public override void Execute(object arg)
{
ITypeId type = this.Type;
if (type is ProjectNeutralTypeId && !this.SceneViewModel.ProjectContext.PlatformMetadata.IsSupported((ITypeResolver)this.SceneViewModel.ProjectContext, type))
{
return;
}
using (SceneEditTransaction editTransaction = this.DesignerContext.ActiveDocument.CreateEditTransaction(string.Format((IFormatProvider)CultureInfo.CurrentCulture, StringTable.UndoUnitLayoutPaneChangeLayoutType, new object[1]
{
(object)this.Type.Name
})))
{
bool flag1 = false;
SceneViewModel activeSceneViewModel = this.DesignerContext.ActiveSceneViewModel;
ReadOnlyCollection <SceneElement> selection = this.DesignerContext.SelectionManager.ElementSelectionSet.Selection;
SceneElement primarySelection1 = this.DesignerContext.SelectionManager.ElementSelectionSet.PrimarySelection;
List <SceneElement> list = new List <SceneElement>();
bool flag2 = false;
bool flag3 = false;
bool flag4 = false;
SceneElement sceneElement1 = (SceneElement)null;
IStoryboardContainer storyboardContainer = (IStoryboardContainer)null;
SceneElement primarySelection2 = (SceneElement)null;
this.DesignerContext.SelectionManager.ElementSelectionSet.Clear();
List <SceneElement> elements = new List <SceneElement>();
elements.AddRange((IEnumerable <SceneElement>)selection);
ElementUtilities.SortElementsByDepth(elements);
foreach (SceneElement sceneElement2 in elements)
{
ITypeId typeId1 = (ITypeId)null;
foreach (ITypeId typeId2 in ChangeLayoutTypeFlyoutCommand.LayoutTypes)
{
if (typeId2.IsAssignableFrom((ITypeId)sceneElement2.Type))
{
typeId1 = typeId2;
break;
}
}
if (typeId1 == null)
{
list.Add(sceneElement2);
}
else
{
if (activeSceneViewModel.LockedInsertionPoint != null)
{
if (activeSceneViewModel.LockedInsertionPoint.SceneElement == sceneElement2)
{
flag2 = true;
}
else if (sceneElement2.IsAncestorOf((SceneNode)activeSceneViewModel.ActiveSceneInsertionPoint.SceneElement))
{
sceneElement1 = activeSceneViewModel.ActiveSceneInsertionPoint.SceneElement;
flag2 = true;
}
}
if (primarySelection1 == sceneElement2)
{
flag4 = true;
}
if (!flag3 && activeSceneViewModel.ActiveStoryboardContainer == sceneElement2)
{
activeSceneViewModel.SetActiveStoryboardTimeline((IStoryboardContainer)null, (StoryboardTimelineSceneNode)null, (TriggerBaseNode)null);
flag3 = true;
}
using (sceneElement2.ViewModel.ForceBaseValue())
{
BaseFrameworkElement parent1 = sceneElement2 as BaseFrameworkElement;
List <LayoutCacheRecord> layoutCache = (List <LayoutCacheRecord>)null;
ILayoutDesigner designerForParent = activeSceneViewModel.GetLayoutDesignerForParent(sceneElement2, true);
if (parent1 != null)
{
layoutCache = designerForParent.GetCurrentRects(parent1);
}
SceneElement elementContainingChildren = (SceneElement)null;
SceneElement sceneElement3 = ChangeLayoutTypeCommand.ChangeLayoutType(sceneElement2, type, ref elementContainingChildren);
editTransaction.Update();
if (sceneElement3.IsViewObjectValid)
{
this.SceneViewModel.DefaultView.UpdateLayout();
BaseFrameworkElement parent2 = elementContainingChildren as BaseFrameworkElement;
if (parent2 != null && parent2.IsViewObjectValid && layoutCache != null)
{
activeSceneViewModel.GetLayoutDesignerForParent(elementContainingChildren, true).SetCurrentRects(parent2, layoutCache);
}
if (flag2 && sceneElement1 == null)
{
sceneElement1 = elementContainingChildren;
}
if (flag3 && storyboardContainer == null)
{
storyboardContainer = (IStoryboardContainer)sceneElement3;
}
if (flag4 && primarySelection2 == null)
{
primarySelection2 = sceneElement3;
}
list.Add(sceneElement3);
}
flag1 = true;
}
}
}
if (flag2 && sceneElement1 != null)
{
activeSceneViewModel.SetLockedInsertionPoint(sceneElement1);
}
if (flag3 && storyboardContainer != null)
{
activeSceneViewModel.SetActiveStoryboardTimeline(storyboardContainer, (StoryboardTimelineSceneNode)null, (TriggerBaseNode)null);
}
this.DesignerContext.SelectionManager.ElementSelectionSet.SetSelection((ICollection <SceneElement>)list, primarySelection2);
if (flag1)
{
editTransaction.Commit();
}
else
{
editTransaction.Cancel();
}
}
}