Added quick search for attachments

app/src/main/java/eu/faircode/email/FragmentDialogSearch.java

@@ -59,6 +59,7 @@ public class FragmentDialogSearch extends FragmentDialogBase {
         View dview = LayoutInflater.from(getContext()).inflate(R.layout.dialog_search, null);
 
         final AutoCompleteTextView etQuery = dview.findViewById(R.id.etQuery);
+        final ImageButton ibAttachment = dview.findViewById(R.id.ibAttachment);
         final ImageButton ibEvent = dview.findViewById(R.id.ibInvite);
         final ImageButton ibUnseen = dview.findViewById(R.id.ibUnseen);
         final ImageButton ibFlagged = dview.findViewById(R.id.ibFlagged);
@@ -314,6 +315,9 @@ public class FragmentDialogSearch extends FragmentDialogBase {
 
                 BoundaryCallbackMessages.SearchCriteria criteria = new BoundaryCallbackMessages.SearchCriteria();
                 switch (v.getId()) {
+                    case R.id.ibAttachment:
+                        criteria.with_attachments = true;
+                        break;
                     case R.id.ibInvite:
                         criteria.with_attachments = true;
                         criteria.with_types = new String[]{"text/calendar"};
@@ -332,6 +336,7 @@ public class FragmentDialogSearch extends FragmentDialogBase {
             }
         };
 
+        ibAttachment.setOnClickListener(onClick);
         ibEvent.setOnClickListener(onClick);
         ibUnseen.setOnClickListener(onClick);
         ibFlagged.setOnClickListener(onClick);

app/src/main/res/layout/dialog_search.xml

@@ -18,6 +18,20 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent" />
 
+        <ImageButton
+            android:id="@+id/ibAttachment"
+            android:layout_width="36dp"
+            android:layout_height="36dp"
+            android:layout_marginEnd="12dp"
+            android:background="?android:attr/selectableItemBackgroundBorderless"
+            android:contentDescription="@string/title_search_flag_attachments"
+            android:padding="6dp"
+            android:scaleType="fitCenter"
+            android:tooltipText="@string/title_search_flag_attachments"
+            app:layout_constraintEnd_toStartOf="@+id/ibInvite"
+            app:layout_constraintTop_toBottomOf="@id/tvCaption"
+            app:srcCompat="@drawable/baseline_attachment_24" />
+
         <ImageButton
             android:id="@+id/ibInvite"
             android:layout_width="36dp"