:app="http://schemas.android.com/apk/res-auto"
+        xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
+        xmlns:tools="http://schemas.android.com/tools"
-    android:layout_height="match_parent"
+        android:layout_width="match_parent"
-    tools:context=".browser.BrowserFragment">
+        android:layout_height="match_parent"
+        tools:context=".browser.BrowserFragment">
 
     <FrameLayout
-        android:id="@+id/toolbar_wrapper"
         android:layout_width="0dp"
-        android:layout_height="wrap_content"
+        android:layout_height="0dp"
-        android:layout_marginLeft="16dp"
+        app:layout_constraintTop_toTopOf="parent"
-        android:layout_marginTop="24dp"
+        app:layout_constraintBottom_toTopOf="@id/toolbar_wrapper"
-        android:layout_marginRight="16dp"
-        android:background="@drawable/home_search_background"
-        android:clipToPadding="false"
-        android:elevation="5dp"
-        android:outlineProvider="paddedBounds"
-        android:transitionName="firstTransitionName"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintStart_toStartOf="parent">
-        app:layout_constraintTop_toTopOf="parent">
+
+        <mozilla.components.concept.engine.EngineView
+                android:id="@+id/engineView"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent" />
+    </FrameLayout>
+
+    <FrameLayout
+            android:id="@+id/toolbar_wrapper"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="16dp"
+            android:layout_marginTop="24dp"
+            android:layout_marginRight="16dp"
+            android:background="@drawable/home_search_background"
+            android:clipToPadding="false"
+            android:elevation="5dp"
+            android:outlineProvider="paddedBounds"
+            android:transitionName="firstTransitionName"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintBottom_toBottomOf="parent">
 
         <mozilla.components.browser.toolbar.BrowserToolbar
-            android:id="@+id/toolbar"
+                android:id="@+id/toolbar"
-            android:layout_width="match_parent"
+                android:layout_width="match_parent"
-            android:layout_height="40dp"
+                android:layout_height="40dp"
-            android:layout_margin="8dp"
+                android:layout_margin="8dp"
-            android:background="@android:color/white"
+                android:background="@android:color/white"
-            android:clickable="true"
+                android:clickable="true"
-            android:focusable="true"
+                android:focusable="true"
-            android:focusableInTouchMode="true" />
+                android:focusableInTouchMode="true" />
     </FrameLayout>
-</androidx.coordinatorlayout.widget.CoordinatorLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

buildSrc/src/main/java/Dependencies.kt

@@ -5,7 +5,7 @@
 private object Versions {
     const val kotlin = "1.3.11"
     const val android_gradle_plugin = "3.2.1"
-    const val geckoNightly = "66.0.20181217093726"
+    const val geckoNightly = "66.0.20190111093148"
 
     const val androidx_appcompat = "1.0.2"
     const val androidx_constraint_layout = "2.0.0-alpha3"
@@ -32,9 +32,18 @@ object Deps {
     const val androidx_appcompat = "androidx.appcompat:appcompat:${Versions.androidx_appcompat}"
     const val androidx_constraintlayout = "androidx.constraintlayout:constraintlayout:${Versions.androidx_constraint_layout}"
 
+    const val mozilla_concept_engine = "org.mozilla.components:concept-engine:${Versions.mozilla_android_components}"
+    const val mozilla_concept_storage = "org.mozilla.components:concept-storage:${Versions.mozilla_android_components}"
+
     const val mozilla_browser_awesomebar = "org.mozilla.components:browser-awesomebar:${Versions.mozilla_android_components}"
+    const val mozilla_browser_engine_gecko_nightly = "org.mozilla.components:browser-engine-gecko-nightly:${Versions.mozilla_android_components}"
+    const val mozilla_browser_session = "org.mozilla.components:browser-session:${Versions.mozilla_android_components}"
     const val mozilla_browser_toolbar = "org.mozilla.components:browser-toolbar:${Versions.mozilla_android_components}"
 
+    const val mozilla_feature_intent = "org.mozilla.components:feature-intent:${Versions.mozilla_android_components}"
+    const val mozilla_feature_session = "org.mozilla.components:feature-session:${Versions.mozilla_android_components}"
+    const val mozilla_feature_storage = "org.mozilla.components:feature-storage:${Versions.mozilla_android_components}"
+
     const val junit = "junit:junit:${Versions.junit}"
     const val tools_test_runner = "com.android.support.test:runner:${Versions.test_tools}"
     const val tools_espresso_core = "com.android.support.test.espresso:espresso-core:${Versions.espresso_core}"