mirror of
https://github.com/samuelclay/NewsBlur.git
synced 2025-08-05 16:58:59 +00:00
302 lines
12 KiB
Objective-C
Executable file
302 lines
12 KiB
Objective-C
Executable file
// UIButton+AFNetworking.m
|
||
// Copyright (c) 2011–2016 Alamofire Software Foundation ( http://alamofire.org/ )
|
||
//
|
||
// 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 "UIButton+AFNetworking.h"
|
||
|
||
#import <objc/runtime.h>
|
||
|
||
#if TARGET_OS_IOS || TARGET_OS_TV
|
||
|
||
#import "UIImageView+AFNetworking.h"
|
||
#import "AFImageDownloader.h"
|
||
|
||
@interface UIButton (_AFNetworking)
|
||
@end
|
||
|
||
@implementation UIButton (_AFNetworking)
|
||
|
||
#pragma mark -
|
||
|
||
static char AFImageDownloadReceiptNormal;
|
||
static char AFImageDownloadReceiptHighlighted;
|
||
static char AFImageDownloadReceiptSelected;
|
||
static char AFImageDownloadReceiptDisabled;
|
||
|
||
static const char * af_imageDownloadReceiptKeyForState(UIControlState state) {
|
||
switch (state) {
|
||
case UIControlStateHighlighted:
|
||
return &AFImageDownloadReceiptHighlighted;
|
||
case UIControlStateSelected:
|
||
return &AFImageDownloadReceiptSelected;
|
||
case UIControlStateDisabled:
|
||
return &AFImageDownloadReceiptDisabled;
|
||
case UIControlStateNormal:
|
||
default:
|
||
return &AFImageDownloadReceiptNormal;
|
||
}
|
||
}
|
||
|
||
- (AFImageDownloadReceipt *)af_imageDownloadReceiptForState:(UIControlState)state {
|
||
return (AFImageDownloadReceipt *)objc_getAssociatedObject(self, af_imageDownloadReceiptKeyForState(state));
|
||
}
|
||
|
||
- (void)af_setImageDownloadReceipt:(AFImageDownloadReceipt *)imageDownloadReceipt
|
||
forState:(UIControlState)state
|
||
{
|
||
objc_setAssociatedObject(self, af_imageDownloadReceiptKeyForState(state), imageDownloadReceipt, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
|
||
}
|
||
|
||
#pragma mark -
|
||
|
||
static char AFBackgroundImageDownloadReceiptNormal;
|
||
static char AFBackgroundImageDownloadReceiptHighlighted;
|
||
static char AFBackgroundImageDownloadReceiptSelected;
|
||
static char AFBackgroundImageDownloadReceiptDisabled;
|
||
|
||
static const char * af_backgroundImageDownloadReceiptKeyForState(UIControlState state) {
|
||
switch (state) {
|
||
case UIControlStateHighlighted:
|
||
return &AFBackgroundImageDownloadReceiptHighlighted;
|
||
case UIControlStateSelected:
|
||
return &AFBackgroundImageDownloadReceiptSelected;
|
||
case UIControlStateDisabled:
|
||
return &AFBackgroundImageDownloadReceiptDisabled;
|
||
case UIControlStateNormal:
|
||
default:
|
||
return &AFBackgroundImageDownloadReceiptNormal;
|
||
}
|
||
}
|
||
|
||
- (AFImageDownloadReceipt *)af_backgroundImageDownloadReceiptForState:(UIControlState)state {
|
||
return (AFImageDownloadReceipt *)objc_getAssociatedObject(self, af_backgroundImageDownloadReceiptKeyForState(state));
|
||
}
|
||
|
||
- (void)af_setBackgroundImageDownloadReceipt:(AFImageDownloadReceipt *)imageDownloadReceipt
|
||
forState:(UIControlState)state
|
||
{
|
||
objc_setAssociatedObject(self, af_backgroundImageDownloadReceiptKeyForState(state), imageDownloadReceipt, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
|
||
}
|
||
|
||
@end
|
||
|
||
#pragma mark -
|
||
|
||
@implementation UIButton (AFNetworking)
|
||
|
||
+ (AFImageDownloader *)sharedImageDownloader {
|
||
|
||
return objc_getAssociatedObject(self, @selector(sharedImageDownloader)) ?: [AFImageDownloader defaultInstance];
|
||
}
|
||
|
||
+ (void)setSharedImageDownloader:(AFImageDownloader *)imageDownloader {
|
||
objc_setAssociatedObject(self, @selector(sharedImageDownloader), imageDownloader, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
|
||
}
|
||
|
||
#pragma mark -
|
||
|
||
- (void)setImageForState:(UIControlState)state
|
||
withURL:(NSURL *)url
|
||
{
|
||
[self setImageForState:state withURL:url placeholderImage:nil];
|
||
}
|
||
|
||
- (void)setImageForState:(UIControlState)state
|
||
withURL:(NSURL *)url
|
||
placeholderImage:(UIImage *)placeholderImage
|
||
{
|
||
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
|
||
[request addValue:@"image/*" forHTTPHeaderField:@"Accept"];
|
||
|
||
[self setImageForState:state withURLRequest:request placeholderImage:placeholderImage success:nil failure:nil];
|
||
}
|
||
|
||
- (void)setImageForState:(UIControlState)state
|
||
withURLRequest:(NSURLRequest *)urlRequest
|
||
placeholderImage:(nullable UIImage *)placeholderImage
|
||
success:(nullable void (^)(NSURLRequest *request, NSHTTPURLResponse * _Nullable response, UIImage *image))success
|
||
failure:(nullable void (^)(NSURLRequest *request, NSHTTPURLResponse * _Nullable response, NSError *error))failure
|
||
{
|
||
if ([self isActiveTaskURLEqualToURLRequest:urlRequest forState:state]) {
|
||
return;
|
||
}
|
||
|
||
[self cancelImageDownloadTaskForState:state];
|
||
|
||
AFImageDownloader *downloader = [[self class] sharedImageDownloader];
|
||
id <AFImageRequestCache> imageCache = downloader.imageCache;
|
||
|
||
//Use the image from the image cache if it exists
|
||
UIImage *cachedImage = [imageCache imageforRequest:urlRequest withAdditionalIdentifier:nil];
|
||
if (cachedImage) {
|
||
if (success) {
|
||
success(urlRequest, nil, cachedImage);
|
||
} else {
|
||
[self setImage:cachedImage forState:state];
|
||
}
|
||
[self af_setImageDownloadReceipt:nil forState:state];
|
||
} else {
|
||
if (placeholderImage) {
|
||
[self setImage:placeholderImage forState:state];
|
||
}
|
||
|
||
__weak __typeof(self)weakSelf = self;
|
||
NSUUID *downloadID = [NSUUID UUID];
|
||
AFImageDownloadReceipt *receipt;
|
||
receipt = [downloader
|
||
downloadImageForURLRequest:urlRequest
|
||
withReceiptID:downloadID
|
||
success:^(NSURLRequest * _Nonnull request, NSHTTPURLResponse * _Nullable response, UIImage * _Nonnull responseObject) {
|
||
__strong __typeof(weakSelf)strongSelf = weakSelf;
|
||
if ([[strongSelf af_imageDownloadReceiptForState:state].receiptID isEqual:downloadID]) {
|
||
if (success) {
|
||
success(request, response, responseObject);
|
||
} else if(responseObject) {
|
||
[strongSelf setImage:responseObject forState:state];
|
||
}
|
||
[strongSelf af_setImageDownloadReceipt:nil forState:state];
|
||
}
|
||
|
||
}
|
||
failure:^(NSURLRequest * _Nonnull request, NSHTTPURLResponse * _Nullable response, NSError * _Nonnull error) {
|
||
__strong __typeof(weakSelf)strongSelf = weakSelf;
|
||
if ([[strongSelf af_imageDownloadReceiptForState:state].receiptID isEqual:downloadID]) {
|
||
if (failure) {
|
||
failure(request, response, error);
|
||
}
|
||
[strongSelf af_setImageDownloadReceipt:nil forState:state];
|
||
}
|
||
}];
|
||
|
||
[self af_setImageDownloadReceipt:receipt forState:state];
|
||
}
|
||
}
|
||
|
||
#pragma mark -
|
||
|
||
- (void)setBackgroundImageForState:(UIControlState)state
|
||
withURL:(NSURL *)url
|
||
{
|
||
[self setBackgroundImageForState:state withURL:url placeholderImage:nil];
|
||
}
|
||
|
||
- (void)setBackgroundImageForState:(UIControlState)state
|
||
withURL:(NSURL *)url
|
||
placeholderImage:(nullable UIImage *)placeholderImage
|
||
{
|
||
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
|
||
[request addValue:@"image/*" forHTTPHeaderField:@"Accept"];
|
||
|
||
[self setBackgroundImageForState:state withURLRequest:request placeholderImage:placeholderImage success:nil failure:nil];
|
||
}
|
||
|
||
- (void)setBackgroundImageForState:(UIControlState)state
|
||
withURLRequest:(NSURLRequest *)urlRequest
|
||
placeholderImage:(nullable UIImage *)placeholderImage
|
||
success:(nullable void (^)(NSURLRequest *request, NSHTTPURLResponse * _Nullable response, UIImage *image))success
|
||
failure:(nullable void (^)(NSURLRequest *request, NSHTTPURLResponse * _Nullable response, NSError *error))failure
|
||
{
|
||
if ([self isActiveBackgroundTaskURLEqualToURLRequest:urlRequest forState:state]) {
|
||
return;
|
||
}
|
||
|
||
[self cancelBackgroundImageDownloadTaskForState:state];
|
||
|
||
AFImageDownloader *downloader = [[self class] sharedImageDownloader];
|
||
id <AFImageRequestCache> imageCache = downloader.imageCache;
|
||
|
||
//Use the image from the image cache if it exists
|
||
UIImage *cachedImage = [imageCache imageforRequest:urlRequest withAdditionalIdentifier:nil];
|
||
if (cachedImage) {
|
||
if (success) {
|
||
success(urlRequest, nil, cachedImage);
|
||
} else {
|
||
[self setBackgroundImage:cachedImage forState:state];
|
||
}
|
||
[self af_setBackgroundImageDownloadReceipt:nil forState:state];
|
||
} else {
|
||
if (placeholderImage) {
|
||
[self setBackgroundImage:placeholderImage forState:state];
|
||
}
|
||
|
||
__weak __typeof(self)weakSelf = self;
|
||
NSUUID *downloadID = [NSUUID UUID];
|
||
AFImageDownloadReceipt *receipt;
|
||
receipt = [downloader
|
||
downloadImageForURLRequest:urlRequest
|
||
withReceiptID:downloadID
|
||
success:^(NSURLRequest * _Nonnull request, NSHTTPURLResponse * _Nullable response, UIImage * _Nonnull responseObject) {
|
||
__strong __typeof(weakSelf)strongSelf = weakSelf;
|
||
if ([[strongSelf af_backgroundImageDownloadReceiptForState:state].receiptID isEqual:downloadID]) {
|
||
if (success) {
|
||
success(request, response, responseObject);
|
||
} else if(responseObject) {
|
||
[strongSelf setBackgroundImage:responseObject forState:state];
|
||
}
|
||
[strongSelf af_setBackgroundImageDownloadReceipt:nil forState:state];
|
||
}
|
||
|
||
}
|
||
failure:^(NSURLRequest * _Nonnull request, NSHTTPURLResponse * _Nullable response, NSError * _Nonnull error) {
|
||
__strong __typeof(weakSelf)strongSelf = weakSelf;
|
||
if ([[strongSelf af_backgroundImageDownloadReceiptForState:state].receiptID isEqual:downloadID]) {
|
||
if (failure) {
|
||
failure(request, response, error);
|
||
}
|
||
[strongSelf af_setBackgroundImageDownloadReceipt:nil forState:state];
|
||
}
|
||
}];
|
||
|
||
[self af_setBackgroundImageDownloadReceipt:receipt forState:state];
|
||
}
|
||
}
|
||
|
||
#pragma mark -
|
||
|
||
- (void)cancelImageDownloadTaskForState:(UIControlState)state {
|
||
AFImageDownloadReceipt *receipt = [self af_imageDownloadReceiptForState:state];
|
||
if (receipt != nil) {
|
||
[[self.class sharedImageDownloader] cancelTaskForImageDownloadReceipt:receipt];
|
||
[self af_setImageDownloadReceipt:nil forState:state];
|
||
}
|
||
}
|
||
|
||
- (void)cancelBackgroundImageDownloadTaskForState:(UIControlState)state {
|
||
AFImageDownloadReceipt *receipt = [self af_backgroundImageDownloadReceiptForState:state];
|
||
if (receipt != nil) {
|
||
[[self.class sharedImageDownloader] cancelTaskForImageDownloadReceipt:receipt];
|
||
[self af_setBackgroundImageDownloadReceipt:nil forState:state];
|
||
}
|
||
}
|
||
|
||
- (BOOL)isActiveTaskURLEqualToURLRequest:(NSURLRequest *)urlRequest forState:(UIControlState)state {
|
||
AFImageDownloadReceipt *receipt = [self af_imageDownloadReceiptForState:state];
|
||
return [receipt.task.originalRequest.URL.absoluteString isEqualToString:urlRequest.URL.absoluteString];
|
||
}
|
||
|
||
- (BOOL)isActiveBackgroundTaskURLEqualToURLRequest:(NSURLRequest *)urlRequest forState:(UIControlState)state {
|
||
AFImageDownloadReceipt *receipt = [self af_backgroundImageDownloadReceiptForState:state];
|
||
return [receipt.task.originalRequest.URL.absoluteString isEqualToString:urlRequest.URL.absoluteString];
|
||
}
|
||
|
||
|
||
@end
|
||
|
||
#endif
|