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     wxFSFile *f;
 218     bool rt_val;
 219     bool needs_refresh = FALSE;
 220
 221     SetCursor(*wxHOURGLASS_CURSOR);
 222     wxYield(); Refresh(FALSE);
 223
 224     m_tmpCanDrawLocks++;
 225     if (m_HistoryOn && (m_HistoryPos != -1))
 226     {
 227         // store scroll position into history item:
 228         int x, y;
 229         GetViewStart(&x, &y);
 230         (*m_History)[m_HistoryPos].SetPos(y);
 231     }
 232
 233     if (location[0] == wxT('#'))
 234     {
 235         // local anchor:
 236         wxString anch = location.Mid(1) /*1 to end*/;
 237         m_tmpCanDrawLocks--;
 238         rt_val = ScrollToAnchor(anch);
 239         m_tmpCanDrawLocks++;
 240     }
 241     else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
 242     {
 243         wxString anch = location.AfterFirst(wxT('#'));
 244         m_tmpCanDrawLocks--;
 245         rt_val = ScrollToAnchor(anch);
 246         m_tmpCanDrawLocks++;
 247     }
 248     else if (location.Find(wxT('#')) != wxNOT_FOUND &&
 249              (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
 250     {
 251         wxString anch = location.AfterFirst(wxT('#'));
 252         m_tmpCanDrawLocks--;
 253         rt_val = ScrollToAnchor(anch);
 254         m_tmpCanDrawLocks++;
 255     }
 256
 257     else
 258     {
 259         needs_refresh = TRUE;
 260         // load&display it:
 261         if (m_RelatedStatusBar != -1)
 262         {
 263             m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
 264             Refresh(FALSE);
 265         }
 266
 267         f = m_FS->OpenFile(location);
 268
 269         if (f == NULL)
 270         {
 271             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 272             m_tmpCanDrawLocks--;
 273
 274             SetCursor(*wxSTANDARD_CURSOR);
 275             return FALSE;
 276         }
 277
 278         else
 279         {
 280             wxNode *node;
 281             wxString src = wxEmptyString;
 282
 283             if (m_RelatedStatusBar != -1)
 284             {
 285                 wxString msg = _("Loading : ") + location;
 286                 m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
 287                 Refresh(FALSE);
 288             }
 289
 290             node = m_Filters.GetFirst();
 291             while (node)
 292             {
 293                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 294                 if (h->CanRead(*f))
 295                 {
 296                     src = h->ReadFile(*f);
 297                     break;
 298                 }
 299                 node = node->GetNext();
 300             }
 301             if (src == wxEmptyString)
 302             {
 303                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 304                 src = m_DefaultFilter->ReadFile(*f);
 305             }
 306
 307             m_FS->ChangePathTo(f->GetLocation());
 308             rt_val = SetPage(src);
 309             m_OpenedPage = f->GetLocation();
 310             if (f->GetAnchor() != wxEmptyString)
 311             {
 312                 wxYield();
 313                 ScrollToAnchor(f->GetAnchor());
 314             }
 315
 316             delete f;
 317
 318             if (m_RelatedStatusBar != -1) m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
 319         }
 320     }
 321
 322     if (m_HistoryOn) // add this page to history there:
 323     {
 324         int c = m_History->GetCount() - (m_HistoryPos + 1);
 325
 326         if (m_HistoryPos < 0 ||
 327             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 328             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 329         {
 330             m_HistoryPos++;
 331             for (int i = 0; i < c; i++)
 332                 m_History->RemoveAt(m_HistoryPos);
 333             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 334         }
 335     }
 336
 337     if (m_OpenedPageTitle == wxEmptyString)
 338         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 339     SetCursor(*wxSTANDARD_CURSOR);
 340
 341     if (needs_refresh)
 342     {
 343         wxYield();
 344         m_tmpCanDrawLocks--;
 345         Refresh();
 346     }
 347     else
 348         m_tmpCanDrawLocks--;
 349
 350     return rt_val;
 351 }
 352
 353
 354
 355 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 356 {
 357     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 358     if (!c)
 359     {
 360         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 361         return FALSE;
 362     }
 363     else
 364     {
 365         int y;
 366
 367         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 368         Scroll(-1, y / wxHTML_SCROLL_STEP);
 369         m_OpenedAnchor = anchor;
 370         return TRUE;
 371     }
 372 }
 373
 374
 375 void wxHtmlWindow::OnSetTitle(const wxString& title)
 376 {
 377     if (m_RelatedFrame)
 378     {
 379         wxString tit;
 380         tit.Printf(m_TitleFormat, title.c_str());
 381         m_RelatedFrame->SetTitle(tit);
 382     }
 383     m_OpenedPageTitle = title;
 384 }
 385
 386
 387
 388
 389
 390 void wxHtmlWindow::CreateLayout()
 391 {
 392     int ClientWidth, ClientHeight;
 393
 394     if (!m_Cell) return;
 395
 396     if (m_Style & wxHW_SCROLLBAR_NEVER)
 397     {
 398         SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
 399         GetClientSize(&ClientWidth, &ClientHeight);
 400         m_Cell->Layout(ClientWidth);
 401     }
 402
 403     else {
 404         GetClientSize(&ClientWidth, &ClientHeight);
 405         m_Cell->Layout(ClientWidth);
 406         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 407         {
 408             SetScrollbars(
 409                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 410                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 411                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 412                   /*cheat: top-level frag is always container*/);
 413         }
 414         else /* we fit into window, no need for scrollbars */
 415         {
 416             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 417             GetClientSize(&ClientWidth, &ClientHeight);
 418             m_Cell->Layout(ClientWidth); // ...and relayout
 419         }
 420     }
 421 }
 422
 423
 424
 425 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 426 {
 427     wxString oldpath;
 428     wxString tmp;
 429     int p_fontsizes[7];
 430     wxString p_fff, p_ffn;
 431
 432     if (path != wxEmptyString)
 433     {
 434         oldpath = cfg->GetPath();
 435         cfg->SetPath(path);
 436     }
 437
 438     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 439     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 440     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 441     for (int i = 0; i < 7; i++)
 442     {
 443         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 444         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 445     }
 446     SetFonts(p_ffn, p_fff, p_fontsizes);
 447
 448     if (path != wxEmptyString)
 449         cfg->SetPath(oldpath);
 450 }
 451
 452
 453
 454 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 455 {
 456     wxString oldpath;
 457     wxString tmp;
 458
 459     if (path != wxEmptyString)
 460     {
 461         oldpath = cfg->GetPath();
 462         cfg->SetPath(path);
 463     }
 464
 465     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 466     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 467     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 468     for (int i = 0; i < 7; i++)
 469     {
 470         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 471         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 472     }
 473
 474     if (path != wxEmptyString)
 475         cfg->SetPath(oldpath);
 476 }
 477
 478
 479
 480 bool wxHtmlWindow::HistoryBack()
 481 {
 482     wxString a, l;
 483
 484     if (m_HistoryPos < 1) return FALSE;
 485
 486     // store scroll position into history item:
 487     int x, y;
 488     GetViewStart(&x, &y);
 489     (*m_History)[m_HistoryPos].SetPos(y);
 490
 491     // go to previous position:
 492     m_HistoryPos--;
 493
 494     l = (*m_History)[m_HistoryPos].GetPage();
 495     a = (*m_History)[m_HistoryPos].GetAnchor();
 496     m_HistoryOn = FALSE;
 497     m_tmpCanDrawLocks++;
 498     if (a == wxEmptyString) LoadPage(l);
 499     else LoadPage(l + wxT("#") + a);
 500     m_HistoryOn = TRUE;
 501     wxYield();
 502     m_tmpCanDrawLocks--;
 503     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 504     Refresh();
 505     return TRUE;
 506 }
 507
 508 bool wxHtmlWindow::HistoryCanBack()
 509 {
 510     if (m_HistoryPos < 1) return FALSE;
 511     return TRUE ;
 512 }
 513
 514
 515 bool wxHtmlWindow::HistoryForward()
 516 {
 517     wxString a, l;
 518
 519     if (m_HistoryPos == -1) return FALSE;
 520     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
 521
 522     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 523
 524     m_HistoryPos++;
 525     l = (*m_History)[m_HistoryPos].GetPage();
 526     a = (*m_History)[m_HistoryPos].GetAnchor();
 527     m_HistoryOn = FALSE;
 528     m_tmpCanDrawLocks++;
 529     if (a == wxEmptyString) LoadPage(l);
 530     else LoadPage(l + wxT("#") + a);
 531     m_HistoryOn = TRUE;
 532     wxYield();
 533     m_tmpCanDrawLocks--;
 534     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 535     Refresh();
 536     return TRUE;
 537 }
 538
 539 bool wxHtmlWindow::HistoryCanForward()
 540 {
 541     if (m_HistoryPos == -1) return FALSE;
 542     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
 543     return TRUE ;
 544 }
 545
 546
 547 void wxHtmlWindow::HistoryClear()
 548 {
 549     m_History->Empty();
 550     m_HistoryPos = -1;
 551 }
 552
 553 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 554 {
 555     if (!m_Processors)
 556     {
 557         m_Processors = new wxHtmlProcessorList;
 558         m_Processors->DeleteContents(TRUE);
 559     }
 560     wxHtmlProcessorList::Node *node;
 561
 562     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 563     {
 564         if (processor->GetPriority() > node->GetData()->GetPriority())
 565         {
 566             m_Processors->Insert(node, processor);
 567             return;
 568         }
 569     }
 570     m_Processors->Append(processor);
 571 }
 572
 573 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 574 {
 575     if (!m_GlobalProcessors)
 576     {
 577         m_GlobalProcessors = new wxHtmlProcessorList;
 578         m_GlobalProcessors->DeleteContents(TRUE);
 579     }
 580     wxHtmlProcessorList::Node *node;
 581
 582     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 583     {
 584         if (processor->GetPriority() > node->GetData()->GetPriority())
 585         {
 586             m_GlobalProcessors->Insert(node, processor);
 587             return;
 588         }
 589     }
 590     m_GlobalProcessors->Append(processor);
 591 }
 592
 593
 594
 595 wxList wxHtmlWindow::m_Filters;
 596 wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
 597 wxCursor *wxHtmlWindow::s_cur_hand = NULL;
 598 wxCursor *wxHtmlWindow::s_cur_arrow = NULL;
 599 wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
 600
 601 void wxHtmlWindow::CleanUpStatics()
 602 {
 603     delete m_DefaultFilter;
 604     m_DefaultFilter = NULL;
 605     m_Filters.DeleteContents(TRUE);
 606     m_Filters.Clear();
 607     delete m_GlobalProcessors;
 608     m_GlobalProcessors = NULL;
 609     delete s_cur_hand;
 610     delete s_cur_arrow;
 611 }
 612
 613
 614
 615 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 616 {
 617     m_Filters.Append(filter);
 618 }
 619
 620
 621
 622
 623 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 624 {
 625     LoadPage(link.GetHref());
 626 }
 627
 628 void wxHtmlWindow::OnCellClicked(wxHtmlCell *cell,
 629                                  wxCoord x, wxCoord y,
 630                                  const wxMouseEvent& event)
 631 {
 632     wxCHECK_RET( cell, _T("can't be called with NULL cell") );
 633
 634     cell->OnMouseClick(this, x, y, event);
 635 }
 636
 637 void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
 638                                     wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
 639 {
 640     // do nothing here
 641 }
 642
 643 void wxHtmlWindow::OnDraw(wxDC& dc)
 644 {
 645     if (m_tmpCanDrawLocks > 0 || m_Cell == NULL) return;
 646
 647     int x, y;
 648     wxRect rect = GetUpdateRegion().GetBox();
 649
 650     dc.SetMapMode(wxMM_TEXT);
 651     dc.SetBackgroundMode(wxTRANSPARENT);
 652     GetViewStart(&x, &y);
 653
 654     m_Cell->Draw(dc, 0, 0,
 655                  y * wxHTML_SCROLL_STEP + rect.GetTop(),
 656                  y * wxHTML_SCROLL_STEP + rect.GetBottom());
 657 }
 658
 659
 660
 661
 662 void wxHtmlWindow::OnSize(wxSizeEvent& event)
 663 {
 664     wxScrolledWindow::OnSize(event);
 665     CreateLayout();
 666     Refresh();
 667 }
 668
 669
 670 void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event)
 671 {
 672     m_tmpMouseMoved = TRUE;
 673
 674     if (event.ButtonDown())
 675     {
 676         if ( m_Cell )
 677         {
 678             int sx, sy;
 679             GetViewStart(&sx, &sy);
 680             sx *= wxHTML_SCROLL_STEP;
 681             sy *= wxHTML_SCROLL_STEP;
 682
 683             wxPoint pos = event.GetPosition();
 684             pos.x += sx;
 685             pos.y += sy;
 686
 687             wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
 688
 689             // VZ: is it possible that we don't find anything at all?
 690             // VS: yes. FindCellByPos returns terminal cell and
 691             //     containers may have empty borders
 692             if ( cell )
 693                 OnCellClicked(cell, pos.x, pos.y, event);
 694         }
 695     }
 696 }
 697
 698
 699
 700 void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
 701 {
 702     if (s_cur_hand == NULL)
 703     {
 704         s_cur_hand = new wxCursor(wxCURSOR_HAND);
 705         s_cur_arrow = new wxCursor(wxCURSOR_ARROW);
 706     }
 707
 708     if (m_tmpMouseMoved && (m_Cell != NULL))
 709     {
 710         int sx, sy;
 711         GetViewStart(&sx, &sy);
 712         sx *= wxHTML_SCROLL_STEP;
 713         sy *= wxHTML_SCROLL_STEP;
 714
 715         int x, y;
 716         wxGetMousePosition(&x, &y);
 717         ScreenToClient(&x, &y);
 718         x += sx;
 719         y += sy;
 720
 721         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
 722         if ( cell != m_tmpLastCell )
 723         {
 724             wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL;
 725
 726             if (lnk != m_tmpLastLink)
 727             {
 728                 if (lnk == NULL)
 729                 {
 730                     SetCursor(*s_cur_arrow);
 731                     if (m_RelatedStatusBar != -1)
 732                         m_RelatedFrame->SetStatusText(wxEmptyString, m_RelatedStatusBar);
 733                 }
 734                 else
 735                 {
 736                     SetCursor(*s_cur_hand);
 737                     if (m_RelatedStatusBar != -1)
 738                         m_RelatedFrame->SetStatusText(lnk->GetHref(), m_RelatedStatusBar);
 739                 }
 740                 m_tmpLastLink = lnk;
 741             }
 742
 743             m_tmpLastCell = cell;
 744         }
 745         else // mouse moved but stayed in the same cell
 746         {
 747             if ( cell )
 748                 OnCellMouseHover(cell, x, y);
 749         }
 750
 751         m_tmpMouseMoved = FALSE;
 752     }
 753 }
 754
 755
 756 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
 757
 758 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
 759
 760 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
 761     EVT_SIZE(wxHtmlWindow::OnSize)
 762     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent)
 763     EVT_RIGHT_DOWN(wxHtmlWindow::OnMouseEvent)
 764     EVT_MOTION(wxHtmlWindow::OnMouseEvent)
 765     EVT_IDLE(wxHtmlWindow::OnIdle)
 766 END_EVENT_TABLE()
 767
 768
 769
 770
 771
 772 // A module to allow initialization/cleanup
 773 // without calling these functions from app.cpp or from
 774 // the user's application.
 775
 776 class wxHtmlWinModule: public wxModule
 777 {
 778 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
 779 public:
 780     wxHtmlWinModule() : wxModule() {}
 781     bool OnInit() { return TRUE; }
 782     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
 783 };
 784
 785 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
 786
 787
 788 // This hack forces the linker to always link in m_* files
 789 // (wxHTML doesn't work without handlers from these files)
 790 #include "wx/html/forcelnk.h"
 791 FORCE_WXHTML_MODULES()
 792
 793 #endif