metatext-app-ios-iphone-ipad/Views/CompositionInputAccessoryVi...

85 lines
2.8 KiB
Swift

// Copyright © 2020 Metabolist. All rights reserved.
import Combine
import UIKit
import ViewModels
class CompositionInputAccessoryView: UIView {
private let stackView = UIStackView()
private let viewModel: CompositionViewModel
private var cancellables = Set<AnyCancellable>()
init(viewModel: CompositionViewModel) {
self.viewModel = viewModel
super.init(frame: .zero)
initialSetup()
}
@available(*, unavailable)
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override var intrinsicContentSize: CGSize {
stackView.systemLayoutSizeFitting(UIView.layoutFittingCompressedSize)
}
}
private extension CompositionInputAccessoryView {
func initialSetup() {
autoresizingMask = .flexibleHeight
backgroundColor = .secondarySystemFill
addSubview(stackView)
stackView.translatesAutoresizingMaskIntoConstraints = false
stackView.spacing = .defaultSpacing
let mediaButton = UIButton()
stackView.addArrangedSubview(mediaButton)
mediaButton.setImage(
UIImage(
systemName: "photo",
withConfiguration: UIImage.SymbolConfiguration(scale: .medium)),
for: .normal)
mediaButton.addAction(UIAction { [weak self] _ in self?.viewModel.presentMediaPicker() }, for: .touchUpInside)
let pollButton = UIButton()
stackView.addArrangedSubview(pollButton)
pollButton.setImage(
UIImage(
systemName: "chart.bar.xaxis",
withConfiguration: UIImage.SymbolConfiguration(scale: .medium)),
for: .normal)
stackView.addArrangedSubview(UIView())
let addButton = UIButton()
stackView.addArrangedSubview(addButton)
addButton.setImage(
UIImage(
systemName: "plus.circle.fill",
withConfiguration: UIImage.SymbolConfiguration(scale: .medium)),
for: .normal)
addButton.addAction(UIAction { [weak self] _ in self?.viewModel.insert() }, for: .touchUpInside)
for button in [mediaButton, pollButton, addButton] {
button.heightAnchor.constraint(greaterThanOrEqualToConstant: .minimumButtonDimension).isActive = true
button.widthAnchor.constraint(greaterThanOrEqualToConstant: .minimumButtonDimension).isActive = true
}
NSLayoutConstraint.activate([
stackView.leadingAnchor.constraint(equalTo: leadingAnchor),
stackView.topAnchor.constraint(equalTo: topAnchor),
stackView.trailingAnchor.constraint(equalTo: trailingAnchor),
stackView.bottomAnchor.constraint(equalTo: bottomAnchor)
])
viewModel.$isPostable.sink { addButton.isEnabled = $0 }.store(in: &cancellables)
}
}