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Code Issues Packages Projects Releases Wiki Activity

Fixes

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This commit is contained in:
Ilya Laktyushin
2020-02-18 22:15:48 +04:00
parent 6b728791c9
commit 76b4d87922
11 changed files with 240 additions and 119 deletions
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67
submodules/GalleryUI/Sources/ZoomableContentGalleryItemNode.swift
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@@ -3,36 +3,8 @@ import UIKit
import Display
import AsyncDisplayKit
private let leftFadeImage = generateImage(CGSize(width: 64.0, height: 1.0), opaque: false, rotatedContext: { size, context in
let bounds = CGRect(origin: CGPoint(), size: size)
context.clear(bounds)
let gradientColors = [UIColor.black.withAlphaComponent(0.35).cgColor, UIColor.black.withAlphaComponent(0.0).cgColor] as CFArray
var locations: [CGFloat] = [0.0, 1.0]
let colorSpace = CGColorSpaceCreateDeviceRGB()
let gradient = CGGradient(colorsSpace: colorSpace, colors: gradientColors, locations: &locations)!
context.drawLinearGradient(gradient, start: CGPoint(x: 0.0, y: 0.0), end: CGPoint(x: 64.0, y: 0.0), options: CGGradientDrawingOptions())
})
private let rightFadeImage = generateImage(CGSize(width: 64.0, height: 1.0), opaque: false, rotatedContext: { size, context in
let bounds = CGRect(origin: CGPoint(), size: size)
context.clear(bounds)
let gradientColors = [UIColor.black.withAlphaComponent(0.0).cgColor, UIColor.black.withAlphaComponent(0.35).cgColor] as CFArray
var locations: [CGFloat] = [0.0, 1.0]
let colorSpace = CGColorSpaceCreateDeviceRGB()
let gradient = CGGradient(colorsSpace: colorSpace, colors: gradientColors, locations: &locations)!
context.drawLinearGradient(gradient, start: CGPoint(x: 0.0, y: 0.0), end: CGPoint(x: 64.0, y: 0.0), options: CGGradientDrawingOptions())
})
open class ZoomableContentGalleryItemNode: GalleryItemNode, UIScrollViewDelegate {
public let scrollNode: ASScrollNode
private let leftFadeNode: ASImageNode
private let rightFadeNode: ASImageNode
private var containerLayout: ContainerViewLayout?
@@ -59,17 +31,7 @@ open class ZoomableContentGalleryItemNode: GalleryItemNode, UIScrollViewDelegate
if #available(iOSApplicationExtension 11.0, iOS 11.0, *) {
self.scrollNode.view.contentInsetAdjustmentBehavior = .never
}
self.leftFadeNode = ASImageNode()
self.leftFadeNode.contentMode = .scaleToFill
self.leftFadeNode.image = leftFadeImage
self.leftFadeNode.alpha = 0.0
self.rightFadeNode = ASImageNode()
self.rightFadeNode.contentMode = .scaleToFill
self.rightFadeNode.image = rightFadeImage
self.rightFadeNode.alpha = 0.0
super.init()
self.scrollNode.view.delegate = self
@@ -91,38 +53,17 @@ open class ZoomableContentGalleryItemNode: GalleryItemNode, UIScrollViewDelegate
}
return .waitForDoubleTap
}
tapRecognizer.highlight = { [weak self] location in
if let strongSelf = self {
let pointInNode = location.flatMap { strongSelf.scrollNode.view.convert($0, to: strongSelf.view) }
let transition: ContainedViewLayoutTransition = .animated(duration: 0.07, curve: .easeInOut)
if let location = pointInNode, location.x < edgeWidth && strongSelf.canGoToPreviousItem() {
transition.updateAlpha(node: strongSelf.leftFadeNode, alpha: 1.0)
} else {
transition.updateAlpha(node: strongSelf.leftFadeNode, alpha: 0.0)
}
if let location = pointInNode, location.x > strongSelf.frame.width - edgeWidth && strongSelf.canGoToNextItem() {
transition.updateAlpha(node: strongSelf.rightFadeNode, alpha: 1.0)
} else {
transition.updateAlpha(node: strongSelf.rightFadeNode, alpha: 0.0)
}
}
}
self.scrollNode.view.addGestureRecognizer(tapRecognizer)
self.addSubnode(self.scrollNode)
self.addSubnode(self.leftFadeNode)
self.addSubnode(self.rightFadeNode)
}
@objc open func contentTap(_ recognizer: TapLongTapOrDoubleTapGestureRecognizer) {
if recognizer.state == .ended {
if let (gesture, location) = recognizer.lastRecognizedGestureAndLocation {
let pointInNode = self.scrollNode.view.convert(location, to: self.view)
if pointInNode.x < 44.0 {
self.goToPreviousItem()
} else if pointInNode.x > self.frame.width - 44.0 {
self.goToNextItem()
if pointInNode.x < 44.0 || pointInNode.x > self.frame.width - 44.0 {
} else {
switch gesture {
case .tap:
@@ -164,10 +105,6 @@ open class ZoomableContentGalleryItemNode: GalleryItemNode, UIScrollViewDelegate
}
self.containerLayout = layout
let fadeWidth = min(72.0, layout.size.width * 0.2)
self.leftFadeNode.frame = CGRect(x: 0.0, y: 0.0, width: fadeWidth, height: layout.size.height)
self.rightFadeNode.frame = CGRect(x: layout.size.width - fadeWidth, y: 0.0, width: fadeWidth, height: layout.size.height)
if shouldResetContents {
var previousFrame: CGRect?
var previousScale: CGFloat?