private void TextArea_PreviewKeyDown(object sender, KeyEventArgs e)
{
e.Handled = true;
if (this.IntelliSensePopup.IsOpen)
{
if (Keyboard.IsKeyDown(Key.Tab) || Keyboard.IsKeyDown(Key.Enter))
{
this.Editor.Document.Insert(this.Editor.CaretOffset, this.IntelliSenseEntrySelected.ContentToFinish);
this.IntelliSensePopup.IsOpen = false;
}
else if (Keyboard.IsKeyDown(Key.Up))
{
var index = this.IntelliSenseEntries.IndexOf(this.IntelliSenseEntrySelected) - 1;
this.IntelliSenseEntrySelected = this.IntelliSenseEntries.ElementAt(index < 0 ? 0 : index);
}
else if (Keyboard.IsKeyDown(Key.Down))
{
var index = this.IntelliSenseEntries.IndexOf(this.IntelliSenseEntrySelected) + 1;
this.IntelliSenseEntrySelected = this.IntelliSenseEntries.ElementAt(index >= this.IntelliSenseEntries.Count ? this.IntelliSenseEntries.Count - 1 : index);
}
else
{
this.IntelliSensePopup.IsOpen = false;
e.Handled = false;
}
}
else
{
e.Handled = false;
}
}
private void ShowIntelliSense()
{
if (this.Editor == null)
{
return;
}
string curWord = this.Editor.Document.GetWordAround(this.Editor.CaretOffset - 1);
this.IntelliSenseEntries = this.GetIntelliSenseEntries(this.Document, curWord, this.Editor.CaretOffset);
this.IntelliSenseEntrySelected = this.IntelliSenseEntries.FirstOrDefault();
if (this.IntelliSenseEntries.Count > 0)
{
this.IntelliSensePopup.DataContext = this;
var pos = this.Editor.TextArea.TextView.GetVisualPosition(this.Editor.TextArea.Caret.Position, ICSharpCode.AvalonEdit.Rendering.VisualYPosition.TextBottom);
this.IntelliSensePopup.PlacementTarget = this.Editor;
this.IntelliSensePopup.Placement = PlacementMode.Relative;
this.IntelliSensePopup.HorizontalOffset = pos.X + 10 + 18 * 2;
this.IntelliSensePopup.VerticalOffset = pos.Y;
this.IntelliSensePopup.IsOpen = true;
}
}
