54 lines
2.1 KiB
Swift
54 lines
2.1 KiB
Swift
// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
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import Foundation
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enum Media {
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case gallery(MediaGalleryViewModel.Item)
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case image(UIImage)
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var image: UIImage? {
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switch self {
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case let .gallery(item):
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// For videos attempt to load a large thumbnail, for other items just try to load
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// the source file directly
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guard !item.isVideo else { return item.attachment.existingThumbnail(size: .large) }
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guard let originalFilePath: String = item.attachment.originalFilePath else { return nil }
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return UIImage(contentsOfFile: originalFilePath)
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case let .image(image): return image
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}
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}
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}
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struct MediaPresentationContext {
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let mediaView: UIView
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let presentationFrame: CGRect
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let cornerRadius: CGFloat
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let cornerMask: CACornerMask
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}
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// There are two kinds of AnimationControllers that interact with the media detail view. Both
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// appear to transition the media view from one VC to it's corresponding location in the
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// destination VC.
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//
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// MediaPresentationContextProvider is either a target or destination VC which can provide the
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// details necessary to facilite this animation.
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//
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// First, the MediaZoomAnimationController is non-interactive. We use it whenever we're going to
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// show the Media detail pager.
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//
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// We can get there several ways:
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// From conversation settings, this can be a push or a pop from the tileView.
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// From conversationView/MessageDetails this can be a modal present or a pop from the tile view.
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//
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// The other animation controller, the MediaDismissAnimationController is used when we're going to
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// stop showing the media pager. This can be a pop to the tile view, or a modal dismiss.
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protocol MediaPresentationContextProvider {
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func mediaPresentationContext(mediaItem: Media, in coordinateSpace: UICoordinateSpace) -> MediaPresentationContext?
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// The transitionView will be presented below this view.
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// If nil, the transitionView will be presented above all
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func snapshotOverlayView(in coordinateSpace: UICoordinateSpace) -> (UIView, CGRect)?
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}
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