mirror of
https://github.com/Swiftgram/Telegram-iOS.git
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239 lines
12 KiB
Swift
239 lines
12 KiB
Swift
import Foundation
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import Display
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import AsyncDisplayKit
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import SwiftSignalKit
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import Postbox
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import TelegramCore
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private struct InstantImageGalleryThumbnailItem: GalleryThumbnailItem {
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let account: Account
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let mediaReference: AnyMediaReference
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var image: (Signal<(TransformImageArguments) -> DrawingContext?, NoError>, CGSize) {
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if let imageReferene = mediaReference.concrete(TelegramMediaImage.self), let representation = largestImageRepresentation(imageReferene.media.representations) {
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return (mediaGridMessagePhoto(account: self.account, photoReference: imageReferene), representation.dimensions)
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} else if let fileReference = mediaReference.concrete(TelegramMediaFile.self), let dimensions = fileReference.media.dimensions {
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return (mediaGridMessageVideo(postbox: account.postbox, videoReference: fileReference), dimensions)
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} else {
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return (.single({ _ in return nil }), CGSize(width: 128.0, height: 128.0))
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}
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}
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func isEqual(to: GalleryThumbnailItem) -> Bool {
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if let to = to as? InstantImageGalleryThumbnailItem {
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return self.mediaReference == to.mediaReference
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} else {
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return false
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}
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}
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}
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class InstantImageGalleryItem: GalleryItem {
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let account: Account
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let theme: PresentationTheme
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let strings: PresentationStrings
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let imageReference: ImageMediaReference
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let caption: String
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let location: InstantPageGalleryEntryLocation
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init(account: Account, theme: PresentationTheme, strings: PresentationStrings, imageReference: ImageMediaReference, caption: String, location: InstantPageGalleryEntryLocation) {
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self.account = account
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self.theme = theme
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self.strings = strings
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self.imageReference = imageReference
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self.caption = caption
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self.location = location
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}
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func node() -> GalleryItemNode {
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let node = InstantImageGalleryItemNode(account: self.account, theme: self.theme, strings: self.strings)
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node.setImage(imageReference: self.imageReference)
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node._title.set(.single("\(self.location.position + 1) of \(self.location.totalCount)"))
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node.setCaption(self.caption)
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return node
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}
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func updateNode(node: GalleryItemNode) {
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if let node = node as? InstantImageGalleryItemNode {
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node._title.set(.single("\(self.location.position + 1) of \(self.location.totalCount)"))
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node.setCaption(self.caption)
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}
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}
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func thumbnailItem() -> (Int64, GalleryThumbnailItem)? {
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return (0, InstantImageGalleryThumbnailItem(account: self.account, mediaReference: imageReference.abstract))
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}
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}
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final class InstantImageGalleryItemNode: ZoomableContentGalleryItemNode {
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private let account: Account
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private let imageNode: TransformImageNode
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fileprivate let _ready = Promise<Void>()
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fileprivate let _title = Promise<String>()
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private let footerContentNode: InstantPageGalleryFooterContentNode
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private var accountAndMedia: (Account, AnyMediaReference)?
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private var fetchDisposable = MetaDisposable()
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init(account: Account, theme: PresentationTheme, strings: PresentationStrings) {
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self.account = account
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self.imageNode = TransformImageNode()
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self.footerContentNode = InstantPageGalleryFooterContentNode(account: account, theme: theme, strings: strings)
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super.init()
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self.imageNode.imageUpdated = { [weak self] in
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self?._ready.set(.single(Void()))
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}
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self.imageNode.view.contentMode = .scaleAspectFill
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self.imageNode.clipsToBounds = true
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}
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deinit {
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self.fetchDisposable.dispose()
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}
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override func ready() -> Signal<Void, NoError> {
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return self._ready.get()
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}
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override func containerLayoutUpdated(_ layout: ContainerViewLayout, navigationBarHeight: CGFloat, transition: ContainedViewLayoutTransition) {
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super.containerLayoutUpdated(layout, navigationBarHeight: navigationBarHeight, transition: transition)
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}
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fileprivate func setCaption(_ caption: String) {
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self.footerContentNode.setCaption(caption)
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}
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fileprivate func setImage(imageReference: ImageMediaReference) {
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if self.accountAndMedia == nil || !self.accountAndMedia!.1.media.isEqual(imageReference.media) {
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if let largestSize = largestRepresentationForPhoto(imageReference.media) {
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let displaySize = largestSize.dimensions.fitted(CGSize(width: 1280.0, height: 1280.0)).dividedByScreenScale().integralFloor
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self.imageNode.asyncLayout()(TransformImageArguments(corners: ImageCorners(), imageSize: displaySize, boundingSize: displaySize, intrinsicInsets: UIEdgeInsets()))()
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self.imageNode.setSignal(chatMessagePhoto(postbox: account.postbox, photoReference: imageReference), dispatchOnDisplayLink: false)
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self.zoomableContent = (largestSize.dimensions, self.imageNode)
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self.fetchDisposable.set(fetchedMediaResource(postbox: self.account.postbox, reference: imageReference.resourceReference(largestSize.resource)).start())
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} else {
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self._ready.set(.single(Void()))
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}
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}
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self.accountAndMedia = (account, imageReference.abstract)
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self.footerContentNode.setShareMedia(imageReference.abstract)
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}
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func setFile(account: Account, fileReference: FileMediaReference) {
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if self.accountAndMedia == nil || !self.accountAndMedia!.1.media.isEqual(fileReference.media) {
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if let largestSize = fileReference.media.dimensions {
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let displaySize = largestSize.dividedByScreenScale()
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self.imageNode.asyncLayout()(TransformImageArguments(corners: ImageCorners(), imageSize: displaySize, boundingSize: displaySize, intrinsicInsets: UIEdgeInsets()))()
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self.imageNode.setSignal(chatMessageImageFile(account: account, fileReference: fileReference, thumbnail: false), dispatchOnDisplayLink: false)
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self.zoomableContent = (largestSize, self.imageNode)
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} else {
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self._ready.set(.single(Void()))
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}
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}
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self.accountAndMedia = (account, fileReference.abstract)
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self.footerContentNode.setShareMedia(fileReference.abstract)
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}
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override func animateIn(from node: (ASDisplayNode, () -> UIView?), addToTransitionSurface: (UIView) -> Void) {
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var transformedFrame = node.0.view.convert(node.0.view.bounds, to: self.imageNode.view)
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let transformedSuperFrame = node.0.view.convert(node.0.view.bounds, to: self.imageNode.view.superview)
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let transformedSelfFrame = node.0.view.convert(node.0.view.bounds, to: self.view)
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let transformedCopyViewFinalFrame = self.imageNode.view.convert(self.imageNode.view.bounds, to: self.view)
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let copyView = node.1()!
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self.view.insertSubview(copyView, belowSubview: self.scrollNode.view)
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copyView.frame = transformedSelfFrame
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copyView.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.25, removeOnCompletion: false, completion: { [weak copyView] _ in
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copyView?.removeFromSuperview()
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})
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copyView.layer.animatePosition(from: CGPoint(x: transformedSelfFrame.midX, y: transformedSelfFrame.midY), to: CGPoint(x: transformedCopyViewFinalFrame.midX, y: transformedCopyViewFinalFrame.midY), duration: 0.25, timingFunction: kCAMediaTimingFunctionSpring, removeOnCompletion: false)
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let scale = CGSize(width: transformedCopyViewFinalFrame.size.width / transformedSelfFrame.size.width, height: transformedCopyViewFinalFrame.size.height / transformedSelfFrame.size.height)
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copyView.layer.animate(from: NSValue(caTransform3D: CATransform3DIdentity), to: NSValue(caTransform3D: CATransform3DMakeScale(scale.width, scale.height, 1.0)), keyPath: "transform", timingFunction: kCAMediaTimingFunctionSpring, duration: 0.25, removeOnCompletion: false)
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self.imageNode.layer.animatePosition(from: CGPoint(x: transformedSuperFrame.midX, y: transformedSuperFrame.midY), to: self.imageNode.layer.position, duration: 0.25, timingFunction: kCAMediaTimingFunctionSpring)
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self.imageNode.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.1)
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transformedFrame.origin = CGPoint()
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self.imageNode.layer.animateBounds(from: transformedFrame, to: self.imageNode.layer.bounds, duration: 0.25, timingFunction: kCAMediaTimingFunctionSpring)
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}
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override func animateOut(to node: (ASDisplayNode, () -> UIView?), addToTransitionSurface: (UIView) -> Void, completion: @escaping () -> Void) {
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var transformedFrame = node.0.view.convert(node.0.view.bounds, to: self.imageNode.view)
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let transformedSuperFrame = node.0.view.convert(node.0.view.bounds, to: self.imageNode.view.superview)
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let transformedSelfFrame = node.0.view.convert(node.0.view.bounds, to: self.view)
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let transformedCopyViewInitialFrame = self.imageNode.view.convert(self.imageNode.view.bounds, to: self.view)
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var positionCompleted = false
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var boundsCompleted = false
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var copyCompleted = false
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let copyView = node.1()!
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self.view.insertSubview(copyView, belowSubview: self.scrollNode.view)
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copyView.frame = transformedSelfFrame
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let intermediateCompletion = { [weak copyView] in
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if positionCompleted && boundsCompleted && copyCompleted {
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copyView?.removeFromSuperview()
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completion()
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}
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}
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copyView.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.1, removeOnCompletion: false)
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copyView.layer.animatePosition(from: CGPoint(x: transformedCopyViewInitialFrame.midX, y: transformedCopyViewInitialFrame.midY), to: CGPoint(x: transformedSelfFrame.midX, y: transformedSelfFrame.midY), duration: 0.25, timingFunction: kCAMediaTimingFunctionSpring, removeOnCompletion: false)
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let scale = CGSize(width: transformedCopyViewInitialFrame.size.width / transformedSelfFrame.size.width, height: transformedCopyViewInitialFrame.size.height / transformedSelfFrame.size.height)
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copyView.layer.animate(from: NSValue(caTransform3D: CATransform3DMakeScale(scale.width, scale.height, 1.0)), to: NSValue(caTransform3D: CATransform3DIdentity), keyPath: "transform", timingFunction: kCAMediaTimingFunctionSpring, duration: 0.25, removeOnCompletion: false, completion: { _ in
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copyCompleted = true
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intermediateCompletion()
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})
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self.imageNode.layer.animatePosition(from: self.imageNode.layer.position, to: CGPoint(x: transformedSuperFrame.midX, y: transformedSuperFrame.midY), duration: 0.25, timingFunction: kCAMediaTimingFunctionSpring, removeOnCompletion: false, completion: { _ in
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positionCompleted = true
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intermediateCompletion()
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})
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self.imageNode.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.25, removeOnCompletion: false)
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transformedFrame.origin = CGPoint()
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self.imageNode.layer.animateBounds(from: self.imageNode.layer.bounds, to: transformedFrame, duration: 0.25, timingFunction: kCAMediaTimingFunctionSpring, removeOnCompletion: false, completion: { _ in
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boundsCompleted = true
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intermediateCompletion()
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})
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}
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override func visibilityUpdated(isVisible: Bool) {
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super.visibilityUpdated(isVisible: isVisible)
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if let (account, media) = self.accountAndMedia, let fileReference = media.concrete(TelegramMediaFile.self) {
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if isVisible {
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self.fetchDisposable.set(fetchedMediaResource(postbox: account.postbox, reference: fileReference.resourceReference(fileReference.media.resource)).start())
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} else {
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self.fetchDisposable.set(nil)
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}
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}
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}
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override func title() -> Signal<String, NoError> {
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return self._title.get()
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}
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override func footerContent() -> Signal<GalleryFooterContentNode?, NoError> {
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return .single(self.footerContentNode)
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}
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}
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