Add AbpIdNameTagHelper

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpIdNameTagHelper.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Rendering;
+using Microsoft.AspNetCore.Mvc.ViewFeatures;
+using Microsoft.AspNetCore.Razor.TagHelpers;
+using Microsoft.Extensions.Options;
+
+namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Form
+{
+    [HtmlTargetElement(Attributes = "abp-id-name")]
+    public class AbpIdNameTagHelper : AbpTagHelper
+    {
+        /// <summary>
+        /// Make sure this TagHelper is executed first.
+        /// </summary>
+        public override int Order => -1000 - 1;
+
+        [HtmlAttributeName("abp-id-name")]
+        public ModelExpression IdNameFor { get; set; }
+
+        private readonly ModelExpressionProvider _modelExpressionProvider;
+        private readonly MvcViewOptions _mvcViewOptions;
+
+        public AbpIdNameTagHelper(ModelExpressionProvider modelExpressionProvider, IOptions<MvcViewOptions> mvcViewOptions)
+        {
+            _modelExpressionProvider = modelExpressionProvider;
+            _mvcViewOptions = mvcViewOptions.Value;
+        }
+
+        public override Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
+        {
+            if (IdNameFor != null)
+            {
+                if (!context.AllAttributes.Any(x => x.Name.Equals("id", StringComparison.OrdinalIgnoreCase)))
+                {
+                    var id = TagBuilder.CreateSanitizedId(IdNameFor.Name, _mvcViewOptions.HtmlHelperOptions.IdAttributeDotReplacement);
+                    output.Attributes.Add("id", id);
+                }
+
+                if (!context.AllAttributes.Any(x => x.Name.Equals("name", StringComparison.OrdinalIgnoreCase)))
+                {
+                    output.Attributes.Add("name", IdNameFor.Name);
+                }
+            }
+
+            return Task.CompletedTask;
+        }
+    }
+}