PSTDelegateProxy
A simple proxy that forwards optional methods to delegates - less boilerplate in your code!
When calling optional delegates, the regular pattern is to check using respondsToSelector:, then actually call the method. This is straightforward and easy to understand:
id<PSPDFResizableViewDelegate> delegate = self.delegate;
if ([delegate respondsToSelector:@selector(resizableViewDidBeginEditing:)]) {
[delegate resizableViewDidBeginEditing:self];
}What we really want is something like this:
[self.delegateProxy resizableViewDidBeginEditing:self];Read more on my blog: Smart Proxy Delegation
License
MIT License.