src/html/htmlwin.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/html/htmlwin.cpp
   3 // Purpose:     wxHtmlWindow class for parsing & displaying HTML (implementation)
   4 // Author:      Vaclav Slavik
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1999 Vaclav Slavik
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #include "wx/wxprec.h"
  11
  12 #ifdef __BORLANDC__
  13     #pragma hdrstop
  14 #endif
  15
  16 #if wxUSE_HTML && wxUSE_STREAMS
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/list.h"
  20     #include "wx/log.h"
  21     #include "wx/intl.h"
  22     #include "wx/dcclient.h"
  23     #include "wx/frame.h"
  24     #include "wx/dcmemory.h"
  25     #include "wx/timer.h"
  26     #include "wx/settings.h"
  27     #include "wx/dataobj.h"
  28     #include "wx/statusbr.h"
  29 #endif
  30
  31 #include "wx/html/htmlwin.h"
  32 #include "wx/html/htmlproc.h"
  33 #include "wx/clipbrd.h"
  34
  35 #include "wx/arrimpl.cpp"
  36 #include "wx/listimpl.cpp"
  37
  38 // HTML events:
  39 IMPLEMENT_DYNAMIC_CLASS(wxHtmlLinkEvent, wxCommandEvent)
  40 IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellEvent, wxCommandEvent)
  41
  42 wxDEFINE_EVENT( wxEVT_COMMAND_HTML_CELL_CLICKED, wxHtmlCellEvent );
  43 wxDEFINE_EVENT( wxEVT_COMMAND_HTML_CELL_HOVER, wxHtmlCellEvent );
  44 wxDEFINE_EVENT( wxEVT_COMMAND_HTML_LINK_CLICKED, wxHtmlLinkEvent );
  45
  46
  47 #if wxUSE_CLIPBOARD
  48 // ----------------------------------------------------------------------------
  49 // wxHtmlWinAutoScrollTimer: the timer used to generate a stream of scroll
  50 // events when a captured mouse is held outside the window
  51 // ----------------------------------------------------------------------------
  52
  53 class wxHtmlWinAutoScrollTimer : public wxTimer
  54 {
  55 public:
  56     wxHtmlWinAutoScrollTimer(wxScrolledWindow *win,
  57                       wxEventType eventTypeToSend,
  58                       int pos, int orient)
  59     {
  60         m_win = win;
  61         m_eventType = eventTypeToSend;
  62         m_pos = pos;
  63         m_orient = orient;
  64     }
  65
  66     virtual void Notify();
  67
  68 private:
  69     wxScrolledWindow *m_win;
  70     wxEventType m_eventType;
  71     int m_pos,
  72         m_orient;
  73
  74     wxDECLARE_NO_COPY_CLASS(wxHtmlWinAutoScrollTimer);
  75 };
  76
  77 void wxHtmlWinAutoScrollTimer::Notify()
  78 {
  79     // only do all this as long as the window is capturing the mouse
  80     if ( wxWindow::GetCapture() != m_win )
  81     {
  82         Stop();
  83     }
  84     else // we still capture the mouse, continue generating events
  85     {
  86         // first scroll the window if we are allowed to do it
  87         wxScrollWinEvent event1(m_eventType, m_pos, m_orient);
  88         event1.SetEventObject(m_win);
  89         if ( m_win->GetEventHandler()->ProcessEvent(event1) )
  90         {
  91             // and then send a pseudo mouse-move event to refresh the selection
  92             wxMouseEvent event2(wxEVT_MOTION);
  93             wxGetMousePosition(&event2.m_x, &event2.m_y);
  94
  95             // the mouse event coordinates should be client, not screen as
  96             // returned by wxGetMousePosition
  97             wxWindow *parentTop = m_win;
  98             while ( parentTop->GetParent() )
  99                 parentTop = parentTop->GetParent();
 100             wxPoint ptOrig = parentTop->GetPosition();
 101             event2.m_x -= ptOrig.x;
 102             event2.m_y -= ptOrig.y;
 103
 104             event2.SetEventObject(m_win);
 105
 106             // FIXME: we don't fill in the other members - ok?
 107             m_win->GetEventHandler()->ProcessEvent(event2);
 108         }
 109         else // can't scroll further, stop
 110         {
 111             Stop();
 112         }
 113     }
 114 }
 115
 116 #endif // wxUSE_CLIPBOARD
 117
 118
 119
 120 //-----------------------------------------------------------------------------
 121 // wxHtmlHistoryItem
 122 //-----------------------------------------------------------------------------
 123
 124 // item of history list
 125 class WXDLLIMPEXP_HTML wxHtmlHistoryItem
 126 {
 127 public:
 128     wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
 129     int GetPos() const {return m_Pos;}
 130     void SetPos(int p) {m_Pos = p;}
 131     const wxString& GetPage() const {return m_Page;}
 132     const wxString& GetAnchor() const {return m_Anchor;}
 133
 134 private:
 135     wxString m_Page;
 136     wxString m_Anchor;
 137     int m_Pos;
 138 };
 139
 140
 141 //-----------------------------------------------------------------------------
 142 // our private arrays:
 143 //-----------------------------------------------------------------------------
 144
 145 WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
 146 WX_DEFINE_OBJARRAY(wxHtmlHistoryArray)
 147
 148 WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
 149 WX_DEFINE_LIST(wxHtmlProcessorList)
 150
 151 //-----------------------------------------------------------------------------
 152 // wxHtmlWindowMouseHelper
 153 //-----------------------------------------------------------------------------
 154
 155 wxHtmlWindowMouseHelper::wxHtmlWindowMouseHelper(wxHtmlWindowInterface *iface)
 156     : m_tmpMouseMoved(false),
 157       m_tmpLastLink(NULL),
 158       m_tmpLastCell(NULL),
 159       m_interface(iface)
 160 {
 161 }
 162
 163 void wxHtmlWindowMouseHelper::HandleMouseMoved()
 164 {
 165     m_tmpMouseMoved = true;
 166 }
 167
 168 bool wxHtmlWindowMouseHelper::HandleMouseClick(wxHtmlCell *rootCell,
 169                                                const wxPoint& pos,
 170                                                const wxMouseEvent& event)
 171 {
 172     if (!rootCell)
 173         return false;
 174
 175     wxHtmlCell *cell = rootCell->FindCellByPos(pos.x, pos.y);
 176     // this check is needed because FindCellByPos returns terminal cell and
 177     // containers may have empty borders -- in this case NULL will be
 178     // returned
 179     if (!cell)
 180         return false;
 181
 182     // adjust the coordinates to be relative to this cell:
 183     wxPoint relpos = pos - cell->GetAbsPos(rootCell);
 184
 185     return OnCellClicked(cell, relpos.x, relpos.y, event);
 186 }
 187
 188 void wxHtmlWindowMouseHelper::HandleIdle(wxHtmlCell *rootCell,
 189                                          const wxPoint& pos)
 190 {
 191     wxHtmlCell *cell = rootCell ? rootCell->FindCellByPos(pos.x, pos.y) : NULL;
 192
 193     if (cell != m_tmpLastCell)
 194     {
 195         wxHtmlLinkInfo *lnk = NULL;
 196         if (cell)
 197         {
 198             // adjust the coordinates to be relative to this cell:
 199             wxPoint relpos = pos - cell->GetAbsPos(rootCell);
 200             lnk = cell->GetLink(relpos.x, relpos.y);
 201         }
 202
 203         wxCursor cur;
 204         if (cell)
 205             cur = cell->GetMouseCursor(m_interface);
 206         else
 207             cur = m_interface->GetHTMLCursor(
 208                         wxHtmlWindowInterface::HTMLCursor_Default);
 209
 210         m_interface->GetHTMLWindow()->SetCursor(cur);
 211
 212         if (lnk != m_tmpLastLink)
 213         {
 214             if (lnk)
 215                 m_interface->SetHTMLStatusText(lnk->GetHref());
 216             else
 217                 m_interface->SetHTMLStatusText(wxEmptyString);
 218
 219             m_tmpLastLink = lnk;
 220         }
 221
 222         m_tmpLastCell = cell;
 223     }
 224     else // mouse moved but stayed in the same cell
 225     {
 226         if ( cell )
 227         {
 228             OnCellMouseHover(cell, pos.x, pos.y);
 229         }
 230     }
 231
 232     m_tmpMouseMoved = false;
 233 }
 234
 235 bool wxHtmlWindowMouseHelper::OnCellClicked(wxHtmlCell *cell,
 236                                             wxCoord x, wxCoord y,
 237                                             const wxMouseEvent& event)
 238 {
 239     wxHtmlCellEvent ev(wxEVT_COMMAND_HTML_CELL_CLICKED,
 240                        m_interface->GetHTMLWindow()->GetId(),
 241                        cell, wxPoint(x,y), event);
 242
 243     if (!m_interface->GetHTMLWindow()->GetEventHandler()->ProcessEvent(ev))
 244     {
 245         // if the event wasn't handled, do the default processing here:
 246
 247         wxASSERT_MSG( cell, _T("can't be called with NULL cell") );
 248
 249         cell->ProcessMouseClick(m_interface, ev.GetPoint(), ev.GetMouseEvent());
 250     }
 251
 252     // true if a link was clicked, false otherwise
 253     return ev.GetLinkClicked();
 254 }
 255
 256 void wxHtmlWindowMouseHelper::OnCellMouseHover(wxHtmlCell * cell,
 257                                                wxCoord x,
 258                                                wxCoord y)
 259 {
 260     wxHtmlCellEvent ev(wxEVT_COMMAND_HTML_CELL_HOVER,
 261                        m_interface->GetHTMLWindow()->GetId(),
 262                        cell, wxPoint(x,y), wxMouseEvent());
 263     m_interface->GetHTMLWindow()->GetEventHandler()->ProcessEvent(ev);
 264 }
 265
 266
 267
 268
 269 //-----------------------------------------------------------------------------
 270 // wxHtmlWindow
 271 //-----------------------------------------------------------------------------
 272
 273 wxList wxHtmlWindow::m_Filters;
 274 wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
 275 wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
 276 wxCursor *wxHtmlWindow::ms_cursorLink = NULL;
 277 wxCursor *wxHtmlWindow::ms_cursorText = NULL;
 278
 279 void wxHtmlWindow::CleanUpStatics()
 280 {
 281     wxDELETE(m_DefaultFilter);
 282     WX_CLEAR_LIST(wxList, m_Filters);
 283     if (m_GlobalProcessors)
 284         WX_CLEAR_LIST(wxHtmlProcessorList, *m_GlobalProcessors);
 285     wxDELETE(m_GlobalProcessors);
 286     wxDELETE(ms_cursorLink);
 287     wxDELETE(ms_cursorText);
 288 }
 289
 290 void wxHtmlWindow::Init()
 291 {
 292     m_tmpCanDrawLocks = 0;
 293     m_FS = new wxFileSystem();
 294 #if wxUSE_STATUSBAR
 295     m_RelatedStatusBar = NULL;
 296     m_RelatedStatusBarIndex = -1;
 297 #endif // wxUSE_STATUSBAR
 298     m_RelatedFrame = NULL;
 299     m_TitleFormat = wxT("%s");
 300     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 301     m_Cell = NULL;
 302     m_Parser = new wxHtmlWinParser(this);
 303     m_Parser->SetFS(m_FS);
 304     m_HistoryPos = -1;
 305     m_HistoryOn = true;
 306     m_History = new wxHtmlHistoryArray;
 307     m_Processors = NULL;
 308     SetBorders(10);
 309     m_selection = NULL;
 310     m_makingSelection = false;
 311 #if wxUSE_CLIPBOARD
 312     m_timerAutoScroll = NULL;
 313     m_lastDoubleClick = 0;
 314 #endif // wxUSE_CLIPBOARD
 315     m_backBuffer = NULL;
 316     m_eraseBgInOnPaint = false;
 317     m_tmpSelFromCell = NULL;
 318 }
 319
 320 bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
 321                           const wxPoint& pos, const wxSize& size,
 322                           long style, const wxString& name)
 323 {
 324     if (!wxScrolledWindow::Create(parent, id, pos, size,
 325                                   style | wxVSCROLL | wxHSCROLL,
 326                                   name))
 327         return false;
 328
 329     SetPage(wxT("<html><body></body></html>"));
 330     return true;
 331 }
 332
 333
 334 wxHtmlWindow::~wxHtmlWindow()
 335 {
 336 #if wxUSE_CLIPBOARD
 337     StopAutoScrolling();
 338 #endif // wxUSE_CLIPBOARD
 339     HistoryClear();
 340
 341     delete m_selection;
 342
 343     delete m_Cell;
 344
 345     if ( m_Processors )
 346     {
 347         WX_CLEAR_LIST(wxHtmlProcessorList, *m_Processors);
 348     }
 349
 350     delete m_Parser;
 351     delete m_FS;
 352     delete m_History;
 353     delete m_Processors;
 354     delete m_backBuffer;
 355 }
 356
 357
 358
 359 void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
 360 {
 361     m_RelatedFrame = frame;
 362     m_TitleFormat = format;
 363 }
 364
 365
 366
 367 #if wxUSE_STATUSBAR
 368 void wxHtmlWindow::SetRelatedStatusBar(int index)
 369 {
 370     m_RelatedStatusBarIndex = index;
 371 }
 372
 373 void wxHtmlWindow::SetRelatedStatusBar(wxStatusBar* statusbar, int index)
 374 {
 375     m_RelatedStatusBar =  statusbar;
 376     m_RelatedStatusBarIndex = index;
 377 }
 378
 379 #endif // wxUSE_STATUSBAR
 380
 381
 382
 383 void wxHtmlWindow::SetFonts(const wxString& normal_face, const wxString& fixed_face, const int *sizes)
 384 {
 385     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 386
 387     // re-layout the page after changing fonts:
 388     DoSetPage(*(m_Parser->GetSource()));
 389 }
 390
 391 void wxHtmlWindow::SetStandardFonts(int size,
 392                                     const wxString& normal_face,
 393                                     const wxString& fixed_face)
 394 {
 395     m_Parser->SetStandardFonts(size, normal_face, fixed_face);
 396
 397     // re-layout the page after changing fonts:
 398     DoSetPage(*(m_Parser->GetSource()));
 399 }
 400
 401 bool wxHtmlWindow::SetPage(const wxString& source)
 402 {
 403     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 404     return DoSetPage(source);
 405 }
 406
 407 bool wxHtmlWindow::DoSetPage(const wxString& source)
 408 {
 409     wxString newsrc(source);
 410
 411     wxDELETE(m_selection);
 412
 413     // we will soon delete all the cells, so clear pointers to them:
 414     m_tmpSelFromCell = NULL;
 415
 416     // pass HTML through registered processors:
 417     if (m_Processors || m_GlobalProcessors)
 418     {
 419         wxHtmlProcessorList::compatibility_iterator nodeL, nodeG;
 420         int prL, prG;
 421
 422         if ( m_Processors )
 423             nodeL = m_Processors->GetFirst();
 424         if ( m_GlobalProcessors )
 425             nodeG = m_GlobalProcessors->GetFirst();
 426
 427         // VS: there are two lists, global and local, both of them sorted by
 428         //     priority. Since we have to go through _both_ lists with
 429         //     decreasing priority, we "merge-sort" the lists on-line by
 430         //     processing that one of the two heads that has higher priority
 431         //     in every iteration
 432         while (nodeL || nodeG)
 433         {
 434             prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
 435             prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
 436             if (prL > prG)
 437             {
 438                 if (nodeL->GetData()->IsEnabled())
 439                     newsrc = nodeL->GetData()->Process(newsrc);
 440                 nodeL = nodeL->GetNext();
 441             }
 442             else // prL <= prG
 443             {
 444                 if (nodeG->GetData()->IsEnabled())
 445                     newsrc = nodeG->GetData()->Process(newsrc);
 446                 nodeG = nodeG->GetNext();
 447             }
 448         }
 449     }
 450
 451     // ...and run the parser on it:
 452     wxClientDC *dc = new wxClientDC(this);
 453     dc->SetMapMode(wxMM_TEXT);
 454     SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
 455     SetBackgroundImage(wxNullBitmap);
 456
 457     m_Parser->SetDC(dc);
 458     if (m_Cell)
 459     {
 460         delete m_Cell;
 461         m_Cell = NULL;
 462     }
 463     m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
 464     delete dc;
 465     m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 466     m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
 467     CreateLayout();
 468     if (m_tmpCanDrawLocks == 0)
 469         Refresh();
 470     return true;
 471 }
 472
 473 bool wxHtmlWindow::AppendToPage(const wxString& source)
 474 {
 475     return DoSetPage(*(GetParser()->GetSource()) + source);
 476 }
 477
 478 bool wxHtmlWindow::LoadPage(const wxString& location)
 479 {
 480     wxCHECK_MSG( !location.empty(), false, "location must be non-empty" );
 481
 482     wxBusyCursor busyCursor;
 483
 484     bool rt_val;
 485     bool needs_refresh = false;
 486
 487     m_tmpCanDrawLocks++;
 488     if (m_HistoryOn && (m_HistoryPos != -1))
 489     {
 490         // store scroll position into history item:
 491         int x, y;
 492         GetViewStart(&x, &y);
 493         (*m_History)[m_HistoryPos].SetPos(y);
 494     }
 495
 496     // first check if we're moving to an anchor in the same page
 497     size_t posLocalAnchor = location.Find('#');
 498     if ( posLocalAnchor != wxString::npos && posLocalAnchor != 0 )
 499     {
 500         // check if the part before the anchor is the same as the (either
 501         // relative or absolute) URI of the current page
 502         const wxString beforeAnchor = location.substr(0, posLocalAnchor);
 503         if ( beforeAnchor != m_OpenedPage &&
 504                 m_FS->GetPath() + beforeAnchor != m_OpenedPage )
 505         {
 506             // indicate that we're not moving to a local anchor
 507             posLocalAnchor = wxString::npos;
 508         }
 509     }
 510
 511     if ( posLocalAnchor != wxString::npos )
 512     {
 513         m_tmpCanDrawLocks--;
 514         rt_val = ScrollToAnchor(location.substr(posLocalAnchor + 1));
 515         m_tmpCanDrawLocks++;
 516     }
 517     else // moving to another page
 518     {
 519         needs_refresh = true;
 520 #if wxUSE_STATUSBAR
 521         // load&display it:
 522         if (m_RelatedStatusBarIndex != -1)
 523         {
 524             SetHTMLStatusText(_("Connecting..."));
 525             Refresh(false);
 526         }
 527 #endif // wxUSE_STATUSBAR
 528
 529         wxFSFile *f = m_Parser->OpenURL(wxHTML_URL_PAGE, location);
 530
 531         // try to interpret 'location' as filename instead of URL:
 532         if (f == NULL)
 533         {
 534             wxFileName fn(location);
 535             wxString location2 = wxFileSystem::FileNameToURL(fn);
 536             f = m_Parser->OpenURL(wxHTML_URL_PAGE, location2);
 537         }
 538
 539         if (f == NULL)
 540         {
 541             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 542             m_tmpCanDrawLocks--;
 543             SetHTMLStatusText(wxEmptyString);
 544             return false;
 545         }
 546
 547         else
 548         {
 549             wxList::compatibility_iterator node;
 550             wxString src = wxEmptyString;
 551
 552 #if wxUSE_STATUSBAR
 553             if (m_RelatedStatusBarIndex != -1)
 554             {
 555                 wxString msg = _("Loading : ") + location;
 556                 SetHTMLStatusText(msg);
 557                 Refresh(false);
 558             }
 559 #endif // wxUSE_STATUSBAR
 560
 561             node = m_Filters.GetFirst();
 562             while (node)
 563             {
 564                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 565                 if (h->CanRead(*f))
 566                 {
 567                     src = h->ReadFile(*f);
 568                     break;
 569                 }
 570                 node = node->GetNext();
 571             }
 572             if (src == wxEmptyString)
 573             {
 574                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 575                 src = m_DefaultFilter->ReadFile(*f);
 576             }
 577
 578             m_FS->ChangePathTo(f->GetLocation());
 579             rt_val = SetPage(src);
 580             m_OpenedPage = f->GetLocation();
 581             if (f->GetAnchor() != wxEmptyString)
 582             {
 583                 ScrollToAnchor(f->GetAnchor());
 584             }
 585
 586             delete f;
 587
 588 #if wxUSE_STATUSBAR
 589             if (m_RelatedStatusBarIndex != -1)
 590             {
 591                 SetHTMLStatusText(_("Done"));
 592             }
 593 #endif // wxUSE_STATUSBAR
 594         }
 595     }
 596
 597     if (m_HistoryOn) // add this page to history there:
 598     {
 599         int c = m_History->GetCount() - (m_HistoryPos + 1);
 600
 601         if (m_HistoryPos < 0 ||
 602             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 603             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 604         {
 605             m_HistoryPos++;
 606             for (int i = 0; i < c; i++)
 607                 m_History->RemoveAt(m_HistoryPos);
 608             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 609         }
 610     }
 611
 612     if (m_OpenedPageTitle == wxEmptyString)
 613         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 614
 615     if (needs_refresh)
 616     {
 617         m_tmpCanDrawLocks--;
 618         Refresh();
 619     }
 620     else
 621         m_tmpCanDrawLocks--;
 622
 623     return rt_val;
 624 }
 625
 626
 627 bool wxHtmlWindow::LoadFile(const wxFileName& filename)
 628 {
 629     wxString url = wxFileSystem::FileNameToURL(filename);
 630     return LoadPage(url);
 631 }
 632
 633
 634 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 635 {
 636     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 637     if (!c)
 638     {
 639         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 640         return false;
 641     }
 642     else
 643     {
 644         int y;
 645
 646         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 647         Scroll(-1, y / wxHTML_SCROLL_STEP);
 648         m_OpenedAnchor = anchor;
 649         return true;
 650     }
 651 }
 652
 653
 654 void wxHtmlWindow::OnSetTitle(const wxString& title)
 655 {
 656     if (m_RelatedFrame)
 657     {
 658         wxString tit;
 659         tit.Printf(m_TitleFormat, title.c_str());
 660         m_RelatedFrame->SetTitle(tit);
 661     }
 662     m_OpenedPageTitle = title;
 663 }
 664
 665
 666
 667
 668
 669 void wxHtmlWindow::CreateLayout()
 670 {
 671     int ClientWidth, ClientHeight;
 672
 673     if (!m_Cell) return;
 674
 675     if ( HasFlag(wxHW_SCROLLBAR_NEVER) )
 676     {
 677         SetScrollbars(1, 1, 0, 0); // always off
 678         GetClientSize(&ClientWidth, &ClientHeight);
 679         m_Cell->Layout(ClientWidth);
 680     }
 681     else // !wxHW_SCROLLBAR_NEVER
 682     {
 683         GetClientSize(&ClientWidth, &ClientHeight);
 684         m_Cell->Layout(ClientWidth);
 685         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 686         {
 687             SetScrollbars(
 688                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 689                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 690                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 691                   /*cheat: top-level frag is always container*/);
 692         }
 693         else /* we fit into window, no need for scrollbars */
 694         {
 695             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 696             GetClientSize(&ClientWidth, &ClientHeight);
 697             m_Cell->Layout(ClientWidth); // ...and relayout
 698         }
 699     }
 700 }
 701
 702
 703
 704 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 705 {
 706     wxString oldpath;
 707     wxString tmp;
 708     int p_fontsizes[7];
 709     wxString p_fff, p_ffn;
 710
 711     if (path != wxEmptyString)
 712     {
 713         oldpath = cfg->GetPath();
 714         cfg->SetPath(path);
 715     }
 716
 717     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 718     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 719     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 720     for (int i = 0; i < 7; i++)
 721     {
 722         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 723         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 724     }
 725     SetFonts(p_ffn, p_fff, p_fontsizes);
 726
 727     if (path != wxEmptyString)
 728         cfg->SetPath(oldpath);
 729 }
 730
 731
 732
 733 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 734 {
 735     wxString oldpath;
 736     wxString tmp;
 737
 738     if (path != wxEmptyString)
 739     {
 740         oldpath = cfg->GetPath();
 741         cfg->SetPath(path);
 742     }
 743
 744     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 745     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 746     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 747     for (int i = 0; i < 7; i++)
 748     {
 749         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 750         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 751     }
 752
 753     if (path != wxEmptyString)
 754         cfg->SetPath(oldpath);
 755 }
 756
 757
 758
 759 bool wxHtmlWindow::HistoryBack()
 760 {
 761     wxString a, l;
 762
 763     if (m_HistoryPos < 1) return false;
 764
 765     // store scroll position into history item:
 766     int x, y;
 767     GetViewStart(&x, &y);
 768     (*m_History)[m_HistoryPos].SetPos(y);
 769
 770     // go to previous position:
 771     m_HistoryPos--;
 772
 773     l = (*m_History)[m_HistoryPos].GetPage();
 774     a = (*m_History)[m_HistoryPos].GetAnchor();
 775     m_HistoryOn = false;
 776     m_tmpCanDrawLocks++;
 777     if (a == wxEmptyString) LoadPage(l);
 778     else LoadPage(l + wxT("#") + a);
 779     m_HistoryOn = true;
 780     m_tmpCanDrawLocks--;
 781     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 782     Refresh();
 783     return true;
 784 }
 785
 786 bool wxHtmlWindow::HistoryCanBack()
 787 {
 788     if (m_HistoryPos < 1) return false;
 789     return true ;
 790 }
 791
 792
 793 bool wxHtmlWindow::HistoryForward()
 794 {
 795     wxString a, l;
 796
 797     if (m_HistoryPos == -1) return false;
 798     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 799
 800     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 801
 802     m_HistoryPos++;
 803     l = (*m_History)[m_HistoryPos].GetPage();
 804     a = (*m_History)[m_HistoryPos].GetAnchor();
 805     m_HistoryOn = false;
 806     m_tmpCanDrawLocks++;
 807     if (a == wxEmptyString) LoadPage(l);
 808     else LoadPage(l + wxT("#") + a);
 809     m_HistoryOn = true;
 810     m_tmpCanDrawLocks--;
 811     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 812     Refresh();
 813     return true;
 814 }
 815
 816 bool wxHtmlWindow::HistoryCanForward()
 817 {
 818     if (m_HistoryPos == -1) return false;
 819     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 820     return true ;
 821 }
 822
 823
 824 void wxHtmlWindow::HistoryClear()
 825 {
 826     m_History->Empty();
 827     m_HistoryPos = -1;
 828 }
 829
 830 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 831 {
 832     if (!m_Processors)
 833     {
 834         m_Processors = new wxHtmlProcessorList;
 835     }
 836     wxHtmlProcessorList::compatibility_iterator node;
 837
 838     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 839     {
 840         if (processor->GetPriority() > node->GetData()->GetPriority())
 841         {
 842             m_Processors->Insert(node, processor);
 843             return;
 844         }
 845     }
 846     m_Processors->Append(processor);
 847 }
 848
 849 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 850 {
 851     if (!m_GlobalProcessors)
 852     {
 853         m_GlobalProcessors = new wxHtmlProcessorList;
 854     }
 855     wxHtmlProcessorList::compatibility_iterator node;
 856
 857     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 858     {
 859         if (processor->GetPriority() > node->GetData()->GetPriority())
 860         {
 861             m_GlobalProcessors->Insert(node, processor);
 862             return;
 863         }
 864     }
 865     m_GlobalProcessors->Append(processor);
 866 }
 867
 868
 869
 870 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 871 {
 872     m_Filters.Append(filter);
 873 }
 874
 875
 876 bool wxHtmlWindow::IsSelectionEnabled() const
 877 {
 878 #if wxUSE_CLIPBOARD
 879     return !HasFlag(wxHW_NO_SELECTION);
 880 #else
 881     return false;
 882 #endif
 883 }
 884
 885
 886 #if wxUSE_CLIPBOARD
 887 wxString wxHtmlWindow::DoSelectionToText(wxHtmlSelection *sel)
 888 {
 889     if ( !sel )
 890         return wxEmptyString;
 891
 892     wxClientDC dc(this);
 893     wxString text;
 894
 895     wxHtmlTerminalCellsInterator i(sel->GetFromCell(), sel->GetToCell());
 896     const wxHtmlCell *prev = NULL;
 897
 898     while ( i )
 899     {
 900         // When converting HTML content to plain text, the entire paragraph
 901         // (container in wxHTML) goes on single line. A new paragraph (that
 902         // should go on its own line) has its own container. Therefore, the
 903         // simplest way of detecting where to insert newlines in plain text
 904         // is to check if the parent container changed -- if it did, we moved
 905         // to a new paragraph.
 906         if ( prev && prev->GetParent() != i->GetParent() )
 907             text << '\n';
 908
 909         // NB: we don't need to pass the selection to ConvertToText() in the
 910         //     middle of the selected text; it's only useful when only part of
 911         //     a cell is selected
 912         text << i->ConvertToText(sel);
 913
 914         prev = *i;
 915         ++i;
 916     }
 917     return text;
 918 }
 919
 920 wxString wxHtmlWindow::ToText()
 921 {
 922     if (m_Cell)
 923     {
 924         wxHtmlSelection sel;
 925         sel.Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
 926         return DoSelectionToText(&sel);
 927     }
 928     else
 929         return wxEmptyString;
 930 }
 931
 932 #endif // wxUSE_CLIPBOARD
 933
 934 bool wxHtmlWindow::CopySelection(ClipboardType t)
 935 {
 936 #if wxUSE_CLIPBOARD
 937     if ( m_selection )
 938     {
 939 #if defined(__UNIX__) && !defined(__WXMAC__)
 940         wxTheClipboard->UsePrimarySelection(t == Primary);
 941 #else // !__UNIX__
 942         // Primary selection exists only under X11, so don't do anything under
 943         // the other platforms when we try to access it
 944         //
 945         // TODO: this should be abstracted at wxClipboard level!
 946         if ( t == Primary )
 947             return false;
 948 #endif // __UNIX__/!__UNIX__
 949
 950         if ( wxTheClipboard->Open() )
 951         {
 952             const wxString txt(SelectionToText());
 953             wxTheClipboard->SetData(new wxTextDataObject(txt));
 954             wxTheClipboard->Close();
 955             wxLogTrace(_T("wxhtmlselection"),
 956                        _("Copied to clipboard:\"%s\""), txt.c_str());
 957
 958             return true;
 959         }
 960     }
 961 #else
 962     wxUnusedVar(t);
 963 #endif // wxUSE_CLIPBOARD
 964
 965     return false;
 966 }
 967
 968
 969 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 970 {
 971     wxHtmlLinkEvent event(GetId(), link);
 972     event.SetEventObject(this);
 973     if (!GetEventHandler()->ProcessEvent(event))
 974     {
 975         // the default behaviour is to load the URL in this window
 976         const wxMouseEvent *e = event.GetLinkInfo().GetEvent();
 977         if (e == NULL || e->LeftUp())
 978             LoadPage(event.GetLinkInfo().GetHref());
 979     }
 980 }
 981
 982 void wxHtmlWindow::OnEraseBackground(wxEraseEvent& event)
 983 {
 984     if ( !m_bmpBg.Ok() )
 985     {
 986         // don't even skip the event, if we don't have a bg bitmap we're going
 987         // to overwrite background in OnPaint() below anyhow, so letting the
 988         // default handling take place would only result in flicker, just set a
 989         // flag to erase the background below
 990         m_eraseBgInOnPaint = true;
 991         return;
 992     }
 993
 994     wxDC& dc = *event.GetDC();
 995
 996     // if the image is not fully opaque, we have to erase the background before
 997     // drawing it, however avoid doing it for opaque images as this would just
 998     // result in extra flicker without any other effect as background is
 999     // completely covered anyhow
1000     if ( m_bmpBg.GetMask() )
1001     {
1002         dc.SetBackground(wxBrush(GetBackgroundColour(), wxBRUSHSTYLE_SOLID));
1003         dc.Clear();
1004     }
1005
1006     const wxSize sizeWin(GetClientSize());
1007     const wxSize sizeBmp(m_bmpBg.GetWidth(), m_bmpBg.GetHeight());
1008     for ( wxCoord x = 0; x < sizeWin.x; x += sizeBmp.x )
1009     {
1010         for ( wxCoord y = 0; y < sizeWin.y; y += sizeBmp.y )
1011         {
1012             dc.DrawBitmap(m_bmpBg, x, y, true /* use mask */);
1013         }
1014     }
1015 }
1016
1017 void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
1018 {
1019     wxPaintDC dc(this);
1020
1021     if (m_tmpCanDrawLocks > 0 || m_Cell == NULL)
1022         return;
1023
1024     int x, y;
1025     GetViewStart(&x, &y);
1026     wxRect rect = GetUpdateRegion().GetBox();
1027     wxSize sz = GetSize();
1028
1029     wxMemoryDC dcm;
1030     if ( !m_backBuffer )
1031         m_backBuffer = new wxBitmap(sz.x, sz.y);
1032     dcm.SelectObject(*m_backBuffer);
1033
1034     if ( m_eraseBgInOnPaint )
1035     {
1036         dcm.SetBackground(wxBrush(GetBackgroundColour(), wxBRUSHSTYLE_SOLID));
1037         dcm.Clear();
1038
1039         m_eraseBgInOnPaint = false;
1040     }
1041     else // someone has already erased the background, keep it
1042     {
1043         // preserve the existing background, otherwise we'd erase anything the
1044         // user code had drawn in its EVT_ERASE_BACKGROUND handler when we do
1045         // the Blit back below
1046         dcm.Blit(0, rect.GetTop(),
1047                  sz.x, rect.GetBottom() - rect.GetTop() + 1,
1048                  &dc,
1049                  0, rect.GetTop());
1050     }
1051
1052     PrepareDC(dcm);
1053     dcm.SetMapMode(wxMM_TEXT);
1054     dcm.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
1055
1056     wxHtmlRenderingInfo rinfo;
1057     wxDefaultHtmlRenderingStyle rstyle;
1058     rinfo.SetSelection(m_selection);
1059     rinfo.SetStyle(&rstyle);
1060     m_Cell->Draw(dcm, 0, 0,
1061                  y * wxHTML_SCROLL_STEP + rect.GetTop(),
1062                  y * wxHTML_SCROLL_STEP + rect.GetBottom(),
1063                  rinfo);
1064
1065 //#define DEBUG_HTML_SELECTION
1066 #ifdef DEBUG_HTML_SELECTION
1067     {
1068     int xc, yc, x, y;
1069     wxGetMousePosition(&xc, &yc);
1070     ScreenToClient(&xc, &yc);
1071     CalcUnscrolledPosition(xc, yc, &x, &y);
1072     wxHtmlCell *at = m_Cell->FindCellByPos(x, y);
1073     wxHtmlCell *before =
1074         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_BEFORE);
1075     wxHtmlCell *after =
1076         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_AFTER);
1077
1078     dcm.SetBrush(*wxTRANSPARENT_BRUSH);
1079     dcm.SetPen(*wxBLACK_PEN);
1080     if (at)
1081         dcm.DrawRectangle(at->GetAbsPos(),
1082                           wxSize(at->GetWidth(),at->GetHeight()));
1083     dcm.SetPen(*wxGREEN_PEN);
1084     if (before)
1085         dcm.DrawRectangle(before->GetAbsPos().x+1, before->GetAbsPos().y+1,
1086                           before->GetWidth()-2,before->GetHeight()-2);
1087     dcm.SetPen(*wxRED_PEN);
1088     if (after)
1089         dcm.DrawRectangle(after->GetAbsPos().x+2, after->GetAbsPos().y+2,
1090                           after->GetWidth()-4,after->GetHeight()-4);
1091     }
1092 #endif
1093
1094     dcm.SetDeviceOrigin(0,0);
1095     dc.Blit(0, rect.GetTop(),
1096             sz.x, rect.GetBottom() - rect.GetTop() + 1,
1097             &dcm,
1098             0, rect.GetTop());
1099 }
1100
1101
1102
1103
1104 void wxHtmlWindow::OnSize(wxSizeEvent& event)
1105 {
1106     wxDELETE(m_backBuffer);
1107
1108     wxScrolledWindow::OnSize(event);
1109     CreateLayout();
1110
1111     // Recompute selection if necessary:
1112     if ( m_selection )
1113     {
1114         m_selection->Set(m_selection->GetFromCell(),
1115                          m_selection->GetToCell());
1116         m_selection->ClearPrivPos();
1117     }
1118
1119     Refresh();
1120 }
1121
1122
1123 void wxHtmlWindow::OnMouseMove(wxMouseEvent& WXUNUSED(event))
1124 {
1125     wxHtmlWindowMouseHelper::HandleMouseMoved();
1126 }
1127
1128 void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
1129 {
1130 #if wxUSE_CLIPBOARD
1131     if ( event.LeftDown() && IsSelectionEnabled() )
1132     {
1133         const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
1134         if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
1135         {
1136             SelectLine(CalcUnscrolledPosition(event.GetPosition()));
1137
1138             (void) CopySelection();
1139         }
1140         else
1141         {
1142             m_makingSelection = true;
1143
1144             if ( m_selection )
1145             {
1146                 wxDELETE(m_selection);
1147                 Refresh();
1148             }
1149             m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
1150             m_tmpSelFromCell = NULL;
1151
1152             CaptureMouse();
1153         }
1154     }
1155 #endif // wxUSE_CLIPBOARD
1156
1157     // in any case, let the default handler set focus to this window
1158     event.Skip();
1159 }
1160
1161 void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
1162 {
1163 #if wxUSE_CLIPBOARD
1164     if ( m_makingSelection )
1165     {
1166         ReleaseMouse();
1167         m_makingSelection = false;
1168
1169         // if m_selection=NULL, the user didn't move the mouse far enough from
1170         // starting point and the mouse up event is part of a click, the user
1171         // is not selecting text:
1172         if ( m_selection )
1173         {
1174             CopySelection(Primary);
1175
1176             // we don't want mouse up event that ended selecting to be
1177             // handled as mouse click and e.g. follow hyperlink:
1178             return;
1179         }
1180     }
1181 #endif // wxUSE_CLIPBOARD
1182
1183     wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
1184     wxHtmlWindowMouseHelper::HandleMouseClick(m_Cell, pos, event);
1185 }
1186
1187 #if wxUSE_CLIPBOARD
1188 void wxHtmlWindow::OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
1189 {
1190     if ( !m_makingSelection )
1191         return;
1192
1193     // discard the selecting operation
1194     m_makingSelection = false;
1195     wxDELETE(m_selection);
1196     m_tmpSelFromCell = NULL;
1197     Refresh();
1198 }
1199 #endif // wxUSE_CLIPBOARD
1200
1201
1202 void wxHtmlWindow::OnInternalIdle()
1203 {
1204     wxWindow::OnInternalIdle();
1205
1206     if (m_Cell != NULL && DidMouseMove())
1207     {
1208 #ifdef DEBUG_HTML_SELECTION
1209         Refresh();
1210 #endif
1211         int xc, yc, x, y;
1212         wxGetMousePosition(&xc, &yc);
1213         ScreenToClient(&xc, &yc);
1214         CalcUnscrolledPosition(xc, yc, &x, &y);
1215
1216         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
1217
1218         // handle selection update:
1219         if ( m_makingSelection )
1220         {
1221             if ( !m_tmpSelFromCell )
1222                 m_tmpSelFromCell = m_Cell->FindCellByPos(
1223                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y);
1224
1225             // NB: a trick - we adjust selFromPos to be upper left or bottom
1226             //     right corner of the first cell of the selection depending
1227             //     on whether the mouse is moving to the right or to the left.
1228             //     This gives us more "natural" behaviour when selecting
1229             //     a line (specifically, first cell of the next line is not
1230             //     included if you drag selection from left to right over
1231             //     entire line):
1232             wxPoint dirFromPos;
1233             if ( !m_tmpSelFromCell )
1234             {
1235                 dirFromPos = m_tmpSelFromPos;
1236             }
1237             else
1238             {
1239                 dirFromPos = m_tmpSelFromCell->GetAbsPos();
1240                 if ( x < m_tmpSelFromPos.x )
1241                 {
1242                     dirFromPos.x += m_tmpSelFromCell->GetWidth();
1243                     dirFromPos.y += m_tmpSelFromCell->GetHeight();
1244                 }
1245             }
1246             bool goingDown = dirFromPos.y < y ||
1247                              (dirFromPos.y == y && dirFromPos.x < x);
1248
1249             // determine selection span:
1250             if ( /*still*/ !m_tmpSelFromCell )
1251             {
1252                 if (goingDown)
1253                 {
1254                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1255                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1256                                          wxHTML_FIND_NEAREST_AFTER);
1257                     if (!m_tmpSelFromCell)
1258                         m_tmpSelFromCell = m_Cell->GetFirstTerminal();
1259                 }
1260                 else
1261                 {
1262                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1263                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1264                                          wxHTML_FIND_NEAREST_BEFORE);
1265                     if (!m_tmpSelFromCell)
1266                         m_tmpSelFromCell = m_Cell->GetLastTerminal();
1267                 }
1268             }
1269
1270             wxHtmlCell *selcell = cell;
1271             if (!selcell)
1272             {
1273                 if (goingDown)
1274                 {
1275                     selcell = m_Cell->FindCellByPos(x, y,
1276                                                  wxHTML_FIND_NEAREST_BEFORE);
1277                     if (!selcell)
1278                         selcell = m_Cell->GetLastTerminal();
1279                 }
1280                 else
1281                 {
1282                     selcell = m_Cell->FindCellByPos(x, y,
1283                                                  wxHTML_FIND_NEAREST_AFTER);
1284                     if (!selcell)
1285                         selcell = m_Cell->GetFirstTerminal();
1286                 }
1287             }
1288
1289             // NB: it may *rarely* happen that the code above didn't find one
1290             //     of the cells, e.g. if wxHtmlWindow doesn't contain any
1291             //     visible cells.
1292             if ( selcell && m_tmpSelFromCell )
1293             {
1294                 if ( !m_selection )
1295                 {
1296                     // start selecting only if mouse movement was big enough
1297                     // (otherwise it was meant as mouse click, not selection):
1298                     const int PRECISION = 2;
1299                     wxPoint diff = m_tmpSelFromPos - wxPoint(x,y);
1300                     if (abs(diff.x) > PRECISION || abs(diff.y) > PRECISION)
1301                     {
1302                         m_selection = new wxHtmlSelection();
1303                     }
1304                 }
1305                 if ( m_selection )
1306                 {
1307                     if ( m_tmpSelFromCell->IsBefore(selcell) )
1308                     {
1309                         m_selection->Set(m_tmpSelFromPos, m_tmpSelFromCell,
1310                                          wxPoint(x,y), selcell);
1311                     }
1312                     else
1313                     {
1314                         m_selection->Set(wxPoint(x,y), selcell,
1315                                          m_tmpSelFromPos, m_tmpSelFromCell);
1316                     }
1317                     m_selection->ClearPrivPos();
1318                     Refresh();
1319                 }
1320             }
1321         }
1322
1323         // handle cursor and status bar text changes:
1324
1325         // NB: because we're passing in 'cell' and not 'm_Cell' (so that the
1326         //     leaf cell lookup isn't done twice), we need to adjust the
1327         //     position for the new root:
1328         wxPoint posInCell(x, y);
1329         if (cell)
1330             posInCell -= cell->GetAbsPos();
1331         wxHtmlWindowMouseHelper::HandleIdle(cell, posInCell);
1332     }
1333 }
1334
1335 #if wxUSE_CLIPBOARD
1336 void wxHtmlWindow::StopAutoScrolling()
1337 {
1338     if ( m_timerAutoScroll )
1339     {
1340         wxDELETE(m_timerAutoScroll);
1341     }
1342 }
1343
1344 void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event)
1345 {
1346     StopAutoScrolling();
1347     event.Skip();
1348 }
1349
1350 void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
1351 {
1352     // don't prevent the usual processing of the event from taking place
1353     event.Skip();
1354
1355     // when a captured mouse leave a scrolled window we start generate
1356     // scrolling events to allow, for example, extending selection beyond the
1357     // visible area in some controls
1358     if ( wxWindow::GetCapture() == this )
1359     {
1360         // where is the mouse leaving?
1361         int pos, orient;
1362         wxPoint pt = event.GetPosition();
1363         if ( pt.x < 0 )
1364         {
1365             orient = wxHORIZONTAL;
1366             pos = 0;
1367         }
1368         else if ( pt.y < 0 )
1369         {
1370             orient = wxVERTICAL;
1371             pos = 0;
1372         }
1373         else // we're lower or to the right of the window
1374         {
1375             wxSize size = GetClientSize();
1376             if ( pt.x > size.x )
1377             {
1378                 orient = wxHORIZONTAL;
1379                 pos = GetVirtualSize().x / wxHTML_SCROLL_STEP;
1380             }
1381             else if ( pt.y > size.y )
1382             {
1383                 orient = wxVERTICAL;
1384                 pos = GetVirtualSize().y / wxHTML_SCROLL_STEP;
1385             }
1386             else // this should be impossible
1387             {
1388                 // but seems to happen sometimes under wxMSW - maybe it's a bug
1389                 // there but for now just ignore it
1390
1391                 //wxFAIL_MSG( _T("can't understand where has mouse gone") );
1392
1393                 return;
1394             }
1395         }
1396
1397         // only start the auto scroll timer if the window can be scrolled in
1398         // this direction
1399         if ( !HasScrollbar(orient) )
1400             return;
1401
1402         delete m_timerAutoScroll;
1403         m_timerAutoScroll = new wxHtmlWinAutoScrollTimer
1404                                 (
1405                                     this,
1406                                     pos == 0 ? wxEVT_SCROLLWIN_LINEUP
1407                                              : wxEVT_SCROLLWIN_LINEDOWN,
1408                                     pos,
1409                                     orient
1410                                 );
1411         m_timerAutoScroll->Start(50); // FIXME: make configurable
1412     }
1413 }
1414
1415 void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
1416 {
1417     if ( IsSelectionEnabled() &&
1418             (event.GetKeyCode() == 'C' && event.CmdDown()) )
1419     {
1420         wxClipboardTextEvent evt(wxEVT_COMMAND_TEXT_COPY, GetId());
1421
1422         evt.SetEventObject(this);
1423
1424         GetEventHandler()->ProcessEvent(evt);
1425     }
1426 }
1427
1428 void wxHtmlWindow::OnCopy(wxCommandEvent& WXUNUSED(event))
1429 {
1430     (void) CopySelection();
1431 }
1432
1433 void wxHtmlWindow::OnClipboardEvent(wxClipboardTextEvent& WXUNUSED(event))
1434 {
1435     (void) CopySelection();
1436 }
1437
1438 void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event)
1439 {
1440     // select word under cursor:
1441     if ( IsSelectionEnabled() )
1442     {
1443         SelectWord(CalcUnscrolledPosition(event.GetPosition()));
1444
1445         (void) CopySelection(Primary);
1446
1447         m_lastDoubleClick = wxGetLocalTimeMillis();
1448     }
1449     else
1450         event.Skip();
1451 }
1452
1453 void wxHtmlWindow::SelectWord(const wxPoint& pos)
1454 {
1455     if ( m_Cell )
1456     {
1457         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1458         if ( cell )
1459         {
1460             delete m_selection;
1461             m_selection = new wxHtmlSelection();
1462             m_selection->Set(cell, cell);
1463             RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
1464                                wxSize(cell->GetWidth(), cell->GetHeight())));
1465         }
1466     }
1467 }
1468
1469 void wxHtmlWindow::SelectLine(const wxPoint& pos)
1470 {
1471     if ( m_Cell )
1472     {
1473         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1474         if ( cell )
1475         {
1476             // We use following heuristic to find a "line": let the line be all
1477             // cells in same container as the cell under mouse cursor that are
1478             // neither completely above nor completely bellow the clicked cell
1479             // (i.e. are likely to be words positioned on same line of text).
1480
1481             int y1 = cell->GetAbsPos().y;
1482             int y2 = y1 + cell->GetHeight();
1483             int y;
1484             const wxHtmlCell *c;
1485             const wxHtmlCell *before = NULL;
1486             const wxHtmlCell *after = NULL;
1487
1488             // find last cell of line:
1489             for ( c = cell->GetNext(); c; c = c->GetNext())
1490             {
1491                 y = c->GetAbsPos().y;
1492                 if ( y + c->GetHeight() > y1 && y < y2 )
1493                     after = c;
1494                 else
1495                     break;
1496             }
1497             if ( !after )
1498                 after = cell;
1499
1500             // find first cell of line:
1501             for ( c = cell->GetParent()->GetFirstChild();
1502                     c && c != cell; c = c->GetNext())
1503             {
1504                 y = c->GetAbsPos().y;
1505                 if ( y + c->GetHeight() > y1 && y < y2 )
1506                 {
1507                     if ( ! before )
1508                         before = c;
1509                 }
1510                 else
1511                     before = NULL;
1512             }
1513             if ( !before )
1514                 before = cell;
1515
1516             delete m_selection;
1517             m_selection = new wxHtmlSelection();
1518             m_selection->Set(before, after);
1519
1520             Refresh();
1521         }
1522     }
1523 }
1524
1525 void wxHtmlWindow::SelectAll()
1526 {
1527     if ( m_Cell )
1528     {
1529         delete m_selection;
1530         m_selection = new wxHtmlSelection();
1531         m_selection->Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
1532         Refresh();
1533     }
1534 }
1535
1536 #endif // wxUSE_CLIPBOARD
1537
1538
1539
1540 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
1541
1542 #if wxUSE_EXTENDED_RTTI
1543 IMPLEMENT_DYNAMIC_CLASS_XTI(wxHtmlWindow, wxScrolledWindow,"wx/html/htmlwin.h")
1544
1545 wxBEGIN_PROPERTIES_TABLE(wxHtmlWindow)
1546 /*
1547     TODO PROPERTIES
1548         style , wxHW_SCROLLBAR_AUTO
1549         borders , (dimension)
1550         url , string
1551         htmlcode , string
1552 */
1553 wxEND_PROPERTIES_TABLE()
1554
1555 wxBEGIN_HANDLERS_TABLE(wxHtmlWindow)
1556 wxEND_HANDLERS_TABLE()
1557
1558 wxCONSTRUCTOR_5( wxHtmlWindow , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
1559 #else
1560 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
1561 #endif
1562
1563 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
1564     EVT_SIZE(wxHtmlWindow::OnSize)
1565     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseDown)
1566     EVT_LEFT_UP(wxHtmlWindow::OnMouseUp)
1567     EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp)
1568     EVT_MOTION(wxHtmlWindow::OnMouseMove)
1569     EVT_ERASE_BACKGROUND(wxHtmlWindow::OnEraseBackground)
1570     EVT_PAINT(wxHtmlWindow::OnPaint)
1571 #if wxUSE_CLIPBOARD
1572     EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick)
1573     EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter)
1574     EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave)
1575     EVT_MOUSE_CAPTURE_LOST(wxHtmlWindow::OnMouseCaptureLost)
1576     EVT_KEY_UP(wxHtmlWindow::OnKeyUp)
1577     EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy)
1578     EVT_TEXT_COPY(wxID_ANY, wxHtmlWindow::OnClipboardEvent)
1579 #endif // wxUSE_CLIPBOARD
1580 END_EVENT_TABLE()
1581
1582 //-----------------------------------------------------------------------------
1583 // wxHtmlWindowInterface implementation in wxHtmlWindow
1584 //-----------------------------------------------------------------------------
1585
1586 void wxHtmlWindow::SetHTMLWindowTitle(const wxString& title)
1587 {
1588     OnSetTitle(title);
1589 }
1590
1591 void wxHtmlWindow::OnHTMLLinkClicked(const wxHtmlLinkInfo& link)
1592 {
1593     OnLinkClicked(link);
1594 }
1595
1596 wxHtmlOpeningStatus wxHtmlWindow::OnHTMLOpeningURL(wxHtmlURLType type,
1597                                                    const wxString& url,
1598                                                    wxString *redirect) const
1599 {
1600     return OnOpeningURL(type, url, redirect);
1601 }
1602
1603 wxPoint wxHtmlWindow::HTMLCoordsToWindow(wxHtmlCell *WXUNUSED(cell),
1604                                          const wxPoint& pos) const
1605 {
1606     return CalcScrolledPosition(pos);
1607 }
1608
1609 wxWindow* wxHtmlWindow::GetHTMLWindow()
1610 {
1611     return this;
1612 }
1613
1614 wxColour wxHtmlWindow::GetHTMLBackgroundColour() const
1615 {
1616     return GetBackgroundColour();
1617 }
1618
1619 void wxHtmlWindow::SetHTMLBackgroundColour(const wxColour& clr)
1620 {
1621     SetBackgroundColour(clr);
1622 }
1623
1624 void wxHtmlWindow::SetHTMLBackgroundImage(const wxBitmap& bmpBg)
1625 {
1626     SetBackgroundImage(bmpBg);
1627 }
1628
1629 void wxHtmlWindow::SetHTMLStatusText(const wxString& text)
1630 {
1631 #if wxUSE_STATUSBAR
1632     if (m_RelatedStatusBarIndex != -1)
1633     {
1634         if (m_RelatedStatusBar)
1635         {
1636             m_RelatedStatusBar->SetStatusText(text, m_RelatedStatusBarIndex);
1637         }
1638         else if (m_RelatedFrame)
1639         {
1640             m_RelatedFrame->SetStatusText(text, m_RelatedStatusBarIndex);
1641         }
1642     }
1643 #else
1644     wxUnusedVar(text);
1645 #endif // wxUSE_STATUSBAR
1646 }
1647
1648 /*static*/
1649 wxCursor wxHtmlWindow::GetDefaultHTMLCursor(HTMLCursor type)
1650 {
1651     switch (type)
1652     {
1653         case HTMLCursor_Link:
1654             if ( !ms_cursorLink )
1655                 ms_cursorLink = new wxCursor(wxCURSOR_HAND);
1656             return *ms_cursorLink;
1657
1658         case HTMLCursor_Text:
1659             if ( !ms_cursorText )
1660                 ms_cursorText = new wxCursor(wxCURSOR_IBEAM);
1661             return *ms_cursorText;
1662
1663         case HTMLCursor_Default:
1664         default:
1665             return *wxSTANDARD_CURSOR;
1666     }
1667 }
1668
1669 wxCursor wxHtmlWindow::GetHTMLCursor(HTMLCursor type) const
1670 {
1671     return GetDefaultHTMLCursor(type);
1672 }
1673
1674
1675 //-----------------------------------------------------------------------------
1676 // wxHtmlWinModule
1677 //-----------------------------------------------------------------------------
1678
1679 // A module to allow initialization/cleanup
1680 // without calling these functions from app.cpp or from
1681 // the user's application.
1682
1683 class wxHtmlWinModule: public wxModule
1684 {
1685 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
1686 public:
1687     wxHtmlWinModule() : wxModule() {}
1688     bool OnInit() { return true; }
1689     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
1690 };
1691
1692 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
1693
1694
1695 // This hack forces the linker to always link in m_* files
1696 // (wxHTML doesn't work without handlers from these files)
1697 #include "wx/html/forcelnk.h"
1698 FORCE_WXHTML_MODULES()
1699
1700 #endif // wxUSE_HTML