@Override public void setInput(RefactoringStatusContext context) { if (context instanceof DartStatusContext) { DartStatusContext jsc = (DartStatusContext) context; IDocument document = null; { CompilationUnit cunit = jsc.getCompilationUnit(); if (cunit.isWorkingCopy()) { try { document = newDocument(cunit.getSource()); } catch (DartModelException e) { // document is null which is a valid input. } } else { IEditorInput editorInput = new FileEditorInput((IFile) cunit.getResource()); document = getDocument( DartToolsPlugin.getDefault().getCompilationUnitDocumentProvider(), editorInput); } if (document == null) { document = new Document(RefactoringMessages.DartStatusContextViewer_no_source_available); } updateTitle(cunit); } setInput(document, createRegion(jsc.getSourceRange())); } else if (context instanceof DartStringStatusContext) { updateTitle(null); DartStringStatusContext sc = (DartStringStatusContext) context; setInput(newDocument(sc.getSource()), createRegion(sc.getSourceRange())); } }