reactos/dll/win32/hhctrl.ocx/help.c

   1 /*
   2  * Help Viewer Implementation
   3  *
   4  * Copyright 2005 James Hawkins
   5  * Copyright 2007 Jacek Caban for CodeWeavers
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "hhctrl.h"
  23
  24 #include "wingdi.h"
  25 #include "commctrl.h"
  26 #include "wininet.h"
  27
  28 #include "wine/debug.h"
  29
  30 #include "resource.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(htmlhelp);
  33
  34 static LRESULT Help_OnSize(HWND hWnd);
  35
  36 /* Window type defaults */
  37
  38 #define WINTYPE_DEFAULT_X           280
  39 #define WINTYPE_DEFAULT_Y           100
  40 #define WINTYPE_DEFAULT_WIDTH       740
  41 #define WINTYPE_DEFAULT_HEIGHT      640
  42 #define WINTYPE_DEFAULT_NAVWIDTH    250
  43
  44 #define TAB_TOP_PADDING     8
  45 #define TAB_RIGHT_PADDING   4
  46 #define TAB_MARGIN  8
  47
  48 static const WCHAR szEmpty[] = {0};
  49
  50 /* Loads a string from the resource file */
  51 static LPWSTR HH_LoadString(DWORD dwID)
  52 {
  53     LPWSTR string = NULL;
  54     LPCWSTR stringresource;
  55     int iSize;
  56
  57     iSize = LoadStringW(hhctrl_hinstance, dwID, (LPWSTR)&stringresource, 0);
  58
  59     string = heap_alloc((iSize + 2) * sizeof(WCHAR)); /* some strings (tab text) needs double-null termination */
  60     memcpy(string, stringresource, iSize*sizeof(WCHAR));
  61     string[iSize] = 0;
  62
  63     return string;
  64 }
  65
  66 static HRESULT navigate_url(HHInfo *info, LPCWSTR surl)
  67 {
  68     VARIANT url;
  69     HRESULT hres;
  70
  71     TRACE("%s\n", debugstr_w(surl));
  72
  73     V_VT(&url) = VT_BSTR;
  74     V_BSTR(&url) = SysAllocString(surl);
  75
  76     hres = IWebBrowser2_Navigate2(info->web_browser, &url, 0, 0, 0, 0);
  77
  78     VariantClear(&url);
  79
  80     if(FAILED(hres))
  81         TRACE("Navigation failed: %08x\n", hres);
  82
  83     return hres;
  84 }
  85
  86 BOOL NavigateToUrl(HHInfo *info, LPCWSTR surl)
  87 {
  88     ChmPath chm_path;
  89     BOOL ret;
  90     HRESULT hres;
  91
  92     static const WCHAR url_indicator[] = {':', '/', '/', 0};
  93
  94     TRACE("%s\n", debugstr_w(surl));
  95
  96     if (strstrW(surl, url_indicator)) {
  97         hres = navigate_url(info, surl);
  98         if(SUCCEEDED(hres))
  99             return TRUE;
 100     } /* look up in chm if it doesn't look like a full url */
 101
 102     SetChmPath(&chm_path, info->pCHMInfo->szFile, surl);
 103     ret = NavigateToChm(info, chm_path.chm_file, chm_path.chm_index);
 104
 105     heap_free(chm_path.chm_file);
 106     heap_free(chm_path.chm_index);
 107
 108     return ret;
 109 }
 110
 111 BOOL NavigateToChm(HHInfo *info, LPCWSTR file, LPCWSTR index)
 112 {
 113     WCHAR buf[INTERNET_MAX_URL_LENGTH];
 114     WCHAR full_path[MAX_PATH];
 115     LPWSTR ptr;
 116
 117     static const WCHAR url_format[] =
 118         {'m','k',':','@','M','S','I','T','S','t','o','r','e',':','%','s',':',':','%','s','%','s',0};
 119     static const WCHAR slash[] = {'/',0};
 120     static const WCHAR empty[] = {0};
 121
 122     TRACE("%p %s %s\n", info, debugstr_w(file), debugstr_w(index));
 123
 124     if (!info->web_browser)
 125         return FALSE;
 126
 127     if(!GetFullPathNameW(file, sizeof(full_path)/sizeof(full_path[0]), full_path, NULL)) {
 128         WARN("GetFullPathName failed: %u\n", GetLastError());
 129         return FALSE;
 130     }
 131
 132     wsprintfW(buf, url_format, full_path, (!index || index[0] == '/') ? empty : slash, index);
 133
 134     /* FIXME: HACK */
 135     if((ptr = strchrW(buf, '#')))
 136        *ptr = 0;
 137
 138     return SUCCEEDED(navigate_url(info, buf));
 139 }
 140
 141 /* Size Bar */
 142
 143 #define SIZEBAR_WIDTH   4
 144
 145 static const WCHAR szSizeBarClass[] = {
 146     'H','H',' ','S','i','z','e','B','a','r',0
 147 };
 148
 149 /* Draw the SizeBar */
 150 static void SB_OnPaint(HWND hWnd)
 151 {
 152     PAINTSTRUCT ps;
 153     HDC hdc;
 154     RECT rc;
 155
 156     hdc = BeginPaint(hWnd, &ps);
 157
 158     GetClientRect(hWnd, &rc);
 159
 160     /* dark frame */
 161     rc.right += 1;
 162     rc.bottom -= 1;
 163     FrameRect(hdc, &rc, GetStockObject(GRAY_BRUSH));
 164
 165     /* white highlight */
 166     SelectObject(hdc, GetStockObject(WHITE_PEN));
 167     MoveToEx(hdc, rc.right, 1, NULL);
 168     LineTo(hdc, 1, 1);
 169     LineTo(hdc, 1, rc.bottom - 1);
 170
 171
 172     MoveToEx(hdc, 0, rc.bottom, NULL);
 173     LineTo(hdc, rc.right, rc.bottom);
 174
 175     EndPaint(hWnd, &ps);
 176 }
 177
 178 static void SB_OnLButtonDown(HWND hWnd, WPARAM wParam, LPARAM lParam)
 179 {
 180     SetCapture(hWnd);
 181 }
 182
 183 static void SB_OnLButtonUp(HWND hWnd, WPARAM wParam, LPARAM lParam)
 184 {
 185     HHInfo *pHHInfo = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 186     POINT pt;
 187
 188     pt.x = (short)LOWORD(lParam);
 189     pt.y = (short)HIWORD(lParam);
 190
 191     /* update the window sizes */
 192     pHHInfo->WinType.iNavWidth += pt.x;
 193     Help_OnSize(hWnd);
 194
 195     ReleaseCapture();
 196 }
 197
 198 static void SB_OnMouseMove(HWND hWnd, WPARAM wParam, LPARAM lParam)
 199 {
 200     /* ignore WM_MOUSEMOVE if not dragging the SizeBar */
 201     if (!(wParam & MK_LBUTTON))
 202         return;
 203 }
 204
 205 static LRESULT CALLBACK SizeBar_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 206 {
 207     switch (message)
 208     {
 209         case WM_LBUTTONDOWN:
 210             SB_OnLButtonDown(hWnd, wParam, lParam);
 211             break;
 212         case WM_LBUTTONUP:
 213             SB_OnLButtonUp(hWnd, wParam, lParam);
 214             break;
 215         case WM_MOUSEMOVE:
 216             SB_OnMouseMove(hWnd, wParam, lParam);
 217             break;
 218         case WM_PAINT:
 219             SB_OnPaint(hWnd);
 220             break;
 221         default:
 222             return DefWindowProcW(hWnd, message, wParam, lParam);
 223     }
 224
 225     return 0;
 226 }
 227
 228 static void HH_RegisterSizeBarClass(HHInfo *pHHInfo)
 229 {
 230     WNDCLASSEXW wcex;
 231
 232     wcex.cbSize         = sizeof(WNDCLASSEXW);
 233     wcex.style          = 0;
 234     wcex.lpfnWndProc    = SizeBar_WndProc;
 235     wcex.cbClsExtra     = 0;
 236     wcex.cbWndExtra     = 0;
 237     wcex.hInstance      = hhctrl_hinstance;
 238     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 239     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_SIZEWE);
 240     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
 241     wcex.lpszMenuName   = NULL;
 242     wcex.lpszClassName  = szSizeBarClass;
 243     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 244
 245     RegisterClassExW(&wcex);
 246 }
 247
 248 static void SB_GetSizeBarRect(HHInfo *info, RECT *rc)
 249 {
 250     RECT rectWND, rectTB, rectNP;
 251
 252     GetClientRect(info->WinType.hwndHelp, &rectWND);
 253     GetClientRect(info->WinType.hwndToolBar, &rectTB);
 254     GetClientRect(info->WinType.hwndNavigation, &rectNP);
 255
 256     rc->left = rectNP.right;
 257     rc->top = rectTB.bottom;
 258     rc->bottom = rectWND.bottom - rectTB.bottom;
 259     rc->right = SIZEBAR_WIDTH;
 260 }
 261
 262 static BOOL HH_AddSizeBar(HHInfo *pHHInfo)
 263 {
 264     HWND hWnd;
 265     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 266     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE | WS_OVERLAPPED;
 267     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 268     RECT rc;
 269
 270     SB_GetSizeBarRect(pHHInfo, &rc);
 271
 272     hWnd = CreateWindowExW(dwExStyles, szSizeBarClass, szEmpty, dwStyles,
 273                            rc.left, rc.top, rc.right, rc.bottom,
 274                            hwndParent, NULL, hhctrl_hinstance, NULL);
 275     if (!hWnd)
 276         return FALSE;
 277
 278     /* store the pointer to the HH info struct */
 279     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)pHHInfo);
 280
 281     pHHInfo->hwndSizeBar = hWnd;
 282     return TRUE;
 283 }
 284
 285 /* Child Window */
 286
 287 static const WCHAR szChildClass[] = {
 288     'H','H',' ','C','h','i','l','d',0
 289 };
 290
 291 static LRESULT Child_OnPaint(HWND hWnd)
 292 {
 293     PAINTSTRUCT ps;
 294     HDC hdc;
 295     RECT rc;
 296
 297     hdc = BeginPaint(hWnd, &ps);
 298
 299     /* Only paint the Navigation pane, identified by the fact
 300      * that it has a child window
 301      */
 302     if (GetWindow(hWnd, GW_CHILD))
 303     {
 304         GetClientRect(hWnd, &rc);
 305
 306         /* set the border color */
 307         SelectObject(hdc, GetStockObject(DC_PEN));
 308         SetDCPenColor(hdc, GetSysColor(COLOR_BTNSHADOW));
 309
 310         /* Draw the top border */
 311         LineTo(hdc, rc.right, 0);
 312
 313         SelectObject(hdc, GetStockObject(WHITE_PEN));
 314         MoveToEx(hdc, 0, 1, NULL);
 315         LineTo(hdc, rc.right, 1);
 316     }
 317
 318     EndPaint(hWnd, &ps);
 319
 320     return 0;
 321 }
 322
 323 static void ResizeTabChild(HHInfo *info, HWND hwnd)
 324 {
 325     RECT rect, tabrc;
 326     DWORD cnt;
 327
 328     GetClientRect(info->WinType.hwndNavigation, &rect);
 329     SendMessageW(info->hwndTabCtrl, TCM_GETITEMRECT, 0, (LPARAM)&tabrc);
 330     cnt = SendMessageW(info->hwndTabCtrl, TCM_GETROWCOUNT, 0, 0);
 331
 332     rect.left = TAB_MARGIN;
 333     rect.top = TAB_TOP_PADDING + cnt*(tabrc.bottom-tabrc.top) + TAB_MARGIN;
 334     rect.right -= TAB_RIGHT_PADDING + TAB_MARGIN;
 335     rect.bottom -= TAB_MARGIN;
 336
 337     SetWindowPos(hwnd, NULL, rect.left, rect.top, rect.right-rect.left,
 338                  rect.bottom-rect.top, SWP_NOZORDER | SWP_NOACTIVATE);
 339 }
 340
 341 static LRESULT Child_OnSize(HWND hwnd)
 342 {
 343     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 344     RECT rect;
 345
 346     if(!info || hwnd != info->WinType.hwndNavigation)
 347         return 0;
 348
 349     GetClientRect(hwnd, &rect);
 350     SetWindowPos(info->hwndTabCtrl, HWND_TOP, 0, 0,
 351                  rect.right - TAB_RIGHT_PADDING,
 352                  rect.bottom - TAB_TOP_PADDING, SWP_NOMOVE);
 353
 354     ResizeTabChild(info, info->tabs[TAB_CONTENTS].hwnd);
 355     return 0;
 356 }
 357
 358 static LRESULT OnTabChange(HWND hwnd)
 359 {
 360     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 361
 362     TRACE("%p\n", hwnd);
 363
 364     if (!info)
 365         return 0;
 366
 367     if(info->tabs[info->current_tab].hwnd)
 368         ShowWindow(info->tabs[info->current_tab].hwnd, SW_HIDE);
 369
 370     info->current_tab = SendMessageW(info->hwndTabCtrl, TCM_GETCURSEL, 0, 0);
 371
 372     if(info->tabs[info->current_tab].hwnd)
 373         ShowWindow(info->tabs[info->current_tab].hwnd, SW_SHOW);
 374
 375     return 0;
 376 }
 377
 378 static LRESULT OnTopicChange(HWND hwnd, ContentItem *item)
 379 {
 380     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 381     LPCWSTR chmfile = NULL;
 382     ContentItem *iter = item;
 383
 384     if(!item || !info)
 385         return 0;
 386
 387     TRACE("name %s loal %s\n", debugstr_w(item->name), debugstr_w(item->local));
 388
 389     while(iter) {
 390         if(iter->merge.chm_file) {
 391             chmfile = iter->merge.chm_file;
 392             break;
 393         }
 394         iter = iter->parent;
 395     }
 396
 397     NavigateToChm(info, chmfile, item->local);
 398     return 0;
 399 }
 400
 401 static LRESULT CALLBACK Child_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 402 {
 403     switch (message)
 404     {
 405     case WM_PAINT:
 406         return Child_OnPaint(hWnd);
 407     case WM_SIZE:
 408         return Child_OnSize(hWnd);
 409     case WM_NOTIFY: {
 410         NMHDR *nmhdr = (NMHDR*)lParam;
 411         switch(nmhdr->code) {
 412         case TCN_SELCHANGE:
 413             return OnTabChange(hWnd);
 414         case TVN_SELCHANGEDW:
 415             return OnTopicChange(hWnd, (ContentItem*)((NMTREEVIEWW *)lParam)->itemNew.lParam);
 416         }
 417         break;
 418     }
 419     default:
 420         return DefWindowProcW(hWnd, message, wParam, lParam);
 421     }
 422
 423     return 0;
 424 }
 425
 426 static void HH_RegisterChildWndClass(HHInfo *pHHInfo)
 427 {
 428     WNDCLASSEXW wcex;
 429
 430     wcex.cbSize         = sizeof(WNDCLASSEXW);
 431     wcex.style          = 0;
 432     wcex.lpfnWndProc    = Child_WndProc;
 433     wcex.cbClsExtra     = 0;
 434     wcex.cbWndExtra     = 0;
 435     wcex.hInstance      = hhctrl_hinstance;
 436     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 437     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
 438     wcex.hbrBackground  = (HBRUSH)(COLOR_BTNFACE + 1);
 439     wcex.lpszMenuName   = NULL;
 440     wcex.lpszClassName  = szChildClass;
 441     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 442
 443     RegisterClassExW(&wcex);
 444 }
 445
 446 /* Toolbar */
 447
 448 #define ICON_SIZE   20
 449
 450 static void TB_OnClick(HWND hWnd, DWORD dwID)
 451 {
 452     HHInfo *info = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 453
 454     switch (dwID)
 455     {
 456         case IDTB_STOP:
 457             DoPageAction(info, WB_STOP);
 458             break;
 459         case IDTB_REFRESH:
 460             DoPageAction(info, WB_REFRESH);
 461             break;
 462         case IDTB_BACK:
 463             DoPageAction(info, WB_GOBACK);
 464             break;
 465         case IDTB_HOME:
 466             NavigateToChm(info, info->pCHMInfo->szFile, info->WinType.pszHome);
 467             break;
 468         case IDTB_FORWARD:
 469             DoPageAction(info, WB_GOFORWARD);
 470             break;
 471         case IDTB_EXPAND:
 472         case IDTB_CONTRACT:
 473         case IDTB_SYNC:
 474         case IDTB_PRINT:
 475         case IDTB_OPTIONS:
 476         case IDTB_BROWSE_FWD:
 477         case IDTB_BROWSE_BACK:
 478         case IDTB_JUMP1:
 479         case IDTB_JUMP2:
 480         case IDTB_CUSTOMIZE:
 481         case IDTB_ZOOM:
 482         case IDTB_TOC_NEXT:
 483         case IDTB_TOC_PREV:
 484             break;
 485     }
 486 }
 487
 488 static void TB_AddButton(TBBUTTON *pButtons, DWORD dwIndex, DWORD dwID)
 489 {
 490     /* FIXME: Load the correct button bitmaps */
 491     pButtons[dwIndex].iBitmap = STD_PRINT;
 492     pButtons[dwIndex].idCommand = dwID;
 493     pButtons[dwIndex].fsState = TBSTATE_ENABLED;
 494     pButtons[dwIndex].fsStyle = BTNS_BUTTON;
 495     pButtons[dwIndex].dwData = 0;
 496     pButtons[dwIndex].iString = 0;
 497 }
 498
 499 static void TB_AddButtonsFromFlags(TBBUTTON *pButtons, DWORD dwButtonFlags, LPDWORD pdwNumButtons)
 500 {
 501     *pdwNumButtons = 0;
 502
 503     if (dwButtonFlags & HHWIN_BUTTON_EXPAND)
 504         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_EXPAND);
 505
 506     if (dwButtonFlags & HHWIN_BUTTON_BACK)
 507         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_BACK);
 508
 509     if (dwButtonFlags & HHWIN_BUTTON_FORWARD)
 510         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_FORWARD);
 511
 512     if (dwButtonFlags & HHWIN_BUTTON_STOP)
 513         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_STOP);
 514
 515     if (dwButtonFlags & HHWIN_BUTTON_REFRESH)
 516         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_REFRESH);
 517
 518     if (dwButtonFlags & HHWIN_BUTTON_HOME)
 519         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_HOME);
 520
 521     if (dwButtonFlags & HHWIN_BUTTON_SYNC)
 522         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_SYNC);
 523
 524     if (dwButtonFlags & HHWIN_BUTTON_OPTIONS)
 525         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_OPTIONS);
 526
 527     if (dwButtonFlags & HHWIN_BUTTON_PRINT)
 528         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_PRINT);
 529
 530     if (dwButtonFlags & HHWIN_BUTTON_JUMP1)
 531         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_JUMP1);
 532
 533     if (dwButtonFlags & HHWIN_BUTTON_JUMP2)
 534         TB_AddButton(pButtons,(*pdwNumButtons)++, IDTB_JUMP2);
 535
 536     if (dwButtonFlags & HHWIN_BUTTON_ZOOM)
 537         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_ZOOM);
 538
 539     if (dwButtonFlags & HHWIN_BUTTON_TOC_NEXT)
 540         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_TOC_NEXT);
 541
 542     if (dwButtonFlags & HHWIN_BUTTON_TOC_PREV)
 543         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_TOC_PREV);
 544 }
 545
 546 static BOOL HH_AddToolbar(HHInfo *pHHInfo)
 547 {
 548     HWND hToolbar;
 549     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 550     DWORD toolbarFlags;
 551     TBBUTTON buttons[IDTB_TOC_PREV - IDTB_EXPAND];
 552     TBADDBITMAP tbAB;
 553     DWORD dwStyles, dwExStyles;
 554     DWORD dwNumButtons, dwIndex;
 555
 556     if (pHHInfo->WinType.fsWinProperties & HHWIN_PARAM_TB_FLAGS)
 557         toolbarFlags = pHHInfo->WinType.fsToolBarFlags;
 558     else
 559         toolbarFlags = HHWIN_DEF_BUTTONS;
 560
 561     TB_AddButtonsFromFlags(buttons, toolbarFlags, &dwNumButtons);
 562
 563     dwStyles = WS_CHILDWINDOW | WS_VISIBLE | TBSTYLE_FLAT |
 564                TBSTYLE_WRAPABLE | TBSTYLE_TOOLTIPS | CCS_NODIVIDER;
 565     dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 566
 567     hToolbar = CreateWindowExW(dwExStyles, TOOLBARCLASSNAMEW, NULL, dwStyles,
 568                                0, 0, 0, 0, hwndParent, NULL,
 569                                hhctrl_hinstance, NULL);
 570     if (!hToolbar)
 571         return FALSE;
 572
 573     SendMessageW(hToolbar, TB_SETBITMAPSIZE, 0, MAKELONG(ICON_SIZE, ICON_SIZE));
 574     SendMessageW(hToolbar, TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);
 575     SendMessageW(hToolbar, WM_SETFONT, (WPARAM)pHHInfo->hFont, TRUE);
 576
 577     /* FIXME: Load correct icons for all buttons */
 578     tbAB.hInst = HINST_COMMCTRL;
 579     tbAB.nID = IDB_STD_LARGE_COLOR;
 580     SendMessageW(hToolbar, TB_ADDBITMAP, 0, (LPARAM)&tbAB);
 581
 582     for (dwIndex = 0; dwIndex < dwNumButtons; dwIndex++)
 583     {
 584         LPWSTR szBuf = HH_LoadString(buttons[dwIndex].idCommand);
 585         DWORD dwLen = strlenW(szBuf);
 586         szBuf[dwLen + 1] = 0; /* Double-null terminate */
 587
 588         buttons[dwIndex].iString = (DWORD)SendMessageW(hToolbar, TB_ADDSTRINGW, 0, (LPARAM)szBuf);
 589         heap_free(szBuf);
 590     }
 591
 592     SendMessageW(hToolbar, TB_ADDBUTTONSW, dwNumButtons, (LPARAM)buttons);
 593     SendMessageW(hToolbar, TB_AUTOSIZE, 0, 0);
 594     ShowWindow(hToolbar, SW_SHOW);
 595
 596     pHHInfo->WinType.hwndToolBar = hToolbar;
 597     return TRUE;
 598 }
 599
 600 /* Navigation Pane */
 601
 602 static void NP_GetNavigationRect(HHInfo *pHHInfo, RECT *rc)
 603 {
 604     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 605     HWND hwndToolbar = pHHInfo->WinType.hwndToolBar;
 606     RECT rectWND, rectTB;
 607
 608     GetClientRect(hwndParent, &rectWND);
 609     GetClientRect(hwndToolbar, &rectTB);
 610
 611     rc->left = 0;
 612     rc->top = rectTB.bottom;
 613     rc->bottom = rectWND.bottom - rectTB.bottom;
 614
 615     if (!(pHHInfo->WinType.fsValidMembers & HHWIN_PARAM_NAV_WIDTH) &&
 616           pHHInfo->WinType.iNavWidth == 0)
 617     {
 618         pHHInfo->WinType.iNavWidth = WINTYPE_DEFAULT_NAVWIDTH;
 619     }
 620
 621     rc->right = pHHInfo->WinType.iNavWidth;
 622 }
 623
 624 static DWORD NP_CreateTab(HINSTANCE hInstance, HWND hwndTabCtrl, DWORD index)
 625 {
 626     TCITEMW tie;
 627     LPWSTR tabText = HH_LoadString(index);
 628     DWORD ret;
 629
 630     tie.mask = TCIF_TEXT;
 631     tie.pszText = tabText;
 632
 633     ret = SendMessageW( hwndTabCtrl, TCM_INSERTITEMW, index, (LPARAM)&tie );
 634
 635     heap_free(tabText);
 636     return ret;
 637 }
 638
 639 static BOOL HH_AddNavigationPane(HHInfo *info)
 640 {
 641     HWND hWnd, hwndTabCtrl;
 642     HWND hwndParent = info->WinType.hwndHelp;
 643     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE;
 644     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 645     RECT rc;
 646
 647     NP_GetNavigationRect(info, &rc);
 648
 649     hWnd = CreateWindowExW(dwExStyles, szChildClass, szEmpty, dwStyles,
 650                            rc.left, rc.top, rc.right, rc.bottom,
 651                            hwndParent, NULL, hhctrl_hinstance, NULL);
 652     if (!hWnd)
 653         return FALSE;
 654
 655     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)info);
 656
 657     hwndTabCtrl = CreateWindowExW(dwExStyles, WC_TABCONTROLW, szEmpty, dwStyles,
 658                                   0, TAB_TOP_PADDING,
 659                                   rc.right - TAB_RIGHT_PADDING,
 660                                   rc.bottom - TAB_TOP_PADDING,
 661                                   hWnd, NULL, hhctrl_hinstance, NULL);
 662     if (!hwndTabCtrl)
 663         return FALSE;
 664
 665     if (*info->WinType.pszToc)
 666         info->tabs[TAB_CONTENTS].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_CONTENTS);
 667
 668     if (*info->WinType.pszIndex)
 669         info->tabs[TAB_INDEX].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_INDEX);
 670
 671     if (info->WinType.fsWinProperties & HHWIN_PROP_TAB_SEARCH)
 672         info->tabs[TAB_SEARCH].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_SEARCH);
 673
 674     if (info->WinType.fsWinProperties & HHWIN_PROP_TAB_FAVORITES)
 675         info->tabs[TAB_FAVORITES].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_FAVORITES);
 676
 677     SendMessageW(hwndTabCtrl, WM_SETFONT, (WPARAM)info->hFont, TRUE);
 678
 679     info->hwndTabCtrl = hwndTabCtrl;
 680     info->WinType.hwndNavigation = hWnd;
 681     return TRUE;
 682 }
 683
 684 /* HTML Pane */
 685
 686 static void HP_GetHTMLRect(HHInfo *info, RECT *rc)
 687 {
 688     RECT rectTB, rectWND, rectNP, rectSB;
 689
 690     GetClientRect(info->WinType.hwndHelp, &rectWND);
 691     GetClientRect(info->WinType.hwndToolBar, &rectTB);
 692     GetClientRect(info->WinType.hwndNavigation, &rectNP);
 693     GetClientRect(info->hwndSizeBar, &rectSB);
 694
 695     rc->left = rectNP.right + rectSB.right;
 696     rc->top = rectTB.bottom;
 697     rc->right = rectWND.right - rc->left;
 698     rc->bottom = rectWND.bottom - rectTB.bottom;
 699 }
 700
 701 static BOOL HH_AddHTMLPane(HHInfo *pHHInfo)
 702 {
 703     HWND hWnd;
 704     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 705     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE | WS_CLIPCHILDREN;
 706     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR | WS_EX_CLIENTEDGE;
 707     RECT rc;
 708
 709     HP_GetHTMLRect(pHHInfo, &rc);
 710
 711     hWnd = CreateWindowExW(dwExStyles, szChildClass, szEmpty, dwStyles,
 712                            rc.left, rc.top, rc.right, rc.bottom,
 713                            hwndParent, NULL, hhctrl_hinstance, NULL);
 714     if (!hWnd)
 715         return FALSE;
 716
 717     if (!InitWebBrowser(pHHInfo, hWnd))
 718         return FALSE;
 719
 720     /* store the pointer to the HH info struct */
 721     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)pHHInfo);
 722
 723     ShowWindow(hWnd, SW_SHOW);
 724     UpdateWindow(hWnd);
 725
 726     pHHInfo->WinType.hwndHTML = hWnd;
 727     return TRUE;
 728 }
 729
 730 static BOOL AddContentTab(HHInfo *info)
 731 {
 732     info->tabs[TAB_CONTENTS].hwnd = CreateWindowExW(WS_EX_CLIENTEDGE, WC_TREEVIEWW,
 733            szEmpty, WS_CHILD | WS_BORDER | 0x25, 50, 50, 100, 100,
 734            info->WinType.hwndNavigation, NULL, hhctrl_hinstance, NULL);
 735     if(!info->tabs[TAB_CONTENTS].hwnd) {
 736         ERR("Could not create treeview control\n");
 737         return FALSE;
 738     }
 739
 740     ResizeTabChild(info, info->tabs[TAB_CONTENTS].hwnd);
 741     ShowWindow(info->tabs[TAB_CONTENTS].hwnd, SW_SHOW);
 742
 743     return TRUE;
 744 }
 745
 746 /* Viewer Window */
 747
 748 static LRESULT Help_OnSize(HWND hWnd)
 749 {
 750     HHInfo *pHHInfo = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 751     DWORD dwSize;
 752     RECT rc;
 753
 754     if (!pHHInfo)
 755         return 0;
 756
 757     NP_GetNavigationRect(pHHInfo, &rc);
 758     SetWindowPos(pHHInfo->WinType.hwndNavigation, HWND_TOP, 0, 0,
 759                  rc.right, rc.bottom, SWP_NOMOVE);
 760
 761     SB_GetSizeBarRect(pHHInfo, &rc);
 762     SetWindowPos(pHHInfo->hwndSizeBar, HWND_TOP, rc.left, rc.top,
 763                  rc.right, rc.bottom, SWP_SHOWWINDOW);
 764
 765     HP_GetHTMLRect(pHHInfo, &rc);
 766     SetWindowPos(pHHInfo->WinType.hwndHTML, HWND_TOP, rc.left, rc.top,
 767                  rc.right, rc.bottom, SWP_SHOWWINDOW);
 768
 769     /* Resize browser window taking the frame size into account */
 770     dwSize = GetSystemMetrics(SM_CXFRAME);
 771     ResizeWebBrowser(pHHInfo, rc.right - dwSize, rc.bottom - dwSize);
 772
 773     return 0;
 774 }
 775
 776 static LRESULT CALLBACK Help_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 777 {
 778     switch (message)
 779     {
 780     case WM_COMMAND:
 781         if (HIWORD(wParam) == BN_CLICKED)
 782             TB_OnClick(hWnd, LOWORD(wParam));
 783         break;
 784     case WM_SIZE:
 785         return Help_OnSize(hWnd);
 786     case WM_CLOSE:
 787         ReleaseHelpViewer((HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA));
 788         return 0;
 789     case WM_DESTROY:
 790         if(hh_process)
 791             PostQuitMessage(0);
 792         break;
 793
 794     default:
 795         return DefWindowProcW(hWnd, message, wParam, lParam);
 796     }
 797
 798     return 0;
 799 }
 800
 801 static BOOL HH_CreateHelpWindow(HHInfo *info)
 802 {
 803     HWND hWnd;
 804     RECT winPos = info->WinType.rcWindowPos;
 805     WNDCLASSEXW wcex;
 806     DWORD dwStyles, dwExStyles;
 807     DWORD x, y, width, height;
 808
 809     static const WCHAR windowClassW[] = {
 810         'H','H',' ', 'P','a','r','e','n','t',0
 811     };
 812
 813     wcex.cbSize         = sizeof(WNDCLASSEXW);
 814     wcex.style          = CS_HREDRAW | CS_VREDRAW;
 815     wcex.lpfnWndProc    = Help_WndProc;
 816     wcex.cbClsExtra     = 0;
 817     wcex.cbWndExtra     = 0;
 818     wcex.hInstance      = hhctrl_hinstance;
 819     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 820     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
 821     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
 822     wcex.lpszMenuName   = NULL;
 823     wcex.lpszClassName  = windowClassW;
 824     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 825
 826     RegisterClassExW(&wcex);
 827
 828     /* Read in window parameters if available */
 829     if (info->WinType.fsValidMembers & HHWIN_PARAM_STYLES)
 830         dwStyles = info->WinType.dwStyles | WS_OVERLAPPEDWINDOW;
 831     else
 832         dwStyles = WS_OVERLAPPEDWINDOW | WS_VISIBLE |
 833                    WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
 834
 835     if (info->WinType.fsValidMembers & HHWIN_PARAM_EXSTYLES)
 836         dwExStyles = info->WinType.dwExStyles;
 837     else
 838         dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_APPWINDOW |
 839                      WS_EX_WINDOWEDGE | WS_EX_RIGHTSCROLLBAR;
 840
 841     if (info->WinType.fsValidMembers & HHWIN_PARAM_RECT)
 842     {
 843         x = winPos.left;
 844         y = winPos.top;
 845         width = winPos.right - x;
 846         height = winPos.bottom - y;
 847     }
 848     else
 849     {
 850         x = WINTYPE_DEFAULT_X;
 851         y = WINTYPE_DEFAULT_Y;
 852         width = WINTYPE_DEFAULT_WIDTH;
 853         height = WINTYPE_DEFAULT_HEIGHT;
 854     }
 855
 856     hWnd = CreateWindowExW(dwExStyles, windowClassW, info->WinType.pszCaption,
 857                            dwStyles, x, y, width, height, NULL, NULL, hhctrl_hinstance, NULL);
 858     if (!hWnd)
 859         return FALSE;
 860
 861     ShowWindow(hWnd, SW_SHOW);
 862     UpdateWindow(hWnd);
 863
 864     /* store the pointer to the HH info struct */
 865     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)info);
 866
 867     info->WinType.hwndHelp = hWnd;
 868     return TRUE;
 869 }
 870
 871 static void HH_CreateFont(HHInfo *pHHInfo)
 872 {
 873     LOGFONTW lf;
 874
 875     GetObjectW(GetStockObject(ANSI_VAR_FONT), sizeof(LOGFONTW), &lf);
 876     lf.lfWeight = FW_NORMAL;
 877     lf.lfItalic = FALSE;
 878     lf.lfUnderline = FALSE;
 879
 880     pHHInfo->hFont = CreateFontIndirectW(&lf);
 881 }
 882
 883 static void HH_InitRequiredControls(DWORD dwControls)
 884 {
 885     INITCOMMONCONTROLSEX icex;
 886
 887     icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
 888     icex.dwICC = dwControls;
 889     InitCommonControlsEx(&icex);
 890 }
 891
 892 /* Creates the whole package */
 893 static BOOL CreateViewer(HHInfo *pHHInfo)
 894 {
 895     HH_CreateFont(pHHInfo);
 896
 897     if (!HH_CreateHelpWindow(pHHInfo))
 898         return FALSE;
 899
 900     HH_InitRequiredControls(ICC_BAR_CLASSES);
 901
 902     if (!HH_AddToolbar(pHHInfo))
 903         return FALSE;
 904
 905     HH_RegisterChildWndClass(pHHInfo);
 906
 907     if (!HH_AddNavigationPane(pHHInfo))
 908         return FALSE;
 909
 910     HH_RegisterSizeBarClass(pHHInfo);
 911
 912     if (!HH_AddSizeBar(pHHInfo))
 913         return FALSE;
 914
 915     if (!HH_AddHTMLPane(pHHInfo))
 916         return FALSE;
 917
 918     if (!AddContentTab(pHHInfo))
 919         return FALSE;
 920
 921     InitContent(pHHInfo);
 922
 923     return TRUE;
 924 }
 925
 926 void ReleaseHelpViewer(HHInfo *info)
 927 {
 928     TRACE("(%p)\n", info);
 929
 930     if (!info)
 931         return;
 932
 933     /* Free allocated strings */
 934     heap_free(info->pszType);
 935     heap_free(info->pszCaption);
 936     heap_free(info->pszToc);
 937     heap_free(info->pszIndex);
 938     heap_free(info->pszFile);
 939     heap_free(info->pszHome);
 940     heap_free(info->pszJump1);
 941     heap_free(info->pszJump2);
 942     heap_free(info->pszUrlJump1);
 943     heap_free(info->pszUrlJump2);
 944
 945     if (info->pCHMInfo)
 946         CloseCHM(info->pCHMInfo);
 947
 948     ReleaseWebBrowser(info);
 949     ReleaseContent(info);
 950
 951     if(info->WinType.hwndHelp)
 952         DestroyWindow(info->WinType.hwndHelp);
 953
 954     heap_free(info);
 955     OleUninitialize();
 956 }
 957
 958 HHInfo *CreateHelpViewer(LPCWSTR filename)
 959 {
 960     HHInfo *info = heap_alloc_zero(sizeof(HHInfo));
 961
 962     OleInitialize(NULL);
 963
 964     info->pCHMInfo = OpenCHM(filename);
 965     if(!info->pCHMInfo) {
 966         ReleaseHelpViewer(info);
 967         return NULL;
 968     }
 969
 970     if (!LoadWinTypeFromCHM(info)) {
 971         ReleaseHelpViewer(info);
 972         return NULL;
 973     }
 974
 975     if(!CreateViewer(info)) {
 976         ReleaseHelpViewer(info);
 977         return NULL;
 978     }
 979
 980     return info;
 981 }