public TextChangeMap(TextChange change, ColumnsLayout columnsLayout)
: base(change.Type, change.LineIndex, change.NewLine)
{
NewLineMap = new CobolTextLine(NewLine, columnsLayout);
}
/// <summary>
/// Send a change notification including all the text lines
/// </summary>
private void SendSocumentChangeEvent()
{
TextChangedEvent initialEvent = new TextChangedEvent();
int lineIndex = 0;
foreach (ITextLine textLine in Lines)
{
TextChange lineAdded = new TextChange(TextChangeType.LineInserted, lineIndex, textLine);
initialEvent.TextChanges.Add(lineAdded);
lineIndex++;
}
RaiseTextChanged(initialEvent);
}
/// <summary>
/// Send a change notification including all the text lines
/// </summary>
private void SendDocumentChangeEvent()
{
TextChangedEvent textLoadedEvent = new TextChangedEvent();
foreach (var line in lines)
{
TextChange textChange = new TextChange(TextChangeType.LineInserted, line.LineIndex, line);
textLoadedEvent.TextChanges.Add(textChange);
}
EventHandler<TextChangedEvent> textChangedEvent = TextChanged;
if (textChangedEvent != null)
{
textChangedEvent(this, textLoadedEvent);
}
}
public override void OnDidChangeTextDocument(DidChangeTextDocumentParams parameters)
{
Uri objUri = new Uri(parameters.uri);
if (objUri.IsFile)
{
string fileName = Path.GetFileName(objUri.LocalPath);
var fileCompiler = typeCobolWorkspace.OpenedFileCompilers[fileName];
#region Convert text changes format from multiline range replacement to single line updates
// THIS CONVERSION STILL NEEDS MORE WORK : much more complicated than you would think
TextChangedEvent textChangedEvent = new TextChangedEvent();
foreach (var contentChange in parameters.contentChanges)
{
// Split the text updated into distinct lines
string[] lineUpdates = null;
bool replacementTextStartsWithNewLine = false;
if(contentChange.text != null && contentChange.text.Length > 0)
{
replacementTextStartsWithNewLine = contentChange.text[0] == '\r' || contentChange.text[0] == '\n';
lineUpdates = contentChange.text.Split(new char[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
}
// Document cleared
if (contentChange.range == null)
{
var textChange = new TextChange(TextChangeType.DocumentCleared, 0, null);
textChangedEvent.TextChanges.Add(textChange);
if (lineUpdates != null)
{
for (int i = 0; i < lineUpdates.Length; i++)
{
textChange = new TextChange(TextChangeType.LineInserted, i, new TextLineSnapshot(i, lineUpdates[i], null));
textChangedEvent.TextChanges.Add(textChange);
}
}
}
// Document updated
else
{
// Check if the first line was inserted
int firstLineIndex = contentChange.range.start.line;
int firstLineChar = contentChange.range.start.character;
if (replacementTextStartsWithNewLine)
{
firstLineIndex++;
firstLineChar = 0;
}
// Check if the last line was deleted
int lastLineIndex = contentChange.range.end.line;
bool lastLineDeleted = false;
if (contentChange.range.end.line > contentChange.range.start.line && contentChange.range.end.character == 0)
{
lastLineIndex--;
lastLineDeleted = true;
}
if(!lastLineDeleted && contentChange.text.Length == 0)
{
lineUpdates = new string[0];
}
// Get original lines text before change
string originalFirstLineText = fileCompiler.CompilationResultsForProgram.CobolTextLines[contentChange.range.start.line].Text;
string originalLastLineText = originalFirstLineText;
if(lastLineIndex > firstLineIndex)
{
originalLastLineText = fileCompiler.CompilationResultsForProgram.CobolTextLines[lastLineIndex].Text;
}
// Text not modified at the beginning of the first replaced line
string startOfFirstLine = null;
if (firstLineChar > 0)
{
startOfFirstLine = originalFirstLineText.Substring(0, contentChange.range.start.character);
}
// Text not modified at the end of the last replaced line
string endOfLastLine = null;
if (!lastLineDeleted && contentChange.range.end.character < originalLastLineText.Length)
{
endOfLastLine = originalLastLineText.Substring(contentChange.range.end.character);
}
// Remove all the old lines
for (int i = firstLineIndex; i <= lastLineIndex; i++)
{
var textChange = new TextChange(TextChangeType.LineRemoved, firstLineIndex, null);
textChangedEvent.TextChanges.Add(textChange);
}
// Insert the updated lines
if (!(startOfFirstLine == null && lineUpdates == null && endOfLastLine == null))
{
int lineUpdatesCount = (lineUpdates != null && lineUpdates.Length > 0) ? lineUpdates.Length : 1;
for (int i = 0; i < lineUpdatesCount; i++)
{
string newLine = (lineUpdates != null && lineUpdates.Length > 0) ? lineUpdates[i] : String.Empty;
if (i == 0)
{
newLine = startOfFirstLine + newLine;
}
if(i == lineUpdatesCount - 1)
{
newLine = newLine + endOfLastLine;
if (lastLineDeleted) break;
}
var textChange = new TextChange(TextChangeType.LineInserted, firstLineIndex + i, new TextLineSnapshot(firstLineIndex + i, newLine, null));
textChangedEvent.TextChanges.Add(textChange);
}
}
}
}
#endregion
// Update the source file with the computed text changes
typeCobolWorkspace.UpdateSourceFile(fileName, textChangedEvent);
// DEBUG information
RemoteConsole.Log("Udpated source file : " + fileName);
foreach(var textChange in textChangedEvent.TextChanges)
{
RemoteConsole.Log(" - " + textChange.ToString());
}
}
}
