From dfd39ebc955d5c484c3f1f10762c0363c38fcbad Mon Sep 17 00:00:00 2001
From: Kyle Spearrin <kyle.spearrin@gmail.com>
Date: Thu, 1 Feb 2018 21:20:28 -0500
Subject: [PATCH] check installed launchers to skip

---
 src/Android/AutofillService.cs | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

diff --git a/src/Android/AutofillService.cs b/src/Android/AutofillService.cs
index c0b6264a7..8205ce811 100644
--- a/src/Android/AutofillService.cs
+++ b/src/Android/AutofillService.cs
@@ -64,6 +64,7 @@ namespace Bit.Android
             new Browser("com.duckduckgo.mobile.android", "omnibarTextInput")
         }.ToDictionary(n => n.PackageName);
 
+        // Known packages to skip
         private static HashSet<string> FilteredPackageNames => new HashSet<string>
         {
             SystemUiPackage,
@@ -86,6 +87,9 @@ namespace Bit.Android
         private readonly IAppSettingsService _appSettings;
         private long _lastNotificationTime = 0;
         private string _lastNotificationUri = null;
+        private HashSet<string> _launcherPackageNames = null;
+        private DateTime? _lastLauncherSetBuilt = null;
+        private TimeSpan _rebuildLauncherSpan = TimeSpan.FromHours(1);
 
         public AutofillService()
         {
@@ -106,8 +110,7 @@ namespace Bit.Android
 
             try
             {
-                if(string.IsNullOrWhiteSpace(e?.PackageName) || FilteredPackageNames.Contains(e.PackageName) ||
-                    e.PackageName.Contains("launcher"))
+                if(SkipPackage(e?.PackageName))
                 {
                     return;
                 }
@@ -465,6 +468,28 @@ namespace Bit.Android
             return nodes;
         }
 
+        private bool SkipPackage(string eventPackageName)
+        {
+            if(string.IsNullOrWhiteSpace(eventPackageName) || FilteredPackageNames.Contains(eventPackageName)
+                || eventPackageName.Contains("launcher"))
+            {
+                return true;
+            }
+
+            if(_launcherPackageNames == null || _lastLauncherSetBuilt == null ||
+                (DateTime.Now - _lastLauncherSetBuilt.Value) > _rebuildLauncherSpan)
+            {
+                // refresh launcher list every now and then
+                _lastLauncherSetBuilt = DateTime.Now;
+                var intent = new Intent(Intent.ActionMain);
+                intent.AddCategory(Intent.CategoryHome);
+                var resolveInfo = PackageManager.QueryIntentActivities(intent, 0);
+                _launcherPackageNames = resolveInfo.Select(ri => ri.ActivityInfo.PackageName).ToHashSet();
+            }
+
+            return _launcherPackageNames.Contains(eventPackageName);
+        }
+
         public class Browser
         {
             public Browser(string packageName, string uriViewId)