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🎥 Command line media player
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Swift
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291/* * This file is part of mpv. * * mpv is free software) you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation) either * version 2.1 of the License, or (at your option) any later version. * * mpv is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY) without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with mpv. If not, see <http://www.gnu.org/licenses/>. */
import Cocoa
extension NSTouchBar.CustomizationIdentifier { public static let customId: NSTouchBar.CustomizationIdentifier = "io.mpv.touchbar"}
extension NSTouchBarItem.Identifier { public static let seekBar = NSTouchBarItem.Identifier(custom: ".seekbar") public static let play = NSTouchBarItem.Identifier(custom: ".play") public static let nextItem = NSTouchBarItem.Identifier(custom: ".nextItem") public static let previousItem = NSTouchBarItem.Identifier(custom: ".previousItem") public static let nextChapter = NSTouchBarItem.Identifier(custom: ".nextChapter") public static let previousChapter = NSTouchBarItem.Identifier(custom: ".previousChapter") public static let cycleAudio = NSTouchBarItem.Identifier(custom: ".cycleAudio") public static let cycleSubtitle = NSTouchBarItem.Identifier(custom: ".cycleSubtitle") public static let currentPosition = NSTouchBarItem.Identifier(custom: ".currentPosition") public static let timeLeft = NSTouchBarItem.Identifier(custom: ".timeLeft")
init(custom: String) { self.init(NSTouchBar.CustomizationIdentifier.customId + custom) }}
extension TouchBar { typealias ViewHandler = (Config) -> (NSView)
struct Config { let name: String let command: String var item: NSCustomTouchBarItem? var constraint: NSLayoutConstraint? let image: NSImage let imageAlt: NSImage let handler: ViewHandler
init( name: String = "", command: String = "", item: NSCustomTouchBarItem? = nil, constraint: NSLayoutConstraint? = nil, image: NSImage? = nil, imageAlt: NSImage? = nil, handler: @escaping ViewHandler = { _ in return NSButton(title: "", target: nil, action: nil) } ) { self.name = name self.command = command self.item = item self.constraint = constraint self.image = image ?? NSImage(size: NSSize(width: 1, height: 1)) self.imageAlt = imageAlt ?? NSImage(size: NSSize(width: 1, height: 1)) self.handler = handler } }}
class TouchBar: NSTouchBar, NSTouchBarDelegate, EventSubscriber { unowned let appHub: AppHub var event: EventHelper? { return appHub.event } var input: InputHelper { return appHub.input } var configs: [NSTouchBarItem.Identifier: Config] = [:] var observers: [NSKeyValueObservation] = [] var isPaused: Bool = false { didSet { updatePlayButton() } } var position: Double = 0 { didSet { updateTouchBarTimeItems() } } var duration: Double = 0 { didSet { updateTouchBarTimeItems() } } var rate: Double = 1
init(_ appHub: AppHub) { self.appHub = appHub super.init()
configs = [ .seekBar: Config(name: "Seek Bar", command: "seek %f absolute-percent", handler: createSlider), .currentPosition: Config(name: "Current Position", handler: createText), .timeLeft: Config(name: "Time Left", handler: createText), .play: Config( name: "Play Button", command: "cycle pause", image: .init(named: NSImage.touchBarPauseTemplateName), imageAlt: .init(named: NSImage.touchBarPlayTemplateName), handler: createButton ), .previousItem: Config( name: "Previous Playlist Item", command: "playlist-prev", image: .init(named: NSImage.touchBarGoBackTemplateName), handler: createButton ), .nextItem: Config( name: "Next Playlist Item", command: "playlist-next", image: .init(named: NSImage.touchBarGoForwardTemplateName), handler: createButton ), .previousChapter: Config( name: "Previous Chapter", command: "add chapter -1", image: .init(named: NSImage.touchBarSkipBackTemplateName), handler: createButton ), .nextChapter: Config( name: "Next Chapter", command: "add chapter 1", image: .init(named: NSImage.touchBarSkipAheadTemplateName), handler: createButton ), .cycleAudio: Config( name: "Cycle Audio", command: "cycle audio", image: .init(named: NSImage.touchBarAudioInputTemplateName), handler: createButton ), .cycleSubtitle: Config( name: "Cycle Subtitle", command: "cycle sub", image: .init(named: NSImage.touchBarComposeTemplateName), handler: createButton ) ]
delegate = self customizationIdentifier = .customId defaultItemIdentifiers = [.play, .previousItem, .nextItem, .seekBar] customizationAllowedItemIdentifiers = [.play, .seekBar, .previousItem, .nextItem, .previousChapter, .nextChapter, .cycleAudio, .cycleSubtitle, .currentPosition, .timeLeft] observers += [observe(\.isVisible, options: [.new]) { _, change in self.changed(visibility: change.newValue) }]
event?.subscribe(self, event: .init(name: "duration", format: MPV_FORMAT_DOUBLE)) event?.subscribe(self, event: .init(name: "time-pos", format: MPV_FORMAT_DOUBLE)) event?.subscribe(self, event: .init(name: "speed", format: MPV_FORMAT_DOUBLE)) event?.subscribe(self, event: .init(name: "pause", format: MPV_FORMAT_FLAG)) event?.subscribe(self, event: .init(name: "MPV_EVENT_END_FILE")) }
required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }
func touchBar(_ touchBar: NSTouchBar, makeItemForIdentifier identifier: NSTouchBarItem.Identifier) -> NSTouchBarItem? { guard let config = configs[identifier] else { return nil }
let item = NSCustomTouchBarItem(identifier: identifier) item.view = config.handler(config) item.customizationLabel = config.name configs[identifier]?.item = item observers += [item.observe(\.isVisible, options: [.new]) { _, change in self.changed(visibility: change.newValue) }] return item }
lazy var createButton: ViewHandler = { config in return NSButton(image: config.image, target: self, action: #selector(Self.buttonAction(_:))) }
lazy var createText: ViewHandler = { _ in let text = NSTextField(labelWithString: "0:00") text.alignment = .center return text }
lazy var createSlider: ViewHandler = { _ in let slider = NSSlider(target: self, action: #selector(Self.seekbarChanged(_:))) slider.minValue = 0 slider.maxValue = 100 return slider }
func changed(visibility: Bool?) { if let visible = visibility, visible { updateTouchBarTimeItems() updatePlayButton() } }
func updateTouchBarTimeItems() { if !isVisible { return } updateSlider() updateTimeLeft() updateCurrentPosition() }
func updateSlider() { guard let config = configs[.seekBar], let slider = config.item?.view as? NSSlider else { return } if !(config.item?.isVisible ?? false) { return }
slider.isEnabled = duration > 0 if !slider.isHighlighted { slider.doubleValue = slider.isEnabled ? (position / duration) * 100 : 0 } }
func updateTimeLeft() { guard let config = configs[.timeLeft], let text = config.item?.view as? NSTextField else { return } if !(config.item?.isVisible ?? false) { return }
removeConstraintFor(identifier: .timeLeft) text.stringValue = duration > 0 ? "-" + format(time: Int(floor(duration) - floor(position))) : "" if !text.stringValue.isEmpty { applyConstraintFrom(string: "-" + format(time: Int(duration)), identifier: .timeLeft) } }
func updateCurrentPosition() { guard let config = configs[.currentPosition], let text = config.item?.view as? NSTextField else { return } if !(config.item?.isVisible ?? false) { return }
text.stringValue = format(time: Int(floor(position))) removeConstraintFor(identifier: .currentPosition) applyConstraintFrom(string: format(time: Int(duration > 0 ? duration : position)), identifier: .currentPosition) }
func updatePlayButton() { guard let config = configs[.play], let button = config.item?.view as? NSButton else { return } if !isVisible || !(config.item?.isVisible ?? false) { return } button.image = isPaused ? configs[.play]?.imageAlt : configs[.play]?.image }
@objc func buttonAction(_ button: NSButton) { guard let identifier = getIdentifierFrom(view: button), let command = configs[identifier]?.command else { return } input.command(command) }
@objc func seekbarChanged(_ slider: NSSlider) { guard let identifier = getIdentifierFrom(view: slider), let command = configs[identifier]?.command else { return } input.command(String(format: command, slider.doubleValue)) }
func format(time: Int) -> String { let formatter = DateComponentsFormatter() formatter.unitsStyle = .positional formatter.zeroFormattingBehavior = time >= (60 * 60) ? [.dropLeading] : [] formatter.allowedUnits = time >= (60 * 60) ? [.hour, .minute, .second] : [.minute, .second] return formatter.string(from: TimeInterval(time)) ?? "0:00" }
func removeConstraintFor(identifier: NSTouchBarItem.Identifier) { guard let text = configs[identifier]?.item?.view as? NSTextField, let constraint = configs[identifier]?.constraint as? NSLayoutConstraint else { return } text.removeConstraint(constraint) }
func applyConstraintFrom(string: String, identifier: NSTouchBarItem.Identifier) { guard let text = configs[identifier]?.item?.view as? NSTextField else { return } let fullString = string.components(separatedBy: .decimalDigits).joined(separator: "0") let textField = NSTextField(labelWithString: fullString) let con = NSLayoutConstraint(item: text, attribute: .width, relatedBy: .equal, toItem: nil, attribute: .notAnAttribute, multiplier: 1.1, constant: ceil(textField.frame.size.width)) text.addConstraint(con) configs[identifier]?.constraint = con }
func getIdentifierFrom(view: NSView) -> NSTouchBarItem.Identifier? { for (identifier, config) in configs where config.item?.view == view { return identifier } return nil }
func handle(event: EventHelper.Event) { switch event.name { case "MPV_EVENT_END_FILE": position = 0 duration = 0 case "time-pos": let newPosition = max(event.double ?? 0, 0) if Int((floor(newPosition) - floor(position)) / rate) != 0 { position = newPosition } case "pause": isPaused = event.bool ?? false case "duration": duration = event.double ?? 0 case "speed": rate = event.double ?? 1 default: break } }}