LIOT/Framework/Bowin.Web.Controls.Mvc/Component.Draggable/DraggableList.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.Mvc;
using System.Drawing;
using Bowin.Common.Utility;

namespace Bowin.Web.Controls.Mvc
{
    public class DraggableList : BaseFormControl
    {
        public List<DraggableItem> ItemList { get; set; }
        public string ItemSourceUrl { get; set; }
        public int ItemHeight { get; set; }
        public string TitleField { get; set; }
        public string IconField { get; set; }
        public string ValueField { get; set; }
        public int? Width { get; set; }
        public int? Height { get; set; }
        public Color ForeColor { get; set; }
        public DraggableList()
        {
            ItemList = new List<DraggableItem>();
        }

        protected IDictionary<string, string> GetPropertyList()
        {
            var dictPropertyList = new Dictionary<string, string>();

            if (!string.IsNullOrEmpty(this.ID))
            {
                dictPropertyList.Add("id", this.ID);
            }

            if (!string.IsNullOrEmpty(this.Name))
            {
                dictPropertyList.Add("name", this.Name);
            }
            dictPropertyList.Add("class", "easyui-draggableList");

            string style = "";
            if (this.Width.HasValue)
            {
                style += "width: " + this.Width.Value.ToString() + "px;";
            }
            else
            {
                style += "width: 100%;";
            }
            if (this.Height.HasValue)
            {
                style += "height: " + this.Height.Value.ToString() + "px;";
            }
            else
            {
                style += "height: 100%;";
            }
            style += "overflow-x: scroll;";

            dictPropertyList.Add("style", style);
            #region data-options

            var dictOptions = new Dictionary<string, string>();

            if (this.ForeColor != null)
            {
                dictOptions.Add("foreColor", "'#" + this.ForeColor.ToRGBString() + "'");
            }
            if (!string.IsNullOrEmpty(this.ItemSourceUrl))
            {
                dictOptions.Add("url", "'" + this.ItemSourceUrl + "'");

                if (string.IsNullOrEmpty(this.TitleField))
                {
                    throw new Exception("指定了ItemSourceUrl就一定要设置TitleField");
                }
            }

            if (!string.IsNullOrEmpty(this.TitleField))
            {
                dictOptions.Add("titleField", "'" + this.TitleField + "'");
            }
            if (!string.IsNullOrEmpty(this.ValueField))
            {
                dictOptions.Add("valueField", "'" + this.ValueField + "'");
            }
            if (!string.IsNullOrEmpty(this.IconField))
            {
                dictOptions.Add("iconField", "'" + this.IconField + "'");
            }

            dictOptions.Add("itemHeight", this.ItemHeight.ToString());

            dictPropertyList.Add("data-options", string.Join(",", dictOptions.Select(x => string.Format("{0}:{1}", x.Key, x.Value))));


            #endregion data-options

            return dictPropertyList;
        }

        public override string Render()
        {
            TagBuilder tabBuilder = new TagBuilder("div");
            tabBuilder.MergeAttributes<string, string>(GetPropertyList());
            if (this.Attributes != null)
            {
                tabBuilder.MergeAttributes<string, string>(this.Attributes);
            }

            return tabBuilder.ToString(TagRenderMode.Normal);
        }

        public static DraggableList CreateControl(DraggableListControlOptions dragableListOptions, IDictionary<string, string> attributes = null)
        {
            DraggableList dragableList = new DraggableList();
            dragableList.ID = dragableListOptions.ID;
            if (dragableListOptions.ItemList != null)
            {
                dragableList.ItemList.AddRange(dragableListOptions.ItemList);
            }
            dragableList.Name = dragableListOptions.Name;
            dragableList.Attributes = attributes;
            dragableList.ItemSourceUrl = dragableListOptions.ItemSourceUrl;
            dragableList.ItemList = dragableListOptions.ItemList;
            dragableList.ItemHeight = dragableListOptions.ItemHeight;
            dragableList.TitleField = dragableListOptions.TitleField;
            dragableList.ValueField = dragableListOptions.ValueField;
            dragableList.IconField = dragableListOptions.IconField;
            dragableList.Width = dragableListOptions.Width;
            dragableList.Height = dragableListOptions.Height;
            dragableList.ForeColor = dragableListOptions.ForeColor;

            return dragableList;
        }
    }
}