ui: use real M3 themeing on TV

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

ui/src/main/java/com/wireguard/android/Application.kt

@@ -17,8 +17,6 @@ import androidx.datastore.preferences.core.PreferenceDataStoreFactory
 import androidx.datastore.preferences.core.Preferences
 import androidx.datastore.preferences.preferencesDataStoreFile
 import com.google.android.material.color.DynamicColors
-import com.google.android.material.color.DynamicColorsOptions
-import com.wireguard.android.activity.TvMainActivity
 import com.wireguard.android.backend.Backend
 import com.wireguard.android.backend.GoBackend
 import com.wireguard.android.backend.WgQuickBackend
@@ -89,9 +87,7 @@ class Application : android.app.Application() {
     override fun onCreate() {
         Log.i(TAG, USER_AGENT)
         super.onCreate()
-        DynamicColors.applyToActivitiesIfAvailable(this,
-            // TODO: Remove this second argument once the TV theme has a proper M3 color palette.
-            DynamicColorsOptions.Builder().setPrecondition { activity, _ -> activity !is TvMainActivity }.build())
+        DynamicColors.applyToActivitiesIfAvailable(this)
         rootShell = RootShell(applicationContext)
         toolsInstaller = ToolsInstaller(applicationContext, rootShell)
         preferencesDataStore = PreferenceDataStoreFactory.create { applicationContext.preferencesDataStoreFile("settings") }

ui/src/main/java/com/wireguard/android/databinding/BindingAdapters.kt

@@ -23,6 +23,7 @@ import com.wireguard.android.R
 import com.wireguard.android.databinding.ObservableKeyedRecyclerViewAdapter.RowConfigurationHandler
 import com.wireguard.android.widget.ToggleSwitch
 import com.wireguard.android.widget.ToggleSwitch.OnBeforeCheckedChangeListener
+import com.wireguard.android.widget.TvCardView
 import com.wireguard.config.Attribute
 import com.wireguard.config.InetNetwork
 import java.net.InetAddress
@@ -168,4 +169,16 @@ object BindingAdapters {
             0
         }
     }
+
+    @JvmStatic
+    @BindingAdapter("isUp")
+    fun setIsUp(card: TvCardView, up: Boolean) {
+        card.isUp = up
+    }
+
+    @JvmStatic
+    @BindingAdapter("isDeleting")
+    fun setIsDeleting(card: TvCardView, deleting: Boolean) {
+        card.isDeleting = deleting
+    }
 }

ui/src/main/java/com/wireguard/android/widget/TvCardView.kt

@@ -0,0 +1,44 @@
+/*
+ * Copyright © 2017-2023 WireGuard LLC. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package com.wireguard.android.widget
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.View
+import com.google.android.material.card.MaterialCardView
+import com.wireguard.android.R
+
+class TvCardView(context: Context?, attrs: AttributeSet?) : MaterialCardView(context, attrs) {
+    var isUp: Boolean = false
+        set(value) {
+            field = value
+            refreshDrawableState()
+        }
+    var isDeleting: Boolean = false
+        set(value) {
+            field = value
+            refreshDrawableState()
+        }
+
+    override fun onCreateDrawableState(extraSpace: Int): IntArray {
+        if (isUp || isDeleting) {
+            val drawableState = super.onCreateDrawableState(extraSpace + (if (isUp) 1 else 0) + (if (isDeleting) 1 else 0))
+            if (isUp) {
+                View.mergeDrawableStates(drawableState, STATE_IS_UP)
+            }
+            if (isDeleting) {
+                View.mergeDrawableStates(drawableState, STATE_IS_DELETING)
+            }
+            return drawableState
+        }
+        return super.onCreateDrawableState(extraSpace)
+    }
+
+    companion object {
+        private val STATE_IS_UP = intArrayOf(R.attr.state_isUp)
+        private val STATE_IS_DELETING = intArrayOf(R.attr.state_isDeleting)
+    }
+}