qt: Use PeerTableSortProxy for sorting peer table

Author: hebasto

src/qt/clientmodel.cpp

@@ -8,6 +8,7 @@
 #include <qt/guiconstants.h>
 #include <qt/guiutil.h>
 #include <qt/peertablemodel.h>
+#include <qt/peertablesortproxy.h>
 
 #include <clientversion.h>
 #include <interfaces/handler.h>
@@ -38,7 +39,11 @@ ClientModel::ClientModel(interfaces::Node& node, OptionsModel *_optionsModel, QO
 {
     cachedBestHeaderHeight = -1;
     cachedBestHeaderTime = -1;
+
     peerTableModel = new PeerTableModel(m_node, this);
+    m_peer_table_sort_proxy = new PeerTableSortProxy(this);
+    m_peer_table_sort_proxy->setSourceModel(peerTableModel);
+
     banTableModel = new BanTableModel(m_node, this);
 
     QTimer* timer = new QTimer;
@@ -184,6 +189,11 @@ PeerTableModel *ClientModel::getPeerTableModel()
     return peerTableModel;
 }
 
+PeerTableSortProxy* ClientModel::peerTableSortProxy()
+{
+    return m_peer_table_sort_proxy;
+}
+
 BanTableModel *ClientModel::getBanTableModel()
 {
     return banTableModel;

src/qt/clientmodel.h

@@ -17,6 +17,7 @@ class BanTableModel;
 class CBlockIndex;
 class OptionsModel;
 class PeerTableModel;
+class PeerTableSortProxy;
 enum class SynchronizationState;
 
 namespace interfaces {
@@ -54,6 +55,7 @@ class ClientModel : public QObject
     interfaces::Node& node() const { return m_node; }
     OptionsModel *getOptionsModel();
     PeerTableModel *getPeerTableModel();
+    PeerTableSortProxy* peerTableSortProxy();
     BanTableModel *getBanTableModel();
 
     //! Return number of connections, default is in- and outbound (total)
@@ -96,6 +98,7 @@ class ClientModel : public QObject
     std::unique_ptr<interfaces::Handler> m_handler_notify_header_tip;
     OptionsModel *optionsModel;
     PeerTableModel *peerTableModel;
+    PeerTableSortProxy* m_peer_table_sort_proxy{nullptr};
     BanTableModel *banTableModel;
 
     //! A thread to interact with m_node asynchronously

src/qt/peertablemodel.cpp

@@ -194,10 +194,7 @@ QVariant PeerTableModel::data(const QModelIndex &index, int role) const
         } // no default case, so the compiler can warn about missing cases
         assert(false);
     } else if (role == StatsRole) {
-        switch (index.column()) {
-        case NetNodeId: return QVariant::fromValue(rec);
-        default: return QVariant();
-        }
+        return QVariant::fromValue(rec);
     }
 
     return QVariant();

src/qt/rpcconsole.cpp

@@ -9,13 +9,14 @@
 #include <qt/rpcconsole.h>
 #include <qt/forms/ui_debugwindow.h>
 
+#include <chainparams.h>
+#include <interfaces/node.h>
+#include <netbase.h>
 #include <qt/bantablemodel.h>
 #include <qt/clientmodel.h>
+#include <qt/peertablesortproxy.h>
 #include <qt/platformstyle.h>
 #include <qt/walletmodel.h>
-#include <chainparams.h>
-#include <interfaces/node.h>
-#include <netbase.h>
 #include <rpc/client.h>
 #include <rpc/server.h>
 #include <util/strencodings.h>
@@ -606,7 +607,7 @@ void RPCConsole::setClientModel(ClientModel *model, int bestblock_height, int64_
         connect(model, &ClientModel::mempoolSizeChanged, this, &RPCConsole::setMempoolSize);
 
         // set up peer table
-        ui->peerWidget->setModel(model->getPeerTableModel());
+        ui->peerWidget->setModel(model->peerTableSortProxy());
         ui->peerWidget->verticalHeader()->hide();
         ui->peerWidget->setEditTriggers(QAbstractItemView::NoEditTriggers);
         ui->peerWidget->setSelectionBehavior(QAbstractItemView::SelectRows);
@@ -643,10 +644,7 @@ void RPCConsole::setClientModel(ClientModel *model, int bestblock_height, int64_
 
         // peer table signal handling - update peer details when selecting new node
         connect(ui->peerWidget->selectionModel(), &QItemSelectionModel::selectionChanged, this, &RPCConsole::updateDetailWidget);
-        // peer table signal handling - update peer details when new nodes are added to the model
-        connect(model->getPeerTableModel(), &PeerTableModel::layoutChanged, this, &RPCConsole::peerLayoutChanged);
-        // peer table signal handling - cache selected node ids
-        connect(model->getPeerTableModel(), &PeerTableModel::layoutAboutToBeChanged, this, &RPCConsole::peerLayoutAboutToChange);
+        connect(model->getPeerTableModel(), &PeerTableModel::layoutChanged, this, &RPCConsole::updateDetailWidget);
 
         // set up ban table
         ui->banlistWidget->setModel(model->getBanTableModel());
@@ -1037,67 +1035,6 @@ void RPCConsole::updateTrafficStats(quint64 totalBytesIn, quint64 totalBytesOut)
     ui->lblBytesOut->setText(GUIUtil::formatBytes(totalBytesOut));
 }
 
-void RPCConsole::peerLayoutAboutToChange()
-{
-    cachedNodeids.clear();
-    for (const QModelIndex& peer : GUIUtil::getEntryData(ui->peerWidget, PeerTableModel::NetNodeId)) {
-        const auto stats = peer.data(PeerTableModel::StatsRole).value<CNodeCombinedStats*>();
-        cachedNodeids.append(stats->nodeStats.nodeid);
-    }
-}
-
-void RPCConsole::peerLayoutChanged()
-{
-    if (!clientModel || !clientModel->getPeerTableModel())
-        return;
-
-    bool fUnselect = false;
-    bool fReselect = false;
-
-    if (cachedNodeids.empty()) // no node selected yet
-        return;
-
-    // find the currently selected row
-    int selectedRow = -1;
-    QModelIndexList selectedModelIndex = ui->peerWidget->selectionModel()->selectedIndexes();
-    if (!selectedModelIndex.isEmpty()) {
-        selectedRow = selectedModelIndex.first().row();
-    }
-
-    // check if our detail node has a row in the table (it may not necessarily
-    // be at selectedRow since its position can change after a layout change)
-    int detailNodeRow = clientModel->getPeerTableModel()->getRowByNodeId(cachedNodeids.first());
-
-    if (detailNodeRow < 0)
-    {
-        // detail node disappeared from table (node disconnected)
-        fUnselect = true;
-    }
-    else
-    {
-        if (detailNodeRow != selectedRow)
-        {
-            // detail node moved position
-            fUnselect = true;
-            fReselect = true;
-        }
-    }
-
-    if (fUnselect && selectedRow >= 0) {
-        clearSelectedNode();
-    }
-
-    if (fReselect)
-    {
-        for(int i = 0; i < cachedNodeids.size(); i++)
-        {
-            ui->peerWidget->selectRow(clientModel->getPeerTableModel()->getRowByNodeId(cachedNodeids.at(i)));
-        }
-    }
-
-    updateDetailWidget();
-}
-
 void RPCConsole::updateDetailWidget()
 {
     const QList<QModelIndex> selected_peers = GUIUtil::getEntryData(ui->peerWidget, PeerTableModel::NetNodeId);

src/qt/rpcconsole.h

@@ -118,10 +118,6 @@ public Q_SLOTS:
     void browseHistory(int offset);
     /** Scroll console view to end */
     void scrollToEnd();
-    /** Handle selection caching before update */
-    void peerLayoutAboutToChange();
-    /** Handle updated peer information */
-    void peerLayoutChanged();
     /** Disconnect a selected node on the Peers tab */
     void disconnectSelectedNode();
     /** Ban a selected node on the Peers tab */