src/html/htmlwin.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/html/htmlwin.cpp
   3 // Purpose:     wxHtmlWindow class for parsing & displaying HTML (implementation)
   4 // Author:      Vaclav Slavik
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1999 Vaclav Slavik
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #include "wx/wxprec.h"
  11
  12 #ifdef __BORLANDC__
  13     #pragma hdrstop
  14 #endif
  15
  16 #if wxUSE_HTML && wxUSE_STREAMS
  17
  18 #ifndef WXPRECOMP
  19     #include "wx/list.h"
  20     #include "wx/log.h"
  21     #include "wx/intl.h"
  22     #include "wx/dcclient.h"
  23     #include "wx/frame.h"
  24     #include "wx/dcmemory.h"
  25     #include "wx/timer.h"
  26     #include "wx/settings.h"
  27     #include "wx/dataobj.h"
  28 #endif
  29
  30 #include "wx/html/htmlwin.h"
  31 #include "wx/html/htmlproc.h"
  32 #include "wx/clipbrd.h"
  33
  34 #include "wx/arrimpl.cpp"
  35 #include "wx/listimpl.cpp"
  36
  37 // HTML events:
  38 IMPLEMENT_DYNAMIC_CLASS(wxHtmlLinkEvent, wxCommandEvent)
  39 IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellEvent, wxCommandEvent)
  40
  41 DEFINE_EVENT_TYPE(wxEVT_COMMAND_HTML_CELL_CLICKED)
  42 DEFINE_EVENT_TYPE(wxEVT_COMMAND_HTML_CELL_HOVER)
  43 DEFINE_EVENT_TYPE(wxEVT_COMMAND_HTML_LINK_CLICKED)
  44
  45
  46 #if wxUSE_CLIPBOARD
  47 // ----------------------------------------------------------------------------
  48 // wxHtmlWinAutoScrollTimer: the timer used to generate a stream of scroll
  49 // events when a captured mouse is held outside the window
  50 // ----------------------------------------------------------------------------
  51
  52 class wxHtmlWinAutoScrollTimer : public wxTimer
  53 {
  54 public:
  55     wxHtmlWinAutoScrollTimer(wxScrolledWindow *win,
  56                       wxEventType eventTypeToSend,
  57                       int pos, int orient)
  58     {
  59         m_win = win;
  60         m_eventType = eventTypeToSend;
  61         m_pos = pos;
  62         m_orient = orient;
  63     }
  64
  65     virtual void Notify();
  66
  67 private:
  68     wxScrolledWindow *m_win;
  69     wxEventType m_eventType;
  70     int m_pos,
  71         m_orient;
  72
  73     DECLARE_NO_COPY_CLASS(wxHtmlWinAutoScrollTimer)
  74 };
  75
  76 void wxHtmlWinAutoScrollTimer::Notify()
  77 {
  78     // only do all this as long as the window is capturing the mouse
  79     if ( wxWindow::GetCapture() != m_win )
  80     {
  81         Stop();
  82     }
  83     else // we still capture the mouse, continue generating events
  84     {
  85         // first scroll the window if we are allowed to do it
  86         wxScrollWinEvent event1(m_eventType, m_pos, m_orient);
  87         event1.SetEventObject(m_win);
  88         if ( m_win->GetEventHandler()->ProcessEvent(event1) )
  89         {
  90             // and then send a pseudo mouse-move event to refresh the selection
  91             wxMouseEvent event2(wxEVT_MOTION);
  92             wxGetMousePosition(&event2.m_x, &event2.m_y);
  93
  94             // the mouse event coordinates should be client, not screen as
  95             // returned by wxGetMousePosition
  96             wxWindow *parentTop = m_win;
  97             while ( parentTop->GetParent() )
  98                 parentTop = parentTop->GetParent();
  99             wxPoint ptOrig = parentTop->GetPosition();
 100             event2.m_x -= ptOrig.x;
 101             event2.m_y -= ptOrig.y;
 102
 103             event2.SetEventObject(m_win);
 104
 105             // FIXME: we don't fill in the other members - ok?
 106             m_win->GetEventHandler()->ProcessEvent(event2);
 107         }
 108         else // can't scroll further, stop
 109         {
 110             Stop();
 111         }
 112     }
 113 }
 114
 115 #endif // wxUSE_CLIPBOARD
 116
 117
 118
 119 //-----------------------------------------------------------------------------
 120 // wxHtmlHistoryItem
 121 //-----------------------------------------------------------------------------
 122
 123 // item of history list
 124 class WXDLLIMPEXP_HTML wxHtmlHistoryItem
 125 {
 126 public:
 127     wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
 128     int GetPos() const {return m_Pos;}
 129     void SetPos(int p) {m_Pos = p;}
 130     const wxString& GetPage() const {return m_Page;}
 131     const wxString& GetAnchor() const {return m_Anchor;}
 132
 133 private:
 134     wxString m_Page;
 135     wxString m_Anchor;
 136     int m_Pos;
 137 };
 138
 139
 140 //-----------------------------------------------------------------------------
 141 // our private arrays:
 142 //-----------------------------------------------------------------------------
 143
 144 WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
 145 WX_DEFINE_OBJARRAY(wxHtmlHistoryArray)
 146
 147 WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
 148 WX_DEFINE_LIST(wxHtmlProcessorList)
 149
 150 //-----------------------------------------------------------------------------
 151 // wxHtmlWindowMouseHelper
 152 //-----------------------------------------------------------------------------
 153
 154 wxHtmlWindowMouseHelper::wxHtmlWindowMouseHelper(wxHtmlWindowInterface *iface)
 155     : m_tmpMouseMoved(false),
 156       m_tmpLastLink(NULL),
 157       m_tmpLastCell(NULL),
 158       m_interface(iface)
 159 {
 160 }
 161
 162 void wxHtmlWindowMouseHelper::HandleMouseMoved()
 163 {
 164     m_tmpMouseMoved = true;
 165 }
 166
 167 bool wxHtmlWindowMouseHelper::HandleMouseClick(wxHtmlCell *rootCell,
 168                                                const wxPoint& pos,
 169                                                const wxMouseEvent& event)
 170 {
 171     if (!rootCell)
 172         return false;
 173
 174     wxHtmlCell *cell = rootCell->FindCellByPos(pos.x, pos.y);
 175     // this check is needed because FindCellByPos returns terminal cell and
 176     // containers may have empty borders -- in this case NULL will be
 177     // returned
 178     if (!cell)
 179         return false;
 180
 181     // adjust the coordinates to be relative to this cell:
 182     wxPoint relpos = pos - cell->GetAbsPos(rootCell);
 183
 184     return OnCellClicked(cell, relpos.x, relpos.y, event);
 185 }
 186
 187 void wxHtmlWindowMouseHelper::HandleIdle(wxHtmlCell *rootCell,
 188                                          const wxPoint& pos)
 189 {
 190     wxHtmlCell *cell = rootCell ? rootCell->FindCellByPos(pos.x, pos.y) : NULL;
 191
 192     if (cell != m_tmpLastCell)
 193     {
 194         wxHtmlLinkInfo *lnk = NULL;
 195         if (cell)
 196         {
 197             // adjust the coordinates to be relative to this cell:
 198             wxPoint relpos = pos - cell->GetAbsPos(rootCell);
 199             lnk = cell->GetLink(relpos.x, relpos.y);
 200         }
 201
 202         wxCursor cur;
 203         if (cell)
 204             cur = cell->GetMouseCursor(m_interface);
 205         else
 206             cur = m_interface->GetHTMLCursor(
 207                         wxHtmlWindowInterface::HTMLCursor_Default);
 208
 209         m_interface->GetHTMLWindow()->SetCursor(cur);
 210
 211         if (lnk != m_tmpLastLink)
 212         {
 213             if (lnk)
 214                 m_interface->SetHTMLStatusText(lnk->GetHref());
 215             else
 216                 m_interface->SetHTMLStatusText(wxEmptyString);
 217
 218             m_tmpLastLink = lnk;
 219         }
 220
 221         m_tmpLastCell = cell;
 222     }
 223     else // mouse moved but stayed in the same cell
 224     {
 225         if ( cell )
 226         {
 227             OnCellMouseHover(cell, pos.x, pos.y);
 228         }
 229     }
 230
 231     m_tmpMouseMoved = false;
 232 }
 233
 234 bool wxHtmlWindowMouseHelper::OnCellClicked(wxHtmlCell *cell,
 235                                             wxCoord x, wxCoord y,
 236                                             const wxMouseEvent& event)
 237 {
 238     wxHtmlCellEvent ev(wxEVT_COMMAND_HTML_CELL_CLICKED,
 239                        m_interface->GetHTMLWindow()->GetId(),
 240                        cell, wxPoint(x,y), event);
 241
 242     if (!m_interface->GetHTMLWindow()->GetEventHandler()->ProcessEvent(ev))
 243     {
 244         // if the event wasn't handled, do the default processing here:
 245
 246         wxASSERT_MSG( cell, _T("can't be called with NULL cell") );
 247
 248         cell->ProcessMouseClick(m_interface, ev.GetPoint(), ev.GetMouseEvent());
 249     }
 250
 251     // true if a link was clicked, false otherwise
 252     return ev.GetLinkClicked();
 253 }
 254
 255 void wxHtmlWindowMouseHelper::OnCellMouseHover(wxHtmlCell * cell,
 256                                                wxCoord x,
 257                                                wxCoord y)
 258 {
 259     wxHtmlCellEvent ev(wxEVT_COMMAND_HTML_CELL_HOVER,
 260                        m_interface->GetHTMLWindow()->GetId(),
 261                        cell, wxPoint(x,y), wxMouseEvent());
 262     m_interface->GetHTMLWindow()->GetEventHandler()->ProcessEvent(ev);
 263 }
 264
 265
 266
 267
 268 //-----------------------------------------------------------------------------
 269 // wxHtmlWindow
 270 //-----------------------------------------------------------------------------
 271
 272 wxList wxHtmlWindow::m_Filters;
 273 wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
 274 wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
 275 wxCursor *wxHtmlWindow::ms_cursorLink = NULL;
 276 wxCursor *wxHtmlWindow::ms_cursorText = NULL;
 277
 278 void wxHtmlWindow::CleanUpStatics()
 279 {
 280     wxDELETE(m_DefaultFilter);
 281     WX_CLEAR_LIST(wxList, m_Filters);
 282     if (m_GlobalProcessors)
 283         WX_CLEAR_LIST(wxHtmlProcessorList, *m_GlobalProcessors);
 284     wxDELETE(m_GlobalProcessors);
 285     wxDELETE(ms_cursorLink);
 286     wxDELETE(ms_cursorText);
 287 }
 288
 289 void wxHtmlWindow::Init()
 290 {
 291     m_tmpCanDrawLocks = 0;
 292     m_FS = new wxFileSystem();
 293 #if wxUSE_STATUSBAR
 294     m_RelatedStatusBar = -1;
 295 #endif // wxUSE_STATUSBAR
 296     m_RelatedFrame = NULL;
 297     m_TitleFormat = wxT("%s");
 298     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 299     m_Cell = NULL;
 300     m_Parser = new wxHtmlWinParser(this);
 301     m_Parser->SetFS(m_FS);
 302     m_HistoryPos = -1;
 303     m_HistoryOn = true;
 304     m_History = new wxHtmlHistoryArray;
 305     m_Processors = NULL;
 306     SetBorders(10);
 307     m_selection = NULL;
 308     m_makingSelection = false;
 309 #if wxUSE_CLIPBOARD
 310     m_timerAutoScroll = NULL;
 311     m_lastDoubleClick = 0;
 312 #endif // wxUSE_CLIPBOARD
 313     m_backBuffer = NULL;
 314     m_eraseBgInOnPaint = false;
 315     m_tmpSelFromCell = NULL;
 316 }
 317
 318 bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
 319                           const wxPoint& pos, const wxSize& size,
 320                           long style, const wxString& name)
 321 {
 322     if (!wxScrolledWindow::Create(parent, id, pos, size,
 323                                   style | wxVSCROLL | wxHSCROLL,
 324                                   name))
 325         return false;
 326
 327     SetPage(wxT("<html><body></body></html>"));
 328     return true;
 329 }
 330
 331
 332 wxHtmlWindow::~wxHtmlWindow()
 333 {
 334 #if wxUSE_CLIPBOARD
 335     StopAutoScrolling();
 336 #endif // wxUSE_CLIPBOARD
 337     HistoryClear();
 338
 339     delete m_selection;
 340
 341     delete m_Cell;
 342
 343     if ( m_Processors )
 344     {
 345         WX_CLEAR_LIST(wxHtmlProcessorList, *m_Processors);
 346     }
 347
 348     delete m_Parser;
 349     delete m_FS;
 350     delete m_History;
 351     delete m_Processors;
 352     delete m_backBuffer;
 353 }
 354
 355
 356
 357 void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
 358 {
 359     m_RelatedFrame = frame;
 360     m_TitleFormat = format;
 361 }
 362
 363
 364
 365 #if wxUSE_STATUSBAR
 366 void wxHtmlWindow::SetRelatedStatusBar(int bar)
 367 {
 368     m_RelatedStatusBar = bar;
 369 }
 370 #endif // wxUSE_STATUSBAR
 371
 372
 373
 374 void wxHtmlWindow::SetFonts(const wxString& normal_face, const wxString& fixed_face, const int *sizes)
 375 {
 376     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 377
 378     // re-layout the page after changing fonts:
 379     DoSetPage(*(m_Parser->GetSource()));
 380 }
 381
 382 void wxHtmlWindow::SetStandardFonts(int size,
 383                                     const wxString& normal_face,
 384                                     const wxString& fixed_face)
 385 {
 386     m_Parser->SetStandardFonts(size, normal_face, fixed_face);
 387
 388     // re-layout the page after changing fonts:
 389     DoSetPage(*(m_Parser->GetSource()));
 390 }
 391
 392 bool wxHtmlWindow::SetPage(const wxString& source)
 393 {
 394     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 395     return DoSetPage(source);
 396 }
 397
 398 bool wxHtmlWindow::DoSetPage(const wxString& source)
 399 {
 400     wxString newsrc(source);
 401
 402     wxDELETE(m_selection);
 403
 404     // we will soon delete all the cells, so clear pointers to them:
 405     m_tmpSelFromCell = NULL;
 406
 407     // pass HTML through registered processors:
 408     if (m_Processors || m_GlobalProcessors)
 409     {
 410         wxHtmlProcessorList::compatibility_iterator nodeL, nodeG;
 411         int prL, prG;
 412
 413         if ( m_Processors )
 414             nodeL = m_Processors->GetFirst();
 415         if ( m_GlobalProcessors )
 416             nodeG = m_GlobalProcessors->GetFirst();
 417
 418         // VS: there are two lists, global and local, both of them sorted by
 419         //     priority. Since we have to go through _both_ lists with
 420         //     decreasing priority, we "merge-sort" the lists on-line by
 421         //     processing that one of the two heads that has higher priority
 422         //     in every iteration
 423         while (nodeL || nodeG)
 424         {
 425             prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
 426             prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
 427             if (prL > prG)
 428             {
 429                 if (nodeL->GetData()->IsEnabled())
 430                     newsrc = nodeL->GetData()->Process(newsrc);
 431                 nodeL = nodeL->GetNext();
 432             }
 433             else // prL <= prG
 434             {
 435                 if (nodeG->GetData()->IsEnabled())
 436                     newsrc = nodeG->GetData()->Process(newsrc);
 437                 nodeG = nodeG->GetNext();
 438             }
 439         }
 440     }
 441
 442     // ...and run the parser on it:
 443     wxClientDC *dc = new wxClientDC(this);
 444     dc->SetMapMode(wxMM_TEXT);
 445     SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
 446     SetBackgroundImage(wxNullBitmap);
 447
 448     m_Parser->SetDC(dc);
 449     if (m_Cell)
 450     {
 451         delete m_Cell;
 452         m_Cell = NULL;
 453     }
 454     m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
 455     delete dc;
 456     m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 457     m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
 458     CreateLayout();
 459     if (m_tmpCanDrawLocks == 0)
 460         Refresh();
 461     return true;
 462 }
 463
 464 bool wxHtmlWindow::AppendToPage(const wxString& source)
 465 {
 466     return DoSetPage(*(GetParser()->GetSource()) + source);
 467 }
 468
 469 bool wxHtmlWindow::LoadPage(const wxString& location)
 470 {
 471     wxBusyCursor busyCursor;
 472
 473     wxFSFile *f;
 474     bool rt_val;
 475     bool needs_refresh = false;
 476
 477     m_tmpCanDrawLocks++;
 478     if (m_HistoryOn && (m_HistoryPos != -1))
 479     {
 480         // store scroll position into history item:
 481         int x, y;
 482         GetViewStart(&x, &y);
 483         (*m_History)[m_HistoryPos].SetPos(y);
 484     }
 485
 486     if (location[0] == wxT('#'))
 487     {
 488         // local anchor:
 489         wxString anch = location.Mid(1) /*1 to end*/;
 490         m_tmpCanDrawLocks--;
 491         rt_val = ScrollToAnchor(anch);
 492         m_tmpCanDrawLocks++;
 493     }
 494     else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
 495     {
 496         wxString anch = location.AfterFirst(wxT('#'));
 497         m_tmpCanDrawLocks--;
 498         rt_val = ScrollToAnchor(anch);
 499         m_tmpCanDrawLocks++;
 500     }
 501     else if (location.Find(wxT('#')) != wxNOT_FOUND &&
 502              (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
 503     {
 504         wxString anch = location.AfterFirst(wxT('#'));
 505         m_tmpCanDrawLocks--;
 506         rt_val = ScrollToAnchor(anch);
 507         m_tmpCanDrawLocks++;
 508     }
 509
 510     else
 511     {
 512         needs_refresh = true;
 513 #if wxUSE_STATUSBAR
 514         // load&display it:
 515         if (m_RelatedStatusBar != -1)
 516         {
 517             m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
 518             Refresh(false);
 519         }
 520 #endif // wxUSE_STATUSBAR
 521
 522         f = m_Parser->OpenURL(wxHTML_URL_PAGE, location);
 523
 524         // try to interpret 'location' as filename instead of URL:
 525         if (f == NULL)
 526         {
 527             wxFileName fn(location);
 528             wxString location2 = wxFileSystem::FileNameToURL(fn);
 529             f = m_Parser->OpenURL(wxHTML_URL_PAGE, location2);
 530         }
 531
 532         if (f == NULL)
 533         {
 534             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 535             m_tmpCanDrawLocks--;
 536             return false;
 537         }
 538
 539         else
 540         {
 541             wxList::compatibility_iterator node;
 542             wxString src = wxEmptyString;
 543
 544 #if wxUSE_STATUSBAR
 545             if (m_RelatedStatusBar != -1)
 546             {
 547                 wxString msg = _("Loading : ") + location;
 548                 m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
 549                 Refresh(false);
 550             }
 551 #endif // wxUSE_STATUSBAR
 552
 553             node = m_Filters.GetFirst();
 554             while (node)
 555             {
 556                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 557                 if (h->CanRead(*f))
 558                 {
 559                     src = h->ReadFile(*f);
 560                     break;
 561                 }
 562                 node = node->GetNext();
 563             }
 564             if (src == wxEmptyString)
 565             {
 566                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 567                 src = m_DefaultFilter->ReadFile(*f);
 568             }
 569
 570             m_FS->ChangePathTo(f->GetLocation());
 571             rt_val = SetPage(src);
 572             m_OpenedPage = f->GetLocation();
 573             if (f->GetAnchor() != wxEmptyString)
 574             {
 575                 ScrollToAnchor(f->GetAnchor());
 576             }
 577
 578             delete f;
 579
 580 #if wxUSE_STATUSBAR
 581             if (m_RelatedStatusBar != -1)
 582                 m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
 583 #endif // wxUSE_STATUSBAR
 584         }
 585     }
 586
 587     if (m_HistoryOn) // add this page to history there:
 588     {
 589         int c = m_History->GetCount() - (m_HistoryPos + 1);
 590
 591         if (m_HistoryPos < 0 ||
 592             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 593             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 594         {
 595             m_HistoryPos++;
 596             for (int i = 0; i < c; i++)
 597                 m_History->RemoveAt(m_HistoryPos);
 598             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 599         }
 600     }
 601
 602     if (m_OpenedPageTitle == wxEmptyString)
 603         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 604
 605     if (needs_refresh)
 606     {
 607         m_tmpCanDrawLocks--;
 608         Refresh();
 609     }
 610     else
 611         m_tmpCanDrawLocks--;
 612
 613     return rt_val;
 614 }
 615
 616
 617 bool wxHtmlWindow::LoadFile(const wxFileName& filename)
 618 {
 619     wxString url = wxFileSystem::FileNameToURL(filename);
 620     return LoadPage(url);
 621 }
 622
 623
 624 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 625 {
 626     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 627     if (!c)
 628     {
 629         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 630         return false;
 631     }
 632     else
 633     {
 634         int y;
 635
 636         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 637         Scroll(-1, y / wxHTML_SCROLL_STEP);
 638         m_OpenedAnchor = anchor;
 639         return true;
 640     }
 641 }
 642
 643
 644 void wxHtmlWindow::OnSetTitle(const wxString& title)
 645 {
 646     if (m_RelatedFrame)
 647     {
 648         wxString tit;
 649         tit.Printf(m_TitleFormat, title.c_str());
 650         m_RelatedFrame->SetTitle(tit);
 651     }
 652     m_OpenedPageTitle = title;
 653 }
 654
 655
 656
 657
 658
 659 void wxHtmlWindow::CreateLayout()
 660 {
 661     int ClientWidth, ClientHeight;
 662
 663     if (!m_Cell) return;
 664
 665     if ( HasFlag(wxHW_SCROLLBAR_NEVER) )
 666     {
 667         SetScrollbars(1, 1, 0, 0); // always off
 668         GetClientSize(&ClientWidth, &ClientHeight);
 669         m_Cell->Layout(ClientWidth);
 670     }
 671     else // !wxHW_SCROLLBAR_NEVER
 672     {
 673         GetClientSize(&ClientWidth, &ClientHeight);
 674         m_Cell->Layout(ClientWidth);
 675         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 676         {
 677             SetScrollbars(
 678                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 679                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 680                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 681                   /*cheat: top-level frag is always container*/);
 682         }
 683         else /* we fit into window, no need for scrollbars */
 684         {
 685             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 686             GetClientSize(&ClientWidth, &ClientHeight);
 687             m_Cell->Layout(ClientWidth); // ...and relayout
 688         }
 689     }
 690 }
 691
 692
 693
 694 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 695 {
 696     wxString oldpath;
 697     wxString tmp;
 698     int p_fontsizes[7];
 699     wxString p_fff, p_ffn;
 700
 701     if (path != wxEmptyString)
 702     {
 703         oldpath = cfg->GetPath();
 704         cfg->SetPath(path);
 705     }
 706
 707     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 708     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 709     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 710     for (int i = 0; i < 7; i++)
 711     {
 712         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 713         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 714     }
 715     SetFonts(p_ffn, p_fff, p_fontsizes);
 716
 717     if (path != wxEmptyString)
 718         cfg->SetPath(oldpath);
 719 }
 720
 721
 722
 723 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 724 {
 725     wxString oldpath;
 726     wxString tmp;
 727
 728     if (path != wxEmptyString)
 729     {
 730         oldpath = cfg->GetPath();
 731         cfg->SetPath(path);
 732     }
 733
 734     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 735     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 736     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 737     for (int i = 0; i < 7; i++)
 738     {
 739         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 740         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 741     }
 742
 743     if (path != wxEmptyString)
 744         cfg->SetPath(oldpath);
 745 }
 746
 747
 748
 749 bool wxHtmlWindow::HistoryBack()
 750 {
 751     wxString a, l;
 752
 753     if (m_HistoryPos < 1) return false;
 754
 755     // store scroll position into history item:
 756     int x, y;
 757     GetViewStart(&x, &y);
 758     (*m_History)[m_HistoryPos].SetPos(y);
 759
 760     // go to previous position:
 761     m_HistoryPos--;
 762
 763     l = (*m_History)[m_HistoryPos].GetPage();
 764     a = (*m_History)[m_HistoryPos].GetAnchor();
 765     m_HistoryOn = false;
 766     m_tmpCanDrawLocks++;
 767     if (a == wxEmptyString) LoadPage(l);
 768     else LoadPage(l + wxT("#") + a);
 769     m_HistoryOn = true;
 770     m_tmpCanDrawLocks--;
 771     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 772     Refresh();
 773     return true;
 774 }
 775
 776 bool wxHtmlWindow::HistoryCanBack()
 777 {
 778     if (m_HistoryPos < 1) return false;
 779     return true ;
 780 }
 781
 782
 783 bool wxHtmlWindow::HistoryForward()
 784 {
 785     wxString a, l;
 786
 787     if (m_HistoryPos == -1) return false;
 788     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 789
 790     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 791
 792     m_HistoryPos++;
 793     l = (*m_History)[m_HistoryPos].GetPage();
 794     a = (*m_History)[m_HistoryPos].GetAnchor();
 795     m_HistoryOn = false;
 796     m_tmpCanDrawLocks++;
 797     if (a == wxEmptyString) LoadPage(l);
 798     else LoadPage(l + wxT("#") + a);
 799     m_HistoryOn = true;
 800     m_tmpCanDrawLocks--;
 801     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 802     Refresh();
 803     return true;
 804 }
 805
 806 bool wxHtmlWindow::HistoryCanForward()
 807 {
 808     if (m_HistoryPos == -1) return false;
 809     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 810     return true ;
 811 }
 812
 813
 814 void wxHtmlWindow::HistoryClear()
 815 {
 816     m_History->Empty();
 817     m_HistoryPos = -1;
 818 }
 819
 820 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 821 {
 822     if (!m_Processors)
 823     {
 824         m_Processors = new wxHtmlProcessorList;
 825     }
 826     wxHtmlProcessorList::compatibility_iterator node;
 827
 828     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 829     {
 830         if (processor->GetPriority() > node->GetData()->GetPriority())
 831         {
 832             m_Processors->Insert(node, processor);
 833             return;
 834         }
 835     }
 836     m_Processors->Append(processor);
 837 }
 838
 839 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 840 {
 841     if (!m_GlobalProcessors)
 842     {
 843         m_GlobalProcessors = new wxHtmlProcessorList;
 844     }
 845     wxHtmlProcessorList::compatibility_iterator node;
 846
 847     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 848     {
 849         if (processor->GetPriority() > node->GetData()->GetPriority())
 850         {
 851             m_GlobalProcessors->Insert(node, processor);
 852             return;
 853         }
 854     }
 855     m_GlobalProcessors->Append(processor);
 856 }
 857
 858
 859
 860 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 861 {
 862     m_Filters.Append(filter);
 863 }
 864
 865
 866 bool wxHtmlWindow::IsSelectionEnabled() const
 867 {
 868 #if wxUSE_CLIPBOARD
 869     return !HasFlag(wxHW_NO_SELECTION);
 870 #else
 871     return false;
 872 #endif
 873 }
 874
 875
 876 #if wxUSE_CLIPBOARD
 877 wxString wxHtmlWindow::DoSelectionToText(wxHtmlSelection *sel)
 878 {
 879     if ( !sel )
 880         return wxEmptyString;
 881
 882     wxClientDC dc(this);
 883
 884     const wxHtmlCell *end = sel->GetToCell();
 885     wxString text;
 886     wxHtmlTerminalCellsInterator i(sel->GetFromCell(), end);
 887     if ( i )
 888     {
 889         text << i->ConvertToText(sel);
 890         ++i;
 891     }
 892     const wxHtmlCell *prev = *i;
 893     while ( i )
 894     {
 895         if ( prev->GetParent() != i->GetParent() )
 896             text << _T('\n');
 897         text << i->ConvertToText(*i == end ? sel : NULL);
 898         prev = *i;
 899         ++i;
 900     }
 901     return text;
 902 }
 903
 904 wxString wxHtmlWindow::ToText()
 905 {
 906     if (m_Cell)
 907     {
 908         wxHtmlSelection sel;
 909         sel.Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
 910         return DoSelectionToText(&sel);
 911     }
 912     else
 913         return wxEmptyString;
 914 }
 915
 916 #endif // wxUSE_CLIPBOARD
 917
 918 bool wxHtmlWindow::CopySelection(ClipboardType t)
 919 {
 920 #if wxUSE_CLIPBOARD
 921     if ( m_selection )
 922     {
 923 #if defined(__UNIX__) && !defined(__WXMAC__)
 924         wxTheClipboard->UsePrimarySelection(t == Primary);
 925 #else // !__UNIX__
 926         // Primary selection exists only under X11, so don't do anything under
 927         // the other platforms when we try to access it
 928         //
 929         // TODO: this should be abstracted at wxClipboard level!
 930         if ( t == Primary )
 931             return false;
 932 #endif // __UNIX__/!__UNIX__
 933
 934         if ( wxTheClipboard->Open() )
 935         {
 936             const wxString txt(SelectionToText());
 937             wxTheClipboard->SetData(new wxTextDataObject(txt));
 938             wxTheClipboard->Close();
 939             wxLogTrace(_T("wxhtmlselection"),
 940                        _("Copied to clipboard:\"%s\""), txt.c_str());
 941
 942             return true;
 943         }
 944     }
 945 #else
 946     wxUnusedVar(t);
 947 #endif // wxUSE_CLIPBOARD
 948
 949     return false;
 950 }
 951
 952
 953 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 954 {
 955     wxHtmlLinkEvent event(GetId(), link);
 956     event.SetEventObject(this);
 957     if (!GetEventHandler()->ProcessEvent(event))
 958     {
 959         // the default behaviour is to load the URL in this window
 960         const wxMouseEvent *e = event.GetLinkInfo().GetEvent();
 961         if (e == NULL || e->LeftUp())
 962             LoadPage(event.GetLinkInfo().GetHref());
 963     }
 964 }
 965
 966 void wxHtmlWindow::OnEraseBackground(wxEraseEvent& event)
 967 {
 968     if ( !m_bmpBg.Ok() )
 969     {
 970         // don't even skip the event, if we don't have a bg bitmap we're going
 971         // to overwrite background in OnPaint() below anyhow, so letting the
 972         // default handling take place would only result in flicker, just set a
 973         // flag to erase the background below
 974         m_eraseBgInOnPaint = true;
 975         return;
 976     }
 977
 978     wxDC& dc = *event.GetDC();
 979
 980     // if the image is not fully opaque, we have to erase the background before
 981     // drawing it, however avoid doing it for opaque images as this would just
 982     // result in extra flicker without any other effect as background is
 983     // completely covered anyhow
 984     if ( m_bmpBg.GetMask() )
 985     {
 986         dc.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
 987         dc.Clear();
 988     }
 989
 990     const wxSize sizeWin(GetClientSize());
 991     const wxSize sizeBmp(m_bmpBg.GetWidth(), m_bmpBg.GetHeight());
 992     for ( wxCoord x = 0; x < sizeWin.x; x += sizeBmp.x )
 993     {
 994         for ( wxCoord y = 0; y < sizeWin.y; y += sizeBmp.y )
 995         {
 996             dc.DrawBitmap(m_bmpBg, x, y, true /* use mask */);
 997         }
 998     }
 999 }
1000
1001 void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
1002 {
1003     wxPaintDC dc(this);
1004
1005     if (m_tmpCanDrawLocks > 0 || m_Cell == NULL)
1006         return;
1007
1008     int x, y;
1009     GetViewStart(&x, &y);
1010     wxRect rect = GetUpdateRegion().GetBox();
1011     wxSize sz = GetSize();
1012
1013     wxMemoryDC dcm;
1014     if ( !m_backBuffer )
1015         m_backBuffer = new wxBitmap(sz.x, sz.y);
1016     dcm.SelectObject(*m_backBuffer);
1017
1018     if ( m_eraseBgInOnPaint )
1019     {
1020         dcm.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
1021         dcm.Clear();
1022
1023         m_eraseBgInOnPaint = false;
1024     }
1025     else // someone has already erased the background, keep it
1026     {
1027         // preserve the existing background, otherwise we'd erase anything the
1028         // user code had drawn in its EVT_ERASE_BACKGROUND handler when we do
1029         // the Blit back below
1030         dcm.Blit(0, rect.GetTop(),
1031                  sz.x, rect.GetBottom() - rect.GetTop() + 1,
1032                  &dc,
1033                  0, rect.GetTop());
1034     }
1035
1036     PrepareDC(dcm);
1037     dcm.SetMapMode(wxMM_TEXT);
1038     dcm.SetBackgroundMode(wxTRANSPARENT);
1039
1040     wxHtmlRenderingInfo rinfo;
1041     wxDefaultHtmlRenderingStyle rstyle;
1042     rinfo.SetSelection(m_selection);
1043     rinfo.SetStyle(&rstyle);
1044     m_Cell->Draw(dcm, 0, 0,
1045                  y * wxHTML_SCROLL_STEP + rect.GetTop(),
1046                  y * wxHTML_SCROLL_STEP + rect.GetBottom(),
1047                  rinfo);
1048
1049 //#define DEBUG_HTML_SELECTION
1050 #ifdef DEBUG_HTML_SELECTION
1051     {
1052     int xc, yc, x, y;
1053     wxGetMousePosition(&xc, &yc);
1054     ScreenToClient(&xc, &yc);
1055     CalcUnscrolledPosition(xc, yc, &x, &y);
1056     wxHtmlCell *at = m_Cell->FindCellByPos(x, y);
1057     wxHtmlCell *before =
1058         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_BEFORE);
1059     wxHtmlCell *after =
1060         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_AFTER);
1061
1062     dcm.SetBrush(*wxTRANSPARENT_BRUSH);
1063     dcm.SetPen(*wxBLACK_PEN);
1064     if (at)
1065         dcm.DrawRectangle(at->GetAbsPos(),
1066                           wxSize(at->GetWidth(),at->GetHeight()));
1067     dcm.SetPen(*wxGREEN_PEN);
1068     if (before)
1069         dcm.DrawRectangle(before->GetAbsPos().x+1, before->GetAbsPos().y+1,
1070                           before->GetWidth()-2,before->GetHeight()-2);
1071     dcm.SetPen(*wxRED_PEN);
1072     if (after)
1073         dcm.DrawRectangle(after->GetAbsPos().x+2, after->GetAbsPos().y+2,
1074                           after->GetWidth()-4,after->GetHeight()-4);
1075     }
1076 #endif
1077
1078     dcm.SetDeviceOrigin(0,0);
1079     dc.Blit(0, rect.GetTop(),
1080             sz.x, rect.GetBottom() - rect.GetTop() + 1,
1081             &dcm,
1082             0, rect.GetTop());
1083 }
1084
1085
1086
1087
1088 void wxHtmlWindow::OnSize(wxSizeEvent& event)
1089 {
1090     wxDELETE(m_backBuffer);
1091
1092     wxScrolledWindow::OnSize(event);
1093     CreateLayout();
1094
1095     // Recompute selection if necessary:
1096     if ( m_selection )
1097     {
1098         m_selection->Set(m_selection->GetFromCell(),
1099                          m_selection->GetToCell());
1100         m_selection->ClearPrivPos();
1101     }
1102
1103     Refresh();
1104 }
1105
1106
1107 void wxHtmlWindow::OnMouseMove(wxMouseEvent& WXUNUSED(event))
1108 {
1109     wxHtmlWindowMouseHelper::HandleMouseMoved();
1110 }
1111
1112 void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
1113 {
1114 #if wxUSE_CLIPBOARD
1115     if ( event.LeftDown() && IsSelectionEnabled() )
1116     {
1117         const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
1118         if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
1119         {
1120             SelectLine(CalcUnscrolledPosition(event.GetPosition()));
1121
1122             (void) CopySelection();
1123         }
1124         else
1125         {
1126             m_makingSelection = true;
1127
1128             if ( m_selection )
1129             {
1130                 wxDELETE(m_selection);
1131                 Refresh();
1132             }
1133             m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
1134             m_tmpSelFromCell = NULL;
1135
1136             CaptureMouse();
1137         }
1138     }
1139 #else
1140     wxUnusedVar(event);
1141 #endif // wxUSE_CLIPBOARD
1142 }
1143
1144 void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
1145 {
1146 #if wxUSE_CLIPBOARD
1147     if ( m_makingSelection )
1148     {
1149         ReleaseMouse();
1150         m_makingSelection = false;
1151
1152         // did the user move the mouse far enough from starting point?
1153         if ( CopySelection(Primary) )
1154         {
1155             // we don't want mouse up event that ended selecting to be
1156             // handled as mouse click and e.g. follow hyperlink:
1157             return;
1158         }
1159     }
1160 #endif // wxUSE_CLIPBOARD
1161
1162     SetFocus();
1163
1164     wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
1165     wxHtmlWindowMouseHelper::HandleMouseClick(m_Cell, pos, event);
1166 }
1167
1168 #if wxUSE_CLIPBOARD
1169 void wxHtmlWindow::OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
1170 {
1171     if ( !m_makingSelection )
1172         return;
1173
1174     // discard the selecting operation
1175     m_makingSelection = false;
1176     wxDELETE(m_selection);
1177     m_tmpSelFromCell = NULL;
1178     Refresh();
1179 }
1180 #endif // wxUSE_CLIPBOARD
1181
1182
1183 void wxHtmlWindow::OnInternalIdle()
1184 {
1185     wxWindow::OnInternalIdle();
1186
1187     if (m_Cell != NULL && DidMouseMove())
1188     {
1189 #ifdef DEBUG_HTML_SELECTION
1190         Refresh();
1191 #endif
1192         int xc, yc, x, y;
1193         wxGetMousePosition(&xc, &yc);
1194         ScreenToClient(&xc, &yc);
1195         CalcUnscrolledPosition(xc, yc, &x, &y);
1196
1197         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
1198
1199         // handle selection update:
1200         if ( m_makingSelection )
1201         {
1202             if ( !m_tmpSelFromCell )
1203                 m_tmpSelFromCell = m_Cell->FindCellByPos(
1204                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y);
1205
1206             // NB: a trick - we adjust selFromPos to be upper left or bottom
1207             //     right corner of the first cell of the selection depending
1208             //     on whether the mouse is moving to the right or to the left.
1209             //     This gives us more "natural" behaviour when selecting
1210             //     a line (specifically, first cell of the next line is not
1211             //     included if you drag selection from left to right over
1212             //     entire line):
1213             wxPoint dirFromPos;
1214             if ( !m_tmpSelFromCell )
1215             {
1216                 dirFromPos = m_tmpSelFromPos;
1217             }
1218             else
1219             {
1220                 dirFromPos = m_tmpSelFromCell->GetAbsPos();
1221                 if ( x < m_tmpSelFromPos.x )
1222                 {
1223                     dirFromPos.x += m_tmpSelFromCell->GetWidth();
1224                     dirFromPos.y += m_tmpSelFromCell->GetHeight();
1225                 }
1226             }
1227             bool goingDown = dirFromPos.y < y ||
1228                              (dirFromPos.y == y && dirFromPos.x < x);
1229
1230             // determine selection span:
1231             if ( /*still*/ !m_tmpSelFromCell )
1232             {
1233                 if (goingDown)
1234                 {
1235                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1236                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1237                                          wxHTML_FIND_NEAREST_AFTER);
1238                     if (!m_tmpSelFromCell)
1239                         m_tmpSelFromCell = m_Cell->GetFirstTerminal();
1240                 }
1241                 else
1242                 {
1243                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1244                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1245                                          wxHTML_FIND_NEAREST_BEFORE);
1246                     if (!m_tmpSelFromCell)
1247                         m_tmpSelFromCell = m_Cell->GetLastTerminal();
1248                 }
1249             }
1250
1251             wxHtmlCell *selcell = cell;
1252             if (!selcell)
1253             {
1254                 if (goingDown)
1255                 {
1256                     selcell = m_Cell->FindCellByPos(x, y,
1257                                                  wxHTML_FIND_NEAREST_BEFORE);
1258                     if (!selcell)
1259                         selcell = m_Cell->GetLastTerminal();
1260                 }
1261                 else
1262                 {
1263                     selcell = m_Cell->FindCellByPos(x, y,
1264                                                  wxHTML_FIND_NEAREST_AFTER);
1265                     if (!selcell)
1266                         selcell = m_Cell->GetFirstTerminal();
1267                 }
1268             }
1269
1270             // NB: it may *rarely* happen that the code above didn't find one
1271             //     of the cells, e.g. if wxHtmlWindow doesn't contain any
1272             //     visible cells.
1273             if ( selcell && m_tmpSelFromCell )
1274             {
1275                 if ( !m_selection )
1276                 {
1277                     // start selecting only if mouse movement was big enough
1278                     // (otherwise it was meant as mouse click, not selection):
1279                     const int PRECISION = 2;
1280                     wxPoint diff = m_tmpSelFromPos - wxPoint(x,y);
1281                     if (abs(diff.x) > PRECISION || abs(diff.y) > PRECISION)
1282                     {
1283                         m_selection = new wxHtmlSelection();
1284                     }
1285                 }
1286                 if ( m_selection )
1287                 {
1288                     if ( m_tmpSelFromCell->IsBefore(selcell) )
1289                     {
1290                         m_selection->Set(m_tmpSelFromPos, m_tmpSelFromCell,
1291                                          wxPoint(x,y), selcell);
1292                     }
1293                     else
1294                     {
1295                         m_selection->Set(wxPoint(x,y), selcell,
1296                                          m_tmpSelFromPos, m_tmpSelFromCell);
1297                     }
1298                     m_selection->ClearPrivPos();
1299                     Refresh();
1300                 }
1301             }
1302         }
1303
1304         // handle cursor and status bar text changes:
1305
1306         // NB: because we're passing in 'cell' and not 'm_Cell' (so that the
1307         //     leaf cell lookup isn't done twice), we need to adjust the
1308         //     position for the new root:
1309         wxPoint posInCell(x, y);
1310         if (cell)
1311             posInCell -= cell->GetAbsPos();
1312         wxHtmlWindowMouseHelper::HandleIdle(cell, posInCell);
1313     }
1314 }
1315
1316 #if wxUSE_CLIPBOARD
1317 void wxHtmlWindow::StopAutoScrolling()
1318 {
1319     if ( m_timerAutoScroll )
1320     {
1321         wxDELETE(m_timerAutoScroll);
1322     }
1323 }
1324
1325 void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event)
1326 {
1327     StopAutoScrolling();
1328     event.Skip();
1329 }
1330
1331 void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
1332 {
1333     // don't prevent the usual processing of the event from taking place
1334     event.Skip();
1335
1336     // when a captured mouse leave a scrolled window we start generate
1337     // scrolling events to allow, for example, extending selection beyond the
1338     // visible area in some controls
1339     if ( wxWindow::GetCapture() == this )
1340     {
1341         // where is the mouse leaving?
1342         int pos, orient;
1343         wxPoint pt = event.GetPosition();
1344         if ( pt.x < 0 )
1345         {
1346             orient = wxHORIZONTAL;
1347             pos = 0;
1348         }
1349         else if ( pt.y < 0 )
1350         {
1351             orient = wxVERTICAL;
1352             pos = 0;
1353         }
1354         else // we're lower or to the right of the window
1355         {
1356             wxSize size = GetClientSize();
1357             if ( pt.x > size.x )
1358             {
1359                 orient = wxHORIZONTAL;
1360                 pos = GetVirtualSize().x / wxHTML_SCROLL_STEP;
1361             }
1362             else if ( pt.y > size.y )
1363             {
1364                 orient = wxVERTICAL;
1365                 pos = GetVirtualSize().y / wxHTML_SCROLL_STEP;
1366             }
1367             else // this should be impossible
1368             {
1369                 // but seems to happen sometimes under wxMSW - maybe it's a bug
1370                 // there but for now just ignore it
1371
1372                 //wxFAIL_MSG( _T("can't understand where has mouse gone") );
1373
1374                 return;
1375             }
1376         }
1377
1378         // only start the auto scroll timer if the window can be scrolled in
1379         // this direction
1380         if ( !HasScrollbar(orient) )
1381             return;
1382
1383         delete m_timerAutoScroll;
1384         m_timerAutoScroll = new wxHtmlWinAutoScrollTimer
1385                                 (
1386                                     this,
1387                                     pos == 0 ? wxEVT_SCROLLWIN_LINEUP
1388                                              : wxEVT_SCROLLWIN_LINEDOWN,
1389                                     pos,
1390                                     orient
1391                                 );
1392         m_timerAutoScroll->Start(50); // FIXME: make configurable
1393     }
1394 }
1395
1396 void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
1397 {
1398     if ( IsSelectionEnabled() &&
1399             (event.GetKeyCode() == 'C' && event.CmdDown()) )
1400     {
1401         wxClipboardTextEvent evt(wxEVT_COMMAND_TEXT_COPY, GetId());
1402
1403         evt.SetEventObject(this);
1404
1405         GetEventHandler()->ProcessEvent(evt);
1406     }
1407 }
1408
1409 void wxHtmlWindow::OnCopy(wxCommandEvent& WXUNUSED(event))
1410 {
1411     (void) CopySelection();
1412 }
1413
1414 void wxHtmlWindow::OnClipboardEvent(wxClipboardTextEvent& WXUNUSED(event))
1415 {
1416     (void) CopySelection();
1417 }
1418
1419 void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event)
1420 {
1421     // select word under cursor:
1422     if ( IsSelectionEnabled() )
1423     {
1424         SelectWord(CalcUnscrolledPosition(event.GetPosition()));
1425
1426         (void) CopySelection(Primary);
1427
1428         m_lastDoubleClick = wxGetLocalTimeMillis();
1429     }
1430     else
1431         event.Skip();
1432 }
1433
1434 void wxHtmlWindow::SelectWord(const wxPoint& pos)
1435 {
1436     if ( m_Cell )
1437     {
1438         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1439         if ( cell )
1440         {
1441             delete m_selection;
1442             m_selection = new wxHtmlSelection();
1443             m_selection->Set(cell, cell);
1444             RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
1445                                wxSize(cell->GetWidth(), cell->GetHeight())));
1446         }
1447     }
1448 }
1449
1450 void wxHtmlWindow::SelectLine(const wxPoint& pos)
1451 {
1452     if ( m_Cell )
1453     {
1454         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1455         if ( cell )
1456         {
1457             // We use following heuristic to find a "line": let the line be all
1458             // cells in same container as the cell under mouse cursor that are
1459             // neither completely above nor completely bellow the clicked cell
1460             // (i.e. are likely to be words positioned on same line of text).
1461
1462             int y1 = cell->GetAbsPos().y;
1463             int y2 = y1 + cell->GetHeight();
1464             int y;
1465             const wxHtmlCell *c;
1466             const wxHtmlCell *before = NULL;
1467             const wxHtmlCell *after = NULL;
1468
1469             // find last cell of line:
1470             for ( c = cell->GetNext(); c; c = c->GetNext())
1471             {
1472                 y = c->GetAbsPos().y;
1473                 if ( y + c->GetHeight() > y1 && y < y2 )
1474                     after = c;
1475                 else
1476                     break;
1477             }
1478             if ( !after )
1479                 after = cell;
1480
1481             // find first cell of line:
1482             for ( c = cell->GetParent()->GetFirstChild();
1483                     c && c != cell; c = c->GetNext())
1484             {
1485                 y = c->GetAbsPos().y;
1486                 if ( y + c->GetHeight() > y1 && y < y2 )
1487                 {
1488                     if ( ! before )
1489                         before = c;
1490                 }
1491                 else
1492                     before = NULL;
1493             }
1494             if ( !before )
1495                 before = cell;
1496
1497             delete m_selection;
1498             m_selection = new wxHtmlSelection();
1499             m_selection->Set(before, after);
1500
1501             Refresh();
1502         }
1503     }
1504 }
1505
1506 void wxHtmlWindow::SelectAll()
1507 {
1508     if ( m_Cell )
1509     {
1510         delete m_selection;
1511         m_selection = new wxHtmlSelection();
1512         m_selection->Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
1513         Refresh();
1514     }
1515 }
1516
1517 #endif // wxUSE_CLIPBOARD
1518
1519
1520
1521 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
1522
1523 #if wxUSE_EXTENDED_RTTI
1524 IMPLEMENT_DYNAMIC_CLASS_XTI(wxHtmlWindow, wxScrolledWindow,"wx/html/htmlwin.h")
1525
1526 wxBEGIN_PROPERTIES_TABLE(wxHtmlWindow)
1527 /*
1528     TODO PROPERTIES
1529         style , wxHW_SCROLLBAR_AUTO
1530         borders , (dimension)
1531         url , string
1532         htmlcode , string
1533 */
1534 wxEND_PROPERTIES_TABLE()
1535
1536 wxBEGIN_HANDLERS_TABLE(wxHtmlWindow)
1537 wxEND_HANDLERS_TABLE()
1538
1539 wxCONSTRUCTOR_5( wxHtmlWindow , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
1540 #else
1541 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
1542 #endif
1543
1544 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
1545     EVT_SIZE(wxHtmlWindow::OnSize)
1546     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseDown)
1547     EVT_LEFT_UP(wxHtmlWindow::OnMouseUp)
1548     EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp)
1549     EVT_MOTION(wxHtmlWindow::OnMouseMove)
1550     EVT_ERASE_BACKGROUND(wxHtmlWindow::OnEraseBackground)
1551     EVT_PAINT(wxHtmlWindow::OnPaint)
1552 #if wxUSE_CLIPBOARD
1553     EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick)
1554     EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter)
1555     EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave)
1556     EVT_MOUSE_CAPTURE_LOST(wxHtmlWindow::OnMouseCaptureLost)
1557     EVT_KEY_UP(wxHtmlWindow::OnKeyUp)
1558     EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy)
1559     EVT_TEXT_COPY(wxID_ANY, wxHtmlWindow::OnClipboardEvent)
1560 #endif // wxUSE_CLIPBOARD
1561 END_EVENT_TABLE()
1562
1563 //-----------------------------------------------------------------------------
1564 // wxHtmlWindowInterface implementation in wxHtmlWindow
1565 //-----------------------------------------------------------------------------
1566
1567 void wxHtmlWindow::SetHTMLWindowTitle(const wxString& title)
1568 {
1569     OnSetTitle(title);
1570 }
1571
1572 void wxHtmlWindow::OnHTMLLinkClicked(const wxHtmlLinkInfo& link)
1573 {
1574     OnLinkClicked(link);
1575 }
1576
1577 wxHtmlOpeningStatus wxHtmlWindow::OnHTMLOpeningURL(wxHtmlURLType type,
1578                                                    const wxString& url,
1579                                                    wxString *redirect) const
1580 {
1581     return OnOpeningURL(type, url, redirect);
1582 }
1583
1584 wxPoint wxHtmlWindow::HTMLCoordsToWindow(wxHtmlCell *WXUNUSED(cell),
1585                                          const wxPoint& pos) const
1586 {
1587     return CalcScrolledPosition(pos);
1588 }
1589
1590 wxWindow* wxHtmlWindow::GetHTMLWindow()
1591 {
1592     return this;
1593 }
1594
1595 wxColour wxHtmlWindow::GetHTMLBackgroundColour() const
1596 {
1597     return GetBackgroundColour();
1598 }
1599
1600 void wxHtmlWindow::SetHTMLBackgroundColour(const wxColour& clr)
1601 {
1602     SetBackgroundColour(clr);
1603 }
1604
1605 void wxHtmlWindow::SetHTMLBackgroundImage(const wxBitmap& bmpBg)
1606 {
1607     SetBackgroundImage(bmpBg);
1608 }
1609
1610 void wxHtmlWindow::SetHTMLStatusText(const wxString& text)
1611 {
1612 #if wxUSE_STATUSBAR
1613     if (m_RelatedStatusBar != -1)
1614         m_RelatedFrame->SetStatusText(text, m_RelatedStatusBar);
1615 #else
1616     wxUnusedVar(text);
1617 #endif // wxUSE_STATUSBAR
1618 }
1619
1620 /*static*/
1621 wxCursor wxHtmlWindow::GetDefaultHTMLCursor(HTMLCursor type)
1622 {
1623     switch (type)
1624     {
1625         case HTMLCursor_Link:
1626             if ( !ms_cursorLink )
1627                 ms_cursorLink = new wxCursor(wxCURSOR_HAND);
1628             return *ms_cursorLink;
1629
1630         case HTMLCursor_Text:
1631             if ( !ms_cursorText )
1632                 ms_cursorText = new wxCursor(wxCURSOR_IBEAM);
1633             return *ms_cursorText;
1634
1635         case HTMLCursor_Default:
1636         default:
1637             return *wxSTANDARD_CURSOR;
1638     }
1639 }
1640
1641 wxCursor wxHtmlWindow::GetHTMLCursor(HTMLCursor type) const
1642 {
1643     return GetDefaultHTMLCursor(type);
1644 }
1645
1646
1647 //-----------------------------------------------------------------------------
1648 // wxHtmlWinModule
1649 //-----------------------------------------------------------------------------
1650
1651 // A module to allow initialization/cleanup
1652 // without calling these functions from app.cpp or from
1653 // the user's application.
1654
1655 class wxHtmlWinModule: public wxModule
1656 {
1657 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
1658 public:
1659     wxHtmlWinModule() : wxModule() {}
1660     bool OnInit() { return true; }
1661     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
1662 };
1663
1664 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
1665
1666
1667 // This hack forces the linker to always link in m_* files
1668 // (wxHTML doesn't work without handlers from these files)
1669 #include "wx/html/forcelnk.h"
1670 FORCE_WXHTML_MODULES()
1671
1672 #endif // wxUSE_HTML