mpv/osdep/macos/remote_command_center.swift

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/*
* 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 MediaPlayer
@available(macOS 10.12.2, *)
class RemoteCommandCenter: NSObject {
enum KeyType {
case normal
case repeatable
}
var config: [MPRemoteCommand:[String:Any]] = [
MPRemoteCommandCenter.shared().pauseCommand: [
"mpKey": MP_KEY_PAUSEONLY,
"keyType": KeyType.normal
],
MPRemoteCommandCenter.shared().playCommand: [
"mpKey": MP_KEY_PLAYONLY,
"keyType": KeyType.normal
],
MPRemoteCommandCenter.shared().stopCommand: [
"mpKey": MP_KEY_STOP,
"keyType": KeyType.normal
],
MPRemoteCommandCenter.shared().nextTrackCommand: [
"mpKey": MP_KEY_NEXT,
"keyType": KeyType.normal
],
MPRemoteCommandCenter.shared().previousTrackCommand: [
"mpKey": MP_KEY_PREV,
"keyType": KeyType.normal
],
MPRemoteCommandCenter.shared().togglePlayPauseCommand: [
"mpKey": MP_KEY_PLAY,
"keyType": KeyType.normal
],
MPRemoteCommandCenter.shared().seekForwardCommand: [
"mpKey": MP_KEY_FORWARD,
"keyType": KeyType.repeatable,
"state": MP_KEY_STATE_UP
],
MPRemoteCommandCenter.shared().seekBackwardCommand: [
"mpKey": MP_KEY_REWIND,
"keyType": KeyType.repeatable,
"state": MP_KEY_STATE_UP
],
]
var nowPlayingInfo: [String: Any] = [
MPNowPlayingInfoPropertyMediaType: NSNumber(value: MPNowPlayingInfoMediaType.video.rawValue),
MPNowPlayingInfoPropertyDefaultPlaybackRate: NSNumber(value: 1),
MPNowPlayingInfoPropertyPlaybackProgress: NSNumber(value: 0.0),
MPMediaItemPropertyPlaybackDuration: NSNumber(value: 0),
MPMediaItemPropertyTitle: "mpv",
MPMediaItemPropertyAlbumTitle: "mpv",
MPMediaItemPropertyArtist: "mpv",
]
let disabledCommands: [MPRemoteCommand] = [
MPRemoteCommandCenter.shared().changePlaybackRateCommand,
MPRemoteCommandCenter.shared().changeRepeatModeCommand,
MPRemoteCommandCenter.shared().changeShuffleModeCommand,
MPRemoteCommandCenter.shared().skipForwardCommand,
MPRemoteCommandCenter.shared().skipBackwardCommand,
MPRemoteCommandCenter.shared().changePlaybackPositionCommand,
MPRemoteCommandCenter.shared().enableLanguageOptionCommand,
MPRemoteCommandCenter.shared().disableLanguageOptionCommand,
MPRemoteCommandCenter.shared().ratingCommand,
MPRemoteCommandCenter.shared().likeCommand,
MPRemoteCommandCenter.shared().dislikeCommand,
MPRemoteCommandCenter.shared().bookmarkCommand,
]
var mpInfoCenter: MPNowPlayingInfoCenter { get { return MPNowPlayingInfoCenter.default() } }
var isPaused: Bool = false { didSet { updatePlaybackState() } }
@objc override init() {
super.init()
for cmd in disabledCommands {
cmd.isEnabled = false
}
}
@objc func start() {
for (cmd, _) in config {
cmd.isEnabled = true
cmd.addTarget { [unowned self] event in
return self.cmdHandler(event)
}
}
if let app = NSApp as? Application, let icon = app.getMPVIcon(),
#available(macOS 10.13.2, *)
{
let albumArt = MPMediaItemArtwork(boundsSize: icon.size) { _ in
return icon
}
nowPlayingInfo[MPMediaItemPropertyArtwork] = albumArt
}
mpInfoCenter.nowPlayingInfo = nowPlayingInfo
mpInfoCenter.playbackState = .playing
NotificationCenter.default.addObserver(
self,
selector: #selector(self.makeCurrent),
name: NSApplication.willBecomeActiveNotification,
object: nil
)
}
@objc func stop() {
for (cmd, _) in config {
cmd.isEnabled = false
cmd.removeTarget(nil)
}
mpInfoCenter.nowPlayingInfo = nil
mpInfoCenter.playbackState = .unknown
}
@objc func makeCurrent(notification: NSNotification) {
mpInfoCenter.playbackState = .paused
mpInfoCenter.playbackState = .playing
updatePlaybackState()
}
func updatePlaybackState() {
mpInfoCenter.playbackState = isPaused ? .paused : .playing
}
func cmdHandler(_ event: MPRemoteCommandEvent) -> MPRemoteCommandHandlerStatus {
guard let cmdConfig = config[event.command],
let mpKey = cmdConfig["mpKey"] as? Int32,
let keyType = cmdConfig["keyType"] as? KeyType else
{
return .commandFailed
}
var state = cmdConfig["state"] as? UInt32 ?? 0
if let currentState = cmdConfig["state"] as? UInt32, keyType == .repeatable {
state = MP_KEY_STATE_DOWN
config[event.command]?["state"] = MP_KEY_STATE_DOWN
if currentState == MP_KEY_STATE_DOWN {
state = MP_KEY_STATE_UP
config[event.command]?["state"] = MP_KEY_STATE_UP
}
}
EventsResponder.sharedInstance().handleMPKey(mpKey, withMask: Int32(state))
return .success
}
@objc func processEvent(_ event: UnsafeMutablePointer<mpv_event>) {
switch event.pointee.event_id {
case MPV_EVENT_PROPERTY_CHANGE:
handlePropertyChange(event)
default:
break
}
}
func handlePropertyChange(_ event: UnsafeMutablePointer<mpv_event>) {
let pData = OpaquePointer(event.pointee.data)
guard let property = UnsafePointer<mpv_event_property>(pData)?.pointee else {
return
}
switch String(cString: property.name) {
case "pause" where property.format == MPV_FORMAT_FLAG:
isPaused = LibmpvHelper.mpvFlagToBool(property.data) ?? false
default:
break
}
}
}