using System;
using System.Linq;
using JD.Application.View;
using JD.Application.View.Actions;
using JD.Interfaces.Player;
using JD.Collections;
using JD.Sequencers.Windowlesses;

namespace JD.VideoPlayer.Project
{

    public abstract class WaveControlledVideoPad : AbstractVideoPad
    {

        #region Properties

        public override IPlayerProvider PlayerProvider
        {
            set
            {
                var waveControl = PlayerProvider as WaveControl;
                if (waveControl != null)
                {
                    waveControl.Selection.CollectionChanged -= Selection_CollectionChanged;
                }

                base.PlayerProvider = value;

                if (waveControl != null)
                {
                    waveControl.Selection.CollectionChanged += Selection_CollectionChanged;
                }

            }
        }

        #endregion

        #region Private

        private void Selection_CollectionChanged(object sender, CollectionChangedEventArgs<WindowlessControl> e)
        {
            if (e.Action != CollectionChangeAction.EndUpdated) return;

            UpdateConductors();
        }

        #endregion

    }

}