git.oblomov.eu Git - wine/blob - programs/winhlp32/winhelp.c

   1 /*
   2  * Help Viewer
   3  *
   4  * Copyright    1996 Ulrich Schmid <uschmid@mail.hh.provi.de>
   5  *              2002 Sylvain Petreolle <spetreolle@yahoo.fr>
   6  *              2002, 2008 Eric Pouech <eric.pouech@wanadoo.fr>
   7  *              2004 Ken Belleau <jamez@ivic.qc.ca>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #include <assert.h>
  25 #include <stdio.h>
  26 #include <string.h>
  27 #include <stdarg.h>
  28 #include <stdlib.h>
  29
  30 #define NONAMELESSUNION
  31 #define NONAMELESSSTRUCT
  32
  33 #include "windef.h"
  34 #include "winbase.h"
  35 #include "wingdi.h"
  36 #include "winuser.h"
  37 #include "commdlg.h"
  38 #include "winhelp.h"
  39 #include "winhelp_res.h"
  40 #include "shellapi.h"
  41 #include "richedit.h"
  42 #include "commctrl.h"
  43
  44 #include "wine/debug.h"
  45
  46 WINE_DEFAULT_DEBUG_CHANNEL(winhelp);
  47
  48 static BOOL    WINHELP_RegisterWinClasses(void);
  49 static LRESULT CALLBACK WINHELP_MainWndProc(HWND, UINT, WPARAM, LPARAM);
  50 static LRESULT CALLBACK WINHELP_ButtonBoxWndProc(HWND, UINT, WPARAM, LPARAM);
  51 static LRESULT CALLBACK WINHELP_ButtonWndProc(HWND, UINT, WPARAM, LPARAM);
  52 static LRESULT CALLBACK WINHELP_HistoryWndProc(HWND, UINT, WPARAM, LPARAM);
  53 static LRESULT CALLBACK WINHELP_ShadowWndProc(HWND, UINT, WPARAM, LPARAM);
  54 static BOOL    WINHELP_CheckPopup(HWND, UINT, WPARAM, LPARAM, LRESULT*);
  55 static void    WINHELP_InitFonts(HWND hWnd);
  56 static void    WINHELP_DeleteWindow(WINHELP_WINDOW*);
  57 static void    WINHELP_DeleteButtons(WINHELP_WINDOW*);
  58 static void    WINHELP_SetupText(HWND hWnd, WINHELP_WINDOW *win, ULONG relative);
  59 static void    WINHELP_DeletePageLinks(HLPFILE_PAGE* page);
  60
  61 WINHELP_GLOBALS Globals = {3, NULL, TRUE, NULL, NULL, NULL, NULL, NULL, {{{NULL,NULL}},0}};
  62
  63 #define CTL_ID_BUTTON   0x700
  64 #define CTL_ID_TEXT     0x701
  65
  66 /***********************************************************************
  67  *
  68  *           WINHELP_GetOpenFileName
  69  */
  70 BOOL WINHELP_GetOpenFileName(LPSTR lpszFile, int len)
  71 {
  72     OPENFILENAME openfilename;
  73     CHAR szDir[MAX_PATH];
  74     CHAR szzFilter[2 * MAX_STRING_LEN + 100];
  75     LPSTR p = szzFilter;
  76
  77     WINE_TRACE("()\n");
  78
  79     LoadString(Globals.hInstance, STID_HELP_FILES_HLP, p, MAX_STRING_LEN);
  80     p += strlen(p) + 1;
  81     lstrcpy(p, "*.hlp");
  82     p += strlen(p) + 1;
  83     LoadString(Globals.hInstance, STID_ALL_FILES, p, MAX_STRING_LEN);
  84     p += strlen(p) + 1;
  85     lstrcpy(p, "*.*");
  86     p += strlen(p) + 1;
  87     *p = '\0';
  88
  89     GetCurrentDirectory(sizeof(szDir), szDir);
  90
  91     lpszFile[0]='\0';
  92
  93     openfilename.lStructSize       = sizeof(OPENFILENAME);
  94     openfilename.hwndOwner         = NULL;
  95     openfilename.hInstance         = Globals.hInstance;
  96     openfilename.lpstrFilter       = szzFilter;
  97     openfilename.lpstrCustomFilter = 0;
  98     openfilename.nMaxCustFilter    = 0;
  99     openfilename.nFilterIndex      = 1;
 100     openfilename.lpstrFile         = lpszFile;
 101     openfilename.nMaxFile          = len;
 102     openfilename.lpstrFileTitle    = 0;
 103     openfilename.nMaxFileTitle     = 0;
 104     openfilename.lpstrInitialDir   = szDir;
 105     openfilename.lpstrTitle        = 0;
 106     openfilename.Flags             = 0;
 107     openfilename.nFileOffset       = 0;
 108     openfilename.nFileExtension    = 0;
 109     openfilename.lpstrDefExt       = 0;
 110     openfilename.lCustData         = 0;
 111     openfilename.lpfnHook          = 0;
 112     openfilename.lpTemplateName    = 0;
 113
 114     return GetOpenFileName(&openfilename);
 115 }
 116
 117 static char* WINHELP_GetCaption(WINHELP_WNDPAGE* wpage)
 118 {
 119     if (wpage->wininfo->caption[0]) return wpage->wininfo->caption;
 120     return wpage->page->file->lpszTitle;
 121 }
 122
 123 /***********************************************************************
 124  *
 125  *           WINHELP_LookupHelpFile
 126  */
 127 HLPFILE* WINHELP_LookupHelpFile(LPCSTR lpszFile)
 128 {
 129     HLPFILE*        hlpfile;
 130     char szFullName[MAX_PATH];
 131     char szAddPath[MAX_PATH];
 132     char *p;
 133
 134     /*
 135      * NOTE: This is needed by popup windows only.
 136      * In other cases it's not needed but does not hurt though.
 137      */
 138     if (Globals.active_win && Globals.active_win->page && Globals.active_win->page->file)
 139     {
 140         strcpy(szAddPath, Globals.active_win->page->file->lpszPath);
 141         p = strrchr(szAddPath, '\\');
 142         if (p) *p = 0;
 143     }
 144
 145     /*
 146      * FIXME: Should we swap conditions?
 147      */
 148     if (!SearchPath(NULL, lpszFile, ".hlp", MAX_PATH, szFullName, NULL) &&
 149         !SearchPath(szAddPath, lpszFile, ".hlp", MAX_PATH, szFullName, NULL))
 150     {
 151         if (WINHELP_MessageBoxIDS_s(STID_FILE_NOT_FOUND_s, lpszFile, STID_WHERROR,
 152                                     MB_YESNO|MB_ICONQUESTION) != IDYES)
 153             return NULL;
 154         if (!WINHELP_GetOpenFileName(szFullName, MAX_PATH))
 155             return NULL;
 156     }
 157     hlpfile = HLPFILE_ReadHlpFile(szFullName);
 158     if (!hlpfile)
 159         WINHELP_MessageBoxIDS_s(STID_HLPFILE_ERROR_s, lpszFile,
 160                                 STID_WHERROR, MB_OK|MB_ICONSTOP);
 161     return hlpfile;
 162 }
 163
 164 /******************************************************************
 165  *              WINHELP_GetWindowInfo
 166  *
 167  *
 168  */
 169 HLPFILE_WINDOWINFO*     WINHELP_GetWindowInfo(HLPFILE* hlpfile, LPCSTR name)
 170 {
 171     static      HLPFILE_WINDOWINFO      mwi;
 172     unsigned int     i;
 173
 174     if (!name || !name[0])
 175         name = Globals.active_win->lpszName;
 176
 177     if (hlpfile)
 178         for (i = 0; i < hlpfile->numWindows; i++)
 179             if (!strcmp(hlpfile->windows[i].name, name))
 180                 return &hlpfile->windows[i];
 181
 182     if (strcmp(name, "main") != 0)
 183     {
 184         WINE_FIXME("Couldn't find window info for %s\n", name);
 185         assert(0);
 186         return NULL;
 187     }
 188     if (!mwi.name[0])
 189     {
 190         strcpy(mwi.type, "primary");
 191         strcpy(mwi.name, "main");
 192         if (!LoadString(Globals.hInstance, STID_WINE_HELP,
 193                         mwi.caption, sizeof(mwi.caption)))
 194             strcpy(mwi.caption, hlpfile->lpszTitle);
 195         mwi.origin.x = mwi.origin.y = mwi.size.cx = mwi.size.cy = CW_USEDEFAULT;
 196         mwi.style = SW_SHOW;
 197         mwi.win_style = WS_OVERLAPPEDWINDOW;
 198         mwi.sr_color = mwi.sr_color = 0xFFFFFF;
 199     }
 200     return &mwi;
 201 }
 202
 203 /******************************************************************
 204  *              HLPFILE_GetPopupWindowInfo
 205  *
 206  *
 207  */
 208 static HLPFILE_WINDOWINFO*     WINHELP_GetPopupWindowInfo(HLPFILE* hlpfile,
 209                                                           WINHELP_WINDOW* parent, LPARAM mouse)
 210 {
 211     static      HLPFILE_WINDOWINFO      wi;
 212
 213     RECT parent_rect;
 214
 215     wi.type[0] = wi.name[0] = wi.caption[0] = '\0';
 216
 217     /* Calculate horizontal size and position of a popup window */
 218     GetWindowRect(parent->hMainWnd, &parent_rect);
 219     wi.size.cx = (parent_rect.right  - parent_rect.left) / 2;
 220     wi.size.cy = 10; /* need a non null value, so that border are taken into account while computing */
 221
 222     wi.origin.x = (short)LOWORD(mouse);
 223     wi.origin.y = (short)HIWORD(mouse);
 224     ClientToScreen(parent->hMainWnd, &wi.origin);
 225     wi.origin.x -= wi.size.cx / 2;
 226     wi.origin.x  = min(wi.origin.x, GetSystemMetrics(SM_CXSCREEN) - wi.size.cx);
 227     wi.origin.x  = max(wi.origin.x, 0);
 228
 229     wi.style = SW_SHOW;
 230     wi.win_style = WS_POPUP | WS_BORDER;
 231     wi.sr_color = parent->info->sr_color;
 232     wi.nsr_color = 0xFFFFFF;
 233
 234     return &wi;
 235 }
 236
 237 /***********************************************************************
 238  *
 239  *           WinMain
 240  */
 241 int PASCAL WinMain(HINSTANCE hInstance, HINSTANCE prev, LPSTR cmdline, int show)
 242 {
 243     MSG                 msg;
 244     LONG                lHash = 0;
 245     HLPFILE*            hlpfile;
 246     static CHAR         default_wndname[] = "main";
 247     LPSTR               wndname = default_wndname;
 248     WINHELP_DLL*        dll;
 249
 250     Globals.hInstance = hInstance;
 251
 252     if (LoadLibrary("riched20.dll") == NULL)
 253         return MessageBox(0, MAKEINTRESOURCE(STID_NO_RICHEDIT),
 254                           MAKEINTRESOURCE(STID_WHERROR), MB_OK);
 255
 256     /* Get options */
 257     while (*cmdline && (*cmdline == ' ' || *cmdline == '-'))
 258     {
 259         CHAR   option;
 260         LPCSTR topic_id;
 261         if (*cmdline++ == ' ') continue;
 262
 263         option = *cmdline;
 264         if (option) cmdline++;
 265         while (*cmdline && *cmdline == ' ') cmdline++;
 266         switch (option)
 267         {
 268         case 'i':
 269         case 'I':
 270             topic_id = cmdline;
 271             while (*cmdline && *cmdline != ' ') cmdline++;
 272             if (*cmdline) *cmdline++ = '\0';
 273             lHash = HLPFILE_Hash(topic_id);
 274             break;
 275
 276         case '3':
 277         case '4':
 278             Globals.wVersion = option - '0';
 279             break;
 280
 281         case 'x':
 282             show = SW_HIDE;
 283             Globals.isBook = FALSE;
 284             break;
 285
 286         default:
 287             WINE_FIXME("Unsupported cmd line: %s\n", cmdline);
 288             break;
 289         }
 290     }
 291
 292     /* Create primary window */
 293     if (!WINHELP_RegisterWinClasses())
 294     {
 295         WINE_FIXME("Couldn't register classes\n");
 296         return 0;
 297     }
 298
 299     if (*cmdline)
 300     {
 301         char*   ptr;
 302         if ((*cmdline == '"') && (ptr = strchr(cmdline+1, '"')))
 303         {
 304             cmdline++;
 305             *ptr = '\0';
 306         }
 307         if ((ptr = strchr(cmdline, '>')))
 308         {
 309             *ptr = '\0';
 310             wndname = ptr + 1;
 311         }
 312         hlpfile = WINHELP_LookupHelpFile(cmdline);
 313         if (!hlpfile) return 0;
 314     }
 315     else hlpfile = NULL;
 316     WINHELP_OpenHelpWindow(HLPFILE_PageByHash, hlpfile, lHash,
 317                            WINHELP_GetWindowInfo(hlpfile, wndname), show);
 318
 319     /* Message loop */
 320     while (GetMessage(&msg, 0, 0, 0))
 321     {
 322         TranslateMessage(&msg);
 323         DispatchMessage(&msg);
 324     }
 325     for (dll = Globals.dlls; dll; dll = dll->next)
 326     {
 327         if (dll->class & DC_INITTERM) dll->handler(DW_TERM, 0, 0);
 328     }
 329     return 0;
 330 }
 331
 332 /***********************************************************************
 333  *
 334  *           RegisterWinClasses
 335  */
 336 static BOOL WINHELP_RegisterWinClasses(void)
 337 {
 338     WNDCLASS class_main, class_button_box, class_shadow, class_history;
 339
 340     class_main.style               = CS_HREDRAW | CS_VREDRAW;
 341     class_main.lpfnWndProc         = WINHELP_MainWndProc;
 342     class_main.cbClsExtra          = 0;
 343     class_main.cbWndExtra          = sizeof(LONG);
 344     class_main.hInstance           = Globals.hInstance;
 345     class_main.hIcon               = LoadIcon(Globals.hInstance, MAKEINTRESOURCE(IDI_WINHELP));
 346     class_main.hCursor             = LoadCursor(0, IDC_ARROW);
 347     class_main.hbrBackground       = (HBRUSH)(COLOR_WINDOW+1);
 348     class_main.lpszMenuName        = 0;
 349     class_main.lpszClassName       = MAIN_WIN_CLASS_NAME;
 350
 351     class_button_box               = class_main;
 352     class_button_box.lpfnWndProc   = WINHELP_ButtonBoxWndProc;
 353     class_button_box.cbWndExtra    = 0;
 354     class_button_box.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1);
 355     class_button_box.lpszClassName = BUTTON_BOX_WIN_CLASS_NAME;
 356
 357     class_shadow                   = class_main;
 358     class_shadow.lpfnWndProc       = WINHELP_ShadowWndProc;
 359     class_shadow.cbWndExtra        = 0;
 360     class_shadow.hbrBackground     = (HBRUSH)(COLOR_3DDKSHADOW+1);
 361     class_shadow.lpszClassName     = SHADOW_WIN_CLASS_NAME;
 362
 363     class_history                  = class_main;
 364     class_history.lpfnWndProc      = WINHELP_HistoryWndProc;
 365     class_history.lpszClassName    = HISTORY_WIN_CLASS_NAME;
 366
 367     return (RegisterClass(&class_main) &&
 368             RegisterClass(&class_button_box) &&
 369             RegisterClass(&class_shadow) &&
 370             RegisterClass(&class_history));
 371 }
 372
 373 typedef struct
 374 {
 375     WORD size;
 376     WORD command;
 377     LONG data;
 378     LONG reserved;
 379     WORD ofsFilename;
 380     WORD ofsData;
 381 } WINHELP,*LPWINHELP;
 382
 383 static BOOL WINHELP_HasWorkingWindow(void)
 384 {
 385     if (!Globals.active_win) return FALSE;
 386     if (Globals.active_win->next || Globals.win_list != Globals.active_win) return TRUE;
 387     return Globals.active_win->page != NULL && Globals.active_win->page->file != NULL;
 388 }
 389
 390 /******************************************************************
 391  *              WINHELP_HandleCommand
 392  *
 393  *
 394  */
 395 static LRESULT  WINHELP_HandleCommand(HWND hSrcWnd, LPARAM lParam)
 396 {
 397     COPYDATASTRUCT*     cds = (COPYDATASTRUCT*)lParam;
 398     WINHELP*            wh;
 399
 400     if (cds->dwData != 0xA1DE505)
 401     {
 402         WINE_FIXME("Wrong magic number (%08lx)\n", cds->dwData);
 403         return 0;
 404     }
 405
 406     wh = (WINHELP*)cds->lpData;
 407
 408     if (wh)
 409     {
 410         char*   ptr = (wh->ofsFilename) ? (LPSTR)wh + wh->ofsFilename : NULL;
 411
 412         WINE_TRACE("Got[%u]: cmd=%u data=%08x fn=%s\n",
 413                    wh->size, wh->command, wh->data, ptr);
 414         switch (wh->command)
 415         {
 416         case HELP_CONTEXT:
 417             if (ptr)
 418             {
 419                 MACRO_JumpContext(ptr, "main", wh->data);
 420             }
 421             if (!WINHELP_HasWorkingWindow()) MACRO_Exit();
 422             break;
 423         case HELP_QUIT:
 424             MACRO_Exit();
 425             break;
 426         case HELP_CONTENTS:
 427             if (ptr)
 428             {
 429                 MACRO_JumpContents(ptr, "main");
 430             }
 431             if (!WINHELP_HasWorkingWindow()) MACRO_Exit();
 432             break;
 433         case HELP_HELPONHELP:
 434             MACRO_HelpOn();
 435             if (!WINHELP_HasWorkingWindow()) MACRO_Exit();
 436             break;
 437         /* case HELP_SETINDEX: */
 438         case HELP_SETCONTENTS:
 439             if (ptr)
 440             {
 441                 MACRO_SetContents(ptr, wh->data);
 442             }
 443             break;
 444         case HELP_CONTEXTPOPUP:
 445             if (ptr)
 446             {
 447                 MACRO_PopupContext(ptr, wh->data);
 448             }
 449             break;
 450         /* case HELP_FORCEFILE:*/
 451         /* case HELP_CONTEXTMENU: */
 452         case HELP_FINDER:
 453             /* in fact, should be the topic dialog box */
 454             WINE_FIXME("HELP_FINDER: stub\n");
 455             if (ptr)
 456             {
 457                 MACRO_JumpHash(ptr, "main", 0);
 458             }
 459             break;
 460         /* case HELP_WM_HELP: */
 461         /* case HELP_SETPOPUP_POS: */
 462         /* case HELP_KEY: */
 463         /* case HELP_COMMAND: */
 464         /* case HELP_PARTIALKEY: */
 465         /* case HELP_MULTIKEY: */
 466         /* case HELP_SETWINPOS: */
 467         default:
 468             WINE_FIXME("Unhandled command (%x) for remote winhelp control\n", wh->command);
 469             break;
 470         }
 471     }
 472     /* Always return success for now */
 473     return 1;
 474 }
 475
 476 void            WINHELP_LayoutMainWindow(WINHELP_WINDOW* win)
 477 {
 478     RECT        rect, button_box_rect;
 479     INT         text_top = 0;
 480     HWND        hButtonBoxWnd = GetDlgItem(win->hMainWnd, CTL_ID_BUTTON);
 481     HWND        hTextWnd = GetDlgItem(win->hMainWnd, CTL_ID_TEXT);
 482
 483     GetClientRect(win->hMainWnd, &rect);
 484
 485     /* Update button box and text Window */
 486     SetWindowPos(hButtonBoxWnd, HWND_TOP,
 487                  rect.left, rect.top,
 488                  rect.right - rect.left,
 489                  rect.bottom - rect.top, 0);
 490
 491     if (GetWindowRect(hButtonBoxWnd, &button_box_rect))
 492         text_top = rect.top + button_box_rect.bottom - button_box_rect.top;
 493
 494     SetWindowPos(hTextWnd, HWND_TOP,
 495                  rect.left, text_top,
 496                  rect.right - rect.left,
 497                  rect.bottom - text_top, 0);
 498
 499 }
 500
 501 static void     WINHELP_RememberPage(WINHELP_WINDOW* win, WINHELP_WNDPAGE* wpage)
 502 {
 503     unsigned        num;
 504
 505     if (!Globals.history.index || Globals.history.set[0].page != wpage->page)
 506     {
 507         num = sizeof(Globals.history.set) / sizeof(Globals.history.set[0]);
 508         /* we're full, remove latest entry */
 509         if (Globals.history.index == num)
 510         {
 511             HLPFILE_FreeHlpFile(Globals.history.set[num - 1].page->file);
 512             Globals.history.index--;
 513         }
 514         memmove(&Globals.history.set[1], &Globals.history.set[0],
 515                 Globals.history.index * sizeof(Globals.history.set[0]));
 516         Globals.history.set[0] = *wpage;
 517         Globals.history.index++;
 518         wpage->page->file->wRefCount++;
 519     }
 520     if (win->hHistoryWnd) InvalidateRect(win->hHistoryWnd, NULL, TRUE);
 521
 522     num = sizeof(win->back.set) / sizeof(win->back.set[0]);
 523     if (win->back.index == num)
 524     {
 525         /* we're full, remove latest entry */
 526         HLPFILE_FreeHlpFile(win->back.set[0].page->file);
 527         memmove(&win->back.set[0], &win->back.set[1],
 528                 (num - 1) * sizeof(win->back.set[0]));
 529         win->back.index--;
 530     }
 531     win->back.set[win->back.index++] = *wpage;
 532     wpage->page->file->wRefCount++;
 533 }
 534
 535 /***********************************************************************
 536  *
 537  *           WINHELP_CreateHelpWindow
 538  */
 539 BOOL WINHELP_CreateHelpWindow(WINHELP_WNDPAGE* wpage, int nCmdShow, BOOL remember)
 540 {
 541     WINHELP_WINDOW*     win = NULL;
 542     BOOL                bPrimary, bPopup, bReUsed = FALSE;
 543     LPSTR               name;
 544     HICON               hIcon;
 545     HWND                hTextWnd = NULL;
 546
 547     bPrimary = !lstrcmpi(wpage->wininfo->name, "main");
 548     bPopup = !bPrimary && (wpage->wininfo->win_style & WS_POPUP);
 549
 550     if (!bPopup)
 551     {
 552         for (win = Globals.win_list; win; win = win->next)
 553         {
 554             if (!lstrcmpi(win->lpszName, wpage->wininfo->name))
 555             {
 556                 POINT   pt = {0, 0};
 557                 SIZE    sz = {0, 0};
 558                 DWORD   flags = SWP_NOSIZE | SWP_NOMOVE;
 559
 560                 WINHELP_DeleteButtons(win);
 561                 bReUsed = TRUE;
 562                 SetWindowText(win->hMainWnd, WINHELP_GetCaption(wpage));
 563                 if (wpage->wininfo->origin.x != CW_USEDEFAULT &&
 564                     wpage->wininfo->origin.y != CW_USEDEFAULT)
 565                 {
 566                     pt = wpage->wininfo->origin;
 567                     flags &= ~SWP_NOSIZE;
 568                 }
 569                 if (wpage->wininfo->size.cx != CW_USEDEFAULT &&
 570                     wpage->wininfo->size.cy != CW_USEDEFAULT)
 571                 {
 572                     sz = wpage->wininfo->size;
 573                     flags &= ~SWP_NOMOVE;
 574                 }
 575                 SetWindowPos(win->hMainWnd, HWND_TOP, pt.x, pt.y, sz.cx, sz.cy, flags);
 576
 577                 if (wpage->page && win->page && wpage->page->file != win->page->file)
 578                     WINHELP_DeleteBackSet(win);
 579                 WINHELP_InitFonts(win->hMainWnd);
 580
 581                 win->page = wpage->page;
 582                 win->info = wpage->wininfo;
 583                 hTextWnd = GetDlgItem(win->hMainWnd, CTL_ID_TEXT);
 584                 WINHELP_SetupText(hTextWnd, win, wpage->relative);
 585
 586                 InvalidateRect(win->hMainWnd, NULL, TRUE);
 587                 if (win->hHistoryWnd) InvalidateRect(win->hHistoryWnd, NULL, TRUE);
 588
 589                 break;
 590             }
 591         }
 592     }
 593
 594     if (!win)
 595     {
 596         /* Initialize WINHELP_WINDOW struct */
 597         win = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 598                         sizeof(WINHELP_WINDOW) + strlen(wpage->wininfo->name) + 1);
 599         if (!win) return FALSE;
 600         win->next = Globals.win_list;
 601         Globals.win_list = win;
 602
 603         name = (char*)win + sizeof(WINHELP_WINDOW);
 604         lstrcpy(name, wpage->wininfo->name);
 605         win->lpszName = name;
 606         win->hHandCur = LoadCursorW(0, (LPWSTR)IDC_HAND);
 607         win->back.index = 0;
 608         win->font_scale = 1;
 609     }
 610     win->page = wpage->page;
 611     win->info = wpage->wininfo;
 612
 613     if (!bPopup && wpage->page && remember)
 614     {
 615         WINHELP_RememberPage(win, wpage);
 616     }
 617
 618     if (bPopup)
 619         Globals.active_popup = win;
 620     else
 621         Globals.active_win = win;
 622
 623     /* Initialize default pushbuttons */
 624     if (bPrimary && wpage->page)
 625     {
 626         CHAR    buffer[MAX_STRING_LEN];
 627
 628         LoadString(Globals.hInstance, STID_CONTENTS, buffer, sizeof(buffer));
 629         MACRO_CreateButton("BTN_CONTENTS", buffer, "Contents()");
 630         LoadString(Globals.hInstance, STID_SEARCH,buffer, sizeof(buffer));
 631         MACRO_CreateButton("BTN_SEARCH", buffer, "Search()");
 632         LoadString(Globals.hInstance, STID_BACK, buffer, sizeof(buffer));
 633         MACRO_CreateButton("BTN_BACK", buffer, "Back()");
 634         if (win->back.index <= 1) MACRO_DisableButton("BTN_BACK");
 635         LoadString(Globals.hInstance, STID_TOPICS, buffer, sizeof(buffer));
 636         MACRO_CreateButton("BTN_TOPICS", buffer, "Finder()");
 637     }
 638
 639     if (!bReUsed)
 640     {
 641         win->hMainWnd = CreateWindowEx((bPopup) ? WS_EX_TOOLWINDOW : 0, MAIN_WIN_CLASS_NAME,
 642                                        WINHELP_GetCaption(wpage),
 643                                        bPrimary ? WS_OVERLAPPEDWINDOW : wpage->wininfo->win_style,
 644                                        wpage->wininfo->origin.x, wpage->wininfo->origin.y,
 645                                        wpage->wininfo->size.cx, wpage->wininfo->size.cy,
 646                                        bPopup ? Globals.active_win->hMainWnd : NULL,
 647                                        bPrimary ? LoadMenu(Globals.hInstance, MAKEINTRESOURCE(MAIN_MENU)) : 0,
 648                                        Globals.hInstance, win);
 649         if (!bPopup)
 650             /* Create button box and text Window */
 651             CreateWindow(BUTTON_BOX_WIN_CLASS_NAME, "", WS_CHILD | WS_VISIBLE,
 652                          0, 0, 0, 0, win->hMainWnd, (HMENU)CTL_ID_BUTTON, Globals.hInstance, NULL);
 653
 654         hTextWnd = CreateWindow(RICHEDIT_CLASS, NULL,
 655                                 ES_MULTILINE | ES_READONLY | WS_CHILD | WS_HSCROLL | WS_VSCROLL | WS_VISIBLE,
 656                                 0, 0, 0, 0, win->hMainWnd, (HMENU)CTL_ID_TEXT, Globals.hInstance, NULL);
 657         SendMessage(hTextWnd, EM_SETEVENTMASK, 0,
 658                     SendMessage(hTextWnd, EM_GETEVENTMASK, 0, 0) | ENM_MOUSEEVENTS);
 659     }
 660
 661     hIcon = (wpage->page) ? wpage->page->file->hIcon : NULL;
 662     if (!hIcon) hIcon = LoadIcon(Globals.hInstance, MAKEINTRESOURCE(IDI_WINHELP));
 663     SendMessage(win->hMainWnd, WM_SETICON, ICON_SMALL, (DWORD_PTR)hIcon);
 664
 665     /* Initialize file specific pushbuttons */
 666     if (!(wpage->wininfo->win_style & WS_POPUP) && wpage->page)
 667     {
 668         HLPFILE_MACRO  *macro;
 669         for (macro = wpage->page->file->first_macro; macro; macro = macro->next)
 670             MACRO_ExecuteMacro(macro->lpszMacro);
 671
 672         for (macro = wpage->page->first_macro; macro; macro = macro->next)
 673             MACRO_ExecuteMacro(macro->lpszMacro);
 674     }
 675
 676     if (bPopup)
 677     {
 678         DWORD   mask = SendMessage(hTextWnd, EM_GETEVENTMASK, 0, 0);
 679         RECT    rect;
 680
 681         win->font_scale = Globals.active_win->font_scale;
 682         WINHELP_SetupText(hTextWnd, win, wpage->relative);
 683
 684         /* we need the window to be shown for richedit to compute the size */
 685         ShowWindow(win->hMainWnd, nCmdShow);
 686         SendMessage(hTextWnd, EM_SETEVENTMASK, 0, mask | ENM_REQUESTRESIZE);
 687         SendMessage(hTextWnd, EM_REQUESTRESIZE, 0, 0);
 688         SendMessage(hTextWnd, EM_SETEVENTMASK, 0, mask);
 689
 690         GetWindowRect(win->hMainWnd, &rect);
 691         win->hShadowWnd = CreateWindowEx(WS_EX_TOOLWINDOW, SHADOW_WIN_CLASS_NAME,
 692                                          "", WS_POPUP | WS_VISIBLE,
 693                                          rect.left + SHADOW_DX, rect.top + SHADOW_DY,
 694                                          rect.right - rect.left,
 695                                          rect.bottom - rect.top,
 696                                          Globals.active_win->hMainWnd, 0,
 697                                          Globals.hInstance, NULL);
 698         SetWindowPos(win->hMainWnd, win->hShadowWnd, 0, 0, 0, 0,
 699                      SWP_NOSIZE | SWP_NOMOVE);
 700     }
 701     else
 702     {
 703         WINHELP_SetupText(hTextWnd, win, wpage->relative);
 704         WINHELP_LayoutMainWindow(win);
 705         ShowWindow(win->hMainWnd, nCmdShow);
 706     }
 707
 708     return TRUE;
 709 }
 710
 711 /******************************************************************
 712  *             WINHELP_OpenHelpWindow
 713  * Main function to search for a page and display it in a window
 714  */
 715 BOOL WINHELP_OpenHelpWindow(HLPFILE_PAGE* (*lookup)(HLPFILE*, LONG, ULONG*),
 716                             HLPFILE* hlpfile, LONG val, HLPFILE_WINDOWINFO* wi,
 717                             int nCmdShow)
 718 {
 719     WINHELP_WNDPAGE     wpage;
 720
 721     wpage.page = lookup(hlpfile, val, &wpage.relative);
 722     if (wpage.page) wpage.page->file->wRefCount++;
 723     wpage.wininfo = wi;
 724     return WINHELP_CreateHelpWindow(&wpage, nCmdShow, TRUE);
 725 }
 726
 727 /***********************************************************************
 728  *
 729  *           WINHELP_FindLink
 730  */
 731 static HLPFILE_LINK* WINHELP_FindLink(WINHELP_WINDOW* win, LPARAM pos)
 732 {
 733     HLPFILE_LINK*           link;
 734     POINTL                  mouse_ptl, char_ptl, char_next_ptl;
 735     DWORD                   cp;
 736
 737     if (!win->page) return NULL;
 738
 739     mouse_ptl.x = (short)LOWORD(pos);
 740     mouse_ptl.y = (short)HIWORD(pos);
 741     cp = SendMessageW(GetDlgItem(win->hMainWnd, CTL_ID_TEXT), EM_CHARFROMPOS,
 742                       0, (LPARAM)&mouse_ptl);
 743
 744     for (link = win->page->first_link; link; link = link->next)
 745     {
 746         if (link->cpMin <= cp && cp <= link->cpMax)
 747         {
 748             /* check whether we're at end of line */
 749             SendMessageW(GetDlgItem(win->hMainWnd, CTL_ID_TEXT), EM_POSFROMCHAR,
 750                          (LPARAM)&char_ptl, cp);
 751             SendMessageW(GetDlgItem(win->hMainWnd, CTL_ID_TEXT), EM_POSFROMCHAR,
 752                          (LPARAM)&char_next_ptl, cp + 1);
 753             if (char_next_ptl.y != char_ptl.y || mouse_ptl.x >= char_next_ptl.x)
 754                 link = NULL;
 755             break;
 756         }
 757     }
 758     return link;
 759 }
 760
 761 /******************************************************************
 762  *             WINHELP_HandleTextMouse
 763  *
 764  */
 765 static BOOL WINHELP_HandleTextMouse(WINHELP_WINDOW* win, UINT msg, LPARAM lParam)
 766 {
 767     HLPFILE*                hlpfile;
 768     HLPFILE_LINK*           link;
 769     BOOL                    ret = FALSE;
 770
 771     switch (msg)
 772     {
 773     case WM_MOUSEMOVE:
 774         if (WINHELP_FindLink(win, lParam))
 775             SetCursor(win->hHandCur);
 776         else
 777             SetCursor(LoadCursor(0, IDC_ARROW));
 778         break;
 779
 780      case WM_LBUTTONDOWN:
 781          if ((win->current_link = WINHELP_FindLink(win, lParam)))
 782              ret = TRUE;
 783          break;
 784
 785     case WM_LBUTTONUP:
 786         if ((link = WINHELP_FindLink(win, lParam)) && link == win->current_link)
 787         {
 788             HLPFILE_WINDOWINFO*     wi;
 789
 790             switch (link->cookie)
 791             {
 792             case hlp_link_link:
 793                 if ((hlpfile = WINHELP_LookupHelpFile(link->string)))
 794                 {
 795                     if (link->window == -1)
 796                         wi = win->info;
 797                     else if (link->window < hlpfile->numWindows)
 798                         wi = &hlpfile->windows[link->window];
 799                     else
 800                     {
 801                         WINE_WARN("link to window %d/%d\n", link->window, hlpfile->numWindows);
 802                         break;
 803                     }
 804                     WINHELP_OpenHelpWindow(HLPFILE_PageByHash, hlpfile, link->hash, wi, SW_NORMAL);
 805                 }
 806                 break;
 807             case hlp_link_popup:
 808                 if ((hlpfile = WINHELP_LookupHelpFile(link->string)))
 809                     WINHELP_OpenHelpWindow(HLPFILE_PageByHash, hlpfile, link->hash,
 810                                            WINHELP_GetPopupWindowInfo(hlpfile, win, lParam),
 811                                            SW_NORMAL);
 812                 break;
 813             case hlp_link_macro:
 814                 MACRO_ExecuteMacro(link->string);
 815                 break;
 816             default:
 817                 WINE_FIXME("Unknown link cookie %d\n", link->cookie);
 818             }
 819             ret = TRUE;
 820         }
 821         win->current_link = NULL;
 822         break;
 823     }
 824     return ret;
 825 }
 826
 827 /***********************************************************************
 828  *
 829  *           WINHELP_MainWndProc
 830  */
 831 static LRESULT CALLBACK WINHELP_MainWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 832 {
 833     WINHELP_WINDOW *win;
 834     WINHELP_BUTTON *button;
 835     RECT rect;
 836     INT  curPos, min, max, dy, keyDelta;
 837     HWND hTextWnd;
 838     LRESULT ret;
 839
 840     if (WINHELP_CheckPopup(hWnd, msg, wParam, lParam, &ret)) return ret;
 841
 842     switch (msg)
 843     {
 844     case WM_NCCREATE:
 845         win = (WINHELP_WINDOW*) ((LPCREATESTRUCT) lParam)->lpCreateParams;
 846         SetWindowLongPtr(hWnd, 0, (ULONG_PTR) win);
 847         if (!win->page && Globals.isBook)
 848             PostMessage(hWnd, WM_COMMAND, MNID_FILE_OPEN, 0);
 849         win->hMainWnd = hWnd;
 850         break;
 851
 852     case WM_WINDOWPOSCHANGED:
 853         WINHELP_LayoutMainWindow((WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0));
 854         break;
 855
 856     case WM_COMMAND:
 857         win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
 858         switch (wParam)
 859         {
 860             /* Menu FILE */
 861         case MNID_FILE_OPEN:    MACRO_FileOpen();       break;
 862         case MNID_FILE_PRINT:   MACRO_Print();          break;
 863         case MNID_FILE_SETUP:   MACRO_PrinterSetup();   break;
 864         case MNID_FILE_EXIT:    MACRO_Exit();           break;
 865
 866             /* Menu EDIT */
 867         case MNID_EDIT_COPYDLG:
 868             SendMessage(GetDlgItem(hWnd, CTL_ID_TEXT), WM_COPY, 0, 0);
 869             break;
 870         case MNID_EDIT_ANNOTATE:MACRO_Annotate();       break;
 871
 872             /* Menu Bookmark */
 873         case MNID_BKMK_DEFINE:  MACRO_BookmarkDefine(); break;
 874
 875             /* Menu Help */
 876         case MNID_HELP_HELPON:  MACRO_HelpOn();         break;
 877         case MNID_HELP_HELPTOP: MACRO_HelpOnTop();      break;
 878         case MNID_HELP_ABOUT:   MACRO_About();          break;
 879         case MNID_HELP_WINE:    ShellAbout(hWnd, "WINE", "Help", 0); break;
 880
 881             /* Context help */
 882         case MNID_CTXT_ANNOTATE:MACRO_Annotate();       break;
 883         case MNID_CTXT_COPY:    MACRO_CopyDialog();     break;
 884         case MNID_CTXT_PRINT:   MACRO_Print();          break;
 885         case MNID_OPTS_HISTORY: MACRO_History();        break;
 886         case MNID_OPTS_FONTS_SMALL:
 887         case MNID_CTXT_FONTS_SMALL:
 888             win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
 889             if (win->font_scale != 0)
 890             {
 891                 win->font_scale = 0;
 892                 WINHELP_SetupText(GetDlgItem(hWnd, CTL_ID_TEXT), win, 0 /* FIXME */);
 893             }
 894             break;
 895         case MNID_OPTS_FONTS_NORMAL:
 896         case MNID_CTXT_FONTS_NORMAL:
 897             win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
 898             if (win->font_scale != 1)
 899             {
 900                 win->font_scale = 1;
 901                 WINHELP_SetupText(GetDlgItem(hWnd, CTL_ID_TEXT), win, 0 /* FIXME */);
 902             }
 903             break;
 904         case MNID_OPTS_FONTS_LARGE:
 905         case MNID_CTXT_FONTS_LARGE:
 906             win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
 907             if (win->font_scale != 2)
 908             {
 909                 win->font_scale = 2;
 910                 WINHELP_SetupText(GetDlgItem(hWnd, CTL_ID_TEXT), win, 0 /* FIXME */);
 911             }
 912             break;
 913         case MNID_OPTS_HELP_DEFAULT:
 914         case MNID_OPTS_HELP_VISIBLE:
 915         case MNID_OPTS_HELP_NONVISIBLE:
 916         case MNID_OPTS_SYSTEM_COLORS:
 917         case MNID_CTXT_HELP_DEFAULT:
 918         case MNID_CTXT_HELP_VISIBLE:
 919         case MNID_CTXT_HELP_NONVISIBLE:
 920         case MNID_CTXT_SYSTEM_COLORS:
 921             /* FIXME: NIY */
 922
 923         default:
 924             /* Buttons */
 925             for (button = win->first_button; button; button = button->next)
 926                 if (wParam == button->wParam) break;
 927             if (button)
 928                 MACRO_ExecuteMacro(button->lpszMacro);
 929             else if (!HIWORD(wParam))
 930                 MessageBox(0, MAKEINTRESOURCE(STID_NOT_IMPLEMENTED),
 931                            MAKEINTRESOURCE(STID_WHERROR), MB_OK);
 932             break;
 933         }
 934         break;
 935 /* EPP     case WM_DESTROY: */
 936 /* EPP         if (Globals.hPopupWnd) DestroyWindow(Globals.hPopupWnd); */
 937 /* EPP         break; */
 938     case WM_COPYDATA:
 939         return WINHELP_HandleCommand((HWND)wParam, lParam);
 940
 941     case WM_CHAR:
 942         if (wParam == 3)
 943         {
 944             SendMessage(GetDlgItem(hWnd, CTL_ID_TEXT), WM_COPY, 0, 0);
 945             return 0;
 946         }
 947         break;
 948
 949     case WM_KEYDOWN:
 950         keyDelta = 0;
 951
 952         switch (wParam)
 953         {
 954         case VK_UP:
 955         case VK_DOWN:
 956             keyDelta = GetSystemMetrics(SM_CXVSCROLL);
 957             if (wParam == VK_UP)
 958                 keyDelta = -keyDelta;
 959
 960         case VK_PRIOR:
 961         case VK_NEXT:
 962             win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
 963             hTextWnd = GetDlgItem(win->hMainWnd, CTL_ID_TEXT);
 964             curPos = GetScrollPos(hTextWnd, SB_VERT);
 965             GetScrollRange(hTextWnd, SB_VERT, &min, &max);
 966
 967             if (keyDelta == 0)
 968             {
 969                 GetClientRect(hTextWnd, &rect);
 970                 keyDelta = (rect.bottom - rect.top) / 2;
 971                 if (wParam == VK_PRIOR)
 972                     keyDelta = -keyDelta;
 973             }
 974
 975             curPos += keyDelta;
 976             if (curPos > max)
 977                  curPos = max;
 978             else if (curPos < min)
 979                  curPos = min;
 980
 981             dy = GetScrollPos(hTextWnd, SB_VERT) - curPos;
 982             SetScrollPos(hTextWnd, SB_VERT, curPos, TRUE);
 983             ScrollWindow(hTextWnd, 0, dy, NULL, NULL);
 984             UpdateWindow(hTextWnd);
 985             return 0;
 986
 987         case VK_ESCAPE:
 988             MACRO_Exit();
 989             return 0;
 990         }
 991         break;
 992
 993     case WM_NOTIFY:
 994         if (wParam == CTL_ID_TEXT)
 995         {
 996             RECT        rc;
 997
 998             switch (((NMHDR*)lParam)->code)
 999             {
1000             case EN_MSGFILTER:
1001                 {
1002                     const MSGFILTER*    msgf = (const MSGFILTER*)lParam;
1003                     switch (msgf->msg)
1004                     {
1005                     case WM_KEYUP:
1006                         if (msgf->wParam == VK_ESCAPE) DestroyWindow(hWnd);
1007                         break;
1008                     case WM_RBUTTONDOWN:
1009                     {
1010                         HMENU       hMenu;
1011                         POINT       pt;
1012
1013                         win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
1014                         hMenu = LoadMenu(Globals.hInstance, (LPSTR)CONTEXT_MENU);
1015                         switch (win->font_scale)
1016                         {
1017                         case 0:
1018                             CheckMenuItem(hMenu, MNID_CTXT_FONTS_SMALL,
1019                                           MF_BYCOMMAND|MF_CHECKED);
1020                             break;
1021                         default:
1022                             WINE_FIXME("Unsupported %d\n", win->font_scale);
1023                         case 1:
1024                             CheckMenuItem(hMenu, MNID_CTXT_FONTS_NORMAL,
1025                                           MF_BYCOMMAND|MF_CHECKED);
1026                             break;
1027                         case 2:
1028                             CheckMenuItem(hMenu, MNID_CTXT_FONTS_LARGE,
1029                                           MF_BYCOMMAND|MF_CHECKED);
1030                             break;
1031                         }
1032                         pt.x = (int)(short)LOWORD(msgf->lParam);
1033                         pt.y = (int)(short)HIWORD(msgf->lParam);
1034                         ClientToScreen(msgf->nmhdr.hwndFrom, &pt);
1035                         TrackPopupMenu(GetSubMenu(hMenu, 0), TPM_LEFTALIGN|TPM_TOPALIGN,
1036                                        pt.x, pt.y, 0, hWnd, NULL);
1037                         DestroyMenu(hMenu);
1038                     }
1039                     break;
1040                     default:
1041                         return WINHELP_HandleTextMouse((WINHELP_WINDOW*)GetWindowLongPtr(hWnd, 0),
1042                                                        msgf->msg, msgf->lParam);
1043                     }
1044                 }
1045                 break;
1046
1047             case EN_REQUESTRESIZE:
1048                 rc = ((REQRESIZE*)lParam)->rc;
1049                 win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
1050                 AdjustWindowRect(&rc, GetWindowLong(win->hMainWnd, GWL_STYLE),
1051                                  FALSE);
1052                 SetWindowPos(win->hMainWnd, HWND_TOP, 0, 0,
1053                              rc.right - rc.left, rc.bottom - rc.top,
1054                              SWP_NOMOVE | SWP_NOZORDER);
1055                 WINHELP_LayoutMainWindow(win);
1056                 break;
1057             }
1058         }
1059         break;
1060
1061     case WM_INITMENUPOPUP:
1062         win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
1063         CheckMenuItem((HMENU)wParam, MNID_OPTS_FONTS_SMALL,
1064                       MF_BYCOMMAND | (win->font_scale == 0) ? MF_CHECKED : 0);
1065         CheckMenuItem((HMENU)wParam, MNID_OPTS_FONTS_NORMAL,
1066                       MF_BYCOMMAND | (win->font_scale == 1) ? MF_CHECKED : 0);
1067         CheckMenuItem((HMENU)wParam, MNID_OPTS_FONTS_LARGE,
1068                       MF_BYCOMMAND | (win->font_scale == 2) ? MF_CHECKED : 0);
1069         break;
1070
1071     case WM_NCDESTROY:
1072         {
1073             BOOL bExit;
1074             win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1075             bExit = (Globals.wVersion >= 4 && !lstrcmpi(win->lpszName, "main"));
1076             WINHELP_DeleteWindow(win);
1077
1078             if (bExit) MACRO_Exit();
1079             if (!Globals.win_list)
1080                 PostQuitMessage(0);
1081         }
1082         break;
1083     }
1084     return DefWindowProc(hWnd, msg, wParam, lParam);
1085 }
1086
1087 static DWORD CALLBACK WINHELP_RtfStreamIn(DWORD_PTR cookie, BYTE* buff,
1088                                           LONG cb, LONG* pcb)
1089 {
1090     struct RtfData*     rd = (struct RtfData*)cookie;
1091
1092     if (rd->where >= rd->ptr) return 1;
1093     if (rd->where + cb > rd->ptr)
1094         cb = rd->ptr - rd->where;
1095     memcpy(buff, rd->where, cb);
1096     rd->where += cb;
1097     *pcb = cb;
1098     return 0;
1099 }
1100
1101 static void WINHELP_SetupText(HWND hTextWnd, WINHELP_WINDOW* win, ULONG relative)
1102 {
1103     SendMessage(hTextWnd, WM_SETREDRAW, FALSE, 0);
1104     SendMessage(hTextWnd, EM_SETBKGNDCOLOR, 0, (LPARAM)win->info->sr_color);
1105     /* set word-wrap to window size (undocumented) */
1106     SendMessage(hTextWnd, EM_SETTARGETDEVICE, 0, 0);
1107     if (win->page)
1108     {
1109         struct RtfData  rd;
1110         EDITSTREAM      es;
1111         unsigned        cp = 0;
1112         POINTL          ptl;
1113         POINT           pt;
1114
1115
1116         if (HLPFILE_BrowsePage(win->page, &rd, win->font_scale, relative))
1117         {
1118             rd.where = rd.data;
1119             es.dwCookie = (DWORD_PTR)&rd;
1120             es.dwError = 0;
1121             es.pfnCallback = WINHELP_RtfStreamIn;
1122
1123             SendMessageW(hTextWnd, EM_STREAMIN, SF_RTF, (LPARAM)&es);
1124             cp = rd.char_pos_rel;
1125         }
1126         /* FIXME: else leaking potentially the rd.first_link chain */
1127         HeapFree(GetProcessHeap(), 0, rd.data);
1128         SendMessage(hTextWnd, EM_POSFROMCHAR, (WPARAM)&ptl, cp ? cp - 1 : 0);
1129         pt.x = 0; pt.y = ptl.y;
1130         SendMessage(hTextWnd, EM_SETSCROLLPOS, 0, (LPARAM)&pt);
1131     }
1132     else
1133     {
1134         SendMessage(hTextWnd, WM_SETTEXT, 0, (LPARAM)"");
1135     }
1136     SendMessage(hTextWnd, WM_SETREDRAW, TRUE, 0);
1137     InvalidateRect(hTextWnd, NULL, TRUE);
1138 }
1139
1140 /***********************************************************************
1141  *
1142  *           WINHELP_ButtonBoxWndProc
1143  */
1144 static LRESULT CALLBACK WINHELP_ButtonBoxWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1145 {
1146     WINDOWPOS      *winpos;
1147     WINHELP_WINDOW *win;
1148     WINHELP_BUTTON *button;
1149     SIZE button_size;
1150     INT  x, y;
1151
1152     if (WINHELP_CheckPopup(hWnd, msg, wParam, lParam, NULL)) return 0L;
1153
1154     switch (msg)
1155     {
1156     case WM_WINDOWPOSCHANGING:
1157         winpos = (WINDOWPOS*) lParam;
1158         win = (WINHELP_WINDOW*) GetWindowLongPtr(GetParent(hWnd), 0);
1159
1160         /* Update buttons */
1161         button_size.cx = 0;
1162         button_size.cy = 0;
1163         for (button = win->first_button; button; button = button->next)
1164         {
1165             HDC  hDc;
1166             SIZE textsize;
1167             if (!button->hWnd)
1168             {
1169                 button->hWnd = CreateWindow(STRING_BUTTON, button->lpszName,
1170                                             WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
1171                                             0, 0, 0, 0,
1172                                             hWnd, (HMENU) button->wParam,
1173                                             Globals.hInstance, 0);
1174                 if (button->hWnd) {
1175                     if (Globals.button_proc == NULL)
1176                         Globals.button_proc = (WNDPROC) GetWindowLongPtr(button->hWnd, GWLP_WNDPROC);
1177                     SetWindowLongPtr(button->hWnd, GWLP_WNDPROC, (LONG_PTR) WINHELP_ButtonWndProc);
1178                 }
1179             }
1180             hDc = GetDC(button->hWnd);
1181             GetTextExtentPoint(hDc, button->lpszName,
1182                                lstrlen(button->lpszName), &textsize);
1183             ReleaseDC(button->hWnd, hDc);
1184
1185             button_size.cx = max(button_size.cx, textsize.cx + BUTTON_CX);
1186             button_size.cy = max(button_size.cy, textsize.cy + BUTTON_CY);
1187         }
1188
1189         x = 0;
1190         y = 0;
1191         for (button = win->first_button; button; button = button->next)
1192         {
1193             SetWindowPos(button->hWnd, HWND_TOP, x, y, button_size.cx, button_size.cy, 0);
1194
1195             if (x + 2 * button_size.cx <= winpos->cx)
1196                 x += button_size.cx;
1197             else
1198                 x = 0, y += button_size.cy;
1199         }
1200         winpos->cy = y + (x ? button_size.cy : 0);
1201         break;
1202
1203     case WM_COMMAND:
1204         SendMessage(GetParent(hWnd), msg, wParam, lParam);
1205         break;
1206
1207     case WM_KEYDOWN:
1208         switch (wParam)
1209         {
1210         case VK_UP:
1211         case VK_DOWN:
1212         case VK_PRIOR:
1213         case VK_NEXT:
1214         case VK_ESCAPE:
1215             return SendMessage(GetParent(hWnd), msg, wParam, lParam);
1216         }
1217         break;
1218     }
1219
1220     return DefWindowProc(hWnd, msg, wParam, lParam);
1221 }
1222
1223 /***********************************************************************
1224  *
1225  *           WINHELP_ButtonWndProc
1226  */
1227 static LRESULT CALLBACK WINHELP_ButtonWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1228 {
1229     if (WINHELP_CheckPopup(hWnd, msg, wParam, lParam, NULL)) return 0;
1230
1231     if (msg == WM_KEYDOWN)
1232     {
1233         switch (wParam)
1234         {
1235         case VK_UP:
1236         case VK_DOWN:
1237         case VK_PRIOR:
1238         case VK_NEXT:
1239         case VK_ESCAPE:
1240             return SendMessage(GetParent(hWnd), msg, wParam, lParam);
1241         }
1242     }
1243
1244     return CallWindowProc(Globals.button_proc, hWnd, msg, wParam, lParam);
1245 }
1246
1247 /******************************************************************
1248  *              WINHELP_HistoryWndProc
1249  *
1250  *
1251  */
1252 static LRESULT CALLBACK WINHELP_HistoryWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1253 {
1254     WINHELP_WINDOW*     win;
1255     PAINTSTRUCT         ps;
1256     HDC                 hDc;
1257     TEXTMETRIC          tm;
1258     unsigned int        i;
1259     RECT                r;
1260
1261     switch (msg)
1262     {
1263     case WM_NCCREATE:
1264         win = (WINHELP_WINDOW*)((LPCREATESTRUCT)lParam)->lpCreateParams;
1265         SetWindowLongPtr(hWnd, 0, (ULONG_PTR)win);
1266         win->hHistoryWnd = hWnd;
1267         break;
1268     case WM_CREATE:
1269         win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1270         hDc = GetDC(hWnd);
1271         GetTextMetrics(hDc, &tm);
1272         GetWindowRect(hWnd, &r);
1273
1274         r.right = r.left + 30 * tm.tmAveCharWidth;
1275         r.bottom = r.top + (sizeof(Globals.history.set) / sizeof(Globals.history.set[0])) * tm.tmHeight;
1276         AdjustWindowRect(&r, GetWindowLong(hWnd, GWL_STYLE), FALSE);
1277         if (r.left < 0) {r.right -= r.left; r.left = 0;}
1278         if (r.top < 0) {r.bottom -= r.top; r.top = 0;}
1279
1280         MoveWindow(hWnd, r.left, r.top, r.right, r.bottom, TRUE);
1281         ReleaseDC(hWnd, hDc);
1282         break;
1283     case WM_LBUTTONDOWN:
1284         win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1285         hDc = GetDC(hWnd);
1286         GetTextMetrics(hDc, &tm);
1287         i = HIWORD(lParam) / tm.tmHeight;
1288         if (i < Globals.history.index)
1289             WINHELP_CreateHelpWindow(&Globals.history.set[i], SW_SHOW, TRUE);
1290         ReleaseDC(hWnd, hDc);
1291         break;
1292     case WM_PAINT:
1293         hDc = BeginPaint(hWnd, &ps);
1294         win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1295         GetTextMetrics(hDc, &tm);
1296
1297         for (i = 0; i < Globals.history.index; i++)
1298         {
1299             if (Globals.history.set[i].page->file == Globals.active_win->page->file)
1300             {
1301                 TextOut(hDc, 0, i * tm.tmHeight,
1302                         Globals.history.set[i].page->lpszTitle,
1303                         strlen(Globals.history.set[i].page->lpszTitle));
1304             }
1305             else
1306             {
1307                 char        buffer[1024];
1308                 const char* ptr1;
1309                 const char* ptr2;
1310                 unsigned    len;
1311
1312                 ptr1 = strrchr(Globals.history.set[i].page->file->lpszPath, '\\');
1313                 if (!ptr1) ptr1 = Globals.history.set[i].page->file->lpszPath;
1314                 else ptr1++;
1315                 ptr2 = strrchr(ptr1, '.');
1316                 len = ptr2 ? ptr2 - ptr1 : strlen(ptr1);
1317                 if (len > sizeof(buffer)) len = sizeof(buffer);
1318                 memcpy(buffer, ptr1, len);
1319                 if (len < sizeof(buffer)) buffer[len++] = ':';
1320                 strncpy(&buffer[len], Globals.history.set[i].page->lpszTitle, sizeof(buffer) - len);
1321                 buffer[sizeof(buffer) - 1] = '\0';
1322                 TextOut(hDc, 0, i * tm.tmHeight, buffer, strlen(buffer));
1323             }
1324         }
1325         EndPaint(hWnd, &ps);
1326         break;
1327     case WM_DESTROY:
1328         win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1329         if (hWnd == win->hHistoryWnd)
1330             win->hHistoryWnd = 0;
1331         break;
1332     }
1333     return DefWindowProc(hWnd, msg, wParam, lParam);
1334 }
1335
1336 /***********************************************************************
1337  *
1338  *           WINHELP_ShadowWndProc
1339  */
1340 static LRESULT CALLBACK WINHELP_ShadowWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1341 {
1342     if (WINHELP_CheckPopup(hWnd, msg, wParam, lParam, NULL)) return 0;
1343     return WINHELP_CheckPopup(hWnd, msg, wParam, lParam, NULL) ? 0L : DefWindowProc(hWnd, msg, wParam, lParam);
1344 }
1345
1346 /***********************************************************************
1347  *
1348  *           WINHELP_CheckPopup
1349  */
1350 static BOOL WINHELP_CheckPopup(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam, LRESULT* lret)
1351 {
1352     HWND        hPopup;
1353
1354     if (!Globals.active_popup) return FALSE;
1355
1356     switch (msg)
1357     {
1358     case WM_NOTIFY:
1359         {
1360             MSGFILTER*  msgf = (MSGFILTER*)lParam;
1361             if (msgf->nmhdr.code == EN_MSGFILTER)
1362             {
1363                 if (!WINHELP_CheckPopup(hWnd, msgf->msg, msgf->wParam, msgf->lParam, NULL))
1364                     return FALSE;
1365                 if (lret) *lret = 1;
1366                 return TRUE;
1367             }
1368         }
1369         break;
1370     case WM_ACTIVATE:
1371         if (wParam != WA_INACTIVE || (HWND)lParam == Globals.active_win->hMainWnd ||
1372             (HWND)lParam == Globals.active_popup->hMainWnd ||
1373             GetWindow((HWND)lParam, GW_OWNER) == Globals.active_win->hMainWnd)
1374             break;
1375     case WM_LBUTTONUP:
1376     case WM_LBUTTONDOWN:
1377         if (WINHELP_HandleTextMouse(Globals.active_popup, msg, lParam) && msg == WM_LBUTTONDOWN)
1378             return FALSE;
1379         /* fall through */
1380     case WM_MBUTTONDOWN:
1381     case WM_RBUTTONDOWN:
1382     case WM_NCLBUTTONDOWN:
1383     case WM_NCMBUTTONDOWN:
1384     case WM_NCRBUTTONDOWN:
1385         hPopup = Globals.active_popup->hMainWnd;
1386         Globals.active_popup = NULL;
1387         DestroyWindow(hPopup);
1388         return TRUE;
1389     }
1390     return FALSE;
1391 }
1392
1393 /******************************************************************
1394  *              WINHELP_DeleteButtons
1395  *
1396  */
1397 static void WINHELP_DeleteButtons(WINHELP_WINDOW* win)
1398 {
1399     WINHELP_BUTTON*     b;
1400     WINHELP_BUTTON*     bp;
1401
1402     for (b = win->first_button; b; b = bp)
1403     {
1404         DestroyWindow(b->hWnd);
1405         bp = b->next;
1406         HeapFree(GetProcessHeap(), 0, b);
1407     }
1408     win->first_button = NULL;
1409 }
1410
1411 /******************************************************************
1412  *              WINHELP_DeleteBackSet
1413  *
1414  */
1415 void WINHELP_DeleteBackSet(WINHELP_WINDOW* win)
1416 {
1417     unsigned int i;
1418
1419     for (i = 0; i < win->back.index; i++)
1420     {
1421         HLPFILE_FreeHlpFile(win->back.set[i].page->file);
1422         win->back.set[i].page = NULL;
1423     }
1424     win->back.index = 0;
1425 }
1426
1427 /******************************************************************
1428  *             WINHELP_DeletePageLinks
1429  *
1430  */
1431 static void WINHELP_DeletePageLinks(HLPFILE_PAGE* page)
1432 {
1433     HLPFILE_LINK*       curr;
1434     HLPFILE_LINK*       next;
1435
1436     for (curr = page->first_link; curr; curr = next)
1437     {
1438         next = curr->next;
1439         HeapFree(GetProcessHeap(), 0, curr);
1440     }
1441 }
1442
1443 /***********************************************************************
1444  *
1445  *           WINHELP_DeleteWindow
1446  */
1447 static void WINHELP_DeleteWindow(WINHELP_WINDOW* win)
1448 {
1449     WINHELP_WINDOW**    w;
1450
1451     for (w = &Globals.win_list; *w; w = &(*w)->next)
1452     {
1453         if (*w == win)
1454         {
1455             *w = win->next;
1456             break;
1457         }
1458     }
1459
1460     if (Globals.active_win == win)
1461     {
1462         Globals.active_win = Globals.win_list;
1463         if (Globals.win_list)
1464             SetActiveWindow(Globals.win_list->hMainWnd);
1465     }
1466
1467     if (win == Globals.active_popup)
1468         Globals.active_popup = NULL;
1469
1470     WINHELP_DeleteButtons(win);
1471
1472     if (win->page) WINHELP_DeletePageLinks(win->page);
1473     if (win->hShadowWnd) DestroyWindow(win->hShadowWnd);
1474     if (win->hHistoryWnd) DestroyWindow(win->hHistoryWnd);
1475
1476     DeleteObject(win->hBrush);
1477
1478     WINHELP_DeleteBackSet(win);
1479
1480     if (win->page) HLPFILE_FreeHlpFile(win->page->file);
1481     HeapFree(GetProcessHeap(), 0, win);
1482 }
1483
1484 /***********************************************************************
1485  *
1486  *           WINHELP_InitFonts
1487  */
1488 static void WINHELP_InitFonts(HWND hWnd)
1489 {
1490     WINHELP_WINDOW *win = (WINHELP_WINDOW*) GetWindowLongPtr(hWnd, 0);
1491     LOGFONT logfontlist[] = {
1492         {-10, 0, 0, 0, 400, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 32, "Helv"},
1493         {-12, 0, 0, 0, 700, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 32, "Helv"},
1494         {-12, 0, 0, 0, 700, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 32, "Helv"},
1495         {-12, 0, 0, 0, 400, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 32, "Helv"},
1496         {-12, 0, 0, 0, 700, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 32, "Helv"},
1497         {-10, 0, 0, 0, 700, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 32, "Helv"},
1498         { -8, 0, 0, 0, 400, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 32, "Helv"}};
1499 #define FONTS_LEN (sizeof(logfontlist)/sizeof(*logfontlist))
1500
1501     static HFONT fonts[FONTS_LEN];
1502     static BOOL init = 0;
1503
1504     win->fonts_len = FONTS_LEN;
1505     win->fonts = fonts;
1506
1507     if (!init)
1508     {
1509         UINT i;
1510
1511         for (i = 0; i < FONTS_LEN; i++)
1512         {
1513             fonts[i] = CreateFontIndirect(&logfontlist[i]);
1514         }
1515
1516         init = 1;
1517     }
1518 }
1519
1520 /***********************************************************************
1521  *
1522  *           WINHELP_MessageBoxIDS_s
1523  */
1524 INT WINHELP_MessageBoxIDS_s(UINT ids_text, LPCSTR str, UINT ids_title, WORD type)
1525 {
1526     CHAR text[MAX_STRING_LEN];
1527     CHAR newtext[MAX_STRING_LEN + MAX_PATH];
1528
1529     LoadString(Globals.hInstance, ids_text, text, sizeof(text));
1530     wsprintf(newtext, text, str);
1531
1532     return MessageBox(0, newtext, MAKEINTRESOURCE(ids_title), type);
1533 }
1534
1535 /**************************************************************************
1536  * cb_KWBTree
1537  *
1538  * HLPFILE_BPTreeCallback enumeration function for '|KWBTREE' internal file.
1539  *
1540  */
1541 static void cb_KWBTree(void *p, void **next, void *cookie)
1542 {
1543     HWND hListWnd = (HWND)cookie;
1544     int count;
1545
1546     WINE_TRACE("Adding '%s' to search list\n", (char *)p);
1547     SendMessage(hListWnd, LB_INSERTSTRING, -1, (LPARAM)p);
1548     count = SendMessage(hListWnd, LB_GETCOUNT, 0, 0);
1549     SendMessage(hListWnd, LB_SETITEMDATA, count-1, (LPARAM)p);
1550     *next = (char*)p + strlen((char*)p) + 7;
1551 }
1552
1553 struct index_data
1554 {
1555     HLPFILE*    hlpfile;
1556     BOOL        jump;
1557     ULONG       offset;
1558 };
1559
1560 /**************************************************************************
1561  * WINHELP_IndexDlgProc
1562  *
1563  * Index dialog callback function.
1564  *
1565  * nResult passed to EndDialog:
1566  *   1: CANCEL button
1567  *  >1: valid offset value +2.
1568  *  EndDialog itself can return 0 (error).
1569  */
1570 INT_PTR CALLBACK WINHELP_IndexDlgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1571 {
1572     static struct index_data* id;
1573     int sel;
1574
1575     switch (msg)
1576     {
1577     case WM_INITDIALOG:
1578         id = (struct index_data*)((PROPSHEETPAGE*)lParam)->lParam;
1579         HLPFILE_BPTreeEnum(id->hlpfile->kwbtree, cb_KWBTree,
1580                            GetDlgItem(hWnd, IDC_INDEXLIST));
1581         id->jump = FALSE;
1582         id->offset = 1;
1583         return TRUE;
1584     case WM_NOTIFY:
1585         switch (((NMHDR*)lParam)->code)
1586         {
1587         case PSN_APPLY:
1588             sel = SendDlgItemMessage(hWnd, IDC_INDEXLIST, LB_GETCURSEL, 0, 0);
1589             if (sel != LB_ERR)
1590             {
1591                 BYTE *p;
1592                 int count;
1593
1594                 p = (BYTE*)SendDlgItemMessage(hWnd, IDC_INDEXLIST,
1595                                               LB_GETITEMDATA, sel, 0);
1596                 count = *(short*)((char *)p + strlen((char *)p) + 1);
1597                 if (count > 1)
1598                 {
1599                     MessageBox(hWnd, "count > 1 not supported yet", "Error", MB_OK | MB_ICONSTOP);
1600                     SetWindowLongPtr(hWnd, DWLP_MSGRESULT, PSNRET_INVALID);
1601                     return TRUE;
1602                 }
1603                 id->offset = *(ULONG*)((char *)p + strlen((char *)p) + 3);
1604                 id->offset = *(long*)(id->hlpfile->kwdata + id->offset + 9);
1605                 if (id->offset == 0xFFFFFFFF)
1606                 {
1607                     MessageBox(hWnd, "macro keywords not supported yet", "Error", MB_OK | MB_ICONSTOP);
1608                     SetWindowLongPtr(hWnd, DWLP_MSGRESULT, PSNRET_INVALID);
1609                     return TRUE;
1610                 }
1611                 id->jump = TRUE;
1612                 SetWindowLongPtr(hWnd, DWLP_MSGRESULT, PSNRET_NOERROR);
1613             }
1614             return TRUE;
1615         default:
1616             return FALSE;
1617         }
1618         break;
1619     default:
1620         break;
1621     }
1622     return FALSE;
1623 }
1624
1625 /**************************************************************************
1626  * WINHELP_CreateIndexWindow
1627  *
1628  * Displays a dialog with keywords of current help file.
1629  *
1630  */
1631 BOOL WINHELP_CreateIndexWindow(void)
1632 {
1633     HPROPSHEETPAGE      psPage[3];
1634     PROPSHEETPAGE       psp;
1635     PROPSHEETHEADER     psHead;
1636     struct index_data   id;
1637     char                buf[256];
1638
1639     if (Globals.active_win && Globals.active_win->page && Globals.active_win->page->file)
1640         id.hlpfile = Globals.active_win->page->file;
1641     else
1642         return FALSE;
1643
1644     if (id.hlpfile->kwbtree == NULL)
1645     {
1646         WINE_TRACE("No index provided\n");
1647         return FALSE;
1648     }
1649
1650     InitCommonControls();
1651
1652     id.jump = FALSE;
1653     memset(&psp, 0, sizeof(psp));
1654     psp.dwSize = sizeof(psp);
1655     psp.dwFlags = 0;
1656     psp.hInstance = Globals.hInstance;
1657
1658     psp.u.pszTemplate = MAKEINTRESOURCE(IDD_INDEX);
1659     psp.lParam = (LPARAM)&id;
1660     psp.pfnDlgProc = WINHELP_IndexDlgProc;
1661     psPage[0] = CreatePropertySheetPage(&psp);
1662
1663     memset(&psHead, 0, sizeof(psHead));
1664     psHead.dwSize = sizeof(psHead);
1665
1666     LoadString(Globals.hInstance, STID_PSH_INDEX, buf, sizeof(buf));
1667     strcat(buf, Globals.active_win->info->caption);
1668
1669     psHead.pszCaption = buf;
1670     psHead.nPages = 1;
1671     psHead.hwndParent = Globals.active_win->hMainWnd;
1672     psHead.u3.phpage = psPage;
1673     psHead.dwFlags = PSH_NOAPPLYNOW;
1674
1675     PropertySheet(&psHead);
1676     if (id.jump)
1677     {
1678         WINE_TRACE("got %d as an offset\n", id.offset);
1679         WINHELP_OpenHelpWindow(HLPFILE_PageByOffset, id.hlpfile, id.offset,
1680                                Globals.active_win->info, SW_NORMAL);
1681     }
1682     return TRUE;
1683 }