PsiFile (final PsiFile file, final Editor editor) { if (file == null) return null; int offset = editor.getCaretModel().getOffset(); if (offset == editor.getDocument().getTextLength()) offset--; if (offset < 0) return null; PsiElement leafElement = file.findElementAt(offset); if (leafElement == null) return null; if (leafElement.getLanguage() instanceof DependentLanguage) { leafElement = file.getViewProvider().findElementAt(offset, file.getViewProvider().getBaseLanguage()); if (leafElement == null) return null; } ASTNode node = leafElement.getNode(); if (node == null) return null; return (PsiFile)PsiUtilBase.getRoot(node).getPsi(); }