From 5eb0077221d15e9a551921158afd177369a738ea Mon Sep 17 00:00:00 2001
From: SugarChes <103551815+SugarChes@users.noreply.github.com>
Date: Tue, 1 Sep 2026 15:43:24 +0800
Subject: [PATCH] fix(legacy): defer WinForms module showing for WPF host

---
 插件库/Lskj.Main/Model/Manager.cs | 105 ++++++++++++++++++++++++++++--
 1 file changed, 100 insertions(+), 5 deletions(-)

diff --git a/插件库/Lskj.Main/Model/Manager.cs b/插件库/Lskj.Main/Model/Manager.cs
index 9733673..bab4e66 100644
--- a/插件库/Lskj.Main/Model/Manager.cs
+++ b/插件库/Lskj.Main/Model/Manager.cs
@@ -40,6 +40,18 @@ namespace Lskj.Main.Model
     /// </summary>
     public sealed class Manager
     {
+        /// <summary>
+        /// Controls when a managed WinForms module is shown.  The classic
+        /// shell keeps the original immediate behavior; the WPF compatibility
+        /// host can create the page first, attach it to WindowsFormsHost, and
+        /// show the form after the native host is ready.
+        /// </summary>
+        public enum ModuleOpenMode
+        {
+            Immediate,
+            DeferredForWpf
+        }
+
         /// <summary>
         /// 主程序
         /// </summary>
@@ -287,6 +299,29 @@ namespace Lskj.Main.Model
         /// <param name="
         /// Params">The URL parameters.</param>
         public static void OpenModule(string menuId, string menuName, string dllName, string modelFlag, string urlParams)
+        {
+            OpenModule(
+                menuId,
+                menuName,
+                dllName,
+                modelFlag,
+                urlParams,
+                ModuleOpenMode.Immediate);
+        }
+
+        /// <summary>
+        /// Opens a managed WinForms module with an explicit show policy.
+        /// DeferredForWpf creates and registers the native page without
+        /// running Form.Show; the WPF compatibility layer must later call
+        /// ShowDeferredModule after attaching the page to its host.
+        /// </summary>
+        public static void OpenModule(
+            string menuId,
+            string menuName,
+            string dllName,
+            string modelFlag,
+            string urlParams,
+            ModuleOpenMode openMode)
         {
             string openingModuleKey = null;
             bool ownsOpeningGate = false;
@@ -440,7 +475,7 @@ namespace Lskj.Main.Model
                     else
                     {
                         // 打开module程序                    
-                        AddModuleToTab(module, args);
+                        AddModuleToTab(module, args, openMode);
                     }
                 }
             }
@@ -459,6 +494,42 @@ namespace Lskj.Main.Model
 
         }
 
+        /// <summary>
+        /// Shows a module that was opened with DeferredForWpf.  The page and
+        /// form must already have been registered by AddModuleToTab; this
+        /// method only owns the activation step and then selects the page.
+        /// </summary>
+        public static bool ShowDeferredModule(string moduleId)
+        {
+            if (string.IsNullOrWhiteSpace(moduleId))
+                return false;
+
+            DllModule module;
+            if (!ModuleForms.TryGetValue(moduleId, out module) || module == null)
+                return false;
+
+            Form form = module.ModuleForm as Form;
+            if (form == null || form.IsDisposed)
+                return false;
+
+            if (!form.Visible)
+                form.Show();
+
+            if (form.IsDisposed)
+                return false;
+
+            XtraTabPage page = ERPInfo.Instance.ModulePages.FirstOrDefault(
+                item => item != null &&
+                    string.Equals(
+                        Convert.ToString(item.Tag),
+                        moduleId,
+                        StringComparison.OrdinalIgnoreCase));
+            if (page != null)
+                ERPInfo.Instance.SelectModulePage(page);
+
+            return true;
+        }
+
         private static string BuildBsMenuUrl(string dllName, string dllCoid)
         {
             return string.Format(
@@ -518,6 +589,14 @@ namespace Lskj.Main.Model
         /// <param name="module">The module.</param>
         /// <param name="args">The arguments.</param>
         public static void AddModuleToTab(DllModule module, string[] args)
+        {
+            AddModuleToTab(module, args, ModuleOpenMode.Immediate);
+        }
+
+        private static void AddModuleToTab(
+            DllModule module,
+            string[] args,
+            ModuleOpenMode openMode)
         {
             string guid = null;
             XtraTabPage tp = null;
@@ -641,7 +720,11 @@ namespace Lskj.Main.Model
                 form.TopLevel = isQuickLoad;
                 //form.Location = new Point(0, 0);
                 form.Dock = DockStyle.Fill;//客户需要缩放            
-                form.AutoSize = true;
+                // A WPF WindowsFormsHost supplies the size.  Letting the
+                // native Form participate in content-driven AutoSize causes
+                // a measure/reparent cycle to collapse split containers while
+                // the host is still being attached.
+                form.AutoSize = openMode != ModuleOpenMode.DeferredForWpf;
                 //form.Width = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Width;
                 //form.Height = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Height - MinusTheHeight;
                 form.FormBorderStyle = FormBorderStyle.None;
@@ -666,7 +749,10 @@ namespace Lskj.Main.Model
                 //module.Tag = "1";
                 module.Tag = guid;
                 module.ModuleForm = form;
-                form.Show();
+                if (openMode != ModuleOpenMode.DeferredForWpf)
+                {
+                    form.Show();
+                }
                 if (args != null && !string.IsNullOrEmpty(args[4] + ""))
                 {
                     //2026-08-08 pz说把SearchCondFormModuleCode判断去掉，不要这个功能
@@ -689,8 +775,17 @@ namespace Lskj.Main.Model
                 }
 
                 ERPInfo.Instance.AddModulePage(tp);
-                ERPInfo.Instance.SelectModulePage(tp);
-                ModuleForms.Add(guid, module);
+                if (openMode == ModuleOpenMode.DeferredForWpf)
+                {
+                    // Register before returning so a WPF dispatcher callback
+                    // can activate the form after the Host has been attached.
+                    ModuleForms.Add(guid, module);
+                }
+                else
+                {
+                    ERPInfo.Instance.SelectModulePage(tp);
+                    ModuleForms.Add(guid, module);
+                }
 
                 //LastModuleForm.Add(module);
                 //Lskj.Main.Model.AutoSizeChange.ControllInitializeSize(form);//调整控件大小