dlls/hhctrl.ocx/help.c

   1 /*
   2  * Help Viewer Implementation
   3  *
   4  * Copyright 2005 James Hawkins
   5  * Copyright 2007 Jacek Caban for CodeWeavers
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "hhctrl.h"
  23
  24 #include "wingdi.h"
  25 #include "commctrl.h"
  26 #include "wininet.h"
  27
  28 #include "wine/debug.h"
  29
  30 #include "resource.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(htmlhelp);
  33
  34 static LRESULT Help_OnSize(HWND hWnd);
  35
  36 /* Window type defaults */
  37
  38 #define WINTYPE_DEFAULT_X           280
  39 #define WINTYPE_DEFAULT_Y           100
  40 #define WINTYPE_DEFAULT_WIDTH       740
  41 #define WINTYPE_DEFAULT_HEIGHT      640
  42 #define WINTYPE_DEFAULT_NAVWIDTH    250
  43
  44 #define TAB_TOP_PADDING     8
  45 #define TAB_RIGHT_PADDING   4
  46 #define TAB_MARGIN  8
  47
  48 static const WCHAR szEmpty[] = {0};
  49
  50 /* Loads a string from the resource file */
  51 static LPWSTR HH_LoadString(DWORD dwID)
  52 {
  53     LPWSTR string = NULL;
  54     LPCWSTR stringresource;
  55     int iSize;
  56
  57     iSize = LoadStringW(hhctrl_hinstance, dwID, (LPWSTR)&stringresource, 0);
  58
  59     string = heap_alloc((iSize + 2) * sizeof(WCHAR)); /* some strings (tab text) needs double-null termination */
  60     memcpy(string, stringresource, iSize*sizeof(WCHAR));
  61     string[iSize] = 0;
  62
  63     return string;
  64 }
  65
  66 static HRESULT navigate_url(HHInfo *info, LPCWSTR surl)
  67 {
  68     VARIANT url;
  69     HRESULT hres;
  70
  71     TRACE("%s\n", debugstr_w(surl));
  72
  73     V_VT(&url) = VT_BSTR;
  74     V_BSTR(&url) = SysAllocString(surl);
  75
  76     hres = IWebBrowser2_Navigate2(info->web_browser, &url, 0, 0, 0, 0);
  77
  78     VariantClear(&url);
  79
  80     if(FAILED(hres))
  81         TRACE("Navigation failed: %08x\n", hres);
  82
  83     return hres;
  84 }
  85
  86 BOOL NavigateToUrl(HHInfo *info, LPCWSTR surl)
  87 {
  88     ChmPath chm_path;
  89     BOOL ret;
  90     HRESULT hres;
  91
  92     static const WCHAR url_indicator[] = {':', '/', '/', 0};
  93
  94     TRACE("%s\n", debugstr_w(surl));
  95
  96     if (strstrW(surl, url_indicator)) {
  97         hres = navigate_url(info, surl);
  98         if(SUCCEEDED(hres))
  99             return TRUE;
 100     } /* look up in chm if it doesn't look like a full url */
 101
 102     SetChmPath(&chm_path, info->pCHMInfo->szFile, surl);
 103     ret = NavigateToChm(info, chm_path.chm_file, chm_path.chm_index);
 104
 105     heap_free(chm_path.chm_file);
 106     heap_free(chm_path.chm_index);
 107
 108     return ret;
 109 }
 110
 111 BOOL NavigateToChm(HHInfo *info, LPCWSTR file, LPCWSTR index)
 112 {
 113     WCHAR buf[INTERNET_MAX_URL_LENGTH];
 114     WCHAR full_path[MAX_PATH];
 115     LPWSTR ptr;
 116
 117     static const WCHAR url_format[] =
 118         {'m','k',':','@','M','S','I','T','S','t','o','r','e',':','%','s',':',':','%','s','%','s',0};
 119     static const WCHAR slash[] = {'/',0};
 120     static const WCHAR empty[] = {0};
 121
 122     TRACE("%p %s %s\n", info, debugstr_w(file), debugstr_w(index));
 123
 124     if (!info->web_browser)
 125         return FALSE;
 126
 127     if(!GetFullPathNameW(file, sizeof(full_path)/sizeof(full_path[0]), full_path, NULL)) {
 128         WARN("GetFullPathName failed: %u\n", GetLastError());
 129         return FALSE;
 130     }
 131
 132     wsprintfW(buf, url_format, full_path, (!index || index[0] == '/') ? empty : slash, index);
 133
 134     /* FIXME: HACK */
 135     if((ptr = strchrW(buf, '#')))
 136        *ptr = 0;
 137
 138     return SUCCEEDED(navigate_url(info, buf));
 139 }
 140
 141 /* Size Bar */
 142
 143 #define SIZEBAR_WIDTH   4
 144
 145 static const WCHAR szSizeBarClass[] = {
 146     'H','H',' ','S','i','z','e','B','a','r',0
 147 };
 148
 149 /* Draw the SizeBar */
 150 static void SB_OnPaint(HWND hWnd)
 151 {
 152     PAINTSTRUCT ps;
 153     HDC hdc;
 154     RECT rc;
 155
 156     hdc = BeginPaint(hWnd, &ps);
 157
 158     GetClientRect(hWnd, &rc);
 159
 160     /* dark frame */
 161     rc.right += 1;
 162     rc.bottom -= 1;
 163     FrameRect(hdc, &rc, GetStockObject(GRAY_BRUSH));
 164
 165     /* white highlight */
 166     SelectObject(hdc, GetStockObject(WHITE_PEN));
 167     MoveToEx(hdc, rc.right, 1, NULL);
 168     LineTo(hdc, 1, 1);
 169     LineTo(hdc, 1, rc.bottom - 1);
 170
 171
 172     MoveToEx(hdc, 0, rc.bottom, NULL);
 173     LineTo(hdc, rc.right, rc.bottom);
 174
 175     EndPaint(hWnd, &ps);
 176 }
 177
 178 static void SB_OnLButtonDown(HWND hWnd, WPARAM wParam, LPARAM lParam)
 179 {
 180     SetCapture(hWnd);
 181 }
 182
 183 static void SB_OnLButtonUp(HWND hWnd, WPARAM wParam, LPARAM lParam)
 184 {
 185     HHInfo *pHHInfo = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 186     POINT pt;
 187
 188     pt.x = (short)LOWORD(lParam);
 189     pt.y = (short)HIWORD(lParam);
 190
 191     /* update the window sizes */
 192     pHHInfo->WinType.iNavWidth += pt.x;
 193     Help_OnSize(hWnd);
 194
 195     ReleaseCapture();
 196 }
 197
 198 static void SB_OnMouseMove(HWND hWnd, WPARAM wParam, LPARAM lParam)
 199 {
 200     /* ignore WM_MOUSEMOVE if not dragging the SizeBar */
 201     if (!(wParam & MK_LBUTTON))
 202         return;
 203 }
 204
 205 static LRESULT CALLBACK SizeBar_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 206 {
 207     switch (message)
 208     {
 209         case WM_LBUTTONDOWN:
 210             SB_OnLButtonDown(hWnd, wParam, lParam);
 211             break;
 212         case WM_LBUTTONUP:
 213             SB_OnLButtonUp(hWnd, wParam, lParam);
 214             break;
 215         case WM_MOUSEMOVE:
 216             SB_OnMouseMove(hWnd, wParam, lParam);
 217             break;
 218         case WM_PAINT:
 219             SB_OnPaint(hWnd);
 220             break;
 221         default:
 222             return DefWindowProcW(hWnd, message, wParam, lParam);
 223     }
 224
 225     return 0;
 226 }
 227
 228 static void HH_RegisterSizeBarClass(HHInfo *pHHInfo)
 229 {
 230     WNDCLASSEXW wcex;
 231
 232     wcex.cbSize         = sizeof(WNDCLASSEXW);
 233     wcex.style          = 0;
 234     wcex.lpfnWndProc    = SizeBar_WndProc;
 235     wcex.cbClsExtra     = 0;
 236     wcex.cbWndExtra     = 0;
 237     wcex.hInstance      = hhctrl_hinstance;
 238     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 239     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_SIZEWE);
 240     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
 241     wcex.lpszMenuName   = NULL;
 242     wcex.lpszClassName  = szSizeBarClass;
 243     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 244
 245     RegisterClassExW(&wcex);
 246 }
 247
 248 static void SB_GetSizeBarRect(HHInfo *info, RECT *rc)
 249 {
 250     RECT rectWND, rectTB, rectNP;
 251
 252     GetClientRect(info->WinType.hwndHelp, &rectWND);
 253     GetClientRect(info->WinType.hwndToolBar, &rectTB);
 254     GetClientRect(info->WinType.hwndNavigation, &rectNP);
 255
 256     rc->left = rectNP.right;
 257     rc->top = rectTB.bottom;
 258     rc->bottom = rectWND.bottom - rectTB.bottom;
 259     rc->right = SIZEBAR_WIDTH;
 260 }
 261
 262 static BOOL HH_AddSizeBar(HHInfo *pHHInfo)
 263 {
 264     HWND hWnd;
 265     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 266     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE | WS_OVERLAPPED;
 267     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 268     RECT rc;
 269
 270     SB_GetSizeBarRect(pHHInfo, &rc);
 271
 272     hWnd = CreateWindowExW(dwExStyles, szSizeBarClass, szEmpty, dwStyles,
 273                            rc.left, rc.top, rc.right, rc.bottom,
 274                            hwndParent, NULL, hhctrl_hinstance, NULL);
 275     if (!hWnd)
 276         return FALSE;
 277
 278     /* store the pointer to the HH info struct */
 279     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)pHHInfo);
 280
 281     pHHInfo->hwndSizeBar = hWnd;
 282     return TRUE;
 283 }
 284
 285 /* Child Window */
 286
 287 static const WCHAR szChildClass[] = {
 288     'H','H',' ','C','h','i','l','d',0
 289 };
 290
 291 static LRESULT Child_OnPaint(HWND hWnd)
 292 {
 293     PAINTSTRUCT ps;
 294     HDC hdc;
 295     RECT rc;
 296
 297     hdc = BeginPaint(hWnd, &ps);
 298
 299     /* Only paint the Navigation pane, identified by the fact
 300      * that it has a child window
 301      */
 302     if (GetWindow(hWnd, GW_CHILD))
 303     {
 304         GetClientRect(hWnd, &rc);
 305
 306         /* set the border color */
 307         SelectObject(hdc, GetStockObject(DC_PEN));
 308         SetDCPenColor(hdc, GetSysColor(COLOR_BTNSHADOW));
 309
 310         /* Draw the top border */
 311         LineTo(hdc, rc.right, 0);
 312
 313         SelectObject(hdc, GetStockObject(WHITE_PEN));
 314         MoveToEx(hdc, 0, 1, NULL);
 315         LineTo(hdc, rc.right, 1);
 316     }
 317
 318     EndPaint(hWnd, &ps);
 319
 320     return 0;
 321 }
 322
 323 static void ResizeTabChild(HHInfo *info, int tab)
 324 {
 325     HWND hwnd = info->tabs[tab].hwnd;
 326     INT width, height;
 327     RECT rect, tabrc;
 328     DWORD cnt;
 329
 330     GetClientRect(info->WinType.hwndNavigation, &rect);
 331     SendMessageW(info->hwndTabCtrl, TCM_GETITEMRECT, 0, (LPARAM)&tabrc);
 332     cnt = SendMessageW(info->hwndTabCtrl, TCM_GETROWCOUNT, 0, 0);
 333
 334     rect.left = TAB_MARGIN;
 335     rect.top = TAB_TOP_PADDING + cnt*(tabrc.bottom-tabrc.top) + TAB_MARGIN;
 336     rect.right -= TAB_RIGHT_PADDING + TAB_MARGIN;
 337     rect.bottom -= TAB_MARGIN;
 338     width = rect.right-rect.left;
 339     height = rect.bottom-rect.top;
 340
 341     SetWindowPos(hwnd, NULL, rect.left, rect.top, width, height,
 342                  SWP_NOZORDER | SWP_NOACTIVATE);
 343
 344     /* Resize the tab widget column to perfectly fit the tab window and
 345      * leave sufficient space for the scroll widget.
 346      */
 347     switch (tab)
 348     {
 349     case TAB_INDEX: {
 350         int scroll_width = GetSystemMetrics(SM_CXVSCROLL);
 351         int border_width = GetSystemMetrics(SM_CXBORDER);
 352         int edge_width = GetSystemMetrics(SM_CXEDGE);
 353
 354         SendMessageW(info->tabs[TAB_INDEX].hwnd, LVM_SETCOLUMNWIDTH, 0,
 355                      width-scroll_width-2*border_width-2*edge_width);
 356
 357         break;
 358     }
 359     }
 360 }
 361
 362 static LRESULT Child_OnSize(HWND hwnd)
 363 {
 364     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 365     RECT rect;
 366
 367     if(!info || hwnd != info->WinType.hwndNavigation)
 368         return 0;
 369
 370     GetClientRect(hwnd, &rect);
 371     SetWindowPos(info->hwndTabCtrl, HWND_TOP, 0, 0,
 372                  rect.right - TAB_RIGHT_PADDING,
 373                  rect.bottom - TAB_TOP_PADDING, SWP_NOMOVE);
 374
 375     ResizeTabChild(info, TAB_CONTENTS);
 376     ResizeTabChild(info, TAB_INDEX);
 377     return 0;
 378 }
 379
 380 static LRESULT OnTabChange(HWND hwnd)
 381 {
 382     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 383
 384     TRACE("%p\n", hwnd);
 385
 386     if (!info)
 387         return 0;
 388
 389     if(info->tabs[info->current_tab].hwnd)
 390         ShowWindow(info->tabs[info->current_tab].hwnd, SW_HIDE);
 391
 392     info->current_tab = SendMessageW(info->hwndTabCtrl, TCM_GETCURSEL, 0, 0);
 393
 394     if(info->tabs[info->current_tab].hwnd)
 395         ShowWindow(info->tabs[info->current_tab].hwnd, SW_SHOW);
 396
 397     return 0;
 398 }
 399
 400 static LRESULT OnTopicChange(HWND hwnd, ContentItem *item)
 401 {
 402     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 403     LPCWSTR chmfile = NULL;
 404     ContentItem *iter = item;
 405
 406     if(!item || !info)
 407         return 0;
 408
 409     TRACE("name %s loal %s\n", debugstr_w(item->name), debugstr_w(item->local));
 410
 411     while(iter) {
 412         if(iter->merge.chm_file) {
 413             chmfile = iter->merge.chm_file;
 414             break;
 415         }
 416         iter = iter->parent;
 417     }
 418
 419     NavigateToChm(info, chmfile, item->local);
 420     return 0;
 421 }
 422
 423 static LRESULT CALLBACK Child_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 424 {
 425     switch (message)
 426     {
 427     case WM_PAINT:
 428         return Child_OnPaint(hWnd);
 429     case WM_SIZE:
 430         return Child_OnSize(hWnd);
 431     case WM_NOTIFY: {
 432         NMHDR *nmhdr = (NMHDR*)lParam;
 433         switch(nmhdr->code) {
 434         case TCN_SELCHANGE:
 435             return OnTabChange(hWnd);
 436         case TVN_SELCHANGEDW:
 437             return OnTopicChange(hWnd, (ContentItem*)((NMTREEVIEWW *)lParam)->itemNew.lParam);
 438         }
 439         break;
 440     }
 441     default:
 442         return DefWindowProcW(hWnd, message, wParam, lParam);
 443     }
 444
 445     return 0;
 446 }
 447
 448 static void HH_RegisterChildWndClass(HHInfo *pHHInfo)
 449 {
 450     WNDCLASSEXW wcex;
 451
 452     wcex.cbSize         = sizeof(WNDCLASSEXW);
 453     wcex.style          = 0;
 454     wcex.lpfnWndProc    = Child_WndProc;
 455     wcex.cbClsExtra     = 0;
 456     wcex.cbWndExtra     = 0;
 457     wcex.hInstance      = hhctrl_hinstance;
 458     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 459     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
 460     wcex.hbrBackground  = (HBRUSH)(COLOR_BTNFACE + 1);
 461     wcex.lpszMenuName   = NULL;
 462     wcex.lpszClassName  = szChildClass;
 463     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 464
 465     RegisterClassExW(&wcex);
 466 }
 467
 468 /* Toolbar */
 469
 470 #define ICON_SIZE   20
 471
 472 static void TB_OnClick(HWND hWnd, DWORD dwID)
 473 {
 474     HHInfo *info = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 475
 476     switch (dwID)
 477     {
 478         case IDTB_STOP:
 479             DoPageAction(info, WB_STOP);
 480             break;
 481         case IDTB_REFRESH:
 482             DoPageAction(info, WB_REFRESH);
 483             break;
 484         case IDTB_BACK:
 485             DoPageAction(info, WB_GOBACK);
 486             break;
 487         case IDTB_HOME:
 488             NavigateToChm(info, info->pCHMInfo->szFile, info->WinType.pszHome);
 489             break;
 490         case IDTB_FORWARD:
 491             DoPageAction(info, WB_GOFORWARD);
 492             break;
 493         case IDTB_EXPAND:
 494         case IDTB_CONTRACT:
 495         case IDTB_SYNC:
 496         case IDTB_PRINT:
 497         case IDTB_OPTIONS:
 498         case IDTB_BROWSE_FWD:
 499         case IDTB_BROWSE_BACK:
 500         case IDTB_JUMP1:
 501         case IDTB_JUMP2:
 502         case IDTB_CUSTOMIZE:
 503         case IDTB_ZOOM:
 504         case IDTB_TOC_NEXT:
 505         case IDTB_TOC_PREV:
 506             break;
 507     }
 508 }
 509
 510 static void TB_AddButton(TBBUTTON *pButtons, DWORD dwIndex, DWORD dwID)
 511 {
 512     /* FIXME: Load the correct button bitmaps */
 513     pButtons[dwIndex].iBitmap = STD_PRINT;
 514     pButtons[dwIndex].idCommand = dwID;
 515     pButtons[dwIndex].fsState = TBSTATE_ENABLED;
 516     pButtons[dwIndex].fsStyle = BTNS_BUTTON;
 517     pButtons[dwIndex].dwData = 0;
 518     pButtons[dwIndex].iString = 0;
 519 }
 520
 521 static void TB_AddButtonsFromFlags(TBBUTTON *pButtons, DWORD dwButtonFlags, LPDWORD pdwNumButtons)
 522 {
 523     *pdwNumButtons = 0;
 524
 525     if (dwButtonFlags & HHWIN_BUTTON_EXPAND)
 526         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_EXPAND);
 527
 528     if (dwButtonFlags & HHWIN_BUTTON_BACK)
 529         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_BACK);
 530
 531     if (dwButtonFlags & HHWIN_BUTTON_FORWARD)
 532         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_FORWARD);
 533
 534     if (dwButtonFlags & HHWIN_BUTTON_STOP)
 535         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_STOP);
 536
 537     if (dwButtonFlags & HHWIN_BUTTON_REFRESH)
 538         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_REFRESH);
 539
 540     if (dwButtonFlags & HHWIN_BUTTON_HOME)
 541         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_HOME);
 542
 543     if (dwButtonFlags & HHWIN_BUTTON_SYNC)
 544         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_SYNC);
 545
 546     if (dwButtonFlags & HHWIN_BUTTON_OPTIONS)
 547         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_OPTIONS);
 548
 549     if (dwButtonFlags & HHWIN_BUTTON_PRINT)
 550         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_PRINT);
 551
 552     if (dwButtonFlags & HHWIN_BUTTON_JUMP1)
 553         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_JUMP1);
 554
 555     if (dwButtonFlags & HHWIN_BUTTON_JUMP2)
 556         TB_AddButton(pButtons,(*pdwNumButtons)++, IDTB_JUMP2);
 557
 558     if (dwButtonFlags & HHWIN_BUTTON_ZOOM)
 559         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_ZOOM);
 560
 561     if (dwButtonFlags & HHWIN_BUTTON_TOC_NEXT)
 562         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_TOC_NEXT);
 563
 564     if (dwButtonFlags & HHWIN_BUTTON_TOC_PREV)
 565         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_TOC_PREV);
 566 }
 567
 568 static BOOL HH_AddToolbar(HHInfo *pHHInfo)
 569 {
 570     HWND hToolbar;
 571     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 572     DWORD toolbarFlags;
 573     TBBUTTON buttons[IDTB_TOC_PREV - IDTB_EXPAND];
 574     TBADDBITMAP tbAB;
 575     DWORD dwStyles, dwExStyles;
 576     DWORD dwNumButtons, dwIndex;
 577
 578     if (pHHInfo->WinType.fsWinProperties & HHWIN_PARAM_TB_FLAGS)
 579         toolbarFlags = pHHInfo->WinType.fsToolBarFlags;
 580     else
 581         toolbarFlags = HHWIN_DEF_BUTTONS;
 582
 583     TB_AddButtonsFromFlags(buttons, toolbarFlags, &dwNumButtons);
 584
 585     dwStyles = WS_CHILDWINDOW | WS_VISIBLE | TBSTYLE_FLAT |
 586                TBSTYLE_WRAPABLE | TBSTYLE_TOOLTIPS | CCS_NODIVIDER;
 587     dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 588
 589     hToolbar = CreateWindowExW(dwExStyles, TOOLBARCLASSNAMEW, NULL, dwStyles,
 590                                0, 0, 0, 0, hwndParent, NULL,
 591                                hhctrl_hinstance, NULL);
 592     if (!hToolbar)
 593         return FALSE;
 594
 595     SendMessageW(hToolbar, TB_SETBITMAPSIZE, 0, MAKELONG(ICON_SIZE, ICON_SIZE));
 596     SendMessageW(hToolbar, TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);
 597     SendMessageW(hToolbar, WM_SETFONT, (WPARAM)pHHInfo->hFont, TRUE);
 598
 599     /* FIXME: Load correct icons for all buttons */
 600     tbAB.hInst = HINST_COMMCTRL;
 601     tbAB.nID = IDB_STD_LARGE_COLOR;
 602     SendMessageW(hToolbar, TB_ADDBITMAP, 0, (LPARAM)&tbAB);
 603
 604     for (dwIndex = 0; dwIndex < dwNumButtons; dwIndex++)
 605     {
 606         LPWSTR szBuf = HH_LoadString(buttons[dwIndex].idCommand);
 607         DWORD dwLen = strlenW(szBuf);
 608         szBuf[dwLen + 1] = 0; /* Double-null terminate */
 609
 610         buttons[dwIndex].iString = (DWORD)SendMessageW(hToolbar, TB_ADDSTRINGW, 0, (LPARAM)szBuf);
 611         heap_free(szBuf);
 612     }
 613
 614     SendMessageW(hToolbar, TB_ADDBUTTONSW, dwNumButtons, (LPARAM)buttons);
 615     SendMessageW(hToolbar, TB_AUTOSIZE, 0, 0);
 616     ShowWindow(hToolbar, SW_SHOW);
 617
 618     pHHInfo->WinType.hwndToolBar = hToolbar;
 619     return TRUE;
 620 }
 621
 622 /* Navigation Pane */
 623
 624 static void NP_GetNavigationRect(HHInfo *pHHInfo, RECT *rc)
 625 {
 626     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 627     HWND hwndToolbar = pHHInfo->WinType.hwndToolBar;
 628     RECT rectWND, rectTB;
 629
 630     GetClientRect(hwndParent, &rectWND);
 631     GetClientRect(hwndToolbar, &rectTB);
 632
 633     rc->left = 0;
 634     rc->top = rectTB.bottom;
 635     rc->bottom = rectWND.bottom - rectTB.bottom;
 636
 637     if (!(pHHInfo->WinType.fsValidMembers & HHWIN_PARAM_NAV_WIDTH) &&
 638           pHHInfo->WinType.iNavWidth == 0)
 639     {
 640         pHHInfo->WinType.iNavWidth = WINTYPE_DEFAULT_NAVWIDTH;
 641     }
 642
 643     rc->right = pHHInfo->WinType.iNavWidth;
 644 }
 645
 646 static DWORD NP_CreateTab(HINSTANCE hInstance, HWND hwndTabCtrl, DWORD index)
 647 {
 648     TCITEMW tie;
 649     LPWSTR tabText = HH_LoadString(index);
 650     DWORD ret;
 651
 652     tie.mask = TCIF_TEXT;
 653     tie.pszText = tabText;
 654
 655     ret = SendMessageW( hwndTabCtrl, TCM_INSERTITEMW, index, (LPARAM)&tie );
 656
 657     heap_free(tabText);
 658     return ret;
 659 }
 660
 661 static BOOL HH_AddNavigationPane(HHInfo *info)
 662 {
 663     HWND hWnd, hwndTabCtrl;
 664     HWND hwndParent = info->WinType.hwndHelp;
 665     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE;
 666     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 667     RECT rc;
 668
 669     NP_GetNavigationRect(info, &rc);
 670
 671     hWnd = CreateWindowExW(dwExStyles, szChildClass, szEmpty, dwStyles,
 672                            rc.left, rc.top, rc.right, rc.bottom,
 673                            hwndParent, NULL, hhctrl_hinstance, NULL);
 674     if (!hWnd)
 675         return FALSE;
 676
 677     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)info);
 678
 679     hwndTabCtrl = CreateWindowExW(dwExStyles, WC_TABCONTROLW, szEmpty, dwStyles,
 680                                   0, TAB_TOP_PADDING,
 681                                   rc.right - TAB_RIGHT_PADDING,
 682                                   rc.bottom - TAB_TOP_PADDING,
 683                                   hWnd, NULL, hhctrl_hinstance, NULL);
 684     if (!hwndTabCtrl)
 685         return FALSE;
 686
 687     if (*info->WinType.pszToc)
 688         info->tabs[TAB_CONTENTS].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_CONTENTS);
 689
 690     if (*info->WinType.pszIndex)
 691         info->tabs[TAB_INDEX].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_INDEX);
 692
 693     if (info->WinType.fsWinProperties & HHWIN_PROP_TAB_SEARCH)
 694         info->tabs[TAB_SEARCH].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_SEARCH);
 695
 696     if (info->WinType.fsWinProperties & HHWIN_PROP_TAB_FAVORITES)
 697         info->tabs[TAB_FAVORITES].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_FAVORITES);
 698
 699     SendMessageW(hwndTabCtrl, WM_SETFONT, (WPARAM)info->hFont, TRUE);
 700
 701     info->hwndTabCtrl = hwndTabCtrl;
 702     info->WinType.hwndNavigation = hWnd;
 703     return TRUE;
 704 }
 705
 706 /* HTML Pane */
 707
 708 static void HP_GetHTMLRect(HHInfo *info, RECT *rc)
 709 {
 710     RECT rectTB, rectWND, rectNP, rectSB;
 711
 712     GetClientRect(info->WinType.hwndHelp, &rectWND);
 713     GetClientRect(info->WinType.hwndToolBar, &rectTB);
 714     GetClientRect(info->WinType.hwndNavigation, &rectNP);
 715     GetClientRect(info->hwndSizeBar, &rectSB);
 716
 717     rc->left = rectNP.right + rectSB.right;
 718     rc->top = rectTB.bottom;
 719     rc->right = rectWND.right - rc->left;
 720     rc->bottom = rectWND.bottom - rectTB.bottom;
 721 }
 722
 723 static BOOL HH_AddHTMLPane(HHInfo *pHHInfo)
 724 {
 725     HWND hWnd;
 726     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 727     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE | WS_CLIPCHILDREN;
 728     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR | WS_EX_CLIENTEDGE;
 729     RECT rc;
 730
 731     HP_GetHTMLRect(pHHInfo, &rc);
 732
 733     hWnd = CreateWindowExW(dwExStyles, szChildClass, szEmpty, dwStyles,
 734                            rc.left, rc.top, rc.right, rc.bottom,
 735                            hwndParent, NULL, hhctrl_hinstance, NULL);
 736     if (!hWnd)
 737         return FALSE;
 738
 739     if (!InitWebBrowser(pHHInfo, hWnd))
 740         return FALSE;
 741
 742     /* store the pointer to the HH info struct */
 743     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)pHHInfo);
 744
 745     ShowWindow(hWnd, SW_SHOW);
 746     UpdateWindow(hWnd);
 747
 748     pHHInfo->WinType.hwndHTML = hWnd;
 749     return TRUE;
 750 }
 751
 752 static BOOL AddContentTab(HHInfo *info)
 753 {
 754     if(info->tabs[TAB_CONTENTS].id == -1)
 755         return TRUE; /* No "Contents" tab */
 756     info->tabs[TAB_CONTENTS].hwnd = CreateWindowExW(WS_EX_CLIENTEDGE, WC_TREEVIEWW,
 757            szEmpty, WS_CHILD | WS_BORDER | 0x25, 50, 50, 100, 100,
 758            info->WinType.hwndNavigation, NULL, hhctrl_hinstance, NULL);
 759     if(!info->tabs[TAB_CONTENTS].hwnd) {
 760         ERR("Could not create treeview control\n");
 761         return FALSE;
 762     }
 763
 764     ResizeTabChild(info, TAB_CONTENTS);
 765     ShowWindow(info->tabs[TAB_CONTENTS].hwnd, SW_SHOW);
 766
 767     return TRUE;
 768 }
 769
 770 static BOOL AddIndexTab(HHInfo *info)
 771 {
 772     char hidden_column[] = "Column";
 773     LVCOLUMNA lvc;
 774
 775     if(info->tabs[TAB_INDEX].id == -1)
 776         return TRUE; /* No "Index" tab */
 777     info->tabs[TAB_INDEX].hwnd = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW,
 778            szEmpty, WS_CHILD | WS_BORDER | LVS_SINGLESEL | LVS_REPORT | LVS_NOCOLUMNHEADER, 50, 50, 100, 100,
 779            info->WinType.hwndNavigation, NULL, hhctrl_hinstance, NULL);
 780     if(!info->tabs[TAB_INDEX].hwnd) {
 781         ERR("Could not create ListView control\n");
 782         return FALSE;
 783     }
 784     memset(&lvc, 0, sizeof(lvc));
 785     lvc.mask = LVCF_TEXT;
 786     lvc.pszText = hidden_column;
 787     if(SendMessageW(info->tabs[TAB_INDEX].hwnd, LVM_INSERTCOLUMNA, 0, (LPARAM) &lvc) == -1)
 788     {
 789         ERR("Could not create ListView column\n");
 790         return FALSE;
 791     }
 792
 793     ResizeTabChild(info, TAB_INDEX);
 794     ShowWindow(info->tabs[TAB_INDEX].hwnd, SW_HIDE);
 795
 796     return TRUE;
 797 }
 798
 799 /* Viewer Window */
 800
 801 static LRESULT Help_OnSize(HWND hWnd)
 802 {
 803     HHInfo *pHHInfo = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 804     DWORD dwSize;
 805     RECT rc;
 806
 807     if (!pHHInfo)
 808         return 0;
 809
 810     NP_GetNavigationRect(pHHInfo, &rc);
 811     SetWindowPos(pHHInfo->WinType.hwndNavigation, HWND_TOP, 0, 0,
 812                  rc.right, rc.bottom, SWP_NOMOVE);
 813
 814     SB_GetSizeBarRect(pHHInfo, &rc);
 815     SetWindowPos(pHHInfo->hwndSizeBar, HWND_TOP, rc.left, rc.top,
 816                  rc.right, rc.bottom, SWP_SHOWWINDOW);
 817
 818     HP_GetHTMLRect(pHHInfo, &rc);
 819     SetWindowPos(pHHInfo->WinType.hwndHTML, HWND_TOP, rc.left, rc.top,
 820                  rc.right, rc.bottom, SWP_SHOWWINDOW);
 821
 822     /* Resize browser window taking the frame size into account */
 823     dwSize = GetSystemMetrics(SM_CXFRAME);
 824     ResizeWebBrowser(pHHInfo, rc.right - dwSize, rc.bottom - dwSize);
 825
 826     return 0;
 827 }
 828
 829 static LRESULT CALLBACK Help_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 830 {
 831     switch (message)
 832     {
 833     case WM_COMMAND:
 834         if (HIWORD(wParam) == BN_CLICKED)
 835             TB_OnClick(hWnd, LOWORD(wParam));
 836         break;
 837     case WM_SIZE:
 838         return Help_OnSize(hWnd);
 839     case WM_CLOSE:
 840         ReleaseHelpViewer((HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA));
 841         return 0;
 842     case WM_DESTROY:
 843         if(hh_process)
 844             PostQuitMessage(0);
 845         break;
 846
 847     default:
 848         return DefWindowProcW(hWnd, message, wParam, lParam);
 849     }
 850
 851     return 0;
 852 }
 853
 854 static BOOL HH_CreateHelpWindow(HHInfo *info)
 855 {
 856     HWND hWnd;
 857     RECT winPos = info->WinType.rcWindowPos;
 858     WNDCLASSEXW wcex;
 859     DWORD dwStyles, dwExStyles;
 860     DWORD x, y, width, height;
 861
 862     static const WCHAR windowClassW[] = {
 863         'H','H',' ', 'P','a','r','e','n','t',0
 864     };
 865
 866     wcex.cbSize         = sizeof(WNDCLASSEXW);
 867     wcex.style          = CS_HREDRAW | CS_VREDRAW;
 868     wcex.lpfnWndProc    = Help_WndProc;
 869     wcex.cbClsExtra     = 0;
 870     wcex.cbWndExtra     = 0;
 871     wcex.hInstance      = hhctrl_hinstance;
 872     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 873     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
 874     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
 875     wcex.lpszMenuName   = NULL;
 876     wcex.lpszClassName  = windowClassW;
 877     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 878
 879     RegisterClassExW(&wcex);
 880
 881     /* Read in window parameters if available */
 882     if (info->WinType.fsValidMembers & HHWIN_PARAM_STYLES)
 883         dwStyles = info->WinType.dwStyles | WS_OVERLAPPEDWINDOW;
 884     else
 885         dwStyles = WS_OVERLAPPEDWINDOW | WS_VISIBLE |
 886                    WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
 887
 888     if (info->WinType.fsValidMembers & HHWIN_PARAM_EXSTYLES)
 889         dwExStyles = info->WinType.dwExStyles;
 890     else
 891         dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_APPWINDOW |
 892                      WS_EX_WINDOWEDGE | WS_EX_RIGHTSCROLLBAR;
 893
 894     if (info->WinType.fsValidMembers & HHWIN_PARAM_RECT)
 895     {
 896         x = winPos.left;
 897         y = winPos.top;
 898         width = winPos.right - x;
 899         height = winPos.bottom - y;
 900     }
 901     else
 902     {
 903         x = WINTYPE_DEFAULT_X;
 904         y = WINTYPE_DEFAULT_Y;
 905         width = WINTYPE_DEFAULT_WIDTH;
 906         height = WINTYPE_DEFAULT_HEIGHT;
 907     }
 908
 909     hWnd = CreateWindowExW(dwExStyles, windowClassW, info->WinType.pszCaption,
 910                            dwStyles, x, y, width, height, NULL, NULL, hhctrl_hinstance, NULL);
 911     if (!hWnd)
 912         return FALSE;
 913
 914     ShowWindow(hWnd, SW_SHOW);
 915     UpdateWindow(hWnd);
 916
 917     /* store the pointer to the HH info struct */
 918     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)info);
 919
 920     info->WinType.hwndHelp = hWnd;
 921     return TRUE;
 922 }
 923
 924 static void HH_CreateFont(HHInfo *pHHInfo)
 925 {
 926     LOGFONTW lf;
 927
 928     GetObjectW(GetStockObject(ANSI_VAR_FONT), sizeof(LOGFONTW), &lf);
 929     lf.lfWeight = FW_NORMAL;
 930     lf.lfItalic = FALSE;
 931     lf.lfUnderline = FALSE;
 932
 933     pHHInfo->hFont = CreateFontIndirectW(&lf);
 934 }
 935
 936 static void HH_InitRequiredControls(DWORD dwControls)
 937 {
 938     INITCOMMONCONTROLSEX icex;
 939
 940     icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
 941     icex.dwICC = dwControls;
 942     InitCommonControlsEx(&icex);
 943 }
 944
 945 /* Creates the whole package */
 946 static BOOL CreateViewer(HHInfo *pHHInfo)
 947 {
 948     HH_CreateFont(pHHInfo);
 949
 950     if (!HH_CreateHelpWindow(pHHInfo))
 951         return FALSE;
 952
 953     HH_InitRequiredControls(ICC_BAR_CLASSES);
 954
 955     if (!HH_AddToolbar(pHHInfo))
 956         return FALSE;
 957
 958     HH_RegisterChildWndClass(pHHInfo);
 959
 960     if (!HH_AddNavigationPane(pHHInfo))
 961         return FALSE;
 962
 963     HH_RegisterSizeBarClass(pHHInfo);
 964
 965     if (!HH_AddSizeBar(pHHInfo))
 966         return FALSE;
 967
 968     if (!HH_AddHTMLPane(pHHInfo))
 969         return FALSE;
 970
 971     if (!AddContentTab(pHHInfo))
 972         return FALSE;
 973
 974     if (!AddIndexTab(pHHInfo))
 975         return FALSE;
 976
 977     InitContent(pHHInfo);
 978
 979     return TRUE;
 980 }
 981
 982 void ReleaseHelpViewer(HHInfo *info)
 983 {
 984     TRACE("(%p)\n", info);
 985
 986     if (!info)
 987         return;
 988
 989     /* Free allocated strings */
 990     heap_free(info->pszType);
 991     heap_free(info->pszCaption);
 992     heap_free(info->pszToc);
 993     heap_free(info->pszIndex);
 994     heap_free(info->pszFile);
 995     heap_free(info->pszHome);
 996     heap_free(info->pszJump1);
 997     heap_free(info->pszJump2);
 998     heap_free(info->pszUrlJump1);
 999     heap_free(info->pszUrlJump2);
1000
1001     if (info->pCHMInfo)
1002         CloseCHM(info->pCHMInfo);
1003
1004     ReleaseWebBrowser(info);
1005     ReleaseContent(info);
1006
1007     if(info->WinType.hwndHelp)
1008         DestroyWindow(info->WinType.hwndHelp);
1009
1010     heap_free(info);
1011     OleUninitialize();
1012 }
1013
1014 HHInfo *CreateHelpViewer(LPCWSTR filename)
1015 {
1016     HHInfo *info = heap_alloc_zero(sizeof(HHInfo));
1017     int i;
1018
1019     /* Set the invalid tab ID (-1) as the default value for all
1020      * of the tabs, this matches a failed TCM_INSERTITEM call.
1021      */
1022     for(i=0;i<sizeof(info->tabs)/sizeof(HHTab);i++)
1023         info->tabs[i].id = -1;
1024
1025     OleInitialize(NULL);
1026
1027     info->pCHMInfo = OpenCHM(filename);
1028     if(!info->pCHMInfo) {
1029         ReleaseHelpViewer(info);
1030         return NULL;
1031     }
1032
1033     if (!LoadWinTypeFromCHM(info)) {
1034         ReleaseHelpViewer(info);
1035         return NULL;
1036     }
1037
1038     if(!CreateViewer(info)) {
1039         ReleaseHelpViewer(info);
1040         return NULL;
1041     }
1042
1043     return info;
1044 }