public static boolean isDeleteAvailable(final Object[] objects) throws ModelException {
if (objects.length != 0) {
final IResource[] resources = RefactoringAvailabilityTester.getResources(objects);
final IModelElement[] elements = RefactoringAvailabilityTester.getScriptElements(objects);
if (objects.length != resources.length + elements.length) return false;
for (int index = 0; index < resources.length; index++) {
if (!isDeleteAvailable(resources[index])) return false;
}
for (int index = 0; index < elements.length; index++) {
if (!isDeleteAvailable(elements[index])) return false;
}
return true;
}
return false;
}
public static boolean isDeleteAvailable(final IModelElement element) throws ModelException {
if (!element.exists()) return false;
if (element instanceof IScriptModel || element instanceof IScriptProject) return false;
if (element.getParent() != null && element.getParent().isReadOnly()) return false;
if (element instanceof IProjectFragment) {
IProjectFragment root = (IProjectFragment) element;
if (root.isExternal() || Checks.isBuildpathDelete(root)) // TODO
// rename
// isClasspathDelete
return false;
}
if (element.getResource() == null
&& !RefactoringAvailabilityTester.isWorkingCopyElement(element)) return false;
// if (element instanceof IMember && ((IMember) element).isBinary())
// return false;
if (ReorgUtils.isDeletedFromEditor(element)) return false;
return true;
}