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| // Copyright © 2024 Povio Inc. All rights reserved. | ||
| // | ||
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| import SwiftUI | ||
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| @available(iOS 15.0, *) | ||
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Sources/UI/SwiftUI/Views/SimpleColorPicker/SimpleColorPicker.swift
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| // | ||
| // SimpleColorPicker.swift | ||
| // PovioKit | ||
| // | ||
| // Created by Borut Tomazin on 15/08/2024. | ||
| // Copyright © 2024 Povio Inc. All rights reserved. | ||
| // | ||
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| #if os(macOS) | ||
| import SwiftUI | ||
| import Combine | ||
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| /// SwiftUI wrapper for NSColorWell, allowing the selection of colors with a customizable size. | ||
| public struct SimpleColorPicker: NSViewRepresentable { | ||
| @Binding var selection: Color | ||
| var size: CGSize? | ||
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| public init(selection: Binding<Color>, size: CGSize? = nil) { | ||
| self._selection = selection | ||
| self.size = size | ||
| } | ||
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| public func makeNSView(context: Context) -> NSColorWell { | ||
| let colorWell: NSColorWell | ||
| if #available(macOS 13.0, *) { | ||
| colorWell = NSColorWell(style: .minimal) | ||
| } else { | ||
| colorWell = NSColorWell() | ||
| } | ||
| colorWell.color = NSColor(selection) | ||
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| context.coordinator.startObservingColorChange(of: colorWell) | ||
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| // override the size | ||
| if let size { | ||
| colorWell.translatesAutoresizingMaskIntoConstraints = false | ||
| NSLayoutConstraint.activate([ | ||
| colorWell.widthAnchor.constraint(equalToConstant: size.width), | ||
| colorWell.heightAnchor.constraint(equalToConstant: size.height) | ||
| ]) | ||
| } | ||
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| return colorWell | ||
| } | ||
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| public func updateNSView(_ nsView: NSColorWell, context: Context) { | ||
| context.coordinator.colorDidChange = { | ||
| selection = Color(nsColor: $0) | ||
| } | ||
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| // update the size | ||
| if let size { | ||
| if let widthConstraint = nsView.constraints.first(where: { $0.firstAttribute == .width }) { | ||
| widthConstraint.constant = size.width | ||
| } | ||
| if let heightConstraint = nsView.constraints.first(where: { $0.firstAttribute == .height }) { | ||
| heightConstraint.constant = size.height | ||
| } | ||
| } | ||
| } | ||
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| public func makeCoordinator() -> Coordinator { | ||
| Coordinator() | ||
| } | ||
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| @MainActor | ||
| public class Coordinator: NSObject { | ||
| var colorDidChange: ((NSColor) -> Void)? | ||
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| private var cancellable: AnyCancellable? | ||
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| func startObservingColorChange(of colorWell: NSColorWell) { | ||
| cancellable = colorWell.publisher(for: \.color).sink { [weak self] in | ||
| self?.colorDidChange?($0) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| #endif |