Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Web/UI/IStyleSheet.cs

@@ -0,0 +1,34 @@
+//------------------------------------------------------------------------------
+// <copyright file="IStyleSheet.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI {
+
+    using System;
+    using System.Collections;
+    using System.Web.UI.WebControls;
+
+    /// <devdoc>
+    /// IStyleSheet represents the core functionality of a style sheet, i.e.
+    /// a collection of named styles.
+    /// </devdoc>
+    public interface IStyleSheet {
+
+
+        /// <devdoc>
+        /// Creates a style rule for the specified selector.  Multiple rules are allowed of the
+        /// same selector
+        /// </devdoc>
+        void CreateStyleRule(Style style, IUrlResolutionService urlResolver, string selector);
+
+
+        /// <devdoc>
+        /// Adds a new style rule to the style sheet and associates it with an
+        /// autogenerated name. The style is rendered using the specified
+        /// URL resolver.
+        /// </devdoc>
+        void RegisterStyle(Style style, IUrlResolutionService urlResolver);
+    }
+}