Implement Ctrl+Tab (Move to next tab) and Ctrl+Shift+Tab (Move to previous tab)

src/widgets/chatwidgetinput.cpp

@@ -3,6 +3,7 @@
 #include "colorscheme.hpp"
 #include "completionmanager.hpp"
 #include "ircmanager.hpp"
+#include "notebook.hpp"
 #include "notebookpage.hpp"
 #include "settingsmanager.hpp"
 
@@ -128,6 +129,22 @@ ChatWidgetInput::ChatWidgetInput(ChatWidget *_chatWidget)
 
                 page->requestFocus(reqX, reqY);
             }
+        } else if (event->key() == Qt::Key_Tab) {
+            if (event->modifiers() == Qt::ControlModifier) {
+                NotebookPage *page = static_cast<NotebookPage *>(this->chatWidget->parentWidget());
+
+                Notebook *notebook = static_cast<Notebook *>(page->parentWidget());
+
+                notebook->nextTab();
+            }
+        } else if (event->key() == Qt::Key_Backtab) {
+            if (event->modifiers() == (Qt::ControlModifier | Qt::ShiftModifier)) {
+                NotebookPage *page = static_cast<NotebookPage *>(this->chatWidget->parentWidget());
+
+                Notebook *notebook = static_cast<Notebook *>(page->parentWidget());
+
+                notebook->previousTab();
+            }
         }
     });
 

src/widgets/notebook.cpp

@@ -134,6 +134,32 @@ void Notebook::rearrangePage(NotebookPage *page, int index)
     performLayout();
 }
 
+void Notebook::nextTab()
+{
+    if (this->pages.size() <= 1) {
+        return;
+    }
+
+    int index = (this->pages.indexOf(this->selectedPage) + 1) % this->pages.size();
+
+    this->select(this->pages[index]);
+}
+
+void Notebook::previousTab()
+{
+    if (this->pages.size() <= 1) {
+        return;
+    }
+
+    int index = (this->pages.indexOf(this->selectedPage) - 1);
+
+    if (index < 0) {
+        index += this->pages.size();
+    }
+
+    this->select(this->pages[index]);
+}
+
 void Notebook::performLayout(bool animated)
 {
     int x = 0, y = 0;

src/widgets/notebook.hpp

@@ -42,6 +42,9 @@ public:
     NotebookPage *tabAt(QPoint point, int &index);
     void rearrangePage(NotebookPage *page, int index);
 
+    void nextTab();
+    void previousTab();
+
 protected:
     void resizeEvent(QResizeEvent *);