tv: hook up isFocused as observable property

This is kind of ridiculous, since the items own state should clearly be
queryable, but it doesn't appear to be the case here, so just shuffle it
around into kotlin and back.

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

3 files changed, 11 insertions, 4 deletions

diff --git a/ui/src/main/java/com/wireguard/android/activity/TvMainActivity.kt b/ui/src/main/java/com/wireguard/android/activity/TvMainActivity.kt
index 2b12d545..1528ac95 100644
--- a/ui/src/main/java/com/wireguard/android/activity/TvMainActivity.kt
+++ b/ui/src/main/java/com/wireguard/android/activity/TvMainActivity.kt
@@ -79,6 +79,10 @@ class TvMainActivity : AppCompatActivity() {
         binding.rowConfigurationHandler = object : ObservableKeyedRecyclerViewAdapter.RowConfigurationHandler<TvTunnelListItemBinding, ObservableTunnel> {
             override fun onConfigureRow(binding: TvTunnelListItemBinding, item: ObservableTunnel, position: Int) {
                 binding.isDeleting = isDeleting
+                binding.isFocused = ObservableBoolean()
+                binding.root.setOnFocusChangeListener { _, focused ->
+                    binding.isFocused?.set(focused)
+                }
                 binding.root.setOnClickListener {
                     lifecycleScope.launch {
                         if (isDeleting.get()) {
diff --git a/ui/src/main/res/layout/tv_tunnel_list_item.xml b/ui/src/main/res/layout/tv_tunnel_list_item.xml
index 0eedd87c..c45abd08 100644
--- a/ui/src/main/res/layout/tv_tunnel_list_item.xml
+++ b/ui/src/main/res/layout/tv_tunnel_list_item.xml
@@ -16,6 +16,10 @@
             type="androidx.databinding.ObservableBoolean" />
 
         <variable
+            name="isFocused"
+            type="androidx.databinding.ObservableBoolean" />
+
+        <variable
             name="key"
             type="String" />
 
@@ -24,16 +28,15 @@
             type="com.wireguard.android.model.ObservableTunnel" />
     </data>
 
-    <!-- Rather than changing the background tint to red for deleting mode, it should instead just change the selection color -->
     <com.google.android.material.card.MaterialCardView
         android:layout_width="225dp"
         android:layout_height="110dp"
         android:layout_margin="8dp"
         android:layout_marginTop="4dp"
         android:layout_marginBottom="0dp"
-        android:backgroundTint="@{isDeleting ? @color/error_tag_color : item.state == State.UP ? @color/secondary_dark_color : @color/tv_card_background}"
         android:checkable="true"
         android:focusable="true"
+        android:backgroundTint="@{(item.state == State.UP &amp;&amp; !isDeleting) ? @color/secondary_dark_color : (isDeleting &amp;&amp; isFocused) ? @color/tv_card_delete_background : @color/tv_card_background}"
         app:contentPadding="8dp">
 
         <androidx.constraintlayout.widget.ConstraintLayout
@@ -61,13 +64,12 @@
                 app:layout_constraintStart_toStartOf="parent"
                 tools:text="rx: 200 MB, tx: 100 MB" />
 
-            <!-- TODO: replace the "&amp;&amp; true" stuff with && isSelected() -->
             <com.google.android.material.textview.MaterialTextView
                 android:id="@+id/tunnel_delete"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:text="@string/tv_delete"
-                android:visibility="@{isDeleting &amp;&amp; true ? View.VISIBLE : View.GONE}"
+                android:visibility="@{(isDeleting &amp;&amp; isFocused) ? View.VISIBLE : View.GONE}"
                 app:layout_constraintBottom_toBottomOf="parent"
                 app:layout_constraintStart_toStartOf="parent"
                 tools:visibility="gone" />
diff --git a/ui/src/main/res/values/tv_colors.xml b/ui/src/main/res/values/tv_colors.xml
index b202d2a2..f330bedc 100644
--- a/ui/src/main/res/values/tv_colors.xml
+++ b/ui/src/main/res/values/tv_colors.xml
@@ -2,4 +2,5 @@
 <resources>
     <color name="tv_primary_color">#ff212121</color>
     <color name="tv_card_background">@color/tv_primary_color</color>
+    <color name="tv_card_delete_background">#b00020</color>
 </resources>