src/html/htmlwin.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        htmlwin.cpp
   3 // Purpose:     wxHtmlWindow class for parsing & displaying HTML (implementation)
   4 // Author:      Vaclav Slavik
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1999 Vaclav Slavik
   7 // Licence:     wxWindows Licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "htmlwin.h"
  13 #pragma implementation "htmlproc.h"
  14 #endif
  15
  16 #include "wx/wxprec.h"
  17
  18 #include "wx/defs.h"
  19 #if wxUSE_HTML && wxUSE_STREAMS
  20
  21 #ifdef __BORDLANDC__
  22 #pragma hdrstop
  23 #endif
  24
  25 #ifndef WXPRECOMP
  26     #include "wx/log.h"
  27     #include "wx/intl.h"
  28     #include "wx/dcclient.h"
  29     #include "wx/frame.h"
  30 #endif
  31
  32 #include "wx/html/htmlwin.h"
  33 #include "wx/html/htmlproc.h"
  34 #include "wx/list.h"
  35
  36 #include "wx/arrimpl.cpp"
  37 #include "wx/listimpl.cpp"
  38
  39 //-----------------------------------------------------------------------------
  40 // wxHtmlHistoryItem
  41 //-----------------------------------------------------------------------------
  42
  43 // item of history list
  44 class WXDLLEXPORT wxHtmlHistoryItem : public wxObject
  45 {
  46 public:
  47     wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
  48     int GetPos() const {return m_Pos;}
  49     void SetPos(int p) {m_Pos = p;}
  50     const wxString& GetPage() const {return m_Page;}
  51     const wxString& GetAnchor() const {return m_Anchor;}
  52
  53 private:
  54     wxString m_Page;
  55     wxString m_Anchor;
  56     int m_Pos;
  57 };
  58
  59
  60 //-----------------------------------------------------------------------------
  61 // our private arrays:
  62 //-----------------------------------------------------------------------------
  63
  64 WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
  65 WX_DEFINE_OBJARRAY(wxHtmlHistoryArray);
  66
  67 WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
  68 WX_DEFINE_LIST(wxHtmlProcessorList);
  69
  70 //-----------------------------------------------------------------------------
  71 // wxHtmlWindow
  72 //-----------------------------------------------------------------------------
  73
  74
  75 wxHtmlWindow::wxHtmlWindow(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size,
  76                 long style, const wxString& name) : wxScrolledWindow(parent, id, pos, size, style | wxVSCROLL | wxHSCROLL, name)
  77 {
  78     m_tmpMouseMoved = FALSE;
  79     m_tmpLastLink = NULL;
  80     m_tmpLastCell = NULL;
  81     m_tmpCanDrawLocks = 0;
  82     m_FS = new wxFileSystem();
  83     m_RelatedStatusBar = -1;
  84     m_RelatedFrame = NULL;
  85     m_TitleFormat = wxT("%s");
  86     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
  87     m_Cell = NULL;
  88     m_Parser = new wxHtmlWinParser(this);
  89     m_Parser->SetFS(m_FS);
  90     SetBorders(10);
  91     m_HistoryPos = -1;
  92     m_HistoryOn = TRUE;
  93     m_History = new wxHtmlHistoryArray;
  94     m_Processors = NULL;
  95     m_Style = style;
  96     SetPage(wxT("<html><body></body></html>"));
  97 }
  98
  99
 100
 101 wxHtmlWindow::~wxHtmlWindow()
 102 {
 103     HistoryClear();
 104
 105     if (m_Cell) delete m_Cell;
 106
 107     delete m_Parser;
 108     delete m_FS;
 109     delete m_History;
 110     delete m_Processors;
 111 }
 112
 113
 114
 115 void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
 116 {
 117     m_RelatedFrame = frame;
 118     m_TitleFormat = format;
 119 }
 120
 121
 122
 123 void wxHtmlWindow::SetRelatedStatusBar(int bar)
 124 {
 125     m_RelatedStatusBar = bar;
 126 }
 127
 128
 129
 130 void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes)
 131 {
 132     wxString op = m_OpenedPage;
 133
 134     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 135     // fonts changed => contents invalid, so reload the page:
 136     SetPage(wxT("<html><body></body></html>"));
 137     if (!op.IsEmpty()) LoadPage(op);
 138 }
 139
 140
 141
 142 bool wxHtmlWindow::SetPage(const wxString& source)
 143 {
 144     wxString newsrc(source);
 145
 146     // pass HTML through registered processors:
 147     if (m_Processors || m_GlobalProcessors)
 148     {
 149         wxHtmlProcessorList::Node *nodeL, *nodeG;
 150         int prL, prG;
 151
 152         nodeL = (m_Processors) ? m_Processors->GetFirst() : NULL;
 153         nodeG = (m_GlobalProcessors) ? m_GlobalProcessors->GetFirst() : NULL;
 154
 155         // VS: there are two lists, global and local, both of them sorted by
 156         //     priority. Since we have to go through _both_ lists with
 157         //     decreasing priority, we "merge-sort" the lists on-line by
 158         //     processing that one of the two heads that has higher priority
 159         //     in every iteration
 160         while (nodeL || nodeG)
 161         {
 162             prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
 163             prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
 164             if (prL > prG)
 165             {
 166                 if (nodeL->GetData()->IsEnabled())
 167                     newsrc = nodeL->GetData()->Process(newsrc);
 168                 nodeL = nodeL->GetNext();
 169             }
 170             else // prL <= prG
 171             {
 172                 if (nodeG->GetData()->IsEnabled())
 173                     newsrc = nodeG->GetData()->Process(newsrc);
 174                 nodeG = nodeG->GetNext();
 175             }
 176         }
 177     }
 178
 179     // ...and run the parser on it:
 180     wxClientDC *dc = new wxClientDC(this);
 181     dc->SetMapMode(wxMM_TEXT);
 182     SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
 183     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 184     m_Parser->SetDC(dc);
 185     if (m_Cell)
 186     {
 187         delete m_Cell;
 188         m_Cell = NULL;
 189     }
 190     m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
 191     delete dc;
 192     m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 193     m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
 194     CreateLayout();
 195     if (m_tmpCanDrawLocks == 0)
 196         Refresh();
 197     return TRUE;
 198 }
 199
 200
 201 bool wxHtmlWindow::LoadPage(const wxString& location)
 202 {
 203     wxFSFile *f;
 204     bool rt_val;
 205     bool needs_refresh = FALSE;
 206
 207     SetCursor(*wxHOURGLASS_CURSOR);
 208     wxYield(); Refresh(FALSE);
 209
 210     m_tmpCanDrawLocks++;
 211     if (m_HistoryOn && (m_HistoryPos != -1))
 212     {
 213         // store scroll position into history item:
 214         int x, y;
 215         GetViewStart(&x, &y);
 216         (*m_History)[m_HistoryPos].SetPos(y);
 217     }
 218
 219     if (location[0] == wxT('#'))
 220     {
 221         // local anchor:
 222         wxString anch = location.Mid(1) /*1 to end*/;
 223         m_tmpCanDrawLocks--;
 224         rt_val = ScrollToAnchor(anch);
 225         m_tmpCanDrawLocks++;
 226     }
 227     else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
 228     {
 229         wxString anch = location.AfterFirst(wxT('#'));
 230         m_tmpCanDrawLocks--;
 231         rt_val = ScrollToAnchor(anch);
 232         m_tmpCanDrawLocks++;
 233     }
 234     else if (location.Find(wxT('#')) != wxNOT_FOUND &&
 235              (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
 236     {
 237         wxString anch = location.AfterFirst(wxT('#'));
 238         m_tmpCanDrawLocks--;
 239         rt_val = ScrollToAnchor(anch);
 240         m_tmpCanDrawLocks++;
 241     }
 242
 243     else
 244     {
 245         needs_refresh = TRUE;
 246         // load&display it:
 247         if (m_RelatedStatusBar != -1)
 248         {
 249             m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
 250             Refresh(FALSE);
 251         }
 252
 253         f = m_FS->OpenFile(location);
 254
 255         if (f == NULL)
 256         {
 257             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 258             m_tmpCanDrawLocks--;
 259
 260             SetCursor(*wxSTANDARD_CURSOR);
 261             return FALSE;
 262         }
 263
 264         else
 265         {
 266             wxNode *node;
 267             wxString src = wxEmptyString;
 268
 269             if (m_RelatedStatusBar != -1)
 270             {
 271                 wxString msg = _("Loading : ") + location;
 272                 m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
 273                 Refresh(FALSE);
 274             }
 275
 276             node = m_Filters.GetFirst();
 277             while (node)
 278             {
 279                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 280                 if (h->CanRead(*f))
 281                 {
 282                     src = h->ReadFile(*f);
 283                     break;
 284                 }
 285                 node = node->GetNext();
 286             }
 287             if (src == wxEmptyString)
 288             {
 289                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 290                 src = m_DefaultFilter->ReadFile(*f);
 291             }
 292
 293             m_FS->ChangePathTo(f->GetLocation());
 294             rt_val = SetPage(src);
 295             m_OpenedPage = f->GetLocation();
 296             if (f->GetAnchor() != wxEmptyString)
 297             {
 298                 wxYield();
 299                 ScrollToAnchor(f->GetAnchor());
 300             }
 301
 302             delete f;
 303
 304             if (m_RelatedStatusBar != -1) m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
 305         }
 306     }
 307
 308     if (m_HistoryOn) // add this page to history there:
 309     {
 310         int c = m_History->GetCount() - (m_HistoryPos + 1);
 311
 312         if (m_HistoryPos < 0 ||
 313             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 314             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 315         {
 316             m_HistoryPos++;
 317             for (int i = 0; i < c; i++)
 318                 m_History->RemoveAt(m_HistoryPos);
 319             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 320         }
 321     }
 322
 323     if (m_OpenedPageTitle == wxEmptyString)
 324         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 325     SetCursor(*wxSTANDARD_CURSOR);
 326
 327     if (needs_refresh)
 328     {
 329         wxYield();
 330         m_tmpCanDrawLocks--;
 331         Refresh();
 332     }
 333     else
 334         m_tmpCanDrawLocks--;
 335
 336     return rt_val;
 337 }
 338
 339
 340
 341 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 342 {
 343     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 344     if (!c)
 345     {
 346         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 347         return FALSE;
 348     }
 349     else
 350     {
 351         int y;
 352
 353         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 354         Scroll(-1, y / wxHTML_SCROLL_STEP);
 355         m_OpenedAnchor = anchor;
 356         return TRUE;
 357     }
 358 }
 359
 360
 361 void wxHtmlWindow::OnSetTitle(const wxString& title)
 362 {
 363     if (m_RelatedFrame)
 364     {
 365         wxString tit;
 366         tit.Printf(m_TitleFormat, title.c_str());
 367         m_RelatedFrame->SetTitle(tit);
 368     }
 369     m_OpenedPageTitle = title;
 370 }
 371
 372
 373
 374
 375
 376 void wxHtmlWindow::CreateLayout()
 377 {
 378     int ClientWidth, ClientHeight;
 379
 380     if (!m_Cell) return;
 381
 382     if (m_Style & wxHW_SCROLLBAR_NEVER)
 383     {
 384         SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
 385         GetClientSize(&ClientWidth, &ClientHeight);
 386         m_Cell->Layout(ClientWidth);
 387     }
 388
 389     else {
 390         GetClientSize(&ClientWidth, &ClientHeight);
 391         m_Cell->Layout(ClientWidth);
 392         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 393         {
 394             SetScrollbars(
 395                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 396                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 397                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 398                   /*cheat: top-level frag is always container*/);
 399         }
 400         else /* we fit into window, no need for scrollbars */
 401         {
 402             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 403             GetClientSize(&ClientWidth, &ClientHeight);
 404             m_Cell->Layout(ClientWidth); // ...and relayout
 405         }
 406     }
 407 }
 408
 409
 410
 411 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 412 {
 413     wxString oldpath;
 414     wxString tmp;
 415     int p_fontsizes[7];
 416     wxString p_fff, p_ffn;
 417
 418     if (path != wxEmptyString)
 419     {
 420         oldpath = cfg->GetPath();
 421         cfg->SetPath(path);
 422     }
 423
 424     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 425     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 426     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 427     for (int i = 0; i < 7; i++)
 428     {
 429         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 430         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 431     }
 432     SetFonts(p_ffn, p_fff, p_fontsizes);
 433
 434     if (path != wxEmptyString)
 435         cfg->SetPath(oldpath);
 436 }
 437
 438
 439
 440 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 441 {
 442     wxString oldpath;
 443     wxString tmp;
 444
 445     if (path != wxEmptyString)
 446     {
 447         oldpath = cfg->GetPath();
 448         cfg->SetPath(path);
 449     }
 450
 451     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 452     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 453     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 454     for (int i = 0; i < 7; i++)
 455     {
 456         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 457         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 458     }
 459
 460     if (path != wxEmptyString)
 461         cfg->SetPath(oldpath);
 462 }
 463
 464
 465
 466 bool wxHtmlWindow::HistoryBack()
 467 {
 468     wxString a, l;
 469
 470     if (m_HistoryPos < 1) return FALSE;
 471
 472     // store scroll position into history item:
 473     int x, y;
 474     GetViewStart(&x, &y);
 475     (*m_History)[m_HistoryPos].SetPos(y);
 476
 477     // go to previous position:
 478     m_HistoryPos--;
 479
 480     l = (*m_History)[m_HistoryPos].GetPage();
 481     a = (*m_History)[m_HistoryPos].GetAnchor();
 482     m_HistoryOn = FALSE;
 483     m_tmpCanDrawLocks++;
 484     if (a == wxEmptyString) LoadPage(l);
 485     else LoadPage(l + wxT("#") + a);
 486     m_HistoryOn = TRUE;
 487     wxYield();
 488     m_tmpCanDrawLocks--;
 489     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 490     Refresh();
 491     return TRUE;
 492 }
 493
 494 bool wxHtmlWindow::HistoryCanBack()
 495 {
 496     if (m_HistoryPos < 1) return FALSE;
 497     return TRUE ;
 498 }
 499
 500
 501 bool wxHtmlWindow::HistoryForward()
 502 {
 503     wxString a, l;
 504
 505     if (m_HistoryPos == -1) return FALSE;
 506     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
 507
 508     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 509
 510     m_HistoryPos++;
 511     l = (*m_History)[m_HistoryPos].GetPage();
 512     a = (*m_History)[m_HistoryPos].GetAnchor();
 513     m_HistoryOn = FALSE;
 514     m_tmpCanDrawLocks++;
 515     if (a == wxEmptyString) LoadPage(l);
 516     else LoadPage(l + wxT("#") + a);
 517     m_HistoryOn = TRUE;
 518     wxYield();
 519     m_tmpCanDrawLocks--;
 520     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 521     Refresh();
 522     return TRUE;
 523 }
 524
 525 bool wxHtmlWindow::HistoryCanForward()
 526 {
 527     if (m_HistoryPos == -1) return FALSE;
 528     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
 529     return TRUE ;
 530 }
 531
 532
 533 void wxHtmlWindow::HistoryClear()
 534 {
 535     m_History->Empty();
 536     m_HistoryPos = -1;
 537 }
 538
 539 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 540 {
 541     if (!m_Processors)
 542     {
 543         m_Processors = new wxHtmlProcessorList;
 544         m_Processors->DeleteContents(TRUE);
 545     }
 546     wxHtmlProcessorList::Node *node;
 547
 548     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 549     {
 550         if (processor->GetPriority() > node->GetData()->GetPriority())
 551         {
 552             m_Processors->Insert(node, processor);
 553             return;
 554         }
 555     }
 556     m_Processors->Append(processor);
 557 }
 558
 559 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 560 {
 561     if (!m_GlobalProcessors)
 562     {
 563         m_GlobalProcessors = new wxHtmlProcessorList;
 564         m_GlobalProcessors->DeleteContents(TRUE);
 565     }
 566     wxHtmlProcessorList::Node *node;
 567
 568     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 569     {
 570         if (processor->GetPriority() > node->GetData()->GetPriority())
 571         {
 572             m_GlobalProcessors->Insert(node, processor);
 573             return;
 574         }
 575     }
 576     m_GlobalProcessors->Append(processor);
 577 }
 578
 579
 580
 581 wxList wxHtmlWindow::m_Filters;
 582 wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
 583 wxCursor *wxHtmlWindow::s_cur_hand = NULL;
 584 wxCursor *wxHtmlWindow::s_cur_arrow = NULL;
 585 wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
 586
 587 void wxHtmlWindow::CleanUpStatics()
 588 {
 589     delete m_DefaultFilter;
 590     m_DefaultFilter = NULL;
 591     m_Filters.DeleteContents(TRUE);
 592     m_Filters.Clear();
 593     delete m_GlobalProcessors;
 594     m_GlobalProcessors = NULL;
 595     delete s_cur_hand;
 596     delete s_cur_arrow;
 597 }
 598
 599
 600
 601 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 602 {
 603     m_Filters.Append(filter);
 604 }
 605
 606
 607
 608
 609 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 610 {
 611     LoadPage(link.GetHref());
 612 }
 613
 614 void wxHtmlWindow::OnCellClicked(wxHtmlCell *cell,
 615                                  wxCoord x, wxCoord y,
 616                                  const wxMouseEvent& event)
 617 {
 618     wxCHECK_RET( cell, _T("can't be called with NULL cell") );
 619
 620     cell->OnMouseClick(this, x, y, event);
 621 }
 622
 623 void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
 624                                     wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
 625 {
 626     // do nothing here
 627 }
 628
 629 void wxHtmlWindow::OnDraw(wxDC& dc)
 630 {
 631     int x, y;
 632     wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
 633     int v_y, v_h;
 634
 635     if (m_tmpCanDrawLocks > 0) return;
 636
 637     dc.SetMapMode(wxMM_TEXT);
 638     dc.SetBackgroundMode(wxTRANSPARENT);
 639     GetViewStart(&x, &y);
 640
 641     while (upd)
 642     {
 643         v_y = upd.GetY();
 644         v_h = upd.GetH();
 645         if (m_Cell) m_Cell->Draw(dc, 0, 0, y * wxHTML_SCROLL_STEP + v_y, y * wxHTML_SCROLL_STEP + v_h + v_y);
 646         upd++;
 647     }
 648 }
 649
 650
 651
 652
 653 void wxHtmlWindow::OnSize(wxSizeEvent& event)
 654 {
 655     wxScrolledWindow::OnSize(event);
 656     CreateLayout();
 657     Refresh();
 658 }
 659
 660
 661 void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event)
 662 {
 663     m_tmpMouseMoved = TRUE;
 664
 665     if (event.ButtonDown())
 666     {
 667         if ( m_Cell )
 668         {
 669             int sx, sy;
 670             GetViewStart(&sx, &sy);
 671             sx *= wxHTML_SCROLL_STEP;
 672             sy *= wxHTML_SCROLL_STEP;
 673
 674             wxPoint pos = event.GetPosition();
 675             pos.x += sx;
 676             pos.y += sy;
 677
 678             wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
 679
 680             // VZ: is it possible that we don't find anything at all?
 681             // VS: yes. FindCellByPos returns terminal cell and
 682             //     containers may have empty borders
 683             if ( cell )
 684                 OnCellClicked(cell, pos.x, pos.y, event);
 685         }
 686     }
 687 }
 688
 689
 690
 691 void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
 692 {
 693     if (s_cur_hand == NULL)
 694     {
 695         s_cur_hand = new wxCursor(wxCURSOR_HAND);
 696         s_cur_arrow = new wxCursor(wxCURSOR_ARROW);
 697     }
 698
 699     if (m_tmpMouseMoved && (m_Cell != NULL))
 700     {
 701         int sx, sy;
 702         GetViewStart(&sx, &sy);
 703         sx *= wxHTML_SCROLL_STEP;
 704         sy *= wxHTML_SCROLL_STEP;
 705
 706         int x, y;
 707         wxGetMousePosition(&x, &y);
 708         ScreenToClient(&x, &y);
 709         x += sx;
 710         y += sy;
 711
 712         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
 713         if ( cell != m_tmpLastCell )
 714         {
 715             wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL;
 716
 717             if (lnk != m_tmpLastLink)
 718             {
 719                 if (lnk == NULL)
 720                 {
 721                     SetCursor(*s_cur_arrow);
 722                     if (m_RelatedStatusBar != -1)
 723                         m_RelatedFrame->SetStatusText(wxEmptyString, m_RelatedStatusBar);
 724                 }
 725                 else
 726                 {
 727                     SetCursor(*s_cur_hand);
 728                     if (m_RelatedStatusBar != -1)
 729                         m_RelatedFrame->SetStatusText(lnk->GetHref(), m_RelatedStatusBar);
 730                 }
 731                 m_tmpLastLink = lnk;
 732             }
 733
 734             m_tmpLastCell = cell;
 735         }
 736         else // mouse moved but stayed in the same cell
 737         {
 738             if ( cell )
 739                 OnCellMouseHover(cell, x, y);
 740         }
 741
 742         m_tmpMouseMoved = FALSE;
 743     }
 744 }
 745
 746
 747 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
 748
 749 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
 750
 751 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
 752     EVT_SIZE(wxHtmlWindow::OnSize)
 753     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent)
 754     EVT_RIGHT_DOWN(wxHtmlWindow::OnMouseEvent)
 755     EVT_MOTION(wxHtmlWindow::OnMouseEvent)
 756     EVT_IDLE(wxHtmlWindow::OnIdle)
 757 END_EVENT_TABLE()
 758
 759
 760
 761
 762
 763 // A module to allow initialization/cleanup
 764 // without calling these functions from app.cpp or from
 765 // the user's application.
 766
 767 class wxHtmlWinModule: public wxModule
 768 {
 769 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
 770 public:
 771     wxHtmlWinModule() : wxModule() {}
 772     bool OnInit() { return TRUE; }
 773     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
 774 };
 775
 776 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
 777
 778
 779 // This hack forces the linker to always link in m_* files
 780 // (wxHTML doesn't work without handlers from these files)
 781 #include "wx/html/forcelnk.h"
 782 FORCE_WXHTML_MODULES()
 783
 784 #endif