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- /*****************************************************************************
- * MediaCateogoryViewController.swift
- * VLC for iOS
- *****************************************************************************
- * Copyright (c) 2018 VideoLAN. All rights reserved.
- * $Id$
- *
- * Authors: Carola Nitz <nitz.carola # gmail.com>
- * Mike JS. Choi <mkchoi212 # icloud.com>
- *
- * Refer to the COPYING file of the official project for license.
- *****************************************************************************/
- import Foundation
- class VLCMediaCategoryViewController: UICollectionViewController, UICollectionViewDelegateFlowLayout, UISearchResultsUpdating, UISearchControllerDelegate, IndicatorInfoProvider {
- var model: MediaLibraryBaseModel
- private var services: Services
- private var searchController: UISearchController?
- private let searchDataSource = VLCLibrarySearchDisplayDataSource()
- private var rendererButton: UIButton
- private lazy var editController: VLCEditController = {
- let editController = VLCEditController(mediaLibraryService:services.medialibraryService, model: model)
- editController.delegate = self
- return editController
- }()
- private var editToolbarConstraint: NSLayoutConstraint?
- private var cachedCellSize = CGSize.zero
- // @available(iOS 11.0, *)
- // lazy var dragAndDropManager: VLCDragAndDropManager = { () -> VLCDragAndDropManager<T> in
- // VLCDragAndDropManager<T>(subcategory: VLCMediaSubcategories<>)
- // }()
- @objc private lazy var sortActionSheet: VLCActionSheet = {
- let actionSheet = VLCActionSheet()
- actionSheet.delegate = self
- actionSheet.dataSource = self
- actionSheet.modalPresentationStyle = .custom
- actionSheet.setAction { [weak self] item in
- guard let sortingCriteria = item as? VLCMLSortingCriteria else {
- return
- }
- self?.model.sort(by: sortingCriteria)
- self?.sortActionSheet.removeActionSheet()
- }
- return actionSheet
- }()
- lazy var emptyView: VLCEmptyLibraryView = {
- let name = String(describing: VLCEmptyLibraryView.self)
- let nib = Bundle.main.loadNibNamed(name, owner: self, options: nil)
- guard let emptyView = nib?.first as? VLCEmptyLibraryView else { fatalError("Can't find nib for \(name)") }
- return emptyView
- }()
- let editCollectionViewLayout: UICollectionViewFlowLayout = {
- let editCollectionViewLayout = UICollectionViewFlowLayout()
- editCollectionViewLayout.minimumLineSpacing = 1
- editCollectionViewLayout.minimumInteritemSpacing = 0
- return editCollectionViewLayout
- }()
- @available(*, unavailable)
- init() {
- fatalError()
- }
- init(services: Services, model: MediaLibraryBaseModel) {
- self.services = services
- self.model = model
- self.rendererButton = services.rendererDiscovererManager.setupRendererButton()
- super.init(collectionViewLayout: UICollectionViewFlowLayout())
- NotificationCenter.default.addObserver(self, selector: #selector(themeDidChange), name: .VLCThemeDidChangeNotification, object: nil)
- navigationItem.rightBarButtonItems = [editButtonItem, UIBarButtonItem(customView: rendererButton)]
- }
- override var preferredStatusBarStyle: UIStatusBarStyle {
- return PresentationTheme.current.colors.statusBarStyle
- }
- @objc func reloadData() {
- DispatchQueue.main.async {
- [weak self] in
- self?.collectionView?.reloadData()
- self?.updateUIForContent()
- }
- }
- @available(*, unavailable)
- required init?(coder aDecoder: NSCoder) {
- fatalError("init(coder: ) has not been implemented")
- }
- override func viewDidLoad() {
- super.viewDidLoad()
- setupCollectionView()
- setupSearchController()
- setupEditToolbar()
- _ = (MLMediaLibrary.sharedMediaLibrary() as! MLMediaLibrary).libraryDidAppear()
- }
- override func viewWillAppear(_ animated: Bool) {
- super.viewWillAppear(animated)
- let manager = services.rendererDiscovererManager
- if manager.discoverers.isEmpty {
- // Either didn't start or stopped before
- manager.start()
- }
- manager.presentingViewController = self
- }
- @objc func themeDidChange() {
- collectionView?.backgroundColor = PresentationTheme.current.colors.background
- editController.view.backgroundColor = PresentationTheme.current.colors.background
- setNeedsStatusBarAppearanceUpdate()
- }
- func setupEditToolbar() {
- editController.view.translatesAutoresizingMaskIntoConstraints = false
- view.addSubview(editController.view)
- editToolbarConstraint = editController.view.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: 60)
- NSLayoutConstraint.activate([
- editToolbarConstraint!,
- editController.view.leadingAnchor.constraint(equalTo: view.leadingAnchor),
- editController.view.trailingAnchor.constraint(equalTo: view.trailingAnchor),
- editController.view.heightAnchor.constraint(equalToConstant: 50)
- ])
- }
- override func viewDidAppear(_ animated: Bool) {
- super.viewDidAppear(animated)
- reloadData()
- }
- func updateUIForContent() {
- let isEmpty = collectionView?.numberOfItems(inSection: 0) == 0
- if isEmpty {
- collectionView?.setContentOffset(.zero, animated: false)
- }
- collectionView?.backgroundView = isEmpty ? emptyView : nil
-
- if #available(iOS 11.0, *) {
- navigationItem.searchController = isEmpty ? nil : searchController
- } else {
- navigationItem.titleView = isEmpty ? nil : searchController?.searchBar
- }
- }
- // MARK: Renderer
- override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
- super.viewWillTransition(to: size, with: coordinator)
- collectionView?.collectionViewLayout.invalidateLayout()
- cachedCellSize = .zero
- }
- // MARK: - Edit
- override func setEditing(_ editing: Bool, animated: Bool) {
- super.setEditing(editing, animated: animated)
- // might have an issue if the old datasource was search
- // Most of the edit logic is handled inside editController
- collectionView?.dataSource = editing ? editController : self
- collectionView?.delegate = editing ? editController : self
- editController.resetSelections()
- displayEditToolbar()
- let layoutToBe = editing ? editCollectionViewLayout : UICollectionViewFlowLayout()
- collectionView?.setCollectionViewLayout(layoutToBe, animated: false, completion: {
- [weak self] finished in
- guard finished else {
- assertionFailure("VLCMediaSubcategoryViewController: Edit layout transition failed.")
- return
- }
- self?.reloadData()
- })
- }
- private func displayEditToolbar() {
- UIView.animate(withDuration: 0.3) { [weak self] in
- self?.editToolbarConstraint?.constant = self?.isEditing == true ? 0 : 60
- self?.view.layoutIfNeeded()
- }
- }
- // MARK: - Search
- func updateSearchResults(for searchController: UISearchController) {
- searchDataSource.shouldReloadTable(forSearch: searchController.searchBar.text, searchableFiles: model.anyfiles)
- collectionView?.reloadData()
- }
- func didPresentSearchController(_ searchController: UISearchController) {
- collectionView?.dataSource = searchDataSource
- }
- func didDismissSearchController(_ searchController: UISearchController) {
- collectionView?.dataSource = self
- }
- func indicatorInfo(for pagerTabStripController: PagerTabStripViewController) -> IndicatorInfo {
- return IndicatorInfo(title:model.indicatorName)
- }
- // MARK: - UICollectionViewDataSource
- override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
- return model.anyfiles.count
- }
- override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
- guard let mediaCell = collectionView.dequeueReusableCell(withReuseIdentifier:model.cellType.defaultReuseIdentifier, for: indexPath) as? BaseCollectionViewCell else {
- assertionFailure("you forgot to register the cell or the cell is not a subclass of BaseCollectionViewCell")
- return UICollectionViewCell()
- }
- let mediaObject = model.anyfiles[indexPath.row]
- if let media = mediaObject as? VLCMLMedia {
- assert(media.mainFile() != nil, "The mainfile is nil")
- mediaCell.media = media.mainFile() != nil ? media : nil
- } else {
- mediaCell.media = mediaObject
- }
- return mediaCell
- }
- // MARK: - UICollectionViewDelegate
- override func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
- if let media = model.anyfiles[indexPath.row] as? VLCMLMedia {
- play(media: media)
- } else if let mediaCollection = model.anyfiles[indexPath.row] as? MediaCollectionModel {
- let collectionViewController = VLCCollectionCategoryViewController(services, mediaCollection: mediaCollection)
- navigationController?.pushViewController(collectionViewController, animated: true)
- }
- }
- }
- // MARK: - UICollectionViewDelegateFlowLayout
- extension VLCMediaCategoryViewController {
- func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
- if cachedCellSize == .zero {
- if #available(iOS 11.0, *) {
- cachedCellSize = model.cellType.cellSizeForWidth(collectionView.safeAreaLayoutGuide.layoutFrame.width)
- } else {
- cachedCellSize = model.cellType.cellSizeForWidth(collectionView.frame.size.width)
- }
- }
- return cachedCellSize
- }
- func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {
- return UIEdgeInsets(top: model.cellType.edgePadding, left: model.cellType.edgePadding, bottom: model.cellType.edgePadding, right: model.cellType.edgePadding)
- }
- func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
- return model.cellType.edgePadding
- }
- func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
- return model.cellType.interItemPadding
- }
- override func handleSort() {
- present(sortActionSheet, animated: false, completion: nil)
- }
- }
- // MARK: VLCActionSheetDelegate
- extension VLCMediaCategoryViewController: VLCActionSheetDelegate {
- func headerViewTitle() -> String? {
- return NSLocalizedString("HEADER_TITLE_SORT", comment: "")
- }
- // This provide the item to send to the selection action
- func itemAtIndexPath(_ indexPath: IndexPath) -> Any? {
- let enabledSortCriteria = model.sortModel.sortingCriteria
- if indexPath.row < enabledSortCriteria.count {
- return enabledSortCriteria[indexPath.row]
- }
- assertionFailure("VLCMediaCategoryViewController: VLCActionSheetDelegate: IndexPath out of range")
- return nil
- }
- }
- // MARK: VLCActionSheetDataSource
- extension VLCMediaCategoryViewController: VLCActionSheetDataSource {
- func numberOfRows() -> Int {
- return model.sortModel.sortingCriteria.count
- }
- func actionSheet(collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
- guard let cell = collectionView.dequeueReusableCell(
- withReuseIdentifier: VLCActionSheetCell.identifier, for: indexPath) as? VLCActionSheetCell else {
- assertionFailure("VLCMediaCategoryViewController: VLCActionSheetDataSource: Unable to dequeue reusable cell")
- return UICollectionViewCell()
- }
- let sortingCriterias = model.sortModel.sortingCriteria
- guard indexPath.row < sortingCriterias.count else {
- assertionFailure("VLCMediaCategoryViewController: VLCActionSheetDataSource: IndexPath out of range")
- return cell
- }
- cell.name.text = String(describing: sortingCriterias[indexPath.row])
- return cell
- }
- }
- extension VLCMediaCategoryViewController: VLCEditControllerDelegate {
- func editController(editController: VLCEditController, cellforItemAt indexPath: IndexPath) -> MediaEditCell? {
- return collectionView.cellForItem(at: indexPath) as? MediaEditCell
- }
- }
- private extension VLCMediaCategoryViewController {
- func setupCollectionView() {
- let cellNib = UINib(nibName: model.cellType.nibName, bundle: nil)
- collectionView?.register(cellNib, forCellWithReuseIdentifier: model.cellType.defaultReuseIdentifier)
- if let editCell = (model as? EditableMLModel)?.editCellType() {
- let editCellNib = UINib(nibName: editCell.nibName, bundle: nil)
- collectionView?.register(editCellNib, forCellWithReuseIdentifier: editCell.defaultReuseIdentifier)
- }
- collectionView?.backgroundColor = PresentationTheme.current.colors.background
- collectionView?.alwaysBounceVertical = true
- if #available(iOS 11.0, *) {
- collectionView?.contentInsetAdjustmentBehavior = .always
- // collectionView?.dragDelegate = dragAndDropManager
- // collectionView?.dropDelegate = dragAndDropManager
- }
- }
- func setupSearchController() {
- searchController = UISearchController(searchResultsController: nil)
- searchController?.searchResultsUpdater = self
- searchController?.dimsBackgroundDuringPresentation = false
- searchController?.delegate = self
- if let textfield = searchController?.searchBar.value(forKey: "searchField") as? UITextField {
- if let backgroundview = textfield.subviews.first {
- backgroundview.backgroundColor = UIColor.white
- backgroundview.layer.cornerRadius = 10
- backgroundview.clipsToBounds = true
- }
- }
- }
- }
- // MARK: - Player
- extension VLCMediaCategoryViewController {
- func play(mediaObject: NSManagedObject) {
- VLCPlaybackController.sharedInstance().playMediaLibraryObject(mediaObject)
- }
- func play(media: VLCMLMedia) {
- VLCPlaybackController.sharedInstance().fullscreenSessionRequested = media.subtype() != .albumTrack
- VLCPlaybackController.sharedInstance().play(media)
- }
- }
- // MARK: - MediaLibraryModelView
- extension VLCMediaCategoryViewController {
- func dataChanged() {
- reloadData()
- }
- }
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