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  * Copyright 2011 Owen Rudge for CodeWeavers
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include "hhctrl.h"
  24
  25 #include "wingdi.h"
  26 #include "commctrl.h"
  27 #include "wininet.h"
  28
  29 #include "wine/debug.h"
  30
  31 #include "resource.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(htmlhelp);
  34
  35 static LRESULT Help_OnSize(HWND hWnd);
  36 static void ExpandContract(HHInfo *pHHInfo);
  37
  38 /* Window type defaults */
  39
  40 #define WINTYPE_DEFAULT_X           280
  41 #define WINTYPE_DEFAULT_Y           100
  42 #define WINTYPE_DEFAULT_WIDTH       740
  43 #define WINTYPE_DEFAULT_HEIGHT      640
  44 #define WINTYPE_DEFAULT_NAVWIDTH    250
  45
  46 #define TAB_TOP_PADDING     8
  47 #define TAB_RIGHT_PADDING   4
  48 #define TAB_MARGIN  8
  49 #define EDIT_HEIGHT         20
  50
  51 struct list window_list = LIST_INIT(window_list);
  52
  53 static const WCHAR szEmpty[] = {0};
  54
  55 struct html_encoded_symbol {
  56     const char *html_code;
  57     char        ansi_symbol;
  58 };
  59
  60 /*
  61  * Table mapping the conversion between HTML encoded symbols and their ANSI code page equivalent.
  62  * Note: Add additional entries in proper alphabetical order (a binary search is used on this table).
  63  */
  64 struct html_encoded_symbol html_encoded_symbols[] =
  65 {
  66     {"AElig",  0xC6},
  67     {"Aacute", 0xC1},
  68     {"Acirc",  0xC2},
  69     {"Agrave", 0xC0},
  70     {"Aring",  0xC5},
  71     {"Atilde", 0xC3},
  72     {"Auml",   0xC4},
  73     {"Ccedil", 0xC7},
  74     {"ETH",    0xD0},
  75     {"Eacute", 0xC9},
  76     {"Ecirc",  0xCA},
  77     {"Egrave", 0xC8},
  78     {"Euml",   0xCB},
  79     {"Iacute", 0xCD},
  80     {"Icirc",  0xCE},
  81     {"Igrave", 0xCC},
  82     {"Iuml",   0xCF},
  83     {"Ntilde", 0xD1},
  84     {"Oacute", 0xD3},
  85     {"Ocirc",  0xD4},
  86     {"Ograve", 0xD2},
  87     {"Oslash", 0xD8},
  88     {"Otilde", 0xD5},
  89     {"Ouml",   0xD6},
  90     {"THORN",  0xDE},
  91     {"Uacute", 0xDA},
  92     {"Ucirc",  0xDB},
  93     {"Ugrave", 0xD9},
  94     {"Uuml",   0xDC},
  95     {"Yacute", 0xDD},
  96     {"aacute", 0xE1},
  97     {"acirc",  0xE2},
  98     {"acute",  0xB4},
  99     {"aelig",  0xE6},
 100     {"agrave", 0xE0},
 101     {"amp",    '&'},
 102     {"aring",  0xE5},
 103     {"atilde", 0xE3},
 104     {"auml",   0xE4},
 105     {"brvbar", 0xA6},
 106     {"ccedil", 0xE7},
 107     {"cedil",  0xB8},
 108     {"cent",   0xA2},
 109     {"copy",   0xA9},
 110     {"curren", 0xA4},
 111     {"deg",    0xB0},
 112     {"divide", 0xF7},
 113     {"eacute", 0xE9},
 114     {"ecirc",  0xEA},
 115     {"egrave", 0xE8},
 116     {"eth",    0xF0},
 117     {"euml",   0xEB},
 118     {"frac12", 0xBD},
 119     {"frac14", 0xBC},
 120     {"frac34", 0xBE},
 121     {"gt",     '>'},
 122     {"iacute", 0xED},
 123     {"icirc",  0xEE},
 124     {"iexcl",  0xA1},
 125     {"igrave", 0xEC},
 126     {"iquest", 0xBF},
 127     {"iuml",   0xEF},
 128     {"laquo",  0xAB},
 129     {"lt",     '<'},
 130     {"macr",   0xAF},
 131     {"micro",  0xB5},
 132     {"middot", 0xB7},
 133     {"nbsp",   ' '},
 134     {"not",    0xAC},
 135     {"ntilde", 0xF1},
 136     {"oacute", 0xF3},
 137     {"ocirc",  0xF4},
 138     {"ograve", 0xF2},
 139     {"ordf",   0xAA},
 140     {"ordm",   0xBA},
 141     {"oslash", 0xF8},
 142     {"otilde", 0xF5},
 143     {"ouml",   0xF6},
 144     {"para",   0xB6},
 145     {"plusmn", 0xB1},
 146     {"pound",  0xA3},
 147     {"quot",   '"'},
 148     {"raquo",  0xBB},
 149     {"reg",    0xAE},
 150     {"sect",   0xA7},
 151     {"shy",    0xAD},
 152     {"sup1",   0xB9},
 153     {"sup2",   0xB2},
 154     {"sup3",   0xB3},
 155     {"szlig",  0xDF},
 156     {"thorn",  0xFE},
 157     {"times",  0xD7},
 158     {"uacute", 0xFA},
 159     {"ucirc",  0xFB},
 160     {"ugrave", 0xF9},
 161     {"uml",    0xA8},
 162     {"uuml",   0xFC},
 163     {"yacute", 0xFD},
 164     {"yen",    0xA5},
 165     {"yuml",   0xFF}
 166 };
 167
 168 static inline BOOL navigation_visible(HHInfo *info)
 169 {
 170     return ((info->WinType.fsWinProperties & HHWIN_PROP_TRI_PANE) && !info->WinType.fNotExpanded);
 171 }
 172
 173 /* Loads a string from the resource file */
 174 static LPWSTR HH_LoadString(DWORD dwID)
 175 {
 176     LPWSTR string = NULL;
 177     LPCWSTR stringresource;
 178     int iSize;
 179
 180     iSize = LoadStringW(hhctrl_hinstance, dwID, (LPWSTR)&stringresource, 0);
 181
 182     string = heap_alloc((iSize + 2) * sizeof(WCHAR)); /* some strings (tab text) needs double-null termination */
 183     memcpy(string, stringresource, iSize*sizeof(WCHAR));
 184     string[iSize] = 0;
 185
 186     return string;
 187 }
 188
 189 static HRESULT navigate_url(HHInfo *info, LPCWSTR surl)
 190 {
 191     VARIANT url;
 192     HRESULT hres;
 193
 194     TRACE("%s\n", debugstr_w(surl));
 195
 196     V_VT(&url) = VT_BSTR;
 197     V_BSTR(&url) = SysAllocString(surl);
 198
 199     hres = IWebBrowser2_Navigate2(info->web_browser, &url, 0, 0, 0, 0);
 200
 201     VariantClear(&url);
 202
 203     if(FAILED(hres))
 204         TRACE("Navigation failed: %08x\n", hres);
 205
 206     return hres;
 207 }
 208
 209 BOOL NavigateToUrl(HHInfo *info, LPCWSTR surl)
 210 {
 211     ChmPath chm_path;
 212     BOOL ret;
 213     HRESULT hres;
 214
 215     static const WCHAR url_indicator[] = {':', '/', '/', 0};
 216
 217     TRACE("%s\n", debugstr_w(surl));
 218
 219     if (strstrW(surl, url_indicator)) {
 220         hres = navigate_url(info, surl);
 221         if(SUCCEEDED(hres))
 222             return TRUE;
 223     } /* look up in chm if it doesn't look like a full url */
 224
 225     SetChmPath(&chm_path, info->pCHMInfo->szFile, surl);
 226     ret = NavigateToChm(info, chm_path.chm_file, chm_path.chm_index);
 227
 228     heap_free(chm_path.chm_file);
 229     heap_free(chm_path.chm_index);
 230
 231     return ret;
 232 }
 233
 234 static BOOL AppendFullPathURL(LPCWSTR file, LPWSTR buf, LPCWSTR index)
 235 {
 236     static const WCHAR url_format[] =
 237         {'m','k',':','@','M','S','I','T','S','t','o','r','e',':','%','s',':',':','%','s','%','s',0};
 238     static const WCHAR slash[] = {'/',0};
 239     static const WCHAR empty[] = {0};
 240     WCHAR full_path[MAX_PATH];
 241
 242     TRACE("%s %p %s\n", debugstr_w(file), buf, debugstr_w(index));
 243
 244     if(!GetFullPathNameW(file, sizeof(full_path)/sizeof(full_path[0]), full_path, NULL)) {
 245         WARN("GetFullPathName failed: %u\n", GetLastError());
 246         return FALSE;
 247     }
 248
 249     wsprintfW(buf, url_format, full_path, (!index || index[0] == '/') ? empty : slash, index);
 250     return TRUE;
 251 }
 252
 253 BOOL NavigateToChm(HHInfo *info, LPCWSTR file, LPCWSTR index)
 254 {
 255     WCHAR buf[INTERNET_MAX_URL_LENGTH];
 256
 257     TRACE("%p %s %s\n", info, debugstr_w(file), debugstr_w(index));
 258
 259     if ((!info->web_browser) || !AppendFullPathURL(file, buf, index))
 260         return FALSE;
 261
 262     return SUCCEEDED(navigate_url(info, buf));
 263 }
 264
 265 static void DoSync(HHInfo *info)
 266 {
 267     WCHAR buf[INTERNET_MAX_URL_LENGTH];
 268     HRESULT hres;
 269     DWORD len;
 270     BSTR url;
 271
 272     hres = IWebBrowser2_get_LocationURL(info->web_browser, &url);
 273
 274     if (FAILED(hres))
 275     {
 276         WARN("get_LocationURL failed: %08x\n", hres);
 277         return;
 278     }
 279
 280     /* If we're not currently viewing a page in the active .chm file, abort */
 281     if ((!AppendFullPathURL(info->WinType.pszFile, buf, NULL)) || (len = lstrlenW(buf) > lstrlenW(url)))
 282     {
 283         SysFreeString(url);
 284         return;
 285     }
 286
 287     if (lstrcmpiW(buf, url) > 0)
 288     {
 289         static const WCHAR delimW[] = {':',':','/',0};
 290         const WCHAR *index;
 291
 292         index = strstrW(url, delimW);
 293
 294         if (index)
 295             ActivateContentTopic(info->tabs[TAB_CONTENTS].hwnd, index + 3, info->content); /* skip over ::/ */
 296     }
 297
 298     SysFreeString(url);
 299 }
 300
 301 /* Size Bar */
 302
 303 #define SIZEBAR_WIDTH   4
 304
 305 static const WCHAR szSizeBarClass[] = {
 306     'H','H',' ','S','i','z','e','B','a','r',0
 307 };
 308
 309 /* Draw the SizeBar */
 310 static void SB_OnPaint(HWND hWnd)
 311 {
 312     PAINTSTRUCT ps;
 313     HDC hdc;
 314     RECT rc;
 315
 316     hdc = BeginPaint(hWnd, &ps);
 317
 318     GetClientRect(hWnd, &rc);
 319
 320     /* dark frame */
 321     rc.right += 1;
 322     rc.bottom -= 1;
 323     FrameRect(hdc, &rc, GetStockObject(GRAY_BRUSH));
 324
 325     /* white highlight */
 326     SelectObject(hdc, GetStockObject(WHITE_PEN));
 327     MoveToEx(hdc, rc.right, 1, NULL);
 328     LineTo(hdc, 1, 1);
 329     LineTo(hdc, 1, rc.bottom - 1);
 330
 331
 332     MoveToEx(hdc, 0, rc.bottom, NULL);
 333     LineTo(hdc, rc.right, rc.bottom);
 334
 335     EndPaint(hWnd, &ps);
 336 }
 337
 338 static void SB_OnLButtonDown(HWND hWnd, WPARAM wParam, LPARAM lParam)
 339 {
 340     SetCapture(hWnd);
 341 }
 342
 343 static void SB_OnLButtonUp(HWND hWnd, WPARAM wParam, LPARAM lParam)
 344 {
 345     HHInfo *pHHInfo = (HHInfo *)GetWindowLongPtrW(hWnd, 0);
 346     POINT pt;
 347
 348     pt.x = (short)LOWORD(lParam);
 349     pt.y = (short)HIWORD(lParam);
 350
 351     /* update the window sizes */
 352     pHHInfo->WinType.iNavWidth += pt.x;
 353     Help_OnSize(hWnd);
 354
 355     ReleaseCapture();
 356 }
 357
 358 static void SB_OnMouseMove(HWND hWnd, WPARAM wParam, LPARAM lParam)
 359 {
 360     /* ignore WM_MOUSEMOVE if not dragging the SizeBar */
 361     if (!(wParam & MK_LBUTTON))
 362         return;
 363 }
 364
 365 static LRESULT CALLBACK SizeBar_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 366 {
 367     switch (message)
 368     {
 369         case WM_LBUTTONDOWN:
 370             SB_OnLButtonDown(hWnd, wParam, lParam);
 371             break;
 372         case WM_LBUTTONUP:
 373             SB_OnLButtonUp(hWnd, wParam, lParam);
 374             break;
 375         case WM_MOUSEMOVE:
 376             SB_OnMouseMove(hWnd, wParam, lParam);
 377             break;
 378         case WM_PAINT:
 379             SB_OnPaint(hWnd);
 380             break;
 381         default:
 382             return DefWindowProcW(hWnd, message, wParam, lParam);
 383     }
 384
 385     return 0;
 386 }
 387
 388 static void HH_RegisterSizeBarClass(HHInfo *pHHInfo)
 389 {
 390     WNDCLASSEXW wcex;
 391
 392     wcex.cbSize         = sizeof(WNDCLASSEXW);
 393     wcex.style          = 0;
 394     wcex.lpfnWndProc    = SizeBar_WndProc;
 395     wcex.cbClsExtra     = 0;
 396     wcex.cbWndExtra     = sizeof(LONG_PTR);
 397     wcex.hInstance      = hhctrl_hinstance;
 398     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 399     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_SIZEWE);
 400     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
 401     wcex.lpszMenuName   = NULL;
 402     wcex.lpszClassName  = szSizeBarClass;
 403     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 404
 405     RegisterClassExW(&wcex);
 406 }
 407
 408 static void SB_GetSizeBarRect(HHInfo *info, RECT *rc)
 409 {
 410     RECT rectWND, rectTB, rectNP;
 411
 412     GetClientRect(info->WinType.hwndHelp, &rectWND);
 413     GetClientRect(info->WinType.hwndToolBar, &rectTB);
 414     GetClientRect(info->WinType.hwndNavigation, &rectNP);
 415
 416     rc->left = rectNP.right;
 417     rc->top = rectTB.bottom;
 418     rc->bottom = rectWND.bottom - rectTB.bottom;
 419     rc->right = SIZEBAR_WIDTH;
 420 }
 421
 422 static BOOL HH_AddSizeBar(HHInfo *pHHInfo)
 423 {
 424     HWND hWnd;
 425     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 426     DWORD dwStyles = WS_CHILDWINDOW | WS_OVERLAPPED;
 427     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 428     RECT rc;
 429
 430     if (navigation_visible(pHHInfo))
 431         dwStyles |= WS_VISIBLE;
 432
 433     SB_GetSizeBarRect(pHHInfo, &rc);
 434
 435     hWnd = CreateWindowExW(dwExStyles, szSizeBarClass, szEmpty, dwStyles,
 436                            rc.left, rc.top, rc.right, rc.bottom,
 437                            hwndParent, NULL, hhctrl_hinstance, NULL);
 438     if (!hWnd)
 439         return FALSE;
 440
 441     /* store the pointer to the HH info struct */
 442     SetWindowLongPtrW(hWnd, 0, (LONG_PTR)pHHInfo);
 443
 444     pHHInfo->hwndSizeBar = hWnd;
 445     return TRUE;
 446 }
 447
 448 /* Child Window */
 449
 450 static const WCHAR szChildClass[] = {
 451     'H','H',' ','C','h','i','l','d',0
 452 };
 453
 454 static LRESULT Child_OnPaint(HWND hWnd)
 455 {
 456     PAINTSTRUCT ps;
 457     HDC hdc;
 458     RECT rc;
 459
 460     hdc = BeginPaint(hWnd, &ps);
 461
 462     /* Only paint the Navigation pane, identified by the fact
 463      * that it has a child window
 464      */
 465     if (GetWindow(hWnd, GW_CHILD))
 466     {
 467         GetClientRect(hWnd, &rc);
 468
 469         /* set the border color */
 470         SelectObject(hdc, GetStockObject(DC_PEN));
 471         SetDCPenColor(hdc, GetSysColor(COLOR_BTNSHADOW));
 472
 473         /* Draw the top border */
 474         LineTo(hdc, rc.right, 0);
 475
 476         SelectObject(hdc, GetStockObject(WHITE_PEN));
 477         MoveToEx(hdc, 0, 1, NULL);
 478         LineTo(hdc, rc.right, 1);
 479     }
 480
 481     EndPaint(hWnd, &ps);
 482
 483     return 0;
 484 }
 485
 486 static void ResizeTabChild(HHInfo *info, int tab)
 487 {
 488     HWND hwnd = info->tabs[tab].hwnd;
 489     INT width, height;
 490     RECT rect, tabrc;
 491     DWORD cnt;
 492
 493     GetClientRect(info->WinType.hwndNavigation, &rect);
 494     SendMessageW(info->hwndTabCtrl, TCM_GETITEMRECT, 0, (LPARAM)&tabrc);
 495     cnt = SendMessageW(info->hwndTabCtrl, TCM_GETROWCOUNT, 0, 0);
 496
 497     rect.left = TAB_MARGIN;
 498     rect.top = TAB_TOP_PADDING + cnt*(tabrc.bottom-tabrc.top) + TAB_MARGIN;
 499     rect.right -= TAB_RIGHT_PADDING + TAB_MARGIN;
 500     rect.bottom -= TAB_MARGIN;
 501     width = rect.right-rect.left;
 502     height = rect.bottom-rect.top;
 503
 504     SetWindowPos(hwnd, NULL, rect.left, rect.top, width, height,
 505                  SWP_NOZORDER | SWP_NOACTIVATE);
 506
 507     switch (tab)
 508     {
 509     case TAB_INDEX: {
 510         int scroll_width = GetSystemMetrics(SM_CXVSCROLL);
 511         int border_width = GetSystemMetrics(SM_CXBORDER);
 512         int edge_width = GetSystemMetrics(SM_CXEDGE);
 513
 514         /* Resize the tab widget column to perfectly fit the tab window and
 515          * leave sufficient space for the scroll widget.
 516          */
 517         SendMessageW(info->tabs[TAB_INDEX].hwnd, LVM_SETCOLUMNWIDTH, 0,
 518                      width-scroll_width-2*border_width-2*edge_width);
 519
 520         break;
 521     }
 522     case TAB_SEARCH: {
 523         int scroll_width = GetSystemMetrics(SM_CXVSCROLL);
 524         int border_width = GetSystemMetrics(SM_CXBORDER);
 525         int edge_width = GetSystemMetrics(SM_CXEDGE);
 526         int top_pos = 0;
 527
 528         SetWindowPos(info->search.hwndEdit, NULL, 0, top_pos, width,
 529                       EDIT_HEIGHT, SWP_NOZORDER | SWP_NOACTIVATE);
 530         top_pos += EDIT_HEIGHT + TAB_MARGIN;
 531         SetWindowPos(info->search.hwndList, NULL, 0, top_pos, width,
 532                       height-top_pos, SWP_NOZORDER | SWP_NOACTIVATE);
 533         /* Resize the tab widget column to perfectly fit the tab window and
 534          * leave sufficient space for the scroll widget.
 535          */
 536         SendMessageW(info->search.hwndList, LVM_SETCOLUMNWIDTH, 0,
 537                      width-scroll_width-2*border_width-2*edge_width);
 538
 539         break;
 540     }
 541     }
 542 }
 543
 544 static LRESULT Child_OnSize(HWND hwnd)
 545 {
 546     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, 0);
 547     RECT rect;
 548
 549     if(!info || hwnd != info->WinType.hwndNavigation)
 550         return 0;
 551
 552     GetClientRect(hwnd, &rect);
 553     SetWindowPos(info->hwndTabCtrl, HWND_TOP, 0, 0,
 554                  rect.right - TAB_RIGHT_PADDING,
 555                  rect.bottom - TAB_TOP_PADDING, SWP_NOMOVE);
 556
 557     ResizeTabChild(info, TAB_CONTENTS);
 558     ResizeTabChild(info, TAB_INDEX);
 559     ResizeTabChild(info, TAB_SEARCH);
 560     return 0;
 561 }
 562
 563 static LRESULT OnTabChange(HWND hwnd)
 564 {
 565     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, 0);
 566     int tab_id, tab_index, i;
 567
 568     TRACE("%p\n", hwnd);
 569
 570     if (!info)
 571         return 0;
 572
 573     if(info->tabs[info->current_tab].hwnd)
 574         ShowWindow(info->tabs[info->current_tab].hwnd, SW_HIDE);
 575
 576     tab_id = (int) SendMessageW(info->hwndTabCtrl, TCM_GETCURSEL, 0, 0);
 577     /* convert the ID of the tab to an index in our tab list */
 578     tab_index = -1;
 579     for (i=0; i<TAB_NUMTABS; i++)
 580     {
 581         if (info->tabs[i].id == tab_id)
 582         {
 583             tab_index = i;
 584             break;
 585         }
 586     }
 587     if (tab_index == -1)
 588     {
 589         FIXME("Tab ID %d does not correspond to a valid index in the tab list.\n", tab_id);
 590         return 0;
 591     }
 592     info->current_tab = tab_index;
 593
 594     if(info->tabs[info->current_tab].hwnd)
 595         ShowWindow(info->tabs[info->current_tab].hwnd, SW_SHOW);
 596
 597     return 0;
 598 }
 599
 600 static LRESULT OnTopicChange(HHInfo *info, void *user_data)
 601 {
 602     LPCWSTR chmfile = NULL, name = NULL, local = NULL;
 603     ContentItem *citer;
 604     SearchItem *siter;
 605     IndexItem *iiter;
 606
 607     if(!user_data || !info)
 608         return 0;
 609
 610     switch (info->current_tab)
 611     {
 612     case TAB_CONTENTS:
 613         citer = (ContentItem *) user_data;
 614         name = citer->name;
 615         local = citer->local;
 616         while(citer) {
 617             if(citer->merge.chm_file) {
 618                 chmfile = citer->merge.chm_file;
 619                 break;
 620             }
 621             citer = citer->parent;
 622         }
 623         break;
 624     case TAB_INDEX:
 625         iiter = (IndexItem *) user_data;
 626         if(iiter->nItems == 0) {
 627             FIXME("No entries for this item!\n");
 628             return 0;
 629         }
 630         if(iiter->nItems > 1) {
 631             int i = 0;
 632             LVITEMW lvi;
 633
 634             SendMessageW(info->popup.hwndList, LVM_DELETEALLITEMS, 0, 0);
 635             for(i=0;i<iiter->nItems;i++) {
 636                 IndexSubItem *item = &iiter->items[i];
 637                 WCHAR *name = iiter->keyword;
 638
 639                 if(!item->name)
 640                     item->name = GetDocumentTitle(info->pCHMInfo, item->local);
 641                 if(item->name)
 642                     name = item->name;
 643                 memset(&lvi, 0, sizeof(lvi));
 644                 lvi.iItem = i;
 645                 lvi.mask = LVIF_TEXT|LVIF_PARAM;
 646                 lvi.cchTextMax = strlenW(name)+1;
 647                 lvi.pszText = name;
 648                 lvi.lParam = (LPARAM) item;
 649                 SendMessageW(info->popup.hwndList, LVM_INSERTITEMW, 0, (LPARAM)&lvi);
 650             }
 651             ShowWindow(info->popup.hwndPopup, SW_SHOW);
 652             return 0;
 653         }
 654         name = iiter->items[0].name;
 655         local = iiter->items[0].local;
 656         chmfile = iiter->merge.chm_file;
 657         break;
 658     case TAB_SEARCH:
 659         siter = (SearchItem *) user_data;
 660         name = siter->filename;
 661         local = siter->filename;
 662         chmfile = info->pCHMInfo->szFile;
 663         break;
 664     default:
 665         FIXME("Unhandled operation for this tab!\n");
 666         return 0;
 667     }
 668
 669     if(!chmfile)
 670     {
 671         FIXME("No help file found for this item!\n");
 672         return 0;
 673     }
 674
 675     TRACE("name %s loal %s\n", debugstr_w(name), debugstr_w(local));
 676
 677     NavigateToChm(info, chmfile, local);
 678     return 0;
 679 }
 680
 681 /* Capture the Enter/Return key and send it up to Child_WndProc as an NM_RETURN message */
 682 static LRESULT CALLBACK EditChild_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 683 {
 684     WNDPROC editWndProc = (WNDPROC)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 685
 686     if(message == WM_KEYUP && wParam == VK_RETURN)
 687     {
 688         NMHDR nmhdr;
 689
 690         nmhdr.hwndFrom = hWnd;
 691         nmhdr.code = NM_RETURN;
 692         SendMessageW(GetParent(GetParent(hWnd)), WM_NOTIFY, wParam, (LPARAM)&nmhdr);
 693     }
 694     return editWndProc(hWnd, message, wParam, lParam);
 695 }
 696
 697 static LRESULT CALLBACK Child_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 698 {
 699     switch (message)
 700     {
 701     case WM_PAINT:
 702         return Child_OnPaint(hWnd);
 703     case WM_SIZE:
 704         return Child_OnSize(hWnd);
 705     case WM_NOTIFY: {
 706         HHInfo *info = (HHInfo*)GetWindowLongPtrW(hWnd, 0);
 707         NMHDR *nmhdr = (NMHDR*)lParam;
 708
 709         switch(nmhdr->code) {
 710         case TCN_SELCHANGE:
 711             return OnTabChange(hWnd);
 712         case TVN_SELCHANGEDW:
 713             return OnTopicChange(info, (void*)((NMTREEVIEWW *)lParam)->itemNew.lParam);
 714         case TVN_ITEMEXPANDINGW: {
 715             TVITEMW *item = &((NMTREEVIEWW *)lParam)->itemNew;
 716             HWND hwndTreeView = info->tabs[TAB_CONTENTS].hwnd;
 717
 718             item->mask = TVIF_IMAGE|TVIF_SELECTEDIMAGE;
 719             if (item->state & TVIS_EXPANDED)
 720             {
 721                 item->iImage = HHTV_FOLDER;
 722                 item->iSelectedImage = HHTV_FOLDER;
 723             }
 724             else
 725             {
 726                 item->iImage = HHTV_OPENFOLDER;
 727                 item->iSelectedImage = HHTV_OPENFOLDER;
 728             }
 729             SendMessageW(hwndTreeView, TVM_SETITEMW, 0, (LPARAM)item);
 730             return 0;
 731         }
 732         case NM_DBLCLK:
 733             if(!info)
 734                 return 0;
 735             switch(info->current_tab)
 736             {
 737             case TAB_INDEX:
 738                 return OnTopicChange(info, (void*)((NMITEMACTIVATE *)lParam)->lParam);
 739             case TAB_SEARCH:
 740                 return OnTopicChange(info, (void*)((NMITEMACTIVATE *)lParam)->lParam);
 741             }
 742             break;
 743         case NM_RETURN:
 744             if(!info)
 745                 return 0;
 746             switch(info->current_tab) {
 747             case TAB_INDEX: {
 748                 HWND hwndList = info->tabs[TAB_INDEX].hwnd;
 749                 LVITEMW lvItem;
 750
 751                 lvItem.iItem = (int) SendMessageW(hwndList, LVM_GETSELECTIONMARK, 0, 0);
 752                 lvItem.mask = TVIF_PARAM;
 753                 SendMessageW(hwndList, LVM_GETITEMW, 0, (LPARAM)&lvItem);
 754                 OnTopicChange(info, (void*) lvItem.lParam);
 755                 return 0;
 756             }
 757             case TAB_SEARCH: {
 758                 if(nmhdr->hwndFrom == info->search.hwndEdit) {
 759                     char needle[100];
 760                     DWORD i, len;
 761
 762                     len = GetWindowTextA(info->search.hwndEdit, needle, sizeof(needle));
 763                     if(!len)
 764                     {
 765                         FIXME("Unable to get search text.\n");
 766                         return 0;
 767                     }
 768                     /* Convert the requested text for comparison later against the
 769                      * lower case version of HTML file contents.
 770                      */
 771                     for(i=0;i<len;i++)
 772                         needle[i] = tolower(needle[i]);
 773                     InitSearch(info, needle);
 774                     return 0;
 775                 }else if(nmhdr->hwndFrom == info->search.hwndList) {
 776                     HWND hwndList = info->search.hwndList;
 777                     LVITEMW lvItem;
 778
 779                     lvItem.iItem = (int) SendMessageW(hwndList, LVM_GETSELECTIONMARK, 0, 0);
 780                     lvItem.mask = TVIF_PARAM;
 781                     SendMessageW(hwndList, LVM_GETITEMW, 0, (LPARAM)&lvItem);
 782                     OnTopicChange(info, (void*) lvItem.lParam);
 783                     return 0;
 784                 }
 785                 break;
 786             }
 787             }
 788             break;
 789         }
 790         break;
 791     }
 792     default:
 793         return DefWindowProcW(hWnd, message, wParam, lParam);
 794     }
 795
 796     return 0;
 797 }
 798
 799 static void HH_RegisterChildWndClass(HHInfo *pHHInfo)
 800 {
 801     WNDCLASSEXW wcex;
 802
 803     wcex.cbSize         = sizeof(WNDCLASSEXW);
 804     wcex.style          = 0;
 805     wcex.lpfnWndProc    = Child_WndProc;
 806     wcex.cbClsExtra     = 0;
 807     wcex.cbWndExtra     = sizeof(LONG_PTR);
 808     wcex.hInstance      = hhctrl_hinstance;
 809     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 810     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
 811     wcex.hbrBackground  = (HBRUSH)(COLOR_BTNFACE + 1);
 812     wcex.lpszMenuName   = NULL;
 813     wcex.lpszClassName  = szChildClass;
 814     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 815
 816     RegisterClassExW(&wcex);
 817 }
 818
 819 /* Toolbar */
 820
 821 #define ICON_SIZE   20
 822
 823 static void DisplayPopupMenu(HHInfo *info)
 824 {
 825     HMENU menu, submenu;
 826     TBBUTTONINFOW button;
 827     MENUITEMINFOW item;
 828     POINT coords;
 829     RECT rect;
 830     DWORD index;
 831
 832     menu = LoadMenuW(hhctrl_hinstance, MAKEINTRESOURCEW(MENU_POPUP));
 833
 834     if (!menu)
 835         return;
 836
 837     submenu = GetSubMenu(menu, 0);
 838
 839     /* Update the Show/Hide menu item */
 840     item.cbSize = sizeof(MENUITEMINFOW);
 841     item.fMask = MIIM_FTYPE | MIIM_STATE | MIIM_STRING;
 842     item.fType = MFT_STRING;
 843     item.fState = MF_ENABLED;
 844
 845     if (info->WinType.fNotExpanded)
 846         item.dwTypeData = HH_LoadString(IDS_SHOWTABS);
 847     else
 848         item.dwTypeData = HH_LoadString(IDS_HIDETABS);
 849
 850     SetMenuItemInfoW(submenu, IDTB_EXPAND, FALSE, &item);
 851     heap_free(item.dwTypeData);
 852
 853     /* Find the index toolbar button */
 854     button.cbSize = sizeof(TBBUTTONINFOW);
 855     button.dwMask = TBIF_COMMAND;
 856     index = SendMessageW(info->WinType.hwndToolBar, TB_GETBUTTONINFOW, IDTB_OPTIONS, (LPARAM) &button);
 857
 858     if (index == -1)
 859        return;
 860
 861     /* Get position */
 862     SendMessageW(info->WinType.hwndToolBar, TB_GETITEMRECT, index, (LPARAM) &rect);
 863
 864     coords.x = rect.left;
 865     coords.y = rect.bottom;
 866
 867     ClientToScreen(info->WinType.hwndToolBar, &coords);
 868     TrackPopupMenu(submenu, TPM_LEFTALIGN | TPM_TOPALIGN | TPM_LEFTBUTTON | TPM_NOANIMATION, coords.x, coords.y, 0, info->WinType.hwndHelp, NULL);
 869 }
 870
 871 static void TB_OnClick(HWND hWnd, DWORD dwID)
 872 {
 873     HHInfo *info = (HHInfo *)GetWindowLongPtrW(hWnd, 0);
 874
 875     switch (dwID)
 876     {
 877         case IDTB_STOP:
 878             DoPageAction(info, WB_STOP);
 879             break;
 880         case IDTB_REFRESH:
 881             DoPageAction(info, WB_REFRESH);
 882             break;
 883         case IDTB_BACK:
 884             DoPageAction(info, WB_GOBACK);
 885             break;
 886         case IDTB_HOME:
 887             NavigateToChm(info, info->pCHMInfo->szFile, info->WinType.pszHome);
 888             break;
 889         case IDTB_FORWARD:
 890             DoPageAction(info, WB_GOFORWARD);
 891             break;
 892         case IDTB_PRINT:
 893             DoPageAction(info, WB_PRINT);
 894             break;
 895         case IDTB_EXPAND:
 896         case IDTB_CONTRACT:
 897             ExpandContract(info);
 898             break;
 899         case IDTB_SYNC:
 900             DoSync(info);
 901             break;
 902         case IDTB_OPTIONS:
 903             DisplayPopupMenu(info);
 904             break;
 905         case IDTB_NOTES:
 906         case IDTB_CONTENTS:
 907         case IDTB_INDEX:
 908         case IDTB_SEARCH:
 909         case IDTB_HISTORY:
 910         case IDTB_FAVORITES:
 911             /* These are officially unimplemented as of the Windows 7 SDK */
 912             break;
 913         case IDTB_BROWSE_FWD:
 914         case IDTB_BROWSE_BACK:
 915         case IDTB_JUMP1:
 916         case IDTB_JUMP2:
 917         case IDTB_CUSTOMIZE:
 918         case IDTB_ZOOM:
 919         case IDTB_TOC_NEXT:
 920         case IDTB_TOC_PREV:
 921             break;
 922     }
 923 }
 924
 925 static void TB_AddButton(TBBUTTON *pButtons, DWORD dwIndex, DWORD dwID, DWORD dwBitmap)
 926 {
 927     pButtons[dwIndex].iBitmap = dwBitmap;
 928     pButtons[dwIndex].idCommand = dwID;
 929     pButtons[dwIndex].fsState = TBSTATE_ENABLED;
 930     pButtons[dwIndex].fsStyle = BTNS_BUTTON;
 931     pButtons[dwIndex].dwData = 0;
 932     pButtons[dwIndex].iString = 0;
 933 }
 934
 935 static void TB_AddButtonsFromFlags(HHInfo *pHHInfo, TBBUTTON *pButtons, DWORD dwButtonFlags, LPDWORD pdwNumButtons)
 936 {
 937     int nHistBitmaps = 0, nStdBitmaps = 0, nHHBitmaps = 0;
 938     HWND hToolbar = pHHInfo->WinType.hwndToolBar;
 939     TBADDBITMAP tbAB;
 940     DWORD unsupported;
 941
 942     /* Common bitmaps */
 943     tbAB.hInst = HINST_COMMCTRL;
 944     tbAB.nID = IDB_HIST_LARGE_COLOR;
 945     nHistBitmaps = SendMessageW(hToolbar, TB_ADDBITMAP, 0, (LPARAM)&tbAB);
 946     tbAB.nID = IDB_STD_LARGE_COLOR;
 947     nStdBitmaps = SendMessageW(hToolbar, TB_ADDBITMAP, 0, (LPARAM)&tbAB);
 948     /* hhctrl.ocx bitmaps */
 949     tbAB.hInst = hhctrl_hinstance;
 950     tbAB.nID = IDB_HHTOOLBAR;
 951     nHHBitmaps = SendMessageW(hToolbar, TB_ADDBITMAP, HHTB_NUMBITMAPS, (LPARAM)&tbAB);
 952
 953     *pdwNumButtons = 0;
 954
 955     unsupported = dwButtonFlags & (HHWIN_BUTTON_BROWSE_FWD |
 956         HHWIN_BUTTON_BROWSE_BCK | HHWIN_BUTTON_NOTES | HHWIN_BUTTON_CONTENTS |
 957         HHWIN_BUTTON_INDEX | HHWIN_BUTTON_SEARCH | HHWIN_BUTTON_HISTORY |
 958         HHWIN_BUTTON_FAVORITES | HHWIN_BUTTON_JUMP1 | HHWIN_BUTTON_JUMP2 |
 959         HHWIN_BUTTON_ZOOM | HHWIN_BUTTON_TOC_NEXT | HHWIN_BUTTON_TOC_PREV);
 960     if (unsupported)
 961         FIXME("got asked for unsupported buttons: %06x\n", unsupported);
 962
 963     if (dwButtonFlags & HHWIN_BUTTON_EXPAND)
 964     {
 965         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_EXPAND, nHHBitmaps + HHTB_EXPAND);
 966         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_CONTRACT, nHHBitmaps + HHTB_CONTRACT);
 967
 968         if (pHHInfo->WinType.fNotExpanded)
 969             pButtons[1].fsState |= TBSTATE_HIDDEN;
 970         else
 971             pButtons[0].fsState |= TBSTATE_HIDDEN;
 972     }
 973
 974     if (dwButtonFlags & HHWIN_BUTTON_BACK)
 975         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_BACK, nHistBitmaps + HIST_BACK);
 976
 977     if (dwButtonFlags & HHWIN_BUTTON_FORWARD)
 978         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_FORWARD, nHistBitmaps + HIST_FORWARD);
 979
 980     if (dwButtonFlags & HHWIN_BUTTON_STOP)
 981         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_STOP, nHHBitmaps + HHTB_STOP);
 982
 983     if (dwButtonFlags & HHWIN_BUTTON_REFRESH)
 984         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_REFRESH, nHHBitmaps + HHTB_REFRESH);
 985
 986     if (dwButtonFlags & HHWIN_BUTTON_HOME)
 987         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_HOME, nHHBitmaps + HHTB_HOME);
 988
 989     if (dwButtonFlags & HHWIN_BUTTON_SYNC)
 990         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_SYNC, nHHBitmaps + HHTB_SYNC);
 991
 992     if (dwButtonFlags & HHWIN_BUTTON_OPTIONS)
 993         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_OPTIONS, nStdBitmaps + STD_PROPERTIES);
 994
 995     if (dwButtonFlags & HHWIN_BUTTON_PRINT)
 996         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_PRINT, nStdBitmaps + STD_PRINT);
 997 }
 998
 999 static BOOL HH_AddToolbar(HHInfo *pHHInfo)
1000 {
1001     HWND hToolbar;
1002     HWND hwndParent = pHHInfo->WinType.hwndHelp;
1003     DWORD toolbarFlags;
1004     TBBUTTON buttons[IDTB_TOC_PREV - IDTB_EXPAND];
1005     DWORD dwStyles, dwExStyles;
1006     DWORD dwNumButtons, dwIndex;
1007
1008     if (pHHInfo->WinType.fsWinProperties & HHWIN_PARAM_TB_FLAGS)
1009         toolbarFlags = pHHInfo->WinType.fsToolBarFlags;
1010     else
1011         toolbarFlags = HHWIN_DEF_BUTTONS;
1012
1013     dwStyles = WS_CHILDWINDOW | TBSTYLE_FLAT | TBSTYLE_WRAPABLE | TBSTYLE_TOOLTIPS | CCS_NODIVIDER;
1014     dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
1015
1016     hToolbar = CreateWindowExW(dwExStyles, TOOLBARCLASSNAMEW, NULL, dwStyles,
1017                                0, 0, 0, 0, hwndParent, NULL,
1018                                hhctrl_hinstance, NULL);
1019     if (!hToolbar)
1020         return FALSE;
1021     pHHInfo->WinType.hwndToolBar = hToolbar;
1022
1023     SendMessageW(hToolbar, TB_SETBITMAPSIZE, 0, MAKELONG(ICON_SIZE, ICON_SIZE));
1024     SendMessageW(hToolbar, TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);
1025     SendMessageW(hToolbar, WM_SETFONT, (WPARAM)pHHInfo->hFont, TRUE);
1026
1027     TB_AddButtonsFromFlags(pHHInfo, buttons, toolbarFlags, &dwNumButtons);
1028
1029     for (dwIndex = 0; dwIndex < dwNumButtons; dwIndex++)
1030     {
1031         LPWSTR szBuf = HH_LoadString(buttons[dwIndex].idCommand);
1032         DWORD dwLen = strlenW(szBuf);
1033         szBuf[dwLen + 1] = 0; /* Double-null terminate */
1034
1035         buttons[dwIndex].iString = (DWORD)SendMessageW(hToolbar, TB_ADDSTRINGW, 0, (LPARAM)szBuf);
1036         heap_free(szBuf);
1037     }
1038
1039     SendMessageW(hToolbar, TB_ADDBUTTONSW, dwNumButtons, (LPARAM)buttons);
1040     SendMessageW(hToolbar, TB_AUTOSIZE, 0, 0);
1041     if (pHHInfo->WinType.fsWinProperties & HHWIN_PROP_TRI_PANE)
1042         ShowWindow(hToolbar, SW_SHOW);
1043
1044     return TRUE;
1045 }
1046
1047 /* Navigation Pane */
1048
1049 static void NP_GetNavigationRect(HHInfo *pHHInfo, RECT *rc)
1050 {
1051     HWND hwndParent = pHHInfo->WinType.hwndHelp;
1052     HWND hwndToolbar = pHHInfo->WinType.hwndToolBar;
1053     RECT rectWND, rectTB;
1054
1055     GetClientRect(hwndParent, &rectWND);
1056     GetClientRect(hwndToolbar, &rectTB);
1057
1058     rc->left = 0;
1059     rc->top = rectTB.bottom;
1060     rc->bottom = rectWND.bottom - rectTB.bottom;
1061
1062     if (!(pHHInfo->WinType.fsValidMembers & HHWIN_PARAM_NAV_WIDTH) &&
1063           pHHInfo->WinType.iNavWidth == 0)
1064     {
1065         pHHInfo->WinType.iNavWidth = WINTYPE_DEFAULT_NAVWIDTH;
1066     }
1067
1068     rc->right = pHHInfo->WinType.iNavWidth;
1069 }
1070
1071 static DWORD NP_CreateTab(HINSTANCE hInstance, HWND hwndTabCtrl, DWORD index)
1072 {
1073     TCITEMW tie;
1074     LPWSTR tabText = HH_LoadString(index);
1075     DWORD ret;
1076
1077     tie.mask = TCIF_TEXT;
1078     tie.pszText = tabText;
1079
1080     ret = SendMessageW( hwndTabCtrl, TCM_INSERTITEMW, index, (LPARAM)&tie );
1081
1082     heap_free(tabText);
1083     return ret;
1084 }
1085
1086 static BOOL HH_AddNavigationPane(HHInfo *info)
1087 {
1088     HWND hWnd, hwndTabCtrl;
1089     HWND hwndParent = info->WinType.hwndHelp;
1090     DWORD dwStyles = WS_CHILDWINDOW;
1091     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
1092     RECT rc;
1093
1094     if (navigation_visible(info))
1095         dwStyles |= WS_VISIBLE;
1096
1097     NP_GetNavigationRect(info, &rc);
1098
1099     hWnd = CreateWindowExW(dwExStyles, szChildClass, szEmpty, dwStyles,
1100                            rc.left, rc.top, rc.right, rc.bottom,
1101                            hwndParent, NULL, hhctrl_hinstance, NULL);
1102     if (!hWnd)
1103         return FALSE;
1104
1105     SetWindowLongPtrW(hWnd, 0, (LONG_PTR)info);
1106
1107     hwndTabCtrl = CreateWindowExW(dwExStyles, WC_TABCONTROLW, szEmpty, dwStyles | WS_VISIBLE,
1108                                   0, TAB_TOP_PADDING,
1109                                   rc.right - TAB_RIGHT_PADDING,
1110                                   rc.bottom - TAB_TOP_PADDING,
1111                                   hWnd, NULL, hhctrl_hinstance, NULL);
1112     if (!hwndTabCtrl)
1113         return FALSE;
1114
1115     if (*info->WinType.pszToc)
1116         info->tabs[TAB_CONTENTS].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_CONTENTS);
1117
1118     if (*info->WinType.pszIndex)
1119         info->tabs[TAB_INDEX].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_INDEX);
1120
1121     if (info->WinType.fsWinProperties & HHWIN_PROP_TAB_SEARCH)
1122         info->tabs[TAB_SEARCH].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_SEARCH);
1123
1124     if (info->WinType.fsWinProperties & HHWIN_PROP_TAB_FAVORITES)
1125         info->tabs[TAB_FAVORITES].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_FAVORITES);
1126
1127     SendMessageW(hwndTabCtrl, WM_SETFONT, (WPARAM)info->hFont, TRUE);
1128
1129     info->hwndTabCtrl = hwndTabCtrl;
1130     info->WinType.hwndNavigation = hWnd;
1131     return TRUE;
1132 }
1133
1134 /* HTML Pane */
1135
1136 static void HP_GetHTMLRect(HHInfo *info, RECT *rc)
1137 {
1138     RECT rectTB, rectWND, rectNP, rectSB;
1139
1140     GetClientRect(info->WinType.hwndHelp, &rectWND);
1141     GetClientRect(info->hwndSizeBar, &rectSB);
1142
1143     rc->left = 0;
1144     rc->top = 0;
1145     if (navigation_visible(info))
1146     {
1147         GetClientRect(info->WinType.hwndNavigation, &rectNP);
1148         rc->left += rectNP.right + rectSB.right;
1149     }
1150     if (info->WinType.fsWinProperties & HHWIN_PROP_TRI_PANE)
1151     {
1152         GetClientRect(info->WinType.hwndToolBar, &rectTB);
1153         rc->top += rectTB.bottom;
1154     }
1155     rc->right = rectWND.right - rc->left;
1156     rc->bottom = rectWND.bottom - rc->top;
1157 }
1158
1159 static BOOL HH_AddHTMLPane(HHInfo *pHHInfo)
1160 {
1161     HWND hWnd;
1162     HWND hwndParent = pHHInfo->WinType.hwndHelp;
1163     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE | WS_CLIPCHILDREN;
1164     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR | WS_EX_CLIENTEDGE;
1165     RECT rc;
1166
1167     HP_GetHTMLRect(pHHInfo, &rc);
1168
1169     hWnd = CreateWindowExW(dwExStyles, szChildClass, szEmpty, dwStyles,
1170                            rc.left, rc.top, rc.right, rc.bottom,
1171                            hwndParent, NULL, hhctrl_hinstance, NULL);
1172     if (!hWnd)
1173         return FALSE;
1174
1175     if (!InitWebBrowser(pHHInfo, hWnd))
1176         return FALSE;
1177
1178     /* store the pointer to the HH info struct */
1179     SetWindowLongPtrW(hWnd, 0, (LONG_PTR)pHHInfo);
1180
1181     ShowWindow(hWnd, SW_SHOW);
1182     UpdateWindow(hWnd);
1183
1184     pHHInfo->WinType.hwndHTML = hWnd;
1185     return TRUE;
1186 }
1187
1188 static BOOL AddContentTab(HHInfo *info)
1189 {
1190     HIMAGELIST hImageList;
1191     HBITMAP hBitmap;
1192     HWND hWnd;
1193
1194     if(info->tabs[TAB_CONTENTS].id == -1)
1195         return TRUE; /* No "Contents" tab */
1196     hWnd = CreateWindowExW(WS_EX_CLIENTEDGE, WC_TREEVIEWW, szEmpty, WS_CHILD | WS_BORDER | TVS_LINESATROOT
1197                            | TVS_SHOWSELALWAYS | TVS_HASBUTTONS, 50, 50, 100, 100,
1198                            info->WinType.hwndNavigation, NULL, hhctrl_hinstance, NULL);
1199     if(!hWnd) {
1200         ERR("Could not create treeview control\n");
1201         return FALSE;
1202     }
1203
1204     hImageList = ImageList_Create(16, 16, ILC_COLOR32, 0, HHTV_NUMBITMAPS);
1205     hBitmap = LoadBitmapW(hhctrl_hinstance, MAKEINTRESOURCEW(IDB_HHTREEVIEW));
1206     ImageList_Add(hImageList, hBitmap, NULL);
1207     SendMessageW(hWnd, TVM_SETIMAGELIST, TVSIL_NORMAL, (LPARAM)hImageList);
1208
1209     info->contents.hImageList = hImageList;
1210     info->tabs[TAB_CONTENTS].hwnd = hWnd;
1211     ResizeTabChild(info, TAB_CONTENTS);
1212     ShowWindow(hWnd, SW_SHOW);
1213
1214     return TRUE;
1215 }
1216
1217 static BOOL AddIndexTab(HHInfo *info)
1218 {
1219     char hidden_column[] = "Column";
1220     LVCOLUMNA lvc;
1221
1222     if(info->tabs[TAB_INDEX].id == -1)
1223         return TRUE; /* No "Index" tab */
1224     info->tabs[TAB_INDEX].hwnd = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW,
1225            szEmpty, WS_CHILD | WS_BORDER | LVS_SINGLESEL | LVS_REPORT | LVS_NOCOLUMNHEADER, 50, 50, 100, 100,
1226            info->WinType.hwndNavigation, NULL, hhctrl_hinstance, NULL);
1227     if(!info->tabs[TAB_INDEX].hwnd) {
1228         ERR("Could not create ListView control\n");
1229         return FALSE;
1230     }
1231     memset(&lvc, 0, sizeof(lvc));
1232     lvc.mask = LVCF_TEXT;
1233     lvc.pszText = hidden_column;
1234     if(SendMessageW(info->tabs[TAB_INDEX].hwnd, LVM_INSERTCOLUMNA, 0, (LPARAM) &lvc) == -1)
1235     {
1236         ERR("Could not create ListView column\n");
1237         return FALSE;
1238     }
1239
1240     ResizeTabChild(info, TAB_INDEX);
1241     ShowWindow(info->tabs[TAB_INDEX].hwnd, SW_HIDE);
1242
1243     return TRUE;
1244 }
1245
1246 static BOOL AddSearchTab(HHInfo *info)
1247 {
1248     HWND hwndList, hwndEdit, hwndContainer;
1249     char hidden_column[] = "Column";
1250     WNDPROC editWndProc;
1251     LVCOLUMNA lvc;
1252
1253     if(info->tabs[TAB_SEARCH].id == -1)
1254         return TRUE; /* No "Search" tab */
1255     hwndContainer = CreateWindowExW(WS_EX_CONTROLPARENT, szChildClass, szEmpty,
1256                                     WS_CHILD, 0, 0, 0, 0, info->WinType.hwndNavigation,
1257                                     NULL, hhctrl_hinstance, NULL);
1258     if(!hwndContainer) {
1259         ERR("Could not create search window container control.\n");
1260         return FALSE;
1261     }
1262     hwndEdit = CreateWindowExW(WS_EX_CLIENTEDGE, WC_EDITW, szEmpty, WS_CHILD
1263                                 | WS_VISIBLE | ES_LEFT | SS_NOTIFY, 0, 0, 0, 0,
1264                                hwndContainer, NULL, hhctrl_hinstance, NULL);
1265     if(!hwndEdit) {
1266         ERR("Could not create search ListView control.\n");
1267         return FALSE;
1268     }
1269     if(SendMessageW(hwndEdit, WM_SETFONT, (WPARAM) info->hFont, (LPARAM) FALSE) == -1)
1270     {
1271         ERR("Could not set font for edit control.\n");
1272         return FALSE;
1273     }
1274     editWndProc = (WNDPROC) SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC, (LONG_PTR)EditChild_WndProc);
1275     if(!editWndProc) {
1276         ERR("Could not redirect messages for edit control.\n");
1277         return FALSE;
1278     }
1279     SetWindowLongPtrW(hwndEdit, GWLP_USERDATA, (LONG_PTR)editWndProc);
1280     hwndList = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW, szEmpty,
1281                                WS_CHILD | WS_VISIBLE | WS_BORDER | LVS_SINGLESEL
1282                                 | LVS_REPORT | LVS_NOCOLUMNHEADER, 0, 0, 0, 0,
1283                                hwndContainer, NULL, hhctrl_hinstance, NULL);
1284     if(!hwndList) {
1285         ERR("Could not create search ListView control.\n");
1286         return FALSE;
1287     }
1288     memset(&lvc, 0, sizeof(lvc));
1289     lvc.mask = LVCF_TEXT;
1290     lvc.pszText = hidden_column;
1291     if(SendMessageW(hwndList, LVM_INSERTCOLUMNA, 0, (LPARAM) &lvc) == -1)
1292     {
1293         ERR("Could not create ListView column\n");
1294         return FALSE;
1295     }
1296
1297     info->search.hwndEdit = hwndEdit;
1298     info->search.hwndList = hwndList;
1299     info->search.hwndContainer = hwndContainer;
1300     info->tabs[TAB_SEARCH].hwnd = hwndContainer;
1301
1302     SetWindowLongPtrW(hwndContainer, 0, (LONG_PTR)info);
1303
1304     ResizeTabChild(info, TAB_SEARCH);
1305
1306     return TRUE;
1307 }
1308
1309 /* The Index tab's sub-topic popup */
1310
1311 static void ResizePopupChild(HHInfo *info)
1312 {
1313     int scroll_width = GetSystemMetrics(SM_CXVSCROLL);
1314     int border_width = GetSystemMetrics(SM_CXBORDER);
1315     int edge_width = GetSystemMetrics(SM_CXEDGE);
1316     INT width, height;
1317     RECT rect;
1318
1319     if(!info)
1320         return;
1321
1322     GetClientRect(info->popup.hwndPopup, &rect);
1323     SetWindowPos(info->popup.hwndCallback, HWND_TOP, 0, 0,
1324                  rect.right, rect.bottom, SWP_NOMOVE);
1325
1326     rect.left = TAB_MARGIN;
1327     rect.top = TAB_TOP_PADDING + TAB_MARGIN;
1328     rect.right -= TAB_RIGHT_PADDING + TAB_MARGIN;
1329     rect.bottom -= TAB_MARGIN;
1330     width = rect.right-rect.left;
1331     height = rect.bottom-rect.top;
1332
1333     SetWindowPos(info->popup.hwndList, NULL, rect.left, rect.top, width, height,
1334                  SWP_NOZORDER | SWP_NOACTIVATE);
1335
1336     SendMessageW(info->popup.hwndList, LVM_SETCOLUMNWIDTH, 0,
1337                  width-scroll_width-2*border_width-2*edge_width);
1338 }
1339
1340 static LRESULT CALLBACK HelpPopup_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
1341 {
1342     HHInfo *info = (HHInfo *)GetWindowLongPtrW(hWnd, 0);
1343
1344     switch (message)
1345     {
1346     case WM_SIZE:
1347         ResizePopupChild(info);
1348         return 0;
1349     case WM_DESTROY:
1350         DestroyWindow(hWnd);
1351         return 0;
1352     case WM_CLOSE:
1353         ShowWindow(hWnd, SW_HIDE);
1354         return 0;
1355
1356     default:
1357         return DefWindowProcW(hWnd, message, wParam, lParam);
1358     }
1359
1360     return 0;
1361 }
1362
1363 static LRESULT CALLBACK PopupChild_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
1364 {
1365     switch (message)
1366     {
1367     case WM_NOTIFY: {
1368         NMHDR *nmhdr = (NMHDR*)lParam;
1369         switch(nmhdr->code)
1370         {
1371         case NM_DBLCLK: {
1372             HHInfo *info = (HHInfo*)GetWindowLongPtrW(hWnd, 0);
1373             IndexSubItem *iter;
1374
1375             if(info == 0 || lParam == 0)
1376                 return 0;
1377             iter = (IndexSubItem*) ((NMITEMACTIVATE *)lParam)->lParam;
1378             if(iter == 0)
1379                 return 0;
1380             NavigateToChm(info, info->index->merge.chm_file, iter->local);
1381             ShowWindow(info->popup.hwndPopup, SW_HIDE);
1382             return 0;
1383         }
1384         case NM_RETURN: {
1385             HHInfo *info = (HHInfo*)GetWindowLongPtrW(hWnd, 0);
1386             IndexSubItem *iter;
1387             LVITEMW lvItem;
1388
1389             if(info == 0)
1390                 return 0;
1391
1392             lvItem.iItem = (int) SendMessageW(info->popup.hwndList, LVM_GETSELECTIONMARK, 0, 0);
1393             lvItem.mask = TVIF_PARAM;
1394             SendMessageW(info->popup.hwndList, LVM_GETITEMW, 0, (LPARAM)&lvItem);
1395             iter = (IndexSubItem*) lvItem.lParam;
1396             NavigateToChm(info, info->index->merge.chm_file, iter->local);
1397             ShowWindow(info->popup.hwndPopup, SW_HIDE);
1398             return 0;
1399         }
1400         }
1401         break;
1402     }
1403     default:
1404         return DefWindowProcW(hWnd, message, wParam, lParam);
1405     }
1406
1407     return 0;
1408 }
1409
1410 static BOOL AddIndexPopup(HHInfo *info)
1411 {
1412     static const WCHAR szPopupChildClass[] = {'H','H',' ','P','o','p','u','p',' ','C','h','i','l','d',0};
1413     static const WCHAR windowCaptionW[] = {'S','e','l','e','c','t',' ','T','o','p','i','c',':',0};
1414     static const WCHAR windowClassW[] = {'H','H',' ','P','o','p','u','p',0};
1415     HWND hwndList, hwndPopup, hwndCallback;
1416     char hidden_column[] = "Column";
1417     WNDCLASSEXW wcex;
1418     LVCOLUMNA lvc;
1419
1420     if(info->tabs[TAB_INDEX].id == -1)
1421         return TRUE; /* No "Index" tab */
1422
1423     wcex.cbSize         = sizeof(WNDCLASSEXW);
1424     wcex.style          = CS_HREDRAW | CS_VREDRAW;
1425     wcex.lpfnWndProc    = HelpPopup_WndProc;
1426     wcex.cbClsExtra     = 0;
1427     wcex.cbWndExtra     = sizeof(LONG_PTR);
1428     wcex.hInstance      = hhctrl_hinstance;
1429     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1430     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
1431     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
1432     wcex.lpszMenuName   = NULL;
1433     wcex.lpszClassName  = windowClassW;
1434     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1435     RegisterClassExW(&wcex);
1436
1437     wcex.cbSize         = sizeof(WNDCLASSEXW);
1438     wcex.style          = 0;
1439     wcex.lpfnWndProc    = PopupChild_WndProc;
1440     wcex.cbClsExtra     = 0;
1441     wcex.cbWndExtra     = sizeof(LONG_PTR);
1442     wcex.hInstance      = hhctrl_hinstance;
1443     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1444     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
1445     wcex.hbrBackground  = (HBRUSH)(COLOR_BTNFACE + 1);
1446     wcex.lpszMenuName   = NULL;
1447     wcex.lpszClassName  = szPopupChildClass;
1448     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1449     RegisterClassExW(&wcex);
1450
1451     hwndPopup = CreateWindowExW(WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_APPWINDOW
1452                                  | WS_EX_WINDOWEDGE | WS_EX_RIGHTSCROLLBAR,
1453                                 windowClassW, windowCaptionW, WS_POPUPWINDOW
1454                                  | WS_OVERLAPPEDWINDOW | WS_VISIBLE
1455                                  | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, CW_USEDEFAULT,
1456                                 CW_USEDEFAULT, 300, 200, info->WinType.hwndHelp,
1457                                 NULL, hhctrl_hinstance, NULL);
1458     if (!hwndPopup)
1459         return FALSE;
1460
1461     hwndCallback = CreateWindowExW(WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR,
1462                                    szPopupChildClass, szEmpty, WS_CHILDWINDOW | WS_VISIBLE,
1463                                    0, 0, 0, 0,
1464                                    hwndPopup, NULL, hhctrl_hinstance, NULL);
1465     if (!hwndCallback)
1466         return FALSE;
1467
1468     ShowWindow(hwndPopup, SW_HIDE);
1469     hwndList = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW, szEmpty,
1470                                WS_CHILD | WS_BORDER | LVS_SINGLESEL | LVS_REPORT
1471                                 | LVS_NOCOLUMNHEADER, 50, 50, 100, 100,
1472                                hwndCallback, NULL, hhctrl_hinstance, NULL);
1473     if(!hwndList) {
1474         ERR("Could not create popup ListView control\n");
1475         return FALSE;
1476     }
1477     memset(&lvc, 0, sizeof(lvc));
1478     lvc.mask = LVCF_TEXT;
1479     lvc.pszText = hidden_column;
1480     if(SendMessageW(hwndList, LVM_INSERTCOLUMNA, 0, (LPARAM) &lvc) == -1)
1481     {
1482         ERR("Could not create popup ListView column\n");
1483         return FALSE;
1484     }
1485
1486     info->popup.hwndCallback = hwndCallback;
1487     info->popup.hwndPopup = hwndPopup;
1488     info->popup.hwndList = hwndList;
1489     SetWindowLongPtrW(hwndPopup, 0, (LONG_PTR)info);
1490     SetWindowLongPtrW(hwndCallback, 0, (LONG_PTR)info);
1491
1492     ResizePopupChild(info);
1493     ShowWindow(hwndList, SW_SHOW);
1494
1495     return TRUE;
1496 }
1497
1498 /* Viewer Window */
1499
1500 static void ExpandContract(HHInfo *pHHInfo)
1501 {
1502     RECT r, nav;
1503
1504     pHHInfo->WinType.fNotExpanded = !pHHInfo->WinType.fNotExpanded;
1505     GetWindowRect(pHHInfo->WinType.hwndHelp, &r);
1506     NP_GetNavigationRect(pHHInfo, &nav);
1507
1508     /* hide/show both the nav bar and the size bar */
1509     if (pHHInfo->WinType.fNotExpanded)
1510     {
1511         ShowWindow(pHHInfo->WinType.hwndNavigation, SW_HIDE);
1512         ShowWindow(pHHInfo->hwndSizeBar, SW_HIDE);
1513         r.left = r.left + nav.right;
1514
1515         SendMessageW(pHHInfo->WinType.hwndToolBar, TB_HIDEBUTTON, IDTB_EXPAND, MAKELPARAM(FALSE, 0));
1516         SendMessageW(pHHInfo->WinType.hwndToolBar, TB_HIDEBUTTON, IDTB_CONTRACT, MAKELPARAM(TRUE, 0));
1517     }
1518     else
1519     {
1520         ShowWindow(pHHInfo->WinType.hwndNavigation, SW_SHOW);
1521         ShowWindow(pHHInfo->hwndSizeBar, SW_SHOW);
1522         r.left = r.left - nav.right;
1523
1524         SendMessageW(pHHInfo->WinType.hwndToolBar, TB_HIDEBUTTON, IDTB_EXPAND, MAKELPARAM(TRUE, 0));
1525         SendMessageW(pHHInfo->WinType.hwndToolBar, TB_HIDEBUTTON, IDTB_CONTRACT, MAKELPARAM(FALSE, 0));
1526     }
1527
1528     MoveWindow(pHHInfo->WinType.hwndHelp, r.left, r.top, r.right-r.left, r.bottom-r.top, TRUE);
1529 }
1530
1531 static LRESULT Help_OnSize(HWND hWnd)
1532 {
1533     HHInfo *pHHInfo = (HHInfo *)GetWindowLongPtrW(hWnd, 0);
1534     DWORD dwSize;
1535     RECT rc;
1536
1537     if (!pHHInfo)
1538         return 0;
1539
1540     if (navigation_visible(pHHInfo))
1541     {
1542         NP_GetNavigationRect(pHHInfo, &rc);
1543         SetWindowPos(pHHInfo->WinType.hwndNavigation, HWND_TOP, 0, 0,
1544                      rc.right, rc.bottom, SWP_NOMOVE);
1545
1546         SB_GetSizeBarRect(pHHInfo, &rc);
1547         SetWindowPos(pHHInfo->hwndSizeBar, HWND_TOP, rc.left, rc.top,
1548                      rc.right, rc.bottom, SWP_SHOWWINDOW);
1549
1550     }
1551
1552     HP_GetHTMLRect(pHHInfo, &rc);
1553     SetWindowPos(pHHInfo->WinType.hwndHTML, HWND_TOP, rc.left, rc.top,
1554                  rc.right, rc.bottom, SWP_SHOWWINDOW);
1555
1556     /* Resize browser window taking the frame size into account */
1557     dwSize = GetSystemMetrics(SM_CXFRAME);
1558     ResizeWebBrowser(pHHInfo, rc.right - dwSize, rc.bottom - dwSize);
1559
1560     return 0;
1561 }
1562
1563 void UpdateHelpWindow(HHInfo *info)
1564 {
1565     if (!info->WinType.hwndHelp)
1566         return;
1567
1568     WARN("Only the size of the window is currently updated.\n");
1569     if (info->WinType.fsValidMembers & HHWIN_PARAM_RECT)
1570     {
1571         RECT *rect = &info->WinType.rcWindowPos;
1572         INT x, y, width, height;
1573
1574         x = rect->left;
1575         y = rect->top;
1576         width = rect->right - x;
1577         height = rect->bottom - y;
1578         SetWindowPos(info->WinType.hwndHelp, NULL, rect->left, rect->top, width, height,
1579                      SWP_NOZORDER | SWP_NOACTIVATE);
1580     }
1581 }
1582
1583 static LRESULT CALLBACK Help_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
1584 {
1585     switch (message)
1586     {
1587     case WM_COMMAND:
1588         if (HIWORD(wParam) == BN_CLICKED)
1589             TB_OnClick(hWnd, LOWORD(wParam));
1590         break;
1591     case WM_SIZE:
1592         return Help_OnSize(hWnd);
1593     case WM_CLOSE:
1594         ReleaseHelpViewer((HHInfo *)GetWindowLongPtrW(hWnd, 0));
1595         return 0;
1596     case WM_DESTROY:
1597         if(hh_process)
1598             PostQuitMessage(0);
1599         break;
1600
1601     default:
1602         return DefWindowProcW(hWnd, message, wParam, lParam);
1603     }
1604
1605     return 0;
1606 }
1607
1608 static BOOL HH_CreateHelpWindow(HHInfo *info)
1609 {
1610     HWND hWnd, parent = 0;
1611     RECT winPos = info->WinType.rcWindowPos;
1612     WNDCLASSEXW wcex;
1613     DWORD dwStyles, dwExStyles;
1614     DWORD x, y, width = 0, height = 0;
1615     LPCWSTR caption;
1616
1617     static const WCHAR windowClassW[] = {
1618         'H','H',' ', 'P','a','r','e','n','t',0
1619     };
1620
1621     wcex.cbSize         = sizeof(WNDCLASSEXW);
1622     wcex.style          = CS_HREDRAW | CS_VREDRAW;
1623     wcex.lpfnWndProc    = Help_WndProc;
1624     wcex.cbClsExtra     = 0;
1625     wcex.cbWndExtra     = sizeof(LONG_PTR);
1626     wcex.hInstance      = hhctrl_hinstance;
1627     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1628     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
1629     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
1630     wcex.lpszMenuName   = NULL;
1631     wcex.lpszClassName  = windowClassW;
1632     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1633
1634     RegisterClassExW(&wcex);
1635
1636     /* Read in window parameters if available */
1637     if (info->WinType.fsValidMembers & HHWIN_PARAM_STYLES)
1638     {
1639         dwStyles = info->WinType.dwStyles;
1640         if (!(info->WinType.dwStyles & WS_CHILD))
1641             dwStyles |= WS_OVERLAPPEDWINDOW;
1642     }
1643     else
1644         dwStyles = WS_OVERLAPPEDWINDOW | WS_VISIBLE |
1645                    WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
1646
1647     if (info->WinType.fsValidMembers & HHWIN_PARAM_EXSTYLES)
1648         dwExStyles = info->WinType.dwExStyles;
1649     else
1650         dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_APPWINDOW |
1651                      WS_EX_WINDOWEDGE | WS_EX_RIGHTSCROLLBAR;
1652
1653     if (info->WinType.fsValidMembers & HHWIN_PARAM_RECT)
1654     {
1655         x = winPos.left;
1656         y = winPos.top;
1657         width = winPos.right - x;
1658         height = winPos.bottom - y;
1659     }
1660     if (!width || !height)
1661     {
1662         x = WINTYPE_DEFAULT_X;
1663         y = WINTYPE_DEFAULT_Y;
1664         width = WINTYPE_DEFAULT_WIDTH;
1665         height = WINTYPE_DEFAULT_HEIGHT;
1666     }
1667
1668     if (!(info->WinType.fsWinProperties & HHWIN_PROP_TRI_PANE) && info->WinType.fNotExpanded)
1669     {
1670         if (!(info->WinType.fsValidMembers & HHWIN_PARAM_NAV_WIDTH) &&
1671               info->WinType.iNavWidth == 0)
1672         {
1673             info->WinType.iNavWidth = WINTYPE_DEFAULT_NAVWIDTH;
1674         }
1675
1676         x += info->WinType.iNavWidth;
1677         width -= info->WinType.iNavWidth;
1678     }
1679
1680
1681     caption = info->WinType.pszCaption;
1682     if (!*caption) caption = info->pCHMInfo->defTitle;
1683
1684     if (info->WinType.dwStyles & WS_CHILD)
1685         parent = info->WinType.hwndCaller;
1686
1687     hWnd = CreateWindowExW(dwExStyles, windowClassW, caption,
1688                            dwStyles, x, y, width, height, parent, NULL, hhctrl_hinstance, NULL);
1689     if (!hWnd)
1690         return FALSE;
1691
1692     ShowWindow(hWnd, SW_SHOW);
1693     UpdateWindow(hWnd);
1694
1695     /* store the pointer to the HH info struct */
1696     SetWindowLongPtrW(hWnd, 0, (LONG_PTR)info);
1697
1698     info->WinType.hwndHelp = hWnd;
1699     return TRUE;
1700 }
1701
1702 static void HH_CreateFont(HHInfo *pHHInfo)
1703 {
1704     LOGFONTW lf;
1705
1706     GetObjectW(GetStockObject(DEFAULT_GUI_FONT), sizeof(LOGFONTW), &lf);
1707     lf.lfWeight = FW_NORMAL;
1708     lf.lfItalic = FALSE;
1709     lf.lfUnderline = FALSE;
1710
1711     pHHInfo->hFont = CreateFontIndirectW(&lf);
1712 }
1713
1714 static void HH_InitRequiredControls(DWORD dwControls)
1715 {
1716     INITCOMMONCONTROLSEX icex;
1717
1718     icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
1719     icex.dwICC = dwControls;
1720     InitCommonControlsEx(&icex);
1721 }
1722
1723 /* Creates the whole package */
1724 static BOOL CreateViewer(HHInfo *pHHInfo)
1725 {
1726     HH_CreateFont(pHHInfo);
1727
1728     if (!HH_CreateHelpWindow(pHHInfo))
1729         return FALSE;
1730
1731     HH_InitRequiredControls(ICC_BAR_CLASSES);
1732
1733     if (!HH_AddToolbar(pHHInfo))
1734         return FALSE;
1735
1736     HH_RegisterChildWndClass(pHHInfo);
1737
1738     if (!HH_AddNavigationPane(pHHInfo))
1739         return FALSE;
1740
1741     HH_RegisterSizeBarClass(pHHInfo);
1742
1743     if (!HH_AddSizeBar(pHHInfo))
1744         return FALSE;
1745
1746     if (!HH_AddHTMLPane(pHHInfo))
1747         return FALSE;
1748
1749     if (!AddContentTab(pHHInfo))
1750         return FALSE;
1751
1752     if (!AddIndexTab(pHHInfo))
1753         return FALSE;
1754
1755     if (!AddIndexPopup(pHHInfo))
1756         return FALSE;
1757
1758     if (!AddSearchTab(pHHInfo))
1759         return FALSE;
1760
1761     InitContent(pHHInfo);
1762     InitIndex(pHHInfo);
1763
1764     pHHInfo->viewer_initialized = TRUE;
1765     return TRUE;
1766 }
1767
1768 void wintype_stringsW_free(struct wintype_stringsW *stringsW)
1769 {
1770     heap_free(stringsW->pszType);
1771     heap_free(stringsW->pszCaption);
1772     heap_free(stringsW->pszToc);
1773     heap_free(stringsW->pszIndex);
1774     heap_free(stringsW->pszFile);
1775     heap_free(stringsW->pszHome);
1776     heap_free(stringsW->pszJump1);
1777     heap_free(stringsW->pszJump2);
1778     heap_free(stringsW->pszUrlJump1);
1779     heap_free(stringsW->pszUrlJump2);
1780 }
1781
1782 void wintype_stringsA_free(struct wintype_stringsA *stringsA)
1783 {
1784     heap_free(stringsA->pszType);
1785     heap_free(stringsA->pszCaption);
1786     heap_free(stringsA->pszToc);
1787     heap_free(stringsA->pszIndex);
1788     heap_free(stringsA->pszFile);
1789     heap_free(stringsA->pszHome);
1790     heap_free(stringsA->pszJump1);
1791     heap_free(stringsA->pszJump2);
1792     heap_free(stringsA->pszUrlJump1);
1793     heap_free(stringsA->pszUrlJump2);
1794     heap_free(stringsA->pszCustomTabs);
1795 }
1796
1797 void ReleaseHelpViewer(HHInfo *info)
1798 {
1799     TRACE("(%p)\n", info);
1800
1801     if (!info)
1802         return;
1803
1804     list_remove(&info->entry);
1805
1806     wintype_stringsA_free(&info->stringsA);
1807     wintype_stringsW_free(&info->stringsW);
1808
1809     if (info->pCHMInfo)
1810         CloseCHM(info->pCHMInfo);
1811
1812     ReleaseWebBrowser(info);
1813     ReleaseContent(info);
1814     ReleaseIndex(info);
1815     ReleaseSearch(info);
1816
1817     if(info->contents.hImageList)
1818         ImageList_Destroy(info->contents.hImageList);
1819     if(info->WinType.hwndHelp)
1820         DestroyWindow(info->WinType.hwndHelp);
1821
1822     heap_free(info);
1823     OleUninitialize();
1824 }
1825
1826 HHInfo *CreateHelpViewer(HHInfo *info, LPCWSTR filename, HWND caller)
1827 {
1828     HHInfo *tmp_info;
1829     int i;
1830
1831     if(!info)
1832     {
1833         info = heap_alloc_zero(sizeof(HHInfo));
1834         list_add_tail(&window_list, &info->entry);
1835     }
1836
1837     /* Set the invalid tab ID (-1) as the default value for all
1838      * of the tabs, this matches a failed TCM_INSERTITEM call.
1839      */
1840     for(i=0;i<sizeof(info->tabs)/sizeof(HHTab);i++)
1841         info->tabs[i].id = -1;
1842
1843     OleInitialize(NULL);
1844
1845     info->pCHMInfo = OpenCHM(filename);
1846     if(!info->pCHMInfo) {
1847         ReleaseHelpViewer(info);
1848         return NULL;
1849     }
1850
1851     if (!LoadWinTypeFromCHM(info)) {
1852         ReleaseHelpViewer(info);
1853         return NULL;
1854     }
1855     info->WinType.hwndCaller = caller;
1856
1857     /* If the window is already open then load the file in that existing window */
1858     if ((tmp_info = find_window(info->WinType.pszType)) && tmp_info != info)
1859     {
1860         ReleaseHelpViewer(info);
1861         return CreateHelpViewer(tmp_info, filename, caller);
1862     }
1863
1864     if(!info->viewer_initialized && !CreateViewer(info)) {
1865         ReleaseHelpViewer(info);
1866         return NULL;
1867     }
1868
1869     return info;
1870 }
1871
1872 /*
1873  * Search the table of HTML entities and return the corresponding ANSI symbol.
1874  */
1875 static char find_html_symbol(const char *entity, int entity_len)
1876 {
1877     int max = sizeof(html_encoded_symbols)/sizeof(html_encoded_symbols[0])-1;
1878     int min = 0, dir;
1879
1880     while(min <= max)
1881     {
1882         int pos = (min+max)/2;
1883         const char *encoded_symbol = html_encoded_symbols[pos].html_code;
1884         dir = strncmp(encoded_symbol, entity, entity_len);
1885         if(dir == 0 && !encoded_symbol[entity_len]) return html_encoded_symbols[pos].ansi_symbol;
1886         if(dir < 0)
1887             min = pos+1;
1888         else
1889             max = pos-1;
1890     }
1891     return 0;
1892 }
1893
1894 /*
1895  * Decode a string containing HTML encoded characters into a unicode string.
1896  */
1897 WCHAR *decode_html(const char *html_fragment, int html_fragment_len, UINT code_page)
1898 {
1899     const char *h = html_fragment;
1900     char *amp, *sem, symbol, *tmp;
1901     int len, tmp_len = 0;
1902     WCHAR *unicode_text;
1903
1904     tmp = heap_alloc(html_fragment_len+1);
1905     while(1)
1906     {
1907         symbol = 0;
1908         amp = strchr(h, '&');
1909         if(!amp) break;
1910         len = amp-h;
1911         /* Copy the characters prior to the HTML encoded character */
1912         memcpy(&tmp[tmp_len], h, len);
1913         tmp_len += len;
1914         amp++; /* skip ampersand */
1915         sem = strchr(amp, ';');
1916         /* Require a semicolon after the ampersand */
1917         if(!sem)
1918         {
1919             h = amp;
1920             tmp[tmp_len++] = '&';
1921             continue;
1922         }
1923         /* Find the symbol either by using the ANSI character number (prefixed by the pound symbol)
1924          * or by searching the HTML entity table */
1925         len = sem-amp;
1926         if(amp[0] == '#')
1927         {
1928             char *endnum = NULL;
1929             int tmp;
1930
1931             tmp = (char) strtol(amp, &endnum, 10);
1932             if(endnum == sem)
1933                 symbol = tmp;
1934         }
1935         else
1936             symbol = find_html_symbol(amp, len);
1937         if(!symbol)
1938         {
1939             FIXME("Failed to translate HTML encoded character '&%.*s;'.\n", len, amp);
1940             h = amp;
1941             tmp[tmp_len++] = '&';
1942             continue;
1943         }
1944         /* Insert the new symbol */
1945         h = sem+1;
1946         tmp[tmp_len++] = symbol;
1947     }
1948     /* Convert any remaining characters */
1949     len = html_fragment_len-(h-html_fragment);
1950     memcpy(&tmp[tmp_len], h, len);
1951     tmp_len += len;
1952     tmp[tmp_len++] = 0; /* NULL-terminate the string */
1953
1954     len = MultiByteToWideChar(code_page, 0, tmp, tmp_len, NULL, 0);
1955     unicode_text = heap_alloc(len*sizeof(WCHAR));
1956     MultiByteToWideChar(code_page, 0, tmp, tmp_len, unicode_text, len);
1957     heap_free(tmp);
1958     return unicode_text;
1959 }
1960
1961 /* Find the HTMLHelp structure for an existing window title */
1962 HHInfo *find_window(const WCHAR *window)
1963 {
1964     HHInfo *info;
1965
1966     LIST_FOR_EACH_ENTRY(info, &window_list, HHInfo, entry)
1967     {
1968         if (strcmpW(info->WinType.pszType, window) == 0)
1969             return info;
1970     }
1971     return NULL;
1972 }