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 WX_PRECOMP
  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     #include "wx/timer.h"
  26     #include "wx/settings.h"
  27     #include "wx/dataobj.h"
  28     #include "wx/statusbr.h"
  29 #endif
  30
  31 #include "wx/html/htmlwin.h"
  32 #include "wx/html/htmlproc.h"
  33 #include "wx/clipbrd.h"
  34
  35 #include "wx/arrimpl.cpp"
  36 #include "wx/listimpl.cpp"
  37
  38 // HTML events:
  39 IMPLEMENT_DYNAMIC_CLASS(wxHtmlLinkEvent, wxCommandEvent)
  40 IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellEvent, wxCommandEvent)
  41
  42 DEFINE_EVENT_TYPE(wxEVT_COMMAND_HTML_CELL_CLICKED)
  43 DEFINE_EVENT_TYPE(wxEVT_COMMAND_HTML_CELL_HOVER)
  44 DEFINE_EVENT_TYPE(wxEVT_COMMAND_HTML_LINK_CLICKED)
  45
  46
  47 #if wxUSE_CLIPBOARD
  48 // ----------------------------------------------------------------------------
  49 // wxHtmlWinAutoScrollTimer: the timer used to generate a stream of scroll
  50 // events when a captured mouse is held outside the window
  51 // ----------------------------------------------------------------------------
  52
  53 class wxHtmlWinAutoScrollTimer : public wxTimer
  54 {
  55 public:
  56     wxHtmlWinAutoScrollTimer(wxScrolledWindow *win,
  57                       wxEventType eventTypeToSend,
  58                       int pos, int orient)
  59     {
  60         m_win = win;
  61         m_eventType = eventTypeToSend;
  62         m_pos = pos;
  63         m_orient = orient;
  64     }
  65
  66     virtual void Notify();
  67
  68 private:
  69     wxScrolledWindow *m_win;
  70     wxEventType m_eventType;
  71     int m_pos,
  72         m_orient;
  73
  74     DECLARE_NO_COPY_CLASS(wxHtmlWinAutoScrollTimer)
  75 };
  76
  77 void wxHtmlWinAutoScrollTimer::Notify()
  78 {
  79     // only do all this as long as the window is capturing the mouse
  80     if ( wxWindow::GetCapture() != m_win )
  81     {
  82         Stop();
  83     }
  84     else // we still capture the mouse, continue generating events
  85     {
  86         // first scroll the window if we are allowed to do it
  87         wxScrollWinEvent event1(m_eventType, m_pos, m_orient);
  88         event1.SetEventObject(m_win);
  89         if ( m_win->GetEventHandler()->ProcessEvent(event1) )
  90         {
  91             // and then send a pseudo mouse-move event to refresh the selection
  92             wxMouseEvent event2(wxEVT_MOTION);
  93             wxGetMousePosition(&event2.m_x, &event2.m_y);
  94
  95             // the mouse event coordinates should be client, not screen as
  96             // returned by wxGetMousePosition
  97             wxWindow *parentTop = m_win;
  98             while ( parentTop->GetParent() )
  99                 parentTop = parentTop->GetParent();
 100             wxPoint ptOrig = parentTop->GetPosition();
 101             event2.m_x -= ptOrig.x;
 102             event2.m_y -= ptOrig.y;
 103
 104             event2.SetEventObject(m_win);
 105
 106             // FIXME: we don't fill in the other members - ok?
 107             m_win->GetEventHandler()->ProcessEvent(event2);
 108         }
 109         else // can't scroll further, stop
 110         {
 111             Stop();
 112         }
 113     }
 114 }
 115
 116 #endif // wxUSE_CLIPBOARD
 117
 118
 119
 120 //-----------------------------------------------------------------------------
 121 // wxHtmlHistoryItem
 122 //-----------------------------------------------------------------------------
 123
 124 // item of history list
 125 class WXDLLIMPEXP_HTML wxHtmlHistoryItem
 126 {
 127 public:
 128     wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
 129     int GetPos() const {return m_Pos;}
 130     void SetPos(int p) {m_Pos = p;}
 131     const wxString& GetPage() const {return m_Page;}
 132     const wxString& GetAnchor() const {return m_Anchor;}
 133
 134 private:
 135     wxString m_Page;
 136     wxString m_Anchor;
 137     int m_Pos;
 138 };
 139
 140
 141 //-----------------------------------------------------------------------------
 142 // our private arrays:
 143 //-----------------------------------------------------------------------------
 144
 145 WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
 146 WX_DEFINE_OBJARRAY(wxHtmlHistoryArray)
 147
 148 WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
 149 WX_DEFINE_LIST(wxHtmlProcessorList)
 150
 151 //-----------------------------------------------------------------------------
 152 // wxHtmlWindowMouseHelper
 153 //-----------------------------------------------------------------------------
 154
 155 wxHtmlWindowMouseHelper::wxHtmlWindowMouseHelper(wxHtmlWindowInterface *iface)
 156     : m_tmpMouseMoved(false),
 157       m_tmpLastLink(NULL),
 158       m_tmpLastCell(NULL),
 159       m_interface(iface)
 160 {
 161 }
 162
 163 void wxHtmlWindowMouseHelper::HandleMouseMoved()
 164 {
 165     m_tmpMouseMoved = true;
 166 }
 167
 168 bool wxHtmlWindowMouseHelper::HandleMouseClick(wxHtmlCell *rootCell,
 169                                                const wxPoint& pos,
 170                                                const wxMouseEvent& event)
 171 {
 172     if (!rootCell)
 173         return false;
 174
 175     wxHtmlCell *cell = rootCell->FindCellByPos(pos.x, pos.y);
 176     // this check is needed because FindCellByPos returns terminal cell and
 177     // containers may have empty borders -- in this case NULL will be
 178     // returned
 179     if (!cell)
 180         return false;
 181
 182     // adjust the coordinates to be relative to this cell:
 183     wxPoint relpos = pos - cell->GetAbsPos(rootCell);
 184
 185     return OnCellClicked(cell, relpos.x, relpos.y, event);
 186 }
 187
 188 void wxHtmlWindowMouseHelper::HandleIdle(wxHtmlCell *rootCell,
 189                                          const wxPoint& pos)
 190 {
 191     wxHtmlCell *cell = rootCell ? rootCell->FindCellByPos(pos.x, pos.y) : NULL;
 192
 193     if (cell != m_tmpLastCell)
 194     {
 195         wxHtmlLinkInfo *lnk = NULL;
 196         if (cell)
 197         {
 198             // adjust the coordinates to be relative to this cell:
 199             wxPoint relpos = pos - cell->GetAbsPos(rootCell);
 200             lnk = cell->GetLink(relpos.x, relpos.y);
 201         }
 202
 203         wxCursor cur;
 204         if (cell)
 205             cur = cell->GetMouseCursor(m_interface);
 206         else
 207             cur = m_interface->GetHTMLCursor(
 208                         wxHtmlWindowInterface::HTMLCursor_Default);
 209
 210         m_interface->GetHTMLWindow()->SetCursor(cur);
 211
 212         if (lnk != m_tmpLastLink)
 213         {
 214             if (lnk)
 215                 m_interface->SetHTMLStatusText(lnk->GetHref());
 216             else
 217                 m_interface->SetHTMLStatusText(wxEmptyString);
 218
 219             m_tmpLastLink = lnk;
 220         }
 221
 222         m_tmpLastCell = cell;
 223     }
 224     else // mouse moved but stayed in the same cell
 225     {
 226         if ( cell )
 227         {
 228             OnCellMouseHover(cell, pos.x, pos.y);
 229         }
 230     }
 231
 232     m_tmpMouseMoved = false;
 233 }
 234
 235 bool wxHtmlWindowMouseHelper::OnCellClicked(wxHtmlCell *cell,
 236                                             wxCoord x, wxCoord y,
 237                                             const wxMouseEvent& event)
 238 {
 239     wxHtmlCellEvent ev(wxEVT_COMMAND_HTML_CELL_CLICKED,
 240                        m_interface->GetHTMLWindow()->GetId(),
 241                        cell, wxPoint(x,y), event);
 242
 243     if (!m_interface->GetHTMLWindow()->GetEventHandler()->ProcessEvent(ev))
 244     {
 245         // if the event wasn't handled, do the default processing here:
 246
 247         wxASSERT_MSG( cell, _T("can't be called with NULL cell") );
 248
 249         cell->ProcessMouseClick(m_interface, ev.GetPoint(), ev.GetMouseEvent());
 250     }
 251
 252     // true if a link was clicked, false otherwise
 253     return ev.GetLinkClicked();
 254 }
 255
 256 void wxHtmlWindowMouseHelper::OnCellMouseHover(wxHtmlCell * cell,
 257                                                wxCoord x,
 258                                                wxCoord y)
 259 {
 260     wxHtmlCellEvent ev(wxEVT_COMMAND_HTML_CELL_HOVER,
 261                        m_interface->GetHTMLWindow()->GetId(),
 262                        cell, wxPoint(x,y), wxMouseEvent());
 263     m_interface->GetHTMLWindow()->GetEventHandler()->ProcessEvent(ev);
 264 }
 265
 266
 267
 268
 269 //-----------------------------------------------------------------------------
 270 // wxHtmlWindow
 271 //-----------------------------------------------------------------------------
 272
 273 wxList wxHtmlWindow::m_Filters;
 274 wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
 275 wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
 276 wxCursor *wxHtmlWindow::ms_cursorLink = NULL;
 277 wxCursor *wxHtmlWindow::ms_cursorText = NULL;
 278
 279 void wxHtmlWindow::CleanUpStatics()
 280 {
 281     wxDELETE(m_DefaultFilter);
 282     WX_CLEAR_LIST(wxList, m_Filters);
 283     if (m_GlobalProcessors)
 284         WX_CLEAR_LIST(wxHtmlProcessorList, *m_GlobalProcessors);
 285     wxDELETE(m_GlobalProcessors);
 286     wxDELETE(ms_cursorLink);
 287     wxDELETE(ms_cursorText);
 288 }
 289
 290 void wxHtmlWindow::Init()
 291 {
 292     m_tmpCanDrawLocks = 0;
 293     m_FS = new wxFileSystem();
 294 #if wxUSE_STATUSBAR
 295     m_RelatedStatusBar = NULL;
 296     m_RelatedStatusBarIndex = -1;
 297 #endif // wxUSE_STATUSBAR
 298     m_RelatedFrame = NULL;
 299     m_TitleFormat = wxT("%s");
 300     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 301     m_Cell = NULL;
 302     m_Parser = new wxHtmlWinParser(this);
 303     m_Parser->SetFS(m_FS);
 304     m_HistoryPos = -1;
 305     m_HistoryOn = true;
 306     m_History = new wxHtmlHistoryArray;
 307     m_Processors = NULL;
 308     SetBorders(10);
 309     m_selection = NULL;
 310     m_makingSelection = false;
 311 #if wxUSE_CLIPBOARD
 312     m_timerAutoScroll = NULL;
 313     m_lastDoubleClick = 0;
 314 #endif // wxUSE_CLIPBOARD
 315     m_backBuffer = NULL;
 316     m_eraseBgInOnPaint = false;
 317     m_tmpSelFromCell = NULL;
 318 }
 319
 320 bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
 321                           const wxPoint& pos, const wxSize& size,
 322                           long style, const wxString& name)
 323 {
 324     if (!wxScrolledWindow::Create(parent, id, pos, size,
 325                                   style | wxVSCROLL | wxHSCROLL,
 326                                   name))
 327         return false;
 328
 329     SetPage(wxT("<html><body></body></html>"));
 330     return true;
 331 }
 332
 333
 334 wxHtmlWindow::~wxHtmlWindow()
 335 {
 336 #if wxUSE_CLIPBOARD
 337     StopAutoScrolling();
 338 #endif // wxUSE_CLIPBOARD
 339     HistoryClear();
 340
 341     delete m_selection;
 342
 343     delete m_Cell;
 344
 345     if ( m_Processors )
 346     {
 347         WX_CLEAR_LIST(wxHtmlProcessorList, *m_Processors);
 348     }
 349
 350     delete m_Parser;
 351     delete m_FS;
 352     delete m_History;
 353     delete m_Processors;
 354     delete m_backBuffer;
 355 }
 356
 357
 358
 359 void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
 360 {
 361     m_RelatedFrame = frame;
 362     m_TitleFormat = format;
 363 }
 364
 365
 366
 367 #if wxUSE_STATUSBAR
 368 void wxHtmlWindow::SetRelatedStatusBar(int index)
 369 {
 370     m_RelatedStatusBarIndex = index;
 371 }
 372
 373 void wxHtmlWindow::SetRelatedStatusBar(wxStatusBar* statusbar, int index)
 374 {
 375     m_RelatedStatusBar =  statusbar;
 376     m_RelatedStatusBarIndex = index;
 377 }
 378
 379 #endif // wxUSE_STATUSBAR
 380
 381
 382
 383 void wxHtmlWindow::SetFonts(const wxString& normal_face, const wxString& fixed_face, const int *sizes)
 384 {
 385     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 386
 387     // re-layout the page after changing fonts:
 388     DoSetPage(*(m_Parser->GetSource()));
 389 }
 390
 391 void wxHtmlWindow::SetStandardFonts(int size,
 392                                     const wxString& normal_face,
 393                                     const wxString& fixed_face)
 394 {
 395     m_Parser->SetStandardFonts(size, normal_face, fixed_face);
 396
 397     // re-layout the page after changing fonts:
 398     DoSetPage(*(m_Parser->GetSource()));
 399 }
 400
 401 bool wxHtmlWindow::SetPage(const wxString& source)
 402 {
 403     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 404     return DoSetPage(source);
 405 }
 406
 407 bool wxHtmlWindow::DoSetPage(const wxString& source)
 408 {
 409     wxString newsrc(source);
 410
 411     wxDELETE(m_selection);
 412
 413     // we will soon delete all the cells, so clear pointers to them:
 414     m_tmpSelFromCell = NULL;
 415
 416     // pass HTML through registered processors:
 417     if (m_Processors || m_GlobalProcessors)
 418     {
 419         wxHtmlProcessorList::compatibility_iterator nodeL, nodeG;
 420         int prL, prG;
 421
 422         if ( m_Processors )
 423             nodeL = m_Processors->GetFirst();
 424         if ( m_GlobalProcessors )
 425             nodeG = m_GlobalProcessors->GetFirst();
 426
 427         // VS: there are two lists, global and local, both of them sorted by
 428         //     priority. Since we have to go through _both_ lists with
 429         //     decreasing priority, we "merge-sort" the lists on-line by
 430         //     processing that one of the two heads that has higher priority
 431         //     in every iteration
 432         while (nodeL || nodeG)
 433         {
 434             prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
 435             prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
 436             if (prL > prG)
 437             {
 438                 if (nodeL->GetData()->IsEnabled())
 439                     newsrc = nodeL->GetData()->Process(newsrc);
 440                 nodeL = nodeL->GetNext();
 441             }
 442             else // prL <= prG
 443             {
 444                 if (nodeG->GetData()->IsEnabled())
 445                     newsrc = nodeG->GetData()->Process(newsrc);
 446                 nodeG = nodeG->GetNext();
 447             }
 448         }
 449     }
 450
 451     // ...and run the parser on it:
 452     wxClientDC *dc = new wxClientDC(this);
 453     dc->SetMapMode(wxMM_TEXT);
 454     SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
 455     SetBackgroundImage(wxNullBitmap);
 456
 457     m_Parser->SetDC(dc);
 458     if (m_Cell)
 459     {
 460         delete m_Cell;
 461         m_Cell = NULL;
 462     }
 463     m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
 464     delete dc;
 465     m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 466     m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
 467     CreateLayout();
 468     if (m_tmpCanDrawLocks == 0)
 469         Refresh();
 470     return true;
 471 }
 472
 473 bool wxHtmlWindow::AppendToPage(const wxString& source)
 474 {
 475     return DoSetPage(*(GetParser()->GetSource()) + source);
 476 }
 477
 478 bool wxHtmlWindow::LoadPage(const wxString& location)
 479 {
 480     wxCHECK_MSG( !location.empty(), false, "location must be non-empty" );
 481
 482     wxBusyCursor busyCursor;
 483
 484     bool rt_val;
 485     bool needs_refresh = false;
 486
 487     m_tmpCanDrawLocks++;
 488     if (m_HistoryOn && (m_HistoryPos != -1))
 489     {
 490         // store scroll position into history item:
 491         int x, y;
 492         GetViewStart(&x, &y);
 493         (*m_History)[m_HistoryPos].SetPos(y);
 494     }
 495
 496     // first check if we're moving to an anchor in the same page
 497     size_t posLocalAnchor = location.Find('#');
 498     if ( posLocalAnchor != wxString::npos && posLocalAnchor != 0 )
 499     {
 500         // check if the part before the anchor is the same as the (either
 501         // relative or absolute) URI of the current page
 502         const wxString beforeAnchor = location.substr(0, posLocalAnchor);
 503         if ( beforeAnchor != m_OpenedPage &&
 504                 m_FS->GetPath() + beforeAnchor != m_OpenedPage )
 505         {
 506             // indicate that we're not moving to a local anchor
 507             posLocalAnchor = wxString::npos;
 508         }
 509     }
 510
 511     if ( posLocalAnchor != wxString::npos )
 512     {
 513         m_tmpCanDrawLocks--;
 514         rt_val = ScrollToAnchor(location.substr(posLocalAnchor + 1));
 515         m_tmpCanDrawLocks++;
 516     }
 517     else // moving to another page
 518     {
 519         needs_refresh = true;
 520 #if wxUSE_STATUSBAR
 521         // load&display it:
 522         if (m_RelatedStatusBarIndex != -1)
 523         {
 524             SetHTMLStatusText(_("Connecting..."));
 525             Refresh(false);
 526         }
 527 #endif // wxUSE_STATUSBAR
 528
 529         wxFSFile *f = m_Parser->OpenURL(wxHTML_URL_PAGE, location);
 530
 531         // try to interpret 'location' as filename instead of URL:
 532         if (f == NULL)
 533         {
 534             wxFileName fn(location);
 535             wxString location2 = wxFileSystem::FileNameToURL(fn);
 536             f = m_Parser->OpenURL(wxHTML_URL_PAGE, location2);
 537         }
 538
 539         if (f == NULL)
 540         {
 541             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 542             m_tmpCanDrawLocks--;
 543             SetHTMLStatusText(wxEmptyString);
 544             return false;
 545         }
 546
 547         else
 548         {
 549             wxList::compatibility_iterator node;
 550             wxString src = wxEmptyString;
 551
 552 #if wxUSE_STATUSBAR
 553             if (m_RelatedStatusBarIndex != -1)
 554             {
 555                 wxString msg = _("Loading : ") + location;
 556                 SetHTMLStatusText(msg);
 557                 Refresh(false);
 558             }
 559 #endif // wxUSE_STATUSBAR
 560
 561             node = m_Filters.GetFirst();
 562             while (node)
 563             {
 564                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 565                 if (h->CanRead(*f))
 566                 {
 567                     src = h->ReadFile(*f);
 568                     break;
 569                 }
 570                 node = node->GetNext();
 571             }
 572             if (src == wxEmptyString)
 573             {
 574                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 575                 src = m_DefaultFilter->ReadFile(*f);
 576             }
 577
 578             m_FS->ChangePathTo(f->GetLocation());
 579             rt_val = SetPage(src);
 580             m_OpenedPage = f->GetLocation();
 581             if (f->GetAnchor() != wxEmptyString)
 582             {
 583                 ScrollToAnchor(f->GetAnchor());
 584             }
 585
 586             delete f;
 587
 588 #if wxUSE_STATUSBAR
 589             if (m_RelatedStatusBarIndex != -1)
 590             {
 591                 SetHTMLStatusText(_("Done"));
 592             }
 593 #endif // wxUSE_STATUSBAR
 594         }
 595     }
 596
 597     if (m_HistoryOn) // add this page to history there:
 598     {
 599         int c = m_History->GetCount() - (m_HistoryPos + 1);
 600
 601         if (m_HistoryPos < 0 ||
 602             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 603             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 604         {
 605             m_HistoryPos++;
 606             for (int i = 0; i < c; i++)
 607                 m_History->RemoveAt(m_HistoryPos);
 608             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 609         }
 610     }
 611
 612     if (m_OpenedPageTitle == wxEmptyString)
 613         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 614
 615     if (needs_refresh)
 616     {
 617         m_tmpCanDrawLocks--;
 618         Refresh();
 619     }
 620     else
 621         m_tmpCanDrawLocks--;
 622
 623     return rt_val;
 624 }
 625
 626
 627 bool wxHtmlWindow::LoadFile(const wxFileName& filename)
 628 {
 629     wxString url = wxFileSystem::FileNameToURL(filename);
 630     return LoadPage(url);
 631 }
 632
 633
 634 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 635 {
 636     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 637     if (!c)
 638     {
 639         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 640         return false;
 641     }
 642     else
 643     {
 644         int y;
 645
 646         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 647         Scroll(-1, y / wxHTML_SCROLL_STEP);
 648         m_OpenedAnchor = anchor;
 649         return true;
 650     }
 651 }
 652
 653
 654 void wxHtmlWindow::OnSetTitle(const wxString& title)
 655 {
 656     if (m_RelatedFrame)
 657     {
 658         wxString tit;
 659         tit.Printf(m_TitleFormat, title.c_str());
 660         m_RelatedFrame->SetTitle(tit);
 661     }
 662     m_OpenedPageTitle = title;
 663 }
 664
 665
 666
 667
 668
 669 void wxHtmlWindow::CreateLayout()
 670 {
 671     int ClientWidth, ClientHeight;
 672
 673     if (!m_Cell) return;
 674
 675     if ( HasFlag(wxHW_SCROLLBAR_NEVER) )
 676     {
 677         SetScrollbars(1, 1, 0, 0); // always off
 678         GetClientSize(&ClientWidth, &ClientHeight);
 679         m_Cell->Layout(ClientWidth);
 680     }
 681     else // !wxHW_SCROLLBAR_NEVER
 682     {
 683         GetClientSize(&ClientWidth, &ClientHeight);
 684         m_Cell->Layout(ClientWidth);
 685         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 686         {
 687             SetScrollbars(
 688                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 689                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 690                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 691                   /*cheat: top-level frag is always container*/);
 692         }
 693         else /* we fit into window, no need for scrollbars */
 694         {
 695             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 696             GetClientSize(&ClientWidth, &ClientHeight);
 697             m_Cell->Layout(ClientWidth); // ...and relayout
 698         }
 699     }
 700 }
 701
 702
 703
 704 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 705 {
 706     wxString oldpath;
 707     wxString tmp;
 708     int p_fontsizes[7];
 709     wxString p_fff, p_ffn;
 710
 711     if (path != wxEmptyString)
 712     {
 713         oldpath = cfg->GetPath();
 714         cfg->SetPath(path);
 715     }
 716
 717     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 718     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 719     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 720     for (int i = 0; i < 7; i++)
 721     {
 722         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 723         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 724     }
 725     SetFonts(p_ffn, p_fff, p_fontsizes);
 726
 727     if (path != wxEmptyString)
 728         cfg->SetPath(oldpath);
 729 }
 730
 731
 732
 733 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 734 {
 735     wxString oldpath;
 736     wxString tmp;
 737
 738     if (path != wxEmptyString)
 739     {
 740         oldpath = cfg->GetPath();
 741         cfg->SetPath(path);
 742     }
 743
 744     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 745     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 746     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 747     for (int i = 0; i < 7; i++)
 748     {
 749         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 750         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 751     }
 752
 753     if (path != wxEmptyString)
 754         cfg->SetPath(oldpath);
 755 }
 756
 757
 758
 759 bool wxHtmlWindow::HistoryBack()
 760 {
 761     wxString a, l;
 762
 763     if (m_HistoryPos < 1) return false;
 764
 765     // store scroll position into history item:
 766     int x, y;
 767     GetViewStart(&x, &y);
 768     (*m_History)[m_HistoryPos].SetPos(y);
 769
 770     // go to previous position:
 771     m_HistoryPos--;
 772
 773     l = (*m_History)[m_HistoryPos].GetPage();
 774     a = (*m_History)[m_HistoryPos].GetAnchor();
 775     m_HistoryOn = false;
 776     m_tmpCanDrawLocks++;
 777     if (a == wxEmptyString) LoadPage(l);
 778     else LoadPage(l + wxT("#") + a);
 779     m_HistoryOn = true;
 780     m_tmpCanDrawLocks--;
 781     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 782     Refresh();
 783     return true;
 784 }
 785
 786 bool wxHtmlWindow::HistoryCanBack()
 787 {
 788     if (m_HistoryPos < 1) return false;
 789     return true ;
 790 }
 791
 792
 793 bool wxHtmlWindow::HistoryForward()
 794 {
 795     wxString a, l;
 796
 797     if (m_HistoryPos == -1) return false;
 798     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 799
 800     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 801
 802     m_HistoryPos++;
 803     l = (*m_History)[m_HistoryPos].GetPage();
 804     a = (*m_History)[m_HistoryPos].GetAnchor();
 805     m_HistoryOn = false;
 806     m_tmpCanDrawLocks++;
 807     if (a == wxEmptyString) LoadPage(l);
 808     else LoadPage(l + wxT("#") + a);
 809     m_HistoryOn = true;
 810     m_tmpCanDrawLocks--;
 811     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 812     Refresh();
 813     return true;
 814 }
 815
 816 bool wxHtmlWindow::HistoryCanForward()
 817 {
 818     if (m_HistoryPos == -1) return false;
 819     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 820     return true ;
 821 }
 822
 823
 824 void wxHtmlWindow::HistoryClear()
 825 {
 826     m_History->Empty();
 827     m_HistoryPos = -1;
 828 }
 829
 830 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 831 {
 832     if (!m_Processors)
 833     {
 834         m_Processors = new wxHtmlProcessorList;
 835     }
 836     wxHtmlProcessorList::compatibility_iterator node;
 837
 838     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 839     {
 840         if (processor->GetPriority() > node->GetData()->GetPriority())
 841         {
 842             m_Processors->Insert(node, processor);
 843             return;
 844         }
 845     }
 846     m_Processors->Append(processor);
 847 }
 848
 849 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 850 {
 851     if (!m_GlobalProcessors)
 852     {
 853         m_GlobalProcessors = new wxHtmlProcessorList;
 854     }
 855     wxHtmlProcessorList::compatibility_iterator node;
 856
 857     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 858     {
 859         if (processor->GetPriority() > node->GetData()->GetPriority())
 860         {
 861             m_GlobalProcessors->Insert(node, processor);
 862             return;
 863         }
 864     }
 865     m_GlobalProcessors->Append(processor);
 866 }
 867
 868
 869
 870 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 871 {
 872     m_Filters.Append(filter);
 873 }
 874
 875
 876 bool wxHtmlWindow::IsSelectionEnabled() const
 877 {
 878 #if wxUSE_CLIPBOARD
 879     return !HasFlag(wxHW_NO_SELECTION);
 880 #else
 881     return false;
 882 #endif
 883 }
 884
 885
 886 #if wxUSE_CLIPBOARD
 887 wxString wxHtmlWindow::DoSelectionToText(wxHtmlSelection *sel)
 888 {
 889     if ( !sel )
 890         return wxEmptyString;
 891
 892     wxClientDC dc(this);
 893
 894     const wxHtmlCell *end = sel->GetToCell();
 895     wxString text;
 896     wxHtmlTerminalCellsInterator i(sel->GetFromCell(), end);
 897     if ( i )
 898     {
 899         text << i->ConvertToText(sel);
 900         ++i;
 901     }
 902     const wxHtmlCell *prev = *i;
 903     while ( i )
 904     {
 905         if ( prev->GetParent() != i->GetParent() )
 906             text << _T('\n');
 907         text << i->ConvertToText(*i == end ? sel : NULL);
 908         prev = *i;
 909         ++i;
 910     }
 911     return text;
 912 }
 913
 914 wxString wxHtmlWindow::ToText()
 915 {
 916     if (m_Cell)
 917     {
 918         wxHtmlSelection sel;
 919         sel.Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
 920         return DoSelectionToText(&sel);
 921     }
 922     else
 923         return wxEmptyString;
 924 }
 925
 926 #endif // wxUSE_CLIPBOARD
 927
 928 bool wxHtmlWindow::CopySelection(ClipboardType t)
 929 {
 930 #if wxUSE_CLIPBOARD
 931     if ( m_selection )
 932     {
 933 #if defined(__UNIX__) && !defined(__WXMAC__)
 934         wxTheClipboard->UsePrimarySelection(t == Primary);
 935 #else // !__UNIX__
 936         // Primary selection exists only under X11, so don't do anything under
 937         // the other platforms when we try to access it
 938         //
 939         // TODO: this should be abstracted at wxClipboard level!
 940         if ( t == Primary )
 941             return false;
 942 #endif // __UNIX__/!__UNIX__
 943
 944         if ( wxTheClipboard->Open() )
 945         {
 946             const wxString txt(SelectionToText());
 947             wxTheClipboard->SetData(new wxTextDataObject(txt));
 948             wxTheClipboard->Close();
 949             wxLogTrace(_T("wxhtmlselection"),
 950                        _("Copied to clipboard:\"%s\""), txt.c_str());
 951
 952             return true;
 953         }
 954     }
 955 #else
 956     wxUnusedVar(t);
 957 #endif // wxUSE_CLIPBOARD
 958
 959     return false;
 960 }
 961
 962
 963 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 964 {
 965     wxHtmlLinkEvent event(GetId(), link);
 966     event.SetEventObject(this);
 967     if (!GetEventHandler()->ProcessEvent(event))
 968     {
 969         // the default behaviour is to load the URL in this window
 970         const wxMouseEvent *e = event.GetLinkInfo().GetEvent();
 971         if (e == NULL || e->LeftUp())
 972             LoadPage(event.GetLinkInfo().GetHref());
 973     }
 974 }
 975
 976 void wxHtmlWindow::OnEraseBackground(wxEraseEvent& event)
 977 {
 978     if ( !m_bmpBg.Ok() )
 979     {
 980         // don't even skip the event, if we don't have a bg bitmap we're going
 981         // to overwrite background in OnPaint() below anyhow, so letting the
 982         // default handling take place would only result in flicker, just set a
 983         // flag to erase the background below
 984         m_eraseBgInOnPaint = true;
 985         return;
 986     }
 987
 988     wxDC& dc = *event.GetDC();
 989
 990     // if the image is not fully opaque, we have to erase the background before
 991     // drawing it, however avoid doing it for opaque images as this would just
 992     // result in extra flicker without any other effect as background is
 993     // completely covered anyhow
 994     if ( m_bmpBg.GetMask() )
 995     {
 996         dc.SetBackground(wxBrush(GetBackgroundColour(), wxBRUSHSTYLE_SOLID));
 997         dc.Clear();
 998     }
 999
1000     const wxSize sizeWin(GetClientSize());
1001     const wxSize sizeBmp(m_bmpBg.GetWidth(), m_bmpBg.GetHeight());
1002     for ( wxCoord x = 0; x < sizeWin.x; x += sizeBmp.x )
1003     {
1004         for ( wxCoord y = 0; y < sizeWin.y; y += sizeBmp.y )
1005         {
1006             dc.DrawBitmap(m_bmpBg, x, y, true /* use mask */);
1007         }
1008     }
1009 }
1010
1011 void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
1012 {
1013     wxPaintDC dc(this);
1014
1015     if (m_tmpCanDrawLocks > 0 || m_Cell == NULL)
1016         return;
1017
1018     int x, y;
1019     GetViewStart(&x, &y);
1020     wxRect rect = GetUpdateRegion().GetBox();
1021     wxSize sz = GetSize();
1022
1023     wxMemoryDC dcm;
1024     if ( !m_backBuffer )
1025         m_backBuffer = new wxBitmap(sz.x, sz.y);
1026     dcm.SelectObject(*m_backBuffer);
1027
1028     if ( m_eraseBgInOnPaint )
1029     {
1030         dcm.SetBackground(wxBrush(GetBackgroundColour(), wxBRUSHSTYLE_SOLID));
1031         dcm.Clear();
1032
1033         m_eraseBgInOnPaint = false;
1034     }
1035     else // someone has already erased the background, keep it
1036     {
1037         // preserve the existing background, otherwise we'd erase anything the
1038         // user code had drawn in its EVT_ERASE_BACKGROUND handler when we do
1039         // the Blit back below
1040         dcm.Blit(0, rect.GetTop(),
1041                  sz.x, rect.GetBottom() - rect.GetTop() + 1,
1042                  &dc,
1043                  0, rect.GetTop());
1044     }
1045
1046     PrepareDC(dcm);
1047     dcm.SetMapMode(wxMM_TEXT);
1048     dcm.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
1049
1050     wxHtmlRenderingInfo rinfo;
1051     wxDefaultHtmlRenderingStyle rstyle;
1052     rinfo.SetSelection(m_selection);
1053     rinfo.SetStyle(&rstyle);
1054     m_Cell->Draw(dcm, 0, 0,
1055                  y * wxHTML_SCROLL_STEP + rect.GetTop(),
1056                  y * wxHTML_SCROLL_STEP + rect.GetBottom(),
1057                  rinfo);
1058
1059 //#define DEBUG_HTML_SELECTION
1060 #ifdef DEBUG_HTML_SELECTION
1061     {
1062     int xc, yc, x, y;
1063     wxGetMousePosition(&xc, &yc);
1064     ScreenToClient(&xc, &yc);
1065     CalcUnscrolledPosition(xc, yc, &x, &y);
1066     wxHtmlCell *at = m_Cell->FindCellByPos(x, y);
1067     wxHtmlCell *before =
1068         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_BEFORE);
1069     wxHtmlCell *after =
1070         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_AFTER);
1071
1072     dcm.SetBrush(*wxTRANSPARENT_BRUSH);
1073     dcm.SetPen(*wxBLACK_PEN);
1074     if (at)
1075         dcm.DrawRectangle(at->GetAbsPos(),
1076                           wxSize(at->GetWidth(),at->GetHeight()));
1077     dcm.SetPen(*wxGREEN_PEN);
1078     if (before)
1079         dcm.DrawRectangle(before->GetAbsPos().x+1, before->GetAbsPos().y+1,
1080                           before->GetWidth()-2,before->GetHeight()-2);
1081     dcm.SetPen(*wxRED_PEN);
1082     if (after)
1083         dcm.DrawRectangle(after->GetAbsPos().x+2, after->GetAbsPos().y+2,
1084                           after->GetWidth()-4,after->GetHeight()-4);
1085     }
1086 #endif
1087
1088     dcm.SetDeviceOrigin(0,0);
1089     dc.Blit(0, rect.GetTop(),
1090             sz.x, rect.GetBottom() - rect.GetTop() + 1,
1091             &dcm,
1092             0, rect.GetTop());
1093 }
1094
1095
1096
1097
1098 void wxHtmlWindow::OnSize(wxSizeEvent& event)
1099 {
1100     wxDELETE(m_backBuffer);
1101
1102     wxScrolledWindow::OnSize(event);
1103     CreateLayout();
1104
1105     // Recompute selection if necessary:
1106     if ( m_selection )
1107     {
1108         m_selection->Set(m_selection->GetFromCell(),
1109                          m_selection->GetToCell());
1110         m_selection->ClearPrivPos();
1111     }
1112
1113     Refresh();
1114 }
1115
1116
1117 void wxHtmlWindow::OnMouseMove(wxMouseEvent& WXUNUSED(event))
1118 {
1119     wxHtmlWindowMouseHelper::HandleMouseMoved();
1120 }
1121
1122 void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
1123 {
1124 #if wxUSE_CLIPBOARD
1125     if ( event.LeftDown() && IsSelectionEnabled() )
1126     {
1127         const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
1128         if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
1129         {
1130             SelectLine(CalcUnscrolledPosition(event.GetPosition()));
1131
1132             (void) CopySelection();
1133         }
1134         else
1135         {
1136             m_makingSelection = true;
1137
1138             if ( m_selection )
1139             {
1140                 wxDELETE(m_selection);
1141                 Refresh();
1142             }
1143             m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
1144             m_tmpSelFromCell = NULL;
1145
1146             CaptureMouse();
1147         }
1148     }
1149 #endif // wxUSE_CLIPBOARD
1150
1151     // in any case, let the default handler set focus to this window
1152     event.Skip();
1153 }
1154
1155 void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
1156 {
1157 #if wxUSE_CLIPBOARD
1158     if ( m_makingSelection )
1159     {
1160         ReleaseMouse();
1161         m_makingSelection = false;
1162
1163         // if m_selection=NULL, the user didn't move the mouse far enough from
1164         // starting point and the mouse up event is part of a click, the user
1165         // is not selecting text:
1166         if ( m_selection )
1167         {
1168             CopySelection(Primary);
1169
1170             // we don't want mouse up event that ended selecting to be
1171             // handled as mouse click and e.g. follow hyperlink:
1172             return;
1173         }
1174     }
1175 #endif // wxUSE_CLIPBOARD
1176
1177     wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
1178     wxHtmlWindowMouseHelper::HandleMouseClick(m_Cell, pos, event);
1179 }
1180
1181 #if wxUSE_CLIPBOARD
1182 void wxHtmlWindow::OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
1183 {
1184     if ( !m_makingSelection )
1185         return;
1186
1187     // discard the selecting operation
1188     m_makingSelection = false;
1189     wxDELETE(m_selection);
1190     m_tmpSelFromCell = NULL;
1191     Refresh();
1192 }
1193 #endif // wxUSE_CLIPBOARD
1194
1195
1196 void wxHtmlWindow::OnInternalIdle()
1197 {
1198     wxWindow::OnInternalIdle();
1199
1200     if (m_Cell != NULL && DidMouseMove())
1201     {
1202 #ifdef DEBUG_HTML_SELECTION
1203         Refresh();
1204 #endif
1205         int xc, yc, x, y;
1206         wxGetMousePosition(&xc, &yc);
1207         ScreenToClient(&xc, &yc);
1208         CalcUnscrolledPosition(xc, yc, &x, &y);
1209
1210         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
1211
1212         // handle selection update:
1213         if ( m_makingSelection )
1214         {
1215             if ( !m_tmpSelFromCell )
1216                 m_tmpSelFromCell = m_Cell->FindCellByPos(
1217                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y);
1218
1219             // NB: a trick - we adjust selFromPos to be upper left or bottom
1220             //     right corner of the first cell of the selection depending
1221             //     on whether the mouse is moving to the right or to the left.
1222             //     This gives us more "natural" behaviour when selecting
1223             //     a line (specifically, first cell of the next line is not
1224             //     included if you drag selection from left to right over
1225             //     entire line):
1226             wxPoint dirFromPos;
1227             if ( !m_tmpSelFromCell )
1228             {
1229                 dirFromPos = m_tmpSelFromPos;
1230             }
1231             else
1232             {
1233                 dirFromPos = m_tmpSelFromCell->GetAbsPos();
1234                 if ( x < m_tmpSelFromPos.x )
1235                 {
1236                     dirFromPos.x += m_tmpSelFromCell->GetWidth();
1237                     dirFromPos.y += m_tmpSelFromCell->GetHeight();
1238                 }
1239             }
1240             bool goingDown = dirFromPos.y < y ||
1241                              (dirFromPos.y == y && dirFromPos.x < x);
1242
1243             // determine selection span:
1244             if ( /*still*/ !m_tmpSelFromCell )
1245             {
1246                 if (goingDown)
1247                 {
1248                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1249                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1250                                          wxHTML_FIND_NEAREST_AFTER);
1251                     if (!m_tmpSelFromCell)
1252                         m_tmpSelFromCell = m_Cell->GetFirstTerminal();
1253                 }
1254                 else
1255                 {
1256                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1257                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1258                                          wxHTML_FIND_NEAREST_BEFORE);
1259                     if (!m_tmpSelFromCell)
1260                         m_tmpSelFromCell = m_Cell->GetLastTerminal();
1261                 }
1262             }
1263
1264             wxHtmlCell *selcell = cell;
1265             if (!selcell)
1266             {
1267                 if (goingDown)
1268                 {
1269                     selcell = m_Cell->FindCellByPos(x, y,
1270                                                  wxHTML_FIND_NEAREST_BEFORE);
1271                     if (!selcell)
1272                         selcell = m_Cell->GetLastTerminal();
1273                 }
1274                 else
1275                 {
1276                     selcell = m_Cell->FindCellByPos(x, y,
1277                                                  wxHTML_FIND_NEAREST_AFTER);
1278                     if (!selcell)
1279                         selcell = m_Cell->GetFirstTerminal();
1280                 }
1281             }
1282
1283             // NB: it may *rarely* happen that the code above didn't find one
1284             //     of the cells, e.g. if wxHtmlWindow doesn't contain any
1285             //     visible cells.
1286             if ( selcell && m_tmpSelFromCell )
1287             {
1288                 if ( !m_selection )
1289                 {
1290                     // start selecting only if mouse movement was big enough
1291                     // (otherwise it was meant as mouse click, not selection):
1292                     const int PRECISION = 2;
1293                     wxPoint diff = m_tmpSelFromPos - wxPoint(x,y);
1294                     if (abs(diff.x) > PRECISION || abs(diff.y) > PRECISION)
1295                     {
1296                         m_selection = new wxHtmlSelection();
1297                     }
1298                 }
1299                 if ( m_selection )
1300                 {
1301                     if ( m_tmpSelFromCell->IsBefore(selcell) )
1302                     {
1303                         m_selection->Set(m_tmpSelFromPos, m_tmpSelFromCell,
1304                                          wxPoint(x,y), selcell);
1305                     }
1306                     else
1307                     {
1308                         m_selection->Set(wxPoint(x,y), selcell,
1309                                          m_tmpSelFromPos, m_tmpSelFromCell);
1310                     }
1311                     m_selection->ClearPrivPos();
1312                     Refresh();
1313                 }
1314             }
1315         }
1316
1317         // handle cursor and status bar text changes:
1318
1319         // NB: because we're passing in 'cell' and not 'm_Cell' (so that the
1320         //     leaf cell lookup isn't done twice), we need to adjust the
1321         //     position for the new root:
1322         wxPoint posInCell(x, y);
1323         if (cell)
1324             posInCell -= cell->GetAbsPos();
1325         wxHtmlWindowMouseHelper::HandleIdle(cell, posInCell);
1326     }
1327 }
1328
1329 #if wxUSE_CLIPBOARD
1330 void wxHtmlWindow::StopAutoScrolling()
1331 {
1332     if ( m_timerAutoScroll )
1333     {
1334         wxDELETE(m_timerAutoScroll);
1335     }
1336 }
1337
1338 void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event)
1339 {
1340     StopAutoScrolling();
1341     event.Skip();
1342 }
1343
1344 void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
1345 {
1346     // don't prevent the usual processing of the event from taking place
1347     event.Skip();
1348
1349     // when a captured mouse leave a scrolled window we start generate
1350     // scrolling events to allow, for example, extending selection beyond the
1351     // visible area in some controls
1352     if ( wxWindow::GetCapture() == this )
1353     {
1354         // where is the mouse leaving?
1355         int pos, orient;
1356         wxPoint pt = event.GetPosition();
1357         if ( pt.x < 0 )
1358         {
1359             orient = wxHORIZONTAL;
1360             pos = 0;
1361         }
1362         else if ( pt.y < 0 )
1363         {
1364             orient = wxVERTICAL;
1365             pos = 0;
1366         }
1367         else // we're lower or to the right of the window
1368         {
1369             wxSize size = GetClientSize();
1370             if ( pt.x > size.x )
1371             {
1372                 orient = wxHORIZONTAL;
1373                 pos = GetVirtualSize().x / wxHTML_SCROLL_STEP;
1374             }
1375             else if ( pt.y > size.y )
1376             {
1377                 orient = wxVERTICAL;
1378                 pos = GetVirtualSize().y / wxHTML_SCROLL_STEP;
1379             }
1380             else // this should be impossible
1381             {
1382                 // but seems to happen sometimes under wxMSW - maybe it's a bug
1383                 // there but for now just ignore it
1384
1385                 //wxFAIL_MSG( _T("can't understand where has mouse gone") );
1386
1387                 return;
1388             }
1389         }
1390
1391         // only start the auto scroll timer if the window can be scrolled in
1392         // this direction
1393         if ( !HasScrollbar(orient) )
1394             return;
1395
1396         delete m_timerAutoScroll;
1397         m_timerAutoScroll = new wxHtmlWinAutoScrollTimer
1398                                 (
1399                                     this,
1400                                     pos == 0 ? wxEVT_SCROLLWIN_LINEUP
1401                                              : wxEVT_SCROLLWIN_LINEDOWN,
1402                                     pos,
1403                                     orient
1404                                 );
1405         m_timerAutoScroll->Start(50); // FIXME: make configurable
1406     }
1407 }
1408
1409 void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
1410 {
1411     if ( IsSelectionEnabled() &&
1412             (event.GetKeyCode() == 'C' && event.CmdDown()) )
1413     {
1414         wxClipboardTextEvent evt(wxEVT_COMMAND_TEXT_COPY, GetId());
1415
1416         evt.SetEventObject(this);
1417
1418         GetEventHandler()->ProcessEvent(evt);
1419     }
1420 }
1421
1422 void wxHtmlWindow::OnCopy(wxCommandEvent& WXUNUSED(event))
1423 {
1424     (void) CopySelection();
1425 }
1426
1427 void wxHtmlWindow::OnClipboardEvent(wxClipboardTextEvent& WXUNUSED(event))
1428 {
1429     (void) CopySelection();
1430 }
1431
1432 void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event)
1433 {
1434     // select word under cursor:
1435     if ( IsSelectionEnabled() )
1436     {
1437         SelectWord(CalcUnscrolledPosition(event.GetPosition()));
1438
1439         (void) CopySelection(Primary);
1440
1441         m_lastDoubleClick = wxGetLocalTimeMillis();
1442     }
1443     else
1444         event.Skip();
1445 }
1446
1447 void wxHtmlWindow::SelectWord(const wxPoint& pos)
1448 {
1449     if ( m_Cell )
1450     {
1451         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1452         if ( cell )
1453         {
1454             delete m_selection;
1455             m_selection = new wxHtmlSelection();
1456             m_selection->Set(cell, cell);
1457             RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
1458                                wxSize(cell->GetWidth(), cell->GetHeight())));
1459         }
1460     }
1461 }
1462
1463 void wxHtmlWindow::SelectLine(const wxPoint& pos)
1464 {
1465     if ( m_Cell )
1466     {
1467         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1468         if ( cell )
1469         {
1470             // We use following heuristic to find a "line": let the line be all
1471             // cells in same container as the cell under mouse cursor that are
1472             // neither completely above nor completely bellow the clicked cell
1473             // (i.e. are likely to be words positioned on same line of text).
1474
1475             int y1 = cell->GetAbsPos().y;
1476             int y2 = y1 + cell->GetHeight();
1477             int y;
1478             const wxHtmlCell *c;
1479             const wxHtmlCell *before = NULL;
1480             const wxHtmlCell *after = NULL;
1481
1482             // find last cell of line:
1483             for ( c = cell->GetNext(); c; c = c->GetNext())
1484             {
1485                 y = c->GetAbsPos().y;
1486                 if ( y + c->GetHeight() > y1 && y < y2 )
1487                     after = c;
1488                 else
1489                     break;
1490             }
1491             if ( !after )
1492                 after = cell;
1493
1494             // find first cell of line:
1495             for ( c = cell->GetParent()->GetFirstChild();
1496                     c && c != cell; c = c->GetNext())
1497             {
1498                 y = c->GetAbsPos().y;
1499                 if ( y + c->GetHeight() > y1 && y < y2 )
1500                 {
1501                     if ( ! before )
1502                         before = c;
1503                 }
1504                 else
1505                     before = NULL;
1506             }
1507             if ( !before )
1508                 before = cell;
1509
1510             delete m_selection;
1511             m_selection = new wxHtmlSelection();
1512             m_selection->Set(before, after);
1513
1514             Refresh();
1515         }
1516     }
1517 }
1518
1519 void wxHtmlWindow::SelectAll()
1520 {
1521     if ( m_Cell )
1522     {
1523         delete m_selection;
1524         m_selection = new wxHtmlSelection();
1525         m_selection->Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
1526         Refresh();
1527     }
1528 }
1529
1530 #endif // wxUSE_CLIPBOARD
1531
1532
1533
1534 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
1535
1536 #if wxUSE_EXTENDED_RTTI
1537 IMPLEMENT_DYNAMIC_CLASS_XTI(wxHtmlWindow, wxScrolledWindow,"wx/html/htmlwin.h")
1538
1539 wxBEGIN_PROPERTIES_TABLE(wxHtmlWindow)
1540 /*
1541     TODO PROPERTIES
1542         style , wxHW_SCROLLBAR_AUTO
1543         borders , (dimension)
1544         url , string
1545         htmlcode , string
1546 */
1547 wxEND_PROPERTIES_TABLE()
1548
1549 wxBEGIN_HANDLERS_TABLE(wxHtmlWindow)
1550 wxEND_HANDLERS_TABLE()
1551
1552 wxCONSTRUCTOR_5( wxHtmlWindow , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
1553 #else
1554 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
1555 #endif
1556
1557 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
1558     EVT_SIZE(wxHtmlWindow::OnSize)
1559     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseDown)
1560     EVT_LEFT_UP(wxHtmlWindow::OnMouseUp)
1561     EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp)
1562     EVT_MOTION(wxHtmlWindow::OnMouseMove)
1563     EVT_ERASE_BACKGROUND(wxHtmlWindow::OnEraseBackground)
1564     EVT_PAINT(wxHtmlWindow::OnPaint)
1565 #if wxUSE_CLIPBOARD
1566     EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick)
1567     EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter)
1568     EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave)
1569     EVT_MOUSE_CAPTURE_LOST(wxHtmlWindow::OnMouseCaptureLost)
1570     EVT_KEY_UP(wxHtmlWindow::OnKeyUp)
1571     EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy)
1572     EVT_TEXT_COPY(wxID_ANY, wxHtmlWindow::OnClipboardEvent)
1573 #endif // wxUSE_CLIPBOARD
1574 END_EVENT_TABLE()
1575
1576 //-----------------------------------------------------------------------------
1577 // wxHtmlWindowInterface implementation in wxHtmlWindow
1578 //-----------------------------------------------------------------------------
1579
1580 void wxHtmlWindow::SetHTMLWindowTitle(const wxString& title)
1581 {
1582     OnSetTitle(title);
1583 }
1584
1585 void wxHtmlWindow::OnHTMLLinkClicked(const wxHtmlLinkInfo& link)
1586 {
1587     OnLinkClicked(link);
1588 }
1589
1590 wxHtmlOpeningStatus wxHtmlWindow::OnHTMLOpeningURL(wxHtmlURLType type,
1591                                                    const wxString& url,
1592                                                    wxString *redirect) const
1593 {
1594     return OnOpeningURL(type, url, redirect);
1595 }
1596
1597 wxPoint wxHtmlWindow::HTMLCoordsToWindow(wxHtmlCell *WXUNUSED(cell),
1598                                          const wxPoint& pos) const
1599 {
1600     return CalcScrolledPosition(pos);
1601 }
1602
1603 wxWindow* wxHtmlWindow::GetHTMLWindow()
1604 {
1605     return this;
1606 }
1607
1608 wxColour wxHtmlWindow::GetHTMLBackgroundColour() const
1609 {
1610     return GetBackgroundColour();
1611 }
1612
1613 void wxHtmlWindow::SetHTMLBackgroundColour(const wxColour& clr)
1614 {
1615     SetBackgroundColour(clr);
1616 }
1617
1618 void wxHtmlWindow::SetHTMLBackgroundImage(const wxBitmap& bmpBg)
1619 {
1620     SetBackgroundImage(bmpBg);
1621 }
1622
1623 void wxHtmlWindow::SetHTMLStatusText(const wxString& text)
1624 {
1625 #if wxUSE_STATUSBAR
1626     if (m_RelatedStatusBarIndex != -1)
1627     {
1628         if (m_RelatedStatusBar)
1629         {
1630             m_RelatedStatusBar->SetStatusText(text, m_RelatedStatusBarIndex);
1631         }
1632         else if (m_RelatedFrame)
1633         {
1634             m_RelatedFrame->SetStatusText(text, m_RelatedStatusBarIndex);
1635         }
1636     }
1637 #else
1638     wxUnusedVar(text);
1639 #endif // wxUSE_STATUSBAR
1640 }
1641
1642 /*static*/
1643 wxCursor wxHtmlWindow::GetDefaultHTMLCursor(HTMLCursor type)
1644 {
1645     switch (type)
1646     {
1647         case HTMLCursor_Link:
1648             if ( !ms_cursorLink )
1649                 ms_cursorLink = new wxCursor(wxCURSOR_HAND);
1650             return *ms_cursorLink;
1651
1652         case HTMLCursor_Text:
1653             if ( !ms_cursorText )
1654                 ms_cursorText = new wxCursor(wxCURSOR_IBEAM);
1655             return *ms_cursorText;
1656
1657         case HTMLCursor_Default:
1658         default:
1659             return *wxSTANDARD_CURSOR;
1660     }
1661 }
1662
1663 wxCursor wxHtmlWindow::GetHTMLCursor(HTMLCursor type) const
1664 {
1665     return GetDefaultHTMLCursor(type);
1666 }
1667
1668
1669 //-----------------------------------------------------------------------------
1670 // wxHtmlWinModule
1671 //-----------------------------------------------------------------------------
1672
1673 // A module to allow initialization/cleanup
1674 // without calling these functions from app.cpp or from
1675 // the user's application.
1676
1677 class wxHtmlWinModule: public wxModule
1678 {
1679 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
1680 public:
1681     wxHtmlWinModule() : wxModule() {}
1682     bool OnInit() { return true; }
1683     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
1684 };
1685
1686 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
1687
1688
1689 // This hack forces the linker to always link in m_* files
1690 // (wxHTML doesn't work without handlers from these files)
1691 #include "wx/html/forcelnk.h"
1692 FORCE_WXHTML_MODULES()
1693
1694 #endif // wxUSE_HTML