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Simplify creation of Photos Framework NSURLs in ASMultiplexImageNode

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This commit is contained in:
Adlai Holler
2015-10-02 12:44:21 -07:00
parent 5f49e0f67d
commit de1f9788f3
5 changed files with 65 additions and 39 deletions
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35
AsyncDisplayKit/ASMultiplexImageNode.h
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@@ -9,6 +9,7 @@
#import <AsyncDisplayKit/ASImageNode.h>
#import <AsyncDisplayKit/ASImageProtocols.h>
#import <Photos/Photos.h>
@protocol ASMultiplexImageNodeDelegate;
@protocol ASMultiplexImageNodeDataSource;
@@ -98,6 +99,13 @@ typedef NS_ENUM(NSUInteger, ASMultiplexImageNodeErrorCode) {
*/
@property (nonatomic, readonly) id displayedImageIdentifier;
/**
* @abstract The image manager that this image node should use when requesting images from the Photos framework. Defaults to `PHImageManager.defaultManager`.
* @see `+[NSURL URLWithAssetLocalIdentifier:targetSize:contentMode:options:]` below.
*/
@property (nonatomic, strong) PHImageManager *imageManager;
@end
@@ -195,11 +203,32 @@ didFinishDownloadingImageWithIdentifier:(id)imageIdentifier
* @abstract An image URL for the specified identifier.
* @param imageNode The sender.
* @param imageIdentifier The identifier for the image that will be downloaded.
* @discussion Supported URLs include assets-library, URLs converted from ASPhotosFrameworkImageRequest, HTTP, HTTPS, and FTP URLs. If the
* image is already available to the data source, it should be provided via <[ASMultiplexImageNodeDataSource
* @discussion Supported URLs include HTTP, HTTPS, AssetsLibrary, and FTP URLs as well as Photos framework URLs (see note).
*
* If the image is already available to the data source, it should be provided via <[ASMultiplexImageNodeDataSource
* multiplexImageNode:imageForImageIdentifier:]> instead.
* @returns An NSURL for the image identified by `imageIdentifier`, or nil if none is available.
* @return An NSURL for the image identified by `imageIdentifier`, or nil if none is available.
* @see `+[NSURL URLWithAssetLocalIdentifier:targetSize:contentMode:options:]` below.
*/
- (NSURL *)multiplexImageNode:(ASMultiplexImageNode *)imageNode URLForImageIdentifier:(id)imageIdentifier;
@end
#pragma mark -
@interface NSURL (ASPhotosFrameworkURLs)
/**
* @abstract Create an NSURL that specifies an image from the Photos framework.
*
* @discussion When implementing `-multiplexImageNode:URLForImageIdentifier:`, you can return a URL
* created by this method and the image node will attempt to load the image from the Photos framework.
* @note The `synchronous` flag in `options` is ignored.
* @note The `Opportunistic` delivery mode is not supported and will be treated as `HighQualityFormat`.
*/
+ (NSURL *)URLWithAssetLocalIdentifier:(NSString *)assetLocalIdentifier
targetSize:(CGSize)targetSize
contentMode:(PHImageContentMode)contentMode
options:(PHImageRequestOptions *)options;
@end