internal static void SelectPrevious(EditingContext context)
{
Selection s = context.Items.GetValue <Selection>();
if (SelectionImplementation.IsMultiSelection(s))
{
SelectionImplementation.SelectParent(context);
}
else
{
if (s.PrimarySelection == null)
{
return;
}
ModelItem primarySelection = s.PrimarySelection;
ViewService service = context.Services.GetService <ViewService>();
ModelItem previousSibling = SelectionImplementation.GetPreviousSibling(primarySelection, service);
ModelItem modelItem = previousSibling != null?SelectionImplementation.GetLastChild(previousSibling, service) : (primarySelection.Parent != null ? primarySelection.Parent : SelectionImplementation.GetLastChild(primarySelection, service));
if (modelItem == null)
{
return;
}
context.Items.SetValue((ContextItem) new Selection(new ModelItem[1]
{
modelItem
}));
}
}
internal static void SelectNext(EditingContext context)
{
Selection s = context.Items.GetValue <Selection>();
if (SelectionImplementation.IsMultiSelection(s))
{
SelectionImplementation.SelectParent(context);
}
else
{
if (s.PrimarySelection == null)
{
return;
}
ModelItem modelItem1 = s.PrimarySelection;
ViewService service = context.Services.GetService <ViewService>();
ModelItem modelItem2;
for (modelItem2 = SelectionImplementation.GetFirstChild(s.PrimarySelection, service); modelItem2 == null && modelItem1.Parent != null; modelItem1 = modelItem1.Parent)
{
modelItem2 = SelectionImplementation.GetNextSibling(modelItem1, service);
}
if (modelItem2 == null)
{
modelItem2 = modelItem1;
}
if (modelItem2 == null)
{
return;
}
context.Items.SetValue((ContextItem) new Selection(new ModelItem[1]
{
modelItem2
}));
}
}
