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 // uncomment this line to visually show the extent of the selection
  39 //#define DEBUG_HTML_SELECTION
  40
  41 // HTML events:
  42 IMPLEMENT_DYNAMIC_CLASS(wxHtmlLinkEvent, wxCommandEvent)
  43 IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellEvent, wxCommandEvent)
  44
  45 wxDEFINE_EVENT( wxEVT_COMMAND_HTML_CELL_CLICKED, wxHtmlCellEvent );
  46 wxDEFINE_EVENT( wxEVT_COMMAND_HTML_CELL_HOVER, wxHtmlCellEvent );
  47 wxDEFINE_EVENT( wxEVT_COMMAND_HTML_LINK_CLICKED, wxHtmlLinkEvent );
  48
  49
  50 #if wxUSE_CLIPBOARD
  51 // ----------------------------------------------------------------------------
  52 // wxHtmlWinAutoScrollTimer: the timer used to generate a stream of scroll
  53 // events when a captured mouse is held outside the window
  54 // ----------------------------------------------------------------------------
  55
  56 class wxHtmlWinAutoScrollTimer : public wxTimer
  57 {
  58 public:
  59     wxHtmlWinAutoScrollTimer(wxScrolledWindow *win,
  60                       wxEventType eventTypeToSend,
  61                       int pos, int orient)
  62     {
  63         m_win = win;
  64         m_eventType = eventTypeToSend;
  65         m_pos = pos;
  66         m_orient = orient;
  67     }
  68
  69     virtual void Notify();
  70
  71 private:
  72     wxScrolledWindow *m_win;
  73     wxEventType m_eventType;
  74     int m_pos,
  75         m_orient;
  76
  77     wxDECLARE_NO_COPY_CLASS(wxHtmlWinAutoScrollTimer);
  78 };
  79
  80 void wxHtmlWinAutoScrollTimer::Notify()
  81 {
  82     // only do all this as long as the window is capturing the mouse
  83     if ( wxWindow::GetCapture() != m_win )
  84     {
  85         Stop();
  86     }
  87     else // we still capture the mouse, continue generating events
  88     {
  89         // first scroll the window if we are allowed to do it
  90         wxScrollWinEvent event1(m_eventType, m_pos, m_orient);
  91         event1.SetEventObject(m_win);
  92         if ( m_win->GetEventHandler()->ProcessEvent(event1) )
  93         {
  94             // and then send a pseudo mouse-move event to refresh the selection
  95             wxMouseEvent event2(wxEVT_MOTION);
  96             wxGetMousePosition(&event2.m_x, &event2.m_y);
  97
  98             // the mouse event coordinates should be client, not screen as
  99             // returned by wxGetMousePosition
 100             wxWindow *parentTop = m_win;
 101             while ( parentTop->GetParent() )
 102                 parentTop = parentTop->GetParent();
 103             wxPoint ptOrig = parentTop->GetPosition();
 104             event2.m_x -= ptOrig.x;
 105             event2.m_y -= ptOrig.y;
 106
 107             event2.SetEventObject(m_win);
 108
 109             // FIXME: we don't fill in the other members - ok?
 110             m_win->GetEventHandler()->ProcessEvent(event2);
 111         }
 112         else // can't scroll further, stop
 113         {
 114             Stop();
 115         }
 116     }
 117 }
 118
 119 #endif // wxUSE_CLIPBOARD
 120
 121
 122
 123 //-----------------------------------------------------------------------------
 124 // wxHtmlHistoryItem
 125 //-----------------------------------------------------------------------------
 126
 127 // item of history list
 128 class WXDLLIMPEXP_HTML wxHtmlHistoryItem
 129 {
 130 public:
 131     wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
 132     int GetPos() const {return m_Pos;}
 133     void SetPos(int p) {m_Pos = p;}
 134     const wxString& GetPage() const {return m_Page;}
 135     const wxString& GetAnchor() const {return m_Anchor;}
 136
 137 private:
 138     wxString m_Page;
 139     wxString m_Anchor;
 140     int m_Pos;
 141 };
 142
 143
 144 //-----------------------------------------------------------------------------
 145 // our private arrays:
 146 //-----------------------------------------------------------------------------
 147
 148 WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
 149 WX_DEFINE_OBJARRAY(wxHtmlHistoryArray)
 150
 151 WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
 152 WX_DEFINE_LIST(wxHtmlProcessorList)
 153
 154 //-----------------------------------------------------------------------------
 155 // wxHtmlWindowMouseHelper
 156 //-----------------------------------------------------------------------------
 157
 158 wxHtmlWindowMouseHelper::wxHtmlWindowMouseHelper(wxHtmlWindowInterface *iface)
 159     : m_tmpMouseMoved(false),
 160       m_tmpLastLink(NULL),
 161       m_tmpLastCell(NULL),
 162       m_interface(iface)
 163 {
 164 }
 165
 166 void wxHtmlWindowMouseHelper::HandleMouseMoved()
 167 {
 168     m_tmpMouseMoved = true;
 169 }
 170
 171 bool wxHtmlWindowMouseHelper::HandleMouseClick(wxHtmlCell *rootCell,
 172                                                const wxPoint& pos,
 173                                                const wxMouseEvent& event)
 174 {
 175     if (!rootCell)
 176         return false;
 177
 178     wxHtmlCell *cell = rootCell->FindCellByPos(pos.x, pos.y);
 179     // this check is needed because FindCellByPos returns terminal cell and
 180     // containers may have empty borders -- in this case NULL will be
 181     // returned
 182     if (!cell)
 183         return false;
 184
 185     // adjust the coordinates to be relative to this cell:
 186     wxPoint relpos = pos - cell->GetAbsPos(rootCell);
 187
 188     return OnCellClicked(cell, relpos.x, relpos.y, event);
 189 }
 190
 191 void wxHtmlWindowMouseHelper::HandleIdle(wxHtmlCell *rootCell,
 192                                          const wxPoint& pos)
 193 {
 194     wxHtmlCell *cell = rootCell ? rootCell->FindCellByPos(pos.x, pos.y) : NULL;
 195
 196     if (cell != m_tmpLastCell)
 197     {
 198         wxHtmlLinkInfo *lnk = NULL;
 199         if (cell)
 200         {
 201             // adjust the coordinates to be relative to this cell:
 202             wxPoint relpos = pos - cell->GetAbsPos(rootCell);
 203             lnk = cell->GetLink(relpos.x, relpos.y);
 204         }
 205
 206         wxCursor cur;
 207         if (cell)
 208             cur = cell->GetMouseCursor(m_interface);
 209         else
 210             cur = m_interface->GetHTMLCursor(
 211                         wxHtmlWindowInterface::HTMLCursor_Default);
 212
 213         m_interface->GetHTMLWindow()->SetCursor(cur);
 214
 215         if (lnk != m_tmpLastLink)
 216         {
 217             if (lnk)
 218                 m_interface->SetHTMLStatusText(lnk->GetHref());
 219             else
 220                 m_interface->SetHTMLStatusText(wxEmptyString);
 221
 222             m_tmpLastLink = lnk;
 223         }
 224
 225         m_tmpLastCell = cell;
 226     }
 227     else // mouse moved but stayed in the same cell
 228     {
 229         if ( cell )
 230         {
 231             OnCellMouseHover(cell, pos.x, pos.y);
 232         }
 233     }
 234
 235     m_tmpMouseMoved = false;
 236 }
 237
 238 bool wxHtmlWindowMouseHelper::OnCellClicked(wxHtmlCell *cell,
 239                                             wxCoord x, wxCoord y,
 240                                             const wxMouseEvent& event)
 241 {
 242     wxHtmlCellEvent ev(wxEVT_COMMAND_HTML_CELL_CLICKED,
 243                        m_interface->GetHTMLWindow()->GetId(),
 244                        cell, wxPoint(x,y), event);
 245
 246     if (!m_interface->GetHTMLWindow()->GetEventHandler()->ProcessEvent(ev))
 247     {
 248         // if the event wasn't handled, do the default processing here:
 249
 250         wxASSERT_MSG( cell, wxT("can't be called with NULL cell") );
 251
 252         cell->ProcessMouseClick(m_interface, ev.GetPoint(), ev.GetMouseEvent());
 253     }
 254
 255     // true if a link was clicked, false otherwise
 256     return ev.GetLinkClicked();
 257 }
 258
 259 void wxHtmlWindowMouseHelper::OnCellMouseHover(wxHtmlCell * cell,
 260                                                wxCoord x,
 261                                                wxCoord y)
 262 {
 263     wxHtmlCellEvent ev(wxEVT_COMMAND_HTML_CELL_HOVER,
 264                        m_interface->GetHTMLWindow()->GetId(),
 265                        cell, wxPoint(x,y), wxMouseEvent());
 266     m_interface->GetHTMLWindow()->GetEventHandler()->ProcessEvent(ev);
 267 }
 268
 269
 270
 271
 272 //-----------------------------------------------------------------------------
 273 // wxHtmlWindow
 274 //-----------------------------------------------------------------------------
 275
 276 wxList wxHtmlWindow::m_Filters;
 277 wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
 278 wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
 279 wxCursor *wxHtmlWindow::ms_cursorLink = NULL;
 280 wxCursor *wxHtmlWindow::ms_cursorText = NULL;
 281
 282 void wxHtmlWindow::CleanUpStatics()
 283 {
 284     wxDELETE(m_DefaultFilter);
 285     WX_CLEAR_LIST(wxList, m_Filters);
 286     if (m_GlobalProcessors)
 287         WX_CLEAR_LIST(wxHtmlProcessorList, *m_GlobalProcessors);
 288     wxDELETE(m_GlobalProcessors);
 289     wxDELETE(ms_cursorLink);
 290     wxDELETE(ms_cursorText);
 291 }
 292
 293 void wxHtmlWindow::Init()
 294 {
 295     m_tmpCanDrawLocks = 0;
 296     m_FS = new wxFileSystem();
 297 #if wxUSE_STATUSBAR
 298     m_RelatedStatusBar = NULL;
 299     m_RelatedStatusBarIndex = -1;
 300 #endif // wxUSE_STATUSBAR
 301     m_RelatedFrame = NULL;
 302     m_TitleFormat = wxT("%s");
 303     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 304     m_Cell = NULL;
 305     m_Parser = new wxHtmlWinParser(this);
 306     m_Parser->SetFS(m_FS);
 307     m_HistoryPos = -1;
 308     m_HistoryOn = true;
 309     m_History = new wxHtmlHistoryArray;
 310     m_Processors = NULL;
 311     SetBorders(10);
 312     m_selection = NULL;
 313     m_makingSelection = false;
 314 #if wxUSE_CLIPBOARD
 315     m_timerAutoScroll = NULL;
 316     m_lastDoubleClick = 0;
 317 #endif // wxUSE_CLIPBOARD
 318     m_tmpSelFromCell = NULL;
 319 }
 320
 321 bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
 322                           const wxPoint& pos, const wxSize& size,
 323                           long style, const wxString& name)
 324 {
 325     if (!wxScrolledWindow::Create(parent, id, pos, size,
 326                                   style | wxVSCROLL | wxHSCROLL,
 327                                   name))
 328         return false;
 329
 330     // We can't erase our background in EVT_ERASE_BACKGROUND handler and use
 331     // double buffering in EVT_PAINT handler as this requires blitting back
 332     // something already drawn on the window to the backing store bitmap when
 333     // handling EVT_PAINT but blitting in this direction is simply not
 334     // supported by OS X.
 335     //
 336     // So instead we use a hack with artificial EVT_ERASE_BACKGROUND generation
 337     // from OnPaint() and this means that we never need the "real" erase event
 338     // at all so disable it to avoid executing any user-defined handlers twice
 339     // (and to avoid processing unnecessary event if no handlers are defined).
 340     SetBackgroundStyle(wxBG_STYLE_PAINT);
 341     SetPage(wxT("<html><body></body></html>"));
 342
 343     SetInitialSize(size);
 344     return true;
 345 }
 346
 347
 348 wxHtmlWindow::~wxHtmlWindow()
 349 {
 350 #if wxUSE_CLIPBOARD
 351     StopAutoScrolling();
 352 #endif // wxUSE_CLIPBOARD
 353     HistoryClear();
 354
 355     delete m_selection;
 356
 357     delete m_Cell;
 358
 359     if ( m_Processors )
 360     {
 361         WX_CLEAR_LIST(wxHtmlProcessorList, *m_Processors);
 362     }
 363
 364     delete m_Parser;
 365     delete m_FS;
 366     delete m_History;
 367     delete m_Processors;
 368 }
 369
 370
 371
 372 void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
 373 {
 374     m_RelatedFrame = frame;
 375     m_TitleFormat = format;
 376 }
 377
 378
 379
 380 #if wxUSE_STATUSBAR
 381 void wxHtmlWindow::SetRelatedStatusBar(int index)
 382 {
 383     m_RelatedStatusBarIndex = index;
 384 }
 385
 386 void wxHtmlWindow::SetRelatedStatusBar(wxStatusBar* statusbar, int index)
 387 {
 388     m_RelatedStatusBar =  statusbar;
 389     m_RelatedStatusBarIndex = index;
 390 }
 391
 392 #endif // wxUSE_STATUSBAR
 393
 394
 395
 396 void wxHtmlWindow::SetFonts(const wxString& normal_face, const wxString& fixed_face, const int *sizes)
 397 {
 398     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 399
 400     // re-layout the page after changing fonts:
 401     DoSetPage(*(m_Parser->GetSource()));
 402 }
 403
 404 void wxHtmlWindow::SetStandardFonts(int size,
 405                                     const wxString& normal_face,
 406                                     const wxString& fixed_face)
 407 {
 408     m_Parser->SetStandardFonts(size, normal_face, fixed_face);
 409
 410     // re-layout the page after changing fonts:
 411     DoSetPage(*(m_Parser->GetSource()));
 412 }
 413
 414 bool wxHtmlWindow::SetPage(const wxString& source)
 415 {
 416     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 417     return DoSetPage(source);
 418 }
 419
 420 bool wxHtmlWindow::DoSetPage(const wxString& source)
 421 {
 422     wxString newsrc(source);
 423
 424     wxDELETE(m_selection);
 425
 426     // we will soon delete all the cells, so clear pointers to them:
 427     m_tmpSelFromCell = NULL;
 428
 429     // pass HTML through registered processors:
 430     if (m_Processors || m_GlobalProcessors)
 431     {
 432         wxHtmlProcessorList::compatibility_iterator nodeL, nodeG;
 433         int prL, prG;
 434
 435         if ( m_Processors )
 436             nodeL = m_Processors->GetFirst();
 437         if ( m_GlobalProcessors )
 438             nodeG = m_GlobalProcessors->GetFirst();
 439
 440         // VS: there are two lists, global and local, both of them sorted by
 441         //     priority. Since we have to go through _both_ lists with
 442         //     decreasing priority, we "merge-sort" the lists on-line by
 443         //     processing that one of the two heads that has higher priority
 444         //     in every iteration
 445         while (nodeL || nodeG)
 446         {
 447             prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
 448             prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
 449             if (prL > prG)
 450             {
 451                 if (nodeL->GetData()->IsEnabled())
 452                     newsrc = nodeL->GetData()->Process(newsrc);
 453                 nodeL = nodeL->GetNext();
 454             }
 455             else // prL <= prG
 456             {
 457                 if (nodeG->GetData()->IsEnabled())
 458                     newsrc = nodeG->GetData()->Process(newsrc);
 459                 nodeG = nodeG->GetNext();
 460             }
 461         }
 462     }
 463
 464     // ...and run the parser on it:
 465     wxClientDC *dc = new wxClientDC(this);
 466     dc->SetMapMode(wxMM_TEXT);
 467     SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
 468     SetBackgroundImage(wxNullBitmap);
 469
 470     m_Parser->SetDC(dc);
 471     if (m_Cell)
 472     {
 473         delete m_Cell;
 474         // notice that it's important to set m_Cell to NULL here before calling
 475         // Parse() below, even if it will be overwritten by its return value:
 476         // without this we may crash if it's used from inside Parse()
 477         m_Cell = NULL;
 478     }
 479     m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
 480     delete dc;
 481     m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 482     m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
 483     CreateLayout();
 484     if (m_tmpCanDrawLocks == 0)
 485         Refresh();
 486     return true;
 487 }
 488
 489 bool wxHtmlWindow::AppendToPage(const wxString& source)
 490 {
 491     return DoSetPage(*(GetParser()->GetSource()) + source);
 492 }
 493
 494 bool wxHtmlWindow::LoadPage(const wxString& location)
 495 {
 496     wxCHECK_MSG( !location.empty(), false, "location must be non-empty" );
 497
 498     wxBusyCursor busyCursor;
 499
 500     bool rt_val;
 501     bool needs_refresh = false;
 502
 503     m_tmpCanDrawLocks++;
 504     if (m_HistoryOn && (m_HistoryPos != -1))
 505     {
 506         // store scroll position into history item:
 507         int x, y;
 508         GetViewStart(&x, &y);
 509         (*m_History)[m_HistoryPos].SetPos(y);
 510     }
 511
 512     // first check if we're moving to an anchor in the same page
 513     size_t posLocalAnchor = location.Find('#');
 514     if ( posLocalAnchor != wxString::npos && posLocalAnchor != 0 )
 515     {
 516         // check if the part before the anchor is the same as the (either
 517         // relative or absolute) URI of the current page
 518         const wxString beforeAnchor = location.substr(0, posLocalAnchor);
 519         if ( beforeAnchor != m_OpenedPage &&
 520                 m_FS->GetPath() + beforeAnchor != m_OpenedPage )
 521         {
 522             // indicate that we're not moving to a local anchor
 523             posLocalAnchor = wxString::npos;
 524         }
 525     }
 526
 527     if ( posLocalAnchor != wxString::npos )
 528     {
 529         m_tmpCanDrawLocks--;
 530         rt_val = ScrollToAnchor(location.substr(posLocalAnchor + 1));
 531         m_tmpCanDrawLocks++;
 532     }
 533     else // moving to another page
 534     {
 535         needs_refresh = true;
 536 #if wxUSE_STATUSBAR
 537         // load&display it:
 538         if (m_RelatedStatusBarIndex != -1)
 539         {
 540             SetHTMLStatusText(_("Connecting..."));
 541             Refresh(false);
 542         }
 543 #endif // wxUSE_STATUSBAR
 544
 545         wxFSFile *f = m_Parser->OpenURL(wxHTML_URL_PAGE, location);
 546
 547         // try to interpret 'location' as filename instead of URL:
 548         if (f == NULL)
 549         {
 550             wxFileName fn(location);
 551             wxString location2 = wxFileSystem::FileNameToURL(fn);
 552             f = m_Parser->OpenURL(wxHTML_URL_PAGE, location2);
 553         }
 554
 555         if (f == NULL)
 556         {
 557             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 558             m_tmpCanDrawLocks--;
 559             SetHTMLStatusText(wxEmptyString);
 560             return false;
 561         }
 562
 563         else
 564         {
 565             wxList::compatibility_iterator node;
 566             wxString src = wxEmptyString;
 567
 568 #if wxUSE_STATUSBAR
 569             if (m_RelatedStatusBarIndex != -1)
 570             {
 571                 wxString msg = _("Loading : ") + location;
 572                 SetHTMLStatusText(msg);
 573                 Refresh(false);
 574             }
 575 #endif // wxUSE_STATUSBAR
 576
 577             node = m_Filters.GetFirst();
 578             while (node)
 579             {
 580                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 581                 if (h->CanRead(*f))
 582                 {
 583                     src = h->ReadFile(*f);
 584                     break;
 585                 }
 586                 node = node->GetNext();
 587             }
 588             if (src == wxEmptyString)
 589             {
 590                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 591                 src = m_DefaultFilter->ReadFile(*f);
 592             }
 593
 594             m_FS->ChangePathTo(f->GetLocation());
 595             rt_val = SetPage(src);
 596             m_OpenedPage = f->GetLocation();
 597             if (f->GetAnchor() != wxEmptyString)
 598             {
 599                 ScrollToAnchor(f->GetAnchor());
 600             }
 601
 602             delete f;
 603
 604 #if wxUSE_STATUSBAR
 605             if (m_RelatedStatusBarIndex != -1)
 606             {
 607                 SetHTMLStatusText(_("Done"));
 608             }
 609 #endif // wxUSE_STATUSBAR
 610         }
 611     }
 612
 613     if (m_HistoryOn) // add this page to history there:
 614     {
 615         int c = m_History->GetCount() - (m_HistoryPos + 1);
 616
 617         if (m_HistoryPos < 0 ||
 618             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 619             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 620         {
 621             m_HistoryPos++;
 622             for (int i = 0; i < c; i++)
 623                 m_History->RemoveAt(m_HistoryPos);
 624             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 625         }
 626     }
 627
 628     if (m_OpenedPageTitle == wxEmptyString)
 629         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 630
 631     if (needs_refresh)
 632     {
 633         m_tmpCanDrawLocks--;
 634         Refresh();
 635     }
 636     else
 637         m_tmpCanDrawLocks--;
 638
 639     return rt_val;
 640 }
 641
 642
 643 bool wxHtmlWindow::LoadFile(const wxFileName& filename)
 644 {
 645     wxString url = wxFileSystem::FileNameToURL(filename);
 646     return LoadPage(url);
 647 }
 648
 649
 650 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 651 {
 652     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 653     if (!c)
 654     {
 655         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 656         return false;
 657     }
 658     else
 659     {
 660         int y;
 661
 662         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 663         Scroll(-1, y / wxHTML_SCROLL_STEP);
 664         m_OpenedAnchor = anchor;
 665         return true;
 666     }
 667 }
 668
 669
 670 void wxHtmlWindow::OnSetTitle(const wxString& title)
 671 {
 672     if (m_RelatedFrame)
 673     {
 674         wxString tit;
 675         tit.Printf(m_TitleFormat, title.c_str());
 676         m_RelatedFrame->SetTitle(tit);
 677     }
 678     m_OpenedPageTitle = title;
 679 }
 680
 681
 682
 683
 684
 685 void wxHtmlWindow::CreateLayout()
 686 {
 687     int ClientWidth, ClientHeight;
 688
 689     if (!m_Cell) return;
 690
 691     if ( HasFlag(wxHW_SCROLLBAR_NEVER) )
 692     {
 693         SetScrollbars(1, 1, 0, 0); // always off
 694         GetClientSize(&ClientWidth, &ClientHeight);
 695         m_Cell->Layout(ClientWidth);
 696     }
 697     else // !wxHW_SCROLLBAR_NEVER
 698     {
 699         GetClientSize(&ClientWidth, &ClientHeight);
 700         m_Cell->Layout(ClientWidth);
 701         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 702         {
 703             SetScrollbars(
 704                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 705                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 706                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 707                   /*cheat: top-level frag is always container*/);
 708         }
 709         else /* we fit into window, no need for scrollbars */
 710         {
 711             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 712             GetClientSize(&ClientWidth, &ClientHeight);
 713             m_Cell->Layout(ClientWidth); // ...and relayout
 714         }
 715     }
 716 }
 717
 718
 719
 720 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 721 {
 722     wxString oldpath;
 723     wxString tmp;
 724     int p_fontsizes[7];
 725     wxString p_fff, p_ffn;
 726
 727     if (path != wxEmptyString)
 728     {
 729         oldpath = cfg->GetPath();
 730         cfg->SetPath(path);
 731     }
 732
 733     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 734     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 735     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 736     for (int i = 0; i < 7; i++)
 737     {
 738         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 739         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 740     }
 741     SetFonts(p_ffn, p_fff, p_fontsizes);
 742
 743     if (path != wxEmptyString)
 744         cfg->SetPath(oldpath);
 745 }
 746
 747
 748
 749 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 750 {
 751     wxString oldpath;
 752     wxString tmp;
 753
 754     if (path != wxEmptyString)
 755     {
 756         oldpath = cfg->GetPath();
 757         cfg->SetPath(path);
 758     }
 759
 760     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 761     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 762     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 763     for (int i = 0; i < 7; i++)
 764     {
 765         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 766         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 767     }
 768
 769     if (path != wxEmptyString)
 770         cfg->SetPath(oldpath);
 771 }
 772
 773
 774
 775 bool wxHtmlWindow::HistoryBack()
 776 {
 777     wxString a, l;
 778
 779     if (m_HistoryPos < 1) return false;
 780
 781     // store scroll position into history item:
 782     int x, y;
 783     GetViewStart(&x, &y);
 784     (*m_History)[m_HistoryPos].SetPos(y);
 785
 786     // go to previous position:
 787     m_HistoryPos--;
 788
 789     l = (*m_History)[m_HistoryPos].GetPage();
 790     a = (*m_History)[m_HistoryPos].GetAnchor();
 791     m_HistoryOn = false;
 792     m_tmpCanDrawLocks++;
 793     if (a == wxEmptyString) LoadPage(l);
 794     else LoadPage(l + wxT("#") + a);
 795     m_HistoryOn = true;
 796     m_tmpCanDrawLocks--;
 797     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 798     Refresh();
 799     return true;
 800 }
 801
 802 bool wxHtmlWindow::HistoryCanBack()
 803 {
 804     if (m_HistoryPos < 1) return false;
 805     return true ;
 806 }
 807
 808
 809 bool wxHtmlWindow::HistoryForward()
 810 {
 811     wxString a, l;
 812
 813     if (m_HistoryPos == -1) return false;
 814     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 815
 816     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 817
 818     m_HistoryPos++;
 819     l = (*m_History)[m_HistoryPos].GetPage();
 820     a = (*m_History)[m_HistoryPos].GetAnchor();
 821     m_HistoryOn = false;
 822     m_tmpCanDrawLocks++;
 823     if (a == wxEmptyString) LoadPage(l);
 824     else LoadPage(l + wxT("#") + a);
 825     m_HistoryOn = true;
 826     m_tmpCanDrawLocks--;
 827     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 828     Refresh();
 829     return true;
 830 }
 831
 832 bool wxHtmlWindow::HistoryCanForward()
 833 {
 834     if (m_HistoryPos == -1) return false;
 835     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 836     return true ;
 837 }
 838
 839
 840 void wxHtmlWindow::HistoryClear()
 841 {
 842     m_History->Empty();
 843     m_HistoryPos = -1;
 844 }
 845
 846 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 847 {
 848     if (!m_Processors)
 849     {
 850         m_Processors = new wxHtmlProcessorList;
 851     }
 852     wxHtmlProcessorList::compatibility_iterator node;
 853
 854     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 855     {
 856         if (processor->GetPriority() > node->GetData()->GetPriority())
 857         {
 858             m_Processors->Insert(node, processor);
 859             return;
 860         }
 861     }
 862     m_Processors->Append(processor);
 863 }
 864
 865 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 866 {
 867     if (!m_GlobalProcessors)
 868     {
 869         m_GlobalProcessors = new wxHtmlProcessorList;
 870     }
 871     wxHtmlProcessorList::compatibility_iterator node;
 872
 873     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 874     {
 875         if (processor->GetPriority() > node->GetData()->GetPriority())
 876         {
 877             m_GlobalProcessors->Insert(node, processor);
 878             return;
 879         }
 880     }
 881     m_GlobalProcessors->Append(processor);
 882 }
 883
 884
 885
 886 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 887 {
 888     m_Filters.Append(filter);
 889 }
 890
 891
 892 bool wxHtmlWindow::IsSelectionEnabled() const
 893 {
 894 #if wxUSE_CLIPBOARD
 895     return !HasFlag(wxHW_NO_SELECTION);
 896 #else
 897     return false;
 898 #endif
 899 }
 900
 901
 902 #if wxUSE_CLIPBOARD
 903 wxString wxHtmlWindow::DoSelectionToText(wxHtmlSelection *sel)
 904 {
 905     if ( !sel )
 906         return wxEmptyString;
 907
 908     wxClientDC dc(this);
 909     wxString text;
 910
 911     wxHtmlTerminalCellsInterator i(sel->GetFromCell(), sel->GetToCell());
 912     const wxHtmlCell *prev = NULL;
 913
 914     while ( i )
 915     {
 916         // When converting HTML content to plain text, the entire paragraph
 917         // (container in wxHTML) goes on single line. A new paragraph (that
 918         // should go on its own line) has its own container. Therefore, the
 919         // simplest way of detecting where to insert newlines in plain text
 920         // is to check if the parent container changed -- if it did, we moved
 921         // to a new paragraph.
 922         if ( prev && prev->GetParent() != i->GetParent() )
 923             text << '\n';
 924
 925         // NB: we don't need to pass the selection to ConvertToText() in the
 926         //     middle of the selected text; it's only useful when only part of
 927         //     a cell is selected
 928         text << i->ConvertToText(sel);
 929
 930         prev = *i;
 931         ++i;
 932     }
 933     return text;
 934 }
 935
 936 wxString wxHtmlWindow::ToText()
 937 {
 938     if (m_Cell)
 939     {
 940         wxHtmlSelection sel;
 941         sel.Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
 942         return DoSelectionToText(&sel);
 943     }
 944     else
 945         return wxEmptyString;
 946 }
 947
 948 #endif // wxUSE_CLIPBOARD
 949
 950 bool wxHtmlWindow::CopySelection(ClipboardType t)
 951 {
 952 #if wxUSE_CLIPBOARD
 953     if ( m_selection )
 954     {
 955 #if defined(__UNIX__) && !defined(__WXMAC__)
 956         wxTheClipboard->UsePrimarySelection(t == Primary);
 957 #else // !__UNIX__
 958         // Primary selection exists only under X11, so don't do anything under
 959         // the other platforms when we try to access it
 960         //
 961         // TODO: this should be abstracted at wxClipboard level!
 962         if ( t == Primary )
 963             return false;
 964 #endif // __UNIX__/!__UNIX__
 965
 966         if ( wxTheClipboard->Open() )
 967         {
 968             const wxString txt(SelectionToText());
 969             wxTheClipboard->SetData(new wxTextDataObject(txt));
 970             wxTheClipboard->Close();
 971             wxLogTrace(wxT("wxhtmlselection"),
 972                        _("Copied to clipboard:\"%s\""), txt.c_str());
 973
 974             return true;
 975         }
 976     }
 977 #else
 978     wxUnusedVar(t);
 979 #endif // wxUSE_CLIPBOARD
 980
 981     return false;
 982 }
 983
 984
 985 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 986 {
 987     wxHtmlLinkEvent event(GetId(), link);
 988     event.SetEventObject(this);
 989     if (!GetEventHandler()->ProcessEvent(event))
 990     {
 991         // the default behaviour is to load the URL in this window
 992         const wxMouseEvent *e = event.GetLinkInfo().GetEvent();
 993         if (e == NULL || e->LeftUp())
 994             LoadPage(event.GetLinkInfo().GetHref());
 995     }
 996 }
 997
 998 void wxHtmlWindow::DoEraseBackground(wxDC& dc)
 999 {
1000     // if we don't have any background bitmap we just fill it with background
1001     // colour and we also must do it if the background bitmap is not fully
1002     // opaque as otherwise junk could be left there
1003     if ( !m_bmpBg.IsOk() || m_bmpBg.GetMask() )
1004     {
1005         dc.SetBackground(GetBackgroundColour());
1006         dc.Clear();
1007     }
1008
1009     if ( m_bmpBg.IsOk() )
1010     {
1011         // draw the background bitmap tiling it over the entire window area
1012         const wxSize sz = GetClientSize();
1013         const wxSize sizeBmp(m_bmpBg.GetWidth(), m_bmpBg.GetHeight());
1014         for ( wxCoord x = 0; x < sz.x; x += sizeBmp.x )
1015         {
1016             for ( wxCoord y = 0; y < sz.y; y += sizeBmp.y )
1017             {
1018                 dc.DrawBitmap(m_bmpBg, x, y, true /* use mask */);
1019             }
1020         }
1021     }
1022 }
1023
1024 void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
1025 {
1026     wxPaintDC dcPaint(this);
1027
1028     if (m_tmpCanDrawLocks > 0 || m_Cell == NULL)
1029         return;
1030
1031     int x, y;
1032     GetViewStart(&x, &y);
1033     const wxRect rect = GetUpdateRegion().GetBox();
1034     const wxSize sz = GetClientSize();
1035
1036     // set up the DC we're drawing on: if the window is already double buffered
1037     // we do it directly on wxPaintDC, otherwise we allocate a backing store
1038     // buffer and compose the drawing there and then blit it to screen all at
1039     // once
1040     wxDC *dc;
1041     wxMemoryDC dcm;
1042     if ( IsDoubleBuffered() )
1043     {
1044         dc = &dcPaint;
1045     }
1046     else // window is not double buffered by the system, do it ourselves
1047     {
1048         if ( !m_backBuffer.IsOk() )
1049             m_backBuffer.Create(sz.x, sz.y);
1050         dcm.SelectObject(m_backBuffer);
1051         dc = &dcm;
1052     }
1053
1054     PrepareDC(*dc);
1055
1056     // erase the background: for compatibility, we must generate the event to
1057     // allow the user-defined handlers to do it
1058     wxEraseEvent eraseEvent(GetId(), dc);
1059     eraseEvent.SetEventObject(this);
1060     if ( !ProcessWindowEvent(eraseEvent) )
1061     {
1062         // erase background ourselves
1063         DoEraseBackground(*dc);
1064     }
1065     //else: background erased by the user-defined handler
1066
1067
1068     // draw the HTML window contents
1069     dc->SetMapMode(wxMM_TEXT);
1070     dc->SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
1071
1072     wxHtmlRenderingInfo rinfo;
1073     wxDefaultHtmlRenderingStyle rstyle;
1074     rinfo.SetSelection(m_selection);
1075     rinfo.SetStyle(&rstyle);
1076     m_Cell->Draw(*dc, 0, 0,
1077                  y * wxHTML_SCROLL_STEP + rect.GetTop(),
1078                  y * wxHTML_SCROLL_STEP + rect.GetBottom(),
1079                  rinfo);
1080
1081 #ifdef DEBUG_HTML_SELECTION
1082     {
1083     int xc, yc, x, y;
1084     wxGetMousePosition(&xc, &yc);
1085     ScreenToClient(&xc, &yc);
1086     CalcUnscrolledPosition(xc, yc, &x, &y);
1087     wxHtmlCell *at = m_Cell->FindCellByPos(x, y);
1088     wxHtmlCell *before =
1089         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_BEFORE);
1090     wxHtmlCell *after =
1091         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_AFTER);
1092
1093     dc->SetBrush(*wxTRANSPARENT_BRUSH);
1094     dc->SetPen(*wxBLACK_PEN);
1095     if (at)
1096         dc->DrawRectangle(at->GetAbsPos(),
1097                           wxSize(at->GetWidth(),at->GetHeight()));
1098     dc->SetPen(*wxGREEN_PEN);
1099     if (before)
1100         dc->DrawRectangle(before->GetAbsPos().x+1, before->GetAbsPos().y+1,
1101                           before->GetWidth()-2,before->GetHeight()-2);
1102     dc->SetPen(*wxRED_PEN);
1103     if (after)
1104         dc->DrawRectangle(after->GetAbsPos().x+2, after->GetAbsPos().y+2,
1105                           after->GetWidth()-4,after->GetHeight()-4);
1106     }
1107 #endif // DEBUG_HTML_SELECTION
1108
1109     if ( dc != &dcPaint )
1110     {
1111         dc->SetDeviceOrigin(0,0);
1112         dcPaint.Blit(0, rect.GetTop(),
1113                      sz.x, rect.GetBottom() - rect.GetTop() + 1,
1114                      dc,
1115                      0, rect.GetTop());
1116     }
1117 }
1118
1119
1120
1121
1122 void wxHtmlWindow::OnSize(wxSizeEvent& event)
1123 {
1124     event.Skip();
1125
1126     m_backBuffer = wxNullBitmap;
1127
1128     CreateLayout();
1129
1130     // Recompute selection if necessary:
1131     if ( m_selection )
1132     {
1133         m_selection->Set(m_selection->GetFromCell(),
1134                          m_selection->GetToCell());
1135         m_selection->ClearPrivPos();
1136     }
1137
1138     Refresh();
1139 }
1140
1141
1142 void wxHtmlWindow::OnMouseMove(wxMouseEvent& WXUNUSED(event))
1143 {
1144     wxHtmlWindowMouseHelper::HandleMouseMoved();
1145 }
1146
1147 void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
1148 {
1149 #if wxUSE_CLIPBOARD
1150     if ( event.LeftDown() && IsSelectionEnabled() )
1151     {
1152         const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
1153         if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
1154         {
1155             SelectLine(CalcUnscrolledPosition(event.GetPosition()));
1156
1157             (void) CopySelection();
1158         }
1159         else
1160         {
1161             m_makingSelection = true;
1162
1163             if ( m_selection )
1164             {
1165                 wxDELETE(m_selection);
1166                 Refresh();
1167             }
1168             m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
1169             m_tmpSelFromCell = NULL;
1170
1171             CaptureMouse();
1172         }
1173     }
1174 #endif // wxUSE_CLIPBOARD
1175
1176     // in any case, let the default handler set focus to this window
1177     event.Skip();
1178 }
1179
1180 void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
1181 {
1182 #if wxUSE_CLIPBOARD
1183     if ( m_makingSelection )
1184     {
1185         ReleaseMouse();
1186         m_makingSelection = false;
1187
1188         // if m_selection=NULL, the user didn't move the mouse far enough from
1189         // starting point and the mouse up event is part of a click, the user
1190         // is not selecting text:
1191         if ( m_selection )
1192         {
1193             CopySelection(Primary);
1194
1195             // we don't want mouse up event that ended selecting to be
1196             // handled as mouse click and e.g. follow hyperlink:
1197             return;
1198         }
1199     }
1200 #endif // wxUSE_CLIPBOARD
1201
1202     wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
1203     wxHtmlWindowMouseHelper::HandleMouseClick(m_Cell, pos, event);
1204 }
1205
1206 #if wxUSE_CLIPBOARD
1207 void wxHtmlWindow::OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
1208 {
1209     if ( !m_makingSelection )
1210         return;
1211
1212     // discard the selecting operation
1213     m_makingSelection = false;
1214     wxDELETE(m_selection);
1215     m_tmpSelFromCell = NULL;
1216     Refresh();
1217 }
1218 #endif // wxUSE_CLIPBOARD
1219
1220
1221 void wxHtmlWindow::OnInternalIdle()
1222 {
1223     wxWindow::OnInternalIdle();
1224
1225     if (m_Cell != NULL && DidMouseMove())
1226     {
1227 #ifdef DEBUG_HTML_SELECTION
1228         Refresh();
1229 #endif
1230         int xc, yc, x, y;
1231         wxGetMousePosition(&xc, &yc);
1232         ScreenToClient(&xc, &yc);
1233         CalcUnscrolledPosition(xc, yc, &x, &y);
1234
1235         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
1236
1237         // handle selection update:
1238         if ( m_makingSelection )
1239         {
1240             if ( !m_tmpSelFromCell )
1241                 m_tmpSelFromCell = m_Cell->FindCellByPos(
1242                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y);
1243
1244             // NB: a trick - we adjust selFromPos to be upper left or bottom
1245             //     right corner of the first cell of the selection depending
1246             //     on whether the mouse is moving to the right or to the left.
1247             //     This gives us more "natural" behaviour when selecting
1248             //     a line (specifically, first cell of the next line is not
1249             //     included if you drag selection from left to right over
1250             //     entire line):
1251             wxPoint dirFromPos;
1252             if ( !m_tmpSelFromCell )
1253             {
1254                 dirFromPos = m_tmpSelFromPos;
1255             }
1256             else
1257             {
1258                 dirFromPos = m_tmpSelFromCell->GetAbsPos();
1259                 if ( x < m_tmpSelFromPos.x )
1260                 {
1261                     dirFromPos.x += m_tmpSelFromCell->GetWidth();
1262                     dirFromPos.y += m_tmpSelFromCell->GetHeight();
1263                 }
1264             }
1265             bool goingDown = dirFromPos.y < y ||
1266                              (dirFromPos.y == y && dirFromPos.x < x);
1267
1268             // determine selection span:
1269             if ( /*still*/ !m_tmpSelFromCell )
1270             {
1271                 if (goingDown)
1272                 {
1273                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1274                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1275                                          wxHTML_FIND_NEAREST_AFTER);
1276                     if (!m_tmpSelFromCell)
1277                         m_tmpSelFromCell = m_Cell->GetFirstTerminal();
1278                 }
1279                 else
1280                 {
1281                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1282                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1283                                          wxHTML_FIND_NEAREST_BEFORE);
1284                     if (!m_tmpSelFromCell)
1285                         m_tmpSelFromCell = m_Cell->GetLastTerminal();
1286                 }
1287             }
1288
1289             wxHtmlCell *selcell = cell;
1290             if (!selcell)
1291             {
1292                 if (goingDown)
1293                 {
1294                     selcell = m_Cell->FindCellByPos(x, y,
1295                                                  wxHTML_FIND_NEAREST_BEFORE);
1296                     if (!selcell)
1297                         selcell = m_Cell->GetLastTerminal();
1298                 }
1299                 else
1300                 {
1301                     selcell = m_Cell->FindCellByPos(x, y,
1302                                                  wxHTML_FIND_NEAREST_AFTER);
1303                     if (!selcell)
1304                         selcell = m_Cell->GetFirstTerminal();
1305                 }
1306             }
1307
1308             // NB: it may *rarely* happen that the code above didn't find one
1309             //     of the cells, e.g. if wxHtmlWindow doesn't contain any
1310             //     visible cells.
1311             if ( selcell && m_tmpSelFromCell )
1312             {
1313                 if ( !m_selection )
1314                 {
1315                     // start selecting only if mouse movement was big enough
1316                     // (otherwise it was meant as mouse click, not selection):
1317                     const int PRECISION = 2;
1318                     wxPoint diff = m_tmpSelFromPos - wxPoint(x,y);
1319                     if (abs(diff.x) > PRECISION || abs(diff.y) > PRECISION)
1320                     {
1321                         m_selection = new wxHtmlSelection();
1322                     }
1323                 }
1324                 if ( m_selection )
1325                 {
1326                     if ( m_tmpSelFromCell->IsBefore(selcell) )
1327                     {
1328                         m_selection->Set(m_tmpSelFromPos, m_tmpSelFromCell,
1329                                          wxPoint(x,y), selcell);
1330                     }
1331                     else
1332                     {
1333                         m_selection->Set(wxPoint(x,y), selcell,
1334                                          m_tmpSelFromPos, m_tmpSelFromCell);
1335                     }
1336                     m_selection->ClearPrivPos();
1337                     Refresh();
1338                 }
1339             }
1340         }
1341
1342         // handle cursor and status bar text changes:
1343
1344         // NB: because we're passing in 'cell' and not 'm_Cell' (so that the
1345         //     leaf cell lookup isn't done twice), we need to adjust the
1346         //     position for the new root:
1347         wxPoint posInCell(x, y);
1348         if (cell)
1349             posInCell -= cell->GetAbsPos();
1350         wxHtmlWindowMouseHelper::HandleIdle(cell, posInCell);
1351     }
1352 }
1353
1354 #if wxUSE_CLIPBOARD
1355 void wxHtmlWindow::StopAutoScrolling()
1356 {
1357     if ( m_timerAutoScroll )
1358     {
1359         wxDELETE(m_timerAutoScroll);
1360     }
1361 }
1362
1363 void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event)
1364 {
1365     StopAutoScrolling();
1366     event.Skip();
1367 }
1368
1369 void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
1370 {
1371     // don't prevent the usual processing of the event from taking place
1372     event.Skip();
1373
1374     // when a captured mouse leave a scrolled window we start generate
1375     // scrolling events to allow, for example, extending selection beyond the
1376     // visible area in some controls
1377     if ( wxWindow::GetCapture() == this )
1378     {
1379         // where is the mouse leaving?
1380         int pos, orient;
1381         wxPoint pt = event.GetPosition();
1382         if ( pt.x < 0 )
1383         {
1384             orient = wxHORIZONTAL;
1385             pos = 0;
1386         }
1387         else if ( pt.y < 0 )
1388         {
1389             orient = wxVERTICAL;
1390             pos = 0;
1391         }
1392         else // we're lower or to the right of the window
1393         {
1394             wxSize size = GetClientSize();
1395             if ( pt.x > size.x )
1396             {
1397                 orient = wxHORIZONTAL;
1398                 pos = GetVirtualSize().x / wxHTML_SCROLL_STEP;
1399             }
1400             else if ( pt.y > size.y )
1401             {
1402                 orient = wxVERTICAL;
1403                 pos = GetVirtualSize().y / wxHTML_SCROLL_STEP;
1404             }
1405             else // this should be impossible
1406             {
1407                 // but seems to happen sometimes under wxMSW - maybe it's a bug
1408                 // there but for now just ignore it
1409
1410                 //wxFAIL_MSG( wxT("can't understand where has mouse gone") );
1411
1412                 return;
1413             }
1414         }
1415
1416         // only start the auto scroll timer if the window can be scrolled in
1417         // this direction
1418         if ( !HasScrollbar(orient) )
1419             return;
1420
1421         delete m_timerAutoScroll;
1422         m_timerAutoScroll = new wxHtmlWinAutoScrollTimer
1423                                 (
1424                                     this,
1425                                     pos == 0 ? wxEVT_SCROLLWIN_LINEUP
1426                                              : wxEVT_SCROLLWIN_LINEDOWN,
1427                                     pos,
1428                                     orient
1429                                 );
1430         m_timerAutoScroll->Start(50); // FIXME: make configurable
1431     }
1432 }
1433
1434 void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
1435 {
1436     if ( IsSelectionEnabled() &&
1437             (event.GetKeyCode() == 'C' && event.CmdDown()) )
1438     {
1439         wxClipboardTextEvent evt(wxEVT_COMMAND_TEXT_COPY, GetId());
1440
1441         evt.SetEventObject(this);
1442
1443         GetEventHandler()->ProcessEvent(evt);
1444     }
1445 }
1446
1447 void wxHtmlWindow::OnCopy(wxCommandEvent& WXUNUSED(event))
1448 {
1449     (void) CopySelection();
1450 }
1451
1452 void wxHtmlWindow::OnClipboardEvent(wxClipboardTextEvent& WXUNUSED(event))
1453 {
1454     (void) CopySelection();
1455 }
1456
1457 void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event)
1458 {
1459     // select word under cursor:
1460     if ( IsSelectionEnabled() )
1461     {
1462         SelectWord(CalcUnscrolledPosition(event.GetPosition()));
1463
1464         (void) CopySelection(Primary);
1465
1466         m_lastDoubleClick = wxGetLocalTimeMillis();
1467     }
1468     else
1469         event.Skip();
1470 }
1471
1472 void wxHtmlWindow::SelectWord(const wxPoint& pos)
1473 {
1474     if ( m_Cell )
1475     {
1476         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1477         if ( cell )
1478         {
1479             delete m_selection;
1480             m_selection = new wxHtmlSelection();
1481             m_selection->Set(cell, cell);
1482             RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
1483                                wxSize(cell->GetWidth(), cell->GetHeight())));
1484         }
1485     }
1486 }
1487
1488 void wxHtmlWindow::SelectLine(const wxPoint& pos)
1489 {
1490     if ( m_Cell )
1491     {
1492         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1493         if ( cell )
1494         {
1495             // We use following heuristic to find a "line": let the line be all
1496             // cells in same container as the cell under mouse cursor that are
1497             // neither completely above nor completely bellow the clicked cell
1498             // (i.e. are likely to be words positioned on same line of text).
1499
1500             int y1 = cell->GetAbsPos().y;
1501             int y2 = y1 + cell->GetHeight();
1502             int y;
1503             const wxHtmlCell *c;
1504             const wxHtmlCell *before = NULL;
1505             const wxHtmlCell *after = NULL;
1506
1507             // find last cell of line:
1508             for ( c = cell->GetNext(); c; c = c->GetNext())
1509             {
1510                 y = c->GetAbsPos().y;
1511                 if ( y + c->GetHeight() > y1 && y < y2 )
1512                     after = c;
1513                 else
1514                     break;
1515             }
1516             if ( !after )
1517                 after = cell;
1518
1519             // find first cell of line:
1520             for ( c = cell->GetParent()->GetFirstChild();
1521                     c && c != cell; c = c->GetNext())
1522             {
1523                 y = c->GetAbsPos().y;
1524                 if ( y + c->GetHeight() > y1 && y < y2 )
1525                 {
1526                     if ( ! before )
1527                         before = c;
1528                 }
1529                 else
1530                     before = NULL;
1531             }
1532             if ( !before )
1533                 before = cell;
1534
1535             delete m_selection;
1536             m_selection = new wxHtmlSelection();
1537             m_selection->Set(before, after);
1538
1539             Refresh();
1540         }
1541     }
1542 }
1543
1544 void wxHtmlWindow::SelectAll()
1545 {
1546     if ( m_Cell )
1547     {
1548         delete m_selection;
1549         m_selection = new wxHtmlSelection();
1550         m_selection->Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
1551         Refresh();
1552     }
1553 }
1554
1555 #endif // wxUSE_CLIPBOARD
1556
1557
1558
1559 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
1560
1561 #if wxUSE_EXTENDED_RTTI
1562 IMPLEMENT_DYNAMIC_CLASS_XTI(wxHtmlWindow, wxScrolledWindow,"wx/html/htmlwin.h")
1563
1564 wxBEGIN_PROPERTIES_TABLE(wxHtmlWindow)
1565 /*
1566     TODO PROPERTIES
1567         style , wxHW_SCROLLBAR_AUTO
1568         borders , (dimension)
1569         url , string
1570         htmlcode , string
1571 */
1572 wxEND_PROPERTIES_TABLE()
1573
1574 wxBEGIN_HANDLERS_TABLE(wxHtmlWindow)
1575 wxEND_HANDLERS_TABLE()
1576
1577 wxCONSTRUCTOR_5( wxHtmlWindow , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
1578 #else
1579 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
1580 #endif
1581
1582 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
1583     EVT_SIZE(wxHtmlWindow::OnSize)
1584     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseDown)
1585     EVT_LEFT_UP(wxHtmlWindow::OnMouseUp)
1586     EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp)
1587     EVT_MOTION(wxHtmlWindow::OnMouseMove)
1588     EVT_PAINT(wxHtmlWindow::OnPaint)
1589 #if wxUSE_CLIPBOARD
1590     EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick)
1591     EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter)
1592     EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave)
1593     EVT_MOUSE_CAPTURE_LOST(wxHtmlWindow::OnMouseCaptureLost)
1594     EVT_KEY_UP(wxHtmlWindow::OnKeyUp)
1595     EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy)
1596     EVT_TEXT_COPY(wxID_ANY, wxHtmlWindow::OnClipboardEvent)
1597 #endif // wxUSE_CLIPBOARD
1598 END_EVENT_TABLE()
1599
1600 //-----------------------------------------------------------------------------
1601 // wxHtmlWindowInterface implementation in wxHtmlWindow
1602 //-----------------------------------------------------------------------------
1603
1604 void wxHtmlWindow::SetHTMLWindowTitle(const wxString& title)
1605 {
1606     OnSetTitle(title);
1607 }
1608
1609 void wxHtmlWindow::OnHTMLLinkClicked(const wxHtmlLinkInfo& link)
1610 {
1611     OnLinkClicked(link);
1612 }
1613
1614 wxHtmlOpeningStatus wxHtmlWindow::OnHTMLOpeningURL(wxHtmlURLType type,
1615                                                    const wxString& url,
1616                                                    wxString *redirect) const
1617 {
1618     return OnOpeningURL(type, url, redirect);
1619 }
1620
1621 wxPoint wxHtmlWindow::HTMLCoordsToWindow(wxHtmlCell *WXUNUSED(cell),
1622                                          const wxPoint& pos) const
1623 {
1624     return CalcScrolledPosition(pos);
1625 }
1626
1627 wxWindow* wxHtmlWindow::GetHTMLWindow()
1628 {
1629     return this;
1630 }
1631
1632 wxColour wxHtmlWindow::GetHTMLBackgroundColour() const
1633 {
1634     return GetBackgroundColour();
1635 }
1636
1637 void wxHtmlWindow::SetHTMLBackgroundColour(const wxColour& clr)
1638 {
1639     SetBackgroundColour(clr);
1640 }
1641
1642 void wxHtmlWindow::SetHTMLBackgroundImage(const wxBitmap& bmpBg)
1643 {
1644     SetBackgroundImage(bmpBg);
1645 }
1646
1647 void wxHtmlWindow::SetHTMLStatusText(const wxString& text)
1648 {
1649 #if wxUSE_STATUSBAR
1650     if (m_RelatedStatusBarIndex != -1)
1651     {
1652         if (m_RelatedStatusBar)
1653         {
1654             m_RelatedStatusBar->SetStatusText(text, m_RelatedStatusBarIndex);
1655         }
1656         else if (m_RelatedFrame)
1657         {
1658             m_RelatedFrame->SetStatusText(text, m_RelatedStatusBarIndex);
1659         }
1660     }
1661 #else
1662     wxUnusedVar(text);
1663 #endif // wxUSE_STATUSBAR
1664 }
1665
1666 /*static*/
1667 wxCursor wxHtmlWindow::GetDefaultHTMLCursor(HTMLCursor type)
1668 {
1669     switch (type)
1670     {
1671         case HTMLCursor_Link:
1672             if ( !ms_cursorLink )
1673                 ms_cursorLink = new wxCursor(wxCURSOR_HAND);
1674             return *ms_cursorLink;
1675
1676         case HTMLCursor_Text:
1677             if ( !ms_cursorText )
1678                 ms_cursorText = new wxCursor(wxCURSOR_IBEAM);
1679             return *ms_cursorText;
1680
1681         case HTMLCursor_Default:
1682         default:
1683             return *wxSTANDARD_CURSOR;
1684     }
1685 }
1686
1687 wxCursor wxHtmlWindow::GetHTMLCursor(HTMLCursor type) const
1688 {
1689     return GetDefaultHTMLCursor(type);
1690 }
1691
1692
1693 //-----------------------------------------------------------------------------
1694 // wxHtmlWinModule
1695 //-----------------------------------------------------------------------------
1696
1697 // A module to allow initialization/cleanup
1698 // without calling these functions from app.cpp or from
1699 // the user's application.
1700
1701 class wxHtmlWinModule: public wxModule
1702 {
1703 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
1704 public:
1705     wxHtmlWinModule() : wxModule() {}
1706     bool OnInit() { return true; }
1707     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
1708 };
1709
1710 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
1711
1712
1713 // This hack forces the linker to always link in m_* files
1714 // (wxHTML doesn't work without handlers from these files)
1715 #include "wx/html/forcelnk.h"
1716 FORCE_WXHTML_MODULES()
1717
1718 #endif // wxUSE_HTML