private ImmutableArray <char[]> GetChunks(SourceText text)
{
var largeText = text as LargeText;
if (largeText != null)
{
var chunkField = text.GetType().GetField("_chunks", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);
return((ImmutableArray <char[]>)chunkField.GetValue(text));
}
else
{
return(ImmutableArray <char[]> .Empty);
}
}
protected override void ApplyDocumentTextChanged(DocumentId id, SourceText text)
{
var document = GetDocument(id);
if (document == null)
{
return;
}
bool isOpen;
var filePath = document.FilePath;
var data = TextFileProvider.Instance.GetTextEditorData(filePath, out isOpen);
// Guard against already done changes in linked files.
// This shouldn't happen but the roslyn merging seems not to be working correctly in all cases :/
if (document.GetLinkedDocumentIds().Length > 0 && isOpen && !(text.GetType().FullName == "Microsoft.CodeAnalysis.Text.ChangedText"))
{
return;
}
SourceText formerText;
if (changedFiles.TryGetValue(filePath, out formerText))
{
if (formerText.Length == text.Length && formerText.ToString() == text.ToString())
{
return;
}
}
changedFiles [filePath] = text;
Projection projection = null;
foreach (var entry in ProjectionList)
{
var p = entry.Projections.FirstOrDefault(proj => FilePath.PathComparer.Equals(proj.Document.FileName, filePath));
if (p != null)
{
filePath = entry.File.FilePath;
projection = p;
break;
}
}
SourceText oldFile;
if (!isOpen || !document.TryGetText(out oldFile))
{
oldFile = new MonoDevelopSourceText(data);
}
var changes = text.GetTextChanges(oldFile).OrderByDescending(c => c.Span.Start).ToList();
int delta = 0;
if (!isOpen)
{
delta = ApplyChanges(projection, data, changes);
var formatter = CodeFormatterService.GetFormatter(data.MimeType);
var mp = GetMonoProject(CurrentSolution.GetProject(id.ProjectId));
string currentText = data.Text;
foreach (var change in changes)
{
delta -= change.Span.Length - change.NewText.Length;
var startOffset = change.Span.Start - delta;
if (projection != null)
{
int originalOffset;
if (projection.TryConvertFromProjectionToOriginal(startOffset, out originalOffset))
{
startOffset = originalOffset;
}
}
string str;
if (change.NewText.Length == 0)
{
str = formatter.FormatText(mp.Policies, currentText, TextSegment.FromBounds(Math.Max(0, startOffset - 1), Math.Min(data.Length, startOffset + 1)));
}
else
{
str = formatter.FormatText(mp.Policies, currentText, new TextSegment(startOffset, change.NewText.Length));
}
data.ReplaceText(startOffset, change.NewText.Length, str);
}
data.Save();
OnDocumentTextChanged(id, new MonoDevelopSourceText(data), PreservationMode.PreserveValue);
FileService.NotifyFileChanged(filePath);
}
else
{
var formatter = CodeFormatterService.GetFormatter(data.MimeType);
var documentContext = IdeApp.Workbench.Documents.FirstOrDefault(d => FilePath.PathComparer.Compare(d.FileName, filePath) == 0);
if (documentContext != null)
{
var editor = (TextEditor)data;
using (var undo = editor.OpenUndoGroup()) {
delta = ApplyChanges(projection, data, changes);
foreach (var change in changes)
{
delta -= change.Span.Length - change.NewText.Length;
var startOffset = change.Span.Start - delta;
if (projection != null)
{
int originalOffset;
if (projection.TryConvertFromProjectionToOriginal(startOffset, out originalOffset))
{
startOffset = originalOffset;
}
}
if (change.NewText.Length == 0)
{
formatter.OnTheFlyFormat(editor, documentContext, TextSegment.FromBounds(Math.Max(0, startOffset - 1), Math.Min(data.Length, startOffset + 1)));
}
else
{
formatter.OnTheFlyFormat(editor, documentContext, new TextSegment(startOffset, change.NewText.Length));
}
}
}
}
OnDocumentTextChanged(id, new MonoDevelopSourceText(data.CreateDocumentSnapshot()), PreservationMode.PreserveValue);
Runtime.RunInMainThread(() => {
if (IdeApp.Workbench != null)
{
foreach (var w in IdeApp.Workbench.Documents)
{
w.StartReparseThread();
}
}
});
}
}