A modifier that adds image selection capabilities to a view

ImageSelectorOptionsModifier.swift

import Foundation
import SwiftUI

struct ImageSelectorOptionsModifier: ViewModifier {
    var title: String
    var titleVisibility: Visibility
    var galleryOptionTitle: String
    var takePictureOptionTitle: String
    @Binding var isPresentingSourceSelector: Bool
    @Binding var selectedImage: UIImage?

    @State private var isPresentingImagePickerOptions: Bool = false
    @State private var sourceSelection: UIImagePickerController.SourceType?

    func body(content: Content) -> some View {
        content
            .confirmationDialog(
                title,
                isPresented: $isPresentingSourceSelector,
                titleVisibility: titleVisibility
            ) {
                Button(galleryOptionTitle) {
                    sourceSelection = .photoLibrary
                    isPresentingImagePickerOptions = true
                }
                Button(takePictureOptionTitle) {
                    sourceSelection = .camera
                    isPresentingImagePickerOptions = true
                }
                #if targetEnvironment(simulator)
                .disabled(true)
                #endif
            }
            .sheet(isPresented: $isPresentingImagePickerOptions) {
                if let source = sourceSelection {
                    ImagePicker(sourceType: source, selectedImage: $selectedImage)
                }
            }
    }
}

extension View {
    /// A modifier that adds image selection capabilities to a view.
    /// Applying this modifier will let the view present a confirmation dialog with the given properties
    /// to change an image, letting the users select an image from their gallery or with their camera.
    /// - Parameters:
    ///   - title: The title of the confirmation dialog.
    ///   - titleVisibility: The visibility of the title.
    ///   - galleryOptionTitle: The text to display for the Gallery Source Option.
    ///   - takePictureOptionTitle: The text to display for the Camera Source Option.
    ///   - isPresentingSourceSelector: The binding to present the dialog.
    ///   - selectedImage: A binding to represent the image selected by the user.
    /// - Usage:
    /// To use this modifier, you need two @State properties in the View:
    /// ```swift
    /// @State private var isPresentingImagePickerOptions = false
    /// @State private var selectedImage: UIImage?
    /// ```
    /// - Then: Just add the modifier using those properties:
    /// ```swift
    /// Button("Present Picker") {
    ///     isPresentingImagePickerOptions = true
    /// }
    /// .imageSelectorOptions(
    ///     title: "Select Source",
    ///     titleVisibility: .visible,
    ///     isPresentingSourceSelector: $isPresentingImagePickerOptions,
    ///     selectedImage: $selectedImage
    /// )
    /// ```
    /// - Returns: The original view with the applied modifier.
    func imageSelectorOptions(
        title: String = "",
        titleVisibility: Visibility = .automatic,
        galleryOptionTitle: String = "Choose from gallery",
        takePictureOptionTitle: String = "Take Picture",
        isPresentingSourceSelector: Binding<Bool>,
        selectedImage: Binding<UIImage?>
    ) -> some View {
        self.modifier(
            ImageSelectorOptionsModifier(
                title: title,
                titleVisibility: titleVisibility,
                galleryOptionTitle: galleryOptionTitle,
                takePictureOptionTitle: takePictureOptionTitle,
                isPresentingSourceSelector: isPresentingSourceSelector,
                selectedImage: selectedImage
            )
        )
    }
}