X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/31d8b4ad2425eb6c172c97cc3a39300ee2d39b85..da6f998486f1070e205f2e0a54f22a1b67cb32a4:/src/html/htmlwin.cpp diff --git a/src/html/htmlwin.cpp b/src/html/htmlwin.cpp index 08e3966044..4410fa73c3 100644 --- a/src/html/htmlwin.cpp +++ b/src/html/htmlwin.cpp @@ -1,47 +1,131 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: htmlwin.cpp +// Name: src/html/htmlwin.cpp // Purpose: wxHtmlWindow class for parsing & displaying HTML (implementation) // Author: Vaclav Slavik -// RCS-ID: $Id$ // Copyright: (c) 1999 Vaclav Slavik -// Licence: wxWindows Licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// - -#ifdef __GNUG__ -#pragma implementation "htmlwin.h" -#pragma implementation "htmlproc.h" -#endif - #include "wx/wxprec.h" -#include "wx/defs.h" -#if wxUSE_HTML && wxUSE_STREAMS - #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif -#ifndef WXPRECOMP +#if wxUSE_HTML && wxUSE_STREAMS + +#ifndef WX_PRECOMP + #include "wx/list.h" #include "wx/log.h" #include "wx/intl.h" #include "wx/dcclient.h" #include "wx/frame.h" + #include "wx/dcmemory.h" + #include "wx/timer.h" + #include "wx/settings.h" + #include "wx/dataobj.h" + #include "wx/statusbr.h" #endif #include "wx/html/htmlwin.h" #include "wx/html/htmlproc.h" -#include "wx/list.h" +#include "wx/clipbrd.h" +#include "wx/recguard.h" #include "wx/arrimpl.cpp" #include "wx/listimpl.cpp" +// uncomment this line to visually show the extent of the selection +//#define DEBUG_HTML_SELECTION + +// HTML events: +IMPLEMENT_DYNAMIC_CLASS(wxHtmlLinkEvent, wxCommandEvent) +IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellEvent, wxCommandEvent) + +wxDEFINE_EVENT( wxEVT_HTML_CELL_CLICKED, wxHtmlCellEvent ); +wxDEFINE_EVENT( wxEVT_HTML_CELL_HOVER, wxHtmlCellEvent ); +wxDEFINE_EVENT( wxEVT_HTML_LINK_CLICKED, wxHtmlLinkEvent ); + + +#if wxUSE_CLIPBOARD +// ---------------------------------------------------------------------------- +// wxHtmlWinAutoScrollTimer: the timer used to generate a stream of scroll +// events when a captured mouse is held outside the window +// ---------------------------------------------------------------------------- + +class wxHtmlWinAutoScrollTimer : public wxTimer +{ +public: + wxHtmlWinAutoScrollTimer(wxScrolledWindow *win, + wxEventType eventTypeToSend, + int pos, int orient) + { + m_win = win; + m_eventType = eventTypeToSend; + m_pos = pos; + m_orient = orient; + } + + virtual void Notify(); + +private: + wxScrolledWindow *m_win; + wxEventType m_eventType; + int m_pos, + m_orient; + + wxDECLARE_NO_COPY_CLASS(wxHtmlWinAutoScrollTimer); +}; + +void wxHtmlWinAutoScrollTimer::Notify() +{ + // only do all this as long as the window is capturing the mouse + if ( wxWindow::GetCapture() != m_win ) + { + Stop(); + } + else // we still capture the mouse, continue generating events + { + // first scroll the window if we are allowed to do it + wxScrollWinEvent event1(m_eventType, m_pos, m_orient); + event1.SetEventObject(m_win); + if ( m_win->GetEventHandler()->ProcessEvent(event1) ) + { + // and then send a pseudo mouse-move event to refresh the selection + wxMouseEvent event2(wxEVT_MOTION); + wxGetMousePosition(&event2.m_x, &event2.m_y); + + // the mouse event coordinates should be client, not screen as + // returned by wxGetMousePosition + wxWindow *parentTop = m_win; + while ( parentTop->GetParent() ) + parentTop = parentTop->GetParent(); + wxPoint ptOrig = parentTop->GetPosition(); + event2.m_x -= ptOrig.x; + event2.m_y -= ptOrig.y; + + event2.SetEventObject(m_win); + + // FIXME: we don't fill in the other members - ok? + m_win->GetEventHandler()->ProcessEvent(event2); + } + else // can't scroll further, stop + { + Stop(); + } + } +} + +#endif // wxUSE_CLIPBOARD + + + //----------------------------------------------------------------------------- // wxHtmlHistoryItem //----------------------------------------------------------------------------- // item of history list -class WXDLLEXPORT wxHtmlHistoryItem +class WXDLLIMPEXP_HTML wxHtmlHistoryItem { public: wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;} @@ -62,24 +146,163 @@ private: //----------------------------------------------------------------------------- WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray); -WX_DEFINE_OBJARRAY(wxHtmlHistoryArray); +WX_DEFINE_OBJARRAY(wxHtmlHistoryArray) WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList); -WX_DEFINE_LIST(wxHtmlProcessorList); +WX_DEFINE_LIST(wxHtmlProcessorList) + +//----------------------------------------------------------------------------- +// wxHtmlWindowMouseHelper +//----------------------------------------------------------------------------- + +wxHtmlWindowMouseHelper::wxHtmlWindowMouseHelper(wxHtmlWindowInterface *iface) + : m_tmpMouseMoved(false), + m_tmpLastLink(NULL), + m_tmpLastCell(NULL), + m_interface(iface) +{ +} + +void wxHtmlWindowMouseHelper::HandleMouseMoved() +{ + m_tmpMouseMoved = true; +} + +bool wxHtmlWindowMouseHelper::HandleMouseClick(wxHtmlCell *rootCell, + const wxPoint& pos, + const wxMouseEvent& event) +{ + if (!rootCell) + return false; + + wxHtmlCell *cell = rootCell->FindCellByPos(pos.x, pos.y); + // this check is needed because FindCellByPos returns terminal cell and + // containers may have empty borders -- in this case NULL will be + // returned + if (!cell) + return false; + + // adjust the coordinates to be relative to this cell: + wxPoint relpos = pos - cell->GetAbsPos(rootCell); + + return OnCellClicked(cell, relpos.x, relpos.y, event); +} + +void wxHtmlWindowMouseHelper::HandleIdle(wxHtmlCell *rootCell, + const wxPoint& pos) +{ + wxHtmlCell *cell = rootCell ? rootCell->FindCellByPos(pos.x, pos.y) : NULL; + + if (cell != m_tmpLastCell) + { + wxHtmlLinkInfo *lnk = NULL; + if (cell) + { + // adjust the coordinates to be relative to this cell: + wxPoint relpos = pos - cell->GetAbsPos(rootCell); + lnk = cell->GetLink(relpos.x, relpos.y); + } + + wxCursor cur; + if (cell) + cur = cell->GetMouseCursorAt(m_interface, pos); + else + cur = m_interface->GetHTMLCursor( + wxHtmlWindowInterface::HTMLCursor_Default); + + m_interface->GetHTMLWindow()->SetCursor(cur); + + if (lnk != m_tmpLastLink) + { + if (lnk) + m_interface->SetHTMLStatusText(lnk->GetHref()); + else + m_interface->SetHTMLStatusText(wxEmptyString); + + m_tmpLastLink = lnk; + } + + m_tmpLastCell = cell; + } + else // mouse moved but stayed in the same cell + { + if ( cell ) + { + // A single cell can have different cursors for different positions, + // so update cursor for this case as well. + wxCursor cur = cell->GetMouseCursorAt(m_interface, pos); + m_interface->GetHTMLWindow()->SetCursor(cur); + + OnCellMouseHover(cell, pos.x, pos.y); + } + } + + m_tmpMouseMoved = false; +} + +bool wxHtmlWindowMouseHelper::OnCellClicked(wxHtmlCell *cell, + wxCoord x, wxCoord y, + const wxMouseEvent& event) +{ + wxHtmlCellEvent ev(wxEVT_HTML_CELL_CLICKED, + m_interface->GetHTMLWindow()->GetId(), + cell, wxPoint(x,y), event); + + if (!m_interface->GetHTMLWindow()->GetEventHandler()->ProcessEvent(ev)) + { + // if the event wasn't handled, do the default processing here: + + wxASSERT_MSG( cell, wxT("can't be called with NULL cell") ); + + cell->ProcessMouseClick(m_interface, ev.GetPoint(), ev.GetMouseEvent()); + } + + // true if a link was clicked, false otherwise + return ev.GetLinkClicked(); +} + +void wxHtmlWindowMouseHelper::OnCellMouseHover(wxHtmlCell * cell, + wxCoord x, + wxCoord y) +{ + wxHtmlCellEvent ev(wxEVT_HTML_CELL_HOVER, + m_interface->GetHTMLWindow()->GetId(), + cell, wxPoint(x,y), wxMouseEvent()); + m_interface->GetHTMLWindow()->GetEventHandler()->ProcessEvent(ev); +} + + + //----------------------------------------------------------------------------- // wxHtmlWindow //----------------------------------------------------------------------------- +wxList wxHtmlWindow::m_Filters; +wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL; +wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL; +wxCursor *wxHtmlWindow::ms_cursorLink = NULL; +wxCursor *wxHtmlWindow::ms_cursorText = NULL; + +void wxHtmlWindow::CleanUpStatics() +{ + wxDELETE(m_DefaultFilter); + WX_CLEAR_LIST(wxList, m_Filters); + if (m_GlobalProcessors) + WX_CLEAR_LIST(wxHtmlProcessorList, *m_GlobalProcessors); + wxDELETE(m_GlobalProcessors); + wxDELETE(ms_cursorLink); + wxDELETE(ms_cursorText); +} void wxHtmlWindow::Init() { - m_tmpMouseMoved = FALSE; - m_tmpLastLink = NULL; - m_tmpLastCell = NULL; m_tmpCanDrawLocks = 0; m_FS = new wxFileSystem(); - m_RelatedStatusBar = -1; +#if wxUSE_STATUSBAR + m_RelatedStatusBar = NULL; + m_RelatedStatusBarIndex = -1; +#endif // wxUSE_STATUSBAR m_RelatedFrame = NULL; m_TitleFormat = wxT("%s"); m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString; @@ -87,11 +310,17 @@ void wxHtmlWindow::Init() m_Parser = new wxHtmlWinParser(this); m_Parser->SetFS(m_FS); m_HistoryPos = -1; - m_HistoryOn = TRUE; + m_HistoryOn = true; m_History = new wxHtmlHistoryArray; m_Processors = NULL; - m_Style = 0; SetBorders(10); + m_selection = NULL; + m_makingSelection = false; +#if wxUSE_CLIPBOARD + m_timerAutoScroll = NULL; + m_lastDoubleClick = 0; +#endif // wxUSE_CLIPBOARD + m_tmpSelFromCell = NULL; } bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id, @@ -99,20 +328,43 @@ bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id, long style, const wxString& name) { if (!wxScrolledWindow::Create(parent, id, pos, size, - style | wxVSCROLL | wxHSCROLL, name)) - return FALSE; - - m_Style = style; + style | wxVSCROLL | wxHSCROLL, + name)) + return false; + + // We can't erase our background in EVT_ERASE_BACKGROUND handler and use + // double buffering in EVT_PAINT handler as this requires blitting back + // something already drawn on the window to the backing store bitmap when + // handling EVT_PAINT but blitting in this direction is simply not + // supported by OS X. + // + // So instead we use a hack with artificial EVT_ERASE_BACKGROUND generation + // from OnPaint() and this means that we never need the "real" erase event + // at all so disable it to avoid executing any user-defined handlers twice + // (and to avoid processing unnecessary event if no handlers are defined). + SetBackgroundStyle(wxBG_STYLE_PAINT); SetPage(wxT("")); - return TRUE; + + SetInitialSize(size); + return true; } wxHtmlWindow::~wxHtmlWindow() { +#if wxUSE_CLIPBOARD + StopAutoScrolling(); +#endif // wxUSE_CLIPBOARD HistoryClear(); - if (m_Cell) delete m_Cell; + delete m_selection; + + delete m_Cell; + + if ( m_Processors ) + { + WX_CLEAR_LIST(wxHtmlProcessorList, *m_Processors); + } delete m_Parser; delete m_FS; @@ -130,37 +382,65 @@ void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format) -void wxHtmlWindow::SetRelatedStatusBar(int bar) +#if wxUSE_STATUSBAR +void wxHtmlWindow::SetRelatedStatusBar(int index) { - m_RelatedStatusBar = bar; + m_RelatedStatusBarIndex = index; } +void wxHtmlWindow::SetRelatedStatusBar(wxStatusBar* statusbar, int index) +{ + m_RelatedStatusBar = statusbar; + m_RelatedStatusBarIndex = index; +} +#endif // wxUSE_STATUSBAR -void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes) -{ - wxString op = m_OpenedPage; + +void wxHtmlWindow::SetFonts(const wxString& normal_face, const wxString& fixed_face, const int *sizes) +{ m_Parser->SetFonts(normal_face, fixed_face, sizes); - // fonts changed => contents invalid, so reload the page: - SetPage(wxT("")); - if (!op.IsEmpty()) LoadPage(op); + + // re-layout the page after changing fonts: + DoSetPage(*(m_Parser->GetSource())); } +void wxHtmlWindow::SetStandardFonts(int size, + const wxString& normal_face, + const wxString& fixed_face) +{ + m_Parser->SetStandardFonts(size, normal_face, fixed_face); + // re-layout the page after changing fonts: + DoSetPage(*(m_Parser->GetSource())); +} bool wxHtmlWindow::SetPage(const wxString& source) +{ + m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString; + return DoSetPage(source); +} + +bool wxHtmlWindow::DoSetPage(const wxString& source) { wxString newsrc(source); + wxDELETE(m_selection); + + // we will soon delete all the cells, so clear pointers to them: + m_tmpSelFromCell = NULL; + // pass HTML through registered processors: if (m_Processors || m_GlobalProcessors) { - wxHtmlProcessorList::Node *nodeL, *nodeG; + wxHtmlProcessorList::compatibility_iterator nodeL, nodeG; int prL, prG; - nodeL = (m_Processors) ? m_Processors->GetFirst() : NULL; - nodeG = (m_GlobalProcessors) ? m_GlobalProcessors->GetFirst() : NULL; + if ( m_Processors ) + nodeL = m_Processors->GetFirst(); + if ( m_GlobalProcessors ) + nodeG = m_GlobalProcessors->GetFirst(); // VS: there are two lists, global and local, both of them sorted by // priority. Since we have to go through _both_ lists with @@ -190,13 +470,16 @@ bool wxHtmlWindow::SetPage(const wxString& source) wxClientDC *dc = new wxClientDC(this); dc->SetMapMode(wxMM_TEXT); SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF)); - m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString; + SetBackgroundImage(wxNullBitmap); + m_Parser->SetDC(dc); - if (m_Cell) - { - delete m_Cell; - m_Cell = NULL; - } + + // notice that it's important to set m_Cell to NULL here before calling + // Parse() below, even if it will be overwritten by its return value as + // without this we may crash if it's used from inside Parse(), so use + // wxDELETE() and not just delete here + wxDELETE(m_Cell); + m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc); delete dc; m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS); @@ -204,21 +487,22 @@ bool wxHtmlWindow::SetPage(const wxString& source) CreateLayout(); if (m_tmpCanDrawLocks == 0) Refresh(); - return TRUE; + return true; } bool wxHtmlWindow::AppendToPage(const wxString& source) { - return SetPage(*(GetParser()->GetSource()) + source); + return DoSetPage(*(GetParser()->GetSource()) + source); } bool wxHtmlWindow::LoadPage(const wxString& location) { + wxCHECK_MSG( !location.empty(), false, "location must be non-empty" ); + wxBusyCursor busyCursor; - wxFSFile *f; bool rt_val; - bool needs_refresh = FALSE; + bool needs_refresh = false; m_tmpCanDrawLocks++; if (m_HistoryOn && (m_HistoryPos != -1)) @@ -229,41 +513,40 @@ bool wxHtmlWindow::LoadPage(const wxString& location) (*m_History)[m_HistoryPos].SetPos(y); } - if (location[0] == wxT('#')) - { - // local anchor: - wxString anch = location.Mid(1) /*1 to end*/; - m_tmpCanDrawLocks--; - rt_val = ScrollToAnchor(anch); - m_tmpCanDrawLocks++; - } - else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage) + // first check if we're moving to an anchor in the same page + size_t posLocalAnchor = location.Find('#'); + if ( posLocalAnchor != wxString::npos && posLocalAnchor != 0 ) { - wxString anch = location.AfterFirst(wxT('#')); - m_tmpCanDrawLocks--; - rt_val = ScrollToAnchor(anch); - m_tmpCanDrawLocks++; + // check if the part before the anchor is the same as the (either + // relative or absolute) URI of the current page + const wxString beforeAnchor = location.substr(0, posLocalAnchor); + if ( beforeAnchor != m_OpenedPage && + m_FS->GetPath() + beforeAnchor != m_OpenedPage ) + { + // indicate that we're not moving to a local anchor + posLocalAnchor = wxString::npos; + } } - else if (location.Find(wxT('#')) != wxNOT_FOUND && - (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage) + + if ( posLocalAnchor != wxString::npos ) { - wxString anch = location.AfterFirst(wxT('#')); m_tmpCanDrawLocks--; - rt_val = ScrollToAnchor(anch); + rt_val = ScrollToAnchor(location.substr(posLocalAnchor + 1)); m_tmpCanDrawLocks++; } - - else + else // moving to another page { - needs_refresh = TRUE; + needs_refresh = true; +#if wxUSE_STATUSBAR // load&display it: - if (m_RelatedStatusBar != -1) + if (m_RelatedStatusBarIndex != -1) { - m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar); - Refresh(FALSE); + SetHTMLStatusText(_("Connecting...")); + Refresh(false); } +#endif // wxUSE_STATUSBAR - f = m_Parser->OpenURL(wxHTML_URL_PAGE, location); + wxFSFile *f = m_Parser->OpenURL(wxHTML_URL_PAGE, location); // try to interpret 'location' as filename instead of URL: if (f == NULL) @@ -277,20 +560,23 @@ bool wxHtmlWindow::LoadPage(const wxString& location) { wxLogError(_("Unable to open requested HTML document: %s"), location.c_str()); m_tmpCanDrawLocks--; - return FALSE; + SetHTMLStatusText(wxEmptyString); + return false; } else { - wxNode *node; + wxList::compatibility_iterator node; wxString src = wxEmptyString; - if (m_RelatedStatusBar != -1) +#if wxUSE_STATUSBAR + if (m_RelatedStatusBarIndex != -1) { wxString msg = _("Loading : ") + location; - m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar); - Refresh(FALSE); + SetHTMLStatusText(msg); + Refresh(false); } +#endif // wxUSE_STATUSBAR node = m_Filters.GetFirst(); while (node) @@ -319,7 +605,12 @@ bool wxHtmlWindow::LoadPage(const wxString& location) delete f; - if (m_RelatedStatusBar != -1) m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar); +#if wxUSE_STATUSBAR + if (m_RelatedStatusBarIndex != -1) + { + SetHTMLStatusText(_("Done")); + } +#endif // wxUSE_STATUSBAR } } @@ -366,16 +657,26 @@ bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor) if (!c) { wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str()); - return FALSE; + return false; } else { + // Go to next visible cell in current container, if it exists. This + // yields a bit better (even though still imperfect) results in that + // there's better chance of using a suitable cell for upper Y + // coordinate value. See bug #11406 for additional discussion. + const wxHtmlCell *c_save = c; + while ( c && c->IsFormattingCell() ) + c = c->GetNext(); + if ( !c ) + c = c_save; + int y; for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY(); Scroll(-1, y / wxHTML_SCROLL_STEP); m_OpenedAnchor = anchor; - return TRUE; + return true; } } @@ -392,44 +693,116 @@ void wxHtmlWindow::OnSetTitle(const wxString& title) } - +// return scroll steps such that a) scrollbars aren't shown needlessly +// and b) entire content is viewable (i.e. round up) +static int ScrollSteps(int size, int available) +{ + if ( size <= available ) + return 0; + else + return (size + wxHTML_SCROLL_STEP - 1) / wxHTML_SCROLL_STEP; +} void wxHtmlWindow::CreateLayout() { - int ClientWidth, ClientHeight; + // SetScrollbars() results in size change events -- and thus a nested + // CreateLayout() call -- on some platforms. Ignore nested calls, toplevel + // CreateLayout() will do the right thing eventually. + static wxRecursionGuardFlag s_flagReentrancy; + wxRecursionGuard guard(s_flagReentrancy); + if ( guard.IsInside() ) + return; + + if (!m_Cell) + return; + + int clientWidth, clientHeight; + GetClientSize(&clientWidth, &clientHeight); + + const int vscrollbar = wxSystemSettings::GetMetric(wxSYS_VSCROLL_X); + const int hscrollbar = wxSystemSettings::GetMetric(wxSYS_HSCROLL_Y); + + if ( HasScrollbar(wxHORIZONTAL) ) + clientHeight += hscrollbar; - if (!m_Cell) return; + if ( HasScrollbar(wxVERTICAL) ) + clientWidth += vscrollbar; - if (m_Style & wxHW_SCROLLBAR_NEVER) + if ( HasFlag(wxHW_SCROLLBAR_NEVER) ) { - SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off - GetClientSize(&ClientWidth, &ClientHeight); - m_Cell->Layout(ClientWidth); + SetScrollbars(1, 1, 0, 0); // always off + m_Cell->Layout(clientWidth); } + else // !wxHW_SCROLLBAR_NEVER + { + // Lay the content out with the assumption that it's too large to fit + // in the window (this is likely to be the case): + m_Cell->Layout(clientWidth - vscrollbar); + + // If the layout is wider than the window, horizontal scrollbar will + // certainly be shown. Account for it here for subsequent computations. + if ( m_Cell->GetWidth() > clientWidth ) + clientHeight -= hscrollbar; - else { - GetClientSize(&ClientWidth, &ClientHeight); - m_Cell->Layout(ClientWidth); - if (ClientHeight < m_Cell->GetHeight() + GetCharHeight()) + if ( m_Cell->GetHeight() <= clientHeight ) { - SetScrollbars( - wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP, - m_Cell->GetWidth() / wxHTML_SCROLL_STEP, - (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP - /*cheat: top-level frag is always container*/); + // we fit into the window, hide vertical scrollbar: + SetScrollbars + ( + wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP, + ScrollSteps(m_Cell->GetWidth(), clientWidth - vscrollbar), + 0 + ); + // ...and redo the layout to use the extra space + m_Cell->Layout(clientWidth); } - else /* we fit into window, no need for scrollbars */ + else { - SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable... - GetClientSize(&ClientWidth, &ClientHeight); - m_Cell->Layout(ClientWidth); // ...and relayout + // If the content doesn't fit into the window by only a small + // margin, chances are that it may fit fully with scrollbar turned + // off. It's something worth trying but on the other hand, we don't + // want to waste too much time redoing the layout (twice!) for + // long -- and thus expensive to layout -- pages. The cut-off value + // is an arbitrary heuristics. + static const int SMALL_OVERLAP = 60; + if ( m_Cell->GetHeight() <= clientHeight + SMALL_OVERLAP ) + { + m_Cell->Layout(clientWidth); + + if ( m_Cell->GetHeight() <= clientHeight ) + { + // Great, we fit in. Hide the scrollbar. + SetScrollbars + ( + wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP, + ScrollSteps(m_Cell->GetWidth(), clientWidth), + 0 + ); + return; + } + else + { + // That didn't work out, go back to previous layout. Note + // that redoing the layout once again here isn't as bad as + // it looks -- thanks to the small cut-off value, it's a + // reasonably small page. + m_Cell->Layout(clientWidth - vscrollbar); + } + } + // else: the page is very long, it will certainly need scrollbar + + SetScrollbars + ( + wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP, + ScrollSteps(m_Cell->GetWidth(), clientWidth - vscrollbar), + ScrollSteps(m_Cell->GetHeight(), clientHeight) + ); } } } - - +#if wxUSE_CONFIG void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path) { wxString oldpath; @@ -482,14 +855,13 @@ void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path) if (path != wxEmptyString) cfg->SetPath(oldpath); } - - +#endif // wxUSE_CONFIG bool wxHtmlWindow::HistoryBack() { wxString a, l; - if (m_HistoryPos < 1) return FALSE; + if (m_HistoryPos < 1) return false; // store scroll position into history item: int x, y; @@ -501,21 +873,21 @@ bool wxHtmlWindow::HistoryBack() l = (*m_History)[m_HistoryPos].GetPage(); a = (*m_History)[m_HistoryPos].GetAnchor(); - m_HistoryOn = FALSE; + m_HistoryOn = false; m_tmpCanDrawLocks++; if (a == wxEmptyString) LoadPage(l); else LoadPage(l + wxT("#") + a); - m_HistoryOn = TRUE; + m_HistoryOn = true; m_tmpCanDrawLocks--; Scroll(0, (*m_History)[m_HistoryPos].GetPos()); Refresh(); - return TRUE; + return true; } bool wxHtmlWindow::HistoryCanBack() { - if (m_HistoryPos < 1) return FALSE; - return TRUE ; + if (m_HistoryPos < 1) return false; + return true ; } @@ -523,30 +895,30 @@ bool wxHtmlWindow::HistoryForward() { wxString a, l; - if (m_HistoryPos == -1) return FALSE; - if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE; + if (m_HistoryPos == -1) return false; + if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false; m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage() m_HistoryPos++; l = (*m_History)[m_HistoryPos].GetPage(); a = (*m_History)[m_HistoryPos].GetAnchor(); - m_HistoryOn = FALSE; + m_HistoryOn = false; m_tmpCanDrawLocks++; if (a == wxEmptyString) LoadPage(l); else LoadPage(l + wxT("#") + a); - m_HistoryOn = TRUE; + m_HistoryOn = true; m_tmpCanDrawLocks--; Scroll(0, (*m_History)[m_HistoryPos].GetPos()); Refresh(); - return TRUE; + return true; } bool wxHtmlWindow::HistoryCanForward() { - if (m_HistoryPos == -1) return FALSE; - if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE; - return TRUE ; + if (m_HistoryPos == -1) return false; + if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false; + return true ; } @@ -561,9 +933,8 @@ void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor) if (!m_Processors) { m_Processors = new wxHtmlProcessorList; - m_Processors->DeleteContents(TRUE); } - wxHtmlProcessorList::Node *node; + wxHtmlProcessorList::compatibility_iterator node; for (node = m_Processors->GetFirst(); node; node = node->GetNext()) { @@ -581,9 +952,8 @@ void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor) if (!m_GlobalProcessors) { m_GlobalProcessors = new wxHtmlProcessorList; - m_GlobalProcessors->DeleteContents(TRUE); } - wxHtmlProcessorList::Node *node; + wxHtmlProcessorList::compatibility_iterator node; for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext()) { @@ -598,78 +968,257 @@ void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor) -wxList wxHtmlWindow::m_Filters; -wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL; -wxCursor *wxHtmlWindow::s_cur_hand = NULL; -wxCursor *wxHtmlWindow::s_cur_arrow = NULL; -wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL; +void wxHtmlWindow::AddFilter(wxHtmlFilter *filter) +{ + m_Filters.Append(filter); +} -void wxHtmlWindow::CleanUpStatics() + +bool wxHtmlWindow::IsSelectionEnabled() const { - wxDELETE(m_DefaultFilter); - m_Filters.DeleteContents(TRUE); - m_Filters.Clear(); - wxDELETE(m_GlobalProcessors); - wxDELETE(s_cur_hand); - wxDELETE(s_cur_arrow); +#if wxUSE_CLIPBOARD + return !HasFlag(wxHW_NO_SELECTION); +#else + return false; +#endif } +#if wxUSE_CLIPBOARD +wxString wxHtmlWindow::DoSelectionToText(wxHtmlSelection *sel) +{ + if ( !sel ) + return wxEmptyString; -void wxHtmlWindow::AddFilter(wxHtmlFilter *filter) + wxClientDC dc(this); + wxString text; + + wxHtmlTerminalCellsInterator i(sel->GetFromCell(), sel->GetToCell()); + const wxHtmlCell *prev = NULL; + + while ( i ) + { + // When converting HTML content to plain text, the entire paragraph + // (container in wxHTML) goes on single line. A new paragraph (that + // should go on its own line) has its own container. Therefore, the + // simplest way of detecting where to insert newlines in plain text + // is to check if the parent container changed -- if it did, we moved + // to a new paragraph. + if ( prev && prev->GetParent() != i->GetParent() ) + text << '\n'; + + // NB: we don't need to pass the selection to ConvertToText() in the + // middle of the selected text; it's only useful when only part of + // a cell is selected + text << i->ConvertToText(sel); + + prev = *i; + ++i; + } + return text; +} + +wxString wxHtmlWindow::ToText() { - m_Filters.Append(filter); + if (m_Cell) + { + wxHtmlSelection sel; + sel.Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal()); + return DoSelectionToText(&sel); + } + else + return wxEmptyString; } +#endif // wxUSE_CLIPBOARD -bool wxHtmlWindow::IsSelectionEnabled() const +bool wxHtmlWindow::CopySelection(ClipboardType t) { #if wxUSE_CLIPBOARD - return !(m_Style & wxHW_NO_SELECTION); + if ( m_selection ) + { +#if defined(__UNIX__) && !defined(__WXMAC__) + wxTheClipboard->UsePrimarySelection(t == Primary); +#else // !__UNIX__ + // Primary selection exists only under X11, so don't do anything under + // the other platforms when we try to access it + // + // TODO: this should be abstracted at wxClipboard level! + if ( t == Primary ) + return false; +#endif // __UNIX__/!__UNIX__ + + if ( wxTheClipboard->Open() ) + { + const wxString txt(SelectionToText()); + wxTheClipboard->SetData(new wxTextDataObject(txt)); + wxTheClipboard->Close(); + wxLogTrace(wxT("wxhtmlselection"), + _("Copied to clipboard:\"%s\""), txt.c_str()); + + return true; + } + } #else + wxUnusedVar(t); +#endif // wxUSE_CLIPBOARD + return false; -#endif } void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link) { - const wxMouseEvent *e = link.GetEvent(); - if (e == NULL || e->LeftUp()) - LoadPage(link.GetHref()); + wxHtmlLinkEvent event(GetId(), link); + event.SetEventObject(this); + if (!GetEventHandler()->ProcessEvent(event)) + { + // the default behaviour is to load the URL in this window + const wxMouseEvent *e = event.GetLinkInfo().GetEvent(); + if (e == NULL || e->LeftUp()) + LoadPage(event.GetLinkInfo().GetHref()); + } } -void wxHtmlWindow::OnCellClicked(wxHtmlCell *cell, - wxCoord x, wxCoord y, - const wxMouseEvent& event) +void wxHtmlWindow::DoEraseBackground(wxDC& dc) { - wxCHECK_RET( cell, _T("can't be called with NULL cell") ); + // if we don't have any background bitmap we just fill it with background + // colour and we also must do it if the background bitmap is not fully + // opaque as otherwise junk could be left there + if ( !m_bmpBg.IsOk() || m_bmpBg.GetMask() ) + { + dc.SetBackground(GetBackgroundColour()); + dc.Clear(); + } - cell->OnMouseClick(this, x, y, event); + if ( m_bmpBg.IsOk() ) + { + // draw the background bitmap tiling it over the entire window area + const wxSize sz = GetVirtualSize(); + const wxSize sizeBmp(m_bmpBg.GetWidth(), m_bmpBg.GetHeight()); + for ( wxCoord x = 0; x < sz.x; x += sizeBmp.x ) + { + for ( wxCoord y = 0; y < sz.y; y += sizeBmp.y ) + { + dc.DrawBitmap(m_bmpBg, x, y, true /* use mask */); + } + } + } } -void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell), - wxCoord WXUNUSED(x), wxCoord WXUNUSED(y)) +void wxHtmlWindow::OnEraseBackground(wxEraseEvent& WXUNUSED(event)) { - // do nothing here + // We never get real erase background events as we changed our background + // style to wxBG_STYLE_PAINT in our ctor so the only time when we get here + // is when an artificial wxEraseEvent is generated by our own OnPaint() + // below. This handler only exists to stop the event from propagating + // downwards to wxWindow which may erase the background itself when it gets + // it in some ports (currently this happens in wxUniv), so we simply stop + // processing here and set a special flag allowing OnPaint() to see that + // the event hadn't been really processed. + m_isBgReallyErased = false; } -void wxHtmlWindow::OnDraw(wxDC& dc) +void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event)) { - if (m_tmpCanDrawLocks > 0 || m_Cell == NULL) return; + wxPaintDC dcPaint(this); - int x, y; - wxRect rect = GetUpdateRegion().GetBox(); + if (m_tmpCanDrawLocks > 0 || m_Cell == NULL) + return; - dc.SetMapMode(wxMM_TEXT); - dc.SetBackgroundMode(wxTRANSPARENT); + int x, y; GetViewStart(&x, &y); + const wxRect rect = GetUpdateRegion().GetBox(); + const wxSize sz = GetClientSize(); + + // set up the DC we're drawing on: if the window is already double buffered + // we do it directly on wxPaintDC, otherwise we allocate a backing store + // buffer and compose the drawing there and then blit it to screen all at + // once + wxDC *dc; + wxMemoryDC dcm; + if ( IsDoubleBuffered() ) + { + dc = &dcPaint; + } + else // window is not double buffered by the system, do it ourselves + { + if ( !m_backBuffer.IsOk() ) + m_backBuffer.Create(sz.x, sz.y); + dcm.SelectObject(m_backBuffer); + dc = &dcm; + } - wxHtmlRenderingState rstate(NULL); - m_Cell->Draw(dc, 0, 0, + PrepareDC(*dc); + + // Erase the background: for compatibility, we must generate the event to + // allow the user-defined handlers to do it, hence this hack with sending + // an artificial wxEraseEvent to trigger the execution of such handlers. + wxEraseEvent eraseEvent(GetId(), dc); + eraseEvent.SetEventObject(this); + + // Hack inside a hack: the background wasn't really erased if our own + // OnEraseBackground() was executed, so we need to check for the flag set + // by it whenever it's called. + m_isBgReallyErased = true; // Initially assume it wasn't. + if ( !ProcessWindowEvent(eraseEvent) || !m_isBgReallyErased ) + { + // erase background ourselves + DoEraseBackground(*dc); + } + //else: background erased by the user-defined handler + + + // draw the HTML window contents + dc->SetMapMode(wxMM_TEXT); + dc->SetBackgroundMode(wxTRANSPARENT); + dc->SetLayoutDirection(GetLayoutDirection()); + + wxHtmlRenderingInfo rinfo; + wxDefaultHtmlRenderingStyle rstyle; + rinfo.SetSelection(m_selection); + rinfo.SetStyle(&rstyle); + m_Cell->Draw(*dc, 0, 0, y * wxHTML_SCROLL_STEP + rect.GetTop(), y * wxHTML_SCROLL_STEP + rect.GetBottom(), - rstate); + rinfo); + +#ifdef DEBUG_HTML_SELECTION + { + int xc, yc, x, y; + wxGetMousePosition(&xc, &yc); + ScreenToClient(&xc, &yc); + CalcUnscrolledPosition(xc, yc, &x, &y); + wxHtmlCell *at = m_Cell->FindCellByPos(x, y); + wxHtmlCell *before = + m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_BEFORE); + wxHtmlCell *after = + m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_AFTER); + + dc->SetBrush(*wxTRANSPARENT_BRUSH); + dc->SetPen(*wxBLACK_PEN); + if (at) + dc->DrawRectangle(at->GetAbsPos(), + wxSize(at->GetWidth(),at->GetHeight())); + dc->SetPen(*wxGREEN_PEN); + if (before) + dc->DrawRectangle(before->GetAbsPos().x+1, before->GetAbsPos().y+1, + before->GetWidth()-2,before->GetHeight()-2); + dc->SetPen(*wxRED_PEN); + if (after) + dc->DrawRectangle(after->GetAbsPos().x+2, after->GetAbsPos().y+2, + after->GetWidth()-4,after->GetHeight()-4); + } +#endif // DEBUG_HTML_SELECTION + + if ( dc != &dcPaint ) + { + dc->SetDeviceOrigin(0,0); + dcPaint.Blit(0, rect.GetTop(), + sz.x, rect.GetBottom() - rect.GetTop() + 1, + dc, + 0, rect.GetTop()); + } } @@ -677,114 +1226,580 @@ void wxHtmlWindow::OnDraw(wxDC& dc) void wxHtmlWindow::OnSize(wxSizeEvent& event) { - wxScrolledWindow::OnSize(event); + event.Skip(); + + m_backBuffer = wxNullBitmap; + CreateLayout(); + + // Recompute selection if necessary: + if ( m_selection ) + { + m_selection->Set(m_selection->GetFromCell(), + m_selection->GetToCell()); + m_selection->ClearFromToCharacterPos(); + } + Refresh(); } -void wxHtmlWindow::OnMouseMove(wxMouseEvent& event) +void wxHtmlWindow::OnMouseMove(wxMouseEvent& WXUNUSED(event)) { - m_tmpMouseMoved = true; + wxHtmlWindowMouseHelper::HandleMouseMoved(); } -void wxHtmlWindow::OnMouseButton(wxMouseEvent& event) +void wxHtmlWindow::OnMouseDown(wxMouseEvent& event) { - SetFocus(); - if ( m_Cell ) +#if wxUSE_CLIPBOARD + if ( event.LeftDown() && IsSelectionEnabled() ) { - int sx, sy; - GetViewStart(&sx, &sy); - sx *= wxHTML_SCROLL_STEP; - sy *= wxHTML_SCROLL_STEP; + const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick + if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN ) + { + SelectLine(CalcUnscrolledPosition(event.GetPosition())); - wxPoint pos = event.GetPosition(); - pos.x += sx; - pos.y += sy; + (void) CopySelection(); + } + else + { + m_makingSelection = true; - wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y); + if ( m_selection ) + { + wxDELETE(m_selection); + Refresh(); + } + m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition()); + m_tmpSelFromCell = NULL; - // VZ: is it possible that we don't find anything at all? - // VS: yes. FindCellByPos returns terminal cell and - // containers may have empty borders - if ( cell ) - OnCellClicked(cell, pos.x, pos.y, event); + CaptureMouse(); + } } -} - +#endif // wxUSE_CLIPBOARD + // in any case, let the default handler set focus to this window + event.Skip(); +} -void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event)) +void wxHtmlWindow::OnMouseUp(wxMouseEvent& event) { - if (s_cur_hand == NULL) +#if wxUSE_CLIPBOARD + if ( m_makingSelection ) { - s_cur_hand = new wxCursor(wxCURSOR_HAND); - s_cur_arrow = new wxCursor(wxCURSOR_ARROW); + ReleaseMouse(); + m_makingSelection = false; + + // if m_selection=NULL, the user didn't move the mouse far enough from + // starting point and the mouse up event is part of a click, the user + // is not selecting text: + if ( m_selection ) + { + CopySelection(Primary); + + // we don't want mouse up event that ended selecting to be + // handled as mouse click and e.g. follow hyperlink: + return; + } } +#endif // wxUSE_CLIPBOARD - if (m_tmpMouseMoved && (m_Cell != NULL)) - { - int sx, sy; - GetViewStart(&sx, &sy); - sx *= wxHTML_SCROLL_STEP; - sy *= wxHTML_SCROLL_STEP; + wxPoint pos = CalcUnscrolledPosition(event.GetPosition()); + if ( !wxHtmlWindowMouseHelper::HandleMouseClick(m_Cell, pos, event) ) + event.Skip(); +} + +#if wxUSE_CLIPBOARD +void wxHtmlWindow::OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event)) +{ + if ( !m_makingSelection ) + return; + + // discard the selecting operation + m_makingSelection = false; + wxDELETE(m_selection); + m_tmpSelFromCell = NULL; + Refresh(); +} +#endif // wxUSE_CLIPBOARD - int x, y; - wxGetMousePosition(&x, &y); - ScreenToClient(&x, &y); - x += sx; - y += sy; + +void wxHtmlWindow::OnInternalIdle() +{ + wxWindow::OnInternalIdle(); + + if (m_Cell != NULL && DidMouseMove()) + { +#ifdef DEBUG_HTML_SELECTION + Refresh(); +#endif + int xc, yc, x, y; + wxGetMousePosition(&xc, &yc); + ScreenToClient(&xc, &yc); + CalcUnscrolledPosition(xc, yc, &x, &y); wxHtmlCell *cell = m_Cell->FindCellByPos(x, y); - if ( cell != m_tmpLastCell ) + + // handle selection update: + if ( m_makingSelection ) { - wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL; + if ( !m_tmpSelFromCell ) + m_tmpSelFromCell = m_Cell->FindCellByPos( + m_tmpSelFromPos.x,m_tmpSelFromPos.y); + + // NB: a trick - we adjust selFromPos to be upper left or bottom + // right corner of the first cell of the selection depending + // on whether the mouse is moving to the right or to the left. + // This gives us more "natural" behaviour when selecting + // a line (specifically, first cell of the next line is not + // included if you drag selection from left to right over + // entire line): + wxPoint dirFromPos; + if ( !m_tmpSelFromCell ) + { + dirFromPos = m_tmpSelFromPos; + } + else + { + dirFromPos = m_tmpSelFromCell->GetAbsPos(); + if ( x < m_tmpSelFromPos.x ) + { + dirFromPos.x += m_tmpSelFromCell->GetWidth(); + dirFromPos.y += m_tmpSelFromCell->GetHeight(); + } + } + bool goingDown = dirFromPos.y < y || + (dirFromPos.y == y && dirFromPos.x < x); + + // determine selection span: + if ( /*still*/ !m_tmpSelFromCell ) + { + if (goingDown) + { + m_tmpSelFromCell = m_Cell->FindCellByPos( + m_tmpSelFromPos.x,m_tmpSelFromPos.y, + wxHTML_FIND_NEAREST_AFTER); + if (!m_tmpSelFromCell) + m_tmpSelFromCell = m_Cell->GetFirstTerminal(); + } + else + { + m_tmpSelFromCell = m_Cell->FindCellByPos( + m_tmpSelFromPos.x,m_tmpSelFromPos.y, + wxHTML_FIND_NEAREST_BEFORE); + if (!m_tmpSelFromCell) + m_tmpSelFromCell = m_Cell->GetLastTerminal(); + } + } - if (lnk != m_tmpLastLink) + wxHtmlCell *selcell = cell; + if (!selcell) { - if (lnk == NULL) + if (goingDown) { - SetCursor(*s_cur_arrow); - if (m_RelatedStatusBar != -1) - m_RelatedFrame->SetStatusText(wxEmptyString, m_RelatedStatusBar); + selcell = m_Cell->FindCellByPos(x, y, + wxHTML_FIND_NEAREST_BEFORE); + if (!selcell) + selcell = m_Cell->GetLastTerminal(); } else { - SetCursor(*s_cur_hand); - if (m_RelatedStatusBar != -1) - m_RelatedFrame->SetStatusText(lnk->GetHref(), m_RelatedStatusBar); + selcell = m_Cell->FindCellByPos(x, y, + wxHTML_FIND_NEAREST_AFTER); + if (!selcell) + selcell = m_Cell->GetFirstTerminal(); } - m_tmpLastLink = lnk; } - m_tmpLastCell = cell; + // NB: it may *rarely* happen that the code above didn't find one + // of the cells, e.g. if wxHtmlWindow doesn't contain any + // visible cells. + if ( selcell && m_tmpSelFromCell ) + { + if ( !m_selection ) + { + // start selecting only if mouse movement was big enough + // (otherwise it was meant as mouse click, not selection): + const int PRECISION = 2; + wxPoint diff = m_tmpSelFromPos - wxPoint(x,y); + if (abs(diff.x) > PRECISION || abs(diff.y) > PRECISION) + { + m_selection = new wxHtmlSelection(); + } + } + if ( m_selection ) + { + if ( m_tmpSelFromCell->IsBefore(selcell) ) + { + m_selection->Set(m_tmpSelFromPos, m_tmpSelFromCell, + wxPoint(x,y), selcell); + } + else + { + m_selection->Set(wxPoint(x,y), selcell, + m_tmpSelFromPos, m_tmpSelFromCell); + } + m_selection->ClearFromToCharacterPos(); + Refresh(); + } + } + } + + // handle cursor and status bar text changes: + + // NB: because we're passing in 'cell' and not 'm_Cell' (so that the + // leaf cell lookup isn't done twice), we need to adjust the + // position for the new root: + wxPoint posInCell(x, y); + if (cell) + posInCell -= cell->GetAbsPos(); + wxHtmlWindowMouseHelper::HandleIdle(cell, posInCell); + } +} + +#if wxUSE_CLIPBOARD +void wxHtmlWindow::StopAutoScrolling() +{ + if ( m_timerAutoScroll ) + { + wxDELETE(m_timerAutoScroll); + } +} + +void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event) +{ + StopAutoScrolling(); + event.Skip(); +} + +void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event) +{ + // don't prevent the usual processing of the event from taking place + event.Skip(); + + // when a captured mouse leave a scrolled window we start generate + // scrolling events to allow, for example, extending selection beyond the + // visible area in some controls + if ( wxWindow::GetCapture() == this ) + { + // where is the mouse leaving? + int pos, orient; + wxPoint pt = event.GetPosition(); + if ( pt.x < 0 ) + { + orient = wxHORIZONTAL; + pos = 0; + } + else if ( pt.y < 0 ) + { + orient = wxVERTICAL; + pos = 0; + } + else // we're lower or to the right of the window + { + wxSize size = GetClientSize(); + if ( pt.x > size.x ) + { + orient = wxHORIZONTAL; + pos = GetVirtualSize().x / wxHTML_SCROLL_STEP; + } + else if ( pt.y > size.y ) + { + orient = wxVERTICAL; + pos = GetVirtualSize().y / wxHTML_SCROLL_STEP; + } + else // this should be impossible + { + // but seems to happen sometimes under wxMSW - maybe it's a bug + // there but for now just ignore it + + //wxFAIL_MSG( wxT("can't understand where has mouse gone") ); + + return; + } + } + + // only start the auto scroll timer if the window can be scrolled in + // this direction + if ( !HasScrollbar(orient) ) + return; + + delete m_timerAutoScroll; + m_timerAutoScroll = new wxHtmlWinAutoScrollTimer + ( + this, + pos == 0 ? wxEVT_SCROLLWIN_LINEUP + : wxEVT_SCROLLWIN_LINEDOWN, + pos, + orient + ); + m_timerAutoScroll->Start(50); // FIXME: make configurable + } +} + +void wxHtmlWindow::OnKeyUp(wxKeyEvent& event) +{ + if ( IsSelectionEnabled() && + (event.GetKeyCode() == 'C' && event.CmdDown()) ) + { + wxClipboardTextEvent evt(wxEVT_TEXT_COPY, GetId()); + + evt.SetEventObject(this); + + GetEventHandler()->ProcessEvent(evt); + } + else + { + event.Skip(); + } +} + +void wxHtmlWindow::OnCopy(wxCommandEvent& WXUNUSED(event)) +{ + (void) CopySelection(); +} + +void wxHtmlWindow::OnClipboardEvent(wxClipboardTextEvent& WXUNUSED(event)) +{ + (void) CopySelection(); +} + +void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event) +{ + // select word under cursor: + if ( IsSelectionEnabled() ) + { + SelectWord(CalcUnscrolledPosition(event.GetPosition())); + + (void) CopySelection(Primary); + + m_lastDoubleClick = wxGetLocalTimeMillis(); + } + else + event.Skip(); +} + +void wxHtmlWindow::SelectWord(const wxPoint& pos) +{ + if ( m_Cell ) + { + wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y); + if ( cell ) + { + delete m_selection; + m_selection = new wxHtmlSelection(); + m_selection->Set(cell, cell); + RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()), + wxSize(cell->GetWidth(), cell->GetHeight()))); } - else // mouse moved but stayed in the same cell + } +} + +void wxHtmlWindow::SelectLine(const wxPoint& pos) +{ + if ( m_Cell ) + { + wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y); + if ( cell ) { - if ( cell ) - OnCellMouseHover(cell, x, y); + // We use following heuristic to find a "line": let the line be all + // cells in same container as the cell under mouse cursor that are + // neither completely above nor completely below the clicked cell + // (i.e. are likely to be words positioned on same line of text). + + int y1 = cell->GetAbsPos().y; + int y2 = y1 + cell->GetHeight(); + int y; + const wxHtmlCell *c; + const wxHtmlCell *before = NULL; + const wxHtmlCell *after = NULL; + + // find last cell of line: + for ( c = cell->GetNext(); c; c = c->GetNext()) + { + y = c->GetAbsPos().y; + if ( y + c->GetHeight() > y1 && y < y2 ) + after = c; + else + break; + } + if ( !after ) + after = cell; + + // find first cell of line: + for ( c = cell->GetParent()->GetFirstChild(); + c && c != cell; c = c->GetNext()) + { + y = c->GetAbsPos().y; + if ( y + c->GetHeight() > y1 && y < y2 ) + { + if ( ! before ) + before = c; + } + else + before = NULL; + } + if ( !before ) + before = cell; + + delete m_selection; + m_selection = new wxHtmlSelection(); + m_selection->Set(before, after); + + Refresh(); } + } +} - m_tmpMouseMoved = FALSE; +void wxHtmlWindow::SelectAll() +{ + if ( m_Cell ) + { + delete m_selection; + m_selection = new wxHtmlSelection(); + m_selection->Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal()); + Refresh(); } } +#endif // wxUSE_CLIPBOARD + + IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject) -IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow) +wxBEGIN_PROPERTIES_TABLE(wxHtmlWindow) +/* + TODO PROPERTIES + style , wxHW_SCROLLBAR_AUTO + borders , (dimension) + url , string + htmlcode , string +*/ +wxEND_PROPERTIES_TABLE() + +wxBEGIN_HANDLERS_TABLE(wxHtmlWindow) +wxEND_HANDLERS_TABLE() + +wxCONSTRUCTOR_5( wxHtmlWindow , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle ) + +wxIMPLEMENT_DYNAMIC_CLASS_XTI(wxHtmlWindow, wxScrolledWindow,"wx/html/htmlwin.h") BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow) EVT_SIZE(wxHtmlWindow::OnSize) - EVT_LEFT_UP(wxHtmlWindow::OnMouseButton) - EVT_RIGHT_UP(wxHtmlWindow::OnMouseButton) + EVT_LEFT_DOWN(wxHtmlWindow::OnMouseDown) + EVT_LEFT_UP(wxHtmlWindow::OnMouseUp) + EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp) EVT_MOTION(wxHtmlWindow::OnMouseMove) - EVT_IDLE(wxHtmlWindow::OnIdle) + EVT_PAINT(wxHtmlWindow::OnPaint) + EVT_ERASE_BACKGROUND(wxHtmlWindow::OnEraseBackground) +#if wxUSE_CLIPBOARD + EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick) + EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter) + EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave) + EVT_MOUSE_CAPTURE_LOST(wxHtmlWindow::OnMouseCaptureLost) + EVT_KEY_UP(wxHtmlWindow::OnKeyUp) + EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy) + EVT_TEXT_COPY(wxID_ANY, wxHtmlWindow::OnClipboardEvent) +#endif // wxUSE_CLIPBOARD END_EVENT_TABLE() +//----------------------------------------------------------------------------- +// wxHtmlWindowInterface implementation in wxHtmlWindow +//----------------------------------------------------------------------------- + +void wxHtmlWindow::SetHTMLWindowTitle(const wxString& title) +{ + OnSetTitle(title); +} + +void wxHtmlWindow::OnHTMLLinkClicked(const wxHtmlLinkInfo& link) +{ + OnLinkClicked(link); +} +wxHtmlOpeningStatus wxHtmlWindow::OnHTMLOpeningURL(wxHtmlURLType type, + const wxString& url, + wxString *redirect) const +{ + return OnOpeningURL(type, url, redirect); +} + +wxPoint wxHtmlWindow::HTMLCoordsToWindow(wxHtmlCell *WXUNUSED(cell), + const wxPoint& pos) const +{ + return CalcScrolledPosition(pos); +} +wxWindow* wxHtmlWindow::GetHTMLWindow() +{ + return this; +} +wxColour wxHtmlWindow::GetHTMLBackgroundColour() const +{ + return GetBackgroundColour(); +} + +void wxHtmlWindow::SetHTMLBackgroundColour(const wxColour& clr) +{ + SetBackgroundColour(clr); +} + +void wxHtmlWindow::SetHTMLBackgroundImage(const wxBitmap& bmpBg) +{ + SetBackgroundImage(bmpBg); +} + +void wxHtmlWindow::SetHTMLStatusText(const wxString& text) +{ +#if wxUSE_STATUSBAR + if (m_RelatedStatusBarIndex != -1) + { + if (m_RelatedStatusBar) + { + m_RelatedStatusBar->SetStatusText(text, m_RelatedStatusBarIndex); + } + else if (m_RelatedFrame) + { + m_RelatedFrame->SetStatusText(text, m_RelatedStatusBarIndex); + } + } +#else + wxUnusedVar(text); +#endif // wxUSE_STATUSBAR +} + +/*static*/ +wxCursor wxHtmlWindow::GetDefaultHTMLCursor(HTMLCursor type) +{ + switch (type) + { + case HTMLCursor_Link: + if ( !ms_cursorLink ) + ms_cursorLink = new wxCursor(wxCURSOR_HAND); + return *ms_cursorLink; + + case HTMLCursor_Text: + if ( !ms_cursorText ) + ms_cursorText = new wxCursor(wxCURSOR_IBEAM); + return *ms_cursorText; + + case HTMLCursor_Default: + default: + return *wxSTANDARD_CURSOR; + } +} + +wxCursor wxHtmlWindow::GetHTMLCursor(HTMLCursor type) const +{ + return GetDefaultHTMLCursor(type); +} + + +//----------------------------------------------------------------------------- +// wxHtmlWinModule +//----------------------------------------------------------------------------- // A module to allow initialization/cleanup // without calling these functions from app.cpp or from @@ -795,7 +1810,7 @@ class wxHtmlWinModule: public wxModule DECLARE_DYNAMIC_CLASS(wxHtmlWinModule) public: wxHtmlWinModule() : wxModule() {} - bool OnInit() { return TRUE; } + bool OnInit() { return true; } void OnExit() { wxHtmlWindow::CleanUpStatics(); } }; @@ -807,4 +1822,4 @@ IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule) #include "wx/html/forcelnk.h" FORCE_WXHTML_MODULES() -#endif +#endif // wxUSE_HTML