// Token: 0x060057F7 RID: 22519 RVA: 0x00185E84 File Offset: 0x00184084
internal static MatchedTextInfo FindMatchingPrefix(ItemsControl itemsControl, string prefix)
{
bool flag = false;
int num = TextSearch.FindMatchingPrefix(itemsControl, TextSearch.GetPrimaryTextPath(itemsControl), prefix, string.Empty, 0, false, ref flag);
MatchedTextInfo result;
if (num >= 0)
{
CultureInfo culture = TextSearch.GetCulture(itemsControl);
bool isTextSearchCaseSensitive = itemsControl.IsTextSearchCaseSensitive;
string primaryTextFromItem = TextSearch.GetPrimaryTextFromItem(itemsControl, itemsControl.Items[num]);
int matchedPrefixLength;
int textExcludingPrefixLength;
TextSearch.GetMatchingPrefixAndRemainingTextLength(primaryTextFromItem, prefix, culture, !isTextSearchCaseSensitive, out matchedPrefixLength, out textExcludingPrefixLength);
result = new MatchedTextInfo(num, primaryTextFromItem, matchedPrefixLength, textExcludingPrefixLength);
}
else
{
result = MatchedTextInfo.NoMatch;
}
return(result);
}
// Token: 0x060057F3 RID: 22515 RVA: 0x00185B20 File Offset: 0x00183D20
internal bool DoSearch(string nextChar)
{
bool lookForFallbackMatchToo = false;
int num = 0;
ItemCollection items = this._attachedTo.Items;
if (this.IsActive)
{
num = this.MatchedItemIndex;
}
if (this._charsEntered.Count > 0 && string.Compare(this._charsEntered[this._charsEntered.Count - 1], nextChar, true, TextSearch.GetCulture(this._attachedTo)) == 0)
{
lookForFallbackMatchToo = true;
}
string primaryTextPath = TextSearch.GetPrimaryTextPath(this._attachedTo);
bool flag = false;
int num2 = TextSearch.FindMatchingPrefix(this._attachedTo, primaryTextPath, this.Prefix, nextChar, num, lookForFallbackMatchToo, ref flag);
if (num2 != -1)
{
if (!this.IsActive || num2 != num)
{
object item = items[num2];
this._attachedTo.NavigateToItem(item, num2, new ItemsControl.ItemNavigateArgs(Keyboard.PrimaryDevice, ModifierKeys.None));
this.MatchedItemIndex = num2;
}
if (flag)
{
this.AddCharToPrefix(nextChar);
}
if (!this.IsActive)
{
this.IsActive = true;
}
}
if (this.IsActive)
{
this.ResetTimeout();
}
return(num2 != -1);
}
// Token: 0x060057F6 RID: 22518 RVA: 0x00185D48 File Offset: 0x00183F48
private static int FindMatchingPrefix(ItemsControl itemsControl, string primaryTextPath, string prefix, string newChar, int startItemIndex, bool lookForFallbackMatchToo, ref bool wasNewCharUsed)
{
ItemCollection items = itemsControl.Items;
int num = -1;
int num2 = -1;
int count = items.Count;
if (count == 0)
{
return(-1);
}
string value = prefix + newChar;
if (string.IsNullOrEmpty(value))
{
return(-1);
}
BindingExpression bindingExpression = null;
object item = itemsControl.Items[0];
if (SystemXmlHelper.IsXmlNode(item) || !string.IsNullOrEmpty(primaryTextPath))
{
bindingExpression = TextSearch.CreateBindingExpression(itemsControl, item, primaryTextPath);
TextSearch.TextValueBindingExpression.SetValue(itemsControl, bindingExpression);
}
bool flag = true;
wasNewCharUsed = false;
CultureInfo culture = TextSearch.GetCulture(itemsControl);
int i = startItemIndex;
while (i < count)
{
object obj = items[i];
if (obj != null)
{
string primaryText = TextSearch.GetPrimaryText(obj, bindingExpression, itemsControl);
bool isTextSearchCaseSensitive = itemsControl.IsTextSearchCaseSensitive;
if (primaryText != null && primaryText.StartsWith(value, !isTextSearchCaseSensitive, culture))
{
wasNewCharUsed = true;
num = i;
break;
}
if (lookForFallbackMatchToo)
{
if (!flag && prefix != string.Empty)
{
if (primaryText != null && num2 == -1 && primaryText.StartsWith(prefix, !isTextSearchCaseSensitive, culture))
{
num2 = i;
}
}
else
{
flag = false;
}
}
}
i++;
if (i >= count)
{
i = 0;
}
if (i == startItemIndex)
{
break;
}
}
if (bindingExpression != null)
{
TextSearch.TextValueBindingExpression.ClearValue(itemsControl);
}
if (num == -1 && num2 != -1)
{
num = num2;
}
return(num);
}
