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FBRequest+Delegate.m
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FBRequest+Delegate.m
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/*
* Copyright 2012 Chris Ross - hiddenMemory Ltd - chris@hiddenmemory.co.uk
* Copyright 2012 Kieran Gutteridge - IntoHand Ltd - kieran.gutteridge@intohand.com
* Copyright 2010 Facebook
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import "FBRequest+Delegate.h"
#import <objc/runtime.h>
@implementation FBRequest (Delegate)
- (void)setDelegate:(id<FBRequestDelegate>)delegate {
__block FBRequest *weakSelf = self;
id oldDelegate = objc_getAssociatedObject(self, _cmd);
objc_setAssociatedObject(self, _cmd, delegate, OBJC_ASSOCIATION_ASSIGN);
if (oldDelegate) return;
if( [weakSelf.delegate respondsToSelector:@selector(request:didLoad:)] ) {
[self addCompletionHandler:^(FBRequest *request,id object) {
[weakSelf.delegate request:request didLoad:object];
}];
}
if( [weakSelf.delegate respondsToSelector:@selector(request:didFailWithError:)] ) {
[self addErrorHandler:^(FBRequest *request, NSError *error) {
[weakSelf.delegate request:weakSelf didFailWithError:error];
}];
}
if( [weakSelf.delegate respondsToSelector:@selector(request:didLoadRawResponse:)] ) {
[self addRawHandler:^(FBRequest *request, NSData *data) {
[weakSelf.delegate request:weakSelf didLoadRawResponse:data];
}];
}
if( [weakSelf.delegate respondsToSelector:@selector(request:didReceiveResponse:)] ) {
[self addResponseHandler:^(FBRequest *request, NSURLResponse *response) {
[weakSelf.delegate request:weakSelf didReceiveResponse:response];
}];
}
if( [weakSelf.delegate respondsToSelector:@selector(requestLoading:)] ) {
[self addLoadHandler:^(FBRequest *request) {
[weakSelf.delegate requestLoading:weakSelf];
}];
}
}
- (id<FBRequestDelegate>)delegate {
return objc_getAssociatedObject(self, @selector(setDelegate:));
}
@end