/// <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;
}
