// Token: 0x06006F07 RID: 28423 RVA: 0x001FE3FC File Offset: 0x001FC5FC
private static IContentHost GetICHFromFlowDocument(TextElement contentElement, FlowDocument flowDocument)
{
IContentHost result = null;
ITextView textView = flowDocument.StructuralCache.TextContainer.TextView;
if (textView != null)
{
if (textView.RenderScope is FlowDocumentView)
{
if (VisualTreeHelper.GetChildrenCount(textView.RenderScope) > 0)
{
result = (VisualTreeHelper.GetChild(textView.RenderScope, 0) as IContentHost);
}
}
else if (textView.RenderScope is FrameworkElement)
{
List <DocumentPageView> list = new List <DocumentPageView>();
ContentHostHelper.FindDocumentPageViews(textView.RenderScope, list);
for (int i = 0; i < list.Count; i++)
{
if (list[i].DocumentPage is FlowDocumentPage)
{
textView = (ITextView)((IServiceProvider)list[i].DocumentPage).GetService(typeof(ITextView));
if (textView != null && textView.IsValid && (textView.Contains(contentElement.ContentStart) || textView.Contains(contentElement.ContentEnd)))
{
result = (list[i].DocumentPage.Visual as IContentHost);
}
}
}
}
}
return(result);
}
// Token: 0x06006F08 RID: 28424 RVA: 0x001FE508 File Offset: 0x001FC708
private static void FindDocumentPageViews(Visual root, List <DocumentPageView> pageViews)
{
Invariant.Assert(root != null);
Invariant.Assert(pageViews != null);
if (root is DocumentPageView)
{
pageViews.Add((DocumentPageView)root);
return;
}
int internalVisualChildrenCount = root.InternalVisualChildrenCount;
for (int i = 0; i < internalVisualChildrenCount; i++)
{
Visual visual = root.InternalGetVisualChild(i);
FrameworkElement frameworkElement = visual as FrameworkElement;
if (frameworkElement != null)
{
if (frameworkElement.TemplatedParent != null)
{
if (frameworkElement is DocumentPageView)
{
pageViews.Add(frameworkElement as DocumentPageView);
}
else
{
ContentHostHelper.FindDocumentPageViews(frameworkElement, pageViews);
}
}
}
else
{
ContentHostHelper.FindDocumentPageViews(visual, pageViews);
}
}
}
// Token: 0x06006F06 RID: 28422 RVA: 0x001FE374 File Offset: 0x001FC574
internal static IContentHost FindContentHost(ContentElement contentElement)
{
IContentHost result = null;
if (contentElement == null)
{
return(null);
}
if (contentElement is TextElement)
{
TextContainer textContainer = ((TextElement)contentElement).TextContainer;
DependencyObject parent = textContainer.Parent;
if (parent is IContentHost)
{
result = (IContentHost)parent;
}
else if (parent is FlowDocument)
{
result = ContentHostHelper.GetICHFromFlowDocument((TextElement)contentElement, (FlowDocument)parent);
}
else if (textContainer.TextView != null && textContainer.TextView.RenderScope is IContentHost)
{
result = (IContentHost)textContainer.TextView.RenderScope;
}
}
return(result);
}