Is there a Visual Studio 2010 file preview tab plugin? - visual-studio-2010

Question

Is there a Visual Studio 2010 plugin for the new "preview tab" feature in Visual Studio 2012?

Answer 1

I've tried to do it by myself, but I have no expierience in doing VS extensions nor using EnvDTE API.
I've followed Building and publishing an extension for Visual Studio 2010 to create a new Visual Studio 2010 extension.
Then I added a Tools menu item with the VSPackage Builder designer, and used this code to try to imitate the behaviour.
I am not able to:
Determine whenever a file is selected, so I have to do a loop.
Open a file in already existing window.
Change the window to be shown
at the right.
I leave the code here, just in case someone else is interested on creating an extension. Hope (s)he has a better knowledge of VS Extensibility.
[Guid(GuidList.guidPreviewDocumentTabPkgString)]
public class PreviewDocumentTabPackage : PreviewDocumentTabPackageBase
{
private DTE dte;
private Document currentTab;
protected override void Initialize()
{
base.Initialize();
this.dte = this.GetService(typeof(_DTE)) as DTE;
if (this.dte == null)
{
throw new ArgumentNullException("dte");
}
var applicationObject = (DTE2)GetGlobalService(typeof(SDTE));
var solutionExplorer = applicationObject.ToolWindows.SolutionExplorer;
System.Threading.Tasks.Task.Factory.StartNew(() =>
{
object currentItem = null;
while (true) // To be improved
{
// Get selected items
var items = solutionExplorer.SelectedItems as Array;
// Only do logic if there is one file selected, no preview for multiple files.
if (items != null &&
items.Length == 1)
{
var item = items.GetValue(0);
if (currentItem == null)
{
currentItem = item;
}
else
{
// Only show preview if the file is "new".
if (item != currentItem)
{
currentItem = item;
// Determine if is a c# file.
var realItem = (UIHierarchyItem)currentItem;
var itemName = realItem.Name;
if (itemName.EndsWith(".cs"))
{
// Get the file
var projectItem = (ProjectItem)realItem.Object;
var projectItemPath = projectItem.Properties.Item("FullPath")
.Value.ToString();
// No already opened file.
if (currentTab == null)
{
// Open the file and get the window.
this.currentTab = this.dte.Documents.Open(projectItemPath);
}
else
{
// Todo: Open the file in the this.currentTab window.
}
}
}
}
}
// Avoid flooding
System.Threading.Thread.Sleep(100);
}
});
}
}