From a2b7ce74b28bf7d418e426f14642b7550af013e4 Mon Sep 17 00:00:00 2001
From: Alexander Schlarb <alexander-kde@ninetailed.ninja>
Date: Sat, 8 Jul 2017 12:24:36 +0200
Subject: [PATCH] Support Forward and Backward mouse buttons in presentation
 mode

REVIEW: 130172
---
 ui/presentationwidget.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/ui/presentationwidget.cpp b/ui/presentationwidget.cpp
index 8035d38f9..c20ffdd3f 100644
--- a/ui/presentationwidget.cpp
+++ b/ui/presentationwidget.cpp
@@ -702,8 +702,14 @@ void PresentationWidget::mousePressEvent( QMouseEvent * e )
 
         m_goToNextPageOnRelease = true;
     }
-    // pressing right button
-    else if ( e->button() == Qt::RightButton )
+    // pressing the "move forward" mouse button: unlike the left button this
+    // always means "show next page", so we unconditionally delegate to that
+    // action on mouse button press
+    else if ( e->button() == Qt::ForwardButton ) {
+        slotNextPage();
+    }
+    // pressing right or backward button
+    else if ( e->button() == Qt::RightButton || e->button() == Qt::BackButton )
         slotPrevPage();
 }