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mastodon-app-ufficiale-ipho.../ShareActionExtension/Scene/View/StatusAttachmentView.swift

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4.1 KiB
Swift
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2021-07-19 11:12:45 +02:00
//
// StatusAttachmentView.swift
//
//
// Created by MainasuK Cirno on 2021-7-19.
//
import SwiftUI
import Introspect
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struct StatusAttachmentView: View {
let image: UIImage?
let descriptionPlaceholder: String
@Binding var description: String
let errorPrompt: String?
let errorPromptImage: UIImage
let isUploading: Bool
let progressViewTintColor: UIColor
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let removeButtonAction: () -> Void
var body: some View {
let image = image ?? UIImage.placeholder(color: .systemFill)
ZStack(alignment: .bottom) {
if let errorPrompt = errorPrompt {
Color.clear
.aspectRatio(CGSize(width: 16, height: 9), contentMode: .fill)
.overlay(
VStack(alignment: .center) {
Image(uiImage: errorPromptImage)
Text(errorPrompt)
.lineLimit(2)
}
)
.background(Color.gray)
} else {
Color.clear
.aspectRatio(CGSize(width: 16, height: 9), contentMode: .fill)
.overlay(
Image(uiImage: image)
.resizable()
.aspectRatio(contentMode: .fill)
)
.background(Color.gray)
LinearGradient(gradient: Gradient(colors: [Color(white: 0, opacity: 0.69), Color.clear]), startPoint: .bottom, endPoint: .top)
.frame(maxHeight: 71)
TextField("", text: $description)
.placeholder(when: description.isEmpty) {
Text(descriptionPlaceholder).foregroundColor(Color(white: 1, opacity: 0.6))
.lineLimit(1)
}
.foregroundColor(.white)
.font(.system(size: 15, weight: .regular, design: .default))
.padding(EdgeInsets(top: 0, leading: 8, bottom: 7, trailing: 8))
}
}
.cornerRadius(4)
.badgeView(
Button(action: {
removeButtonAction()
}, label: {
Image(systemName: "minus.circle.fill")
.renderingMode(.original)
.font(.system(size: 22, weight: .bold, design: .default))
})
.buttonStyle(BorderlessButtonStyle())
)
.overlay(
Group {
if isUploading {
ProgressView()
.progressViewStyle(CircularProgressViewStyle(tint: Color(progressViewTintColor)))
}
}
)
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}
}
extension View {
func badgeView<Content>(_ content: Content) -> some View where Content: View {
overlay(
ZStack {
content
}
.alignmentGuide(.top) { $0.height / 2 }
.alignmentGuide(.trailing) { $0.width / 2 }
.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topTrailing)
)
}
}
/// ref: https://stackoverflow.com/a/57715771/3797903
extension View {
func placeholder<Content: View>(
when shouldShow: Bool,
alignment: Alignment = .leading,
@ViewBuilder placeholder: () -> Content) -> some View {
ZStack(alignment: alignment) {
placeholder().opacity(shouldShow ? 1 : 0)
self
}
}
}
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//struct StatusAttachmentView_Previews: PreviewProvider {
// static var previews: some View {
// ScrollView {
// StatusAttachmentView(
// image: UIImage(systemName: "photo"),
// descriptionPlaceholder: "Describe photo",
// description: .constant(""),
// errorPrompt: nil,
// errorPromptImage: StatusAttachmentViewModel.photoFillSplitImage,
// isUploading: true,
// progressViewTintColor: .systemFill,
// removeButtonAction: {
// // do nothing
// }
// )
// .padding(20)
// }
// }
//}