src/html/htmlwin.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        htmlwin.cpp
// Purpose:     wxHtmlWindow class for parsing & displaying HTML (implementation)
// Author:      Vaclav Slavik
// RCS-ID:      $Id$
// Copyright:   (c) 1999 Vaclav Slavik
// 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 __BORDLANDC__
#pragma hdrstop
#endif

#ifndef WXPRECOMP
    #include "wx/log.h"
    #include "wx/intl.h"
    #include "wx/dcclient.h"
    #include "wx/frame.h"
#endif

#include "wx/html/htmlwin.h"
#include "wx/html/htmlproc.h"
#include "wx/list.h"

#include "wx/arrimpl.cpp"
#include "wx/listimpl.cpp"

//-----------------------------------------------------------------------------
// wxHtmlHistoryItem
//-----------------------------------------------------------------------------

// item of history list
class WXDLLEXPORT wxHtmlHistoryItem : public wxObject
{
public:
    wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
    int GetPos() const {return m_Pos;}
    void SetPos(int p) {m_Pos = p;}
    const wxString& GetPage() const {return m_Page;}
    const wxString& GetAnchor() const {return m_Anchor;}

private:
    wxString m_Page;
    wxString m_Anchor;
    int m_Pos;
};


//-----------------------------------------------------------------------------
// our private arrays:
//-----------------------------------------------------------------------------

WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
WX_DEFINE_OBJARRAY(wxHtmlHistoryArray);

WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
WX_DEFINE_LIST(wxHtmlProcessorList);

//-----------------------------------------------------------------------------
// wxHtmlWindow
//-----------------------------------------------------------------------------


wxHtmlWindow::wxHtmlWindow(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size,
                long style, const wxString& name) : wxScrolledWindow(parent, id, pos, size, style | wxVSCROLL | wxHSCROLL, name)
{
    m_tmpMouseMoved = FALSE;
    m_tmpLastLink = NULL;
    m_tmpLastCell = NULL;
    m_tmpCanDrawLocks = 0;
    m_FS = new wxFileSystem();
    m_RelatedStatusBar = -1;
    m_RelatedFrame = NULL;
    m_TitleFormat = wxT("%s");
    m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
    m_Cell = NULL;
    m_Parser = new wxHtmlWinParser(this);
    m_Parser->SetFS(m_FS);
    SetBorders(10);
    m_HistoryPos = -1;
    m_HistoryOn = TRUE;
    m_History = new wxHtmlHistoryArray;
    m_Processors = NULL;
    m_Style = style;
    SetPage(wxT("<html><body></body></html>"));
}


wxHtmlWindow::~wxHtmlWindow()
{
    HistoryClear();

    if (m_Cell) delete m_Cell;

    delete m_Parser;
    delete m_FS;
    delete m_History;
    delete m_Processors;
}


void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
{
    m_RelatedFrame = frame;
    m_TitleFormat = format;
}


void wxHtmlWindow::SetRelatedStatusBar(int bar)
{
    m_RelatedStatusBar = bar;
}


void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes)
{
    wxString op = m_OpenedPage;

    m_Parser->SetFonts(normal_face, fixed_face, sizes);
    // fonts changed => contents invalid, so reload the page:
    SetPage(wxT("<html><body></body></html>"));
    if (!op.IsEmpty()) LoadPage(op);
}


bool wxHtmlWindow::SetPage(const wxString& source)
{
    wxString newsrc(source);

    // pass HTML through registered processors:
    if (m_Processors || m_GlobalProcessors)
    {
        wxHtmlProcessorList::Node *nodeL, *nodeG;
        int prL, prG;

        nodeL = (m_Processors) ? m_Processors->GetFirst() : NULL;
        nodeG = (m_GlobalProcessors) ? m_GlobalProcessors->GetFirst() : NULL;

        // VS: there are two lists, global and local, both of them sorted by
        //     priority. Since we have to go through _both_ lists with
        //     decreasing priority, we "merge-sort" the lists on-line by
        //     processing that one of the two heads that has higher priority
        //     in every iteration
        while (nodeL || nodeG)
        {
            prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
            prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
            if (prL > prG)
            {
                if (nodeL->GetData()->IsEnabled())
                    newsrc = nodeL->GetData()->Process(newsrc);
                nodeL = nodeL->GetNext();
            }
            else // prL <= prG
            {
                if (nodeG->GetData()->IsEnabled())
                    newsrc = nodeG->GetData()->Process(newsrc);
                nodeG = nodeG->GetNext();
            }
        }
    }

    // ...and run the parser on it:
    wxClientDC *dc = new wxClientDC(this);
    dc->SetMapMode(wxMM_TEXT);
    SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
    m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
    m_Parser->SetDC(dc);
    if (m_Cell)
    {
        delete m_Cell;
        m_Cell = NULL;
    }
    m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
    delete dc;
    m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
    m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
    CreateLayout();
    if (m_tmpCanDrawLocks == 0)
        Refresh();
    return TRUE;
}

bool wxHtmlWindow::AppendToPage(const wxString& source)
{
    return SetPage(*(GetParser()->GetSource()) + source);
}

bool wxHtmlWindow::LoadPage(const wxString& location)
{
    wxFSFile *f;
    bool rt_val;
    bool needs_refresh = FALSE;

    SetCursor(*wxHOURGLASS_CURSOR);
    wxYield(); Refresh(FALSE);

    m_tmpCanDrawLocks++;
    if (m_HistoryOn && (m_HistoryPos != -1))
    {
        // store scroll position into history item:
        int x, y;
        GetViewStart(&x, &y);
        (*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)
    {
        wxString anch = location.AfterFirst(wxT('#'));
        m_tmpCanDrawLocks--;
        rt_val = ScrollToAnchor(anch);
        m_tmpCanDrawLocks++;
    }
    else if (location.Find(wxT('#')) != wxNOT_FOUND &&
             (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
    {
        wxString anch = location.AfterFirst(wxT('#'));
        m_tmpCanDrawLocks--;
        rt_val = ScrollToAnchor(anch);
        m_tmpCanDrawLocks++;
    }

    else
    {
        needs_refresh = TRUE;
        // load&display it:
        if (m_RelatedStatusBar != -1)
        {
            m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
            Refresh(FALSE);
        }

        f = m_FS->OpenFile(location);

        if (f == NULL)
        {
            wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
            m_tmpCanDrawLocks--;

            SetCursor(*wxSTANDARD_CURSOR);
            return FALSE;
        }

        else
        {
            wxNode *node;
            wxString src = wxEmptyString;

            if (m_RelatedStatusBar != -1)
            {
                wxString msg = _("Loading : ") + location;
                m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
                Refresh(FALSE);
            }

            node = m_Filters.GetFirst();
            while (node)
            {
                wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
                if (h->CanRead(*f))
                {
                    src = h->ReadFile(*f);
                    break;
                }
                node = node->GetNext();
            }
            if (src == wxEmptyString)
            {
                if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
                src = m_DefaultFilter->ReadFile(*f);
            }

            m_FS->ChangePathTo(f->GetLocation());
            rt_val = SetPage(src);
            m_OpenedPage = f->GetLocation();
            if (f->GetAnchor() != wxEmptyString)
            {
                wxYield();
                ScrollToAnchor(f->GetAnchor());
            }

            delete f;

            if (m_RelatedStatusBar != -1) m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
        }
    }

    if (m_HistoryOn) // add this page to history there:
    {
        int c = m_History->GetCount() - (m_HistoryPos + 1);

        if (m_HistoryPos < 0 ||
            (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
            (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
        {
            m_HistoryPos++;
            for (int i = 0; i < c; i++)
                m_History->RemoveAt(m_HistoryPos);
            m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
        }
    }

    if (m_OpenedPageTitle == wxEmptyString)
        OnSetTitle(wxFileNameFromPath(m_OpenedPage));
    SetCursor(*wxSTANDARD_CURSOR);

    if (needs_refresh)
    {
        wxYield();
        m_tmpCanDrawLocks--;
        Refresh();
    }
    else
        m_tmpCanDrawLocks--;

    return rt_val;
}


bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
{
    const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
    if (!c)
    {
        wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
        return FALSE;
    }
    else
    {
        int y;

        for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
        Scroll(-1, y / wxHTML_SCROLL_STEP);
        m_OpenedAnchor = anchor;
        return TRUE;
    }
}


void wxHtmlWindow::OnSetTitle(const wxString& title)
{
    if (m_RelatedFrame)
    {
        wxString tit;
        tit.Printf(m_TitleFormat, title.c_str());
        m_RelatedFrame->SetTitle(tit);
    }
    m_OpenedPageTitle = title;
}


void wxHtmlWindow::CreateLayout()
{
    int ClientWidth, ClientHeight;

    if (!m_Cell) return;

    if (m_Style & wxHW_SCROLLBAR_NEVER)
    {
        SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
        GetClientSize(&ClientWidth, &ClientHeight);
        m_Cell->Layout(ClientWidth);
    }

    else {
        GetClientSize(&ClientWidth, &ClientHeight);
        m_Cell->Layout(ClientWidth);
        if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
        {
            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*/);
        }
        else /* we fit into window, no need for scrollbars */
        {
            SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
            GetClientSize(&ClientWidth, &ClientHeight);
            m_Cell->Layout(ClientWidth); // ...and relayout
        }
    }
}


void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
{
    wxString oldpath;
    wxString tmp;
    int p_fontsizes[7];
    wxString p_fff, p_ffn;

    if (path != wxEmptyString)
    {
        oldpath = cfg->GetPath();
        cfg->SetPath(path);
    }

    m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
    p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
    p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
    for (int i = 0; i < 7; i++)
    {
        tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
        p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
    }
    SetFonts(p_ffn, p_fff, p_fontsizes);

    if (path != wxEmptyString)
        cfg->SetPath(oldpath);
}


void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
{
    wxString oldpath;
    wxString tmp;

    if (path != wxEmptyString)
    {
        oldpath = cfg->GetPath();
        cfg->SetPath(path);
    }

    cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
    cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
    cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
    for (int i = 0; i < 7; i++)
    {
        tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
        cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
    }

    if (path != wxEmptyString)
        cfg->SetPath(oldpath);
}


bool wxHtmlWindow::HistoryBack()
{
    wxString a, l;

    if (m_HistoryPos < 1) return FALSE;

    // store scroll position into history item:
    int x, y;
    GetViewStart(&x, &y);
    (*m_History)[m_HistoryPos].SetPos(y);

    // go to previous position:
    m_HistoryPos--;

    l = (*m_History)[m_HistoryPos].GetPage();
    a = (*m_History)[m_HistoryPos].GetAnchor();
    m_HistoryOn = FALSE;
    m_tmpCanDrawLocks++;
    if (a == wxEmptyString) LoadPage(l);
    else LoadPage(l + wxT("#") + a);
    m_HistoryOn = TRUE;
    wxYield();
    m_tmpCanDrawLocks--;
    Scroll(0, (*m_History)[m_HistoryPos].GetPos());
    Refresh();
    return TRUE;
}

bool wxHtmlWindow::HistoryCanBack()
{
    if (m_HistoryPos < 1) return FALSE;
    return TRUE ;
}


bool wxHtmlWindow::HistoryForward()
{
    wxString a, l;

    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_tmpCanDrawLocks++;
    if (a == wxEmptyString) LoadPage(l);
    else LoadPage(l + wxT("#") + a);
    m_HistoryOn = TRUE;
    wxYield();
    m_tmpCanDrawLocks--;
    Scroll(0, (*m_History)[m_HistoryPos].GetPos());
    Refresh();
    return TRUE;
}

bool wxHtmlWindow::HistoryCanForward()
{
    if (m_HistoryPos == -1) return FALSE;
    if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
    return TRUE ;
}


void wxHtmlWindow::HistoryClear()
{
    m_History->Empty();
    m_HistoryPos = -1;
}

void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
{
    if (!m_Processors)
    {
        m_Processors = new wxHtmlProcessorList;
        m_Processors->DeleteContents(TRUE);
    }
    wxHtmlProcessorList::Node *node;

    for (node = m_Processors->GetFirst(); node; node = node->GetNext())
    {
        if (processor->GetPriority() > node->GetData()->GetPriority())
        {
            m_Processors->Insert(node, processor);
            return;
        }
    }
    m_Processors->Append(processor);
}

/*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
{
    if (!m_GlobalProcessors)
    {
        m_GlobalProcessors = new wxHtmlProcessorList;
        m_GlobalProcessors->DeleteContents(TRUE);
    }
    wxHtmlProcessorList::Node *node;

    for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
    {
        if (processor->GetPriority() > node->GetData()->GetPriority())
        {
            m_GlobalProcessors->Insert(node, processor);
            return;
        }
    }
    m_GlobalProcessors->Append(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::CleanUpStatics()
{
    delete m_DefaultFilter;
    m_DefaultFilter = NULL;
    m_Filters.DeleteContents(TRUE);
    m_Filters.Clear();
    delete m_GlobalProcessors;
    m_GlobalProcessors = NULL;
    delete s_cur_hand;
    delete s_cur_arrow;
}


void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
{
    m_Filters.Append(filter);
}


void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
{
    LoadPage(link.GetHref());
}

void wxHtmlWindow::OnCellClicked(wxHtmlCell *cell,
                                 wxCoord x, wxCoord y,
                                 const wxMouseEvent& event)
{
    wxCHECK_RET( cell, _T("can't be called with NULL cell") );

    cell->OnMouseClick(this, x, y, event);
}

void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
                                    wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
{
    // do nothing here
}

void wxHtmlWindow::OnDraw(wxDC& dc)
{
    int x, y;
    wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
    int v_y, v_h;

    if (m_tmpCanDrawLocks > 0) return;

    dc.SetMapMode(wxMM_TEXT);
    dc.SetBackgroundMode(wxTRANSPARENT);
    GetViewStart(&x, &y);

    while (upd)
    {
        v_y = upd.GetY();
        v_h = upd.GetH();
        if (m_Cell) m_Cell->Draw(dc, 0, 0, y * wxHTML_SCROLL_STEP + v_y, y * wxHTML_SCROLL_STEP + v_h + v_y);
        upd++;
    }
}


void wxHtmlWindow::OnSize(wxSizeEvent& event)
{
    wxScrolledWindow::OnSize(event);
    CreateLayout();
    Refresh();
}


void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event)
{
    m_tmpMouseMoved = TRUE;

    if (event.ButtonDown())
    {
        if ( m_Cell )
        {
            int sx, sy;
            GetViewStart(&sx, &sy);
            sx *= wxHTML_SCROLL_STEP;
            sy *= wxHTML_SCROLL_STEP;

            wxPoint pos = event.GetPosition();
            pos.x += sx;
            pos.y += sy;

            wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);

            // 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);
        }
    }
}


void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
{
    if (s_cur_hand == NULL)
    {
        s_cur_hand = new wxCursor(wxCURSOR_HAND);
        s_cur_arrow = new wxCursor(wxCURSOR_ARROW);
    }

    if (m_tmpMouseMoved && (m_Cell != NULL))
    {
        int sx, sy;
        GetViewStart(&sx, &sy);
        sx *= wxHTML_SCROLL_STEP;
        sy *= wxHTML_SCROLL_STEP;

        int x, y;
        wxGetMousePosition(&x, &y);
        ScreenToClient(&x, &y);
        x += sx;
        y += sy;

        wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
        if ( cell != m_tmpLastCell )
        {
            wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL;

            if (lnk != m_tmpLastLink)
            {
                if (lnk == NULL)
                {
                    SetCursor(*s_cur_arrow);
                    if (m_RelatedStatusBar != -1)
                        m_RelatedFrame->SetStatusText(wxEmptyString, m_RelatedStatusBar);
                }
                else
                {
                    SetCursor(*s_cur_hand);
                    if (m_RelatedStatusBar != -1)
                        m_RelatedFrame->SetStatusText(lnk->GetHref(), m_RelatedStatusBar);
                }
                m_tmpLastLink = lnk;
            }

            m_tmpLastCell = cell;
        }
        else // mouse moved but stayed in the same cell
        {
            if ( cell )
                OnCellMouseHover(cell, x, y);
        }

        m_tmpMouseMoved = FALSE;
    }
}


IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)

IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)

BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
    EVT_SIZE(wxHtmlWindow::OnSize)
    EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent)
    EVT_RIGHT_DOWN(wxHtmlWindow::OnMouseEvent)
    EVT_MOTION(wxHtmlWindow::OnMouseEvent)
    EVT_IDLE(wxHtmlWindow::OnIdle)
END_EVENT_TABLE()


// A module to allow initialization/cleanup
// without calling these functions from app.cpp or from
// the user's application.

class wxHtmlWinModule: public wxModule
{
DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
public:
    wxHtmlWinModule() : wxModule() {}
    bool OnInit() { return TRUE; }
    void OnExit() { wxHtmlWindow::CleanUpStatics(); }
};

IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)


// This hack forces the linker to always link in m_* files
// (wxHTML doesn't work without handlers from these files)
#include "wx/html/forcelnk.h"
FORCE_WXHTML_MODULES()

#endif
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: htmlwin.cpp
	3	// Purpose: wxHtmlWindow class for parsing & displaying HTML (implementation)
	4	// Author: Vaclav Slavik
	5	// RCS-ID: $Id$
	6	// Copyright: (c) 1999 Vaclav Slavik
	7	// Licence: wxWindows Licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10
	11	#ifdef __GNUG__
	12	#pragma implementation "htmlwin.h"
	13	#pragma implementation "htmlproc.h"
	14	#endif
	15
	16	#include "wx/wxprec.h"
	17
	18	#include "wx/defs.h"
	19	#if wxUSE_HTML && wxUSE_STREAMS
	20
	21	#ifdef __BORDLANDC__
	22	#pragma hdrstop
	23	#endif
	24
	25	#ifndef WXPRECOMP
	26	#include "wx/log.h"
	27	#include "wx/intl.h"
	28	#include "wx/dcclient.h"
	29	#include "wx/frame.h"
	30	#endif
	31
	32	#include "wx/html/htmlwin.h"
	33	#include "wx/html/htmlproc.h"
	34	#include "wx/list.h"
	35
	36	#include "wx/arrimpl.cpp"
	37	#include "wx/listimpl.cpp"
	38
	39	//-----------------------------------------------------------------------------
	40	// wxHtmlHistoryItem
	41	//-----------------------------------------------------------------------------
	42
	43	// item of history list
	44	class WXDLLEXPORT wxHtmlHistoryItem : public wxObject
	45	{
	46	public:
	47	wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
	48	int GetPos() const {return m_Pos;}
	49	void SetPos(int p) {m_Pos = p;}
	50	const wxString& GetPage() const {return m_Page;}
	51	const wxString& GetAnchor() const {return m_Anchor;}
	52
	53	private:
	54	wxString m_Page;
	55	wxString m_Anchor;
	56	int m_Pos;
	57	};
	58
	59
	60	//-----------------------------------------------------------------------------
	61	// our private arrays:
	62	//-----------------------------------------------------------------------------
	63
	64	WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
	65	WX_DEFINE_OBJARRAY(wxHtmlHistoryArray);
	66
	67	WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
	68	WX_DEFINE_LIST(wxHtmlProcessorList);
	69
	70	//-----------------------------------------------------------------------------
	71	// wxHtmlWindow
	72	//-----------------------------------------------------------------------------
	73
	74
	75	wxHtmlWindow::wxHtmlWindow(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size,
	76	long style, const wxString& name) : wxScrolledWindow(parent, id, pos, size, style \| wxVSCROLL \| wxHSCROLL, name)
	77	{
	78	m_tmpMouseMoved = FALSE;
	79	m_tmpLastLink = NULL;
	80	m_tmpLastCell = NULL;
	81	m_tmpCanDrawLocks = 0;
	82	m_FS = new wxFileSystem();
	83	m_RelatedStatusBar = -1;
	84	m_RelatedFrame = NULL;
	85	m_TitleFormat = wxT("%s");
	86	m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
	87	m_Cell = NULL;
	88	m_Parser = new wxHtmlWinParser(this);
	89	m_Parser->SetFS(m_FS);
	90	SetBorders(10);
	91	m_HistoryPos = -1;
	92	m_HistoryOn = TRUE;
	93	m_History = new wxHtmlHistoryArray;
	94	m_Processors = NULL;
	95	m_Style = style;
	96	SetPage(wxT("<html><body></body></html>"));
	97	}
	98
	99
	100
	101	wxHtmlWindow::~wxHtmlWindow()
	102	{
	103	HistoryClear();
	104
	105	if (m_Cell) delete m_Cell;
	106
	107	delete m_Parser;
	108	delete m_FS;
	109	delete m_History;
	110	delete m_Processors;
	111	}
	112
	113
	114
	115	void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
	116	{
	117	m_RelatedFrame = frame;
	118	m_TitleFormat = format;
	119	}
	120
	121
	122
	123	void wxHtmlWindow::SetRelatedStatusBar(int bar)
	124	{
	125	m_RelatedStatusBar = bar;
	126	}
	127
	128
	129
	130	void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes)
	131	{
	132	wxString op = m_OpenedPage;
	133
	134	m_Parser->SetFonts(normal_face, fixed_face, sizes);
	135	// fonts changed => contents invalid, so reload the page:
	136	SetPage(wxT("<html><body></body></html>"));
	137	if (!op.IsEmpty()) LoadPage(op);
	138	}
	139
	140
	141
	142	bool wxHtmlWindow::SetPage(const wxString& source)
	143	{
	144	wxString newsrc(source);
	145
	146	// pass HTML through registered processors:
	147	if (m_Processors \|\| m_GlobalProcessors)
	148	{
	149	wxHtmlProcessorList::Node nodeL, nodeG;
	150	int prL, prG;
	151
	152	nodeL = (m_Processors) ? m_Processors->GetFirst() : NULL;
	153	nodeG = (m_GlobalProcessors) ? m_GlobalProcessors->GetFirst() : NULL;
	154
	155	// VS: there are two lists, global and local, both of them sorted by
	156	// priority. Since we have to go through _both_ lists with
	157	// decreasing priority, we "merge-sort" the lists on-line by
	158	// processing that one of the two heads that has higher priority
	159	// in every iteration
	160	while (nodeL \|\| nodeG)
	161	{
	162	prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
	163	prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
	164	if (prL > prG)
	165	{
	166	if (nodeL->GetData()->IsEnabled())
	167	newsrc = nodeL->GetData()->Process(newsrc);
	168	nodeL = nodeL->GetNext();
	169	}
	170	else // prL <= prG
	171	{
	172	if (nodeG->GetData()->IsEnabled())
	173	newsrc = nodeG->GetData()->Process(newsrc);
	174	nodeG = nodeG->GetNext();
	175	}
	176	}
	177	}
	178
	179	// ...and run the parser on it:
	180	wxClientDC *dc = new wxClientDC(this);
	181	dc->SetMapMode(wxMM_TEXT);
	182	SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
	183	m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
	184	m_Parser->SetDC(dc);
	185	if (m_Cell)
	186	{
	187	delete m_Cell;
	188	m_Cell = NULL;
	189	}
	190	m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
	191	delete dc;
	192	m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
	193	m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
	194	CreateLayout();
	195	if (m_tmpCanDrawLocks == 0)
	196	Refresh();
	197	return TRUE;
	198	}
	199
	200	bool wxHtmlWindow::AppendToPage(const wxString& source)
	201	{
	202	return SetPage(*(GetParser()->GetSource()) + source);
	203	}
	204
	205	bool wxHtmlWindow::LoadPage(const wxString& location)
	206	{
	207	wxFSFile *f;
	208	bool rt_val;
	209	bool needs_refresh = FALSE;
	210
	211	SetCursor(*wxHOURGLASS_CURSOR);
	212	wxYield(); Refresh(FALSE);
	213
	214	m_tmpCanDrawLocks++;
	215	if (m_HistoryOn && (m_HistoryPos != -1))
	216	{
	217	// store scroll position into history item:
	218	int x, y;
	219	GetViewStart(&x, &y);
	220	(*m_History)[m_HistoryPos].SetPos(y);
	221	}
	222
	223	if (location[0] == wxT('#'))
	224	{
	225	// local anchor:
	226	wxString anch = location.Mid(1) /1 to end/;
	227	m_tmpCanDrawLocks--;
	228	rt_val = ScrollToAnchor(anch);
	229	m_tmpCanDrawLocks++;
	230	}
	231	else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
	232	{
	233	wxString anch = location.AfterFirst(wxT('#'));
	234	m_tmpCanDrawLocks--;
	235	rt_val = ScrollToAnchor(anch);
	236	m_tmpCanDrawLocks++;
	237	}
	238	else if (location.Find(wxT('#')) != wxNOT_FOUND &&
	239	(m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
	240	{
	241	wxString anch = location.AfterFirst(wxT('#'));
	242	m_tmpCanDrawLocks--;
	243	rt_val = ScrollToAnchor(anch);
	244	m_tmpCanDrawLocks++;
	245	}
	246
	247	else
	248	{
	249	needs_refresh = TRUE;
	250	// load&display it:
	251	if (m_RelatedStatusBar != -1)
	252	{
	253	m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
	254	Refresh(FALSE);
	255	}
	256
	257	f = m_FS->OpenFile(location);
	258
	259	if (f == NULL)
	260	{
	261	wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
	262	m_tmpCanDrawLocks--;
	263
	264	SetCursor(*wxSTANDARD_CURSOR);
	265	return FALSE;
	266	}
	267
	268	else
	269	{
	270	wxNode *node;
	271	wxString src = wxEmptyString;
	272
	273	if (m_RelatedStatusBar != -1)
	274	{
	275	wxString msg = _("Loading : ") + location;
	276	m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
	277	Refresh(FALSE);
	278	}
	279
	280	node = m_Filters.GetFirst();
	281	while (node)
	282	{
	283	wxHtmlFilter h = (wxHtmlFilter) node->GetData();
	284	if (h->CanRead(*f))
	285	{
	286	src = h->ReadFile(*f);
	287	break;
	288	}
	289	node = node->GetNext();
	290	}
	291	if (src == wxEmptyString)
	292	{
	293	if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
	294	src = m_DefaultFilter->ReadFile(*f);
	295	}
	296
	297	m_FS->ChangePathTo(f->GetLocation());
	298	rt_val = SetPage(src);
	299	m_OpenedPage = f->GetLocation();
	300	if (f->GetAnchor() != wxEmptyString)
	301	{
	302	wxYield();
	303	ScrollToAnchor(f->GetAnchor());
	304	}
	305
	306	delete f;
	307
	308	if (m_RelatedStatusBar != -1) m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
	309	}
	310	}
	311
	312	if (m_HistoryOn) // add this page to history there:
	313	{
	314	int c = m_History->GetCount() - (m_HistoryPos + 1);
	315
	316	if (m_HistoryPos < 0 \|\|
	317	(*m_History)[m_HistoryPos].GetPage() != m_OpenedPage \|\|
	318	(*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
	319	{
	320	m_HistoryPos++;
	321	for (int i = 0; i < c; i++)
	322	m_History->RemoveAt(m_HistoryPos);
	323	m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
	324	}
	325	}
	326
	327	if (m_OpenedPageTitle == wxEmptyString)
	328	OnSetTitle(wxFileNameFromPath(m_OpenedPage));
	329	SetCursor(*wxSTANDARD_CURSOR);
	330
	331	if (needs_refresh)
	332	{
	333	wxYield();
	334	m_tmpCanDrawLocks--;
	335	Refresh();
	336	}
	337	else
	338	m_tmpCanDrawLocks--;
	339
	340	return rt_val;
	341	}
	342
	343
	344
	345	bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
	346	{
	347	const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
	348	if (!c)
	349	{
	350	wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
	351	return FALSE;
	352	}
	353	else
	354	{
	355	int y;
	356
	357	for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
	358	Scroll(-1, y / wxHTML_SCROLL_STEP);
	359	m_OpenedAnchor = anchor;
	360	return TRUE;
	361	}
	362	}
	363
	364
	365	void wxHtmlWindow::OnSetTitle(const wxString& title)
	366	{
	367	if (m_RelatedFrame)
	368	{
	369	wxString tit;
	370	tit.Printf(m_TitleFormat, title.c_str());
	371	m_RelatedFrame->SetTitle(tit);
	372	}
	373	m_OpenedPageTitle = title;
	374	}
	375
	376
	377
	378
	379
	380	void wxHtmlWindow::CreateLayout()
	381	{
	382	int ClientWidth, ClientHeight;
	383
	384	if (!m_Cell) return;
	385
	386	if (m_Style & wxHW_SCROLLBAR_NEVER)
	387	{
	388	SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
	389	GetClientSize(&ClientWidth, &ClientHeight);
	390	m_Cell->Layout(ClientWidth);
	391	}
	392
	393	else {
	394	GetClientSize(&ClientWidth, &ClientHeight);
	395	m_Cell->Layout(ClientWidth);
	396	if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
	397	{
	398	SetScrollbars(
	399	wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
	400	m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
	401	(m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
	402	/cheat: top-level frag is always container/);
	403	}
	404	else /* we fit into window, no need for scrollbars */
	405	{
	406	SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
	407	GetClientSize(&ClientWidth, &ClientHeight);
	408	m_Cell->Layout(ClientWidth); // ...and relayout
	409	}
	410	}
	411	}
	412
	413
	414
	415	void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
	416	{
	417	wxString oldpath;
	418	wxString tmp;
	419	int p_fontsizes[7];
	420	wxString p_fff, p_ffn;
	421
	422	if (path != wxEmptyString)
	423	{
	424	oldpath = cfg->GetPath();
	425	cfg->SetPath(path);
	426	}
	427
	428	m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
	429	p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
	430	p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
	431	for (int i = 0; i < 7; i++)
	432	{
	433	tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
	434	p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
	435	}
	436	SetFonts(p_ffn, p_fff, p_fontsizes);
	437
	438	if (path != wxEmptyString)
	439	cfg->SetPath(oldpath);
	440	}
	441
	442
	443
	444	void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
	445	{
	446	wxString oldpath;
	447	wxString tmp;
	448
	449	if (path != wxEmptyString)
	450	{
	451	oldpath = cfg->GetPath();
	452	cfg->SetPath(path);
	453	}
	454
	455	cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
	456	cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
	457	cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
	458	for (int i = 0; i < 7; i++)
	459	{
	460	tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
	461	cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
	462	}
	463
	464	if (path != wxEmptyString)
	465	cfg->SetPath(oldpath);
	466	}
	467
	468
	469
	470	bool wxHtmlWindow::HistoryBack()
	471	{
	472	wxString a, l;
	473
	474	if (m_HistoryPos < 1) return FALSE;
	475
	476	// store scroll position into history item:
	477	int x, y;
	478	GetViewStart(&x, &y);
	479	(*m_History)[m_HistoryPos].SetPos(y);
	480
	481	// go to previous position:
	482	m_HistoryPos--;
	483
	484	l = (*m_History)[m_HistoryPos].GetPage();
	485	a = (*m_History)[m_HistoryPos].GetAnchor();
	486	m_HistoryOn = FALSE;
	487	m_tmpCanDrawLocks++;
	488	if (a == wxEmptyString) LoadPage(l);
	489	else LoadPage(l + wxT("#") + a);
	490	m_HistoryOn = TRUE;
	491	wxYield();
	492	m_tmpCanDrawLocks--;
	493	Scroll(0, (*m_History)[m_HistoryPos].GetPos());
	494	Refresh();
	495	return TRUE;
	496	}
	497
	498	bool wxHtmlWindow::HistoryCanBack()
	499	{
	500	if (m_HistoryPos < 1) return FALSE;
	501	return TRUE ;
	502	}
	503
	504
	505	bool wxHtmlWindow::HistoryForward()
	506	{
	507	wxString a, l;
	508
	509	if (m_HistoryPos == -1) return FALSE;
	510	if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
	511
	512	m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
	513
	514	m_HistoryPos++;
	515	l = (*m_History)[m_HistoryPos].GetPage();
	516	a = (*m_History)[m_HistoryPos].GetAnchor();
	517	m_HistoryOn = FALSE;
	518	m_tmpCanDrawLocks++;
	519	if (a == wxEmptyString) LoadPage(l);
	520	else LoadPage(l + wxT("#") + a);
	521	m_HistoryOn = TRUE;
	522	wxYield();
	523	m_tmpCanDrawLocks--;
	524	Scroll(0, (*m_History)[m_HistoryPos].GetPos());
	525	Refresh();
	526	return TRUE;
	527	}
	528
	529	bool wxHtmlWindow::HistoryCanForward()
	530	{
	531	if (m_HistoryPos == -1) return FALSE;
	532	if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
	533	return TRUE ;
	534	}
	535
	536
	537	void wxHtmlWindow::HistoryClear()
	538	{
	539	m_History->Empty();
	540	m_HistoryPos = -1;
	541	}
	542
	543	void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
	544	{
	545	if (!m_Processors)
	546	{
	547	m_Processors = new wxHtmlProcessorList;
	548	m_Processors->DeleteContents(TRUE);
	549	}
	550	wxHtmlProcessorList::Node *node;
	551
	552	for (node = m_Processors->GetFirst(); node; node = node->GetNext())
	553	{
	554	if (processor->GetPriority() > node->GetData()->GetPriority())
	555	{
	556	m_Processors->Insert(node, processor);
	557	return;
	558	}
	559	}
	560	m_Processors->Append(processor);
	561	}
	562
	563	/static / void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
	564	{
	565	if (!m_GlobalProcessors)
	566	{
	567	m_GlobalProcessors = new wxHtmlProcessorList;
	568	m_GlobalProcessors->DeleteContents(TRUE);
	569	}
	570	wxHtmlProcessorList::Node *node;
	571
	572	for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
	573	{
	574	if (processor->GetPriority() > node->GetData()->GetPriority())
	575	{
	576	m_GlobalProcessors->Insert(node, processor);
	577	return;
	578	}
	579	}
	580	m_GlobalProcessors->Append(processor);
	581	}
	582
	583
	584
	585	wxList wxHtmlWindow::m_Filters;
	586	wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
	587	wxCursor *wxHtmlWindow::s_cur_hand = NULL;
	588	wxCursor *wxHtmlWindow::s_cur_arrow = NULL;
	589	wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
	590
	591	void wxHtmlWindow::CleanUpStatics()
	592	{
	593	delete m_DefaultFilter;
	594	m_DefaultFilter = NULL;
	595	m_Filters.DeleteContents(TRUE);
	596	m_Filters.Clear();
	597	delete m_GlobalProcessors;
	598	m_GlobalProcessors = NULL;
	599	delete s_cur_hand;
	600	delete s_cur_arrow;
	601	}
	602
	603
	604
	605	void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
	606	{
	607	m_Filters.Append(filter);
	608	}
	609
	610
	611
	612
	613	void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
	614	{
	615	LoadPage(link.GetHref());
	616	}
	617
	618	void wxHtmlWindow::OnCellClicked(wxHtmlCell *cell,
	619	wxCoord x, wxCoord y,
	620	const wxMouseEvent& event)
	621	{
	622	wxCHECK_RET( cell, _T("can't be called with NULL cell") );
	623
	624	cell->OnMouseClick(this, x, y, event);
	625	}
	626
	627	void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
	628	wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
	629	{
	630	// do nothing here
	631	}
	632
	633	void wxHtmlWindow::OnDraw(wxDC& dc)
	634	{
	635	int x, y;
	636	wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
	637	int v_y, v_h;
	638
	639	if (m_tmpCanDrawLocks > 0) return;
	640
	641	dc.SetMapMode(wxMM_TEXT);
	642	dc.SetBackgroundMode(wxTRANSPARENT);
	643	GetViewStart(&x, &y);
	644
	645	while (upd)
	646	{
	647	v_y = upd.GetY();
	648	v_h = upd.GetH();
	649	if (m_Cell) m_Cell->Draw(dc, 0, 0, y * wxHTML_SCROLL_STEP + v_y, y * wxHTML_SCROLL_STEP + v_h + v_y);
	650	upd++;
	651	}
	652	}
	653
	654
	655
	656
	657	void wxHtmlWindow::OnSize(wxSizeEvent& event)
	658	{
	659	wxScrolledWindow::OnSize(event);
	660	CreateLayout();
	661	Refresh();
	662	}
	663
	664
	665	void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event)
	666	{
	667	m_tmpMouseMoved = TRUE;
	668
	669	if (event.ButtonDown())
	670	{
	671	if ( m_Cell )
	672	{
	673	int sx, sy;
	674	GetViewStart(&sx, &sy);
	675	sx *= wxHTML_SCROLL_STEP;
	676	sy *= wxHTML_SCROLL_STEP;
	677
	678	wxPoint pos = event.GetPosition();
	679	pos.x += sx;
	680	pos.y += sy;
	681
	682	wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
	683
	684	// VZ: is it possible that we don't find anything at all?
	685	// VS: yes. FindCellByPos returns terminal cell and
	686	// containers may have empty borders
	687	if ( cell )
	688	OnCellClicked(cell, pos.x, pos.y, event);
	689	}
	690	}
	691	}
	692
	693
	694
	695	void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
	696	{
	697	if (s_cur_hand == NULL)
	698	{
	699	s_cur_hand = new wxCursor(wxCURSOR_HAND);
	700	s_cur_arrow = new wxCursor(wxCURSOR_ARROW);
	701	}
	702
	703	if (m_tmpMouseMoved && (m_Cell != NULL))
	704	{
	705	int sx, sy;
	706	GetViewStart(&sx, &sy);
	707	sx *= wxHTML_SCROLL_STEP;
	708	sy *= wxHTML_SCROLL_STEP;
	709
	710	int x, y;
	711	wxGetMousePosition(&x, &y);
	712	ScreenToClient(&x, &y);
	713	x += sx;
	714	y += sy;
	715
	716	wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
	717	if ( cell != m_tmpLastCell )
	718	{
	719	wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL;
	720
	721	if (lnk != m_tmpLastLink)
	722	{
	723	if (lnk == NULL)
	724	{
	725	SetCursor(*s_cur_arrow);
	726	if (m_RelatedStatusBar != -1)
	727	m_RelatedFrame->SetStatusText(wxEmptyString, m_RelatedStatusBar);
	728	}
	729	else
	730	{
	731	SetCursor(*s_cur_hand);
	732	if (m_RelatedStatusBar != -1)
	733	m_RelatedFrame->SetStatusText(lnk->GetHref(), m_RelatedStatusBar);
	734	}
	735	m_tmpLastLink = lnk;
	736	}
	737
	738	m_tmpLastCell = cell;
	739	}
	740	else // mouse moved but stayed in the same cell
	741	{
	742	if ( cell )
	743	OnCellMouseHover(cell, x, y);
	744	}
	745
	746	m_tmpMouseMoved = FALSE;
	747	}
	748	}
	749
	750
	751	IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
	752
	753	IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
	754
	755	BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
	756	EVT_SIZE(wxHtmlWindow::OnSize)
	757	EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent)
	758	EVT_RIGHT_DOWN(wxHtmlWindow::OnMouseEvent)
	759	EVT_MOTION(wxHtmlWindow::OnMouseEvent)
	760	EVT_IDLE(wxHtmlWindow::OnIdle)
	761	END_EVENT_TABLE()
	762
	763
	764
	765
	766
	767	// A module to allow initialization/cleanup
	768	// without calling these functions from app.cpp or from
	769	// the user's application.
	770
	771	class wxHtmlWinModule: public wxModule
	772	{
	773	DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
	774	public:
	775	wxHtmlWinModule() : wxModule() {}
	776	bool OnInit() { return TRUE; }
	777	void OnExit() { wxHtmlWindow::CleanUpStatics(); }
	778	};
	779
	780	IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
	781
	782
	783	// This hack forces the linker to always link in m_* files
	784	// (wxHTML doesn't work without handlers from these files)
	785	#include "wx/html/forcelnk.h"
	786	FORCE_WXHTML_MODULES()
	787
	788	#endif