tv: use our own file picker

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

ui/src/main/res/layout/tv_activity.xml

@@ -9,16 +9,30 @@
 
         <import type="com.wireguard.android.model.ObservableTunnel" />
 
+        <import type="com.wireguard.android.activity.TvMainActivity.KeyedFile" />
+
         <variable
             name="isDeleting"
             type="androidx.databinding.ObservableBoolean" />
 
+        <variable
+            name="files"
+            type="com.wireguard.android.databinding.ObservableKeyedArrayList&lt;String, KeyedFile&gt;" />
+
+        <variable
+            name="filesRoot"
+            type="androidx.databinding.ObservableField&lt;String&gt;" />
+
         <variable
             name="tunnels"
             type="com.wireguard.android.databinding.ObservableKeyedArrayList&lt;String, ObservableTunnel&gt;" />
 
         <variable
-            name="rowConfigurationHandler"
+            name="tunnelRowConfigurationHandler"
+            type="com.wireguard.android.databinding.ObservableKeyedRecyclerViewAdapter.RowConfigurationHandler" />
+
+        <variable
+            name="filesRowConfigurationHandler"
             type="com.wireguard.android.databinding.ObservableKeyedRecyclerViewAdapter.RowConfigurationHandler" />
     </data>
 
@@ -54,8 +68,8 @@
             android:layout_height="0dp"
             android:layout_marginTop="16dp"
             android:orientation="horizontal"
-            android:visibility="@{tunnels.isEmpty() ? View.GONE : View.VISIBLE}"
-            app:configurationHandler="@{rowConfigurationHandler}"
+            android:visibility="@{(tunnels.isEmpty || !filesRoot.isEmpty) ? View.GONE : View.VISIBLE}"
+            app:configurationHandler="@{tunnelRowConfigurationHandler}"
             app:items="@{tunnels}"
             app:layout="@{@layout/tv_tunnel_list_item}"
             app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
@@ -66,13 +80,45 @@
             tools:itemCount="10"
             tools:listitem="@layout/tv_tunnel_list_item" />
 
+        <TextView
+            android:id="@+id/files_root_label"
+            style="@style/TextAppearance.MaterialComponents.Headline5"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal"
+            android:layout_marginStart="8dp"
+            android:text="@{filesRoot}"
+            android:visibility="@{filesRoot.isEmpty ? View.GONE : View.VISIBLE}"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/banner_logo"
+            tools:visibility="gone" />
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/files_list"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_marginTop="16dp"
+            android:orientation="horizontal"
+            android:visibility="@{filesRoot.isEmpty ? View.GONE : View.VISIBLE}"
+            app:configurationHandler="@{filesRowConfigurationHandler}"
+            app:items="@{files}"
+            app:layout="@{@layout/tv_file_list_item}"
+            app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
+            app:layout_constraintBottom_toTopOf="@id/import_button"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/files_root_label"
+            app:spanCount="5"
+            tools:itemCount="10"
+            tools:listitem="@layout/tv_file_list_item"
+            tools:visibility="gone" />
+
         <TextView
             style="@style/TextAppearance.MaterialComponents.Headline4"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_gravity="center_horizontal"
             android:text="@string/tv_add_tunnel_get_started"
-            android:visibility="@{tunnels.isEmpty() ? View.VISIBLE : View.GONE}"
+            android:visibility="@{(filesRoot.isEmpty &amp;&amp; tunnels.isEmpty) ? View.VISIBLE : View.GONE}"
             app:layout_constraintBottom_toTopOf="@id/delete_button"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
@@ -87,7 +133,7 @@
             android:layout_margin="16dp"
             android:minWidth="0dp"
             android:visibility="@{isDeleting ? View.GONE : View.VISIBLE}"
-            app:icon="@drawable/ic_action_add_white"
+            app:icon="@{filesRoot.isEmpty ? @drawable/ic_action_add_white : @drawable/ic_arrow_back}"
             app:iconPadding="0dp"
             app:iconTint="?attr/colorOnPrimary"
             app:layout_constraintBottom_toBottomOf="parent"
@@ -100,7 +146,7 @@
             android:layout_height="wrap_content"
             android:layout_margin="16dp"
             android:minWidth="0dp"
-            android:visibility="@{tunnels.isEmpty &amp;&amp; !isDeleting ? View.GONE : View.VISIBLE}"
+            android:visibility="@{((tunnels.isEmpty &amp;&amp; !isDeleting) || !filesRoot.isEmpty) ? View.GONE : View.VISIBLE}"
             app:icon="@{isDeleting ? @drawable/ic_arrow_back : @drawable/ic_action_delete}"
             app:iconPadding="0dp"
             app:iconTint="?attr/colorOnPrimary"

ui/src/main/res/layout/tv_file_list_item.xml

@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <data>
+
+        <import type="com.wireguard.android.activity.TvMainActivity.KeyedFile" />
+
+        <variable
+            name="key"
+            type="String" />
+
+        <variable
+            name="item"
+            type="KeyedFile" />
+    </data>
+
+    <com.google.android.material.card.MaterialCardView
+        android:layout_width="320dp"
+        android:layout_height="50dp"
+        android:layout_margin="8dp"
+        android:layout_marginTop="4dp"
+        android:layout_marginBottom="0dp"
+        android:backgroundTint="@color/tv_card_background"
+        android:checkable="true"
+        android:focusable="true"
+        app:contentPadding="8dp">
+
+        <androidx.constraintlayout.widget.ConstraintLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <com.google.android.material.textview.MaterialTextView
+                style="@style/TextAppearance.MaterialComponents.Headline5"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@{key}"
+                android:textColor="?attr/colorOnPrimary"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="parent" />
+
+        </androidx.constraintlayout.widget.ConstraintLayout>
+
+    </com.google.android.material.card.MaterialCardView>
+
+</layout>

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

@@ -102,7 +102,7 @@
     <string name="dark_theme_title">Use dark theme</string>
     <string name="delete">Delete</string>
     <string name="tv_delete">Select tunnel to delete</string>
-    <string name="tv_error">Your TV does not have a file picker</string>
+    <string name="tv_select_a_storage_drive">Select a storage drive</string>
     <string name="tv_add_tunnel_get_started">Add a tunnel to get started</string>
     <string name="disable_config_export_title">Disable config exporting</string>
     <string name="disable_config_export_description">Disabling config exporting makes private keys less accessible</string>