public override void KeyDown(KeyEventArgs args)
{
char?key = this.keyTypeConverter.ConvertToChar(args.Key);
// Check if the parethesis key was pressed
if (key.HasValue && key.Value == '(')
{
// Create a regex line data
RegexLineData regexLineData = RegexLineData.CreateFromCaretPosition(this.view);
// Check if the line contains a new Regex statement
if (IsValid(regexLineData))
{
this.view.TextBuffer.Insert(regexLineData.CaretPosition, key.ToString());
// Show the regex editor
RegexEditorResult editorResult = this.regexEditorService.ShowEditor();
// Insert the edited pattern in the line
if (editorResult.Result.HasValue && editorResult.Result.Value)
{
this.view.TextBuffer.Insert(regexLineData.CaretPosition + 1, string.Format("@\"{0}\"", editorResult.Pattern));
}
args.Handled = true;
}
}
}
public override void PreprocessMouseLeftButtonUp(MouseButtonEventArgs e)
{
// Check if ctrl+click
if (Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl))
{
// Create a regex line data
RegexLineData regexLineData = RegexLineData.CreateFromCaretPosition(this.view);
// Check if the line contains a new Regex statement
if (IsValid(regexLineData))
{
// Get the regular expression parameter of the Regex ctor
SnapshotSpan?expression = regexLineData.Expression;
if (expression.HasValue)
{
// Check if the click was made over the regular expression parameter.
if (regexLineData.CaretPosition >= expression.Value.Start.Position && regexLineData.CaretPosition <= expression.Value.End.Position)
{
RegexEditorResult editorResult = this.regexEditorService.ShowEditor(regexLineData.Expression.Value.GetText());
if (editorResult.Result.HasValue && editorResult.Result.Value)
{
this.view.TextBuffer.Replace(regexLineData.Expression.Value.Span, editorResult.Pattern);
}
e.Handled = true;
}
}
}
}
}
/// <summary>
/// Creates the regex line for the current position in the view.
/// </summary>
/// <param name="view"></param>
/// <param name="line"></param>
/// <returns></returns>
internal static RegexLineData CreateFromTextViewLine(ITextView view, ITextViewLine line)
{
RegexLineData data = new RegexLineData();
data.View = view;
// TODO: RC1
//data.Line = line.SnapshotLine;
data.Line = line.Snapshot.GetLineFromPosition(line.Start.Position);
return(data);
}
/// <summary>
/// Creates the regex line for the current position in the view.
/// </summary>
/// <param name="view"></param>
/// <returns></returns>
internal static RegexLineData CreateFromCaretPosition(IWpfTextView view)
{
RegexLineData data = new RegexLineData();
data.View = view;
data.CaretPoint = view.Caret.Position.Point.GetPoint(
view.TextBuffer,
PositionAffinity.Predecessor);
data.Line = view.TextSnapshot.GetLineFromPosition(data.CaretPosition);
return(data);
}
public override void PreprocessMouseMove(MouseEventArgs e)
{
// Look for regex lines to show the tooltip/hand cursor
foreach (ITextViewLine line in this.view.TextViewLines)
{
RegexLineData regexLineData = RegexLineData.CreateFromTextViewLine(this.view, line);
// Check if the regex line contains a new Regex statement
if (IsValid(regexLineData))
{
// Get the pattern parameter
SnapshotSpan?expression = regexLineData.Expression;
if (expression.HasValue)
{
// Get the marker geometry of the pattern parameter
Geometry expressionGeometry = view.TextViewLines.GetMarkerGeometry(expression.Value);
if (expressionGeometry != null && expressionGeometry.Bounds.Contains(GetPointRelativeToView(e)))
{
e.Handled = true;
if (!IsToolTipShown)
{
IsToolTipShown = true;
IToolTipProvider toolTipProvider = this.toolTipProviderFactory.GetToolTipProvider(this.view);
// Show the tooltip
toolTipProvider.ShowToolTip(expression.Value.Snapshot.CreateTrackingSpan(
expression.Value.Span,
SpanTrackingMode.EdgeExclusive), "Ctrl+Click to open the regex editor",
PopupStyles.DismissOnMouseLeaveText);
}
// If the ctrl key is pressed change the cursor to hand
if (Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl))
{
e.MouseDevice.OverrideCursor = Cursors.Hand;
}
return;
}
}
}
}
IsToolTipShown = false;
e.MouseDevice.OverrideCursor = null;
}
/// <summary>
/// Returns true if the regex line ends with a "new Regex" statement (for C# or VB)
/// </summary>
/// <param name="regexLineData"></param>
/// <returns></returns>
private bool IsValid(RegexLineData regexLineData)
{
return(NewRegexStatementForCSharpOrVisualBasic.IsMatch(regexLineData.Text.TrimEnd()));
}
