src/html/htmlwin.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/html/htmlwin.cpp
   3 // Purpose:     wxHtmlWindow class for parsing & displaying HTML (implementation)
   4 // Author:      Vaclav Slavik
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1999 Vaclav Slavik
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #include "wx/wxprec.h"
  11
  12 #ifdef __BORLANDC__
  13     #pragma hdrstop
  14 #endif
  15
  16 #if wxUSE_HTML && wxUSE_STREAMS
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/list.h"
  20     #include "wx/log.h"
  21     #include "wx/intl.h"
  22     #include "wx/dcclient.h"
  23     #include "wx/frame.h"
  24     #include "wx/dcmemory.h"
  25     #include "wx/timer.h"
  26     #include "wx/settings.h"
  27     #include "wx/dataobj.h"
  28     #include "wx/statusbr.h"
  29 #endif
  30
  31 #include "wx/html/htmlwin.h"
  32 #include "wx/html/htmlproc.h"
  33 #include "wx/clipbrd.h"
  34
  35 #include "wx/arrimpl.cpp"
  36 #include "wx/listimpl.cpp"
  37
  38 // uncomment this line to visually show the extent of the selection
  39 //#define DEBUG_HTML_SELECTION
  40
  41 // HTML events:
  42 IMPLEMENT_DYNAMIC_CLASS(wxHtmlLinkEvent, wxCommandEvent)
  43 IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellEvent, wxCommandEvent)
  44
  45 wxDEFINE_EVENT( wxEVT_COMMAND_HTML_CELL_CLICKED, wxHtmlCellEvent );
  46 wxDEFINE_EVENT( wxEVT_COMMAND_HTML_CELL_HOVER, wxHtmlCellEvent );
  47 wxDEFINE_EVENT( wxEVT_COMMAND_HTML_LINK_CLICKED, wxHtmlLinkEvent );
  48
  49
  50 #if wxUSE_CLIPBOARD
  51 // ----------------------------------------------------------------------------
  52 // wxHtmlWinAutoScrollTimer: the timer used to generate a stream of scroll
  53 // events when a captured mouse is held outside the window
  54 // ----------------------------------------------------------------------------
  55
  56 class wxHtmlWinAutoScrollTimer : public wxTimer
  57 {
  58 public:
  59     wxHtmlWinAutoScrollTimer(wxScrolledWindow *win,
  60                       wxEventType eventTypeToSend,
  61                       int pos, int orient)
  62     {
  63         m_win = win;
  64         m_eventType = eventTypeToSend;
  65         m_pos = pos;
  66         m_orient = orient;
  67     }
  68
  69     virtual void Notify();
  70
  71 private:
  72     wxScrolledWindow *m_win;
  73     wxEventType m_eventType;
  74     int m_pos,
  75         m_orient;
  76
  77     wxDECLARE_NO_COPY_CLASS(wxHtmlWinAutoScrollTimer);
  78 };
  79
  80 void wxHtmlWinAutoScrollTimer::Notify()
  81 {
  82     // only do all this as long as the window is capturing the mouse
  83     if ( wxWindow::GetCapture() != m_win )
  84     {
  85         Stop();
  86     }
  87     else // we still capture the mouse, continue generating events
  88     {
  89         // first scroll the window if we are allowed to do it
  90         wxScrollWinEvent event1(m_eventType, m_pos, m_orient);
  91         event1.SetEventObject(m_win);
  92         if ( m_win->GetEventHandler()->ProcessEvent(event1) )
  93         {
  94             // and then send a pseudo mouse-move event to refresh the selection
  95             wxMouseEvent event2(wxEVT_MOTION);
  96             wxGetMousePosition(&event2.m_x, &event2.m_y);
  97
  98             // the mouse event coordinates should be client, not screen as
  99             // returned by wxGetMousePosition
 100             wxWindow *parentTop = m_win;
 101             while ( parentTop->GetParent() )
 102                 parentTop = parentTop->GetParent();
 103             wxPoint ptOrig = parentTop->GetPosition();
 104             event2.m_x -= ptOrig.x;
 105             event2.m_y -= ptOrig.y;
 106
 107             event2.SetEventObject(m_win);
 108
 109             // FIXME: we don't fill in the other members - ok?
 110             m_win->GetEventHandler()->ProcessEvent(event2);
 111         }
 112         else // can't scroll further, stop
 113         {
 114             Stop();
 115         }
 116     }
 117 }
 118
 119 #endif // wxUSE_CLIPBOARD
 120
 121
 122
 123 //-----------------------------------------------------------------------------
 124 // wxHtmlHistoryItem
 125 //-----------------------------------------------------------------------------
 126
 127 // item of history list
 128 class WXDLLIMPEXP_HTML wxHtmlHistoryItem
 129 {
 130 public:
 131     wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
 132     int GetPos() const {return m_Pos;}
 133     void SetPos(int p) {m_Pos = p;}
 134     const wxString& GetPage() const {return m_Page;}
 135     const wxString& GetAnchor() const {return m_Anchor;}
 136
 137 private:
 138     wxString m_Page;
 139     wxString m_Anchor;
 140     int m_Pos;
 141 };
 142
 143
 144 //-----------------------------------------------------------------------------
 145 // our private arrays:
 146 //-----------------------------------------------------------------------------
 147
 148 WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
 149 WX_DEFINE_OBJARRAY(wxHtmlHistoryArray)
 150
 151 WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
 152 WX_DEFINE_LIST(wxHtmlProcessorList)
 153
 154 //-----------------------------------------------------------------------------
 155 // wxHtmlWindowMouseHelper
 156 //-----------------------------------------------------------------------------
 157
 158 wxHtmlWindowMouseHelper::wxHtmlWindowMouseHelper(wxHtmlWindowInterface *iface)
 159     : m_tmpMouseMoved(false),
 160       m_tmpLastLink(NULL),
 161       m_tmpLastCell(NULL),
 162       m_interface(iface)
 163 {
 164 }
 165
 166 void wxHtmlWindowMouseHelper::HandleMouseMoved()
 167 {
 168     m_tmpMouseMoved = true;
 169 }
 170
 171 bool wxHtmlWindowMouseHelper::HandleMouseClick(wxHtmlCell *rootCell,
 172                                                const wxPoint& pos,
 173                                                const wxMouseEvent& event)
 174 {
 175     if (!rootCell)
 176         return false;
 177
 178     wxHtmlCell *cell = rootCell->FindCellByPos(pos.x, pos.y);
 179     // this check is needed because FindCellByPos returns terminal cell and
 180     // containers may have empty borders -- in this case NULL will be
 181     // returned
 182     if (!cell)
 183         return false;
 184
 185     // adjust the coordinates to be relative to this cell:
 186     wxPoint relpos = pos - cell->GetAbsPos(rootCell);
 187
 188     return OnCellClicked(cell, relpos.x, relpos.y, event);
 189 }
 190
 191 void wxHtmlWindowMouseHelper::HandleIdle(wxHtmlCell *rootCell,
 192                                          const wxPoint& pos)
 193 {
 194     wxHtmlCell *cell = rootCell ? rootCell->FindCellByPos(pos.x, pos.y) : NULL;
 195
 196     if (cell != m_tmpLastCell)
 197     {
 198         wxHtmlLinkInfo *lnk = NULL;
 199         if (cell)
 200         {
 201             // adjust the coordinates to be relative to this cell:
 202             wxPoint relpos = pos - cell->GetAbsPos(rootCell);
 203             lnk = cell->GetLink(relpos.x, relpos.y);
 204         }
 205
 206         wxCursor cur;
 207         if (cell)
 208             cur = cell->GetMouseCursor(m_interface);
 209         else
 210             cur = m_interface->GetHTMLCursor(
 211                         wxHtmlWindowInterface::HTMLCursor_Default);
 212
 213         m_interface->GetHTMLWindow()->SetCursor(cur);
 214
 215         if (lnk != m_tmpLastLink)
 216         {
 217             if (lnk)
 218                 m_interface->SetHTMLStatusText(lnk->GetHref());
 219             else
 220                 m_interface->SetHTMLStatusText(wxEmptyString);
 221
 222             m_tmpLastLink = lnk;
 223         }
 224
 225         m_tmpLastCell = cell;
 226     }
 227     else // mouse moved but stayed in the same cell
 228     {
 229         if ( cell )
 230         {
 231             OnCellMouseHover(cell, pos.x, pos.y);
 232         }
 233     }
 234
 235     m_tmpMouseMoved = false;
 236 }
 237
 238 bool wxHtmlWindowMouseHelper::OnCellClicked(wxHtmlCell *cell,
 239                                             wxCoord x, wxCoord y,
 240                                             const wxMouseEvent& event)
 241 {
 242     wxHtmlCellEvent ev(wxEVT_COMMAND_HTML_CELL_CLICKED,
 243                        m_interface->GetHTMLWindow()->GetId(),
 244                        cell, wxPoint(x,y), event);
 245
 246     if (!m_interface->GetHTMLWindow()->GetEventHandler()->ProcessEvent(ev))
 247     {
 248         // if the event wasn't handled, do the default processing here:
 249
 250         wxASSERT_MSG( cell, _T("can't be called with NULL cell") );
 251
 252         cell->ProcessMouseClick(m_interface, ev.GetPoint(), ev.GetMouseEvent());
 253     }
 254
 255     // true if a link was clicked, false otherwise
 256     return ev.GetLinkClicked();
 257 }
 258
 259 void wxHtmlWindowMouseHelper::OnCellMouseHover(wxHtmlCell * cell,
 260                                                wxCoord x,
 261                                                wxCoord y)
 262 {
 263     wxHtmlCellEvent ev(wxEVT_COMMAND_HTML_CELL_HOVER,
 264                        m_interface->GetHTMLWindow()->GetId(),
 265                        cell, wxPoint(x,y), wxMouseEvent());
 266     m_interface->GetHTMLWindow()->GetEventHandler()->ProcessEvent(ev);
 267 }
 268
 269
 270
 271
 272 //-----------------------------------------------------------------------------
 273 // wxHtmlWindow
 274 //-----------------------------------------------------------------------------
 275
 276 wxList wxHtmlWindow::m_Filters;
 277 wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
 278 wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
 279 wxCursor *wxHtmlWindow::ms_cursorLink = NULL;
 280 wxCursor *wxHtmlWindow::ms_cursorText = NULL;
 281
 282 void wxHtmlWindow::CleanUpStatics()
 283 {
 284     wxDELETE(m_DefaultFilter);
 285     WX_CLEAR_LIST(wxList, m_Filters);
 286     if (m_GlobalProcessors)
 287         WX_CLEAR_LIST(wxHtmlProcessorList, *m_GlobalProcessors);
 288     wxDELETE(m_GlobalProcessors);
 289     wxDELETE(ms_cursorLink);
 290     wxDELETE(ms_cursorText);
 291 }
 292
 293 void wxHtmlWindow::Init()
 294 {
 295     m_tmpCanDrawLocks = 0;
 296     m_FS = new wxFileSystem();
 297 #if wxUSE_STATUSBAR
 298     m_RelatedStatusBar = NULL;
 299     m_RelatedStatusBarIndex = -1;
 300 #endif // wxUSE_STATUSBAR
 301     m_RelatedFrame = NULL;
 302     m_TitleFormat = wxT("%s");
 303     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 304     m_Cell = NULL;
 305     m_Parser = new wxHtmlWinParser(this);
 306     m_Parser->SetFS(m_FS);
 307     m_HistoryPos = -1;
 308     m_HistoryOn = true;
 309     m_History = new wxHtmlHistoryArray;
 310     m_Processors = NULL;
 311     SetBorders(10);
 312     m_selection = NULL;
 313     m_makingSelection = false;
 314 #if wxUSE_CLIPBOARD
 315     m_timerAutoScroll = NULL;
 316     m_lastDoubleClick = 0;
 317 #endif // wxUSE_CLIPBOARD
 318     m_tmpSelFromCell = NULL;
 319 }
 320
 321 bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
 322                           const wxPoint& pos, const wxSize& size,
 323                           long style, const wxString& name)
 324 {
 325     if (!wxScrolledWindow::Create(parent, id, pos, size,
 326                                   style | wxVSCROLL | wxHSCROLL,
 327                                   name))
 328         return false;
 329
 330     // We can't erase our background in EVT_ERASE_BACKGROUND handler and use
 331     // double buffering in EVT_PAINT handler as this requires blitting back
 332     // something already drawn on the window to the backing store bitmap when
 333     // handling EVT_PAINT but blitting in this direction is simply not
 334     // supported by OS X.
 335     //
 336     // So instead we use a hack with artificial EVT_ERASE_BACKGROUND generation
 337     // from OnPaint() and this means that we never need the "real" erase event
 338     // at all so disable it to avoid executing any user-defined handlers twice
 339     // (and to avoid processing unnecessary event if no handlers are defined).
 340     SetBackgroundStyle(wxBG_STYLE_PAINT);
 341
 342     SetPage(wxT("<html><body></body></html>"));
 343     return true;
 344 }
 345
 346
 347 wxHtmlWindow::~wxHtmlWindow()
 348 {
 349 #if wxUSE_CLIPBOARD
 350     StopAutoScrolling();
 351 #endif // wxUSE_CLIPBOARD
 352     HistoryClear();
 353
 354     delete m_selection;
 355
 356     delete m_Cell;
 357
 358     if ( m_Processors )
 359     {
 360         WX_CLEAR_LIST(wxHtmlProcessorList, *m_Processors);
 361     }
 362
 363     delete m_Parser;
 364     delete m_FS;
 365     delete m_History;
 366     delete m_Processors;
 367 }
 368
 369
 370
 371 void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
 372 {
 373     m_RelatedFrame = frame;
 374     m_TitleFormat = format;
 375 }
 376
 377
 378
 379 #if wxUSE_STATUSBAR
 380 void wxHtmlWindow::SetRelatedStatusBar(int index)
 381 {
 382     m_RelatedStatusBarIndex = index;
 383 }
 384
 385 void wxHtmlWindow::SetRelatedStatusBar(wxStatusBar* statusbar, int index)
 386 {
 387     m_RelatedStatusBar =  statusbar;
 388     m_RelatedStatusBarIndex = index;
 389 }
 390
 391 #endif // wxUSE_STATUSBAR
 392
 393
 394
 395 void wxHtmlWindow::SetFonts(const wxString& normal_face, const wxString& fixed_face, const int *sizes)
 396 {
 397     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 398
 399     // re-layout the page after changing fonts:
 400     DoSetPage(*(m_Parser->GetSource()));
 401 }
 402
 403 void wxHtmlWindow::SetStandardFonts(int size,
 404                                     const wxString& normal_face,
 405                                     const wxString& fixed_face)
 406 {
 407     m_Parser->SetStandardFonts(size, normal_face, fixed_face);
 408
 409     // re-layout the page after changing fonts:
 410     DoSetPage(*(m_Parser->GetSource()));
 411 }
 412
 413 bool wxHtmlWindow::SetPage(const wxString& source)
 414 {
 415     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 416     return DoSetPage(source);
 417 }
 418
 419 bool wxHtmlWindow::DoSetPage(const wxString& source)
 420 {
 421     wxString newsrc(source);
 422
 423     wxDELETE(m_selection);
 424
 425     // we will soon delete all the cells, so clear pointers to them:
 426     m_tmpSelFromCell = NULL;
 427
 428     // pass HTML through registered processors:
 429     if (m_Processors || m_GlobalProcessors)
 430     {
 431         wxHtmlProcessorList::compatibility_iterator nodeL, nodeG;
 432         int prL, prG;
 433
 434         if ( m_Processors )
 435             nodeL = m_Processors->GetFirst();
 436         if ( m_GlobalProcessors )
 437             nodeG = m_GlobalProcessors->GetFirst();
 438
 439         // VS: there are two lists, global and local, both of them sorted by
 440         //     priority. Since we have to go through _both_ lists with
 441         //     decreasing priority, we "merge-sort" the lists on-line by
 442         //     processing that one of the two heads that has higher priority
 443         //     in every iteration
 444         while (nodeL || nodeG)
 445         {
 446             prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
 447             prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
 448             if (prL > prG)
 449             {
 450                 if (nodeL->GetData()->IsEnabled())
 451                     newsrc = nodeL->GetData()->Process(newsrc);
 452                 nodeL = nodeL->GetNext();
 453             }
 454             else // prL <= prG
 455             {
 456                 if (nodeG->GetData()->IsEnabled())
 457                     newsrc = nodeG->GetData()->Process(newsrc);
 458                 nodeG = nodeG->GetNext();
 459             }
 460         }
 461     }
 462
 463     // ...and run the parser on it:
 464     wxClientDC *dc = new wxClientDC(this);
 465     dc->SetMapMode(wxMM_TEXT);
 466     SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
 467     SetBackgroundImage(wxNullBitmap);
 468
 469     m_Parser->SetDC(dc);
 470     if (m_Cell)
 471     {
 472         delete m_Cell;
 473         m_Cell = NULL;
 474     }
 475     m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
 476     delete dc;
 477     m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 478     m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
 479     CreateLayout();
 480     if (m_tmpCanDrawLocks == 0)
 481         Refresh();
 482     return true;
 483 }
 484
 485 bool wxHtmlWindow::AppendToPage(const wxString& source)
 486 {
 487     return DoSetPage(*(GetParser()->GetSource()) + source);
 488 }
 489
 490 bool wxHtmlWindow::LoadPage(const wxString& location)
 491 {
 492     wxCHECK_MSG( !location.empty(), false, "location must be non-empty" );
 493
 494     wxBusyCursor busyCursor;
 495
 496     bool rt_val;
 497     bool needs_refresh = false;
 498
 499     m_tmpCanDrawLocks++;
 500     if (m_HistoryOn && (m_HistoryPos != -1))
 501     {
 502         // store scroll position into history item:
 503         int x, y;
 504         GetViewStart(&x, &y);
 505         (*m_History)[m_HistoryPos].SetPos(y);
 506     }
 507
 508     // first check if we're moving to an anchor in the same page
 509     size_t posLocalAnchor = location.Find('#');
 510     if ( posLocalAnchor != wxString::npos && posLocalAnchor != 0 )
 511     {
 512         // check if the part before the anchor is the same as the (either
 513         // relative or absolute) URI of the current page
 514         const wxString beforeAnchor = location.substr(0, posLocalAnchor);
 515         if ( beforeAnchor != m_OpenedPage &&
 516                 m_FS->GetPath() + beforeAnchor != m_OpenedPage )
 517         {
 518             // indicate that we're not moving to a local anchor
 519             posLocalAnchor = wxString::npos;
 520         }
 521     }
 522
 523     if ( posLocalAnchor != wxString::npos )
 524     {
 525         m_tmpCanDrawLocks--;
 526         rt_val = ScrollToAnchor(location.substr(posLocalAnchor + 1));
 527         m_tmpCanDrawLocks++;
 528     }
 529     else // moving to another page
 530     {
 531         needs_refresh = true;
 532 #if wxUSE_STATUSBAR
 533         // load&display it:
 534         if (m_RelatedStatusBarIndex != -1)
 535         {
 536             SetHTMLStatusText(_("Connecting..."));
 537             Refresh(false);
 538         }
 539 #endif // wxUSE_STATUSBAR
 540
 541         wxFSFile *f = m_Parser->OpenURL(wxHTML_URL_PAGE, location);
 542
 543         // try to interpret 'location' as filename instead of URL:
 544         if (f == NULL)
 545         {
 546             wxFileName fn(location);
 547             wxString location2 = wxFileSystem::FileNameToURL(fn);
 548             f = m_Parser->OpenURL(wxHTML_URL_PAGE, location2);
 549         }
 550
 551         if (f == NULL)
 552         {
 553             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 554             m_tmpCanDrawLocks--;
 555             SetHTMLStatusText(wxEmptyString);
 556             return false;
 557         }
 558
 559         else
 560         {
 561             wxList::compatibility_iterator node;
 562             wxString src = wxEmptyString;
 563
 564 #if wxUSE_STATUSBAR
 565             if (m_RelatedStatusBarIndex != -1)
 566             {
 567                 wxString msg = _("Loading : ") + location;
 568                 SetHTMLStatusText(msg);
 569                 Refresh(false);
 570             }
 571 #endif // wxUSE_STATUSBAR
 572
 573             node = m_Filters.GetFirst();
 574             while (node)
 575             {
 576                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 577                 if (h->CanRead(*f))
 578                 {
 579                     src = h->ReadFile(*f);
 580                     break;
 581                 }
 582                 node = node->GetNext();
 583             }
 584             if (src == wxEmptyString)
 585             {
 586                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 587                 src = m_DefaultFilter->ReadFile(*f);
 588             }
 589
 590             m_FS->ChangePathTo(f->GetLocation());
 591             rt_val = SetPage(src);
 592             m_OpenedPage = f->GetLocation();
 593             if (f->GetAnchor() != wxEmptyString)
 594             {
 595                 ScrollToAnchor(f->GetAnchor());
 596             }
 597
 598             delete f;
 599
 600 #if wxUSE_STATUSBAR
 601             if (m_RelatedStatusBarIndex != -1)
 602             {
 603                 SetHTMLStatusText(_("Done"));
 604             }
 605 #endif // wxUSE_STATUSBAR
 606         }
 607     }
 608
 609     if (m_HistoryOn) // add this page to history there:
 610     {
 611         int c = m_History->GetCount() - (m_HistoryPos + 1);
 612
 613         if (m_HistoryPos < 0 ||
 614             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 615             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 616         {
 617             m_HistoryPos++;
 618             for (int i = 0; i < c; i++)
 619                 m_History->RemoveAt(m_HistoryPos);
 620             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 621         }
 622     }
 623
 624     if (m_OpenedPageTitle == wxEmptyString)
 625         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 626
 627     if (needs_refresh)
 628     {
 629         m_tmpCanDrawLocks--;
 630         Refresh();
 631     }
 632     else
 633         m_tmpCanDrawLocks--;
 634
 635     return rt_val;
 636 }
 637
 638
 639 bool wxHtmlWindow::LoadFile(const wxFileName& filename)
 640 {
 641     wxString url = wxFileSystem::FileNameToURL(filename);
 642     return LoadPage(url);
 643 }
 644
 645
 646 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 647 {
 648     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 649     if (!c)
 650     {
 651         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 652         return false;
 653     }
 654     else
 655     {
 656         int y;
 657
 658         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 659         Scroll(-1, y / wxHTML_SCROLL_STEP);
 660         m_OpenedAnchor = anchor;
 661         return true;
 662     }
 663 }
 664
 665
 666 void wxHtmlWindow::OnSetTitle(const wxString& title)
 667 {
 668     if (m_RelatedFrame)
 669     {
 670         wxString tit;
 671         tit.Printf(m_TitleFormat, title.c_str());
 672         m_RelatedFrame->SetTitle(tit);
 673     }
 674     m_OpenedPageTitle = title;
 675 }
 676
 677
 678
 679
 680
 681 void wxHtmlWindow::CreateLayout()
 682 {
 683     int ClientWidth, ClientHeight;
 684
 685     if (!m_Cell) return;
 686
 687     if ( HasFlag(wxHW_SCROLLBAR_NEVER) )
 688     {
 689         SetScrollbars(1, 1, 0, 0); // always off
 690         GetClientSize(&ClientWidth, &ClientHeight);
 691         m_Cell->Layout(ClientWidth);
 692     }
 693     else // !wxHW_SCROLLBAR_NEVER
 694     {
 695         GetClientSize(&ClientWidth, &ClientHeight);
 696         m_Cell->Layout(ClientWidth);
 697         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 698         {
 699             SetScrollbars(
 700                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 701                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 702                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 703                   /*cheat: top-level frag is always container*/);
 704         }
 705         else /* we fit into window, no need for scrollbars */
 706         {
 707             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 708             GetClientSize(&ClientWidth, &ClientHeight);
 709             m_Cell->Layout(ClientWidth); // ...and relayout
 710         }
 711     }
 712 }
 713
 714
 715
 716 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 717 {
 718     wxString oldpath;
 719     wxString tmp;
 720     int p_fontsizes[7];
 721     wxString p_fff, p_ffn;
 722
 723     if (path != wxEmptyString)
 724     {
 725         oldpath = cfg->GetPath();
 726         cfg->SetPath(path);
 727     }
 728
 729     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 730     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 731     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 732     for (int i = 0; i < 7; i++)
 733     {
 734         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 735         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 736     }
 737     SetFonts(p_ffn, p_fff, p_fontsizes);
 738
 739     if (path != wxEmptyString)
 740         cfg->SetPath(oldpath);
 741 }
 742
 743
 744
 745 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 746 {
 747     wxString oldpath;
 748     wxString tmp;
 749
 750     if (path != wxEmptyString)
 751     {
 752         oldpath = cfg->GetPath();
 753         cfg->SetPath(path);
 754     }
 755
 756     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 757     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 758     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 759     for (int i = 0; i < 7; i++)
 760     {
 761         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 762         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 763     }
 764
 765     if (path != wxEmptyString)
 766         cfg->SetPath(oldpath);
 767 }
 768
 769
 770
 771 bool wxHtmlWindow::HistoryBack()
 772 {
 773     wxString a, l;
 774
 775     if (m_HistoryPos < 1) return false;
 776
 777     // store scroll position into history item:
 778     int x, y;
 779     GetViewStart(&x, &y);
 780     (*m_History)[m_HistoryPos].SetPos(y);
 781
 782     // go to previous position:
 783     m_HistoryPos--;
 784
 785     l = (*m_History)[m_HistoryPos].GetPage();
 786     a = (*m_History)[m_HistoryPos].GetAnchor();
 787     m_HistoryOn = false;
 788     m_tmpCanDrawLocks++;
 789     if (a == wxEmptyString) LoadPage(l);
 790     else LoadPage(l + wxT("#") + a);
 791     m_HistoryOn = true;
 792     m_tmpCanDrawLocks--;
 793     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 794     Refresh();
 795     return true;
 796 }
 797
 798 bool wxHtmlWindow::HistoryCanBack()
 799 {
 800     if (m_HistoryPos < 1) return false;
 801     return true ;
 802 }
 803
 804
 805 bool wxHtmlWindow::HistoryForward()
 806 {
 807     wxString a, l;
 808
 809     if (m_HistoryPos == -1) return false;
 810     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 811
 812     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 813
 814     m_HistoryPos++;
 815     l = (*m_History)[m_HistoryPos].GetPage();
 816     a = (*m_History)[m_HistoryPos].GetAnchor();
 817     m_HistoryOn = false;
 818     m_tmpCanDrawLocks++;
 819     if (a == wxEmptyString) LoadPage(l);
 820     else LoadPage(l + wxT("#") + a);
 821     m_HistoryOn = true;
 822     m_tmpCanDrawLocks--;
 823     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 824     Refresh();
 825     return true;
 826 }
 827
 828 bool wxHtmlWindow::HistoryCanForward()
 829 {
 830     if (m_HistoryPos == -1) return false;
 831     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 832     return true ;
 833 }
 834
 835
 836 void wxHtmlWindow::HistoryClear()
 837 {
 838     m_History->Empty();
 839     m_HistoryPos = -1;
 840 }
 841
 842 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 843 {
 844     if (!m_Processors)
 845     {
 846         m_Processors = new wxHtmlProcessorList;
 847     }
 848     wxHtmlProcessorList::compatibility_iterator node;
 849
 850     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 851     {
 852         if (processor->GetPriority() > node->GetData()->GetPriority())
 853         {
 854             m_Processors->Insert(node, processor);
 855             return;
 856         }
 857     }
 858     m_Processors->Append(processor);
 859 }
 860
 861 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 862 {
 863     if (!m_GlobalProcessors)
 864     {
 865         m_GlobalProcessors = new wxHtmlProcessorList;
 866     }
 867     wxHtmlProcessorList::compatibility_iterator node;
 868
 869     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 870     {
 871         if (processor->GetPriority() > node->GetData()->GetPriority())
 872         {
 873             m_GlobalProcessors->Insert(node, processor);
 874             return;
 875         }
 876     }
 877     m_GlobalProcessors->Append(processor);
 878 }
 879
 880
 881
 882 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 883 {
 884     m_Filters.Append(filter);
 885 }
 886
 887
 888 bool wxHtmlWindow::IsSelectionEnabled() const
 889 {
 890 #if wxUSE_CLIPBOARD
 891     return !HasFlag(wxHW_NO_SELECTION);
 892 #else
 893     return false;
 894 #endif
 895 }
 896
 897
 898 #if wxUSE_CLIPBOARD
 899 wxString wxHtmlWindow::DoSelectionToText(wxHtmlSelection *sel)
 900 {
 901     if ( !sel )
 902         return wxEmptyString;
 903
 904     wxClientDC dc(this);
 905     wxString text;
 906
 907     wxHtmlTerminalCellsInterator i(sel->GetFromCell(), sel->GetToCell());
 908     const wxHtmlCell *prev = NULL;
 909
 910     while ( i )
 911     {
 912         // When converting HTML content to plain text, the entire paragraph
 913         // (container in wxHTML) goes on single line. A new paragraph (that
 914         // should go on its own line) has its own container. Therefore, the
 915         // simplest way of detecting where to insert newlines in plain text
 916         // is to check if the parent container changed -- if it did, we moved
 917         // to a new paragraph.
 918         if ( prev && prev->GetParent() != i->GetParent() )
 919             text << '\n';
 920
 921         // NB: we don't need to pass the selection to ConvertToText() in the
 922         //     middle of the selected text; it's only useful when only part of
 923         //     a cell is selected
 924         text << i->ConvertToText(sel);
 925
 926         prev = *i;
 927         ++i;
 928     }
 929     return text;
 930 }
 931
 932 wxString wxHtmlWindow::ToText()
 933 {
 934     if (m_Cell)
 935     {
 936         wxHtmlSelection sel;
 937         sel.Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
 938         return DoSelectionToText(&sel);
 939     }
 940     else
 941         return wxEmptyString;
 942 }
 943
 944 #endif // wxUSE_CLIPBOARD
 945
 946 bool wxHtmlWindow::CopySelection(ClipboardType t)
 947 {
 948 #if wxUSE_CLIPBOARD
 949     if ( m_selection )
 950     {
 951 #if defined(__UNIX__) && !defined(__WXMAC__)
 952         wxTheClipboard->UsePrimarySelection(t == Primary);
 953 #else // !__UNIX__
 954         // Primary selection exists only under X11, so don't do anything under
 955         // the other platforms when we try to access it
 956         //
 957         // TODO: this should be abstracted at wxClipboard level!
 958         if ( t == Primary )
 959             return false;
 960 #endif // __UNIX__/!__UNIX__
 961
 962         if ( wxTheClipboard->Open() )
 963         {
 964             const wxString txt(SelectionToText());
 965             wxTheClipboard->SetData(new wxTextDataObject(txt));
 966             wxTheClipboard->Close();
 967             wxLogTrace(_T("wxhtmlselection"),
 968                        _("Copied to clipboard:\"%s\""), txt.c_str());
 969
 970             return true;
 971         }
 972     }
 973 #else
 974     wxUnusedVar(t);
 975 #endif // wxUSE_CLIPBOARD
 976
 977     return false;
 978 }
 979
 980
 981 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 982 {
 983     wxHtmlLinkEvent event(GetId(), link);
 984     event.SetEventObject(this);
 985     if (!GetEventHandler()->ProcessEvent(event))
 986     {
 987         // the default behaviour is to load the URL in this window
 988         const wxMouseEvent *e = event.GetLinkInfo().GetEvent();
 989         if (e == NULL || e->LeftUp())
 990             LoadPage(event.GetLinkInfo().GetHref());
 991     }
 992 }
 993
 994 void wxHtmlWindow::DoEraseBackground(wxDC& dc)
 995 {
 996     // if we don't have any background bitmap we just fill it with background
 997     // colour and we also must do it if the background bitmap is not fully
 998     // opaque as otherwise junk could be left there
 999     if ( !m_bmpBg.IsOk() || m_bmpBg.GetMask() )
1000     {
1001         dc.SetBackground(GetBackgroundColour());
1002         dc.Clear();
1003     }
1004
1005     if ( m_bmpBg.IsOk() )
1006     {
1007         // draw the background bitmap tiling it over the entire window area
1008         const wxSize sz = GetClientSize();
1009         const wxSize sizeBmp(m_bmpBg.GetWidth(), m_bmpBg.GetHeight());
1010         for ( wxCoord x = 0; x < sz.x; x += sizeBmp.x )
1011         {
1012             for ( wxCoord y = 0; y < sz.y; y += sizeBmp.y )
1013             {
1014                 dc.DrawBitmap(m_bmpBg, x, y, true /* use mask */);
1015             }
1016         }
1017     }
1018 }
1019
1020 void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
1021 {
1022     wxPaintDC dcPaint(this);
1023
1024     if (m_tmpCanDrawLocks > 0 || m_Cell == NULL)
1025         return;
1026
1027     int x, y;
1028     GetViewStart(&x, &y);
1029     const wxRect rect = GetUpdateRegion().GetBox();
1030     const wxSize sz = GetClientSize();
1031
1032     // set up the DC we're drawing on: if the window is already double buffered
1033     // we do it directly on wxPaintDC, otherwise we allocate a backing store
1034     // buffer and compose the drawing there and then blit it to screen all at
1035     // once
1036     wxDC *dc;
1037     wxMemoryDC dcm;
1038     if ( IsDoubleBuffered() )
1039     {
1040         dc = &dcPaint;
1041     }
1042     else // window is not double buffered by the system, do it ourselves
1043     {
1044         if ( !m_backBuffer.IsOk() )
1045             m_backBuffer.Create(sz.x, sz.y);
1046         dcm.SelectObject(m_backBuffer);
1047         dc = &dcm;
1048     }
1049
1050     PrepareDC(*dc);
1051
1052     // erase the background: for compatibility, we must generate the event to
1053     // allow the user-defined handlers to do it
1054     wxEraseEvent eraseEvent(GetId(), dc);
1055     eraseEvent.SetEventObject(this);
1056     if ( !ProcessWindowEvent(eraseEvent) )
1057     {
1058         // erase background ourselves
1059         DoEraseBackground(*dc);
1060     }
1061     //else: background erased by the user-defined handler
1062
1063
1064     // draw the HTML window contents
1065     dc->SetMapMode(wxMM_TEXT);
1066     dc->SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
1067
1068     wxHtmlRenderingInfo rinfo;
1069     wxDefaultHtmlRenderingStyle rstyle;
1070     rinfo.SetSelection(m_selection);
1071     rinfo.SetStyle(&rstyle);
1072     m_Cell->Draw(*dc, 0, 0,
1073                  y * wxHTML_SCROLL_STEP + rect.GetTop(),
1074                  y * wxHTML_SCROLL_STEP + rect.GetBottom(),
1075                  rinfo);
1076
1077 #ifdef DEBUG_HTML_SELECTION
1078     {
1079     int xc, yc, x, y;
1080     wxGetMousePosition(&xc, &yc);
1081     ScreenToClient(&xc, &yc);
1082     CalcUnscrolledPosition(xc, yc, &x, &y);
1083     wxHtmlCell *at = m_Cell->FindCellByPos(x, y);
1084     wxHtmlCell *before =
1085         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_BEFORE);
1086     wxHtmlCell *after =
1087         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_AFTER);
1088
1089     dc->SetBrush(*wxTRANSPARENT_BRUSH);
1090     dc->SetPen(*wxBLACK_PEN);
1091     if (at)
1092         dc->DrawRectangle(at->GetAbsPos(),
1093                           wxSize(at->GetWidth(),at->GetHeight()));
1094     dc->SetPen(*wxGREEN_PEN);
1095     if (before)
1096         dc->DrawRectangle(before->GetAbsPos().x+1, before->GetAbsPos().y+1,
1097                           before->GetWidth()-2,before->GetHeight()-2);
1098     dc->SetPen(*wxRED_PEN);
1099     if (after)
1100         dc->DrawRectangle(after->GetAbsPos().x+2, after->GetAbsPos().y+2,
1101                           after->GetWidth()-4,after->GetHeight()-4);
1102     }
1103 #endif // DEBUG_HTML_SELECTION
1104
1105     if ( dc != &dcPaint )
1106     {
1107         dc->SetDeviceOrigin(0,0);
1108         dcPaint.Blit(0, rect.GetTop(),
1109                      sz.x, rect.GetBottom() - rect.GetTop() + 1,
1110                      dc,
1111                      0, rect.GetTop());
1112     }
1113 }
1114
1115
1116
1117
1118 void wxHtmlWindow::OnSize(wxSizeEvent& event)
1119 {
1120     event.Skip();
1121
1122     m_backBuffer = wxNullBitmap;
1123
1124     CreateLayout();
1125
1126     // Recompute selection if necessary:
1127     if ( m_selection )
1128     {
1129         m_selection->Set(m_selection->GetFromCell(),
1130                          m_selection->GetToCell());
1131         m_selection->ClearPrivPos();
1132     }
1133
1134     Refresh();
1135 }
1136
1137
1138 void wxHtmlWindow::OnMouseMove(wxMouseEvent& WXUNUSED(event))
1139 {
1140     wxHtmlWindowMouseHelper::HandleMouseMoved();
1141 }
1142
1143 void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
1144 {
1145 #if wxUSE_CLIPBOARD
1146     if ( event.LeftDown() && IsSelectionEnabled() )
1147     {
1148         const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
1149         if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
1150         {
1151             SelectLine(CalcUnscrolledPosition(event.GetPosition()));
1152
1153             (void) CopySelection();
1154         }
1155         else
1156         {
1157             m_makingSelection = true;
1158
1159             if ( m_selection )
1160             {
1161                 wxDELETE(m_selection);
1162                 Refresh();
1163             }
1164             m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
1165             m_tmpSelFromCell = NULL;
1166
1167             CaptureMouse();
1168         }
1169     }
1170 #endif // wxUSE_CLIPBOARD
1171
1172     // in any case, let the default handler set focus to this window
1173     event.Skip();
1174 }
1175
1176 void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
1177 {
1178 #if wxUSE_CLIPBOARD
1179     if ( m_makingSelection )
1180     {
1181         ReleaseMouse();
1182         m_makingSelection = false;
1183
1184         // if m_selection=NULL, the user didn't move the mouse far enough from
1185         // starting point and the mouse up event is part of a click, the user
1186         // is not selecting text:
1187         if ( m_selection )
1188         {
1189             CopySelection(Primary);
1190
1191             // we don't want mouse up event that ended selecting to be
1192             // handled as mouse click and e.g. follow hyperlink:
1193             return;
1194         }
1195     }
1196 #endif // wxUSE_CLIPBOARD
1197
1198     wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
1199     wxHtmlWindowMouseHelper::HandleMouseClick(m_Cell, pos, event);
1200 }
1201
1202 #if wxUSE_CLIPBOARD
1203 void wxHtmlWindow::OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
1204 {
1205     if ( !m_makingSelection )
1206         return;
1207
1208     // discard the selecting operation
1209     m_makingSelection = false;
1210     wxDELETE(m_selection);
1211     m_tmpSelFromCell = NULL;
1212     Refresh();
1213 }
1214 #endif // wxUSE_CLIPBOARD
1215
1216
1217 void wxHtmlWindow::OnInternalIdle()
1218 {
1219     wxWindow::OnInternalIdle();
1220
1221     if (m_Cell != NULL && DidMouseMove())
1222     {
1223 #ifdef DEBUG_HTML_SELECTION
1224         Refresh();
1225 #endif
1226         int xc, yc, x, y;
1227         wxGetMousePosition(&xc, &yc);
1228         ScreenToClient(&xc, &yc);
1229         CalcUnscrolledPosition(xc, yc, &x, &y);
1230
1231         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
1232
1233         // handle selection update:
1234         if ( m_makingSelection )
1235         {
1236             if ( !m_tmpSelFromCell )
1237                 m_tmpSelFromCell = m_Cell->FindCellByPos(
1238                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y);
1239
1240             // NB: a trick - we adjust selFromPos to be upper left or bottom
1241             //     right corner of the first cell of the selection depending
1242             //     on whether the mouse is moving to the right or to the left.
1243             //     This gives us more "natural" behaviour when selecting
1244             //     a line (specifically, first cell of the next line is not
1245             //     included if you drag selection from left to right over
1246             //     entire line):
1247             wxPoint dirFromPos;
1248             if ( !m_tmpSelFromCell )
1249             {
1250                 dirFromPos = m_tmpSelFromPos;
1251             }
1252             else
1253             {
1254                 dirFromPos = m_tmpSelFromCell->GetAbsPos();
1255                 if ( x < m_tmpSelFromPos.x )
1256                 {
1257                     dirFromPos.x += m_tmpSelFromCell->GetWidth();
1258                     dirFromPos.y += m_tmpSelFromCell->GetHeight();
1259                 }
1260             }
1261             bool goingDown = dirFromPos.y < y ||
1262                              (dirFromPos.y == y && dirFromPos.x < x);
1263
1264             // determine selection span:
1265             if ( /*still*/ !m_tmpSelFromCell )
1266             {
1267                 if (goingDown)
1268                 {
1269                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1270                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1271                                          wxHTML_FIND_NEAREST_AFTER);
1272                     if (!m_tmpSelFromCell)
1273                         m_tmpSelFromCell = m_Cell->GetFirstTerminal();
1274                 }
1275                 else
1276                 {
1277                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1278                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1279                                          wxHTML_FIND_NEAREST_BEFORE);
1280                     if (!m_tmpSelFromCell)
1281                         m_tmpSelFromCell = m_Cell->GetLastTerminal();
1282                 }
1283             }
1284
1285             wxHtmlCell *selcell = cell;
1286             if (!selcell)
1287             {
1288                 if (goingDown)
1289                 {
1290                     selcell = m_Cell->FindCellByPos(x, y,
1291                                                  wxHTML_FIND_NEAREST_BEFORE);
1292                     if (!selcell)
1293                         selcell = m_Cell->GetLastTerminal();
1294                 }
1295                 else
1296                 {
1297                     selcell = m_Cell->FindCellByPos(x, y,
1298                                                  wxHTML_FIND_NEAREST_AFTER);
1299                     if (!selcell)
1300                         selcell = m_Cell->GetFirstTerminal();
1301                 }
1302             }
1303
1304             // NB: it may *rarely* happen that the code above didn't find one
1305             //     of the cells, e.g. if wxHtmlWindow doesn't contain any
1306             //     visible cells.
1307             if ( selcell && m_tmpSelFromCell )
1308             {
1309                 if ( !m_selection )
1310                 {
1311                     // start selecting only if mouse movement was big enough
1312                     // (otherwise it was meant as mouse click, not selection):
1313                     const int PRECISION = 2;
1314                     wxPoint diff = m_tmpSelFromPos - wxPoint(x,y);
1315                     if (abs(diff.x) > PRECISION || abs(diff.y) > PRECISION)
1316                     {
1317                         m_selection = new wxHtmlSelection();
1318                     }
1319                 }
1320                 if ( m_selection )
1321                 {
1322                     if ( m_tmpSelFromCell->IsBefore(selcell) )
1323                     {
1324                         m_selection->Set(m_tmpSelFromPos, m_tmpSelFromCell,
1325                                          wxPoint(x,y), selcell);
1326                     }
1327                     else
1328                     {
1329                         m_selection->Set(wxPoint(x,y), selcell,
1330                                          m_tmpSelFromPos, m_tmpSelFromCell);
1331                     }
1332                     m_selection->ClearPrivPos();
1333                     Refresh();
1334                 }
1335             }
1336         }
1337
1338         // handle cursor and status bar text changes:
1339
1340         // NB: because we're passing in 'cell' and not 'm_Cell' (so that the
1341         //     leaf cell lookup isn't done twice), we need to adjust the
1342         //     position for the new root:
1343         wxPoint posInCell(x, y);
1344         if (cell)
1345             posInCell -= cell->GetAbsPos();
1346         wxHtmlWindowMouseHelper::HandleIdle(cell, posInCell);
1347     }
1348 }
1349
1350 #if wxUSE_CLIPBOARD
1351 void wxHtmlWindow::StopAutoScrolling()
1352 {
1353     if ( m_timerAutoScroll )
1354     {
1355         wxDELETE(m_timerAutoScroll);
1356     }
1357 }
1358
1359 void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event)
1360 {
1361     StopAutoScrolling();
1362     event.Skip();
1363 }
1364
1365 void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
1366 {
1367     // don't prevent the usual processing of the event from taking place
1368     event.Skip();
1369
1370     // when a captured mouse leave a scrolled window we start generate
1371     // scrolling events to allow, for example, extending selection beyond the
1372     // visible area in some controls
1373     if ( wxWindow::GetCapture() == this )
1374     {
1375         // where is the mouse leaving?
1376         int pos, orient;
1377         wxPoint pt = event.GetPosition();
1378         if ( pt.x < 0 )
1379         {
1380             orient = wxHORIZONTAL;
1381             pos = 0;
1382         }
1383         else if ( pt.y < 0 )
1384         {
1385             orient = wxVERTICAL;
1386             pos = 0;
1387         }
1388         else // we're lower or to the right of the window
1389         {
1390             wxSize size = GetClientSize();
1391             if ( pt.x > size.x )
1392             {
1393                 orient = wxHORIZONTAL;
1394                 pos = GetVirtualSize().x / wxHTML_SCROLL_STEP;
1395             }
1396             else if ( pt.y > size.y )
1397             {
1398                 orient = wxVERTICAL;
1399                 pos = GetVirtualSize().y / wxHTML_SCROLL_STEP;
1400             }
1401             else // this should be impossible
1402             {
1403                 // but seems to happen sometimes under wxMSW - maybe it's a bug
1404                 // there but for now just ignore it
1405
1406                 //wxFAIL_MSG( _T("can't understand where has mouse gone") );
1407
1408                 return;
1409             }
1410         }
1411
1412         // only start the auto scroll timer if the window can be scrolled in
1413         // this direction
1414         if ( !HasScrollbar(orient) )
1415             return;
1416
1417         delete m_timerAutoScroll;
1418         m_timerAutoScroll = new wxHtmlWinAutoScrollTimer
1419                                 (
1420                                     this,
1421                                     pos == 0 ? wxEVT_SCROLLWIN_LINEUP
1422                                              : wxEVT_SCROLLWIN_LINEDOWN,
1423                                     pos,
1424                                     orient
1425                                 );
1426         m_timerAutoScroll->Start(50); // FIXME: make configurable
1427     }
1428 }
1429
1430 void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
1431 {
1432     if ( IsSelectionEnabled() &&
1433             (event.GetKeyCode() == 'C' && event.CmdDown()) )
1434     {
1435         wxClipboardTextEvent evt(wxEVT_COMMAND_TEXT_COPY, GetId());
1436
1437         evt.SetEventObject(this);
1438
1439         GetEventHandler()->ProcessEvent(evt);
1440     }
1441 }
1442
1443 void wxHtmlWindow::OnCopy(wxCommandEvent& WXUNUSED(event))
1444 {
1445     (void) CopySelection();
1446 }
1447
1448 void wxHtmlWindow::OnClipboardEvent(wxClipboardTextEvent& WXUNUSED(event))
1449 {
1450     (void) CopySelection();
1451 }
1452
1453 void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event)
1454 {
1455     // select word under cursor:
1456     if ( IsSelectionEnabled() )
1457     {
1458         SelectWord(CalcUnscrolledPosition(event.GetPosition()));
1459
1460         (void) CopySelection(Primary);
1461
1462         m_lastDoubleClick = wxGetLocalTimeMillis();
1463     }
1464     else
1465         event.Skip();
1466 }
1467
1468 void wxHtmlWindow::SelectWord(const wxPoint& pos)
1469 {
1470     if ( m_Cell )
1471     {
1472         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1473         if ( cell )
1474         {
1475             delete m_selection;
1476             m_selection = new wxHtmlSelection();
1477             m_selection->Set(cell, cell);
1478             RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
1479                                wxSize(cell->GetWidth(), cell->GetHeight())));
1480         }
1481     }
1482 }
1483
1484 void wxHtmlWindow::SelectLine(const wxPoint& pos)
1485 {
1486     if ( m_Cell )
1487     {
1488         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1489         if ( cell )
1490         {
1491             // We use following heuristic to find a "line": let the line be all
1492             // cells in same container as the cell under mouse cursor that are
1493             // neither completely above nor completely bellow the clicked cell
1494             // (i.e. are likely to be words positioned on same line of text).
1495
1496             int y1 = cell->GetAbsPos().y;
1497             int y2 = y1 + cell->GetHeight();
1498             int y;
1499             const wxHtmlCell *c;
1500             const wxHtmlCell *before = NULL;
1501             const wxHtmlCell *after = NULL;
1502
1503             // find last cell of line:
1504             for ( c = cell->GetNext(); c; c = c->GetNext())
1505             {
1506                 y = c->GetAbsPos().y;
1507                 if ( y + c->GetHeight() > y1 && y < y2 )
1508                     after = c;
1509                 else
1510                     break;
1511             }
1512             if ( !after )
1513                 after = cell;
1514
1515             // find first cell of line:
1516             for ( c = cell->GetParent()->GetFirstChild();
1517                     c && c != cell; c = c->GetNext())
1518             {
1519                 y = c->GetAbsPos().y;
1520                 if ( y + c->GetHeight() > y1 && y < y2 )
1521                 {
1522                     if ( ! before )
1523                         before = c;
1524                 }
1525                 else
1526                     before = NULL;
1527             }
1528             if ( !before )
1529                 before = cell;
1530
1531             delete m_selection;
1532             m_selection = new wxHtmlSelection();
1533             m_selection->Set(before, after);
1534
1535             Refresh();
1536         }
1537     }
1538 }
1539
1540 void wxHtmlWindow::SelectAll()
1541 {
1542     if ( m_Cell )
1543     {
1544         delete m_selection;
1545         m_selection = new wxHtmlSelection();
1546         m_selection->Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
1547         Refresh();
1548     }
1549 }
1550
1551 #endif // wxUSE_CLIPBOARD
1552
1553
1554
1555 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
1556
1557 #if wxUSE_EXTENDED_RTTI
1558 IMPLEMENT_DYNAMIC_CLASS_XTI(wxHtmlWindow, wxScrolledWindow,"wx/html/htmlwin.h")
1559
1560 wxBEGIN_PROPERTIES_TABLE(wxHtmlWindow)
1561 /*
1562     TODO PROPERTIES
1563         style , wxHW_SCROLLBAR_AUTO
1564         borders , (dimension)
1565         url , string
1566         htmlcode , string
1567 */
1568 wxEND_PROPERTIES_TABLE()
1569
1570 wxBEGIN_HANDLERS_TABLE(wxHtmlWindow)
1571 wxEND_HANDLERS_TABLE()
1572
1573 wxCONSTRUCTOR_5( wxHtmlWindow , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
1574 #else
1575 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
1576 #endif
1577
1578 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
1579     EVT_SIZE(wxHtmlWindow::OnSize)
1580     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseDown)
1581     EVT_LEFT_UP(wxHtmlWindow::OnMouseUp)
1582     EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp)
1583     EVT_MOTION(wxHtmlWindow::OnMouseMove)
1584     EVT_PAINT(wxHtmlWindow::OnPaint)
1585 #if wxUSE_CLIPBOARD
1586     EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick)
1587     EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter)
1588     EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave)
1589     EVT_MOUSE_CAPTURE_LOST(wxHtmlWindow::OnMouseCaptureLost)
1590     EVT_KEY_UP(wxHtmlWindow::OnKeyUp)
1591     EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy)
1592     EVT_TEXT_COPY(wxID_ANY, wxHtmlWindow::OnClipboardEvent)
1593 #endif // wxUSE_CLIPBOARD
1594 END_EVENT_TABLE()
1595
1596 //-----------------------------------------------------------------------------
1597 // wxHtmlWindowInterface implementation in wxHtmlWindow
1598 //-----------------------------------------------------------------------------
1599
1600 void wxHtmlWindow::SetHTMLWindowTitle(const wxString& title)
1601 {
1602     OnSetTitle(title);
1603 }
1604
1605 void wxHtmlWindow::OnHTMLLinkClicked(const wxHtmlLinkInfo& link)
1606 {
1607     OnLinkClicked(link);
1608 }
1609
1610 wxHtmlOpeningStatus wxHtmlWindow::OnHTMLOpeningURL(wxHtmlURLType type,
1611                                                    const wxString& url,
1612                                                    wxString *redirect) const
1613 {
1614     return OnOpeningURL(type, url, redirect);
1615 }
1616
1617 wxPoint wxHtmlWindow::HTMLCoordsToWindow(wxHtmlCell *WXUNUSED(cell),
1618                                          const wxPoint& pos) const
1619 {
1620     return CalcScrolledPosition(pos);
1621 }
1622
1623 wxWindow* wxHtmlWindow::GetHTMLWindow()
1624 {
1625     return this;
1626 }
1627
1628 wxColour wxHtmlWindow::GetHTMLBackgroundColour() const
1629 {
1630     return GetBackgroundColour();
1631 }
1632
1633 void wxHtmlWindow::SetHTMLBackgroundColour(const wxColour& clr)
1634 {
1635     SetBackgroundColour(clr);
1636 }
1637
1638 void wxHtmlWindow::SetHTMLBackgroundImage(const wxBitmap& bmpBg)
1639 {
1640     SetBackgroundImage(bmpBg);
1641 }
1642
1643 void wxHtmlWindow::SetHTMLStatusText(const wxString& text)
1644 {
1645 #if wxUSE_STATUSBAR
1646     if (m_RelatedStatusBarIndex != -1)
1647     {
1648         if (m_RelatedStatusBar)
1649         {
1650             m_RelatedStatusBar->SetStatusText(text, m_RelatedStatusBarIndex);
1651         }
1652         else if (m_RelatedFrame)
1653         {
1654             m_RelatedFrame->SetStatusText(text, m_RelatedStatusBarIndex);
1655         }
1656     }
1657 #else
1658     wxUnusedVar(text);
1659 #endif // wxUSE_STATUSBAR
1660 }
1661
1662 /*static*/
1663 wxCursor wxHtmlWindow::GetDefaultHTMLCursor(HTMLCursor type)
1664 {
1665     switch (type)
1666     {
1667         case HTMLCursor_Link:
1668             if ( !ms_cursorLink )
1669                 ms_cursorLink = new wxCursor(wxCURSOR_HAND);
1670             return *ms_cursorLink;
1671
1672         case HTMLCursor_Text:
1673             if ( !ms_cursorText )
1674                 ms_cursorText = new wxCursor(wxCURSOR_IBEAM);
1675             return *ms_cursorText;
1676
1677         case HTMLCursor_Default:
1678         default:
1679             return *wxSTANDARD_CURSOR;
1680     }
1681 }
1682
1683 wxCursor wxHtmlWindow::GetHTMLCursor(HTMLCursor type) const
1684 {
1685     return GetDefaultHTMLCursor(type);
1686 }
1687
1688
1689 //-----------------------------------------------------------------------------
1690 // wxHtmlWinModule
1691 //-----------------------------------------------------------------------------
1692
1693 // A module to allow initialization/cleanup
1694 // without calling these functions from app.cpp or from
1695 // the user's application.
1696
1697 class wxHtmlWinModule: public wxModule
1698 {
1699 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
1700 public:
1701     wxHtmlWinModule() : wxModule() {}
1702     bool OnInit() { return true; }
1703     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
1704 };
1705
1706 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
1707
1708
1709 // This hack forces the linker to always link in m_* files
1710 // (wxHTML doesn't work without handlers from these files)
1711 #include "wx/html/forcelnk.h"
1712 FORCE_WXHTML_MODULES()
1713
1714 #endif // wxUSE_HTML