如何从Eclipse插件中获取包浏览器中的选定节点

Question

I'm writing an Eclipse command plugin and want to retrieve the currently selected node in the package explorer view. I want to be able to get the absolute filepath, where the selected node resides on the filesystem (ie c:\\eclipse\\test.html), from the returned result.

How do I do this ?

Answer 1

The first step is to get a selection service, eg from any view or editor like this:

ISelectionService service = getSite().getWorkbenchWindow()
            .getSelectionService();

Or, as VonC wrote , you could get it via the PlatformUI, if you are neither in a view or an editor.

Then, get the selection for the Package Explorer and cast it to an IStructuredSelection:

IStructuredSelection structured = (IStructuredSelection) service
            .getSelection("org.eclipse.jdt.ui.PackageExplorer");

From that, you can get your selected IFile:

IFile file = (IFile) structured.getFirstElement();

Now to get the full path, you will have to get the location for the IFile:

IPath path = file.getLocation();

Which you then can finally use to get the real full path to your file (among other things):

System.out.println(path.toPortableString());

You can find more information on the selection service here: Using the Selection Service .

Answer 2

The code would be like:

IWorkbenchWindow window =
    PlatformUI.getWorkbench().getActiveWorkbenchWindow();
ISelection selection = window.getSelectionService().getSelection("org.eclipse.jdt.ui.PackageExplorer");

You view an example in an Action like this LuaFileWizardAction class .