// Author: Vadim Zeitlin
// Modified by:
// Created: 06.08.01
-// RCS-ID: $Id$
// Copyright: (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
// wxControlContainerBase
// ----------------------------------------------------------------------------
-void wxControlContainerBase::SetCanFocus(bool acceptsFocus)
+void wxControlContainerBase::UpdateParentCanFocus()
{
- if ( acceptsFocus == m_acceptsFocus )
- return;
+ // In the ports where it does something non trivial, the parent window
+ // should only be focusable if it doesn't have any focusable children
+ // (e.g. native focus handling in wxGTK totally breaks down otherwise).
+ m_winParent->SetCanFocus(m_acceptsFocusSelf && !m_acceptsFocusChildren);
+}
+
+bool wxControlContainerBase::UpdateCanFocusChildren()
+{
+ const bool acceptsFocusChildren = HasAnyFocusableChildren();
+ if ( acceptsFocusChildren != m_acceptsFocusChildren )
+ {
+ m_acceptsFocusChildren = acceptsFocusChildren;
- m_acceptsFocus = acceptsFocus;
+ UpdateParentCanFocus();
+ }
- m_winParent->SetCanFocus(m_acceptsFocus);
+ return m_acceptsFocusChildren;
}
bool wxControlContainerBase::HasAnyFocusableChildren() const
if ( !m_winParent->IsClientAreaChild(child) )
continue;
+ // Here we check whether the child can accept the focus at all, as we
+ // want to try focusing it later even if it can't accept it right now.
+ if ( child->AcceptsFocusRecursively() )
+ return true;
+ }
+
+ return false;
+}
+
+bool wxControlContainerBase::HasAnyChildrenAcceptingFocus() const
+{
+ const wxWindowList& children = m_winParent->GetChildren();
+ for ( wxWindowList::const_iterator i = children.begin(),
+ end = children.end();
+ i != end;
+ ++i )
+ {
+ const wxWindow * const child = *i;
+
+ if ( !m_winParent->IsClientAreaChild(child) )
+ continue;
+
+ // Here we check if the child accepts focus right now as we need to
+ // know if we can give the focus to it or not.
if ( child->CanAcceptFocus() )
return true;
}
return ret;
}
+bool wxControlContainerBase::AcceptsFocus() const
+{
+ return m_acceptsFocusSelf && m_winParent->CanBeFocused();
+}
+
bool wxControlContainerBase::SetFocusToChild()
{
return wxSetFocusToChild(m_winParent, &m_winLastFocused);
wxLogTrace(TRACE_FOCUS, wxT("No more last focus"));
}
}
-
- // propagate the last focus upwards so that our parent can set focus back
- // to us if it loses it now and regains later; do *not* do this if we are
- // a toplevel window (e.g. wxDialog) that has another frame as its parent
- if ( !m_winParent->IsTopLevel() )
- {
- wxWindow *parent = m_winParent->GetParent();
- if ( parent )
- {
- wxChildFocusEvent eventFocus(m_winParent);
- parent->GetEventHandler()->ProcessEvent(eventFocus);
- }
- }
}
// --------------------------------------------------------------------
// within the same group. Used by wxSetFocusToChild on wxMSW
// --------------------------------------------------------------------
-#if defined(__WXMSW__) && wxUSE_RADIOBTN
+#if wxUSE_RADIOBTN
wxRadioButton* wxGetPreviousButtonInGroup(wxRadioButton *btn)
{
// 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 = m_winParent;
+ wxWindow *focusedParent = m_winParent;
while ( parent )
{
- // we don't want to tab into a different dialog or frame
- if ( focussed_child_of_parent->IsTopLevel() )
+ // We don't want to tab into a different dialog or frame or
+ // even an MDI child frame, so test for this explicitly
+ // (and in particular don't just use IsTopLevel() which
+ // would return false in the latter case).
+ if ( focusedParent->IsTopNavigationDomain() )
break;
- event.SetCurrentFocus( focussed_child_of_parent );
+ event.SetCurrentFocus( focusedParent );
if ( parent->GetEventHandler()->ProcessEvent( event ) )
return;
- focussed_child_of_parent = parent;
+ focusedParent = parent;
parent = parent->GetParent();
}
// It might happen that the window got reparented
if ( (*childLastFocused)->GetParent() == win )
{
- // And it also could have become hidden in the meanwhile, in this
- // case focus its parent instead.
- while ( !(*childLastFocused)->IsShown() )
+ // And it also could have become hidden in the meanwhile
+ // We want to focus on the deepest widget visible
+ wxWindow *deepestVisibleWindow = NULL;
+
+ while ( *childLastFocused )
{
+ if ( (*childLastFocused)->IsShown() )
+ {
+ if ( !deepestVisibleWindow )
+ deepestVisibleWindow = *childLastFocused;
+ }
+ else
+ deepestVisibleWindow = NULL;
+
*childLastFocused = (*childLastFocused)->GetParent();
- if ( !*childLastFocused )
- break;
}
- if ( *childLastFocused )
+ if ( deepestVisibleWindow )
{
+ *childLastFocused = deepestVisibleWindow;
+
wxLogTrace(TRACE_FOCUS,
wxT("SetFocusToChild() => last child (0x%p)."),
(*childLastFocused)->GetHandle());