private void DoResetSearch()
{
if (m_currentQueryInfo != null)
{
m_currentQueryInfo.Cancel();
m_currentQueryInfo = null;
}
if (!m_fResetSearchInProgress)
{
return; // last reset succeeded, nothing to do.
}
m_fResetSearchAborted = false;
ClearResetTimer();
if (ShouldAbort())
{
return;
}
m_currentQueryInfo = new ExtantEntryInfo();
m_currentQueryInfo.ExtantEntriesCompleted += new EventHandler(m_currentQueryInfo_ExtantEntriesCompleted);
// This should come before we call StartGetting...because the Completed call
// can happen DURING the StartGetting call.
RaiseSearchingChanged();
m_currentQueryInfo.StartGettingExtantEntries(m_cacheSearch, m_currentID,
m_wantExactMatch,
m_vernWs, m_cf, m_uf, m_af,
m_analWs, m_gl);
}
void m_currentQueryInfo_ExtantEntriesCompleted(object sender, EventArgs e)
{
if (sender != m_currentQueryInfo)
{
// We ended some obsolete query. We do NOT want to cancel the
// search-in-progress thing!
(sender as ExtantEntryInfo).Cleanup();
return;
}
// if disposed...dialog has closed...don't try to reset!
// This can easily happen if the search thread is still running
// when the dialog is closed.
if (IsDisposed)
{
return;
}
try
{
ResetSearch();
if (m_fResetSearchAborted)
{
return; // we did not complete the reset, will try again.
}
ClearResetTimer();
m_fResetSearchInProgress = false;
}
finally
{
// Any exit path from here means we're done searching.
// (The Reset Timer may have fired before we could stop it above...
// See LT-7576 and LT-7507.)
if (m_currentQueryInfo != null)
{
m_currentQueryInfo.Cleanup();
m_currentQueryInfo = null;
}
RaiseSearchingChanged();
}
}
