Type.registerNamespace('Custom.UI');

///////////////////////////////////////////////////////////////////////
// ColorDragSourceBehavior class

Custom.UI.ColorDragSourceBehavior = function(element, color)
{
    Custom.UI.ColorDragSourceBehavior.initializeBase(this, [element]);
    this._mouseDownHandler = Function.createDelegate(this,
        this.mouseDownHandler);
    this._color = color;
    this._visual = null;
}

Custom.UI.ColorDragSourceBehavior.prototype =
{
    // IDragSource methods
    get_dragDataType: function()
    {
        return 'DragDropColor';
    },

    getDragData: function(context)
    {
        return this._color;
    },

    get_dragMode: function()
    {
        return Sys.Preview.UI.DragMode.Copy;
    },

    onDragStart: function() {},

    onDrag: function() {},

    onDragEnd: function(canceled)
    {
        if (this._visual)
            this.get_element().parentNode.removeChild(this._visual);
    },
    
    // Other methods
    initialize: function()
    {
        Custom.UI.ColorDragSourceBehavior.callBaseMethod(this,
            'initialize');
        $addHandler(this.get_element(), 'mousedown',
            this._mouseDownHandler)
    },

    mouseDownHandler: function(ev)
    {
        window._event = ev; // Needed internally by _DragDropManager

        this._visual = this.get_element().cloneNode(true);
        this._visual.style.opacity = '0.4';
        this._visual.style.filter =
          'progid:DXImageTransform.Microsoft.BasicImage(opacity=0.4)';
        this._visual.style.zIndex = 99999;
        this.get_element().parentNode.appendChild(this._visual);
        var location =
            Sys.UI.DomElement.getLocation(this.get_element());
        Sys.UI.DomElement.setLocation(this._visual, location.x + 4,
            location.y + 4);

        Sys.Preview.UI.DragDropManager.startDragDrop(this,
            this._visual, null);
    },

    dispose: function()
    {
        if (this._mouseDownHandler)
            $removeHandler(this.get_element(), 'mousedown',
                this._mouseDownHandler);
        this._mouseDownHandler = null;
        Custom.UI.ColorDragSourceBehavior.callBaseMethod(this,
            'dispose');
    }
}

Custom.UI.ColorDragSourceBehavior.registerClass
    ('Custom.UI.ColorDragSourceBehavior', Sys.UI.Behavior,
    Sys.Preview.UI.IDragSource);

///////////////////////////////////////////////////////////////////////
// ColorDropTargetBehavior class

Custom.UI.ColorDropTargetBehavior = function(element)
{
    Custom.UI.ColorDropTargetBehavior.initializeBase(this, [element]);
    this._color = null;
}

Custom.UI.ColorDropTargetBehavior.prototype =
{
    // IDropTarget methods
    get_dropTargetElement: function () {
        return this.get_element();
    },

    canDrop: function (dragMode, dataType, data) {
        return (dataType == 'DragDropColor' && data);
    },

    drop: function (dragMode, dataType, data) {
        if (dataType == 'DragDropColor' && data) {
            // this.get_element().style.backgroundColor = data;
            this.get_element().style.backgroundColor = this._color;

            //document.getElementById("ctl00_ContentPlaceHolder1_ButtonUpdate").click();
            __doPostBack("ctl00_ContentPlaceHolder1_ButtonUpdate", data)

            //  alert('Alert!! data: ' + data);
        }
    },

    onDragEnterTarget: function (dragMode, dataType, data) {
        // Highlight the drop zone by changing its background
        // color to light gray
        if (dataType == 'DragDropColor' && data) {
            this._color = this.get_element().style.backgroundColor;
            this.get_element().style.backgroundColor = '#E0E0E0';
        }
    },

    onDragLeaveTarget: function (dragMode, dataType, data) {
        // Unhighlight the drop zone by restoring its original
        // background color
        if (dataType == 'DragDropColor' && data) {
            this.get_element().style.backgroundColor = this._color;
        }
    },

    onDragInTarget: function (dragMode, dataType, data) { },

    // Other methods
    initialize: function () {
        Custom.UI.ColorDropTargetBehavior.callBaseMethod(this,
            'initialize');
        Sys.Preview.UI.DragDropManager.registerDropTarget(this);
    },

    dispose: function () {
        Sys.Preview.UI.DragDropManager.unregisterDropTarget(this);
        Custom.UI.ColorDropTargetBehavior.callBaseMethod(this,
            'dispose');
    }
}

Custom.UI.ColorDropTargetBehavior.registerClass
    ('Custom.UI.ColorDropTargetBehavior', Sys.UI.Behavior,
    Sys.Preview.UI.IDropTarget);

///////////////////////////////////////////////////////////////////////
// Script registration

Sys.Application.notifyScriptLoaded();