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Merge pull request #1023 from artsy/auction-banner
Auction Banner
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| /// Given a closure T -> Void, returns a function that takes a T and invokes the closure. | ||
| /// Useful for performing operations with curried functions. | ||
| /// Ex: [a, b, c,].forEach(apply(self.function)) will call self.function with a, b, then c as parameters. | ||
| func apply<T>(closure: T -> Void)(instance: T) { | ||
| closure(instance) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,16 +1,94 @@ | ||
| import UIKit | ||
| import Artsy_UIColors | ||
| import FLKAutoLayout | ||
| import SDWebImage | ||
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| class AuctionBannerView: UIView { | ||
| let viewModel: SaleViewModel | ||
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| // Note: These are in order as they'll be in the view hierarchy (ie: first in the list is at the back) | ||
| private let backgroundImageView = UIImageView() | ||
| private let darkeningView = DarkeningView() | ||
| private let logoImageView = UIImageView() | ||
| private let countdownView = ARCountdownView(color: .whiteColor()) | ||
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| init(viewModel: SaleViewModel) { | ||
| self.viewModel = viewModel | ||
| super.init(frame: CGRect.zero) | ||
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| backgroundColor = .redColor() | ||
| setupViews() | ||
| } | ||
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| required init?(coder aDecoder: NSCoder) { | ||
| fatalError("init(coder:) has not been implemented") | ||
| } | ||
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| override func willMoveToSuperview(newSuperview: UIView?) { | ||
| super.willMoveToSuperview(newSuperview) | ||
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| // Countdown view only counts down when we have a superview. | ||
| if let _ = newSuperview { | ||
| countdownView.startTimer() | ||
| } else { | ||
| countdownView.stopTimer() | ||
| } | ||
| } | ||
| } | ||
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| extension AuctionBannerView { | ||
| private func setupViews() { | ||
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| // Configure views. | ||
| countdownView.targetDate = viewModel.closingDate | ||
| countdownView.heading = "Closing In" | ||
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| // Add all as subviews to self. | ||
| [backgroundImageView, darkeningView, logoImageView, countdownView].forEach(apply(addSubview)) | ||
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| // Background + darkening view always cover self totally. | ||
| backgroundImageView.alignToView(self) | ||
| darkeningView.alignToView(self) | ||
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| logoImageView.constrainHeight("70") | ||
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| // Device-specific layout for logo & countdown views. | ||
| if UIDevice.isPad() { | ||
| // Bottom lefthand corner with 40pt margin. | ||
| logoImageView.alignLeadingEdgeWithView(self, predicate: "40") | ||
| logoImageView.alignBottomEdgeWithView(self, predicate: "-40") | ||
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| // Must constraint self to 200pt tall on iPad, since our view hierarchy doesn't provide any height constraint and in its abses, defaults to the background image's height. | ||
| constrainHeight("200") | ||
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| // Bottom righthand corner with 40pt margin. | ||
| countdownView.alignTrailingEdgeWithView(self, predicate: "-40") | ||
| countdownView.alignBottomEdgeWithView(self, predicate: "-40") | ||
| } else { | ||
| logoImageView.alignTopEdgeWithView(self, predicate: "30") | ||
| countdownView.constrainTopSpaceToView(logoImageView, predicate: "7") | ||
| countdownView.alignBottomEdgeWithView(self, predicate: "-30") | ||
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| // The background will stretch us to be larger (based on its image height), so we want to prevent that. | ||
| backgroundImageView.setContentCompressionResistancePriority(UILayoutPriorityDefaultLow, forAxis: .Vertical) | ||
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| logoImageView.alignCenterXWithView(self, predicate: "0") | ||
| countdownView.alignCenterXWithView(self, predicate: "0") | ||
| } | ||
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| // Start any necessary image downloads. | ||
| backgroundImageView.sd_setImageWithURL(viewModel.backgroundImageURL) | ||
| logoImageView.sd_setImageWithURL(viewModel.profileImageURL) { [weak logoImageView] (image, _, _, _) in | ||
| // This keeps the image view constrained to the image's aspect ratio, which allows us to 'left align' this on iPad. | ||
| let aspectRatio = image.size.width / image.size.height | ||
| logoImageView?.constrainAspectRatio("\(aspectRatio)") | ||
| } | ||
| } | ||
| } | ||
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| private class DarkeningView: UIView { | ||
| private override func didMoveToSuperview() { | ||
| super.didMoveToSuperview() | ||
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| backgroundColor = UIColor(white: 0, alpha: 0.3) | ||
| } | ||
| } |
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