void PlayVideo(BinkPlayerWidget player, string video, PlayingVideo pv, Action onComplete = null)
        {
            if (!modData.DefaultFileSystem.Exists(video))
            {
                ConfirmationDialogs.ButtonPrompt(
                    title: "Video not installed",
                    text: "The game videos can be installed from the\n\"Manage Content\" menu in the mod chooser.",
                    cancelText: "Back",
                    onCancel: () => { });
            }
            else
            {
                StopVideo(player);

                playingVideo = pv;
                player.Load(video);

                // video playback runs asynchronously
                player.PlayThen(() =>
                {
                    StopVideo(player);
                    if (onComplete != null)
                    {
                        onComplete();
                    }
                });

                // Mute other distracting sounds
                MuteSounds();
            }
        }
        void StopVideo(BinkPlayerWidget player)
        {
            if (playingVideo == PlayingVideo.None)
            {
                return;
            }

            UnMuteSounds();
            player.Stop();
            playingVideo = PlayingVideo.None;
        }
        public NewMissionBrowserLogic(Widget widget, ModData modData, World world, Action onStart, Action onExit)
        {
            this.modData          = modData;
            this.onStart          = onStart;
            Game.BeforeGameStart += OnGameStart;

            missionList = widget.Get <ScrollPanelWidget>("MISSION_LIST");

            headerTemplate = widget.Get <ScrollItemWidget>("HEADER");
            template       = widget.Get <ScrollItemWidget>("TEMPLATE");

            var title = widget.GetOrNull <LabelWidget>("MISSIONBROWSER_TITLE");

            if (title != null)
            {
                title.GetText = () => playingVideo != PlayingVideo.None ? selectedMap.Title : title.Text;
            }

            widget.Get("MISSION_INFO").IsVisible = () => selectedMap != null;

            var previewWidget = widget.Get <MapPreviewWidget>("MISSION_PREVIEW");

            previewWidget.Preview   = () => selectedMap;
            previewWidget.IsVisible = () => playingVideo == PlayingVideo.None;

            videoPlayer = widget.Get <BinkPlayerWidget>("MISSION_VIDEO");
            widget.Get("MISSION_BIN").IsVisible = () => playingVideo != PlayingVideo.None;
            fullscreenVideoPlayer = Ui.LoadWidget <BackgroundWidget>("FULLSCREEN_PLAYER", Ui.Root, new WidgetArgs {
                { "world", world }
            });

            descriptionPanel = widget.Get <ScrollPanelWidget>("MISSION_DESCRIPTION_PANEL");

            description     = descriptionPanel.Get <LabelWidget>("MISSION_DESCRIPTION");
            descriptionFont = Game.Renderer.Fonts[description.Font];

            difficultyButton = widget.Get <DropDownButtonWidget>("DIFFICULTY_DROPDOWNBUTTON");
            gameSpeedButton  = widget.GetOrNull <DropDownButtonWidget>("GAMESPEED_DROPDOWNBUTTON");

            //startBriefingVideoButton = widget.Get<ButtonWidget>("START_BRIEFING_VIDEO_BUTTON");
            stopBriefingVideoButton           = widget.Get <ButtonWidget>("STOP_BRIEFING_VIDEO_BUTTON");
            stopBriefingVideoButton.IsVisible = () => playingVideo == PlayingVideo.Briefing;
            stopBriefingVideoButton.OnClick   = () => StopVideo(videoPlayer);

            startInfoVideoButton          = widget.Get <ButtonWidget>("START_INFO_VIDEO_BUTTON");
            stopInfoVideoButton           = widget.Get <ButtonWidget>("STOP_INFO_VIDEO_BUTTON");
            stopInfoVideoButton.IsVisible = () => playingVideo == PlayingVideo.Info;
            stopInfoVideoButton.OnClick   = () => StopVideo(videoPlayer);

            var allPreviews = new List <MapPreview>();

            missionList.RemoveChildren();

            // Add a group for each campaign
            if (modData.Manifest.Missions.Any())
            {
                var yaml = MiniYaml.Merge(modData.Manifest.Missions.Select(
                                              m => MiniYaml.FromStream(modData.DefaultFileSystem.Open(m), m)));

                foreach (var kv in yaml)
                {
                    var missionMapPaths = kv.Value.Nodes.Select(n => n.Key).ToList();

                    var previews = modData.MapCache
                                   .Where(p => p.Class == MapClassification.System && p.Status == MapStatus.Available)
                                   .Select(p => new
                    {
                        Preview = p,
                        Index   = missionMapPaths.IndexOf(Path.GetFileName(p.Package.Name))
                    })
                                   .Where(x => x.Index != -1)
                                   .OrderBy(x => x.Index)
                                   .Select(x => x.Preview);

                    if (previews.Any())
                    {
                        CreateMissionGroup(kv.Key, previews);
                        allPreviews.AddRange(previews);
                    }
                }
            }

            // Add an additional group for loose missions
            var loosePreviews = modData.MapCache
                                .Where(p => p.Status == MapStatus.Available && p.Visibility.HasFlag(MapVisibility.MissionSelector) && !allPreviews.Any(a => a.Uid == p.Uid));

            if (loosePreviews.Any())
            {
                CreateMissionGroup("Missions", loosePreviews);
                allPreviews.AddRange(loosePreviews);
            }

            if (allPreviews.Any())
            {
                SelectMap(allPreviews.First());
            }

            // Preload map preview and rules to reduce jank
            new Thread(() =>
            {
                foreach (var p in allPreviews)
                {
                    p.GetMinimap();
                    p.PreloadRules();
                }
            }).Start();

            var startButton = widget.Get <ButtonWidget>("STARTGAME_BUTTON");

            startButton.OnClick    = StartMissionClicked;
            startButton.IsDisabled = () => selectedMap == null || selectedMap.InvalidCustomRules;

            widget.Get <ButtonWidget>("BACK_BUTTON").OnClick = () =>
            {
                StopVideo(videoPlayer);
                Game.Disconnect();
                Ui.CloseWindow();
                onExit();
            };
        }