reactos/dll/cpl/desk/desk.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS Display Control Panel
   5  * FILE:            lib/cpl/desk/desk.c
   6  * PURPOSE:         ReactOS Display Control Panel
   7  *
   8  * PROGRAMMERS:     Trevor McCort (lycan359@gmail.com)
   9  */
  10
  11 #include "desk.h"
  12 #include "preview.h"
  13
  14 #define NUM_APPLETS     (1)
  15
  16 static LONG APIENTRY DisplayApplet(HWND hwnd, UINT uMsg, LPARAM wParam, LPARAM lParam);
  17
  18 INT_PTR CALLBACK BackgroundPageProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
  19 INT_PTR CALLBACK ScreenSaverPageProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
  20 INT_PTR CALLBACK AppearancePageProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
  21 INT_PTR CALLBACK SettingsPageProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
  22 UINT CALLBACK SettingsPageCallbackProc(HWND hwnd, UINT uMsg, LPPROPSHEETPAGE ppsp);
  23
  24 HINSTANCE hApplet = 0;
  25
  26 /* Applets */
  27 APPLET Applets[NUM_APPLETS] =
  28 {
  29     {
  30         IDC_DESK_ICON,
  31         IDS_CPLNAME,
  32         IDS_CPLDESCRIPTION,
  33         DisplayApplet
  34     }
  35 };
  36
  37 HMENU
  38 LoadPopupMenu(IN HINSTANCE hInstance,
  39               IN LPCTSTR lpMenuName)
  40 {
  41     HMENU hMenu, hSubMenu = NULL;
  42
  43     hMenu = LoadMenu(hInstance,
  44                      lpMenuName);
  45
  46     if (hMenu != NULL)
  47     {
  48         hSubMenu = GetSubMenu(hMenu,
  49                               0);
  50         if (hSubMenu != NULL &&
  51             !RemoveMenu(hMenu,
  52                         0,
  53                         MF_BYPOSITION))
  54         {
  55             hSubMenu = NULL;
  56         }
  57
  58         DestroyMenu(hMenu);
  59     }
  60
  61     return hSubMenu;
  62 }
  63
  64 static BOOL CALLBACK
  65 PropSheetAddPage(HPROPSHEETPAGE hpage, LPARAM lParam)
  66 {
  67     PROPSHEETHEADER *ppsh = (PROPSHEETHEADER *)lParam;
  68     if (ppsh != NULL && ppsh->nPages < MAX_DESK_PAGES)
  69     {
  70         ppsh->phpage[ppsh->nPages++] = hpage;
  71         return TRUE;
  72     }
  73
  74     return FALSE;
  75 }
  76
  77 static BOOL
  78 InitPropSheetPage(PROPSHEETHEADER *ppsh, WORD idDlg, DLGPROC DlgProc, LPFNPSPCALLBACK pfnCallback)
  79 {
  80     HPROPSHEETPAGE hPage;
  81     PROPSHEETPAGE psp;
  82
  83     if (ppsh->nPages < MAX_DESK_PAGES)
  84     {
  85         ZeroMemory(&psp, sizeof(psp));
  86         psp.dwSize = sizeof(psp);
  87         psp.dwFlags = PSP_DEFAULT;
  88         if (pfnCallback != NULL)
  89             psp.dwFlags |= PSP_USECALLBACK;
  90         psp.hInstance = hApplet;
  91         psp.pszTemplate = MAKEINTRESOURCE(idDlg);
  92         psp.pfnDlgProc = DlgProc;
  93         psp.pfnCallback = pfnCallback;
  94
  95         hPage = CreatePropertySheetPage(&psp);
  96         if (hPage != NULL)
  97         {
  98             return PropSheetAddPage(hPage, (LPARAM)ppsh);
  99         }
 100     }
 101
 102     return FALSE;
 103 }
 104
 105 static const struct
 106 {
 107     WORD idDlg;
 108     DLGPROC DlgProc;
 109     LPFNPSPCALLBACK Callback;
 110 } PropPages[] =
 111 {
 112     { IDD_BACKGROUND, BackgroundPageProc, NULL },
 113     { IDD_SCREENSAVER, ScreenSaverPageProc, NULL },
 114     { IDD_APPEARANCE, AppearancePageProc, NULL },
 115     { IDD_SETTINGS, SettingsPageProc, SettingsPageCallbackProc },
 116 };
 117
 118 /* Display Applet */
 119 static LONG APIENTRY
 120 DisplayApplet(HWND hwnd, UINT uMsg, LPARAM wParam, LPARAM lParam)
 121 {
 122     HPROPSHEETPAGE hpsp[MAX_DESK_PAGES];
 123     PROPSHEETHEADER psh;
 124     HPSXA hpsxa;
 125     TCHAR Caption[1024];
 126     LONG ret;
 127     UINT i;
 128
 129     UNREFERENCED_PARAMETER(lParam);
 130     UNREFERENCED_PARAMETER(wParam);
 131     UNREFERENCED_PARAMETER(uMsg);
 132     UNREFERENCED_PARAMETER(hwnd);
 133
 134     LoadString(hApplet, IDS_CPLNAME, Caption, sizeof(Caption) / sizeof(TCHAR));
 135
 136     ZeroMemory(&psh, sizeof(PROPSHEETHEADER));
 137     psh.dwSize = sizeof(PROPSHEETHEADER);
 138     psh.dwFlags = PSH_USECALLBACK | PSH_PROPTITLE;
 139     psh.hwndParent = NULL;
 140     psh.hInstance = hApplet;
 141     psh.hIcon = LoadIcon(hApplet, MAKEINTRESOURCE(IDC_DESK_ICON));
 142     psh.pszCaption = Caption;
 143     psh.nPages = 0;
 144     psh.nStartPage = 0;
 145     psh.phpage = hpsp;
 146
 147     /* Allow shell extensions to replace the background page */
 148     hpsxa = SHCreatePropSheetExtArray(HKEY_LOCAL_MACHINE, REGSTR_PATH_CONTROLSFOLDER TEXT("\\Desk"), MAX_DESK_PAGES - psh.nPages);
 149
 150     for (i = 0; i != sizeof(PropPages) / sizeof(PropPages[0]); i++)
 151     {
 152         /* Override the background page if requested by a shell extension */
 153         if (PropPages[i].idDlg == IDD_BACKGROUND && hpsxa != NULL &&
 154             SHReplaceFromPropSheetExtArray(hpsxa, CPLPAGE_DISPLAY_BACKGROUND, PropSheetAddPage, (LPARAM)&psh) != 0)
 155         {
 156             /* The shell extension added one or more pages to replace the background page.
 157                Don't create the built-in page anymore! */
 158             continue;
 159         }
 160
 161         InitPropSheetPage(&psh, PropPages[i].idDlg, PropPages[i].DlgProc, PropPages[i].Callback);
 162     }
 163
 164     /* NOTE: Don;t call SHAddFromPropSheetExtArray here because this applet only allows
 165              replacing the background page but not extending the applet by more pages */
 166
 167     ret = (LONG)(PropertySheet(&psh) != -1);
 168
 169     if (hpsxa != NULL)
 170         SHDestroyPropSheetExtArray(hpsxa);
 171
 172     return ret;
 173 }
 174
 175
 176 /* Control Panel Callback */
 177 LONG CALLBACK
 178 CPlApplet(HWND hwndCPl, UINT uMsg, LPARAM lParam1, LPARAM lParam2)
 179 {
 180     int i = (int)lParam1;
 181
 182     switch (uMsg)
 183     {
 184         case CPL_INIT:
 185             return TRUE;
 186
 187         case CPL_GETCOUNT:
 188             return NUM_APPLETS;
 189
 190         case CPL_INQUIRE:
 191             {
 192                 CPLINFO *CPlInfo = (CPLINFO*)lParam2;
 193                 CPlInfo->lData = 0;
 194                 CPlInfo->idIcon = Applets[i].idIcon;
 195                 CPlInfo->idName = Applets[i].idName;
 196                 CPlInfo->idInfo = Applets[i].idDescription;
 197             }
 198             break;
 199
 200         case CPL_DBLCLK:
 201             Applets[i].AppletProc(hwndCPl, uMsg, lParam1, lParam2);
 202             break;
 203     }
 204
 205     return FALSE;
 206 }
 207
 208
 209 BOOL WINAPI
 210 DllMain(HINSTANCE hInstDLL, DWORD dwReason, LPVOID lpvReserved)
 211 {
 212     UNREFERENCED_PARAMETER(lpvReserved);
 213
 214     switch (dwReason)
 215     {
 216         case DLL_PROCESS_ATTACH:
 217             CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
 218             RegisterPreviewControl(hInstDLL);
 219 //        case DLL_THREAD_ATTACH:
 220             hApplet = hInstDLL;
 221             break;
 222
 223         case DLL_PROCESS_DETACH:
 224             UnregisterPreviewControl(hInstDLL);
 225             CoUninitialize();
 226             break;
 227     }
 228
 229     return TRUE;
 230 }