import Foundation
import UIKit
import Display
import SwiftSignalKit
import AccountContext
import TelegramCore
import AnimatedStickerNode
import TelegramAnimatedStickerNode
import StickerResources
import MediaEditor
private func generateIcon(style: DrawingLocationEntity.Style) -> UIImage? {
guard let image = UIImage(bundleImageName: "Chat/Attach Menu/Location") else {
return nil
}
return generateImage(image.size, contextGenerator: { size, context in
context.clear(CGRect(origin: .zero, size: size))
if let cgImage = image.cgImage {
context.clip(to: CGRect(origin: .zero, size: size), mask: cgImage)
}
if [.black, .white].contains(style) {
let green: UIColor
let blue: UIColor
if case .black = style {
green = UIColor(rgb: 0x3EF588)
blue = UIColor(rgb: 0x4FAAFF)
} else {
green = UIColor(rgb: 0x1EBD5E)
blue = UIColor(rgb: 0x1C92FF)
}
var locations: [CGFloat] = [0.0, 1.0]
let colorsArray = [green.cgColor, blue.cgColor] as NSArray
let colorSpace = CGColorSpaceCreateDeviceRGB()
let gradient = CGGradient(colorsSpace: colorSpace, colors: colorsArray, locations: &locations)!
context.drawLinearGradient(gradient, start: CGPoint(x: size.width, y: size.height), end: CGPoint(x: 0.0, y: 0.0), options: CGGradientDrawingOptions())
} else {
context.setFillColor(UIColor.white.cgColor)
context.fill(CGRect(origin: .zero, size: size))
}
})
}
public final class DrawingLocationEntityView: DrawingEntityView, UITextViewDelegate {
private var locationEntity: DrawingLocationEntity {
return self.entity as! DrawingLocationEntity
}
let backgroundView: UIView
let blurredBackgroundView: BlurredBackgroundView
let textView: DrawingTextView
let iconView: UIImageView
private let imageNode: TransformImageNode
private var animationNode: AnimatedStickerNode?
private var didSetUpAnimationNode = false
private let stickerFetchedDisposable = MetaDisposable()
private let cachedDisposable = MetaDisposable()
init(context: AccountContext, entity: DrawingLocationEntity) {
self.backgroundView = UIView()
self.backgroundView.clipsToBounds = true
self.blurredBackgroundView = BlurredBackgroundView(color: UIColor(white: 0.0, alpha: 0.25), enableBlur: true)
self.blurredBackgroundView.clipsToBounds = true
self.textView = DrawingTextView(frame: .zero)
self.textView.clipsToBounds = false
self.textView.backgroundColor = .clear
self.textView.isEditable = false
self.textView.isSelectable = false
self.textView.contentInset = .zero
self.textView.showsHorizontalScrollIndicator = false
self.textView.showsVerticalScrollIndicator = false
self.textView.scrollsToTop = false
self.textView.isScrollEnabled = false
self.textView.textContainerInset = .zero
self.textView.minimumZoomScale = 1.0
self.textView.maximumZoomScale = 1.0
self.textView.keyboardAppearance = .dark
self.textView.autocorrectionType = .default
self.textView.spellCheckingType = .no
self.textView.textContainer.maximumNumberOfLines = 2
self.textView.textContainer.lineBreakMode = .byTruncatingTail
self.iconView = UIImageView()
self.imageNode = TransformImageNode()
super.init(context: context, entity: entity)
self.textView.delegate = self
self.addSubview(self.backgroundView)
self.addSubview(self.blurredBackgroundView)
self.addSubview(self.textView)
self.addSubview(self.iconView)
self.update(animated: false)
self.setup()
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
private var textSize: CGSize = .zero
public override func sizeThatFits(_ size: CGSize) -> CGSize {
var result = self.textView.sizeThatFits(CGSize(width: self.locationEntity.width, height: .greatestFiniteMagnitude))
self.textSize = result
let widthExtension: CGFloat
if self.locationEntity.icon != nil {
widthExtension = result.height * 0.77
} else {
widthExtension = result.height * 0.65
}
result.width = floorToScreenPixels(max(224.0, ceil(result.width) + 20.0) + widthExtension)
result.height = ceil(result.height * 1.2);
return result;
}
public override func sizeToFit() {
let center = self.center
let transform = self.transform
self.transform = .identity
super.sizeToFit()
self.center = center
self.transform = transform
}
public override func layoutSubviews() {
super.layoutSubviews()
let iconSize: CGFloat
let iconOffset: CGFloat
if self.locationEntity.icon != nil {
iconSize = min(80.0, floor(self.bounds.height * 0.7))
iconOffset = 0.2
} else {
iconSize = min(76.0, floor(self.bounds.height * 0.6))
iconOffset = 0.3
}
self.iconView.frame = CGRect(origin: CGPoint(x: floorToScreenPixels(iconSize * iconOffset), y: floorToScreenPixels((self.bounds.height - iconSize) / 2.0)), size: CGSize(width: iconSize, height: iconSize))
self.imageNode.frame = self.iconView.frame.offsetBy(dx: 0.0, dy: 2.0)
let imageSize = CGSize(width: iconSize, height: iconSize)
self.imageNode.asyncLayout()(TransformImageArguments(corners: ImageCorners(), imageSize: imageSize, boundingSize: imageSize, intrinsicInsets: UIEdgeInsets()))()
self.textView.frame = CGRect(origin: CGPoint(x: self.bounds.width - self.textSize.width - 6.0, y: floorToScreenPixels((self.bounds.height - self.textSize.height) / 2.0)), size: self.textSize)
self.backgroundView.frame = self.bounds
self.blurredBackgroundView.frame = self.bounds
self.blurredBackgroundView.update(size: self.bounds.size, transition: .immediate)
}
override func selectedTapAction() -> Bool {
let values = [self.entity.scale, self.entity.scale * 0.93, self.entity.scale]
let keyTimes = [0.0, 0.33, 1.0]
self.layer.animateKeyframes(values: values as [NSNumber], keyTimes: keyTimes as [NSNumber], duration: 0.3, keyPath: "transform.scale")
let updatedStyle: DrawingLocationEntity.Style
switch self.locationEntity.style {
case .white:
updatedStyle = .black
case .black:
updatedStyle = .transparent
case .transparent:
if self.locationEntity.hasCustomColor {
updatedStyle = .custom
} else {
updatedStyle = .white
}
case .custom:
updatedStyle = .white
case .blur:
updatedStyle = .white
}
self.locationEntity.style = updatedStyle
self.update()
return true
}
private var displayFontSize: CGFloat {
var textFontSize: CGFloat = 0.07
let textLength = self.locationEntity.title.count
if textLength > 10 {
textFontSize = max(0.01, 0.07 - CGFloat(textLength - 10) / 100.0)
}
let minFontSize = max(10.0, max(self.locationEntity.referenceDrawingSize.width, self.locationEntity.referenceDrawingSize.height) * 0.025)
let maxFontSize = max(10.0, max(self.locationEntity.referenceDrawingSize.width, self.locationEntity.referenceDrawingSize.height) * 0.25)
let fontSize = minFontSize + (maxFontSize - minFontSize) * textFontSize
return fontSize
}
private func updateText() {
let text = NSMutableAttributedString(string: self.locationEntity.title.uppercased())
let range = NSMakeRange(0, text.length)
let fontSize = self.displayFontSize
self.textView.drawingLayoutManager.textContainers.first?.lineFragmentPadding = floor(fontSize * 0.24)
let font = Font.with(size: fontSize, design: .camera, weight: .semibold)
text.addAttribute(.font, value: font, range: range)
text.addAttribute(.kern, value: -3.5 as NSNumber, range: range)
self.textView.font = font
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .left
text.addAttribute(.paragraphStyle, value: paragraphStyle, range: range)
let textColor: UIColor
switch self.locationEntity.style {
case .white:
textColor = .black
case .black, .transparent, .blur:
textColor = .white
case .custom:
let color = self.locationEntity.color.toUIColor()
if color.lightness > 0.705 {
textColor = .black
} else {
textColor = .white
}
}
text.addAttribute(.foregroundColor, value: textColor, range: range)
self.textView.attributedText = text
self.textView.visualText = text
}
private var currentStyle: DrawingLocationEntity.Style?
public override func update(animated: Bool = false) {
self.center = self.locationEntity.position
self.transform = CGAffineTransformScale(CGAffineTransformMakeRotation(self.locationEntity.rotation), self.locationEntity.scale, self.locationEntity.scale)
self.textView.frameInsets = UIEdgeInsets(top: 0.15, left: 0.0, bottom: 0.15, right: 0.0)
switch self.locationEntity.style {
case .white:
self.textView.textColor = .black
self.backgroundView.backgroundColor = .white
self.backgroundView.isHidden = false
self.blurredBackgroundView.isHidden = true
case .black:
self.textView.textColor = .white
self.backgroundView.backgroundColor = .black
self.backgroundView.isHidden = false
self.blurredBackgroundView.isHidden = true
case .transparent:
self.textView.textColor = .white
self.backgroundView.backgroundColor = UIColor(rgb: 0x000000, alpha: 0.2)
self.backgroundView.isHidden = false
self.blurredBackgroundView.isHidden = true
case .custom:
let color = self.locationEntity.color.toUIColor()
let textColor: UIColor
if color.lightness > 0.705 {
textColor = .black
} else {
textColor = .white
}
self.textView.textColor = textColor
self.backgroundView.backgroundColor = color
self.backgroundView.isHidden = false
self.blurredBackgroundView.isHidden = true
case .blur:
self.textView.textColor = .white
self.backgroundView.isHidden = true
self.backgroundView.backgroundColor = UIColor(rgb: 0xffffff)
self.blurredBackgroundView.isHidden = false
}
self.textView.textAlignment = .left
self.updateText()
self.sizeToFit()
if self.currentStyle != self.locationEntity.style {
self.currentStyle = self.locationEntity.style
self.iconView.image = generateIcon(style: self.locationEntity.style)
}
self.backgroundView.layer.cornerRadius = self.textSize.height * 0.2
self.blurredBackgroundView.layer.cornerRadius = self.backgroundView.layer.cornerRadius
if #available(iOS 13.0, *) {
self.backgroundView.layer.cornerCurve = .continuous
self.blurredBackgroundView.layer.cornerCurve = .continuous
}
super.update(animated: animated)
}
private func setup() {
if let file = self.locationEntity.icon {
self.iconView.isHidden = true
self.addSubnode(self.imageNode)
if let dimensions = file.dimensions {
if file.isAnimatedSticker || file.isVideoSticker || file.mimeType == "video/webm" {
if self.animationNode == nil {
let animationNode = DefaultAnimatedStickerNodeImpl()
animationNode.autoplay = false
self.animationNode = animationNode
animationNode.started = { [weak self, weak animationNode] in
self?.imageNode.isHidden = true
let _ = animationNode
// if let animationNode = animationNode {
// let _ = (animationNode.status
// |> take(1)
// |> deliverOnMainQueue).start(next: { [weak self] status in
// self?.started?(status.duration)
// })
// }
}
self.addSubnode(animationNode)
if file.isCustomTemplateEmoji {
animationNode.dynamicColor = UIColor(rgb: 0xffffff)
}
}
self.imageNode.setSignal(chatMessageAnimatedSticker(postbox: self.context.account.postbox, userLocation: .other, file: file, small: false, size: dimensions.cgSize.aspectFitted(CGSize(width: 256.0, height: 256.0))))
self.stickerFetchedDisposable.set(freeMediaFileResourceInteractiveFetched(account: self.context.account, userLocation: .other, fileReference: stickerPackFileReference(file), resource: file.resource).start())
} else {
if let animationNode = self.animationNode {
animationNode.visibility = false
self.animationNode = nil
animationNode.removeFromSupernode()
self.imageNode.isHidden = false
self.didSetUpAnimationNode = false
}
self.imageNode.setSignal(chatMessageSticker(account: self.context.account, userLocation: .other, file: file, small: false, synchronousLoad: false))
self.stickerFetchedDisposable.set(freeMediaFileResourceInteractiveFetched(account: self.context.account, userLocation: .other, fileReference: stickerPackFileReference(file), resource: chatMessageStickerResource(file: file, small: false)).start())
}
self.setNeedsLayout()
}
}
}
override func updateSelectionView() {
guard let selectionView = self.selectionView as? DrawingLocationEntitySelectionView else {
return
}
self.pushIdentityTransformForMeasurement()
selectionView.transform = .identity
let bounds = self.selectionBounds
let center = bounds.center
let scale = self.superview?.superview?.layer.value(forKeyPath: "transform.scale.x") as? CGFloat ?? 1.0
selectionView.center = self.convert(center, to: selectionView.superview)
selectionView.bounds = CGRect(origin: .zero, size: CGSize(width: (bounds.width * self.locationEntity.scale) * scale + selectionView.selectionInset * 2.0, height: (bounds.height * self.locationEntity.scale) * scale + selectionView.selectionInset * 2.0))
selectionView.transform = CGAffineTransformMakeRotation(self.locationEntity.rotation)
self.popIdentityTransformForMeasurement()
}
override func makeSelectionView() -> DrawingEntitySelectionView? {
if let selectionView = self.selectionView {
return selectionView
}
let selectionView = DrawingLocationEntitySelectionView()
selectionView.entityView = self
return selectionView
}
func getRenderImage() -> UIImage? {
let rect = self.bounds
UIGraphicsBeginImageContextWithOptions(rect.size, false, 2.0)
self.drawHierarchy(in: rect, afterScreenUpdates: true)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return image
}
func getRenderSubEntities() -> [DrawingEntity] {
return []
}
}
final class DrawingLocationEntitySelectionView: DrawingEntitySelectionView {
private let border = SimpleShapeLayer()
private let leftHandle = SimpleShapeLayer()
private let rightHandle = SimpleShapeLayer()
private var longPressGestureRecognizer: UILongPressGestureRecognizer?
override init(frame: CGRect) {
let handleBounds = CGRect(origin: .zero, size: entitySelectionViewHandleSize)
let handles = [
self.leftHandle,
self.rightHandle
]
super.init(frame: frame)
self.backgroundColor = .clear
self.isOpaque = false
self.border.lineCap = .round
self.border.fillColor = UIColor.clear.cgColor
self.border.strokeColor = UIColor(rgb: 0xffffff, alpha: 0.75).cgColor
self.layer.addSublayer(self.border)
for handle in handles {
handle.bounds = handleBounds
handle.fillColor = UIColor(rgb: 0x0a60ff).cgColor
handle.strokeColor = UIColor(rgb: 0xffffff).cgColor
handle.rasterizationScale = UIScreen.main.scale
handle.shouldRasterize = true
self.layer.addSublayer(handle)
}
self.snapTool.onSnapUpdated = { [weak self] type, snapped in
if let self, let entityView = self.entityView {
entityView.onSnapUpdated(type, snapped)
}
}
let longPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(self.handleLongPress(_:)))
self.addGestureRecognizer(longPressGestureRecognizer)
self.longPressGestureRecognizer = longPressGestureRecognizer
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
var scale: CGFloat = 1.0 {
didSet {
self.setNeedsLayout()
}
}
override var selectionInset: CGFloat {
return 15.0
}
override func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
return true
}
private let snapTool = DrawingEntitySnapTool()
@objc private func handleLongPress(_ gestureRecognizer: UILongPressGestureRecognizer) {
if case .began = gestureRecognizer.state {
self.longPressed()
}
}
private var currentHandle: CALayer?
override func handlePan(_ gestureRecognizer: UIPanGestureRecognizer) {
guard let entityView = self.entityView, let entity = entityView.entity as? DrawingLocationEntity else {
return
}
let location = gestureRecognizer.location(in: self)
switch gestureRecognizer.state {
case .began:
self.tapGestureRecognizer?.isEnabled = false
self.tapGestureRecognizer?.isEnabled = true
self.longPressGestureRecognizer?.isEnabled = false
self.longPressGestureRecognizer?.isEnabled = true
self.snapTool.maybeSkipFromStart(entityView: entityView, position: entity.position)
if let sublayers = self.layer.sublayers {
for layer in sublayers {
if layer.frame.contains(location) {
self.currentHandle = layer
self.snapTool.maybeSkipFromStart(entityView: entityView, rotation: entity.rotation)
entityView.onInteractionUpdated(true)
return
}
}
}
self.currentHandle = self.layer
entityView.onInteractionUpdated(true)
case .changed:
if self.currentHandle == nil {
self.currentHandle = self.layer
}
let delta = gestureRecognizer.translation(in: entityView.superview)
let parentLocation = gestureRecognizer.location(in: self.superview)
let velocity = gestureRecognizer.velocity(in: entityView.superview)
var updatedScale = entity.scale
var updatedPosition = entity.position
var updatedRotation = entity.rotation
if self.currentHandle === self.leftHandle || self.currentHandle === self.rightHandle {
if gestureRecognizer.numberOfTouches > 1 {
return
}
var deltaX = gestureRecognizer.translation(in: self).x
if self.currentHandle === self.leftHandle {
deltaX *= -1.0
}
let scaleDelta = (self.bounds.size.width + deltaX * 2.0) / self.bounds.size.width
updatedScale = max(0.01, updatedScale * scaleDelta)
let newAngle: CGFloat
if self.currentHandle === self.leftHandle {
newAngle = atan2(self.center.y - parentLocation.y, self.center.x - parentLocation.x)
} else {
newAngle = atan2(parentLocation.y - self.center.y, parentLocation.x - self.center.x)
}
var delta = newAngle - updatedRotation
if delta < -.pi {
delta = 2.0 * .pi + delta
}
let velocityValue = sqrt(velocity.x * velocity.x + velocity.y * velocity.y) / 1000.0
updatedRotation = self.snapTool.update(entityView: entityView, velocity: velocityValue, delta: delta, updatedRotation: newAngle, skipMultiplier: 1.0)
} else if self.currentHandle === self.layer {
updatedPosition.x += delta.x
updatedPosition.y += delta.y
updatedPosition = self.snapTool.update(entityView: entityView, velocity: velocity, delta: delta, updatedPosition: updatedPosition, size: entityView.frame.size)
}
entity.scale = updatedScale
entity.position = updatedPosition
entity.rotation = updatedRotation
entityView.update()
gestureRecognizer.setTranslation(.zero, in: entityView)
case .ended, .cancelled:
self.snapTool.reset()
if self.currentHandle != nil {
self.snapTool.rotationReset()
}
entityView.onInteractionUpdated(false)
default:
break
}
entityView.onPositionUpdated(entity.position)
}
override func handlePinch(_ gestureRecognizer: UIPinchGestureRecognizer) {
guard let entityView = self.entityView as? DrawingLocationEntityView, let entity = entityView.entity as? DrawingLocationEntity else {
return
}
switch gestureRecognizer.state {
case .began, .changed:
if case .began = gestureRecognizer.state {
entityView.onInteractionUpdated(true)
}
let scale = gestureRecognizer.scale
entity.scale = max(0.1, entity.scale * scale)
entityView.update()
gestureRecognizer.scale = 1.0
case .ended, .cancelled:
entityView.onInteractionUpdated(false)
default:
break
}
}
override func handleRotate(_ gestureRecognizer: UIRotationGestureRecognizer) {
guard let entityView = self.entityView as? DrawingLocationEntityView, let entity = entityView.entity as? DrawingLocationEntity else {
return
}
let velocity = gestureRecognizer.velocity
var updatedRotation = entity.rotation
var rotation: CGFloat = 0.0
switch gestureRecognizer.state {
case .began:
self.snapTool.maybeSkipFromStart(entityView: entityView, rotation: entity.rotation)
entityView.onInteractionUpdated(true)
case .changed:
rotation = gestureRecognizer.rotation
updatedRotation += rotation
updatedRotation = self.snapTool.update(entityView: entityView, velocity: velocity, delta: rotation, updatedRotation: updatedRotation)
entity.rotation = updatedRotation
entityView.update()
gestureRecognizer.rotation = 0.0
case .ended, .cancelled:
self.snapTool.rotationReset()
entityView.onInteractionUpdated(false)
default:
break
}
entityView.onPositionUpdated(entity.position)
}
override func point(inside point: CGPoint, with event: UIEvent?) -> Bool {
return self.bounds.insetBy(dx: -22.0, dy: -22.0).contains(point)
}
override func layoutSubviews() {
let inset = self.selectionInset - 10.0
let bounds = CGRect(origin: .zero, size: CGSize(width: entitySelectionViewHandleSize.width / self.scale, height: entitySelectionViewHandleSize.height / self.scale))
let handleSize = CGSize(width: 9.0 / self.scale, height: 9.0 / self.scale)
let handlePath = CGPath(ellipseIn: CGRect(origin: CGPoint(x: (bounds.width - handleSize.width) / 2.0, y: (bounds.height - handleSize.height) / 2.0), size: handleSize), transform: nil)
let lineWidth = (1.0 + UIScreenPixel) / self.scale
let handles = [
self.leftHandle,
self.rightHandle
]
for handle in handles {
handle.path = handlePath
handle.bounds = bounds
handle.lineWidth = lineWidth
}
self.leftHandle.position = CGPoint(x: inset, y: self.bounds.midY)
self.rightHandle.position = CGPoint(x: self.bounds.maxX - inset, y: self.bounds.midY)
let width: CGFloat = self.bounds.width - inset * 2.0
let height: CGFloat = self.bounds.height - inset * 2.0
let cornerRadius: CGFloat = 12.0 - self.scale
let perimeter: CGFloat = 2.0 * (width + height - cornerRadius * (4.0 - .pi))
let count = 12
let relativeDashLength: CGFloat = 0.25
let dashLength = perimeter / CGFloat(count)
self.border.lineDashPattern = [dashLength * relativeDashLength, dashLength * relativeDashLength] as [NSNumber]
self.border.lineWidth = 2.0 / self.scale
self.border.path = UIBezierPath(roundedRect: CGRect(origin: CGPoint(x: inset, y: inset), size: CGSize(width: width, height: height)), cornerRadius: cornerRadius).cgPath
}
}