/source/library/Interlace/Binding/BinderController.cs

#region Using Directives and Copyright Notice



// Copyright (c) 2007-2010, Computer Consultancy Pty Ltd

// All rights reserved.

// 

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are met:

//     * Redistributions of source code must retain the above copyright

//       notice, this list of conditions and the following disclaimer.

//     * Redistributions in binary form must reproduce the above copyright

//       notice, this list of conditions and the following disclaimer in the

//       documentation and/or other materials provided with the distribution.

//     * Neither the name of the Computer Consultancy Pty Ltd nor the

//       names of its contributors may be used to endorse or promote products

//       derived from this software without specific prior written permission.

// 

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 

// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 

// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 

// ARE DISCLAIMED. IN NO EVENT SHALL COMPUTER CONSULTANCY PTY LTD BE LIABLE 

// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 

// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 

// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 

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// DAMAGE.



using System;

using System.Collections.Generic;

using System.Text;



#endregion



namespace Interlace.Binding

{

    using Views;



    public class BinderController

    {

        List<BinderViewBase> _views;

        IBinderModel _model;

        bool _tracingEnabled;



        internal BinderController(IBinderModel model)

        {

            _views = new List<BinderViewBase>();

            _model = model;

            _model.Controller = this;

        }



        public void OnModelModified()

        {

            object newValue = _model.GetValue();



#if DEBUG

            if (_tracingEnabled)

            {

                Console.WriteLine(string.Format("Binder: Model ({0}) -> Views ({1}), Value \"{2}\".",

                    _model.GetDescriptionForTracing(), _views.Count, newValue));

            }

#endif



            foreach (BinderViewBase view in _views)

            {

                view.SetValue(newValue);

            }

        }



        public void OnViewModified(BinderViewBase view, object newValue)

        {

            _model.SetValue(newValue);



#if DEBUG

            if (_tracingEnabled)

            {

                Console.WriteLine(string.Format("Binder, View -> Model ({0}), Value \"{1}\".",

                    _model.GetDescriptionForTracing(), newValue));

            }

#endif



            OnModelModified();

        }



        public void ConnectBoundToObject(object boundTo)

        {

            _model.ConnectBoundToObject(boundTo);

        }



        public void DisconnectBoundToObject()

        {

            _model.DisconnectBoundToObject();

        }



        public void AddView(BinderViewBase view)

        {

            view.Controller = this;

            _views.Add(view);



            OnModelModified();

        }



        internal List<BinderViewBase> Views

        {

            get { return _views; }

        }



        internal bool TracingEnabled

        {

            get { return _tracingEnabled; }

            set

            {

                _tracingEnabled = value;

            }

        }

    }

}