//called recursively
protected void FindText(DependencyObject searchIn, bool parentUIElementIsFindable)
{
if (searchIn == null)
{
return;
}
bool?isFindable = searchIn is UIElement?KFindBox.GetIsFindable(searchIn as UIElement) : true;
IRunReader runReader = null;
if (searchIn is UIElement && ((parentUIElementIsFindable && isFindable != false) || isFindable == true))//GetIsFindable is bool? - if null then just not set so use parentUIElementIsFindable
{
parentUIElementIsFindable = true;
runReader = FindHandlerRegistry.CreateIRunReaderHandlerFor(searchIn);
}
if (runReader != null)
{
HighlightHandler handler = highlightHandlers.GetCreateHighlightHandler(searchIn as UIElement, bodyHighlightAdornerBrush, bodyHighlightAdornerPen);
FindTextIn(runReader, handler.AddHighlight, searchText);
}
//recurse through children
var childCount = VisualTreeHelper.GetChildrenCount(searchIn);
for (var i = 0; i < childCount; ++i)
{
FindText(VisualTreeHelper.GetChild(searchIn, i), parentUIElementIsFindable);
}
}
//called recursively, searchIn doesn't have to be a UIElement because we will look at it's children for any child UIElemenets
/// <summary>
/// Recursively searches <c>searchIn</c> for the Query.
/// </summary>
/// <param name="searchIn">DependencyObject to search inside.</param>
/// <param name="parentUIElementIsFindable">Whether the parent UI element has been determined as 'findable'. If the parent is findable then <c>searchIn</c> is finable too unless explicitly marked otherwise with IsFindable="false".</param>
/// <returns>Whether searchIn or any of it's children where marked as either 'findable' or not (IsFindable="true" or IsFindable="false").</returns>
protected bool FindText(DependencyObject searchIn, bool parentUIElementIsFindable)
{
bool foundIsFindableAttribute = false;//whether this element searchIn or its children were marked with isfindable
bool searchChildren = parentUIElementIsFindable;
if (searchIn == null)
{
return(foundIsFindableAttribute);
}
currentGlobalScanHighlightCount = 0;
bool?isFindable = searchIn is UIElement?RapidFindReplaceControl.GetIsFindable(searchIn as UIElement) : true;
if (searchIn is UIElement)
{
foundIsFindableAttribute = RapidFindReplaceControl.GetIsFindable(searchIn as UIElement) != null;
}
IRunReader runReader = null;
if (searchIn is UIElement && WillSearchInElement(searchIn as UIElement, parentUIElementIsFindable, ref searchChildren, isFindable))//GetIsFindable is bool? - if null then just not set so use parentUIElementIsFindable
{
searchChildren = true;
runReader = FindHandlerRegistry.CreateIRunReaderHandlerFor(searchIn);
}
else if (!(searchIn is UIElement))
{
runReader = FindHandlerRegistry.CreateIRunReaderHandlerFor(searchIn);//we might be able to get a runreader for non UIElement (eg RunCollectionRunReader)
}
if (runReader != null)
{
HighlightHandler handler = highlightHandlers.GetCreateHighlightHandler(searchIn, bodyHighlightAdornerBrush, bodyHighlightAdornerPen, bodyIterativeHighlightAdornerBrush, bodyIterativeHighlightAdornerPen);
FindTextIn(runReader, handler.AddHighlight, Query);
}
//recurse through children
if (searchIn is Visual || searchIn is System.Windows.Media.Media3D.Visual3D)
{
var childCount = VisualTreeHelper.GetChildrenCount(searchIn);
for (var i = 0; i < childCount; ++i)
{
foundIsFindableAttribute |= FindText(VisualTreeHelper.GetChild(searchIn, i), searchChildren && isFindable != false);
}
}
return(foundIsFindableAttribute);
}