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     wxBusyCursor busyCursor;
 472
 473     wxFSFile *f;
 474     bool rt_val;
 475     bool needs_refresh = false;
 476
 477     m_tmpCanDrawLocks++;
 478     if (m_HistoryOn && (m_HistoryPos != -1))
 479     {
 480         // store scroll position into history item:
 481         int x, y;
 482         GetViewStart(&x, &y);
 483         (*m_History)[m_HistoryPos].SetPos(y);
 484     }
 485
 486     if (location[0] == wxT('#'))
 487     {
 488         // local anchor:
 489         wxString anch = location.Mid(1) /*1 to end*/;
 490         m_tmpCanDrawLocks--;
 491         rt_val = ScrollToAnchor(anch);
 492         m_tmpCanDrawLocks++;
 493     }
 494     else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
 495     {
 496         wxString anch = location.AfterFirst(wxT('#'));
 497         m_tmpCanDrawLocks--;
 498         rt_val = ScrollToAnchor(anch);
 499         m_tmpCanDrawLocks++;
 500     }
 501     else if (location.Find(wxT('#')) != wxNOT_FOUND &&
 502              (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
 503     {
 504         wxString anch = location.AfterFirst(wxT('#'));
 505         m_tmpCanDrawLocks--;
 506         rt_val = ScrollToAnchor(anch);
 507         m_tmpCanDrawLocks++;
 508     }
 509
 510     else
 511     {
 512         needs_refresh = true;
 513 #if wxUSE_STATUSBAR
 514         // load&display it:
 515         if (m_RelatedStatusBar != -1)
 516         {
 517             m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
 518             Refresh(false);
 519         }
 520 #endif // wxUSE_STATUSBAR
 521
 522         f = m_Parser->OpenURL(wxHTML_URL_PAGE, location);
 523
 524         // try to interpret 'location' as filename instead of URL:
 525         if (f == NULL)
 526         {
 527             wxFileName fn(location);
 528             wxString location2 = wxFileSystem::FileNameToURL(fn);
 529             f = m_Parser->OpenURL(wxHTML_URL_PAGE, location2);
 530         }
 531
 532         if (f == NULL)
 533         {
 534             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 535             m_tmpCanDrawLocks--;
 536             SetHTMLStatusText(wxEmptyString);
 537             return false;
 538         }
 539
 540         else
 541         {
 542             wxList::compatibility_iterator node;
 543             wxString src = wxEmptyString;
 544
 545 #if wxUSE_STATUSBAR
 546             if (m_RelatedStatusBar != -1)
 547             {
 548                 wxString msg = _("Loading : ") + location;
 549                 m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
 550                 Refresh(false);
 551             }
 552 #endif // wxUSE_STATUSBAR
 553
 554             node = m_Filters.GetFirst();
 555             while (node)
 556             {
 557                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 558                 if (h->CanRead(*f))
 559                 {
 560                     src = h->ReadFile(*f);
 561                     break;
 562                 }
 563                 node = node->GetNext();
 564             }
 565             if (src == wxEmptyString)
 566             {
 567                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 568                 src = m_DefaultFilter->ReadFile(*f);
 569             }
 570
 571             m_FS->ChangePathTo(f->GetLocation());
 572             rt_val = SetPage(src);
 573             m_OpenedPage = f->GetLocation();
 574             if (f->GetAnchor() != wxEmptyString)
 575             {
 576                 ScrollToAnchor(f->GetAnchor());
 577             }
 578
 579             delete f;
 580
 581 #if wxUSE_STATUSBAR
 582             if (m_RelatedStatusBar != -1)
 583                 m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
 584 #endif // wxUSE_STATUSBAR
 585         }
 586     }
 587
 588     if (m_HistoryOn) // add this page to history there:
 589     {
 590         int c = m_History->GetCount() - (m_HistoryPos + 1);
 591
 592         if (m_HistoryPos < 0 ||
 593             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 594             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 595         {
 596             m_HistoryPos++;
 597             for (int i = 0; i < c; i++)
 598                 m_History->RemoveAt(m_HistoryPos);
 599             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 600         }
 601     }
 602
 603     if (m_OpenedPageTitle == wxEmptyString)
 604         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 605
 606     if (needs_refresh)
 607     {
 608         m_tmpCanDrawLocks--;
 609         Refresh();
 610     }
 611     else
 612         m_tmpCanDrawLocks--;
 613
 614     return rt_val;
 615 }
 616
 617
 618 bool wxHtmlWindow::LoadFile(const wxFileName& filename)
 619 {
 620     wxString url = wxFileSystem::FileNameToURL(filename);
 621     return LoadPage(url);
 622 }
 623
 624
 625 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 626 {
 627     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 628     if (!c)
 629     {
 630         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 631         return false;
 632     }
 633     else
 634     {
 635         int y;
 636
 637         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 638         Scroll(-1, y / wxHTML_SCROLL_STEP);
 639         m_OpenedAnchor = anchor;
 640         return true;
 641     }
 642 }
 643
 644
 645 void wxHtmlWindow::OnSetTitle(const wxString& title)
 646 {
 647     if (m_RelatedFrame)
 648     {
 649         wxString tit;
 650         tit.Printf(m_TitleFormat, title.c_str());
 651         m_RelatedFrame->SetTitle(tit);
 652     }
 653     m_OpenedPageTitle = title;
 654 }
 655
 656
 657
 658
 659
 660 void wxHtmlWindow::CreateLayout()
 661 {
 662     int ClientWidth, ClientHeight;
 663
 664     if (!m_Cell) return;
 665
 666     if ( HasFlag(wxHW_SCROLLBAR_NEVER) )
 667     {
 668         SetScrollbars(1, 1, 0, 0); // always off
 669         GetClientSize(&ClientWidth, &ClientHeight);
 670         m_Cell->Layout(ClientWidth);
 671     }
 672     else // !wxHW_SCROLLBAR_NEVER
 673     {
 674         GetClientSize(&ClientWidth, &ClientHeight);
 675         m_Cell->Layout(ClientWidth);
 676         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 677         {
 678             SetScrollbars(
 679                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 680                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 681                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 682                   /*cheat: top-level frag is always container*/);
 683         }
 684         else /* we fit into window, no need for scrollbars */
 685         {
 686             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 687             GetClientSize(&ClientWidth, &ClientHeight);
 688             m_Cell->Layout(ClientWidth); // ...and relayout
 689         }
 690     }
 691 }
 692
 693
 694
 695 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 696 {
 697     wxString oldpath;
 698     wxString tmp;
 699     int p_fontsizes[7];
 700     wxString p_fff, p_ffn;
 701
 702     if (path != wxEmptyString)
 703     {
 704         oldpath = cfg->GetPath();
 705         cfg->SetPath(path);
 706     }
 707
 708     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 709     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 710     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 711     for (int i = 0; i < 7; i++)
 712     {
 713         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 714         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 715     }
 716     SetFonts(p_ffn, p_fff, p_fontsizes);
 717
 718     if (path != wxEmptyString)
 719         cfg->SetPath(oldpath);
 720 }
 721
 722
 723
 724 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 725 {
 726     wxString oldpath;
 727     wxString tmp;
 728
 729     if (path != wxEmptyString)
 730     {
 731         oldpath = cfg->GetPath();
 732         cfg->SetPath(path);
 733     }
 734
 735     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 736     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 737     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 738     for (int i = 0; i < 7; i++)
 739     {
 740         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 741         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 742     }
 743
 744     if (path != wxEmptyString)
 745         cfg->SetPath(oldpath);
 746 }
 747
 748
 749
 750 bool wxHtmlWindow::HistoryBack()
 751 {
 752     wxString a, l;
 753
 754     if (m_HistoryPos < 1) return false;
 755
 756     // store scroll position into history item:
 757     int x, y;
 758     GetViewStart(&x, &y);
 759     (*m_History)[m_HistoryPos].SetPos(y);
 760
 761     // go to previous position:
 762     m_HistoryPos--;
 763
 764     l = (*m_History)[m_HistoryPos].GetPage();
 765     a = (*m_History)[m_HistoryPos].GetAnchor();
 766     m_HistoryOn = false;
 767     m_tmpCanDrawLocks++;
 768     if (a == wxEmptyString) LoadPage(l);
 769     else LoadPage(l + wxT("#") + a);
 770     m_HistoryOn = true;
 771     m_tmpCanDrawLocks--;
 772     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 773     Refresh();
 774     return true;
 775 }
 776
 777 bool wxHtmlWindow::HistoryCanBack()
 778 {
 779     if (m_HistoryPos < 1) return false;
 780     return true ;
 781 }
 782
 783
 784 bool wxHtmlWindow::HistoryForward()
 785 {
 786     wxString a, l;
 787
 788     if (m_HistoryPos == -1) return false;
 789     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 790
 791     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 792
 793     m_HistoryPos++;
 794     l = (*m_History)[m_HistoryPos].GetPage();
 795     a = (*m_History)[m_HistoryPos].GetAnchor();
 796     m_HistoryOn = false;
 797     m_tmpCanDrawLocks++;
 798     if (a == wxEmptyString) LoadPage(l);
 799     else LoadPage(l + wxT("#") + a);
 800     m_HistoryOn = true;
 801     m_tmpCanDrawLocks--;
 802     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 803     Refresh();
 804     return true;
 805 }
 806
 807 bool wxHtmlWindow::HistoryCanForward()
 808 {
 809     if (m_HistoryPos == -1) return false;
 810     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 811     return true ;
 812 }
 813
 814
 815 void wxHtmlWindow::HistoryClear()
 816 {
 817     m_History->Empty();
 818     m_HistoryPos = -1;
 819 }
 820
 821 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 822 {
 823     if (!m_Processors)
 824     {
 825         m_Processors = new wxHtmlProcessorList;
 826     }
 827     wxHtmlProcessorList::compatibility_iterator node;
 828
 829     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 830     {
 831         if (processor->GetPriority() > node->GetData()->GetPriority())
 832         {
 833             m_Processors->Insert(node, processor);
 834             return;
 835         }
 836     }
 837     m_Processors->Append(processor);
 838 }
 839
 840 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 841 {
 842     if (!m_GlobalProcessors)
 843     {
 844         m_GlobalProcessors = new wxHtmlProcessorList;
 845     }
 846     wxHtmlProcessorList::compatibility_iterator node;
 847
 848     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 849     {
 850         if (processor->GetPriority() > node->GetData()->GetPriority())
 851         {
 852             m_GlobalProcessors->Insert(node, processor);
 853             return;
 854         }
 855     }
 856     m_GlobalProcessors->Append(processor);
 857 }
 858
 859
 860
 861 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 862 {
 863     m_Filters.Append(filter);
 864 }
 865
 866
 867 bool wxHtmlWindow::IsSelectionEnabled() const
 868 {
 869 #if wxUSE_CLIPBOARD
 870     return !HasFlag(wxHW_NO_SELECTION);
 871 #else
 872     return false;
 873 #endif
 874 }
 875
 876
 877 #if wxUSE_CLIPBOARD
 878 wxString wxHtmlWindow::DoSelectionToText(wxHtmlSelection *sel)
 879 {
 880     if ( !sel )
 881         return wxEmptyString;
 882
 883     wxClientDC dc(this);
 884
 885     const wxHtmlCell *end = sel->GetToCell();
 886     wxString text;
 887     wxHtmlTerminalCellsInterator i(sel->GetFromCell(), end);
 888     if ( i )
 889     {
 890         text << i->ConvertToText(sel);
 891         ++i;
 892     }
 893     const wxHtmlCell *prev = *i;
 894     while ( i )
 895     {
 896         if ( prev->GetParent() != i->GetParent() )
 897             text << _T('\n');
 898         text << i->ConvertToText(*i == end ? sel : NULL);
 899         prev = *i;
 900         ++i;
 901     }
 902     return text;
 903 }
 904
 905 wxString wxHtmlWindow::ToText()
 906 {
 907     if (m_Cell)
 908     {
 909         wxHtmlSelection sel;
 910         sel.Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
 911         return DoSelectionToText(&sel);
 912     }
 913     else
 914         return wxEmptyString;
 915 }
 916
 917 #endif // wxUSE_CLIPBOARD
 918
 919 bool wxHtmlWindow::CopySelection(ClipboardType t)
 920 {
 921 #if wxUSE_CLIPBOARD
 922     if ( m_selection )
 923     {
 924 #if defined(__UNIX__) && !defined(__WXMAC__)
 925         wxTheClipboard->UsePrimarySelection(t == Primary);
 926 #else // !__UNIX__
 927         // Primary selection exists only under X11, so don't do anything under
 928         // the other platforms when we try to access it
 929         //
 930         // TODO: this should be abstracted at wxClipboard level!
 931         if ( t == Primary )
 932             return false;
 933 #endif // __UNIX__/!__UNIX__
 934
 935         if ( wxTheClipboard->Open() )
 936         {
 937             const wxString txt(SelectionToText());
 938             wxTheClipboard->SetData(new wxTextDataObject(txt));
 939             wxTheClipboard->Close();
 940             wxLogTrace(_T("wxhtmlselection"),
 941                        _("Copied to clipboard:\"%s\""), txt.c_str());
 942
 943             return true;
 944         }
 945     }
 946 #else
 947     wxUnusedVar(t);
 948 #endif // wxUSE_CLIPBOARD
 949
 950     return false;
 951 }
 952
 953
 954 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 955 {
 956     wxHtmlLinkEvent event(GetId(), link);
 957     event.SetEventObject(this);
 958     if (!GetEventHandler()->ProcessEvent(event))
 959     {
 960         // the default behaviour is to load the URL in this window
 961         const wxMouseEvent *e = event.GetLinkInfo().GetEvent();
 962         if (e == NULL || e->LeftUp())
 963             LoadPage(event.GetLinkInfo().GetHref());
 964     }
 965 }
 966
 967 void wxHtmlWindow::OnEraseBackground(wxEraseEvent& event)
 968 {
 969     if ( !m_bmpBg.Ok() )
 970     {
 971         // don't even skip the event, if we don't have a bg bitmap we're going
 972         // to overwrite background in OnPaint() below anyhow, so letting the
 973         // default handling take place would only result in flicker, just set a
 974         // flag to erase the background below
 975         m_eraseBgInOnPaint = true;
 976         return;
 977     }
 978
 979     wxDC& dc = *event.GetDC();
 980
 981     // if the image is not fully opaque, we have to erase the background before
 982     // drawing it, however avoid doing it for opaque images as this would just
 983     // result in extra flicker without any other effect as background is
 984     // completely covered anyhow
 985     if ( m_bmpBg.GetMask() )
 986     {
 987         dc.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
 988         dc.Clear();
 989     }
 990
 991     const wxSize sizeWin(GetClientSize());
 992     const wxSize sizeBmp(m_bmpBg.GetWidth(), m_bmpBg.GetHeight());
 993     for ( wxCoord x = 0; x < sizeWin.x; x += sizeBmp.x )
 994     {
 995         for ( wxCoord y = 0; y < sizeWin.y; y += sizeBmp.y )
 996         {
 997             dc.DrawBitmap(m_bmpBg, x, y, true /* use mask */);
 998         }
 999     }
1000 }
1001
1002 void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
1003 {
1004     wxPaintDC dc(this);
1005
1006     if (m_tmpCanDrawLocks > 0 || m_Cell == NULL)
1007         return;
1008
1009     int x, y;
1010     GetViewStart(&x, &y);
1011     wxRect rect = GetUpdateRegion().GetBox();
1012     wxSize sz = GetSize();
1013
1014     wxMemoryDC dcm;
1015     if ( !m_backBuffer )
1016         m_backBuffer = new wxBitmap(sz.x, sz.y);
1017     dcm.SelectObject(*m_backBuffer);
1018
1019     if ( m_eraseBgInOnPaint )
1020     {
1021         dcm.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
1022         dcm.Clear();
1023
1024         m_eraseBgInOnPaint = false;
1025     }
1026     else // someone has already erased the background, keep it
1027     {
1028         // preserve the existing background, otherwise we'd erase anything the
1029         // user code had drawn in its EVT_ERASE_BACKGROUND handler when we do
1030         // the Blit back below
1031         dcm.Blit(0, rect.GetTop(),
1032                  sz.x, rect.GetBottom() - rect.GetTop() + 1,
1033                  &dc,
1034                  0, rect.GetTop());
1035     }
1036
1037     PrepareDC(dcm);
1038     dcm.SetMapMode(wxMM_TEXT);
1039     dcm.SetBackgroundMode(wxTRANSPARENT);
1040
1041     wxHtmlRenderingInfo rinfo;
1042     wxDefaultHtmlRenderingStyle rstyle;
1043     rinfo.SetSelection(m_selection);
1044     rinfo.SetStyle(&rstyle);
1045     m_Cell->Draw(dcm, 0, 0,
1046                  y * wxHTML_SCROLL_STEP + rect.GetTop(),
1047                  y * wxHTML_SCROLL_STEP + rect.GetBottom(),
1048                  rinfo);
1049
1050 //#define DEBUG_HTML_SELECTION
1051 #ifdef DEBUG_HTML_SELECTION
1052     {
1053     int xc, yc, x, y;
1054     wxGetMousePosition(&xc, &yc);
1055     ScreenToClient(&xc, &yc);
1056     CalcUnscrolledPosition(xc, yc, &x, &y);
1057     wxHtmlCell *at = m_Cell->FindCellByPos(x, y);
1058     wxHtmlCell *before =
1059         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_BEFORE);
1060     wxHtmlCell *after =
1061         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_AFTER);
1062
1063     dcm.SetBrush(*wxTRANSPARENT_BRUSH);
1064     dcm.SetPen(*wxBLACK_PEN);
1065     if (at)
1066         dcm.DrawRectangle(at->GetAbsPos(),
1067                           wxSize(at->GetWidth(),at->GetHeight()));
1068     dcm.SetPen(*wxGREEN_PEN);
1069     if (before)
1070         dcm.DrawRectangle(before->GetAbsPos().x+1, before->GetAbsPos().y+1,
1071                           before->GetWidth()-2,before->GetHeight()-2);
1072     dcm.SetPen(*wxRED_PEN);
1073     if (after)
1074         dcm.DrawRectangle(after->GetAbsPos().x+2, after->GetAbsPos().y+2,
1075                           after->GetWidth()-4,after->GetHeight()-4);
1076     }
1077 #endif
1078
1079     dcm.SetDeviceOrigin(0,0);
1080     dc.Blit(0, rect.GetTop(),
1081             sz.x, rect.GetBottom() - rect.GetTop() + 1,
1082             &dcm,
1083             0, rect.GetTop());
1084 }
1085
1086
1087
1088
1089 void wxHtmlWindow::OnSize(wxSizeEvent& event)
1090 {
1091     wxDELETE(m_backBuffer);
1092
1093     wxScrolledWindow::OnSize(event);
1094     CreateLayout();
1095
1096     // Recompute selection if necessary:
1097     if ( m_selection )
1098     {
1099         m_selection->Set(m_selection->GetFromCell(),
1100                          m_selection->GetToCell());
1101         m_selection->ClearPrivPos();
1102     }
1103
1104     Refresh();
1105 }
1106
1107
1108 void wxHtmlWindow::OnMouseMove(wxMouseEvent& WXUNUSED(event))
1109 {
1110     wxHtmlWindowMouseHelper::HandleMouseMoved();
1111 }
1112
1113 void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
1114 {
1115 #if wxUSE_CLIPBOARD
1116     if ( event.LeftDown() && IsSelectionEnabled() )
1117     {
1118         const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
1119         if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
1120         {
1121             SelectLine(CalcUnscrolledPosition(event.GetPosition()));
1122
1123             (void) CopySelection();
1124         }
1125         else
1126         {
1127             m_makingSelection = true;
1128
1129             if ( m_selection )
1130             {
1131                 wxDELETE(m_selection);
1132                 Refresh();
1133             }
1134             m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
1135             m_tmpSelFromCell = NULL;
1136
1137             CaptureMouse();
1138         }
1139     }
1140 #endif // wxUSE_CLIPBOARD
1141
1142     // in any case, let the default handler set focus to this window
1143     event.Skip();
1144 }
1145
1146 void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
1147 {
1148 #if wxUSE_CLIPBOARD
1149     if ( m_makingSelection )
1150     {
1151         ReleaseMouse();
1152         m_makingSelection = false;
1153
1154         // if m_selection=NULL, the user didn't move the mouse far enough from
1155         // starting point and the mouse up event is part of a click, the user
1156         // is not selecting text:
1157         if ( m_selection )
1158         {
1159             CopySelection(Primary);
1160
1161             // we don't want mouse up event that ended selecting to be
1162             // handled as mouse click and e.g. follow hyperlink:
1163             return;
1164         }
1165     }
1166 #endif // wxUSE_CLIPBOARD
1167
1168     wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
1169     wxHtmlWindowMouseHelper::HandleMouseClick(m_Cell, pos, event);
1170 }
1171
1172 #if wxUSE_CLIPBOARD
1173 void wxHtmlWindow::OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
1174 {
1175     if ( !m_makingSelection )
1176         return;
1177
1178     // discard the selecting operation
1179     m_makingSelection = false;
1180     wxDELETE(m_selection);
1181     m_tmpSelFromCell = NULL;
1182     Refresh();
1183 }
1184 #endif // wxUSE_CLIPBOARD
1185
1186
1187 void wxHtmlWindow::OnInternalIdle()
1188 {
1189     wxWindow::OnInternalIdle();
1190
1191     if (m_Cell != NULL && DidMouseMove())
1192     {
1193 #ifdef DEBUG_HTML_SELECTION
1194         Refresh();
1195 #endif
1196         int xc, yc, x, y;
1197         wxGetMousePosition(&xc, &yc);
1198         ScreenToClient(&xc, &yc);
1199         CalcUnscrolledPosition(xc, yc, &x, &y);
1200
1201         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
1202
1203         // handle selection update:
1204         if ( m_makingSelection )
1205         {
1206             if ( !m_tmpSelFromCell )
1207                 m_tmpSelFromCell = m_Cell->FindCellByPos(
1208                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y);
1209
1210             // NB: a trick - we adjust selFromPos to be upper left or bottom
1211             //     right corner of the first cell of the selection depending
1212             //     on whether the mouse is moving to the right or to the left.
1213             //     This gives us more "natural" behaviour when selecting
1214             //     a line (specifically, first cell of the next line is not
1215             //     included if you drag selection from left to right over
1216             //     entire line):
1217             wxPoint dirFromPos;
1218             if ( !m_tmpSelFromCell )
1219             {
1220                 dirFromPos = m_tmpSelFromPos;
1221             }
1222             else
1223             {
1224                 dirFromPos = m_tmpSelFromCell->GetAbsPos();
1225                 if ( x < m_tmpSelFromPos.x )
1226                 {
1227                     dirFromPos.x += m_tmpSelFromCell->GetWidth();
1228                     dirFromPos.y += m_tmpSelFromCell->GetHeight();
1229                 }
1230             }
1231             bool goingDown = dirFromPos.y < y ||
1232                              (dirFromPos.y == y && dirFromPos.x < x);
1233
1234             // determine selection span:
1235             if ( /*still*/ !m_tmpSelFromCell )
1236             {
1237                 if (goingDown)
1238                 {
1239                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1240                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1241                                          wxHTML_FIND_NEAREST_AFTER);
1242                     if (!m_tmpSelFromCell)
1243                         m_tmpSelFromCell = m_Cell->GetFirstTerminal();
1244                 }
1245                 else
1246                 {
1247                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1248                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1249                                          wxHTML_FIND_NEAREST_BEFORE);
1250                     if (!m_tmpSelFromCell)
1251                         m_tmpSelFromCell = m_Cell->GetLastTerminal();
1252                 }
1253             }
1254
1255             wxHtmlCell *selcell = cell;
1256             if (!selcell)
1257             {
1258                 if (goingDown)
1259                 {
1260                     selcell = m_Cell->FindCellByPos(x, y,
1261                                                  wxHTML_FIND_NEAREST_BEFORE);
1262                     if (!selcell)
1263                         selcell = m_Cell->GetLastTerminal();
1264                 }
1265                 else
1266                 {
1267                     selcell = m_Cell->FindCellByPos(x, y,
1268                                                  wxHTML_FIND_NEAREST_AFTER);
1269                     if (!selcell)
1270                         selcell = m_Cell->GetFirstTerminal();
1271                 }
1272             }
1273
1274             // NB: it may *rarely* happen that the code above didn't find one
1275             //     of the cells, e.g. if wxHtmlWindow doesn't contain any
1276             //     visible cells.
1277             if ( selcell && m_tmpSelFromCell )
1278             {
1279                 if ( !m_selection )
1280                 {
1281                     // start selecting only if mouse movement was big enough
1282                     // (otherwise it was meant as mouse click, not selection):
1283                     const int PRECISION = 2;
1284                     wxPoint diff = m_tmpSelFromPos - wxPoint(x,y);
1285                     if (abs(diff.x) > PRECISION || abs(diff.y) > PRECISION)
1286                     {
1287                         m_selection = new wxHtmlSelection();
1288                     }
1289                 }
1290                 if ( m_selection )
1291                 {
1292                     if ( m_tmpSelFromCell->IsBefore(selcell) )
1293                     {
1294                         m_selection->Set(m_tmpSelFromPos, m_tmpSelFromCell,
1295                                          wxPoint(x,y), selcell);
1296                     }
1297                     else
1298                     {
1299                         m_selection->Set(wxPoint(x,y), selcell,
1300                                          m_tmpSelFromPos, m_tmpSelFromCell);
1301                     }
1302                     m_selection->ClearPrivPos();
1303                     Refresh();
1304                 }
1305             }
1306         }
1307
1308         // handle cursor and status bar text changes:
1309
1310         // NB: because we're passing in 'cell' and not 'm_Cell' (so that the
1311         //     leaf cell lookup isn't done twice), we need to adjust the
1312         //     position for the new root:
1313         wxPoint posInCell(x, y);
1314         if (cell)
1315             posInCell -= cell->GetAbsPos();
1316         wxHtmlWindowMouseHelper::HandleIdle(cell, posInCell);
1317     }
1318 }
1319
1320 #if wxUSE_CLIPBOARD
1321 void wxHtmlWindow::StopAutoScrolling()
1322 {
1323     if ( m_timerAutoScroll )
1324     {
1325         wxDELETE(m_timerAutoScroll);
1326     }
1327 }
1328
1329 void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event)
1330 {
1331     StopAutoScrolling();
1332     event.Skip();
1333 }
1334
1335 void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
1336 {
1337     // don't prevent the usual processing of the event from taking place
1338     event.Skip();
1339
1340     // when a captured mouse leave a scrolled window we start generate
1341     // scrolling events to allow, for example, extending selection beyond the
1342     // visible area in some controls
1343     if ( wxWindow::GetCapture() == this )
1344     {
1345         // where is the mouse leaving?
1346         int pos, orient;
1347         wxPoint pt = event.GetPosition();
1348         if ( pt.x < 0 )
1349         {
1350             orient = wxHORIZONTAL;
1351             pos = 0;
1352         }
1353         else if ( pt.y < 0 )
1354         {
1355             orient = wxVERTICAL;
1356             pos = 0;
1357         }
1358         else // we're lower or to the right of the window
1359         {
1360             wxSize size = GetClientSize();
1361             if ( pt.x > size.x )
1362             {
1363                 orient = wxHORIZONTAL;
1364                 pos = GetVirtualSize().x / wxHTML_SCROLL_STEP;
1365             }
1366             else if ( pt.y > size.y )
1367             {
1368                 orient = wxVERTICAL;
1369                 pos = GetVirtualSize().y / wxHTML_SCROLL_STEP;
1370             }
1371             else // this should be impossible
1372             {
1373                 // but seems to happen sometimes under wxMSW - maybe it's a bug
1374                 // there but for now just ignore it
1375
1376                 //wxFAIL_MSG( _T("can't understand where has mouse gone") );
1377
1378                 return;
1379             }
1380         }
1381
1382         // only start the auto scroll timer if the window can be scrolled in
1383         // this direction
1384         if ( !HasScrollbar(orient) )
1385             return;
1386
1387         delete m_timerAutoScroll;
1388         m_timerAutoScroll = new wxHtmlWinAutoScrollTimer
1389                                 (
1390                                     this,
1391                                     pos == 0 ? wxEVT_SCROLLWIN_LINEUP
1392                                              : wxEVT_SCROLLWIN_LINEDOWN,
1393                                     pos,
1394                                     orient
1395                                 );
1396         m_timerAutoScroll->Start(50); // FIXME: make configurable
1397     }
1398 }
1399
1400 void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
1401 {
1402     if ( IsSelectionEnabled() &&
1403             (event.GetKeyCode() == 'C' && event.CmdDown()) )
1404     {
1405         wxClipboardTextEvent evt(wxEVT_COMMAND_TEXT_COPY, GetId());
1406
1407         evt.SetEventObject(this);
1408
1409         GetEventHandler()->ProcessEvent(evt);
1410     }
1411 }
1412
1413 void wxHtmlWindow::OnCopy(wxCommandEvent& WXUNUSED(event))
1414 {
1415     (void) CopySelection();
1416 }
1417
1418 void wxHtmlWindow::OnClipboardEvent(wxClipboardTextEvent& WXUNUSED(event))
1419 {
1420     (void) CopySelection();
1421 }
1422
1423 void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event)
1424 {
1425     // select word under cursor:
1426     if ( IsSelectionEnabled() )
1427     {
1428         SelectWord(CalcUnscrolledPosition(event.GetPosition()));
1429
1430         (void) CopySelection(Primary);
1431
1432         m_lastDoubleClick = wxGetLocalTimeMillis();
1433     }
1434     else
1435         event.Skip();
1436 }
1437
1438 void wxHtmlWindow::SelectWord(const wxPoint& pos)
1439 {
1440     if ( m_Cell )
1441     {
1442         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1443         if ( cell )
1444         {
1445             delete m_selection;
1446             m_selection = new wxHtmlSelection();
1447             m_selection->Set(cell, cell);
1448             RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
1449                                wxSize(cell->GetWidth(), cell->GetHeight())));
1450         }
1451     }
1452 }
1453
1454 void wxHtmlWindow::SelectLine(const wxPoint& pos)
1455 {
1456     if ( m_Cell )
1457     {
1458         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1459         if ( cell )
1460         {
1461             // We use following heuristic to find a "line": let the line be all
1462             // cells in same container as the cell under mouse cursor that are
1463             // neither completely above nor completely bellow the clicked cell
1464             // (i.e. are likely to be words positioned on same line of text).
1465
1466             int y1 = cell->GetAbsPos().y;
1467             int y2 = y1 + cell->GetHeight();
1468             int y;
1469             const wxHtmlCell *c;
1470             const wxHtmlCell *before = NULL;
1471             const wxHtmlCell *after = NULL;
1472
1473             // find last cell of line:
1474             for ( c = cell->GetNext(); c; c = c->GetNext())
1475             {
1476                 y = c->GetAbsPos().y;
1477                 if ( y + c->GetHeight() > y1 && y < y2 )
1478                     after = c;
1479                 else
1480                     break;
1481             }
1482             if ( !after )
1483                 after = cell;
1484
1485             // find first cell of line:
1486             for ( c = cell->GetParent()->GetFirstChild();
1487                     c && c != cell; c = c->GetNext())
1488             {
1489                 y = c->GetAbsPos().y;
1490                 if ( y + c->GetHeight() > y1 && y < y2 )
1491                 {
1492                     if ( ! before )
1493                         before = c;
1494                 }
1495                 else
1496                     before = NULL;
1497             }
1498             if ( !before )
1499                 before = cell;
1500
1501             delete m_selection;
1502             m_selection = new wxHtmlSelection();
1503             m_selection->Set(before, after);
1504
1505             Refresh();
1506         }
1507     }
1508 }
1509
1510 void wxHtmlWindow::SelectAll()
1511 {
1512     if ( m_Cell )
1513     {
1514         delete m_selection;
1515         m_selection = new wxHtmlSelection();
1516         m_selection->Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
1517         Refresh();
1518     }
1519 }
1520
1521 #endif // wxUSE_CLIPBOARD
1522
1523
1524
1525 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
1526
1527 #if wxUSE_EXTENDED_RTTI
1528 IMPLEMENT_DYNAMIC_CLASS_XTI(wxHtmlWindow, wxScrolledWindow,"wx/html/htmlwin.h")
1529
1530 wxBEGIN_PROPERTIES_TABLE(wxHtmlWindow)
1531 /*
1532     TODO PROPERTIES
1533         style , wxHW_SCROLLBAR_AUTO
1534         borders , (dimension)
1535         url , string
1536         htmlcode , string
1537 */
1538 wxEND_PROPERTIES_TABLE()
1539
1540 wxBEGIN_HANDLERS_TABLE(wxHtmlWindow)
1541 wxEND_HANDLERS_TABLE()
1542
1543 wxCONSTRUCTOR_5( wxHtmlWindow , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
1544 #else
1545 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
1546 #endif
1547
1548 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
1549     EVT_SIZE(wxHtmlWindow::OnSize)
1550     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseDown)
1551     EVT_LEFT_UP(wxHtmlWindow::OnMouseUp)
1552     EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp)
1553     EVT_MOTION(wxHtmlWindow::OnMouseMove)
1554     EVT_ERASE_BACKGROUND(wxHtmlWindow::OnEraseBackground)
1555     EVT_PAINT(wxHtmlWindow::OnPaint)
1556 #if wxUSE_CLIPBOARD
1557     EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick)
1558     EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter)
1559     EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave)
1560     EVT_MOUSE_CAPTURE_LOST(wxHtmlWindow::OnMouseCaptureLost)
1561     EVT_KEY_UP(wxHtmlWindow::OnKeyUp)
1562     EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy)
1563     EVT_TEXT_COPY(wxID_ANY, wxHtmlWindow::OnClipboardEvent)
1564 #endif // wxUSE_CLIPBOARD
1565 END_EVENT_TABLE()
1566
1567 //-----------------------------------------------------------------------------
1568 // wxHtmlWindowInterface implementation in wxHtmlWindow
1569 //-----------------------------------------------------------------------------
1570
1571 void wxHtmlWindow::SetHTMLWindowTitle(const wxString& title)
1572 {
1573     OnSetTitle(title);
1574 }
1575
1576 void wxHtmlWindow::OnHTMLLinkClicked(const wxHtmlLinkInfo& link)
1577 {
1578     OnLinkClicked(link);
1579 }
1580
1581 wxHtmlOpeningStatus wxHtmlWindow::OnHTMLOpeningURL(wxHtmlURLType type,
1582                                                    const wxString& url,
1583                                                    wxString *redirect) const
1584 {
1585     return OnOpeningURL(type, url, redirect);
1586 }
1587
1588 wxPoint wxHtmlWindow::HTMLCoordsToWindow(wxHtmlCell *WXUNUSED(cell),
1589                                          const wxPoint& pos) const
1590 {
1591     return CalcScrolledPosition(pos);
1592 }
1593
1594 wxWindow* wxHtmlWindow::GetHTMLWindow()
1595 {
1596     return this;
1597 }
1598
1599 wxColour wxHtmlWindow::GetHTMLBackgroundColour() const
1600 {
1601     return GetBackgroundColour();
1602 }
1603
1604 void wxHtmlWindow::SetHTMLBackgroundColour(const wxColour& clr)
1605 {
1606     SetBackgroundColour(clr);
1607 }
1608
1609 void wxHtmlWindow::SetHTMLBackgroundImage(const wxBitmap& bmpBg)
1610 {
1611     SetBackgroundImage(bmpBg);
1612 }
1613
1614 void wxHtmlWindow::SetHTMLStatusText(const wxString& text)
1615 {
1616 #if wxUSE_STATUSBAR
1617     if (m_RelatedStatusBar != -1)
1618         m_RelatedFrame->SetStatusText(text, m_RelatedStatusBar);
1619 #else
1620     wxUnusedVar(text);
1621 #endif // wxUSE_STATUSBAR
1622 }
1623
1624 /*static*/
1625 wxCursor wxHtmlWindow::GetDefaultHTMLCursor(HTMLCursor type)
1626 {
1627     switch (type)
1628     {
1629         case HTMLCursor_Link:
1630             if ( !ms_cursorLink )
1631                 ms_cursorLink = new wxCursor(wxCURSOR_HAND);
1632             return *ms_cursorLink;
1633
1634         case HTMLCursor_Text:
1635             if ( !ms_cursorText )
1636                 ms_cursorText = new wxCursor(wxCURSOR_IBEAM);
1637             return *ms_cursorText;
1638
1639         case HTMLCursor_Default:
1640         default:
1641             return *wxSTANDARD_CURSOR;
1642     }
1643 }
1644
1645 wxCursor wxHtmlWindow::GetHTMLCursor(HTMLCursor type) const
1646 {
1647     return GetDefaultHTMLCursor(type);
1648 }
1649
1650
1651 //-----------------------------------------------------------------------------
1652 // wxHtmlWinModule
1653 //-----------------------------------------------------------------------------
1654
1655 // A module to allow initialization/cleanup
1656 // without calling these functions from app.cpp or from
1657 // the user's application.
1658
1659 class wxHtmlWinModule: public wxModule
1660 {
1661 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
1662 public:
1663     wxHtmlWinModule() : wxModule() {}
1664     bool OnInit() { return true; }
1665     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
1666 };
1667
1668 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
1669
1670
1671 // This hack forces the linker to always link in m_* files
1672 // (wxHTML doesn't work without handlers from these files)
1673 #include "wx/html/forcelnk.h"
1674 FORCE_WXHTML_MODULES()
1675
1676 #endif // wxUSE_HTML