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 void wxHtmlWindow::Init()
  76 {
  77     m_tmpMouseMoved = FALSE;
  78     m_tmpLastLink = NULL;
  79     m_tmpLastCell = NULL;
  80     m_tmpCanDrawLocks = 0;
  81     m_FS = new wxFileSystem();
  82     m_RelatedStatusBar = -1;
  83     m_RelatedFrame = NULL;
  84     m_TitleFormat = wxT("%s");
  85     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
  86     m_Cell = NULL;
  87     m_Parser = new wxHtmlWinParser(this);
  88     m_Parser->SetFS(m_FS);
  89     m_HistoryPos = -1;
  90     m_HistoryOn = TRUE;
  91     m_History = new wxHtmlHistoryArray;
  92     m_Processors = NULL;
  93     m_Style = 0;
  94     SetBorders(10);
  95 }
  96
  97 bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
  98                           const wxPoint& pos, const wxSize& size,
  99                           long style, const wxString& name)
 100 {
 101     if (!wxScrolledWindow::Create(parent, id, pos, size,
 102                                   style | wxVSCROLL | wxHSCROLL, name))
 103         return FALSE;
 104
 105     m_Style = style;
 106     SetPage(wxT("<html><body></body></html>"));
 107     return TRUE;
 108 }
 109
 110
 111 wxHtmlWindow::~wxHtmlWindow()
 112 {
 113     HistoryClear();
 114
 115     if (m_Cell) delete m_Cell;
 116
 117     delete m_Parser;
 118     delete m_FS;
 119     delete m_History;
 120     delete m_Processors;
 121 }
 122
 123
 124
 125 void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
 126 {
 127     m_RelatedFrame = frame;
 128     m_TitleFormat = format;
 129 }
 130
 131
 132
 133 void wxHtmlWindow::SetRelatedStatusBar(int bar)
 134 {
 135     m_RelatedStatusBar = bar;
 136 }
 137
 138
 139
 140 void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes)
 141 {
 142     wxString op = m_OpenedPage;
 143
 144     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 145     // fonts changed => contents invalid, so reload the page:
 146     SetPage(wxT("<html><body></body></html>"));
 147     if (!op.IsEmpty()) LoadPage(op);
 148 }
 149
 150
 151
 152 bool wxHtmlWindow::SetPage(const wxString& source)
 153 {
 154     wxString newsrc(source);
 155
 156     // pass HTML through registered processors:
 157     if (m_Processors || m_GlobalProcessors)
 158     {
 159         wxHtmlProcessorList::Node *nodeL, *nodeG;
 160         int prL, prG;
 161
 162         nodeL = (m_Processors) ? m_Processors->GetFirst() : NULL;
 163         nodeG = (m_GlobalProcessors) ? m_GlobalProcessors->GetFirst() : NULL;
 164
 165         // VS: there are two lists, global and local, both of them sorted by
 166         //     priority. Since we have to go through _both_ lists with
 167         //     decreasing priority, we "merge-sort" the lists on-line by
 168         //     processing that one of the two heads that has higher priority
 169         //     in every iteration
 170         while (nodeL || nodeG)
 171         {
 172             prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
 173             prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
 174             if (prL > prG)
 175             {
 176                 if (nodeL->GetData()->IsEnabled())
 177                     newsrc = nodeL->GetData()->Process(newsrc);
 178                 nodeL = nodeL->GetNext();
 179             }
 180             else // prL <= prG
 181             {
 182                 if (nodeG->GetData()->IsEnabled())
 183                     newsrc = nodeG->GetData()->Process(newsrc);
 184                 nodeG = nodeG->GetNext();
 185             }
 186         }
 187     }
 188
 189     // ...and run the parser on it:
 190     wxClientDC *dc = new wxClientDC(this);
 191     dc->SetMapMode(wxMM_TEXT);
 192     SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
 193     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 194     m_Parser->SetDC(dc);
 195     if (m_Cell)
 196     {
 197         delete m_Cell;
 198         m_Cell = NULL;
 199     }
 200     m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
 201     delete dc;
 202     m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 203     m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
 204     CreateLayout();
 205     if (m_tmpCanDrawLocks == 0)
 206         Refresh();
 207     return TRUE;
 208 }
 209
 210 bool wxHtmlWindow::AppendToPage(const wxString& source)
 211 {
 212     return SetPage(*(GetParser()->GetSource()) + source);
 213 }
 214
 215 bool wxHtmlWindow::LoadPage(const wxString& location)
 216 {
 217     wxBusyCursor busyCursor;
 218
 219     wxFSFile *f;
 220     bool rt_val;
 221     bool needs_refresh = FALSE;
 222
 223     m_tmpCanDrawLocks++;
 224     if (m_HistoryOn && (m_HistoryPos != -1))
 225     {
 226         // store scroll position into history item:
 227         int x, y;
 228         GetViewStart(&x, &y);
 229         (*m_History)[m_HistoryPos].SetPos(y);
 230     }
 231
 232     if (location[0] == wxT('#'))
 233     {
 234         // local anchor:
 235         wxString anch = location.Mid(1) /*1 to end*/;
 236         m_tmpCanDrawLocks--;
 237         rt_val = ScrollToAnchor(anch);
 238         m_tmpCanDrawLocks++;
 239     }
 240     else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
 241     {
 242         wxString anch = location.AfterFirst(wxT('#'));
 243         m_tmpCanDrawLocks--;
 244         rt_val = ScrollToAnchor(anch);
 245         m_tmpCanDrawLocks++;
 246     }
 247     else if (location.Find(wxT('#')) != wxNOT_FOUND &&
 248              (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
 249     {
 250         wxString anch = location.AfterFirst(wxT('#'));
 251         m_tmpCanDrawLocks--;
 252         rt_val = ScrollToAnchor(anch);
 253         m_tmpCanDrawLocks++;
 254     }
 255
 256     else
 257     {
 258         needs_refresh = TRUE;
 259         // load&display it:
 260         if (m_RelatedStatusBar != -1)
 261         {
 262             m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
 263             Refresh(FALSE);
 264         }
 265
 266         f = m_FS->OpenFile(location);
 267
 268         if (f == NULL)
 269         {
 270             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 271             m_tmpCanDrawLocks--;
 272             return FALSE;
 273         }
 274
 275         else
 276         {
 277             wxNode *node;
 278             wxString src = wxEmptyString;
 279
 280             if (m_RelatedStatusBar != -1)
 281             {
 282                 wxString msg = _("Loading : ") + location;
 283                 m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
 284                 Refresh(FALSE);
 285             }
 286
 287             node = m_Filters.GetFirst();
 288             while (node)
 289             {
 290                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 291                 if (h->CanRead(*f))
 292                 {
 293                     src = h->ReadFile(*f);
 294                     break;
 295                 }
 296                 node = node->GetNext();
 297             }
 298             if (src == wxEmptyString)
 299             {
 300                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 301                 src = m_DefaultFilter->ReadFile(*f);
 302             }
 303
 304             m_FS->ChangePathTo(f->GetLocation());
 305             rt_val = SetPage(src);
 306             m_OpenedPage = f->GetLocation();
 307             if (f->GetAnchor() != wxEmptyString)
 308             {
 309                 wxYield();
 310                 ScrollToAnchor(f->GetAnchor());
 311             }
 312
 313             delete f;
 314
 315             if (m_RelatedStatusBar != -1) m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
 316         }
 317     }
 318
 319     if (m_HistoryOn) // add this page to history there:
 320     {
 321         int c = m_History->GetCount() - (m_HistoryPos + 1);
 322
 323         if (m_HistoryPos < 0 ||
 324             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 325             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 326         {
 327             m_HistoryPos++;
 328             for (int i = 0; i < c; i++)
 329                 m_History->RemoveAt(m_HistoryPos);
 330             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 331         }
 332     }
 333
 334     if (m_OpenedPageTitle == wxEmptyString)
 335         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 336
 337     if (needs_refresh)
 338     {
 339         wxYield();
 340         m_tmpCanDrawLocks--;
 341         Refresh();
 342     }
 343     else
 344         m_tmpCanDrawLocks--;
 345
 346     return rt_val;
 347 }
 348
 349
 350
 351 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 352 {
 353     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 354     if (!c)
 355     {
 356         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 357         return FALSE;
 358     }
 359     else
 360     {
 361         int y;
 362
 363         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 364         Scroll(-1, y / wxHTML_SCROLL_STEP);
 365         m_OpenedAnchor = anchor;
 366         return TRUE;
 367     }
 368 }
 369
 370
 371 void wxHtmlWindow::OnSetTitle(const wxString& title)
 372 {
 373     if (m_RelatedFrame)
 374     {
 375         wxString tit;
 376         tit.Printf(m_TitleFormat, title.c_str());
 377         m_RelatedFrame->SetTitle(tit);
 378     }
 379     m_OpenedPageTitle = title;
 380 }
 381
 382
 383
 384
 385
 386 void wxHtmlWindow::CreateLayout()
 387 {
 388     int ClientWidth, ClientHeight;
 389
 390     if (!m_Cell) return;
 391
 392     if (m_Style & wxHW_SCROLLBAR_NEVER)
 393     {
 394         SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
 395         GetClientSize(&ClientWidth, &ClientHeight);
 396         m_Cell->Layout(ClientWidth);
 397     }
 398
 399     else {
 400         GetClientSize(&ClientWidth, &ClientHeight);
 401         m_Cell->Layout(ClientWidth);
 402         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 403         {
 404             SetScrollbars(
 405                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 406                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 407                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 408                   /*cheat: top-level frag is always container*/);
 409         }
 410         else /* we fit into window, no need for scrollbars */
 411         {
 412             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 413             GetClientSize(&ClientWidth, &ClientHeight);
 414             m_Cell->Layout(ClientWidth); // ...and relayout
 415         }
 416     }
 417 }
 418
 419
 420
 421 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 422 {
 423     wxString oldpath;
 424     wxString tmp;
 425     int p_fontsizes[7];
 426     wxString p_fff, p_ffn;
 427
 428     if (path != wxEmptyString)
 429     {
 430         oldpath = cfg->GetPath();
 431         cfg->SetPath(path);
 432     }
 433
 434     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 435     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 436     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 437     for (int i = 0; i < 7; i++)
 438     {
 439         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 440         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 441     }
 442     SetFonts(p_ffn, p_fff, p_fontsizes);
 443
 444     if (path != wxEmptyString)
 445         cfg->SetPath(oldpath);
 446 }
 447
 448
 449
 450 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 451 {
 452     wxString oldpath;
 453     wxString tmp;
 454
 455     if (path != wxEmptyString)
 456     {
 457         oldpath = cfg->GetPath();
 458         cfg->SetPath(path);
 459     }
 460
 461     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 462     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 463     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 464     for (int i = 0; i < 7; i++)
 465     {
 466         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 467         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 468     }
 469
 470     if (path != wxEmptyString)
 471         cfg->SetPath(oldpath);
 472 }
 473
 474
 475
 476 bool wxHtmlWindow::HistoryBack()
 477 {
 478     wxString a, l;
 479
 480     if (m_HistoryPos < 1) return FALSE;
 481
 482     // store scroll position into history item:
 483     int x, y;
 484     GetViewStart(&x, &y);
 485     (*m_History)[m_HistoryPos].SetPos(y);
 486
 487     // go to previous position:
 488     m_HistoryPos--;
 489
 490     l = (*m_History)[m_HistoryPos].GetPage();
 491     a = (*m_History)[m_HistoryPos].GetAnchor();
 492     m_HistoryOn = FALSE;
 493     m_tmpCanDrawLocks++;
 494     if (a == wxEmptyString) LoadPage(l);
 495     else LoadPage(l + wxT("#") + a);
 496     m_HistoryOn = TRUE;
 497     wxYield();
 498     m_tmpCanDrawLocks--;
 499     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 500     Refresh();
 501     return TRUE;
 502 }
 503
 504 bool wxHtmlWindow::HistoryCanBack()
 505 {
 506     if (m_HistoryPos < 1) return FALSE;
 507     return TRUE ;
 508 }
 509
 510
 511 bool wxHtmlWindow::HistoryForward()
 512 {
 513     wxString a, l;
 514
 515     if (m_HistoryPos == -1) return FALSE;
 516     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
 517
 518     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 519
 520     m_HistoryPos++;
 521     l = (*m_History)[m_HistoryPos].GetPage();
 522     a = (*m_History)[m_HistoryPos].GetAnchor();
 523     m_HistoryOn = FALSE;
 524     m_tmpCanDrawLocks++;
 525     if (a == wxEmptyString) LoadPage(l);
 526     else LoadPage(l + wxT("#") + a);
 527     m_HistoryOn = TRUE;
 528     wxYield();
 529     m_tmpCanDrawLocks--;
 530     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 531     Refresh();
 532     return TRUE;
 533 }
 534
 535 bool wxHtmlWindow::HistoryCanForward()
 536 {
 537     if (m_HistoryPos == -1) return FALSE;
 538     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
 539     return TRUE ;
 540 }
 541
 542
 543 void wxHtmlWindow::HistoryClear()
 544 {
 545     m_History->Empty();
 546     m_HistoryPos = -1;
 547 }
 548
 549 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 550 {
 551     if (!m_Processors)
 552     {
 553         m_Processors = new wxHtmlProcessorList;
 554         m_Processors->DeleteContents(TRUE);
 555     }
 556     wxHtmlProcessorList::Node *node;
 557
 558     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 559     {
 560         if (processor->GetPriority() > node->GetData()->GetPriority())
 561         {
 562             m_Processors->Insert(node, processor);
 563             return;
 564         }
 565     }
 566     m_Processors->Append(processor);
 567 }
 568
 569 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 570 {
 571     if (!m_GlobalProcessors)
 572     {
 573         m_GlobalProcessors = new wxHtmlProcessorList;
 574         m_GlobalProcessors->DeleteContents(TRUE);
 575     }
 576     wxHtmlProcessorList::Node *node;
 577
 578     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 579     {
 580         if (processor->GetPriority() > node->GetData()->GetPriority())
 581         {
 582             m_GlobalProcessors->Insert(node, processor);
 583             return;
 584         }
 585     }
 586     m_GlobalProcessors->Append(processor);
 587 }
 588
 589
 590
 591 wxList wxHtmlWindow::m_Filters;
 592 wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
 593 wxCursor *wxHtmlWindow::s_cur_hand = NULL;
 594 wxCursor *wxHtmlWindow::s_cur_arrow = NULL;
 595 wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
 596
 597 void wxHtmlWindow::CleanUpStatics()
 598 {
 599     delete m_DefaultFilter;
 600     m_DefaultFilter = NULL;
 601     m_Filters.DeleteContents(TRUE);
 602     m_Filters.Clear();
 603     delete m_GlobalProcessors;
 604     m_GlobalProcessors = NULL;
 605     delete s_cur_hand;
 606     delete s_cur_arrow;
 607 }
 608
 609
 610
 611 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 612 {
 613     m_Filters.Append(filter);
 614 }
 615
 616
 617
 618
 619 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 620 {
 621     LoadPage(link.GetHref());
 622 }
 623
 624 void wxHtmlWindow::OnCellClicked(wxHtmlCell *cell,
 625                                  wxCoord x, wxCoord y,
 626                                  const wxMouseEvent& event)
 627 {
 628     wxCHECK_RET( cell, _T("can't be called with NULL cell") );
 629
 630     cell->OnMouseClick(this, x, y, event);
 631 }
 632
 633 void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
 634                                     wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
 635 {
 636     // do nothing here
 637 }
 638
 639 void wxHtmlWindow::OnDraw(wxDC& dc)
 640 {
 641     if (m_tmpCanDrawLocks > 0 || m_Cell == NULL) return;
 642
 643     int x, y;
 644     wxRect rect = GetUpdateRegion().GetBox();
 645
 646     dc.SetMapMode(wxMM_TEXT);
 647     dc.SetBackgroundMode(wxTRANSPARENT);
 648     GetViewStart(&x, &y);
 649
 650     m_Cell->Draw(dc, 0, 0,
 651                  y * wxHTML_SCROLL_STEP + rect.GetTop(),
 652                  y * wxHTML_SCROLL_STEP + rect.GetBottom());
 653 }
 654
 655
 656
 657
 658 void wxHtmlWindow::OnSize(wxSizeEvent& event)
 659 {
 660     wxScrolledWindow::OnSize(event);
 661     CreateLayout();
 662     Refresh();
 663 }
 664
 665
 666 void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event)
 667 {
 668     m_tmpMouseMoved = TRUE;
 669
 670     if (event.ButtonDown())
 671     {
 672         if ( m_Cell )
 673         {
 674             int sx, sy;
 675             GetViewStart(&sx, &sy);
 676             sx *= wxHTML_SCROLL_STEP;
 677             sy *= wxHTML_SCROLL_STEP;
 678
 679             wxPoint pos = event.GetPosition();
 680             pos.x += sx;
 681             pos.y += sy;
 682
 683             wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
 684
 685             // VZ: is it possible that we don't find anything at all?
 686             // VS: yes. FindCellByPos returns terminal cell and
 687             //     containers may have empty borders
 688             if ( cell )
 689                 OnCellClicked(cell, pos.x, pos.y, event);
 690         }
 691     }
 692 }
 693
 694
 695
 696 void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
 697 {
 698     if (s_cur_hand == NULL)
 699     {
 700         s_cur_hand = new wxCursor(wxCURSOR_HAND);
 701         s_cur_arrow = new wxCursor(wxCURSOR_ARROW);
 702     }
 703
 704     if (m_tmpMouseMoved && (m_Cell != NULL))
 705     {
 706         int sx, sy;
 707         GetViewStart(&sx, &sy);
 708         sx *= wxHTML_SCROLL_STEP;
 709         sy *= wxHTML_SCROLL_STEP;
 710
 711         int x, y;
 712         wxGetMousePosition(&x, &y);
 713         ScreenToClient(&x, &y);
 714         x += sx;
 715         y += sy;
 716
 717         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
 718         if ( cell != m_tmpLastCell )
 719         {
 720             wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL;
 721
 722             if (lnk != m_tmpLastLink)
 723             {
 724                 if (lnk == NULL)
 725                 {
 726                     SetCursor(*s_cur_arrow);
 727                     if (m_RelatedStatusBar != -1)
 728                         m_RelatedFrame->SetStatusText(wxEmptyString, m_RelatedStatusBar);
 729                 }
 730                 else
 731                 {
 732                     SetCursor(*s_cur_hand);
 733                     if (m_RelatedStatusBar != -1)
 734                         m_RelatedFrame->SetStatusText(lnk->GetHref(), m_RelatedStatusBar);
 735                 }
 736                 m_tmpLastLink = lnk;
 737             }
 738
 739             m_tmpLastCell = cell;
 740         }
 741         else // mouse moved but stayed in the same cell
 742         {
 743             if ( cell )
 744                 OnCellMouseHover(cell, x, y);
 745         }
 746
 747         m_tmpMouseMoved = FALSE;
 748     }
 749 }
 750
 751
 752 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
 753
 754 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
 755
 756 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
 757     EVT_SIZE(wxHtmlWindow::OnSize)
 758     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent)
 759     EVT_RIGHT_DOWN(wxHtmlWindow::OnMouseEvent)
 760     EVT_MOTION(wxHtmlWindow::OnMouseEvent)
 761     EVT_IDLE(wxHtmlWindow::OnIdle)
 762 END_EVENT_TABLE()
 763
 764
 765
 766
 767
 768 // A module to allow initialization/cleanup
 769 // without calling these functions from app.cpp or from
 770 // the user's application.
 771
 772 class wxHtmlWinModule: public wxModule
 773 {
 774 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
 775 public:
 776     wxHtmlWinModule() : wxModule() {}
 777     bool OnInit() { return TRUE; }
 778     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
 779 };
 780
 781 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
 782
 783
 784 // This hack forces the linker to always link in m_* files
 785 // (wxHTML doesn't work without handlers from these files)
 786 #include "wx/html/forcelnk.h"
 787 FORCE_WXHTML_MODULES()
 788
 789 #endif