kreta/KretaWeb/Helpers/ColorPickerExtensions.cs

using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using System.Text;
using System.Web.Mvc;
using Kendo.Mvc.UI;
using Kendo.Mvc.UI.Fluent;

namespace Kreta.Web.Helpers
{
    public static class ColorPickerExtensions
    {
        public static ColorPickerBuilder KretaColorPicker(this HtmlHelper helper, string name, bool enabled = true, Dictionary<string, object> htmlAttributes = null)
        {
            var cp = helper.Kendo().ColorPicker()
                .Name(name)
                .Enable(enabled);

            if (htmlAttributes == null)
            {
                htmlAttributes = new Dictionary<string, object>();
            }
            cp.HtmlAttributes(htmlAttributes);

            return cp;
        }

        public static ColorPickerBuilder KretaColorPickerFor<TModel, TValue>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TValue>> expression, Dictionary<string, object> htmlAttributes = null)
        {
            var fieldName = ExpressionHelper.GetExpressionText(expression);
            var fullBindingName = helper.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName(fieldName);
            var metadata = ModelMetadata.FromLambdaExpression(expression, helper.ViewData);
            var value = metadata.Model;

            if (htmlAttributes == null)
                htmlAttributes = new Dictionary<string, object>();

            htmlAttributes.Add("data-labelmsg", metadata.DisplayName);

            var cp = helper.Kendo().ColorPicker()
                .Name(fullBindingName)
                .HtmlAttributes(htmlAttributes);

            if (value != null)
            {
                cp.Value(value.ToString());
            }

            return cp;
        }

        public static MvcHtmlString RenderWithName(this ColorPickerBuilder helper, int labelWidth = 6, int inputWidth = 6, bool allSizeSame = false, string tooltipResource = null)
        {
            string labelMsg = "";
            foreach (var item in helper.ToComponent().HtmlAttributes)
            {
                if (item.Key == "data-labelmsg" && item.Value != null)
                    labelMsg = item.Value.ToString();
            }

            var sb = new StringBuilder();
            if (string.IsNullOrWhiteSpace(tooltipResource))
                AddRenderWithNameBeginingFrame(sb, labelWidth, inputWidth, allSizeSame, helper.ToComponent().Name, labelMsg, string.Empty);
            else
                AddRenderWithNameTooltipBeginingFrame(sb, labelWidth, inputWidth, allSizeSame, helper.ToComponent().Name, labelMsg, string.Empty, tooltipResource);
            sb.Append(helper.ToHtmlString());
            AddRenderWithNameCloseingFrame(sb);
            return new MvcHtmlString(sb.ToString());
        }

        public static MvcHtmlString RenderWithName(this ColorPickerBuilder helper, string label, int labelWidth = 6, int inputWidth = 6, bool allSizeSame = false, string tooltipResource = null)
        {
            var sb = new StringBuilder();
            if (string.IsNullOrWhiteSpace(tooltipResource))
                AddRenderWithNameBeginingFrame(sb, labelWidth, inputWidth, allSizeSame, helper.ToComponent().Name, label, string.Empty);
            else
                AddRenderWithNameTooltipBeginingFrame(sb, labelWidth, inputWidth, allSizeSame, helper.ToComponent().Name, label, string.Empty, tooltipResource);
            sb.Append(helper.ToHtmlString());
            AddRenderWithNameCloseingFrame(sb);

            return new MvcHtmlString(sb.ToString());
        }

        private static void AddRenderWithNameBeginingFrame(StringBuilder sb, int labelWidth, int inputWidth, bool allSizeSame, string controlName, string labelMsg, string customClass)
        {
            sb.AppendFormat("<div class=\"{0} {1} \">", BootsrapHelper.GetSizeClasses(labelWidth, allSizeSame), customClass);
            sb.AppendFormat("<label class=\"windowInputLabel\" for=\"{0}\">{1}</label>", controlName, labelMsg);
            sb.AppendFormat("</div><div class=\"{0} {1}\">", BootsrapHelper.GetSizeClasses(inputWidth, allSizeSame), customClass);
        }

        private static void AddRenderWithNameTooltipBeginingFrame(StringBuilder sb, int labelWidth, int inputWidth, bool allSizeSame, string controlName, string labelMsg, string customClass, string tooltipResource)
        {
            sb.AppendFormat("<div class=\"{0} {1} kretaLabelTooltip \">", BootsrapHelper.GetSizeClasses(labelWidth, allSizeSame), customClass);
            sb.AppendFormat("<label class=\"windowInputLabel\" for=\"{0}\">{1}", controlName, labelMsg);
            sb.Append("&nbsp;<img class='kretaLabelTooltipImg' />");
            sb.AppendFormat("<span class=\"kretaLabelTooltipText\">{0}</span>", tooltipResource);
            sb.Append("</label>");
            sb.AppendFormat("</div><div class=\"{0} {1}\">", BootsrapHelper.GetSizeClasses(inputWidth, allSizeSame), customClass);
        }

        private static void AddRenderWithNameCloseingFrame(StringBuilder sb)
        {
            sb.Append("</div>");
        }
    }
}