490 lines
22 KiB
Swift
490 lines
22 KiB
Swift
//
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// ComposeContentViewController.swift
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//
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//
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// Created by MainasuK on 22/9/30.
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//
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import os.log
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import UIKit
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import SwiftUI
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import Combine
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import PhotosUI
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import MastodonCore
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public final class ComposeContentViewController: UIViewController {
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let logger = Logger(subsystem: "ComposeContentViewController", category: "ViewController")
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var disposeBag = Set<AnyCancellable>()
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public var viewModel: ComposeContentViewModel!
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private(set) lazy var composeContentToolbarViewModel = ComposeContentToolbarView.ViewModel(delegate: self)
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// tableView container
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let tableView: ComposeTableView = {
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let tableView = ComposeTableView()
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tableView.estimatedRowHeight = UITableView.automaticDimension
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tableView.alwaysBounceVertical = true
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tableView.separatorStyle = .none
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tableView.tableFooterView = UIView()
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return tableView
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}()
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// auto complete
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private(set) lazy var autoCompleteViewController: AutoCompleteViewController = {
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let viewController = AutoCompleteViewController()
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viewController.viewModel = AutoCompleteViewModel(context: viewModel.context, authContext: viewModel.authContext)
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viewController.delegate = self
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// viewController.viewModel.customEmojiViewModel.value = viewModel.customEmojiViewModel
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return viewController
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}()
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// toolbar
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lazy var composeContentToolbarView = ComposeContentToolbarView(viewModel: composeContentToolbarViewModel)
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var composeContentToolbarViewBottomLayoutConstraint: NSLayoutConstraint!
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let composeContentToolbarBackgroundView = UIView()
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// media picker
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static func createPhotoLibraryPickerConfiguration(selectionLimit: Int = 4) -> PHPickerConfiguration {
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var configuration = PHPickerConfiguration()
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configuration.filter = .any(of: [.images, .videos])
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configuration.selectionLimit = selectionLimit
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return configuration
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}
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private(set) lazy var photoLibraryPicker: PHPickerViewController = {
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let imagePicker = PHPickerViewController(configuration: ComposeContentViewController.createPhotoLibraryPickerConfiguration())
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imagePicker.delegate = self
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return imagePicker
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}()
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private(set) lazy var imagePickerController: UIImagePickerController = {
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let imagePickerController = UIImagePickerController()
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imagePickerController.sourceType = .camera
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imagePickerController.delegate = self
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return imagePickerController
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}()
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private(set) lazy var documentPickerController: UIDocumentPickerViewController = {
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let documentPickerController = UIDocumentPickerViewController(forOpeningContentTypes: [.image, .movie])
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documentPickerController.delegate = self
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return documentPickerController
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}()
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deinit {
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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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}
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}
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extension ComposeContentViewController {
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public override func viewDidLoad() {
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super.viewDidLoad()
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// setup view
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self.setupBackgroundColor(theme: ThemeService.shared.currentTheme.value)
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ThemeService.shared.currentTheme
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.receive(on: RunLoop.main)
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.sink { [weak self] theme in
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guard let self = self else { return }
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self.setupBackgroundColor(theme: theme)
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}
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.store(in: &disposeBag)
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// setup tableView
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tableView.translatesAutoresizingMaskIntoConstraints = false
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view.addSubview(tableView)
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NSLayoutConstraint.activate([
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tableView.topAnchor.constraint(equalTo: view.topAnchor),
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tableView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
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tableView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
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tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
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])
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tableView.delegate = self
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viewModel.setupDataSource(tableView: tableView)
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let toolbarHostingView = UIHostingController(rootView: composeContentToolbarView)
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toolbarHostingView.view.translatesAutoresizingMaskIntoConstraints = false
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view.addSubview(toolbarHostingView.view)
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composeContentToolbarViewBottomLayoutConstraint = view.bottomAnchor.constraint(equalTo: toolbarHostingView.view.bottomAnchor)
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NSLayoutConstraint.activate([
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toolbarHostingView.view.leadingAnchor.constraint(equalTo: view.leadingAnchor),
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toolbarHostingView.view.trailingAnchor.constraint(equalTo: view.trailingAnchor),
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composeContentToolbarViewBottomLayoutConstraint,
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toolbarHostingView.view.heightAnchor.constraint(equalToConstant: ComposeContentToolbarView.toolbarHeight),
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])
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toolbarHostingView.view.preservesSuperviewLayoutMargins = true
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//composeToolbarView.delegate = self
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composeContentToolbarBackgroundView.translatesAutoresizingMaskIntoConstraints = false
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view.insertSubview(composeContentToolbarBackgroundView, belowSubview: toolbarHostingView.view)
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NSLayoutConstraint.activate([
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composeContentToolbarBackgroundView.topAnchor.constraint(equalTo: toolbarHostingView.view.topAnchor),
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composeContentToolbarBackgroundView.leadingAnchor.constraint(equalTo: toolbarHostingView.view.leadingAnchor),
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composeContentToolbarBackgroundView.trailingAnchor.constraint(equalTo: toolbarHostingView.view.trailingAnchor),
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view.bottomAnchor.constraint(equalTo: composeContentToolbarBackgroundView.bottomAnchor),
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])
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let keyboardHasShortcutBar = CurrentValueSubject<Bool, Never>(traitCollection.userInterfaceIdiom == .pad) // update default value later
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let keyboardEventPublishers = Publishers.CombineLatest3(
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KeyboardResponderService.shared.isShow,
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KeyboardResponderService.shared.state,
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KeyboardResponderService.shared.endFrame
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)
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// Publishers.CombineLatest3(
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// viewModel.$isCustomEmojiComposing,
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// )
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keyboardEventPublishers
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.sink(receiveValue: { [weak self] keyboardEvents in
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guard let self = self else { return }
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let (isShow, state, endFrame) = keyboardEvents
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// switch self.traitCollection.userInterfaceIdiom {
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// case .pad:
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// keyboardHasShortcutBar.value = state != .floating
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// default:
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// keyboardHasShortcutBar.value = false
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// }
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//
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let extraMargin: CGFloat = {
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var margin = ComposeContentToolbarView.toolbarHeight
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// if autoCompleteInfo != nil {
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//// margin += ComposeViewController.minAutoCompleteVisibleHeight
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// }
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return margin
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}()
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//
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guard isShow, state == .dock else {
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self.tableView.contentInset.bottom = extraMargin
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self.tableView.verticalScrollIndicatorInsets.bottom = extraMargin
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// if let superView = self.autoCompleteViewController.tableView.superview {
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// let autoCompleteTableViewBottomInset: CGFloat = {
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// let tableViewFrameInWindow = superView.convert(self.autoCompleteViewController.tableView.frame, to: nil)
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// let padding = tableViewFrameInWindow.maxY + self.composeToolbarView.frame.height + AutoCompleteViewController.chevronViewHeight - self.view.frame.maxY
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// return max(0, padding)
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// }()
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// self.autoCompleteViewController.tableView.contentInset.bottom = autoCompleteTableViewBottomInset
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// self.autoCompleteViewController.tableView.verticalScrollIndicatorInsets.bottom = autoCompleteTableViewBottomInset
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// }
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UIView.animate(withDuration: 0.3) {
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self.composeContentToolbarViewBottomLayoutConstraint.constant = self.view.safeAreaInsets.bottom
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if self.view.window != nil {
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self.view.layoutIfNeeded()
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}
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}
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return
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}
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// isShow AND dock state
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// self.systemKeyboardHeight = endFrame.height
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// adjust inset for auto-complete
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// let autoCompleteTableViewBottomInset: CGFloat = {
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// guard let superview = self.autoCompleteViewController.tableView.superview else { return .zero }
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// let tableViewFrameInWindow = superview.convert(self.autoCompleteViewController.tableView.frame, to: nil)
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// let padding = tableViewFrameInWindow.maxY + self.composeToolbarView.frame.height + AutoCompleteViewController.chevronViewHeight - endFrame.minY
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// return max(0, padding)
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// }()
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// self.autoCompleteViewController.tableView.contentInset.bottom = autoCompleteTableViewBottomInset
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// self.autoCompleteViewController.tableView.verticalScrollIndicatorInsets.bottom = autoCompleteTableViewBottomInset
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// adjust inset for tableView
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let contentFrame = self.view.convert(self.tableView.frame, to: nil)
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let padding = contentFrame.maxY + extraMargin - endFrame.minY
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guard padding > 0 else {
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self.tableView.contentInset.bottom = self.view.safeAreaInsets.bottom + extraMargin
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self.tableView.verticalScrollIndicatorInsets.bottom = self.view.safeAreaInsets.bottom + extraMargin
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return
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}
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self.tableView.contentInset.bottom = padding - self.view.safeAreaInsets.bottom
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self.tableView.verticalScrollIndicatorInsets.bottom = padding - self.view.safeAreaInsets.bottom
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UIView.animate(withDuration: 0.3) {
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self.composeContentToolbarViewBottomLayoutConstraint.constant = endFrame.height
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self.view.layoutIfNeeded()
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}
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})
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.store(in: &disposeBag)
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// setup snap behavior
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Publishers.CombineLatest(
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viewModel.$replyToCellFrame,
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viewModel.$scrollViewState
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)
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.receive(on: DispatchQueue.main)
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.sink { [weak self] replyToCellFrame, scrollViewState in
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guard let self = self else { return }
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guard replyToCellFrame != .zero else { return }
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switch scrollViewState {
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case .fold:
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self.tableView.contentInset.top = -replyToCellFrame.height
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: set contentInset.top: -%s", ((#file as NSString).lastPathComponent), #line, #function, replyToCellFrame.height.description)
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case .expand:
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self.tableView.contentInset.top = 0
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}
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}
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.store(in: &disposeBag)
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// bind auto-complete
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viewModel.$autoCompleteInfo
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.receive(on: DispatchQueue.main)
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.sink { [weak self] info in
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guard let self = self else { return }
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guard let textView = self.viewModel.contentMetaText?.textView else { return }
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if self.autoCompleteViewController.view.superview == nil {
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self.autoCompleteViewController.view.frame = self.view.bounds
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// add to container view. seealso: `viewDidLayoutSubviews()`
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self.viewModel.composeContentTableViewCell.contentView.addSubview(self.autoCompleteViewController.view)
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self.addChild(self.autoCompleteViewController)
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self.autoCompleteViewController.didMove(toParent: self)
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self.autoCompleteViewController.view.isHidden = true
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self.tableView.autoCompleteViewController = self.autoCompleteViewController
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}
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self.updateAutoCompleteViewControllerLayout()
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self.autoCompleteViewController.view.isHidden = info == nil
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guard let info = info else { return }
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let symbolBoundingRectInContainer = textView.convert(info.symbolBoundingRect, to: self.autoCompleteViewController.chevronView)
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print(info.symbolBoundingRect)
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self.autoCompleteViewController.view.frame.origin.y = info.textBoundingRect.maxY + self.viewModel.contentTextViewFrame.minY
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self.autoCompleteViewController.viewModel.symbolBoundingRect.value = symbolBoundingRectInContainer
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self.autoCompleteViewController.viewModel.inputText.value = String(info.inputText)
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}
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.store(in: &disposeBag)
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// bind toolbar
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bindToolbarViewModel()
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}
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public override func viewDidLayoutSubviews() {
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super.viewDidLayoutSubviews()
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viewModel.viewLayoutFrame.update(view: view)
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updateAutoCompleteViewControllerLayout()
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}
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public override func viewSafeAreaInsetsDidChange() {
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super.viewSafeAreaInsetsDidChange()
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viewModel.viewLayoutFrame.update(view: view)
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}
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public override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
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super.viewWillTransition(to: size, with: coordinator)
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coordinator.animate { [weak self] coordinatorContext in
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guard let self = self else { return }
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self.viewModel.viewLayoutFrame.update(view: self.view)
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}
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}
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}
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extension ComposeContentViewController {
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private func setupBackgroundColor(theme: Theme) {
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let backgroundColor = UIColor(dynamicProvider: { traitCollection in
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switch traitCollection.userInterfaceStyle {
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case .light: return .systemBackground
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default: return theme.systemElevatedBackgroundColor
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}
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})
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view.backgroundColor = backgroundColor
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tableView.backgroundColor = backgroundColor
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composeContentToolbarBackgroundView.backgroundColor = theme.composeToolbarBackgroundColor
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}
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private func bindToolbarViewModel() {
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viewModel.$isPollActive.assign(to: &composeContentToolbarViewModel.$isPollActive)
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viewModel.$isEmojiActive.assign(to: &composeContentToolbarViewModel.$isEmojiActive)
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viewModel.$isContentWarningActive.assign(to: &composeContentToolbarViewModel.$isContentWarningActive)
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viewModel.$maxTextInputLimit.assign(to: &composeContentToolbarViewModel.$maxTextInputLimit)
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viewModel.$contentWeightedLength.assign(to: &composeContentToolbarViewModel.$contentWeightedLength)
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viewModel.$contentWarningWeightedLength.assign(to: &composeContentToolbarViewModel.$contentWarningWeightedLength)
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}
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private func updateAutoCompleteViewControllerLayout() {
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// pin autoCompleteViewController frame to current view
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if let containerView = autoCompleteViewController.view.superview {
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let viewFrameInWindow = containerView.convert(autoCompleteViewController.view.frame, to: view)
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if viewFrameInWindow.origin.x != 0 {
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autoCompleteViewController.view.frame.origin.x = -viewFrameInWindow.origin.x
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}
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autoCompleteViewController.view.frame.size.width = view.frame.width
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}
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}
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}
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// MARK: - UIScrollViewDelegate
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extension ComposeContentViewController {
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public func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) {
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guard scrollView === tableView else { return }
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let replyToCellFrame = viewModel.replyToCellFrame
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guard replyToCellFrame != .zero else { return }
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// try to find some patterns:
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// print("""
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// repliedToCellFrame: \(viewModel.repliedToCellFrame.value.height)
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// scrollView.contentOffset.y: \(scrollView.contentOffset.y)
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// scrollView.contentSize.height: \(scrollView.contentSize.height)
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// scrollView.frame: \(scrollView.frame)
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// scrollView.adjustedContentInset.top: \(scrollView.adjustedContentInset.top)
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// scrollView.adjustedContentInset.bottom: \(scrollView.adjustedContentInset.bottom)
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// """)
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switch viewModel.scrollViewState {
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case .fold:
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logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): fold")
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guard velocity.y < 0 else { return }
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let offsetY = scrollView.contentOffset.y + scrollView.adjustedContentInset.top
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if offsetY < -44 {
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tableView.contentInset.top = 0
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targetContentOffset.pointee = CGPoint(x: 0, y: -scrollView.adjustedContentInset.top)
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viewModel.scrollViewState = .expand
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}
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case .expand:
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logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): expand")
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guard velocity.y > 0 else { return }
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// check if top across
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let topOffset = (scrollView.contentOffset.y + scrollView.adjustedContentInset.top) - replyToCellFrame.height
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// check if bottom bounce
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let bottomOffsetY = scrollView.contentOffset.y + (scrollView.frame.height - scrollView.adjustedContentInset.bottom)
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let bottomOffset = bottomOffsetY - scrollView.contentSize.height
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if topOffset > 44 {
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// do not interrupt user scrolling
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viewModel.scrollViewState = .fold
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} else if bottomOffset > 44 {
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tableView.contentInset.top = -replyToCellFrame.height
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targetContentOffset.pointee = CGPoint(x: 0, y: -replyToCellFrame.height)
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viewModel.scrollViewState = .fold
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}
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}
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}
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}
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// MARK: - UITableViewDelegate
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extension ComposeContentViewController: UITableViewDelegate { }
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// MARK: - PHPickerViewControllerDelegate
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extension ComposeContentViewController: PHPickerViewControllerDelegate {
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public func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
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picker.dismiss(animated: true, completion: nil)
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let attachmentViewModels: [AttachmentViewModel] = results.map { result in
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AttachmentViewModel(
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api: viewModel.context.apiService,
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authContext: viewModel.authContext,
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input: .pickerResult(result),
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delegate: viewModel
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)
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}
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viewModel.attachmentViewModels += attachmentViewModels
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}
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}
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// MARK: - UIImagePickerControllerDelegate
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extension ComposeContentViewController: UIImagePickerControllerDelegate & UINavigationControllerDelegate {
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public func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
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picker.dismiss(animated: true, completion: nil)
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guard let image = info[.originalImage] as? UIImage else { return }
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// let attachmentService = MastodonAttachmentService(
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// context: context,
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// image: image,
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// initialAuthenticationBox: viewModel.authenticationBox
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// )
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// viewModel.attachmentServices = viewModel.attachmentServices + [attachmentService]
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}
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public func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
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os_log("%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
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picker.dismiss(animated: true, completion: nil)
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}
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}
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// MARK: - UIDocumentPickerDelegate
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extension ComposeContentViewController: UIDocumentPickerDelegate {
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public func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
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guard let url = urls.first else { return }
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// let attachmentService = MastodonAttachmentService(
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// context: context,
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// documentURL: url,
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// initialAuthenticationBox: viewModel.authenticationBox
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// )
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// viewModel.attachmentServices = viewModel.attachmentServices + [attachmentService]
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}
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}
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// MARK: - ComposeContentToolbarViewDelegate
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extension ComposeContentViewController: ComposeContentToolbarViewDelegate {
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func composeContentToolbarView(
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_ viewModel: ComposeContentToolbarView.ViewModel,
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toolbarItemDidPressed action: ComposeContentToolbarView.ViewModel.Action
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) {
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switch action {
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case .attachment:
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assertionFailure()
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case .poll:
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self.viewModel.isPollActive.toggle()
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case .emoji:
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self.viewModel.isEmojiActive.toggle()
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case .contentWarning:
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self.viewModel.isContentWarningActive.toggle()
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if self.viewModel.isContentWarningActive {
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Task { @MainActor in
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try? await Task.sleep(nanoseconds: .second / 20) // 0.05s
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self.viewModel.setContentWarningTextViewFirstResponderIfNeeds()
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} // end Task
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} else {
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if self.viewModel.contentWarningMetaText?.textView.isFirstResponder == true {
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self.viewModel.setContentTextViewFirstResponderIfNeeds()
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}
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}
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case .visibility:
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assertionFailure()
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}
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}
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func composeContentToolbarView(
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_ viewModel: ComposeContentToolbarView.ViewModel,
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attachmentMenuDidPressed action: ComposeContentToolbarView.ViewModel.AttachmentAction
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) {
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switch action {
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case .photoLibrary:
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present(photoLibraryPicker, animated: true, completion: nil)
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case .camera:
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present(imagePickerController, animated: true, completion: nil)
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case .browse:
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#if SNAPSHOT
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guard let image = UIImage(named: "Athens") else { return }
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let attachmentService = MastodonAttachmentService(
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context: context,
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image: image,
|
|
initialAuthenticationBox: viewModel.authenticationBox
|
|
)
|
|
viewModel.attachmentServices = viewModel.attachmentServices + [attachmentService]
|
|
#else
|
|
present(documentPickerController, animated: true, completion: nil)
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
|
|
// MARK: - AutoCompleteViewControllerDelegate
|
|
extension ComposeContentViewController: AutoCompleteViewControllerDelegate {
|
|
func autoCompleteViewController(
|
|
_ viewController: AutoCompleteViewController,
|
|
didSelectItem item: AutoCompleteItem
|
|
) {
|
|
logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): did select item: \(String(describing: item))")
|
|
}
|
|
}
|