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