tv: add text when there are no tunnels

Signed-off-by: Jason A. Donenfeld <[email protected]>

Author: zx2c4

ui/src/main/java/com/wireguard/android/activity/TvMainActivity.kt

@@ -84,6 +84,8 @@ class TvMainActivity : AppCompatActivity() {
                         if (isDeleting.get()) {
                             try {
                                 item.deleteAsync()
+                                if (this@TvMainActivity.binding.tunnels?.isEmpty() != false)
+                                    isDeleting.set(false)
                             } catch (e: Throwable) {
                                 val error = ErrorMessages[e]
                                 val message = getString(R.string.config_delete_error, error)

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

@@ -35,8 +35,8 @@
             android:layout_marginTop="5dp"
             app:cardElevation="2dp"
             app:contentPadding="0dp"
-            app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent">
 
             <ImageView
@@ -54,6 +54,7 @@
             android:layout_height="0dp"
             android:layout_marginTop="16dp"
             android:orientation="horizontal"
+            android:visibility="@{tunnels.isEmpty() ? View.GONE : View.VISIBLE}"
             app:configurationHandler="@{rowConfigurationHandler}"
             app:items="@{tunnels}"
             app:layout="@{@layout/tv_tunnel_list_item}"
@@ -65,6 +66,19 @@
             tools:itemCount="10"
             tools:listitem="@layout/tv_tunnel_list_item" />
 
+        <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}"
+            app:layout_constraintBottom_toTopOf="@id/delete_button"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/banner_logo"
+            tools:visibility="gone" />
+
         <com.google.android.material.button.MaterialButton
             android:id="@+id/import_button"
             style="@style/Widget.MaterialComponents.Button"

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

@@ -103,6 +103,7 @@
     <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_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>
     <string name="dns_servers">DNS servers</string>