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::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
	201	bool wxHtmlWindow::LoadPage(const wxString& location)
	202	{
	203	wxFSFile *f;
	204	bool rt_val;
	205	bool needs_refresh = FALSE;
	206
	207	SetCursor(*wxHOURGLASS_CURSOR);
	208	wxYield(); Refresh(FALSE);
	209
	210	m_tmpCanDrawLocks++;
	211	if (m_HistoryOn && (m_HistoryPos != -1))
	212	{
	213	// store scroll position into history item:
	214	int x, y;
	215	GetViewStart(&x, &y);
	216	(*m_History)[m_HistoryPos].SetPos(y);
	217	}
	218
	219	if (location[0] == wxT('#'))
	220	{
	221	// local anchor:
	222	wxString anch = location.Mid(1) /1 to end/;
	223	m_tmpCanDrawLocks--;
	224	rt_val = ScrollToAnchor(anch);
	225	m_tmpCanDrawLocks++;
	226	}
	227	else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
	228	{
	229	wxString anch = location.AfterFirst(wxT('#'));
	230	m_tmpCanDrawLocks--;
	231	rt_val = ScrollToAnchor(anch);
	232	m_tmpCanDrawLocks++;
	233	}
	234	else if (location.Find(wxT('#')) != wxNOT_FOUND &&
	235	(m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
	236	{
	237	wxString anch = location.AfterFirst(wxT('#'));
	238	m_tmpCanDrawLocks--;
	239	rt_val = ScrollToAnchor(anch);
	240	m_tmpCanDrawLocks++;
	241	}
	242
	243	else
	244	{
	245	needs_refresh = TRUE;
	246	// load&display it:
	247	if (m_RelatedStatusBar != -1)
	248	{
	249	m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
	250	Refresh(FALSE);
	251	}
	252
	253	f = m_FS->OpenFile(location);
	254
	255	if (f == NULL)
	256	{
	257	wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
	258	m_tmpCanDrawLocks--;
	259
	260	SetCursor(*wxSTANDARD_CURSOR);
	261	return FALSE;
	262	}
	263
	264	else
	265	{
	266	wxNode *node;
	267	wxString src = wxEmptyString;
	268
	269	if (m_RelatedStatusBar != -1)
	270	{
	271	wxString msg = _("Loading : ") + location;
	272	m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
	273	Refresh(FALSE);
	274	}
	275
	276	node = m_Filters.GetFirst();
	277	while (node)
	278	{
	279	wxHtmlFilter h = (wxHtmlFilter) node->GetData();
	280	if (h->CanRead(*f))
	281	{
	282	src = h->ReadFile(*f);
	283	break;
	284	}
	285	node = node->GetNext();
	286	}
	287	if (src == wxEmptyString)
	288	{
	289	if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
	290	src = m_DefaultFilter->ReadFile(*f);
	291	}
	292
	293	m_FS->ChangePathTo(f->GetLocation());
	294	rt_val = SetPage(src);
	295	m_OpenedPage = f->GetLocation();
	296	if (f->GetAnchor() != wxEmptyString)
	297	{
	298	wxYield();
	299	ScrollToAnchor(f->GetAnchor());
	300	}
	301
	302	delete f;
	303
	304	if (m_RelatedStatusBar != -1) m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
	305	}
	306	}
	307
	308	if (m_HistoryOn) // add this page to history there:
	309	{
	310	int c = m_History->GetCount() - (m_HistoryPos + 1);
	311
	312	if (m_HistoryPos < 0 \|\|
	313	(*m_History)[m_HistoryPos].GetPage() != m_OpenedPage \|\|
	314	(*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
	315	{
	316	m_HistoryPos++;
	317	for (int i = 0; i < c; i++)
	318	m_History->RemoveAt(m_HistoryPos);
	319	m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
	320	}
	321	}
	322
	323	if (m_OpenedPageTitle == wxEmptyString)
	324	OnSetTitle(wxFileNameFromPath(m_OpenedPage));
	325	SetCursor(*wxSTANDARD_CURSOR);
	326
	327	if (needs_refresh)
	328	{
	329	wxYield();
	330	m_tmpCanDrawLocks--;
	331	Refresh();
	332	}
	333	else
	334	m_tmpCanDrawLocks--;
	335
	336	return rt_val;
	337	}
	338
	339
	340
	341	bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
	342	{
	343	const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
	344	if (!c)
	345	{
	346	wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
	347	return FALSE;
	348	}
	349	else
	350	{
	351	int y;
	352
	353	for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
	354	Scroll(-1, y / wxHTML_SCROLL_STEP);
	355	m_OpenedAnchor = anchor;
	356	return TRUE;
	357	}
	358	}
	359
	360
	361	void wxHtmlWindow::OnSetTitle(const wxString& title)
	362	{
	363	if (m_RelatedFrame)
	364	{
	365	wxString tit;
	366	tit.Printf(m_TitleFormat, title.c_str());
	367	m_RelatedFrame->SetTitle(tit);
	368	}
	369	m_OpenedPageTitle = title;
	370	}
	371
	372
	373
	374
	375
	376	void wxHtmlWindow::CreateLayout()
	377	{
	378	int ClientWidth, ClientHeight;
	379
	380	if (!m_Cell) return;
	381
	382	if (m_Style & wxHW_SCROLLBAR_NEVER)
	383	{
	384	SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
	385	GetClientSize(&ClientWidth, &ClientHeight);
	386	m_Cell->Layout(ClientWidth);
	387	}
	388
	389	else {
	390	GetClientSize(&ClientWidth, &ClientHeight);
	391	m_Cell->Layout(ClientWidth);
	392	if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
	393	{
	394	SetScrollbars(
	395	wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
	396	m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
	397	(m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
	398	/cheat: top-level frag is always container/);
	399	}
	400	else /* we fit into window, no need for scrollbars */
	401	{
	402	SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
	403	GetClientSize(&ClientWidth, &ClientHeight);
	404	m_Cell->Layout(ClientWidth); // ...and relayout
	405	}
	406	}
	407	}
	408
	409
	410
	411	void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
	412	{
	413	wxString oldpath;
	414	wxString tmp;
	415	int p_fontsizes[7];
	416	wxString p_fff, p_ffn;
	417
	418	if (path != wxEmptyString)
	419	{
	420	oldpath = cfg->GetPath();
	421	cfg->SetPath(path);
	422	}
	423
	424	m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
	425	p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
	426	p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
	427	for (int i = 0; i < 7; i++)
	428	{
	429	tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
	430	p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
	431	}
	432	SetFonts(p_ffn, p_fff, p_fontsizes);
	433
	434	if (path != wxEmptyString)
	435	cfg->SetPath(oldpath);
	436	}
	437
	438
	439
	440	void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
	441	{
	442	wxString oldpath;
	443	wxString tmp;
	444
	445	if (path != wxEmptyString)
	446	{
	447	oldpath = cfg->GetPath();
	448	cfg->SetPath(path);
	449	}
	450
	451	cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
	452	cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
	453	cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
	454	for (int i = 0; i < 7; i++)
	455	{
	456	tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
	457	cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
	458	}
	459
	460	if (path != wxEmptyString)
	461	cfg->SetPath(oldpath);
	462	}
	463
	464
	465
	466	bool wxHtmlWindow::HistoryBack()
	467	{
	468	wxString a, l;
	469
	470	if (m_HistoryPos < 1) return FALSE;
	471
	472	// store scroll position into history item:
	473	int x, y;
	474	GetViewStart(&x, &y);
	475	(*m_History)[m_HistoryPos].SetPos(y);
	476
	477	// go to previous position:
	478	m_HistoryPos--;
	479
	480	l = (*m_History)[m_HistoryPos].GetPage();
	481	a = (*m_History)[m_HistoryPos].GetAnchor();
	482	m_HistoryOn = FALSE;
	483	m_tmpCanDrawLocks++;
	484	if (a == wxEmptyString) LoadPage(l);
	485	else LoadPage(l + wxT("#") + a);
	486	m_HistoryOn = TRUE;
	487	wxYield();
	488	m_tmpCanDrawLocks--;
	489	Scroll(0, (*m_History)[m_HistoryPos].GetPos());
	490	Refresh();
	491	return TRUE;
	492	}
	493
	494	bool wxHtmlWindow::HistoryCanBack()
	495	{
	496	if (m_HistoryPos < 1) return FALSE;
	497	return TRUE ;
	498	}
	499
	500
	501	bool wxHtmlWindow::HistoryForward()
	502	{
	503	wxString a, l;
	504
	505	if (m_HistoryPos == -1) return FALSE;
	506	if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
	507
	508	m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
	509
	510	m_HistoryPos++;
	511	l = (*m_History)[m_HistoryPos].GetPage();
	512	a = (*m_History)[m_HistoryPos].GetAnchor();
	513	m_HistoryOn = FALSE;
	514	m_tmpCanDrawLocks++;
	515	if (a == wxEmptyString) LoadPage(l);
	516	else LoadPage(l + wxT("#") + a);
	517	m_HistoryOn = TRUE;
	518	wxYield();
	519	m_tmpCanDrawLocks--;
	520	Scroll(0, (*m_History)[m_HistoryPos].GetPos());
	521	Refresh();
	522	return TRUE;
	523	}
	524
	525	bool wxHtmlWindow::HistoryCanForward()
	526	{
	527	if (m_HistoryPos == -1) return FALSE;
	528	if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
	529	return TRUE ;
	530	}
	531
	532
	533	void wxHtmlWindow::HistoryClear()
	534	{
	535	m_History->Empty();
	536	m_HistoryPos = -1;
	537	}
	538
	539	void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
	540	{
	541	if (!m_Processors)
	542	{
	543	m_Processors = new wxHtmlProcessorList;
	544	m_Processors->DeleteContents(TRUE);
	545	}
	546	wxHtmlProcessorList::Node *node;
	547
	548	for (node = m_Processors->GetFirst(); node; node = node->GetNext())
	549	{
	550	if (processor->GetPriority() > node->GetData()->GetPriority())
	551	{
	552	m_Processors->Insert(node, processor);
	553	return;
	554	}
	555	}
	556	m_Processors->Append(processor);
	557	}
	558
	559	/static / void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
	560	{
	561	if (!m_GlobalProcessors)
	562	{
	563	m_GlobalProcessors = new wxHtmlProcessorList;
	564	m_GlobalProcessors->DeleteContents(TRUE);
	565	}
	566	wxHtmlProcessorList::Node *node;
	567
	568	for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
	569	{
	570	if (processor->GetPriority() > node->GetData()->GetPriority())
	571	{
	572	m_GlobalProcessors->Insert(node, processor);
	573	return;
	574	}
	575	}
	576	m_GlobalProcessors->Append(processor);
	577	}
	578
	579
	580
	581	wxList wxHtmlWindow::m_Filters;
	582	wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
	583	wxCursor *wxHtmlWindow::s_cur_hand = NULL;
	584	wxCursor *wxHtmlWindow::s_cur_arrow = NULL;
	585	wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
	586
	587	void wxHtmlWindow::CleanUpStatics()
	588	{
	589	delete m_DefaultFilter;
	590	m_DefaultFilter = NULL;
	591	m_Filters.DeleteContents(TRUE);
	592	m_Filters.Clear();
	593	delete m_GlobalProcessors;
	594	m_GlobalProcessors = NULL;
	595	delete s_cur_hand;
	596	delete s_cur_arrow;
	597	}
	598
	599
	600
	601	void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
	602	{
	603	m_Filters.Append(filter);
	604	}
	605
	606
	607
	608
	609	void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
	610	{
	611	LoadPage(link.GetHref());
	612	}
	613
	614	void wxHtmlWindow::OnCellClicked(wxHtmlCell *cell,
	615	wxCoord x, wxCoord y,
	616	const wxMouseEvent& event)
	617	{
	618	wxCHECK_RET( cell, _T("can't be called with NULL cell") );
	619
	620	cell->OnMouseClick(this, x, y, event);
	621	}
	622
	623	void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
	624	wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
	625	{
	626	// do nothing here
	627	}
	628
	629	void wxHtmlWindow::OnDraw(wxDC& dc)
	630	{
	631	int x, y;
	632	wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
	633	int v_y, v_h;
	634
	635	if (m_tmpCanDrawLocks > 0) return;
	636
	637	dc.SetMapMode(wxMM_TEXT);
	638	dc.SetBackgroundMode(wxTRANSPARENT);
	639	GetViewStart(&x, &y);
	640
	641	while (upd)
	642	{
	643	v_y = upd.GetY();
	644	v_h = upd.GetH();
	645	if (m_Cell) m_Cell->Draw(dc, 0, 0, y * wxHTML_SCROLL_STEP + v_y, y * wxHTML_SCROLL_STEP + v_h + v_y);
	646	upd++;
	647	}
	648	}
	649
	650
	651
	652
	653	void wxHtmlWindow::OnSize(wxSizeEvent& event)
	654	{
	655	wxScrolledWindow::OnSize(event);
	656	CreateLayout();
	657	Refresh();
	658	}
	659
	660
	661	void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event)
	662	{
	663	m_tmpMouseMoved = TRUE;
	664
	665	if (event.ButtonDown())
	666	{
	667	if ( m_Cell )
	668	{
	669	int sx, sy;
	670	GetViewStart(&sx, &sy);
	671	sx *= wxHTML_SCROLL_STEP;
	672	sy *= wxHTML_SCROLL_STEP;
	673
	674	wxPoint pos = event.GetPosition();
	675	pos.x += sx;
	676	pos.y += sy;
	677
	678	wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
	679
	680	// VZ: is it possible that we don't find anything at all?
	681	// VS: yes. FindCellByPos returns terminal cell and
	682	// containers may have empty borders
	683	if ( cell )
	684	OnCellClicked(cell, pos.x, pos.y, event);
	685	}
	686	}
	687	}
	688
	689
	690
	691	void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
	692	{
	693	if (s_cur_hand == NULL)
	694	{
	695	s_cur_hand = new wxCursor(wxCURSOR_HAND);
	696	s_cur_arrow = new wxCursor(wxCURSOR_ARROW);
	697	}
	698
	699	if (m_tmpMouseMoved && (m_Cell != NULL))
	700	{
	701	int sx, sy;
	702	GetViewStart(&sx, &sy);
	703	sx *= wxHTML_SCROLL_STEP;
	704	sy *= wxHTML_SCROLL_STEP;
	705
	706	int x, y;
	707	wxGetMousePosition(&x, &y);
	708	ScreenToClient(&x, &y);
	709	x += sx;
	710	y += sy;
	711
	712	wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
	713	if ( cell != m_tmpLastCell )
	714	{
	715	wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL;
	716
	717	if (lnk != m_tmpLastLink)
	718	{
	719	if (lnk == NULL)
	720	{
	721	SetCursor(*s_cur_arrow);
	722	if (m_RelatedStatusBar != -1)
	723	m_RelatedFrame->SetStatusText(wxEmptyString, m_RelatedStatusBar);
	724	}
	725	else
	726	{
	727	SetCursor(*s_cur_hand);
	728	if (m_RelatedStatusBar != -1)
	729	m_RelatedFrame->SetStatusText(lnk->GetHref(), m_RelatedStatusBar);
	730	}
	731	m_tmpLastLink = lnk;
	732	}
	733
	734	m_tmpLastCell = cell;
	735	}
	736	else // mouse moved but stayed in the same cell
	737	{
	738	if ( cell )
	739	OnCellMouseHover(cell, x, y);
	740	}
	741
	742	m_tmpMouseMoved = FALSE;
	743	}
	744	}
	745
	746
	747	IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
	748
	749	IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
	750
	751	BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
	752	EVT_SIZE(wxHtmlWindow::OnSize)
	753	EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent)
	754	EVT_RIGHT_DOWN(wxHtmlWindow::OnMouseEvent)
	755	EVT_MOTION(wxHtmlWindow::OnMouseEvent)
	756	EVT_IDLE(wxHtmlWindow::OnIdle)
	757	END_EVENT_TABLE()
	758
	759
	760
	761
	762
	763	// A module to allow initialization/cleanup
	764	// without calling these functions from app.cpp or from
	765	// the user's application.
	766
	767	class wxHtmlWinModule: public wxModule
	768	{
	769	DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
	770	public:
	771	wxHtmlWinModule() : wxModule() {}
	772	bool OnInit() { return TRUE; }
	773	void OnExit() { wxHtmlWindow::CleanUpStatics(); }
	774	};
	775
	776	IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
	777
	778
	779	// This hack forces the linker to always link in m_* files
	780	// (wxHTML doesn't work without handlers from these files)
	781	#include "wx/html/forcelnk.h"
	782	FORCE_WXHTML_MODULES()
	783
	784	#endif