从IJavaEditorTextHover获取当前项目路径

Question

i am developing an eclipse plugin and i need the path to the project of the user. I wnat to obtain it on my class which implements org.eclipse.jdt.ui.text.java.hover.IJavaEditorTextHover

I have tried doing:

IEditorPart editorPart = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActiveEditor(); 

String activeProjectName = "";
if (editorPart != null) 
{ 
    IFileEditorInput input = (IFileEditorInput)editorPart.getEditorInput() ; 
    IFile file = input.getFile(); 
    IProject activeProject = file.getProject(); 
    activeProjectName = activeProject .getName(); 
} 
IProject project = workspace.getRoot().getProject(activeProjectName);

But when i do that on my my class which implements org.eclipse.jdt.ui.text.java.hover.IJavaEditorTextHover, i keep getting nullpointerExcetion on

PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActiveEditor(); 

I have tried this method before, but on a class that extends AbstractHandler and it worked. Why can´ti get IProject from IJavaEditorTextHover?

Answer 1

IJavaEditorTextHover has a setEditor(IEditorPart editor) method so you can use that rather than trying to find the active editor.

Your current code may be looking for an active workbench or page or editor before there actually is one.