private void SearchTextBox_TextChanged(object sender, TextChangedEventArgs e)
{
TextChange textChange = e.Changes.Last();
// We will invoke completion on text insertion and not deletion.
// Also, we don't want to invoke completion on dialog load as we pre populate the target
// location textbox with name of the folder when dialog is initially loaded.
if (textChange.AddedLength > 0 && SearchTextBox.CaretIndex > 0)
{
ThreadHelper.JoinableTaskFactory.RunAsync(async() =>
{
// grab these WPF dependant things while we're still on the UI thread
int caretIndex = SearchTextBox.CaretIndex;
SearchTextBoxViewModel viewModel = ViewModel;
string textBeforeGetCompletion = SearchTextBox.Text;
// Switch to a background thread to not block the UI thread, as this operation can take
// a while for slow network connections
await TaskScheduler.Default;
CompletionSet completionSet = await viewModel.GetCompletionSetAsync(caretIndex);
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
// If the value has changed then this request is out of date.
// If focus is elsewhere the work below won't be used anyway
if (textBeforeGetCompletion != SearchTextBox.Text || !SearchTextBox.IsFocused)
{
return;
}
if (completionSet.Completions == null || !completionSet.Completions.Any())
{
Flyout.IsOpen = false;
return;
}
// repopulate the completion list
CompletionEntries.Clear();
foreach (CompletionItem entry in completionSet.Completions)
{
CompletionEntries.Add(new CompletionEntry(entry, completionSet.Start, completionSet.Length));
}
PositionCompletionPopup(completionSet.Length);
if (CompletionEntries != null && CompletionEntries.Count > 0 && Options.SelectedIndex == -1)
{
CompletionItem selectionCandidate = await ViewModel.GetRecommendedSelectedCompletionAsync(
completionSet: completionSet,
lastSelected: SelectedItem?.CompletionItem);
SelectedItem = CompletionEntries.FirstOrDefault(x => x.CompletionItem.InsertionText == selectionCandidate.InsertionText) ?? CompletionEntries[0];
Options.ScrollIntoView(SelectedItem);
}
Flyout.IsOpen = true;
});
}
}
private void LibrarySearchBox_TextChanged(object sender, TextChangedEventArgs e)
{
OnPropertyChanged(nameof(IsTextEntryEmpty));
TextChange textChange = e.Changes.Last();
// We will invoke completion on text insertion and not deletion.
if (textChange.AddedLength > 0 && !string.IsNullOrEmpty(Text))
{
VisualStudio.Shell.ThreadHelper.JoinableTaskFactory.Run(async() =>
{
CompletionSet completionSet = await SearchService?.Invoke(Text, LibrarySearchBox.CaretIndex);
if (completionSet.Equals(null) || !completionSet.Completions.Any())
{
Flyout.IsOpen = false;
return;
}
int atIndex = Text.IndexOf('@');
if (atIndex >= 0)
{
completionSet.Completions = FilterOutUnmatchedItems(completionSet.Completions, Text.Substring(atIndex + 1));
}
CompletionEntries.Clear();
foreach (CompletionItem entry in completionSet.Completions)
{
CompletionEntries.Add(new CompletionEntry(entry, completionSet.Start, completionSet.Length));
}
PositionCompletions(completionSet.Length);
if (CompletionEntries != null && CompletionEntries.Count > 0 && Options.SelectedIndex == -1)
{
if (atIndex >= 0)
{
SelectedItem = CompletionEntries.FirstOrDefault(x => x.CompletionItem.DisplayText.StartsWith(Text.Substring(atIndex + 1), StringComparison.OrdinalIgnoreCase)) ?? CompletionEntries[0];
}
else
{
string lastSelected = SelectedItem?.CompletionItem.InsertionText;
SelectedItem = CompletionEntries.FirstOrDefault(x => x.CompletionItem.InsertionText == lastSelected) ?? CompletionEntries[0];
}
Options.ScrollIntoView(SelectedItem);
Flyout.IsOpen = true;
}
});
}
}
private void SearchTextBox_TextChanged(object sender, TextChangedEventArgs e)
{
TextChange textChange = e.Changes.Last();
// We will invoke completion on text insertion and not deletion.
// Also, we don't want to invoke completion on dialog load as we pre populate the target
// location textbox with name of the folder when dialog is initially loaded.
if (textChange.AddedLength > 0 && SearchTextBox.CaretIndex > 0)
{
VisualStudio.Shell.ThreadHelper.JoinableTaskFactory.Run(async() =>
{
CompletionSet completionSet = await ViewModel.GetCompletionSetAsync(SearchTextBox.CaretIndex);
if (completionSet.Completions == null || !completionSet.Completions.Any())
{
Flyout.IsOpen = false;
return;
}
// repopulate the completion list
CompletionEntries.Clear();
foreach (CompletionItem entry in completionSet.Completions)
{
CompletionEntries.Add(new CompletionEntry(entry, completionSet.Start, completionSet.Length));
}
PositionCompletionPopup(completionSet.Length);
if (CompletionEntries != null && CompletionEntries.Count > 0 && Options.SelectedIndex == -1)
{
CompletionItem selectionCandidate = await ViewModel.GetRecommendedSelectedCompletionAsync(
completionSet: completionSet,
lastSelected: SelectedItem?.CompletionItem);
SelectedItem = CompletionEntries.FirstOrDefault(x => x.CompletionItem.InsertionText == selectionCandidate.InsertionText) ?? CompletionEntries[0];
Options.ScrollIntoView(SelectedItem);
}
Flyout.IsOpen = true;
});
}
}
private void TargetLocationSearchTextBox_TextChanged(object sender, TextChangedEventArgs e)
{
TextChange textChange = e.Changes.Last();
// We will invoke completion on text insertion and not deletion.
// Also, we don't want to invoke completion on dialog load as we pre populate the target
// location textbox with name of the folder when dialog is initially loaded.
if (textChange.AddedLength > 0 && TargetLocationSearchTextBox.CaretIndex > 0)
{
VisualStudio.Shell.ThreadHelper.JoinableTaskFactory.Run(async() =>
{
CompletionSet completionSet = await SearchService?.Invoke(Text, TargetLocationSearchTextBox.CaretIndex);
if (completionSet.Equals(null) || !completionSet.Completions.Any())
{
Flyout.IsOpen = false;
return;
}
CompletionEntries.Clear();
foreach (CompletionItem entry in completionSet.Completions)
{
CompletionEntries.Add(new CompletionEntry(entry, completionSet.Start, completionSet.Length));
}
PositionCompletions(completionSet.Length);
if (CompletionEntries != null && CompletionEntries.Count > 0 && Options.SelectedIndex == -1)
{
string lastSelected = SelectedItem?.CompletionItem.InsertionText;
SelectedItem = CompletionEntries.FirstOrDefault(x => x.CompletionItem.InsertionText == lastSelected) ?? CompletionEntries[0];
Options.ScrollIntoView(SelectedItem);
}
Flyout.IsOpen = true;
});
}
InstallationFolder.DestinationFolder = TargetLocationSearchTextBox.Text;
}
