private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
{
var newinfo = new cTaskInfo();
var oldinfo = System.Threading.Interlocked.Exchange(ref mTaskInfo, newinfo);
bool refresh = true;
newinfo.mPattern = inputTextBox.Text.ToLowerInvariant();
if (oldinfo != null)
{
oldinfo.mTokenSource.Cancel();
if (oldinfo.mDone && newinfo.mPattern.StartsWith(oldinfo.mPattern))
{
newinfo.mSuggestions = oldinfo.mSuggestions;
refresh = false;
}
}
if (refresh)
{
UInt64 mask = cProjectItemWithMask.sGetMask(inputTextBox.Text);
if (newinfo.mSuggestions != null)
{
newinfo.mSuggestions.Clear();
}
else
{
newinfo.mSuggestions = new System.Collections.Generic.List <cSuggestion>();
}
foreach (var pi in mAllItems)
{
if ((pi.mMask & mask) == mask)
{
newinfo.mSuggestions.Add(new cSuggestion(0, 0, pi.mItem));
}
}
if (newinfo.mPattern.Length <= 1) // no point in doing more complicated fuzzing
{
fileNamesGrid.ItemsSource = newinfo.mSuggestions.GetRange(0, Math.Min(10, newinfo.mSuggestions.Count));
fileNamesGrid.SelectedItem = null;
fileNamesGrid.SelectedIndex = 0;
newinfo.mDone = true;
return;
}
}
var token = newinfo.mTokenSource.Token;
System.Threading.Tasks.Task.Run(() => mGetSuggestions(newinfo, this, token), newinfo.mTokenSource.Token);
}
private static void mGetSuggestions(cTaskInfo info, TestWindow w, System.Threading.CancellationToken token)
{
var ret = new System.Collections.Generic.List <cSuggestion>();
for (int i = 0; i < info.mSuggestions.Count; ++i)
{
if (token.IsCancellationRequested)
{
return;
}
var sug = info.mSuggestions[i];
if (mGetMatch(info.mPattern, sug))
{
ret.Add(sug);
}
}
ret.Sort();
info.mSuggestions = ret;
info.mDone = true;
w.mUpdateSuggestions(info.mPattern, ret);
}