mirror of
https://github.com/Swiftgram/Telegram-iOS.git
synced 2025-06-15 21:45:19 +00:00
804 lines
35 KiB
Swift
804 lines
35 KiB
Swift
import Foundation
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import UIKit
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import UIKit.UIGestureRecognizerSubclass
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import AsyncDisplayKit
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import Display
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import TelegramPresentationData
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import TextFormat
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private extension CGRect {
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var center: CGPoint {
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return CGPoint(x: self.midX, y: self.midY)
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}
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}
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private func findScrollView(view: UIView?) -> UIScrollView? {
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if let view = view {
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if let view = view as? UIScrollView {
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return view
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}
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return findScrollView(view: view.superview)
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} else {
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return nil
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}
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}
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private func cancelScrollViewGestures(view: UIView?) {
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if let view = view {
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if let gestureRecognizers = view.gestureRecognizers {
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for recognizer in gestureRecognizers {
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if let recognizer = recognizer as? UIPanGestureRecognizer {
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switch recognizer.state {
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case .began, .possible:
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recognizer.state = .ended
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default:
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break
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}
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}
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}
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}
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cancelScrollViewGestures(view: view.superview)
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}
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}
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private func generateKnobImage(color: UIColor, diameter: CGFloat, inverted: Bool = false) -> UIImage? {
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let f: (CGSize, CGContext) -> Void = { size, context in
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context.clear(CGRect(origin: CGPoint(), size: size))
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context.setFillColor(color.cgColor)
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context.fill(CGRect(origin: CGPoint(x: (size.width - 2.0) / 2.0, y: size.width / 2.0), size: CGSize(width: 2.0, height: size.height - size.width / 2.0 - 1.0)))
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context.fillEllipse(in: CGRect(origin: CGPoint(x: floor((size.width - diameter) / 2.0), y: floor((size.width - diameter) / 2.0)), size: CGSize(width: diameter, height: diameter)))
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context.fillEllipse(in: CGRect(origin: CGPoint(x: (size.width - 2.0) / 2.0, y: size.width + 2.0), size: CGSize(width: 2.0, height: 2.0)))
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}
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let size = CGSize(width: 12.0, height: 12.0 + 2.0 + 2.0)
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if inverted {
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return generateImage(size, contextGenerator: f)?.stretchableImage(withLeftCapWidth: Int(size.width / 2.0), topCapHeight: Int(size.height) - (Int(size.width) + 1))
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} else {
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return generateImage(size, rotatedContext: f)?.stretchableImage(withLeftCapWidth: Int(size.width / 2.0), topCapHeight: Int(size.width) + 1)
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}
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}
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public final class TextSelectionTheme {
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public let selection: UIColor
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public let knob: UIColor
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public let knobDiameter: CGFloat
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public let isDark: Bool
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public init(selection: UIColor, knob: UIColor, knobDiameter: CGFloat = 12.0, isDark: Bool) {
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self.selection = selection
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self.knob = knob
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self.knobDiameter = knobDiameter
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self.isDark = isDark
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}
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}
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private enum Knob {
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case left
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case right
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}
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public final class TextSelectionGestureRecognizer: UIGestureRecognizer, UIGestureRecognizerDelegate {
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private var longTapTimer: Timer?
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private var movingKnob: (Knob, CGPoint, CGPoint)?
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private var currentLocation: CGPoint?
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public var canBeginSelection: ((CGPoint) -> Bool)?
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public var beginSelection: ((CGPoint) -> Void)?
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fileprivate var knobAtPoint: ((CGPoint) -> (Knob, CGPoint)?)?
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fileprivate var moveKnob: ((Knob, CGPoint) -> Void)?
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public var finishedMovingKnob: (() -> Void)?
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public var clearSelection: (() -> Void)?
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public private(set) var didRecognizeTap: Bool = false
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fileprivate var isSelecting: Bool = false
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override public init(target: Any?, action: Selector?) {
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super.init(target: nil, action: nil)
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self.delegate = self
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}
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override public func reset() {
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super.reset()
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self.longTapTimer?.invalidate()
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self.longTapTimer = nil
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self.movingKnob = nil
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self.currentLocation = nil
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}
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override public func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent) {
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super.touchesBegan(touches, with: event)
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let currentLocation = touches.first?.location(in: self.view)
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self.currentLocation = currentLocation
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if let currentLocation = currentLocation {
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if let (knob, knobPosition) = self.knobAtPoint?(currentLocation) {
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self.movingKnob = (knob, knobPosition, currentLocation)
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cancelScrollViewGestures(view: self.view?.superview)
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self.state = .began
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} else if self.canBeginSelection?(currentLocation) ?? true {
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if self.longTapTimer == nil {
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final class TimerTarget: NSObject {
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let f: () -> Void
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init(_ f: @escaping () -> Void) {
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self.f = f
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}
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@objc func event() {
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self.f()
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}
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}
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let longTapTimer = Timer(timeInterval: 0.3, target: TimerTarget({ [weak self] in
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self?.longTapEvent()
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}), selector: #selector(TimerTarget.event), userInfo: nil, repeats: false)
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self.longTapTimer = longTapTimer
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RunLoop.main.add(longTapTimer, forMode: .common)
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}
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} else {
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self.state = .failed
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}
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}
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}
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override public func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent) {
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super.touchesMoved(touches, with: event)
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let currentLocation = touches.first?.location(in: self.view)
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self.currentLocation = currentLocation
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if let (knob, initialKnobPosition, initialGesturePosition) = self.movingKnob, let currentLocation = currentLocation {
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self.moveKnob?(knob, CGPoint(x: initialKnobPosition.x + currentLocation.x - initialGesturePosition.x, y: initialKnobPosition.y + currentLocation.y - initialGesturePosition.y))
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}
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}
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override public func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent) {
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super.touchesEnded(touches, with: event)
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if let longTapTimer = self.longTapTimer {
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self.longTapTimer = nil
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longTapTimer.invalidate()
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if self.isSelecting {
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self.didRecognizeTap = true
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DispatchQueue.main.async { [weak self] in
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self?.didRecognizeTap = false
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}
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}
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self.clearSelection?()
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} else {
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if let _ = self.currentLocation, let _ = self.movingKnob {
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self.finishedMovingKnob?()
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}
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}
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self.state = .ended
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}
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override public func touchesCancelled(_ touches: Set<UITouch>, with event: UIEvent) {
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super.touchesCancelled(touches, with: event)
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self.state = .cancelled
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}
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private func longTapEvent() {
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if let currentLocation = self.currentLocation {
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self.beginSelection?(currentLocation)
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self.state = .ended
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}
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}
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public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {
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return true
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}
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public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive press: UIPress) -> Bool {
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return true
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}
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}
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public final class TextSelectionNodeView: UIView {
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var hitTestImpl: ((CGPoint, UIEvent?) -> UIView?)?
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override public func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
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return self.hitTestImpl?(point, event)
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}
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}
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public enum TextSelectionAction: Equatable {
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case copy
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case share
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case lookup
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case speak
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case translate
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case quote(range: Range<Int>)
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}
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public final class TextSelectionNode: ASDisplayNode {
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private let theme: TextSelectionTheme
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private let strings: PresentationStrings
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private let textNode: TextNodeProtocol
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private let updateIsActive: (Bool) -> Void
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public var canBeginSelection: (CGPoint) -> Bool = { _ in true }
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public var updateRange: ((NSRange?) -> Void)?
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public var presentMenu: ((UIView, CGPoint, [ContextMenuAction]) -> Void)?
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private let present: (ViewController, Any?) -> Void
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private let rootNode: () -> ASDisplayNode?
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private let performAction: (NSAttributedString, TextSelectionAction) -> Void
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private var highlightOverlay: LinkHighlightingNode?
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private let leftKnob: ASImageNode
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private let rightKnob: ASImageNode
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private var currentRange: (Int, Int)?
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private var currentRects: [CGRect]?
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public let highlightAreaNode: ASDisplayNode
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public private(set) var recognizer: TextSelectionGestureRecognizer?
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private var displayLinkAnimator: DisplayLinkAnimator?
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public var enableCopy: Bool = true
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public var enableLookup: Bool = true
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public var enableQuote: Bool = false
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public var enableTranslate: Bool = true
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public var enableShare: Bool = true
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public var menuSkipCoordnateConversion: Bool = false
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public var didRecognizeTap: Bool {
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return self.recognizer?.didRecognizeTap ?? false
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}
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private weak var contextMenu: ContextMenuController?
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public init(theme: TextSelectionTheme, strings: PresentationStrings, textNode: TextNodeProtocol, updateIsActive: @escaping (Bool) -> Void, present: @escaping (ViewController, Any?) -> Void, rootNode: @escaping () -> ASDisplayNode?, externalKnobSurface: UIView? = nil, performAction: @escaping (NSAttributedString, TextSelectionAction) -> Void) {
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self.theme = theme
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self.strings = strings
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self.textNode = textNode
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self.updateIsActive = updateIsActive
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self.present = present
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self.rootNode = rootNode
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self.performAction = performAction
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self.leftKnob = ASImageNode()
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self.leftKnob.isUserInteractionEnabled = false
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self.leftKnob.image = generateKnobImage(color: theme.knob, diameter: theme.knobDiameter)
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self.leftKnob.displaysAsynchronously = false
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self.leftKnob.displayWithoutProcessing = true
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self.leftKnob.alpha = 0.0
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self.rightKnob = ASImageNode()
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self.rightKnob.isUserInteractionEnabled = false
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self.rightKnob.image = generateKnobImage(color: theme.knob, diameter: theme.knobDiameter, inverted: true)
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self.rightKnob.displaysAsynchronously = false
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self.rightKnob.displayWithoutProcessing = true
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self.rightKnob.alpha = 0.0
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self.highlightAreaNode = ASDisplayNode()
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super.init()
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self.setViewBlock({
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return TextSelectionNodeView()
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})
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if let externalKnobSurface {
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externalKnobSurface.addSubnode(self.leftKnob)
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externalKnobSurface.addSubnode(self.rightKnob)
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} else {
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self.addSubnode(self.leftKnob)
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self.addSubnode(self.rightKnob)
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}
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}
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override public func didLoad() {
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super.didLoad()
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(self.view as? TextSelectionNodeView)?.hitTestImpl = { [weak self] point, event in
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return self?.hitTest(point, with: event)
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}
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let recognizer = TextSelectionGestureRecognizer(target: nil, action: nil)
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recognizer.knobAtPoint = { [weak self] point in
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return self?.knobAtPoint(point)
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}
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recognizer.moveKnob = { [weak self] knob, point in
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guard let strongSelf = self, let currentRange = strongSelf.currentRange else {
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return
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}
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let mappedPoint = strongSelf.view.convert(point, to: strongSelf.textNode.view)
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if let stringIndex = strongSelf.textNode.attributesAtPoint(mappedPoint, orNearest: true)?.0 {
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var updatedLeft = currentRange.0
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var updatedRight = currentRange.1
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switch knob {
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case .left:
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updatedLeft = stringIndex
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case .right:
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updatedRight = stringIndex
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}
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if strongSelf.currentRange?.0 != updatedLeft || strongSelf.currentRange?.1 != updatedRight {
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strongSelf.currentRange = (updatedLeft, updatedRight)
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let updatedRange = NSRange(location: min(updatedLeft, updatedRight), length: max(updatedLeft, updatedRight) - min(updatedLeft, updatedRight))
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strongSelf.updateSelection(range: updatedRange, animateIn: false)
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}
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if let scrollView = findScrollView(view: strongSelf.view) {
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let scrollPoint = strongSelf.view.convert(point, to: scrollView)
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scrollView.scrollRectToVisible(CGRect(origin: CGPoint(x: scrollPoint.x, y: scrollPoint.y - 50.0), size: CGSize(width: 1.0, height: 100.0)), animated: false)
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}
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}
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}
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recognizer.finishedMovingKnob = { [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.displayMenu()
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}
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recognizer.beginSelection = { [weak self] point in
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guard let strongSelf = self, let attributedString = strongSelf.textNode.currentText else {
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return
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}
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strongSelf.dismissSelection()
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let mappedPoint = strongSelf.view.convert(point, to: strongSelf.textNode.view)
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var resultRange: NSRange?
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if let stringIndex = strongSelf.textNode.attributesAtPoint(mappedPoint, orNearest: false)?.0 {
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let string = attributedString.string as NSString
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let inputRange = CFRangeMake(0, string.length)
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let flag = UInt(kCFStringTokenizerUnitWord)
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let locale = CFLocaleCopyCurrent()
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let tokenizer = CFStringTokenizerCreate(kCFAllocatorDefault, string as CFString, inputRange, flag, locale)
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var tokenType = CFStringTokenizerAdvanceToNextToken(tokenizer)
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while !tokenType.isEmpty {
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let currentTokenRange = CFStringTokenizerGetCurrentTokenRange(tokenizer)
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if currentTokenRange.location <= stringIndex && currentTokenRange.location + currentTokenRange.length > stringIndex {
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resultRange = NSRange(location: currentTokenRange.location, length: currentTokenRange.length)
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break
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}
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tokenType = CFStringTokenizerAdvanceToNextToken(tokenizer)
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}
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if resultRange == nil {
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resultRange = NSRange(location: stringIndex, length: 1)
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}
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}
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strongSelf.currentRange = resultRange.flatMap {
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($0.lowerBound, $0.upperBound)
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}
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strongSelf.updateSelection(range: resultRange, animateIn: true)
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strongSelf.displayMenu()
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strongSelf.recognizer?.isSelecting = true
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strongSelf.updateIsActive(true)
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}
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recognizer.clearSelection = { [weak self] in
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self?.dismissSelection()
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self?.updateIsActive(false)
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}
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recognizer.canBeginSelection = { [weak self] point in
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guard let self else {
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return false
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}
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return self.canBeginSelection(point)
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}
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self.recognizer = recognizer
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self.view.addGestureRecognizer(recognizer)
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}
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public func updateLayout() {
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if let currentRange = self.currentRange {
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let updatedMin = currentRange.0
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let updatedMax = currentRange.1
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let updatedRange = NSRange(location: min(updatedMin, updatedMax), length: max(updatedMin, updatedMax) - min(updatedMin, updatedMax))
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self.updateSelection(range: updatedRange, animateIn: false)
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}
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}
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public func pretendInitiateSelection() {
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guard let attributedString = self.textNode.currentText else {
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return
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}
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var resultRange: NSRange?
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let stringIndex = 0
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let string = attributedString.string as NSString
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let inputRange = CFRangeMake(0, string.length)
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let flag = UInt(kCFStringTokenizerUnitWord)
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let locale = CFLocaleCopyCurrent()
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let tokenizer = CFStringTokenizerCreate(kCFAllocatorDefault, string as CFString, inputRange, flag, locale)
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var tokenType = CFStringTokenizerAdvanceToNextToken(tokenizer)
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while !tokenType.isEmpty {
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let currentTokenRange = CFStringTokenizerGetCurrentTokenRange(tokenizer)
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if currentTokenRange.location <= stringIndex && currentTokenRange.location + currentTokenRange.length > stringIndex {
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resultRange = NSRange(location: currentTokenRange.location, length: currentTokenRange.length)
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break
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}
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tokenType = CFStringTokenizerAdvanceToNextToken(tokenizer)
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}
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if resultRange == nil {
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resultRange = NSRange(location: stringIndex, length: 1)
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}
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self.currentRange = resultRange.flatMap {
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($0.lowerBound, $0.upperBound)
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}
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self.updateSelection(range: resultRange, animateIn: true)
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self.updateIsActive(true)
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}
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public func pretendExtendSelection(to index: Int) {
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guard let endRangeRect = self.textNode.textRangeRects(in: NSRange(location: index, length: 1))?.rects.first else {
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return
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}
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let startPoint = self.rightKnob.frame.center
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let endPoint = endRangeRect.center
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let displayLinkAnimator = DisplayLinkAnimator(duration: 0.3, from: 0.0, to: 1.0, update: { [weak self] progress in
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guard let strongSelf = self else {
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return
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}
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let point = CGPoint(x: (1.0 - progress) * startPoint.x + progress * endPoint.x, y: (1.0 - progress) * startPoint.y + progress * endPoint.y)
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strongSelf.recognizer?.moveKnob?(.right, point)
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}, completion: {
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})
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self.displayLinkAnimator = displayLinkAnimator
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}
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public func setSelection(range: NSRange, displayMenu: Bool) {
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guard let attributedString = self.textNode.currentText else {
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return
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}
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let range = self.convertSelectionFromOriginalText(attributedString: attributedString, range: range)
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self.currentRange = (range.lowerBound, range.upperBound)
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self.updateSelection(range: range, animateIn: true)
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self.updateIsActive(true)
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if displayMenu {
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self.displayMenu()
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}
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}
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private func convertSelectionToOriginalText(attributedString: NSAttributedString, range: NSRange) -> NSRange {
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var adjustedRange = range
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do {
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attributedString.enumerateAttribute(originalTextAttributeKey, in: NSRange(location: 0, length: range.lowerBound), options: [], using: { value, range, stop in
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guard let value = value as? OriginalTextAttribute else {
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return
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}
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let updatedSubstring = NSMutableAttributedString(string: value.string)
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let difference = updatedSubstring.length - range.length
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adjustedRange.location += difference
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})
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}
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do {
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attributedString.enumerateAttribute(originalTextAttributeKey, in: range, options: [], using: { value, range, stop in
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guard let value = value as? OriginalTextAttribute else {
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return
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}
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let updatedSubstring = NSMutableAttributedString(string: value.string)
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let difference = updatedSubstring.length - range.length
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adjustedRange.length += difference
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})
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}
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return adjustedRange
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}
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private func convertSelectionFromOriginalText(attributedString: NSAttributedString, range: NSRange) -> NSRange {
|
|
var adjustedRange = range
|
|
|
|
final class PreviousText: NSObject {
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let id: Int
|
|
let string: String
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|
|
|
init(id: Int, string: String) {
|
|
self.id = id
|
|
self.string = string
|
|
}
|
|
}
|
|
|
|
var nextId = 0
|
|
let attributedString = NSMutableAttributedString(attributedString: attributedString)
|
|
var fullRange = NSRange(location: 0, length: attributedString.length)
|
|
while true {
|
|
var found = false
|
|
attributedString.enumerateAttribute(originalTextAttributeKey, in: fullRange, options: [], using: { value, range, stop in
|
|
if let value = value as? OriginalTextAttribute {
|
|
let updatedSubstring = NSMutableAttributedString(string: value.string)
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|
|
|
let replacementRange = NSRange(location: 0, length: updatedSubstring.length)
|
|
updatedSubstring.addAttributes(attributedString.attributes(at: range.location, effectiveRange: nil), range: replacementRange)
|
|
updatedSubstring.addAttribute(NSAttributedString.Key(rawValue: "__previous_text"), value: PreviousText(id: nextId, string: attributedString.attributedSubstring(from: range).string), range: replacementRange)
|
|
nextId += 1
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|
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attributedString.replaceCharacters(in: range, with: updatedSubstring)
|
|
let updatedRange = NSRange(location: range.location, length: updatedSubstring.length)
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|
|
|
found = true
|
|
stop.pointee = ObjCBool(true)
|
|
fullRange = NSRange(location: updatedRange.upperBound, length: fullRange.upperBound - range.upperBound)
|
|
}
|
|
})
|
|
if !found {
|
|
break
|
|
}
|
|
}
|
|
|
|
do {
|
|
attributedString.enumerateAttribute(NSAttributedString.Key(rawValue: "__previous_text"), in: NSRange(location: 0, length: range.lowerBound), options: [], using: { value, range, stop in
|
|
guard let value = value as? PreviousText else {
|
|
return
|
|
}
|
|
let updatedSubstring = NSMutableAttributedString(string: value.string)
|
|
let difference = updatedSubstring.length - range.length
|
|
|
|
adjustedRange.location += difference
|
|
})
|
|
}
|
|
|
|
do {
|
|
attributedString.enumerateAttribute(NSAttributedString.Key(rawValue: "__previous_text"), in: range, options: [], using: { value, range, stop in
|
|
guard let value = value as? PreviousText else {
|
|
return
|
|
}
|
|
let updatedSubstring = NSMutableAttributedString(string: value.string)
|
|
let difference = updatedSubstring.length - range.length
|
|
|
|
adjustedRange.length += difference
|
|
})
|
|
}
|
|
|
|
return adjustedRange
|
|
}
|
|
|
|
public func getSelection() -> NSRange? {
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|
guard let currentRange = self.currentRange, let attributedString = self.textNode.currentText else {
|
|
return nil
|
|
}
|
|
let range = NSRange(location: min(currentRange.0, currentRange.1), length: max(currentRange.0, currentRange.1) - min(currentRange.0, currentRange.1))
|
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return self.convertSelectionToOriginalText(attributedString: attributedString, range: range)
|
|
}
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|
|
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private func updateSelection(range: NSRange?, animateIn: Bool) {
|
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self.updateRange?(range)
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|
|
|
var rects: (rects: [CGRect], start: TextRangeRectEdge, end: TextRangeRectEdge)?
|
|
|
|
if let range {
|
|
if var rectsValue = self.textNode.textRangeRects(in: range) {
|
|
var rectList = rectsValue.rects
|
|
if rectList.count > 1 {
|
|
for i in 0 ..< rectList.count - 1 {
|
|
let deltaY = rectList[i + 1].minY - rectList[i].maxY
|
|
if deltaY > 0.0 && deltaY <= 4.0 {
|
|
rectList[i].size.height += deltaY * 0.5
|
|
rectList[i + 1].size.height += deltaY * 0.5
|
|
rectList[i + 1].origin.y -= deltaY * 0.5
|
|
}
|
|
}
|
|
}
|
|
rectsValue.rects = rectList
|
|
rects = rectsValue
|
|
} else {
|
|
rects = nil
|
|
}
|
|
}
|
|
|
|
self.currentRects = rects?.rects
|
|
|
|
if let (rects, startEdge, endEdge) = rects, !rects.isEmpty {
|
|
let highlightOverlay: LinkHighlightingNode
|
|
if let current = self.highlightOverlay {
|
|
highlightOverlay = current
|
|
} else {
|
|
highlightOverlay = LinkHighlightingNode(color: self.theme.selection)
|
|
highlightOverlay.isUserInteractionEnabled = false
|
|
highlightOverlay.innerRadius = 2.0
|
|
highlightOverlay.outerRadius = 2.0
|
|
highlightOverlay.inset = 1.0
|
|
highlightOverlay.useModernPathCalculation = false
|
|
|
|
self.highlightOverlay = highlightOverlay
|
|
self.highlightAreaNode.addSubnode(highlightOverlay)
|
|
}
|
|
highlightOverlay.frame = self.bounds
|
|
highlightOverlay.updateRects(rects)
|
|
if let image = self.leftKnob.image {
|
|
self.leftKnob.frame = CGRect(origin: CGPoint(x: floor(startEdge.x - image.size.width / 2.0), y: startEdge.y - self.theme.knobDiameter), size: CGSize(width: image.size.width, height: self.theme.knobDiameter + startEdge.height))
|
|
self.rightKnob.frame = CGRect(origin: CGPoint(x: floor(endEdge.x - image.size.width / 2.0), y: endEdge.y), size: CGSize(width: image.size.width, height: self.theme.knobDiameter + endEdge.height))
|
|
}
|
|
if self.leftKnob.alpha.isZero {
|
|
highlightOverlay.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.3, timingFunction: CAMediaTimingFunctionName.easeOut.rawValue)
|
|
self.leftKnob.alpha = 1.0
|
|
self.leftKnob.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.14, delay: 0.19)
|
|
self.rightKnob.alpha = 1.0
|
|
self.rightKnob.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.14, delay: 0.19)
|
|
self.leftKnob.layer.animateSpring(from: 0.5 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: 0.2, delay: 0.25, initialVelocity: 0.0, damping: 80.0)
|
|
self.rightKnob.layer.animateSpring(from: 0.5 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: 0.2, delay: 0.25, initialVelocity: 0.0, damping: 80.0)
|
|
|
|
if animateIn {
|
|
var result = CGRect()
|
|
for rect in rects {
|
|
if result.isEmpty {
|
|
result = rect
|
|
} else {
|
|
result = result.union(rect)
|
|
}
|
|
}
|
|
highlightOverlay.layer.animateScale(from: 2.0, to: 1.0, duration: 0.26)
|
|
let fromResult = CGRect(origin: CGPoint(x: result.minX - result.width / 2.0, y: result.minY - result.height / 2.0), size: CGSize(width: result.width * 2.0, height: result.height * 2.0))
|
|
highlightOverlay.layer.animatePosition(from: CGPoint(x: (-fromResult.midX + highlightOverlay.bounds.midX) / 1.0, y: (-fromResult.midY + highlightOverlay.bounds.midY) / 1.0), to: CGPoint(), duration: 0.26, additive: true)
|
|
}
|
|
}
|
|
} else if let highlightOverlay = self.highlightOverlay {
|
|
self.highlightOverlay = nil
|
|
highlightOverlay.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.18, removeOnCompletion: false, completion: { [weak highlightOverlay] _ in
|
|
highlightOverlay?.removeFromSupernode()
|
|
})
|
|
self.leftKnob.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.18)
|
|
self.leftKnob.alpha = 0.0
|
|
self.leftKnob.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.18)
|
|
self.rightKnob.alpha = 0.0
|
|
self.rightKnob.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.18)
|
|
}
|
|
}
|
|
|
|
private func knobAtPoint(_ point: CGPoint) -> (Knob, CGPoint)? {
|
|
if !self.leftKnob.alpha.isZero, self.leftKnob.frame.insetBy(dx: -4.0, dy: -8.0).contains(point) {
|
|
return (.left, self.leftKnob.frame.offsetBy(dx: 0.0, dy: self.leftKnob.frame.width / 2.0).center)
|
|
}
|
|
if !self.rightKnob.alpha.isZero, self.rightKnob.frame.insetBy(dx: -4.0, dy: -8.0).contains(point) {
|
|
return (.right, self.rightKnob.frame.offsetBy(dx: 0.0, dy: -self.rightKnob.frame.width / 2.0).center)
|
|
}
|
|
if !self.leftKnob.alpha.isZero, self.leftKnob.frame.insetBy(dx: -14.0, dy: -14.0).contains(point) {
|
|
return (.left, self.leftKnob.frame.offsetBy(dx: 0.0, dy: self.leftKnob.frame.width / 2.0).center)
|
|
}
|
|
if !self.rightKnob.alpha.isZero, self.rightKnob.frame.insetBy(dx: -14.0, dy: -14.0).contains(point) {
|
|
return (.right, self.rightKnob.frame.offsetBy(dx: 0.0, dy: -self.rightKnob.frame.width / 2.0).center)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
private func dismissSelection() {
|
|
self.currentRange = nil
|
|
self.recognizer?.isSelecting = false
|
|
self.updateSelection(range: nil, animateIn: false)
|
|
|
|
self.contextMenu?.dismiss()
|
|
self.contextMenu = nil
|
|
}
|
|
|
|
public func cancelSelection() {
|
|
self.dismissSelection()
|
|
self.updateIsActive(false)
|
|
}
|
|
|
|
private func displayMenu() {
|
|
guard let currentRects = self.currentRects, !currentRects.isEmpty, let currentRange = self.currentRange, let attributedString = self.textNode.currentText else {
|
|
return
|
|
}
|
|
let range = NSRange(location: min(currentRange.0, currentRange.1), length: max(currentRange.0, currentRange.1) - min(currentRange.0, currentRange.1))
|
|
var completeRect = currentRects[0]
|
|
for i in 0 ..< currentRects.count {
|
|
completeRect = completeRect.union(currentRects[i])
|
|
}
|
|
completeRect = completeRect.insetBy(dx: 0.0, dy: -12.0)
|
|
|
|
let string = NSMutableAttributedString(attributedString: attributedString.attributedSubstring(from: range))
|
|
|
|
var fullRange = NSRange(location: 0, length: string.length)
|
|
while true {
|
|
var found = false
|
|
string.enumerateAttribute(originalTextAttributeKey, in: fullRange, options: [], using: { value, range, stop in
|
|
if let value = value as? OriginalTextAttribute {
|
|
let updatedSubstring = NSMutableAttributedString(string: value.string)
|
|
|
|
let replacementRange = NSRange(location: 0, length: updatedSubstring.length)
|
|
updatedSubstring.addAttributes(string.attributes(at: range.location, effectiveRange: nil), range: replacementRange)
|
|
|
|
string.replaceCharacters(in: range, with: updatedSubstring)
|
|
let updatedRange = NSRange(location: range.location, length: updatedSubstring.length)
|
|
|
|
found = true
|
|
stop.pointee = ObjCBool(true)
|
|
fullRange = NSRange(location: updatedRange.upperBound, length: fullRange.upperBound - range.upperBound)
|
|
}
|
|
})
|
|
if !found {
|
|
break
|
|
}
|
|
}
|
|
|
|
let adjustedRange = self.convertSelectionToOriginalText(attributedString: attributedString, range: range)
|
|
|
|
var actions: [ContextMenuAction] = []
|
|
if self.enableCopy {
|
|
actions.append(ContextMenuAction(content: .text(title: self.strings.Conversation_ContextMenuCopy, accessibilityLabel: self.strings.Conversation_ContextMenuCopy), action: { [weak self] in
|
|
self?.performAction(string, .copy)
|
|
self?.cancelSelection()
|
|
}))
|
|
}
|
|
if self.enableQuote {
|
|
actions.append(ContextMenuAction(content: .text(title: self.strings.Conversation_ContextMenuQuote, accessibilityLabel: self.strings.Conversation_ContextMenuQuote), action: { [weak self] in
|
|
self?.performAction(string, .quote(range: adjustedRange.lowerBound ..< adjustedRange.upperBound))
|
|
self?.cancelSelection()
|
|
}))
|
|
}
|
|
if self.enableLookup {
|
|
actions.append(ContextMenuAction(content: .text(title: self.strings.Conversation_ContextMenuLookUp, accessibilityLabel: self.strings.Conversation_ContextMenuLookUp), action: { [weak self] in
|
|
self?.performAction(string, .lookup)
|
|
self?.cancelSelection()
|
|
}))
|
|
}
|
|
if #available(iOS 15.0, *) {
|
|
if self.enableTranslate {
|
|
actions.append(ContextMenuAction(content: .text(title: self.strings.Conversation_ContextMenuTranslate, accessibilityLabel: self.strings.Conversation_ContextMenuTranslate), action: { [weak self] in
|
|
self?.performAction(string, .translate)
|
|
self?.cancelSelection()
|
|
}))
|
|
}
|
|
}
|
|
|
|
let realFullRange = NSRange(location: 0, length: attributedString.length)
|
|
if range != realFullRange {
|
|
actions.append(ContextMenuAction(content: .text(title: self.strings.TextSelection_SelectAll, accessibilityLabel: self.strings.TextSelection_SelectAll), action: { [weak self] in
|
|
guard let self else {
|
|
return
|
|
}
|
|
self.contextMenu?.dismiss()
|
|
self.setSelection(range: realFullRange, displayMenu: true)
|
|
}))
|
|
} else if self.enableShare {
|
|
actions.append(ContextMenuAction(content: .text(title: self.strings.Conversation_ContextMenuShare, accessibilityLabel: self.strings.Conversation_ContextMenuShare), action: { [weak self] in
|
|
self?.performAction(string, .share)
|
|
self?.cancelSelection()
|
|
}))
|
|
}
|
|
|
|
self.contextMenu?.dismiss()
|
|
|
|
let contextMenu = makeContextMenuController(actions: actions, catchTapsOutside: false, hasHapticFeedback: false, isDark: self.theme.isDark, skipCoordnateConversion: self.menuSkipCoordnateConversion)
|
|
contextMenu.dismissOnTap = { [weak self] view, point in
|
|
guard let self else {
|
|
return true
|
|
}
|
|
if self.knobAtPoint(view.convert(point, to: self.view)) == nil {
|
|
//self.cancelSelection()
|
|
return true
|
|
}
|
|
return true
|
|
}
|
|
self.contextMenu = contextMenu
|
|
self.present(contextMenu, ContextMenuControllerPresentationArguments(sourceNodeAndRect: { [weak self] in
|
|
guard let strongSelf = self, let rootNode = strongSelf.rootNode() else {
|
|
return nil
|
|
}
|
|
|
|
if strongSelf.menuSkipCoordnateConversion {
|
|
return (strongSelf, strongSelf.view.convert(completeRect, to: rootNode.view), rootNode, rootNode.bounds)
|
|
} else {
|
|
return (strongSelf, completeRect, rootNode, rootNode.bounds)
|
|
}
|
|
}, bounce: false))
|
|
}
|
|
|
|
override public func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
|
|
if self.knobAtPoint(point) != nil {
|
|
return self.view
|
|
}
|
|
if self.bounds.contains(point) {
|
|
return self.view
|
|
}
|
|
return nil
|
|
}
|
|
}
|