For #355 - Adds history to the recyclerview

app/src/main/java/org/mozilla/fenix/library/LibraryFragment.kt

@@ -5,7 +5,6 @@
 package org.mozilla.fenix.library
 
 import android.os.Bundle
-import android.util.Log
 import android.view.LayoutInflater
 import android.view.Menu
 import android.view.MenuInflater
@@ -13,12 +12,9 @@ import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
 import androidx.appcompat.app.AppCompatActivity
-import androidx.constraintlayout.widget.Group
 import androidx.fragment.app.Fragment
 import androidx.navigation.Navigation
 import kotlinx.android.synthetic.main.fragment_library.*
-import org.jetbrains.anko.constraint.layout.group
-import org.jetbrains.anko.view
 import org.mozilla.fenix.R
 
 class LibraryFragment : Fragment() {

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

@@ -4,8 +4,13 @@
 package org.mozilla.fenix.library.history
 
 import android.view.ViewGroup
-import org.mozilla.fenix.home.sessions.SessionsUIView
-import org.mozilla.fenix.mvi.*
+import org.mozilla.fenix.mvi.Action
+import org.mozilla.fenix.mvi.ActionBusFactory
+import org.mozilla.fenix.mvi.Change
+import org.mozilla.fenix.mvi.UIComponent
+import org.mozilla.fenix.mvi.ViewState
+
+data class HistoryItem(val url: String)
 
 class HistoryComponent(
     private val container: ViewGroup,
@@ -19,7 +24,7 @@ class HistoryComponent(
 
     override val reducer: (HistoryState, HistoryChange) -> HistoryState = { state, change ->
         when (change) {
-            is HistoryChange.Changed -> state // copy state with changes here
+            is HistoryChange.Change -> state.copy(items = change.list)
         }
     }
 
@@ -30,12 +35,12 @@ class HistoryComponent(
     }
 }
 
-data class HistoryState(val items: List<String>) : ViewState
+data class HistoryState(val items: List<HistoryItem>) : ViewState
 
 sealed class HistoryAction : Action {
     object Select : HistoryAction()
 }
 
 sealed class HistoryChange : Change {
-    object Changed : HistoryChange()
+    data class Change(val list: List<HistoryItem>) : HistoryChange()
 }

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

@@ -15,10 +15,21 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.fragment.app.Fragment
 import androidx.navigation.Navigation
 import kotlinx.android.synthetic.main.fragment_history.view.*
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
 import org.mozilla.fenix.R
+import org.mozilla.fenix.ext.requireComponents
 import org.mozilla.fenix.mvi.ActionBusFactory
+import kotlin.coroutines.CoroutineContext
+
+class HistoryFragment : Fragment(), CoroutineScope {
+
+    lateinit var job: Job
+    override val coroutineContext: CoroutineContext
+        get() = Dispatchers.Main + job
 
-class HistoryFragment : Fragment() {
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
@@ -32,18 +43,40 @@ class HistoryFragment : Fragment() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+        job = Job()
+
         setHasOptionsMenu(true)
         (activity as AppCompatActivity).supportActionBar?.show()
     }
 
+    override fun onDestroy() {
+        super.onDestroy()
+        job.cancel()
+    }
+
     override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
         inflater.inflate(R.menu.library_menu, menu)
     }
 
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        val eventEmitter = ActionBusFactory.get(this)
+
+        launch {
+            val items = requireComponents.core.historyStorage.getVisited().map { HistoryItem(it) }
+
+            launch(Dispatchers.Main) {
+                eventEmitter.emit(HistoryChange::class.java, HistoryChange.Change(items))
+            }
+        }
+    }
+
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         return when (item.itemId) {
             R.id.libraryClose -> {
-                Navigation.findNavController(requireActivity(), R.id.container).popBackStack(R.id.browserFragment, false)
+                Navigation.findNavController(requireActivity(), R.id.container)
+                    .popBackStack(R.id.browserFragment, false)
                 true
             }
             R.id.librarySearch -> {

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

@@ -5,8 +5,14 @@
 
 package org.mozilla.fenix.library.history
 
+import android.content.Context
+import android.graphics.Color
+import android.os.Build
 import android.view.LayoutInflater
 import android.view.ViewGroup
+import android.widget.RelativeLayout
+import android.widget.TextView
+import androidx.annotation.RequiresApi
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import io.reactivex.Observable
@@ -28,10 +34,43 @@ class HistoryUIView(
 
     init {
         view.apply {
+            adapter = HistoryAdapter(context)
             layoutManager = LinearLayoutManager(container.context)
         }
     }
 
     override fun updateView() = Consumer<HistoryState> {
+        (view.adapter as HistoryAdapter).updateData(it.items)
+    }
+}
+
+private class HistoryAdapter(val context: Context) : RecyclerView.Adapter<HistoryAdapter.ViewHolder>() {
+    class ViewHolder(val textView: TextView) : RecyclerView.ViewHolder(textView)
+
+    private var items: List<HistoryItem> = emptyList()
+
+    fun updateData(items: List<HistoryItem>) {
+        this.items = items
+        notifyDataSetChanged()
+    }
+
+    @RequiresApi(Build.VERSION_CODES.M)
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val textView = TextView(context).apply {
+            val lp = RelativeLayout.LayoutParams(
+                RelativeLayout.LayoutParams.WRAP_CONTENT, // Width of TextView
+                RelativeLayout.LayoutParams.WRAP_CONTENT
+            )
+            setLayoutParams(lp)
+            setText("This is a sample TextView...")
+            setTextColor(Color.parseColor("#ff0000"))
+        }
+        return ViewHolder(textView)
+    }
+
+    override fun getItemCount(): Int = items.count()
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.textView.text = "Cell: ${items[position]}"
     }
 }