src/html/htmlwin.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/html/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 #ifdef __BORLANDC__
  13     #pragma hdrstop
  14 #endif
  15
  16 #if wxUSE_HTML && wxUSE_STREAMS
  17
  18 #ifndef WXPRECOMP
  19     #include "wx/list.h"
  20     #include "wx/log.h"
  21     #include "wx/intl.h"
  22     #include "wx/dcclient.h"
  23     #include "wx/frame.h"
  24     #include "wx/dcmemory.h"
  25 #endif
  26
  27 #include "wx/html/htmlwin.h"
  28 #include "wx/html/htmlproc.h"
  29 #include "wx/clipbrd.h"
  30 #include "wx/dataobj.h"
  31 #include "wx/timer.h"
  32 #include "wx/settings.h"
  33
  34 #include "wx/arrimpl.cpp"
  35 #include "wx/listimpl.cpp"
  36
  37
  38 #if wxUSE_CLIPBOARD
  39 // ----------------------------------------------------------------------------
  40 // wxHtmlWinAutoScrollTimer: the timer used to generate a stream of scroll
  41 // events when a captured mouse is held outside the window
  42 // ----------------------------------------------------------------------------
  43
  44 class wxHtmlWinAutoScrollTimer : public wxTimer
  45 {
  46 public:
  47     wxHtmlWinAutoScrollTimer(wxScrolledWindow *win,
  48                       wxEventType eventTypeToSend,
  49                       int pos, int orient)
  50     {
  51         m_win = win;
  52         m_eventType = eventTypeToSend;
  53         m_pos = pos;
  54         m_orient = orient;
  55     }
  56
  57     virtual void Notify();
  58
  59 private:
  60     wxScrolledWindow *m_win;
  61     wxEventType m_eventType;
  62     int m_pos,
  63         m_orient;
  64
  65     DECLARE_NO_COPY_CLASS(wxHtmlWinAutoScrollTimer)
  66 };
  67
  68 void wxHtmlWinAutoScrollTimer::Notify()
  69 {
  70     // only do all this as long as the window is capturing the mouse
  71     if ( wxWindow::GetCapture() != m_win )
  72     {
  73         Stop();
  74     }
  75     else // we still capture the mouse, continue generating events
  76     {
  77         // first scroll the window if we are allowed to do it
  78         wxScrollWinEvent event1(m_eventType, m_pos, m_orient);
  79         event1.SetEventObject(m_win);
  80         if ( m_win->GetEventHandler()->ProcessEvent(event1) )
  81         {
  82             // and then send a pseudo mouse-move event to refresh the selection
  83             wxMouseEvent event2(wxEVT_MOTION);
  84             wxGetMousePosition(&event2.m_x, &event2.m_y);
  85
  86             // the mouse event coordinates should be client, not screen as
  87             // returned by wxGetMousePosition
  88             wxWindow *parentTop = m_win;
  89             while ( parentTop->GetParent() )
  90                 parentTop = parentTop->GetParent();
  91             wxPoint ptOrig = parentTop->GetPosition();
  92             event2.m_x -= ptOrig.x;
  93             event2.m_y -= ptOrig.y;
  94
  95             event2.SetEventObject(m_win);
  96
  97             // FIXME: we don't fill in the other members - ok?
  98             m_win->GetEventHandler()->ProcessEvent(event2);
  99         }
 100         else // can't scroll further, stop
 101         {
 102             Stop();
 103         }
 104     }
 105 }
 106
 107 #endif // wxUSE_CLIPBOARD
 108
 109
 110
 111 //-----------------------------------------------------------------------------
 112 // wxHtmlHistoryItem
 113 //-----------------------------------------------------------------------------
 114
 115 // item of history list
 116 class WXDLLIMPEXP_HTML wxHtmlHistoryItem
 117 {
 118 public:
 119     wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
 120     int GetPos() const {return m_Pos;}
 121     void SetPos(int p) {m_Pos = p;}
 122     const wxString& GetPage() const {return m_Page;}
 123     const wxString& GetAnchor() const {return m_Anchor;}
 124
 125 private:
 126     wxString m_Page;
 127     wxString m_Anchor;
 128     int m_Pos;
 129 };
 130
 131
 132 //-----------------------------------------------------------------------------
 133 // our private arrays:
 134 //-----------------------------------------------------------------------------
 135
 136 WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
 137 WX_DEFINE_OBJARRAY(wxHtmlHistoryArray)
 138
 139 WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
 140 WX_DEFINE_LIST(wxHtmlProcessorList)
 141
 142 //-----------------------------------------------------------------------------
 143 // wxHtmlWindowMouseHelper
 144 //-----------------------------------------------------------------------------
 145
 146 wxHtmlWindowMouseHelper::wxHtmlWindowMouseHelper(wxHtmlWindowInterface *iface)
 147     : m_tmpMouseMoved(false),
 148       m_tmpLastLink(NULL),
 149       m_tmpLastCell(NULL),
 150       m_interface(iface)
 151 {
 152 }
 153
 154 void wxHtmlWindowMouseHelper::HandleMouseMoved()
 155 {
 156     m_tmpMouseMoved = true;
 157 }
 158
 159 bool wxHtmlWindowMouseHelper::HandleMouseClick(wxHtmlCell *rootCell,
 160                                                const wxPoint& pos,
 161                                                const wxMouseEvent& event)
 162 {
 163     if (!rootCell)
 164         return false;
 165
 166     wxHtmlCell *cell = rootCell->FindCellByPos(pos.x, pos.y);
 167     // this check is needed because FindCellByPos returns terminal cell and
 168     // containers may have empty borders -- in this case NULL will be
 169     // returned
 170     if (!cell)
 171         return false;
 172
 173     // adjust the coordinates to be relative to this cell:
 174     wxPoint relpos = pos - cell->GetAbsPos(rootCell);
 175
 176     return OnCellClicked(cell, relpos.x, relpos.y, event);
 177 }
 178
 179 void wxHtmlWindowMouseHelper::HandleIdle(wxHtmlCell *rootCell,
 180                                          const wxPoint& pos)
 181 {
 182     wxHtmlCell *cell = rootCell ? rootCell->FindCellByPos(pos.x, pos.y) : NULL;
 183
 184     if (cell != m_tmpLastCell)
 185     {
 186         wxHtmlLinkInfo *lnk = NULL;
 187         if (cell)
 188         {
 189             // adjust the coordinates to be relative to this cell:
 190             wxPoint relpos = pos - cell->GetAbsPos(rootCell);
 191             lnk = cell->GetLink(relpos.x, relpos.y);
 192         }
 193
 194         wxCursor cur;
 195         if (cell)
 196             cur = cell->GetMouseCursor(m_interface);
 197         else
 198             cur = m_interface->GetHTMLCursor(
 199                         wxHtmlWindowInterface::HTMLCursor_Default);
 200
 201         m_interface->GetHTMLWindow()->SetCursor(cur);
 202
 203         if (lnk != m_tmpLastLink)
 204         {
 205             if (lnk)
 206                 m_interface->SetHTMLStatusText(lnk->GetHref());
 207             else
 208                 m_interface->SetHTMLStatusText(wxEmptyString);
 209
 210             m_tmpLastLink = lnk;
 211         }
 212
 213         m_tmpLastCell = cell;
 214     }
 215     else // mouse moved but stayed in the same cell
 216     {
 217         if ( cell )
 218         {
 219             OnCellMouseHover(cell, pos.x, pos.y);
 220         }
 221     }
 222
 223     m_tmpMouseMoved = false;
 224 }
 225
 226 bool wxHtmlWindowMouseHelper::OnCellClicked(wxHtmlCell *cell,
 227                                             wxCoord x, wxCoord y,
 228                                             const wxMouseEvent& event)
 229 {
 230     wxCHECK_MSG( cell, false, _T("can't be called with NULL cell") );
 231
 232     return cell->ProcessMouseClick(m_interface, wxPoint(x, y), event);
 233 }
 234
 235 void wxHtmlWindowMouseHelper::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
 236                                                wxCoord WXUNUSED(x),
 237                                                wxCoord WXUNUSED(y))
 238 {
 239     // do nothing here
 240 }
 241
 242 //-----------------------------------------------------------------------------
 243 // wxHtmlWindow
 244 //-----------------------------------------------------------------------------
 245
 246 wxList wxHtmlWindow::m_Filters;
 247 wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
 248 wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
 249 wxCursor *wxHtmlWindow::ms_cursorLink = NULL;
 250 wxCursor *wxHtmlWindow::ms_cursorText = NULL;
 251
 252 void wxHtmlWindow::CleanUpStatics()
 253 {
 254     wxDELETE(m_DefaultFilter);
 255     WX_CLEAR_LIST(wxList, m_Filters);
 256     if (m_GlobalProcessors)
 257         WX_CLEAR_LIST(wxHtmlProcessorList, *m_GlobalProcessors);
 258     wxDELETE(m_GlobalProcessors);
 259     wxDELETE(ms_cursorLink);
 260     wxDELETE(ms_cursorText);
 261 }
 262
 263 void wxHtmlWindow::Init()
 264 {
 265     m_tmpCanDrawLocks = 0;
 266     m_FS = new wxFileSystem();
 267 #if wxUSE_STATUSBAR
 268     m_RelatedStatusBar = -1;
 269 #endif // wxUSE_STATUSBAR
 270     m_RelatedFrame = NULL;
 271     m_TitleFormat = wxT("%s");
 272     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 273     m_Cell = NULL;
 274     m_Parser = new wxHtmlWinParser(this);
 275     m_Parser->SetFS(m_FS);
 276     m_HistoryPos = -1;
 277     m_HistoryOn = true;
 278     m_History = new wxHtmlHistoryArray;
 279     m_Processors = NULL;
 280     m_Style = 0;
 281     SetBorders(10);
 282     m_selection = NULL;
 283     m_makingSelection = false;
 284 #if wxUSE_CLIPBOARD
 285     m_timerAutoScroll = NULL;
 286     m_lastDoubleClick = 0;
 287 #endif // wxUSE_CLIPBOARD
 288     m_backBuffer = NULL;
 289     m_eraseBgInOnPaint = false;
 290     m_tmpSelFromCell = NULL;
 291 }
 292
 293 bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
 294                           const wxPoint& pos, const wxSize& size,
 295                           long style, const wxString& name)
 296 {
 297     if (!wxScrolledWindow::Create(parent, id, pos, size,
 298                                   style | wxVSCROLL | wxHSCROLL,
 299                                   name))
 300         return false;
 301
 302     m_Style = style;
 303     SetPage(wxT("<html><body></body></html>"));
 304     return true;
 305 }
 306
 307
 308 wxHtmlWindow::~wxHtmlWindow()
 309 {
 310 #if wxUSE_CLIPBOARD
 311     StopAutoScrolling();
 312 #endif // wxUSE_CLIPBOARD
 313     HistoryClear();
 314
 315     delete m_selection;
 316
 317     delete m_Cell;
 318
 319     if ( m_Processors )
 320     {
 321         WX_CLEAR_LIST(wxHtmlProcessorList, *m_Processors);
 322     }
 323
 324     delete m_Parser;
 325     delete m_FS;
 326     delete m_History;
 327     delete m_Processors;
 328     delete m_backBuffer;
 329 }
 330
 331
 332
 333 void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
 334 {
 335     m_RelatedFrame = frame;
 336     m_TitleFormat = format;
 337 }
 338
 339
 340
 341 #if wxUSE_STATUSBAR
 342 void wxHtmlWindow::SetRelatedStatusBar(int bar)
 343 {
 344     m_RelatedStatusBar = bar;
 345 }
 346 #endif // wxUSE_STATUSBAR
 347
 348
 349
 350 void wxHtmlWindow::SetFonts(const wxString& normal_face, const wxString& fixed_face, const int *sizes)
 351 {
 352     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 353
 354     // re-layout the page after changing fonts:
 355     DoSetPage(*(m_Parser->GetSource()));
 356 }
 357
 358 void wxHtmlWindow::SetStandardFonts(int size,
 359                                     const wxString& normal_face,
 360                                     const wxString& fixed_face)
 361 {
 362     m_Parser->SetStandardFonts(size, normal_face, fixed_face);
 363
 364     // re-layout the page after changing fonts:
 365     DoSetPage(*(m_Parser->GetSource()));
 366 }
 367
 368 bool wxHtmlWindow::SetPage(const wxString& source)
 369 {
 370     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 371     return DoSetPage(source);
 372 }
 373
 374 bool wxHtmlWindow::DoSetPage(const wxString& source)
 375 {
 376     wxString newsrc(source);
 377
 378     wxDELETE(m_selection);
 379
 380     // we will soon delete all the cells, so clear pointers to them:
 381     m_tmpSelFromCell = NULL;
 382
 383     // pass HTML through registered processors:
 384     if (m_Processors || m_GlobalProcessors)
 385     {
 386         wxHtmlProcessorList::compatibility_iterator nodeL, nodeG;
 387         int prL, prG;
 388
 389         if ( m_Processors )
 390             nodeL = m_Processors->GetFirst();
 391         if ( m_GlobalProcessors )
 392             nodeG = m_GlobalProcessors->GetFirst();
 393
 394         // VS: there are two lists, global and local, both of them sorted by
 395         //     priority. Since we have to go through _both_ lists with
 396         //     decreasing priority, we "merge-sort" the lists on-line by
 397         //     processing that one of the two heads that has higher priority
 398         //     in every iteration
 399         while (nodeL || nodeG)
 400         {
 401             prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
 402             prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
 403             if (prL > prG)
 404             {
 405                 if (nodeL->GetData()->IsEnabled())
 406                     newsrc = nodeL->GetData()->Process(newsrc);
 407                 nodeL = nodeL->GetNext();
 408             }
 409             else // prL <= prG
 410             {
 411                 if (nodeG->GetData()->IsEnabled())
 412                     newsrc = nodeG->GetData()->Process(newsrc);
 413                 nodeG = nodeG->GetNext();
 414             }
 415         }
 416     }
 417
 418     // ...and run the parser on it:
 419     wxClientDC *dc = new wxClientDC(this);
 420     dc->SetMapMode(wxMM_TEXT);
 421     SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
 422     SetBackgroundImage(wxNullBitmap);
 423
 424     m_Parser->SetDC(dc);
 425     if (m_Cell)
 426     {
 427         delete m_Cell;
 428         m_Cell = NULL;
 429     }
 430     m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
 431     delete dc;
 432     m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 433     m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
 434     CreateLayout();
 435     if (m_tmpCanDrawLocks == 0)
 436         Refresh();
 437     return true;
 438 }
 439
 440 bool wxHtmlWindow::AppendToPage(const wxString& source)
 441 {
 442     return DoSetPage(*(GetParser()->GetSource()) + source);
 443 }
 444
 445 bool wxHtmlWindow::LoadPage(const wxString& location)
 446 {
 447     wxBusyCursor busyCursor;
 448
 449     wxFSFile *f;
 450     bool rt_val;
 451     bool needs_refresh = false;
 452
 453     m_tmpCanDrawLocks++;
 454     if (m_HistoryOn && (m_HistoryPos != -1))
 455     {
 456         // store scroll position into history item:
 457         int x, y;
 458         GetViewStart(&x, &y);
 459         (*m_History)[m_HistoryPos].SetPos(y);
 460     }
 461
 462     if (location[0] == wxT('#'))
 463     {
 464         // local anchor:
 465         wxString anch = location.Mid(1) /*1 to end*/;
 466         m_tmpCanDrawLocks--;
 467         rt_val = ScrollToAnchor(anch);
 468         m_tmpCanDrawLocks++;
 469     }
 470     else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
 471     {
 472         wxString anch = location.AfterFirst(wxT('#'));
 473         m_tmpCanDrawLocks--;
 474         rt_val = ScrollToAnchor(anch);
 475         m_tmpCanDrawLocks++;
 476     }
 477     else if (location.Find(wxT('#')) != wxNOT_FOUND &&
 478              (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
 479     {
 480         wxString anch = location.AfterFirst(wxT('#'));
 481         m_tmpCanDrawLocks--;
 482         rt_val = ScrollToAnchor(anch);
 483         m_tmpCanDrawLocks++;
 484     }
 485
 486     else
 487     {
 488         needs_refresh = true;
 489 #if wxUSE_STATUSBAR
 490         // load&display it:
 491         if (m_RelatedStatusBar != -1)
 492         {
 493             m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
 494             Refresh(false);
 495         }
 496 #endif // wxUSE_STATUSBAR
 497
 498         f = m_Parser->OpenURL(wxHTML_URL_PAGE, location);
 499
 500         // try to interpret 'location' as filename instead of URL:
 501         if (f == NULL)
 502         {
 503             wxFileName fn(location);
 504             wxString location2 = wxFileSystem::FileNameToURL(fn);
 505             f = m_Parser->OpenURL(wxHTML_URL_PAGE, location2);
 506         }
 507
 508         if (f == NULL)
 509         {
 510             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 511             m_tmpCanDrawLocks--;
 512             return false;
 513         }
 514
 515         else
 516         {
 517             wxList::compatibility_iterator node;
 518             wxString src = wxEmptyString;
 519
 520 #if wxUSE_STATUSBAR
 521             if (m_RelatedStatusBar != -1)
 522             {
 523                 wxString msg = _("Loading : ") + location;
 524                 m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
 525                 Refresh(false);
 526             }
 527 #endif // wxUSE_STATUSBAR
 528
 529             node = m_Filters.GetFirst();
 530             while (node)
 531             {
 532                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 533                 if (h->CanRead(*f))
 534                 {
 535                     src = h->ReadFile(*f);
 536                     break;
 537                 }
 538                 node = node->GetNext();
 539             }
 540             if (src == wxEmptyString)
 541             {
 542                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 543                 src = m_DefaultFilter->ReadFile(*f);
 544             }
 545
 546             m_FS->ChangePathTo(f->GetLocation());
 547             rt_val = SetPage(src);
 548             m_OpenedPage = f->GetLocation();
 549             if (f->GetAnchor() != wxEmptyString)
 550             {
 551                 ScrollToAnchor(f->GetAnchor());
 552             }
 553
 554             delete f;
 555
 556 #if wxUSE_STATUSBAR
 557             if (m_RelatedStatusBar != -1)
 558                 m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
 559 #endif // wxUSE_STATUSBAR
 560         }
 561     }
 562
 563     if (m_HistoryOn) // add this page to history there:
 564     {
 565         int c = m_History->GetCount() - (m_HistoryPos + 1);
 566
 567         if (m_HistoryPos < 0 ||
 568             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 569             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 570         {
 571             m_HistoryPos++;
 572             for (int i = 0; i < c; i++)
 573                 m_History->RemoveAt(m_HistoryPos);
 574             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 575         }
 576     }
 577
 578     if (m_OpenedPageTitle == wxEmptyString)
 579         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 580
 581     if (needs_refresh)
 582     {
 583         m_tmpCanDrawLocks--;
 584         Refresh();
 585     }
 586     else
 587         m_tmpCanDrawLocks--;
 588
 589     return rt_val;
 590 }
 591
 592
 593 bool wxHtmlWindow::LoadFile(const wxFileName& filename)
 594 {
 595     wxString url = wxFileSystem::FileNameToURL(filename);
 596     return LoadPage(url);
 597 }
 598
 599
 600 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 601 {
 602     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 603     if (!c)
 604     {
 605         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 606         return false;
 607     }
 608     else
 609     {
 610         int y;
 611
 612         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 613         Scroll(-1, y / wxHTML_SCROLL_STEP);
 614         m_OpenedAnchor = anchor;
 615         return true;
 616     }
 617 }
 618
 619
 620 void wxHtmlWindow::OnSetTitle(const wxString& title)
 621 {
 622     if (m_RelatedFrame)
 623     {
 624         wxString tit;
 625         tit.Printf(m_TitleFormat, title.c_str());
 626         m_RelatedFrame->SetTitle(tit);
 627     }
 628     m_OpenedPageTitle = title;
 629 }
 630
 631
 632
 633
 634
 635 void wxHtmlWindow::CreateLayout()
 636 {
 637     int ClientWidth, ClientHeight;
 638
 639     if (!m_Cell) return;
 640
 641     if (m_Style & wxHW_SCROLLBAR_NEVER)
 642     {
 643         SetScrollbars(1, 1, 0, 0); // always off
 644         GetClientSize(&ClientWidth, &ClientHeight);
 645         m_Cell->Layout(ClientWidth);
 646     }
 647
 648     else {
 649         GetClientSize(&ClientWidth, &ClientHeight);
 650         m_Cell->Layout(ClientWidth);
 651         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 652         {
 653             SetScrollbars(
 654                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 655                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 656                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 657                   /*cheat: top-level frag is always container*/);
 658         }
 659         else /* we fit into window, no need for scrollbars */
 660         {
 661             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 662             GetClientSize(&ClientWidth, &ClientHeight);
 663             m_Cell->Layout(ClientWidth); // ...and relayout
 664         }
 665     }
 666 }
 667
 668
 669
 670 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 671 {
 672     wxString oldpath;
 673     wxString tmp;
 674     int p_fontsizes[7];
 675     wxString p_fff, p_ffn;
 676
 677     if (path != wxEmptyString)
 678     {
 679         oldpath = cfg->GetPath();
 680         cfg->SetPath(path);
 681     }
 682
 683     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 684     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 685     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 686     for (int i = 0; i < 7; i++)
 687     {
 688         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 689         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 690     }
 691     SetFonts(p_ffn, p_fff, p_fontsizes);
 692
 693     if (path != wxEmptyString)
 694         cfg->SetPath(oldpath);
 695 }
 696
 697
 698
 699 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 700 {
 701     wxString oldpath;
 702     wxString tmp;
 703
 704     if (path != wxEmptyString)
 705     {
 706         oldpath = cfg->GetPath();
 707         cfg->SetPath(path);
 708     }
 709
 710     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 711     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 712     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 713     for (int i = 0; i < 7; i++)
 714     {
 715         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 716         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 717     }
 718
 719     if (path != wxEmptyString)
 720         cfg->SetPath(oldpath);
 721 }
 722
 723
 724
 725 bool wxHtmlWindow::HistoryBack()
 726 {
 727     wxString a, l;
 728
 729     if (m_HistoryPos < 1) return false;
 730
 731     // store scroll position into history item:
 732     int x, y;
 733     GetViewStart(&x, &y);
 734     (*m_History)[m_HistoryPos].SetPos(y);
 735
 736     // go to previous position:
 737     m_HistoryPos--;
 738
 739     l = (*m_History)[m_HistoryPos].GetPage();
 740     a = (*m_History)[m_HistoryPos].GetAnchor();
 741     m_HistoryOn = false;
 742     m_tmpCanDrawLocks++;
 743     if (a == wxEmptyString) LoadPage(l);
 744     else LoadPage(l + wxT("#") + a);
 745     m_HistoryOn = true;
 746     m_tmpCanDrawLocks--;
 747     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 748     Refresh();
 749     return true;
 750 }
 751
 752 bool wxHtmlWindow::HistoryCanBack()
 753 {
 754     if (m_HistoryPos < 1) return false;
 755     return true ;
 756 }
 757
 758
 759 bool wxHtmlWindow::HistoryForward()
 760 {
 761     wxString a, l;
 762
 763     if (m_HistoryPos == -1) return false;
 764     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 765
 766     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 767
 768     m_HistoryPos++;
 769     l = (*m_History)[m_HistoryPos].GetPage();
 770     a = (*m_History)[m_HistoryPos].GetAnchor();
 771     m_HistoryOn = false;
 772     m_tmpCanDrawLocks++;
 773     if (a == wxEmptyString) LoadPage(l);
 774     else LoadPage(l + wxT("#") + a);
 775     m_HistoryOn = true;
 776     m_tmpCanDrawLocks--;
 777     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 778     Refresh();
 779     return true;
 780 }
 781
 782 bool wxHtmlWindow::HistoryCanForward()
 783 {
 784     if (m_HistoryPos == -1) return false;
 785     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 786     return true ;
 787 }
 788
 789
 790 void wxHtmlWindow::HistoryClear()
 791 {
 792     m_History->Empty();
 793     m_HistoryPos = -1;
 794 }
 795
 796 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 797 {
 798     if (!m_Processors)
 799     {
 800         m_Processors = new wxHtmlProcessorList;
 801     }
 802     wxHtmlProcessorList::compatibility_iterator node;
 803
 804     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 805     {
 806         if (processor->GetPriority() > node->GetData()->GetPriority())
 807         {
 808             m_Processors->Insert(node, processor);
 809             return;
 810         }
 811     }
 812     m_Processors->Append(processor);
 813 }
 814
 815 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 816 {
 817     if (!m_GlobalProcessors)
 818     {
 819         m_GlobalProcessors = new wxHtmlProcessorList;
 820     }
 821     wxHtmlProcessorList::compatibility_iterator node;
 822
 823     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 824     {
 825         if (processor->GetPriority() > node->GetData()->GetPriority())
 826         {
 827             m_GlobalProcessors->Insert(node, processor);
 828             return;
 829         }
 830     }
 831     m_GlobalProcessors->Append(processor);
 832 }
 833
 834
 835
 836 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 837 {
 838     m_Filters.Append(filter);
 839 }
 840
 841
 842 bool wxHtmlWindow::IsSelectionEnabled() const
 843 {
 844 #if wxUSE_CLIPBOARD
 845     return !(m_Style & wxHW_NO_SELECTION);
 846 #else
 847     return false;
 848 #endif
 849 }
 850
 851
 852 #if wxUSE_CLIPBOARD
 853 wxString wxHtmlWindow::DoSelectionToText(wxHtmlSelection *sel)
 854 {
 855     if ( !sel )
 856         return wxEmptyString;
 857
 858     wxClientDC dc(this);
 859
 860     const wxHtmlCell *end = sel->GetToCell();
 861     wxString text;
 862     wxHtmlTerminalCellsInterator i(sel->GetFromCell(), end);
 863     if ( i )
 864     {
 865         text << i->ConvertToText(sel);
 866         ++i;
 867     }
 868     const wxHtmlCell *prev = *i;
 869     while ( i )
 870     {
 871         if ( prev->GetParent() != i->GetParent() )
 872             text << _T('\n');
 873         text << i->ConvertToText(*i == end ? sel : NULL);
 874         prev = *i;
 875         ++i;
 876     }
 877     return text;
 878 }
 879
 880 wxString wxHtmlWindow::ToText()
 881 {
 882     if (m_Cell)
 883     {
 884         wxHtmlSelection sel;
 885         sel.Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
 886         return DoSelectionToText(&sel);
 887     }
 888     else
 889         return wxEmptyString;
 890 }
 891
 892 #endif // wxUSE_CLIPBOARD
 893
 894 bool wxHtmlWindow::CopySelection(ClipboardType t)
 895 {
 896 #if wxUSE_CLIPBOARD
 897     if ( m_selection )
 898     {
 899 #if defined(__UNIX__) && !defined(__WXMAC__)
 900         wxTheClipboard->UsePrimarySelection(t == Primary);
 901 #else // !__UNIX__
 902         // Primary selection exists only under X11, so don't do anything under
 903         // the other platforms when we try to access it
 904         //
 905         // TODO: this should be abstracted at wxClipboard level!
 906         if ( t == Primary )
 907             return false;
 908 #endif // __UNIX__/!__UNIX__
 909
 910         if ( wxTheClipboard->Open() )
 911         {
 912             const wxString txt(SelectionToText());
 913             wxTheClipboard->SetData(new wxTextDataObject(txt));
 914             wxTheClipboard->Close();
 915             wxLogTrace(_T("wxhtmlselection"),
 916                        _("Copied to clipboard:\"%s\""), txt.c_str());
 917
 918             return true;
 919         }
 920     }
 921 #else
 922     wxUnusedVar(t);
 923 #endif // wxUSE_CLIPBOARD
 924
 925     return false;
 926 }
 927
 928
 929 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 930 {
 931     const wxMouseEvent *e = link.GetEvent();
 932     if (e == NULL || e->LeftUp())
 933         LoadPage(link.GetHref());
 934 }
 935
 936 void wxHtmlWindow::OnEraseBackground(wxEraseEvent& event)
 937 {
 938     if ( !m_bmpBg.Ok() )
 939     {
 940         // don't even skip the event, if we don't have a bg bitmap we're going
 941         // to overwrite background in OnPaint() below anyhow, so letting the
 942         // default handling take place would only result in flicker, just set a
 943         // flag to erase the background below
 944         m_eraseBgInOnPaint = true;
 945         return;
 946     }
 947
 948     wxDC& dc = *event.GetDC();
 949
 950     // if the image is not fully opaque, we have to erase the background before
 951     // drawing it, however avoid doing it for opaque images as this would just
 952     // result in extra flicker without any other effect as background is
 953     // completely covered anyhow
 954     if ( m_bmpBg.GetMask() )
 955     {
 956         dc.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
 957         dc.Clear();
 958     }
 959
 960     const wxSize sizeWin(GetClientSize());
 961     const wxSize sizeBmp(m_bmpBg.GetWidth(), m_bmpBg.GetHeight());
 962     for ( wxCoord x = 0; x < sizeWin.x; x += sizeBmp.x )
 963     {
 964         for ( wxCoord y = 0; y < sizeWin.y; y += sizeBmp.y )
 965         {
 966             dc.DrawBitmap(m_bmpBg, x, y, true /* use mask */);
 967         }
 968     }
 969 }
 970
 971 void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
 972 {
 973     wxPaintDC dc(this);
 974
 975     if (m_tmpCanDrawLocks > 0 || m_Cell == NULL)
 976         return;
 977
 978     int x, y;
 979     GetViewStart(&x, &y);
 980     wxRect rect = GetUpdateRegion().GetBox();
 981     wxSize sz = GetSize();
 982
 983     wxMemoryDC dcm;
 984     if ( !m_backBuffer )
 985         m_backBuffer = new wxBitmap(sz.x, sz.y);
 986     dcm.SelectObject(*m_backBuffer);
 987
 988     if ( m_eraseBgInOnPaint )
 989     {
 990         dcm.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
 991         dcm.Clear();
 992
 993         m_eraseBgInOnPaint = false;
 994     }
 995     else // someone has already erased the background, keep it
 996     {
 997         // preserve the existing background, otherwise we'd erase anything the
 998         // user code had drawn in its EVT_ERASE_BACKGROUND handler when we do
 999         // the Blit back below
1000         dcm.Blit(0, rect.GetTop(),
1001                  sz.x, rect.GetBottom() - rect.GetTop() + 1,
1002                  &dc,
1003                  0, rect.GetTop());
1004     }
1005
1006     PrepareDC(dcm);
1007     dcm.SetMapMode(wxMM_TEXT);
1008     dcm.SetBackgroundMode(wxTRANSPARENT);
1009
1010     wxHtmlRenderingInfo rinfo;
1011     wxDefaultHtmlRenderingStyle rstyle;
1012     rinfo.SetSelection(m_selection);
1013     rinfo.SetStyle(&rstyle);
1014     m_Cell->Draw(dcm, 0, 0,
1015                  y * wxHTML_SCROLL_STEP + rect.GetTop(),
1016                  y * wxHTML_SCROLL_STEP + rect.GetBottom(),
1017                  rinfo);
1018
1019 //#define DEBUG_HTML_SELECTION
1020 #ifdef DEBUG_HTML_SELECTION
1021     {
1022     int xc, yc, x, y;
1023     wxGetMousePosition(&xc, &yc);
1024     ScreenToClient(&xc, &yc);
1025     CalcUnscrolledPosition(xc, yc, &x, &y);
1026     wxHtmlCell *at = m_Cell->FindCellByPos(x, y);
1027     wxHtmlCell *before =
1028         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_BEFORE);
1029     wxHtmlCell *after =
1030         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_AFTER);
1031
1032     dcm.SetBrush(*wxTRANSPARENT_BRUSH);
1033     dcm.SetPen(*wxBLACK_PEN);
1034     if (at)
1035         dcm.DrawRectangle(at->GetAbsPos(),
1036                           wxSize(at->GetWidth(),at->GetHeight()));
1037     dcm.SetPen(*wxGREEN_PEN);
1038     if (before)
1039         dcm.DrawRectangle(before->GetAbsPos().x+1, before->GetAbsPos().y+1,
1040                           before->GetWidth()-2,before->GetHeight()-2);
1041     dcm.SetPen(*wxRED_PEN);
1042     if (after)
1043         dcm.DrawRectangle(after->GetAbsPos().x+2, after->GetAbsPos().y+2,
1044                           after->GetWidth()-4,after->GetHeight()-4);
1045     }
1046 #endif
1047
1048     dcm.SetDeviceOrigin(0,0);
1049     dc.Blit(0, rect.GetTop(),
1050             sz.x, rect.GetBottom() - rect.GetTop() + 1,
1051             &dcm,
1052             0, rect.GetTop());
1053 }
1054
1055
1056
1057
1058 void wxHtmlWindow::OnSize(wxSizeEvent& event)
1059 {
1060     wxDELETE(m_backBuffer);
1061
1062     wxScrolledWindow::OnSize(event);
1063     CreateLayout();
1064
1065     // Recompute selection if necessary:
1066     if ( m_selection )
1067     {
1068         m_selection->Set(m_selection->GetFromCell(),
1069                          m_selection->GetToCell());
1070         m_selection->ClearPrivPos();
1071     }
1072
1073     Refresh();
1074 }
1075
1076
1077 void wxHtmlWindow::OnMouseMove(wxMouseEvent& WXUNUSED(event))
1078 {
1079     wxHtmlWindowMouseHelper::HandleMouseMoved();
1080 }
1081
1082 void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
1083 {
1084 #if wxUSE_CLIPBOARD
1085     if ( event.LeftDown() && IsSelectionEnabled() )
1086     {
1087         const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
1088         if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
1089         {
1090             SelectLine(CalcUnscrolledPosition(event.GetPosition()));
1091
1092             (void) CopySelection();
1093         }
1094         else
1095         {
1096             m_makingSelection = true;
1097
1098             if ( m_selection )
1099             {
1100                 wxDELETE(m_selection);
1101                 Refresh();
1102             }
1103             m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
1104             m_tmpSelFromCell = NULL;
1105
1106             CaptureMouse();
1107         }
1108     }
1109 #else
1110     wxUnusedVar(event);
1111 #endif // wxUSE_CLIPBOARD
1112 }
1113
1114 void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
1115 {
1116 #if wxUSE_CLIPBOARD
1117     if ( m_makingSelection )
1118     {
1119         ReleaseMouse();
1120         m_makingSelection = false;
1121
1122         // did the user move the mouse far enough from starting point?
1123         if ( CopySelection(Primary) )
1124         {
1125             // we don't want mouse up event that ended selecting to be
1126             // handled as mouse click and e.g. follow hyperlink:
1127             return;
1128         }
1129     }
1130 #endif // wxUSE_CLIPBOARD
1131
1132     SetFocus();
1133
1134     wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
1135     wxHtmlWindowMouseHelper::HandleMouseClick(m_Cell, pos, event);
1136 }
1137
1138
1139
1140 void wxHtmlWindow::OnInternalIdle()
1141 {
1142     wxWindow::OnInternalIdle();
1143
1144     if (m_Cell != NULL && DidMouseMove())
1145     {
1146 #ifdef DEBUG_HTML_SELECTION
1147         Refresh();
1148 #endif
1149         int xc, yc, x, y;
1150         wxGetMousePosition(&xc, &yc);
1151         ScreenToClient(&xc, &yc);
1152         CalcUnscrolledPosition(xc, yc, &x, &y);
1153
1154         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
1155
1156         // handle selection update:
1157         if ( m_makingSelection )
1158         {
1159             if ( !m_tmpSelFromCell )
1160                 m_tmpSelFromCell = m_Cell->FindCellByPos(
1161                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y);
1162
1163             // NB: a trick - we adjust selFromPos to be upper left or bottom
1164             //     right corner of the first cell of the selection depending
1165             //     on whether the mouse is moving to the right or to the left.
1166             //     This gives us more "natural" behaviour when selecting
1167             //     a line (specifically, first cell of the next line is not
1168             //     included if you drag selection from left to right over
1169             //     entire line):
1170             wxPoint dirFromPos;
1171             if ( !m_tmpSelFromCell )
1172             {
1173                 dirFromPos = m_tmpSelFromPos;
1174             }
1175             else
1176             {
1177                 dirFromPos = m_tmpSelFromCell->GetAbsPos();
1178                 if ( x < m_tmpSelFromPos.x )
1179                 {
1180                     dirFromPos.x += m_tmpSelFromCell->GetWidth();
1181                     dirFromPos.y += m_tmpSelFromCell->GetHeight();
1182                 }
1183             }
1184             bool goingDown = dirFromPos.y < y ||
1185                              (dirFromPos.y == y && dirFromPos.x < x);
1186
1187             // determine selection span:
1188             if ( /*still*/ !m_tmpSelFromCell )
1189             {
1190                 if (goingDown)
1191                 {
1192                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1193                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1194                                          wxHTML_FIND_NEAREST_AFTER);
1195                     if (!m_tmpSelFromCell)
1196                         m_tmpSelFromCell = m_Cell->GetFirstTerminal();
1197                 }
1198                 else
1199                 {
1200                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1201                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1202                                          wxHTML_FIND_NEAREST_BEFORE);
1203                     if (!m_tmpSelFromCell)
1204                         m_tmpSelFromCell = m_Cell->GetLastTerminal();
1205                 }
1206             }
1207
1208             wxHtmlCell *selcell = cell;
1209             if (!selcell)
1210             {
1211                 if (goingDown)
1212                 {
1213                     selcell = m_Cell->FindCellByPos(x, y,
1214                                                  wxHTML_FIND_NEAREST_BEFORE);
1215                     if (!selcell)
1216                         selcell = m_Cell->GetLastTerminal();
1217                 }
1218                 else
1219                 {
1220                     selcell = m_Cell->FindCellByPos(x, y,
1221                                                  wxHTML_FIND_NEAREST_AFTER);
1222                     if (!selcell)
1223                         selcell = m_Cell->GetFirstTerminal();
1224                 }
1225             }
1226
1227             // NB: it may *rarely* happen that the code above didn't find one
1228             //     of the cells, e.g. if wxHtmlWindow doesn't contain any
1229             //     visible cells.
1230             if ( selcell && m_tmpSelFromCell )
1231             {
1232                 if ( !m_selection )
1233                 {
1234                     // start selecting only if mouse movement was big enough
1235                     // (otherwise it was meant as mouse click, not selection):
1236                     const int PRECISION = 2;
1237                     wxPoint diff = m_tmpSelFromPos - wxPoint(x,y);
1238                     if (abs(diff.x) > PRECISION || abs(diff.y) > PRECISION)
1239                     {
1240                         m_selection = new wxHtmlSelection();
1241                     }
1242                 }
1243                 if ( m_selection )
1244                 {
1245                     if ( m_tmpSelFromCell->IsBefore(selcell) )
1246                     {
1247                         m_selection->Set(m_tmpSelFromPos, m_tmpSelFromCell,
1248                                          wxPoint(x,y), selcell);                                    }
1249                     else
1250                     {
1251                         m_selection->Set(wxPoint(x,y), selcell,
1252                                          m_tmpSelFromPos, m_tmpSelFromCell);
1253                     }
1254                     m_selection->ClearPrivPos();
1255                     Refresh();
1256                 }
1257             }
1258         }
1259
1260         // handle cursor and status bar text changes:
1261
1262         // NB: because we're passing in 'cell' and not 'm_Cell' (so that the
1263         //     leaf cell lookup isn't done twice), we need to adjust the
1264         //     position for the new root:
1265         wxPoint posInCell(x, y);
1266         if (cell)
1267             posInCell -= cell->GetAbsPos();
1268         wxHtmlWindowMouseHelper::HandleIdle(cell, posInCell);
1269     }
1270 }
1271
1272 #if wxUSE_CLIPBOARD
1273 void wxHtmlWindow::StopAutoScrolling()
1274 {
1275     if ( m_timerAutoScroll )
1276     {
1277         wxDELETE(m_timerAutoScroll);
1278     }
1279 }
1280
1281 void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event)
1282 {
1283     StopAutoScrolling();
1284     event.Skip();
1285 }
1286
1287 void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
1288 {
1289     // don't prevent the usual processing of the event from taking place
1290     event.Skip();
1291
1292     // when a captured mouse leave a scrolled window we start generate
1293     // scrolling events to allow, for example, extending selection beyond the
1294     // visible area in some controls
1295     if ( wxWindow::GetCapture() == this )
1296     {
1297         // where is the mouse leaving?
1298         int pos, orient;
1299         wxPoint pt = event.GetPosition();
1300         if ( pt.x < 0 )
1301         {
1302             orient = wxHORIZONTAL;
1303             pos = 0;
1304         }
1305         else if ( pt.y < 0 )
1306         {
1307             orient = wxVERTICAL;
1308             pos = 0;
1309         }
1310         else // we're lower or to the right of the window
1311         {
1312             wxSize size = GetClientSize();
1313             if ( pt.x > size.x )
1314             {
1315                 orient = wxHORIZONTAL;
1316                 pos = GetVirtualSize().x / wxHTML_SCROLL_STEP;
1317             }
1318             else if ( pt.y > size.y )
1319             {
1320                 orient = wxVERTICAL;
1321                 pos = GetVirtualSize().y / wxHTML_SCROLL_STEP;
1322             }
1323             else // this should be impossible
1324             {
1325                 // but seems to happen sometimes under wxMSW - maybe it's a bug
1326                 // there but for now just ignore it
1327
1328                 //wxFAIL_MSG( _T("can't understand where has mouse gone") );
1329
1330                 return;
1331             }
1332         }
1333
1334         // only start the auto scroll timer if the window can be scrolled in
1335         // this direction
1336         if ( !HasScrollbar(orient) )
1337             return;
1338
1339         delete m_timerAutoScroll;
1340         m_timerAutoScroll = new wxHtmlWinAutoScrollTimer
1341                                 (
1342                                     this,
1343                                     pos == 0 ? wxEVT_SCROLLWIN_LINEUP
1344                                              : wxEVT_SCROLLWIN_LINEDOWN,
1345                                     pos,
1346                                     orient
1347                                 );
1348         m_timerAutoScroll->Start(50); // FIXME: make configurable
1349     }
1350 }
1351
1352 void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
1353 {
1354     if ( IsSelectionEnabled() && event.GetKeyCode() == 'C' && event.CmdDown() )
1355     {
1356         (void) CopySelection();
1357     }
1358 }
1359
1360 void wxHtmlWindow::OnCopy(wxCommandEvent& WXUNUSED(event))
1361 {
1362     (void) CopySelection();
1363 }
1364
1365 void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event)
1366 {
1367     // select word under cursor:
1368     if ( IsSelectionEnabled() )
1369     {
1370         SelectWord(CalcUnscrolledPosition(event.GetPosition()));
1371
1372         (void) CopySelection(Primary);
1373
1374         m_lastDoubleClick = wxGetLocalTimeMillis();
1375     }
1376     else
1377         event.Skip();
1378 }
1379
1380 void wxHtmlWindow::SelectWord(const wxPoint& pos)
1381 {
1382     if ( m_Cell )
1383     {
1384         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1385         if ( cell )
1386         {
1387             delete m_selection;
1388             m_selection = new wxHtmlSelection();
1389             m_selection->Set(cell, cell);
1390             RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
1391                                wxSize(cell->GetWidth(), cell->GetHeight())));
1392         }
1393     }
1394 }
1395
1396 void wxHtmlWindow::SelectLine(const wxPoint& pos)
1397 {
1398     if ( m_Cell )
1399     {
1400         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1401         if ( cell )
1402         {
1403             // We use following heuristic to find a "line": let the line be all
1404             // cells in same container as the cell under mouse cursor that are
1405             // neither completely above nor completely bellow the clicked cell
1406             // (i.e. are likely to be words positioned on same line of text).
1407
1408             int y1 = cell->GetAbsPos().y;
1409             int y2 = y1 + cell->GetHeight();
1410             int y;
1411             const wxHtmlCell *c;
1412             const wxHtmlCell *before = NULL;
1413             const wxHtmlCell *after = NULL;
1414
1415             // find last cell of line:
1416             for ( c = cell->GetNext(); c; c = c->GetNext())
1417             {
1418                 y = c->GetAbsPos().y;
1419                 if ( y + c->GetHeight() > y1 && y < y2 )
1420                     after = c;
1421                 else
1422                     break;
1423             }
1424             if ( !after )
1425                 after = cell;
1426
1427             // find first cell of line:
1428             for ( c = cell->GetParent()->GetFirstChild();
1429                     c && c != cell; c = c->GetNext())
1430             {
1431                 y = c->GetAbsPos().y;
1432                 if ( y + c->GetHeight() > y1 && y < y2 )
1433                 {
1434                     if ( ! before )
1435                         before = c;
1436                 }
1437                 else
1438                     before = NULL;
1439             }
1440             if ( !before )
1441                 before = cell;
1442
1443             delete m_selection;
1444             m_selection = new wxHtmlSelection();
1445             m_selection->Set(before, after);
1446
1447             Refresh();
1448         }
1449     }
1450 }
1451
1452 void wxHtmlWindow::SelectAll()
1453 {
1454     if ( m_Cell )
1455     {
1456         delete m_selection;
1457         m_selection = new wxHtmlSelection();
1458         m_selection->Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
1459         Refresh();
1460     }
1461 }
1462
1463 #endif // wxUSE_CLIPBOARD
1464
1465
1466
1467 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
1468
1469 #if wxUSE_EXTENDED_RTTI
1470 IMPLEMENT_DYNAMIC_CLASS_XTI(wxHtmlWindow, wxScrolledWindow,"wx/html/htmlwin.h")
1471
1472 wxBEGIN_PROPERTIES_TABLE(wxHtmlWindow)
1473 /*
1474     TODO PROPERTIES
1475         style , wxHW_SCROLLBAR_AUTO
1476         borders , (dimension)
1477         url , string
1478         htmlcode , string
1479 */
1480 wxEND_PROPERTIES_TABLE()
1481
1482 wxBEGIN_HANDLERS_TABLE(wxHtmlWindow)
1483 wxEND_HANDLERS_TABLE()
1484
1485 wxCONSTRUCTOR_5( wxHtmlWindow , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
1486 #else
1487 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
1488 #endif
1489
1490 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
1491     EVT_SIZE(wxHtmlWindow::OnSize)
1492     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseDown)
1493     EVT_LEFT_UP(wxHtmlWindow::OnMouseUp)
1494     EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp)
1495     EVT_MOTION(wxHtmlWindow::OnMouseMove)
1496     EVT_ERASE_BACKGROUND(wxHtmlWindow::OnEraseBackground)
1497     EVT_PAINT(wxHtmlWindow::OnPaint)
1498 #if wxUSE_CLIPBOARD
1499     EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick)
1500     EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter)
1501     EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave)
1502     EVT_KEY_UP(wxHtmlWindow::OnKeyUp)
1503     EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy)
1504 #endif // wxUSE_CLIPBOARD
1505 END_EVENT_TABLE()
1506
1507 //-----------------------------------------------------------------------------
1508 // wxHtmlWindowInterface implementation in wxHtmlWindow
1509 //-----------------------------------------------------------------------------
1510
1511 void wxHtmlWindow::SetHTMLWindowTitle(const wxString& title)
1512 {
1513     OnSetTitle(title);
1514 }
1515
1516 void wxHtmlWindow::OnHTMLLinkClicked(const wxHtmlLinkInfo& link)
1517 {
1518     OnLinkClicked(link);
1519 }
1520
1521 wxHtmlOpeningStatus wxHtmlWindow::OnHTMLOpeningURL(wxHtmlURLType type,
1522                                                    const wxString& url,
1523                                                    wxString *redirect) const
1524 {
1525     return OnOpeningURL(type, url, redirect);
1526 }
1527
1528 wxPoint wxHtmlWindow::HTMLCoordsToWindow(wxHtmlCell *WXUNUSED(cell),
1529                                          const wxPoint& pos) const
1530 {
1531     return CalcScrolledPosition(pos);
1532 }
1533
1534 wxWindow* wxHtmlWindow::GetHTMLWindow()
1535 {
1536     return this;
1537 }
1538
1539 wxColour wxHtmlWindow::GetHTMLBackgroundColour() const
1540 {
1541     return GetBackgroundColour();
1542 }
1543
1544 void wxHtmlWindow::SetHTMLBackgroundColour(const wxColour& clr)
1545 {
1546     SetBackgroundColour(clr);
1547 }
1548
1549 void wxHtmlWindow::SetHTMLBackgroundImage(const wxBitmap& bmpBg)
1550 {
1551     SetBackgroundImage(bmpBg);
1552 }
1553
1554 void wxHtmlWindow::SetHTMLStatusText(const wxString& text)
1555 {
1556 #if wxUSE_STATUSBAR
1557     if (m_RelatedStatusBar != -1)
1558         m_RelatedFrame->SetStatusText(text, m_RelatedStatusBar);
1559 #endif // wxUSE_STATUSBAR
1560 }
1561
1562 /*static*/
1563 wxCursor wxHtmlWindow::GetDefaultHTMLCursor(HTMLCursor type)
1564 {
1565     switch (type)
1566     {
1567         case HTMLCursor_Link:
1568             if ( !ms_cursorLink )
1569                 ms_cursorLink = new wxCursor(wxCURSOR_HAND);
1570             return *ms_cursorLink;
1571
1572         case HTMLCursor_Text:
1573             if ( !ms_cursorText )
1574                 ms_cursorText = new wxCursor(wxCURSOR_IBEAM);
1575             return *ms_cursorText;
1576
1577         case HTMLCursor_Default:
1578         default:
1579             return *wxSTANDARD_CURSOR;
1580     }
1581 }
1582
1583 wxCursor wxHtmlWindow::GetHTMLCursor(HTMLCursor type) const
1584 {
1585     return GetDefaultHTMLCursor(type);
1586 }
1587
1588
1589 //-----------------------------------------------------------------------------
1590 // wxHtmlWinModule
1591 //-----------------------------------------------------------------------------
1592
1593 // A module to allow initialization/cleanup
1594 // without calling these functions from app.cpp or from
1595 // the user's application.
1596
1597 class wxHtmlWinModule: public wxModule
1598 {
1599 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
1600 public:
1601     wxHtmlWinModule() : wxModule() {}
1602     bool OnInit() { return true; }
1603     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
1604 };
1605
1606 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
1607
1608
1609 // This hack forces the linker to always link in m_* files
1610 // (wxHTML doesn't work without handlers from these files)
1611 #include "wx/html/forcelnk.h"
1612 FORCE_WXHTML_MODULES()
1613
1614 #endif // wxUSE_HTML