feat(legacy): add shell-independent module page compatibility

插件库/Lskj.Model/ModulePageHost.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using DevExpress.XtraTab;
+
+namespace Lskj.Model
+{
+    /// <summary>
+    /// Provides the top-level module page lifecycle without coupling module
+    /// code to a particular visual tab control. The WPF shell supplies an
+    /// implementation backed by DXTabItem instances; the classic WinForms
+    /// shell leaves this interface unset and ERPInfo falls back to its real
+    /// XtraTabControl/PageControl.
+    /// </summary>
+    public interface IModulePageHost
+    {
+        event EventHandler<ModulePageEventArgs> PageAdded;
+        event EventHandler<ModulePageEventArgs> PageRemoved;
+        event EventHandler<ModulePageEventArgs> PageSelected;
+
+        XtraTabPage SelectedPage { get; }
+        IEnumerable<XtraTabPage> Pages { get; }
+
+        void AddPage(XtraTabPage page);
+        bool RemovePage(XtraTabPage page);
+        bool SelectPage(XtraTabPage page);
+        bool ContainsPage(XtraTabPage page);
+    }
+
+    public sealed class ModulePageEventArgs : EventArgs
+    {
+        public ModulePageEventArgs(XtraTabPage page)
+        {
+            Page = page;
+        }
+
+        public XtraTabPage Page { get; private set; }
+    }
+}