118 lines
4.0 KiB
Swift
118 lines
4.0 KiB
Swift
//
|
|
// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
|
|
//
|
|
|
|
import Foundation
|
|
|
|
@objc
|
|
public class MediaUploadView: UIView {
|
|
|
|
// MARK: -
|
|
|
|
private let attachmentId: String
|
|
private let radius: CGFloat
|
|
private let shapeLayer1 = CAShapeLayer()
|
|
private let shapeLayer2 = CAShapeLayer()
|
|
|
|
private var isAttachmentReady: Bool = false
|
|
private var lastProgress: CGFloat = 0
|
|
|
|
@objc
|
|
public required init(attachmentId: String, radius: CGFloat) {
|
|
self.attachmentId = attachmentId
|
|
self.radius = radius
|
|
|
|
super.init(frame: .zero)
|
|
|
|
layer.addSublayer(shapeLayer1)
|
|
layer.addSublayer(shapeLayer2)
|
|
|
|
NotificationCenter.default.addObserver(forName: NSNotification.Name.attachmentUploadProgress, object: nil, queue: nil) { [weak self] notification in
|
|
guard let strongSelf = self else { return }
|
|
guard let notificationAttachmentId = notification.userInfo?[kAttachmentUploadAttachmentIDKey] as? String else {
|
|
return
|
|
}
|
|
guard notificationAttachmentId == strongSelf.attachmentId else {
|
|
return
|
|
}
|
|
guard let progress = notification.userInfo?[kAttachmentUploadProgressKey] as? NSNumber else {
|
|
return
|
|
}
|
|
strongSelf.lastProgress = CGFloat(progress.floatValue)
|
|
strongSelf.updateLayers()
|
|
}
|
|
}
|
|
|
|
@available(*, unavailable, message: "use other init() instead.")
|
|
required public init?(coder aDecoder: NSCoder) {
|
|
notImplemented()
|
|
}
|
|
|
|
deinit {
|
|
NotificationCenter.default.removeObserver(self)
|
|
}
|
|
|
|
@objc public override var bounds: CGRect {
|
|
didSet {
|
|
if oldValue != bounds {
|
|
updateLayers()
|
|
}
|
|
}
|
|
}
|
|
|
|
@objc public override var frame: CGRect {
|
|
didSet {
|
|
if oldValue != frame {
|
|
updateLayers()
|
|
}
|
|
}
|
|
}
|
|
|
|
internal func updateLayers() {
|
|
AssertIsOnMainThread()
|
|
|
|
shapeLayer1.frame = self.bounds
|
|
shapeLayer2.frame = self.bounds
|
|
|
|
guard !isAttachmentReady else {
|
|
shapeLayer1.path = nil
|
|
shapeLayer2.path = nil
|
|
return
|
|
}
|
|
|
|
// Prevent the shape layer from animating changes.
|
|
CATransaction.begin()
|
|
CATransaction.setDisableActions(true)
|
|
|
|
let center = CGPoint(x: self.bounds.width * 0.5,
|
|
y: self.bounds.height * 0.5)
|
|
let outerRadius: CGFloat = radius * 1.0
|
|
let innerRadius: CGFloat = radius * 0.9
|
|
let startAngle: CGFloat = CGFloat.pi * 1.5
|
|
let endAngle: CGFloat = CGFloat.pi * (1.5 + 2 * lastProgress)
|
|
|
|
let bezierPath1 = UIBezierPath()
|
|
bezierPath1.addArc(withCenter: center, radius: outerRadius, startAngle: startAngle, endAngle: endAngle, clockwise: true)
|
|
bezierPath1.addArc(withCenter: center, radius: innerRadius, startAngle: endAngle, endAngle: startAngle, clockwise: false)
|
|
shapeLayer1.path = bezierPath1.cgPath
|
|
shapeLayer1.fillColor = UIColor.ows_white.cgColor
|
|
|
|
let innerCircleBounds = CGRect(x: center.x - innerRadius,
|
|
y: center.y - innerRadius,
|
|
width: innerRadius * 2,
|
|
height: innerRadius * 2)
|
|
let outerCircleBounds = CGRect(x: center.x - outerRadius,
|
|
y: center.y - outerRadius,
|
|
width: outerRadius * 2,
|
|
height: outerRadius * 2)
|
|
let bezierPath2 = UIBezierPath()
|
|
bezierPath2.append(UIBezierPath(ovalIn: innerCircleBounds))
|
|
bezierPath2.append(UIBezierPath(ovalIn: outerCircleBounds))
|
|
shapeLayer2.path = bezierPath2.cgPath
|
|
shapeLayer2.fillColor = UIColor(white: 1.0, alpha: 0.4).cgColor
|
|
shapeLayer2.fillRule = CAShapeLayerFillRule.evenOdd
|
|
|
|
CATransaction.commit()
|
|
}
|
|
}
|