2 files changed, 34 insertions, 0 deletions
diff --git a/src/gui/windows/inventorywindow.cpp b/src/gui/windows/inventorywindow.cpp
index c1fea4158..ea3cc5ad3 100644
--- a/src/gui/windows/inventorywindow.cpp
+++ b/src/gui/windows/inventorywindow.cpp
@@ -54,6 +54,7 @@
 #include "gui/widgets/scrollarea.h"
 #include "gui/widgets/tabstrip.h"
 #include "gui/widgets/textfield.h"
+#include "gui/widgets/windowcontainer.h"
 
 #include "net/inventoryhandler.h"
 
@@ -746,6 +747,33 @@ bool InventoryWindow::isAnyInputFocused()
     return false;
 }
 
+InventoryWindow *InventoryWindow::getFirstVisible()
+{
+    std::set<Widget*> list;
+    FOR_EACH (WindowList::const_iterator, it, invInstances)
+    {
+        if ((*it) && (*it)->isWindowVisible())
+            list.insert(*it);
+    }
+    InventoryWindow *const window = dynamic_cast<InventoryWindow*>(
+        windowContainer->findFirstWidget(list));
+    return window;
+}
+
+void InventoryWindow::nextTab()
+{
+    InventoryWindow *const window = getFirstVisible();
+    if (window)
+        window->mFilter->nextTab();
+}
+
+void InventoryWindow::prevTab()
+{
+    InventoryWindow *const window = getFirstVisible();
+    if (window)
+        window->mFilter->prevTab();
+}
+
 void InventoryWindow::widgetResized(const Event &event)
 {
     Window::widgetResized(event);
diff --git a/src/gui/windows/inventorywindow.h b/src/gui/windows/inventorywindow.h
index 98cac78a6..f2952c2f5 100644
--- a/src/gui/windows/inventorywindow.h
+++ b/src/gui/windows/inventorywindow.h
@@ -156,6 +156,12 @@ class InventoryWindow final : public Window,
 
         static bool isAnyInputFocused();
 
+        static InventoryWindow *getFirstVisible();
+
+        static void nextTab();
+
+        static void prevTab();
+
     private:
         /**
          * Updates the weight bar.