reactos/dll/win32/hhctrl.ocx/hhctrl.c

   1 /*
   2  * hhctrl implementation
   3  *
   4  * Copyright 2004 Krzysztof Foltman
   5  * Copyright 2007 Jacek Caban for CodeWeavers
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "wine/debug.h"
  23
  24 #define INIT_GUID
  25 #include "hhctrl.h"
  26
  27 WINE_DEFAULT_DEBUG_CHANNEL(htmlhelp);
  28
  29 HINSTANCE hhctrl_hinstance;
  30 BOOL hh_process = FALSE;
  31
  32 BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD fdwReason, LPVOID lpvReserved)
  33 {
  34     TRACE("(%p,%d,%p)\n", hInstance, fdwReason, lpvReserved);
  35
  36     switch (fdwReason)
  37     {
  38     case DLL_PROCESS_ATTACH:
  39         hhctrl_hinstance = hInstance;
  40         DisableThreadLibraryCalls(hInstance);
  41         break;
  42     case DLL_PROCESS_DETACH:
  43         break;
  44     }
  45     return TRUE;
  46 }
  47
  48 static const char *command_to_string(UINT command)
  49 {
  50 #define X(x) case x: return #x
  51     switch (command)
  52     {
  53         X( HH_DISPLAY_TOPIC );
  54         X( HH_DISPLAY_TOC );
  55         X( HH_DISPLAY_INDEX );
  56         X( HH_DISPLAY_SEARCH );
  57         X( HH_SET_WIN_TYPE );
  58         X( HH_GET_WIN_TYPE );
  59         X( HH_GET_WIN_HANDLE );
  60         X( HH_ENUM_INFO_TYPE );
  61         X( HH_SET_INFO_TYPE );
  62         X( HH_SYNC );
  63         X( HH_RESERVED1 );
  64         X( HH_RESERVED2 );
  65         X( HH_RESERVED3 );
  66         X( HH_KEYWORD_LOOKUP );
  67         X( HH_DISPLAY_TEXT_POPUP );
  68         X( HH_HELP_CONTEXT );
  69         X( HH_TP_HELP_CONTEXTMENU );
  70         X( HH_TP_HELP_WM_HELP );
  71         X( HH_CLOSE_ALL );
  72         X( HH_ALINK_LOOKUP );
  73         X( HH_GET_LAST_ERROR );
  74         X( HH_ENUM_CATEGORY );
  75         X( HH_ENUM_CATEGORY_IT );
  76         X( HH_RESET_IT_FILTER );
  77         X( HH_SET_INCLUSIVE_FILTER );
  78         X( HH_SET_EXCLUSIVE_FILTER );
  79         X( HH_INITIALIZE );
  80         X( HH_UNINITIALIZE );
  81         X( HH_SAFE_DISPLAY_TOPIC );
  82         X( HH_PRETRANSLATEMESSAGE );
  83         X( HH_SET_GLOBAL_PROPERTY );
  84     default: return "???";
  85     }
  86 #undef X
  87 }
  88
  89 static BOOL resolve_filename(const WCHAR *filename, WCHAR *fullname, DWORD buflen)
  90 {
  91     static const WCHAR helpW[] = {'\\','h','e','l','p','\\',0};
  92
  93     GetFullPathNameW(filename, buflen, fullname, NULL);
  94     if (GetFileAttributesW(fullname) == INVALID_FILE_ATTRIBUTES)
  95     {
  96         GetWindowsDirectoryW(fullname, buflen);
  97         strcatW(fullname, helpW);
  98         strcatW(fullname, filename);
  99     }
 100     return (GetFileAttributesW(fullname) != INVALID_FILE_ATTRIBUTES);
 101 }
 102
 103 /******************************************************************
 104  *              HtmlHelpW (HHCTRL.OCX.15)
 105  */
 106 HWND WINAPI HtmlHelpW(HWND caller, LPCWSTR filename, UINT command, DWORD_PTR data)
 107 {
 108     WCHAR fullname[MAX_PATH];
 109
 110     TRACE("(%p, %s, command=%s, data=%lx)\n",
 111           caller, debugstr_w( filename ),
 112           command_to_string( command ), data);
 113
 114     switch (command)
 115     {
 116     case HH_DISPLAY_TOPIC:
 117     case HH_DISPLAY_TOC:
 118     case HH_DISPLAY_SEARCH:{
 119         static const WCHAR delimW[] = {':',':',0};
 120         HHInfo *info;
 121         BOOL res;
 122         WCHAR chm_file[MAX_PATH];
 123         const WCHAR *index;
 124
 125         FIXME("Not all HH cases handled correctly\n");
 126
 127         if (!filename)
 128             return NULL;
 129
 130         index = strstrW(filename, delimW);
 131         if (index)
 132         {
 133             memcpy(chm_file, filename, (index-filename)*sizeof(WCHAR));
 134             chm_file[index-filename] = 0;
 135             filename = chm_file;
 136             index += 2; /* advance beyond "::" for calling NavigateToChm() later */
 137         }
 138
 139         if (!resolve_filename(filename, fullname, MAX_PATH))
 140         {
 141             WARN("can't find %s\n", debugstr_w(filename));
 142             return 0;
 143         }
 144
 145         info = CreateHelpViewer(fullname);
 146         if(!info)
 147             return NULL;
 148
 149         if(!index)
 150             index = info->WinType.pszFile;
 151
 152         res = NavigateToChm(info, info->pCHMInfo->szFile, index);
 153         if(!res)
 154         {
 155             ReleaseHelpViewer(info);
 156             return NULL;
 157         }
 158         return info->WinType.hwndHelp;
 159     }
 160     case HH_HELP_CONTEXT: {
 161         HHInfo *info;
 162         LPWSTR url;
 163
 164         if (!filename)
 165             return NULL;
 166
 167         if (!resolve_filename(filename, fullname, MAX_PATH))
 168         {
 169             WARN("can't find %s\n", debugstr_w(filename));
 170             return 0;
 171         }
 172
 173         info = CreateHelpViewer(fullname);
 174         if(!info)
 175             return NULL;
 176
 177         url = FindContextAlias(info->pCHMInfo, data);
 178         if(!url)
 179         {
 180             ReleaseHelpViewer(info);
 181             return NULL;
 182         }
 183
 184         NavigateToUrl(info, url);
 185         heap_free(url);
 186         return info->WinType.hwndHelp;
 187     }
 188     case HH_PRETRANSLATEMESSAGE: {
 189         static BOOL warned = FALSE;
 190
 191         if (!warned)
 192         {
 193             FIXME("HH_PRETRANSLATEMESSAGE unimplemented\n");
 194             warned = TRUE;
 195         }
 196         return 0;
 197     }
 198     default:
 199         FIXME("HH case %s not handled.\n", command_to_string( command ));
 200     }
 201
 202     return 0;
 203 }
 204
 205 /******************************************************************
 206  *              HtmlHelpA (HHCTRL.OCX.14)
 207  */
 208 HWND WINAPI HtmlHelpA(HWND caller, LPCSTR filename, UINT command, DWORD_PTR data)
 209 {
 210     WCHAR *wfile = NULL, *wdata = NULL;
 211     DWORD len;
 212     HWND result;
 213
 214     if (filename)
 215     {
 216         len = MultiByteToWideChar( CP_ACP, 0, filename, -1, NULL, 0 );
 217         wfile = heap_alloc(len*sizeof(WCHAR));
 218         MultiByteToWideChar( CP_ACP, 0, filename, -1, wfile, len );
 219     }
 220
 221     if (data)
 222     {
 223         switch(command)
 224         {
 225         case HH_ALINK_LOOKUP:
 226         case HH_DISPLAY_SEARCH:
 227         case HH_DISPLAY_TEXT_POPUP:
 228         case HH_GET_LAST_ERROR:
 229         case HH_GET_WIN_TYPE:
 230         case HH_KEYWORD_LOOKUP:
 231         case HH_SET_WIN_TYPE:
 232         case HH_SYNC:
 233             FIXME("structures not handled yet\n");
 234             break;
 235
 236         case HH_DISPLAY_INDEX:
 237         case HH_DISPLAY_TOPIC:
 238         case HH_DISPLAY_TOC:
 239         case HH_GET_WIN_HANDLE:
 240         case HH_SAFE_DISPLAY_TOPIC:
 241             len = MultiByteToWideChar( CP_ACP, 0, (const char*)data, -1, NULL, 0 );
 242             wdata = heap_alloc(len*sizeof(WCHAR));
 243             MultiByteToWideChar( CP_ACP, 0, (const char*)data, -1, wdata, len );
 244             break;
 245
 246         case HH_CLOSE_ALL:
 247         case HH_HELP_CONTEXT:
 248         case HH_INITIALIZE:
 249         case HH_PRETRANSLATEMESSAGE:
 250         case HH_TP_HELP_CONTEXTMENU:
 251         case HH_TP_HELP_WM_HELP:
 252         case HH_UNINITIALIZE:
 253             /* either scalar or pointer to scalar - do nothing */
 254             break;
 255
 256         default:
 257             FIXME("Unknown command: %s (%d)\n", command_to_string(command), command);
 258             break;
 259         }
 260     }
 261
 262     result = HtmlHelpW( caller, wfile, command, wdata ? (DWORD_PTR)wdata : data );
 263
 264     heap_free(wfile);
 265     heap_free(wdata);
 266     return result;
 267 }
 268
 269 /******************************************************************
 270  *              doWinMain (HHCTRL.OCX.13)
 271  */
 272 int WINAPI doWinMain(HINSTANCE hInstance, LPSTR szCmdLine)
 273 {
 274     MSG msg;
 275     int len, buflen, mapid = -1;
 276     WCHAR *filename;
 277     char *endq = NULL;
 278
 279     hh_process = TRUE;
 280
 281     /* Parse command line option of the HTML Help command.
 282      *
 283      * Note: The only currently handled action is "mapid",
 284      *  which corresponds to opening a specific page.
 285      */
 286     while(*szCmdLine == '-')
 287     {
 288         LPSTR space, ptr;
 289
 290         ptr = szCmdLine + 1;
 291         space = strchr(ptr, ' ');
 292         if(!strncmp(ptr, "mapid", space-ptr))
 293         {
 294             char idtxt[10];
 295
 296             ptr += strlen("mapid")+1;
 297             space = strchr(ptr, ' ');
 298             memcpy(idtxt, ptr, space-ptr);
 299             idtxt[space-ptr] = '\0';
 300             mapid = atoi(idtxt);
 301             szCmdLine = space+1;
 302         }
 303         else
 304         {
 305             FIXME("Unhandled HTML Help command line parameter! (%.*s)\n", space-szCmdLine, szCmdLine);
 306             return 0;
 307         }
 308     }
 309
 310     /* FIXME: Check szCmdLine for bad arguments */
 311     if (*szCmdLine == '\"')
 312         endq = strchr(++szCmdLine, '\"');
 313
 314     if (endq)
 315         len = endq - szCmdLine;
 316     else
 317         len = strlen(szCmdLine);
 318     buflen = MultiByteToWideChar(CP_ACP, 0, szCmdLine, len, NULL, 0) + 1;
 319     filename = heap_alloc(buflen * sizeof(WCHAR));
 320     MultiByteToWideChar(CP_ACP, 0, szCmdLine, len, filename, buflen);
 321     filename[buflen-1] = 0;
 322
 323     /* Open a specific help topic */
 324     if(mapid != -1)
 325         HtmlHelpW(GetDesktopWindow(), filename, HH_HELP_CONTEXT, mapid);
 326     else
 327         HtmlHelpW(GetDesktopWindow(), filename, HH_DISPLAY_TOPIC, 0);
 328
 329     heap_free(filename);
 330
 331     while (GetMessageW(&msg, 0, 0, 0))
 332     {
 333         TranslateMessage(&msg);
 334         DispatchMessageW(&msg);
 335     }
 336
 337     return 0;
 338 }
 339
 340 /******************************************************************
 341  *              DllGetClassObject (HHCTRL.OCX.@)
 342  */
 343 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 344 {
 345     FIXME("(%s %s %p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 346     return CLASS_E_CLASSNOTAVAILABLE;
 347 }