1 files changed, 70 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/ui/adapter/KnownHostsAdapter.java b/src/main/java/eu/siacs/conversations/ui/adapter/KnownHostsAdapter.java
new file mode 100644
index 00000000..39bfc082
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/ui/adapter/KnownHostsAdapter.java
@@ -0,0 +1,70 @@
+package eu.siacs.conversations.ui.adapter;
+
+import android.content.Context;
+import android.widget.ArrayAdapter;
+import android.widget.Filter;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+
+public class KnownHostsAdapter extends ArrayAdapter<String> {
+	private ArrayList<String> domains;
+	private Filter domainFilter = new Filter() {
+
+		@Override
+		protected FilterResults performFiltering(CharSequence constraint) {
+			if (constraint != null) {
+				ArrayList<String> suggestions = new ArrayList<>();
+				final String[] split = constraint.toString().split("@");
+				if (split.length == 1) {
+					for (String domain : domains) {
+						suggestions.add(split[0].toLowerCase(Locale
+								.getDefault()) + "@" + domain);
+					}
+				} else if (split.length == 2) {
+					for (String domain : domains) {
+						if (domain.contentEquals(split[1])) {
+							suggestions.clear();
+							break;
+						} else if (domain.contains(split[1])) {
+							suggestions.add(split[0].toLowerCase(Locale
+									.getDefault()) + "@" + domain);
+						}
+					}
+				} else {
+					return new FilterResults();
+				}
+				FilterResults filterResults = new FilterResults();
+				filterResults.values = suggestions;
+				filterResults.count = suggestions.size();
+				return filterResults;
+			} else {
+				return new FilterResults();
+			}
+		}
+
+		@Override
+		protected void publishResults(CharSequence constraint,
+				FilterResults results) {
+			ArrayList filteredList = (ArrayList) results.values;
+			if (results != null && results.count > 0) {
+				clear();
+				for (Object c : filteredList) {
+					add((String) c);
+				}
+				notifyDataSetChanged();
+			}
+		}
+	};
+
+	public KnownHostsAdapter(Context context, int viewResourceId, List<String> mKnownHosts) {
+		super(context, viewResourceId, new ArrayList<String>());
+		domains = new ArrayList<>(mKnownHosts);
+	}
+
+	@Override
+	public Filter getFilter() {
+		return domainFilter;
+	}
+}