Implement new article extractor button for Big Sur

2025-08-12 06:26:36 +00:00 · 2020-08-10 17:34:12 -05:00
parent 4ce974daca
commit cb2eefa56a
27 changed files with 280 additions and 67 deletions
--- a/Mac/MainWindow/ArticleExtractorButton.swift
+++ b/Mac/MainWindow/ArticleExtractorButton.swift
@@ -0,0 +1,108 @@
+//
+//  ArticleExtractorButton.swift
+//  NetNewsWire
+//
+//  Created by Maurice Parker on 8/10/20.
+//  Copyright © 2020 Ranchero Software. All rights reserved.
+//
+
+import AppKit
+
+enum ArticleExtractorButtonState {
+	case error
+	case animated
+	case on
+	case off
+}
+
+class ArticleExtractorButton: NSButton {
+	
+	private var animatedLayer: CALayer?
+	
+	var buttonState: ArticleExtractorButtonState = .off {
+		didSet {
+			if buttonState != oldValue {
+				switch buttonState {
+				case .error:
+					stripAnimatedSublayer()
+					image = AppAssets.articleExtractorError
+				case .animated:
+					image = nil
+					needsLayout = true
+				case .on:
+					stripAnimatedSublayer()
+					image = AppAssets.articleExtractorOn
+				case .off:
+					stripAnimatedSublayer()
+					image = AppAssets.articleExtractorOff
+				}
+			}
+		}
+	}
+	
+	override func accessibilityLabel() -> String? {
+		switch buttonState {
+		case .error:
+			return NSLocalizedString("Error - Reader View", comment: "Error - Reader View")
+		case .animated:
+			return NSLocalizedString("Processing - Reader View", comment: "Processing - Reader View")
+		case .on:
+			return NSLocalizedString("Selected - Reader View", comment: "Selected - Reader View")
+		case .off:
+			return NSLocalizedString("Reader View", comment: "Reader View")
+		}
+	}
+
+	override init(frame frameRect: NSRect) {
+		super.init(frame: frameRect)
+		commonInit()
+	}
+	
+	required init?(coder: NSCoder) {
+		super.init(coder: coder)
+		commonInit()
+	}
+	
+	private func commonInit() {
+		wantsLayer = true
+		bezelStyle = .texturedRounded
+		image = AppAssets.articleExtractorOff
+		imageScaling = .scaleProportionallyDown
+	}
+	
+	override func layout() {
+		super.layout()
+		guard case .animated = buttonState else {
+			return
+		}
+		stripAnimatedSublayer()
+		addAnimatedSublayer(to: layer!)
+	}
+	
+	private func stripAnimatedSublayer() {
+		animatedLayer?.removeFromSuperlayer()
+	}
+	
+	private func addAnimatedSublayer(to hostedLayer: CALayer) {
+		let image1 = AppAssets.articleExtractorOff.tinted(with: NSColor.controlTextColor)
+		let image2 = AppAssets.articleExtractorOn.tinted(with: NSColor.controlTextColor)
+		let images = [image1, image2, image1]
+		
+		animatedLayer = CALayer()
+		let imageSize = AppAssets.articleExtractorOff.size
+		animatedLayer!.bounds = CGRect(x: 0, y: 0, width: imageSize.width, height: imageSize.height)
+		animatedLayer!.position = CGPoint(x: bounds.midX, y: bounds.midY)
+		
+		hostedLayer.addSublayer(animatedLayer!)
+		
+		let animation = CAKeyframeAnimation(keyPath: "contents")
+		animation.calculationMode = CAAnimationCalculationMode.linear
+		animation.keyTimes = [0, 0.5, 1]
+		animation.duration = 2
+		animation.values = images
+		animation.repeatCount = HUGE
+		
+		animatedLayer!.add(animation, forKey: "contents")
+	}
+	
+}