public static void AutoCompletion(Rect rect, SearchContext context, ISearchView view)
{
if (s_DiscardAutoComplete || controlID <= 0)
{
return;
}
if (s_AutoCompleting && Event.current.type == EventType.MouseDown && !s_AutoCompleteRect.Contains(Event.current.mousePosition))
{
s_DiscardAutoComplete = true;
s_AutoCompleting = false;
return;
}
var te = GetTextEditor();
var cursorPosition = te.cursorIndex;
if (cursorPosition == 0)
{
return;
}
var searchText = context.searchText;
var lastTokenStartPos = searchText.LastIndexOf(' ', Math.Max(0, te.cursorIndex - 1));
var lastToken = lastTokenStartPos == -1 ? searchText : searchText.Substring(lastTokenStartPos + 1);
var keywords = SearchService.GetKeywords(context, lastToken).Where(k => !k.Equals(lastToken, StringComparison.OrdinalIgnoreCase)).ToArray();
if (keywords.Length > 0)
{
const int maxAutoCompleteCount = 16;
s_AutoCompleteMaxIndex = Math.Min(keywords.Length, maxAutoCompleteCount);
if (!s_AutoCompleting)
{
s_AutoCompleteIndex = 0;
}
if (Event.current.type == EventType.Repaint)
{
var content = new GUIContent(context.searchText.Substring(0, context.searchText.Length - lastToken.Length));
var offset = Styles.searchField.CalcSize(content).x;
s_AutoCompleteRect = rect;
s_AutoCompleteRect.x += offset;
s_AutoCompleteRect.y = rect.yMax;
s_AutoCompleteRect.width = 250;
s_AutoCompleteRect.x = Math.Min(rect.width - s_AutoCompleteRect.width - 25, s_AutoCompleteRect.x);
}
var lt = lastToken;
var autoFill = DoAutoComplete(lastToken, keywords, maxAutoCompleteCount, 0.1f);
if (autoFill == null)
{
// No more results
s_AutoCompleting = false;
s_AutoCompleteIndex = -1;
}
else if (autoFill != lastToken)
{
var regex = new Regex(Regex.Escape(lastToken), RegexOptions.IgnoreCase);
autoFill = regex.Replace(autoFill, "");
view.SetSearchText(context.searchText.Insert(cursorPosition, autoFill));
}
else
{
s_AutoCompleting = true;
}
}
else
{
s_AutoCompleting = false;
s_AutoCompleteIndex = -1;
}
}