src/html/htmlwin.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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
  11 #ifdef __GNUG__
  12 #pragma implementation "htmlwin.h"
  13 #pragma implementation "htmlproc.h"
  14 #endif
  15
  16 #include "wx/wxprec.h"
  17
  18 #include "wx/defs.h"
  19 #if wxUSE_HTML && wxUSE_STREAMS
  20
  21 #ifdef __BORDLANDC__
  22 #pragma hdrstop
  23 #endif
  24
  25 #ifndef WXPRECOMP
  26     #include "wx/log.h"
  27     #include "wx/intl.h"
  28     #include "wx/dcclient.h"
  29     #include "wx/frame.h"
  30 #endif
  31
  32 #include "wx/html/htmlwin.h"
  33 #include "wx/html/htmlproc.h"
  34 #include "wx/list.h"
  35
  36 #include "wx/arrimpl.cpp"
  37 #include "wx/listimpl.cpp"
  38
  39 //-----------------------------------------------------------------------------
  40 // wxHtmlHistoryItem
  41 //-----------------------------------------------------------------------------
  42
  43 // item of history list
  44 class WXDLLEXPORT wxHtmlHistoryItem
  45 {
  46 public:
  47     wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
  48     int GetPos() const {return m_Pos;}
  49     void SetPos(int p) {m_Pos = p;}
  50     const wxString& GetPage() const {return m_Page;}
  51     const wxString& GetAnchor() const {return m_Anchor;}
  52
  53 private:
  54     wxString m_Page;
  55     wxString m_Anchor;
  56     int m_Pos;
  57 };
  58
  59
  60 //-----------------------------------------------------------------------------
  61 // our private arrays:
  62 //-----------------------------------------------------------------------------
  63
  64 WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
  65 WX_DEFINE_OBJARRAY(wxHtmlHistoryArray);
  66
  67 WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
  68 WX_DEFINE_LIST(wxHtmlProcessorList);
  69
  70 //-----------------------------------------------------------------------------
  71 // wxHtmlWindow
  72 //-----------------------------------------------------------------------------
  73
  74
  75 void wxHtmlWindow::Init()
  76 {
  77     m_tmpMouseMoved = FALSE;
  78     m_tmpLastLink = NULL;
  79     m_tmpLastCell = NULL;
  80     m_tmpCanDrawLocks = 0;
  81     m_FS = new wxFileSystem();
  82     m_RelatedStatusBar = -1;
  83     m_RelatedFrame = NULL;
  84     m_TitleFormat = wxT("%s");
  85     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
  86     m_Cell = NULL;
  87     m_Parser = new wxHtmlWinParser(this);
  88     m_Parser->SetFS(m_FS);
  89     m_HistoryPos = -1;
  90     m_HistoryOn = TRUE;
  91     m_History = new wxHtmlHistoryArray;
  92     m_Processors = NULL;
  93     m_Style = 0;
  94     SetBorders(10);
  95 }
  96
  97 bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
  98                           const wxPoint& pos, const wxSize& size,
  99                           long style, const wxString& name)
 100 {
 101     if (!wxScrolledWindow::Create(parent, id, pos, size,
 102                                   style | wxVSCROLL | wxHSCROLL, name))
 103         return FALSE;
 104
 105     m_Style = style;
 106     SetPage(wxT("<html><body></body></html>"));
 107     return TRUE;
 108 }
 109
 110
 111 wxHtmlWindow::~wxHtmlWindow()
 112 {
 113     HistoryClear();
 114
 115     if (m_Cell) delete m_Cell;
 116
 117     delete m_Parser;
 118     delete m_FS;
 119     delete m_History;
 120     delete m_Processors;
 121 }
 122
 123
 124
 125 void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
 126 {
 127     m_RelatedFrame = frame;
 128     m_TitleFormat = format;
 129 }
 130
 131
 132
 133 void wxHtmlWindow::SetRelatedStatusBar(int bar)
 134 {
 135     m_RelatedStatusBar = bar;
 136 }
 137
 138
 139
 140 void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes)
 141 {
 142     wxString op = m_OpenedPage;
 143
 144     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 145     // fonts changed => contents invalid, so reload the page:
 146     SetPage(wxT("<html><body></body></html>"));
 147     if (!op.IsEmpty()) LoadPage(op);
 148 }
 149
 150
 151
 152 bool wxHtmlWindow::SetPage(const wxString& source)
 153 {
 154     wxString newsrc(source);
 155
 156     // pass HTML through registered processors:
 157     if (m_Processors || m_GlobalProcessors)
 158     {
 159         wxHtmlProcessorList::Node *nodeL, *nodeG;
 160         int prL, prG;
 161
 162         nodeL = (m_Processors) ? m_Processors->GetFirst() : NULL;
 163         nodeG = (m_GlobalProcessors) ? m_GlobalProcessors->GetFirst() : NULL;
 164
 165         // VS: there are two lists, global and local, both of them sorted by
 166         //     priority. Since we have to go through _both_ lists with
 167         //     decreasing priority, we "merge-sort" the lists on-line by
 168         //     processing that one of the two heads that has higher priority
 169         //     in every iteration
 170         while (nodeL || nodeG)
 171         {
 172             prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
 173             prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
 174             if (prL > prG)
 175             {
 176                 if (nodeL->GetData()->IsEnabled())
 177                     newsrc = nodeL->GetData()->Process(newsrc);
 178                 nodeL = nodeL->GetNext();
 179             }
 180             else // prL <= prG
 181             {
 182                 if (nodeG->GetData()->IsEnabled())
 183                     newsrc = nodeG->GetData()->Process(newsrc);
 184                 nodeG = nodeG->GetNext();
 185             }
 186         }
 187     }
 188
 189     // ...and run the parser on it:
 190     wxClientDC *dc = new wxClientDC(this);
 191     dc->SetMapMode(wxMM_TEXT);
 192     SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
 193     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 194     m_Parser->SetDC(dc);
 195     if (m_Cell)
 196     {
 197         delete m_Cell;
 198         m_Cell = NULL;
 199     }
 200     m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
 201     delete dc;
 202     m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 203     m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
 204     CreateLayout();
 205     if (m_tmpCanDrawLocks == 0)
 206         Refresh();
 207     return TRUE;
 208 }
 209
 210 bool wxHtmlWindow::AppendToPage(const wxString& source)
 211 {
 212     return SetPage(*(GetParser()->GetSource()) + source);
 213 }
 214
 215 bool wxHtmlWindow::LoadPage(const wxString& location)
 216 {
 217     wxBusyCursor busyCursor;
 218
 219     wxFSFile *f;
 220     bool rt_val;
 221     bool needs_refresh = FALSE;
 222
 223     m_tmpCanDrawLocks++;
 224     if (m_HistoryOn && (m_HistoryPos != -1))
 225     {
 226         // store scroll position into history item:
 227         int x, y;
 228         GetViewStart(&x, &y);
 229         (*m_History)[m_HistoryPos].SetPos(y);
 230     }
 231
 232     if (location[0] == wxT('#'))
 233     {
 234         // local anchor:
 235         wxString anch = location.Mid(1) /*1 to end*/;
 236         m_tmpCanDrawLocks--;
 237         rt_val = ScrollToAnchor(anch);
 238         m_tmpCanDrawLocks++;
 239     }
 240     else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
 241     {
 242         wxString anch = location.AfterFirst(wxT('#'));
 243         m_tmpCanDrawLocks--;
 244         rt_val = ScrollToAnchor(anch);
 245         m_tmpCanDrawLocks++;
 246     }
 247     else if (location.Find(wxT('#')) != wxNOT_FOUND &&
 248              (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
 249     {
 250         wxString anch = location.AfterFirst(wxT('#'));
 251         m_tmpCanDrawLocks--;
 252         rt_val = ScrollToAnchor(anch);
 253         m_tmpCanDrawLocks++;
 254     }
 255
 256     else
 257     {
 258         needs_refresh = TRUE;
 259         // load&display it:
 260         if (m_RelatedStatusBar != -1)
 261         {
 262             m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
 263             Refresh(FALSE);
 264         }
 265
 266         f = m_Parser->OpenURL(wxHTML_URL_PAGE, location);
 267
 268         if (f == NULL)
 269         {
 270             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 271             m_tmpCanDrawLocks--;
 272             return FALSE;
 273         }
 274
 275         else
 276         {
 277             wxNode *node;
 278             wxString src = wxEmptyString;
 279
 280             if (m_RelatedStatusBar != -1)
 281             {
 282                 wxString msg = _("Loading : ") + location;
 283                 m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
 284                 Refresh(FALSE);
 285             }
 286
 287             node = m_Filters.GetFirst();
 288             while (node)
 289             {
 290                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 291                 if (h->CanRead(*f))
 292                 {
 293                     src = h->ReadFile(*f);
 294                     break;
 295                 }
 296                 node = node->GetNext();
 297             }
 298             if (src == wxEmptyString)
 299             {
 300                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 301                 src = m_DefaultFilter->ReadFile(*f);
 302             }
 303
 304             m_FS->ChangePathTo(f->GetLocation());
 305             rt_val = SetPage(src);
 306             m_OpenedPage = f->GetLocation();
 307             if (f->GetAnchor() != wxEmptyString)
 308             {
 309                 ScrollToAnchor(f->GetAnchor());
 310             }
 311
 312             delete f;
 313
 314             if (m_RelatedStatusBar != -1) m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
 315         }
 316     }
 317
 318     if (m_HistoryOn) // add this page to history there:
 319     {
 320         int c = m_History->GetCount() - (m_HistoryPos + 1);
 321
 322         if (m_HistoryPos < 0 ||
 323             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 324             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 325         {
 326             m_HistoryPos++;
 327             for (int i = 0; i < c; i++)
 328                 m_History->RemoveAt(m_HistoryPos);
 329             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 330         }
 331     }
 332
 333     if (m_OpenedPageTitle == wxEmptyString)
 334         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 335
 336     if (needs_refresh)
 337     {
 338         m_tmpCanDrawLocks--;
 339         Refresh();
 340     }
 341     else
 342         m_tmpCanDrawLocks--;
 343
 344     return rt_val;
 345 }
 346
 347
 348
 349 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 350 {
 351     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 352     if (!c)
 353     {
 354         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 355         return FALSE;
 356     }
 357     else
 358     {
 359         int y;
 360
 361         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 362         Scroll(-1, y / wxHTML_SCROLL_STEP);
 363         m_OpenedAnchor = anchor;
 364         return TRUE;
 365     }
 366 }
 367
 368
 369 void wxHtmlWindow::OnSetTitle(const wxString& title)
 370 {
 371     if (m_RelatedFrame)
 372     {
 373         wxString tit;
 374         tit.Printf(m_TitleFormat, title.c_str());
 375         m_RelatedFrame->SetTitle(tit);
 376     }
 377     m_OpenedPageTitle = title;
 378 }
 379
 380
 381
 382
 383
 384 void wxHtmlWindow::CreateLayout()
 385 {
 386     int ClientWidth, ClientHeight;
 387
 388     if (!m_Cell) return;
 389
 390     if (m_Style & wxHW_SCROLLBAR_NEVER)
 391     {
 392         SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
 393         GetClientSize(&ClientWidth, &ClientHeight);
 394         m_Cell->Layout(ClientWidth);
 395     }
 396
 397     else {
 398         GetClientSize(&ClientWidth, &ClientHeight);
 399         m_Cell->Layout(ClientWidth);
 400         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 401         {
 402             SetScrollbars(
 403                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 404                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 405                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 406                   /*cheat: top-level frag is always container*/);
 407         }
 408         else /* we fit into window, no need for scrollbars */
 409         {
 410             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 411             GetClientSize(&ClientWidth, &ClientHeight);
 412             m_Cell->Layout(ClientWidth); // ...and relayout
 413         }
 414     }
 415 }
 416
 417
 418
 419 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 420 {
 421     wxString oldpath;
 422     wxString tmp;
 423     int p_fontsizes[7];
 424     wxString p_fff, p_ffn;
 425
 426     if (path != wxEmptyString)
 427     {
 428         oldpath = cfg->GetPath();
 429         cfg->SetPath(path);
 430     }
 431
 432     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 433     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 434     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 435     for (int i = 0; i < 7; i++)
 436     {
 437         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 438         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 439     }
 440     SetFonts(p_ffn, p_fff, p_fontsizes);
 441
 442     if (path != wxEmptyString)
 443         cfg->SetPath(oldpath);
 444 }
 445
 446
 447
 448 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 449 {
 450     wxString oldpath;
 451     wxString tmp;
 452
 453     if (path != wxEmptyString)
 454     {
 455         oldpath = cfg->GetPath();
 456         cfg->SetPath(path);
 457     }
 458
 459     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 460     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 461     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 462     for (int i = 0; i < 7; i++)
 463     {
 464         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 465         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 466     }
 467
 468     if (path != wxEmptyString)
 469         cfg->SetPath(oldpath);
 470 }
 471
 472
 473
 474 bool wxHtmlWindow::HistoryBack()
 475 {
 476     wxString a, l;
 477
 478     if (m_HistoryPos < 1) return FALSE;
 479
 480     // store scroll position into history item:
 481     int x, y;
 482     GetViewStart(&x, &y);
 483     (*m_History)[m_HistoryPos].SetPos(y);
 484
 485     // go to previous position:
 486     m_HistoryPos--;
 487
 488     l = (*m_History)[m_HistoryPos].GetPage();
 489     a = (*m_History)[m_HistoryPos].GetAnchor();
 490     m_HistoryOn = FALSE;
 491     m_tmpCanDrawLocks++;
 492     if (a == wxEmptyString) LoadPage(l);
 493     else LoadPage(l + wxT("#") + a);
 494     m_HistoryOn = TRUE;
 495     m_tmpCanDrawLocks--;
 496     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 497     Refresh();
 498     return TRUE;
 499 }
 500
 501 bool wxHtmlWindow::HistoryCanBack()
 502 {
 503     if (m_HistoryPos < 1) return FALSE;
 504     return TRUE ;
 505 }
 506
 507
 508 bool wxHtmlWindow::HistoryForward()
 509 {
 510     wxString a, l;
 511
 512     if (m_HistoryPos == -1) return FALSE;
 513     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
 514
 515     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 516
 517     m_HistoryPos++;
 518     l = (*m_History)[m_HistoryPos].GetPage();
 519     a = (*m_History)[m_HistoryPos].GetAnchor();
 520     m_HistoryOn = FALSE;
 521     m_tmpCanDrawLocks++;
 522     if (a == wxEmptyString) LoadPage(l);
 523     else LoadPage(l + wxT("#") + a);
 524     m_HistoryOn = TRUE;
 525     m_tmpCanDrawLocks--;
 526     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 527     Refresh();
 528     return TRUE;
 529 }
 530
 531 bool wxHtmlWindow::HistoryCanForward()
 532 {
 533     if (m_HistoryPos == -1) return FALSE;
 534     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
 535     return TRUE ;
 536 }
 537
 538
 539 void wxHtmlWindow::HistoryClear()
 540 {
 541     m_History->Empty();
 542     m_HistoryPos = -1;
 543 }
 544
 545 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 546 {
 547     if (!m_Processors)
 548     {
 549         m_Processors = new wxHtmlProcessorList;
 550         m_Processors->DeleteContents(TRUE);
 551     }
 552     wxHtmlProcessorList::Node *node;
 553
 554     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 555     {
 556         if (processor->GetPriority() > node->GetData()->GetPriority())
 557         {
 558             m_Processors->Insert(node, processor);
 559             return;
 560         }
 561     }
 562     m_Processors->Append(processor);
 563 }
 564
 565 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 566 {
 567     if (!m_GlobalProcessors)
 568     {
 569         m_GlobalProcessors = new wxHtmlProcessorList;
 570         m_GlobalProcessors->DeleteContents(TRUE);
 571     }
 572     wxHtmlProcessorList::Node *node;
 573
 574     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 575     {
 576         if (processor->GetPriority() > node->GetData()->GetPriority())
 577         {
 578             m_GlobalProcessors->Insert(node, processor);
 579             return;
 580         }
 581     }
 582     m_GlobalProcessors->Append(processor);
 583 }
 584
 585
 586
 587 wxList wxHtmlWindow::m_Filters;
 588 wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
 589 wxCursor *wxHtmlWindow::s_cur_hand = NULL;
 590 wxCursor *wxHtmlWindow::s_cur_arrow = NULL;
 591 wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
 592
 593 void wxHtmlWindow::CleanUpStatics()
 594 {
 595     delete m_DefaultFilter;
 596     m_DefaultFilter = NULL;
 597     m_Filters.DeleteContents(TRUE);
 598     m_Filters.Clear();
 599     delete m_GlobalProcessors;
 600     m_GlobalProcessors = NULL;
 601     delete s_cur_hand;
 602     delete s_cur_arrow;
 603 }
 604
 605
 606
 607 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 608 {
 609     m_Filters.Append(filter);
 610 }
 611
 612
 613
 614
 615 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 616 {
 617     LoadPage(link.GetHref());
 618 }
 619
 620 void wxHtmlWindow::OnCellClicked(wxHtmlCell *cell,
 621                                  wxCoord x, wxCoord y,
 622                                  const wxMouseEvent& event)
 623 {
 624     wxCHECK_RET( cell, _T("can't be called with NULL cell") );
 625
 626     cell->OnMouseClick(this, x, y, event);
 627 }
 628
 629 void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
 630                                     wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
 631 {
 632     // do nothing here
 633 }
 634
 635 void wxHtmlWindow::OnDraw(wxDC& dc)
 636 {
 637     if (m_tmpCanDrawLocks > 0 || m_Cell == NULL) return;
 638
 639     int x, y;
 640     wxRect rect = GetUpdateRegion().GetBox();
 641
 642     dc.SetMapMode(wxMM_TEXT);
 643     dc.SetBackgroundMode(wxTRANSPARENT);
 644     GetViewStart(&x, &y);
 645
 646     m_Cell->Draw(dc, 0, 0,
 647                  y * wxHTML_SCROLL_STEP + rect.GetTop(),
 648                  y * wxHTML_SCROLL_STEP + rect.GetBottom());
 649 }
 650
 651
 652
 653
 654 void wxHtmlWindow::OnSize(wxSizeEvent& event)
 655 {
 656     wxScrolledWindow::OnSize(event);
 657     CreateLayout();
 658     Refresh();
 659 }
 660
 661
 662 void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event)
 663 {
 664     m_tmpMouseMoved = TRUE;
 665
 666     if (event.ButtonDown())
 667     {
 668         if ( m_Cell )
 669         {
 670             int sx, sy;
 671             GetViewStart(&sx, &sy);
 672             sx *= wxHTML_SCROLL_STEP;
 673             sy *= wxHTML_SCROLL_STEP;
 674
 675             wxPoint pos = event.GetPosition();
 676             pos.x += sx;
 677             pos.y += sy;
 678
 679             wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
 680
 681             // VZ: is it possible that we don't find anything at all?
 682             // VS: yes. FindCellByPos returns terminal cell and
 683             //     containers may have empty borders
 684             if ( cell )
 685                 OnCellClicked(cell, pos.x, pos.y, event);
 686         }
 687     }
 688 }
 689
 690
 691
 692 void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
 693 {
 694     if (s_cur_hand == NULL)
 695     {
 696         s_cur_hand = new wxCursor(wxCURSOR_HAND);
 697         s_cur_arrow = new wxCursor(wxCURSOR_ARROW);
 698     }
 699
 700     if (m_tmpMouseMoved && (m_Cell != NULL))
 701     {
 702         int sx, sy;
 703         GetViewStart(&sx, &sy);
 704         sx *= wxHTML_SCROLL_STEP;
 705         sy *= wxHTML_SCROLL_STEP;
 706
 707         int x, y;
 708         wxGetMousePosition(&x, &y);
 709         ScreenToClient(&x, &y);
 710         x += sx;
 711         y += sy;
 712
 713         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
 714         if ( cell != m_tmpLastCell )
 715         {
 716             wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL;
 717
 718             if (lnk != m_tmpLastLink)
 719             {
 720                 if (lnk == NULL)
 721                 {
 722                     SetCursor(*s_cur_arrow);
 723                     if (m_RelatedStatusBar != -1)
 724                         m_RelatedFrame->SetStatusText(wxEmptyString, m_RelatedStatusBar);
 725                 }
 726                 else
 727                 {
 728                     SetCursor(*s_cur_hand);
 729                     if (m_RelatedStatusBar != -1)
 730                         m_RelatedFrame->SetStatusText(lnk->GetHref(), m_RelatedStatusBar);
 731                 }
 732                 m_tmpLastLink = lnk;
 733             }
 734
 735             m_tmpLastCell = cell;
 736         }
 737         else // mouse moved but stayed in the same cell
 738         {
 739             if ( cell )
 740                 OnCellMouseHover(cell, x, y);
 741         }
 742
 743         m_tmpMouseMoved = FALSE;
 744     }
 745 }
 746
 747
 748 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
 749
 750 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
 751
 752 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
 753     EVT_SIZE(wxHtmlWindow::OnSize)
 754     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent)
 755     EVT_RIGHT_DOWN(wxHtmlWindow::OnMouseEvent)
 756     EVT_MOTION(wxHtmlWindow::OnMouseEvent)
 757     EVT_IDLE(wxHtmlWindow::OnIdle)
 758 END_EVENT_TABLE()
 759
 760
 761
 762
 763
 764 // A module to allow initialization/cleanup
 765 // without calling these functions from app.cpp or from
 766 // the user's application.
 767
 768 class wxHtmlWinModule: public wxModule
 769 {
 770 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
 771 public:
 772     wxHtmlWinModule() : wxModule() {}
 773     bool OnInit() { return TRUE; }
 774     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
 775 };
 776
 777 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
 778
 779
 780 // This hack forces the linker to always link in m_* files
 781 // (wxHTML doesn't work without handlers from these files)
 782 #include "wx/html/forcelnk.h"
 783 FORCE_WXHTML_MODULES()
 784
 785 #endif