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:            dll/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
  13 #define NUM_APPLETS     (1)
  14
  15 static LONG APIENTRY DisplayApplet(HWND hwnd, UINT uMsg, LPARAM wParam, LPARAM lParam);
  16
  17 INT_PTR CALLBACK BackgroundPageProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
  18 INT_PTR CALLBACK ScreenSaverPageProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
  19 INT_PTR CALLBACK AppearancePageProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
  20 INT_PTR CALLBACK SettingsPageProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
  21 UINT CALLBACK SettingsPageCallbackProc(HWND hwnd, UINT uMsg, LPPROPSHEETPAGE ppsp);
  22
  23 HINSTANCE hApplet = 0;
  24 HWND hCPLWindow;
  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     g_GlobalData.desktop_color = GetSysColor(COLOR_DESKTOP);
 135
 136     LoadString(hApplet, IDS_CPLNAME, Caption, sizeof(Caption) / sizeof(TCHAR));
 137
 138     ZeroMemory(&psh, sizeof(PROPSHEETHEADER));
 139     psh.dwSize = sizeof(PROPSHEETHEADER);
 140     psh.dwFlags = PSH_USECALLBACK | PSH_PROPTITLE;
 141     psh.hwndParent = hCPLWindow;
 142     psh.hInstance = hApplet;
 143     psh.hIcon = LoadIcon(hApplet, MAKEINTRESOURCE(IDC_DESK_ICON));
 144     psh.pszCaption = Caption;
 145     psh.nPages = 0;
 146     psh.nStartPage = 0;
 147     psh.phpage = hpsp;
 148
 149     /* Allow shell extensions to replace the background page */
 150     hpsxa = SHCreatePropSheetExtArray(HKEY_LOCAL_MACHINE, REGSTR_PATH_CONTROLSFOLDER TEXT("\\Desk"), MAX_DESK_PAGES - psh.nPages);
 151
 152     for (i = 0; i != sizeof(PropPages) / sizeof(PropPages[0]); i++)
 153     {
 154         /* Override the background page if requested by a shell extension */
 155         if (PropPages[i].idDlg == IDD_BACKGROUND && hpsxa != NULL &&
 156             SHReplaceFromPropSheetExtArray(hpsxa, CPLPAGE_DISPLAY_BACKGROUND, PropSheetAddPage, (LPARAM)&psh) != 0)
 157         {
 158             /* The shell extension added one or more pages to replace the background page.
 159                Don't create the built-in page anymore! */
 160             continue;
 161         }
 162
 163         InitPropSheetPage(&psh, PropPages[i].idDlg, PropPages[i].DlgProc, PropPages[i].Callback);
 164     }
 165
 166     /* NOTE: Don't call SHAddFromPropSheetExtArray here because this applet only allows
 167              replacing the background page but not extending the applet by more pages */
 168
 169     ret = (LONG)(PropertySheet(&psh) != -1);
 170
 171     if (hpsxa != NULL)
 172         SHDestroyPropSheetExtArray(hpsxa);
 173
 174     return ret;
 175 }
 176
 177
 178 /* Control Panel Callback */
 179 LONG CALLBACK
 180 CPlApplet(HWND hwndCPl, UINT uMsg, LPARAM lParam1, LPARAM lParam2)
 181 {
 182     int i = (int)lParam1;
 183
 184     switch (uMsg)
 185     {
 186         case CPL_INIT:
 187             return TRUE;
 188
 189         case CPL_GETCOUNT:
 190             return NUM_APPLETS;
 191
 192         case CPL_INQUIRE:
 193             {
 194                 CPLINFO *CPlInfo = (CPLINFO*)lParam2;
 195                 CPlInfo->lData = 0;
 196                 CPlInfo->idIcon = Applets[i].idIcon;
 197                 CPlInfo->idName = Applets[i].idName;
 198                 CPlInfo->idInfo = Applets[i].idDescription;
 199             }
 200             break;
 201
 202         case CPL_DBLCLK:
 203             hCPLWindow = hwndCPl;
 204             Applets[i].AppletProc(hwndCPl, uMsg, lParam1, lParam2);
 205             break;
 206     }
 207
 208     return FALSE;
 209 }
 210
 211
 212 BOOL WINAPI
 213 DllMain(HINSTANCE hInstDLL, DWORD dwReason, LPVOID lpvReserved)
 214 {
 215     UNREFERENCED_PARAMETER(lpvReserved);
 216
 217     switch (dwReason)
 218     {
 219         case DLL_PROCESS_ATTACH:
 220             CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
 221             RegisterPreviewControl(hInstDLL);
 222 //        case DLL_THREAD_ATTACH:
 223             hApplet = hInstDLL;
 224             break;
 225
 226         case DLL_PROCESS_DETACH:
 227             UnregisterPreviewControl(hInstDLL);
 228             CoUninitialize();
 229             break;
 230     }
 231
 232     return TRUE;
 233 }