tv: wire up tunnel start/stop

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

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

@@ -6,12 +6,20 @@
 package com.wireguard.android.activity
 
 import android.os.Bundle
+import android.util.Log
 import android.widget.Toast
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AppCompatActivity
 import androidx.lifecycle.lifecycleScope
 import com.wireguard.android.Application
+import com.wireguard.android.R
+import com.wireguard.android.backend.GoBackend
+import com.wireguard.android.backend.Tunnel
+import com.wireguard.android.databinding.ObservableKeyedRecyclerViewAdapter
 import com.wireguard.android.databinding.TvActivityBinding
+import com.wireguard.android.databinding.TvTunnelListItemBinding
+import com.wireguard.android.model.ObservableTunnel
+import com.wireguard.android.util.ErrorMessages
 import com.wireguard.android.util.TunnelImporter
 import kotlinx.coroutines.launch
 
@@ -24,14 +32,56 @@ class TvMainActivity : AppCompatActivity() {
         }
     }
 
+    private var pendingTunnel: ObservableTunnel? = null
+    private val permissionActivityResultLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) {
+        val tunnel = pendingTunnel
+        if (tunnel != null)
+            setTunnelStateWithPermissionsResult(tunnel)
+        pendingTunnel = null
+    }
+
+    private fun setTunnelStateWithPermissionsResult(tunnel: ObservableTunnel) {
+        lifecycleScope.launch {
+            try {
+                tunnel.setStateAsync(Tunnel.State.TOGGLE)
+            } catch (e: Throwable) {
+                val error = ErrorMessages[e]
+                val message = getString(R.string.error_up, error)
+                Toast.makeText(this@TvMainActivity, message, Toast.LENGTH_LONG).show()
+                Log.e(TAG, message, e)
+            }
+        }
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         val binding = TvActivityBinding.inflate(layoutInflater)
         lifecycleScope.launch { binding.tunnels = Application.getTunnelManager().getTunnels() }
+        binding.rowConfigurationHandler = object : ObservableKeyedRecyclerViewAdapter.RowConfigurationHandler<TvTunnelListItemBinding, ObservableTunnel> {
+            override fun onConfigureRow(binding: TvTunnelListItemBinding, item: ObservableTunnel, position: Int) {
+                binding.root.setOnClickListener() {
+                    lifecycleScope.launch {
+                        if (Application.getBackend() is GoBackend) {
+                            val intent = GoBackend.VpnService.prepare(binding.root.context)
+                            if (intent != null) {
+                                pendingTunnel = item
+                                permissionActivityResultLauncher.launch(intent)
+                                return@launch
+                            }
+                        }
+                        setTunnelStateWithPermissionsResult(item)
+                    }
+                }
+            }
+        }
         binding.importButton.setOnClickListener {
             tunnelFileImportResultLauncher.launch("*/*")
         }
         binding.executePendingBindings()
         setContentView(binding.root)
     }
+
+    companion object {
+        private const val TAG = "WireGuard/TvMainActivity"
+    }
 }

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

@@ -10,6 +10,10 @@
         <variable
             name="tunnels"
             type="com.wireguard.android.databinding.ObservableKeyedArrayList&lt;String, ObservableTunnel&gt;" />
+
+        <variable
+            name="rowConfigurationHandler"
+            type="com.wireguard.android.databinding.ObservableKeyedRecyclerViewAdapter.RowConfigurationHandler" />
     </data>
 
     <androidx.constraintlayout.widget.ConstraintLayout
@@ -22,6 +26,7 @@
             android:layout_height="match_parent"
             android:layout_marginTop="16dp"
             android:orientation="horizontal"
+            app:configurationHandler="@{rowConfigurationHandler}"
             app:items="@{tunnels}"
             app:layout="@{@layout/tv_tunnel_list_item}"
             app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"

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

@@ -23,7 +23,10 @@
         android:layout_height="150dp"
         android:layout_marginStart="8dp"
         android:layout_marginEnd="8dp"
-        app:cardCornerRadius="12dp">
+        app:cardCornerRadius="12dp"
+        android:checkable="true"
+        android:focusable="true"
+        android:backgroundTint="@{item.state == State.UP ? @color/secondary_light_color : @color/primary_color}">
 
         <androidx.constraintlayout.widget.ConstraintLayout
             android:layout_width="match_parent"
@@ -39,15 +42,6 @@
                 app:layout_constraintTop_toTopOf="parent"
                 tools:text="@sample/interface_names.json/names/names/name" />
 
-            <com.wireguard.android.widget.ToggleSwitch
-                android:id="@+id/tunnel_toggle"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:checked="@{item.state == State.UP}"
-                app:layout_constraintEnd_toEndOf="parent"
-                app:layout_constraintTop_toTopOf="parent"
-                tools:checked="@sample/interface_names.json/names/checked/checked" />
-
             <!-- TODO: wire in updates here -->
             <com.google.android.material.textview.MaterialTextView
                 android:id="@+id/tunnel_transfer"