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 #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     wxCHECK_MSG( !location.empty(), false, "location must be non-empty" );
 472
 473     wxBusyCursor busyCursor;
 474
 475     bool rt_val;
 476     bool needs_refresh = false;
 477
 478     m_tmpCanDrawLocks++;
 479     if (m_HistoryOn && (m_HistoryPos != -1))
 480     {
 481         // store scroll position into history item:
 482         int x, y;
 483         GetViewStart(&x, &y);
 484         (*m_History)[m_HistoryPos].SetPos(y);
 485     }
 486
 487     // first check if we're moving to an anchor in the same page
 488     size_t posLocalAnchor = location.Find('#');
 489     if ( posLocalAnchor != wxString::npos && posLocalAnchor != 0 )
 490     {
 491         // check if the part before the anchor is the same as the (either
 492         // relative or absolute) URI of the current page
 493         const wxString beforeAnchor = location.substr(0, posLocalAnchor);
 494         if ( beforeAnchor != m_OpenedPage &&
 495                 m_FS->GetPath() + beforeAnchor != m_OpenedPage )
 496         {
 497             // indicate that we're not moving to a local anchor
 498             posLocalAnchor = wxString::npos;
 499         }
 500     }
 501
 502     if ( posLocalAnchor != wxString::npos )
 503     {
 504         m_tmpCanDrawLocks--;
 505         rt_val = ScrollToAnchor(location.substr(posLocalAnchor + 1));
 506         m_tmpCanDrawLocks++;
 507     }
 508     else // moving to another page
 509     {
 510         needs_refresh = true;
 511 #if wxUSE_STATUSBAR
 512         // load&display it:
 513         if (m_RelatedStatusBar != -1)
 514         {
 515             m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
 516             Refresh(false);
 517         }
 518 #endif // wxUSE_STATUSBAR
 519
 520         wxFSFile *f = m_Parser->OpenURL(wxHTML_URL_PAGE, location);
 521
 522         // try to interpret 'location' as filename instead of URL:
 523         if (f == NULL)
 524         {
 525             wxFileName fn(location);
 526             wxString location2 = wxFileSystem::FileNameToURL(fn);
 527             f = m_Parser->OpenURL(wxHTML_URL_PAGE, location2);
 528         }
 529
 530         if (f == NULL)
 531         {
 532             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 533             m_tmpCanDrawLocks--;
 534             SetHTMLStatusText(wxEmptyString);
 535             return false;
 536         }
 537
 538         else
 539         {
 540             wxList::compatibility_iterator node;
 541             wxString src = wxEmptyString;
 542
 543 #if wxUSE_STATUSBAR
 544             if (m_RelatedStatusBar != -1)
 545             {
 546                 wxString msg = _("Loading : ") + location;
 547                 m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
 548                 Refresh(false);
 549             }
 550 #endif // wxUSE_STATUSBAR
 551
 552             node = m_Filters.GetFirst();
 553             while (node)
 554             {
 555                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 556                 if (h->CanRead(*f))
 557                 {
 558                     src = h->ReadFile(*f);
 559                     break;
 560                 }
 561                 node = node->GetNext();
 562             }
 563             if (src == wxEmptyString)
 564             {
 565                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 566                 src = m_DefaultFilter->ReadFile(*f);
 567             }
 568
 569             m_FS->ChangePathTo(f->GetLocation());
 570             rt_val = SetPage(src);
 571             m_OpenedPage = f->GetLocation();
 572             if (f->GetAnchor() != wxEmptyString)
 573             {
 574                 ScrollToAnchor(f->GetAnchor());
 575             }
 576
 577             delete f;
 578
 579 #if wxUSE_STATUSBAR
 580             if (m_RelatedStatusBar != -1)
 581                 m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
 582 #endif // wxUSE_STATUSBAR
 583         }
 584     }
 585
 586     if (m_HistoryOn) // add this page to history there:
 587     {
 588         int c = m_History->GetCount() - (m_HistoryPos + 1);
 589
 590         if (m_HistoryPos < 0 ||
 591             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 592             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 593         {
 594             m_HistoryPos++;
 595             for (int i = 0; i < c; i++)
 596                 m_History->RemoveAt(m_HistoryPos);
 597             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 598         }
 599     }
 600
 601     if (m_OpenedPageTitle == wxEmptyString)
 602         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 603
 604     if (needs_refresh)
 605     {
 606         m_tmpCanDrawLocks--;
 607         Refresh();
 608     }
 609     else
 610         m_tmpCanDrawLocks--;
 611
 612     return rt_val;
 613 }
 614
 615
 616 bool wxHtmlWindow::LoadFile(const wxFileName& filename)
 617 {
 618     wxString url = wxFileSystem::FileNameToURL(filename);
 619     return LoadPage(url);
 620 }
 621
 622
 623 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 624 {
 625     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 626     if (!c)
 627     {
 628         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 629         return false;
 630     }
 631     else
 632     {
 633         int y;
 634
 635         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 636         Scroll(-1, y / wxHTML_SCROLL_STEP);
 637         m_OpenedAnchor = anchor;
 638         return true;
 639     }
 640 }
 641
 642
 643 void wxHtmlWindow::OnSetTitle(const wxString& title)
 644 {
 645     if (m_RelatedFrame)
 646     {
 647         wxString tit;
 648         tit.Printf(m_TitleFormat, title.c_str());
 649         m_RelatedFrame->SetTitle(tit);
 650     }
 651     m_OpenedPageTitle = title;
 652 }
 653
 654
 655
 656
 657
 658 void wxHtmlWindow::CreateLayout()
 659 {
 660     int ClientWidth, ClientHeight;
 661
 662     if (!m_Cell) return;
 663
 664     if ( HasFlag(wxHW_SCROLLBAR_NEVER) )
 665     {
 666         SetScrollbars(1, 1, 0, 0); // always off
 667         GetClientSize(&ClientWidth, &ClientHeight);
 668         m_Cell->Layout(ClientWidth);
 669     }
 670     else // !wxHW_SCROLLBAR_NEVER
 671     {
 672         GetClientSize(&ClientWidth, &ClientHeight);
 673         m_Cell->Layout(ClientWidth);
 674         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 675         {
 676             SetScrollbars(
 677                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 678                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 679                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 680                   /*cheat: top-level frag is always container*/);
 681         }
 682         else /* we fit into window, no need for scrollbars */
 683         {
 684             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 685             GetClientSize(&ClientWidth, &ClientHeight);
 686             m_Cell->Layout(ClientWidth); // ...and relayout
 687         }
 688     }
 689 }
 690
 691
 692
 693 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 694 {
 695     wxString oldpath;
 696     wxString tmp;
 697     int p_fontsizes[7];
 698     wxString p_fff, p_ffn;
 699
 700     if (path != wxEmptyString)
 701     {
 702         oldpath = cfg->GetPath();
 703         cfg->SetPath(path);
 704     }
 705
 706     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 707     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 708     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 709     for (int i = 0; i < 7; i++)
 710     {
 711         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 712         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 713     }
 714     SetFonts(p_ffn, p_fff, p_fontsizes);
 715
 716     if (path != wxEmptyString)
 717         cfg->SetPath(oldpath);
 718 }
 719
 720
 721
 722 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 723 {
 724     wxString oldpath;
 725     wxString tmp;
 726
 727     if (path != wxEmptyString)
 728     {
 729         oldpath = cfg->GetPath();
 730         cfg->SetPath(path);
 731     }
 732
 733     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 734     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 735     cfg->Write(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         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 740     }
 741
 742     if (path != wxEmptyString)
 743         cfg->SetPath(oldpath);
 744 }
 745
 746
 747
 748 bool wxHtmlWindow::HistoryBack()
 749 {
 750     wxString a, l;
 751
 752     if (m_HistoryPos < 1) return false;
 753
 754     // store scroll position into history item:
 755     int x, y;
 756     GetViewStart(&x, &y);
 757     (*m_History)[m_HistoryPos].SetPos(y);
 758
 759     // go to previous position:
 760     m_HistoryPos--;
 761
 762     l = (*m_History)[m_HistoryPos].GetPage();
 763     a = (*m_History)[m_HistoryPos].GetAnchor();
 764     m_HistoryOn = false;
 765     m_tmpCanDrawLocks++;
 766     if (a == wxEmptyString) LoadPage(l);
 767     else LoadPage(l + wxT("#") + a);
 768     m_HistoryOn = true;
 769     m_tmpCanDrawLocks--;
 770     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 771     Refresh();
 772     return true;
 773 }
 774
 775 bool wxHtmlWindow::HistoryCanBack()
 776 {
 777     if (m_HistoryPos < 1) return false;
 778     return true ;
 779 }
 780
 781
 782 bool wxHtmlWindow::HistoryForward()
 783 {
 784     wxString a, l;
 785
 786     if (m_HistoryPos == -1) return false;
 787     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 788
 789     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 790
 791     m_HistoryPos++;
 792     l = (*m_History)[m_HistoryPos].GetPage();
 793     a = (*m_History)[m_HistoryPos].GetAnchor();
 794     m_HistoryOn = false;
 795     m_tmpCanDrawLocks++;
 796     if (a == wxEmptyString) LoadPage(l);
 797     else LoadPage(l + wxT("#") + a);
 798     m_HistoryOn = true;
 799     m_tmpCanDrawLocks--;
 800     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 801     Refresh();
 802     return true;
 803 }
 804
 805 bool wxHtmlWindow::HistoryCanForward()
 806 {
 807     if (m_HistoryPos == -1) return false;
 808     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 809     return true ;
 810 }
 811
 812
 813 void wxHtmlWindow::HistoryClear()
 814 {
 815     m_History->Empty();
 816     m_HistoryPos = -1;
 817 }
 818
 819 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 820 {
 821     if (!m_Processors)
 822     {
 823         m_Processors = new wxHtmlProcessorList;
 824     }
 825     wxHtmlProcessorList::compatibility_iterator node;
 826
 827     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 828     {
 829         if (processor->GetPriority() > node->GetData()->GetPriority())
 830         {
 831             m_Processors->Insert(node, processor);
 832             return;
 833         }
 834     }
 835     m_Processors->Append(processor);
 836 }
 837
 838 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 839 {
 840     if (!m_GlobalProcessors)
 841     {
 842         m_GlobalProcessors = new wxHtmlProcessorList;
 843     }
 844     wxHtmlProcessorList::compatibility_iterator node;
 845
 846     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 847     {
 848         if (processor->GetPriority() > node->GetData()->GetPriority())
 849         {
 850             m_GlobalProcessors->Insert(node, processor);
 851             return;
 852         }
 853     }
 854     m_GlobalProcessors->Append(processor);
 855 }
 856
 857
 858
 859 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 860 {
 861     m_Filters.Append(filter);
 862 }
 863
 864
 865 bool wxHtmlWindow::IsSelectionEnabled() const
 866 {
 867 #if wxUSE_CLIPBOARD
 868     return !HasFlag(wxHW_NO_SELECTION);
 869 #else
 870     return false;
 871 #endif
 872 }
 873
 874
 875 #if wxUSE_CLIPBOARD
 876 wxString wxHtmlWindow::DoSelectionToText(wxHtmlSelection *sel)
 877 {
 878     if ( !sel )
 879         return wxEmptyString;
 880
 881     wxClientDC dc(this);
 882
 883     const wxHtmlCell *end = sel->GetToCell();
 884     wxString text;
 885     wxHtmlTerminalCellsInterator i(sel->GetFromCell(), end);
 886     if ( i )
 887     {
 888         text << i->ConvertToText(sel);
 889         ++i;
 890     }
 891     const wxHtmlCell *prev = *i;
 892     while ( i )
 893     {
 894         if ( prev->GetParent() != i->GetParent() )
 895             text << _T('\n');
 896         text << i->ConvertToText(*i == end ? sel : NULL);
 897         prev = *i;
 898         ++i;
 899     }
 900     return text;
 901 }
 902
 903 wxString wxHtmlWindow::ToText()
 904 {
 905     if (m_Cell)
 906     {
 907         wxHtmlSelection sel;
 908         sel.Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
 909         return DoSelectionToText(&sel);
 910     }
 911     else
 912         return wxEmptyString;
 913 }
 914
 915 #endif // wxUSE_CLIPBOARD
 916
 917 bool wxHtmlWindow::CopySelection(ClipboardType t)
 918 {
 919 #if wxUSE_CLIPBOARD
 920     if ( m_selection )
 921     {
 922 #if defined(__UNIX__) && !defined(__WXMAC__)
 923         wxTheClipboard->UsePrimarySelection(t == Primary);
 924 #else // !__UNIX__
 925         // Primary selection exists only under X11, so don't do anything under
 926         // the other platforms when we try to access it
 927         //
 928         // TODO: this should be abstracted at wxClipboard level!
 929         if ( t == Primary )
 930             return false;
 931 #endif // __UNIX__/!__UNIX__
 932
 933         if ( wxTheClipboard->Open() )
 934         {
 935             const wxString txt(SelectionToText());
 936             wxTheClipboard->SetData(new wxTextDataObject(txt));
 937             wxTheClipboard->Close();
 938             wxLogTrace(_T("wxhtmlselection"),
 939                        _("Copied to clipboard:\"%s\""), txt.c_str());
 940
 941             return true;
 942         }
 943     }
 944 #else
 945     wxUnusedVar(t);
 946 #endif // wxUSE_CLIPBOARD
 947
 948     return false;
 949 }
 950
 951
 952 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 953 {
 954     wxHtmlLinkEvent event(GetId(), link);
 955     event.SetEventObject(this);
 956     if (!GetEventHandler()->ProcessEvent(event))
 957     {
 958         // the default behaviour is to load the URL in this window
 959         const wxMouseEvent *e = event.GetLinkInfo().GetEvent();
 960         if (e == NULL || e->LeftUp())
 961             LoadPage(event.GetLinkInfo().GetHref());
 962     }
 963 }
 964
 965 void wxHtmlWindow::OnEraseBackground(wxEraseEvent& event)
 966 {
 967     if ( !m_bmpBg.Ok() )
 968     {
 969         // don't even skip the event, if we don't have a bg bitmap we're going
 970         // to overwrite background in OnPaint() below anyhow, so letting the
 971         // default handling take place would only result in flicker, just set a
 972         // flag to erase the background below
 973         m_eraseBgInOnPaint = true;
 974         return;
 975     }
 976
 977     wxDC& dc = *event.GetDC();
 978
 979     // if the image is not fully opaque, we have to erase the background before
 980     // drawing it, however avoid doing it for opaque images as this would just
 981     // result in extra flicker without any other effect as background is
 982     // completely covered anyhow
 983     if ( m_bmpBg.GetMask() )
 984     {
 985         dc.SetBackground(wxBrush(GetBackgroundColour(), wxBRUSHSTYLE_SOLID));
 986         dc.Clear();
 987     }
 988
 989     const wxSize sizeWin(GetClientSize());
 990     const wxSize sizeBmp(m_bmpBg.GetWidth(), m_bmpBg.GetHeight());
 991     for ( wxCoord x = 0; x < sizeWin.x; x += sizeBmp.x )
 992     {
 993         for ( wxCoord y = 0; y < sizeWin.y; y += sizeBmp.y )
 994         {
 995             dc.DrawBitmap(m_bmpBg, x, y, true /* use mask */);
 996         }
 997     }
 998 }
 999
1000 void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
1001 {
1002     wxPaintDC dc(this);
1003
1004     if (m_tmpCanDrawLocks > 0 || m_Cell == NULL)
1005         return;
1006
1007     int x, y;
1008     GetViewStart(&x, &y);
1009     wxRect rect = GetUpdateRegion().GetBox();
1010     wxSize sz = GetSize();
1011
1012     wxMemoryDC dcm;
1013     if ( !m_backBuffer )
1014         m_backBuffer = new wxBitmap(sz.x, sz.y);
1015     dcm.SelectObject(*m_backBuffer);
1016
1017     if ( m_eraseBgInOnPaint )
1018     {
1019         dcm.SetBackground(wxBrush(GetBackgroundColour(), wxBRUSHSTYLE_SOLID));
1020         dcm.Clear();
1021
1022         m_eraseBgInOnPaint = false;
1023     }
1024     else // someone has already erased the background, keep it
1025     {
1026         // preserve the existing background, otherwise we'd erase anything the
1027         // user code had drawn in its EVT_ERASE_BACKGROUND handler when we do
1028         // the Blit back below
1029         dcm.Blit(0, rect.GetTop(),
1030                  sz.x, rect.GetBottom() - rect.GetTop() + 1,
1031                  &dc,
1032                  0, rect.GetTop());
1033     }
1034
1035     PrepareDC(dcm);
1036     dcm.SetMapMode(wxMM_TEXT);
1037     dcm.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
1038
1039     wxHtmlRenderingInfo rinfo;
1040     wxDefaultHtmlRenderingStyle rstyle;
1041     rinfo.SetSelection(m_selection);
1042     rinfo.SetStyle(&rstyle);
1043     m_Cell->Draw(dcm, 0, 0,
1044                  y * wxHTML_SCROLL_STEP + rect.GetTop(),
1045                  y * wxHTML_SCROLL_STEP + rect.GetBottom(),
1046                  rinfo);
1047
1048 //#define DEBUG_HTML_SELECTION
1049 #ifdef DEBUG_HTML_SELECTION
1050     {
1051     int xc, yc, x, y;
1052     wxGetMousePosition(&xc, &yc);
1053     ScreenToClient(&xc, &yc);
1054     CalcUnscrolledPosition(xc, yc, &x, &y);
1055     wxHtmlCell *at = m_Cell->FindCellByPos(x, y);
1056     wxHtmlCell *before =
1057         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_BEFORE);
1058     wxHtmlCell *after =
1059         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_AFTER);
1060
1061     dcm.SetBrush(*wxTRANSPARENT_BRUSH);
1062     dcm.SetPen(*wxBLACK_PEN);
1063     if (at)
1064         dcm.DrawRectangle(at->GetAbsPos(),
1065                           wxSize(at->GetWidth(),at->GetHeight()));
1066     dcm.SetPen(*wxGREEN_PEN);
1067     if (before)
1068         dcm.DrawRectangle(before->GetAbsPos().x+1, before->GetAbsPos().y+1,
1069                           before->GetWidth()-2,before->GetHeight()-2);
1070     dcm.SetPen(*wxRED_PEN);
1071     if (after)
1072         dcm.DrawRectangle(after->GetAbsPos().x+2, after->GetAbsPos().y+2,
1073                           after->GetWidth()-4,after->GetHeight()-4);
1074     }
1075 #endif
1076
1077     dcm.SetDeviceOrigin(0,0);
1078     dc.Blit(0, rect.GetTop(),
1079             sz.x, rect.GetBottom() - rect.GetTop() + 1,
1080             &dcm,
1081             0, rect.GetTop());
1082 }
1083
1084
1085
1086
1087 void wxHtmlWindow::OnSize(wxSizeEvent& event)
1088 {
1089     wxDELETE(m_backBuffer);
1090
1091     wxScrolledWindow::OnSize(event);
1092     CreateLayout();
1093
1094     // Recompute selection if necessary:
1095     if ( m_selection )
1096     {
1097         m_selection->Set(m_selection->GetFromCell(),
1098                          m_selection->GetToCell());
1099         m_selection->ClearPrivPos();
1100     }
1101
1102     Refresh();
1103 }
1104
1105
1106 void wxHtmlWindow::OnMouseMove(wxMouseEvent& WXUNUSED(event))
1107 {
1108     wxHtmlWindowMouseHelper::HandleMouseMoved();
1109 }
1110
1111 void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
1112 {
1113 #if wxUSE_CLIPBOARD
1114     if ( event.LeftDown() && IsSelectionEnabled() )
1115     {
1116         const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
1117         if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
1118         {
1119             SelectLine(CalcUnscrolledPosition(event.GetPosition()));
1120
1121             (void) CopySelection();
1122         }
1123         else
1124         {
1125             m_makingSelection = true;
1126
1127             if ( m_selection )
1128             {
1129                 wxDELETE(m_selection);
1130                 Refresh();
1131             }
1132             m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
1133             m_tmpSelFromCell = NULL;
1134
1135             CaptureMouse();
1136         }
1137     }
1138 #endif // wxUSE_CLIPBOARD
1139
1140     // in any case, let the default handler set focus to this window
1141     event.Skip();
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         // if m_selection=NULL, the user didn't move the mouse far enough from
1153         // starting point and the mouse up event is part of a click, the user
1154         // is not selecting text:
1155         if ( m_selection )
1156         {
1157             CopySelection(Primary);
1158
1159             // we don't want mouse up event that ended selecting to be
1160             // handled as mouse click and e.g. follow hyperlink:
1161             return;
1162         }
1163     }
1164 #endif // wxUSE_CLIPBOARD
1165
1166     wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
1167     wxHtmlWindowMouseHelper::HandleMouseClick(m_Cell, pos, event);
1168 }
1169
1170 #if wxUSE_CLIPBOARD
1171 void wxHtmlWindow::OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
1172 {
1173     if ( !m_makingSelection )
1174         return;
1175
1176     // discard the selecting operation
1177     m_makingSelection = false;
1178     wxDELETE(m_selection);
1179     m_tmpSelFromCell = NULL;
1180     Refresh();
1181 }
1182 #endif // wxUSE_CLIPBOARD
1183
1184
1185 void wxHtmlWindow::OnInternalIdle()
1186 {
1187     wxWindow::OnInternalIdle();
1188
1189     if (m_Cell != NULL && DidMouseMove())
1190     {
1191 #ifdef DEBUG_HTML_SELECTION
1192         Refresh();
1193 #endif
1194         int xc, yc, x, y;
1195         wxGetMousePosition(&xc, &yc);
1196         ScreenToClient(&xc, &yc);
1197         CalcUnscrolledPosition(xc, yc, &x, &y);
1198
1199         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
1200
1201         // handle selection update:
1202         if ( m_makingSelection )
1203         {
1204             if ( !m_tmpSelFromCell )
1205                 m_tmpSelFromCell = m_Cell->FindCellByPos(
1206                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y);
1207
1208             // NB: a trick - we adjust selFromPos to be upper left or bottom
1209             //     right corner of the first cell of the selection depending
1210             //     on whether the mouse is moving to the right or to the left.
1211             //     This gives us more "natural" behaviour when selecting
1212             //     a line (specifically, first cell of the next line is not
1213             //     included if you drag selection from left to right over
1214             //     entire line):
1215             wxPoint dirFromPos;
1216             if ( !m_tmpSelFromCell )
1217             {
1218                 dirFromPos = m_tmpSelFromPos;
1219             }
1220             else
1221             {
1222                 dirFromPos = m_tmpSelFromCell->GetAbsPos();
1223                 if ( x < m_tmpSelFromPos.x )
1224                 {
1225                     dirFromPos.x += m_tmpSelFromCell->GetWidth();
1226                     dirFromPos.y += m_tmpSelFromCell->GetHeight();
1227                 }
1228             }
1229             bool goingDown = dirFromPos.y < y ||
1230                              (dirFromPos.y == y && dirFromPos.x < x);
1231
1232             // determine selection span:
1233             if ( /*still*/ !m_tmpSelFromCell )
1234             {
1235                 if (goingDown)
1236                 {
1237                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1238                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1239                                          wxHTML_FIND_NEAREST_AFTER);
1240                     if (!m_tmpSelFromCell)
1241                         m_tmpSelFromCell = m_Cell->GetFirstTerminal();
1242                 }
1243                 else
1244                 {
1245                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1246                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1247                                          wxHTML_FIND_NEAREST_BEFORE);
1248                     if (!m_tmpSelFromCell)
1249                         m_tmpSelFromCell = m_Cell->GetLastTerminal();
1250                 }
1251             }
1252
1253             wxHtmlCell *selcell = cell;
1254             if (!selcell)
1255             {
1256                 if (goingDown)
1257                 {
1258                     selcell = m_Cell->FindCellByPos(x, y,
1259                                                  wxHTML_FIND_NEAREST_BEFORE);
1260                     if (!selcell)
1261                         selcell = m_Cell->GetLastTerminal();
1262                 }
1263                 else
1264                 {
1265                     selcell = m_Cell->FindCellByPos(x, y,
1266                                                  wxHTML_FIND_NEAREST_AFTER);
1267                     if (!selcell)
1268                         selcell = m_Cell->GetFirstTerminal();
1269                 }
1270             }
1271
1272             // NB: it may *rarely* happen that the code above didn't find one
1273             //     of the cells, e.g. if wxHtmlWindow doesn't contain any
1274             //     visible cells.
1275             if ( selcell && m_tmpSelFromCell )
1276             {
1277                 if ( !m_selection )
1278                 {
1279                     // start selecting only if mouse movement was big enough
1280                     // (otherwise it was meant as mouse click, not selection):
1281                     const int PRECISION = 2;
1282                     wxPoint diff = m_tmpSelFromPos - wxPoint(x,y);
1283                     if (abs(diff.x) > PRECISION || abs(diff.y) > PRECISION)
1284                     {
1285                         m_selection = new wxHtmlSelection();
1286                     }
1287                 }
1288                 if ( m_selection )
1289                 {
1290                     if ( m_tmpSelFromCell->IsBefore(selcell) )
1291                     {
1292                         m_selection->Set(m_tmpSelFromPos, m_tmpSelFromCell,
1293                                          wxPoint(x,y), selcell);
1294                     }
1295                     else
1296                     {
1297                         m_selection->Set(wxPoint(x,y), selcell,
1298                                          m_tmpSelFromPos, m_tmpSelFromCell);
1299                     }
1300                     m_selection->ClearPrivPos();
1301                     Refresh();
1302                 }
1303             }
1304         }
1305
1306         // handle cursor and status bar text changes:
1307
1308         // NB: because we're passing in 'cell' and not 'm_Cell' (so that the
1309         //     leaf cell lookup isn't done twice), we need to adjust the
1310         //     position for the new root:
1311         wxPoint posInCell(x, y);
1312         if (cell)
1313             posInCell -= cell->GetAbsPos();
1314         wxHtmlWindowMouseHelper::HandleIdle(cell, posInCell);
1315     }
1316 }
1317
1318 #if wxUSE_CLIPBOARD
1319 void wxHtmlWindow::StopAutoScrolling()
1320 {
1321     if ( m_timerAutoScroll )
1322     {
1323         wxDELETE(m_timerAutoScroll);
1324     }
1325 }
1326
1327 void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event)
1328 {
1329     StopAutoScrolling();
1330     event.Skip();
1331 }
1332
1333 void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
1334 {
1335     // don't prevent the usual processing of the event from taking place
1336     event.Skip();
1337
1338     // when a captured mouse leave a scrolled window we start generate
1339     // scrolling events to allow, for example, extending selection beyond the
1340     // visible area in some controls
1341     if ( wxWindow::GetCapture() == this )
1342     {
1343         // where is the mouse leaving?
1344         int pos, orient;
1345         wxPoint pt = event.GetPosition();
1346         if ( pt.x < 0 )
1347         {
1348             orient = wxHORIZONTAL;
1349             pos = 0;
1350         }
1351         else if ( pt.y < 0 )
1352         {
1353             orient = wxVERTICAL;
1354             pos = 0;
1355         }
1356         else // we're lower or to the right of the window
1357         {
1358             wxSize size = GetClientSize();
1359             if ( pt.x > size.x )
1360             {
1361                 orient = wxHORIZONTAL;
1362                 pos = GetVirtualSize().x / wxHTML_SCROLL_STEP;
1363             }
1364             else if ( pt.y > size.y )
1365             {
1366                 orient = wxVERTICAL;
1367                 pos = GetVirtualSize().y / wxHTML_SCROLL_STEP;
1368             }
1369             else // this should be impossible
1370             {
1371                 // but seems to happen sometimes under wxMSW - maybe it's a bug
1372                 // there but for now just ignore it
1373
1374                 //wxFAIL_MSG( _T("can't understand where has mouse gone") );
1375
1376                 return;
1377             }
1378         }
1379
1380         // only start the auto scroll timer if the window can be scrolled in
1381         // this direction
1382         if ( !HasScrollbar(orient) )
1383             return;
1384
1385         delete m_timerAutoScroll;
1386         m_timerAutoScroll = new wxHtmlWinAutoScrollTimer
1387                                 (
1388                                     this,
1389                                     pos == 0 ? wxEVT_SCROLLWIN_LINEUP
1390                                              : wxEVT_SCROLLWIN_LINEDOWN,
1391                                     pos,
1392                                     orient
1393                                 );
1394         m_timerAutoScroll->Start(50); // FIXME: make configurable
1395     }
1396 }
1397
1398 void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
1399 {
1400     if ( IsSelectionEnabled() &&
1401             (event.GetKeyCode() == 'C' && event.CmdDown()) )
1402     {
1403         wxClipboardTextEvent evt(wxEVT_COMMAND_TEXT_COPY, GetId());
1404
1405         evt.SetEventObject(this);
1406
1407         GetEventHandler()->ProcessEvent(evt);
1408     }
1409 }
1410
1411 void wxHtmlWindow::OnCopy(wxCommandEvent& WXUNUSED(event))
1412 {
1413     (void) CopySelection();
1414 }
1415
1416 void wxHtmlWindow::OnClipboardEvent(wxClipboardTextEvent& WXUNUSED(event))
1417 {
1418     (void) CopySelection();
1419 }
1420
1421 void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event)
1422 {
1423     // select word under cursor:
1424     if ( IsSelectionEnabled() )
1425     {
1426         SelectWord(CalcUnscrolledPosition(event.GetPosition()));
1427
1428         (void) CopySelection(Primary);
1429
1430         m_lastDoubleClick = wxGetLocalTimeMillis();
1431     }
1432     else
1433         event.Skip();
1434 }
1435
1436 void wxHtmlWindow::SelectWord(const wxPoint& pos)
1437 {
1438     if ( m_Cell )
1439     {
1440         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1441         if ( cell )
1442         {
1443             delete m_selection;
1444             m_selection = new wxHtmlSelection();
1445             m_selection->Set(cell, cell);
1446             RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
1447                                wxSize(cell->GetWidth(), cell->GetHeight())));
1448         }
1449     }
1450 }
1451
1452 void wxHtmlWindow::SelectLine(const wxPoint& pos)
1453 {
1454     if ( m_Cell )
1455     {
1456         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1457         if ( cell )
1458         {
1459             // We use following heuristic to find a "line": let the line be all
1460             // cells in same container as the cell under mouse cursor that are
1461             // neither completely above nor completely bellow the clicked cell
1462             // (i.e. are likely to be words positioned on same line of text).
1463
1464             int y1 = cell->GetAbsPos().y;
1465             int y2 = y1 + cell->GetHeight();
1466             int y;
1467             const wxHtmlCell *c;
1468             const wxHtmlCell *before = NULL;
1469             const wxHtmlCell *after = NULL;
1470
1471             // find last cell of line:
1472             for ( c = cell->GetNext(); c; c = c->GetNext())
1473             {
1474                 y = c->GetAbsPos().y;
1475                 if ( y + c->GetHeight() > y1 && y < y2 )
1476                     after = c;
1477                 else
1478                     break;
1479             }
1480             if ( !after )
1481                 after = cell;
1482
1483             // find first cell of line:
1484             for ( c = cell->GetParent()->GetFirstChild();
1485                     c && c != cell; c = c->GetNext())
1486             {
1487                 y = c->GetAbsPos().y;
1488                 if ( y + c->GetHeight() > y1 && y < y2 )
1489                 {
1490                     if ( ! before )
1491                         before = c;
1492                 }
1493                 else
1494                     before = NULL;
1495             }
1496             if ( !before )
1497                 before = cell;
1498
1499             delete m_selection;
1500             m_selection = new wxHtmlSelection();
1501             m_selection->Set(before, after);
1502
1503             Refresh();
1504         }
1505     }
1506 }
1507
1508 void wxHtmlWindow::SelectAll()
1509 {
1510     if ( m_Cell )
1511     {
1512         delete m_selection;
1513         m_selection = new wxHtmlSelection();
1514         m_selection->Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
1515         Refresh();
1516     }
1517 }
1518
1519 #endif // wxUSE_CLIPBOARD
1520
1521
1522
1523 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
1524
1525 #if wxUSE_EXTENDED_RTTI
1526 IMPLEMENT_DYNAMIC_CLASS_XTI(wxHtmlWindow, wxScrolledWindow,"wx/html/htmlwin.h")
1527
1528 wxBEGIN_PROPERTIES_TABLE(wxHtmlWindow)
1529 /*
1530     TODO PROPERTIES
1531         style , wxHW_SCROLLBAR_AUTO
1532         borders , (dimension)
1533         url , string
1534         htmlcode , string
1535 */
1536 wxEND_PROPERTIES_TABLE()
1537
1538 wxBEGIN_HANDLERS_TABLE(wxHtmlWindow)
1539 wxEND_HANDLERS_TABLE()
1540
1541 wxCONSTRUCTOR_5( wxHtmlWindow , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
1542 #else
1543 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
1544 #endif
1545
1546 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
1547     EVT_SIZE(wxHtmlWindow::OnSize)
1548     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseDown)
1549     EVT_LEFT_UP(wxHtmlWindow::OnMouseUp)
1550     EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp)
1551     EVT_MOTION(wxHtmlWindow::OnMouseMove)
1552     EVT_ERASE_BACKGROUND(wxHtmlWindow::OnEraseBackground)
1553     EVT_PAINT(wxHtmlWindow::OnPaint)
1554 #if wxUSE_CLIPBOARD
1555     EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick)
1556     EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter)
1557     EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave)
1558     EVT_MOUSE_CAPTURE_LOST(wxHtmlWindow::OnMouseCaptureLost)
1559     EVT_KEY_UP(wxHtmlWindow::OnKeyUp)
1560     EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy)
1561     EVT_TEXT_COPY(wxID_ANY, wxHtmlWindow::OnClipboardEvent)
1562 #endif // wxUSE_CLIPBOARD
1563 END_EVENT_TABLE()
1564
1565 //-----------------------------------------------------------------------------
1566 // wxHtmlWindowInterface implementation in wxHtmlWindow
1567 //-----------------------------------------------------------------------------
1568
1569 void wxHtmlWindow::SetHTMLWindowTitle(const wxString& title)
1570 {
1571     OnSetTitle(title);
1572 }
1573
1574 void wxHtmlWindow::OnHTMLLinkClicked(const wxHtmlLinkInfo& link)
1575 {
1576     OnLinkClicked(link);
1577 }
1578
1579 wxHtmlOpeningStatus wxHtmlWindow::OnHTMLOpeningURL(wxHtmlURLType type,
1580                                                    const wxString& url,
1581                                                    wxString *redirect) const
1582 {
1583     return OnOpeningURL(type, url, redirect);
1584 }
1585
1586 wxPoint wxHtmlWindow::HTMLCoordsToWindow(wxHtmlCell *WXUNUSED(cell),
1587                                          const wxPoint& pos) const
1588 {
1589     return CalcScrolledPosition(pos);
1590 }
1591
1592 wxWindow* wxHtmlWindow::GetHTMLWindow()
1593 {
1594     return this;
1595 }
1596
1597 wxColour wxHtmlWindow::GetHTMLBackgroundColour() const
1598 {
1599     return GetBackgroundColour();
1600 }
1601
1602 void wxHtmlWindow::SetHTMLBackgroundColour(const wxColour& clr)
1603 {
1604     SetBackgroundColour(clr);
1605 }
1606
1607 void wxHtmlWindow::SetHTMLBackgroundImage(const wxBitmap& bmpBg)
1608 {
1609     SetBackgroundImage(bmpBg);
1610 }
1611
1612 void wxHtmlWindow::SetHTMLStatusText(const wxString& text)
1613 {
1614 #if wxUSE_STATUSBAR
1615     if (m_RelatedStatusBar != -1)
1616         m_RelatedFrame->SetStatusText(text, m_RelatedStatusBar);
1617 #else
1618     wxUnusedVar(text);
1619 #endif // wxUSE_STATUSBAR
1620 }
1621
1622 /*static*/
1623 wxCursor wxHtmlWindow::GetDefaultHTMLCursor(HTMLCursor type)
1624 {
1625     switch (type)
1626     {
1627         case HTMLCursor_Link:
1628             if ( !ms_cursorLink )
1629                 ms_cursorLink = new wxCursor(wxCURSOR_HAND);
1630             return *ms_cursorLink;
1631
1632         case HTMLCursor_Text:
1633             if ( !ms_cursorText )
1634                 ms_cursorText = new wxCursor(wxCURSOR_IBEAM);
1635             return *ms_cursorText;
1636
1637         case HTMLCursor_Default:
1638         default:
1639             return *wxSTANDARD_CURSOR;
1640     }
1641 }
1642
1643 wxCursor wxHtmlWindow::GetHTMLCursor(HTMLCursor type) const
1644 {
1645     return GetDefaultHTMLCursor(type);
1646 }
1647
1648
1649 //-----------------------------------------------------------------------------
1650 // wxHtmlWinModule
1651 //-----------------------------------------------------------------------------
1652
1653 // A module to allow initialization/cleanup
1654 // without calling these functions from app.cpp or from
1655 // the user's application.
1656
1657 class wxHtmlWinModule: public wxModule
1658 {
1659 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
1660 public:
1661     wxHtmlWinModule() : wxModule() {}
1662     bool OnInit() { return true; }
1663     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
1664 };
1665
1666 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
1667
1668
1669 // This hack forces the linker to always link in m_* files
1670 // (wxHTML doesn't work without handlers from these files)
1671 #include "wx/html/forcelnk.h"
1672 FORCE_WXHTML_MODULES()
1673
1674 #endif // wxUSE_HTML