From 839055385062dc46f1b75b6497db7c09672b9e37 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Wed, 18 Oct 2023 13:34:29 +0200
Subject: [PATCH] QuickTileService: require SYSTEM_ALERT_WINDOW to start
 background activity

Due to buggy changes in Android 14, we now need to bother the user about
enabling "draw over other apps" for the quick settings toggle to work
when the app isn't already running.

Link: https://issuetracker.google.com/issues/305035828
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
 ui/src/main/AndroidManifest.xml                        |  3 +++
 .../java/com/wireguard/android/QuickTileService.kt     | 10 +++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/ui/src/main/AndroidManifest.xml b/ui/src/main/AndroidManifest.xml
index 72617f3b..754992d5 100644
--- a/ui/src/main/AndroidManifest.xml
+++ b/ui/src/main/AndroidManifest.xml
@@ -7,6 +7,9 @@
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
     <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
+    <uses-permission
+        android:name="android.permission.SYSTEM_ALERT_WINDOW"
+        android:minSdkVersion="34" />
     <uses-permission
         android:name="android.permission.WRITE_EXTERNAL_STORAGE"
         android:maxSdkVersion="28"
diff --git a/ui/src/main/java/com/wireguard/android/QuickTileService.kt b/ui/src/main/java/com/wireguard/android/QuickTileService.kt
index f74c8bdf..9be2cc2b 100644
--- a/ui/src/main/java/com/wireguard/android/QuickTileService.kt
+++ b/ui/src/main/java/com/wireguard/android/QuickTileService.kt
@@ -9,8 +9,10 @@ import android.content.Intent
 import android.graphics.Bitmap
 import android.graphics.Canvas
 import android.graphics.drawable.Icon
+import android.net.Uri
 import android.os.Build
 import android.os.IBinder
+import android.provider.Settings
 import android.service.quicksettings.Tile
 import android.service.quicksettings.TileService
 import android.util.Log
@@ -55,7 +57,7 @@ class QuickTileService : TileService() {
                 val intent = Intent(this, MainActivity::class.java)
                 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
-                    startActivityAndCollapse(PendingIntent.getActivity(this, 0, intent,  PendingIntent.FLAG_IMMUTABLE))
+                    startActivityAndCollapse(PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_IMMUTABLE))
                 } else {
                     @Suppress("DEPRECATION")
                     startActivityAndCollapse(intent)
@@ -68,6 +70,12 @@ class QuickTileService : TileService() {
                             tunnel.setStateAsync(Tunnel.State.TOGGLE)
                             updateTile()
                         } catch (_: Throwable) {
+                            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE && !Settings.canDrawOverlays(this@QuickTileService)) {
+                                val permissionIntent = Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:$packageName"))
+                                permissionIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+                                startActivityAndCollapse(PendingIntent.getActivity(this@QuickTileService, 0, permissionIntent, PendingIntent.FLAG_IMMUTABLE))
+                                return@launch
+                            }
                             val toggleIntent = Intent(this@QuickTileService, TunnelToggleActivity::class.java)
                             toggleIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
                             startActivity(toggleIntent)