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     int iSize;
  55
  56     iSize = LoadStringW(hhctrl_hinstance, dwID, NULL, 0);
  57     iSize += 2; /* some strings (tab text) needs double-null termination */
  58
  59     string = heap_alloc(iSize * sizeof(WCHAR));
  60     LoadStringW(hhctrl_hinstance, dwID, string, iSize);
  61
  62     return string;
  63 }
  64
  65 static HRESULT navigate_url(HHInfo *info, LPCWSTR surl)
  66 {
  67     VARIANT url;
  68     HRESULT hres;
  69
  70     TRACE("%s\n", debugstr_w(surl));
  71
  72     V_VT(&url) = VT_BSTR;
  73     V_BSTR(&url) = SysAllocString(surl);
  74
  75     hres = IWebBrowser2_Navigate2(info->web_browser, &url, 0, 0, 0, 0);
  76
  77     VariantClear(&url);
  78
  79     if(FAILED(hres))
  80         TRACE("Navigation failed: %08x\n", hres);
  81
  82     return hres;
  83 }
  84
  85 BOOL NavigateToUrl(HHInfo *info, LPCWSTR surl)
  86 {
  87     ChmPath chm_path;
  88     BOOL ret;
  89     HRESULT hres;
  90
  91     hres = navigate_url(info, surl);
  92     if(SUCCEEDED(hres))
  93         return TRUE;
  94
  95     SetChmPath(&chm_path, info->pCHMInfo->szFile, surl);
  96     ret = NavigateToChm(info, chm_path.chm_file, chm_path.chm_index);
  97
  98     heap_free(chm_path.chm_file);
  99     heap_free(chm_path.chm_index);
 100
 101     return ret;
 102 }
 103
 104 BOOL NavigateToChm(HHInfo *info, LPCWSTR file, LPCWSTR index)
 105 {
 106     WCHAR buf[INTERNET_MAX_URL_LENGTH];
 107     WCHAR full_path[MAX_PATH];
 108     LPWSTR ptr;
 109
 110     static const WCHAR url_format[] =
 111         {'m','k',':','@','M','S','I','T','S','t','o','r','e',':','%','s',':',':','%','s',0};
 112
 113     TRACE("%p %s %s\n", info, debugstr_w(file), debugstr_w(index));
 114
 115     if (!info->web_browser)
 116         return FALSE;
 117
 118     if(!GetFullPathNameW(file, sizeof(full_path), full_path, NULL)) {
 119         WARN("GetFullPathName failed: %u\n", GetLastError());
 120         return FALSE;
 121     }
 122
 123     wsprintfW(buf, url_format, full_path, index);
 124
 125     /* FIXME: HACK */
 126     if((ptr = strchrW(buf, '#')))
 127        *ptr = 0;
 128
 129     return SUCCEEDED(navigate_url(info, buf));
 130 }
 131
 132 /* Size Bar */
 133
 134 #define SIZEBAR_WIDTH   4
 135
 136 static const WCHAR szSizeBarClass[] = {
 137     'H','H',' ','S','i','z','e','B','a','r',0
 138 };
 139
 140 /* Draw the SizeBar */
 141 static void SB_OnPaint(HWND hWnd)
 142 {
 143     PAINTSTRUCT ps;
 144     HDC hdc;
 145     RECT rc;
 146
 147     hdc = BeginPaint(hWnd, &ps);
 148
 149     GetClientRect(hWnd, &rc);
 150
 151     /* dark frame */
 152     rc.right += 1;
 153     rc.bottom -= 1;
 154     FrameRect(hdc, &rc, GetStockObject(GRAY_BRUSH));
 155
 156     /* white highlight */
 157     SelectObject(hdc, GetStockObject(WHITE_PEN));
 158     MoveToEx(hdc, rc.right, 1, NULL);
 159     LineTo(hdc, 1, 1);
 160     LineTo(hdc, 1, rc.bottom - 1);
 161
 162
 163     MoveToEx(hdc, 0, rc.bottom, NULL);
 164     LineTo(hdc, rc.right, rc.bottom);
 165
 166     EndPaint(hWnd, &ps);
 167 }
 168
 169 static void SB_OnLButtonDown(HWND hWnd, WPARAM wParam, LPARAM lParam)
 170 {
 171     SetCapture(hWnd);
 172 }
 173
 174 static void SB_OnLButtonUp(HWND hWnd, WPARAM wParam, LPARAM lParam)
 175 {
 176     HHInfo *pHHInfo = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 177     POINT pt;
 178
 179     pt.x = (short)LOWORD(lParam);
 180     pt.y = (short)HIWORD(lParam);
 181
 182     /* update the window sizes */
 183     pHHInfo->WinType.iNavWidth += pt.x;
 184     Help_OnSize(hWnd);
 185
 186     ReleaseCapture();
 187 }
 188
 189 static void SB_OnMouseMove(HWND hWnd, WPARAM wParam, LPARAM lParam)
 190 {
 191     /* ignore WM_MOUSEMOVE if not dragging the SizeBar */
 192     if (!(wParam & MK_LBUTTON))
 193         return;
 194 }
 195
 196 static LRESULT CALLBACK SizeBar_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 197 {
 198     switch (message)
 199     {
 200         case WM_LBUTTONDOWN:
 201             SB_OnLButtonDown(hWnd, wParam, lParam);
 202             break;
 203         case WM_LBUTTONUP:
 204             SB_OnLButtonUp(hWnd, wParam, lParam);
 205             break;
 206         case WM_MOUSEMOVE:
 207             SB_OnMouseMove(hWnd, wParam, lParam);
 208             break;
 209         case WM_PAINT:
 210             SB_OnPaint(hWnd);
 211             break;
 212         default:
 213             return DefWindowProcW(hWnd, message, wParam, lParam);
 214     }
 215
 216     return 0;
 217 }
 218
 219 static void HH_RegisterSizeBarClass(HHInfo *pHHInfo)
 220 {
 221     WNDCLASSEXW wcex;
 222
 223     wcex.cbSize         = sizeof(WNDCLASSEXW);
 224     wcex.style          = 0;
 225     wcex.lpfnWndProc    = SizeBar_WndProc;
 226     wcex.cbClsExtra     = 0;
 227     wcex.cbWndExtra     = 0;
 228     wcex.hInstance      = hhctrl_hinstance;
 229     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 230     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_SIZEWE);
 231     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
 232     wcex.lpszMenuName   = NULL;
 233     wcex.lpszClassName  = szSizeBarClass;
 234     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 235
 236     RegisterClassExW(&wcex);
 237 }
 238
 239 static void SB_GetSizeBarRect(HHInfo *info, RECT *rc)
 240 {
 241     RECT rectWND, rectTB, rectNP;
 242
 243     GetClientRect(info->WinType.hwndHelp, &rectWND);
 244     GetClientRect(info->WinType.hwndToolBar, &rectTB);
 245     GetClientRect(info->WinType.hwndNavigation, &rectNP);
 246
 247     rc->left = rectNP.right;
 248     rc->top = rectTB.bottom;
 249     rc->bottom = rectWND.bottom - rectTB.bottom;
 250     rc->right = SIZEBAR_WIDTH;
 251 }
 252
 253 static BOOL HH_AddSizeBar(HHInfo *pHHInfo)
 254 {
 255     HWND hWnd;
 256     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 257     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE | WS_OVERLAPPED;
 258     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 259     RECT rc;
 260
 261     SB_GetSizeBarRect(pHHInfo, &rc);
 262
 263     hWnd = CreateWindowExW(dwExStyles, szSizeBarClass, szEmpty, dwStyles,
 264                            rc.left, rc.top, rc.right, rc.bottom,
 265                            hwndParent, NULL, hhctrl_hinstance, NULL);
 266     if (!hWnd)
 267         return FALSE;
 268
 269     /* store the pointer to the HH info struct */
 270     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)pHHInfo);
 271
 272     pHHInfo->hwndSizeBar = hWnd;
 273     return TRUE;
 274 }
 275
 276 /* Child Window */
 277
 278 static const WCHAR szChildClass[] = {
 279     'H','H',' ','C','h','i','l','d',0
 280 };
 281
 282 static LRESULT Child_OnPaint(HWND hWnd)
 283 {
 284     PAINTSTRUCT ps;
 285     HDC hdc;
 286     RECT rc;
 287
 288     hdc = BeginPaint(hWnd, &ps);
 289
 290     /* Only paint the Navigation pane, identified by the fact
 291      * that it has a child window
 292      */
 293     if (GetWindow(hWnd, GW_CHILD))
 294     {
 295         GetClientRect(hWnd, &rc);
 296
 297         /* set the border color */
 298         SelectObject(hdc, GetStockObject(DC_PEN));
 299         SetDCPenColor(hdc, GetSysColor(COLOR_BTNSHADOW));
 300
 301         /* Draw the top border */
 302         LineTo(hdc, rc.right, 0);
 303
 304         SelectObject(hdc, GetStockObject(WHITE_PEN));
 305         MoveToEx(hdc, 0, 1, NULL);
 306         LineTo(hdc, rc.right, 1);
 307     }
 308
 309     EndPaint(hWnd, &ps);
 310
 311     return 0;
 312 }
 313
 314 static void ResizeTabChild(HHInfo *info, HWND hwnd)
 315 {
 316     RECT rect, tabrc;
 317     DWORD cnt;
 318
 319     GetClientRect(info->WinType.hwndNavigation, &rect);
 320     SendMessageW(info->hwndTabCtrl, TCM_GETITEMRECT, 0, (LPARAM)&tabrc);
 321     cnt = SendMessageW(info->hwndTabCtrl, TCM_GETROWCOUNT, 0, 0);
 322
 323     rect.left = TAB_MARGIN;
 324     rect.top = TAB_TOP_PADDING + cnt*(tabrc.bottom-tabrc.top) + TAB_MARGIN;
 325     rect.right -= TAB_RIGHT_PADDING + TAB_MARGIN;
 326     rect.bottom -= TAB_MARGIN;
 327
 328     SetWindowPos(hwnd, NULL, rect.left, rect.top, rect.right-rect.left,
 329                  rect.bottom-rect.top, SWP_NOZORDER | SWP_NOACTIVATE);
 330 }
 331
 332 static LRESULT Child_OnSize(HWND hwnd)
 333 {
 334     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 335     RECT rect;
 336
 337     if(!info || hwnd != info->WinType.hwndNavigation)
 338         return 0;
 339
 340     GetClientRect(hwnd, &rect);
 341     SetWindowPos(info->hwndTabCtrl, HWND_TOP, 0, 0,
 342                  rect.right - TAB_RIGHT_PADDING,
 343                  rect.bottom - TAB_TOP_PADDING, SWP_NOMOVE);
 344
 345     ResizeTabChild(info, info->tabs[TAB_CONTENTS].hwnd);
 346     return 0;
 347 }
 348
 349 static LRESULT OnTabChange(HWND hwnd)
 350 {
 351     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 352
 353     TRACE("%p\n", hwnd);
 354
 355     if (!info)
 356         return 0;
 357
 358     if(info->tabs[info->current_tab].hwnd)
 359         ShowWindow(info->tabs[info->current_tab].hwnd, SW_HIDE);
 360
 361     info->current_tab = SendMessageW(info->hwndTabCtrl, TCM_GETCURSEL, 0, 0);
 362
 363     if(info->tabs[info->current_tab].hwnd)
 364         ShowWindow(info->tabs[info->current_tab].hwnd, SW_SHOW);
 365
 366     return 0;
 367 }
 368
 369 static LRESULT OnTopicChange(HWND hwnd, ContentItem *item)
 370 {
 371     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 372     LPCWSTR chmfile = NULL;
 373     ContentItem *iter = item;
 374
 375     if(!item || !info)
 376         return 0;
 377
 378     TRACE("name %s loal %s\n", debugstr_w(item->name), debugstr_w(item->local));
 379
 380     while(iter) {
 381         if(iter->merge.chm_file) {
 382             chmfile = iter->merge.chm_file;
 383             break;
 384         }
 385         iter = iter->parent;
 386     }
 387
 388     NavigateToChm(info, chmfile, item->local);
 389     return 0;
 390 }
 391
 392 static LRESULT CALLBACK Child_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 393 {
 394     switch (message)
 395     {
 396     case WM_PAINT:
 397         return Child_OnPaint(hWnd);
 398     case WM_SIZE:
 399         return Child_OnSize(hWnd);
 400     case WM_NOTIFY: {
 401         NMHDR *nmhdr = (NMHDR*)lParam;
 402         switch(nmhdr->code) {
 403         case TCN_SELCHANGE:
 404             return OnTabChange(hWnd);
 405         case TVN_SELCHANGEDW:
 406             return OnTopicChange(hWnd, (ContentItem*)((NMTREEVIEWW *)lParam)->itemNew.lParam);
 407         }
 408         break;
 409     }
 410     default:
 411         return DefWindowProcW(hWnd, message, wParam, lParam);
 412     }
 413
 414     return 0;
 415 }
 416
 417 static void HH_RegisterChildWndClass(HHInfo *pHHInfo)
 418 {
 419     WNDCLASSEXW wcex;
 420
 421     wcex.cbSize         = sizeof(WNDCLASSEXW);
 422     wcex.style          = 0;
 423     wcex.lpfnWndProc    = Child_WndProc;
 424     wcex.cbClsExtra     = 0;
 425     wcex.cbWndExtra     = 0;
 426     wcex.hInstance      = hhctrl_hinstance;
 427     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 428     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
 429     wcex.hbrBackground  = (HBRUSH)(COLOR_BTNFACE + 1);
 430     wcex.lpszMenuName   = NULL;
 431     wcex.lpszClassName  = szChildClass;
 432     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 433
 434     RegisterClassExW(&wcex);
 435 }
 436
 437 /* Toolbar */
 438
 439 #define ICON_SIZE   20
 440
 441 static void TB_OnClick(HWND hWnd, DWORD dwID)
 442 {
 443     HHInfo *info = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 444
 445     switch (dwID)
 446     {
 447         case IDTB_STOP:
 448             DoPageAction(info, WB_STOP);
 449             break;
 450         case IDTB_REFRESH:
 451             DoPageAction(info, WB_REFRESH);
 452             break;
 453         case IDTB_BACK:
 454             DoPageAction(info, WB_GOBACK);
 455             break;
 456         case IDTB_HOME:
 457             NavigateToChm(info, info->pCHMInfo->szFile, info->WinType.pszHome);
 458             break;
 459         case IDTB_FORWARD:
 460             DoPageAction(info, WB_GOFORWARD);
 461             break;
 462         case IDTB_EXPAND:
 463         case IDTB_CONTRACT:
 464         case IDTB_SYNC:
 465         case IDTB_PRINT:
 466         case IDTB_OPTIONS:
 467         case IDTB_BROWSE_FWD:
 468         case IDTB_BROWSE_BACK:
 469         case IDTB_JUMP1:
 470         case IDTB_JUMP2:
 471         case IDTB_CUSTOMIZE:
 472         case IDTB_ZOOM:
 473         case IDTB_TOC_NEXT:
 474         case IDTB_TOC_PREV:
 475             break;
 476     }
 477 }
 478
 479 static void TB_AddButton(TBBUTTON *pButtons, DWORD dwIndex, DWORD dwID)
 480 {
 481     /* FIXME: Load the correct button bitmaps */
 482     pButtons[dwIndex].iBitmap = STD_PRINT;
 483     pButtons[dwIndex].idCommand = dwID;
 484     pButtons[dwIndex].fsState = TBSTATE_ENABLED;
 485     pButtons[dwIndex].fsStyle = BTNS_BUTTON;
 486     pButtons[dwIndex].dwData = 0;
 487     pButtons[dwIndex].iString = 0;
 488 }
 489
 490 static void TB_AddButtonsFromFlags(TBBUTTON *pButtons, DWORD dwButtonFlags, LPDWORD pdwNumButtons)
 491 {
 492     *pdwNumButtons = 0;
 493
 494     if (dwButtonFlags & HHWIN_BUTTON_EXPAND)
 495         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_EXPAND);
 496
 497     if (dwButtonFlags & HHWIN_BUTTON_BACK)
 498         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_BACK);
 499
 500     if (dwButtonFlags & HHWIN_BUTTON_FORWARD)
 501         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_FORWARD);
 502
 503     if (dwButtonFlags & HHWIN_BUTTON_STOP)
 504         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_STOP);
 505
 506     if (dwButtonFlags & HHWIN_BUTTON_REFRESH)
 507         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_REFRESH);
 508
 509     if (dwButtonFlags & HHWIN_BUTTON_HOME)
 510         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_HOME);
 511
 512     if (dwButtonFlags & HHWIN_BUTTON_SYNC)
 513         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_SYNC);
 514
 515     if (dwButtonFlags & HHWIN_BUTTON_OPTIONS)
 516         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_OPTIONS);
 517
 518     if (dwButtonFlags & HHWIN_BUTTON_PRINT)
 519         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_PRINT);
 520
 521     if (dwButtonFlags & HHWIN_BUTTON_JUMP1)
 522         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_JUMP1);
 523
 524     if (dwButtonFlags & HHWIN_BUTTON_JUMP2)
 525         TB_AddButton(pButtons,(*pdwNumButtons)++, IDTB_JUMP2);
 526
 527     if (dwButtonFlags & HHWIN_BUTTON_ZOOM)
 528         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_ZOOM);
 529
 530     if (dwButtonFlags & HHWIN_BUTTON_TOC_NEXT)
 531         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_TOC_NEXT);
 532
 533     if (dwButtonFlags & HHWIN_BUTTON_TOC_PREV)
 534         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_TOC_PREV);
 535 }
 536
 537 static BOOL HH_AddToolbar(HHInfo *pHHInfo)
 538 {
 539     HWND hToolbar;
 540     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 541     DWORD toolbarFlags;
 542     TBBUTTON buttons[IDTB_TOC_PREV - IDTB_EXPAND];
 543     TBADDBITMAP tbAB;
 544     DWORD dwStyles, dwExStyles;
 545     DWORD dwNumButtons, dwIndex;
 546
 547     if (pHHInfo->WinType.fsWinProperties & HHWIN_PARAM_TB_FLAGS)
 548         toolbarFlags = pHHInfo->WinType.fsToolBarFlags;
 549     else
 550         toolbarFlags = HHWIN_DEF_BUTTONS;
 551
 552     TB_AddButtonsFromFlags(buttons, toolbarFlags, &dwNumButtons);
 553
 554     dwStyles = WS_CHILDWINDOW | WS_VISIBLE | TBSTYLE_FLAT |
 555                TBSTYLE_WRAPABLE | TBSTYLE_TOOLTIPS | CCS_NODIVIDER;
 556     dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 557
 558     hToolbar = CreateWindowExW(dwExStyles, TOOLBARCLASSNAMEW, NULL, dwStyles,
 559                                0, 0, 0, 0, hwndParent, NULL,
 560                                hhctrl_hinstance, NULL);
 561     if (!hToolbar)
 562         return FALSE;
 563
 564     SendMessageW(hToolbar, TB_SETBITMAPSIZE, 0, MAKELONG(ICON_SIZE, ICON_SIZE));
 565     SendMessageW(hToolbar, TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);
 566     SendMessageW(hToolbar, WM_SETFONT, (WPARAM)pHHInfo->hFont, TRUE);
 567
 568     /* FIXME: Load correct icons for all buttons */
 569     tbAB.hInst = HINST_COMMCTRL;
 570     tbAB.nID = IDB_STD_LARGE_COLOR;
 571     SendMessageW(hToolbar, TB_ADDBITMAP, 0, (LPARAM)&tbAB);
 572
 573     for (dwIndex = 0; dwIndex < dwNumButtons; dwIndex++)
 574     {
 575         LPWSTR szBuf = HH_LoadString(buttons[dwIndex].idCommand);
 576         DWORD dwLen = strlenW(szBuf);
 577         szBuf[dwLen + 2] = 0; /* Double-null terminate */
 578
 579         buttons[dwIndex].iString = (DWORD)SendMessageW(hToolbar, TB_ADDSTRINGW, 0, (LPARAM)szBuf);
 580         heap_free(szBuf);
 581     }
 582
 583     SendMessageW(hToolbar, TB_ADDBUTTONSW, dwNumButtons, (LPARAM)&buttons);
 584     SendMessageW(hToolbar, TB_AUTOSIZE, 0, 0);
 585     ShowWindow(hToolbar, SW_SHOW);
 586
 587     pHHInfo->WinType.hwndToolBar = hToolbar;
 588     return TRUE;
 589 }
 590
 591 /* Navigation Pane */
 592
 593 static void NP_GetNavigationRect(HHInfo *pHHInfo, RECT *rc)
 594 {
 595     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 596     HWND hwndToolbar = pHHInfo->WinType.hwndToolBar;
 597     RECT rectWND, rectTB;
 598
 599     GetClientRect(hwndParent, &rectWND);
 600     GetClientRect(hwndToolbar, &rectTB);
 601
 602     rc->left = 0;
 603     rc->top = rectTB.bottom;
 604     rc->bottom = rectWND.bottom - rectTB.bottom;
 605
 606     if (!(pHHInfo->WinType.fsValidMembers & HHWIN_PARAM_NAV_WIDTH) &&
 607           pHHInfo->WinType.iNavWidth == 0)
 608     {
 609         pHHInfo->WinType.iNavWidth = WINTYPE_DEFAULT_NAVWIDTH;
 610     }
 611
 612     rc->right = pHHInfo->WinType.iNavWidth;
 613 }
 614
 615 static DWORD NP_CreateTab(HINSTANCE hInstance, HWND hwndTabCtrl, DWORD index)
 616 {
 617     TCITEMW tie;
 618     LPWSTR tabText = HH_LoadString(index);
 619     DWORD ret;
 620
 621     tie.mask = TCIF_TEXT;
 622     tie.pszText = tabText;
 623
 624     ret = SendMessageW( hwndTabCtrl, TCM_INSERTITEMW, index, (LPARAM)&tie );
 625
 626     heap_free(tabText);
 627     return ret;
 628 }
 629
 630 static BOOL HH_AddNavigationPane(HHInfo *info)
 631 {
 632     HWND hWnd, hwndTabCtrl;
 633     HWND hwndParent = info->WinType.hwndHelp;
 634     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE;
 635     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 636     RECT rc;
 637
 638     NP_GetNavigationRect(info, &rc);
 639
 640     hWnd = CreateWindowExW(dwExStyles, szChildClass, szEmpty, dwStyles,
 641                            rc.left, rc.top, rc.right, rc.bottom,
 642                            hwndParent, NULL, hhctrl_hinstance, NULL);
 643     if (!hWnd)
 644         return FALSE;
 645
 646     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)info);
 647
 648     hwndTabCtrl = CreateWindowExW(dwExStyles, WC_TABCONTROLW, szEmpty, dwStyles,
 649                                   0, TAB_TOP_PADDING,
 650                                   rc.right - TAB_RIGHT_PADDING,
 651                                   rc.bottom - TAB_TOP_PADDING,
 652                                   hWnd, NULL, hhctrl_hinstance, NULL);
 653     if (!hwndTabCtrl)
 654         return FALSE;
 655
 656     if (*info->WinType.pszToc)
 657         info->tabs[TAB_CONTENTS].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_CONTENTS);
 658
 659     if (*info->WinType.pszIndex)
 660         info->tabs[TAB_INDEX].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_INDEX);
 661
 662     if (info->WinType.fsWinProperties & HHWIN_PROP_TAB_SEARCH)
 663         info->tabs[TAB_SEARCH].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_SEARCH);
 664
 665     if (info->WinType.fsWinProperties & HHWIN_PROP_TAB_FAVORITES)
 666         info->tabs[TAB_FAVORITES].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_FAVORITES);
 667
 668     SendMessageW(hwndTabCtrl, WM_SETFONT, (WPARAM)info->hFont, TRUE);
 669
 670     info->hwndTabCtrl = hwndTabCtrl;
 671     info->WinType.hwndNavigation = hWnd;
 672     return TRUE;
 673 }
 674
 675 /* HTML Pane */
 676
 677 static void HP_GetHTMLRect(HHInfo *info, RECT *rc)
 678 {
 679     RECT rectTB, rectWND, rectNP, rectSB;
 680
 681     GetClientRect(info->WinType.hwndHelp, &rectWND);
 682     GetClientRect(info->WinType.hwndToolBar, &rectTB);
 683     GetClientRect(info->WinType.hwndNavigation, &rectNP);
 684     GetClientRect(info->hwndSizeBar, &rectSB);
 685
 686     rc->left = rectNP.right + rectSB.right;
 687     rc->top = rectTB.bottom;
 688     rc->right = rectWND.right - rc->left;
 689     rc->bottom = rectWND.bottom - rectTB.bottom;
 690 }
 691
 692 static BOOL HH_AddHTMLPane(HHInfo *pHHInfo)
 693 {
 694     HWND hWnd;
 695     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 696     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE | WS_CLIPCHILDREN;
 697     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR | WS_EX_CLIENTEDGE;
 698     RECT rc;
 699
 700     HP_GetHTMLRect(pHHInfo, &rc);
 701
 702     hWnd = CreateWindowExW(dwExStyles, szChildClass, szEmpty, dwStyles,
 703                            rc.left, rc.top, rc.right, rc.bottom,
 704                            hwndParent, NULL, hhctrl_hinstance, NULL);
 705     if (!hWnd)
 706         return FALSE;
 707
 708     if (!InitWebBrowser(pHHInfo, hWnd))
 709         return FALSE;
 710
 711     /* store the pointer to the HH info struct */
 712     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)pHHInfo);
 713
 714     ShowWindow(hWnd, SW_SHOW);
 715     UpdateWindow(hWnd);
 716
 717     pHHInfo->WinType.hwndHTML = hWnd;
 718     return TRUE;
 719 }
 720
 721 static BOOL AddContentTab(HHInfo *info)
 722 {
 723     info->tabs[TAB_CONTENTS].hwnd = CreateWindowExW(WS_EX_CLIENTEDGE, WC_TREEVIEWW,
 724            szEmpty, WS_CHILD | WS_BORDER | 0x25, 50, 50, 100, 100,
 725            info->WinType.hwndNavigation, NULL, hhctrl_hinstance, NULL);
 726     if(!info->tabs[TAB_CONTENTS].hwnd) {
 727         ERR("Could not create treeview control\n");
 728         return FALSE;
 729     }
 730
 731     ResizeTabChild(info, info->tabs[TAB_CONTENTS].hwnd);
 732     ShowWindow(info->tabs[TAB_CONTENTS].hwnd, SW_SHOW);
 733
 734     return TRUE;
 735 }
 736
 737 /* Viewer Window */
 738
 739 static LRESULT Help_OnSize(HWND hWnd)
 740 {
 741     HHInfo *pHHInfo = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 742     DWORD dwSize;
 743     RECT rc;
 744
 745     if (!pHHInfo)
 746         return 0;
 747
 748     NP_GetNavigationRect(pHHInfo, &rc);
 749     SetWindowPos(pHHInfo->WinType.hwndNavigation, HWND_TOP, 0, 0,
 750                  rc.right, rc.bottom, SWP_NOMOVE);
 751
 752     SB_GetSizeBarRect(pHHInfo, &rc);
 753     SetWindowPos(pHHInfo->hwndSizeBar, HWND_TOP, rc.left, rc.top,
 754                  rc.right, rc.bottom, SWP_SHOWWINDOW);
 755
 756     HP_GetHTMLRect(pHHInfo, &rc);
 757     SetWindowPos(pHHInfo->WinType.hwndHTML, HWND_TOP, rc.left, rc.top,
 758                  rc.right, rc.bottom, SWP_SHOWWINDOW);
 759
 760     /* Resize browser window taking the frame size into account */
 761     dwSize = GetSystemMetrics(SM_CXFRAME);
 762     ResizeWebBrowser(pHHInfo, rc.right - dwSize, rc.bottom - dwSize);
 763
 764     return 0;
 765 }
 766
 767 static LRESULT CALLBACK Help_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 768 {
 769     switch (message)
 770     {
 771     case WM_COMMAND:
 772         if (HIWORD(wParam) == BN_CLICKED)
 773             TB_OnClick(hWnd, LOWORD(wParam));
 774         break;
 775     case WM_SIZE:
 776         return Help_OnSize(hWnd);
 777     case WM_CLOSE:
 778         ReleaseHelpViewer((HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA));
 779         return 0;
 780     case WM_DESTROY:
 781         if(hh_process)
 782             PostQuitMessage(0);
 783         break;
 784
 785     default:
 786         return DefWindowProcW(hWnd, message, wParam, lParam);
 787     }
 788
 789     return 0;
 790 }
 791
 792 static BOOL HH_CreateHelpWindow(HHInfo *info)
 793 {
 794     HWND hWnd;
 795     RECT winPos = info->WinType.rcWindowPos;
 796     WNDCLASSEXW wcex;
 797     DWORD dwStyles, dwExStyles;
 798     DWORD x, y, width, height;
 799
 800     static const WCHAR windowClassW[] = {
 801         'H','H',' ', 'P','a','r','e','n','t',0
 802     };
 803
 804     wcex.cbSize         = sizeof(WNDCLASSEXW);
 805     wcex.style          = CS_HREDRAW | CS_VREDRAW;
 806     wcex.lpfnWndProc    = Help_WndProc;
 807     wcex.cbClsExtra     = 0;
 808     wcex.cbWndExtra     = 0;
 809     wcex.hInstance      = hhctrl_hinstance;
 810     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 811     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
 812     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
 813     wcex.lpszMenuName   = NULL;
 814     wcex.lpszClassName  = windowClassW;
 815     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 816
 817     RegisterClassExW(&wcex);
 818
 819     /* Read in window parameters if available */
 820     if (info->WinType.fsValidMembers & HHWIN_PARAM_STYLES)
 821         dwStyles = info->WinType.dwStyles;
 822     else
 823         dwStyles = WS_OVERLAPPEDWINDOW | WS_VISIBLE |
 824                    WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
 825
 826     if (info->WinType.fsValidMembers & HHWIN_PARAM_EXSTYLES)
 827         dwExStyles = info->WinType.dwExStyles;
 828     else
 829         dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_APPWINDOW |
 830                      WS_EX_WINDOWEDGE | WS_EX_RIGHTSCROLLBAR;
 831
 832     if (info->WinType.fsValidMembers & HHWIN_PARAM_RECT)
 833     {
 834         x = winPos.left;
 835         y = winPos.top;
 836         width = winPos.right - x;
 837         height = winPos.bottom - y;
 838     }
 839     else
 840     {
 841         x = WINTYPE_DEFAULT_X;
 842         y = WINTYPE_DEFAULT_Y;
 843         width = WINTYPE_DEFAULT_WIDTH;
 844         height = WINTYPE_DEFAULT_HEIGHT;
 845     }
 846
 847     hWnd = CreateWindowExW(dwExStyles, windowClassW, info->WinType.pszCaption,
 848                            dwStyles, x, y, width, height, NULL, NULL, hhctrl_hinstance, NULL);
 849     if (!hWnd)
 850         return FALSE;
 851
 852     ShowWindow(hWnd, SW_SHOW);
 853     UpdateWindow(hWnd);
 854
 855     /* store the pointer to the HH info struct */
 856     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)info);
 857
 858     info->WinType.hwndHelp = hWnd;
 859     return TRUE;
 860 }
 861
 862 static void HH_CreateFont(HHInfo *pHHInfo)
 863 {
 864     LOGFONTW lf;
 865
 866     GetObjectW(GetStockObject(ANSI_VAR_FONT), sizeof(LOGFONTW), &lf);
 867     lf.lfWeight = FW_NORMAL;
 868     lf.lfItalic = FALSE;
 869     lf.lfUnderline = FALSE;
 870
 871     pHHInfo->hFont = CreateFontIndirectW(&lf);
 872 }
 873
 874 static void HH_InitRequiredControls(DWORD dwControls)
 875 {
 876     INITCOMMONCONTROLSEX icex;
 877
 878     icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
 879     icex.dwICC = dwControls;
 880     InitCommonControlsEx(&icex);
 881 }
 882
 883 /* Creates the whole package */
 884 static BOOL CreateViewer(HHInfo *pHHInfo)
 885 {
 886     HH_CreateFont(pHHInfo);
 887
 888     if (!HH_CreateHelpWindow(pHHInfo))
 889         return FALSE;
 890
 891     HH_InitRequiredControls(ICC_BAR_CLASSES);
 892
 893     if (!HH_AddToolbar(pHHInfo))
 894         return FALSE;
 895
 896     HH_RegisterChildWndClass(pHHInfo);
 897
 898     if (!HH_AddNavigationPane(pHHInfo))
 899         return FALSE;
 900
 901     HH_RegisterSizeBarClass(pHHInfo);
 902
 903     if (!HH_AddSizeBar(pHHInfo))
 904         return FALSE;
 905
 906     if (!HH_AddHTMLPane(pHHInfo))
 907         return FALSE;
 908
 909     if (!AddContentTab(pHHInfo))
 910         return FALSE;
 911
 912     InitContent(pHHInfo);
 913
 914     return TRUE;
 915 }
 916
 917 void ReleaseHelpViewer(HHInfo *info)
 918 {
 919     TRACE("(%p)\n", info);
 920
 921     if (!info)
 922         return;
 923
 924     /* Free allocated strings */
 925     heap_free(info->pszType);
 926     heap_free(info->pszCaption);
 927     heap_free(info->pszToc);
 928     heap_free(info->pszIndex);
 929     heap_free(info->pszFile);
 930     heap_free(info->pszHome);
 931     heap_free(info->pszJump1);
 932     heap_free(info->pszJump2);
 933     heap_free(info->pszUrlJump1);
 934     heap_free(info->pszUrlJump2);
 935
 936     if (info->pCHMInfo)
 937         CloseCHM(info->pCHMInfo);
 938
 939     ReleaseWebBrowser(info);
 940     ReleaseContent(info);
 941
 942     if(info->WinType.hwndHelp)
 943         DestroyWindow(info->WinType.hwndHelp);
 944
 945     heap_free(info);
 946     OleUninitialize();
 947 }
 948
 949 HHInfo *CreateHelpViewer(LPCWSTR filename)
 950 {
 951     HHInfo *info = heap_alloc_zero(sizeof(HHInfo));
 952
 953     OleInitialize(NULL);
 954
 955     info->pCHMInfo = OpenCHM(filename);
 956     if(!info->pCHMInfo) {
 957         ReleaseHelpViewer(info);
 958         return NULL;
 959     }
 960
 961     if (!LoadWinTypeFromCHM(info)) {
 962         ReleaseHelpViewer(info);
 963         return NULL;
 964     }
 965
 966     if(!CreateViewer(info)) {
 967         ReleaseHelpViewer(info);
 968         return NULL;
 969     }
 970
 971     return info;
 972 }