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 __BORLANDC__
  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 #include "wx/clipbrd.h"
  36 #include "wx/dataobj.h"
  37 #include "wx/timer.h"
  38 #include "wx/dcmemory.h"
  39
  40 #include "wx/arrimpl.cpp"
  41 #include "wx/listimpl.cpp"
  42
  43
  44
  45 #if wxUSE_CLIPBOARD
  46 // ----------------------------------------------------------------------------
  47 // wxHtmlWinAutoScrollTimer: the timer used to generate a stream of scroll
  48 // events when a captured mouse is held outside the window
  49 // ----------------------------------------------------------------------------
  50
  51 class wxHtmlWinAutoScrollTimer : public wxTimer
  52 {
  53 public:
  54     wxHtmlWinAutoScrollTimer(wxScrolledWindow *win,
  55                       wxEventType eventTypeToSend,
  56                       int pos, int orient)
  57     {
  58         m_win = win;
  59         m_eventType = eventTypeToSend;
  60         m_pos = pos;
  61         m_orient = orient;
  62     }
  63
  64     virtual void Notify();
  65
  66 private:
  67     wxScrolledWindow *m_win;
  68     wxEventType m_eventType;
  69     int m_pos,
  70         m_orient;
  71
  72     DECLARE_NO_COPY_CLASS(wxHtmlWinAutoScrollTimer)
  73 };
  74
  75 void wxHtmlWinAutoScrollTimer::Notify()
  76 {
  77     // only do all this as long as the window is capturing the mouse
  78     if ( wxWindow::GetCapture() != m_win )
  79     {
  80         Stop();
  81     }
  82     else // we still capture the mouse, continue generating events
  83     {
  84         // first scroll the window if we are allowed to do it
  85         wxScrollWinEvent event1(m_eventType, m_pos, m_orient);
  86         event1.SetEventObject(m_win);
  87         if ( m_win->GetEventHandler()->ProcessEvent(event1) )
  88         {
  89             // and then send a pseudo mouse-move event to refresh the selection
  90             wxMouseEvent event2(wxEVT_MOTION);
  91             wxGetMousePosition(&event2.m_x, &event2.m_y);
  92
  93             // the mouse event coordinates should be client, not screen as
  94             // returned by wxGetMousePosition
  95             wxWindow *parentTop = m_win;
  96             while ( parentTop->GetParent() )
  97                 parentTop = parentTop->GetParent();
  98             wxPoint ptOrig = parentTop->GetPosition();
  99             event2.m_x -= ptOrig.x;
 100             event2.m_y -= ptOrig.y;
 101
 102             event2.SetEventObject(m_win);
 103
 104             // FIXME: we don't fill in the other members - ok?
 105             m_win->GetEventHandler()->ProcessEvent(event2);
 106         }
 107         else // can't scroll further, stop
 108         {
 109             Stop();
 110         }
 111     }
 112 }
 113
 114 #endif // wxUSE_CLIPBOARD
 115
 116
 117
 118 //-----------------------------------------------------------------------------
 119 // wxHtmlHistoryItem
 120 //-----------------------------------------------------------------------------
 121
 122 // item of history list
 123 class WXDLLIMPEXP_HTML wxHtmlHistoryItem
 124 {
 125 public:
 126     wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
 127     int GetPos() const {return m_Pos;}
 128     void SetPos(int p) {m_Pos = p;}
 129     const wxString& GetPage() const {return m_Page;}
 130     const wxString& GetAnchor() const {return m_Anchor;}
 131
 132 private:
 133     wxString m_Page;
 134     wxString m_Anchor;
 135     int m_Pos;
 136 };
 137
 138
 139 //-----------------------------------------------------------------------------
 140 // our private arrays:
 141 //-----------------------------------------------------------------------------
 142
 143 WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
 144 WX_DEFINE_OBJARRAY(wxHtmlHistoryArray);
 145
 146 WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
 147 WX_DEFINE_LIST(wxHtmlProcessorList);
 148
 149 //-----------------------------------------------------------------------------
 150 // wxHtmlWindow
 151 //-----------------------------------------------------------------------------
 152
 153
 154 void wxHtmlWindow::Init()
 155 {
 156     m_tmpMouseMoved = FALSE;
 157     m_tmpLastLink = NULL;
 158     m_tmpLastCell = NULL;
 159     m_tmpCanDrawLocks = 0;
 160     m_FS = new wxFileSystem();
 161     m_RelatedStatusBar = -1;
 162     m_RelatedFrame = NULL;
 163     m_TitleFormat = wxT("%s");
 164     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 165     m_Cell = NULL;
 166     m_Parser = new wxHtmlWinParser(this);
 167     m_Parser->SetFS(m_FS);
 168     m_HistoryPos = -1;
 169     m_HistoryOn = TRUE;
 170     m_History = new wxHtmlHistoryArray;
 171     m_Processors = NULL;
 172     m_Style = 0;
 173     SetBorders(10);
 174     m_selection = NULL;
 175     m_makingSelection = false;
 176 #if wxUSE_CLIPBOARD
 177     m_timerAutoScroll = NULL;
 178     m_lastDoubleClick = 0;
 179 #endif // wxUSE_CLIPBOARD
 180     m_backBuffer = NULL;
 181 }
 182
 183 bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
 184                           const wxPoint& pos, const wxSize& size,
 185                           long style, const wxString& name)
 186 {
 187     if (!wxScrolledWindow::Create(parent, id, pos, size,
 188                                   style | wxVSCROLL | wxHSCROLL, name))
 189         return FALSE;
 190
 191     m_Style = style;
 192     SetPage(wxT("<html><body></body></html>"));
 193     return TRUE;
 194 }
 195
 196
 197 wxHtmlWindow::~wxHtmlWindow()
 198 {
 199 #if wxUSE_CLIPBOARD
 200     StopAutoScrolling();
 201 #endif // wxUSE_CLIPBOARD
 202     HistoryClear();
 203
 204     if (m_Cell) delete m_Cell;
 205
 206     if ( m_Processors )
 207     {
 208         WX_CLEAR_LIST(wxHtmlProcessorList, *m_Processors);
 209     }
 210
 211     delete m_Parser;
 212     delete m_FS;
 213     delete m_History;
 214     delete m_Processors;
 215     delete m_backBuffer;
 216 }
 217
 218
 219
 220 void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
 221 {
 222     m_RelatedFrame = frame;
 223     m_TitleFormat = format;
 224 }
 225
 226
 227
 228 void wxHtmlWindow::SetRelatedStatusBar(int bar)
 229 {
 230     m_RelatedStatusBar = bar;
 231 }
 232
 233
 234
 235 void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes)
 236 {
 237     wxString op = m_OpenedPage;
 238
 239     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 240     // fonts changed => contents invalid, so reload the page:
 241     SetPage(wxT("<html><body></body></html>"));
 242     if (!op.IsEmpty()) LoadPage(op);
 243 }
 244
 245
 246
 247 bool wxHtmlWindow::SetPage(const wxString& source)
 248 {
 249     wxString newsrc(source);
 250
 251     wxDELETE(m_selection);
 252
 253     // pass HTML through registered processors:
 254     if (m_Processors || m_GlobalProcessors)
 255     {
 256         wxHtmlProcessorList::compatibility_iterator nodeL, nodeG;
 257         int prL, prG;
 258
 259         nodeL = (m_Processors) ? m_Processors->GetFirst() : wxHtmlProcessorList::compatibility_iterator();
 260         nodeG = (m_GlobalProcessors) ? m_GlobalProcessors->GetFirst() : wxHtmlProcessorList::compatibility_iterator();
 261
 262         // VS: there are two lists, global and local, both of them sorted by
 263         //     priority. Since we have to go through _both_ lists with
 264         //     decreasing priority, we "merge-sort" the lists on-line by
 265         //     processing that one of the two heads that has higher priority
 266         //     in every iteration
 267         while (nodeL || nodeG)
 268         {
 269             prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
 270             prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
 271             if (prL > prG)
 272             {
 273                 if (nodeL->GetData()->IsEnabled())
 274                     newsrc = nodeL->GetData()->Process(newsrc);
 275                 nodeL = nodeL->GetNext();
 276             }
 277             else // prL <= prG
 278             {
 279                 if (nodeG->GetData()->IsEnabled())
 280                     newsrc = nodeG->GetData()->Process(newsrc);
 281                 nodeG = nodeG->GetNext();
 282             }
 283         }
 284     }
 285
 286     // ...and run the parser on it:
 287     wxClientDC *dc = new wxClientDC(this);
 288     dc->SetMapMode(wxMM_TEXT);
 289     SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
 290     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 291     m_Parser->SetDC(dc);
 292     if (m_Cell)
 293     {
 294         delete m_Cell;
 295         m_Cell = NULL;
 296     }
 297     m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
 298     delete dc;
 299     m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 300     m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
 301     CreateLayout();
 302     if (m_tmpCanDrawLocks == 0)
 303         Refresh();
 304     return TRUE;
 305 }
 306
 307 bool wxHtmlWindow::AppendToPage(const wxString& source)
 308 {
 309     return SetPage(*(GetParser()->GetSource()) + source);
 310 }
 311
 312 bool wxHtmlWindow::LoadPage(const wxString& location)
 313 {
 314     wxBusyCursor busyCursor;
 315
 316     wxFSFile *f;
 317     bool rt_val;
 318     bool needs_refresh = FALSE;
 319
 320     m_tmpCanDrawLocks++;
 321     if (m_HistoryOn && (m_HistoryPos != -1))
 322     {
 323         // store scroll position into history item:
 324         int x, y;
 325         GetViewStart(&x, &y);
 326         (*m_History)[m_HistoryPos].SetPos(y);
 327     }
 328
 329     if (location[0] == wxT('#'))
 330     {
 331         // local anchor:
 332         wxString anch = location.Mid(1) /*1 to end*/;
 333         m_tmpCanDrawLocks--;
 334         rt_val = ScrollToAnchor(anch);
 335         m_tmpCanDrawLocks++;
 336     }
 337     else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
 338     {
 339         wxString anch = location.AfterFirst(wxT('#'));
 340         m_tmpCanDrawLocks--;
 341         rt_val = ScrollToAnchor(anch);
 342         m_tmpCanDrawLocks++;
 343     }
 344     else if (location.Find(wxT('#')) != wxNOT_FOUND &&
 345              (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
 346     {
 347         wxString anch = location.AfterFirst(wxT('#'));
 348         m_tmpCanDrawLocks--;
 349         rt_val = ScrollToAnchor(anch);
 350         m_tmpCanDrawLocks++;
 351     }
 352
 353     else
 354     {
 355         needs_refresh = TRUE;
 356         // load&display it:
 357         if (m_RelatedStatusBar != -1)
 358         {
 359             m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
 360             Refresh(FALSE);
 361         }
 362
 363         f = m_Parser->OpenURL(wxHTML_URL_PAGE, location);
 364
 365         // try to interpret 'location' as filename instead of URL:
 366         if (f == NULL)
 367         {
 368             wxFileName fn(location);
 369             wxString location2 = wxFileSystem::FileNameToURL(fn);
 370             f = m_Parser->OpenURL(wxHTML_URL_PAGE, location2);
 371         }
 372
 373         if (f == NULL)
 374         {
 375             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 376             m_tmpCanDrawLocks--;
 377             return FALSE;
 378         }
 379
 380         else
 381         {
 382             wxList::compatibility_iterator node;
 383             wxString src = wxEmptyString;
 384
 385             if (m_RelatedStatusBar != -1)
 386             {
 387                 wxString msg = _("Loading : ") + location;
 388                 m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
 389                 Refresh(FALSE);
 390             }
 391
 392             node = m_Filters.GetFirst();
 393             while (node)
 394             {
 395                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 396                 if (h->CanRead(*f))
 397                 {
 398                     src = h->ReadFile(*f);
 399                     break;
 400                 }
 401                 node = node->GetNext();
 402             }
 403             if (src == wxEmptyString)
 404             {
 405                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 406                 src = m_DefaultFilter->ReadFile(*f);
 407             }
 408
 409             m_FS->ChangePathTo(f->GetLocation());
 410             rt_val = SetPage(src);
 411             m_OpenedPage = f->GetLocation();
 412             if (f->GetAnchor() != wxEmptyString)
 413             {
 414                 ScrollToAnchor(f->GetAnchor());
 415             }
 416
 417             delete f;
 418
 419             if (m_RelatedStatusBar != -1) m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
 420         }
 421     }
 422
 423     if (m_HistoryOn) // add this page to history there:
 424     {
 425         int c = m_History->GetCount() - (m_HistoryPos + 1);
 426
 427         if (m_HistoryPos < 0 ||
 428             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 429             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 430         {
 431             m_HistoryPos++;
 432             for (int i = 0; i < c; i++)
 433                 m_History->RemoveAt(m_HistoryPos);
 434             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 435         }
 436     }
 437
 438     if (m_OpenedPageTitle == wxEmptyString)
 439         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 440
 441     if (needs_refresh)
 442     {
 443         m_tmpCanDrawLocks--;
 444         Refresh();
 445     }
 446     else
 447         m_tmpCanDrawLocks--;
 448
 449     return rt_val;
 450 }
 451
 452
 453 bool wxHtmlWindow::LoadFile(const wxFileName& filename)
 454 {
 455     wxString url = wxFileSystem::FileNameToURL(filename);
 456     return LoadPage(url);
 457 }
 458
 459
 460 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 461 {
 462     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 463     if (!c)
 464     {
 465         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 466         return FALSE;
 467     }
 468     else
 469     {
 470         int y;
 471
 472         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 473         Scroll(-1, y / wxHTML_SCROLL_STEP);
 474         m_OpenedAnchor = anchor;
 475         return TRUE;
 476     }
 477 }
 478
 479
 480 void wxHtmlWindow::OnSetTitle(const wxString& title)
 481 {
 482     if (m_RelatedFrame)
 483     {
 484         wxString tit;
 485         tit.Printf(m_TitleFormat, title.c_str());
 486         m_RelatedFrame->SetTitle(tit);
 487     }
 488     m_OpenedPageTitle = title;
 489 }
 490
 491
 492
 493
 494
 495 void wxHtmlWindow::CreateLayout()
 496 {
 497     int ClientWidth, ClientHeight;
 498
 499     if (!m_Cell) return;
 500
 501     if (m_Style & wxHW_SCROLLBAR_NEVER)
 502     {
 503         SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
 504         GetClientSize(&ClientWidth, &ClientHeight);
 505         m_Cell->Layout(ClientWidth);
 506     }
 507
 508     else {
 509         GetClientSize(&ClientWidth, &ClientHeight);
 510         m_Cell->Layout(ClientWidth);
 511         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 512         {
 513             SetScrollbars(
 514                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 515                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 516                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 517                   /*cheat: top-level frag is always container*/);
 518         }
 519         else /* we fit into window, no need for scrollbars */
 520         {
 521             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 522             GetClientSize(&ClientWidth, &ClientHeight);
 523             m_Cell->Layout(ClientWidth); // ...and relayout
 524         }
 525     }
 526 }
 527
 528
 529
 530 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 531 {
 532     wxString oldpath;
 533     wxString tmp;
 534     int p_fontsizes[7];
 535     wxString p_fff, p_ffn;
 536
 537     if (path != wxEmptyString)
 538     {
 539         oldpath = cfg->GetPath();
 540         cfg->SetPath(path);
 541     }
 542
 543     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 544     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 545     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 546     for (int i = 0; i < 7; i++)
 547     {
 548         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 549         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 550     }
 551     SetFonts(p_ffn, p_fff, p_fontsizes);
 552
 553     if (path != wxEmptyString)
 554         cfg->SetPath(oldpath);
 555 }
 556
 557
 558
 559 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 560 {
 561     wxString oldpath;
 562     wxString tmp;
 563
 564     if (path != wxEmptyString)
 565     {
 566         oldpath = cfg->GetPath();
 567         cfg->SetPath(path);
 568     }
 569
 570     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 571     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 572     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 573     for (int i = 0; i < 7; i++)
 574     {
 575         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 576         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 577     }
 578
 579     if (path != wxEmptyString)
 580         cfg->SetPath(oldpath);
 581 }
 582
 583
 584
 585 bool wxHtmlWindow::HistoryBack()
 586 {
 587     wxString a, l;
 588
 589     if (m_HistoryPos < 1) return FALSE;
 590
 591     // store scroll position into history item:
 592     int x, y;
 593     GetViewStart(&x, &y);
 594     (*m_History)[m_HistoryPos].SetPos(y);
 595
 596     // go to previous position:
 597     m_HistoryPos--;
 598
 599     l = (*m_History)[m_HistoryPos].GetPage();
 600     a = (*m_History)[m_HistoryPos].GetAnchor();
 601     m_HistoryOn = FALSE;
 602     m_tmpCanDrawLocks++;
 603     if (a == wxEmptyString) LoadPage(l);
 604     else LoadPage(l + wxT("#") + a);
 605     m_HistoryOn = TRUE;
 606     m_tmpCanDrawLocks--;
 607     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 608     Refresh();
 609     return TRUE;
 610 }
 611
 612 bool wxHtmlWindow::HistoryCanBack()
 613 {
 614     if (m_HistoryPos < 1) return FALSE;
 615     return TRUE ;
 616 }
 617
 618
 619 bool wxHtmlWindow::HistoryForward()
 620 {
 621     wxString a, l;
 622
 623     if (m_HistoryPos == -1) return FALSE;
 624     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
 625
 626     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 627
 628     m_HistoryPos++;
 629     l = (*m_History)[m_HistoryPos].GetPage();
 630     a = (*m_History)[m_HistoryPos].GetAnchor();
 631     m_HistoryOn = FALSE;
 632     m_tmpCanDrawLocks++;
 633     if (a == wxEmptyString) LoadPage(l);
 634     else LoadPage(l + wxT("#") + a);
 635     m_HistoryOn = TRUE;
 636     m_tmpCanDrawLocks--;
 637     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 638     Refresh();
 639     return TRUE;
 640 }
 641
 642 bool wxHtmlWindow::HistoryCanForward()
 643 {
 644     if (m_HistoryPos == -1) return FALSE;
 645     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
 646     return TRUE ;
 647 }
 648
 649
 650 void wxHtmlWindow::HistoryClear()
 651 {
 652     m_History->Empty();
 653     m_HistoryPos = -1;
 654 }
 655
 656 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 657 {
 658     if (!m_Processors)
 659     {
 660         m_Processors = new wxHtmlProcessorList;
 661     }
 662     wxHtmlProcessorList::compatibility_iterator node;
 663
 664     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 665     {
 666         if (processor->GetPriority() > node->GetData()->GetPriority())
 667         {
 668             m_Processors->Insert(node, processor);
 669             return;
 670         }
 671     }
 672     m_Processors->Append(processor);
 673 }
 674
 675 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 676 {
 677     if (!m_GlobalProcessors)
 678     {
 679         m_GlobalProcessors = new wxHtmlProcessorList;
 680     }
 681     wxHtmlProcessorList::compatibility_iterator node;
 682
 683     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 684     {
 685         if (processor->GetPriority() > node->GetData()->GetPriority())
 686         {
 687             m_GlobalProcessors->Insert(node, processor);
 688             return;
 689         }
 690     }
 691     m_GlobalProcessors->Append(processor);
 692 }
 693
 694
 695
 696 wxList wxHtmlWindow::m_Filters;
 697 wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
 698 wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
 699
 700 void wxHtmlWindow::CleanUpStatics()
 701 {
 702     wxDELETE(m_DefaultFilter);
 703     WX_CLEAR_LIST(wxList, m_Filters);
 704     if (m_GlobalProcessors)
 705         WX_CLEAR_LIST(wxHtmlProcessorList, *m_GlobalProcessors);
 706     wxDELETE(m_GlobalProcessors);
 707 }
 708
 709
 710
 711 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 712 {
 713     m_Filters.Append(filter);
 714 }
 715
 716
 717 bool wxHtmlWindow::IsSelectionEnabled() const
 718 {
 719 #if wxUSE_CLIPBOARD
 720     return !(m_Style & wxHW_NO_SELECTION);
 721 #else
 722     return false;
 723 #endif
 724 }
 725
 726
 727 #if wxUSE_CLIPBOARD
 728 wxString wxHtmlWindow::SelectionToText()
 729 {
 730     if ( !m_selection )
 731         return wxEmptyString;
 732
 733     wxClientDC dc(this);
 734
 735     const wxHtmlCell *end = m_selection->GetToCell();
 736     wxString text;
 737     wxHtmlTerminalCellsInterator i(m_selection->GetFromCell(), end);
 738     if ( i )
 739     {
 740         text << i->ConvertToText(m_selection);
 741         ++i;
 742     }
 743     const wxHtmlCell *prev = *i;
 744     while ( i )
 745     {
 746         if ( prev->GetParent() != i->GetParent() )
 747             text << _T('\n');
 748         text << i->ConvertToText(*i == end ? m_selection : NULL);
 749         prev = *i;
 750         ++i;
 751     }
 752     return text;
 753 }
 754
 755 #endif // wxUSE_CLIPBOARD
 756
 757 void wxHtmlWindow::CopySelection(ClipboardType t)
 758 {
 759 #if wxUSE_CLIPBOARD
 760     if ( m_selection )
 761     {
 762 #ifdef __UNIX__
 763         wxTheClipboard->UsePrimarySelection(t == Primary);
 764 #else // !__UNIX__
 765         // Primary selection exists only under X11, so don't do anything under
 766         // the other platforms when we try to access it
 767         //
 768         // TODO: this should be abstracted at wxClipboard level!
 769         if ( t == Primary )
 770             return;
 771 #endif // __UNIX__/!__UNIX__
 772
 773         if ( wxTheClipboard->Open() )
 774         {
 775             const wxString txt(SelectionToText());
 776             wxTheClipboard->SetData(new wxTextDataObject(txt));
 777             wxTheClipboard->Close();
 778             wxLogTrace(_T("wxhtmlselection"),
 779                        _("Copied to clipboard:\"%s\""), txt.c_str());
 780         }
 781     }
 782 #endif // wxUSE_CLIPBOARD
 783 }
 784
 785
 786 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 787 {
 788     const wxMouseEvent *e = link.GetEvent();
 789     if (e == NULL || e->LeftUp())
 790         LoadPage(link.GetHref());
 791 }
 792
 793 void wxHtmlWindow::OnCellClicked(wxHtmlCell *cell,
 794                                  wxCoord x, wxCoord y,
 795                                  const wxMouseEvent& event)
 796 {
 797     wxCHECK_RET( cell, _T("can't be called with NULL cell") );
 798
 799     cell->OnMouseClick(this, x, y, event);
 800 }
 801
 802 void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
 803                                     wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
 804 {
 805     // do nothing here
 806 }
 807
 808 void wxHtmlWindow::OnEraseBackground(wxEraseEvent& WXUNUSED(event))
 809 {
 810 }
 811
 812 void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
 813 {
 814     wxPaintDC dc(this);
 815
 816     if (m_tmpCanDrawLocks > 0 || m_Cell == NULL) return;
 817
 818     int x, y;
 819     GetViewStart(&x, &y);
 820     wxRect rect = GetUpdateRegion().GetBox();
 821     wxSize sz = GetSize();
 822
 823     wxMemoryDC dcm;
 824     if ( !m_backBuffer )
 825         m_backBuffer = new wxBitmap(sz.x, sz.y);
 826     dcm.SelectObject(*m_backBuffer);
 827     dcm.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
 828     dcm.Clear();
 829     PrepareDC(dcm);
 830     dcm.SetMapMode(wxMM_TEXT);
 831     dcm.SetBackgroundMode(wxTRANSPARENT);
 832
 833     wxHtmlRenderingInfo rinfo;
 834     wxDefaultHtmlRenderingStyle rstyle;
 835     rinfo.SetSelection(m_selection);
 836     rinfo.SetStyle(&rstyle);
 837     m_Cell->Draw(dcm, 0, 0,
 838                  y * wxHTML_SCROLL_STEP + rect.GetTop(),
 839                  y * wxHTML_SCROLL_STEP + rect.GetBottom(),
 840                  rinfo);
 841
 842 //#define DEBUG_HTML_SELECTION
 843 #ifdef DEBUG_HTML_SELECTION
 844     {
 845     int xc, yc, x, y;
 846     wxGetMousePosition(&xc, &yc);
 847     ScreenToClient(&xc, &yc);
 848     CalcUnscrolledPosition(xc, yc, &x, &y);
 849     wxHtmlCell *at = m_Cell->FindCellByPos(x, y);
 850     wxHtmlCell *before =
 851         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_BEFORE);
 852     wxHtmlCell *after =
 853         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_AFTER);
 854
 855     dcm.SetBrush(*wxTRANSPARENT_BRUSH);
 856     dcm.SetPen(*wxBLACK_PEN);
 857     if (at)
 858         dcm.DrawRectangle(at->GetAbsPos(),
 859                           wxSize(at->GetWidth(),at->GetHeight()));
 860     dcm.SetPen(*wxGREEN_PEN);
 861     if (before)
 862         dcm.DrawRectangle(before->GetAbsPos().x+1, before->GetAbsPos().y+1,
 863                           before->GetWidth()-2,before->GetHeight()-2);
 864     dcm.SetPen(*wxRED_PEN);
 865     if (after)
 866         dcm.DrawRectangle(after->GetAbsPos().x+2, after->GetAbsPos().y+2,
 867                           after->GetWidth()-4,after->GetHeight()-4);
 868     }
 869 #endif
 870
 871     dcm.SetDeviceOrigin(0,0);
 872     dc.Blit(0, rect.GetTop(),
 873             sz.x, rect.GetBottom() - rect.GetTop() + 1,
 874             &dcm,
 875             0, rect.GetTop());
 876 }
 877
 878
 879
 880
 881 void wxHtmlWindow::OnSize(wxSizeEvent& event)
 882 {
 883     wxDELETE(m_backBuffer);
 884
 885     wxScrolledWindow::OnSize(event);
 886     CreateLayout();
 887
 888     // Recompute selection if necessary:
 889     if ( m_selection )
 890     {
 891         m_selection->Set(m_selection->GetFromCell(),
 892                          m_selection->GetToCell());
 893         m_selection->ClearPrivPos();
 894     }
 895
 896     Refresh();
 897 }
 898
 899
 900 void wxHtmlWindow::OnMouseMove(wxMouseEvent& WXUNUSED(event))
 901 {
 902     m_tmpMouseMoved = true;
 903 }
 904
 905 void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
 906 {
 907 #if wxUSE_CLIPBOARD
 908     if ( event.LeftDown() && IsSelectionEnabled() )
 909     {
 910         const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
 911         if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
 912         {
 913             SelectLine(CalcUnscrolledPosition(event.GetPosition()));
 914
 915             CopySelection();
 916         }
 917         else
 918         {
 919             m_makingSelection = true;
 920
 921             if ( m_selection )
 922             {
 923                 wxDELETE(m_selection);
 924                 Refresh();
 925             }
 926             m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
 927             m_tmpSelFromCell = NULL;
 928
 929             CaptureMouse();
 930         }
 931     }
 932 #endif // wxUSE_CLIPBOARD
 933 }
 934
 935 void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
 936 {
 937 #if wxUSE_CLIPBOARD
 938     if ( m_makingSelection )
 939     {
 940         ReleaseMouse();
 941         m_makingSelection = false;
 942
 943         // did the user move the mouse far enough from starting point?
 944         if ( m_selection )
 945         {
 946             CopySelection(Primary);
 947
 948             // we don't want mouse up event that ended selecting to be
 949             // handled as mouse click and e.g. follow hyperlink:
 950             return;
 951         }
 952     }
 953 #endif // wxUSE_CLIPBOARD
 954
 955     SetFocus();
 956     if ( m_Cell )
 957     {
 958         wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
 959         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
 960
 961         // check is needed because FindCellByPos returns terminal cell and
 962         // containers may have empty borders -- in this case NULL will be
 963         // returned
 964         if ( cell )
 965             OnCellClicked(cell, pos.x, pos.y, event);
 966     }
 967 }
 968
 969
 970
 971 void wxHtmlWindow::OnInternalIdle()
 972 {
 973     wxWindow::OnInternalIdle();
 974
 975     if (m_tmpMouseMoved && (m_Cell != NULL))
 976     {
 977 #ifdef DEBUG_HTML_SELECTION
 978         Refresh();
 979 #endif
 980         int xc, yc, x, y;
 981         wxGetMousePosition(&xc, &yc);
 982         ScreenToClient(&xc, &yc);
 983         CalcUnscrolledPosition(xc, yc, &x, &y);
 984
 985         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
 986
 987         // handle selection update:
 988         if ( m_makingSelection )
 989         {
 990             if ( !m_tmpSelFromCell )
 991                 m_tmpSelFromCell = m_Cell->FindCellByPos(
 992                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y);
 993
 994             // NB: a trick - we adjust selFromPos to be upper left or bottom
 995             //     right corner of the first cell of the selection depending
 996             //     on whether the mouse is moving to the right or to the left.
 997             //     This gives us more "natural" behaviour when selecting
 998             //     a line (specifically, first cell of the next line is not
 999             //     included if you drag selection from left to right over
1000             //     entire line):
1001             wxPoint dirFromPos;
1002             if ( !m_tmpSelFromCell )
1003             {
1004                 dirFromPos = m_tmpSelFromPos;
1005             }
1006             else
1007             {
1008                 dirFromPos = m_tmpSelFromCell->GetAbsPos();
1009                 if ( x < m_tmpSelFromPos.x )
1010                 {
1011                     dirFromPos.x += m_tmpSelFromCell->GetWidth();
1012                     dirFromPos.y += m_tmpSelFromCell->GetHeight();
1013                 }
1014             }
1015             bool goingDown = dirFromPos.y < y ||
1016                              (dirFromPos.y == y && dirFromPos.x < x);
1017
1018             // determine selection span:
1019             if ( /*still*/ !m_tmpSelFromCell )
1020             {
1021                 if (goingDown)
1022                 {
1023                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1024                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1025                                          wxHTML_FIND_NEAREST_AFTER);
1026                     if (!m_tmpSelFromCell)
1027                         m_tmpSelFromCell = m_Cell->GetFirstTerminal();
1028                 }
1029                 else
1030                 {
1031                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1032                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1033                                          wxHTML_FIND_NEAREST_BEFORE);
1034                     if (!m_tmpSelFromCell)
1035                         m_tmpSelFromCell = m_Cell->GetLastTerminal();
1036                 }
1037             }
1038
1039             wxHtmlCell *selcell = cell;
1040             if (!selcell)
1041             {
1042                 if (goingDown)
1043                 {
1044                     selcell = m_Cell->FindCellByPos(x, y,
1045                                                  wxHTML_FIND_NEAREST_BEFORE);
1046                     if (!selcell)
1047                         selcell = m_Cell->GetLastTerminal();
1048                 }
1049                 else
1050                 {
1051                     selcell = m_Cell->FindCellByPos(x, y,
1052                                                  wxHTML_FIND_NEAREST_AFTER);
1053                     if (!selcell)
1054                         selcell = m_Cell->GetFirstTerminal();
1055                 }
1056             }
1057
1058             // NB: it may *rarely* happen that the code above didn't find one
1059             //     of the cells, e.g. if wxHtmlWindow doesn't contain any
1060             //     visible cells.
1061             if ( selcell && m_tmpSelFromCell )
1062             {
1063                 if ( !m_selection )
1064                 {
1065                     // start selecting only if mouse movement was big enough
1066                     // (otherwise it was meant as mouse click, not selection):
1067                     const int PRECISION = 2;
1068                     wxPoint diff = m_tmpSelFromPos - wxPoint(x,y);
1069                     if (abs(diff.x) > PRECISION || abs(diff.y) > PRECISION)
1070                     {
1071                         m_selection = new wxHtmlSelection();
1072                     }
1073                 }
1074                 if ( m_selection )
1075                 {
1076                     if ( m_tmpSelFromCell->IsBefore(selcell) )
1077                     {
1078                         m_selection->Set(m_tmpSelFromPos, m_tmpSelFromCell,
1079                                          wxPoint(x,y), selcell);                                    }
1080                     else
1081                     {
1082                         m_selection->Set(wxPoint(x,y), selcell,
1083                                          m_tmpSelFromPos, m_tmpSelFromCell);
1084                     }
1085                     m_selection->ClearPrivPos();
1086                     Refresh();
1087                 }
1088             }
1089         }
1090
1091         // handle cursor and status bar text changes:
1092         if ( cell != m_tmpLastCell )
1093         {
1094             wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL;
1095             wxCursor cur;
1096             if (cell)
1097                 cur = cell->GetCursor();
1098             else
1099                 cur = *wxSTANDARD_CURSOR;
1100             SetCursor(cur);
1101
1102             if (lnk != m_tmpLastLink)
1103             {
1104                 if (lnk == NULL)
1105                 {
1106                     if (m_RelatedStatusBar != -1)
1107                         m_RelatedFrame->SetStatusText(wxEmptyString,
1108                                                       m_RelatedStatusBar);
1109                 }
1110                 else
1111                 {
1112                     if (m_RelatedStatusBar != -1)
1113                         m_RelatedFrame->SetStatusText(lnk->GetHref(),
1114                                                       m_RelatedStatusBar);
1115                 }
1116                 m_tmpLastLink = lnk;
1117             }
1118
1119             m_tmpLastCell = cell;
1120         }
1121         else // mouse moved but stayed in the same cell
1122         {
1123             if ( cell )
1124                 OnCellMouseHover(cell, x, y);
1125         }
1126
1127         m_tmpMouseMoved = FALSE;
1128     }
1129 }
1130
1131 #if wxUSE_CLIPBOARD
1132 void wxHtmlWindow::StopAutoScrolling()
1133 {
1134     if ( m_timerAutoScroll )
1135     {
1136         wxDELETE(m_timerAutoScroll);
1137     }
1138 }
1139
1140 void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event)
1141 {
1142     StopAutoScrolling();
1143     event.Skip();
1144 }
1145
1146 void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
1147 {
1148     // don't prevent the usual processing of the event from taking place
1149     event.Skip();
1150
1151     // when a captured mouse leave a scrolled window we start generate
1152     // scrolling events to allow, for example, extending selection beyond the
1153     // visible area in some controls
1154     if ( wxWindow::GetCapture() == this )
1155     {
1156         // where is the mouse leaving?
1157         int pos, orient;
1158         wxPoint pt = event.GetPosition();
1159         if ( pt.x < 0 )
1160         {
1161             orient = wxHORIZONTAL;
1162             pos = 0;
1163         }
1164         else if ( pt.y < 0 )
1165         {
1166             orient = wxVERTICAL;
1167             pos = 0;
1168         }
1169         else // we're lower or to the right of the window
1170         {
1171             wxSize size = GetClientSize();
1172             if ( pt.x > size.x )
1173             {
1174                 orient = wxHORIZONTAL;
1175                 pos = GetVirtualSize().x / wxHTML_SCROLL_STEP;
1176             }
1177             else if ( pt.y > size.y )
1178             {
1179                 orient = wxVERTICAL;
1180                 pos = GetVirtualSize().y / wxHTML_SCROLL_STEP;
1181             }
1182             else // this should be impossible
1183             {
1184                 // but seems to happen sometimes under wxMSW - maybe it's a bug
1185                 // there but for now just ignore it
1186
1187                 //wxFAIL_MSG( _T("can't understand where has mouse gone") );
1188
1189                 return;
1190             }
1191         }
1192
1193         // only start the auto scroll timer if the window can be scrolled in
1194         // this direction
1195         if ( !HasScrollbar(orient) )
1196             return;
1197
1198         delete m_timerAutoScroll;
1199         m_timerAutoScroll = new wxHtmlWinAutoScrollTimer
1200                                 (
1201                                     this,
1202                                     pos == 0 ? wxEVT_SCROLLWIN_LINEUP
1203                                              : wxEVT_SCROLLWIN_LINEDOWN,
1204                                     pos,
1205                                     orient
1206                                 );
1207         m_timerAutoScroll->Start(50); // FIXME: make configurable
1208     }
1209 }
1210
1211 void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
1212 {
1213     if ( IsSelectionEnabled() &&
1214          event.GetKeyCode() == 'C' && event.ControlDown() )
1215     {
1216         if ( m_selection )
1217             CopySelection();
1218     }
1219 }
1220
1221 void wxHtmlWindow::OnCopy(wxCommandEvent& WXUNUSED(event))
1222 {
1223     if ( m_selection )
1224         CopySelection();
1225 }
1226
1227 void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event)
1228 {
1229     // select word under cursor:
1230     if ( IsSelectionEnabled() )
1231     {
1232         SelectWord(CalcUnscrolledPosition(event.GetPosition()));
1233
1234         CopySelection(Primary);
1235
1236         m_lastDoubleClick = wxGetLocalTimeMillis();
1237     }
1238     else
1239         event.Skip();
1240 }
1241
1242 void wxHtmlWindow::SelectWord(const wxPoint& pos)
1243 {
1244     wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1245     if ( cell )
1246     {
1247         delete m_selection;
1248         m_selection = new wxHtmlSelection();
1249         m_selection->Set(cell, cell);
1250         RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
1251                            wxSize(cell->GetWidth(), cell->GetHeight())));
1252     }
1253 }
1254
1255 void wxHtmlWindow::SelectLine(const wxPoint& pos)
1256 {
1257     wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1258     if ( cell )
1259     {
1260         // We use following heuristic to find a "line": let the line be all
1261         // cells in same container as the cell under mouse cursor that are
1262         // neither completely above nor completely bellow the clicked cell
1263         // (i.e. are likely to be words positioned on same line of text).
1264
1265         int y1 = cell->GetAbsPos().y;
1266         int y2 = y1 + cell->GetHeight();
1267         int y;
1268         const wxHtmlCell *c;
1269         const wxHtmlCell *before = NULL;
1270         const wxHtmlCell *after = NULL;
1271
1272         // find last cell of line:
1273         for ( c = cell->GetNext(); c; c = c->GetNext())
1274         {
1275             y = c->GetAbsPos().y;
1276             if ( y + c->GetHeight() > y1 && y < y2 )
1277                 after = c;
1278             else
1279                 break;
1280         }
1281         if ( !after )
1282             after = cell;
1283
1284         // find first cell of line:
1285         for ( c = cell->GetParent()->GetFirstChild();
1286                 c && c != cell; c = c->GetNext())
1287         {
1288             y = c->GetAbsPos().y;
1289             if ( y + c->GetHeight() > y1 && y < y2 )
1290             {
1291                 if ( ! before )
1292                     before = c;
1293             }
1294             else
1295                 before = NULL;
1296         }
1297         if ( !before )
1298             before = cell;
1299
1300         delete m_selection;
1301         m_selection = new wxHtmlSelection();
1302         m_selection->Set(before, after);
1303
1304         Refresh();
1305     }
1306 }
1307 #endif // wxUSE_CLIPBOARD
1308
1309
1310
1311 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
1312
1313 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
1314
1315 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
1316     EVT_SIZE(wxHtmlWindow::OnSize)
1317     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseDown)
1318     EVT_LEFT_UP(wxHtmlWindow::OnMouseUp)
1319     EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp)
1320     EVT_MOTION(wxHtmlWindow::OnMouseMove)
1321     EVT_ERASE_BACKGROUND(wxHtmlWindow::OnEraseBackground)
1322     EVT_PAINT(wxHtmlWindow::OnPaint)
1323 #if wxUSE_CLIPBOARD
1324     EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick)
1325     EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter)
1326     EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave)
1327     EVT_KEY_UP(wxHtmlWindow::OnKeyUp)
1328     EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy)
1329 #endif // wxUSE_CLIPBOARD
1330 END_EVENT_TABLE()
1331
1332
1333
1334
1335
1336 // A module to allow initialization/cleanup
1337 // without calling these functions from app.cpp or from
1338 // the user's application.
1339
1340 class wxHtmlWinModule: public wxModule
1341 {
1342 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
1343 public:
1344     wxHtmlWinModule() : wxModule() {}
1345     bool OnInit() { return TRUE; }
1346     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
1347 };
1348
1349 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
1350
1351
1352 // This hack forces the linker to always link in m_* files
1353 // (wxHTML doesn't work without handlers from these files)
1354 #include "wx/html/forcelnk.h"
1355 FORCE_WXHTML_MODULES()
1356
1357 #endif // wxUSE_HTML
1358