Qt: Better handle retapping for traffic tables

Retapping can have some side-effects and was done in
an overflowing way. Reducing the number of times retapping
is required and done, and also giving control for taps
reload to TrafficTab

ui/qt/conversation_dialog.cpp

@@ -92,14 +92,12 @@ ConversationDialog::ConversationDialog(QWidget &parent, CaptureFile &cf, int cli
     TrafficTableDialog(parent, cf, filter, table_name_),
     tcp_graph_requested_(false)
 {
-    trafficTab()->setProtocolInfo(tr("Conversation"), &(recent.conversation_tabs), &createModel);
-    trafficTab()->setFirstTab(cli_proto_id);
+    trafficTab()->setProtocolInfo(tr("Conversation"), cli_proto_id, &(recent.conversation_tabs), &createModel);
     trafficTab()->setDelegate(CONV_COLUMN_START, &createDelegate);
     trafficTab()->setDelegate(CONV_COLUMN_DURATION, &createDelegate);
     connect(trafficTab(), &TrafficTab::filterAction, this, &ConversationDialog::filterAction);
     connect(trafficTab()->tabBar(), &QTabBar::currentChanged, this, &ConversationDialog::tabChanged);
     connect(trafficTab(), &TrafficTab::tabDataChanged, this, &ConversationDialog::tabChanged);
-    connect(absoluteTimeCheckBox(), &QCheckBox::toggled, trafficTab(), &TrafficTab::useAbsoluteTime);
 
     follow_bt_ = buttonBox()->addButton(tr("Follow Stream…"), QDialogButtonBox::ActionRole);
     follow_bt_->setToolTip(tr("Follow a TCP or UDP stream."));
@@ -122,13 +120,8 @@ ConversationDialog::ConversationDialog(QWidget &parent, CaptureFile &cf, int cli
     }
 
     updateWidgets();
-
-    cap_file_.delayedRetapPackets();
 }
 
-ConversationDialog::~ConversationDialog()
-{}
-
 void ConversationDialog::captureFileClosing()
 {
     trafficTab()->disableTap();

ui/qt/conversation_dialog.h

@@ -25,7 +25,6 @@ public:
      * @param filter Display filter to apply.
      */
     explicit ConversationDialog(QWidget &parent, CaptureFile &cf, int cli_proto_id = -1, const char *filter = NULL);
-    ~ConversationDialog();
 
 protected:
     void captureFileClosing();

ui/qt/endpoint_dialog.cpp

@@ -66,10 +66,8 @@ static ATapDataModel * createModel(int protoId, QString filter)
 EndpointDialog::EndpointDialog(QWidget &parent, CaptureFile &cf, int cli_proto_id, const char *filter) :
     TrafficTableDialog(parent, cf, filter, table_name_)
 {
-    trafficTab()->setProtocolInfo(tr("Endpoints"), &(recent.endpoint_tabs), &createModel);
-    trafficTab()->setFirstTab(cli_proto_id);
+    trafficTab()->setProtocolInfo(tr("Endpoints"), cli_proto_id, &(recent.endpoint_tabs), &createModel);
     connect(trafficTab(), &TrafficTab::filterAction, this, &EndpointDialog::filterAction);
-
     connect(trafficTab(), &TrafficTab::tabDataChanged, this, &EndpointDialog::tabChanged);
     connect(trafficTab(), &TrafficTab::currentChanged, this, &EndpointDialog::tabChanged);
 
@@ -93,12 +91,6 @@ EndpointDialog::EndpointDialog(QWidget &parent, CaptureFile &cf, int cli_proto_i
     }
 
     updateWidgets();
-
-    cap_file_.delayedRetapPackets();
-}
-
-EndpointDialog::~EndpointDialog()
-{
 }
 
 void EndpointDialog::captureFileClosing()

ui/qt/endpoint_dialog.h

@@ -28,7 +28,6 @@ public:
      * @param filter Display filter to apply.
      */
     explicit EndpointDialog(QWidget &parent, CaptureFile &cf, int cli_proto_id = -1, const char *filter = NULL);
-    ~EndpointDialog();
 
 signals:
 

ui/qt/models/atap_data_model.cpp

@@ -108,7 +108,9 @@ bool ATapDataModel::enableTap()
         _disableTap = true;
         return false;
     }
-    g_string_free(errorString, TRUE);
+
+    if (errorString)
+        g_string_free(errorString, TRUE);
 
     return true;
 }
@@ -274,7 +276,8 @@ void ATapDataModel::setFilter(QString filter)
         disableTap();
     }
 
-    g_string_free(errorString, TRUE);
+    if (errorString)
+        g_string_free(errorString, TRUE);
 }
 
 ATapDataModel::dataModelType ATapDataModel::modelType() const

ui/qt/traffic_table_dialog.cpp

@@ -63,6 +63,9 @@ TrafficTableDialog::TrafficTableDialog(QWidget &parent, CaptureFile &cf, const c
     connect(mainApp, SIGNAL(addressResolutionChanged()), this, SLOT(currentTabChanged()));
     connect(ui->trafficTab, SIGNAL(currentChanged(int)), this, SLOT(currentTabChanged()));
     connect(&cap_file_, SIGNAL(captureEvent(CaptureEvent)), this, SLOT(captureEvent(CaptureEvent)));
+
+    connect(ui->absoluteTimeCheckBox, &QCheckBox::toggled, trafficTab(), &TrafficTab::useAbsoluteTime);
+    connect(trafficTab(), &TrafficTab::retapRequired, &cap_file_, &CaptureFile::delayedRetapPackets);
 }
 
 TrafficTableDialog::~TrafficTableDialog()

ui/qt/widgets/traffic_tab.cpp

@@ -101,9 +101,10 @@ TrafficTab::~TrafficTab()
     }
 }
 
-void TrafficTab::setProtocolInfo(QString tableName, GList ** recentList, ATapModelCallback createModel)
+void TrafficTab::setProtocolInfo(QString tableName, int cliId, GList ** recentList, ATapModelCallback createModel)
 {
     _tableName = tableName;
+    _cliId = cliId;
     _recentList = recentList;
     if (createModel)
         _createModel = createModel;
@@ -120,6 +121,12 @@ void TrafficTab::setProtocolInfo(QString tableName, GList ** recentList, ATapMod
             _protocols << proto_get_id_by_filter_name(name.toStdString().c_str());
     }
 
+    // Bring the command-line specified type to the front.
+    if ((_cliId > 0) && (get_conversation_by_proto_id(_cliId))) {
+        _protocols.removeAll(_cliId);
+        _protocols.prepend(_cliId);
+    }
+
     QWidget * container = new QWidget(this);
     container->setFixedHeight(tabBar()->height());
     container->setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed));
@@ -164,19 +171,6 @@ void TrafficTab::toggleTab(bool checked)
     updateTabs();
 }
 
-void TrafficTab::setFirstTab(int cliId)
-{
-    _cliId = cliId;
-
-    // Bring the command-line specified type to the front.
-    if ((_cliId > 0) && (get_conversation_by_proto_id(_cliId))) {
-        _protocols.removeAll(_cliId);
-        _protocols.prepend(_cliId);
-    }
-
-    updateTabs();
-}
-
 void TrafficTab::setDelegate(int column, ATapCreateDelegate createDelegate)
 {
     if (! createDelegate || column < 0)
@@ -328,6 +322,8 @@ void TrafficTab::updateTabs()
         TabData tabData = qvariant_cast<TabData>(tabBar()->tabData(idx));
         _tabs.insert(tabData.protoId(), idx);
     }
+
+    emit retapRequired();
 }
 
 void TrafficTab::doCurrentIndexChange(const QModelIndex & cur, const QModelIndex &)

ui/qt/widgets/traffic_tab.h

@@ -96,19 +96,13 @@ public:
      * without having to removing the predefined object during setup of the UI.
      *
      * @param tableName The name for the table. Used for the protocol selection button
+     * @param cliId a protocol id for the first tab
      * @param recentList The list to store the selected protocols in
      * @param createModel A callback, which will create the correct model for the trees
      *
      * @see ATapModelCallback
      */
-    void setProtocolInfo(QString tableName, GList ** recentList, ATapModelCallback createModel);
-
-    /**
-     * @brief Ensure, that the given protocol id is the first tab set
-     *
-     * @param cliId a protocol id for the first tab
-     */
-    void setFirstTab(int cliId);
+    void setProtocolInfo(QString tableName, int cliId, GList ** recentList, ATapModelCallback createModel);
 
     /**
      * @brief Set the Delegate object for a specific column
@@ -226,6 +220,7 @@ public slots:
 signals:
     void filterAction(QString filter, FilterAction::Action action, FilterAction::ActionType type);
     void tabDataChanged(int index);
+    void retapRequired();
 
 private:
     QString _tableName;