UIButton+WebCache.m
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/*
* This file is part of the SDWebImage package.
* (c) Olivier Poitrey <rs@dailymotion.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
#import "UIButton+WebCache.h"
#if SD_UIKIT
#import "objc/runtime.h"
#import "UIView+WebCacheOperation.h"
#import "UIView+WebCache.h"
static char imageURLStorageKey;
typedef NSMutableDictionary<NSString *, NSURL *> SDStateImageURLDictionary;
static inline NSString * imageURLKeyForState(UIControlState state) {
return [NSString stringWithFormat:@"image_%lu", (unsigned long)state];
}
static inline NSString * backgroundImageURLKeyForState(UIControlState state) {
return [NSString stringWithFormat:@"backgroundImage_%lu", (unsigned long)state];
}
@implementation UIButton (WebCache)
#pragma mark - Image
- (nullable NSURL *)sd_currentImageURL {
NSURL *url = self.imageURLStorage[imageURLKeyForState(self.state)];
if (!url) {
url = self.imageURLStorage[imageURLKeyForState(UIControlStateNormal)];
}
return url;
}
- (nullable NSURL *)sd_imageURLForState:(UIControlState)state {
return self.imageURLStorage[imageURLKeyForState(state)];
}
- (void)sd_setImageWithURL:(nullable NSURL *)url forState:(UIControlState)state {
[self sd_setImageWithURL:url forState:state placeholderImage:nil options:0 completed:nil];
}
- (void)sd_setImageWithURL:(nullable NSURL *)url forState:(UIControlState)state placeholderImage:(nullable UIImage *)placeholder {
[self sd_setImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:nil];
}
- (void)sd_setImageWithURL:(nullable NSURL *)url forState:(UIControlState)state placeholderImage:(nullable UIImage *)placeholder options:(SDWebImageOptions)options {
[self sd_setImageWithURL:url forState:state placeholderImage:placeholder options:options completed:nil];
}
- (void)sd_setImageWithURL:(nullable NSURL *)url forState:(UIControlState)state completed:(nullable SDExternalCompletionBlock)completedBlock {
[self sd_setImageWithURL:url forState:state placeholderImage:nil options:0 completed:completedBlock];
}
- (void)sd_setImageWithURL:(nullable NSURL *)url forState:(UIControlState)state placeholderImage:(nullable UIImage *)placeholder completed:(nullable SDExternalCompletionBlock)completedBlock {
[self sd_setImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:completedBlock];
}
- (void)sd_setImageWithURL:(nullable NSURL *)url
forState:(UIControlState)state
placeholderImage:(nullable UIImage *)placeholder
options:(SDWebImageOptions)options
completed:(nullable SDExternalCompletionBlock)completedBlock {
if (!url) {
[self.imageURLStorage removeObjectForKey:imageURLKeyForState(state)];
} else {
self.imageURLStorage[imageURLKeyForState(state)] = url;
}
__weak typeof(self)weakSelf = self;
[self sd_internalSetImageWithURL:url
placeholderImage:placeholder
options:options
operationKey:[NSString stringWithFormat:@"UIButtonImageOperation%@", @(state)]
setImageBlock:^(UIImage *image, NSData *imageData) {
[weakSelf setImage:image forState:state];
}
progress:nil
completed:completedBlock];
}
#pragma mark - Background image
- (nullable NSURL *)sd_currentBackgroundImageURL {
NSURL *url = self.imageURLStorage[backgroundImageURLKeyForState(self.state)];
if (!url) {
url = self.imageURLStorage[backgroundImageURLKeyForState(UIControlStateNormal)];
}
return url;
}
- (nullable NSURL *)sd_backgroundImageURLForState:(UIControlState)state {
return self.imageURLStorage[backgroundImageURLKeyForState(state)];
}
- (void)sd_setBackgroundImageWithURL:(nullable NSURL *)url forState:(UIControlState)state {
[self sd_setBackgroundImageWithURL:url forState:state placeholderImage:nil options:0 completed:nil];
}
- (void)sd_setBackgroundImageWithURL:(nullable NSURL *)url forState:(UIControlState)state placeholderImage:(nullable UIImage *)placeholder {
[self sd_setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:nil];
}
- (void)sd_setBackgroundImageWithURL:(nullable NSURL *)url forState:(UIControlState)state placeholderImage:(nullable UIImage *)placeholder options:(SDWebImageOptions)options {
[self sd_setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:options completed:nil];
}
- (void)sd_setBackgroundImageWithURL:(nullable NSURL *)url forState:(UIControlState)state completed:(nullable SDExternalCompletionBlock)completedBlock {
[self sd_setBackgroundImageWithURL:url forState:state placeholderImage:nil options:0 completed:completedBlock];
}
- (void)sd_setBackgroundImageWithURL:(nullable NSURL *)url forState:(UIControlState)state placeholderImage:(nullable UIImage *)placeholder completed:(nullable SDExternalCompletionBlock)completedBlock {
[self sd_setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:completedBlock];
}
- (void)sd_setBackgroundImageWithURL:(nullable NSURL *)url
forState:(UIControlState)state
placeholderImage:(nullable UIImage *)placeholder
options:(SDWebImageOptions)options
completed:(nullable SDExternalCompletionBlock)completedBlock {
if (!url) {
[self.imageURLStorage removeObjectForKey:backgroundImageURLKeyForState(state)];
} else {
self.imageURLStorage[backgroundImageURLKeyForState(state)] = url;
}
__weak typeof(self)weakSelf = self;
[self sd_internalSetImageWithURL:url
placeholderImage:placeholder
options:options
operationKey:[NSString stringWithFormat:@"UIButtonBackgroundImageOperation%@", @(state)]
setImageBlock:^(UIImage *image, NSData *imageData) {
[weakSelf setBackgroundImage:image forState:state];
}
progress:nil
completed:completedBlock];
}
- (void)sd_setImageLoadOperation:(id<SDWebImageOperation>)operation forState:(UIControlState)state {
[self sd_setImageLoadOperation:operation forKey:[NSString stringWithFormat:@"UIButtonImageOperation%@", @(state)]];
}
- (void)sd_cancelImageLoadForState:(UIControlState)state {
[self sd_cancelImageLoadOperationWithKey:[NSString stringWithFormat:@"UIButtonImageOperation%@", @(state)]];
}
- (void)sd_setBackgroundImageLoadOperation:(id<SDWebImageOperation>)operation forState:(UIControlState)state {
[self sd_setImageLoadOperation:operation forKey:[NSString stringWithFormat:@"UIButtonBackgroundImageOperation%@", @(state)]];
}
- (void)sd_cancelBackgroundImageLoadForState:(UIControlState)state {
[self sd_cancelImageLoadOperationWithKey:[NSString stringWithFormat:@"UIButtonBackgroundImageOperation%@", @(state)]];
}
- (SDStateImageURLDictionary *)imageURLStorage {
SDStateImageURLDictionary *storage = objc_getAssociatedObject(self, &imageURLStorageKey);
if (!storage) {
storage = [NSMutableDictionary dictionary];
objc_setAssociatedObject(self, &imageURLStorageKey, storage, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
return storage;
}
@end
#endif