void PerformElementChanged(CompletionPopupViewModel viewModel, KeyEventArgs args)
{
if(viewModel.CompletionItems.Count <= 0)
return;
if(args.Key == Key.Down)
viewModel.SelectNextCompletionItem();
else
viewModel.SelectPreviousCompletionItem();
viewModel.ScrollIntoSelectedItem();
}
public ScriptEditorViewModel(IEventAggregator eventAggregator, ICodeCompletionProvider provider, CompletionPopupViewModel completionModel)
{
this.eventAggregator = eventAggregator;
this.provider = provider;
Replacer = new Replacer();
CompletionWindow = completionModel;
Enabled = true;
UpdateCompletionItems();
eventAggregator.Subscribe(this);
completionModel.Observers.Add(new OpenOnWriteAction(IsBeginningOfExpression));
completionModel.Observers.Add(new CloseOnSteppingIntoEndOfExpression(() => provider.IsBeginningOfExpression(Script, CaretPosition)));
completionModel.Observers.Add(new CloseOnWritingEndOfExpression(IsEndOfExpression));
}
protected override bool ShouldSwallow(CompletionPopupViewModel viewModel, KeyEventArgs args)
{
return ShouldSwallowKeyPress;
}
protected override void DoAct(CompletionPopupViewModel viewModel, KeyEventArgs args)
{
Action(viewModel);
}
protected override bool ShouldSwallow(CompletionPopupViewModel viewModel, KeyEventArgs args)
{
return viewModel.CompletionItems.Count > 0;
}
protected override bool IsTriggeredAddon(IPopupEvent @event, CompletionPopupViewModel viewModel)
{
return viewModel.IsOpen;
}
protected override void DoAct(CompletionPopupViewModel viewModel, KeyEventArgs args)
{
PerformElementChanged(viewModel, args);
}
