mirror of
https://github.com/Swiftgram/Telegram-iOS.git
synced 2025-06-16 05:55:20 +00:00
588 lines
24 KiB
Swift
588 lines
24 KiB
Swift
import Foundation
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import UIKit
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import Display
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import ComponentFlow
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import PagerComponent
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import TelegramPresentationData
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import TelegramCore
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import Postbox
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import MultiAnimationRenderer
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import AnimationCache
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import AccountContext
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import LottieAnimationCache
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import AnimatedStickerNode
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import TelegramAnimatedStickerNode
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import SwiftSignalKit
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import ShimmerEffect
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import PagerComponent
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import SoftwareVideo
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import AVFoundation
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import PhotoResources
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private class GifVideoLayer: AVSampleBufferDisplayLayer {
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private let context: AccountContext
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private let file: TelegramMediaFile
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private var frameManager: SoftwareVideoLayerFrameManager?
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private var thumbnailDisposable: Disposable?
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private var playbackTimestamp: Double = 0.0
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private var playbackTimer: SwiftSignalKit.Timer?
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var started: (() -> Void)?
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var shouldBeAnimating: Bool = false {
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didSet {
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if self.shouldBeAnimating == oldValue {
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return
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}
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if self.shouldBeAnimating {
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self.playbackTimer?.invalidate()
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self.playbackTimer = SwiftSignalKit.Timer(timeout: 1.0 / 30.0, repeat: true, completion: { [weak self] in
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guard let strongSelf = self else {
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return
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}
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strongSelf.frameManager?.tick(timestamp: strongSelf.playbackTimestamp)
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strongSelf.playbackTimestamp += 1.0 / 30.0
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}, queue: .mainQueue())
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self.playbackTimer?.start()
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} else {
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self.playbackTimer?.invalidate()
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self.playbackTimer = nil
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}
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}
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}
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init(context: AccountContext, file: TelegramMediaFile, synchronousLoad: Bool) {
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self.context = context
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self.file = file
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super.init()
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self.videoGravity = .resizeAspectFill
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if let dimensions = file.dimensions {
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self.thumbnailDisposable = (mediaGridMessageVideo(postbox: context.account.postbox, videoReference: .savedGif(media: self.file), synchronousLoad: synchronousLoad, nilForEmptyResult: true)
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|> deliverOnMainQueue).start(next: { [weak self] transform in
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guard let strongSelf = self else {
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return
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}
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let boundingSize = CGSize(width: 93.0, height: 93.0)
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let imageSize = dimensions.cgSize.aspectFilled(boundingSize)
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if let image = transform(TransformImageArguments(corners: ImageCorners(), imageSize: imageSize, boundingSize: boundingSize, intrinsicInsets: UIEdgeInsets(), resizeMode: .fill(.clear)))?.generateImage() {
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Queue.mainQueue().async {
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if let strongSelf = self {
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strongSelf.contents = image.cgImage
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strongSelf.setupVideo()
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strongSelf.started?()
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}
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}
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} else {
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strongSelf.setupVideo()
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}
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})
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} else {
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self.setupVideo()
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}
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}
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override init(layer: Any) {
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preconditionFailure()
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}
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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deinit {
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self.thumbnailDisposable?.dispose()
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}
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private func setupVideo() {
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let frameManager = SoftwareVideoLayerFrameManager(account: self.context.account, fileReference: .savedGif(media: self.file), layerHolder: nil, layer: self)
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self.frameManager = frameManager
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frameManager.started = { [weak self] in
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guard let strongSelf = self else {
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return
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}
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let _ = strongSelf
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}
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frameManager.start()
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}
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}
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public final class GifPagerContentComponent: Component {
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public typealias EnvironmentType = (EntityKeyboardChildEnvironment, PagerComponentChildEnvironment)
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public final class InputInteraction {
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public let performItemAction: (Item, UIView, CGRect) -> Void
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public init(
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performItemAction: @escaping (Item, UIView, CGRect) -> Void
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) {
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self.performItemAction = performItemAction
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}
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}
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public final class Item: Equatable {
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public let file: TelegramMediaFile
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public init(file: TelegramMediaFile) {
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self.file = file
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}
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public static func ==(lhs: Item, rhs: Item) -> Bool {
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if lhs === rhs {
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return true
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}
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if lhs.file.fileId != rhs.file.fileId {
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return false
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}
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return true
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}
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}
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public let context: AccountContext
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public let inputInteraction: InputInteraction
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public let items: [Item]
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public init(
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context: AccountContext,
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inputInteraction: InputInteraction,
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items: [Item]
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) {
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self.context = context
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self.inputInteraction = inputInteraction
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self.items = items
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}
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public static func ==(lhs: GifPagerContentComponent, rhs: GifPagerContentComponent) -> Bool {
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if lhs.context !== rhs.context {
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return false
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}
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if lhs.inputInteraction !== rhs.inputInteraction {
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return false
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}
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if lhs.items != rhs.items {
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return false
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}
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return true
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}
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public final class View: UIView, UIScrollViewDelegate {
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private struct ItemGroupDescription: Equatable {
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let hasTitle: Bool
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let itemCount: Int
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}
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private struct ItemGroupLayout: Equatable {
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let frame: CGRect
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let itemTopOffset: CGFloat
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let itemCount: Int
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}
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private struct ItemLayout: Equatable {
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let width: CGFloat
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let containerInsets: UIEdgeInsets
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let itemCount: Int
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let itemSize: CGFloat
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let horizontalSpacing: CGFloat
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let verticalSpacing: CGFloat
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let itemsPerRow: Int
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let contentSize: CGSize
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init(width: CGFloat, containerInsets: UIEdgeInsets, itemCount: Int) {
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self.width = width
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self.containerInsets = containerInsets
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self.itemCount = itemCount
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self.horizontalSpacing = 1.0
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self.verticalSpacing = 1.0
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let itemHorizontalSpace = width - self.containerInsets.left - self.containerInsets.right
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self.itemSize = floor((width - self.horizontalSpacing * 2.0) / 3.0)
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self.itemsPerRow = Int((itemHorizontalSpace + self.horizontalSpacing) / (self.itemSize + self.horizontalSpacing))
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let numRowsInGroup = (itemCount + (self.itemsPerRow - 1)) / self.itemsPerRow
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self.contentSize = CGSize(width: width, height: self.containerInsets.top + self.containerInsets.bottom + CGFloat(numRowsInGroup) * self.itemSize + CGFloat(max(0, numRowsInGroup - 1)) * self.verticalSpacing)
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}
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func frame(at index: Int) -> CGRect {
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let row = index / self.itemsPerRow
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let column = index % self.itemsPerRow
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var rect = CGRect(
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origin: CGPoint(
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x: self.containerInsets.left + CGFloat(column) * (self.itemSize + self.horizontalSpacing),
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y: self.containerInsets.top + CGFloat(row) * (self.itemSize + self.verticalSpacing)
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),
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size: CGSize(
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width: self.itemSize,
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height: self.itemSize
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)
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)
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if column == self.itemsPerRow - 1 {
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rect.size.width = self.width - self.containerInsets.right - rect.minX
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}
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return rect
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}
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func visibleItems(for rect: CGRect) -> Range<Int>? {
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let offsetRect = rect.offsetBy(dx: -self.containerInsets.left, dy: -containerInsets.top)
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var minVisibleRow = Int(floor((offsetRect.minY - self.verticalSpacing) / (self.itemSize + self.verticalSpacing)))
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minVisibleRow = max(0, minVisibleRow)
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let maxVisibleRow = Int(ceil((offsetRect.maxY - self.verticalSpacing) / (self.itemSize + self.verticalSpacing)))
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let minVisibleIndex = minVisibleRow * self.itemsPerRow
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let maxVisibleIndex = min(self.itemCount - 1, (maxVisibleRow + 1) * self.itemsPerRow - 1)
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if maxVisibleIndex >= minVisibleIndex {
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return minVisibleIndex ..< (maxVisibleIndex + 1)
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} else {
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return nil
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}
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}
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}
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fileprivate final class ItemLayer: GifVideoLayer {
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let item: Item
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private let file: TelegramMediaFile
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private let placeholderColor: UIColor
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private var disposable: Disposable?
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private var fetchDisposable: Disposable?
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private var isInHierarchyValue: Bool = false
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public var isVisibleForAnimations: Bool = false {
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didSet {
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if self.isVisibleForAnimations != oldValue {
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self.updatePlayback()
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}
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}
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}
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private var displayPlaceholder: Bool = false
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init(
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item: Item,
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context: AccountContext,
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groupId: String,
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attemptSynchronousLoad: Bool,
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file: TelegramMediaFile,
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placeholderColor: UIColor
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) {
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self.item = item
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self.file = file
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self.placeholderColor = placeholderColor
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super.init(context: context, file: file, synchronousLoad: attemptSynchronousLoad)
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self.updateDisplayPlaceholder(displayPlaceholder: true)
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self.started = { [weak self] in
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self?.updateDisplayPlaceholder(displayPlaceholder: false)
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}
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/*if attemptSynchronousLoad {
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if !renderer.loadFirstFrameSynchronously(groupId: groupId, target: self, cache: cache, itemId: file.resource.id.stringRepresentation, size: pixelSize) {
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self.displayPlaceholder = true
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if let image = generateStickerPlaceholderImage(data: file.immediateThumbnailData, size: self.size, imageSize: file.dimensions?.cgSize ?? CGSize(width: 512.0, height: 512.0), backgroundColor: nil, foregroundColor: placeholderColor) {
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self.contents = image.cgImage
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}
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}
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}
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self.disposable = renderer.add(groupId: groupId, target: self, cache: cache, itemId: file.resource.id.stringRepresentation, size: pixelSize, fetch: { size, writer in
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let source = AnimatedStickerResourceSource(account: context.account, resource: file.resource, fitzModifier: nil, isVideo: false)
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let dataDisposable = source.directDataPath(attemptSynchronously: false).start(next: { result in
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guard let result = result else {
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return
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}
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guard let data = try? Data(contentsOf: URL(fileURLWithPath: result)) else {
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writer.finish()
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return
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}
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cacheLottieAnimation(data: data, width: Int(size.width), height: Int(size.height), writer: writer)
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})
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let fetchDisposable = freeMediaFileInteractiveFetched(account: context.account, fileReference: .standalone(media: file)).start()
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return ActionDisposable {
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dataDisposable.dispose()
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fetchDisposable.dispose()
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}
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})*/
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}
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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deinit {
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self.disposable?.dispose()
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self.fetchDisposable?.dispose()
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}
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override func action(forKey event: String) -> CAAction? {
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if event == kCAOnOrderIn {
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self.isInHierarchyValue = true
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} else if event == kCAOnOrderOut {
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self.isInHierarchyValue = false
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}
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self.updatePlayback()
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return nullAction
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}
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private func updatePlayback() {
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let shouldBePlaying = self.isInHierarchyValue && self.isVisibleForAnimations
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self.shouldBeAnimating = shouldBePlaying
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}
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func updateDisplayPlaceholder(displayPlaceholder: Bool) {
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if self.displayPlaceholder == displayPlaceholder {
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return
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}
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self.displayPlaceholder = displayPlaceholder
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if displayPlaceholder {
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let placeholderColor = self.placeholderColor
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self.backgroundColor = placeholderColor.cgColor
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} else {
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self.backgroundColor = nil
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}
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}
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}
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private let scrollView: UIScrollView
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private var visibleItemLayers: [MediaId: ItemLayer] = [:]
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private var ignoreScrolling: Bool = false
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private var component: GifPagerContentComponent?
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private var pagerEnvironment: PagerComponentChildEnvironment?
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private var theme: PresentationTheme?
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private var itemLayout: ItemLayout?
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override init(frame: CGRect) {
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self.scrollView = UIScrollView()
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super.init(frame: frame)
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self.scrollView.delaysContentTouches = false
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if #available(iOSApplicationExtension 11.0, iOS 11.0, *) {
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self.scrollView.contentInsetAdjustmentBehavior = .never
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}
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if #available(iOS 13.0, *) {
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self.scrollView.automaticallyAdjustsScrollIndicatorInsets = false
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}
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self.scrollView.showsVerticalScrollIndicator = true
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self.scrollView.showsHorizontalScrollIndicator = false
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self.scrollView.delegate = self
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self.addSubview(self.scrollView)
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self.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(self.tapGesture(_:))))
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}
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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@objc private func tapGesture(_ recognizer: UITapGestureRecognizer) {
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if case .ended = recognizer.state {
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if let component = self.component, let item = self.item(atPoint: recognizer.location(in: self)), let itemView = self.visibleItemLayers[item.file.fileId] {
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component.inputInteraction.performItemAction(item, self, self.scrollView.convert(itemView.frame, to: self))
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}
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}
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}
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private func item(atPoint point: CGPoint) -> Item? {
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let localPoint = self.convert(point, to: self.scrollView)
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for (_, itemLayer) in self.visibleItemLayers {
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if itemLayer.frame.contains(localPoint) {
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return itemLayer.item
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}
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}
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return nil
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}
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private var previousScrollingOffset: CGFloat?
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public func scrollViewWillBeginDragging(_ scrollView: UIScrollView) {
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if let presentation = scrollView.layer.presentation() {
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scrollView.bounds = presentation.bounds
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scrollView.layer.removeAllAnimations()
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}
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}
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public func scrollViewDidScroll(_ scrollView: UIScrollView) {
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if self.ignoreScrolling {
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return
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}
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self.updateVisibleItems(attemptSynchronousLoads: false)
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self.updateScrollingOffset(transition: .immediate)
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}
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public func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) {
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if velocity.y != 0.0 {
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targetContentOffset.pointee.y = self.snappedContentOffset(proposedOffset: targetContentOffset.pointee.y)
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}
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}
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public func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool) {
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if !decelerate {
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self.snapScrollingOffsetToInsets()
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}
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}
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public func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
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self.snapScrollingOffsetToInsets()
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}
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private func updateScrollingOffset(transition: Transition) {
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let isInteracting = scrollView.isDragging || scrollView.isTracking || scrollView.isDecelerating
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if let previousScrollingOffsetValue = self.previousScrollingOffset {
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let currentBounds = scrollView.bounds
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let offsetToTopEdge = max(0.0, currentBounds.minY - 0.0)
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let offsetToBottomEdge = max(0.0, scrollView.contentSize.height - currentBounds.maxY)
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let relativeOffset = scrollView.contentOffset.y - previousScrollingOffsetValue
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self.pagerEnvironment?.onChildScrollingUpdate(PagerComponentChildEnvironment.ContentScrollingUpdate(
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relativeOffset: relativeOffset,
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absoluteOffsetToTopEdge: offsetToTopEdge,
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absoluteOffsetToBottomEdge: offsetToBottomEdge,
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isInteracting: isInteracting,
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transition: transition
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))
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self.previousScrollingOffset = scrollView.contentOffset.y
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}
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self.previousScrollingOffset = scrollView.contentOffset.y
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}
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private func snappedContentOffset(proposedOffset: CGFloat) -> CGFloat {
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guard let pagerEnvironment = self.pagerEnvironment else {
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return proposedOffset
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}
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var proposedOffset = proposedOffset
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let bounds = self.bounds
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if proposedOffset + bounds.height > self.scrollView.contentSize.height - pagerEnvironment.containerInsets.bottom {
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proposedOffset = self.scrollView.contentSize.height - bounds.height
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}
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if proposedOffset < pagerEnvironment.containerInsets.top {
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proposedOffset = 0.0
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}
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return proposedOffset
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}
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private func snapScrollingOffsetToInsets() {
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let transition = Transition(animation: .curve(duration: 0.4, curve: .spring))
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var currentBounds = self.scrollView.bounds
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currentBounds.origin.y = self.snappedContentOffset(proposedOffset: currentBounds.minY)
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transition.setBounds(view: self.scrollView, bounds: currentBounds)
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self.updateScrollingOffset(transition: transition)
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}
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private func updateVisibleItems(attemptSynchronousLoads: Bool) {
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guard let component = self.component, let theme = self.theme, let itemLayout = self.itemLayout else {
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return
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}
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var validIds = Set<MediaId>()
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if let itemRange = itemLayout.visibleItems(for: self.scrollView.bounds) {
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for index in itemRange.lowerBound ..< itemRange.upperBound {
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let item = component.items[index]
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let itemId = item.file.fileId
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validIds.insert(itemId)
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let itemLayer: ItemLayer
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if let current = self.visibleItemLayers[itemId] {
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itemLayer = current
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} else {
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itemLayer = ItemLayer(
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item: item,
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context: component.context,
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groupId: "savedGif",
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attemptSynchronousLoad: attemptSynchronousLoads,
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file: item.file,
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placeholderColor: theme.chat.inputMediaPanel.stickersBackgroundColor
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)
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self.scrollView.layer.addSublayer(itemLayer)
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self.visibleItemLayers[itemId] = itemLayer
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}
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itemLayer.frame = itemLayout.frame(at: index)
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itemLayer.isVisibleForAnimations = true
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}
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}
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var removedIds: [MediaId] = []
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for (id, itemLayer) in self.visibleItemLayers {
|
|
if !validIds.contains(id) {
|
|
removedIds.append(id)
|
|
itemLayer.removeFromSuperlayer()
|
|
}
|
|
}
|
|
for id in removedIds {
|
|
self.visibleItemLayers.removeValue(forKey: id)
|
|
}
|
|
}
|
|
|
|
func update(component: GifPagerContentComponent, availableSize: CGSize, state: EmptyComponentState, environment: Environment<EnvironmentType>, transition: Transition) -> CGSize {
|
|
self.component = component
|
|
self.theme = environment[EntityKeyboardChildEnvironment.self].value.theme
|
|
|
|
let pagerEnvironment = environment[PagerComponentChildEnvironment.self].value
|
|
self.pagerEnvironment = pagerEnvironment
|
|
|
|
let itemLayout = ItemLayout(
|
|
width: availableSize.width,
|
|
containerInsets: UIEdgeInsets(top: pagerEnvironment.containerInsets.top, left: pagerEnvironment.containerInsets.left, bottom: pagerEnvironment.containerInsets.bottom, right: pagerEnvironment.containerInsets.right),
|
|
itemCount: component.items.count
|
|
)
|
|
self.itemLayout = itemLayout
|
|
|
|
self.ignoreScrolling = true
|
|
transition.setFrame(view: self.scrollView, frame: CGRect(origin: CGPoint(), size: availableSize))
|
|
if self.scrollView.contentSize != itemLayout.contentSize {
|
|
self.scrollView.contentSize = itemLayout.contentSize
|
|
}
|
|
if self.scrollView.scrollIndicatorInsets != pagerEnvironment.containerInsets {
|
|
self.scrollView.scrollIndicatorInsets = pagerEnvironment.containerInsets
|
|
}
|
|
self.previousScrollingOffset = self.scrollView.contentOffset.y
|
|
self.ignoreScrolling = false
|
|
|
|
self.updateVisibleItems(attemptSynchronousLoads: true)
|
|
|
|
return availableSize
|
|
}
|
|
}
|
|
|
|
public func makeView() -> View {
|
|
return View(frame: CGRect())
|
|
}
|
|
|
|
public func update(view: View, availableSize: CGSize, state: EmptyComponentState, environment: Environment<EnvironmentType>, transition: Transition) -> CGSize {
|
|
return view.update(component: self, availableSize: availableSize, state: state, environment: environment, transition: transition)
|
|
}
|
|
}
|
|
|