152 lines
5.8 KiB
Objective-C
152 lines
5.8 KiB
Objective-C
/*
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* This file is part of the SDWebImage package.
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* (c) Olivier Poitrey <rs@dailymotion.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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#import "UIButton+WebCache.h"
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#import "objc/runtime.h"
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static char imageURLStorageKey;
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static char operationKey;
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@implementation UIButton (WebCache)
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- (NSURL *)currentImageURL;
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{
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NSURL *url = self.imageURLStorage[@(self.state)];
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if (!url)
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{
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url = self.imageURLStorage[@(UIControlStateNormal)];
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}
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return url;
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}
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- (NSURL *)imageURLForState:(UIControlState)state;
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{
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return self.imageURLStorage[@(state)];
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}
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- (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state
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{
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[self setImageWithURL:url forState:state placeholderImage:nil options:0 completed:nil];
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}
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- (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder {
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[self setImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:nil];
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}
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- (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options {
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[self setImageWithURL:url forState:state placeholderImage:placeholder options:options completed:nil];
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}
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- (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state completed:(SDWebImageCompletedBlock)completedBlock {
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[self setImageWithURL:url forState:state placeholderImage:nil options:0 completed:completedBlock];
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}
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- (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletedBlock)completedBlock {
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[self setImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:completedBlock];
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}
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- (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletedBlock)completedBlock {
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[self setImage:placeholder forState:state];
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[self cancelCurrentImageLoad];
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if (!url) {
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[self.imageURLStorage removeObjectForKey:@(state)];
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return;
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}
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self.imageURLStorage[@(state)] = url;
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__weak UIButton *wself = self;
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id <SDWebImageOperation> operation = [SDWebImageManager.sharedManager downloadWithURL:url options:options progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished) {
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if (!wself) return;
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dispatch_main_sync_safe(^{
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__strong UIButton *sself = wself;
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if (!sself) return;
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if (image) {
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[sself setImage:image forState:state];
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}
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if (completedBlock && finished) {
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completedBlock(image, error, cacheType);
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}
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});
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}];
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objc_setAssociatedObject(self, &operationKey, operation, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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- (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state {
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[self setBackgroundImageWithURL:url forState:state placeholderImage:nil options:0 completed:nil];
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}
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- (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder {
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[self setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:nil];
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}
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- (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options {
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[self setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:options completed:nil];
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}
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- (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state completed:(SDWebImageCompletedBlock)completedBlock {
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[self setBackgroundImageWithURL:url forState:state placeholderImage:nil options:0 completed:completedBlock];
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}
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- (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletedBlock)completedBlock {
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[self setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:completedBlock];
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}
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- (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletedBlock)completedBlock {
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[self cancelCurrentImageLoad];
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[self setBackgroundImage:placeholder forState:state];
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if (url) {
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__weak UIButton *wself = self;
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id <SDWebImageOperation> operation = [SDWebImageManager.sharedManager downloadWithURL:url options:options progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished) {
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if (!wself) return;
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dispatch_main_sync_safe(^{
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__strong UIButton *sself = wself;
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if (!sself) return;
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if (image) {
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[sself setBackgroundImage:image forState:state];
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}
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if (completedBlock && finished) {
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completedBlock(image, error, cacheType);
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}
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});
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}];
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objc_setAssociatedObject(self, &operationKey, operation, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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}
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- (void)cancelCurrentImageLoad {
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// Cancel in progress downloader from queue
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id <SDWebImageOperation> operation = objc_getAssociatedObject(self, &operationKey);
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if (operation) {
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[operation cancel];
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objc_setAssociatedObject(self, &operationKey, nil, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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}
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- (NSMutableDictionary *)imageURLStorage;
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{
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NSMutableDictionary *storage = objc_getAssociatedObject(self, &imageURLStorageKey);
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if (!storage)
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{
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storage = [NSMutableDictionary dictionary];
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objc_setAssociatedObject(self, &imageURLStorageKey, storage, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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return storage;
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}
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@end
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