public override void ItemDidCollapse(NSNotification notification)
{
NSObjectFacade facade = notification.UserInfo.Values[0] as NSObjectFacade;
var outline = (NSOutlineView)notification.Object;
nint row = outline.RowForItem(facade);
if (this.isUpdatingExpansions)
{
NSView view = outline.GetView(0, row, makeIfNecessary: true);
if (view.Subviews[0] is NSButton expander)
{
expander.State = NSCellStateValue.Off;
}
return;
}
if (facade.Target is PanelGroupViewModel group)
{
this.dataSource.DataContext.SetIsExpanded(group.Category, isExpanded: false);
}
else if (facade.Target is ObjectPropertyViewModel ovm)
{
NSView view = outline.GetView(0, row, makeIfNecessary: false);
SetRowValueBackground(view, valueBackground: false);
}
}
public NSObject GetFacade(object element)
{
NSObject facade;
if (!this.groupFacades.TryGetValue(element, out facade))
{
this.groupFacades[element] = facade = new NSObjectFacade(element);
}
return(facade);
}
public override void ItemDidCollapse(NSNotification notification)
{
if (this.isExpanding)
{
return;
}
NSObjectFacade facade = notification.UserInfo.Values[0] as NSObjectFacade;
var group = facade.Target as IGroupingList <string, EditorViewModel>;
if (group != null)
{
this.dataSource.DataContext.SetIsExpanded(group.Key, isExpanded: false);
}
}
public NSObject GetFacade(object element)
{
NSObject facade;
if (element is IGrouping <string, PropertyViewModel> )
{
if (!this.groupFacades.TryGetValue(element, out facade))
{
this.groupFacades[element] = facade = new NSObjectFacade(element);
}
}
else
{
facade = new NSObjectFacade(element);
}
return(facade);
}
private void EnsureOpenOrClose(NSOutlineView outline, NSObjectFacade item, bool open)
{
if (open)
{
outline.ExpandItem(item);
}
else
{
outline.CollapseItem(item);
}
NSView view = GetViewForItem(outline, item, makeIfNeccessary: true);
if (view.Subviews[0] is NSButton expander)
{
expander.State = (open) ? NSCellStateValue.On : NSCellStateValue.Off;
}
}
public NSObjectFacade GetFacade(object element)
{
NSObjectFacade facade;
if (element is PanelGroupViewModel)
{
if (!this.groupFacades.TryGetValue(element, out facade))
{
this.groupFacades[element] = facade = new NSObjectFacade(element);
}
}
else
{
facade = new NSObjectFacade(element);
}
return(facade);
}
private NSView GetViewForItem(NSOutlineView outline, NSObjectFacade facade, bool makeIfNeccessary = false)
{
nint row = outline.RowForItem(facade);
return(outline.GetView(0, row, makeIfNeccessary));
}
public bool TryGetFacade(object element, out NSObjectFacade facade)
{
return(this.groupFacades.TryGetValue(element, out facade));
}
private NSView GetViewForItem(NSOutlineView outline, NSObjectFacade facade)
{
nint row = outline.RowForItem(facade);
return(outline.GetView(0, row, false));
}