private static void OnIsSelectedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
MyRibbonGalleryItem container = (MyRibbonGalleryItem)d;
bool newValue = (bool)e.NewValue;
MyRibbonGalleryCategory ribbonGalleryCategory = container.RibbonGalleryCategory;
if (ribbonGalleryCategory == null)
{
return;
}
MyRibbonGallery ribbonGallery = ribbonGalleryCategory.RibbonGallery;
if (ribbonGallery == null)
{
return;
}
object obj = ribbonGalleryCategory.ItemContainerGenerator.ItemFromContainer((DependencyObject)container);
if (obj == DependencyProperty.UnsetValue)
{
obj = (object)container;
}
ribbonGallery.ChangeSelection(obj, container, newValue);
Debug.WriteLine("hello");
}
public void ChangeSelection(object item, MyRibbonGalleryItem container, bool isSelected)
{
if (this.IsSelectionChangeActive)
{
return;
}
object selectedItem = this.SelectedItem;
object itemValue = item;
bool flag = !MyRibbonGallery.VerifyEqual(selectedItem, itemValue);
try
{
Debug.WriteLine("here");
this.IsSelectionChangeActive = true;
if (isSelected == flag)
{
Debug.WriteLine("here1");
if (!isSelected && container != null)
{
Debug.WriteLine("here2");
container.IsSelected = false;
int index = this._selectedContainers.IndexOf(container);
if (index > -1)
{
Debug.WriteLine("here3");
this._selectedContainers.RemoveAt(index);
container.OnUnselected_(new RoutedEventArgs(RibbonGalleryItem.UnselectedEvent, (object)container));
}
}
else
{
Debug.WriteLine("here4");
for (int index = 0; index < this._selectedContainers.Count; ++index)
{
MyRibbonGalleryItem selectedContainer = (MyRibbonGalleryItem)this._selectedContainers[index];
selectedContainer.IsSelected = false;
selectedContainer.OnUnselected_(new RoutedEventArgs(RibbonGalleryItem.UnselectedEvent, (object)selectedContainer));
if (!isSelected)
{
Debug.WriteLine("here5");
this.MoveCurrentToPosition_(selectedContainer.RibbonGalleryCategory.CollectionView, -1);
}
}
this._selectedContainers.Clear();
if (!isSelected)
{
Debug.WriteLine("here6");
this.InvalidateProperty(RibbonGallery.SelectedItemProperty);
this.InvalidateProperty(RibbonGallery.SelectedValueProperty);
this.MoveCurrentToPosition_(this.CollectionView, -1);
this.MoveCurrentToPosition_(this.SourceCollectionView, -1);
if (LogicalTreeHelper.GetParent((DependencyObject)this) is MyRibbonComboBox parent && this == parent.FirstGallery && !parent.IsSelectedItemCached)
{
parent.UpdateSelectionProperties_();
}
}
}
if (isSelected)
{
Debug.WriteLine("here7");
this.SetCurrentValue(RibbonGallery.SelectedItemProperty, item);
this.SetCurrentValue(RibbonGallery.SelectedValueProperty, this.GetSelectableValueFromItem(item));
if (container != null)
{
this.SynchronizeWithCurrentItem(container.RibbonGalleryCategory, item);
}
else
{
this.SynchronizeWithCurrentItem();
}
}
}
if (isSelected)
{
Debug.WriteLine("here8");
if (container != null)
{
Debug.WriteLine("here9");
if (!this._selectedContainers.Contains(container))
{
Debug.WriteLine("her10e");
this._selectedContainers.Add(container);
container.IsSelected = true;
container.OnSelected_(new RoutedEventArgs(RibbonGalleryItem.SelectedEvent, (object)container));
}
}
}
}
finally
{
this.IsSelectionChangeActive = false;
}
if (!flag)
{
Debug.WriteLine("here11");
return;
}
Debug.WriteLine("here12");
this.OnSelectionChanged(new RoutedPropertyChangedEventArgs <object>(selectedItem, isSelected ? itemValue : (object)null, RibbonGallery.SelectionChangedEvent));
}