private void Search(object sender, DoWorkEventArgs e)
{
string pattern = (string)e.Argument;
string lastPattern;
List<SearchResult> results = new List<SearchResult>();
List<Document> resultScope = new List<Document>();
if (pattern.Equals(string.Empty))
{
e.Result = SetResultArgs(pattern, results);
return;
}
else if (_pastResults.ContainsKey(pattern))
{
e.Result = SetResultArgs(pattern, _pastResults[pattern].SearchResults);
return;
}
else if (TryGetLastPattern(pattern, out lastPattern))
{
SetScope(_pastResults[lastPattern].ResultScope);
}
// Search
Regex rgx = new Regex(Regex.Escape(pattern), RegexOptions.IgnoreCase);
foreach (Document doc in _scope)
{
SearchResult result = new SearchResult(doc, pattern);
string title = doc.DisplayName;
MatchCollection titleMatches = rgx.Matches(title);
result.SetTitleMatches(title, titleMatches);
if (SettingUtils.GetSetting<bool>(Setting.SearchFileText))
{
string text = WhitespaceRgx.Replace(doc.Text, " ");
MatchCollection textMatches = rgx.Matches(text);
result.SetTextMatches(text, textMatches);
}
if (result.HasMatches)
{
results.Add(result);
resultScope.Add(doc);
}
}
Triple t = new Triple(resultScope, results);
_pastResults.Add(pattern, t);
e.Result = SetResultArgs(pattern, results);
}