[explorer_new]

- Commit a great experiment for explorer. Our explorer will try to load a library called rshell.dll which will provide an alternative implementation of some functions that are built in in windows shell. These functions are CStartMenu_Constructor, SHCreateDesktop, SHDesktopMessageLoop, WinList_Init and ShellDDEInit. Providing our own implementation for these functions will allow us to make it run in all windows versions up to windows 8 and also test the implementation of our own components that will be placed temporarily in rshell.dll while they are developed and debugged in windows.

svn path=/branches/shell-experiments/; revision=61971

base/shell/explorer-new/CMakeLists.txt

@@ -1,10 +1,13 @@
 
+PROJECT(SHELL)
+
 add_definitions(-DWIN32)
 
 list(APPEND SOURCE
     desktop.c
     dragdrop.c
     explorer.c
+    rshell.c
     settings.c
     startmnu.c
     startup.c

base/shell/explorer-new/precomp.h

@@ -166,6 +166,15 @@ GetExplorerRegValueSet(IN HKEY hKey,
                        IN LPCTSTR lpSubKey,
                        IN LPCTSTR lpValue);
 
+/*
+ *  rshell.c
+ */
+
+HRESULT
+CStartMenu_Constructor(
+    REFIID riid,
+    void **ppv);
+
 /*
  * traywnd.c
  */

base/shell/explorer-new/rshell.c

@@ -0,0 +1,162 @@
+/*
+ * ReactOS Explorer
+ *
+ * Copyright 2014 Giannis Adamopoulos
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "precomp.h"
+
+typedef HRESULT(*PSTARTMENU_CONSTRUCTOR)(REFIID riid, void **ppv);
+
+HRESULT
+CStartMenu_Constructor(
+    REFIID riid,
+    void **ppv)
+{
+    HINSTANCE hRShell = LoadLibraryW(L"rshell.dll");
+
+    if (hRShell)
+    {
+        PSTARTMENU_CONSTRUCTOR func = (PSTARTMENU_CONSTRUCTOR)GetProcAddress(hRShell, "CStartMenu_Constructor");
+        if(func)
+        {
+            return func(riid, ppv);
+        }
+    }
+
+    return CoCreateInstance(&CLSID_StartMenu,
+                            NULL,
+                            CLSCTX_INPROC_SERVER,
+                            riid,
+                            ppv);   
+}
+
+typedef HANDLE(WINAPI *PSHCREATEDESKTOP)(IShellDesktopTray *ShellDesk);
+
+HANDLE WINAPI SHCreateDesktop(IShellDesktopTray *ShellDesk)
+{
+    HINSTANCE hRShell = LoadLibraryW(L"rshell.dll");
+
+    if (hRShell)
+    {
+        PSHCREATEDESKTOP func = (PSHCREATEDESKTOP)GetProcAddress(hRShell, "SHCreateDesktop");
+        if (func)
+        {
+            return func(ShellDesk);
+        }
+    }
+
+    hRShell = LoadLibraryW(L"shell32.dll");
+
+    if (hRShell)
+    {
+        PSHCREATEDESKTOP func = (PSHCREATEDESKTOP)GetProcAddress(hRShell, "SHCreateDesktop");
+        if (func)
+        {
+            return func(ShellDesk);
+        }
+    }
+
+    return 0;
+}
+
+typedef BOOL(WINAPI *PSHDESKTOPMESSAGELOOP)(HANDLE hDesktop);
+
+BOOL WINAPI SHDesktopMessageLoop(HANDLE hDesktop)
+{
+    HINSTANCE hRShell = LoadLibraryW(L"rshell.dll");
+
+    if (hRShell)
+    {
+        PSHDESKTOPMESSAGELOOP func = (PSHDESKTOPMESSAGELOOP)GetProcAddress(hRShell, "SHDesktopMessageLoop");
+        if (func)
+        {
+            return func(hDesktop);
+        }
+    }
+
+    hRShell = LoadLibraryW(L"shell32.dll");
+
+    if (hRShell)
+    {
+        PSHDESKTOPMESSAGELOOP func = (PSHDESKTOPMESSAGELOOP)GetProcAddress(hRShell, "SHDesktopMessageLoop");
+        if (func)
+        {
+            return func(hDesktop);
+        }
+    }
+
+    return FALSE;
+}
+
+typedef DWORD(WINAPI* PWINLIST_INIT)(void);
+
+DWORD WINAPI WinList_Init(void)
+{
+    HINSTANCE hRShell = LoadLibraryW(L"rshell.dll");
+
+    if (hRShell)
+    {
+        PWINLIST_INIT func = (PWINLIST_INIT)GetProcAddress(hRShell, "WinList_Init");
+        if (func)
+        {
+            return func();
+        }
+    }
+
+    hRShell = LoadLibraryW(L"shdocvw.dll");
+
+    if (hRShell)
+    {
+        PWINLIST_INIT func = (PWINLIST_INIT)GetProcAddress(hRShell, "WinList_Init");
+        if (func)
+        {
+            return func();
+        }
+    }
+
+    return 0;
+}
+
+typedef void (WINAPI *PSHELLDDEINIT)(BOOL bInit);
+
+void WINAPI ShellDDEInit(BOOL bInit)
+{
+    HINSTANCE hRShell = LoadLibraryW(L"rshell.dll");
+
+    if (hRShell)
+    {
+        PSHELLDDEINIT func = (PSHELLDDEINIT)GetProcAddress(hRShell, "ShellDDEInit");
+        if (func)
+        {
+            func(bInit);
+            return;
+        }
+    }
+
+    hRShell = LoadLibraryW(L"shell32.dll");
+
+    if (hRShell)
+    {
+        PSHELLDDEINIT func = (PSHELLDDEINIT)GetProcAddress(hRShell, "ShellDDEInit");
+        if (func)
+        {
+            func(bInit);
+            return;
+        }
+    }
+}

base/shell/explorer-new/startmnu.c

@@ -848,11 +848,15 @@ CreateStartMenu(IN ITrayWindow *Tray,
     if (pSms == NULL)
         return NULL;
 
+#if 0
     hr = CoCreateInstance(&CLSID_StartMenu,
                           NULL,
                           CLSCTX_INPROC_SERVER,
                           &IID_IMenuPopup,
                           (PVOID *)&pMp);
+#else
+    hr = CStartMenu_Constructor(&IID_IMenuPopup,(PVOID *)&pMp);
+#endif
     if (FAILED(hr))
     {
         DbgPrint("CoCreateInstance failed: %x\n", hr);