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[wxWidgets.git] / 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 if (m_Cell)
472 {
473 delete m_Cell;
474 // notice that it's important to set m_Cell to NULL here before calling
475 // Parse() below, even if it will be overwritten by its return value:
476 // without this we may crash if it's used from inside Parse()
477 m_Cell = NULL;
478 }
479 m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
480 delete dc;
481 m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
482 m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
483 CreateLayout();
484 if (m_tmpCanDrawLocks == 0)
485 Refresh();
486 return true;
487 }
488
489 bool wxHtmlWindow::AppendToPage(const wxString& source)
490 {
491 return DoSetPage(*(GetParser()->GetSource()) + source);
492 }
493
494 bool wxHtmlWindow::LoadPage(const wxString& location)
495 {
496 wxCHECK_MSG( !location.empty(), false, "location must be non-empty" );
497
498 wxBusyCursor busyCursor;
499
500 bool rt_val;
501 bool needs_refresh = false;
502
503 m_tmpCanDrawLocks++;
504 if (m_HistoryOn && (m_HistoryPos != -1))
505 {
506 // store scroll position into history item:
507 int x, y;
508 GetViewStart(&x, &y);
509 (*m_History)[m_HistoryPos].SetPos(y);
510 }
511
512 // first check if we're moving to an anchor in the same page
513 size_t posLocalAnchor = location.Find('#');
514 if ( posLocalAnchor != wxString::npos && posLocalAnchor != 0 )
515 {
516 // check if the part before the anchor is the same as the (either
517 // relative or absolute) URI of the current page
518 const wxString beforeAnchor = location.substr(0, posLocalAnchor);
519 if ( beforeAnchor != m_OpenedPage &&
520 m_FS->GetPath() + beforeAnchor != m_OpenedPage )
521 {
522 // indicate that we're not moving to a local anchor
523 posLocalAnchor = wxString::npos;
524 }
525 }
526
527 if ( posLocalAnchor != wxString::npos )
528 {
529 m_tmpCanDrawLocks--;
530 rt_val = ScrollToAnchor(location.substr(posLocalAnchor + 1));
531 m_tmpCanDrawLocks++;
532 }
533 else // moving to another page
534 {
535 needs_refresh = true;
536 #if wxUSE_STATUSBAR
537 // load&display it:
538 if (m_RelatedStatusBarIndex != -1)
539 {
540 SetHTMLStatusText(_("Connecting..."));
541 Refresh(false);
542 }
543 #endif // wxUSE_STATUSBAR
544
545 wxFSFile *f = m_Parser->OpenURL(wxHTML_URL_PAGE, location);
546
547 // try to interpret 'location' as filename instead of URL:
548 if (f == NULL)
549 {
550 wxFileName fn(location);
551 wxString location2 = wxFileSystem::FileNameToURL(fn);
552 f = m_Parser->OpenURL(wxHTML_URL_PAGE, location2);
553 }
554
555 if (f == NULL)
556 {
557 wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
558 m_tmpCanDrawLocks--;
559 SetHTMLStatusText(wxEmptyString);
560 return false;
561 }
562
563 else
564 {
565 wxList::compatibility_iterator node;
566 wxString src = wxEmptyString;
567
568 #if wxUSE_STATUSBAR
569 if (m_RelatedStatusBarIndex != -1)
570 {
571 wxString msg = _("Loading : ") + location;
572 SetHTMLStatusText(msg);
573 Refresh(false);
574 }
575 #endif // wxUSE_STATUSBAR
576
577 node = m_Filters.GetFirst();
578 while (node)
579 {
580 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
581 if (h->CanRead(*f))
582 {
583 src = h->ReadFile(*f);
584 break;
585 }
586 node = node->GetNext();
587 }
588 if (src == wxEmptyString)
589 {
590 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
591 src = m_DefaultFilter->ReadFile(*f);
592 }
593
594 m_FS->ChangePathTo(f->GetLocation());
595 rt_val = SetPage(src);
596 m_OpenedPage = f->GetLocation();
597 if (f->GetAnchor() != wxEmptyString)
598 {
599 ScrollToAnchor(f->GetAnchor());
600 }
601
602 delete f;
603
604 #if wxUSE_STATUSBAR
605 if (m_RelatedStatusBarIndex != -1)
606 {
607 SetHTMLStatusText(_("Done"));
608 }
609 #endif // wxUSE_STATUSBAR
610 }
611 }
612
613 if (m_HistoryOn) // add this page to history there:
614 {
615 int c = m_History->GetCount() - (m_HistoryPos + 1);
616
617 if (m_HistoryPos < 0 ||
618 (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
619 (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
620 {
621 m_HistoryPos++;
622 for (int i = 0; i < c; i++)
623 m_History->RemoveAt(m_HistoryPos);
624 m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
625 }
626 }
627
628 if (m_OpenedPageTitle == wxEmptyString)
629 OnSetTitle(wxFileNameFromPath(m_OpenedPage));
630
631 if (needs_refresh)
632 {
633 m_tmpCanDrawLocks--;
634 Refresh();
635 }
636 else
637 m_tmpCanDrawLocks--;
638
639 return rt_val;
640 }
641
642
643 bool wxHtmlWindow::LoadFile(const wxFileName& filename)
644 {
645 wxString url = wxFileSystem::FileNameToURL(filename);
646 return LoadPage(url);
647 }
648
649
650 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
651 {
652 const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
653 if (!c)
654 {
655 wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
656 return false;
657 }
658 else
659 {
660 // Go to next visible cell in current container, if it exists. This
661 // yields a bit better (even though still imperfect) results in that
662 // there's better chance of using a suitable cell for upper Y
663 // coordinate value. See bug #11406 for additional discussion.
664 const wxHtmlCell *c_save = c;
665 while ( c && c->IsFormattingCell() )
666 c = c->GetNext();
667 if ( !c )
668 c = c_save;
669
670 int y;
671
672 for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
673 Scroll(-1, y / wxHTML_SCROLL_STEP);
674 m_OpenedAnchor = anchor;
675 return true;
676 }
677 }
678
679
680 void wxHtmlWindow::OnSetTitle(const wxString& title)
681 {
682 if (m_RelatedFrame)
683 {
684 wxString tit;
685 tit.Printf(m_TitleFormat, title.c_str());
686 m_RelatedFrame->SetTitle(tit);
687 }
688 m_OpenedPageTitle = title;
689 }
690
691
692
693
694
695 void wxHtmlWindow::CreateLayout()
696 {
697 int ClientWidth, ClientHeight;
698
699 if (!m_Cell) return;
700
701 if ( HasFlag(wxHW_SCROLLBAR_NEVER) )
702 {
703 SetScrollbars(1, 1, 0, 0); // always off
704 GetClientSize(&ClientWidth, &ClientHeight);
705 m_Cell->Layout(ClientWidth);
706 }
707 else // !wxHW_SCROLLBAR_NEVER
708 {
709 GetClientSize(&ClientWidth, &ClientHeight);
710 m_Cell->Layout(ClientWidth);
711 if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
712 {
713 SetScrollbars(
714 wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
715 m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
716 (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
717 /*cheat: top-level frag is always container*/);
718 }
719 else /* we fit into window, no need for scrollbars */
720 {
721 SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
722 GetClientSize(&ClientWidth, &ClientHeight);
723 m_Cell->Layout(ClientWidth); // ...and relayout
724 }
725 }
726 }
727
728
729
730 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
731 {
732 wxString oldpath;
733 wxString tmp;
734 int p_fontsizes[7];
735 wxString p_fff, p_ffn;
736
737 if (path != wxEmptyString)
738 {
739 oldpath = cfg->GetPath();
740 cfg->SetPath(path);
741 }
742
743 m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
744 p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
745 p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
746 for (int i = 0; i < 7; i++)
747 {
748 tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
749 p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
750 }
751 SetFonts(p_ffn, p_fff, p_fontsizes);
752
753 if (path != wxEmptyString)
754 cfg->SetPath(oldpath);
755 }
756
757
758
759 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
760 {
761 wxString oldpath;
762 wxString tmp;
763
764 if (path != wxEmptyString)
765 {
766 oldpath = cfg->GetPath();
767 cfg->SetPath(path);
768 }
769
770 cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
771 cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
772 cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
773 for (int i = 0; i < 7; i++)
774 {
775 tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
776 cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
777 }
778
779 if (path != wxEmptyString)
780 cfg->SetPath(oldpath);
781 }
782
783
784
785 bool wxHtmlWindow::HistoryBack()
786 {
787 wxString a, l;
788
789 if (m_HistoryPos < 1) return false;
790
791 // store scroll position into history item:
792 int x, y;
793 GetViewStart(&x, &y);
794 (*m_History)[m_HistoryPos].SetPos(y);
795
796 // go to previous position:
797 m_HistoryPos--;
798
799 l = (*m_History)[m_HistoryPos].GetPage();
800 a = (*m_History)[m_HistoryPos].GetAnchor();
801 m_HistoryOn = false;
802 m_tmpCanDrawLocks++;
803 if (a == wxEmptyString) LoadPage(l);
804 else LoadPage(l + wxT("#") + a);
805 m_HistoryOn = true;
806 m_tmpCanDrawLocks--;
807 Scroll(0, (*m_History)[m_HistoryPos].GetPos());
808 Refresh();
809 return true;
810 }
811
812 bool wxHtmlWindow::HistoryCanBack()
813 {
814 if (m_HistoryPos < 1) return false;
815 return true ;
816 }
817
818
819 bool wxHtmlWindow::HistoryForward()
820 {
821 wxString a, l;
822
823 if (m_HistoryPos == -1) return false;
824 if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
825
826 m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
827
828 m_HistoryPos++;
829 l = (*m_History)[m_HistoryPos].GetPage();
830 a = (*m_History)[m_HistoryPos].GetAnchor();
831 m_HistoryOn = false;
832 m_tmpCanDrawLocks++;
833 if (a == wxEmptyString) LoadPage(l);
834 else LoadPage(l + wxT("#") + a);
835 m_HistoryOn = true;
836 m_tmpCanDrawLocks--;
837 Scroll(0, (*m_History)[m_HistoryPos].GetPos());
838 Refresh();
839 return true;
840 }
841
842 bool wxHtmlWindow::HistoryCanForward()
843 {
844 if (m_HistoryPos == -1) return false;
845 if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
846 return true ;
847 }
848
849
850 void wxHtmlWindow::HistoryClear()
851 {
852 m_History->Empty();
853 m_HistoryPos = -1;
854 }
855
856 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
857 {
858 if (!m_Processors)
859 {
860 m_Processors = new wxHtmlProcessorList;
861 }
862 wxHtmlProcessorList::compatibility_iterator node;
863
864 for (node = m_Processors->GetFirst(); node; node = node->GetNext())
865 {
866 if (processor->GetPriority() > node->GetData()->GetPriority())
867 {
868 m_Processors->Insert(node, processor);
869 return;
870 }
871 }
872 m_Processors->Append(processor);
873 }
874
875 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
876 {
877 if (!m_GlobalProcessors)
878 {
879 m_GlobalProcessors = new wxHtmlProcessorList;
880 }
881 wxHtmlProcessorList::compatibility_iterator node;
882
883 for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
884 {
885 if (processor->GetPriority() > node->GetData()->GetPriority())
886 {
887 m_GlobalProcessors->Insert(node, processor);
888 return;
889 }
890 }
891 m_GlobalProcessors->Append(processor);
892 }
893
894
895
896 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
897 {
898 m_Filters.Append(filter);
899 }
900
901
902 bool wxHtmlWindow::IsSelectionEnabled() const
903 {
904 #if wxUSE_CLIPBOARD
905 return !HasFlag(wxHW_NO_SELECTION);
906 #else
907 return false;
908 #endif
909 }
910
911
912 #if wxUSE_CLIPBOARD
913 wxString wxHtmlWindow::DoSelectionToText(wxHtmlSelection *sel)
914 {
915 if ( !sel )
916 return wxEmptyString;
917
918 wxClientDC dc(this);
919 wxString text;
920
921 wxHtmlTerminalCellsInterator i(sel->GetFromCell(), sel->GetToCell());
922 const wxHtmlCell *prev = NULL;
923
924 while ( i )
925 {
926 // When converting HTML content to plain text, the entire paragraph
927 // (container in wxHTML) goes on single line. A new paragraph (that
928 // should go on its own line) has its own container. Therefore, the
929 // simplest way of detecting where to insert newlines in plain text
930 // is to check if the parent container changed -- if it did, we moved
931 // to a new paragraph.
932 if ( prev && prev->GetParent() != i->GetParent() )
933 text << '\n';
934
935 // NB: we don't need to pass the selection to ConvertToText() in the
936 // middle of the selected text; it's only useful when only part of
937 // a cell is selected
938 text << i->ConvertToText(sel);
939
940 prev = *i;
941 ++i;
942 }
943 return text;
944 }
945
946 wxString wxHtmlWindow::ToText()
947 {
948 if (m_Cell)
949 {
950 wxHtmlSelection sel;
951 sel.Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
952 return DoSelectionToText(&sel);
953 }
954 else
955 return wxEmptyString;
956 }
957
958 #endif // wxUSE_CLIPBOARD
959
960 bool wxHtmlWindow::CopySelection(ClipboardType t)
961 {
962 #if wxUSE_CLIPBOARD
963 if ( m_selection )
964 {
965 #if defined(__UNIX__) && !defined(__WXMAC__)
966 wxTheClipboard->UsePrimarySelection(t == Primary);
967 #else // !__UNIX__
968 // Primary selection exists only under X11, so don't do anything under
969 // the other platforms when we try to access it
970 //
971 // TODO: this should be abstracted at wxClipboard level!
972 if ( t == Primary )
973 return false;
974 #endif // __UNIX__/!__UNIX__
975
976 if ( wxTheClipboard->Open() )
977 {
978 const wxString txt(SelectionToText());
979 wxTheClipboard->SetData(new wxTextDataObject(txt));
980 wxTheClipboard->Close();
981 wxLogTrace(wxT("wxhtmlselection"),
982 _("Copied to clipboard:\"%s\""), txt.c_str());
983
984 return true;
985 }
986 }
987 #else
988 wxUnusedVar(t);
989 #endif // wxUSE_CLIPBOARD
990
991 return false;
992 }
993
994
995 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
996 {
997 wxHtmlLinkEvent event(GetId(), link);
998 event.SetEventObject(this);
999 if (!GetEventHandler()->ProcessEvent(event))
1000 {
1001 // the default behaviour is to load the URL in this window
1002 const wxMouseEvent *e = event.GetLinkInfo().GetEvent();
1003 if (e == NULL || e->LeftUp())
1004 LoadPage(event.GetLinkInfo().GetHref());
1005 }
1006 }
1007
1008 void wxHtmlWindow::DoEraseBackground(wxDC& dc)
1009 {
1010 // if we don't have any background bitmap we just fill it with background
1011 // colour and we also must do it if the background bitmap is not fully
1012 // opaque as otherwise junk could be left there
1013 if ( !m_bmpBg.IsOk() || m_bmpBg.GetMask() )
1014 {
1015 dc.SetBackground(GetBackgroundColour());
1016 dc.Clear();
1017 }
1018
1019 if ( m_bmpBg.IsOk() )
1020 {
1021 // draw the background bitmap tiling it over the entire window area
1022 const wxSize sz = GetClientSize();
1023 const wxSize sizeBmp(m_bmpBg.GetWidth(), m_bmpBg.GetHeight());
1024 for ( wxCoord x = 0; x < sz.x; x += sizeBmp.x )
1025 {
1026 for ( wxCoord y = 0; y < sz.y; y += sizeBmp.y )
1027 {
1028 dc.DrawBitmap(m_bmpBg, x, y, true /* use mask */);
1029 }
1030 }
1031 }
1032 }
1033
1034 void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
1035 {
1036 wxPaintDC dcPaint(this);
1037
1038 if (m_tmpCanDrawLocks > 0 || m_Cell == NULL)
1039 return;
1040
1041 int x, y;
1042 GetViewStart(&x, &y);
1043 const wxRect rect = GetUpdateRegion().GetBox();
1044 const wxSize sz = GetClientSize();
1045
1046 // set up the DC we're drawing on: if the window is already double buffered
1047 // we do it directly on wxPaintDC, otherwise we allocate a backing store
1048 // buffer and compose the drawing there and then blit it to screen all at
1049 // once
1050 wxDC *dc;
1051 wxMemoryDC dcm;
1052 if ( IsDoubleBuffered() )
1053 {
1054 dc = &dcPaint;
1055 }
1056 else // window is not double buffered by the system, do it ourselves
1057 {
1058 if ( !m_backBuffer.IsOk() )
1059 m_backBuffer.Create(sz.x, sz.y);
1060 dcm.SelectObject(m_backBuffer);
1061 dc = &dcm;
1062 }
1063
1064 PrepareDC(*dc);
1065
1066 // erase the background: for compatibility, we must generate the event to
1067 // allow the user-defined handlers to do it
1068 wxEraseEvent eraseEvent(GetId(), dc);
1069 eraseEvent.SetEventObject(this);
1070 if ( !ProcessWindowEvent(eraseEvent) )
1071 {
1072 // erase background ourselves
1073 DoEraseBackground(*dc);
1074 }
1075 //else: background erased by the user-defined handler
1076
1077
1078 // draw the HTML window contents
1079 dc->SetMapMode(wxMM_TEXT);
1080 dc->SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
1081
1082 wxHtmlRenderingInfo rinfo;
1083 wxDefaultHtmlRenderingStyle rstyle;
1084 rinfo.SetSelection(m_selection);
1085 rinfo.SetStyle(&rstyle);
1086 m_Cell->Draw(*dc, 0, 0,
1087 y * wxHTML_SCROLL_STEP + rect.GetTop(),
1088 y * wxHTML_SCROLL_STEP + rect.GetBottom(),
1089 rinfo);
1090
1091 #ifdef DEBUG_HTML_SELECTION
1092 {
1093 int xc, yc, x, y;
1094 wxGetMousePosition(&xc, &yc);
1095 ScreenToClient(&xc, &yc);
1096 CalcUnscrolledPosition(xc, yc, &x, &y);
1097 wxHtmlCell *at = m_Cell->FindCellByPos(x, y);
1098 wxHtmlCell *before =
1099 m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_BEFORE);
1100 wxHtmlCell *after =
1101 m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_AFTER);
1102
1103 dc->SetBrush(*wxTRANSPARENT_BRUSH);
1104 dc->SetPen(*wxBLACK_PEN);
1105 if (at)
1106 dc->DrawRectangle(at->GetAbsPos(),
1107 wxSize(at->GetWidth(),at->GetHeight()));
1108 dc->SetPen(*wxGREEN_PEN);
1109 if (before)
1110 dc->DrawRectangle(before->GetAbsPos().x+1, before->GetAbsPos().y+1,
1111 before->GetWidth()-2,before->GetHeight()-2);
1112 dc->SetPen(*wxRED_PEN);
1113 if (after)
1114 dc->DrawRectangle(after->GetAbsPos().x+2, after->GetAbsPos().y+2,
1115 after->GetWidth()-4,after->GetHeight()-4);
1116 }
1117 #endif // DEBUG_HTML_SELECTION
1118
1119 if ( dc != &dcPaint )
1120 {
1121 dc->SetDeviceOrigin(0,0);
1122 dcPaint.Blit(0, rect.GetTop(),
1123 sz.x, rect.GetBottom() - rect.GetTop() + 1,
1124 dc,
1125 0, rect.GetTop());
1126 }
1127 }
1128
1129
1130
1131
1132 void wxHtmlWindow::OnSize(wxSizeEvent& event)
1133 {
1134 event.Skip();
1135
1136 m_backBuffer = wxNullBitmap;
1137
1138 CreateLayout();
1139
1140 // Recompute selection if necessary:
1141 if ( m_selection )
1142 {
1143 m_selection->Set(m_selection->GetFromCell(),
1144 m_selection->GetToCell());
1145 m_selection->ClearPrivPos();
1146 }
1147
1148 Refresh();
1149 }
1150
1151
1152 void wxHtmlWindow::OnMouseMove(wxMouseEvent& WXUNUSED(event))
1153 {
1154 wxHtmlWindowMouseHelper::HandleMouseMoved();
1155 }
1156
1157 void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
1158 {
1159 #if wxUSE_CLIPBOARD
1160 if ( event.LeftDown() && IsSelectionEnabled() )
1161 {
1162 const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
1163 if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
1164 {
1165 SelectLine(CalcUnscrolledPosition(event.GetPosition()));
1166
1167 (void) CopySelection();
1168 }
1169 else
1170 {
1171 m_makingSelection = true;
1172
1173 if ( m_selection )
1174 {
1175 wxDELETE(m_selection);
1176 Refresh();
1177 }
1178 m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
1179 m_tmpSelFromCell = NULL;
1180
1181 CaptureMouse();
1182 }
1183 }
1184 #endif // wxUSE_CLIPBOARD
1185
1186 // in any case, let the default handler set focus to this window
1187 event.Skip();
1188 }
1189
1190 void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
1191 {
1192 #if wxUSE_CLIPBOARD
1193 if ( m_makingSelection )
1194 {
1195 ReleaseMouse();
1196 m_makingSelection = false;
1197
1198 // if m_selection=NULL, the user didn't move the mouse far enough from
1199 // starting point and the mouse up event is part of a click, the user
1200 // is not selecting text:
1201 if ( m_selection )
1202 {
1203 CopySelection(Primary);
1204
1205 // we don't want mouse up event that ended selecting to be
1206 // handled as mouse click and e.g. follow hyperlink:
1207 return;
1208 }
1209 }
1210 #endif // wxUSE_CLIPBOARD
1211
1212 wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
1213 wxHtmlWindowMouseHelper::HandleMouseClick(m_Cell, pos, event);
1214 }
1215
1216 #if wxUSE_CLIPBOARD
1217 void wxHtmlWindow::OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
1218 {
1219 if ( !m_makingSelection )
1220 return;
1221
1222 // discard the selecting operation
1223 m_makingSelection = false;
1224 wxDELETE(m_selection);
1225 m_tmpSelFromCell = NULL;
1226 Refresh();
1227 }
1228 #endif // wxUSE_CLIPBOARD
1229
1230
1231 void wxHtmlWindow::OnInternalIdle()
1232 {
1233 wxWindow::OnInternalIdle();
1234
1235 if (m_Cell != NULL && DidMouseMove())
1236 {
1237 #ifdef DEBUG_HTML_SELECTION
1238 Refresh();
1239 #endif
1240 int xc, yc, x, y;
1241 wxGetMousePosition(&xc, &yc);
1242 ScreenToClient(&xc, &yc);
1243 CalcUnscrolledPosition(xc, yc, &x, &y);
1244
1245 wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
1246
1247 // handle selection update:
1248 if ( m_makingSelection )
1249 {
1250 if ( !m_tmpSelFromCell )
1251 m_tmpSelFromCell = m_Cell->FindCellByPos(
1252 m_tmpSelFromPos.x,m_tmpSelFromPos.y);
1253
1254 // NB: a trick - we adjust selFromPos to be upper left or bottom
1255 // right corner of the first cell of the selection depending
1256 // on whether the mouse is moving to the right or to the left.
1257 // This gives us more "natural" behaviour when selecting
1258 // a line (specifically, first cell of the next line is not
1259 // included if you drag selection from left to right over
1260 // entire line):
1261 wxPoint dirFromPos;
1262 if ( !m_tmpSelFromCell )
1263 {
1264 dirFromPos = m_tmpSelFromPos;
1265 }
1266 else
1267 {
1268 dirFromPos = m_tmpSelFromCell->GetAbsPos();
1269 if ( x < m_tmpSelFromPos.x )
1270 {
1271 dirFromPos.x += m_tmpSelFromCell->GetWidth();
1272 dirFromPos.y += m_tmpSelFromCell->GetHeight();
1273 }
1274 }
1275 bool goingDown = dirFromPos.y < y ||
1276 (dirFromPos.y == y && dirFromPos.x < x);
1277
1278 // determine selection span:
1279 if ( /*still*/ !m_tmpSelFromCell )
1280 {
1281 if (goingDown)
1282 {
1283 m_tmpSelFromCell = m_Cell->FindCellByPos(
1284 m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1285 wxHTML_FIND_NEAREST_AFTER);
1286 if (!m_tmpSelFromCell)
1287 m_tmpSelFromCell = m_Cell->GetFirstTerminal();
1288 }
1289 else
1290 {
1291 m_tmpSelFromCell = m_Cell->FindCellByPos(
1292 m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1293 wxHTML_FIND_NEAREST_BEFORE);
1294 if (!m_tmpSelFromCell)
1295 m_tmpSelFromCell = m_Cell->GetLastTerminal();
1296 }
1297 }
1298
1299 wxHtmlCell *selcell = cell;
1300 if (!selcell)
1301 {
1302 if (goingDown)
1303 {
1304 selcell = m_Cell->FindCellByPos(x, y,
1305 wxHTML_FIND_NEAREST_BEFORE);
1306 if (!selcell)
1307 selcell = m_Cell->GetLastTerminal();
1308 }
1309 else
1310 {
1311 selcell = m_Cell->FindCellByPos(x, y,
1312 wxHTML_FIND_NEAREST_AFTER);
1313 if (!selcell)
1314 selcell = m_Cell->GetFirstTerminal();
1315 }
1316 }
1317
1318 // NB: it may *rarely* happen that the code above didn't find one
1319 // of the cells, e.g. if wxHtmlWindow doesn't contain any
1320 // visible cells.
1321 if ( selcell && m_tmpSelFromCell )
1322 {
1323 if ( !m_selection )
1324 {
1325 // start selecting only if mouse movement was big enough
1326 // (otherwise it was meant as mouse click, not selection):
1327 const int PRECISION = 2;
1328 wxPoint diff = m_tmpSelFromPos - wxPoint(x,y);
1329 if (abs(diff.x) > PRECISION || abs(diff.y) > PRECISION)
1330 {
1331 m_selection = new wxHtmlSelection();
1332 }
1333 }
1334 if ( m_selection )
1335 {
1336 if ( m_tmpSelFromCell->IsBefore(selcell) )
1337 {
1338 m_selection->Set(m_tmpSelFromPos, m_tmpSelFromCell,
1339 wxPoint(x,y), selcell);
1340 }
1341 else
1342 {
1343 m_selection->Set(wxPoint(x,y), selcell,
1344 m_tmpSelFromPos, m_tmpSelFromCell);
1345 }
1346 m_selection->ClearPrivPos();
1347 Refresh();
1348 }
1349 }
1350 }
1351
1352 // handle cursor and status bar text changes:
1353
1354 // NB: because we're passing in 'cell' and not 'm_Cell' (so that the
1355 // leaf cell lookup isn't done twice), we need to adjust the
1356 // position for the new root:
1357 wxPoint posInCell(x, y);
1358 if (cell)
1359 posInCell -= cell->GetAbsPos();
1360 wxHtmlWindowMouseHelper::HandleIdle(cell, posInCell);
1361 }
1362 }
1363
1364 #if wxUSE_CLIPBOARD
1365 void wxHtmlWindow::StopAutoScrolling()
1366 {
1367 if ( m_timerAutoScroll )
1368 {
1369 wxDELETE(m_timerAutoScroll);
1370 }
1371 }
1372
1373 void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event)
1374 {
1375 StopAutoScrolling();
1376 event.Skip();
1377 }
1378
1379 void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
1380 {
1381 // don't prevent the usual processing of the event from taking place
1382 event.Skip();
1383
1384 // when a captured mouse leave a scrolled window we start generate
1385 // scrolling events to allow, for example, extending selection beyond the
1386 // visible area in some controls
1387 if ( wxWindow::GetCapture() == this )
1388 {
1389 // where is the mouse leaving?
1390 int pos, orient;
1391 wxPoint pt = event.GetPosition();
1392 if ( pt.x < 0 )
1393 {
1394 orient = wxHORIZONTAL;
1395 pos = 0;
1396 }
1397 else if ( pt.y < 0 )
1398 {
1399 orient = wxVERTICAL;
1400 pos = 0;
1401 }
1402 else // we're lower or to the right of the window
1403 {
1404 wxSize size = GetClientSize();
1405 if ( pt.x > size.x )
1406 {
1407 orient = wxHORIZONTAL;
1408 pos = GetVirtualSize().x / wxHTML_SCROLL_STEP;
1409 }
1410 else if ( pt.y > size.y )
1411 {
1412 orient = wxVERTICAL;
1413 pos = GetVirtualSize().y / wxHTML_SCROLL_STEP;
1414 }
1415 else // this should be impossible
1416 {
1417 // but seems to happen sometimes under wxMSW - maybe it's a bug
1418 // there but for now just ignore it
1419
1420 //wxFAIL_MSG( wxT("can't understand where has mouse gone") );
1421
1422 return;
1423 }
1424 }
1425
1426 // only start the auto scroll timer if the window can be scrolled in
1427 // this direction
1428 if ( !HasScrollbar(orient) )
1429 return;
1430
1431 delete m_timerAutoScroll;
1432 m_timerAutoScroll = new wxHtmlWinAutoScrollTimer
1433 (
1434 this,
1435 pos == 0 ? wxEVT_SCROLLWIN_LINEUP
1436 : wxEVT_SCROLLWIN_LINEDOWN,
1437 pos,
1438 orient
1439 );
1440 m_timerAutoScroll->Start(50); // FIXME: make configurable
1441 }
1442 }
1443
1444 void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
1445 {
1446 if ( IsSelectionEnabled() &&
1447 (event.GetKeyCode() == 'C' && event.CmdDown()) )
1448 {
1449 wxClipboardTextEvent evt(wxEVT_COMMAND_TEXT_COPY, GetId());
1450
1451 evt.SetEventObject(this);
1452
1453 GetEventHandler()->ProcessEvent(evt);
1454 }
1455 }
1456
1457 void wxHtmlWindow::OnCopy(wxCommandEvent& WXUNUSED(event))
1458 {
1459 (void) CopySelection();
1460 }
1461
1462 void wxHtmlWindow::OnClipboardEvent(wxClipboardTextEvent& WXUNUSED(event))
1463 {
1464 (void) CopySelection();
1465 }
1466
1467 void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event)
1468 {
1469 // select word under cursor:
1470 if ( IsSelectionEnabled() )
1471 {
1472 SelectWord(CalcUnscrolledPosition(event.GetPosition()));
1473
1474 (void) CopySelection(Primary);
1475
1476 m_lastDoubleClick = wxGetLocalTimeMillis();
1477 }
1478 else
1479 event.Skip();
1480 }
1481
1482 void wxHtmlWindow::SelectWord(const wxPoint& pos)
1483 {
1484 if ( m_Cell )
1485 {
1486 wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1487 if ( cell )
1488 {
1489 delete m_selection;
1490 m_selection = new wxHtmlSelection();
1491 m_selection->Set(cell, cell);
1492 RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
1493 wxSize(cell->GetWidth(), cell->GetHeight())));
1494 }
1495 }
1496 }
1497
1498 void wxHtmlWindow::SelectLine(const wxPoint& pos)
1499 {
1500 if ( m_Cell )
1501 {
1502 wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1503 if ( cell )
1504 {
1505 // We use following heuristic to find a "line": let the line be all
1506 // cells in same container as the cell under mouse cursor that are
1507 // neither completely above nor completely bellow the clicked cell
1508 // (i.e. are likely to be words positioned on same line of text).
1509
1510 int y1 = cell->GetAbsPos().y;
1511 int y2 = y1 + cell->GetHeight();
1512 int y;
1513 const wxHtmlCell *c;
1514 const wxHtmlCell *before = NULL;
1515 const wxHtmlCell *after = NULL;
1516
1517 // find last cell of line:
1518 for ( c = cell->GetNext(); c; c = c->GetNext())
1519 {
1520 y = c->GetAbsPos().y;
1521 if ( y + c->GetHeight() > y1 && y < y2 )
1522 after = c;
1523 else
1524 break;
1525 }
1526 if ( !after )
1527 after = cell;
1528
1529 // find first cell of line:
1530 for ( c = cell->GetParent()->GetFirstChild();
1531 c && c != cell; c = c->GetNext())
1532 {
1533 y = c->GetAbsPos().y;
1534 if ( y + c->GetHeight() > y1 && y < y2 )
1535 {
1536 if ( ! before )
1537 before = c;
1538 }
1539 else
1540 before = NULL;
1541 }
1542 if ( !before )
1543 before = cell;
1544
1545 delete m_selection;
1546 m_selection = new wxHtmlSelection();
1547 m_selection->Set(before, after);
1548
1549 Refresh();
1550 }
1551 }
1552 }
1553
1554 void wxHtmlWindow::SelectAll()
1555 {
1556 if ( m_Cell )
1557 {
1558 delete m_selection;
1559 m_selection = new wxHtmlSelection();
1560 m_selection->Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
1561 Refresh();
1562 }
1563 }
1564
1565 #endif // wxUSE_CLIPBOARD
1566
1567
1568
1569 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
1570
1571 #if wxUSE_EXTENDED_RTTI
1572 IMPLEMENT_DYNAMIC_CLASS_XTI(wxHtmlWindow, wxScrolledWindow,"wx/html/htmlwin.h")
1573
1574 wxBEGIN_PROPERTIES_TABLE(wxHtmlWindow)
1575 /*
1576 TODO PROPERTIES
1577 style , wxHW_SCROLLBAR_AUTO
1578 borders , (dimension)
1579 url , string
1580 htmlcode , string
1581 */
1582 wxEND_PROPERTIES_TABLE()
1583
1584 wxBEGIN_HANDLERS_TABLE(wxHtmlWindow)
1585 wxEND_HANDLERS_TABLE()
1586
1587 wxCONSTRUCTOR_5( wxHtmlWindow , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
1588 #else
1589 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
1590 #endif
1591
1592 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
1593 EVT_SIZE(wxHtmlWindow::OnSize)
1594 EVT_LEFT_DOWN(wxHtmlWindow::OnMouseDown)
1595 EVT_LEFT_UP(wxHtmlWindow::OnMouseUp)
1596 EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp)
1597 EVT_MOTION(wxHtmlWindow::OnMouseMove)
1598 EVT_PAINT(wxHtmlWindow::OnPaint)
1599 #if wxUSE_CLIPBOARD
1600 EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick)
1601 EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter)
1602 EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave)
1603 EVT_MOUSE_CAPTURE_LOST(wxHtmlWindow::OnMouseCaptureLost)
1604 EVT_KEY_UP(wxHtmlWindow::OnKeyUp)
1605 EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy)
1606 EVT_TEXT_COPY(wxID_ANY, wxHtmlWindow::OnClipboardEvent)
1607 #endif // wxUSE_CLIPBOARD
1608 END_EVENT_TABLE()
1609
1610 //-----------------------------------------------------------------------------
1611 // wxHtmlWindowInterface implementation in wxHtmlWindow
1612 //-----------------------------------------------------------------------------
1613
1614 void wxHtmlWindow::SetHTMLWindowTitle(const wxString& title)
1615 {
1616 OnSetTitle(title);
1617 }
1618
1619 void wxHtmlWindow::OnHTMLLinkClicked(const wxHtmlLinkInfo& link)
1620 {
1621 OnLinkClicked(link);
1622 }
1623
1624 wxHtmlOpeningStatus wxHtmlWindow::OnHTMLOpeningURL(wxHtmlURLType type,
1625 const wxString& url,
1626 wxString *redirect) const
1627 {
1628 return OnOpeningURL(type, url, redirect);
1629 }
1630
1631 wxPoint wxHtmlWindow::HTMLCoordsToWindow(wxHtmlCell *WXUNUSED(cell),
1632 const wxPoint& pos) const
1633 {
1634 return CalcScrolledPosition(pos);
1635 }
1636
1637 wxWindow* wxHtmlWindow::GetHTMLWindow()
1638 {
1639 return this;
1640 }
1641
1642 wxColour wxHtmlWindow::GetHTMLBackgroundColour() const
1643 {
1644 return GetBackgroundColour();
1645 }
1646
1647 void wxHtmlWindow::SetHTMLBackgroundColour(const wxColour& clr)
1648 {
1649 SetBackgroundColour(clr);
1650 }
1651
1652 void wxHtmlWindow::SetHTMLBackgroundImage(const wxBitmap& bmpBg)
1653 {
1654 SetBackgroundImage(bmpBg);
1655 }
1656
1657 void wxHtmlWindow::SetHTMLStatusText(const wxString& text)
1658 {
1659 #if wxUSE_STATUSBAR
1660 if (m_RelatedStatusBarIndex != -1)
1661 {
1662 if (m_RelatedStatusBar)
1663 {
1664 m_RelatedStatusBar->SetStatusText(text, m_RelatedStatusBarIndex);
1665 }
1666 else if (m_RelatedFrame)
1667 {
1668 m_RelatedFrame->SetStatusText(text, m_RelatedStatusBarIndex);
1669 }
1670 }
1671 #else
1672 wxUnusedVar(text);
1673 #endif // wxUSE_STATUSBAR
1674 }
1675
1676 /*static*/
1677 wxCursor wxHtmlWindow::GetDefaultHTMLCursor(HTMLCursor type)
1678 {
1679 switch (type)
1680 {
1681 case HTMLCursor_Link:
1682 if ( !ms_cursorLink )
1683 ms_cursorLink = new wxCursor(wxCURSOR_HAND);
1684 return *ms_cursorLink;
1685
1686 case HTMLCursor_Text:
1687 if ( !ms_cursorText )
1688 ms_cursorText = new wxCursor(wxCURSOR_IBEAM);
1689 return *ms_cursorText;
1690
1691 case HTMLCursor_Default:
1692 default:
1693 return *wxSTANDARD_CURSOR;
1694 }
1695 }
1696
1697 wxCursor wxHtmlWindow::GetHTMLCursor(HTMLCursor type) const
1698 {
1699 return GetDefaultHTMLCursor(type);
1700 }
1701
1702
1703 //-----------------------------------------------------------------------------
1704 // wxHtmlWinModule
1705 //-----------------------------------------------------------------------------
1706
1707 // A module to allow initialization/cleanup
1708 // without calling these functions from app.cpp or from
1709 // the user's application.
1710
1711 class wxHtmlWinModule: public wxModule
1712 {
1713 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
1714 public:
1715 wxHtmlWinModule() : wxModule() {}
1716 bool OnInit() { return true; }
1717 void OnExit() { wxHtmlWindow::CleanUpStatics(); }
1718 };
1719
1720 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
1721
1722
1723 // This hack forces the linker to always link in m_* files
1724 // (wxHTML doesn't work without handlers from these files)
1725 #include "wx/html/forcelnk.h"
1726 FORCE_WXHTML_MODULES()
1727
1728 #endif // wxUSE_HTML