KDirOperator: add support for history navigation mouse buttons

Signed-off-by: Mavridis Philippe <mavridisf@gmail.com>
(cherry picked from commit 4911fcf841)

tdeio/tdefile/tdediroperator.cpp

@@ -145,6 +145,8 @@ KDirOperator::KDirOperator(const KURL& _url,
     setupMenu();
 
     setFocusPolicy(TQWidget::WheelFocus);
+
+    installEventFilter(this);
 }
 
 KDirOperator::~KDirOperator()
@@ -1046,6 +1048,11 @@ void KDirOperator::connectView(KFileView *view)
     }
 
     m_fileView = view;
+    m_fileView->widget()->installEventFilter(this);
+    if (m_fileView->widget()->inherits("TQScrollView"))
+    {
+        (static_cast<TQScrollView *>(m_fileView->widget()))->viewport()->installEventFilter(this);
+    }
     m_fileView->setDropOptions(d->dropOptions);
     viewActionCollection = 0L;
     KFileViewSignaler *sig = view->signaler();
@@ -1734,6 +1741,24 @@ TQString KDirOperator::viewConfigGroup() const
     return d->configGroup;
 }
 
+bool KDirOperator::eventFilter(TQObject *obj, TQEvent *ev)
+{
+    if (ev->type() == TQEvent::MouseButtonRelease)
+    {
+        TQMouseEvent *mouseEv = static_cast<TQMouseEvent *>(ev);
+        switch (mouseEv->button())
+        {
+            case TQMouseEvent::HistoryBackButton:
+                back();
+                return true;
+            case TQMouseEvent::HistoryForwardButton:
+                forward();
+                return true;
+        }
+    }
+    return false;
+}
+
 void KDirOperator::virtual_hook( int, void* )
 { /*BASE::virtual_hook( id, data );*/ }
 

tdeio/tdefile/tdediroperator.h

@@ -936,6 +936,9 @@ private slots:
 
     void insertViewDependentActions();
 
+public:
+    bool eventFilter(TQObject *obj, TQEvent *ev);
+
 private:
     static bool isReadable( const KURL& url );