public override Declarations GetDeclarations(MVTI.IVsTextView view,
int line,
int col,
TokenInfo info,
ParseReason reason)
{
return null;
}
public override int SetTextBuffer(VSTextManagerInterop.IVsTextLines pTextBuffer)
{
var hr = VSConstants.S_OK;
_underlyingBuffer = pTextBuffer;
return hr;
}
// this function is fired only for top most transactions
//private bool CanCommitTransaction(Transaction tx)
//{
// Debug.Assert(tx != null, "tx should not be null");
// if (tx.Context.ContextInfo.ContainsKey(EntityDesignerViewModel.TransactionCancelledGuid))
// {
// return false;
// }
// return true;
//}
/// <summary>
/// Loads the text into the buffer. This method will allocate a VSTextManagerInterop::IVsTextLines will be created
/// and loaded with the model
/// </summary>
/// <param name="ppTextBuffer">newly created buffer loaded with the model file (in XML string form)</param>
/// <returns>VSConstants.S_OK if operation successful</returns>
public override int GetTextBuffer(out VSTextManagerInterop.IVsTextLines ppTextBuffer)
{
if (VsBuffer == null)
{
if (!CreateAndLoadBuffer())
{
ppTextBuffer = null;
return VSConstants.E_FAIL;
}
}
ppTextBuffer = VsBuffer;
return VSConstants.S_OK;
}
public override string Goto(VSConstants.VSStd97CmdID cmd, MVTI.IVsTextView textView, int line, int col, out MVTI.TextSpan span)
{
span = new MVTI.TextSpan();
return null;
}
public override string GetDataTipText(int line, int col, out MVTI.TextSpan span)
{
span = new MVTI.TextSpan();
return null;
}
public static string GetAllTextFromTextLines(VsTextMgr.IVsTextLines textLines)
{
string content = null;
if (textLines != null)
{
int line, column;
var result = textLines.GetLastLineIndex(out line, out column);
if (result == VSConstants.S_OK)
{
result = textLines.GetLineText(0, 0, line, column, out content);
if (result != VSConstants.S_OK)
{
content = null;
}
}
}
return content;
}
/// <summary>
/// Open the file in invisible editor in RDT, and get text buffer from it.
/// </summary>
/// <remarks>
/// This method created for refactoring usage, refactoring will work on all kinds of
/// docdata, not only SqlEditorDocData. If change this method, please get let LiangZ
/// know.
/// </remarks>
/// <param name="fullPathFileName">File name with full path.</param>
/// <param name="project">the hierarchy for the document</param>
/// <param name="spEditor">The result invisible editor.</param>
/// <param name="textLines">The result text buffer.</param>
/// <returns>True, if the file is opened correctly in invisible editor.</returns>
public bool TryGetTextLinesAndInvisibleEditor(
string fullPathFileName, VsShell.IVsProject project, out VsShell.IVsInvisibleEditor spEditor,
out VsTextMgr.IVsTextLines textLines)
{
spEditor = null;
textLines = null;
// Need to open this file. Use the invisible editor manager to do so.
VsShell.IVsInvisibleEditorManager invisibleEditorMgr;
var ppDocData = IntPtr.Zero;
bool result;
var iidIVsTextLines = typeof(VsTextMgr.IVsTextLines).GUID;
try
{
invisibleEditorMgr = _invisibleEditorManager;
NativeMethods.ThrowOnFailure(
invisibleEditorMgr.RegisterInvisibleEditor(
fullPathFileName, project, (uint)VsShell._EDITORREGFLAGS.RIEF_ENABLECACHING, null, out spEditor));
if (spEditor != null)
{
var hr = spEditor.GetDocData(0, ref iidIVsTextLines, out ppDocData);
if (hr == VSConstants.S_OK
&& ppDocData != IntPtr.Zero)
{
textLines = Marshal.GetTypedObjectForIUnknown(ppDocData, typeof(VsTextMgr.IVsTextLines)) as VsTextMgr.IVsTextLines;
result = true;
}
else
{
result = false;
}
}
else
{
result = false;
}
}
finally
{
if (ppDocData != IntPtr.Zero)
{
Marshal.Release(ppDocData);
}
}
return result;
}
public bool TryGetTextLinesAndInvisibleEditor(
string fullPathFileName, out VsShell.IVsInvisibleEditor spEditor, out VsTextMgr.IVsTextLines textLines)
{
return TryGetTextLinesAndInvisibleEditor(fullPathFileName, null, out spEditor, out textLines);
}
