git.r.bdr.sh - rbdr/map/blob - Map/Views/SlowMapRender.swift

   1 import Cocoa
   2 import SwiftUI
   3
   4 class SlowMapRenderController: NSViewController {
   5
   6   var content: String
   7   private var contentBinding: Binding<String> {
   8     Binding(
   9       get: { self.content },
  10       set: { content in
  11         self.content = content
  12       }
  13     )
  14   }
  15
  16   var evolution: Stage
  17   private var evolutionBinding: Binding<Stage> {
  18     Binding(
  19       get: { self.evolution },
  20       set: { evolution in
  21         self.evolution = evolution
  22       }
  23     )
  24   }
  25   private var colorSchemeEnvironment: ObservableColorSchemeEnvironment
  26
  27   private let debouncer: Debouncer = Debouncer(seconds: 0.1)
  28
  29   init(content: String, evolution: Stage, colorScheme: ColorScheme) {
  30
  31     self.content = content
  32     self.evolution = evolution
  33     self.colorSchemeEnvironment = ObservableColorSchemeEnvironment(colorScheme: colorScheme)
  34     super.init(nibName: nil, bundle: nil)
  35   }
  36
  37   required init?(coder: NSCoder) {
  38     fatalError("init(coder:) has not been implemented")
  39   }
  40
  41   override func loadView() {
  42
  43     let renderView = MapRenderView(content: self.contentBinding, evolution: self.evolutionBinding)
  44       .environmentObject(self.colorSchemeEnvironment)
  45     let hostingView = NSHostingView(rootView: renderView)
  46
  47     self.view = hostingView
  48   }
  49
  50   func update(content: String, evolution: Stage, colorScheme: ColorScheme) {
  51     self.debouncer.debounce {
  52       DispatchQueue.main.async {
  53         print("Updating: START")
  54         self.content = content
  55         self.evolution = evolution
  56         self.colorSchemeEnvironment.colorScheme = colorScheme
  57         print("Updating: END")
  58       }
  59     }
  60   }
  61
  62   private class ObservableColorSchemeEnvironment: ObservableObject {
  63     @Published var colorScheme: ColorScheme
  64
  65     init(colorScheme: ColorScheme) {
  66       self.colorScheme = colorScheme
  67     }
  68   }
  69 }
  70
  71 struct SlowMapRender: NSViewControllerRepresentable {
  72
  73   var content: String
  74   var evolution: Stage
  75   let colorScheme: ColorScheme
  76
  77   func makeNSViewController(
  78     context: NSViewControllerRepresentableContext<SlowMapRender>
  79   ) -> SlowMapRenderController {
  80     return SlowMapRenderController(content: content, evolution: evolution, colorScheme: colorScheme)
  81   }
  82
  83   func updateNSViewController(
  84     _ nsViewController: SlowMapRenderController,
  85     context: NSViewControllerRepresentableContext<SlowMapRender>
  86   ) {
  87     nsViewController.update(
  88       content: content, evolution: evolution, colorScheme: context.environment.colorScheme)
  89   }
  90 }