git.oblomov.eu Git - wine/blob - 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         chmfile = citer->merge.chm_file;
 423         break;
 424     case TAB_INDEX:
 425         iiter = (IndexItem *) user_data;
 426         if(iiter->nItems == 0) {
 427             FIXME("No entries for this item!\n");
 428             return 0;
 429         }
 430         if(iiter->nItems > 1) {
 431             int i = 0;
 432             LVITEMW lvi;
 433
 434             SendMessageW(info->popup.hwndList, LVM_DELETEALLITEMS, 0, 0);
 435             for(i=0;i<iiter->nItems;i++) {
 436                 IndexSubItem *item = &iiter->items[i];
 437                 WCHAR *name = iiter->keyword;
 438
 439                 if(item->name)
 440                     name = item->name;
 441                 memset(&lvi, 0, sizeof(lvi));
 442                 lvi.iItem = i;
 443                 lvi.mask = LVIF_TEXT|LVIF_PARAM;
 444                 lvi.cchTextMax = strlenW(name)+1;
 445                 lvi.pszText = name;
 446                 lvi.lParam = (LPARAM) item;
 447                 SendMessageW(info->popup.hwndList, LVM_INSERTITEMW, 0, (LPARAM)&lvi);
 448             }
 449             ShowWindow(info->popup.hwndPopup, SW_SHOW);
 450             return 0;
 451         }
 452         name = iiter->items[0].name;
 453         local = iiter->items[0].local;
 454         chmfile = iiter->merge.chm_file;
 455         break;
 456     default:
 457         FIXME("Unhandled operation for this tab!\n");
 458         return 0;
 459     }
 460
 461     TRACE("name %s loal %s\n", debugstr_w(name), debugstr_w(local));
 462
 463     NavigateToChm(info, chmfile, local);
 464     return 0;
 465 }
 466
 467 static LRESULT CALLBACK Child_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 468 {
 469     switch (message)
 470     {
 471     case WM_PAINT:
 472         return Child_OnPaint(hWnd);
 473     case WM_SIZE:
 474         return Child_OnSize(hWnd);
 475     case WM_NOTIFY: {
 476         HHInfo *info = (HHInfo*)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 477         NMHDR *nmhdr = (NMHDR*)lParam;
 478
 479         switch(nmhdr->code) {
 480         case TCN_SELCHANGE:
 481             return OnTabChange(hWnd);
 482         case TVN_SELCHANGEDW:
 483             return OnTopicChange(info, (void*)((NMTREEVIEWW *)lParam)->itemNew.lParam);
 484         case NM_DBLCLK:
 485             if(info->current_tab == TAB_INDEX)
 486                 return OnTopicChange(info, (void*)((NMITEMACTIVATE *)lParam)->lParam);
 487         }
 488         break;
 489     }
 490     default:
 491         return DefWindowProcW(hWnd, message, wParam, lParam);
 492     }
 493
 494     return 0;
 495 }
 496
 497 static void HH_RegisterChildWndClass(HHInfo *pHHInfo)
 498 {
 499     WNDCLASSEXW wcex;
 500
 501     wcex.cbSize         = sizeof(WNDCLASSEXW);
 502     wcex.style          = 0;
 503     wcex.lpfnWndProc    = Child_WndProc;
 504     wcex.cbClsExtra     = 0;
 505     wcex.cbWndExtra     = 0;
 506     wcex.hInstance      = hhctrl_hinstance;
 507     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 508     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
 509     wcex.hbrBackground  = (HBRUSH)(COLOR_BTNFACE + 1);
 510     wcex.lpszMenuName   = NULL;
 511     wcex.lpszClassName  = szChildClass;
 512     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 513
 514     RegisterClassExW(&wcex);
 515 }
 516
 517 /* Toolbar */
 518
 519 #define ICON_SIZE   20
 520
 521 static void TB_OnClick(HWND hWnd, DWORD dwID)
 522 {
 523     HHInfo *info = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 524
 525     switch (dwID)
 526     {
 527         case IDTB_STOP:
 528             DoPageAction(info, WB_STOP);
 529             break;
 530         case IDTB_REFRESH:
 531             DoPageAction(info, WB_REFRESH);
 532             break;
 533         case IDTB_BACK:
 534             DoPageAction(info, WB_GOBACK);
 535             break;
 536         case IDTB_HOME:
 537             NavigateToChm(info, info->pCHMInfo->szFile, info->WinType.pszHome);
 538             break;
 539         case IDTB_FORWARD:
 540             DoPageAction(info, WB_GOFORWARD);
 541             break;
 542         case IDTB_EXPAND:
 543         case IDTB_CONTRACT:
 544         case IDTB_SYNC:
 545         case IDTB_PRINT:
 546         case IDTB_OPTIONS:
 547         case IDTB_BROWSE_FWD:
 548         case IDTB_BROWSE_BACK:
 549         case IDTB_JUMP1:
 550         case IDTB_JUMP2:
 551         case IDTB_CUSTOMIZE:
 552         case IDTB_ZOOM:
 553         case IDTB_TOC_NEXT:
 554         case IDTB_TOC_PREV:
 555             break;
 556     }
 557 }
 558
 559 static void TB_AddButton(TBBUTTON *pButtons, DWORD dwIndex, DWORD dwID)
 560 {
 561     /* FIXME: Load the correct button bitmaps */
 562     pButtons[dwIndex].iBitmap = STD_PRINT;
 563     pButtons[dwIndex].idCommand = dwID;
 564     pButtons[dwIndex].fsState = TBSTATE_ENABLED;
 565     pButtons[dwIndex].fsStyle = BTNS_BUTTON;
 566     pButtons[dwIndex].dwData = 0;
 567     pButtons[dwIndex].iString = 0;
 568 }
 569
 570 static void TB_AddButtonsFromFlags(TBBUTTON *pButtons, DWORD dwButtonFlags, LPDWORD pdwNumButtons)
 571 {
 572     *pdwNumButtons = 0;
 573
 574     if (dwButtonFlags & HHWIN_BUTTON_EXPAND)
 575         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_EXPAND);
 576
 577     if (dwButtonFlags & HHWIN_BUTTON_BACK)
 578         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_BACK);
 579
 580     if (dwButtonFlags & HHWIN_BUTTON_FORWARD)
 581         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_FORWARD);
 582
 583     if (dwButtonFlags & HHWIN_BUTTON_STOP)
 584         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_STOP);
 585
 586     if (dwButtonFlags & HHWIN_BUTTON_REFRESH)
 587         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_REFRESH);
 588
 589     if (dwButtonFlags & HHWIN_BUTTON_HOME)
 590         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_HOME);
 591
 592     if (dwButtonFlags & HHWIN_BUTTON_SYNC)
 593         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_SYNC);
 594
 595     if (dwButtonFlags & HHWIN_BUTTON_OPTIONS)
 596         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_OPTIONS);
 597
 598     if (dwButtonFlags & HHWIN_BUTTON_PRINT)
 599         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_PRINT);
 600
 601     if (dwButtonFlags & HHWIN_BUTTON_JUMP1)
 602         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_JUMP1);
 603
 604     if (dwButtonFlags & HHWIN_BUTTON_JUMP2)
 605         TB_AddButton(pButtons,(*pdwNumButtons)++, IDTB_JUMP2);
 606
 607     if (dwButtonFlags & HHWIN_BUTTON_ZOOM)
 608         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_ZOOM);
 609
 610     if (dwButtonFlags & HHWIN_BUTTON_TOC_NEXT)
 611         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_TOC_NEXT);
 612
 613     if (dwButtonFlags & HHWIN_BUTTON_TOC_PREV)
 614         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_TOC_PREV);
 615 }
 616
 617 static BOOL HH_AddToolbar(HHInfo *pHHInfo)
 618 {
 619     HWND hToolbar;
 620     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 621     DWORD toolbarFlags;
 622     TBBUTTON buttons[IDTB_TOC_PREV - IDTB_EXPAND];
 623     TBADDBITMAP tbAB;
 624     DWORD dwStyles, dwExStyles;
 625     DWORD dwNumButtons, dwIndex;
 626
 627     if (pHHInfo->WinType.fsWinProperties & HHWIN_PARAM_TB_FLAGS)
 628         toolbarFlags = pHHInfo->WinType.fsToolBarFlags;
 629     else
 630         toolbarFlags = HHWIN_DEF_BUTTONS;
 631
 632     TB_AddButtonsFromFlags(buttons, toolbarFlags, &dwNumButtons);
 633
 634     dwStyles = WS_CHILDWINDOW | WS_VISIBLE | TBSTYLE_FLAT |
 635                TBSTYLE_WRAPABLE | TBSTYLE_TOOLTIPS | CCS_NODIVIDER;
 636     dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 637
 638     hToolbar = CreateWindowExW(dwExStyles, TOOLBARCLASSNAMEW, NULL, dwStyles,
 639                                0, 0, 0, 0, hwndParent, NULL,
 640                                hhctrl_hinstance, NULL);
 641     if (!hToolbar)
 642         return FALSE;
 643
 644     SendMessageW(hToolbar, TB_SETBITMAPSIZE, 0, MAKELONG(ICON_SIZE, ICON_SIZE));
 645     SendMessageW(hToolbar, TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);
 646     SendMessageW(hToolbar, WM_SETFONT, (WPARAM)pHHInfo->hFont, TRUE);
 647
 648     /* FIXME: Load correct icons for all buttons */
 649     tbAB.hInst = HINST_COMMCTRL;
 650     tbAB.nID = IDB_STD_LARGE_COLOR;
 651     SendMessageW(hToolbar, TB_ADDBITMAP, 0, (LPARAM)&tbAB);
 652
 653     for (dwIndex = 0; dwIndex < dwNumButtons; dwIndex++)
 654     {
 655         LPWSTR szBuf = HH_LoadString(buttons[dwIndex].idCommand);
 656         DWORD dwLen = strlenW(szBuf);
 657         szBuf[dwLen + 1] = 0; /* Double-null terminate */
 658
 659         buttons[dwIndex].iString = (DWORD)SendMessageW(hToolbar, TB_ADDSTRINGW, 0, (LPARAM)szBuf);
 660         heap_free(szBuf);
 661     }
 662
 663     SendMessageW(hToolbar, TB_ADDBUTTONSW, dwNumButtons, (LPARAM)buttons);
 664     SendMessageW(hToolbar, TB_AUTOSIZE, 0, 0);
 665     ShowWindow(hToolbar, SW_SHOW);
 666
 667     pHHInfo->WinType.hwndToolBar = hToolbar;
 668     return TRUE;
 669 }
 670
 671 /* Navigation Pane */
 672
 673 static void NP_GetNavigationRect(HHInfo *pHHInfo, RECT *rc)
 674 {
 675     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 676     HWND hwndToolbar = pHHInfo->WinType.hwndToolBar;
 677     RECT rectWND, rectTB;
 678
 679     GetClientRect(hwndParent, &rectWND);
 680     GetClientRect(hwndToolbar, &rectTB);
 681
 682     rc->left = 0;
 683     rc->top = rectTB.bottom;
 684     rc->bottom = rectWND.bottom - rectTB.bottom;
 685
 686     if (!(pHHInfo->WinType.fsValidMembers & HHWIN_PARAM_NAV_WIDTH) &&
 687           pHHInfo->WinType.iNavWidth == 0)
 688     {
 689         pHHInfo->WinType.iNavWidth = WINTYPE_DEFAULT_NAVWIDTH;
 690     }
 691
 692     rc->right = pHHInfo->WinType.iNavWidth;
 693 }
 694
 695 static DWORD NP_CreateTab(HINSTANCE hInstance, HWND hwndTabCtrl, DWORD index)
 696 {
 697     TCITEMW tie;
 698     LPWSTR tabText = HH_LoadString(index);
 699     DWORD ret;
 700
 701     tie.mask = TCIF_TEXT;
 702     tie.pszText = tabText;
 703
 704     ret = SendMessageW( hwndTabCtrl, TCM_INSERTITEMW, index, (LPARAM)&tie );
 705
 706     heap_free(tabText);
 707     return ret;
 708 }
 709
 710 static BOOL HH_AddNavigationPane(HHInfo *info)
 711 {
 712     HWND hWnd, hwndTabCtrl;
 713     HWND hwndParent = info->WinType.hwndHelp;
 714     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE;
 715     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 716     RECT rc;
 717
 718     NP_GetNavigationRect(info, &rc);
 719
 720     hWnd = CreateWindowExW(dwExStyles, szChildClass, szEmpty, dwStyles,
 721                            rc.left, rc.top, rc.right, rc.bottom,
 722                            hwndParent, NULL, hhctrl_hinstance, NULL);
 723     if (!hWnd)
 724         return FALSE;
 725
 726     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)info);
 727
 728     hwndTabCtrl = CreateWindowExW(dwExStyles, WC_TABCONTROLW, szEmpty, dwStyles,
 729                                   0, TAB_TOP_PADDING,
 730                                   rc.right - TAB_RIGHT_PADDING,
 731                                   rc.bottom - TAB_TOP_PADDING,
 732                                   hWnd, NULL, hhctrl_hinstance, NULL);
 733     if (!hwndTabCtrl)
 734         return FALSE;
 735
 736     if (*info->WinType.pszToc)
 737         info->tabs[TAB_CONTENTS].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_CONTENTS);
 738
 739     if (*info->WinType.pszIndex)
 740         info->tabs[TAB_INDEX].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_INDEX);
 741
 742     if (info->WinType.fsWinProperties & HHWIN_PROP_TAB_SEARCH)
 743         info->tabs[TAB_SEARCH].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_SEARCH);
 744
 745     if (info->WinType.fsWinProperties & HHWIN_PROP_TAB_FAVORITES)
 746         info->tabs[TAB_FAVORITES].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_FAVORITES);
 747
 748     SendMessageW(hwndTabCtrl, WM_SETFONT, (WPARAM)info->hFont, TRUE);
 749
 750     info->hwndTabCtrl = hwndTabCtrl;
 751     info->WinType.hwndNavigation = hWnd;
 752     return TRUE;
 753 }
 754
 755 /* HTML Pane */
 756
 757 static void HP_GetHTMLRect(HHInfo *info, RECT *rc)
 758 {
 759     RECT rectTB, rectWND, rectNP, rectSB;
 760
 761     GetClientRect(info->WinType.hwndHelp, &rectWND);
 762     GetClientRect(info->WinType.hwndToolBar, &rectTB);
 763     GetClientRect(info->WinType.hwndNavigation, &rectNP);
 764     GetClientRect(info->hwndSizeBar, &rectSB);
 765
 766     rc->left = rectNP.right + rectSB.right;
 767     rc->top = rectTB.bottom;
 768     rc->right = rectWND.right - rc->left;
 769     rc->bottom = rectWND.bottom - rectTB.bottom;
 770 }
 771
 772 static BOOL HH_AddHTMLPane(HHInfo *pHHInfo)
 773 {
 774     HWND hWnd;
 775     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 776     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE | WS_CLIPCHILDREN;
 777     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR | WS_EX_CLIENTEDGE;
 778     RECT rc;
 779
 780     HP_GetHTMLRect(pHHInfo, &rc);
 781
 782     hWnd = CreateWindowExW(dwExStyles, szChildClass, szEmpty, dwStyles,
 783                            rc.left, rc.top, rc.right, rc.bottom,
 784                            hwndParent, NULL, hhctrl_hinstance, NULL);
 785     if (!hWnd)
 786         return FALSE;
 787
 788     if (!InitWebBrowser(pHHInfo, hWnd))
 789         return FALSE;
 790
 791     /* store the pointer to the HH info struct */
 792     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)pHHInfo);
 793
 794     ShowWindow(hWnd, SW_SHOW);
 795     UpdateWindow(hWnd);
 796
 797     pHHInfo->WinType.hwndHTML = hWnd;
 798     return TRUE;
 799 }
 800
 801 static BOOL AddContentTab(HHInfo *info)
 802 {
 803     if(info->tabs[TAB_CONTENTS].id == -1)
 804         return TRUE; /* No "Contents" tab */
 805     info->tabs[TAB_CONTENTS].hwnd = CreateWindowExW(WS_EX_CLIENTEDGE, WC_TREEVIEWW,
 806            szEmpty, WS_CHILD | WS_BORDER | 0x25, 50, 50, 100, 100,
 807            info->WinType.hwndNavigation, NULL, hhctrl_hinstance, NULL);
 808     if(!info->tabs[TAB_CONTENTS].hwnd) {
 809         ERR("Could not create treeview control\n");
 810         return FALSE;
 811     }
 812
 813     ResizeTabChild(info, TAB_CONTENTS);
 814     ShowWindow(info->tabs[TAB_CONTENTS].hwnd, SW_SHOW);
 815
 816     return TRUE;
 817 }
 818
 819 static BOOL AddIndexTab(HHInfo *info)
 820 {
 821     char hidden_column[] = "Column";
 822     LVCOLUMNA lvc;
 823
 824     if(info->tabs[TAB_INDEX].id == -1)
 825         return TRUE; /* No "Index" tab */
 826     info->tabs[TAB_INDEX].hwnd = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW,
 827            szEmpty, WS_CHILD | WS_BORDER | LVS_SINGLESEL | LVS_REPORT | LVS_NOCOLUMNHEADER, 50, 50, 100, 100,
 828            info->WinType.hwndNavigation, NULL, hhctrl_hinstance, NULL);
 829     if(!info->tabs[TAB_INDEX].hwnd) {
 830         ERR("Could not create ListView control\n");
 831         return FALSE;
 832     }
 833     memset(&lvc, 0, sizeof(lvc));
 834     lvc.mask = LVCF_TEXT;
 835     lvc.pszText = hidden_column;
 836     if(SendMessageW(info->tabs[TAB_INDEX].hwnd, LVM_INSERTCOLUMNA, 0, (LPARAM) &lvc) == -1)
 837     {
 838         ERR("Could not create ListView column\n");
 839         return FALSE;
 840     }
 841
 842     ResizeTabChild(info, TAB_INDEX);
 843     ShowWindow(info->tabs[TAB_INDEX].hwnd, SW_HIDE);
 844
 845     return TRUE;
 846 }
 847
 848 /* The Index tab's sub-topic popup */
 849
 850 static void ResizePopupChild(HHInfo *info)
 851 {
 852     int scroll_width = GetSystemMetrics(SM_CXVSCROLL);
 853     int border_width = GetSystemMetrics(SM_CXBORDER);
 854     int edge_width = GetSystemMetrics(SM_CXEDGE);
 855     INT width, height;
 856     RECT rect;
 857
 858     if(!info)
 859         return;
 860
 861     GetClientRect(info->popup.hwndPopup, &rect);
 862     SetWindowPos(info->popup.hwndCallback, HWND_TOP, 0, 0,
 863                  rect.right, rect.bottom, SWP_NOMOVE);
 864
 865     rect.left = TAB_MARGIN;
 866     rect.top = TAB_TOP_PADDING + TAB_MARGIN;
 867     rect.right -= TAB_RIGHT_PADDING + TAB_MARGIN;
 868     rect.bottom -= TAB_MARGIN;
 869     width = rect.right-rect.left;
 870     height = rect.bottom-rect.top;
 871
 872     SetWindowPos(info->popup.hwndList, NULL, rect.left, rect.top, width, height,
 873                  SWP_NOZORDER | SWP_NOACTIVATE);
 874
 875     SendMessageW(info->popup.hwndList, LVM_SETCOLUMNWIDTH, 0,
 876                  width-scroll_width-2*border_width-2*edge_width);
 877 }
 878
 879 static LRESULT CALLBACK HelpPopup_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 880 {
 881     HHInfo *info = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 882
 883     switch (message)
 884     {
 885     case WM_SIZE:
 886         ResizePopupChild(info);
 887         return 0;
 888     case WM_DESTROY:
 889         DestroyWindow(hWnd);
 890         return 0;
 891     case WM_CLOSE:
 892         ShowWindow(hWnd, SW_HIDE);
 893         return 0;
 894
 895     default:
 896         return DefWindowProcW(hWnd, message, wParam, lParam);
 897     }
 898
 899     return 0;
 900 }
 901
 902 static LRESULT CALLBACK PopupChild_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 903 {
 904     switch (message)
 905     {
 906     case WM_NOTIFY: {
 907         NMHDR *nmhdr = (NMHDR*)lParam;
 908         if(nmhdr->code == NM_DBLCLK) {
 909             HHInfo *info = (HHInfo*)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 910             IndexSubItem *iter;
 911
 912             if(info == 0 || lParam == 0)
 913                 return 0;
 914             iter = (IndexSubItem*) ((NMITEMACTIVATE *)lParam)->lParam;
 915             if(iter == 0)
 916                 return 0;
 917             NavigateToChm(info, info->index->merge.chm_file, iter->local);
 918             ShowWindow(info->popup.hwndPopup, SW_HIDE);
 919             return 0;
 920         }
 921         break;
 922     }
 923     default:
 924         return DefWindowProcW(hWnd, message, wParam, lParam);
 925     }
 926
 927     return 0;
 928 }
 929
 930 static BOOL AddIndexPopup(HHInfo *info)
 931 {
 932     static const WCHAR szPopupChildClass[] = {'H','H',' ','P','o','p','u','p',' ','C','h','i','l','d',0};
 933     static const WCHAR windowCaptionW[] = {'S','e','l','e','c','t',' ','T','o','p','i','c',':',0};
 934     static const WCHAR windowClassW[] = {'H','H',' ','P','o','p','u','p',0};
 935     HWND hwndList, hwndPopup, hwndCallback;
 936     char hidden_column[] = "Column";
 937     WNDCLASSEXW wcex;
 938     LVCOLUMNA lvc;
 939
 940     if(info->tabs[TAB_INDEX].id == -1)
 941         return TRUE; /* No "Index" tab */
 942
 943     wcex.cbSize         = sizeof(WNDCLASSEXW);
 944     wcex.style          = CS_HREDRAW | CS_VREDRAW;
 945     wcex.lpfnWndProc    = HelpPopup_WndProc;
 946     wcex.cbClsExtra     = 0;
 947     wcex.cbWndExtra     = 0;
 948     wcex.hInstance      = hhctrl_hinstance;
 949     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 950     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
 951     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
 952     wcex.lpszMenuName   = NULL;
 953     wcex.lpszClassName  = windowClassW;
 954     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 955     RegisterClassExW(&wcex);
 956
 957     wcex.cbSize         = sizeof(WNDCLASSEXW);
 958     wcex.style          = 0;
 959     wcex.lpfnWndProc    = PopupChild_WndProc;
 960     wcex.cbClsExtra     = 0;
 961     wcex.cbWndExtra     = 0;
 962     wcex.hInstance      = hhctrl_hinstance;
 963     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 964     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
 965     wcex.hbrBackground  = (HBRUSH)(COLOR_BTNFACE + 1);
 966     wcex.lpszMenuName   = NULL;
 967     wcex.lpszClassName  = szPopupChildClass;
 968     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 969     RegisterClassExW(&wcex);
 970
 971     hwndPopup = CreateWindowExW(WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_APPWINDOW
 972                                  | WS_EX_WINDOWEDGE | WS_EX_RIGHTSCROLLBAR,
 973                                 windowClassW, windowCaptionW, WS_POPUPWINDOW
 974                                  | WS_OVERLAPPEDWINDOW | WS_VISIBLE
 975                                  | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, CW_USEDEFAULT,
 976                                 CW_USEDEFAULT, 300, 200, info->WinType.hwndHelp,
 977                                 NULL, hhctrl_hinstance, NULL);
 978     if (!hwndPopup)
 979         return FALSE;
 980
 981     hwndCallback = CreateWindowExW(WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR,
 982                                    szPopupChildClass, szEmpty, WS_CHILDWINDOW | WS_VISIBLE,
 983                                    0, 0, 0, 0,
 984                                    hwndPopup, NULL, hhctrl_hinstance, NULL);
 985     if (!hwndCallback)
 986         return FALSE;
 987
 988     ShowWindow(hwndPopup, SW_HIDE);
 989     hwndList = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW, szEmpty,
 990                                WS_CHILD | WS_BORDER | LVS_SINGLESEL | LVS_REPORT
 991                                 | LVS_NOCOLUMNHEADER, 50, 50, 100, 100,
 992                                hwndCallback, NULL, hhctrl_hinstance, NULL);
 993     if(!hwndList) {
 994         ERR("Could not create popup ListView control\n");
 995         return FALSE;
 996     }
 997     memset(&lvc, 0, sizeof(lvc));
 998     lvc.mask = LVCF_TEXT;
 999     lvc.pszText = hidden_column;
1000     if(SendMessageW(hwndList, LVM_INSERTCOLUMNA, 0, (LPARAM) &lvc) == -1)
1001     {
1002         ERR("Could not create popup ListView column\n");
1003         return FALSE;
1004     }
1005
1006     info->popup.hwndCallback = hwndCallback;
1007     info->popup.hwndPopup = hwndPopup;
1008     info->popup.hwndList = hwndList;
1009     SetWindowLongPtrW(hwndPopup, GWLP_USERDATA, (LONG_PTR)info);
1010     SetWindowLongPtrW(hwndCallback, GWLP_USERDATA, (LONG_PTR)info);
1011
1012     ResizePopupChild(info);
1013     ShowWindow(hwndList, SW_SHOW);
1014
1015     return TRUE;
1016 }
1017
1018 /* Viewer Window */
1019
1020 static LRESULT Help_OnSize(HWND hWnd)
1021 {
1022     HHInfo *pHHInfo = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
1023     DWORD dwSize;
1024     RECT rc;
1025
1026     if (!pHHInfo)
1027         return 0;
1028
1029     NP_GetNavigationRect(pHHInfo, &rc);
1030     SetWindowPos(pHHInfo->WinType.hwndNavigation, HWND_TOP, 0, 0,
1031                  rc.right, rc.bottom, SWP_NOMOVE);
1032
1033     SB_GetSizeBarRect(pHHInfo, &rc);
1034     SetWindowPos(pHHInfo->hwndSizeBar, HWND_TOP, rc.left, rc.top,
1035                  rc.right, rc.bottom, SWP_SHOWWINDOW);
1036
1037     HP_GetHTMLRect(pHHInfo, &rc);
1038     SetWindowPos(pHHInfo->WinType.hwndHTML, HWND_TOP, rc.left, rc.top,
1039                  rc.right, rc.bottom, SWP_SHOWWINDOW);
1040
1041     /* Resize browser window taking the frame size into account */
1042     dwSize = GetSystemMetrics(SM_CXFRAME);
1043     ResizeWebBrowser(pHHInfo, rc.right - dwSize, rc.bottom - dwSize);
1044
1045     return 0;
1046 }
1047
1048 static LRESULT CALLBACK Help_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
1049 {
1050     switch (message)
1051     {
1052     case WM_COMMAND:
1053         if (HIWORD(wParam) == BN_CLICKED)
1054             TB_OnClick(hWnd, LOWORD(wParam));
1055         break;
1056     case WM_SIZE:
1057         return Help_OnSize(hWnd);
1058     case WM_CLOSE:
1059         ReleaseHelpViewer((HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA));
1060         return 0;
1061     case WM_DESTROY:
1062         if(hh_process)
1063             PostQuitMessage(0);
1064         break;
1065
1066     default:
1067         return DefWindowProcW(hWnd, message, wParam, lParam);
1068     }
1069
1070     return 0;
1071 }
1072
1073 static BOOL HH_CreateHelpWindow(HHInfo *info)
1074 {
1075     HWND hWnd;
1076     RECT winPos = info->WinType.rcWindowPos;
1077     WNDCLASSEXW wcex;
1078     DWORD dwStyles, dwExStyles;
1079     DWORD x, y, width, height;
1080
1081     static const WCHAR windowClassW[] = {
1082         'H','H',' ', 'P','a','r','e','n','t',0
1083     };
1084
1085     wcex.cbSize         = sizeof(WNDCLASSEXW);
1086     wcex.style          = CS_HREDRAW | CS_VREDRAW;
1087     wcex.lpfnWndProc    = Help_WndProc;
1088     wcex.cbClsExtra     = 0;
1089     wcex.cbWndExtra     = 0;
1090     wcex.hInstance      = hhctrl_hinstance;
1091     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1092     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
1093     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
1094     wcex.lpszMenuName   = NULL;
1095     wcex.lpszClassName  = windowClassW;
1096     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1097
1098     RegisterClassExW(&wcex);
1099
1100     /* Read in window parameters if available */
1101     if (info->WinType.fsValidMembers & HHWIN_PARAM_STYLES)
1102         dwStyles = info->WinType.dwStyles | WS_OVERLAPPEDWINDOW;
1103     else
1104         dwStyles = WS_OVERLAPPEDWINDOW | WS_VISIBLE |
1105                    WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
1106
1107     if (info->WinType.fsValidMembers & HHWIN_PARAM_EXSTYLES)
1108         dwExStyles = info->WinType.dwExStyles;
1109     else
1110         dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_APPWINDOW |
1111                      WS_EX_WINDOWEDGE | WS_EX_RIGHTSCROLLBAR;
1112
1113     if (info->WinType.fsValidMembers & HHWIN_PARAM_RECT)
1114     {
1115         x = winPos.left;
1116         y = winPos.top;
1117         width = winPos.right - x;
1118         height = winPos.bottom - y;
1119     }
1120     else
1121     {
1122         x = WINTYPE_DEFAULT_X;
1123         y = WINTYPE_DEFAULT_Y;
1124         width = WINTYPE_DEFAULT_WIDTH;
1125         height = WINTYPE_DEFAULT_HEIGHT;
1126     }
1127
1128     hWnd = CreateWindowExW(dwExStyles, windowClassW, info->WinType.pszCaption,
1129                            dwStyles, x, y, width, height, NULL, NULL, hhctrl_hinstance, NULL);
1130     if (!hWnd)
1131         return FALSE;
1132
1133     ShowWindow(hWnd, SW_SHOW);
1134     UpdateWindow(hWnd);
1135
1136     /* store the pointer to the HH info struct */
1137     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)info);
1138
1139     info->WinType.hwndHelp = hWnd;
1140     return TRUE;
1141 }
1142
1143 static void HH_CreateFont(HHInfo *pHHInfo)
1144 {
1145     LOGFONTW lf;
1146
1147     GetObjectW(GetStockObject(ANSI_VAR_FONT), sizeof(LOGFONTW), &lf);
1148     lf.lfWeight = FW_NORMAL;
1149     lf.lfItalic = FALSE;
1150     lf.lfUnderline = FALSE;
1151
1152     pHHInfo->hFont = CreateFontIndirectW(&lf);
1153 }
1154
1155 static void HH_InitRequiredControls(DWORD dwControls)
1156 {
1157     INITCOMMONCONTROLSEX icex;
1158
1159     icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
1160     icex.dwICC = dwControls;
1161     InitCommonControlsEx(&icex);
1162 }
1163
1164 /* Creates the whole package */
1165 static BOOL CreateViewer(HHInfo *pHHInfo)
1166 {
1167     HH_CreateFont(pHHInfo);
1168
1169     if (!HH_CreateHelpWindow(pHHInfo))
1170         return FALSE;
1171
1172     HH_InitRequiredControls(ICC_BAR_CLASSES);
1173
1174     if (!HH_AddToolbar(pHHInfo))
1175         return FALSE;
1176
1177     HH_RegisterChildWndClass(pHHInfo);
1178
1179     if (!HH_AddNavigationPane(pHHInfo))
1180         return FALSE;
1181
1182     HH_RegisterSizeBarClass(pHHInfo);
1183
1184     if (!HH_AddSizeBar(pHHInfo))
1185         return FALSE;
1186
1187     if (!HH_AddHTMLPane(pHHInfo))
1188         return FALSE;
1189
1190     if (!AddContentTab(pHHInfo))
1191         return FALSE;
1192
1193     if (!AddIndexTab(pHHInfo))
1194         return FALSE;
1195
1196     if (!AddIndexPopup(pHHInfo))
1197         return FALSE;
1198
1199     InitContent(pHHInfo);
1200     InitIndex(pHHInfo);
1201
1202     return TRUE;
1203 }
1204
1205 void ReleaseHelpViewer(HHInfo *info)
1206 {
1207     TRACE("(%p)\n", info);
1208
1209     if (!info)
1210         return;
1211
1212     /* Free allocated strings */
1213     heap_free(info->pszType);
1214     heap_free(info->pszCaption);
1215     heap_free(info->pszToc);
1216     heap_free(info->pszIndex);
1217     heap_free(info->pszFile);
1218     heap_free(info->pszHome);
1219     heap_free(info->pszJump1);
1220     heap_free(info->pszJump2);
1221     heap_free(info->pszUrlJump1);
1222     heap_free(info->pszUrlJump2);
1223
1224     if (info->pCHMInfo)
1225         CloseCHM(info->pCHMInfo);
1226
1227     ReleaseWebBrowser(info);
1228     ReleaseContent(info);
1229     ReleaseIndex(info);
1230
1231     if(info->WinType.hwndHelp)
1232         DestroyWindow(info->WinType.hwndHelp);
1233
1234     heap_free(info);
1235     OleUninitialize();
1236 }
1237
1238 HHInfo *CreateHelpViewer(LPCWSTR filename)
1239 {
1240     HHInfo *info = heap_alloc_zero(sizeof(HHInfo));
1241     int i;
1242
1243     /* Set the invalid tab ID (-1) as the default value for all
1244      * of the tabs, this matches a failed TCM_INSERTITEM call.
1245      */
1246     for(i=0;i<sizeof(info->tabs)/sizeof(HHTab);i++)
1247         info->tabs[i].id = -1;
1248
1249     OleInitialize(NULL);
1250
1251     info->pCHMInfo = OpenCHM(filename);
1252     if(!info->pCHMInfo) {
1253         ReleaseHelpViewer(info);
1254         return NULL;
1255     }
1256
1257     if (!LoadWinTypeFromCHM(info)) {
1258         ReleaseHelpViewer(info);
1259         return NULL;
1260     }
1261
1262     if(!CreateViewer(info)) {
1263         ReleaseHelpViewer(info);
1264         return NULL;
1265     }
1266
1267     return info;
1268 }