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 #include "wx/wxprec.h"
  11
  12 #include "wx/defs.h"
  13 #if wxUSE_HTML && wxUSE_STREAMS
  14
  15 #ifdef __BORLANDC__
  16 #pragma hdrstop
  17 #endif
  18
  19 #ifndef WXPRECOMP
  20     #include "wx/log.h"
  21     #include "wx/intl.h"
  22     #include "wx/dcclient.h"
  23     #include "wx/frame.h"
  24 #endif
  25
  26 #include "wx/html/htmlwin.h"
  27 #include "wx/html/htmlproc.h"
  28 #include "wx/list.h"
  29 #include "wx/clipbrd.h"
  30 #include "wx/dataobj.h"
  31 #include "wx/timer.h"
  32 #include "wx/dcmemory.h"
  33 #include "wx/settings.h"
  34
  35 #include "wx/arrimpl.cpp"
  36 #include "wx/listimpl.cpp"
  37
  38
  39 #if wxUSE_CLIPBOARD
  40 // ----------------------------------------------------------------------------
  41 // wxHtmlWinAutoScrollTimer: the timer used to generate a stream of scroll
  42 // events when a captured mouse is held outside the window
  43 // ----------------------------------------------------------------------------
  44
  45 class wxHtmlWinAutoScrollTimer : public wxTimer
  46 {
  47 public:
  48     wxHtmlWinAutoScrollTimer(wxScrolledWindow *win,
  49                       wxEventType eventTypeToSend,
  50                       int pos, int orient)
  51     {
  52         m_win = win;
  53         m_eventType = eventTypeToSend;
  54         m_pos = pos;
  55         m_orient = orient;
  56     }
  57
  58     virtual void Notify();
  59
  60 private:
  61     wxScrolledWindow *m_win;
  62     wxEventType m_eventType;
  63     int m_pos,
  64         m_orient;
  65
  66     DECLARE_NO_COPY_CLASS(wxHtmlWinAutoScrollTimer)
  67 };
  68
  69 void wxHtmlWinAutoScrollTimer::Notify()
  70 {
  71     // only do all this as long as the window is capturing the mouse
  72     if ( wxWindow::GetCapture() != m_win )
  73     {
  74         Stop();
  75     }
  76     else // we still capture the mouse, continue generating events
  77     {
  78         // first scroll the window if we are allowed to do it
  79         wxScrollWinEvent event1(m_eventType, m_pos, m_orient);
  80         event1.SetEventObject(m_win);
  81         if ( m_win->GetEventHandler()->ProcessEvent(event1) )
  82         {
  83             // and then send a pseudo mouse-move event to refresh the selection
  84             wxMouseEvent event2(wxEVT_MOTION);
  85             wxGetMousePosition(&event2.m_x, &event2.m_y);
  86
  87             // the mouse event coordinates should be client, not screen as
  88             // returned by wxGetMousePosition
  89             wxWindow *parentTop = m_win;
  90             while ( parentTop->GetParent() )
  91                 parentTop = parentTop->GetParent();
  92             wxPoint ptOrig = parentTop->GetPosition();
  93             event2.m_x -= ptOrig.x;
  94             event2.m_y -= ptOrig.y;
  95
  96             event2.SetEventObject(m_win);
  97
  98             // FIXME: we don't fill in the other members - ok?
  99             m_win->GetEventHandler()->ProcessEvent(event2);
 100         }
 101         else // can't scroll further, stop
 102         {
 103             Stop();
 104         }
 105     }
 106 }
 107
 108 #endif // wxUSE_CLIPBOARD
 109
 110
 111
 112 //-----------------------------------------------------------------------------
 113 // wxHtmlHistoryItem
 114 //-----------------------------------------------------------------------------
 115
 116 // item of history list
 117 class WXDLLIMPEXP_HTML wxHtmlHistoryItem
 118 {
 119 public:
 120     wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
 121     int GetPos() const {return m_Pos;}
 122     void SetPos(int p) {m_Pos = p;}
 123     const wxString& GetPage() const {return m_Page;}
 124     const wxString& GetAnchor() const {return m_Anchor;}
 125
 126 private:
 127     wxString m_Page;
 128     wxString m_Anchor;
 129     int m_Pos;
 130 };
 131
 132
 133 //-----------------------------------------------------------------------------
 134 // our private arrays:
 135 //-----------------------------------------------------------------------------
 136
 137 WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
 138 WX_DEFINE_OBJARRAY(wxHtmlHistoryArray);
 139
 140 WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
 141 WX_DEFINE_LIST(wxHtmlProcessorList);
 142
 143 //-----------------------------------------------------------------------------
 144 // wxHtmlWindow
 145 //-----------------------------------------------------------------------------
 146
 147
 148 void wxHtmlWindow::Init()
 149 {
 150     m_tmpMouseMoved = false;
 151     m_tmpLastLink = NULL;
 152     m_tmpLastCell = NULL;
 153     m_tmpCanDrawLocks = 0;
 154     m_FS = new wxFileSystem();
 155 #if wxUSE_STATUSBAR
 156     m_RelatedStatusBar = -1;
 157 #endif // wxUSE_STATUSBAR
 158     m_RelatedFrame = NULL;
 159     m_TitleFormat = wxT("%s");
 160     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 161     m_Cell = NULL;
 162     m_Parser = new wxHtmlWinParser(this);
 163     m_Parser->SetFS(m_FS);
 164     m_HistoryPos = -1;
 165     m_HistoryOn = true;
 166     m_History = new wxHtmlHistoryArray;
 167     m_Processors = NULL;
 168     m_Style = 0;
 169     SetBorders(10);
 170     m_selection = NULL;
 171     m_makingSelection = false;
 172 #if wxUSE_CLIPBOARD
 173     m_timerAutoScroll = NULL;
 174     m_lastDoubleClick = 0;
 175 #endif // wxUSE_CLIPBOARD
 176     m_backBuffer = NULL;
 177     m_eraseBgInOnPaint = false;
 178     m_tmpSelFromCell = NULL;
 179 }
 180
 181 bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
 182                           const wxPoint& pos, const wxSize& size,
 183                           long style, const wxString& name)
 184 {
 185     if (!wxScrolledWindow::Create(parent, id, pos, size,
 186                                   style | wxVSCROLL | wxHSCROLL,
 187                                   name))
 188         return false;
 189
 190     m_Style = style;
 191     SetPage(wxT("<html><body></body></html>"));
 192     return true;
 193 }
 194
 195
 196 wxHtmlWindow::~wxHtmlWindow()
 197 {
 198 #if wxUSE_CLIPBOARD
 199     StopAutoScrolling();
 200 #endif // wxUSE_CLIPBOARD
 201     HistoryClear();
 202
 203     delete m_selection;
 204
 205     delete m_Cell;
 206
 207     if ( m_Processors )
 208     {
 209         WX_CLEAR_LIST(wxHtmlProcessorList, *m_Processors);
 210     }
 211
 212     delete m_Parser;
 213     delete m_FS;
 214     delete m_History;
 215     delete m_Processors;
 216     delete m_backBuffer;
 217 }
 218
 219
 220
 221 void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
 222 {
 223     m_RelatedFrame = frame;
 224     m_TitleFormat = format;
 225 }
 226
 227
 228
 229 #if wxUSE_STATUSBAR
 230 void wxHtmlWindow::SetRelatedStatusBar(int bar)
 231 {
 232     m_RelatedStatusBar = bar;
 233 }
 234 #endif // wxUSE_STATUSBAR
 235
 236
 237
 238 void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes)
 239 {
 240     wxString op = m_OpenedPage;
 241
 242     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 243     // fonts changed => contents invalid, so reload the page:
 244     SetPage(wxT("<html><body></body></html>"));
 245     if (!op.empty())
 246         LoadPage(op);
 247 }
 248
 249 void wxHtmlWindow::SetStandardFonts(int size,
 250                                     const wxString& normal_face,
 251                                     const wxString& fixed_face)
 252 {
 253     wxString op = m_OpenedPage;
 254
 255     m_Parser->SetStandardFonts(size, normal_face, fixed_face);
 256     // fonts changed => contents invalid, so reload the page:
 257     SetPage(wxT("<html><body></body></html>"));
 258     if (!op.empty())
 259         LoadPage(op);
 260 }
 261
 262
 263 bool wxHtmlWindow::SetPage(const wxString& source)
 264 {
 265     wxString newsrc(source);
 266
 267     wxDELETE(m_selection);
 268
 269     // we will soon delete all the cells, so clear pointers to them:
 270     m_tmpSelFromCell = NULL;
 271
 272     // pass HTML through registered processors:
 273     if (m_Processors || m_GlobalProcessors)
 274     {
 275         wxHtmlProcessorList::compatibility_iterator nodeL, nodeG;
 276         int prL, prG;
 277
 278         nodeL = (m_Processors) ? m_Processors->GetFirst() : wxHtmlProcessorList::compatibility_iterator();
 279         nodeG = (m_GlobalProcessors) ? m_GlobalProcessors->GetFirst() : wxHtmlProcessorList::compatibility_iterator();
 280
 281         // VS: there are two lists, global and local, both of them sorted by
 282         //     priority. Since we have to go through _both_ lists with
 283         //     decreasing priority, we "merge-sort" the lists on-line by
 284         //     processing that one of the two heads that has higher priority
 285         //     in every iteration
 286         while (nodeL || nodeG)
 287         {
 288             prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
 289             prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
 290             if (prL > prG)
 291             {
 292                 if (nodeL->GetData()->IsEnabled())
 293                     newsrc = nodeL->GetData()->Process(newsrc);
 294                 nodeL = nodeL->GetNext();
 295             }
 296             else // prL <= prG
 297             {
 298                 if (nodeG->GetData()->IsEnabled())
 299                     newsrc = nodeG->GetData()->Process(newsrc);
 300                 nodeG = nodeG->GetNext();
 301             }
 302         }
 303     }
 304
 305     // ...and run the parser on it:
 306     wxClientDC *dc = new wxClientDC(this);
 307     dc->SetMapMode(wxMM_TEXT);
 308     SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
 309     SetBackgroundImage(wxNullBitmap);
 310     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 311     m_Parser->SetDC(dc);
 312     if (m_Cell)
 313     {
 314         delete m_Cell;
 315         m_Cell = NULL;
 316     }
 317     m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
 318     delete dc;
 319     m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 320     m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
 321     CreateLayout();
 322     if (m_tmpCanDrawLocks == 0)
 323         Refresh();
 324     return true;
 325 }
 326
 327 bool wxHtmlWindow::AppendToPage(const wxString& source)
 328 {
 329     return SetPage(*(GetParser()->GetSource()) + source);
 330 }
 331
 332 bool wxHtmlWindow::LoadPage(const wxString& location)
 333 {
 334     wxBusyCursor busyCursor;
 335
 336     wxFSFile *f;
 337     bool rt_val;
 338     bool needs_refresh = false;
 339
 340     m_tmpCanDrawLocks++;
 341     if (m_HistoryOn && (m_HistoryPos != -1))
 342     {
 343         // store scroll position into history item:
 344         int x, y;
 345         GetViewStart(&x, &y);
 346         (*m_History)[m_HistoryPos].SetPos(y);
 347     }
 348
 349     if (location[0] == wxT('#'))
 350     {
 351         // local anchor:
 352         wxString anch = location.Mid(1) /*1 to end*/;
 353         m_tmpCanDrawLocks--;
 354         rt_val = ScrollToAnchor(anch);
 355         m_tmpCanDrawLocks++;
 356     }
 357     else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
 358     {
 359         wxString anch = location.AfterFirst(wxT('#'));
 360         m_tmpCanDrawLocks--;
 361         rt_val = ScrollToAnchor(anch);
 362         m_tmpCanDrawLocks++;
 363     }
 364     else if (location.Find(wxT('#')) != wxNOT_FOUND &&
 365              (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
 366     {
 367         wxString anch = location.AfterFirst(wxT('#'));
 368         m_tmpCanDrawLocks--;
 369         rt_val = ScrollToAnchor(anch);
 370         m_tmpCanDrawLocks++;
 371     }
 372
 373     else
 374     {
 375         needs_refresh = true;
 376 #if wxUSE_STATUSBAR
 377         // load&display it:
 378         if (m_RelatedStatusBar != -1)
 379         {
 380             m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
 381             Refresh(false);
 382         }
 383 #endif // wxUSE_STATUSBAR
 384
 385         f = m_Parser->OpenURL(wxHTML_URL_PAGE, location);
 386
 387         // try to interpret 'location' as filename instead of URL:
 388         if (f == NULL)
 389         {
 390             wxFileName fn(location);
 391             wxString location2 = wxFileSystem::FileNameToURL(fn);
 392             f = m_Parser->OpenURL(wxHTML_URL_PAGE, location2);
 393         }
 394
 395         if (f == NULL)
 396         {
 397             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 398             m_tmpCanDrawLocks--;
 399             return false;
 400         }
 401
 402         else
 403         {
 404             wxList::compatibility_iterator node;
 405             wxString src = wxEmptyString;
 406
 407 #if wxUSE_STATUSBAR
 408             if (m_RelatedStatusBar != -1)
 409             {
 410                 wxString msg = _("Loading : ") + location;
 411                 m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
 412                 Refresh(false);
 413             }
 414 #endif // wxUSE_STATUSBAR
 415
 416             node = m_Filters.GetFirst();
 417             while (node)
 418             {
 419                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 420                 if (h->CanRead(*f))
 421                 {
 422                     src = h->ReadFile(*f);
 423                     break;
 424                 }
 425                 node = node->GetNext();
 426             }
 427             if (src == wxEmptyString)
 428             {
 429                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 430                 src = m_DefaultFilter->ReadFile(*f);
 431             }
 432
 433             m_FS->ChangePathTo(f->GetLocation());
 434             rt_val = SetPage(src);
 435             m_OpenedPage = f->GetLocation();
 436             if (f->GetAnchor() != wxEmptyString)
 437             {
 438                 ScrollToAnchor(f->GetAnchor());
 439             }
 440
 441             delete f;
 442
 443 #if wxUSE_STATUSBAR
 444             if (m_RelatedStatusBar != -1)
 445                 m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
 446 #endif // wxUSE_STATUSBAR
 447         }
 448     }
 449
 450     if (m_HistoryOn) // add this page to history there:
 451     {
 452         int c = m_History->GetCount() - (m_HistoryPos + 1);
 453
 454         if (m_HistoryPos < 0 ||
 455             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 456             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 457         {
 458             m_HistoryPos++;
 459             for (int i = 0; i < c; i++)
 460                 m_History->RemoveAt(m_HistoryPos);
 461             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 462         }
 463     }
 464
 465     if (m_OpenedPageTitle == wxEmptyString)
 466         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 467
 468     if (needs_refresh)
 469     {
 470         m_tmpCanDrawLocks--;
 471         Refresh();
 472     }
 473     else
 474         m_tmpCanDrawLocks--;
 475
 476     return rt_val;
 477 }
 478
 479
 480 bool wxHtmlWindow::LoadFile(const wxFileName& filename)
 481 {
 482     wxString url = wxFileSystem::FileNameToURL(filename);
 483     return LoadPage(url);
 484 }
 485
 486
 487 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 488 {
 489     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 490     if (!c)
 491     {
 492         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 493         return false;
 494     }
 495     else
 496     {
 497         int y;
 498
 499         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 500         Scroll(-1, y / wxHTML_SCROLL_STEP);
 501         m_OpenedAnchor = anchor;
 502         return true;
 503     }
 504 }
 505
 506
 507 void wxHtmlWindow::OnSetTitle(const wxString& title)
 508 {
 509     if (m_RelatedFrame)
 510     {
 511         wxString tit;
 512         tit.Printf(m_TitleFormat, title.c_str());
 513         m_RelatedFrame->SetTitle(tit);
 514     }
 515     m_OpenedPageTitle = title;
 516 }
 517
 518
 519
 520
 521
 522 void wxHtmlWindow::CreateLayout()
 523 {
 524     int ClientWidth, ClientHeight;
 525
 526     if (!m_Cell) return;
 527
 528     if (m_Style & wxHW_SCROLLBAR_NEVER)
 529     {
 530         SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
 531         GetClientSize(&ClientWidth, &ClientHeight);
 532         m_Cell->Layout(ClientWidth);
 533     }
 534
 535     else {
 536         GetClientSize(&ClientWidth, &ClientHeight);
 537         m_Cell->Layout(ClientWidth);
 538         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 539         {
 540             SetScrollbars(
 541                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 542                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 543                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 544                   /*cheat: top-level frag is always container*/);
 545         }
 546         else /* we fit into window, no need for scrollbars */
 547         {
 548             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 549             GetClientSize(&ClientWidth, &ClientHeight);
 550             m_Cell->Layout(ClientWidth); // ...and relayout
 551         }
 552     }
 553 }
 554
 555
 556
 557 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 558 {
 559     wxString oldpath;
 560     wxString tmp;
 561     int p_fontsizes[7];
 562     wxString p_fff, p_ffn;
 563
 564     if (path != wxEmptyString)
 565     {
 566         oldpath = cfg->GetPath();
 567         cfg->SetPath(path);
 568     }
 569
 570     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 571     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 572     p_ffn = cfg->Read(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         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 577     }
 578     SetFonts(p_ffn, p_fff, p_fontsizes);
 579
 580     if (path != wxEmptyString)
 581         cfg->SetPath(oldpath);
 582 }
 583
 584
 585
 586 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 587 {
 588     wxString oldpath;
 589     wxString tmp;
 590
 591     if (path != wxEmptyString)
 592     {
 593         oldpath = cfg->GetPath();
 594         cfg->SetPath(path);
 595     }
 596
 597     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 598     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 599     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 600     for (int i = 0; i < 7; i++)
 601     {
 602         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 603         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 604     }
 605
 606     if (path != wxEmptyString)
 607         cfg->SetPath(oldpath);
 608 }
 609
 610
 611
 612 bool wxHtmlWindow::HistoryBack()
 613 {
 614     wxString a, l;
 615
 616     if (m_HistoryPos < 1) return false;
 617
 618     // store scroll position into history item:
 619     int x, y;
 620     GetViewStart(&x, &y);
 621     (*m_History)[m_HistoryPos].SetPos(y);
 622
 623     // go to previous position:
 624     m_HistoryPos--;
 625
 626     l = (*m_History)[m_HistoryPos].GetPage();
 627     a = (*m_History)[m_HistoryPos].GetAnchor();
 628     m_HistoryOn = false;
 629     m_tmpCanDrawLocks++;
 630     if (a == wxEmptyString) LoadPage(l);
 631     else LoadPage(l + wxT("#") + a);
 632     m_HistoryOn = true;
 633     m_tmpCanDrawLocks--;
 634     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 635     Refresh();
 636     return true;
 637 }
 638
 639 bool wxHtmlWindow::HistoryCanBack()
 640 {
 641     if (m_HistoryPos < 1) return false;
 642     return true ;
 643 }
 644
 645
 646 bool wxHtmlWindow::HistoryForward()
 647 {
 648     wxString a, l;
 649
 650     if (m_HistoryPos == -1) return false;
 651     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 652
 653     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 654
 655     m_HistoryPos++;
 656     l = (*m_History)[m_HistoryPos].GetPage();
 657     a = (*m_History)[m_HistoryPos].GetAnchor();
 658     m_HistoryOn = false;
 659     m_tmpCanDrawLocks++;
 660     if (a == wxEmptyString) LoadPage(l);
 661     else LoadPage(l + wxT("#") + a);
 662     m_HistoryOn = true;
 663     m_tmpCanDrawLocks--;
 664     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 665     Refresh();
 666     return true;
 667 }
 668
 669 bool wxHtmlWindow::HistoryCanForward()
 670 {
 671     if (m_HistoryPos == -1) return false;
 672     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 673     return true ;
 674 }
 675
 676
 677 void wxHtmlWindow::HistoryClear()
 678 {
 679     m_History->Empty();
 680     m_HistoryPos = -1;
 681 }
 682
 683 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 684 {
 685     if (!m_Processors)
 686     {
 687         m_Processors = new wxHtmlProcessorList;
 688     }
 689     wxHtmlProcessorList::compatibility_iterator node;
 690
 691     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 692     {
 693         if (processor->GetPriority() > node->GetData()->GetPriority())
 694         {
 695             m_Processors->Insert(node, processor);
 696             return;
 697         }
 698     }
 699     m_Processors->Append(processor);
 700 }
 701
 702 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 703 {
 704     if (!m_GlobalProcessors)
 705     {
 706         m_GlobalProcessors = new wxHtmlProcessorList;
 707     }
 708     wxHtmlProcessorList::compatibility_iterator node;
 709
 710     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 711     {
 712         if (processor->GetPriority() > node->GetData()->GetPriority())
 713         {
 714             m_GlobalProcessors->Insert(node, processor);
 715             return;
 716         }
 717     }
 718     m_GlobalProcessors->Append(processor);
 719 }
 720
 721
 722
 723 wxList wxHtmlWindow::m_Filters;
 724 wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
 725 wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
 726
 727 void wxHtmlWindow::CleanUpStatics()
 728 {
 729     wxDELETE(m_DefaultFilter);
 730     WX_CLEAR_LIST(wxList, m_Filters);
 731     if (m_GlobalProcessors)
 732         WX_CLEAR_LIST(wxHtmlProcessorList, *m_GlobalProcessors);
 733     wxDELETE(m_GlobalProcessors);
 734 }
 735
 736
 737
 738 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 739 {
 740     m_Filters.Append(filter);
 741 }
 742
 743
 744 bool wxHtmlWindow::IsSelectionEnabled() const
 745 {
 746 #if wxUSE_CLIPBOARD
 747     return !(m_Style & wxHW_NO_SELECTION);
 748 #else
 749     return false;
 750 #endif
 751 }
 752
 753
 754 #if wxUSE_CLIPBOARD
 755 wxString wxHtmlWindow::DoSelectionToText(wxHtmlSelection *sel)
 756 {
 757     if ( !sel )
 758         return wxEmptyString;
 759
 760     wxClientDC dc(this);
 761
 762     const wxHtmlCell *end = sel->GetToCell();
 763     wxString text;
 764     wxHtmlTerminalCellsInterator i(sel->GetFromCell(), end);
 765     if ( i )
 766     {
 767         text << i->ConvertToText(sel);
 768         ++i;
 769     }
 770     const wxHtmlCell *prev = *i;
 771     while ( i )
 772     {
 773         if ( prev->GetParent() != i->GetParent() )
 774             text << _T('\n');
 775         text << i->ConvertToText(*i == end ? sel : NULL);
 776         prev = *i;
 777         ++i;
 778     }
 779     return text;
 780 }
 781
 782 wxString wxHtmlWindow::ToText()
 783 {
 784     if (m_Cell)
 785     {
 786         wxHtmlSelection sel;
 787         sel.Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
 788         return DoSelectionToText(&sel);
 789     }
 790     else
 791         return wxEmptyString;
 792 }
 793
 794 #endif // wxUSE_CLIPBOARD
 795
 796 bool wxHtmlWindow::CopySelection(ClipboardType t)
 797 {
 798 #if wxUSE_CLIPBOARD
 799     if ( m_selection )
 800     {
 801 #if defined(__UNIX__) && !defined(__WXMAC__)
 802         wxTheClipboard->UsePrimarySelection(t == Primary);
 803 #else // !__UNIX__
 804         // Primary selection exists only under X11, so don't do anything under
 805         // the other platforms when we try to access it
 806         //
 807         // TODO: this should be abstracted at wxClipboard level!
 808         if ( t == Primary )
 809             return false;
 810 #endif // __UNIX__/!__UNIX__
 811
 812         if ( wxTheClipboard->Open() )
 813         {
 814             const wxString txt(SelectionToText());
 815             wxTheClipboard->SetData(new wxTextDataObject(txt));
 816             wxTheClipboard->Close();
 817             wxLogTrace(_T("wxhtmlselection"),
 818                        _("Copied to clipboard:\"%s\""), txt.c_str());
 819
 820             return true;
 821         }
 822     }
 823 #else
 824     wxUnusedVar(t);
 825 #endif // wxUSE_CLIPBOARD
 826
 827     return false;
 828 }
 829
 830
 831 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 832 {
 833     const wxMouseEvent *e = link.GetEvent();
 834     if (e == NULL || e->LeftUp())
 835         LoadPage(link.GetHref());
 836 }
 837
 838 void wxHtmlWindow::OnCellClicked(wxHtmlCell *cell,
 839                                  wxCoord x, wxCoord y,
 840                                  const wxMouseEvent& event)
 841 {
 842     wxCHECK_RET( cell, _T("can't be called with NULL cell") );
 843
 844     cell->OnMouseClick(this, x, y, event);
 845 }
 846
 847 void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
 848                                     wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
 849 {
 850     // do nothing here
 851 }
 852
 853 void wxHtmlWindow::OnEraseBackground(wxEraseEvent& event)
 854 {
 855     if ( !m_bmpBg.Ok() )
 856     {
 857         // don't even skip the event, if we don't have a bg bitmap we're going
 858         // to overwrite background in OnPaint() below anyhow, so letting the
 859         // default handling take place would only result in flicker, just set a
 860         // flag to erase the background below
 861         m_eraseBgInOnPaint = true;
 862         return;
 863     }
 864
 865     wxDC& dc = *event.GetDC();
 866
 867     // if the image is not fully opaque, we have to erase the background before
 868     // drawing it, however avoid doing it for opaque images as this would just
 869     // result in extra flicker without any other effect as background is
 870     // completely covered anyhow
 871     if ( m_bmpBg.GetMask() )
 872     {
 873         dc.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
 874         dc.Clear();
 875     }
 876
 877     const wxSize sizeWin(GetClientSize());
 878     const wxSize sizeBmp(m_bmpBg.GetWidth(), m_bmpBg.GetHeight());
 879     for ( wxCoord x = 0; x < sizeWin.x; x += sizeBmp.x )
 880     {
 881         for ( wxCoord y = 0; y < sizeWin.y; y += sizeBmp.y )
 882         {
 883             dc.DrawBitmap(m_bmpBg, x, y, true /* use mask */);
 884         }
 885     }
 886 }
 887
 888 void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
 889 {
 890     wxPaintDC dc(this);
 891
 892     if (m_tmpCanDrawLocks > 0 || m_Cell == NULL)
 893         return;
 894
 895     int x, y;
 896     GetViewStart(&x, &y);
 897     wxRect rect = GetUpdateRegion().GetBox();
 898     wxSize sz = GetSize();
 899
 900     wxMemoryDC dcm;
 901     if ( !m_backBuffer )
 902         m_backBuffer = new wxBitmap(sz.x, sz.y);
 903     dcm.SelectObject(*m_backBuffer);
 904
 905     if ( m_eraseBgInOnPaint )
 906     {
 907         dcm.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
 908         dcm.Clear();
 909
 910         m_eraseBgInOnPaint = false;
 911     }
 912     else // someone has already erased the background, keep it
 913     {
 914         // preserve the existing background, otherwise we'd erase anything the
 915         // user code had drawn in its EVT_ERASE_BACKGROUND handler when we do
 916         // the Blit back below
 917         dcm.Blit(0, rect.GetTop(),
 918                  sz.x, rect.GetBottom() - rect.GetTop() + 1,
 919                  &dc,
 920                  0, rect.GetTop());
 921     }
 922
 923     PrepareDC(dcm);
 924     dcm.SetMapMode(wxMM_TEXT);
 925     dcm.SetBackgroundMode(wxTRANSPARENT);
 926
 927     wxHtmlRenderingInfo rinfo;
 928     wxDefaultHtmlRenderingStyle rstyle;
 929     rinfo.SetSelection(m_selection);
 930     rinfo.SetStyle(&rstyle);
 931     m_Cell->Draw(dcm, 0, 0,
 932                  y * wxHTML_SCROLL_STEP + rect.GetTop(),
 933                  y * wxHTML_SCROLL_STEP + rect.GetBottom(),
 934                  rinfo);
 935
 936 //#define DEBUG_HTML_SELECTION
 937 #ifdef DEBUG_HTML_SELECTION
 938     {
 939     int xc, yc, x, y;
 940     wxGetMousePosition(&xc, &yc);
 941     ScreenToClient(&xc, &yc);
 942     CalcUnscrolledPosition(xc, yc, &x, &y);
 943     wxHtmlCell *at = m_Cell->FindCellByPos(x, y);
 944     wxHtmlCell *before =
 945         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_BEFORE);
 946     wxHtmlCell *after =
 947         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_AFTER);
 948
 949     dcm.SetBrush(*wxTRANSPARENT_BRUSH);
 950     dcm.SetPen(*wxBLACK_PEN);
 951     if (at)
 952         dcm.DrawRectangle(at->GetAbsPos(),
 953                           wxSize(at->GetWidth(),at->GetHeight()));
 954     dcm.SetPen(*wxGREEN_PEN);
 955     if (before)
 956         dcm.DrawRectangle(before->GetAbsPos().x+1, before->GetAbsPos().y+1,
 957                           before->GetWidth()-2,before->GetHeight()-2);
 958     dcm.SetPen(*wxRED_PEN);
 959     if (after)
 960         dcm.DrawRectangle(after->GetAbsPos().x+2, after->GetAbsPos().y+2,
 961                           after->GetWidth()-4,after->GetHeight()-4);
 962     }
 963 #endif
 964
 965     dcm.SetDeviceOrigin(0,0);
 966     dc.Blit(0, rect.GetTop(),
 967             sz.x, rect.GetBottom() - rect.GetTop() + 1,
 968             &dcm,
 969             0, rect.GetTop());
 970 }
 971
 972
 973
 974
 975 void wxHtmlWindow::OnSize(wxSizeEvent& event)
 976 {
 977     wxDELETE(m_backBuffer);
 978
 979     wxScrolledWindow::OnSize(event);
 980     CreateLayout();
 981
 982     // Recompute selection if necessary:
 983     if ( m_selection )
 984     {
 985         m_selection->Set(m_selection->GetFromCell(),
 986                          m_selection->GetToCell());
 987         m_selection->ClearPrivPos();
 988     }
 989
 990     Refresh();
 991 }
 992
 993
 994 void wxHtmlWindow::OnMouseMove(wxMouseEvent& WXUNUSED(event))
 995 {
 996     m_tmpMouseMoved = true;
 997 }
 998
 999 void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
1000 {
1001 #if wxUSE_CLIPBOARD
1002     if ( event.LeftDown() && IsSelectionEnabled() )
1003     {
1004         const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
1005         if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
1006         {
1007             SelectLine(CalcUnscrolledPosition(event.GetPosition()));
1008
1009             (void) CopySelection();
1010         }
1011         else
1012         {
1013             m_makingSelection = true;
1014
1015             if ( m_selection )
1016             {
1017                 wxDELETE(m_selection);
1018                 Refresh();
1019             }
1020             m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
1021             m_tmpSelFromCell = NULL;
1022
1023             CaptureMouse();
1024         }
1025     }
1026 #else
1027     wxUnusedVar(event);
1028 #endif // wxUSE_CLIPBOARD
1029 }
1030
1031 void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
1032 {
1033 #if wxUSE_CLIPBOARD
1034     if ( m_makingSelection )
1035     {
1036         ReleaseMouse();
1037         m_makingSelection = false;
1038
1039         // did the user move the mouse far enough from starting point?
1040         if ( CopySelection(Primary) )
1041         {
1042             // we don't want mouse up event that ended selecting to be
1043             // handled as mouse click and e.g. follow hyperlink:
1044             return;
1045         }
1046     }
1047 #endif // wxUSE_CLIPBOARD
1048
1049     SetFocus();
1050     if ( m_Cell )
1051     {
1052         wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
1053         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1054
1055         // check is needed because FindCellByPos returns terminal cell and
1056         // containers may have empty borders -- in this case NULL will be
1057         // returned
1058         if ( cell )
1059             OnCellClicked(cell, pos.x, pos.y, event);
1060     }
1061 }
1062
1063
1064
1065 void wxHtmlWindow::OnInternalIdle()
1066 {
1067     wxWindow::OnInternalIdle();
1068
1069     if (m_tmpMouseMoved && (m_Cell != NULL))
1070     {
1071 #ifdef DEBUG_HTML_SELECTION
1072         Refresh();
1073 #endif
1074         int xc, yc, x, y;
1075         wxGetMousePosition(&xc, &yc);
1076         ScreenToClient(&xc, &yc);
1077         CalcUnscrolledPosition(xc, yc, &x, &y);
1078
1079         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
1080
1081         // handle selection update:
1082         if ( m_makingSelection )
1083         {
1084             if ( !m_tmpSelFromCell )
1085                 m_tmpSelFromCell = m_Cell->FindCellByPos(
1086                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y);
1087
1088             // NB: a trick - we adjust selFromPos to be upper left or bottom
1089             //     right corner of the first cell of the selection depending
1090             //     on whether the mouse is moving to the right or to the left.
1091             //     This gives us more "natural" behaviour when selecting
1092             //     a line (specifically, first cell of the next line is not
1093             //     included if you drag selection from left to right over
1094             //     entire line):
1095             wxPoint dirFromPos;
1096             if ( !m_tmpSelFromCell )
1097             {
1098                 dirFromPos = m_tmpSelFromPos;
1099             }
1100             else
1101             {
1102                 dirFromPos = m_tmpSelFromCell->GetAbsPos();
1103                 if ( x < m_tmpSelFromPos.x )
1104                 {
1105                     dirFromPos.x += m_tmpSelFromCell->GetWidth();
1106                     dirFromPos.y += m_tmpSelFromCell->GetHeight();
1107                 }
1108             }
1109             bool goingDown = dirFromPos.y < y ||
1110                              (dirFromPos.y == y && dirFromPos.x < x);
1111
1112             // determine selection span:
1113             if ( /*still*/ !m_tmpSelFromCell )
1114             {
1115                 if (goingDown)
1116                 {
1117                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1118                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1119                                          wxHTML_FIND_NEAREST_AFTER);
1120                     if (!m_tmpSelFromCell)
1121                         m_tmpSelFromCell = m_Cell->GetFirstTerminal();
1122                 }
1123                 else
1124                 {
1125                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1126                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1127                                          wxHTML_FIND_NEAREST_BEFORE);
1128                     if (!m_tmpSelFromCell)
1129                         m_tmpSelFromCell = m_Cell->GetLastTerminal();
1130                 }
1131             }
1132
1133             wxHtmlCell *selcell = cell;
1134             if (!selcell)
1135             {
1136                 if (goingDown)
1137                 {
1138                     selcell = m_Cell->FindCellByPos(x, y,
1139                                                  wxHTML_FIND_NEAREST_BEFORE);
1140                     if (!selcell)
1141                         selcell = m_Cell->GetLastTerminal();
1142                 }
1143                 else
1144                 {
1145                     selcell = m_Cell->FindCellByPos(x, y,
1146                                                  wxHTML_FIND_NEAREST_AFTER);
1147                     if (!selcell)
1148                         selcell = m_Cell->GetFirstTerminal();
1149                 }
1150             }
1151
1152             // NB: it may *rarely* happen that the code above didn't find one
1153             //     of the cells, e.g. if wxHtmlWindow doesn't contain any
1154             //     visible cells.
1155             if ( selcell && m_tmpSelFromCell )
1156             {
1157                 if ( !m_selection )
1158                 {
1159                     // start selecting only if mouse movement was big enough
1160                     // (otherwise it was meant as mouse click, not selection):
1161                     const int PRECISION = 2;
1162                     wxPoint diff = m_tmpSelFromPos - wxPoint(x,y);
1163                     if (abs(diff.x) > PRECISION || abs(diff.y) > PRECISION)
1164                     {
1165                         m_selection = new wxHtmlSelection();
1166                     }
1167                 }
1168                 if ( m_selection )
1169                 {
1170                     if ( m_tmpSelFromCell->IsBefore(selcell) )
1171                     {
1172                         m_selection->Set(m_tmpSelFromPos, m_tmpSelFromCell,
1173                                          wxPoint(x,y), selcell);                                    }
1174                     else
1175                     {
1176                         m_selection->Set(wxPoint(x,y), selcell,
1177                                          m_tmpSelFromPos, m_tmpSelFromCell);
1178                     }
1179                     m_selection->ClearPrivPos();
1180                     Refresh();
1181                 }
1182             }
1183         }
1184
1185         // handle cursor and status bar text changes:
1186         if ( cell != m_tmpLastCell )
1187         {
1188             wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL;
1189             wxCursor cur;
1190             if (cell)
1191                 cur = cell->GetCursor();
1192             else
1193                 cur = *wxSTANDARD_CURSOR;
1194             SetCursor(cur);
1195
1196             if (lnk != m_tmpLastLink)
1197             {
1198 #if wxUSE_STATUSBAR
1199                 if (lnk == NULL)
1200                 {
1201                     if (m_RelatedStatusBar != -1)
1202                         m_RelatedFrame->SetStatusText(wxEmptyString,
1203                                                       m_RelatedStatusBar);
1204                 }
1205                 else
1206                 {
1207                     if (m_RelatedStatusBar != -1)
1208                         m_RelatedFrame->SetStatusText(lnk->GetHref(),
1209                                                       m_RelatedStatusBar);
1210                 }
1211 #endif // wxUSE_STATUSBAR
1212                 m_tmpLastLink = lnk;
1213             }
1214
1215             m_tmpLastCell = cell;
1216         }
1217         else // mouse moved but stayed in the same cell
1218         {
1219             if ( cell )
1220                 OnCellMouseHover(cell, x, y);
1221         }
1222
1223         m_tmpMouseMoved = false;
1224     }
1225 }
1226
1227 #if wxUSE_CLIPBOARD
1228 void wxHtmlWindow::StopAutoScrolling()
1229 {
1230     if ( m_timerAutoScroll )
1231     {
1232         wxDELETE(m_timerAutoScroll);
1233     }
1234 }
1235
1236 void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event)
1237 {
1238     StopAutoScrolling();
1239     event.Skip();
1240 }
1241
1242 void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
1243 {
1244     // don't prevent the usual processing of the event from taking place
1245     event.Skip();
1246
1247     // when a captured mouse leave a scrolled window we start generate
1248     // scrolling events to allow, for example, extending selection beyond the
1249     // visible area in some controls
1250     if ( wxWindow::GetCapture() == this )
1251     {
1252         // where is the mouse leaving?
1253         int pos, orient;
1254         wxPoint pt = event.GetPosition();
1255         if ( pt.x < 0 )
1256         {
1257             orient = wxHORIZONTAL;
1258             pos = 0;
1259         }
1260         else if ( pt.y < 0 )
1261         {
1262             orient = wxVERTICAL;
1263             pos = 0;
1264         }
1265         else // we're lower or to the right of the window
1266         {
1267             wxSize size = GetClientSize();
1268             if ( pt.x > size.x )
1269             {
1270                 orient = wxHORIZONTAL;
1271                 pos = GetVirtualSize().x / wxHTML_SCROLL_STEP;
1272             }
1273             else if ( pt.y > size.y )
1274             {
1275                 orient = wxVERTICAL;
1276                 pos = GetVirtualSize().y / wxHTML_SCROLL_STEP;
1277             }
1278             else // this should be impossible
1279             {
1280                 // but seems to happen sometimes under wxMSW - maybe it's a bug
1281                 // there but for now just ignore it
1282
1283                 //wxFAIL_MSG( _T("can't understand where has mouse gone") );
1284
1285                 return;
1286             }
1287         }
1288
1289         // only start the auto scroll timer if the window can be scrolled in
1290         // this direction
1291         if ( !HasScrollbar(orient) )
1292             return;
1293
1294         delete m_timerAutoScroll;
1295         m_timerAutoScroll = new wxHtmlWinAutoScrollTimer
1296                                 (
1297                                     this,
1298                                     pos == 0 ? wxEVT_SCROLLWIN_LINEUP
1299                                              : wxEVT_SCROLLWIN_LINEDOWN,
1300                                     pos,
1301                                     orient
1302                                 );
1303         m_timerAutoScroll->Start(50); // FIXME: make configurable
1304     }
1305 }
1306
1307 void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
1308 {
1309     if ( IsSelectionEnabled() &&
1310          event.GetKeyCode() == 'C' && event.ControlDown() )
1311     {
1312         (void) CopySelection();
1313     }
1314 }
1315
1316 void wxHtmlWindow::OnCopy(wxCommandEvent& WXUNUSED(event))
1317 {
1318     (void) CopySelection();
1319 }
1320
1321 void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event)
1322 {
1323     // select word under cursor:
1324     if ( IsSelectionEnabled() )
1325     {
1326         SelectWord(CalcUnscrolledPosition(event.GetPosition()));
1327
1328         (void) CopySelection(Primary);
1329
1330         m_lastDoubleClick = wxGetLocalTimeMillis();
1331     }
1332     else
1333         event.Skip();
1334 }
1335
1336 void wxHtmlWindow::SelectWord(const wxPoint& pos)
1337 {
1338     if ( m_Cell )
1339     {
1340         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1341         if ( cell )
1342         {
1343             delete m_selection;
1344             m_selection = new wxHtmlSelection();
1345             m_selection->Set(cell, cell);
1346             RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
1347                                wxSize(cell->GetWidth(), cell->GetHeight())));
1348         }
1349     }
1350 }
1351
1352 void wxHtmlWindow::SelectLine(const wxPoint& pos)
1353 {
1354     if ( m_Cell )
1355     {
1356         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1357         if ( cell )
1358         {
1359             // We use following heuristic to find a "line": let the line be all
1360             // cells in same container as the cell under mouse cursor that are
1361             // neither completely above nor completely bellow the clicked cell
1362             // (i.e. are likely to be words positioned on same line of text).
1363
1364             int y1 = cell->GetAbsPos().y;
1365             int y2 = y1 + cell->GetHeight();
1366             int y;
1367             const wxHtmlCell *c;
1368             const wxHtmlCell *before = NULL;
1369             const wxHtmlCell *after = NULL;
1370
1371             // find last cell of line:
1372             for ( c = cell->GetNext(); c; c = c->GetNext())
1373             {
1374                 y = c->GetAbsPos().y;
1375                 if ( y + c->GetHeight() > y1 && y < y2 )
1376                     after = c;
1377                 else
1378                     break;
1379             }
1380             if ( !after )
1381                 after = cell;
1382
1383             // find first cell of line:
1384             for ( c = cell->GetParent()->GetFirstChild();
1385                     c && c != cell; c = c->GetNext())
1386             {
1387                 y = c->GetAbsPos().y;
1388                 if ( y + c->GetHeight() > y1 && y < y2 )
1389                 {
1390                     if ( ! before )
1391                         before = c;
1392                 }
1393                 else
1394                     before = NULL;
1395             }
1396             if ( !before )
1397                 before = cell;
1398
1399             delete m_selection;
1400             m_selection = new wxHtmlSelection();
1401             m_selection->Set(before, after);
1402
1403             Refresh();
1404         }
1405     }
1406 }
1407
1408 void wxHtmlWindow::SelectAll()
1409 {
1410     if ( m_Cell )
1411     {
1412         delete m_selection;
1413         m_selection = new wxHtmlSelection();
1414         m_selection->Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
1415         Refresh();
1416     }
1417 }
1418
1419 #endif // wxUSE_CLIPBOARD
1420
1421
1422
1423 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
1424
1425 #if wxUSE_EXTENDED_RTTI
1426 IMPLEMENT_DYNAMIC_CLASS_XTI(wxHtmlWindow, wxScrolledWindow,"wx/html/htmlwin.h")
1427
1428 wxBEGIN_PROPERTIES_TABLE(wxHtmlWindow)
1429 /*
1430     TODO PROPERTIES
1431         style , wxHW_SCROLLBAR_AUTO
1432         borders , (dimension)
1433         url , string
1434         htmlcode , string
1435 */
1436 wxEND_PROPERTIES_TABLE()
1437
1438 wxBEGIN_HANDLERS_TABLE(wxHtmlWindow)
1439 wxEND_HANDLERS_TABLE()
1440
1441 wxCONSTRUCTOR_5( wxHtmlWindow , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
1442 #else
1443 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
1444 #endif
1445
1446 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
1447     EVT_SIZE(wxHtmlWindow::OnSize)
1448     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseDown)
1449     EVT_LEFT_UP(wxHtmlWindow::OnMouseUp)
1450     EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp)
1451     EVT_MOTION(wxHtmlWindow::OnMouseMove)
1452     EVT_ERASE_BACKGROUND(wxHtmlWindow::OnEraseBackground)
1453     EVT_PAINT(wxHtmlWindow::OnPaint)
1454 #if wxUSE_CLIPBOARD
1455     EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick)
1456     EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter)
1457     EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave)
1458     EVT_KEY_UP(wxHtmlWindow::OnKeyUp)
1459     EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy)
1460 #endif // wxUSE_CLIPBOARD
1461 END_EVENT_TABLE()
1462
1463
1464
1465
1466
1467 // A module to allow initialization/cleanup
1468 // without calling these functions from app.cpp or from
1469 // the user's application.
1470
1471 class wxHtmlWinModule: public wxModule
1472 {
1473 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
1474 public:
1475     wxHtmlWinModule() : wxModule() {}
1476     bool OnInit() { return true; }
1477     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
1478 };
1479
1480 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
1481
1482
1483 // This hack forces the linker to always link in m_* files
1484 // (wxHTML doesn't work without handlers from these files)
1485 #include "wx/html/forcelnk.h"
1486 FORCE_WXHTML_MODULES()
1487
1488 #endif // wxUSE_HTML
1489