dlls/hhctrl.ocx/help.c

   1 /*
   2  * Help Viewer Implementation
   3  *
   4  * Copyright 2005 James Hawkins
   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 "hhctrl.h"
  23
  24 #include "wingdi.h"
  25 #include "commctrl.h"
  26 #include "wininet.h"
  27
  28 #include "wine/debug.h"
  29
  30 #include "resource.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(htmlhelp);
  33
  34 static LRESULT Help_OnSize(HWND hWnd);
  35
  36 /* Window type defaults */
  37
  38 #define WINTYPE_DEFAULT_X           280
  39 #define WINTYPE_DEFAULT_Y           100
  40 #define WINTYPE_DEFAULT_WIDTH       740
  41 #define WINTYPE_DEFAULT_HEIGHT      640
  42 #define WINTYPE_DEFAULT_NAVWIDTH    250
  43
  44 #define TAB_TOP_PADDING     8
  45 #define TAB_RIGHT_PADDING   4
  46 #define TAB_MARGIN  8
  47
  48 static const WCHAR szEmpty[] = {0};
  49
  50 /* Loads a string from the resource file */
  51 static LPWSTR HH_LoadString(DWORD dwID)
  52 {
  53     LPWSTR string = NULL;
  54     LPCWSTR stringresource;
  55     int iSize;
  56
  57     iSize = LoadStringW(hhctrl_hinstance, dwID, (LPWSTR)&stringresource, 0);
  58
  59     string = heap_alloc((iSize + 2) * sizeof(WCHAR)); /* some strings (tab text) needs double-null termination */
  60     memcpy(string, stringresource, iSize*sizeof(WCHAR));
  61     string[iSize] = 0;
  62
  63     return string;
  64 }
  65
  66 static HRESULT navigate_url(HHInfo *info, LPCWSTR surl)
  67 {
  68     VARIANT url;
  69     HRESULT hres;
  70
  71     TRACE("%s\n", debugstr_w(surl));
  72
  73     V_VT(&url) = VT_BSTR;
  74     V_BSTR(&url) = SysAllocString(surl);
  75
  76     hres = IWebBrowser2_Navigate2(info->web_browser, &url, 0, 0, 0, 0);
  77
  78     VariantClear(&url);
  79
  80     if(FAILED(hres))
  81         TRACE("Navigation failed: %08x\n", hres);
  82
  83     return hres;
  84 }
  85
  86 BOOL NavigateToUrl(HHInfo *info, LPCWSTR surl)
  87 {
  88     ChmPath chm_path;
  89     BOOL ret;
  90     HRESULT hres;
  91
  92     static const WCHAR url_indicator[] = {':', '/', '/', 0};
  93
  94     TRACE("%s\n", debugstr_w(surl));
  95
  96     if (strstrW(surl, url_indicator)) {
  97         hres = navigate_url(info, surl);
  98         if(SUCCEEDED(hres))
  99             return TRUE;
 100     } /* look up in chm if it doesn't look like a full url */
 101
 102     SetChmPath(&chm_path, info->pCHMInfo->szFile, surl);
 103     ret = NavigateToChm(info, chm_path.chm_file, chm_path.chm_index);
 104
 105     heap_free(chm_path.chm_file);
 106     heap_free(chm_path.chm_index);
 107
 108     return ret;
 109 }
 110
 111 BOOL NavigateToChm(HHInfo *info, LPCWSTR file, LPCWSTR index)
 112 {
 113     WCHAR buf[INTERNET_MAX_URL_LENGTH];
 114     WCHAR full_path[MAX_PATH];
 115     LPWSTR ptr;
 116
 117     static const WCHAR url_format[] =
 118         {'m','k',':','@','M','S','I','T','S','t','o','r','e',':','%','s',':',':','%','s','%','s',0};
 119     static const WCHAR slash[] = {'/',0};
 120     static const WCHAR empty[] = {0};
 121
 122     TRACE("%p %s %s\n", info, debugstr_w(file), debugstr_w(index));
 123
 124     if (!info->web_browser)
 125         return FALSE;
 126
 127     if(!GetFullPathNameW(file, sizeof(full_path)/sizeof(full_path[0]), full_path, NULL)) {
 128         WARN("GetFullPathName failed: %u\n", GetLastError());
 129         return FALSE;
 130     }
 131
 132     wsprintfW(buf, url_format, full_path, (!index || index[0] == '/') ? empty : slash, index);
 133
 134     /* FIXME: HACK */
 135     if((ptr = strchrW(buf, '#')))
 136        *ptr = 0;
 137
 138     return SUCCEEDED(navigate_url(info, buf));
 139 }
 140
 141 /* Size Bar */
 142
 143 #define SIZEBAR_WIDTH   4
 144
 145 static const WCHAR szSizeBarClass[] = {
 146     'H','H',' ','S','i','z','e','B','a','r',0
 147 };
 148
 149 /* Draw the SizeBar */
 150 static void SB_OnPaint(HWND hWnd)
 151 {
 152     PAINTSTRUCT ps;
 153     HDC hdc;
 154     RECT rc;
 155
 156     hdc = BeginPaint(hWnd, &ps);
 157
 158     GetClientRect(hWnd, &rc);
 159
 160     /* dark frame */
 161     rc.right += 1;
 162     rc.bottom -= 1;
 163     FrameRect(hdc, &rc, GetStockObject(GRAY_BRUSH));
 164
 165     /* white highlight */
 166     SelectObject(hdc, GetStockObject(WHITE_PEN));
 167     MoveToEx(hdc, rc.right, 1, NULL);
 168     LineTo(hdc, 1, 1);
 169     LineTo(hdc, 1, rc.bottom - 1);
 170
 171
 172     MoveToEx(hdc, 0, rc.bottom, NULL);
 173     LineTo(hdc, rc.right, rc.bottom);
 174
 175     EndPaint(hWnd, &ps);
 176 }
 177
 178 static void SB_OnLButtonDown(HWND hWnd, WPARAM wParam, LPARAM lParam)
 179 {
 180     SetCapture(hWnd);
 181 }
 182
 183 static void SB_OnLButtonUp(HWND hWnd, WPARAM wParam, LPARAM lParam)
 184 {
 185     HHInfo *pHHInfo = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 186     POINT pt;
 187
 188     pt.x = (short)LOWORD(lParam);
 189     pt.y = (short)HIWORD(lParam);
 190
 191     /* update the window sizes */
 192     pHHInfo->WinType.iNavWidth += pt.x;
 193     Help_OnSize(hWnd);
 194
 195     ReleaseCapture();
 196 }
 197
 198 static void SB_OnMouseMove(HWND hWnd, WPARAM wParam, LPARAM lParam)
 199 {
 200     /* ignore WM_MOUSEMOVE if not dragging the SizeBar */
 201     if (!(wParam & MK_LBUTTON))
 202         return;
 203 }
 204
 205 static LRESULT CALLBACK SizeBar_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 206 {
 207     switch (message)
 208     {
 209         case WM_LBUTTONDOWN:
 210             SB_OnLButtonDown(hWnd, wParam, lParam);
 211             break;
 212         case WM_LBUTTONUP:
 213             SB_OnLButtonUp(hWnd, wParam, lParam);
 214             break;
 215         case WM_MOUSEMOVE:
 216             SB_OnMouseMove(hWnd, wParam, lParam);
 217             break;
 218         case WM_PAINT:
 219             SB_OnPaint(hWnd);
 220             break;
 221         default:
 222             return DefWindowProcW(hWnd, message, wParam, lParam);
 223     }
 224
 225     return 0;
 226 }
 227
 228 static void HH_RegisterSizeBarClass(HHInfo *pHHInfo)
 229 {
 230     WNDCLASSEXW wcex;
 231
 232     wcex.cbSize         = sizeof(WNDCLASSEXW);
 233     wcex.style          = 0;
 234     wcex.lpfnWndProc    = SizeBar_WndProc;
 235     wcex.cbClsExtra     = 0;
 236     wcex.cbWndExtra     = 0;
 237     wcex.hInstance      = hhctrl_hinstance;
 238     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 239     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_SIZEWE);
 240     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
 241     wcex.lpszMenuName   = NULL;
 242     wcex.lpszClassName  = szSizeBarClass;
 243     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 244
 245     RegisterClassExW(&wcex);
 246 }
 247
 248 static void SB_GetSizeBarRect(HHInfo *info, RECT *rc)
 249 {
 250     RECT rectWND, rectTB, rectNP;
 251
 252     GetClientRect(info->WinType.hwndHelp, &rectWND);
 253     GetClientRect(info->WinType.hwndToolBar, &rectTB);
 254     GetClientRect(info->WinType.hwndNavigation, &rectNP);
 255
 256     rc->left = rectNP.right;
 257     rc->top = rectTB.bottom;
 258     rc->bottom = rectWND.bottom - rectTB.bottom;
 259     rc->right = SIZEBAR_WIDTH;
 260 }
 261
 262 static BOOL HH_AddSizeBar(HHInfo *pHHInfo)
 263 {
 264     HWND hWnd;
 265     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 266     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE | WS_OVERLAPPED;
 267     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 268     RECT rc;
 269
 270     SB_GetSizeBarRect(pHHInfo, &rc);
 271
 272     hWnd = CreateWindowExW(dwExStyles, szSizeBarClass, szEmpty, dwStyles,
 273                            rc.left, rc.top, rc.right, rc.bottom,
 274                            hwndParent, NULL, hhctrl_hinstance, NULL);
 275     if (!hWnd)
 276         return FALSE;
 277
 278     /* store the pointer to the HH info struct */
 279     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)pHHInfo);
 280
 281     pHHInfo->hwndSizeBar = hWnd;
 282     return TRUE;
 283 }
 284
 285 /* Child Window */
 286
 287 static const WCHAR szChildClass[] = {
 288     'H','H',' ','C','h','i','l','d',0
 289 };
 290
 291 static LRESULT Child_OnPaint(HWND hWnd)
 292 {
 293     PAINTSTRUCT ps;
 294     HDC hdc;
 295     RECT rc;
 296
 297     hdc = BeginPaint(hWnd, &ps);
 298
 299     /* Only paint the Navigation pane, identified by the fact
 300      * that it has a child window
 301      */
 302     if (GetWindow(hWnd, GW_CHILD))
 303     {
 304         GetClientRect(hWnd, &rc);
 305
 306         /* set the border color */
 307         SelectObject(hdc, GetStockObject(DC_PEN));
 308         SetDCPenColor(hdc, GetSysColor(COLOR_BTNSHADOW));
 309
 310         /* Draw the top border */
 311         LineTo(hdc, rc.right, 0);
 312
 313         SelectObject(hdc, GetStockObject(WHITE_PEN));
 314         MoveToEx(hdc, 0, 1, NULL);
 315         LineTo(hdc, rc.right, 1);
 316     }
 317
 318     EndPaint(hWnd, &ps);
 319
 320     return 0;
 321 }
 322
 323 static void ResizeTabChild(HHInfo *info, int tab)
 324 {
 325     HWND hwnd = info->tabs[tab].hwnd;
 326     INT width, height;
 327     RECT rect, tabrc;
 328     DWORD cnt;
 329
 330     GetClientRect(info->WinType.hwndNavigation, &rect);
 331     SendMessageW(info->hwndTabCtrl, TCM_GETITEMRECT, 0, (LPARAM)&tabrc);
 332     cnt = SendMessageW(info->hwndTabCtrl, TCM_GETROWCOUNT, 0, 0);
 333
 334     rect.left = TAB_MARGIN;
 335     rect.top = TAB_TOP_PADDING + cnt*(tabrc.bottom-tabrc.top) + TAB_MARGIN;
 336     rect.right -= TAB_RIGHT_PADDING + TAB_MARGIN;
 337     rect.bottom -= TAB_MARGIN;
 338     width = rect.right-rect.left;
 339     height = rect.bottom-rect.top;
 340
 341     SetWindowPos(hwnd, NULL, rect.left, rect.top, width, height,
 342                  SWP_NOZORDER | SWP_NOACTIVATE);
 343
 344     /* Resize the tab widget column to perfectly fit the tab window and
 345      * leave sufficient space for the scroll widget.
 346      */
 347     switch (tab)
 348     {
 349     case TAB_INDEX: {
 350         int scroll_width = GetSystemMetrics(SM_CXVSCROLL);
 351         int border_width = GetSystemMetrics(SM_CXBORDER);
 352         int edge_width = GetSystemMetrics(SM_CXEDGE);
 353
 354         SendMessageW(info->tabs[TAB_INDEX].hwnd, LVM_SETCOLUMNWIDTH, 0,
 355                      width-scroll_width-2*border_width-2*edge_width);
 356
 357         break;
 358     }
 359     }
 360 }
 361
 362 static LRESULT Child_OnSize(HWND hwnd)
 363 {
 364     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 365     RECT rect;
 366
 367     if(!info || hwnd != info->WinType.hwndNavigation)
 368         return 0;
 369
 370     GetClientRect(hwnd, &rect);
 371     SetWindowPos(info->hwndTabCtrl, HWND_TOP, 0, 0,
 372                  rect.right - TAB_RIGHT_PADDING,
 373                  rect.bottom - TAB_TOP_PADDING, SWP_NOMOVE);
 374
 375     ResizeTabChild(info, TAB_CONTENTS);
 376     ResizeTabChild(info, TAB_INDEX);
 377     return 0;
 378 }
 379
 380 static LRESULT OnTabChange(HWND hwnd)
 381 {
 382     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 383
 384     TRACE("%p\n", hwnd);
 385
 386     if (!info)
 387         return 0;
 388
 389     if(info->tabs[info->current_tab].hwnd)
 390         ShowWindow(info->tabs[info->current_tab].hwnd, SW_HIDE);
 391
 392     info->current_tab = SendMessageW(info->hwndTabCtrl, TCM_GETCURSEL, 0, 0);
 393
 394     if(info->tabs[info->current_tab].hwnd)
 395         ShowWindow(info->tabs[info->current_tab].hwnd, SW_SHOW);
 396
 397     return 0;
 398 }
 399
 400 static LRESULT OnTopicChange(HHInfo *info, void *user_data)
 401 {
 402     LPCWSTR chmfile = NULL, name = NULL, local = NULL;
 403     ContentItem *citer;
 404     IndexItem *iiter;
 405
 406     if(!user_data || !info)
 407         return 0;
 408
 409     switch (info->current_tab)
 410     {
 411     case TAB_CONTENTS:
 412         citer = (ContentItem *) user_data;
 413         name = citer->name;
 414         local = citer->local;
 415         while(citer) {
 416             if(citer->merge.chm_file) {
 417                 chmfile = citer->merge.chm_file;
 418                 break;
 419             }
 420             citer = citer->parent;
 421         }
 422         break;
 423     case TAB_INDEX:
 424         iiter = (IndexItem *) user_data;
 425         if(iiter->nItems == 0) {
 426             FIXME("No entries for this item!\n");
 427             return 0;
 428         }
 429         if(iiter->nItems > 1) {
 430             int i = 0;
 431             LVITEMW lvi;
 432
 433             SendMessageW(info->popup.hwndList, LVM_DELETEALLITEMS, 0, 0);
 434             for(i=0;i<iiter->nItems;i++) {
 435                 IndexSubItem *item = &iiter->items[i];
 436                 WCHAR *name = iiter->keyword;
 437
 438                 if(item->name)
 439                     name = item->name;
 440                 memset(&lvi, 0, sizeof(lvi));
 441                 lvi.iItem = i;
 442                 lvi.mask = LVIF_TEXT|LVIF_PARAM;
 443                 lvi.cchTextMax = strlenW(name)+1;
 444                 lvi.pszText = name;
 445                 lvi.lParam = (LPARAM) item;
 446                 SendMessageW(info->popup.hwndList, LVM_INSERTITEMW, 0, (LPARAM)&lvi);
 447             }
 448             ShowWindow(info->popup.hwndPopup, SW_SHOW);
 449             return 0;
 450         }
 451         name = iiter->items[0].name;
 452         local = iiter->items[0].local;
 453         chmfile = iiter->merge.chm_file;
 454         break;
 455     default:
 456         FIXME("Unhandled operation for this tab!\n");
 457         return 0;
 458     }
 459
 460     if(!chmfile)
 461     {
 462         FIXME("No help file found for this item!\n");
 463         return 0;
 464     }
 465
 466     TRACE("name %s loal %s\n", debugstr_w(name), debugstr_w(local));
 467
 468     NavigateToChm(info, chmfile, local);
 469     return 0;
 470 }
 471
 472 static LRESULT CALLBACK Child_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 473 {
 474     switch (message)
 475     {
 476     case WM_PAINT:
 477         return Child_OnPaint(hWnd);
 478     case WM_SIZE:
 479         return Child_OnSize(hWnd);
 480     case WM_NOTIFY: {
 481         HHInfo *info = (HHInfo*)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 482         NMHDR *nmhdr = (NMHDR*)lParam;
 483
 484         switch(nmhdr->code) {
 485         case TCN_SELCHANGE:
 486             return OnTabChange(hWnd);
 487         case TVN_SELCHANGEDW:
 488             return OnTopicChange(info, (void*)((NMTREEVIEWW *)lParam)->itemNew.lParam);
 489         case NM_DBLCLK:
 490             if(info->current_tab == TAB_INDEX)
 491                 return OnTopicChange(info, (void*)((NMITEMACTIVATE *)lParam)->lParam);
 492         }
 493         break;
 494     }
 495     default:
 496         return DefWindowProcW(hWnd, message, wParam, lParam);
 497     }
 498
 499     return 0;
 500 }
 501
 502 static void HH_RegisterChildWndClass(HHInfo *pHHInfo)
 503 {
 504     WNDCLASSEXW wcex;
 505
 506     wcex.cbSize         = sizeof(WNDCLASSEXW);
 507     wcex.style          = 0;
 508     wcex.lpfnWndProc    = Child_WndProc;
 509     wcex.cbClsExtra     = 0;
 510     wcex.cbWndExtra     = 0;
 511     wcex.hInstance      = hhctrl_hinstance;
 512     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 513     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
 514     wcex.hbrBackground  = (HBRUSH)(COLOR_BTNFACE + 1);
 515     wcex.lpszMenuName   = NULL;
 516     wcex.lpszClassName  = szChildClass;
 517     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 518
 519     RegisterClassExW(&wcex);
 520 }
 521
 522 /* Toolbar */
 523
 524 #define ICON_SIZE   20
 525
 526 static void TB_OnClick(HWND hWnd, DWORD dwID)
 527 {
 528     HHInfo *info = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 529
 530     switch (dwID)
 531     {
 532         case IDTB_STOP:
 533             DoPageAction(info, WB_STOP);
 534             break;
 535         case IDTB_REFRESH:
 536             DoPageAction(info, WB_REFRESH);
 537             break;
 538         case IDTB_BACK:
 539             DoPageAction(info, WB_GOBACK);
 540             break;
 541         case IDTB_HOME:
 542             NavigateToChm(info, info->pCHMInfo->szFile, info->WinType.pszHome);
 543             break;
 544         case IDTB_FORWARD:
 545             DoPageAction(info, WB_GOFORWARD);
 546             break;
 547         case IDTB_EXPAND:
 548         case IDTB_CONTRACT:
 549         case IDTB_SYNC:
 550         case IDTB_PRINT:
 551         case IDTB_OPTIONS:
 552         case IDTB_BROWSE_FWD:
 553         case IDTB_BROWSE_BACK:
 554         case IDTB_JUMP1:
 555         case IDTB_JUMP2:
 556         case IDTB_CUSTOMIZE:
 557         case IDTB_ZOOM:
 558         case IDTB_TOC_NEXT:
 559         case IDTB_TOC_PREV:
 560             break;
 561     }
 562 }
 563
 564 static void TB_AddButton(TBBUTTON *pButtons, DWORD dwIndex, DWORD dwID)
 565 {
 566     /* FIXME: Load the correct button bitmaps */
 567     pButtons[dwIndex].iBitmap = STD_PRINT;
 568     pButtons[dwIndex].idCommand = dwID;
 569     pButtons[dwIndex].fsState = TBSTATE_ENABLED;
 570     pButtons[dwIndex].fsStyle = BTNS_BUTTON;
 571     pButtons[dwIndex].dwData = 0;
 572     pButtons[dwIndex].iString = 0;
 573 }
 574
 575 static void TB_AddButtonsFromFlags(TBBUTTON *pButtons, DWORD dwButtonFlags, LPDWORD pdwNumButtons)
 576 {
 577     *pdwNumButtons = 0;
 578
 579     if (dwButtonFlags & HHWIN_BUTTON_EXPAND)
 580         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_EXPAND);
 581
 582     if (dwButtonFlags & HHWIN_BUTTON_BACK)
 583         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_BACK);
 584
 585     if (dwButtonFlags & HHWIN_BUTTON_FORWARD)
 586         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_FORWARD);
 587
 588     if (dwButtonFlags & HHWIN_BUTTON_STOP)
 589         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_STOP);
 590
 591     if (dwButtonFlags & HHWIN_BUTTON_REFRESH)
 592         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_REFRESH);
 593
 594     if (dwButtonFlags & HHWIN_BUTTON_HOME)
 595         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_HOME);
 596
 597     if (dwButtonFlags & HHWIN_BUTTON_SYNC)
 598         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_SYNC);
 599
 600     if (dwButtonFlags & HHWIN_BUTTON_OPTIONS)
 601         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_OPTIONS);
 602
 603     if (dwButtonFlags & HHWIN_BUTTON_PRINT)
 604         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_PRINT);
 605
 606     if (dwButtonFlags & HHWIN_BUTTON_JUMP1)
 607         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_JUMP1);
 608
 609     if (dwButtonFlags & HHWIN_BUTTON_JUMP2)
 610         TB_AddButton(pButtons,(*pdwNumButtons)++, IDTB_JUMP2);
 611
 612     if (dwButtonFlags & HHWIN_BUTTON_ZOOM)
 613         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_ZOOM);
 614
 615     if (dwButtonFlags & HHWIN_BUTTON_TOC_NEXT)
 616         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_TOC_NEXT);
 617
 618     if (dwButtonFlags & HHWIN_BUTTON_TOC_PREV)
 619         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_TOC_PREV);
 620 }
 621
 622 static BOOL HH_AddToolbar(HHInfo *pHHInfo)
 623 {
 624     HWND hToolbar;
 625     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 626     DWORD toolbarFlags;
 627     TBBUTTON buttons[IDTB_TOC_PREV - IDTB_EXPAND];
 628     TBADDBITMAP tbAB;
 629     DWORD dwStyles, dwExStyles;
 630     DWORD dwNumButtons, dwIndex;
 631
 632     if (pHHInfo->WinType.fsWinProperties & HHWIN_PARAM_TB_FLAGS)
 633         toolbarFlags = pHHInfo->WinType.fsToolBarFlags;
 634     else
 635         toolbarFlags = HHWIN_DEF_BUTTONS;
 636
 637     TB_AddButtonsFromFlags(buttons, toolbarFlags, &dwNumButtons);
 638
 639     dwStyles = WS_CHILDWINDOW | WS_VISIBLE | TBSTYLE_FLAT |
 640                TBSTYLE_WRAPABLE | TBSTYLE_TOOLTIPS | CCS_NODIVIDER;
 641     dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 642
 643     hToolbar = CreateWindowExW(dwExStyles, TOOLBARCLASSNAMEW, NULL, dwStyles,
 644                                0, 0, 0, 0, hwndParent, NULL,
 645                                hhctrl_hinstance, NULL);
 646     if (!hToolbar)
 647         return FALSE;
 648
 649     SendMessageW(hToolbar, TB_SETBITMAPSIZE, 0, MAKELONG(ICON_SIZE, ICON_SIZE));
 650     SendMessageW(hToolbar, TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);
 651     SendMessageW(hToolbar, WM_SETFONT, (WPARAM)pHHInfo->hFont, TRUE);
 652
 653     /* FIXME: Load correct icons for all buttons */
 654     tbAB.hInst = HINST_COMMCTRL;
 655     tbAB.nID = IDB_STD_LARGE_COLOR;
 656     SendMessageW(hToolbar, TB_ADDBITMAP, 0, (LPARAM)&tbAB);
 657
 658     for (dwIndex = 0; dwIndex < dwNumButtons; dwIndex++)
 659     {
 660         LPWSTR szBuf = HH_LoadString(buttons[dwIndex].idCommand);
 661         DWORD dwLen = strlenW(szBuf);
 662         szBuf[dwLen + 1] = 0; /* Double-null terminate */
 663
 664         buttons[dwIndex].iString = (DWORD)SendMessageW(hToolbar, TB_ADDSTRINGW, 0, (LPARAM)szBuf);
 665         heap_free(szBuf);
 666     }
 667
 668     SendMessageW(hToolbar, TB_ADDBUTTONSW, dwNumButtons, (LPARAM)buttons);
 669     SendMessageW(hToolbar, TB_AUTOSIZE, 0, 0);
 670     ShowWindow(hToolbar, SW_SHOW);
 671
 672     pHHInfo->WinType.hwndToolBar = hToolbar;
 673     return TRUE;
 674 }
 675
 676 /* Navigation Pane */
 677
 678 static void NP_GetNavigationRect(HHInfo *pHHInfo, RECT *rc)
 679 {
 680     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 681     HWND hwndToolbar = pHHInfo->WinType.hwndToolBar;
 682     RECT rectWND, rectTB;
 683
 684     GetClientRect(hwndParent, &rectWND);
 685     GetClientRect(hwndToolbar, &rectTB);
 686
 687     rc->left = 0;
 688     rc->top = rectTB.bottom;
 689     rc->bottom = rectWND.bottom - rectTB.bottom;
 690
 691     if (!(pHHInfo->WinType.fsValidMembers & HHWIN_PARAM_NAV_WIDTH) &&
 692           pHHInfo->WinType.iNavWidth == 0)
 693     {
 694         pHHInfo->WinType.iNavWidth = WINTYPE_DEFAULT_NAVWIDTH;
 695     }
 696
 697     rc->right = pHHInfo->WinType.iNavWidth;
 698 }
 699
 700 static DWORD NP_CreateTab(HINSTANCE hInstance, HWND hwndTabCtrl, DWORD index)
 701 {
 702     TCITEMW tie;
 703     LPWSTR tabText = HH_LoadString(index);
 704     DWORD ret;
 705
 706     tie.mask = TCIF_TEXT;
 707     tie.pszText = tabText;
 708
 709     ret = SendMessageW( hwndTabCtrl, TCM_INSERTITEMW, index, (LPARAM)&tie );
 710
 711     heap_free(tabText);
 712     return ret;
 713 }
 714
 715 static BOOL HH_AddNavigationPane(HHInfo *info)
 716 {
 717     HWND hWnd, hwndTabCtrl;
 718     HWND hwndParent = info->WinType.hwndHelp;
 719     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE;
 720     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 721     RECT rc;
 722
 723     NP_GetNavigationRect(info, &rc);
 724
 725     hWnd = CreateWindowExW(dwExStyles, szChildClass, szEmpty, dwStyles,
 726                            rc.left, rc.top, rc.right, rc.bottom,
 727                            hwndParent, NULL, hhctrl_hinstance, NULL);
 728     if (!hWnd)
 729         return FALSE;
 730
 731     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)info);
 732
 733     hwndTabCtrl = CreateWindowExW(dwExStyles, WC_TABCONTROLW, szEmpty, dwStyles,
 734                                   0, TAB_TOP_PADDING,
 735                                   rc.right - TAB_RIGHT_PADDING,
 736                                   rc.bottom - TAB_TOP_PADDING,
 737                                   hWnd, NULL, hhctrl_hinstance, NULL);
 738     if (!hwndTabCtrl)
 739         return FALSE;
 740
 741     if (*info->WinType.pszToc)
 742         info->tabs[TAB_CONTENTS].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_CONTENTS);
 743
 744     if (*info->WinType.pszIndex)
 745         info->tabs[TAB_INDEX].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_INDEX);
 746
 747     if (info->WinType.fsWinProperties & HHWIN_PROP_TAB_SEARCH)
 748         info->tabs[TAB_SEARCH].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_SEARCH);
 749
 750     if (info->WinType.fsWinProperties & HHWIN_PROP_TAB_FAVORITES)
 751         info->tabs[TAB_FAVORITES].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_FAVORITES);
 752
 753     SendMessageW(hwndTabCtrl, WM_SETFONT, (WPARAM)info->hFont, TRUE);
 754
 755     info->hwndTabCtrl = hwndTabCtrl;
 756     info->WinType.hwndNavigation = hWnd;
 757     return TRUE;
 758 }
 759
 760 /* HTML Pane */
 761
 762 static void HP_GetHTMLRect(HHInfo *info, RECT *rc)
 763 {
 764     RECT rectTB, rectWND, rectNP, rectSB;
 765
 766     GetClientRect(info->WinType.hwndHelp, &rectWND);
 767     GetClientRect(info->WinType.hwndToolBar, &rectTB);
 768     GetClientRect(info->WinType.hwndNavigation, &rectNP);
 769     GetClientRect(info->hwndSizeBar, &rectSB);
 770
 771     rc->left = rectNP.right + rectSB.right;
 772     rc->top = rectTB.bottom;
 773     rc->right = rectWND.right - rc->left;
 774     rc->bottom = rectWND.bottom - rectTB.bottom;
 775 }
 776
 777 static BOOL HH_AddHTMLPane(HHInfo *pHHInfo)
 778 {
 779     HWND hWnd;
 780     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 781     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE | WS_CLIPCHILDREN;
 782     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR | WS_EX_CLIENTEDGE;
 783     RECT rc;
 784
 785     HP_GetHTMLRect(pHHInfo, &rc);
 786
 787     hWnd = CreateWindowExW(dwExStyles, szChildClass, szEmpty, dwStyles,
 788                            rc.left, rc.top, rc.right, rc.bottom,
 789                            hwndParent, NULL, hhctrl_hinstance, NULL);
 790     if (!hWnd)
 791         return FALSE;
 792
 793     if (!InitWebBrowser(pHHInfo, hWnd))
 794         return FALSE;
 795
 796     /* store the pointer to the HH info struct */
 797     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)pHHInfo);
 798
 799     ShowWindow(hWnd, SW_SHOW);
 800     UpdateWindow(hWnd);
 801
 802     pHHInfo->WinType.hwndHTML = hWnd;
 803     return TRUE;
 804 }
 805
 806 static BOOL AddContentTab(HHInfo *info)
 807 {
 808     if(info->tabs[TAB_CONTENTS].id == -1)
 809         return TRUE; /* No "Contents" tab */
 810     info->tabs[TAB_CONTENTS].hwnd = CreateWindowExW(WS_EX_CLIENTEDGE, WC_TREEVIEWW,
 811            szEmpty, WS_CHILD | WS_BORDER | 0x25, 50, 50, 100, 100,
 812            info->WinType.hwndNavigation, NULL, hhctrl_hinstance, NULL);
 813     if(!info->tabs[TAB_CONTENTS].hwnd) {
 814         ERR("Could not create treeview control\n");
 815         return FALSE;
 816     }
 817
 818     ResizeTabChild(info, TAB_CONTENTS);
 819     ShowWindow(info->tabs[TAB_CONTENTS].hwnd, SW_SHOW);
 820
 821     return TRUE;
 822 }
 823
 824 static BOOL AddIndexTab(HHInfo *info)
 825 {
 826     char hidden_column[] = "Column";
 827     LVCOLUMNA lvc;
 828
 829     if(info->tabs[TAB_INDEX].id == -1)
 830         return TRUE; /* No "Index" tab */
 831     info->tabs[TAB_INDEX].hwnd = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW,
 832            szEmpty, WS_CHILD | WS_BORDER | LVS_SINGLESEL | LVS_REPORT | LVS_NOCOLUMNHEADER, 50, 50, 100, 100,
 833            info->WinType.hwndNavigation, NULL, hhctrl_hinstance, NULL);
 834     if(!info->tabs[TAB_INDEX].hwnd) {
 835         ERR("Could not create ListView control\n");
 836         return FALSE;
 837     }
 838     memset(&lvc, 0, sizeof(lvc));
 839     lvc.mask = LVCF_TEXT;
 840     lvc.pszText = hidden_column;
 841     if(SendMessageW(info->tabs[TAB_INDEX].hwnd, LVM_INSERTCOLUMNA, 0, (LPARAM) &lvc) == -1)
 842     {
 843         ERR("Could not create ListView column\n");
 844         return FALSE;
 845     }
 846
 847     ResizeTabChild(info, TAB_INDEX);
 848     ShowWindow(info->tabs[TAB_INDEX].hwnd, SW_HIDE);
 849
 850     return TRUE;
 851 }
 852
 853 /* The Index tab's sub-topic popup */
 854
 855 static void ResizePopupChild(HHInfo *info)
 856 {
 857     int scroll_width = GetSystemMetrics(SM_CXVSCROLL);
 858     int border_width = GetSystemMetrics(SM_CXBORDER);
 859     int edge_width = GetSystemMetrics(SM_CXEDGE);
 860     INT width, height;
 861     RECT rect;
 862
 863     if(!info)
 864         return;
 865
 866     GetClientRect(info->popup.hwndPopup, &rect);
 867     SetWindowPos(info->popup.hwndCallback, HWND_TOP, 0, 0,
 868                  rect.right, rect.bottom, SWP_NOMOVE);
 869
 870     rect.left = TAB_MARGIN;
 871     rect.top = TAB_TOP_PADDING + TAB_MARGIN;
 872     rect.right -= TAB_RIGHT_PADDING + TAB_MARGIN;
 873     rect.bottom -= TAB_MARGIN;
 874     width = rect.right-rect.left;
 875     height = rect.bottom-rect.top;
 876
 877     SetWindowPos(info->popup.hwndList, NULL, rect.left, rect.top, width, height,
 878                  SWP_NOZORDER | SWP_NOACTIVATE);
 879
 880     SendMessageW(info->popup.hwndList, LVM_SETCOLUMNWIDTH, 0,
 881                  width-scroll_width-2*border_width-2*edge_width);
 882 }
 883
 884 static LRESULT CALLBACK HelpPopup_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 885 {
 886     HHInfo *info = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 887
 888     switch (message)
 889     {
 890     case WM_SIZE:
 891         ResizePopupChild(info);
 892         return 0;
 893     case WM_DESTROY:
 894         DestroyWindow(hWnd);
 895         return 0;
 896     case WM_CLOSE:
 897         ShowWindow(hWnd, SW_HIDE);
 898         return 0;
 899
 900     default:
 901         return DefWindowProcW(hWnd, message, wParam, lParam);
 902     }
 903
 904     return 0;
 905 }
 906
 907 static LRESULT CALLBACK PopupChild_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 908 {
 909     switch (message)
 910     {
 911     case WM_NOTIFY: {
 912         NMHDR *nmhdr = (NMHDR*)lParam;
 913         if(nmhdr->code == NM_DBLCLK) {
 914             HHInfo *info = (HHInfo*)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 915             IndexSubItem *iter;
 916
 917             if(info == 0 || lParam == 0)
 918                 return 0;
 919             iter = (IndexSubItem*) ((NMITEMACTIVATE *)lParam)->lParam;
 920             if(iter == 0)
 921                 return 0;
 922             NavigateToChm(info, info->index->merge.chm_file, iter->local);
 923             ShowWindow(info->popup.hwndPopup, SW_HIDE);
 924             return 0;
 925         }
 926         break;
 927     }
 928     default:
 929         return DefWindowProcW(hWnd, message, wParam, lParam);
 930     }
 931
 932     return 0;
 933 }
 934
 935 static BOOL AddIndexPopup(HHInfo *info)
 936 {
 937     static const WCHAR szPopupChildClass[] = {'H','H',' ','P','o','p','u','p',' ','C','h','i','l','d',0};
 938     static const WCHAR windowCaptionW[] = {'S','e','l','e','c','t',' ','T','o','p','i','c',':',0};
 939     static const WCHAR windowClassW[] = {'H','H',' ','P','o','p','u','p',0};
 940     HWND hwndList, hwndPopup, hwndCallback;
 941     char hidden_column[] = "Column";
 942     WNDCLASSEXW wcex;
 943     LVCOLUMNA lvc;
 944
 945     if(info->tabs[TAB_INDEX].id == -1)
 946         return TRUE; /* No "Index" tab */
 947
 948     wcex.cbSize         = sizeof(WNDCLASSEXW);
 949     wcex.style          = CS_HREDRAW | CS_VREDRAW;
 950     wcex.lpfnWndProc    = HelpPopup_WndProc;
 951     wcex.cbClsExtra     = 0;
 952     wcex.cbWndExtra     = 0;
 953     wcex.hInstance      = hhctrl_hinstance;
 954     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 955     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
 956     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
 957     wcex.lpszMenuName   = NULL;
 958     wcex.lpszClassName  = windowClassW;
 959     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 960     RegisterClassExW(&wcex);
 961
 962     wcex.cbSize         = sizeof(WNDCLASSEXW);
 963     wcex.style          = 0;
 964     wcex.lpfnWndProc    = PopupChild_WndProc;
 965     wcex.cbClsExtra     = 0;
 966     wcex.cbWndExtra     = 0;
 967     wcex.hInstance      = hhctrl_hinstance;
 968     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 969     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
 970     wcex.hbrBackground  = (HBRUSH)(COLOR_BTNFACE + 1);
 971     wcex.lpszMenuName   = NULL;
 972     wcex.lpszClassName  = szPopupChildClass;
 973     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 974     RegisterClassExW(&wcex);
 975
 976     hwndPopup = CreateWindowExW(WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_APPWINDOW
 977                                  | WS_EX_WINDOWEDGE | WS_EX_RIGHTSCROLLBAR,
 978                                 windowClassW, windowCaptionW, WS_POPUPWINDOW
 979                                  | WS_OVERLAPPEDWINDOW | WS_VISIBLE
 980                                  | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, CW_USEDEFAULT,
 981                                 CW_USEDEFAULT, 300, 200, info->WinType.hwndHelp,
 982                                 NULL, hhctrl_hinstance, NULL);
 983     if (!hwndPopup)
 984         return FALSE;
 985
 986     hwndCallback = CreateWindowExW(WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR,
 987                                    szPopupChildClass, szEmpty, WS_CHILDWINDOW | WS_VISIBLE,
 988                                    0, 0, 0, 0,
 989                                    hwndPopup, NULL, hhctrl_hinstance, NULL);
 990     if (!hwndCallback)
 991         return FALSE;
 992
 993     ShowWindow(hwndPopup, SW_HIDE);
 994     hwndList = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW, szEmpty,
 995                                WS_CHILD | WS_BORDER | LVS_SINGLESEL | LVS_REPORT
 996                                 | LVS_NOCOLUMNHEADER, 50, 50, 100, 100,
 997                                hwndCallback, NULL, hhctrl_hinstance, NULL);
 998     if(!hwndList) {
 999         ERR("Could not create popup ListView control\n");
1000         return FALSE;
1001     }
1002     memset(&lvc, 0, sizeof(lvc));
1003     lvc.mask = LVCF_TEXT;
1004     lvc.pszText = hidden_column;
1005     if(SendMessageW(hwndList, LVM_INSERTCOLUMNA, 0, (LPARAM) &lvc) == -1)
1006     {
1007         ERR("Could not create popup ListView column\n");
1008         return FALSE;
1009     }
1010
1011     info->popup.hwndCallback = hwndCallback;
1012     info->popup.hwndPopup = hwndPopup;
1013     info->popup.hwndList = hwndList;
1014     SetWindowLongPtrW(hwndPopup, GWLP_USERDATA, (LONG_PTR)info);
1015     SetWindowLongPtrW(hwndCallback, GWLP_USERDATA, (LONG_PTR)info);
1016
1017     ResizePopupChild(info);
1018     ShowWindow(hwndList, SW_SHOW);
1019
1020     return TRUE;
1021 }
1022
1023 /* Viewer Window */
1024
1025 static LRESULT Help_OnSize(HWND hWnd)
1026 {
1027     HHInfo *pHHInfo = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
1028     DWORD dwSize;
1029     RECT rc;
1030
1031     if (!pHHInfo)
1032         return 0;
1033
1034     NP_GetNavigationRect(pHHInfo, &rc);
1035     SetWindowPos(pHHInfo->WinType.hwndNavigation, HWND_TOP, 0, 0,
1036                  rc.right, rc.bottom, SWP_NOMOVE);
1037
1038     SB_GetSizeBarRect(pHHInfo, &rc);
1039     SetWindowPos(pHHInfo->hwndSizeBar, HWND_TOP, rc.left, rc.top,
1040                  rc.right, rc.bottom, SWP_SHOWWINDOW);
1041
1042     HP_GetHTMLRect(pHHInfo, &rc);
1043     SetWindowPos(pHHInfo->WinType.hwndHTML, HWND_TOP, rc.left, rc.top,
1044                  rc.right, rc.bottom, SWP_SHOWWINDOW);
1045
1046     /* Resize browser window taking the frame size into account */
1047     dwSize = GetSystemMetrics(SM_CXFRAME);
1048     ResizeWebBrowser(pHHInfo, rc.right - dwSize, rc.bottom - dwSize);
1049
1050     return 0;
1051 }
1052
1053 static LRESULT CALLBACK Help_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
1054 {
1055     switch (message)
1056     {
1057     case WM_COMMAND:
1058         if (HIWORD(wParam) == BN_CLICKED)
1059             TB_OnClick(hWnd, LOWORD(wParam));
1060         break;
1061     case WM_SIZE:
1062         return Help_OnSize(hWnd);
1063     case WM_CLOSE:
1064         ReleaseHelpViewer((HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA));
1065         return 0;
1066     case WM_DESTROY:
1067         if(hh_process)
1068             PostQuitMessage(0);
1069         break;
1070
1071     default:
1072         return DefWindowProcW(hWnd, message, wParam, lParam);
1073     }
1074
1075     return 0;
1076 }
1077
1078 static BOOL HH_CreateHelpWindow(HHInfo *info)
1079 {
1080     HWND hWnd;
1081     RECT winPos = info->WinType.rcWindowPos;
1082     WNDCLASSEXW wcex;
1083     DWORD dwStyles, dwExStyles;
1084     DWORD x, y, width, height;
1085
1086     static const WCHAR windowClassW[] = {
1087         'H','H',' ', 'P','a','r','e','n','t',0
1088     };
1089
1090     wcex.cbSize         = sizeof(WNDCLASSEXW);
1091     wcex.style          = CS_HREDRAW | CS_VREDRAW;
1092     wcex.lpfnWndProc    = Help_WndProc;
1093     wcex.cbClsExtra     = 0;
1094     wcex.cbWndExtra     = 0;
1095     wcex.hInstance      = hhctrl_hinstance;
1096     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1097     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
1098     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
1099     wcex.lpszMenuName   = NULL;
1100     wcex.lpszClassName  = windowClassW;
1101     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1102
1103     RegisterClassExW(&wcex);
1104
1105     /* Read in window parameters if available */
1106     if (info->WinType.fsValidMembers & HHWIN_PARAM_STYLES)
1107         dwStyles = info->WinType.dwStyles | WS_OVERLAPPEDWINDOW;
1108     else
1109         dwStyles = WS_OVERLAPPEDWINDOW | WS_VISIBLE |
1110                    WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
1111
1112     if (info->WinType.fsValidMembers & HHWIN_PARAM_EXSTYLES)
1113         dwExStyles = info->WinType.dwExStyles;
1114     else
1115         dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_APPWINDOW |
1116                      WS_EX_WINDOWEDGE | WS_EX_RIGHTSCROLLBAR;
1117
1118     if (info->WinType.fsValidMembers & HHWIN_PARAM_RECT)
1119     {
1120         x = winPos.left;
1121         y = winPos.top;
1122         width = winPos.right - x;
1123         height = winPos.bottom - y;
1124     }
1125     else
1126     {
1127         x = WINTYPE_DEFAULT_X;
1128         y = WINTYPE_DEFAULT_Y;
1129         width = WINTYPE_DEFAULT_WIDTH;
1130         height = WINTYPE_DEFAULT_HEIGHT;
1131     }
1132
1133     hWnd = CreateWindowExW(dwExStyles, windowClassW, info->WinType.pszCaption,
1134                            dwStyles, x, y, width, height, NULL, NULL, hhctrl_hinstance, NULL);
1135     if (!hWnd)
1136         return FALSE;
1137
1138     ShowWindow(hWnd, SW_SHOW);
1139     UpdateWindow(hWnd);
1140
1141     /* store the pointer to the HH info struct */
1142     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)info);
1143
1144     info->WinType.hwndHelp = hWnd;
1145     return TRUE;
1146 }
1147
1148 static void HH_CreateFont(HHInfo *pHHInfo)
1149 {
1150     LOGFONTW lf;
1151
1152     GetObjectW(GetStockObject(ANSI_VAR_FONT), sizeof(LOGFONTW), &lf);
1153     lf.lfWeight = FW_NORMAL;
1154     lf.lfItalic = FALSE;
1155     lf.lfUnderline = FALSE;
1156
1157     pHHInfo->hFont = CreateFontIndirectW(&lf);
1158 }
1159
1160 static void HH_InitRequiredControls(DWORD dwControls)
1161 {
1162     INITCOMMONCONTROLSEX icex;
1163
1164     icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
1165     icex.dwICC = dwControls;
1166     InitCommonControlsEx(&icex);
1167 }
1168
1169 /* Creates the whole package */
1170 static BOOL CreateViewer(HHInfo *pHHInfo)
1171 {
1172     HH_CreateFont(pHHInfo);
1173
1174     if (!HH_CreateHelpWindow(pHHInfo))
1175         return FALSE;
1176
1177     HH_InitRequiredControls(ICC_BAR_CLASSES);
1178
1179     if (!HH_AddToolbar(pHHInfo))
1180         return FALSE;
1181
1182     HH_RegisterChildWndClass(pHHInfo);
1183
1184     if (!HH_AddNavigationPane(pHHInfo))
1185         return FALSE;
1186
1187     HH_RegisterSizeBarClass(pHHInfo);
1188
1189     if (!HH_AddSizeBar(pHHInfo))
1190         return FALSE;
1191
1192     if (!HH_AddHTMLPane(pHHInfo))
1193         return FALSE;
1194
1195     if (!AddContentTab(pHHInfo))
1196         return FALSE;
1197
1198     if (!AddIndexTab(pHHInfo))
1199         return FALSE;
1200
1201     if (!AddIndexPopup(pHHInfo))
1202         return FALSE;
1203
1204     InitContent(pHHInfo);
1205     InitIndex(pHHInfo);
1206
1207     return TRUE;
1208 }
1209
1210 void ReleaseHelpViewer(HHInfo *info)
1211 {
1212     TRACE("(%p)\n", info);
1213
1214     if (!info)
1215         return;
1216
1217     /* Free allocated strings */
1218     heap_free(info->pszType);
1219     heap_free(info->pszCaption);
1220     heap_free(info->pszToc);
1221     heap_free(info->pszIndex);
1222     heap_free(info->pszFile);
1223     heap_free(info->pszHome);
1224     heap_free(info->pszJump1);
1225     heap_free(info->pszJump2);
1226     heap_free(info->pszUrlJump1);
1227     heap_free(info->pszUrlJump2);
1228
1229     if (info->pCHMInfo)
1230         CloseCHM(info->pCHMInfo);
1231
1232     ReleaseWebBrowser(info);
1233     ReleaseContent(info);
1234     ReleaseIndex(info);
1235
1236     if(info->WinType.hwndHelp)
1237         DestroyWindow(info->WinType.hwndHelp);
1238
1239     heap_free(info);
1240     OleUninitialize();
1241 }
1242
1243 HHInfo *CreateHelpViewer(LPCWSTR filename)
1244 {
1245     HHInfo *info = heap_alloc_zero(sizeof(HHInfo));
1246     int i;
1247
1248     /* Set the invalid tab ID (-1) as the default value for all
1249      * of the tabs, this matches a failed TCM_INSERTITEM call.
1250      */
1251     for(i=0;i<sizeof(info->tabs)/sizeof(HHTab);i++)
1252         info->tabs[i].id = -1;
1253
1254     OleInitialize(NULL);
1255
1256     info->pCHMInfo = OpenCHM(filename);
1257     if(!info->pCHMInfo) {
1258         ReleaseHelpViewer(info);
1259         return NULL;
1260     }
1261
1262     if (!LoadWinTypeFromCHM(info)) {
1263         ReleaseHelpViewer(info);
1264         return NULL;
1265     }
1266
1267     if(!CreateViewer(info)) {
1268         ReleaseHelpViewer(info);
1269         return NULL;
1270     }
1271
1272     return info;
1273 }