public static boolean validElement(@NotNull PsiElement element) {
if (element instanceof PsiFile) return true;
if (!element.isPhysical()) return false;
final RefactoringSupportProvider provider =
LanguageRefactoringSupport.INSTANCE.forLanguage(element.getLanguage());
return provider.isSafeDeleteAvailable(element);
}
@Override
public boolean doInplaceRenameFor(PsiElement element, PsiElement context) {
if (!element.isWritable() || element.getContainingFile() == null) return false;
final RefactoringSupportProvider realProvider =
ContextProvider.getContextProvider(element).getRefactoringSupportProvider();
return realProvider != null && realProvider.doInplaceRenameFor(element, context);
}
@Override
public boolean isSafeDeleteAvailable(PsiElement element) {
if (!element.isWritable() || element.getContainingFile() == null) return false;
final RefactoringSupportProvider realProvider =
ContextProvider.getContextProvider(element).getRefactoringSupportProvider();
return realProvider != null && realProvider.isSafeDeleteAvailable(element);
}
@Override
protected boolean isAvailable(PsiElement element, Editor editor, PsiFile file) {
final PsiElement nameSuggestionContext = file.findElementAt(editor.getCaretModel().getOffset());
if (element == null && LookupManager.getActiveLookup(editor) != null) {
element = PsiTreeUtil.getParentOfType(nameSuggestionContext, PsiNamedElement.class);
}
final RefactoringSupportProvider supportProvider =
element != null
? LanguageRefactoringSupport.INSTANCE.forLanguage(element.getLanguage())
: null;
return editor.getSettings().isVariableInplaceRenameEnabled()
&& supportProvider != null
&& supportProvider.isMemberInplaceRenameAvailable(element, nameSuggestionContext);
}