internal Result Save(ITextBuffer textBuffer)
{
// In order to save the ITextBuffer we need to get a document cookie for it. The only way I'm
// aware of is to use the path moniker which is available for the accompanying ITextDocment
// value.
//
// In many types of files (.cs, .vb, .cpp) there is usually a 1-1 mapping between ITextBuffer
// and the ITextDocument. But in any file type where an IProjectionBuffer is common (.js,
// .aspx, etc ...) this mapping breaks down. To get it back we must visit all of the
// source buffers for a projection and individually save them
var result = Result.Success;
foreach (var sourceBuffer in TextBufferUtil.GetSourceBuffersRecursive(textBuffer))
{
// The inert buffer doesn't need to be saved. It's used as a fake buffer by web applications
// in order to render projected content
if (sourceBuffer.ContentType == _textBufferFactoryService.InertContentType)
{
continue;
}
var sourceResult = SaveCore(sourceBuffer);
if (sourceResult.IsError)
{
result = sourceResult;
}
}
return(result);
}
/// <summary>
/// Do a save operation using the <see cref="IOleCommandTarget"/> approach if this is a buffer
/// for the active text view. Returns null when this operation couldn't be performed and a
/// non-null value when the operation was actually executed.
/// </summary>
private bool?SaveActiveTextView(ITextBuffer textBuffer)
{
IWpfTextView activeTextView;
if (!_vsAdapter.TryGetActiveTextView(out activeTextView) ||
!TextBufferUtil.GetSourceBuffersRecursive(activeTextView.TextBuffer).Contains(textBuffer))
{
return(null);
}
return(SafeExecuteCommand(activeTextView, "File.SaveSelectedItems"));
}
public virtual bool IsDirty(ITextBuffer textBuffer)
{
// If this is an IProjectionBuffer then we need to dig into the actual ITextBuffer values
// which make it up.
foreach (var sourceTextBuffer in TextBufferUtil.GetSourceBuffersRecursive(textBuffer))
{
// The inert buffer doesn't need to be considered. It's used as a fake buffer by web applications
// in order to render projected content
if (sourceTextBuffer.ContentType == _textBufferFactoryService.InertContentType)
{
continue;
}
if (_textDocumentFactoryService.TryGetTextDocument(sourceTextBuffer, out ITextDocument document) && document.IsDirty)
{
return(true);
}
}
return(false);
}
