+#if wxUSE_CLIPBOARD
+    if ( event.LeftDown() && IsSelectionEnabled() )
+    {
+        const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
+        if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
+        {
+            SelectLine(CalcUnscrolledPosition(event.GetPosition()));
+
+            (void) CopySelection();
+        }
+        else
+        {
+            m_makingSelection = true;
+
+            if ( m_selection )
+            {
+                wxDELETE(m_selection);
+                Refresh();
+            }
+            m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
+            m_tmpSelFromCell = NULL;
+
+            CaptureMouse();
+        }
+    }
+#endif // wxUSE_CLIPBOARD
+}
+
+void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
+{
+#if wxUSE_CLIPBOARD
+    if ( m_makingSelection )
+    {
+        ReleaseMouse();
+        m_makingSelection = false;
+
+        // did the user move the mouse far enough from starting point?
+        if ( CopySelection(Primary) )
+        {
+            // we don't want mouse up event that ended selecting to be
+            // handled as mouse click and e.g. follow hyperlink:
+            return;
+        }
+    }
+#endif // wxUSE_CLIPBOARD
+
+    SetFocus();
+    if ( m_Cell )
+    {
+        wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
+        wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
+
+        // check is needed because FindCellByPos returns terminal cell and
+        // containers may have empty borders -- in this case NULL will be
+        // returned
+        if ( cell )
+            OnCellClicked(cell, pos.x, pos.y, event);
+    }
+}
+
+
+
+void wxHtmlWindow::OnInternalIdle()
+{
+    wxWindow::OnInternalIdle();
+
+    if (m_tmpMouseMoved && (m_Cell != NULL))
+    {
+#ifdef DEBUG_HTML_SELECTION
+        Refresh();
+#endif
+        int xc, yc, x, y;
+        wxGetMousePosition(&xc, &yc);
+        ScreenToClient(&xc, &yc);
+        CalcUnscrolledPosition(xc, yc, &x, &y);
+
+        wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
+
+        // handle selection update:
+        if ( m_makingSelection )
+        {
+            if ( !m_tmpSelFromCell )
+                m_tmpSelFromCell = m_Cell->FindCellByPos(
+                                         m_tmpSelFromPos.x,m_tmpSelFromPos.y);
+
+            // NB: a trick - we adjust selFromPos to be upper left or bottom
+            //     right corner of the first cell of the selection depending
+            //     on whether the mouse is moving to the right or to the left.
+            //     This gives us more "natural" behaviour when selecting
+            //     a line (specifically, first cell of the next line is not
+            //     included if you drag selection from left to right over
+            //     entire line):
+            wxPoint dirFromPos;
+            if ( !m_tmpSelFromCell )
+            {
+                dirFromPos = m_tmpSelFromPos;
+            }
+            else
+            {
+                dirFromPos = m_tmpSelFromCell->GetAbsPos();
+                if ( x < m_tmpSelFromPos.x )
+                {
+                    dirFromPos.x += m_tmpSelFromCell->GetWidth();
+                    dirFromPos.y += m_tmpSelFromCell->GetHeight();
+                }
+            }
+            bool goingDown = dirFromPos.y < y ||
+                             (dirFromPos.y == y && dirFromPos.x < x);
+
+            // determine selection span:
+            if ( /*still*/ !m_tmpSelFromCell )
+            {
+                if (goingDown)
+                {
+                    m_tmpSelFromCell = m_Cell->FindCellByPos(
+                                         m_tmpSelFromPos.x,m_tmpSelFromPos.y,
+                                         wxHTML_FIND_NEAREST_AFTER);
+                    if (!m_tmpSelFromCell)
+                        m_tmpSelFromCell = m_Cell->GetFirstTerminal();
+                }
+                else
+                {
+                    m_tmpSelFromCell = m_Cell->FindCellByPos(
+                                         m_tmpSelFromPos.x,m_tmpSelFromPos.y,
+                                         wxHTML_FIND_NEAREST_BEFORE);
+                    if (!m_tmpSelFromCell)
+                        m_tmpSelFromCell = m_Cell->GetLastTerminal();
+                }
+            }