diff --git a/app/fullscreencontent.h b/app/fullscreencontent.h
--- a/app/fullscreencontent.h
+++ b/app/fullscreencontent.h
@@ -92,6 +92,7 @@
     void setFullScreenBarHeight(int value);
     void slotShowThumbnailsToggled(bool value);
     void slotViewModeActionToggled(bool value);
+    void adjustSize();
 
 private:
     KActionCollection* mActionCollection;
diff --git a/app/fullscreencontent.cpp b/app/fullscreencontent.cpp
--- a/app/fullscreencontent.cpp
+++ b/app/fullscreencontent.cpp
@@ -120,6 +120,8 @@
     layout->setMargin(0);
     layout->setSpacing(0);
 
+    EventWatcher::install(autoHideParentWidget, QEvent::Resize, this, SLOT(adjustSize()));
+
     // mContent
     mContent = new QWidget;
     mContent->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
@@ -349,6 +351,12 @@
     mAutoHideContainer->setActivated(true);
 }
 
+void FullScreenContent::adjustSize()
+{
+    if (mFullScreenMode && mViewPageVisible) {
+        mAutoHideContainer->adjustSize();
+    }
+}
 
 void FullScreenContent::createOptionsAction()
 {
diff --git a/lib/fullscreenbar.cpp b/lib/fullscreenbar.cpp
--- a/lib/fullscreenbar.cpp
+++ b/lib/fullscreenbar.cpp
@@ -147,8 +147,7 @@
     }
 
     if (layout()->expandingDirections() & Qt::Horizontal) {
-        int width = QApplication::desktop()->screenGeometry(window()).width();
-        sh.setWidth(width);
+        sh.setWidth(parentWidget()->width());
     }
     return sh;
 }