bool CGUIWindow::OnMove(int fromControl, int moveAction)
{
const CGUIControl *control = GetFirstFocusableControl(fromControl);
if (!control) control = GetControl(fromControl);
if (!control)
{ // no current control??
CLog::Log(LOGERROR, "Unable to find control %i in window %u",
fromControl, GetID());
return false;
}
vector<int> moveHistory;
int nextControl = fromControl;
while (control)
{ // grab the next control direction
moveHistory.push_back(nextControl);
CGUIAction action;
if (!control->GetNavigationAction(moveAction, action))
return false;
action.ExecuteActions(nextControl, GetParentID());
nextControl = action.GetNavigation();
if (!nextControl) // 0 isn't valid control id
return false;
// check our history - if the nextControl is in it, we can't focus it
for (unsigned int i = 0; i < moveHistory.size(); i++)
{
if (nextControl == moveHistory[i])
return false; // no control to focus so do nothing
}
control = GetFirstFocusableControl(nextControl);
if (control)
break; // found a focusable control
control = GetControl(nextControl); // grab the next control and try again
}
if (!control)
return false; // no control to focus
// if we get here we have our new control so focus it (and unfocus the current control)
SET_CONTROL_FOCUS(nextControl, 0);
return true;
}
void CGUIControlGroupList::AddControl(CGUIControl *control, int position /*= -1*/)
{
// NOTE: We override control navigation here, but we don't override the <onleft> etc. builtins
// if specified.
if (position < 0 || position > (int)m_children.size()) // add at the end
position = (int)m_children.size();
if (control)
{ // set the navigation of items so that they form a list
CGUIAction beforeAction = GetAction((m_orientation == VERTICAL) ? ACTION_MOVE_UP : ACTION_MOVE_LEFT);
CGUIAction afterAction = GetAction((m_orientation == VERTICAL) ? ACTION_MOVE_DOWN : ACTION_MOVE_RIGHT);
if (m_children.size())
{
// we're inserting at the given position, so grab the items above and below and alter
// their navigation accordingly
CGUIControl *before = NULL;
CGUIControl *after = NULL;
if (position == 0)
{ // inserting at the beginning
after = m_children[0];
if (!afterAction.HasActionsMeetingCondition() || afterAction.GetNavigation() == GetID()) // we're wrapping around bottom->top, so we have to update the last item
before = m_children[m_children.size() - 1];
if (!beforeAction.HasActionsMeetingCondition() || beforeAction.GetNavigation() == GetID()) // we're wrapping around top->bottom
beforeAction = CGUIAction(m_children[m_children.size() - 1]->GetID());
afterAction = CGUIAction(after->GetID());
}
else if (position == (int)m_children.size())
{ // inserting at the end
before = m_children[m_children.size() - 1];
if (!beforeAction.HasActionsMeetingCondition() || beforeAction.GetNavigation() == GetID()) // we're wrapping around top->bottom, so we have to update the first item
after = m_children[0];
if (!afterAction.HasActionsMeetingCondition() || afterAction.GetNavigation() == GetID()) // we're wrapping around bottom->top
afterAction = CGUIAction(m_children[0]->GetID());
beforeAction = CGUIAction(before->GetID());
}
else
{ // inserting somewhere in the middle
before = m_children[position - 1];
after = m_children[position];
beforeAction = CGUIAction(before->GetID());
afterAction = CGUIAction(after->GetID());
}
if (m_orientation == VERTICAL)
{
if (before) // update the DOWN action to point to us
before->SetAction(ACTION_MOVE_DOWN, CGUIAction(control->GetID()));
if (after) // update the UP action to point to us
after->SetAction(ACTION_MOVE_UP, CGUIAction(control->GetID()));
}
else
{
if (before) // update the RIGHT action to point to us
before->SetAction(ACTION_MOVE_RIGHT, CGUIAction(control->GetID()));
if (after) // update the LEFT action to point to us
after->SetAction(ACTION_MOVE_LEFT, CGUIAction(control->GetID()));
}
}
// now the control's nav
// set navigation path on orientation axis
// and try to apply other nav actions from grouplist
// don't override them if child have already defined actions
if (m_orientation == VERTICAL)
{
control->SetAction(ACTION_MOVE_UP, beforeAction);
control->SetAction(ACTION_MOVE_DOWN, afterAction);
control->SetAction(ACTION_MOVE_LEFT, GetAction(ACTION_MOVE_LEFT), false);
control->SetAction(ACTION_MOVE_RIGHT, GetAction(ACTION_MOVE_RIGHT), false);
}
else
{
control->SetAction(ACTION_MOVE_LEFT, beforeAction);
control->SetAction(ACTION_MOVE_RIGHT, afterAction);
control->SetAction(ACTION_MOVE_UP, GetAction(ACTION_MOVE_UP), false);
control->SetAction(ACTION_MOVE_DOWN, GetAction(ACTION_MOVE_DOWN), false);
}
control->SetAction(ACTION_NAV_BACK, GetAction(ACTION_NAV_BACK), false);
if (!m_useControlPositions)
control->SetPosition(0,0);
CGUIControlGroup::AddControl(control, position);
m_totalSize = GetTotalSize();
}
}