-#endif
-}
-
-// ----------------------------------------------------------------------------
-// Keyboard handling - this is the place where the TAB traversal logic is
-// implemented. As this code is common to all ports, this ensures consistent
-// behaviour even if we don't specify how exactly the wxNavigationKeyEvent are
-// generated and this is done in platform specific code which also ensures that
-// we can follow the given platform standards.
-// ----------------------------------------------------------------------------
-
-void wxPanel::OnNavigationKey( wxNavigationKeyEvent& event )
-{
- // the event is propagated downwards if the event emitter was our parent
- bool goingDown = event.GetEventObject() == GetParent();
-
- const wxWindowList& children = GetChildren();
-
- // there is not much to do if we don't have children and we're not
- // interested in "notebook page change" events here
- if ( !children.GetCount() || event.IsWindowChange() )
- {
- // let the parent process it unless it already comes from our parent
- // of we don't have any
- wxWindow *parent = GetParent();
- if ( goingDown ||
- !parent || !parent->GetEventHandler()->ProcessEvent(event) )
- {
- event.Skip();
- }
-
- return;
- }
-
- // where are we going?
- bool forward = event.GetDirection();
-
- // the node of the children list from which we should start looking for the
- // next acceptable child
- wxWindowList::Node *node, *start_node;
-
- // we should start from the first/last control and not from the one which
- // had focus the last time if we're propagating the event downwards because
- // for our parent we look like a single control
- if ( goingDown )
- {
- // just to be sure it's not used (normally this is not necessary, but
- // doesn't hurt neither)
- m_winLastFocused = (wxWindow *)NULL;
-
- // start from first or last depending on where we're going
- node = forward ? children.GetFirst() : children.GetLast();
-
- // we want to cycle over all nodes
- start_node = (wxWindowList::Node *)NULL;
- }
- else
- {
- // try to find the child which has the focus currently
-
- // the event emitter might have done this for us
- wxWindow *winFocus = event.GetCurrentFocus();
-
- // but if not, we might know where the focus was ourselves
- if (!winFocus)
- winFocus = m_winLastFocused;
-
- // if still no luck, do it the hard way
- if (!winFocus)
- winFocus = wxWindow::FindFocus();
-
- if ( winFocus )
- {
- // ok, we found the focus - now is it our child?
- start_node = children.Find( winFocus );
- }
- else
- {
- start_node = (wxWindowList::Node *)NULL;
- }
-
- if ( !start_node && m_winLastFocused )
- {
- // window which has focus isn't our child, fall back to the one
- // which had the focus the last time
- start_node = children.Find( m_winLastFocused );
- }
-
- // if we still didn't find anything, we should start with the first one
- if ( !start_node )
- {
- start_node = children.GetFirst();
- }
-
- // and the first child which we can try setting focus to is the next or
- // the previous one
- node = forward ? start_node->GetNext() : start_node->GetPrevious();
- }
-
- // we want to cycle over all elements passing by NULL
- while ( node != start_node )
- {
- // Have we come to the last or first item on the panel?
- if ( !node )
- {
- if ( !goingDown )
- {
- // Check if our (may be grand) parent is another panel: if this
- // is the case, they will know what to do with this navigation
- // key and so give them the chance to process it instead of
- // looping inside this panel (normally, the focus will go to
- // the next/previous item after this panel in the parent
- // panel).
- wxWindow *focussed_child_of_parent = this;
- for ( wxWindow *parent = GetParent();
- parent;
- parent = parent->GetParent() )
- {
- // we don't want to tab into a different dialog or frame
- if ( focussed_child_of_parent->IsTopLevel() )
- break;
-
- event.SetCurrentFocus( focussed_child_of_parent );
- if (parent->GetEventHandler()->ProcessEvent( event ))
- return;
-
- focussed_child_of_parent = parent;
- }
- }
- //else: as the focus came from our parent, we definitely don't want
- // to send it back to it!
-
- // no, we are not inside another panel so process this ourself
- node = forward ? children.GetFirst() : children.GetLast();
-
- continue;
- }
-
- wxWindow *child = node->GetData();
-
- if ( child->AcceptsFocusFromKeyboard() )
- {
- m_winLastFocused = child; // should be redundant, but it is not
-
- // if we're setting the focus to a child panel we should prevent it
- // from giving it to the child which had the focus the last time
- // and instead give it to the first/last child depending from which
- // direction we're coming
- wxPanel *subpanel = wxDynamicCast(child, wxPanel);
- if ( subpanel )
- {
- // trick the panel into thinking that it got the navigation
- // event - instead of duplicating all the code here
- //
- // make sure that we do trick it by setting all the parameters
- // correctly (consistently with the code in this very function
- // above) and that it starts from the very beginning/end by
- // using SetLastFocus(NULL)
- subpanel->SetLastFocus((wxWindow *)NULL);
- }
-
- event.SetEventObject(this);
- if ( !child->GetEventHandler()->ProcessEvent(event) )
- {
- // everything is simple: just give focus to it
- child->SetFocus();
- }
- //else: the child manages its focus itself
-
- event.Skip( FALSE );
- return;
- }
-
- node = forward ? node->GetNext() : node->GetPrevious();
- }
-
- // we cycled through all of our children and none of them wanted to accept
- // focus
projects / wxWidgets.git / blobdiff