zhywebcore/EC.Web/Extensions/HtmlHelperExtensions.cs

using learun.util;
using Microsoft.AspNetCore.Html;
using Microsoft.AspNetCore.Mvc.Rendering;
using System.Text;

namespace EC.Web
{
	/// <summary>
	/// 版 本 EasyCode EC管理后台
	/// Copyright (c) 2019-present EC管理有限公司
	/// 创建人：tobin
	/// 日 期：2019.09.02
	/// 描 述：对HtmlHelper类进行扩展
	/// </summary>
	public static class HtmlHelperExtensions
	{
		/// <summary>
		/// 往页面中写入js文件
		/// </summary>
		/// <param name="htmlHelper">需要扩展对象</param>
		/// <param name="jsFiles">文件路径</param>
		/// <returns></returns>
		public static HtmlString AppendJsFile(this IHtmlHelper htmlHelper, params string[] jsFiles)
		{
			if (htmlHelper is null)
			{
				throw new System.ArgumentNullException(nameof(htmlHelper));
			}

			string jsFile = "";
			foreach (string file in jsFiles)
			{
				if (jsFile != "")
				{
					jsFile += ",";
				}
				jsFile += file;
			}
			string jsStr = "";
			if (ConfigHelper.GetValue<string>("env") != "dev")
			{
				jsStr = ConfigHelper.GetCache(jsFile);
			}
			if (string.IsNullOrEmpty(jsStr))
			{
				jsStr = JsCssHelper.ReadJSFile(jsFiles);
				ConfigHelper.SetCache(jsFile, jsStr);
			}

			StringBuilder content = new StringBuilder();
			string jsFormat = "<script>{0}</script>";

			content.AppendFormat(jsFormat, jsStr);
			return new HtmlString(content.ToString());
		}

		/// <summary>
		/// 往页面中写入css样式
		/// </summary>
		/// <param name="htmlHelper">需要扩展对象</param>
		/// <param name="cssFiles">文件路径</param>
		/// <returns></returns>
		public static HtmlString AppendCssFile(this IHtmlHelper htmlHelper, params string[] cssFiles)
		{
			if (htmlHelper is null)
			{
				throw new System.ArgumentNullException(nameof(htmlHelper));
			}

			string cssFile = "";
			foreach (string file in cssFiles)
			{
				if (cssFile != "")
				{
					cssFile += ",";
				}
				cssFile += file;
			}
			string cssStr = "";
			if (ConfigHelper.GetValue<string>("env") != "dev")
			{
				cssStr = ConfigHelper.GetCache(cssFile);
			}

			if (string.IsNullOrEmpty(cssStr))
			{
				var url = "";

				cssStr = JsCssHelper.ReadCssFile(cssFiles);
				if (url != "/")
				{
					cssStr = cssStr.Replace("url(", "url(" + url);
				}

				ConfigHelper.SetCache(cssFile, cssStr);
			}
			StringBuilder content = new StringBuilder();
			string cssFormat = "<style>{0}</style>";
			content.AppendFormat(cssFormat, cssStr);
			return new HtmlString(content.ToString());
		}

		public static HtmlString Js(this IHtmlHelper htmlHelper, string strJs)
		{
			if (htmlHelper is null)
			{
				throw new System.ArgumentNullException(nameof(htmlHelper));
			}

			string jsStr = JsCssHelper.CompressJS(strJs);

			StringBuilder content = new StringBuilder();
			string jsFormat = "<script>{0}</script>";

			content.AppendFormat(jsFormat, jsStr);
			return new HtmlString(content.ToString());
		}

		public static HtmlString Css(this IHtmlHelper htmlHelper, string strCss)
		{
			if (htmlHelper is null)
			{
				throw new System.ArgumentNullException(nameof(htmlHelper));
			}

			string cssStr = JsCssHelper.CompressCss(strCss);
			StringBuilder content = new StringBuilder();
			string cssFormat = "<style>{0}</style>";
			content.AppendFormat(cssFormat, cssStr);
			return new HtmlString(content.ToString());
		}

		/// <summary>
		/// 获取虚拟目录
		/// </summary>
		/// <returns></returns>
		public static string GetVirtualPath(this IHtmlHelper htmlHelper)
		{
			if (htmlHelper is null)
			{
				throw new System.ArgumentNullException(nameof(htmlHelper));
			}

			return ConfigHelper.GetConfig().VirtualPath;
		}

		#region 权限模块

		/// <summary>
		/// 设置当前页面地址
		/// </summary>
		/// <param name = "htmlHelper" ></ param >
		/// < returns ></ returns >
		public static HtmlString SetCurrentUrl(this IHtmlHelper htmlHelper)
		{
			if (htmlHelper is null)
			{
				throw new System.ArgumentNullException(nameof(htmlHelper));
			}

			string mouldeCode = ContextHelper.GetItem("mouldeCode") as string;
			return new HtmlString("<script>var lrCurrentMouldeCode='" + mouldeCode + "';var lrModuleButtonList;var lrModuleColumnList;var lrModule;var lrModuleForms;</script>");
		}

		#endregion 权限模块
	}
}