public boolean isEnabled(AnActionEvent e) {
PsiElement psiElement = e.getData(LangDataKeys.PSI_ELEMENT);
if (psiElement == null || !(psiElement instanceof PsiDirectory)) {
// Can be used only on package
return false;
}
VirtualFile targetDir = ((PsiDirectory) psiElement).getVirtualFile();
boolean isUnderSourceRoot = false;
if (psiElement instanceof MPSPsiModel) {
isUnderSourceRoot = true;
} else {
Module m = e.getData(LangDataKeys.MODULE);
VirtualFile[] sourceRoots = ModuleRootManager.getInstance(m).getSourceRoots(true);
for (VirtualFile root : sourceRoots) {
if (targetDir.getPath().equals(root.getPath())) {
// Can't be source or test folder
return false;
}
isUnderSourceRoot =
isUnderSourceRoot || FileUtil.isSubPath(root.getPath(), targetDir.getPath());
}
}
return isUnderSourceRoot
&& myOperationContext != null
&& (myModelDescriptor != null || myNewModel)
&& myProject != null;
}
