code simplification and fix for Autofill not being able to save credentials, closes https://github.com/PhilippC/keepass2android/issues/2269

src/Kp2aAutofillParser/AutofillParser.cs

@@ -134,10 +134,10 @@ namespace Kp2aAutofillParser
     /// </summary>
     public class FilledAutofillFieldCollection<FieldT> where FieldT:InputField
     {
-        public Dictionary<string, FilledAutofillField<FieldT>> HintMap { get; }
+        public Dictionary<string, FilledAutofillField> HintMap { get; }
         public string DatasetName { get; set; }
 
-        public FilledAutofillFieldCollection(Dictionary<string, FilledAutofillField<FieldT>> hintMap, string datasetName = "")
+        public FilledAutofillFieldCollection(Dictionary<string, FilledAutofillField> hintMap, string datasetName = "")
         {
             //recreate hint map making sure we compare case insensitive
             HintMap = BuildHintMap();
@@ -149,9 +149,9 @@ namespace Kp2aAutofillParser
         public FilledAutofillFieldCollection() : this(BuildHintMap())
         { }
 
-        private static Dictionary<string, FilledAutofillField<FieldT>> BuildHintMap()
+        private static Dictionary<string, FilledAutofillField> BuildHintMap()
         {
-            return new Dictionary<string, FilledAutofillField<FieldT>>(StringComparer.OrdinalIgnoreCase);
+            return new Dictionary<string, FilledAutofillField>(StringComparer.OrdinalIgnoreCase);
         }
 
         /// <summary>
@@ -159,7 +159,7 @@ namespace Kp2aAutofillParser
         /// </summary>
         /// <returns>The add.</returns>
         /// <param name="filledAutofillField">Filled autofill field.</param>
-        public void Add(FilledAutofillField<FieldT> filledAutofillField)
+        public void Add(FilledAutofillField filledAutofillField)
         {
             foreach (string hint in filledAutofillField.AutofillHints)
             {
@@ -572,7 +572,7 @@ namespace Kp2aAutofillParser
         }
     }
 
-    public class FilledAutofillField<FieldT> where FieldT : InputField
+    public class FilledAutofillField
     {
         private string[] _autofillHints;
         public string TextValue { get; set; }
@@ -611,13 +611,13 @@ namespace Kp2aAutofillParser
         public FilledAutofillField()
         { }
 
-        public FilledAutofillField(FieldT inputField)
+        public FilledAutofillField(InputField inputField) 
             : this(inputField, inputField.AutofillHints)
         {
 
         }
 
-        public FilledAutofillField(FieldT inputField, string[] hints)
+        public FilledAutofillField(InputField inputField, string[] hints)
         {
 
             string[] rawHints = AutofillHintsHelper.FilterForSupportedHints(hints);
@@ -665,6 +665,7 @@ namespace Kp2aAutofillParser
                 }
             }
             AutofillHints = AutofillHintsHelper.ConvertToCanonicalLowerCaseHints(hintList.ToArray()).ToArray();
+            inputField.FillFilledAutofillValue(this);
 
 
         }
@@ -679,7 +680,7 @@ namespace Kp2aAutofillParser
             if (this == obj) return true;
             if (obj == null || GetType() != obj.GetType()) return false;
 
-            FilledAutofillField<FieldT> that = (FilledAutofillField<FieldT>)obj;
+            FilledAutofillField that = (FilledAutofillField)obj;
 
             if (!TextValue?.Equals(that.TextValue) ?? that.TextValue != null)
                 return false;
@@ -717,6 +718,8 @@ namespace Kp2aAutofillParser
         public string HtmlInfoTag { get; set; }
         public string HtmlInfoTypeAttribute { get; set; }
 
+        public abstract void FillFilledAutofillValue(FilledAutofillField filledField);
+
     }
 
     /// <summary>

src/Kp2aAutofillParserTest/AutofillTest.cs

@@ -18,6 +18,9 @@ namespace Kp2aAutofillParserTest
         class TestInputField: InputField
         {
             public string[] ExpectedAssignedHints { get; set; }
+            public override void FillFilledAutofillValue(FilledAutofillField filledField)
+            {
+            }
         }
 
         [Fact]

src/keepass2android/services/AutofillBase/AutofillHelper.cs

@@ -142,7 +142,7 @@ namespace keepass2android.services.AutofillBase
             {
                 foreach (AutofillFieldMetadata autofillFieldMetadata in autofillFieldMetadataCollection.GetFieldsForHint(hint))
                 {
-                    FilledAutofillField<ViewNodeInputField> filledAutofillField;
+                    FilledAutofillField filledAutofillField;
                     if (!filledAutofillFieldCollection.HintMap.TryGetValue(hint, out filledAutofillField) || (filledAutofillField == null))
                     {
                         continue;

src/keepass2android/services/AutofillBase/StructureParser.cs

@@ -29,7 +29,7 @@ namespace keepass2android.services.AutofillBase
         [JsonIgnore]
         public AssistStructure.ViewNode ViewNode { get; set; }
 
-        public void FillFilledAutofillValue(FilledAutofillField<ViewNodeInputField> filledField)
+        public override void FillFilledAutofillValue(FilledAutofillField filledField)
         {
             AutofillValue autofillValue = ViewNode.AutofillValue;
             if (autofillValue != null)
@@ -159,8 +159,12 @@ namespace keepass2android.services.AutofillBase
 
         protected override AutofillTargetId Parse(bool forFill, bool isManualRequest, AutofillView<ViewNodeInputField> autofillView)
         {
+            if (autofillView == null)
+                Kp2aLog.Log("Received null autofill view!");
             var result = base.Parse(forFill, isManualRequest, autofillView);
 
+            Kp2aLog.Log("Parsing done");
+
             if (forFill)
             {
                 foreach (var p in FieldsMappedToHints)
@@ -168,8 +172,9 @@ namespace keepass2android.services.AutofillBase
             }
             else
             {
+                ClientFormData = new FilledAutofillFieldCollection<ViewNodeInputField>();
                 foreach (var p in FieldsMappedToHints)
-                    ClientFormData.Add(new FilledAutofillField<ViewNodeInputField>(p.Key, p.Value));
+                    ClientFormData.Add(new FilledAutofillField(p.Key, p.Value));
             }
             
 

src/keepass2android/services/Kp2aAutofill/ChooseForAutofillActivity.cs

@@ -61,8 +61,8 @@ namespace keepass2android.services.Kp2aAutofill
             foreach (string key in pwEntryOutput.OutputStrings.GetKeys())
             {
                 
-                FilledAutofillField<ViewNodeInputField> field =
-                    new FilledAutofillField<ViewNodeInputField>
+                FilledAutofillField field =
+                    new FilledAutofillField
                     {
                         AutofillHints = GetCanonicalHintsFromKp2aField(key).ToArray(),
                         TextValue = pwEntryOutput.OutputStrings.ReadSafe(key)
@@ -73,8 +73,8 @@ namespace keepass2android.services.Kp2aAutofill
             if (IsCreditCard(pwEntry, context) && pwEntry.Expires)
             {
                 DateTime expTime = pwEntry.ExpiryTime;
-                FilledAutofillField<ViewNodeInputField> field =
-                    new FilledAutofillField<ViewNodeInputField>
+                FilledAutofillField field =
+                    new FilledAutofillField
                     {
                         AutofillHints = new[] {View.AutofillHintCreditCardExpirationDate},
                         DateValue = (long) (1000 * TimeUtil.SerializeUnix(expTime))
@@ -82,7 +82,7 @@ namespace keepass2android.services.Kp2aAutofill
                 fieldCollection.Add(field);
 
                 field =
-                    new FilledAutofillField<ViewNodeInputField>
+                    new FilledAutofillField
                     {
                         AutofillHints = new[] {View.AutofillHintCreditCardExpirationDay},
                         TextValue = expTime.Day.ToString()
@@ -90,7 +90,7 @@ namespace keepass2android.services.Kp2aAutofill
                 fieldCollection.Add(field);
 
                 field =
-                    new FilledAutofillField<ViewNodeInputField>
+                    new FilledAutofillField
                     {
                         AutofillHints = new[] {View.AutofillHintCreditCardExpirationMonth},
                         TextValue = expTime.Month.ToString()
@@ -98,7 +98,7 @@ namespace keepass2android.services.Kp2aAutofill
                 fieldCollection.Add(field);
 
                 field =
-                    new FilledAutofillField<ViewNodeInputField>
+                    new FilledAutofillField
                     {
                         AutofillHints = new[] {View.AutofillHintCreditCardExpirationYear},
                         TextValue = expTime.Year.ToString()