UIButton+WebCache.m
5.84 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
/*
* 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"
#import "objc/runtime.h"
static char imageURLStorageKey;
static char operationKey;
@implementation UIButton (WebCache)
- (NSURL *)currentImageURL;
{
NSURL *url = self.imageURLStorage[@(self.state)];
if (!url)
{
url = self.imageURLStorage[@(UIControlStateNormal)];
}
return url;
}
- (NSURL *)imageURLForState:(UIControlState)state;
{
return self.imageURLStorage[@(state)];
}
- (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state
{
[self setImageWithURL:url forState:state placeholderImage:nil options:0 completed:nil];
}
- (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder {
[self setImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:nil];
}
- (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options {
[self setImageWithURL:url forState:state placeholderImage:placeholder options:options completed:nil];
}
- (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state completed:(SDWebImageCompletedBlock)completedBlock {
[self setImageWithURL:url forState:state placeholderImage:nil options:0 completed:completedBlock];
}
- (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletedBlock)completedBlock {
[self setImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:completedBlock];
}
- (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletedBlock)completedBlock {
[self setImage:placeholder forState:state];
[self cancelCurrentImageLoad];
if (!url) {
[self.imageURLStorage removeObjectForKey:@(state)];
return;
}
self.imageURLStorage[@(state)] = url;
__weak UIButton *wself = self;
id <SDWebImageOperation> operation = [SDWebImageManager.sharedManager downloadWithURL:url options:options progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished) {
if (!wself) return;
dispatch_main_sync_safe(^{
__strong UIButton *sself = wself;
if (!sself) return;
if (image) {
[sself setImage:image forState:state];
}
if (completedBlock && finished) {
completedBlock(image, error, cacheType);
}
});
}];
objc_setAssociatedObject(self, &operationKey, operation, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
- (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state {
[self setBackgroundImageWithURL:url forState:state placeholderImage:nil options:0 completed:nil];
}
- (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder {
[self setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:nil];
}
- (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options {
[self setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:options completed:nil];
}
- (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state completed:(SDWebImageCompletedBlock)completedBlock {
[self setBackgroundImageWithURL:url forState:state placeholderImage:nil options:0 completed:completedBlock];
}
- (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletedBlock)completedBlock {
[self setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:completedBlock];
}
- (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletedBlock)completedBlock {
[self cancelCurrentImageLoad];
[self setBackgroundImage:placeholder forState:state];
if (url) {
__weak UIButton *wself = self;
id <SDWebImageOperation> operation = [SDWebImageManager.sharedManager downloadWithURL:url options:options progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished) {
if (!wself) return;
dispatch_main_sync_safe(^{
__strong UIButton *sself = wself;
if (!sself) return;
if (image) {
[sself setBackgroundImage:image forState:state];
}
if (completedBlock && finished) {
completedBlock(image, error, cacheType);
}
});
}];
objc_setAssociatedObject(self, &operationKey, operation, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
}
- (void)cancelCurrentImageLoad {
// Cancel in progress downloader from queue
id <SDWebImageOperation> operation = objc_getAssociatedObject(self, &operationKey);
if (operation) {
[operation cancel];
objc_setAssociatedObject(self, &operationKey, nil, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
}
- (NSMutableDictionary *)imageURLStorage;
{
NSMutableDictionary *storage = objc_getAssociatedObject(self, &imageURLStorageKey);
if (!storage)
{
storage = [NSMutableDictionary dictionary];
objc_setAssociatedObject(self, &imageURLStorageKey, storage, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
return storage;
}
@end