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Updated the ACL to public for some of the UIImageView APIs to allow f…
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…or reuse.
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@cnoon
cnoon committed Jan 18, 2016
1 parent 166224e commit 1b1b2a7
Showing 1 changed file with 66 additions and 39 deletions.
105 changes: 66 additions & 39 deletions Source/UIImageView+AlamofireImage.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -45,35 +45,56 @@ extension UIImageView {
completion: (Bool -> Void)?
)

private var duration: NSTimeInterval {
/// The duration of the image transition in seconds.
public var duration: NSTimeInterval {
switch self {
case None: return 0.0
case CrossDissolve(let duration): return duration
case CurlDown(let duration): return duration
case CurlUp(let duration): return duration
case FlipFromBottom(let duration): return duration
case FlipFromLeft(let duration): return duration
case FlipFromRight(let duration): return duration
case FlipFromTop(let duration): return duration
case Custom(let duration, _, _, _): return duration
case None:
return 0.0
case CrossDissolve(let duration):
return duration
case CurlDown(let duration):
return duration
case CurlUp(let duration):
return duration
case FlipFromBottom(let duration):
return duration
case FlipFromLeft(let duration):
return duration
case FlipFromRight(let duration):
return duration
case FlipFromTop(let duration):
return duration
case Custom(let duration, _, _, _):
return duration
}
}

private var animationOptions: UIViewAnimationOptions {
/// The animation options of the image transition.
public var animationOptions: UIViewAnimationOptions {
switch self {
case None: return .TransitionNone
case CrossDissolve: return .TransitionCrossDissolve
case CurlDown: return .TransitionCurlDown
case CurlUp: return .TransitionCurlUp
case FlipFromBottom: return .TransitionFlipFromBottom
case FlipFromLeft: return .TransitionFlipFromLeft
case FlipFromRight: return .TransitionFlipFromRight
case FlipFromTop: return .TransitionFlipFromTop
case Custom(_, let animationOptions, _, _): return animationOptions
case None:
return .TransitionNone
case CrossDissolve:
return .TransitionCrossDissolve
case CurlDown:
return .TransitionCurlDown
case CurlUp:
return .TransitionCurlUp
case FlipFromBottom:
return .TransitionFlipFromBottom
case FlipFromLeft:
return .TransitionFlipFromLeft
case FlipFromRight:
return .TransitionFlipFromRight
case FlipFromTop:
return .TransitionFlipFromTop
case Custom(_, let animationOptions, _, _):
return animationOptions
}
}

private var animations: ((UIImageView, Image) -> Void) {
/// The animation options of the image transition.
public var animations: ((UIImageView, Image) -> Void) {
switch self {
case Custom(_, _, let animations, _):
return animations
Expand All @@ -82,7 +103,8 @@ extension UIImageView {
}
}

private var completion: (Bool -> Void)? {
/// The completion closure associated with the image transition.
public var completion: (Bool -> Void)? {
switch self {
case Custom(_, _, _, let completion):
return completion
Expand All @@ -98,10 +120,9 @@ extension UIImageView {
static var ImageDownloaderKey = "af_UIImageView.ImageDownloader"
static var SharedImageDownloaderKey = "af_UIImageView.SharedImageDownloader"
static var ActiveRequestReceiptKey = "af_UIImageView.ActiveRequestReceipt"
static var ActiveDownloadIDKey = "af_UIImageView.ActiveDownloadID"
}

// MARK: - Properties
// MARK: - Associated Properties

/// The instance image downloader used to download all images. If this property is `nil`, the `UIImageView` will
/// fallback on the `af_sharedImageDownloader` for all downloads. The most common use case for needing to use a
Expand All @@ -127,21 +148,21 @@ extension UIImageView {
return ImageDownloader.defaultInstance
}
}
set(downloader) {
objc_setAssociatedObject(self, &AssociatedKeys.SharedImageDownloaderKey, downloader, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
set {
objc_setAssociatedObject(self, &AssociatedKeys.SharedImageDownloaderKey, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
}
}

var activeRequestReceipt: RequestReceipt? {
var af_activeRequestReceipt: RequestReceipt? {
get {
return objc_getAssociatedObject(self, &AssociatedKeys.ActiveRequestReceiptKey) as? RequestReceipt
}
set(receipt) {
objc_setAssociatedObject(self, &AssociatedKeys.ActiveRequestReceiptKey, receipt, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
set {
objc_setAssociatedObject(self, &AssociatedKeys.ActiveRequestReceiptKey, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
}
}

// MARK: - Image Download Methods
// MARK: - Image Download

/**
Asynchronously downloads an image from the specified URL and sets it once the request is finished.
Expand Down Expand Up @@ -384,7 +405,7 @@ extension UIImageView {

guard
strongSelf.isURLRequestURLEqualToActiveRequestURL(response.request) &&
strongSelf.activeRequestReceipt?.receiptID == downloadID
strongSelf.af_activeRequestReceipt?.receiptID == downloadID
else {
return
}
Expand All @@ -393,30 +414,36 @@ extension UIImageView {
strongSelf.runImageTransition(imageTransition, withImage: image)
}

strongSelf.activeRequestReceipt = nil
strongSelf.af_activeRequestReceipt = nil
}
)

activeRequestReceipt = requestReceipt
af_activeRequestReceipt = requestReceipt
}

// MARK: - Image Download Cancellation Methods
// MARK: - Image Download Cancellation

/**
Cancels the active download request, if one exists.
*/
public func af_cancelImageRequest() {
guard let activeRequestReceipt = self.activeRequestReceipt else { return }
guard let activeRequestReceipt = af_activeRequestReceipt else { return }

let imageDownloader = af_imageDownloader ?? UIImageView.af_sharedImageDownloader
imageDownloader.cancelRequestForRequestReceipt(activeRequestReceipt)

self.activeRequestReceipt = nil
af_activeRequestReceipt = nil
}

// MARK: - Private - Image Transition
// MARK: - Image Transition

/**
Runs the image transition on the image view with the specified image.

private func runImageTransition(imageTransition: ImageTransition, withImage image: Image) {
- parameter imageTransition: The image transition to ran on the image view.
- parameter image: The image to use for the image transition.
*/
public func runImageTransition(imageTransition: ImageTransition, withImage image: Image) {
UIView.transitionWithView(
self,
duration: imageTransition.duration,
Expand All @@ -442,7 +469,7 @@ extension UIImageView {

private func isURLRequestURLEqualToActiveRequestURL(URLRequest: URLRequestConvertible?) -> Bool {
if let
currentRequest = activeRequestReceipt?.request.task.originalRequest
currentRequest = af_activeRequestReceipt?.request.task.originalRequest
where currentRequest.URLString == URLRequest?.URLRequest.URLString
{
return true
Expand Down

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