dll/cpl/desk/desk.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS Display Control Panel
   4  * FILE:            dll/cpl/desk/desk.c
   5  * PURPOSE:         ReactOS Display Control Panel
   6  *
   7  * PROGRAMMERS:     Trevor McCort (lycan359@gmail.com)
   8  */
   9
  10 #include "desk.h"
  11
  12 #include <cplext.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 HWND hCPLWindow;
  26
  27 /* Applets */
  28 APPLET Applets[NUM_APPLETS] =
  29 {
  30     {
  31         IDC_DESK_ICON,
  32         IDS_CPLNAME,
  33         IDS_CPLDESCRIPTION,
  34         DisplayApplet
  35     }
  36 };
  37
  38 HMENU
  39 LoadPopupMenu(IN HINSTANCE hInstance,
  40               IN LPCTSTR lpMenuName)
  41 {
  42     HMENU hMenu, hSubMenu = NULL;
  43
  44     hMenu = LoadMenu(hInstance,
  45                      lpMenuName);
  46
  47     if (hMenu != NULL)
  48     {
  49         hSubMenu = GetSubMenu(hMenu,
  50                               0);
  51         if (hSubMenu != NULL &&
  52             !RemoveMenu(hMenu,
  53                         0,
  54                         MF_BYPOSITION))
  55         {
  56             hSubMenu = NULL;
  57         }
  58
  59         DestroyMenu(hMenu);
  60     }
  61
  62     return hSubMenu;
  63 }
  64
  65 static BOOL CALLBACK
  66 PropSheetAddPage(HPROPSHEETPAGE hpage, LPARAM lParam)
  67 {
  68     PROPSHEETHEADER *ppsh = (PROPSHEETHEADER *)lParam;
  69     if (ppsh != NULL && ppsh->nPages < MAX_DESK_PAGES)
  70     {
  71         ppsh->phpage[ppsh->nPages++] = hpage;
  72         return TRUE;
  73     }
  74
  75     return FALSE;
  76 }
  77
  78 static BOOL
  79 InitPropSheetPage(PROPSHEETHEADER *ppsh, WORD idDlg, DLGPROC DlgProc, LPFNPSPCALLBACK pfnCallback)
  80 {
  81     HPROPSHEETPAGE hPage;
  82     PROPSHEETPAGE psp;
  83
  84     if (ppsh->nPages < MAX_DESK_PAGES)
  85     {
  86         ZeroMemory(&psp, sizeof(psp));
  87         psp.dwSize = sizeof(psp);
  88         psp.dwFlags = PSP_DEFAULT;
  89         if (pfnCallback != NULL)
  90             psp.dwFlags |= PSP_USECALLBACK;
  91         psp.hInstance = hApplet;
  92         psp.pszTemplate = MAKEINTRESOURCE(idDlg);
  93         psp.pfnDlgProc = DlgProc;
  94         psp.pfnCallback = pfnCallback;
  95
  96         hPage = CreatePropertySheetPage(&psp);
  97         if (hPage != NULL)
  98         {
  99             return PropSheetAddPage(hPage, (LPARAM)ppsh);
 100         }
 101     }
 102
 103     return FALSE;
 104 }
 105
 106 static const struct
 107 {
 108     WORD idDlg;
 109     DLGPROC DlgProc;
 110     LPFNPSPCALLBACK Callback;
 111 } PropPages[] =
 112 {
 113     { IDD_BACKGROUND, BackgroundPageProc, NULL },
 114     { IDD_SCREENSAVER, ScreenSaverPageProc, NULL },
 115     { IDD_APPEARANCE, AppearancePageProc, NULL },
 116     { IDD_SETTINGS, SettingsPageProc, SettingsPageCallbackProc },
 117 };
 118
 119 /* Display Applet */
 120 static LONG APIENTRY
 121 DisplayApplet(HWND hwnd, UINT uMsg, LPARAM wParam, LPARAM lParam)
 122 {
 123     HPROPSHEETPAGE hpsp[MAX_DESK_PAGES];
 124     PROPSHEETHEADER psh;
 125     HPSXA hpsxa;
 126     TCHAR Caption[1024];
 127     LONG ret;
 128     UINT i;
 129
 130     UNREFERENCED_PARAMETER(lParam);
 131     UNREFERENCED_PARAMETER(wParam);
 132     UNREFERENCED_PARAMETER(uMsg);
 133     UNREFERENCED_PARAMETER(hwnd);
 134
 135     g_GlobalData.desktop_color = GetSysColor(COLOR_DESKTOP);
 136
 137     LoadString(hApplet, IDS_CPLNAME, Caption, sizeof(Caption) / sizeof(TCHAR));
 138
 139     ZeroMemory(&psh, sizeof(PROPSHEETHEADER));
 140     psh.dwSize = sizeof(PROPSHEETHEADER);
 141     psh.dwFlags = PSH_USECALLBACK | PSH_PROPTITLE;
 142     psh.hwndParent = hCPLWindow;
 143     psh.hInstance = hApplet;
 144     psh.hIcon = LoadIcon(hApplet, MAKEINTRESOURCE(IDC_DESK_ICON));
 145     psh.pszCaption = Caption;
 146     psh.nPages = 0;
 147     psh.nStartPage = 0;
 148     psh.phpage = hpsp;
 149
 150     /* Allow shell extensions to replace the background page */
 151     hpsxa = SHCreatePropSheetExtArray(HKEY_LOCAL_MACHINE, REGSTR_PATH_CONTROLSFOLDER TEXT("\\Desk"), MAX_DESK_PAGES - psh.nPages);
 152
 153     for (i = 0; i != sizeof(PropPages) / sizeof(PropPages[0]); i++)
 154     {
 155         /* Override the background page if requested by a shell extension */
 156         if (PropPages[i].idDlg == IDD_BACKGROUND && hpsxa != NULL &&
 157             SHReplaceFromPropSheetExtArray(hpsxa, CPLPAGE_DISPLAY_BACKGROUND, PropSheetAddPage, (LPARAM)&psh) != 0)
 158         {
 159             /* The shell extension added one or more pages to replace the background page.
 160                Don't create the built-in page anymore! */
 161             continue;
 162         }
 163
 164         InitPropSheetPage(&psh, PropPages[i].idDlg, PropPages[i].DlgProc, PropPages[i].Callback);
 165     }
 166
 167     /* NOTE: Don't call SHAddFromPropSheetExtArray here because this applet only allows
 168              replacing the background page but not extending the applet by more pages */
 169
 170     ret = (LONG)(PropertySheet(&psh) != -1);
 171
 172     if (hpsxa != NULL)
 173         SHDestroyPropSheetExtArray(hpsxa);
 174
 175     return ret;
 176 }
 177
 178
 179 /* Control Panel Callback */
 180 LONG CALLBACK
 181 CPlApplet(HWND hwndCPl, UINT uMsg, LPARAM lParam1, LPARAM lParam2)
 182 {
 183     int i = (int)lParam1;
 184
 185     switch (uMsg)
 186     {
 187         case CPL_INIT:
 188             return TRUE;
 189
 190         case CPL_GETCOUNT:
 191             return NUM_APPLETS;
 192
 193         case CPL_INQUIRE:
 194             {
 195                 CPLINFO *CPlInfo = (CPLINFO*)lParam2;
 196                 CPlInfo->lData = 0;
 197                 CPlInfo->idIcon = Applets[i].idIcon;
 198                 CPlInfo->idName = Applets[i].idName;
 199                 CPlInfo->idInfo = Applets[i].idDescription;
 200             }
 201             break;
 202
 203         case CPL_DBLCLK:
 204             hCPLWindow = hwndCPl;
 205             Applets[i].AppletProc(hwndCPl, uMsg, lParam1, lParam2);
 206             break;
 207     }
 208
 209     return FALSE;
 210 }
 211
 212
 213 BOOL WINAPI
 214 DllMain(HINSTANCE hInstDLL, DWORD dwReason, LPVOID lpvReserved)
 215 {
 216     UNREFERENCED_PARAMETER(lpvReserved);
 217
 218     switch (dwReason)
 219     {
 220         case DLL_PROCESS_ATTACH:
 221             CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
 222             RegisterPreviewControl(hInstDLL);
 223 //        case DLL_THREAD_ATTACH:
 224             hApplet = hInstDLL;
 225             break;
 226
 227         case DLL_PROCESS_DETACH:
 228             UnregisterPreviewControl(hInstDLL);
 229             CoUninitialize();
 230             break;
 231     }
 232
 233     return TRUE;
 234 }