dlls/shell32/control.c

   1 /* Control Panel management
   2  *
   3  * Copyright 2001 Eric Pouech
   4  * Copyright 2008 Owen Rudge
   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 St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <assert.h>
  22 #include <stdarg.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "wingdi.h"
  30 #include "winuser.h"
  31 #include "winreg.h"
  32 #include "wine/debug.h"
  33 #include "cpl.h"
  34 #include "wine/unicode.h"
  35 #include "commctrl.h"
  36
  37 #define NO_SHLWAPI_REG
  38 #include "shlwapi.h"
  39
  40 #include "cpanel.h"
  41 #include "shresdef.h"
  42 #include "shell32_main.h"
  43
  44 #define MAX_STRING_LEN      1024
  45
  46 WINE_DEFAULT_DEBUG_CHANNEL(shlctrl);
  47
  48 void Control_UnloadApplet(CPlApplet* applet)
  49 {
  50     unsigned    i;
  51
  52     for (i = 0; i < applet->count; i++)
  53         applet->proc(applet->hWnd, CPL_STOP, i, applet->info[i].data);
  54
  55     if (applet->proc) applet->proc(applet->hWnd, CPL_EXIT, 0L, 0L);
  56     FreeLibrary(applet->hModule);
  57     list_remove( &applet->entry );
  58     HeapFree(GetProcessHeap(), 0, applet->cmd);
  59     HeapFree(GetProcessHeap(), 0, applet);
  60 }
  61
  62 CPlApplet*      Control_LoadApplet(HWND hWnd, LPCWSTR cmd, CPanel* panel)
  63 {
  64     CPlApplet*  applet;
  65     unsigned    i;
  66     CPLINFO     info;
  67     NEWCPLINFOW newinfo;
  68
  69     if (!(applet = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*applet))))
  70        return applet;
  71
  72     if (!(applet->cmd = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(cmd)+1) * sizeof(WCHAR)))) {
  73         WARN("Cannot allocate memory for applet path\n");
  74         goto theError;
  75     }
  76
  77     lstrcpyW(applet->cmd, cmd);
  78
  79     applet->hWnd = hWnd;
  80
  81     if (!(applet->hModule = LoadLibraryW(cmd))) {
  82         WARN("Cannot load control panel applet %s\n", debugstr_w(cmd));
  83         goto theError;
  84     }
  85     if (!(applet->proc = (APPLET_PROC)GetProcAddress(applet->hModule, "CPlApplet"))) {
  86         WARN("Not a valid control panel applet %s\n", debugstr_w(cmd));
  87         goto theError;
  88     }
  89     if (!applet->proc(hWnd, CPL_INIT, 0L, 0L)) {
  90         WARN("Init of applet has failed\n");
  91         goto theError;
  92     }
  93     if ((applet->count = applet->proc(hWnd, CPL_GETCOUNT, 0L, 0L)) == 0) {
  94         WARN("No subprogram in applet\n");
  95         applet->proc(applet->hWnd, CPL_EXIT, 0, 0);
  96         goto theError;
  97     }
  98
  99     applet = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, applet,
 100                          FIELD_OFFSET( CPlApplet, info[applet->count] ));
 101
 102     for (i = 0; i < applet->count; i++) {
 103        ZeroMemory(&newinfo, sizeof(newinfo));
 104        newinfo.dwSize = sizeof(NEWCPLINFOA);
 105        applet->info[i].helpfile[0] = 0;
 106        /* proc is supposed to return a null value upon success for
 107         * CPL_INQUIRE and CPL_NEWINQUIRE
 108         * However, real drivers don't seem to behave like this
 109         * So, use introspection rather than return value
 110         */
 111        applet->proc(hWnd, CPL_INQUIRE, i, (LPARAM)&info);
 112        applet->info[i].data = info.lData;
 113        if (info.idIcon != CPL_DYNAMIC_RES)
 114            applet->info[i].icon = LoadIconW(applet->hModule, MAKEINTRESOURCEW(info.idIcon));
 115        if (info.idName != CPL_DYNAMIC_RES)
 116            LoadStringW(applet->hModule, info.idName,
 117                        applet->info[i].name, sizeof(applet->info[i].name) / sizeof(WCHAR));
 118        if (info.idInfo != CPL_DYNAMIC_RES)
 119            LoadStringW(applet->hModule, info.idInfo,
 120                        applet->info[i].info, sizeof(applet->info[i].info) / sizeof(WCHAR));
 121
 122        /* some broken control panels seem to return incorrect values in CPL_INQUIRE,
 123           but proper data in CPL_NEWINQUIRE. if we get an empty string or a null
 124           icon, see what we can get from CPL_NEWINQUIRE */
 125
 126        if (!applet->info[i].name[0]) info.idName = CPL_DYNAMIC_RES;
 127
 128        /* zero-length szInfo may not be a buggy applet, but it doesn't hurt for us
 129           to check anyway */
 130
 131        if (!applet->info[i].info[0]) info.idInfo = CPL_DYNAMIC_RES;
 132
 133        if (applet->info[i].icon == NULL)
 134            info.idIcon = CPL_DYNAMIC_RES;
 135
 136        if ((info.idIcon == CPL_DYNAMIC_RES) || (info.idName == CPL_DYNAMIC_RES) ||
 137            (info.idInfo == CPL_DYNAMIC_RES)) {
 138            applet->proc(hWnd, CPL_NEWINQUIRE, i, (LPARAM)&newinfo);
 139
 140            applet->info[i].data = newinfo.lData;
 141            if (info.idIcon == CPL_DYNAMIC_RES) {
 142                if (!newinfo.hIcon) WARN("couldn't get icon for applet %u\n", i);
 143                applet->info[i].icon = newinfo.hIcon;
 144            }
 145            if (newinfo.dwSize == sizeof(NEWCPLINFOW)) {
 146                if (info.idName == CPL_DYNAMIC_RES)
 147                    memcpy(applet->info[i].name, newinfo.szName, sizeof(newinfo.szName));
 148                if (info.idInfo == CPL_DYNAMIC_RES)
 149                    memcpy(applet->info[i].info, newinfo.szInfo, sizeof(newinfo.szInfo));
 150                memcpy(applet->info[i].helpfile, newinfo.szHelpFile, sizeof(newinfo.szHelpFile));
 151            } else {
 152                if (info.idName == CPL_DYNAMIC_RES)
 153                    MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szName,
 154                                        sizeof(((LPNEWCPLINFOA)&newinfo)->szName) / sizeof(CHAR),
 155                                        applet->info[i].name, sizeof(applet->info[i].name) / sizeof(WCHAR));
 156                if (info.idInfo == CPL_DYNAMIC_RES)
 157                    MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szInfo,
 158                                        sizeof(((LPNEWCPLINFOA)&newinfo)->szInfo) / sizeof(CHAR),
 159                                        applet->info[i].info, sizeof(applet->info[i].info) / sizeof(WCHAR));
 160                MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szHelpFile,
 161                                    sizeof(((LPNEWCPLINFOA)&newinfo)->szHelpFile) / sizeof(CHAR),
 162                                    applet->info[i].helpfile,
 163                                    sizeof(applet->info[i].helpfile) / sizeof(WCHAR));
 164            }
 165        }
 166     }
 167
 168     list_add_head( &panel->applets, &applet->entry );
 169     return applet;
 170
 171  theError:
 172     FreeLibrary(applet->hModule);
 173     HeapFree(GetProcessHeap(), 0, applet->cmd);
 174     HeapFree(GetProcessHeap(), 0, applet);
 175     return NULL;
 176 }
 177
 178 #define IDC_LISTVIEW        1000
 179 #define IDC_STATUSBAR       1001
 180
 181 #define NUM_COLUMNS            2
 182 #define LISTVIEW_DEFSTYLE   (WS_CHILD | WS_VISIBLE | WS_TABSTOP |\
 183                              LVS_SORTASCENDING | LVS_AUTOARRANGE | LVS_SINGLESEL)
 184
 185 static BOOL Control_CreateListView (CPanel *panel)
 186 {
 187     RECT ws, sb;
 188     WCHAR empty_string[] = {0};
 189     WCHAR buf[MAX_STRING_LEN];
 190     LVCOLUMNW lvc;
 191
 192     /* Create list view */
 193     GetClientRect(panel->hWndStatusBar, &sb);
 194     GetClientRect(panel->hWnd, &ws);
 195
 196     panel->hWndListView = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW,
 197                           empty_string, LISTVIEW_DEFSTYLE | LVS_ICON,
 198                           0, 0, ws.right - ws.left, ws.bottom - ws.top -
 199                           (sb.bottom - sb.top), panel->hWnd,
 200                           (HMENU) IDC_LISTVIEW, panel->hInst, NULL);
 201
 202     if (!panel->hWndListView)
 203         return FALSE;
 204
 205     /* Create image lists for list view */
 206     panel->hImageListSmall = ImageList_Create(GetSystemMetrics(SM_CXSMICON),
 207         GetSystemMetrics(SM_CYSMICON), ILC_COLOR32 | ILC_MASK, 1, 1);
 208     panel->hImageListLarge = ImageList_Create(GetSystemMetrics(SM_CXICON),
 209         GetSystemMetrics(SM_CYICON), ILC_COLOR32 | ILC_MASK, 1, 1);
 210
 211     SendMessageW(panel->hWndListView, LVM_SETIMAGELIST, LVSIL_SMALL, (LPARAM)panel->hImageListSmall);
 212     SendMessageW(panel->hWndListView, LVM_SETIMAGELIST, LVSIL_NORMAL, (LPARAM)panel->hImageListLarge);
 213
 214     /* Create columns for list view */
 215     lvc.mask = LVCF_FMT | LVCF_TEXT | LVCF_SUBITEM | LVCF_WIDTH;
 216     lvc.pszText = buf;
 217     lvc.fmt = LVCFMT_LEFT;
 218
 219     /* Name column */
 220     lvc.iSubItem = 0;
 221     lvc.cx = (ws.right - ws.left) / 3;
 222     LoadStringW(shell32_hInstance, IDS_CPANEL_NAME, buf, sizeof(buf) / sizeof(buf[0]));
 223
 224     if (ListView_InsertColumnW(panel->hWndListView, 0, &lvc) == -1)
 225         return FALSE;
 226
 227     /* Description column */
 228     lvc.iSubItem = 1;
 229     lvc.cx = ((ws.right - ws.left) / 3) * 2;
 230     LoadStringW(shell32_hInstance, IDS_CPANEL_DESCRIPTION, buf, sizeof(buf) /
 231         sizeof(buf[0]));
 232
 233     if (ListView_InsertColumnW(panel->hWndListView, 1, &lvc) == -1)
 234         return FALSE;
 235
 236     return(TRUE);
 237 }
 238
 239 static void      Control_WndProc_Create(HWND hWnd, const CREATESTRUCTW* cs)
 240 {
 241    CPanel* panel = cs->lpCreateParams;
 242    HMENU hMenu, hSubMenu;
 243    CPlApplet* applet;
 244    MENUITEMINFOW mii;
 245    unsigned int i;
 246    int menucount, index;
 247    CPlItem *item;
 248    LVITEMW lvItem;
 249    INITCOMMONCONTROLSEX icex;
 250    INT sb_parts;
 251    int itemidx;
 252
 253    SetWindowLongPtrW(hWnd, 0, (LONG_PTR)panel);
 254    panel->hWnd = hWnd;
 255
 256    /* Initialise common control DLL */
 257    icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
 258    icex.dwICC = ICC_LISTVIEW_CLASSES | ICC_BAR_CLASSES;
 259    InitCommonControlsEx(&icex);
 260
 261    /* create the status bar */
 262    if (!(panel->hWndStatusBar = CreateStatusWindowW(WS_CHILD | WS_VISIBLE | CCS_BOTTOM | SBARS_SIZEGRIP, NULL, hWnd, IDC_STATUSBAR)))
 263        return;
 264
 265    sb_parts = -1;
 266    SendMessageW(panel->hWndStatusBar, SB_SETPARTS, 1, (LPARAM) &sb_parts);
 267
 268    /* create the list view */
 269    if (!Control_CreateListView(panel))
 270        return;
 271
 272    hMenu = LoadMenuW(shell32_hInstance, MAKEINTRESOURCEW(MENU_CPANEL));
 273
 274    /* insert menu items for applets */
 275    hSubMenu = GetSubMenu(hMenu, 0);
 276    menucount = 0;
 277
 278    LIST_FOR_EACH_ENTRY( applet, &panel->applets, CPlApplet, entry )
 279    {
 280       for (i = 0; i < applet->count; i++) {
 281          /* set up a CPlItem for this particular subprogram */
 282          item = HeapAlloc(GetProcessHeap(), 0, sizeof(CPlItem));
 283
 284          if (!item)
 285             continue;
 286
 287          item->applet = applet;
 288          item->id = i;
 289
 290          mii.cbSize = sizeof(MENUITEMINFOW);
 291          mii.fMask = MIIM_ID | MIIM_STRING | MIIM_DATA;
 292          mii.dwTypeData = applet->info[i].name;
 293          mii.cch = sizeof(applet->info[i].name) / sizeof(WCHAR);
 294          mii.wID = IDM_CPANEL_APPLET_BASE + menucount;
 295          mii.dwItemData = (ULONG_PTR)item;
 296
 297          if (InsertMenuItemW(hSubMenu, menucount, TRUE, &mii)) {
 298             /* add the list view item */
 299             HICON icon = applet->info[i].icon;
 300             if (!icon) icon = LoadImageW( 0, (LPCWSTR)IDI_WINLOGO, IMAGE_ICON, 0, 0, LR_SHARED );
 301             index = ImageList_AddIcon(panel->hImageListLarge, icon);
 302             ImageList_AddIcon(panel->hImageListSmall, icon);
 303
 304             lvItem.mask = LVIF_IMAGE | LVIF_TEXT | LVIF_PARAM;
 305             lvItem.iItem = menucount;
 306             lvItem.iSubItem = 0;
 307             lvItem.pszText = applet->info[i].name;
 308             lvItem.iImage = index;
 309             lvItem.lParam = (LPARAM) item;
 310
 311             itemidx = ListView_InsertItemW(panel->hWndListView, &lvItem);
 312
 313             /* add the description */
 314             ListView_SetItemTextW(panel->hWndListView, itemidx, 1, applet->info[i].info);
 315
 316             /* update menu bar, increment count */
 317             DrawMenuBar(hWnd);
 318             menucount++;
 319          }
 320       }
 321    }
 322
 323    panel->total_subprogs = menucount;
 324
 325    /* check the "large items" icon in the View menu */
 326    hSubMenu = GetSubMenu(hMenu, 1);
 327    CheckMenuRadioItem(hSubMenu, FCIDM_SHVIEW_BIGICON, FCIDM_SHVIEW_REPORTVIEW,
 328       FCIDM_SHVIEW_BIGICON, MF_BYCOMMAND);
 329
 330    SetMenu(hWnd, hMenu);
 331 }
 332
 333 static void Control_FreeCPlItems(HWND hWnd, CPanel *panel)
 334 {
 335     HMENU hMenu, hSubMenu;
 336     MENUITEMINFOW mii;
 337     unsigned int i;
 338
 339     /* get the File menu */
 340     hMenu = GetMenu(hWnd);
 341
 342     if (!hMenu)
 343         return;
 344
 345     hSubMenu = GetSubMenu(hMenu, 0);
 346
 347     if (!hSubMenu)
 348         return;
 349
 350     /* loop and free the item data */
 351     for (i = IDM_CPANEL_APPLET_BASE; i <= IDM_CPANEL_APPLET_BASE + panel->total_subprogs; i++)
 352     {
 353         mii.cbSize = sizeof(MENUITEMINFOW);
 354         mii.fMask = MIIM_DATA;
 355
 356         if (!GetMenuItemInfoW(hSubMenu, i, FALSE, &mii))
 357             continue;
 358
 359         HeapFree(GetProcessHeap(), 0, (LPVOID) mii.dwItemData);
 360     }
 361 }
 362
 363 static void Control_UpdateListViewStyle(CPanel *panel, UINT style, UINT id)
 364 {
 365     HMENU hMenu, hSubMenu;
 366
 367     SetWindowLongW(panel->hWndListView, GWL_STYLE, LISTVIEW_DEFSTYLE | style);
 368
 369     /* update the menu */
 370     hMenu = GetMenu(panel->hWnd);
 371     hSubMenu = GetSubMenu(hMenu, 1);
 372
 373     CheckMenuRadioItem(hSubMenu, FCIDM_SHVIEW_BIGICON, FCIDM_SHVIEW_REPORTVIEW,
 374         id, MF_BYCOMMAND);
 375 }
 376
 377 static CPlItem* Control_GetCPlItem_From_MenuID(HWND hWnd, UINT id)
 378 {
 379     HMENU hMenu, hSubMenu;
 380     MENUITEMINFOW mii;
 381
 382     /* retrieve the CPlItem structure from the menu item data */
 383     hMenu = GetMenu(hWnd);
 384
 385     if (!hMenu)
 386         return NULL;
 387
 388     hSubMenu = GetSubMenu(hMenu, 0);
 389
 390     if (!hSubMenu)
 391         return NULL;
 392
 393     mii.cbSize = sizeof(MENUITEMINFOW);
 394     mii.fMask = MIIM_DATA;
 395
 396     if (!GetMenuItemInfoW(hSubMenu, id, FALSE, &mii))
 397         return NULL;
 398
 399     return (CPlItem *) mii.dwItemData;
 400 }
 401
 402 static CPlItem* Control_GetCPlItem_From_ListView(CPanel *panel)
 403 {
 404     LVITEMW lvItem;
 405     int selitem;
 406
 407     selitem = SendMessageW(panel->hWndListView, LVM_GETNEXTITEM, -1, LVNI_FOCUSED
 408         | LVNI_SELECTED);
 409
 410     if (selitem != -1)
 411     {
 412         lvItem.iItem = selitem;
 413         lvItem.mask = LVIF_PARAM;
 414
 415         if (SendMessageW(panel->hWndListView, LVM_GETITEMW, 0, (LPARAM) &lvItem))
 416             return (CPlItem *) lvItem.lParam;
 417     }
 418
 419     return NULL;
 420 }
 421
 422 static void Control_StartApplet(HWND hWnd, CPlItem *item)
 423 {
 424     WCHAR verbOpen[] = {'c','p','l','o','p','e','n',0};
 425     WCHAR format[] = {'@','%','d',0};
 426     WCHAR param[MAX_PATH];
 427
 428     /* execute the applet if item is valid */
 429     if (item)
 430     {
 431         wsprintfW(param, format, item->id);
 432         ShellExecuteW(hWnd, verbOpen, item->applet->cmd, param, NULL, SW_SHOW);
 433     }
 434 }
 435
 436 static LRESULT WINAPI   Control_WndProc(HWND hWnd, UINT wMsg,
 437                                         WPARAM lParam1, LPARAM lParam2)
 438 {
 439    CPanel*      panel = (CPanel*)GetWindowLongPtrW(hWnd, 0);
 440
 441    if (panel || wMsg == WM_CREATE) {
 442       switch (wMsg) {
 443       case WM_CREATE:
 444          Control_WndProc_Create(hWnd, (CREATESTRUCTW*)lParam2);
 445          return 0;
 446       case WM_DESTROY:
 447          {
 448              CPlApplet *applet, *next;
 449              LIST_FOR_EACH_ENTRY_SAFE( applet, next, &panel->applets, CPlApplet, entry )
 450                  Control_UnloadApplet(applet);
 451          }
 452          Control_FreeCPlItems(hWnd, panel);
 453          PostQuitMessage(0);
 454          break;
 455       case WM_COMMAND:
 456          switch (LOWORD(lParam1))
 457          {
 458              case IDM_CPANEL_EXIT:
 459                  SendMessageW(hWnd, WM_CLOSE, 0, 0);
 460                  return 0;
 461
 462              case IDM_CPANEL_ABOUT:
 463                  {
 464                      WCHAR appName[MAX_STRING_LEN];
 465                      HICON icon = LoadImageW(shell32_hInstance, MAKEINTRESOURCEW(IDI_SHELL_CONTROL_PANEL),
 466                                              IMAGE_ICON, 48, 48, LR_SHARED);
 467
 468                      LoadStringW(shell32_hInstance, IDS_CPANEL_TITLE, appName,
 469                          sizeof(appName) / sizeof(appName[0]));
 470                      ShellAboutW(hWnd, appName, NULL, icon);
 471
 472                      return 0;
 473                  }
 474
 475              case FCIDM_SHVIEW_BIGICON:
 476                  Control_UpdateListViewStyle(panel, LVS_ICON, FCIDM_SHVIEW_BIGICON);
 477                  return 0;
 478
 479              case FCIDM_SHVIEW_SMALLICON:
 480                  Control_UpdateListViewStyle(panel, LVS_SMALLICON, FCIDM_SHVIEW_SMALLICON);
 481                  return 0;
 482
 483              case FCIDM_SHVIEW_LISTVIEW:
 484                  Control_UpdateListViewStyle(panel, LVS_LIST, FCIDM_SHVIEW_LISTVIEW);
 485                  return 0;
 486
 487              case FCIDM_SHVIEW_REPORTVIEW:
 488                  Control_UpdateListViewStyle(panel, LVS_REPORT, FCIDM_SHVIEW_REPORTVIEW);
 489                  return 0;
 490
 491              default:
 492                  /* check if this is an applet */
 493                  if ((LOWORD(lParam1) >= IDM_CPANEL_APPLET_BASE) &&
 494                      (LOWORD(lParam1) <= IDM_CPANEL_APPLET_BASE + panel->total_subprogs))
 495                  {
 496                      Control_StartApplet(hWnd, Control_GetCPlItem_From_MenuID(hWnd, LOWORD(lParam1)));
 497                      return 0;
 498                  }
 499
 500                  break;
 501          }
 502
 503          break;
 504
 505       case WM_NOTIFY:
 506       {
 507           LPNMHDR nmh = (LPNMHDR) lParam2;
 508
 509           switch (nmh->idFrom)
 510           {
 511               case IDC_LISTVIEW:
 512                   switch (nmh->code)
 513                   {
 514                       case NM_RETURN:
 515                       case NM_DBLCLK:
 516                       {
 517                           Control_StartApplet(hWnd, Control_GetCPlItem_From_ListView(panel));
 518                           return 0;
 519                       }
 520                       case LVN_ITEMCHANGED:
 521                       {
 522                           CPlItem *item = Control_GetCPlItem_From_ListView(panel);
 523
 524                           /* update the status bar if item is valid */
 525                           if (item)
 526                               SetWindowTextW(panel->hWndStatusBar, item->applet->info[item->id].info);
 527                           else
 528                               SetWindowTextW(panel->hWndStatusBar, NULL);
 529
 530                           return 0;
 531                       }
 532                   }
 533
 534                   break;
 535           }
 536
 537           break;
 538       }
 539
 540       case WM_MENUSELECT:
 541           /* check if this is an applet */
 542           if ((LOWORD(lParam1) >= IDM_CPANEL_APPLET_BASE) &&
 543               (LOWORD(lParam1) <= IDM_CPANEL_APPLET_BASE + panel->total_subprogs))
 544           {
 545               CPlItem *item = Control_GetCPlItem_From_MenuID(hWnd, LOWORD(lParam1));
 546
 547               /* update the status bar if item is valid */
 548               if (item)
 549                   SetWindowTextW(panel->hWndStatusBar, item->applet->info[item->id].info);
 550           }
 551           else if ((HIWORD(lParam1) == 0xFFFF) && (lParam2 == 0))
 552           {
 553               /* reset status bar description to that of the selected icon */
 554               CPlItem *item = Control_GetCPlItem_From_ListView(panel);
 555
 556               if (item)
 557                   SetWindowTextW(panel->hWndStatusBar, item->applet->info[item->id].info);
 558               else
 559                   SetWindowTextW(panel->hWndStatusBar, NULL);
 560
 561               return 0;
 562           }
 563           else
 564               SetWindowTextW(panel->hWndStatusBar, NULL);
 565
 566           return 0;
 567
 568       case WM_SIZE:
 569       {
 570           HDWP hdwp;
 571           RECT sb;
 572
 573           hdwp = BeginDeferWindowPos(2);
 574
 575           if (hdwp == NULL)
 576               break;
 577
 578           GetClientRect(panel->hWndStatusBar, &sb);
 579
 580           hdwp = DeferWindowPos(hdwp, panel->hWndListView, NULL, 0, 0,
 581               LOWORD(lParam2), HIWORD(lParam2) - (sb.bottom - sb.top),
 582               SWP_NOZORDER | SWP_NOMOVE);
 583
 584           if (hdwp == NULL)
 585               break;
 586
 587           hdwp = DeferWindowPos(hdwp, panel->hWndStatusBar, NULL, 0, 0,
 588               LOWORD(lParam2), LOWORD(lParam1), SWP_NOZORDER | SWP_NOMOVE);
 589
 590           if (hdwp != NULL)
 591               EndDeferWindowPos(hdwp);
 592
 593           return 0;
 594       }
 595      }
 596    }
 597
 598    return DefWindowProcW(hWnd, wMsg, lParam1, lParam2);
 599 }
 600
 601 static void    Control_DoInterface(CPanel* panel, HWND hWnd, HINSTANCE hInst)
 602 {
 603     WNDCLASSEXW wc;
 604     MSG         msg;
 605     WCHAR appName[MAX_STRING_LEN];
 606     const WCHAR className[] = {'S','h','e','l','l','_','C','o','n','t','r','o',
 607         'l','_','W','n','d','C','l','a','s','s',0};
 608
 609     LoadStringW(shell32_hInstance, IDS_CPANEL_TITLE, appName, sizeof(appName) / sizeof(appName[0]));
 610
 611     wc.cbSize = sizeof(wc);
 612     wc.style = CS_HREDRAW|CS_VREDRAW;
 613     wc.lpfnWndProc = Control_WndProc;
 614     wc.cbClsExtra = 0;
 615     wc.cbWndExtra = sizeof(CPlApplet*);
 616     wc.hInstance = panel->hInst = hInst;
 617     wc.hIcon = LoadIconW( shell32_hInstance, MAKEINTRESOURCEW(IDI_SHELL_CONTROL_PANEL) );
 618     wc.hCursor = LoadCursorW( 0, (LPWSTR)IDC_ARROW );
 619     wc.hbrBackground = GetStockObject(WHITE_BRUSH);
 620     wc.lpszMenuName = NULL;
 621     wc.lpszClassName = className;
 622     wc.hIconSm = LoadImageW( shell32_hInstance, MAKEINTRESOURCEW(IDI_SHELL_CONTROL_PANEL), IMAGE_ICON,
 623                              GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON), LR_SHARED);
 624
 625     if (!RegisterClassExW(&wc)) return;
 626
 627     CreateWindowExW(0, wc.lpszClassName, appName,
 628                     WS_OVERLAPPEDWINDOW | WS_VISIBLE,
 629                     CW_USEDEFAULT, CW_USEDEFAULT,
 630                     CW_USEDEFAULT, CW_USEDEFAULT,
 631                     hWnd, NULL, hInst, panel);
 632     if (!panel->hWnd) return;
 633
 634     while (GetMessageW(&msg, panel->hWnd, 0, 0)) {
 635         TranslateMessage(&msg);
 636         DispatchMessageW(&msg);
 637     }
 638 }
 639
 640 static void Control_RegisterRegistryApplets(HWND hWnd, CPanel *panel, HKEY hkey_root, LPCWSTR szRepPath)
 641 {
 642     WCHAR name[MAX_PATH];
 643     WCHAR value[MAX_PATH];
 644     HKEY hkey;
 645
 646     if (RegOpenKeyW(hkey_root, szRepPath, &hkey) == ERROR_SUCCESS)
 647     {
 648         int idx = 0;
 649
 650         for(;; ++idx)
 651         {
 652             DWORD nameLen = MAX_PATH;
 653             DWORD valueLen = MAX_PATH;
 654
 655             if (RegEnumValueW(hkey, idx, name, &nameLen, NULL, NULL, (LPBYTE)value, &valueLen) != ERROR_SUCCESS)
 656                 break;
 657
 658             Control_LoadApplet(hWnd, value, panel);
 659         }
 660         RegCloseKey(hkey);
 661     }
 662 }
 663
 664 static  void    Control_DoWindow(CPanel* panel, HWND hWnd, HINSTANCE hInst)
 665 {
 666     HANDLE              h;
 667     WIN32_FIND_DATAW    fd;
 668     WCHAR               buffer[MAX_PATH];
 669     static const WCHAR wszAllCpl[] = {'*','.','c','p','l',0};
 670     static const WCHAR wszRegPath[] = {'S','O','F','T','W','A','R','E','\\','M','i','c','r','o','s','o','f','t',
 671             '\\','W','i','n','d','o','w','s','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n',
 672             '\\','C','o','n','t','r','o','l',' ','P','a','n','e','l','\\','C','p','l','s',0};
 673     WCHAR *p;
 674
 675     /* first add .cpl files in the system directory */
 676     GetSystemDirectoryW( buffer, MAX_PATH );
 677     p = buffer + strlenW(buffer);
 678     *p++ = '\\';
 679     lstrcpyW(p, wszAllCpl);
 680
 681     if ((h = FindFirstFileW(buffer, &fd)) != INVALID_HANDLE_VALUE) {
 682         do {
 683            lstrcpyW(p, fd.cFileName);
 684            Control_LoadApplet(hWnd, buffer, panel);
 685         } while (FindNextFileW(h, &fd));
 686         FindClose(h);
 687     }
 688
 689     /* now check for cpls in the registry */
 690     Control_RegisterRegistryApplets(hWnd, panel, HKEY_LOCAL_MACHINE, wszRegPath);
 691     Control_RegisterRegistryApplets(hWnd, panel, HKEY_CURRENT_USER, wszRegPath);
 692
 693     Control_DoInterface(panel, hWnd, hInst);
 694 }
 695
 696 static  void    Control_DoLaunch(CPanel* panel, HWND hWnd, LPCWSTR wszCmd)
 697    /* forms to parse:
 698     *   foo.cpl,@sp,str
 699     *   foo.cpl,@sp
 700     *   foo.cpl,,str
 701     *   foo.cpl @sp
 702     *   foo.cpl str
 703     *   "a path\foo.cpl"
 704     */
 705 {
 706     LPWSTR      buffer;
 707     LPWSTR      beg = NULL;
 708     LPWSTR      end;
 709     WCHAR       ch;
 710     LPWSTR       ptr;
 711     signed      sp = -1;
 712     LPWSTR      extraPmtsBuf = NULL;
 713     LPWSTR      extraPmts = NULL;
 714     int        quoted = 0;
 715     CPlApplet *applet;
 716
 717     buffer = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(wszCmd) + 1) * sizeof(*wszCmd));
 718     if (!buffer) return;
 719
 720     end = lstrcpyW(buffer, wszCmd);
 721
 722     for (;;) {
 723         ch = *end;
 724         if (ch == '"') quoted = !quoted;
 725         if (!quoted && (ch == ' ' || ch == ',' || ch == '\0')) {
 726             *end = '\0';
 727             if (beg) {
 728                 if (*beg == '@') {
 729                     sp = atoiW(beg + 1);
 730                 } else if (*beg == '\0') {
 731                     sp = -1;
 732                 } else {
 733                     extraPmtsBuf = beg;
 734                 }
 735             }
 736             if (ch == '\0') break;
 737             beg = end + 1;
 738             if (ch == ' ') while (end[1] == ' ') end++;
 739         }
 740         end++;
 741     }
 742     while ((ptr = StrChrW(buffer, '"')))
 743         memmove(ptr, ptr+1, lstrlenW(ptr)*sizeof(WCHAR));
 744
 745     /* now check for any quotes in extraPmtsBuf and remove */
 746     if (extraPmtsBuf != NULL)
 747     {
 748         beg = end = extraPmtsBuf;
 749         quoted = 0;
 750
 751         for (;;) {
 752             ch = *end;
 753             if (ch == '"') quoted = !quoted;
 754             if (!quoted && (ch == ' ' || ch == ',' || ch == '\0')) {
 755                 *end = '\0';
 756                 if (beg) {
 757                     if (*beg != '\0') {
 758                         extraPmts = beg;
 759                     }
 760                 }
 761                 if (ch == '\0') break;
 762                 beg = end + 1;
 763                 if (ch == ' ') while (end[1] == ' ') end++;
 764             }
 765             end++;
 766         }
 767
 768         while ((ptr = StrChrW(extraPmts, '"')))
 769             memmove(ptr, ptr+1, lstrlenW(ptr)*sizeof(WCHAR));
 770
 771         if (extraPmts == NULL)
 772             extraPmts = extraPmtsBuf;
 773     }
 774
 775     /* Now check if there had been a numerical value in the extra params */
 776     if ((extraPmts) && (*extraPmts == '@') && (sp == -1)) {
 777         sp = atoiW(extraPmts + 1);
 778     }
 779
 780     TRACE("cmd %s, extra %s, sp %d\n", debugstr_w(buffer), debugstr_w(extraPmts), sp);
 781
 782     applet = Control_LoadApplet(hWnd, buffer, panel);
 783     if (applet)
 784     {
 785         /* we've been given a textual parameter (or none at all) */
 786         if (sp == -1) {
 787             while ((++sp) != applet->count) {
 788                 TRACE("sp %d, name %s\n", sp, debugstr_w(applet->info[sp].name));
 789
 790                 if (StrCmpIW(extraPmts, applet->info[sp].name) == 0)
 791                     break;
 792             }
 793         }
 794
 795         if (sp >= applet->count) {
 796             WARN("Out of bounds (%u >= %u), setting to 0\n", sp, applet->count);
 797             sp = 0;
 798         }
 799
 800         if (!applet->proc(applet->hWnd, CPL_STARTWPARMSW, sp, (LPARAM)extraPmts))
 801             applet->proc(applet->hWnd, CPL_DBLCLK, sp, applet->info[sp].data);
 802
 803         Control_UnloadApplet(applet);
 804     }
 805
 806     HeapFree(GetProcessHeap(), 0, buffer);
 807 }
 808
 809 /*************************************************************************
 810  * Control_RunDLLW                      [SHELL32.@]
 811  *
 812  */
 813 void WINAPI Control_RunDLLW(HWND hWnd, HINSTANCE hInst, LPCWSTR cmd, DWORD nCmdShow)
 814 {
 815     CPanel      panel;
 816
 817     TRACE("(%p, %p, %s, 0x%08x)\n",
 818           hWnd, hInst, debugstr_w(cmd), nCmdShow);
 819
 820     memset(&panel, 0, sizeof(panel));
 821     list_init( &panel.applets );
 822
 823     if (!cmd || !*cmd) {
 824         Control_DoWindow(&panel, hWnd, hInst);
 825     } else {
 826         Control_DoLaunch(&panel, hWnd, cmd);
 827     }
 828 }
 829
 830 /*************************************************************************
 831  * Control_RunDLLA                      [SHELL32.@]
 832  *
 833  */
 834 void WINAPI Control_RunDLLA(HWND hWnd, HINSTANCE hInst, LPCSTR cmd, DWORD nCmdShow)
 835 {
 836     DWORD len = MultiByteToWideChar(CP_ACP, 0, cmd, -1, NULL, 0 );
 837     LPWSTR wszCmd = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 838     if (wszCmd && MultiByteToWideChar(CP_ACP, 0, cmd, -1, wszCmd, len ))
 839     {
 840         Control_RunDLLW(hWnd, hInst, wszCmd, nCmdShow);
 841     }
 842     HeapFree(GetProcessHeap(), 0, wszCmd);
 843 }
 844
 845 /*************************************************************************
 846  * Control_FillCache_RunDLLW                    [SHELL32.@]
 847  *
 848  */
 849 HRESULT WINAPI Control_FillCache_RunDLLW(HWND hWnd, HANDLE hModule, DWORD w, DWORD x)
 850 {
 851     FIXME("%p %p 0x%08x 0x%08x stub\n", hWnd, hModule, w, x);
 852     return S_OK;
 853 }
 854
 855 /*************************************************************************
 856  * Control_FillCache_RunDLLA                    [SHELL32.@]
 857  *
 858  */
 859 HRESULT WINAPI Control_FillCache_RunDLLA(HWND hWnd, HANDLE hModule, DWORD w, DWORD x)
 860 {
 861     return Control_FillCache_RunDLLW(hWnd, hModule, w, x);
 862 }
 863
 864 /*************************************************************************
 865  * CallCPLEntry16                               [SHELL32.166]
 866  *
 867  * called by desk.cpl on "Advanced" with:
 868  * hMod("DeskCp16.Dll"), pFunc("CplApplet"), 0, 1, 0xc, 0
 869  *
 870  */
 871 DWORD WINAPI CallCPLEntry16(HMODULE hMod, FARPROC pFunc, DWORD dw3, DWORD dw4, DWORD dw5, DWORD dw6)
 872 {
 873     FIXME("(%p, %p, %08x, %08x, %08x, %08x): stub.\n", hMod, pFunc, dw3, dw4, dw5, dw6);
 874     return 0x0deadbee;
 875 }