base/shell/explorer/explorer.cpp

   1 /*
   2  * ReactOS Explorer
   3  *
   4  * Copyright 2006 - 2007 Thomas Weidenmueller <w3seek@reactos.org>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21 #include "precomp.h"
  22 #include <browseui_undoc.h>
  23
  24 HINSTANCE hExplorerInstance;
  25 HANDLE hProcessHeap;
  26 HKEY hkExplorer = NULL;
  27
  28 class CExplorerModule : public CComModule
  29 {
  30 public:
  31 };
  32
  33 BEGIN_OBJECT_MAP(ObjectMap)
  34 END_OBJECT_MAP()
  35
  36 CExplorerModule                             gModule;
  37 CAtlWinModule                               gWinModule;
  38
  39 static VOID InitializeAtlModule(HINSTANCE hInstance, BOOL bInitialize)
  40 {
  41     if (bInitialize)
  42     {
  43         gModule.Init(ObjectMap, hInstance, NULL);
  44     }
  45     else
  46     {
  47         gModule.Term();
  48     }
  49 }
  50
  51 #if !WIN7_DEBUG_MODE
  52 static BOOL
  53 SetShellReadyEvent(IN LPCWSTR lpEventName)
  54 {
  55     HANDLE hEvent;
  56
  57     hEvent = OpenEventW(EVENT_MODIFY_STATE, FALSE, lpEventName);
  58     if (hEvent != NULL)
  59     {
  60         SetEvent(hEvent);
  61
  62         CloseHandle(hEvent);
  63         return TRUE;
  64     }
  65
  66     return FALSE;
  67 }
  68
  69 static VOID
  70 HideMinimizedWindows(IN BOOL bHide)
  71 {
  72     MINIMIZEDMETRICS mm;
  73
  74     mm.cbSize = sizeof(mm);
  75     if (!SystemParametersInfoW(SPI_GETMINIMIZEDMETRICS, sizeof(mm), &mm, 0))
  76     {
  77         ERR("SystemParametersInfoW failed with %lu\n", GetLastError());
  78         return;
  79     }
  80     if (bHide)
  81         mm.iArrange |= ARW_HIDE;
  82     else
  83         mm.iArrange &= ~ARW_HIDE;
  84     if (!SystemParametersInfoW(SPI_SETMINIMIZEDMETRICS, sizeof(mm), &mm, 0))
  85         ERR("SystemParametersInfoW failed with %lu\n", GetLastError());
  86 }
  87 #endif
  88
  89 #if !WIN7_COMPAT_MODE
  90 static INT
  91 StartWithCommandLine(IN HINSTANCE hInstance)
  92 {
  93     BOOL b = FALSE;
  94     EXPLORER_CMDLINE_PARSE_RESULTS parseResults = { 0 };
  95
  96     if (SHExplorerParseCmdLine(&parseResults))
  97         b = SHCreateFromDesktop(&parseResults);
  98
  99     if (parseResults.strPath)
 100         SHFree(parseResults.strPath);
 101
 102     if (parseResults.pidlPath)
 103         ILFree(parseResults.pidlPath);
 104
 105     if (parseResults.pidlRoot)
 106         ILFree(parseResults.pidlRoot);
 107
 108     return b;
 109 }
 110 #endif
 111
 112 static INT
 113 StartWithDesktop(IN HINSTANCE hInstance)
 114 {
 115     InitializeAtlModule(hInstance, TRUE);
 116
 117     if (RegOpenKeyW(HKEY_CURRENT_USER,
 118         L"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer",
 119         &hkExplorer) != ERROR_SUCCESS)
 120     {
 121         WCHAR Message[256];
 122         LoadStringW(hInstance, IDS_STARTUP_ERROR, Message, _countof(Message));
 123         MessageBox(NULL, Message, NULL, MB_ICONERROR);
 124         return 1;
 125     }
 126
 127     hExplorerInstance = hInstance;
 128     hProcessHeap = GetProcessHeap();
 129
 130     g_TaskbarSettings.Load();
 131
 132     InitCommonControls();
 133     OleInitialize(NULL);
 134
 135 #if !WIN7_DEBUG_MODE
 136     ProcessStartupItems();
 137 #endif
 138
 139 #if !WIN7_COMPAT_MODE
 140     /* Initialize shell dde support */
 141     _ShellDDEInit(TRUE);
 142 #endif
 143
 144     /* Initialize shell icons */
 145     FileIconInit(TRUE);
 146
 147     /* Initialize CLSID_ShellWindows class */
 148     _WinList_Init();
 149
 150     CComPtr<ITrayWindow> Tray;
 151     CreateTrayWindow(&Tray);
 152
 153 #if !WIN7_DEBUG_MODE
 154     /* This not only hides the minimized window captions in the bottom
 155     left screen corner, but is also needed in order to receive
 156     HSHELL_* notification messages (which are required for taskbar
 157     buttons to work right) */
 158     HideMinimizedWindows(TRUE);
 159
 160     HANDLE hShellDesktop = NULL;
 161     if (Tray != NULL)
 162         hShellDesktop = DesktopCreateWindow(Tray);
 163
 164     /* WinXP: Notify msgina to hide the welcome screen */
 165     if (!SetShellReadyEvent(L"msgina: ShellReadyEvent"))
 166         SetShellReadyEvent(L"Global\\msgina: ShellReadyEvent");
 167 #endif
 168
 169     if (Tray != NULL)
 170     {
 171         TrayMessageLoop(Tray);
 172 #if !WIN7_DEBUG_MODE
 173         HideMinimizedWindows(FALSE);
 174 #endif
 175     }
 176
 177 #if !WIN7_DEBUG_MODE
 178     if (hShellDesktop != NULL)
 179         DesktopDestroyShellWindow(hShellDesktop);
 180 #endif
 181
 182     OleUninitialize();
 183
 184     RegCloseKey(hkExplorer);
 185     hkExplorer = NULL;
 186
 187     InitializeAtlModule(hInstance, FALSE);
 188
 189     return 0;
 190 }
 191
 192 INT WINAPI
 193 _tWinMain(IN HINSTANCE hInstance,
 194           IN HINSTANCE hPrevInstance,
 195           IN LPTSTR lpCmdLine,
 196           IN INT nCmdShow)
 197 {
 198     /*
 199     * Set our shutdown parameters: we want to shutdown the very last,
 200     * but before any TaskMgr instance (which has a shutdown level of 1).
 201     */
 202     SetProcessShutdownParameters(2, 0);
 203
 204     InitRSHELL();
 205
 206 #if !WIN7_COMPAT_MODE
 207     BOOL CreateShellDesktop = FALSE;
 208
 209     TRACE("Explorer starting... Commandline: %S\n", lpCmdLine);
 210
 211     if (GetShellWindow() == NULL)
 212         CreateShellDesktop = TRUE;
 213
 214     if (!CreateShellDesktop)
 215     {
 216         return StartWithCommandLine(hInstance);
 217     }
 218 #endif
 219
 220     return StartWithDesktop(hInstance);
 221 }