forked from zelo72/mastodon-ios
147 lines
7.1 KiB
Swift
147 lines
7.1 KiB
Swift
//
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// MediaPreviewImageViewController.swift
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// Mastodon
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//
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// Created by MainasuK Cirno on 2021-4-28.
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//
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import os.log
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import UIKit
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import Combine
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protocol MediaPreviewImageViewControllerDelegate: AnyObject {
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func mediaPreviewImageViewController(_ viewController: MediaPreviewImageViewController, tapGestureRecognizerDidTrigger tapGestureRecognizer: UITapGestureRecognizer)
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func mediaPreviewImageViewController(_ viewController: MediaPreviewImageViewController, longPressGestureRecognizerDidTrigger longPressGestureRecognizer: UILongPressGestureRecognizer)
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func mediaPreviewImageViewController(_ viewController: MediaPreviewImageViewController, contextMenuActionPerform action: MediaPreviewImageViewController.ContextMenuAction)
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}
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final class MediaPreviewImageViewController: UIViewController {
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var disposeBag = Set<AnyCancellable>()
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var observations = Set<NSKeyValueObservation>()
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var viewModel: MediaPreviewImageViewModel!
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weak var delegate: MediaPreviewImageViewControllerDelegate?
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// let progressBarView = ProgressBarView()
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let previewImageView = MediaPreviewImageView()
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let tapGestureRecognizer = UITapGestureRecognizer.singleTapGestureRecognizer
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let longPressGestureRecognizer = UILongPressGestureRecognizer()
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deinit {
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os_log("%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
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previewImageView.imageView.af.cancelImageRequest()
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}
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}
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extension MediaPreviewImageViewController {
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override func viewDidLoad() {
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super.viewDidLoad()
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// progressBarView.tintColor = .white
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// progressBarView.translatesAutoresizingMaskIntoConstraints = false
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// view.addSubview(progressBarView)
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// NSLayoutConstraint.activate([
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// progressBarView.centerXAnchor.constraint(equalTo: view.centerXAnchor),
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// progressBarView.centerYAnchor.constraint(equalTo: view.centerYAnchor),
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// progressBarView.widthAnchor.constraint(equalToConstant: 120),
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// progressBarView.heightAnchor.constraint(equalToConstant: 44),
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// ])
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previewImageView.translatesAutoresizingMaskIntoConstraints = false
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view.addSubview(previewImageView)
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NSLayoutConstraint.activate([
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previewImageView.frameLayoutGuide.topAnchor.constraint(equalTo: view.topAnchor),
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previewImageView.frameLayoutGuide.leadingAnchor.constraint(equalTo: view.leadingAnchor),
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previewImageView.frameLayoutGuide.trailingAnchor.constraint(equalTo: view.trailingAnchor),
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previewImageView.frameLayoutGuide.bottomAnchor.constraint(equalTo: view.bottomAnchor),
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])
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tapGestureRecognizer.addTarget(self, action: #selector(MediaPreviewImageViewController.tapGestureRecognizerHandler(_:)))
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longPressGestureRecognizer.addTarget(self, action: #selector(MediaPreviewImageViewController.longPressGestureRecognizerHandler(_:)))
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tapGestureRecognizer.require(toFail: previewImageView.doubleTapGestureRecognizer)
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tapGestureRecognizer.require(toFail: longPressGestureRecognizer)
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previewImageView.addGestureRecognizer(tapGestureRecognizer)
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previewImageView.addGestureRecognizer(longPressGestureRecognizer)
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let previewImageViewContextMenuInteraction = UIContextMenuInteraction(delegate: self)
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previewImageView.addInteraction(previewImageViewContextMenuInteraction)
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viewModel.image
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.receive(on: RunLoop.main) // use RunLoop prevent set image during zooming (TODO: handle transitioning state)
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.sink { [weak self] image in
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guard let self = self else { return }
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guard let image = image else { return }
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self.previewImageView.imageView.image = image
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self.previewImageView.setup(image: image, container: self.previewImageView, forceUpdate: true)
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}
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.store(in: &disposeBag)
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}
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}
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extension MediaPreviewImageViewController {
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@objc private func tapGestureRecognizerHandler(_ sender: UITapGestureRecognizer) {
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
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delegate?.mediaPreviewImageViewController(self, tapGestureRecognizerDidTrigger: sender)
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}
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@objc private func longPressGestureRecognizerHandler(_ sender: UILongPressGestureRecognizer) {
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
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delegate?.mediaPreviewImageViewController(self, longPressGestureRecognizerDidTrigger: sender)
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}
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}
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// MARK: - UIContextMenuInteractionDelegate
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extension MediaPreviewImageViewController: UIContextMenuInteractionDelegate {
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func contextMenuInteraction(_ interaction: UIContextMenuInteraction, configurationForMenuAtLocation location: CGPoint) -> UIContextMenuConfiguration? {
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
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let previewProvider: UIContextMenuContentPreviewProvider = { () -> UIViewController? in
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return nil
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}
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let saveAction = UIAction(
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title: L10n.Common.Controls.Actions.savePhoto, image: UIImage(systemName: "square.and.arrow.down")!, identifier: nil, discoverabilityTitle: nil, attributes: [], state: .off
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) { [weak self] _ in
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: save photo", ((#file as NSString).lastPathComponent), #line, #function)
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guard let self = self else { return }
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self.delegate?.mediaPreviewImageViewController(self, contextMenuActionPerform: .savePhoto)
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}
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let shareAction = UIAction(
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title: L10n.Common.Controls.Actions.share, image: UIImage(systemName: "square.and.arrow.up")!, identifier: nil, discoverabilityTitle: nil, attributes: [], state: .off
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) { [weak self] _ in
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: share", ((#file as NSString).lastPathComponent), #line, #function)
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guard let self = self else { return }
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self.delegate?.mediaPreviewImageViewController(self, contextMenuActionPerform: .share)
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}
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let actionProvider: UIContextMenuActionProvider = { elements -> UIMenu? in
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return UIMenu(title: "", image: nil, identifier: nil, options: [], children: [
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saveAction,
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shareAction
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])
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}
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return UIContextMenuConfiguration(identifier: nil, previewProvider: previewProvider, actionProvider: actionProvider)
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}
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func contextMenuInteraction(_ interaction: UIContextMenuInteraction, previewForHighlightingMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
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// set preview view
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return UITargetedPreview(view: previewImageView.imageView)
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}
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}
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extension MediaPreviewImageViewController {
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enum ContextMenuAction {
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case savePhoto
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case share
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}
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}
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