dlls/hhctrl.ocx/help.c

   1 /*
   2  * Help Viewer Implementation
   3  *
   4  * Copyright 2005 James Hawkins
   5  * Copyright 2007 Jacek Caban for CodeWeavers
   6  * Copyright 2011 Owen Rudge for CodeWeavers
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include "hhctrl.h"
  24
  25 #include "wingdi.h"
  26 #include "commctrl.h"
  27 #include "wininet.h"
  28
  29 #include "wine/debug.h"
  30
  31 #include "resource.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(htmlhelp);
  34
  35 static LRESULT Help_OnSize(HWND hWnd);
  36 static void ExpandContract(HHInfo *pHHInfo);
  37
  38 /* Window type defaults */
  39
  40 #define WINTYPE_DEFAULT_X           280
  41 #define WINTYPE_DEFAULT_Y           100
  42 #define WINTYPE_DEFAULT_WIDTH       740
  43 #define WINTYPE_DEFAULT_HEIGHT      640
  44 #define WINTYPE_DEFAULT_NAVWIDTH    250
  45
  46 #define TAB_TOP_PADDING     8
  47 #define TAB_RIGHT_PADDING   4
  48 #define TAB_MARGIN  8
  49 #define EDIT_HEIGHT         20
  50
  51 static const WCHAR szEmpty[] = {0};
  52
  53 /* Loads a string from the resource file */
  54 static LPWSTR HH_LoadString(DWORD dwID)
  55 {
  56     LPWSTR string = NULL;
  57     LPCWSTR stringresource;
  58     int iSize;
  59
  60     iSize = LoadStringW(hhctrl_hinstance, dwID, (LPWSTR)&stringresource, 0);
  61
  62     string = heap_alloc((iSize + 2) * sizeof(WCHAR)); /* some strings (tab text) needs double-null termination */
  63     memcpy(string, stringresource, iSize*sizeof(WCHAR));
  64     string[iSize] = 0;
  65
  66     return string;
  67 }
  68
  69 static HRESULT navigate_url(HHInfo *info, LPCWSTR surl)
  70 {
  71     VARIANT url;
  72     HRESULT hres;
  73
  74     TRACE("%s\n", debugstr_w(surl));
  75
  76     V_VT(&url) = VT_BSTR;
  77     V_BSTR(&url) = SysAllocString(surl);
  78
  79     hres = IWebBrowser2_Navigate2(info->web_browser, &url, 0, 0, 0, 0);
  80
  81     VariantClear(&url);
  82
  83     if(FAILED(hres))
  84         TRACE("Navigation failed: %08x\n", hres);
  85
  86     return hres;
  87 }
  88
  89 BOOL NavigateToUrl(HHInfo *info, LPCWSTR surl)
  90 {
  91     ChmPath chm_path;
  92     BOOL ret;
  93     HRESULT hres;
  94
  95     static const WCHAR url_indicator[] = {':', '/', '/', 0};
  96
  97     TRACE("%s\n", debugstr_w(surl));
  98
  99     if (strstrW(surl, url_indicator)) {
 100         hres = navigate_url(info, surl);
 101         if(SUCCEEDED(hres))
 102             return TRUE;
 103     } /* look up in chm if it doesn't look like a full url */
 104
 105     SetChmPath(&chm_path, info->pCHMInfo->szFile, surl);
 106     ret = NavigateToChm(info, chm_path.chm_file, chm_path.chm_index);
 107
 108     heap_free(chm_path.chm_file);
 109     heap_free(chm_path.chm_index);
 110
 111     return ret;
 112 }
 113
 114 BOOL AppendFullPathURL(LPCWSTR file, LPWSTR buf, LPCWSTR index)
 115 {
 116     static const WCHAR url_format[] =
 117         {'m','k',':','@','M','S','I','T','S','t','o','r','e',':','%','s',':',':','%','s','%','s',0};
 118     static const WCHAR slash[] = {'/',0};
 119     static const WCHAR empty[] = {0};
 120     WCHAR full_path[MAX_PATH];
 121
 122     TRACE("%s %p %s\n", debugstr_w(file), buf, debugstr_w(index));
 123
 124     if(!GetFullPathNameW(file, sizeof(full_path)/sizeof(full_path[0]), full_path, NULL)) {
 125         WARN("GetFullPathName failed: %u\n", GetLastError());
 126         return FALSE;
 127     }
 128
 129     wsprintfW(buf, url_format, full_path, (!index || index[0] == '/') ? empty : slash, index);
 130     return TRUE;
 131 }
 132
 133 BOOL NavigateToChm(HHInfo *info, LPCWSTR file, LPCWSTR index)
 134 {
 135     WCHAR buf[INTERNET_MAX_URL_LENGTH];
 136     LPWSTR ptr;
 137
 138     TRACE("%p %s %s\n", info, debugstr_w(file), debugstr_w(index));
 139
 140     if ((!info->web_browser) || !AppendFullPathURL(file, buf, index))
 141         return FALSE;
 142
 143     /* FIXME: HACK */
 144     if((ptr = strchrW(buf, '#')))
 145        *ptr = 0;
 146
 147     return SUCCEEDED(navigate_url(info, buf));
 148 }
 149
 150 static void DoSync(HHInfo *info)
 151 {
 152     WCHAR buf[INTERNET_MAX_URL_LENGTH];
 153     HRESULT hres;
 154     DWORD len;
 155     BSTR url;
 156
 157     hres = IWebBrowser2_get_LocationURL(info->web_browser, &url);
 158
 159     if (FAILED(hres))
 160     {
 161         WARN("get_LocationURL failed: %08x\n", hres);
 162         return;
 163     }
 164
 165     /* If we're not currently viewing a page in the active .chm file, abort */
 166     if ((!AppendFullPathURL(info->pszFile, buf, NULL)) || (len = lstrlenW(buf) > lstrlenW(url)))
 167     {
 168         SysFreeString(url);
 169         return;
 170     }
 171
 172     if (lstrcmpiW(buf, url) > 0)
 173     {
 174         static const WCHAR delimW[] = {':',':','/',0};
 175         const WCHAR *index;
 176
 177         index = strstrW(url, delimW);
 178
 179         if (index)
 180             ActivateContentTopic(info->tabs[TAB_CONTENTS].hwnd, index + 3, info->content); /* skip over ::/ */
 181     }
 182
 183     SysFreeString(url);
 184 }
 185
 186 /* Size Bar */
 187
 188 #define SIZEBAR_WIDTH   4
 189
 190 static const WCHAR szSizeBarClass[] = {
 191     'H','H',' ','S','i','z','e','B','a','r',0
 192 };
 193
 194 /* Draw the SizeBar */
 195 static void SB_OnPaint(HWND hWnd)
 196 {
 197     PAINTSTRUCT ps;
 198     HDC hdc;
 199     RECT rc;
 200
 201     hdc = BeginPaint(hWnd, &ps);
 202
 203     GetClientRect(hWnd, &rc);
 204
 205     /* dark frame */
 206     rc.right += 1;
 207     rc.bottom -= 1;
 208     FrameRect(hdc, &rc, GetStockObject(GRAY_BRUSH));
 209
 210     /* white highlight */
 211     SelectObject(hdc, GetStockObject(WHITE_PEN));
 212     MoveToEx(hdc, rc.right, 1, NULL);
 213     LineTo(hdc, 1, 1);
 214     LineTo(hdc, 1, rc.bottom - 1);
 215
 216
 217     MoveToEx(hdc, 0, rc.bottom, NULL);
 218     LineTo(hdc, rc.right, rc.bottom);
 219
 220     EndPaint(hWnd, &ps);
 221 }
 222
 223 static void SB_OnLButtonDown(HWND hWnd, WPARAM wParam, LPARAM lParam)
 224 {
 225     SetCapture(hWnd);
 226 }
 227
 228 static void SB_OnLButtonUp(HWND hWnd, WPARAM wParam, LPARAM lParam)
 229 {
 230     HHInfo *pHHInfo = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 231     POINT pt;
 232
 233     pt.x = (short)LOWORD(lParam);
 234     pt.y = (short)HIWORD(lParam);
 235
 236     /* update the window sizes */
 237     pHHInfo->WinType.iNavWidth += pt.x;
 238     Help_OnSize(hWnd);
 239
 240     ReleaseCapture();
 241 }
 242
 243 static void SB_OnMouseMove(HWND hWnd, WPARAM wParam, LPARAM lParam)
 244 {
 245     /* ignore WM_MOUSEMOVE if not dragging the SizeBar */
 246     if (!(wParam & MK_LBUTTON))
 247         return;
 248 }
 249
 250 static LRESULT CALLBACK SizeBar_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 251 {
 252     switch (message)
 253     {
 254         case WM_LBUTTONDOWN:
 255             SB_OnLButtonDown(hWnd, wParam, lParam);
 256             break;
 257         case WM_LBUTTONUP:
 258             SB_OnLButtonUp(hWnd, wParam, lParam);
 259             break;
 260         case WM_MOUSEMOVE:
 261             SB_OnMouseMove(hWnd, wParam, lParam);
 262             break;
 263         case WM_PAINT:
 264             SB_OnPaint(hWnd);
 265             break;
 266         default:
 267             return DefWindowProcW(hWnd, message, wParam, lParam);
 268     }
 269
 270     return 0;
 271 }
 272
 273 static void HH_RegisterSizeBarClass(HHInfo *pHHInfo)
 274 {
 275     WNDCLASSEXW wcex;
 276
 277     wcex.cbSize         = sizeof(WNDCLASSEXW);
 278     wcex.style          = 0;
 279     wcex.lpfnWndProc    = SizeBar_WndProc;
 280     wcex.cbClsExtra     = 0;
 281     wcex.cbWndExtra     = 0;
 282     wcex.hInstance      = hhctrl_hinstance;
 283     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 284     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_SIZEWE);
 285     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
 286     wcex.lpszMenuName   = NULL;
 287     wcex.lpszClassName  = szSizeBarClass;
 288     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 289
 290     RegisterClassExW(&wcex);
 291 }
 292
 293 static void SB_GetSizeBarRect(HHInfo *info, RECT *rc)
 294 {
 295     RECT rectWND, rectTB, rectNP;
 296
 297     GetClientRect(info->WinType.hwndHelp, &rectWND);
 298     GetClientRect(info->WinType.hwndToolBar, &rectTB);
 299     GetClientRect(info->WinType.hwndNavigation, &rectNP);
 300
 301     rc->left = rectNP.right;
 302     rc->top = rectTB.bottom;
 303     rc->bottom = rectWND.bottom - rectTB.bottom;
 304     rc->right = SIZEBAR_WIDTH;
 305 }
 306
 307 static BOOL HH_AddSizeBar(HHInfo *pHHInfo)
 308 {
 309     HWND hWnd;
 310     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 311     DWORD dwStyles = WS_CHILDWINDOW | WS_OVERLAPPED;
 312     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 313     RECT rc;
 314
 315     if (!pHHInfo->WinType.fNotExpanded)
 316         dwStyles |= WS_VISIBLE;
 317
 318     SB_GetSizeBarRect(pHHInfo, &rc);
 319
 320     hWnd = CreateWindowExW(dwExStyles, szSizeBarClass, szEmpty, dwStyles,
 321                            rc.left, rc.top, rc.right, rc.bottom,
 322                            hwndParent, NULL, hhctrl_hinstance, NULL);
 323     if (!hWnd)
 324         return FALSE;
 325
 326     /* store the pointer to the HH info struct */
 327     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)pHHInfo);
 328
 329     pHHInfo->hwndSizeBar = hWnd;
 330     return TRUE;
 331 }
 332
 333 /* Child Window */
 334
 335 static const WCHAR szChildClass[] = {
 336     'H','H',' ','C','h','i','l','d',0
 337 };
 338
 339 static LRESULT Child_OnPaint(HWND hWnd)
 340 {
 341     PAINTSTRUCT ps;
 342     HDC hdc;
 343     RECT rc;
 344
 345     hdc = BeginPaint(hWnd, &ps);
 346
 347     /* Only paint the Navigation pane, identified by the fact
 348      * that it has a child window
 349      */
 350     if (GetWindow(hWnd, GW_CHILD))
 351     {
 352         GetClientRect(hWnd, &rc);
 353
 354         /* set the border color */
 355         SelectObject(hdc, GetStockObject(DC_PEN));
 356         SetDCPenColor(hdc, GetSysColor(COLOR_BTNSHADOW));
 357
 358         /* Draw the top border */
 359         LineTo(hdc, rc.right, 0);
 360
 361         SelectObject(hdc, GetStockObject(WHITE_PEN));
 362         MoveToEx(hdc, 0, 1, NULL);
 363         LineTo(hdc, rc.right, 1);
 364     }
 365
 366     EndPaint(hWnd, &ps);
 367
 368     return 0;
 369 }
 370
 371 static void ResizeTabChild(HHInfo *info, int tab)
 372 {
 373     HWND hwnd = info->tabs[tab].hwnd;
 374     INT width, height;
 375     RECT rect, tabrc;
 376     DWORD cnt;
 377
 378     GetClientRect(info->WinType.hwndNavigation, &rect);
 379     SendMessageW(info->hwndTabCtrl, TCM_GETITEMRECT, 0, (LPARAM)&tabrc);
 380     cnt = SendMessageW(info->hwndTabCtrl, TCM_GETROWCOUNT, 0, 0);
 381
 382     rect.left = TAB_MARGIN;
 383     rect.top = TAB_TOP_PADDING + cnt*(tabrc.bottom-tabrc.top) + TAB_MARGIN;
 384     rect.right -= TAB_RIGHT_PADDING + TAB_MARGIN;
 385     rect.bottom -= TAB_MARGIN;
 386     width = rect.right-rect.left;
 387     height = rect.bottom-rect.top;
 388
 389     SetWindowPos(hwnd, NULL, rect.left, rect.top, width, height,
 390                  SWP_NOZORDER | SWP_NOACTIVATE);
 391
 392     switch (tab)
 393     {
 394     case TAB_INDEX: {
 395         int scroll_width = GetSystemMetrics(SM_CXVSCROLL);
 396         int border_width = GetSystemMetrics(SM_CXBORDER);
 397         int edge_width = GetSystemMetrics(SM_CXEDGE);
 398
 399         /* Resize the tab widget column to perfectly fit the tab window and
 400          * leave sufficient space for the scroll widget.
 401          */
 402         SendMessageW(info->tabs[TAB_INDEX].hwnd, LVM_SETCOLUMNWIDTH, 0,
 403                      width-scroll_width-2*border_width-2*edge_width);
 404
 405         break;
 406     }
 407     case TAB_SEARCH: {
 408         int scroll_width = GetSystemMetrics(SM_CXVSCROLL);
 409         int border_width = GetSystemMetrics(SM_CXBORDER);
 410         int edge_width = GetSystemMetrics(SM_CXEDGE);
 411         int top_pos = 0;
 412
 413         SetWindowPos(info->search.hwndEdit, NULL, 0, top_pos, width,
 414                       EDIT_HEIGHT, SWP_NOZORDER | SWP_NOACTIVATE);
 415         top_pos += EDIT_HEIGHT + TAB_MARGIN;
 416         SetWindowPos(info->search.hwndList, NULL, 0, top_pos, width,
 417                       height-top_pos, SWP_NOZORDER | SWP_NOACTIVATE);
 418         /* Resize the tab widget column to perfectly fit the tab window and
 419          * leave sufficient space for the scroll widget.
 420          */
 421         SendMessageW(info->search.hwndList, LVM_SETCOLUMNWIDTH, 0,
 422                      width-scroll_width-2*border_width-2*edge_width);
 423
 424         break;
 425     }
 426     }
 427 }
 428
 429 static LRESULT Child_OnSize(HWND hwnd)
 430 {
 431     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 432     RECT rect;
 433
 434     if(!info || hwnd != info->WinType.hwndNavigation)
 435         return 0;
 436
 437     GetClientRect(hwnd, &rect);
 438     SetWindowPos(info->hwndTabCtrl, HWND_TOP, 0, 0,
 439                  rect.right - TAB_RIGHT_PADDING,
 440                  rect.bottom - TAB_TOP_PADDING, SWP_NOMOVE);
 441
 442     ResizeTabChild(info, TAB_CONTENTS);
 443     ResizeTabChild(info, TAB_INDEX);
 444     return 0;
 445 }
 446
 447 static LRESULT OnTabChange(HWND hwnd)
 448 {
 449     HHInfo *info = (HHInfo*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 450
 451     TRACE("%p\n", hwnd);
 452
 453     if (!info)
 454         return 0;
 455
 456     if(info->tabs[info->current_tab].hwnd)
 457         ShowWindow(info->tabs[info->current_tab].hwnd, SW_HIDE);
 458
 459     info->current_tab = SendMessageW(info->hwndTabCtrl, TCM_GETCURSEL, 0, 0);
 460
 461     if(info->tabs[info->current_tab].hwnd)
 462         ShowWindow(info->tabs[info->current_tab].hwnd, SW_SHOW);
 463
 464     return 0;
 465 }
 466
 467 static LRESULT OnTopicChange(HHInfo *info, void *user_data)
 468 {
 469     LPCWSTR chmfile = NULL, name = NULL, local = NULL;
 470     ContentItem *citer;
 471     SearchItem *siter;
 472     IndexItem *iiter;
 473
 474     if(!user_data || !info)
 475         return 0;
 476
 477     switch (info->current_tab)
 478     {
 479     case TAB_CONTENTS:
 480         citer = (ContentItem *) user_data;
 481         name = citer->name;
 482         local = citer->local;
 483         while(citer) {
 484             if(citer->merge.chm_file) {
 485                 chmfile = citer->merge.chm_file;
 486                 break;
 487             }
 488             citer = citer->parent;
 489         }
 490         break;
 491     case TAB_INDEX:
 492         iiter = (IndexItem *) user_data;
 493         if(iiter->nItems == 0) {
 494             FIXME("No entries for this item!\n");
 495             return 0;
 496         }
 497         if(iiter->nItems > 1) {
 498             int i = 0;
 499             LVITEMW lvi;
 500
 501             SendMessageW(info->popup.hwndList, LVM_DELETEALLITEMS, 0, 0);
 502             for(i=0;i<iiter->nItems;i++) {
 503                 IndexSubItem *item = &iiter->items[i];
 504                 WCHAR *name = iiter->keyword;
 505
 506                 if(item->name)
 507                     name = item->name;
 508                 memset(&lvi, 0, sizeof(lvi));
 509                 lvi.iItem = i;
 510                 lvi.mask = LVIF_TEXT|LVIF_PARAM;
 511                 lvi.cchTextMax = strlenW(name)+1;
 512                 lvi.pszText = name;
 513                 lvi.lParam = (LPARAM) item;
 514                 SendMessageW(info->popup.hwndList, LVM_INSERTITEMW, 0, (LPARAM)&lvi);
 515             }
 516             ShowWindow(info->popup.hwndPopup, SW_SHOW);
 517             return 0;
 518         }
 519         name = iiter->items[0].name;
 520         local = iiter->items[0].local;
 521         chmfile = iiter->merge.chm_file;
 522         break;
 523     case TAB_SEARCH:
 524         siter = (SearchItem *) user_data;
 525         name = siter->filename;
 526         local = siter->filename;
 527         chmfile = info->pCHMInfo->szFile;
 528         break;
 529     default:
 530         FIXME("Unhandled operation for this tab!\n");
 531         return 0;
 532     }
 533
 534     if(!chmfile)
 535     {
 536         FIXME("No help file found for this item!\n");
 537         return 0;
 538     }
 539
 540     TRACE("name %s loal %s\n", debugstr_w(name), debugstr_w(local));
 541
 542     NavigateToChm(info, chmfile, local);
 543     return 0;
 544 }
 545
 546 /* Capture the Enter/Return key and send it up to Child_WndProc as an NM_RETURN message */
 547 static LRESULT CALLBACK EditChild_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 548 {
 549     WNDPROC editWndProc = (WNDPROC)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 550
 551     if(message == WM_KEYUP && wParam == VK_RETURN)
 552     {
 553         NMHDR nmhdr;
 554
 555         nmhdr.hwndFrom = hWnd;
 556         nmhdr.code = NM_RETURN;
 557         SendMessageW(GetParent(GetParent(hWnd)), WM_NOTIFY, wParam, (LPARAM)&nmhdr);
 558     }
 559     return editWndProc(hWnd, message, wParam, lParam);
 560 }
 561
 562 static LRESULT CALLBACK Child_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 563 {
 564     switch (message)
 565     {
 566     case WM_PAINT:
 567         return Child_OnPaint(hWnd);
 568     case WM_SIZE:
 569         return Child_OnSize(hWnd);
 570     case WM_NOTIFY: {
 571         HHInfo *info = (HHInfo*)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 572         NMHDR *nmhdr = (NMHDR*)lParam;
 573
 574         switch(nmhdr->code) {
 575         case TCN_SELCHANGE:
 576             return OnTabChange(hWnd);
 577         case TVN_SELCHANGEDW:
 578             return OnTopicChange(info, (void*)((NMTREEVIEWW *)lParam)->itemNew.lParam);
 579         case NM_DBLCLK:
 580             if(!info)
 581                 return 0;
 582             switch(info->current_tab)
 583             {
 584             case TAB_INDEX:
 585                 return OnTopicChange(info, (void*)((NMITEMACTIVATE *)lParam)->lParam);
 586             case TAB_SEARCH:
 587                 return OnTopicChange(info, (void*)((NMITEMACTIVATE *)lParam)->lParam);
 588             }
 589             break;
 590         case NM_RETURN:
 591             if(!info)
 592                 return 0;
 593             switch(info->current_tab) {
 594             case TAB_INDEX: {
 595                 HWND hwndList = info->tabs[TAB_INDEX].hwnd;
 596                 LVITEMW lvItem;
 597
 598                 lvItem.iItem = (int) SendMessageW(hwndList, LVM_GETSELECTIONMARK, 0, 0);
 599                 lvItem.mask = TVIF_PARAM;
 600                 SendMessageW(hwndList, LVM_GETITEMW, 0, (LPARAM)&lvItem);
 601                 OnTopicChange(info, (void*) lvItem.lParam);
 602                 return 0;
 603             }
 604             case TAB_SEARCH: {
 605                 if(nmhdr->hwndFrom == info->search.hwndEdit) {
 606                     char needle[100];
 607                     DWORD i, len;
 608
 609                     len = GetWindowTextA(info->search.hwndEdit, needle, sizeof(needle));
 610                     if(!len)
 611                     {
 612                         FIXME("Unable to get search text.\n");
 613                         return 0;
 614                     }
 615                     /* Convert the requested text for comparison later against the
 616                      * lower case version of HTML file contents.
 617                      */
 618                     for(i=0;i<len;i++)
 619                         needle[i] = tolower(needle[i]);
 620                     InitSearch(info, needle);
 621                     return 0;
 622                 }else if(nmhdr->hwndFrom == info->search.hwndList) {
 623                     HWND hwndList = info->search.hwndList;
 624                     LVITEMW lvItem;
 625
 626                     lvItem.iItem = (int) SendMessageW(hwndList, LVM_GETSELECTIONMARK, 0, 0);
 627                     lvItem.mask = TVIF_PARAM;
 628                     SendMessageW(hwndList, LVM_GETITEMW, 0, (LPARAM)&lvItem);
 629                     OnTopicChange(info, (void*) lvItem.lParam);
 630                     return 0;
 631                 }
 632                 break;
 633             }
 634             }
 635             break;
 636         }
 637         break;
 638     }
 639     default:
 640         return DefWindowProcW(hWnd, message, wParam, lParam);
 641     }
 642
 643     return 0;
 644 }
 645
 646 static void HH_RegisterChildWndClass(HHInfo *pHHInfo)
 647 {
 648     WNDCLASSEXW wcex;
 649
 650     wcex.cbSize         = sizeof(WNDCLASSEXW);
 651     wcex.style          = 0;
 652     wcex.lpfnWndProc    = Child_WndProc;
 653     wcex.cbClsExtra     = 0;
 654     wcex.cbWndExtra     = 0;
 655     wcex.hInstance      = hhctrl_hinstance;
 656     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 657     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
 658     wcex.hbrBackground  = (HBRUSH)(COLOR_BTNFACE + 1);
 659     wcex.lpszMenuName   = NULL;
 660     wcex.lpszClassName  = szChildClass;
 661     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
 662
 663     RegisterClassExW(&wcex);
 664 }
 665
 666 /* Toolbar */
 667
 668 #define ICON_SIZE   20
 669
 670 static void DisplayPopupMenu(HHInfo *info)
 671 {
 672     HMENU menu, submenu;
 673     TBBUTTONINFOW button;
 674     MENUITEMINFOW item;
 675     POINT coords;
 676     RECT rect;
 677     DWORD index;
 678
 679     menu = LoadMenuW(hhctrl_hinstance, MAKEINTRESOURCEW(MENU_POPUP));
 680
 681     if (!menu)
 682         return;
 683
 684     submenu = GetSubMenu(menu, 0);
 685
 686     /* Update the Show/Hide menu item */
 687     item.cbSize = sizeof(MENUITEMINFOW);
 688     item.fMask = MIIM_STRING;
 689
 690     if (info->WinType.fNotExpanded)
 691         item.dwTypeData = HH_LoadString(IDS_SHOWTABS);
 692     else
 693         item.dwTypeData = HH_LoadString(IDS_HIDETABS);
 694
 695     SetMenuItemInfoW(submenu, IDTB_EXPAND, FALSE, &item);
 696     heap_free(item.dwTypeData);
 697
 698     /* Find the index toolbar button */
 699     button.cbSize = sizeof(TBBUTTONINFOW);
 700     button.dwMask = TBIF_COMMAND;
 701     index = SendMessageW(info->WinType.hwndToolBar, TB_GETBUTTONINFOW, IDTB_OPTIONS, (LPARAM) &button);
 702
 703     if (index == -1)
 704        return;
 705
 706     /* Get position */
 707     SendMessageW(info->WinType.hwndToolBar, TB_GETITEMRECT, index, (LPARAM) &rect);
 708
 709     coords.x = rect.left;
 710     coords.y = rect.bottom;
 711
 712     ClientToScreen(info->WinType.hwndToolBar, &coords);
 713     TrackPopupMenu(submenu, TPM_LEFTALIGN | TPM_TOPALIGN | TPM_LEFTBUTTON | TPM_NOANIMATION, coords.x, coords.y, 0, info->WinType.hwndHelp, NULL);
 714 }
 715
 716 static void TB_OnClick(HWND hWnd, DWORD dwID)
 717 {
 718     HHInfo *info = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 719
 720     switch (dwID)
 721     {
 722         case IDTB_STOP:
 723             DoPageAction(info, WB_STOP);
 724             break;
 725         case IDTB_REFRESH:
 726             DoPageAction(info, WB_REFRESH);
 727             break;
 728         case IDTB_BACK:
 729             DoPageAction(info, WB_GOBACK);
 730             break;
 731         case IDTB_HOME:
 732             NavigateToChm(info, info->pCHMInfo->szFile, info->WinType.pszHome);
 733             break;
 734         case IDTB_FORWARD:
 735             DoPageAction(info, WB_GOFORWARD);
 736             break;
 737         case IDTB_PRINT:
 738             DoPageAction(info, WB_PRINT);
 739             break;
 740         case IDTB_EXPAND:
 741         case IDTB_CONTRACT:
 742             ExpandContract(info);
 743             break;
 744         case IDTB_SYNC:
 745             DoSync(info);
 746             break;
 747         case IDTB_OPTIONS:
 748             DisplayPopupMenu(info);
 749             break;
 750         case IDTB_BROWSE_FWD:
 751         case IDTB_BROWSE_BACK:
 752         case IDTB_JUMP1:
 753         case IDTB_JUMP2:
 754         case IDTB_CUSTOMIZE:
 755         case IDTB_ZOOM:
 756         case IDTB_TOC_NEXT:
 757         case IDTB_TOC_PREV:
 758             break;
 759     }
 760 }
 761
 762 static void TB_AddButton(TBBUTTON *pButtons, DWORD dwIndex, DWORD dwID)
 763 {
 764     /* FIXME: Load the correct button bitmaps */
 765     pButtons[dwIndex].iBitmap = STD_PRINT;
 766     pButtons[dwIndex].idCommand = dwID;
 767     pButtons[dwIndex].fsState = TBSTATE_ENABLED;
 768     pButtons[dwIndex].fsStyle = BTNS_BUTTON;
 769     pButtons[dwIndex].dwData = 0;
 770     pButtons[dwIndex].iString = 0;
 771 }
 772
 773 static void TB_AddButtonsFromFlags(HHInfo *pHHInfo, TBBUTTON *pButtons, DWORD dwButtonFlags, LPDWORD pdwNumButtons)
 774 {
 775     *pdwNumButtons = 0;
 776
 777     if (dwButtonFlags & HHWIN_BUTTON_EXPAND)
 778     {
 779         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_EXPAND);
 780         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_CONTRACT);
 781
 782         if (pHHInfo->WinType.fNotExpanded)
 783             pButtons[1].fsState |= TBSTATE_HIDDEN;
 784         else
 785             pButtons[0].fsState |= TBSTATE_HIDDEN;
 786     }
 787
 788     if (dwButtonFlags & HHWIN_BUTTON_BACK)
 789         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_BACK);
 790
 791     if (dwButtonFlags & HHWIN_BUTTON_FORWARD)
 792         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_FORWARD);
 793
 794     if (dwButtonFlags & HHWIN_BUTTON_STOP)
 795         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_STOP);
 796
 797     if (dwButtonFlags & HHWIN_BUTTON_REFRESH)
 798         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_REFRESH);
 799
 800     if (dwButtonFlags & HHWIN_BUTTON_HOME)
 801         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_HOME);
 802
 803     if (dwButtonFlags & HHWIN_BUTTON_SYNC)
 804         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_SYNC);
 805
 806     if (dwButtonFlags & HHWIN_BUTTON_OPTIONS)
 807         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_OPTIONS);
 808
 809     if (dwButtonFlags & HHWIN_BUTTON_PRINT)
 810         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_PRINT);
 811
 812     if (dwButtonFlags & HHWIN_BUTTON_JUMP1)
 813         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_JUMP1);
 814
 815     if (dwButtonFlags & HHWIN_BUTTON_JUMP2)
 816         TB_AddButton(pButtons,(*pdwNumButtons)++, IDTB_JUMP2);
 817
 818     if (dwButtonFlags & HHWIN_BUTTON_ZOOM)
 819         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_ZOOM);
 820
 821     if (dwButtonFlags & HHWIN_BUTTON_TOC_NEXT)
 822         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_TOC_NEXT);
 823
 824     if (dwButtonFlags & HHWIN_BUTTON_TOC_PREV)
 825         TB_AddButton(pButtons, (*pdwNumButtons)++, IDTB_TOC_PREV);
 826 }
 827
 828 static BOOL HH_AddToolbar(HHInfo *pHHInfo)
 829 {
 830     HWND hToolbar;
 831     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 832     DWORD toolbarFlags;
 833     TBBUTTON buttons[IDTB_TOC_PREV - IDTB_EXPAND];
 834     TBADDBITMAP tbAB;
 835     DWORD dwStyles, dwExStyles;
 836     DWORD dwNumButtons, dwIndex;
 837
 838     if (pHHInfo->WinType.fsWinProperties & HHWIN_PARAM_TB_FLAGS)
 839         toolbarFlags = pHHInfo->WinType.fsToolBarFlags;
 840     else
 841         toolbarFlags = HHWIN_DEF_BUTTONS;
 842
 843     TB_AddButtonsFromFlags(pHHInfo, buttons, toolbarFlags, &dwNumButtons);
 844
 845     dwStyles = WS_CHILDWINDOW | WS_VISIBLE | TBSTYLE_FLAT |
 846                TBSTYLE_WRAPABLE | TBSTYLE_TOOLTIPS | CCS_NODIVIDER;
 847     dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 848
 849     hToolbar = CreateWindowExW(dwExStyles, TOOLBARCLASSNAMEW, NULL, dwStyles,
 850                                0, 0, 0, 0, hwndParent, NULL,
 851                                hhctrl_hinstance, NULL);
 852     if (!hToolbar)
 853         return FALSE;
 854
 855     SendMessageW(hToolbar, TB_SETBITMAPSIZE, 0, MAKELONG(ICON_SIZE, ICON_SIZE));
 856     SendMessageW(hToolbar, TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);
 857     SendMessageW(hToolbar, WM_SETFONT, (WPARAM)pHHInfo->hFont, TRUE);
 858
 859     /* FIXME: Load correct icons for all buttons */
 860     tbAB.hInst = HINST_COMMCTRL;
 861     tbAB.nID = IDB_STD_LARGE_COLOR;
 862     SendMessageW(hToolbar, TB_ADDBITMAP, 0, (LPARAM)&tbAB);
 863
 864     for (dwIndex = 0; dwIndex < dwNumButtons; dwIndex++)
 865     {
 866         LPWSTR szBuf = HH_LoadString(buttons[dwIndex].idCommand);
 867         DWORD dwLen = strlenW(szBuf);
 868         szBuf[dwLen + 1] = 0; /* Double-null terminate */
 869
 870         buttons[dwIndex].iString = (DWORD)SendMessageW(hToolbar, TB_ADDSTRINGW, 0, (LPARAM)szBuf);
 871         heap_free(szBuf);
 872     }
 873
 874     SendMessageW(hToolbar, TB_ADDBUTTONSW, dwNumButtons, (LPARAM)buttons);
 875     SendMessageW(hToolbar, TB_AUTOSIZE, 0, 0);
 876     ShowWindow(hToolbar, SW_SHOW);
 877
 878     pHHInfo->WinType.hwndToolBar = hToolbar;
 879     return TRUE;
 880 }
 881
 882 /* Navigation Pane */
 883
 884 static void NP_GetNavigationRect(HHInfo *pHHInfo, RECT *rc)
 885 {
 886     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 887     HWND hwndToolbar = pHHInfo->WinType.hwndToolBar;
 888     RECT rectWND, rectTB;
 889
 890     GetClientRect(hwndParent, &rectWND);
 891     GetClientRect(hwndToolbar, &rectTB);
 892
 893     rc->left = 0;
 894     rc->top = rectTB.bottom;
 895     rc->bottom = rectWND.bottom - rectTB.bottom;
 896
 897     if (!(pHHInfo->WinType.fsValidMembers & HHWIN_PARAM_NAV_WIDTH) &&
 898           pHHInfo->WinType.iNavWidth == 0)
 899     {
 900         pHHInfo->WinType.iNavWidth = WINTYPE_DEFAULT_NAVWIDTH;
 901     }
 902
 903     rc->right = pHHInfo->WinType.iNavWidth;
 904 }
 905
 906 static DWORD NP_CreateTab(HINSTANCE hInstance, HWND hwndTabCtrl, DWORD index)
 907 {
 908     TCITEMW tie;
 909     LPWSTR tabText = HH_LoadString(index);
 910     DWORD ret;
 911
 912     tie.mask = TCIF_TEXT;
 913     tie.pszText = tabText;
 914
 915     ret = SendMessageW( hwndTabCtrl, TCM_INSERTITEMW, index, (LPARAM)&tie );
 916
 917     heap_free(tabText);
 918     return ret;
 919 }
 920
 921 static BOOL HH_AddNavigationPane(HHInfo *info)
 922 {
 923     HWND hWnd, hwndTabCtrl;
 924     HWND hwndParent = info->WinType.hwndHelp;
 925     DWORD dwStyles = WS_CHILDWINDOW;
 926     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR;
 927     RECT rc;
 928
 929     if (!info->WinType.fNotExpanded)
 930         dwStyles |= WS_VISIBLE;
 931
 932     NP_GetNavigationRect(info, &rc);
 933
 934     hWnd = CreateWindowExW(dwExStyles, szChildClass, szEmpty, dwStyles,
 935                            rc.left, rc.top, rc.right, rc.bottom,
 936                            hwndParent, NULL, hhctrl_hinstance, NULL);
 937     if (!hWnd)
 938         return FALSE;
 939
 940     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)info);
 941
 942     hwndTabCtrl = CreateWindowExW(dwExStyles, WC_TABCONTROLW, szEmpty, dwStyles | WS_VISIBLE,
 943                                   0, TAB_TOP_PADDING,
 944                                   rc.right - TAB_RIGHT_PADDING,
 945                                   rc.bottom - TAB_TOP_PADDING,
 946                                   hWnd, NULL, hhctrl_hinstance, NULL);
 947     if (!hwndTabCtrl)
 948         return FALSE;
 949
 950     if (*info->WinType.pszToc)
 951         info->tabs[TAB_CONTENTS].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_CONTENTS);
 952
 953     if (*info->WinType.pszIndex)
 954         info->tabs[TAB_INDEX].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_INDEX);
 955
 956     if (info->WinType.fsWinProperties & HHWIN_PROP_TAB_SEARCH)
 957         info->tabs[TAB_SEARCH].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_SEARCH);
 958
 959     if (info->WinType.fsWinProperties & HHWIN_PROP_TAB_FAVORITES)
 960         info->tabs[TAB_FAVORITES].id = NP_CreateTab(hhctrl_hinstance, hwndTabCtrl, IDS_FAVORITES);
 961
 962     SendMessageW(hwndTabCtrl, WM_SETFONT, (WPARAM)info->hFont, TRUE);
 963
 964     info->hwndTabCtrl = hwndTabCtrl;
 965     info->WinType.hwndNavigation = hWnd;
 966     return TRUE;
 967 }
 968
 969 /* HTML Pane */
 970
 971 static void HP_GetHTMLRect(HHInfo *info, RECT *rc)
 972 {
 973     RECT rectTB, rectWND, rectNP, rectSB;
 974
 975     GetClientRect(info->WinType.hwndHelp, &rectWND);
 976     GetClientRect(info->WinType.hwndToolBar, &rectTB);
 977     GetClientRect(info->hwndSizeBar, &rectSB);
 978
 979     if (info->WinType.fNotExpanded)
 980         rc->left = 0;
 981     else
 982     {
 983         GetClientRect(info->WinType.hwndNavigation, &rectNP);
 984         rc->left = rectNP.right + rectSB.right;
 985     }
 986
 987     rc->top = rectTB.bottom;
 988     rc->right = rectWND.right - rc->left;
 989     rc->bottom = rectWND.bottom - rectTB.bottom;
 990 }
 991
 992 static BOOL HH_AddHTMLPane(HHInfo *pHHInfo)
 993 {
 994     HWND hWnd;
 995     HWND hwndParent = pHHInfo->WinType.hwndHelp;
 996     DWORD dwStyles = WS_CHILDWINDOW | WS_VISIBLE | WS_CLIPCHILDREN;
 997     DWORD dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR | WS_EX_CLIENTEDGE;
 998     RECT rc;
 999
1000     HP_GetHTMLRect(pHHInfo, &rc);
1001
1002     hWnd = CreateWindowExW(dwExStyles, szChildClass, szEmpty, dwStyles,
1003                            rc.left, rc.top, rc.right, rc.bottom,
1004                            hwndParent, NULL, hhctrl_hinstance, NULL);
1005     if (!hWnd)
1006         return FALSE;
1007
1008     if (!InitWebBrowser(pHHInfo, hWnd))
1009         return FALSE;
1010
1011     /* store the pointer to the HH info struct */
1012     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)pHHInfo);
1013
1014     ShowWindow(hWnd, SW_SHOW);
1015     UpdateWindow(hWnd);
1016
1017     pHHInfo->WinType.hwndHTML = hWnd;
1018     return TRUE;
1019 }
1020
1021 static BOOL AddContentTab(HHInfo *info)
1022 {
1023     if(info->tabs[TAB_CONTENTS].id == -1)
1024         return TRUE; /* No "Contents" tab */
1025     info->tabs[TAB_CONTENTS].hwnd = CreateWindowExW(WS_EX_CLIENTEDGE, WC_TREEVIEWW,
1026            szEmpty, WS_CHILD | WS_BORDER | 0x25, 50, 50, 100, 100,
1027            info->WinType.hwndNavigation, NULL, hhctrl_hinstance, NULL);
1028     if(!info->tabs[TAB_CONTENTS].hwnd) {
1029         ERR("Could not create treeview control\n");
1030         return FALSE;
1031     }
1032
1033     ResizeTabChild(info, TAB_CONTENTS);
1034     ShowWindow(info->tabs[TAB_CONTENTS].hwnd, SW_SHOW);
1035
1036     return TRUE;
1037 }
1038
1039 static BOOL AddIndexTab(HHInfo *info)
1040 {
1041     char hidden_column[] = "Column";
1042     LVCOLUMNA lvc;
1043
1044     if(info->tabs[TAB_INDEX].id == -1)
1045         return TRUE; /* No "Index" tab */
1046     info->tabs[TAB_INDEX].hwnd = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW,
1047            szEmpty, WS_CHILD | WS_BORDER | LVS_SINGLESEL | LVS_REPORT | LVS_NOCOLUMNHEADER, 50, 50, 100, 100,
1048            info->WinType.hwndNavigation, NULL, hhctrl_hinstance, NULL);
1049     if(!info->tabs[TAB_INDEX].hwnd) {
1050         ERR("Could not create ListView control\n");
1051         return FALSE;
1052     }
1053     memset(&lvc, 0, sizeof(lvc));
1054     lvc.mask = LVCF_TEXT;
1055     lvc.pszText = hidden_column;
1056     if(SendMessageW(info->tabs[TAB_INDEX].hwnd, LVM_INSERTCOLUMNA, 0, (LPARAM) &lvc) == -1)
1057     {
1058         ERR("Could not create ListView column\n");
1059         return FALSE;
1060     }
1061
1062     ResizeTabChild(info, TAB_INDEX);
1063     ShowWindow(info->tabs[TAB_INDEX].hwnd, SW_HIDE);
1064
1065     return TRUE;
1066 }
1067
1068 static BOOL AddSearchTab(HHInfo *info)
1069 {
1070     HWND hwndList, hwndEdit, hwndContainer;
1071     char hidden_column[] = "Column";
1072     WNDPROC editWndProc;
1073     LVCOLUMNA lvc;
1074
1075     if(info->tabs[TAB_SEARCH].id == -1)
1076         return TRUE; /* No "Search" tab */
1077     hwndContainer = CreateWindowExW(WS_EX_CONTROLPARENT, szChildClass, szEmpty,
1078                                     WS_CHILD, 0, 0, 0, 0, info->WinType.hwndNavigation,
1079                                     NULL, hhctrl_hinstance, NULL);
1080     if(!hwndContainer) {
1081         ERR("Could not create search window container control.\n");
1082         return FALSE;
1083     }
1084     hwndEdit = CreateWindowExW(WS_EX_CLIENTEDGE, WC_EDITW, szEmpty, WS_CHILD
1085                                 | WS_VISIBLE | ES_LEFT | SS_NOTIFY, 0, 0, 0, 0,
1086                                hwndContainer, NULL, hhctrl_hinstance, NULL);
1087     if(!hwndEdit) {
1088         ERR("Could not create search ListView control.\n");
1089         return FALSE;
1090     }
1091     if(SendMessageW(hwndEdit, WM_SETFONT, (WPARAM) info->hFont, (LPARAM) FALSE) == -1)
1092     {
1093         ERR("Could not set font for edit control.\n");
1094         return FALSE;
1095     }
1096     editWndProc = (WNDPROC) SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC, (LONG_PTR)EditChild_WndProc);
1097     if(!editWndProc) {
1098         ERR("Could not redirect messages for edit control.\n");
1099         return FALSE;
1100     }
1101     SetWindowLongPtrW(hwndEdit, GWLP_USERDATA, (LONG_PTR)editWndProc);
1102     hwndList = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW, szEmpty,
1103                                WS_CHILD | WS_VISIBLE | WS_BORDER | LVS_SINGLESEL
1104                                 | LVS_REPORT | LVS_NOCOLUMNHEADER, 0, 0, 0, 0,
1105                                hwndContainer, NULL, hhctrl_hinstance, NULL);
1106     if(!hwndList) {
1107         ERR("Could not create search ListView control.\n");
1108         return FALSE;
1109     }
1110     memset(&lvc, 0, sizeof(lvc));
1111     lvc.mask = LVCF_TEXT;
1112     lvc.pszText = hidden_column;
1113     if(SendMessageW(hwndList, LVM_INSERTCOLUMNA, 0, (LPARAM) &lvc) == -1)
1114     {
1115         ERR("Could not create ListView column\n");
1116         return FALSE;
1117     }
1118
1119     info->search.hwndEdit = hwndEdit;
1120     info->search.hwndList = hwndList;
1121     info->search.hwndContainer = hwndContainer;
1122     info->tabs[TAB_SEARCH].hwnd = hwndContainer;
1123
1124     SetWindowLongPtrW(hwndContainer, GWLP_USERDATA, (LONG_PTR)info);
1125
1126     ResizeTabChild(info, TAB_SEARCH);
1127
1128     return TRUE;
1129 }
1130
1131 /* The Index tab's sub-topic popup */
1132
1133 static void ResizePopupChild(HHInfo *info)
1134 {
1135     int scroll_width = GetSystemMetrics(SM_CXVSCROLL);
1136     int border_width = GetSystemMetrics(SM_CXBORDER);
1137     int edge_width = GetSystemMetrics(SM_CXEDGE);
1138     INT width, height;
1139     RECT rect;
1140
1141     if(!info)
1142         return;
1143
1144     GetClientRect(info->popup.hwndPopup, &rect);
1145     SetWindowPos(info->popup.hwndCallback, HWND_TOP, 0, 0,
1146                  rect.right, rect.bottom, SWP_NOMOVE);
1147
1148     rect.left = TAB_MARGIN;
1149     rect.top = TAB_TOP_PADDING + TAB_MARGIN;
1150     rect.right -= TAB_RIGHT_PADDING + TAB_MARGIN;
1151     rect.bottom -= TAB_MARGIN;
1152     width = rect.right-rect.left;
1153     height = rect.bottom-rect.top;
1154
1155     SetWindowPos(info->popup.hwndList, NULL, rect.left, rect.top, width, height,
1156                  SWP_NOZORDER | SWP_NOACTIVATE);
1157
1158     SendMessageW(info->popup.hwndList, LVM_SETCOLUMNWIDTH, 0,
1159                  width-scroll_width-2*border_width-2*edge_width);
1160 }
1161
1162 static LRESULT CALLBACK HelpPopup_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
1163 {
1164     HHInfo *info = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
1165
1166     switch (message)
1167     {
1168     case WM_SIZE:
1169         ResizePopupChild(info);
1170         return 0;
1171     case WM_DESTROY:
1172         DestroyWindow(hWnd);
1173         return 0;
1174     case WM_CLOSE:
1175         ShowWindow(hWnd, SW_HIDE);
1176         return 0;
1177
1178     default:
1179         return DefWindowProcW(hWnd, message, wParam, lParam);
1180     }
1181
1182     return 0;
1183 }
1184
1185 static LRESULT CALLBACK PopupChild_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
1186 {
1187     switch (message)
1188     {
1189     case WM_NOTIFY: {
1190         NMHDR *nmhdr = (NMHDR*)lParam;
1191         switch(nmhdr->code)
1192         {
1193         case NM_DBLCLK: {
1194             HHInfo *info = (HHInfo*)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
1195             IndexSubItem *iter;
1196
1197             if(info == 0 || lParam == 0)
1198                 return 0;
1199             iter = (IndexSubItem*) ((NMITEMACTIVATE *)lParam)->lParam;
1200             if(iter == 0)
1201                 return 0;
1202             NavigateToChm(info, info->index->merge.chm_file, iter->local);
1203             ShowWindow(info->popup.hwndPopup, SW_HIDE);
1204             return 0;
1205         }
1206         case NM_RETURN: {
1207             HHInfo *info = (HHInfo*)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
1208             IndexSubItem *iter;
1209             LVITEMW lvItem;
1210
1211             if(info == 0)
1212                 return 0;
1213
1214             lvItem.iItem = (int) SendMessageW(info->popup.hwndList, LVM_GETSELECTIONMARK, 0, 0);
1215             lvItem.mask = TVIF_PARAM;
1216             SendMessageW(info->popup.hwndList, LVM_GETITEMW, 0, (LPARAM)&lvItem);
1217             iter = (IndexSubItem*) lvItem.lParam;
1218             NavigateToChm(info, info->index->merge.chm_file, iter->local);
1219             ShowWindow(info->popup.hwndPopup, SW_HIDE);
1220             return 0;
1221         }
1222         }
1223         break;
1224     }
1225     default:
1226         return DefWindowProcW(hWnd, message, wParam, lParam);
1227     }
1228
1229     return 0;
1230 }
1231
1232 static BOOL AddIndexPopup(HHInfo *info)
1233 {
1234     static const WCHAR szPopupChildClass[] = {'H','H',' ','P','o','p','u','p',' ','C','h','i','l','d',0};
1235     static const WCHAR windowCaptionW[] = {'S','e','l','e','c','t',' ','T','o','p','i','c',':',0};
1236     static const WCHAR windowClassW[] = {'H','H',' ','P','o','p','u','p',0};
1237     HWND hwndList, hwndPopup, hwndCallback;
1238     char hidden_column[] = "Column";
1239     WNDCLASSEXW wcex;
1240     LVCOLUMNA lvc;
1241
1242     if(info->tabs[TAB_INDEX].id == -1)
1243         return TRUE; /* No "Index" tab */
1244
1245     wcex.cbSize         = sizeof(WNDCLASSEXW);
1246     wcex.style          = CS_HREDRAW | CS_VREDRAW;
1247     wcex.lpfnWndProc    = HelpPopup_WndProc;
1248     wcex.cbClsExtra     = 0;
1249     wcex.cbWndExtra     = 0;
1250     wcex.hInstance      = hhctrl_hinstance;
1251     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1252     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
1253     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
1254     wcex.lpszMenuName   = NULL;
1255     wcex.lpszClassName  = windowClassW;
1256     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1257     RegisterClassExW(&wcex);
1258
1259     wcex.cbSize         = sizeof(WNDCLASSEXW);
1260     wcex.style          = 0;
1261     wcex.lpfnWndProc    = PopupChild_WndProc;
1262     wcex.cbClsExtra     = 0;
1263     wcex.cbWndExtra     = 0;
1264     wcex.hInstance      = hhctrl_hinstance;
1265     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1266     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
1267     wcex.hbrBackground  = (HBRUSH)(COLOR_BTNFACE + 1);
1268     wcex.lpszMenuName   = NULL;
1269     wcex.lpszClassName  = szPopupChildClass;
1270     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1271     RegisterClassExW(&wcex);
1272
1273     hwndPopup = CreateWindowExW(WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_APPWINDOW
1274                                  | WS_EX_WINDOWEDGE | WS_EX_RIGHTSCROLLBAR,
1275                                 windowClassW, windowCaptionW, WS_POPUPWINDOW
1276                                  | WS_OVERLAPPEDWINDOW | WS_VISIBLE
1277                                  | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, CW_USEDEFAULT,
1278                                 CW_USEDEFAULT, 300, 200, info->WinType.hwndHelp,
1279                                 NULL, hhctrl_hinstance, NULL);
1280     if (!hwndPopup)
1281         return FALSE;
1282
1283     hwndCallback = CreateWindowExW(WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR,
1284                                    szPopupChildClass, szEmpty, WS_CHILDWINDOW | WS_VISIBLE,
1285                                    0, 0, 0, 0,
1286                                    hwndPopup, NULL, hhctrl_hinstance, NULL);
1287     if (!hwndCallback)
1288         return FALSE;
1289
1290     ShowWindow(hwndPopup, SW_HIDE);
1291     hwndList = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW, szEmpty,
1292                                WS_CHILD | WS_BORDER | LVS_SINGLESEL | LVS_REPORT
1293                                 | LVS_NOCOLUMNHEADER, 50, 50, 100, 100,
1294                                hwndCallback, NULL, hhctrl_hinstance, NULL);
1295     if(!hwndList) {
1296         ERR("Could not create popup ListView control\n");
1297         return FALSE;
1298     }
1299     memset(&lvc, 0, sizeof(lvc));
1300     lvc.mask = LVCF_TEXT;
1301     lvc.pszText = hidden_column;
1302     if(SendMessageW(hwndList, LVM_INSERTCOLUMNA, 0, (LPARAM) &lvc) == -1)
1303     {
1304         ERR("Could not create popup ListView column\n");
1305         return FALSE;
1306     }
1307
1308     info->popup.hwndCallback = hwndCallback;
1309     info->popup.hwndPopup = hwndPopup;
1310     info->popup.hwndList = hwndList;
1311     SetWindowLongPtrW(hwndPopup, GWLP_USERDATA, (LONG_PTR)info);
1312     SetWindowLongPtrW(hwndCallback, GWLP_USERDATA, (LONG_PTR)info);
1313
1314     ResizePopupChild(info);
1315     ShowWindow(hwndList, SW_SHOW);
1316
1317     return TRUE;
1318 }
1319
1320 /* Viewer Window */
1321
1322 static void ExpandContract(HHInfo *pHHInfo)
1323 {
1324     RECT r, nav;
1325
1326     pHHInfo->WinType.fNotExpanded = !pHHInfo->WinType.fNotExpanded;
1327     GetWindowRect(pHHInfo->WinType.hwndHelp, &r);
1328     NP_GetNavigationRect(pHHInfo, &nav);
1329
1330     /* hide/show both the nav bar and the size bar */
1331     if (pHHInfo->WinType.fNotExpanded)
1332     {
1333         ShowWindow(pHHInfo->WinType.hwndNavigation, SW_HIDE);
1334         ShowWindow(pHHInfo->hwndSizeBar, SW_HIDE);
1335         r.left = r.left + nav.right;
1336
1337         SendMessageW(pHHInfo->WinType.hwndToolBar, TB_HIDEBUTTON, IDTB_EXPAND, MAKELPARAM(FALSE, 0));
1338         SendMessageW(pHHInfo->WinType.hwndToolBar, TB_HIDEBUTTON, IDTB_CONTRACT, MAKELPARAM(TRUE, 0));
1339     }
1340     else
1341     {
1342         ShowWindow(pHHInfo->WinType.hwndNavigation, SW_SHOW);
1343         ShowWindow(pHHInfo->hwndSizeBar, SW_SHOW);
1344         r.left = r.left - nav.right;
1345
1346         SendMessageW(pHHInfo->WinType.hwndToolBar, TB_HIDEBUTTON, IDTB_EXPAND, MAKELPARAM(TRUE, 0));
1347         SendMessageW(pHHInfo->WinType.hwndToolBar, TB_HIDEBUTTON, IDTB_CONTRACT, MAKELPARAM(FALSE, 0));
1348     }
1349
1350     MoveWindow(pHHInfo->WinType.hwndHelp, r.left, r.top, r.right-r.left, r.bottom-r.top, TRUE);
1351 }
1352
1353 static LRESULT Help_OnSize(HWND hWnd)
1354 {
1355     HHInfo *pHHInfo = (HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
1356     DWORD dwSize;
1357     RECT rc;
1358
1359     if (!pHHInfo)
1360         return 0;
1361
1362     if (!pHHInfo->WinType.fNotExpanded)
1363     {
1364         NP_GetNavigationRect(pHHInfo, &rc);
1365         SetWindowPos(pHHInfo->WinType.hwndNavigation, HWND_TOP, 0, 0,
1366                      rc.right, rc.bottom, SWP_NOMOVE);
1367
1368         SB_GetSizeBarRect(pHHInfo, &rc);
1369         SetWindowPos(pHHInfo->hwndSizeBar, HWND_TOP, rc.left, rc.top,
1370                      rc.right, rc.bottom, SWP_SHOWWINDOW);
1371
1372     }
1373
1374     HP_GetHTMLRect(pHHInfo, &rc);
1375     SetWindowPos(pHHInfo->WinType.hwndHTML, HWND_TOP, rc.left, rc.top,
1376                  rc.right, rc.bottom, SWP_SHOWWINDOW);
1377
1378     /* Resize browser window taking the frame size into account */
1379     dwSize = GetSystemMetrics(SM_CXFRAME);
1380     ResizeWebBrowser(pHHInfo, rc.right - dwSize, rc.bottom - dwSize);
1381
1382     return 0;
1383 }
1384
1385 static LRESULT CALLBACK Help_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
1386 {
1387     switch (message)
1388     {
1389     case WM_COMMAND:
1390         if (HIWORD(wParam) == BN_CLICKED)
1391             TB_OnClick(hWnd, LOWORD(wParam));
1392         break;
1393     case WM_SIZE:
1394         return Help_OnSize(hWnd);
1395     case WM_CLOSE:
1396         ReleaseHelpViewer((HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA));
1397         return 0;
1398     case WM_DESTROY:
1399         if(hh_process)
1400             PostQuitMessage(0);
1401         break;
1402
1403     default:
1404         return DefWindowProcW(hWnd, message, wParam, lParam);
1405     }
1406
1407     return 0;
1408 }
1409
1410 static BOOL HH_CreateHelpWindow(HHInfo *info)
1411 {
1412     HWND hWnd;
1413     RECT winPos = info->WinType.rcWindowPos;
1414     WNDCLASSEXW wcex;
1415     DWORD dwStyles, dwExStyles;
1416     DWORD x, y, width = 0, height = 0;
1417     LPCWSTR caption;
1418
1419     static const WCHAR windowClassW[] = {
1420         'H','H',' ', 'P','a','r','e','n','t',0
1421     };
1422
1423     wcex.cbSize         = sizeof(WNDCLASSEXW);
1424     wcex.style          = CS_HREDRAW | CS_VREDRAW;
1425     wcex.lpfnWndProc    = Help_WndProc;
1426     wcex.cbClsExtra     = 0;
1427     wcex.cbWndExtra     = 0;
1428     wcex.hInstance      = hhctrl_hinstance;
1429     wcex.hIcon          = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1430     wcex.hCursor        = LoadCursorW(NULL, (LPCWSTR)IDC_ARROW);
1431     wcex.hbrBackground  = (HBRUSH)(COLOR_MENU + 1);
1432     wcex.lpszMenuName   = NULL;
1433     wcex.lpszClassName  = windowClassW;
1434     wcex.hIconSm        = LoadIconW(NULL, (LPCWSTR)IDI_APPLICATION);
1435
1436     RegisterClassExW(&wcex);
1437
1438     /* Read in window parameters if available */
1439     if (info->WinType.fsValidMembers & HHWIN_PARAM_STYLES)
1440         dwStyles = info->WinType.dwStyles | WS_OVERLAPPEDWINDOW;
1441     else
1442         dwStyles = WS_OVERLAPPEDWINDOW | WS_VISIBLE |
1443                    WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
1444
1445     if (info->WinType.fsValidMembers & HHWIN_PARAM_EXSTYLES)
1446         dwExStyles = info->WinType.dwExStyles;
1447     else
1448         dwExStyles = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_APPWINDOW |
1449                      WS_EX_WINDOWEDGE | WS_EX_RIGHTSCROLLBAR;
1450
1451     if (info->WinType.fsValidMembers & HHWIN_PARAM_RECT)
1452     {
1453         x = winPos.left;
1454         y = winPos.top;
1455         width = winPos.right - x;
1456         height = winPos.bottom - y;
1457     }
1458     if (!width || !height)
1459     {
1460         x = WINTYPE_DEFAULT_X;
1461         y = WINTYPE_DEFAULT_Y;
1462         width = WINTYPE_DEFAULT_WIDTH;
1463         height = WINTYPE_DEFAULT_HEIGHT;
1464     }
1465
1466     if (info->WinType.fNotExpanded)
1467     {
1468         if (!(info->WinType.fsValidMembers & HHWIN_PARAM_NAV_WIDTH) &&
1469               info->WinType.iNavWidth == 0)
1470         {
1471             info->WinType.iNavWidth = WINTYPE_DEFAULT_NAVWIDTH;
1472         }
1473
1474         x += info->WinType.iNavWidth;
1475         width -= info->WinType.iNavWidth;
1476     }
1477
1478
1479     caption = info->WinType.pszCaption;
1480     if (!*caption) caption = info->pCHMInfo->defTitle;
1481
1482     hWnd = CreateWindowExW(dwExStyles, windowClassW, caption,
1483                            dwStyles, x, y, width, height, NULL, NULL, hhctrl_hinstance, NULL);
1484     if (!hWnd)
1485         return FALSE;
1486
1487     ShowWindow(hWnd, SW_SHOW);
1488     UpdateWindow(hWnd);
1489
1490     /* store the pointer to the HH info struct */
1491     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)info);
1492
1493     info->WinType.hwndHelp = hWnd;
1494     return TRUE;
1495 }
1496
1497 static void HH_CreateFont(HHInfo *pHHInfo)
1498 {
1499     LOGFONTW lf;
1500
1501     GetObjectW(GetStockObject(ANSI_VAR_FONT), sizeof(LOGFONTW), &lf);
1502     lf.lfWeight = FW_NORMAL;
1503     lf.lfItalic = FALSE;
1504     lf.lfUnderline = FALSE;
1505
1506     pHHInfo->hFont = CreateFontIndirectW(&lf);
1507 }
1508
1509 static void HH_InitRequiredControls(DWORD dwControls)
1510 {
1511     INITCOMMONCONTROLSEX icex;
1512
1513     icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
1514     icex.dwICC = dwControls;
1515     InitCommonControlsEx(&icex);
1516 }
1517
1518 /* Creates the whole package */
1519 static BOOL CreateViewer(HHInfo *pHHInfo)
1520 {
1521     HH_CreateFont(pHHInfo);
1522
1523     if (!HH_CreateHelpWindow(pHHInfo))
1524         return FALSE;
1525
1526     HH_InitRequiredControls(ICC_BAR_CLASSES);
1527
1528     if (!HH_AddToolbar(pHHInfo))
1529         return FALSE;
1530
1531     HH_RegisterChildWndClass(pHHInfo);
1532
1533     if (!HH_AddNavigationPane(pHHInfo))
1534         return FALSE;
1535
1536     HH_RegisterSizeBarClass(pHHInfo);
1537
1538     if (!HH_AddSizeBar(pHHInfo))
1539         return FALSE;
1540
1541     if (!HH_AddHTMLPane(pHHInfo))
1542         return FALSE;
1543
1544     if (!AddContentTab(pHHInfo))
1545         return FALSE;
1546
1547     if (!AddIndexTab(pHHInfo))
1548         return FALSE;
1549
1550     if (!AddIndexPopup(pHHInfo))
1551         return FALSE;
1552
1553     if (!AddSearchTab(pHHInfo))
1554         return FALSE;
1555
1556     InitContent(pHHInfo);
1557     InitIndex(pHHInfo);
1558
1559     return TRUE;
1560 }
1561
1562 void ReleaseHelpViewer(HHInfo *info)
1563 {
1564     TRACE("(%p)\n", info);
1565
1566     if (!info)
1567         return;
1568
1569     /* Free allocated strings */
1570     heap_free(info->pszType);
1571     heap_free(info->pszCaption);
1572     heap_free(info->pszToc);
1573     heap_free(info->pszIndex);
1574     heap_free(info->pszFile);
1575     heap_free(info->pszHome);
1576     heap_free(info->pszJump1);
1577     heap_free(info->pszJump2);
1578     heap_free(info->pszUrlJump1);
1579     heap_free(info->pszUrlJump2);
1580
1581     if (info->pCHMInfo)
1582         CloseCHM(info->pCHMInfo);
1583
1584     ReleaseWebBrowser(info);
1585     ReleaseContent(info);
1586     ReleaseIndex(info);
1587     ReleaseSearch(info);
1588
1589     if(info->WinType.hwndHelp)
1590         DestroyWindow(info->WinType.hwndHelp);
1591
1592     heap_free(info);
1593     OleUninitialize();
1594 }
1595
1596 HHInfo *CreateHelpViewer(LPCWSTR filename)
1597 {
1598     HHInfo *info = heap_alloc_zero(sizeof(HHInfo));
1599     int i;
1600
1601     /* Set the invalid tab ID (-1) as the default value for all
1602      * of the tabs, this matches a failed TCM_INSERTITEM call.
1603      */
1604     for(i=0;i<sizeof(info->tabs)/sizeof(HHTab);i++)
1605         info->tabs[i].id = -1;
1606
1607     OleInitialize(NULL);
1608
1609     info->pCHMInfo = OpenCHM(filename);
1610     if(!info->pCHMInfo) {
1611         ReleaseHelpViewer(info);
1612         return NULL;
1613     }
1614
1615     if (!LoadWinTypeFromCHM(info)) {
1616         ReleaseHelpViewer(info);
1617         return NULL;
1618     }
1619
1620     if(!CreateViewer(info)) {
1621         ReleaseHelpViewer(info);
1622         return NULL;
1623     }
1624
1625     return info;
1626 }