112 lines
3.1 KiB
Swift
112 lines
3.1 KiB
Swift
//
|
|
// ArticleExtractorButton.swift
|
|
// NetNewsWire
|
|
//
|
|
// Created by Maurice Parker on 9/18/19.
|
|
// Copyright © 2019 Ranchero Software. All rights reserved.
|
|
//
|
|
|
|
import Foundation
|
|
|
|
class ArticleExtractorButton: NSButton {
|
|
|
|
var isError = false {
|
|
didSet {
|
|
if isError != oldValue {
|
|
needsDisplay = true
|
|
}
|
|
}
|
|
}
|
|
|
|
var isInProgress = false {
|
|
didSet {
|
|
if isInProgress != oldValue {
|
|
needsDisplay = true
|
|
}
|
|
}
|
|
}
|
|
|
|
override init(frame frameRect: NSRect) {
|
|
super.init(frame: frameRect)
|
|
wantsLayer = true
|
|
}
|
|
|
|
required init?(coder: NSCoder) {
|
|
super.init(coder: coder)
|
|
wantsLayer = true
|
|
}
|
|
|
|
override func draw(_ dirtyRect: NSRect) {
|
|
super.draw(dirtyRect)
|
|
|
|
guard let hostedLayer = self.layer else {
|
|
return
|
|
}
|
|
|
|
if let imageLayer = hostedLayer.sublayers?[0] {
|
|
if needsToDraw(imageLayer.bounds) {
|
|
imageLayer.removeFromSuperlayer()
|
|
} else {
|
|
return
|
|
}
|
|
}
|
|
|
|
let opacity: Float = isEnabled ? 1.0 : 0.5
|
|
|
|
switch true {
|
|
case isError:
|
|
addImageSublayer(to: hostedLayer, image: AppAssets.articleExtractorError, opacity: opacity)
|
|
case isInProgress:
|
|
addAnimatedSublayer(to: hostedLayer)
|
|
default:
|
|
if NSApplication.shared.isActive {
|
|
addImageSublayer(to: hostedLayer, image: AppAssets.articleExtractor, opacity: opacity)
|
|
} else {
|
|
if NSApplication.shared.effectiveAppearance.isDarkMode {
|
|
addImageSublayer(to: hostedLayer, image: AppAssets.articleExtractorInactiveDark, opacity: opacity)
|
|
} else {
|
|
addImageSublayer(to: hostedLayer, image: AppAssets.articleExtractorInactiveLight, opacity: opacity)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private func makeLayerForImage(_ image: NSImage) -> CALayer {
|
|
let imageLayer = CALayer()
|
|
imageLayer.bounds = CGRect(x: 0, y: 0, width: image.size.width, height: image.size.height)
|
|
imageLayer.position = CGPoint(x: bounds.midX, y: bounds.midY)
|
|
return imageLayer
|
|
}
|
|
|
|
private func addImageSublayer(to hostedLayer: CALayer, image: NSImage, opacity: Float = 1.0) {
|
|
let imageLayer = makeLayerForImage(image)
|
|
imageLayer.contents = image
|
|
imageLayer.opacity = opacity
|
|
hostedLayer.addSublayer(imageLayer)
|
|
}
|
|
|
|
private func addAnimatedSublayer(to hostedLayer: CALayer) {
|
|
let imageProgress1 = AppAssets.articleExtractorProgress1
|
|
let imageProgress2 = AppAssets.articleExtractorProgress2
|
|
let imageProgress3 = AppAssets.articleExtractorProgress3
|
|
let imageProgress4 = AppAssets.articleExtractorProgress4
|
|
let images = [imageProgress1, imageProgress2, imageProgress3, imageProgress4, imageProgress3, imageProgress2, imageProgress1]
|
|
|
|
let imageLayer = CALayer()
|
|
imageLayer.bounds = CGRect(x: 0, y: 0, width: imageProgress1?.size.width ?? 0, height: imageProgress1?.size.height ?? 0)
|
|
imageLayer.position = CGPoint(x: bounds.midX, y: bounds.midY)
|
|
|
|
hostedLayer.addSublayer(imageLayer)
|
|
|
|
let animation = CAKeyframeAnimation(keyPath: "contents")
|
|
animation.calculationMode = CAAnimationCalculationMode.linear
|
|
animation.keyTimes = [0, 0.16, 0.32, 0.50, 0.66, 0.82, 1]
|
|
animation.duration = 2
|
|
animation.values = images as [Any]
|
|
animation.repeatCount = HUGE
|
|
|
|
imageLayer.add(animation, forKey: "contents")
|
|
}
|
|
|
|
}
|