using System.Threading;

namespace JD.Threading.Dispatch
{
    /// <summary>
    /// Must be created on the UI thread that it is supposed to represent.
    /// </summary>

    internal class DefaultMessageLoop : IMessageLoop
    {
        #region Variables

        private readonly WindowsFormsThreadDispatchStrategy m_underlyingStrategy = new WindowsFormsThreadDispatchStrategy();

        #endregion

        #region Properties

        public bool InvokeRequired
        {
            get { return m_underlyingStrategy.InvokeRequired; }
        }

        #endregion

        #region Methods

        public void Invoke(System.Action action)
        {
            m_underlyingStrategy.Dispatch(action);
        }

        public void BeginInvoke(System.Action action)
        {
            m_underlyingStrategy.DispatchAsync(action, true);
        }

        public void WaitAndPump(WaitHandle waitHandle)
        {
            Win32MessageLoop.WaitAndPump(waitHandle);
        }

        #endregion
    }
}