dlls/appwiz.cpl/appwiz.c

   1 /*
   2  * Add/Remove Programs applet
   3  * Partially based on Wine Uninstaller
   4  *
   5  * Copyright 2000 Andreas Mohr
   6  * Copyright 2004 Hannu Valtonen
   7  * Copyright 2005 Jonathan Ernst
   8  * Copyright 2001-2002, 2008 Owen Rudge
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  *
  24  */
  25
  26 #define NONAMELESSUNION
  27
  28 #include "config.h"
  29 #include "wine/port.h"
  30
  31 #include <string.h>
  32 #include <stdlib.h>
  33 #include <stdarg.h>
  34 #include <stdio.h>
  35 #include <windef.h>
  36 #include <winbase.h>
  37 #include <winuser.h>
  38 #include <wingdi.h>
  39 #include <winreg.h>
  40 #include <shellapi.h>
  41 #include <commctrl.h>
  42 #include <commdlg.h>
  43 #include <cpl.h>
  44
  45 #include "wine/unicode.h"
  46 #include "wine/list.h"
  47 #include "wine/debug.h"
  48 #include "appwiz.h"
  49 #include "res.h"
  50
  51 WINE_DEFAULT_DEBUG_CHANNEL(appwizcpl);
  52
  53 /* define a maximum length for various buffers we use */
  54 #define MAX_STRING_LEN    1024
  55
  56 typedef struct APPINFO
  57 {
  58     struct list entry;
  59     int id;
  60
  61     LPWSTR title;
  62     LPWSTR path;
  63     LPWSTR path_modify;
  64
  65     LPWSTR icon;
  66     int iconIdx;
  67
  68     LPWSTR publisher;
  69     LPWSTR version;
  70
  71     HKEY regroot;
  72     WCHAR regkey[MAX_STRING_LEN];
  73 } APPINFO;
  74
  75 static struct list app_list = LIST_INIT( app_list );
  76 HINSTANCE hInst;
  77
  78 static WCHAR btnRemove[MAX_STRING_LEN];
  79 static WCHAR btnModifyRemove[MAX_STRING_LEN];
  80
  81 static const WCHAR openW[] = {'o','p','e','n',0};
  82
  83 /* names of registry keys */
  84 static const WCHAR BackSlashW[] = { '\\', 0 };
  85 static const WCHAR DisplayNameW[] = {'D','i','s','p','l','a','y','N','a','m','e',0};
  86 static const WCHAR DisplayIconW[] = {'D','i','s','p','l','a','y','I','c','o','n',0};
  87 static const WCHAR DisplayVersionW[] = {'D','i','s','p','l','a','y','V','e','r',
  88     's','i','o','n',0};
  89 static const WCHAR PublisherW[] = {'P','u','b','l','i','s','h','e','r',0};
  90 static const WCHAR ContactW[] = {'C','o','n','t','a','c','t',0};
  91 static const WCHAR HelpLinkW[] = {'H','e','l','p','L','i','n','k',0};
  92 static const WCHAR HelpTelephoneW[] = {'H','e','l','p','T','e','l','e','p','h',
  93     'o','n','e',0};
  94 static const WCHAR ModifyPathW[] = {'M','o','d','i','f','y','P','a','t','h',0};
  95 static const WCHAR NoModifyW[] = {'N','o','M','o','d','i','f','y',0};
  96 static const WCHAR ReadmeW[] = {'R','e','a','d','m','e',0};
  97 static const WCHAR URLUpdateInfoW[] = {'U','R','L','U','p','d','a','t','e','I',
  98     'n','f','o',0};
  99 static const WCHAR CommentsW[] = {'C','o','m','m','e','n','t','s',0};
 100 static const WCHAR UninstallCommandlineW[] = {'U','n','i','n','s','t','a','l','l',
 101     'S','t','r','i','n','g',0};
 102 static const WCHAR WindowsInstallerW[] = {'W','i','n','d','o','w','s','I','n','s','t','a','l','l','e','r',0};
 103 static const WCHAR SystemComponentW[] = {'S','y','s','t','e','m','C','o','m','p','o','n','e','n','t',0};
 104
 105 static const WCHAR PathUninstallW[] = {
 106         'S','o','f','t','w','a','r','e','\\',
 107         'M','i','c','r','o','s','o','f','t','\\',
 108         'W','i','n','d','o','w','s','\\',
 109         'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
 110         'U','n','i','n','s','t','a','l','l',0 };
 111
 112 /******************************************************************************
 113  * Name       : DllMain
 114  * Description: Entry point for DLL file
 115  */
 116 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
 117                     LPVOID lpvReserved)
 118 {
 119     TRACE("(%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved);
 120
 121     switch (fdwReason)
 122     {
 123         case DLL_PROCESS_ATTACH:
 124             hInst = hinstDLL;
 125             break;
 126     }
 127     return TRUE;
 128 }
 129
 130 /******************************************************************************
 131  * Name       : FreeAppInfo
 132  * Description: Frees memory used by an AppInfo structure, and any children.
 133  */
 134 static void FreeAppInfo(APPINFO *info)
 135 {
 136     HeapFree(GetProcessHeap(), 0, info->title);
 137     HeapFree(GetProcessHeap(), 0, info->path);
 138     HeapFree(GetProcessHeap(), 0, info->path_modify);
 139     HeapFree(GetProcessHeap(), 0, info->icon);
 140     HeapFree(GetProcessHeap(), 0, info->publisher);
 141     HeapFree(GetProcessHeap(), 0, info->version);
 142     HeapFree(GetProcessHeap(), 0, info);
 143 }
 144
 145 /******************************************************************************
 146  * Name       : ReadApplicationsFromRegistry
 147  * Description: Creates a linked list of uninstallable applications from the
 148  *              registry.
 149  * Parameters : root    - Which registry root to read from
 150  * Returns    : TRUE if successful, FALSE otherwise
 151  */
 152 static BOOL ReadApplicationsFromRegistry(HKEY root)
 153 {
 154     HKEY hkeyApp;
 155     int i;
 156     static int id = 0;
 157     DWORD sizeOfSubKeyName, displen, uninstlen;
 158     DWORD dwNoModify, dwType, value, size;
 159     WCHAR subKeyName[256];
 160     WCHAR *command;
 161     APPINFO *info = NULL;
 162     LPWSTR iconPtr;
 163
 164     sizeOfSubKeyName = sizeof(subKeyName) / sizeof(subKeyName[0]);
 165
 166     for (i = 0; RegEnumKeyExW(root, i, subKeyName, &sizeOfSubKeyName, NULL,
 167         NULL, NULL, NULL) != ERROR_NO_MORE_ITEMS; ++i)
 168     {
 169         RegOpenKeyExW(root, subKeyName, 0, KEY_READ, &hkeyApp);
 170         size = sizeof(value);
 171         if (!RegQueryValueExW(hkeyApp, SystemComponentW, NULL, &dwType, (LPBYTE)&value, &size)
 172             && dwType == REG_DWORD && value == 1)
 173         {
 174             RegCloseKey(hkeyApp);
 175             sizeOfSubKeyName = sizeof(subKeyName) / sizeof(subKeyName[0]);
 176             continue;
 177         }
 178         displen = 0;
 179         uninstlen = 0;
 180         if (!RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, NULL, &displen))
 181         {
 182             size = sizeof(value);
 183             if (!RegQueryValueExW(hkeyApp, WindowsInstallerW, NULL, &dwType, (LPBYTE)&value, &size)
 184                 && dwType == REG_DWORD && value == 1)
 185             {
 186                 static const WCHAR fmtW[] = {'m','s','i','e','x','e','c',' ','/','x','%','s',0};
 187                 int len = lstrlenW(fmtW) + lstrlenW(subKeyName);
 188
 189                 if (!(command = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR)))) goto err;
 190                 wsprintfW(command, fmtW, subKeyName);
 191             }
 192             else if (!RegQueryValueExW(hkeyApp, UninstallCommandlineW, 0, 0, NULL, &uninstlen))
 193             {
 194                 if (!(command = HeapAlloc(GetProcessHeap(), 0, uninstlen))) goto err;
 195                 RegQueryValueExW(hkeyApp, UninstallCommandlineW, 0, 0, (LPBYTE)command, &uninstlen);
 196             }
 197             else
 198             {
 199                 RegCloseKey(hkeyApp);
 200                 sizeOfSubKeyName = sizeof(subKeyName) / sizeof(subKeyName[0]);
 201                 continue;
 202             }
 203
 204             info = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(struct APPINFO));
 205             if (!info) goto err;
 206
 207             info->title = HeapAlloc(GetProcessHeap(), 0, displen);
 208
 209             if (!info->title)
 210                 goto err;
 211
 212             RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, (LPBYTE)info->title,
 213                 &displen);
 214
 215             /* now get DisplayIcon */
 216             displen = 0;
 217             RegQueryValueExW(hkeyApp, DisplayIconW, 0, 0, NULL, &displen);
 218
 219             if (displen == 0)
 220                 info->icon = 0;
 221             else
 222             {
 223                 info->icon = HeapAlloc(GetProcessHeap(), 0, displen);
 224
 225                 if (!info->icon)
 226                     goto err;
 227
 228                 RegQueryValueExW(hkeyApp, DisplayIconW, 0, 0, (LPBYTE)info->icon,
 229                     &displen);
 230
 231                 /* separate the index from the icon name, if supplied */
 232                 iconPtr = strchrW(info->icon, ',');
 233
 234                 if (iconPtr)
 235                 {
 236                     *iconPtr++ = 0;
 237                     info->iconIdx = atoiW(iconPtr);
 238                 }
 239             }
 240
 241             /* publisher, version */
 242             if (RegQueryValueExW(hkeyApp, PublisherW, 0, 0, NULL, &displen) ==
 243                 ERROR_SUCCESS)
 244             {
 245                 info->publisher = HeapAlloc(GetProcessHeap(), 0, displen);
 246
 247                 if (!info->publisher)
 248                     goto err;
 249
 250                 RegQueryValueExW(hkeyApp, PublisherW, 0, 0, (LPBYTE)info->publisher,
 251                     &displen);
 252             }
 253
 254             if (RegQueryValueExW(hkeyApp, DisplayVersionW, 0, 0, NULL, &displen) ==
 255                 ERROR_SUCCESS)
 256             {
 257                 info->version = HeapAlloc(GetProcessHeap(), 0, displen);
 258
 259                 if (!info->version)
 260                     goto err;
 261
 262                 RegQueryValueExW(hkeyApp, DisplayVersionW, 0, 0, (LPBYTE)info->version,
 263                     &displen);
 264             }
 265
 266             /* Check if NoModify is set */
 267             dwType = REG_DWORD;
 268             dwNoModify = 0;
 269             displen = sizeof(DWORD);
 270
 271             if (RegQueryValueExW(hkeyApp, NoModifyW, NULL, &dwType, (LPBYTE)&dwNoModify, &displen)
 272                 != ERROR_SUCCESS)
 273             {
 274                 dwNoModify = 0;
 275             }
 276
 277             /* Some installers incorrectly create a REG_SZ instead of a REG_DWORD */
 278             if (dwType == REG_SZ)
 279                 dwNoModify = (*(BYTE *)&dwNoModify == '1');
 280
 281             /* Fetch the modify path */
 282             if (!dwNoModify)
 283             {
 284                 size = sizeof(value);
 285                 if (!RegQueryValueExW(hkeyApp, WindowsInstallerW, NULL, &dwType, (LPBYTE)&value, &size)
 286                     && dwType == REG_DWORD && value == 1)
 287                 {
 288                     static const WCHAR fmtW[] = {'m','s','i','e','x','e','c',' ','/','i','%','s',0};
 289                     int len = lstrlenW(fmtW) + lstrlenW(subKeyName);
 290
 291                     if (!(info->path_modify = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR)))) goto err;
 292                     wsprintfW(info->path_modify, fmtW, subKeyName);
 293                 }
 294                 else if (!RegQueryValueExW(hkeyApp, ModifyPathW, 0, 0, NULL, &displen))
 295                 {
 296                     if (!(info->path_modify = HeapAlloc(GetProcessHeap(), 0, displen))) goto err;
 297                     RegQueryValueExW(hkeyApp, ModifyPathW, 0, 0, (LPBYTE)info->path_modify, &displen);
 298                 }
 299             }
 300
 301             /* registry key */
 302             RegOpenKeyExW(root, NULL, 0, KEY_READ, &info->regroot);
 303             lstrcpyW(info->regkey, subKeyName);
 304             info->path = command;
 305
 306             info->id = id++;
 307             list_add_tail( &app_list, &info->entry );
 308         }
 309
 310         RegCloseKey(hkeyApp);
 311         sizeOfSubKeyName = sizeof(subKeyName) / sizeof(subKeyName[0]);
 312     }
 313
 314     return TRUE;
 315 err:
 316     RegCloseKey(hkeyApp);
 317     if (info) FreeAppInfo(info);
 318     HeapFree(GetProcessHeap(), 0, command);
 319     return FALSE;
 320 }
 321
 322
 323 /******************************************************************************
 324  * Name       : AddApplicationsToList
 325  * Description: Populates the list box with applications.
 326  * Parameters : hWnd    - Handle of the dialog box
 327  */
 328 static void AddApplicationsToList(HWND hWnd, HIMAGELIST hList)
 329 {
 330     APPINFO *iter;
 331     LVITEMW lvItem;
 332     HICON hIcon;
 333     int index;
 334
 335     LIST_FOR_EACH_ENTRY( iter, &app_list, APPINFO, entry )
 336     {
 337         if (!iter->title[0]) continue;
 338
 339         /* get the icon */
 340         index = 0;
 341
 342         if (iter->icon)
 343         {
 344             if (ExtractIconExW(iter->icon, iter->iconIdx, NULL, &hIcon, 1) == 1)
 345             {
 346                 index = ImageList_AddIcon(hList, hIcon);
 347                 DestroyIcon(hIcon);
 348             }
 349         }
 350
 351         lvItem.mask = LVIF_IMAGE | LVIF_TEXT | LVIF_PARAM;
 352         lvItem.iItem = iter->id;
 353         lvItem.iSubItem = 0;
 354         lvItem.pszText = iter->title;
 355         lvItem.iImage = index;
 356         lvItem.lParam = iter->id;
 357
 358         index = ListView_InsertItemW(hWnd, &lvItem);
 359
 360         /* now add the subitems (columns) */
 361         ListView_SetItemTextW(hWnd, index, 1, iter->publisher);
 362         ListView_SetItemTextW(hWnd, index, 2, iter->version);
 363     }
 364 }
 365
 366 /******************************************************************************
 367  * Name       : RemoveItemsFromList
 368  * Description: Clears the application list box.
 369  * Parameters : hWnd    - Handle of the dialog box
 370  */
 371 static void RemoveItemsFromList(HWND hWnd)
 372 {
 373     SendDlgItemMessageW(hWnd, IDL_PROGRAMS, LVM_DELETEALLITEMS, 0, 0);
 374 }
 375
 376 /******************************************************************************
 377  * Name       : EmptyList
 378  * Description: Frees memory used by the application linked list.
 379  */
 380 static inline void EmptyList(void)
 381 {
 382     APPINFO *info, *next;
 383     LIST_FOR_EACH_ENTRY_SAFE( info, next, &app_list, APPINFO, entry )
 384     {
 385         list_remove( &info->entry );
 386         FreeAppInfo( info );
 387     }
 388 }
 389
 390 /******************************************************************************
 391  * Name       : UpdateButtons
 392  * Description: Enables/disables the Add/Remove button depending on current
 393  *              selection in list box.
 394  * Parameters : hWnd    - Handle of the dialog box
 395  */
 396 static void UpdateButtons(HWND hWnd)
 397 {
 398     APPINFO *iter;
 399     LVITEMW lvItem;
 400     LRESULT selitem = SendDlgItemMessageW(hWnd, IDL_PROGRAMS, LVM_GETNEXTITEM, -1,
 401        LVNI_FOCUSED | LVNI_SELECTED);
 402     BOOL enable_modify = FALSE;
 403
 404     if (selitem != -1)
 405     {
 406         lvItem.iItem = selitem;
 407         lvItem.mask = LVIF_PARAM;
 408
 409         if (SendDlgItemMessageW(hWnd, IDL_PROGRAMS, LVM_GETITEMW, 0, (LPARAM) &lvItem))
 410         {
 411             LIST_FOR_EACH_ENTRY( iter, &app_list, APPINFO, entry )
 412             {
 413                 if (iter->id == lvItem.lParam)
 414                 {
 415                     /* Decide whether to display Modify/Remove as one button or two */
 416                     enable_modify = (iter->path_modify != NULL);
 417
 418                     /* Update title as appropriate */
 419                     if (iter->path_modify == NULL)
 420                         SetWindowTextW(GetDlgItem(hWnd, IDC_ADDREMOVE), btnModifyRemove);
 421                     else
 422                         SetWindowTextW(GetDlgItem(hWnd, IDC_ADDREMOVE), btnRemove);
 423
 424                     break;
 425                 }
 426             }
 427         }
 428     }
 429
 430     /* Enable/disable other buttons if necessary */
 431     EnableWindow(GetDlgItem(hWnd, IDC_ADDREMOVE), (selitem != -1));
 432     EnableWindow(GetDlgItem(hWnd, IDC_SUPPORT_INFO), (selitem != -1));
 433     EnableWindow(GetDlgItem(hWnd, IDC_MODIFY), enable_modify);
 434 }
 435
 436 /******************************************************************************
 437  * Name       : InstallProgram
 438  * Description: Search for potential Installer and execute it.
 439  * Parameters : hWnd    - Handle of the dialog box
 440  */
 441 static void InstallProgram(HWND hWnd)
 442 {
 443     static const WCHAR filters[] = {'%','s','%','c','*','i','n','s','t','a','l','*','.','e','x','e',';','*','s','e','t','u','p','*','.','e','x','e',';','*','.','m','s','i','%','c','%','s','%','c','*','.','e','x','e','%','c','%','s','%','c','*','.','*','%','c',0}
 444 ;
 445     OPENFILENAMEW ofn;
 446     WCHAR titleW[MAX_STRING_LEN];
 447     WCHAR filter_installs[MAX_STRING_LEN];
 448     WCHAR filter_programs[MAX_STRING_LEN];
 449     WCHAR filter_all[MAX_STRING_LEN];
 450     WCHAR FilterBufferW[MAX_PATH];
 451     WCHAR FileNameBufferW[MAX_PATH];
 452
 453     LoadStringW(hInst, IDS_CPL_TITLE, titleW, sizeof(titleW)/sizeof(WCHAR));
 454     LoadStringW(hInst, IDS_FILTER_INSTALLS, filter_installs, sizeof(filter_installs)/sizeof(WCHAR));
 455     LoadStringW(hInst, IDS_FILTER_PROGRAMS, filter_programs, sizeof(filter_programs)/sizeof(WCHAR));
 456     LoadStringW(hInst, IDS_FILTER_ALL, filter_all, sizeof(filter_all)/sizeof(WCHAR));
 457
 458     snprintfW( FilterBufferW, MAX_PATH, filters, filter_installs, 0, 0,
 459                filter_programs, 0, 0, filter_all, 0, 0 );
 460     memset(&ofn, 0, sizeof(OPENFILENAMEW));
 461     ofn.lStructSize = sizeof(OPENFILENAMEW);
 462     ofn.hwndOwner = hWnd;
 463     ofn.hInstance = hInst;
 464     ofn.lpstrFilter = FilterBufferW;
 465     ofn.nFilterIndex = 0;
 466     ofn.lpstrFile = FileNameBufferW;
 467     ofn.nMaxFile = MAX_PATH;
 468     ofn.lpstrFileTitle = NULL;
 469     ofn.nMaxFileTitle = 0;
 470     ofn.lpstrTitle = titleW;
 471     ofn.Flags = OFN_HIDEREADONLY | OFN_ENABLESIZING;
 472     FileNameBufferW[0] = 0;
 473
 474     if (GetOpenFileNameW(&ofn))
 475     {
 476         SHELLEXECUTEINFOW sei;
 477         memset(&sei, 0, sizeof(sei));
 478         sei.cbSize = sizeof(sei);
 479         sei.lpVerb = openW;
 480         sei.nShow = SW_SHOWDEFAULT;
 481         sei.fMask = 0;
 482         sei.lpFile = ofn.lpstrFile;
 483
 484         ShellExecuteExW(&sei);
 485     }
 486 }
 487
 488 /******************************************************************************
 489  * Name       : UninstallProgram
 490  * Description: Executes the specified program's installer.
 491  * Parameters : id      - the internal ID of the installer to remove
 492  * Parameters : button  - ID of button pressed (Modify or Remove)
 493  */
 494 static void UninstallProgram(int id, DWORD button)
 495 {
 496     APPINFO *iter;
 497     STARTUPINFOW si;
 498     PROCESS_INFORMATION info;
 499     WCHAR errormsg[MAX_STRING_LEN];
 500     WCHAR sUninstallFailed[MAX_STRING_LEN];
 501     BOOL res;
 502
 503     LoadStringW(hInst, IDS_UNINSTALL_FAILED, sUninstallFailed,
 504         sizeof(sUninstallFailed) / sizeof(sUninstallFailed[0]));
 505
 506     LIST_FOR_EACH_ENTRY( iter, &app_list, APPINFO, entry )
 507     {
 508         if (iter->id == id)
 509         {
 510             TRACE("Uninstalling %s (%s)\n", wine_dbgstr_w(iter->title),
 511                 wine_dbgstr_w(iter->path));
 512
 513             memset(&si, 0, sizeof(STARTUPINFOW));
 514             si.cb = sizeof(STARTUPINFOW);
 515             si.wShowWindow = SW_NORMAL;
 516
 517             res = CreateProcessW(NULL, (button == IDC_MODIFY) ? iter->path_modify : iter->path,
 518                 NULL, NULL, FALSE, 0, NULL, NULL, &si, &info);
 519
 520             if (res)
 521             {
 522                 CloseHandle(info.hThread);
 523
 524                 /* wait for the process to exit */
 525                 WaitForSingleObject(info.hProcess, INFINITE);
 526                 CloseHandle(info.hProcess);
 527             }
 528             else
 529             {
 530                 wsprintfW(errormsg, sUninstallFailed, iter->path);
 531
 532                 if (MessageBoxW(0, errormsg, iter->title, MB_YESNO |
 533                     MB_ICONQUESTION) == IDYES)
 534                 {
 535                     /* delete the application's uninstall entry */
 536                     RegDeleteKeyW(iter->regroot, iter->regkey);
 537                     RegCloseKey(iter->regroot);
 538                 }
 539             }
 540
 541             break;
 542         }
 543     }
 544 }
 545
 546 /**********************************************************************************
 547  * Name       : SetInfoDialogText
 548  * Description: Sets the text of a label in a window, based upon a registry entry
 549  *              or string passed to the function.
 550  * Parameters : hKey         - registry entry to read from, NULL if not reading
 551  *                             from registry
 552  *              lpKeyName    - key to read from, or string to check if hKey is NULL
 553  *              lpAltMessage - alternative message if entry not found
 554  *              hWnd         - handle of dialog box
 555  *              iDlgItem     - ID of label in dialog box
 556  */
 557 static void SetInfoDialogText(HKEY hKey, LPCWSTR lpKeyName, LPCWSTR lpAltMessage,
 558   HWND hWnd, int iDlgItem)
 559 {
 560     WCHAR buf[MAX_STRING_LEN];
 561     DWORD buflen;
 562     HWND hWndDlgItem;
 563
 564     hWndDlgItem = GetDlgItem(hWnd, iDlgItem);
 565
 566     /* if hKey is null, lpKeyName contains the string we want to check */
 567     if (hKey == NULL)
 568     {
 569         if (lpKeyName && lpKeyName[0])
 570             SetWindowTextW(hWndDlgItem, lpKeyName);
 571         else
 572             SetWindowTextW(hWndDlgItem, lpAltMessage);
 573     }
 574     else
 575     {
 576         buflen = MAX_STRING_LEN;
 577
 578         if ((RegQueryValueExW(hKey, lpKeyName, 0, 0, (LPBYTE) buf, &buflen) ==
 579            ERROR_SUCCESS) && buf[0])
 580             SetWindowTextW(hWndDlgItem, buf);
 581         else
 582             SetWindowTextW(hWndDlgItem, lpAltMessage);
 583     }
 584 }
 585
 586 /******************************************************************************
 587  * Name       : SupportInfoDlgProc
 588  * Description: Callback procedure for support info dialog
 589  * Parameters : hWnd    - hWnd of the window
 590  *              msg     - reason for calling function
 591  *              wParam  - additional parameter
 592  *              lParam  - additional parameter
 593  * Returns    : Depends on the message
 594  */
 595 static INT_PTR CALLBACK SupportInfoDlgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 596 {
 597     APPINFO *iter;
 598     HKEY hkey;
 599     WCHAR oldtitle[MAX_STRING_LEN];
 600     WCHAR buf[MAX_STRING_LEN];
 601     WCHAR key[MAX_STRING_LEN];
 602     WCHAR notfound[MAX_STRING_LEN];
 603
 604     switch(msg)
 605     {
 606         case WM_INITDIALOG:
 607             LIST_FOR_EACH_ENTRY( iter, &app_list, APPINFO, entry )
 608             {
 609                 if (iter->id == (int) lParam)
 610                 {
 611                     lstrcpyW(key, PathUninstallW);
 612                     lstrcatW(key, BackSlashW);
 613                     lstrcatW(key, iter->regkey);
 614
 615                     /* check the application's registry entries */
 616                     RegOpenKeyExW(iter->regroot, key, 0, KEY_READ, &hkey);
 617
 618                     /* Load our "not specified" string */
 619                     LoadStringW(hInst, IDS_NOT_SPECIFIED, notfound,
 620                         sizeof(notfound) / sizeof(notfound[0]));
 621
 622                     /* Update the data for items already read into the structure */
 623                     SetInfoDialogText(NULL, iter->publisher, notfound, hWnd,
 624                         IDC_INFO_PUBLISHER);
 625                     SetInfoDialogText(NULL, iter->version, notfound, hWnd,
 626                         IDC_INFO_VERSION);
 627
 628                     /* And now update the data for those items in the registry */
 629                     SetInfoDialogText(hkey, ContactW, notfound, hWnd,
 630                         IDC_INFO_CONTACT);
 631                     SetInfoDialogText(hkey, HelpLinkW, notfound, hWnd,
 632                         IDC_INFO_SUPPORT);
 633                     SetInfoDialogText(hkey, HelpTelephoneW, notfound, hWnd,
 634                         IDC_INFO_PHONE);
 635                     SetInfoDialogText(hkey, ReadmeW, notfound, hWnd,
 636                         IDC_INFO_README);
 637                     SetInfoDialogText(hkey, URLUpdateInfoW, notfound, hWnd,
 638                         IDC_INFO_UPDATES);
 639                     SetInfoDialogText(hkey, CommentsW, notfound, hWnd,
 640                         IDC_INFO_COMMENTS);
 641
 642                     /* Update the main label with the app name */
 643                     if (GetWindowTextW(GetDlgItem(hWnd, IDC_INFO_LABEL), oldtitle,
 644                         MAX_STRING_LEN) != 0)
 645                     {
 646                         wsprintfW(buf, oldtitle, iter->title);
 647                         SetWindowTextW(GetDlgItem(hWnd, IDC_INFO_LABEL), buf);
 648                     }
 649
 650                     RegCloseKey(hkey);
 651
 652                     break;
 653                 }
 654             }
 655
 656             return TRUE;
 657
 658         case WM_DESTROY:
 659             return 0;
 660
 661         case WM_COMMAND:
 662             switch (LOWORD(wParam))
 663             {
 664                 case IDOK:
 665                     EndDialog(hWnd, TRUE);
 666                     break;
 667
 668             }
 669
 670             return TRUE;
 671     }
 672
 673     return FALSE;
 674 }
 675
 676 /******************************************************************************
 677  * Name       : SupportInfo
 678  * Description: Displays the Support Information dialog
 679  * Parameters : hWnd    - Handle of the main dialog
 680  *              id      - ID of the application to display information for
 681  */
 682 static void SupportInfo(HWND hWnd, int id)
 683 {
 684     DialogBoxParamW(hInst, MAKEINTRESOURCEW(IDD_INFO), hWnd, SupportInfoDlgProc, id);
 685 }
 686
 687 /* Definition of column headers for AddListViewColumns function */
 688 typedef struct AppWizColumn {
 689    int width;
 690    int fmt;
 691    int title;
 692 } AppWizColumn;
 693
 694 static const AppWizColumn columns[] = {
 695     {200, LVCFMT_LEFT, IDS_COLUMN_NAME},
 696     {150, LVCFMT_LEFT, IDS_COLUMN_PUBLISHER},
 697     {100, LVCFMT_LEFT, IDS_COLUMN_VERSION},
 698 };
 699
 700 /******************************************************************************
 701  * Name       : AddListViewColumns
 702  * Description: Adds column headers to the list view control.
 703  * Parameters : hWnd    - Handle of the list view control.
 704  * Returns    : TRUE if completed successfully, FALSE otherwise.
 705  */
 706 static BOOL AddListViewColumns(HWND hWnd)
 707 {
 708     WCHAR buf[MAX_STRING_LEN];
 709     LVCOLUMNW lvc;
 710     UINT i;
 711
 712     lvc.mask = LVCF_FMT | LVCF_TEXT | LVCF_SUBITEM | LVCF_WIDTH;
 713
 714     /* Add the columns */
 715     for (i = 0; i < sizeof(columns) / sizeof(columns[0]); i++)
 716     {
 717         lvc.iSubItem = i;
 718         lvc.pszText = buf;
 719
 720         /* set width and format */
 721         lvc.cx = columns[i].width;
 722         lvc.fmt = columns[i].fmt;
 723
 724         LoadStringW(hInst, columns[i].title, buf, sizeof(buf) / sizeof(buf[0]));
 725
 726         if (ListView_InsertColumnW(hWnd, i, &lvc) == -1)
 727             return FALSE;
 728     }
 729
 730     return TRUE;
 731 }
 732
 733 /******************************************************************************
 734  * Name       : AddListViewImageList
 735  * Description: Creates an ImageList for the list view control.
 736  * Parameters : hWnd    - Handle of the list view control.
 737  * Returns    : Handle of the image list.
 738  */
 739 static HIMAGELIST AddListViewImageList(HWND hWnd)
 740 {
 741     HIMAGELIST hSmall;
 742     HICON hDefaultIcon;
 743
 744     hSmall = ImageList_Create(GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON),
 745                               ILC_COLOR32 | ILC_MASK, 1, 1);
 746
 747     /* Add default icon to image list */
 748     hDefaultIcon = LoadIconW(hInst, MAKEINTRESOURCEW(ICO_MAIN));
 749     ImageList_AddIcon(hSmall, hDefaultIcon);
 750     DestroyIcon(hDefaultIcon);
 751
 752     SendMessageW(hWnd, LVM_SETIMAGELIST, LVSIL_SMALL, (LPARAM)hSmall);
 753
 754     return hSmall;
 755 }
 756
 757 /******************************************************************************
 758  * Name       : ResetApplicationList
 759  * Description: Empties the app list, if need be, and recreates it.
 760  * Parameters : bFirstRun  - TRUE if this is the first time this is run, FALSE otherwise
 761  *              hWnd       - handle of the dialog box
 762  *              hImageList - handle of the image list
 763  * Returns    : New handle of the image list.
 764  */
 765 static HIMAGELIST ResetApplicationList(BOOL bFirstRun, HWND hWnd, HIMAGELIST hImageList)
 766 {
 767     static const BOOL is_64bit = sizeof(void *) > sizeof(int);
 768     HWND hWndListView;
 769     HKEY hkey;
 770
 771     hWndListView = GetDlgItem(hWnd, IDL_PROGRAMS);
 772
 773     /* if first run, create the image list and add the listview columns */
 774     if (bFirstRun)
 775     {
 776         if (!AddListViewColumns(hWndListView))
 777             return NULL;
 778     }
 779     else /* we need to remove the existing things first */
 780     {
 781         RemoveItemsFromList(hWnd);
 782         ImageList_Destroy(hImageList);
 783
 784         /* reset the list, since it's probably changed if the uninstallation was
 785            successful */
 786         EmptyList();
 787     }
 788
 789     /* now create the image list and add the applications to the listview */
 790     hImageList = AddListViewImageList(hWndListView);
 791
 792     if (!RegOpenKeyExW(HKEY_LOCAL_MACHINE, PathUninstallW, 0, KEY_READ, &hkey))
 793     {
 794         ReadApplicationsFromRegistry(hkey);
 795         RegCloseKey(hkey);
 796     }
 797     if (is_64bit &&
 798         !RegOpenKeyExW(HKEY_LOCAL_MACHINE, PathUninstallW, 0, KEY_READ|KEY_WOW64_32KEY, &hkey))
 799     {
 800         ReadApplicationsFromRegistry(hkey);
 801         RegCloseKey(hkey);
 802     }
 803     if (!RegOpenKeyExW(HKEY_CURRENT_USER, PathUninstallW, 0, KEY_READ, &hkey))
 804     {
 805         ReadApplicationsFromRegistry(hkey);
 806         RegCloseKey(hkey);
 807     }
 808
 809     AddApplicationsToList(hWndListView, hImageList);
 810     UpdateButtons(hWnd);
 811
 812     return(hImageList);
 813 }
 814
 815 /******************************************************************************
 816  * Name       : MainDlgProc
 817  * Description: Callback procedure for main tab
 818  * Parameters : hWnd    - hWnd of the window
 819  *              msg     - reason for calling function
 820  *              wParam  - additional parameter
 821  *              lParam  - additional parameter
 822  * Returns    : Depends on the message
 823  */
 824 static INT_PTR CALLBACK MainDlgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 825 {
 826     int selitem;
 827     static HIMAGELIST hImageList;
 828     LPNMHDR nmh;
 829     LVITEMW lvItem;
 830
 831     switch(msg)
 832     {
 833         case WM_INITDIALOG:
 834             hImageList = ResetApplicationList(TRUE, hWnd, hImageList);
 835
 836             if (!hImageList)
 837                 return FALSE;
 838
 839             return TRUE;
 840
 841         case WM_DESTROY:
 842             RemoveItemsFromList(hWnd);
 843             ImageList_Destroy(hImageList);
 844
 845             EmptyList();
 846
 847             return 0;
 848
 849         case WM_NOTIFY:
 850             nmh = (LPNMHDR) lParam;
 851
 852             switch (nmh->idFrom)
 853             {
 854                 case IDL_PROGRAMS:
 855                     switch (nmh->code)
 856                     {
 857                         case LVN_ITEMCHANGED:
 858                             UpdateButtons(hWnd);
 859                             break;
 860                     }
 861                     break;
 862             }
 863
 864             return TRUE;
 865
 866         case WM_COMMAND:
 867             switch (LOWORD(wParam))
 868             {
 869                 case IDC_INSTALL:
 870                     InstallProgram(hWnd);
 871                     break;
 872
 873                 case IDC_ADDREMOVE:
 874                 case IDC_MODIFY:
 875                     selitem = SendDlgItemMessageW(hWnd, IDL_PROGRAMS,
 876                         LVM_GETNEXTITEM, -1, LVNI_FOCUSED|LVNI_SELECTED);
 877
 878                     if (selitem != -1)
 879                     {
 880                         lvItem.iItem = selitem;
 881                         lvItem.mask = LVIF_PARAM;
 882
 883                         if (SendDlgItemMessageW(hWnd, IDL_PROGRAMS, LVM_GETITEMW,
 884                           0, (LPARAM) &lvItem))
 885                             UninstallProgram(lvItem.lParam, LOWORD(wParam));
 886                     }
 887
 888                     hImageList = ResetApplicationList(FALSE, hWnd, hImageList);
 889
 890                     break;
 891
 892                 case IDC_SUPPORT_INFO:
 893                     selitem = SendDlgItemMessageW(hWnd, IDL_PROGRAMS,
 894                         LVM_GETNEXTITEM, -1, LVNI_FOCUSED | LVNI_SELECTED);
 895
 896                     if (selitem != -1)
 897                     {
 898                         lvItem.iItem = selitem;
 899                         lvItem.mask = LVIF_PARAM;
 900
 901                         if (SendDlgItemMessageW(hWnd, IDL_PROGRAMS, LVM_GETITEMW,
 902                           0, (LPARAM) &lvItem))
 903                             SupportInfo(hWnd, lvItem.lParam);
 904                     }
 905
 906                     break;
 907             }
 908
 909             return TRUE;
 910     }
 911
 912     return FALSE;
 913 }
 914
 915 static int CALLBACK propsheet_callback( HWND hwnd, UINT msg, LPARAM lparam )
 916 {
 917     switch (msg)
 918     {
 919     case PSCB_INITIALIZED:
 920         SendMessageW( hwnd, WM_SETICON, ICON_BIG, (LPARAM)LoadIconW( hInst, MAKEINTRESOURCEW(ICO_MAIN) ));
 921         break;
 922     }
 923     return 0;
 924 }
 925
 926 /******************************************************************************
 927  * Name       : StartApplet
 928  * Description: Main routine for applet
 929  * Parameters : hWnd    - hWnd of the Control Panel
 930  */
 931 static void StartApplet(HWND hWnd)
 932 {
 933     PROPSHEETPAGEW psp;
 934     PROPSHEETHEADERW psh;
 935     WCHAR tab_title[MAX_STRING_LEN], app_title[MAX_STRING_LEN];
 936
 937     /* Load the strings we will use */
 938     LoadStringW(hInst, IDS_TAB1_TITLE, tab_title, sizeof(tab_title) / sizeof(tab_title[0]));
 939     LoadStringW(hInst, IDS_CPL_TITLE, app_title, sizeof(app_title) / sizeof(app_title[0]));
 940     LoadStringW(hInst, IDS_REMOVE, btnRemove, sizeof(btnRemove) / sizeof(btnRemove[0]));
 941     LoadStringW(hInst, IDS_MODIFY_REMOVE, btnModifyRemove, sizeof(btnModifyRemove) / sizeof(btnModifyRemove[0]));
 942
 943     /* Fill out the PROPSHEETPAGE */
 944     psp.dwSize = sizeof (PROPSHEETPAGEW);
 945     psp.dwFlags = PSP_USETITLE;
 946     psp.hInstance = hInst;
 947     psp.u.pszTemplate = MAKEINTRESOURCEW (IDD_MAIN);
 948     psp.u2.pszIcon = NULL;
 949     psp.pfnDlgProc = MainDlgProc;
 950     psp.pszTitle = tab_title;
 951     psp.lParam = 0;
 952
 953     /* Fill out the PROPSHEETHEADER */
 954     psh.dwSize = sizeof (PROPSHEETHEADERW);
 955     psh.dwFlags = PSH_PROPSHEETPAGE | PSH_USEICONID | PSH_USECALLBACK;
 956     psh.hwndParent = hWnd;
 957     psh.hInstance = hInst;
 958     psh.u.pszIcon = MAKEINTRESOURCEW(ICO_MAIN);
 959     psh.pszCaption = app_title;
 960     psh.nPages = 1;
 961     psh.u3.ppsp = &psp;
 962     psh.pfnCallback = propsheet_callback;
 963     psh.u2.nStartPage = 0;
 964
 965     /* Display the property sheet */
 966     PropertySheetW (&psh);
 967 }
 968
 969 static LONG start_params(const WCHAR *params)
 970 {
 971     static const WCHAR install_geckoW[] = {'i','n','s','t','a','l','l','_','g','e','c','k','o',0};
 972     static const WCHAR install_monoW[] = {'i','n','s','t','a','l','l','_','m','o','n','o',0};
 973
 974     if(!params)
 975         return FALSE;
 976
 977     if(!strcmpW(params, install_geckoW)) {
 978         install_addon(ADDON_GECKO);
 979         return TRUE;
 980     }
 981
 982     if(!strcmpW(params, install_monoW)) {
 983         install_addon(ADDON_MONO);
 984         return TRUE;
 985     }
 986
 987     WARN("unknown param %s\n", debugstr_w(params));
 988     return FALSE;
 989 }
 990
 991 /******************************************************************************
 992  * Name       : CPlApplet
 993  * Description: Entry point for Control Panel applets
 994  * Parameters : hwndCPL - hWnd of the Control Panel
 995  *              message - reason for calling function
 996  *              lParam1 - additional parameter
 997  *              lParam2 - additional parameter
 998  * Returns    : Depends on the message
 999  */
1000 LONG CALLBACK CPlApplet(HWND hwndCPL, UINT message, LPARAM lParam1, LPARAM lParam2)
1001 {
1002     INITCOMMONCONTROLSEX iccEx;
1003
1004     switch (message)
1005     {
1006         case CPL_INIT:
1007             iccEx.dwSize = sizeof(iccEx);
1008             iccEx.dwICC = ICC_LISTVIEW_CLASSES | ICC_TAB_CLASSES | ICC_LINK_CLASS;
1009
1010             InitCommonControlsEx(&iccEx);
1011
1012             return TRUE;
1013
1014         case CPL_GETCOUNT:
1015             return 1;
1016
1017         case CPL_STARTWPARMSW:
1018             return start_params((const WCHAR *)lParam2);
1019
1020         case CPL_INQUIRE:
1021         {
1022             CPLINFO *appletInfo = (CPLINFO *) lParam2;
1023
1024             appletInfo->idIcon = ICO_MAIN;
1025             appletInfo->idName = IDS_CPL_TITLE;
1026             appletInfo->idInfo = IDS_CPL_DESC;
1027             appletInfo->lData = 0;
1028
1029             break;
1030         }
1031
1032         case CPL_DBLCLK:
1033             StartApplet(hwndCPL);
1034             break;
1035     }
1036
1037     return FALSE;
1038 }