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EGOImageLoader.h
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EGOImageLoader.h
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//
// EGOImageLoader.h
// EGOImageLoading
//
// Created by Shaun Harrison on 9/15/09.
// Copyright (c) 2009-2010 enormego
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
#import <Foundation/Foundation.h>
#ifndef __EGOIL_USE_BLOCKS
#define __EGOIL_USE_BLOCKS 0
#endif
#ifndef __EGOIL_USE_NOTIF
#define __EGOIL_USE_NOTIF 1
#endif
@protocol EGOImageLoaderObserver;
@interface EGOImageLoader : NSObject/*<NSURLConnectionDelegate>*/ {
@private
NSDictionary* _currentConnections;
NSMutableDictionary* currentConnections;
#if __EGOIL_USE_BLOCKS
dispatch_queue_t _operationQueue;
#endif
NSLock* connectionsLock;
}
+ (EGOImageLoader*)sharedImageLoader;
- (BOOL)isLoadingImageURL:(NSURL*)aURL;
#if __EGOIL_USE_NOTIF
- (void)loadImageForURL:(NSURL*)aURL observer:(id<EGOImageLoaderObserver>)observer;
- (UIImage*)imageForURL:(NSURL*)aURL shouldLoadWithObserver:(id<EGOImageLoaderObserver>)observer;
- (void)removeObserver:(id<EGOImageLoaderObserver>)observer;
- (void)removeObserver:(id<EGOImageLoaderObserver>)observer forURL:(NSURL*)aURL;
#endif
#if __EGOIL_USE_BLOCKS
- (void)loadImageForURL:(NSURL*)aURL completion:(void (^)(UIImage* image, NSURL* imageURL, NSError* error))completion;
- (void)loadImageForURL:(NSURL*)aURL style:(NSString*)style styler:(UIImage* (^)(UIImage* image))styler completion:(void (^)(UIImage* image, NSURL* imageURL, NSError* error))completion;
#endif
- (BOOL)hasLoadedImageURL:(NSURL*)aURL;
- (void)cancelLoadForURL:(NSURL*)aURL;
- (void)clearCacheForURL:(NSURL*)aURL;
- (void)clearCacheForURL:(NSURL*)aURL style:(NSString*)style;
@property(nonatomic,retain) NSDictionary* currentConnections;
@end
@protocol EGOImageLoaderObserver<NSObject>
@optional
- (void)imageLoaderDidLoad:(NSNotification*)notification; // Object will be EGOImageLoader, userInfo will contain imageURL and image
- (void)imageLoaderDidFailToLoad:(NSNotification*)notification; // Object will be EGOImageLoader, userInfo will contain error
@end