chatgui: propagate local nick changes to message authors via MsgAuthorNodeIdRole + reloadLocalNicks

tools/chatgui/src/accountlist.cpp

@@ -203,7 +203,10 @@ void AccountList::onMemberDoubleClicked(const QModelIndex& index) {
     if (!nodeId) return;
     QString name = m_model->data(index, Qt::DisplayRole).toString();
     MemberPropsDialog dlg(m_db, m_channelId, nodeId, name, this);
-    dlg.exec();
+    if (dlg.exec() == QDialog::Accepted) {
+        m_model->refresh();
+        emit memberRenamed();
+    }
 }
 
 void AccountList::onMemberContextMenu(const QPoint& pos) {
@@ -223,11 +226,17 @@ void AccountList::onMemberContextMenu(const QPoint& pos) {
 
     if (chosen == renameAction) {
         RenameDialog dlg(m_db, m_channelId, nodeId, name, this);
-        if (dlg.exec() == QDialog::Accepted) m_model->refresh();
+        if (dlg.exec() == QDialog::Accepted) {
+            m_model->refresh();
+            emit memberRenamed();
+        }
         return;
     }
     if (chosen != editAction) return;
 
     MemberPropsDialog dlg(m_db, m_channelId, nodeId, name, this);
-    dlg.exec();
+    if (dlg.exec() == QDialog::Accepted) {
+        m_model->refresh();
+        emit memberRenamed();
+    }
 }

tools/chatgui/src/accountlist.h

@@ -25,6 +25,9 @@ public:
     void setChannel(const QString& channelId);
     void refresh();
 
+signals:
+    void memberRenamed();
+
 private slots:
     void onMemberClicked(const QModelIndex& index);
     void onMemberDoubleClicked(const QModelIndex& index);

tools/chatgui/src/mainwindow.cpp

@@ -233,6 +233,8 @@ void MainWindow::setupConnects() {
     connect(m_channelList, &ChannelList::joinRequested,       this, &MainWindow::showJoinDialog);
     connect(m_channelList, &ChannelList::createGroupRequested, this, &MainWindow::onCreateGroupRequested);
     connect(m_channelList, &ChannelList::settingsRequested,   this, &MainWindow::showSettings);
+    connect(m_accountList, &AccountList::memberRenamed,
+            m_messageList, &MessageList::reloadLocalNicks);
     connect(m_messageList, &MessageList::readPositionChanged,
             this, [this](const QString& channelId, qint64 lastReadMsgId) {
                 Q_UNUSED(lastReadMsgId);

tools/chatgui/src/messagedelegate.h

@@ -14,6 +14,7 @@ enum MessageDataRole {
     MsgReactionsRole    = Qt::UserRole + 9,
     MsgIdRole           = Qt::UserRole + 10,
     MsgIsOutgoingRole   = Qt::UserRole + 11,
+    MsgAuthorNodeIdRole = Qt::UserRole + 20,
 };
 
 class MessageDelegate : public QStyledItemDelegate {

tools/chatgui/src/messagelist.cpp

@@ -229,6 +229,7 @@ void MessageList::loadChannel(const QString& channelId) {
         setMsg(item, author, QString::fromUtf8(m.data), time, avatar, false,
                false, QString(), QString(), reacts);
         item->setData(m.id, MsgIdRole);
+        item->setData(QVariant::fromValue(m.authorNodeId), MsgAuthorNodeIdRole);
         item->setData(m.isOutgoing ? 1 : 0, MsgIsOutgoingRole);
         m_model->appendRow(item);
     }
@@ -291,6 +292,7 @@ void MessageList::refresh() {
         setMsg(item, author, QString::fromUtf8(m.data), time, avatar, false,
                false, QString(), QString(), QVariantList{});
         item->setData(m.id, MsgIdRole);
+        item->setData(QVariant::fromValue(m.authorNodeId), MsgAuthorNodeIdRole);
         item->setData(m.isOutgoing ? 1 : 0, MsgIsOutgoingRole);
         m_model->appendRow(item);
         while (m_model->rowCount() > 100)
@@ -323,6 +325,7 @@ void MessageList::addMessage(const QString& channelId, quint64 authorNodeId,
     setMsg(item, author, QString::fromUtf8(content), time, avatar, false,
            false, QString(), QString(), QVariantList{});
     bool isSelf = m_db && (authorNodeId == m_db->myNodeId());
+    item->setData(QVariant::fromValue(authorNodeId), MsgAuthorNodeIdRole);
     item->setData(isSelf ? 1 : 0, MsgIsOutgoingRole);
     m_model->appendRow(item);
 
@@ -366,6 +369,20 @@ QString MessageList::authorName(quint64 nodeId) const {
     return m_db->getDisplayName(nodeId);
 }
 
+void MessageList::reloadLocalNicks() {
+    if (m_currentChannelId.isEmpty() || !m_db) return;
+    m_localNicks = m_db->getLocalNicknames(m_currentChannelId);
+    for (int r = 0; r < m_model->rowCount(); r++) {
+        auto* item = m_model->item(r);
+        if (!item) continue;
+        QVariant v = item->data(MsgAuthorNodeIdRole);
+        if (!v.isValid()) continue;
+        quint64 nid = v.value<quint64>();
+        item->setData(authorName(nid), MsgAuthorRole);
+    }
+    m_view->viewport()->update();
+}
+
 void MessageList::restoreScrollPosition(const QString& channelId) {
     if (!m_db || m_model->rowCount() == 0) {
         return;

tools/chatgui/src/messagelist.h

@@ -18,6 +18,7 @@ public:
 
     void loadChannel(const QString& channelId);
     void refresh();
+    void reloadLocalNicks();
     void saveChannelState();
     static void cleanupAnimations();
     void addMessage(const QString& channelId, quint64 authorNodeId,