Fix filtering users in the member list

src/models/userfiltermodel.cpp

@@ -8,7 +8,7 @@
 bool UserFilterModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
 {
     Q_UNUSED(sourceParent);
-    if (m_filterText.length() < 1) {
+    if (!m_allowEmpty && m_filterText.length() < 1) {
         return false;
     }
     return sourceModel()->data(sourceModel()->index(sourceRow, 0), UserListModel::DisplayNameRole).toString().contains(m_filterText, Qt::CaseInsensitive)
@@ -27,4 +27,15 @@ void UserFilterModel::setFilterText(const QString &filterText)
     invalidateFilter();
 }
 
+bool UserFilterModel::allowEmpty() const
+{
+    return m_allowEmpty;
+}
+
+void UserFilterModel::setAllowEmpty(bool allowEmpty)
+{
+    m_allowEmpty = allowEmpty;
+    Q_EMIT allowEmptyChanged();
+}
+
 #include "moc_userfiltermodel.cpp"

src/models/userfiltermodel.h

@@ -24,6 +24,7 @@ class UserFilterModel : public QSortFilterProxyModel
      * The text is either a desired display name or matrix id.
      */
     Q_PROPERTY(QString filterText READ filterText WRITE setFilterText NOTIFY filterTextChanged)
+    Q_PROPERTY(bool allowEmpty READ allowEmpty WRITE setAllowEmpty NOTIFY allowEmptyChanged)
 
 public:
     /**
@@ -36,9 +37,14 @@ public:
     QString filterText() const;
     void setFilterText(const QString &filterText);
 
+    bool allowEmpty() const;
+    void setAllowEmpty(bool allowEmpty);
+
 Q_SIGNALS:
     void filterTextChanged();
+    void allowEmptyChanged();
 
 private:
     QString m_filterText;
+    bool m_allowEmpty = false;
 };

src/qml/RoomInformation.qml

@@ -1,6 +1,8 @@
 // SPDX-FileCopyrightText: 2023 James Graham <james.h.graham@protonmail.com>
 // SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
 
+pragma ComponentBehavior: Bound
+
 import QtQuick
 import QtQuick.Controls as QQC2
 import QtQuick.Layouts
@@ -188,11 +190,17 @@ QQC2.ScrollView {
 
                 focusSequence: "Ctrl+Shift+F"
 
-                onAccepted: sortedMessageEventModel.filterString = text
+                onAccepted: userFilterModel.filterText = text
             }
         }
 
-        model: root.room.isDirectChat() ? 0 : RoomManager.userListModel
+        model: root.room.isDirectChat() ? 0 : userFilterModel
+
+        UserFilterModel {
+            id: userFilterModel
+            sourceModel: RoomManager.userListModel
+            allowEmpty: true
+        }
 
         clip: true
         focus: true