New tab to manage the drag out of the tabbar

src/CMakeLists.txt

@@ -55,6 +55,7 @@ set(konsoleprivate_SRCS ${sessionadaptors_SRCS}
                         CopyInputDialog.cpp
                         EditProfileDialog.cpp
                         Emulation.cpp
+                        DetachableTabBar.cpp
                         Filter.cpp
                         History.cpp
                         HistorySizeDialog.cpp

src/DetachableTabBar.cpp

@@ -0,0 +1,17 @@
+#include "DetachableTabBar.h"
+#include <QMouseEvent>
+
+DetachableTabBar::DetachableTabBar(QWidget *parent) : QTabBar(parent){}
+
+void DetachableTabBar::mouseMoveEvent(QMouseEvent *event)
+{
+    QTabBar::mouseMoveEvent(event);
+}
+
+void DetachableTabBar::mouseReleaseEvent(QMouseEvent *event)
+{
+    QTabBar::mouseReleaseEvent(event);
+    if (!contentsRect().contains(event->pos())) {
+        emit detachTab(currentIndex());
+    }
+}

src/DetachableTabBar.h

@@ -0,0 +1,17 @@
+#ifndef DETACHABLETABBAR_H
+#define DETACHABLETABBAR_H
+
+#include <QTabBar>
+
+class DetachableTabBar : public QTabBar {
+    Q_OBJECT
+public:
+    DetachableTabBar(QWidget *parent = nullptr);
+Q_SIGNALS:
+    void detachTab(int idx);
+protected:
+    void mouseMoveEvent(QMouseEvent*event) override;
+    void mouseReleaseEvent(QMouseEvent *event) override;
+};
+
+#endif

src/ViewContainer.cpp

@@ -28,6 +28,7 @@
 #include <QMenu>
 #include <QFile>
 #include <QOperatingSystemVersion>
+#include <QMouseEvent>
 
 // KDE
 #include <KColorScheme>
@@ -42,16 +43,20 @@
 #include "ViewManager.h"
 #include "KonsoleSettings.h"
 #include "SessionController.h"
+#include "DetachableTabBar.h"
 
 // TODO Perhaps move everything which is Konsole-specific into different files
 
 using namespace Konsole;
 
+
 TabbedViewContainer::TabbedViewContainer(ViewManager *connectedViewManager, QWidget *parent) :
     QTabWidget(parent),
     _connectedViewManager(connectedViewManager),
     _newTabButton(new QToolButton())
 {
+    auto tabBarWidget = new DetachableTabBar();
+    setTabBar(tabBarWidget);
     setDocumentMode(true);
     setMovable(true);
 
@@ -66,11 +71,13 @@ TabbedViewContainer::TabbedViewContainer(ViewManager *connectedViewManager, QWid
 
     connect(tabBar(), &QTabBar::tabCloseRequested,
             this, &TabbedViewContainer::closeTerminalTab);
-
     connect(tabBar(), &QTabBar::tabBarDoubleClicked, this,
             &Konsole::TabbedViewContainer::tabDoubleClicked);
     connect(tabBar(), &QTabBar::customContextMenuRequested, this,
             &Konsole::TabbedViewContainer::openTabContextMenu);
+    connect(tabBarWidget, &DetachableTabBar::detachTab, this, [this](int idx) {
+        qDebug() << "Trying to detach this";
+    });
 
     connect(this, &TabbedViewContainer::currentChanged, this, [this](int index) {
         if (index != -1) {

src/ViewContainer.h

@@ -28,6 +28,7 @@
 #include <QHash>
 #include <QList>
 #include <QTabWidget>
+#include <QTabBar>
 
 // Konsole
 #include "Profile.h"