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/forcelnk.h"
  34 #include "wx/html/htmlproc.h"
  35 #include "wx/list.h"
  36
  37 #include "wx/arrimpl.cpp"
  38 #include "wx/listimpl.cpp"
  39
  40 //-----------------------------------------------------------------------------
  41 // wxHtmlHistoryItem
  42 //-----------------------------------------------------------------------------
  43
  44 // item of history list
  45 class WXDLLEXPORT wxHtmlHistoryItem : public wxObject
  46 {
  47 public:
  48     wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
  49     int GetPos() const {return m_Pos;}
  50     void SetPos(int p) {m_Pos = p;}
  51     const wxString& GetPage() const {return m_Page;}
  52     const wxString& GetAnchor() const {return m_Anchor;}
  53
  54 private:
  55     wxString m_Page;
  56     wxString m_Anchor;
  57     int m_Pos;
  58 };
  59
  60
  61 //-----------------------------------------------------------------------------
  62 // our private arrays:
  63 //-----------------------------------------------------------------------------
  64
  65 WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
  66 WX_DEFINE_OBJARRAY(wxHtmlHistoryArray);
  67
  68 WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
  69 WX_DEFINE_LIST(wxHtmlProcessorList);
  70
  71 //-----------------------------------------------------------------------------
  72 // wxHtmlWindow
  73 //-----------------------------------------------------------------------------
  74
  75
  76 wxHtmlWindow::wxHtmlWindow(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size,
  77                 long style, const wxString& name) : wxScrolledWindow(parent, id, pos, size, style | wxVSCROLL | wxHSCROLL, name)
  78 {
  79     m_tmpMouseMoved = FALSE;
  80     m_tmpLastLink = NULL;
  81     m_tmpLastCell = NULL;
  82     m_tmpCanDrawLocks = 0;
  83     m_FS = new wxFileSystem();
  84     m_RelatedStatusBar = -1;
  85     m_RelatedFrame = NULL;
  86     m_TitleFormat = wxT("%s");
  87     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
  88     m_Cell = NULL;
  89     m_Parser = new wxHtmlWinParser(this);
  90     m_Parser->SetFS(m_FS);
  91     SetBorders(10);
  92     m_HistoryPos = -1;
  93     m_HistoryOn = TRUE;
  94     m_History = new wxHtmlHistoryArray;
  95     m_Processors = NULL;
  96     m_Style = style;
  97     SetPage(wxT("<html><body></body></html>"));
  98 }
  99
 100
 101
 102 wxHtmlWindow::~wxHtmlWindow()
 103 {
 104     HistoryClear();
 105
 106     if (m_Cell) delete m_Cell;
 107
 108     delete m_Parser;
 109     delete m_FS;
 110     delete m_History;
 111     delete m_Processors;
 112 }
 113
 114
 115
 116 void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
 117 {
 118     m_RelatedFrame = frame;
 119     m_TitleFormat = format;
 120 }
 121
 122
 123
 124 void wxHtmlWindow::SetRelatedStatusBar(int bar)
 125 {
 126     m_RelatedStatusBar = bar;
 127 }
 128
 129
 130
 131 void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes)
 132 {
 133     wxString op = m_OpenedPage;
 134
 135     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 136     // fonts changed => contents invalid, so reload the page:
 137     SetPage(wxT("<html><body></body></html>"));
 138     if (!op.IsEmpty()) LoadPage(op);
 139 }
 140
 141
 142
 143 bool wxHtmlWindow::SetPage(const wxString& source)
 144 {
 145     wxString newsrc(source);
 146
 147     // pass HTML through registered processors:
 148     if (m_Processors || m_GlobalProcessors)
 149     {
 150         wxHtmlProcessorList::Node *nodeL, *nodeG;
 151         int prL, prG;
 152
 153         nodeL = (m_Processors) ? m_Processors->GetFirst() : NULL;
 154         nodeG = (m_GlobalProcessors) ? m_GlobalProcessors->GetFirst() : NULL;
 155
 156         // VS: there are two lists, global and local, both of them sorted by
 157         //     priority. Since we have to go through _both_ lists with
 158         //     decreasing priority, we "merge-sort" the lists on-line by
 159         //     processing that one of the two heads that has higher priority
 160         //     in every iteration
 161         while (nodeL || nodeG)
 162         {
 163             prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
 164             prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
 165             if (prL > prG)
 166             {
 167                 if (nodeL->GetData()->IsEnabled())
 168                     newsrc = nodeL->GetData()->Process(newsrc);
 169                 nodeL = nodeL->GetNext();
 170             }
 171             else // prL <= prG
 172             {
 173                 if (nodeG->GetData()->IsEnabled())
 174                     newsrc = nodeG->GetData()->Process(newsrc);
 175                 nodeG = nodeG->GetNext();
 176             }
 177         }
 178     }
 179
 180     // ...and run the parser on it:
 181     wxClientDC *dc = new wxClientDC(this);
 182     dc->SetMapMode(wxMM_TEXT);
 183     SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
 184     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 185     m_Parser->SetDC(dc);
 186     if (m_Cell)
 187     {
 188         delete m_Cell;
 189         m_Cell = NULL;
 190     }
 191     m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
 192     delete dc;
 193     m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 194     m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
 195     CreateLayout();
 196     if (m_tmpCanDrawLocks == 0)
 197         Refresh();
 198     return TRUE;
 199 }
 200
 201
 202 bool wxHtmlWindow::LoadPage(const wxString& location)
 203 {
 204     wxFSFile *f;
 205     bool rt_val;
 206     bool needs_refresh = FALSE;
 207
 208     SetCursor(*wxHOURGLASS_CURSOR);
 209     wxYield(); Refresh(FALSE);
 210
 211     m_tmpCanDrawLocks++;
 212     if (m_HistoryOn && (m_HistoryPos != -1))
 213     {
 214         // store scroll position into history item:
 215         int x, y;
 216         GetViewStart(&x, &y);
 217         (*m_History)[m_HistoryPos].SetPos(y);
 218     }
 219
 220     if (location[0] == wxT('#'))
 221     {
 222         // local anchor:
 223         wxString anch = location.Mid(1) /*1 to end*/;
 224         m_tmpCanDrawLocks--;
 225         rt_val = ScrollToAnchor(anch);
 226         m_tmpCanDrawLocks++;
 227     }
 228     else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
 229     {
 230         wxString anch = location.AfterFirst(wxT('#'));
 231         m_tmpCanDrawLocks--;
 232         rt_val = ScrollToAnchor(anch);
 233         m_tmpCanDrawLocks++;
 234     }
 235     else if (location.Find(wxT('#')) != wxNOT_FOUND &&
 236              (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
 237     {
 238         wxString anch = location.AfterFirst(wxT('#'));
 239         m_tmpCanDrawLocks--;
 240         rt_val = ScrollToAnchor(anch);
 241         m_tmpCanDrawLocks++;
 242     }
 243
 244     else
 245     {
 246         needs_refresh = TRUE;
 247         // load&display it:
 248         if (m_RelatedStatusBar != -1)
 249         {
 250             m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
 251             Refresh(FALSE);
 252         }
 253
 254         f = m_FS->OpenFile(location);
 255
 256         if (f == NULL)
 257         {
 258             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 259             m_tmpCanDrawLocks--;
 260
 261             SetCursor(*wxSTANDARD_CURSOR);
 262             return FALSE;
 263         }
 264
 265         else
 266         {
 267             wxNode *node;
 268             wxString src = wxEmptyString;
 269
 270             if (m_RelatedStatusBar != -1)
 271             {
 272                 wxString msg = _("Loading : ") + location;
 273                 m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
 274                 Refresh(FALSE);
 275             }
 276
 277             node = m_Filters.GetFirst();
 278             while (node)
 279             {
 280                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 281                 if (h->CanRead(*f))
 282                 {
 283                     src = h->ReadFile(*f);
 284                     break;
 285                 }
 286                 node = node->GetNext();
 287             }
 288             if (src == wxEmptyString)
 289             {
 290                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 291                 src = m_DefaultFilter->ReadFile(*f);
 292             }
 293
 294             m_FS->ChangePathTo(f->GetLocation());
 295             rt_val = SetPage(src);
 296             m_OpenedPage = f->GetLocation();
 297             if (f->GetAnchor() != wxEmptyString)
 298             {
 299                 wxYield();
 300                 ScrollToAnchor(f->GetAnchor());
 301             }
 302
 303             delete f;
 304
 305             if (m_RelatedStatusBar != -1) m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
 306         }
 307     }
 308
 309     if (m_HistoryOn) // add this page to history there:
 310     {
 311         int c = m_History->GetCount() - (m_HistoryPos + 1);
 312
 313         if (m_HistoryPos < 0 ||
 314             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 315             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 316         {
 317             m_HistoryPos++;
 318             for (int i = 0; i < c; i++)
 319                 m_History->RemoveAt(m_HistoryPos);
 320             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 321         }
 322     }
 323
 324     if (m_OpenedPageTitle == wxEmptyString)
 325         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 326     SetCursor(*wxSTANDARD_CURSOR);
 327
 328     if (needs_refresh)
 329     {
 330         wxYield();
 331         m_tmpCanDrawLocks--;
 332         Refresh();
 333     }
 334     else
 335         m_tmpCanDrawLocks--;
 336
 337     return rt_val;
 338 }
 339
 340
 341
 342 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 343 {
 344     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 345     if (!c)
 346     {
 347         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 348         return FALSE;
 349     }
 350     else
 351     {
 352         int y;
 353
 354         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 355         Scroll(-1, y / wxHTML_SCROLL_STEP);
 356         m_OpenedAnchor = anchor;
 357         return TRUE;
 358     }
 359 }
 360
 361
 362 void wxHtmlWindow::OnSetTitle(const wxString& title)
 363 {
 364     if (m_RelatedFrame)
 365     {
 366         wxString tit;
 367         tit.Printf(m_TitleFormat, title.c_str());
 368         m_RelatedFrame->SetTitle(tit);
 369     }
 370     m_OpenedPageTitle = title;
 371 }
 372
 373
 374
 375
 376
 377 void wxHtmlWindow::CreateLayout()
 378 {
 379     int ClientWidth, ClientHeight;
 380
 381     if (!m_Cell) return;
 382
 383     if (m_Style & wxHW_SCROLLBAR_NEVER)
 384     {
 385         SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
 386         GetClientSize(&ClientWidth, &ClientHeight);
 387         m_Cell->Layout(ClientWidth);
 388     }
 389
 390     else {
 391         GetClientSize(&ClientWidth, &ClientHeight);
 392         m_Cell->Layout(ClientWidth);
 393         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 394         {
 395             SetScrollbars(
 396                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 397                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 398                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 399                   /*cheat: top-level frag is always container*/);
 400         }
 401         else /* we fit into window, no need for scrollbars */
 402         {
 403             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 404             GetClientSize(&ClientWidth, &ClientHeight);
 405             m_Cell->Layout(ClientWidth); // ...and relayout
 406         }
 407     }
 408 }
 409
 410
 411
 412 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 413 {
 414     wxString oldpath;
 415     wxString tmp;
 416     int p_fontsizes[7];
 417     wxString p_fff, p_ffn;
 418
 419     if (path != wxEmptyString)
 420     {
 421         oldpath = cfg->GetPath();
 422         cfg->SetPath(path);
 423     }
 424
 425     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 426     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 427     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 428     for (int i = 0; i < 7; i++)
 429     {
 430         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 431         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 432     }
 433     SetFonts(p_ffn, p_fff, p_fontsizes);
 434
 435     if (path != wxEmptyString)
 436         cfg->SetPath(oldpath);
 437 }
 438
 439
 440
 441 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 442 {
 443     wxString oldpath;
 444     wxString tmp;
 445
 446     if (path != wxEmptyString)
 447     {
 448         oldpath = cfg->GetPath();
 449         cfg->SetPath(path);
 450     }
 451
 452     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 453     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 454     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 455     for (int i = 0; i < 7; i++)
 456     {
 457         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 458         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 459     }
 460
 461     if (path != wxEmptyString)
 462         cfg->SetPath(oldpath);
 463 }
 464
 465
 466
 467 bool wxHtmlWindow::HistoryBack()
 468 {
 469     wxString a, l;
 470
 471     if (m_HistoryPos < 1) return FALSE;
 472
 473     // store scroll position into history item:
 474     int x, y;
 475     GetViewStart(&x, &y);
 476     (*m_History)[m_HistoryPos].SetPos(y);
 477
 478     // go to previous position:
 479     m_HistoryPos--;
 480
 481     l = (*m_History)[m_HistoryPos].GetPage();
 482     a = (*m_History)[m_HistoryPos].GetAnchor();
 483     m_HistoryOn = FALSE;
 484     m_tmpCanDrawLocks++;
 485     if (a == wxEmptyString) LoadPage(l);
 486     else LoadPage(l + wxT("#") + a);
 487     m_HistoryOn = TRUE;
 488     wxYield();
 489     m_tmpCanDrawLocks--;
 490     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 491     Refresh();
 492     return TRUE;
 493 }
 494
 495 bool wxHtmlWindow::HistoryCanBack()
 496 {
 497     if (m_HistoryPos < 1) return FALSE;
 498     return TRUE ;
 499 }
 500
 501
 502 bool wxHtmlWindow::HistoryForward()
 503 {
 504     wxString a, l;
 505
 506     if (m_HistoryPos == -1) return FALSE;
 507     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
 508
 509     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 510
 511     m_HistoryPos++;
 512     l = (*m_History)[m_HistoryPos].GetPage();
 513     a = (*m_History)[m_HistoryPos].GetAnchor();
 514     m_HistoryOn = FALSE;
 515     m_tmpCanDrawLocks++;
 516     if (a == wxEmptyString) LoadPage(l);
 517     else LoadPage(l + wxT("#") + a);
 518     m_HistoryOn = TRUE;
 519     wxYield();
 520     m_tmpCanDrawLocks--;
 521     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 522     Refresh();
 523     return TRUE;
 524 }
 525
 526 bool wxHtmlWindow::HistoryCanForward()
 527 {
 528     if (m_HistoryPos == -1) return FALSE;
 529     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
 530     return TRUE ;
 531 }
 532
 533
 534 void wxHtmlWindow::HistoryClear()
 535 {
 536     m_History->Empty();
 537     m_HistoryPos = -1;
 538 }
 539
 540 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 541 {
 542     if (!m_Processors)
 543     {
 544         m_Processors = new wxHtmlProcessorList;
 545         m_Processors->DeleteContents(TRUE);
 546     }
 547     wxHtmlProcessorList::Node *node;
 548
 549     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 550     {
 551         if (processor->GetPriority() > node->GetData()->GetPriority())
 552         {
 553             m_Processors->Insert(node, processor);
 554             return;
 555         }
 556     }
 557     m_Processors->Append(processor);
 558 }
 559
 560 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 561 {
 562     if (!m_GlobalProcessors)
 563     {
 564         m_GlobalProcessors = new wxHtmlProcessorList;
 565         m_GlobalProcessors->DeleteContents(TRUE);
 566     }
 567     wxHtmlProcessorList::Node *node;
 568
 569     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 570     {
 571         if (processor->GetPriority() > node->GetData()->GetPriority())
 572         {
 573             m_GlobalProcessors->Insert(node, processor);
 574             return;
 575         }
 576     }
 577     m_GlobalProcessors->Append(processor);
 578 }
 579
 580
 581
 582 wxList wxHtmlWindow::m_Filters;
 583 wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
 584 wxCursor *wxHtmlWindow::s_cur_hand = NULL;
 585 wxCursor *wxHtmlWindow::s_cur_arrow = NULL;
 586 wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
 587
 588 void wxHtmlWindow::CleanUpStatics()
 589 {
 590     delete m_DefaultFilter;
 591     m_DefaultFilter = NULL;
 592     m_Filters.DeleteContents(TRUE);
 593     m_Filters.Clear();
 594     delete m_GlobalProcessors;
 595     m_GlobalProcessors = NULL;
 596     delete s_cur_hand;
 597     delete s_cur_arrow;
 598 }
 599
 600
 601
 602 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 603 {
 604     m_Filters.Append(filter);
 605 }
 606
 607
 608
 609
 610 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 611 {
 612     LoadPage(link.GetHref());
 613 }
 614
 615 void wxHtmlWindow::OnCellClicked(wxHtmlCell *cell,
 616                                  wxCoord x, wxCoord y,
 617                                  const wxMouseEvent& event)
 618 {
 619     wxCHECK_RET( cell, _T("can't be called with NULL cell") );
 620
 621     cell->OnMouseClick(this, x, y, event);
 622 }
 623
 624 void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
 625                                     wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
 626 {
 627     // do nothing here
 628 }
 629
 630 void wxHtmlWindow::OnDraw(wxDC& dc)
 631 {
 632     int x, y;
 633     wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
 634     int v_y, v_h;
 635
 636     if (m_tmpCanDrawLocks > 0) return;
 637
 638     dc.SetMapMode(wxMM_TEXT);
 639     dc.SetBackgroundMode(wxTRANSPARENT);
 640     GetViewStart(&x, &y);
 641
 642     while (upd)
 643     {
 644         v_y = upd.GetY();
 645         v_h = upd.GetH();
 646         if (m_Cell) m_Cell->Draw(dc, 0, 0, y * wxHTML_SCROLL_STEP + v_y, y * wxHTML_SCROLL_STEP + v_h + v_y);
 647         upd++;
 648     }
 649 }
 650
 651
 652
 653
 654 void wxHtmlWindow::OnSize(wxSizeEvent& event)
 655 {
 656     wxScrolledWindow::OnSize(event);
 657     CreateLayout();
 658     Refresh();
 659 }
 660
 661
 662 void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event)
 663 {
 664     m_tmpMouseMoved = TRUE;
 665
 666     if (event.ButtonDown())
 667     {
 668         if ( m_Cell )
 669         {
 670             int sx, sy;
 671             GetViewStart(&sx, &sy);
 672             sx *= wxHTML_SCROLL_STEP;
 673             sy *= wxHTML_SCROLL_STEP;
 674
 675             wxPoint pos = event.GetPosition();
 676             pos.x += sx;
 677             pos.y += sy;
 678
 679             wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
 680
 681             // VZ: is it possible that we don't find anything at all?
 682             // VS: yes. FindCellByPos returns terminal cell and
 683             //     containers may have empty borders
 684             if ( cell )
 685                 OnCellClicked(cell, pos.x, pos.y, event);
 686         }
 687     }
 688 }
 689
 690
 691
 692 void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
 693 {
 694     if (s_cur_hand == NULL)
 695     {
 696         s_cur_hand = new wxCursor(wxCURSOR_HAND);
 697         s_cur_arrow = new wxCursor(wxCURSOR_ARROW);
 698     }
 699
 700     if (m_tmpMouseMoved && (m_Cell != NULL))
 701     {
 702         int sx, sy;
 703         GetViewStart(&sx, &sy);
 704         sx *= wxHTML_SCROLL_STEP;
 705         sy *= wxHTML_SCROLL_STEP;
 706
 707         int x, y;
 708         wxGetMousePosition(&x, &y);
 709         ScreenToClient(&x, &y);
 710         x += sx;
 711         y += sy;
 712
 713         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
 714         if ( cell != m_tmpLastCell )
 715         {
 716             wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL;
 717
 718             if (lnk != m_tmpLastLink)
 719             {
 720                 if (lnk == NULL)
 721                 {
 722                     SetCursor(*s_cur_arrow);
 723                     if (m_RelatedStatusBar != -1)
 724                         m_RelatedFrame->SetStatusText(wxEmptyString, m_RelatedStatusBar);
 725                 }
 726                 else
 727                 {
 728                     SetCursor(*s_cur_hand);
 729                     if (m_RelatedStatusBar != -1)
 730                         m_RelatedFrame->SetStatusText(lnk->GetHref(), m_RelatedStatusBar);
 731                 }
 732                 m_tmpLastLink = lnk;
 733             }
 734
 735             m_tmpLastCell = cell;
 736         }
 737         else // mouse moved but stayed in the same cell
 738         {
 739             if ( cell )
 740                 OnCellMouseHover(cell, x, y);
 741         }
 742
 743         m_tmpMouseMoved = FALSE;
 744     }
 745 }
 746
 747
 748 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
 749
 750 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
 751
 752 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
 753     EVT_SIZE(wxHtmlWindow::OnSize)
 754     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent)
 755     EVT_RIGHT_DOWN(wxHtmlWindow::OnMouseEvent)
 756     EVT_MOTION(wxHtmlWindow::OnMouseEvent)
 757     EVT_IDLE(wxHtmlWindow::OnIdle)
 758 END_EVENT_TABLE()
 759
 760
 761
 762
 763
 764 // A module to allow initialization/cleanup
 765 // without calling these functions from app.cpp or from
 766 // the user's application.
 767
 768 class wxHtmlWinModule: public wxModule
 769 {
 770 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
 771 public:
 772     wxHtmlWinModule() : wxModule() {}
 773     bool OnInit() { return TRUE; }
 774     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
 775 };
 776
 777 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
 778
 779
 780
 781
 782 ///// default mod handlers are forced there:
 783
 784 FORCE_LINK(m_layout)
 785 FORCE_LINK(m_fonts)
 786 FORCE_LINK(m_image)
 787 FORCE_LINK(m_list)
 788 FORCE_LINK(m_dflist)
 789 FORCE_LINK(m_pre)
 790 FORCE_LINK(m_hline)
 791 FORCE_LINK(m_links)
 792 FORCE_LINK(m_tables)
 793 FORCE_LINK(m_meta)
 794
 795
 796 #endif