125 lines
5.5 KiB
Swift
125 lines
5.5 KiB
Swift
//
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// Checkbox.swift
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// VDS
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//
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// Created by Matt Bruce on 6/5/23.
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//
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import Foundation
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import UIKit
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import Combine
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import VDSColorTokens
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import VDSFormControlsTokens
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@objc(VDSCheckbox)
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open class Checkbox: SelectorBase {
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open var isAnimated: Bool = false { didSet { setNeedsUpdate() }}
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open override func setup() {
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super.setup()
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backgroundColorConfig.setSurfaceColors(VDSColor.elementsPrimaryOnlight, VDSColor.elementsPrimaryOndark, forState: .selected)
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backgroundColorConfig.setSurfaceColors(VDSColor.elementsPrimaryOnlight, VDSColor.elementsPrimaryOndark, forState: [.selected, .highlighted])
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backgroundColorConfig.setSurfaceColors(VDSColor.interactiveDisabledOnlight, VDSColor.interactiveDisabledOndark, forState: [.selected, .disabled])
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backgroundColorConfig.setSurfaceColors(VDSColor.feedbackErrorBackgroundOnlight, VDSColor.feedbackErrorBackgroundOndark, forState: .error)
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backgroundColorConfig.setSurfaceColors(.clear, .clear, forState: [.error, .disabled])
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borderColorConfig.setSurfaceColors(VDSColor.elementsPrimaryOnlight, VDSColor.elementsPrimaryOndark, forState: .selected)
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borderColorConfig.setSurfaceColors(VDSColor.elementsPrimaryOnlight, VDSColor.elementsPrimaryOndark, forState: .highlighted)
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borderColorConfig.setSurfaceColors(VDSFormControlsColor.borderOnlight, VDSFormControlsColor.borderOndark, forState: .normal)
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borderColorConfig.setSurfaceColors(VDSColor.interactiveDisabledOnlight, VDSColor.interactiveDisabledOndark, forState: .disabled)
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borderColorConfig.setSurfaceColors(VDSColor.feedbackErrorOnlight, VDSColor.feedbackErrorOndark, forState: .error)
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borderColorConfig.setSurfaceColors(VDSColor.interactiveDisabledOnlight, VDSColor.interactiveDisabledOndark, forState: [.selected, .disabled])
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borderColorConfig.setSurfaceColors(VDSColor.interactiveDisabledOnlight, VDSColor.interactiveDisabledOndark, forState: [.error, .disabled])
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selectorColorConfig.setSurfaceColors(VDSColor.elementsPrimaryOndark, VDSColor.elementsPrimaryOnlight, forState: .selected)
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}
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open override func toggle() {
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//removed error
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if showError && isSelected == false {
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showError.toggle()
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}
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isSelected.toggle()
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sendActions(for: .valueChanged)
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}
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open override func layoutSubviews() {
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super.layoutSubviews()
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//get the colors
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let backgroundColor = backgroundColorConfig.getColor(self)
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let borderColor = borderColorConfig.getColor(self)
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let selectorColor = selectorColorConfig.getColor(self)
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if let shapeLayer = shapeLayer, let sublayers = layer.sublayers, sublayers.contains(shapeLayer) {
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shapeLayer.removeFromSuperlayer()
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self.shapeLayer = nil
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}
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layer.cornerRadius = 2.0
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layer.borderWidth = VDSFormControls.widthBorder
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if shapeLayer == nil {
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let bounds = bounds
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let length = max(bounds.size.height, bounds.size.width)
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guard length > 0.0, shapeLayer == nil else { return }
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//draw the checkmark layer
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let xInsetLeft = length * 0.25
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let yInsetTop = length * 0.3
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let innerWidth = length - (xInsetLeft + length * 0.25) // + Right X Inset
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let innerHeight = length - (yInsetTop + length * 0.35) // + Bottom Y Inset
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let startPoint = CGPoint(x: xInsetLeft, y: yInsetTop + (innerHeight / 2))
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let pivotOffSet = CGPoint(x: xInsetLeft + (innerWidth * 0.33), y: yInsetTop + innerHeight)
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let endOffset = CGPoint(x: xInsetLeft + innerWidth, y: yInsetTop)
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let bezierPath = UIBezierPath()
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bezierPath.move(to: startPoint)
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bezierPath.addLine(to: pivotOffSet)
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bezierPath.addLine(to: endOffset)
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let shapeLayer = CAShapeLayer()
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self.shapeLayer = shapeLayer
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shapeLayer.frame = bounds
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layer.addSublayer(shapeLayer)
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shapeLayer.strokeColor = selectorColor.cgColor
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shapeLayer.fillColor = UIColor.clear.cgColor
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shapeLayer.path = bezierPath.cgPath
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shapeLayer.lineJoin = .miter
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shapeLayer.lineWidth = 2
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CATransaction.withDisabledAnimations {
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shapeLayer.strokeEnd = isSelected ? 1 : 0
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}
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}
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shapeLayer?.removeAllAnimations()
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if isAnimated && !disabled && !isHighlighted {
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let animateStrokeEnd = CABasicAnimation(keyPath: "strokeEnd")
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animateStrokeEnd.timingFunction = CAMediaTimingFunction(name: .linear)
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animateStrokeEnd.duration = 0.3
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animateStrokeEnd.fillMode = .both
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animateStrokeEnd.isRemovedOnCompletion = false
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animateStrokeEnd.fromValue = !isSelected ? 1 : 0
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animateStrokeEnd.toValue = isSelected ? 1 : 0
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self.shapeLayer?.add(animateStrokeEnd, forKey: "strokeEnd")
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UIView.animate(withDuration: 0.2, delay: 0.1, options: .curveEaseOut, animations: {
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self.backgroundColor = backgroundColor
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self.layer.borderColor = borderColor.cgColor
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})
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} else {
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CATransaction.withDisabledAnimations {
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self.shapeLayer?.strokeEnd = isSelected ? 1 : 0
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}
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self.backgroundColor = backgroundColor
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layer.borderColor = borderColor.cgColor
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}
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}
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}
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