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
#endif

#include "wx/wxprec.h"

#include "wx/defs.h"
#if wxUSE_HTML && wxUSE_STREAMS

#ifdef __BORDLANDC__
#pragma hdrstop
#endif

#ifndef WXPRECOMP
#include "wx/wx.h"
#endif

#include "wx/html/htmlwin.h"
#include "wx/html/forcelnk.h"
#include "wx/log.h"


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


#include "wx/arrimpl.cpp"
WX_DEFINE_OBJARRAY(HtmlHistoryArray)


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_tmpCanDrawLocks = 0;
    m_FS = new wxFileSystem();
    m_RelatedStatusBar = -1;
    m_RelatedFrame = NULL;
    m_TitleFormat = "%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_Style = style;
    SetPage(wxT("<html><body></body></html>"));
}


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

    if (m_Cell) delete m_Cell;

    delete m_Parser;
    delete m_FS;
}


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);
    SetPage(wxT("<html><body></body></html>")); // fonts changed => contents invalid
    if (!op.IsEmpty()) LoadPage(op);
}


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;
    m_Parser->SetDC(dc);
    if (m_Cell)
    {
        delete m_Cell;
        m_Cell = NULL;
    }
    m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(source);
    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;
        ViewStart(&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)
	    {
            wxString err;

            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);

        m_HistoryPos++;
        for (int i = 0; i < c; i++)
            m_History.Remove(m_HistoryPos);
        m_History.Add(new HtmlHistoryItem(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("wxHtmlWindow/Borders", m_Borders);
    p_fff = cfg->Read("wxHtmlWindow/FontFaceFixed", m_Parser->m_FontFaceFixed);
    p_ffn = cfg->Read("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("wxHtmlWindow/Borders", (long) m_Borders);
    cfg->Write("wxHtmlWindow/FontFaceFixed", m_Parser->m_FontFaceFixed);
    cfg->Write("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;
    ViewStart(&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;
}


wxList wxHtmlWindow::m_Filters;
wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
wxCursor *wxHtmlWindow::s_cur_hand = NULL;
wxCursor *wxHtmlWindow::s_cur_arrow = NULL;

void wxHtmlWindow::CleanUpStatics()
{
    if (m_DefaultFilter) delete m_DefaultFilter;
    m_DefaultFilter = NULL;
    m_Filters.DeleteContents(TRUE);
    m_Filters.Clear();
    if (s_cur_hand) delete s_cur_hand;
    if (s_cur_arrow) delete s_cur_arrow;
}


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


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


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);
#if 0
/* VS - I don't think this is neccessary any longer
        MSC_VER 1200 means MSVC 6.0 and it works fine */
#if defined(_MSC_VER) && (_MSC_VER == 1200)
    ::SetMapMode((HDC)dc.GetHDC(), MM_TEXT);
#endif
#endif
    dc.SetBackgroundMode(wxTRANSPARENT);
    ViewStart(&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())
    {
        int sx, sy;
        wxPoint pos;
        wxString lnk;

        ViewStart(&sx, &sy); sx *= wxHTML_SCROLL_STEP; sy *= wxHTML_SCROLL_STEP;
        pos = event.GetPosition();

        if (m_Cell)
            m_Cell->OnMouseClick(this, sx + pos.x, sy + pos.y, event);
    }
}


void wxHtmlWindow::OnIdle(wxIdleEvent& 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;
        int x, y;
        wxHtmlLinkInfo *lnk;

        ViewStart(&sx, &sy); sx *= wxHTML_SCROLL_STEP; sy *= wxHTML_SCROLL_STEP;
        wxGetMousePosition(&x, &y);
        ScreenToClient(&x, &y);
        lnk = m_Cell->GetLink(sx + x, sy + y);

        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_tmpMouseMoved = FALSE;
    }
}


IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)

BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
    EVT_SIZE(wxHtmlWindow::OnSize)
    EVT_LEFT_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)


///// default mod handlers are forced there:

FORCE_LINK(m_layout)
FORCE_LINK(m_fonts)
FORCE_LINK(m_image)
FORCE_LINK(m_list)
FORCE_LINK(m_dflist)
FORCE_LINK(m_pre)
FORCE_LINK(m_hline)
FORCE_LINK(m_links)
FORCE_LINK(m_tables)
FORCE_LINK(m_meta)


#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
	13	#endif
	14
	15	#include "wx/wxprec.h"
	16
	17	#include "wx/defs.h"
	18	#if wxUSE_HTML && wxUSE_STREAMS
	19
	20	#ifdef __BORDLANDC__
	21	#pragma hdrstop
	22	#endif
	23
	24	#ifndef WXPRECOMP
	25	#include "wx/wx.h"
	26	#endif
	27
	28	#include "wx/html/htmlwin.h"
	29	#include "wx/html/forcelnk.h"
	30	#include "wx/log.h"
	31
	32
	33	//-----------------------------------------------------------------------------
	34	// wxHtmlWindow
	35	//-----------------------------------------------------------------------------
	36
	37
	38
	39	#include "wx/arrimpl.cpp"
	40	WX_DEFINE_OBJARRAY(HtmlHistoryArray)
	41
	42
	43	wxHtmlWindow::wxHtmlWindow(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size,
	44	long style, const wxString& name) : wxScrolledWindow(parent, id, pos, size, style \| wxVSCROLL \| wxHSCROLL, name)
	45	{
	46	m_tmpMouseMoved = FALSE;
	47	m_tmpLastLink = NULL;
	48	m_tmpCanDrawLocks = 0;
	49	m_FS = new wxFileSystem();
	50	m_RelatedStatusBar = -1;
	51	m_RelatedFrame = NULL;
	52	m_TitleFormat = "%s";
	53	m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
	54	m_Cell = NULL;
	55	m_Parser = new wxHtmlWinParser(this);
	56	m_Parser->SetFS(m_FS);
	57	SetBorders(10);
	58	m_HistoryPos = -1;
	59	m_HistoryOn = TRUE;
	60	m_Style = style;
	61	SetPage(wxT("<html><body></body></html>"));
	62	}
	63
	64
	65
	66	wxHtmlWindow::~wxHtmlWindow()
	67	{
	68	HistoryClear();
	69
	70	if (m_Cell) delete m_Cell;
	71
	72	delete m_Parser;
	73	delete m_FS;
	74	}
	75
	76
	77
	78	void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
	79	{
	80	m_RelatedFrame = frame;
	81	m_TitleFormat = format;
	82	}
	83
	84
	85
	86	void wxHtmlWindow::SetRelatedStatusBar(int bar)
	87	{
	88	m_RelatedStatusBar = bar;
	89	}
	90
	91
	92
	93	void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes)
	94	{
	95	wxString op = m_OpenedPage;
	96
	97	m_Parser->SetFonts(normal_face, fixed_face, sizes);
	98	SetPage(wxT("<html><body></body></html>")); // fonts changed => contents invalid
	99	if (!op.IsEmpty()) LoadPage(op);
	100	}
	101
	102
	103
	104	bool wxHtmlWindow::SetPage(const wxString& source)
	105	{
	106	wxClientDC *dc = new wxClientDC(this);
	107
	108	dc->SetMapMode(wxMM_TEXT);
	109	SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
	110	m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
	111	m_Parser->SetDC(dc);
	112	if (m_Cell)
	113	{
	114	delete m_Cell;
	115	m_Cell = NULL;
	116	}
	117	m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(source);
	118	delete dc;
	119	m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
	120	m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
	121	CreateLayout();
	122	if (m_tmpCanDrawLocks == 0) Refresh();
	123	return TRUE;
	124	}
	125
	126
	127	bool wxHtmlWindow::LoadPage(const wxString& location)
	128	{
	129	wxFSFile *f;
	130	bool rt_val;
	131	bool needs_refresh = FALSE;
	132
	133	SetCursor(*wxHOURGLASS_CURSOR);
	134	wxYield(); Refresh(FALSE);
	135
	136	m_tmpCanDrawLocks++;
	137	if (m_HistoryOn && (m_HistoryPos != -1)) // store scroll position into history item
	138	{
	139	int x, y;
	140	ViewStart(&x, &y);
	141	m_History[m_HistoryPos].SetPos(y);
	142	}
	143
	144	if (location[0] == wxT('#')) // local anchor
	145	{
	146	wxString anch = location.Mid(1) /1 to end/;
	147	m_tmpCanDrawLocks--;
	148	rt_val = ScrollToAnchor(anch);
	149	m_tmpCanDrawLocks++;
	150	}
	151	else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
	152	{
	153	wxString anch = location.AfterFirst(wxT('#'));
	154	m_tmpCanDrawLocks--;
	155	rt_val = ScrollToAnchor(anch);
	156	m_tmpCanDrawLocks++;
	157	}
	158	else if (location.Find(wxT('#')) != wxNOT_FOUND &&
	159	(m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
	160	{
	161	wxString anch = location.AfterFirst(wxT('#'));
	162	m_tmpCanDrawLocks--;
	163	rt_val = ScrollToAnchor(anch);
	164	m_tmpCanDrawLocks++;
	165	}
	166
	167	else
	168	{
	169	needs_refresh = TRUE;
	170	// load&display it:
	171	if (m_RelatedStatusBar != -1)
	172	{
	173	m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
	174	Refresh(FALSE);
	175	}
	176
	177	f = m_FS->OpenFile(location);
	178
	179	if (f == NULL)
	180	{
	181	wxString err;
	182
	183	wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
	184	m_tmpCanDrawLocks--;
	185
	186	SetCursor(*wxSTANDARD_CURSOR);
	187	return FALSE;
	188	}
	189
	190	else
	191	{
	192	wxNode *node;
	193	wxString src = wxEmptyString;
	194
	195	if (m_RelatedStatusBar != -1)
	196	{
	197	wxString msg = _("Loading : ") + location;
	198	m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
	199	Refresh(FALSE);
	200	}
	201
	202	node = m_Filters.GetFirst();
	203	while (node)
	204	{
	205	wxHtmlFilter h = (wxHtmlFilter) node->GetData();
	206	if (h->CanRead(*f))
	207	{
	208	src = h->ReadFile(*f);
	209	break;
	210	}
	211	node = node->GetNext();
	212	}
	213	if (src == wxEmptyString)
	214	{
	215	if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
	216	src = m_DefaultFilter->ReadFile(*f);
	217	}
	218
	219	m_FS->ChangePathTo(f->GetLocation());
	220	rt_val = SetPage(src);
	221	m_OpenedPage = f->GetLocation();
	222	if (f->GetAnchor() != wxEmptyString)
	223	{
	224	wxYield();
	225	ScrollToAnchor(f->GetAnchor());
	226	}
	227
	228	delete f;
	229
	230	if (m_RelatedStatusBar != -1) m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
	231	}
	232	}
	233
	234	if (m_HistoryOn) // add this page to history there:
	235	{
	236	int c = m_History.GetCount() - (m_HistoryPos + 1);
	237
	238	m_HistoryPos++;
	239	for (int i = 0; i < c; i++)
	240	m_History.Remove(m_HistoryPos);
	241	m_History.Add(new HtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
	242	}
	243
	244	if (m_OpenedPageTitle == wxEmptyString)
	245	OnSetTitle(wxFileNameFromPath(m_OpenedPage));
	246	SetCursor(*wxSTANDARD_CURSOR);
	247
	248	if (needs_refresh)
	249	{
	250	wxYield();
	251	m_tmpCanDrawLocks--;
	252	Refresh();
	253	}
	254	else
	255	m_tmpCanDrawLocks--;
	256
	257	return rt_val;
	258	}
	259
	260
	261
	262	bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
	263	{
	264	const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
	265	if (!c)
	266	{
	267	wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
	268	return FALSE;
	269	}
	270	else
	271	{
	272	int y;
	273
	274	for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
	275	Scroll(-1, y / wxHTML_SCROLL_STEP);
	276	m_OpenedAnchor = anchor;
	277	return TRUE;
	278	}
	279	}
	280
	281
	282	void wxHtmlWindow::OnSetTitle(const wxString& title)
	283	{
	284	if (m_RelatedFrame)
	285	{
	286	wxString tit;
	287	tit.Printf(m_TitleFormat, title.c_str());
	288	m_RelatedFrame->SetTitle(tit);
	289	}
	290	m_OpenedPageTitle = title;
	291	}
	292
	293
	294
	295
	296
	297	void wxHtmlWindow::CreateLayout()
	298	{
	299	int ClientWidth, ClientHeight;
	300
	301	if (!m_Cell) return;
	302
	303	if (m_Style & wxHW_SCROLLBAR_NEVER)
	304	{
	305	SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
	306	GetClientSize(&ClientWidth, &ClientHeight);
	307	m_Cell->Layout(ClientWidth);
	308	}
	309
	310	else {
	311	GetClientSize(&ClientWidth, &ClientHeight);
	312	m_Cell->Layout(ClientWidth);
	313	if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
	314	{
	315	SetScrollbars(
	316	wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
	317	m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
	318	(m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
	319	/cheat: top-level frag is always container/);
	320	}
	321	else /* we fit into window, no need for scrollbars */
	322	{
	323	SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
	324	GetClientSize(&ClientWidth, &ClientHeight);
	325	m_Cell->Layout(ClientWidth); // ...and relayout
	326	}
	327	}
	328	}
	329
	330
	331
	332	void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
	333	{
	334	wxString oldpath;
	335	wxString tmp;
	336	int p_fontsizes[7];
	337	wxString p_fff, p_ffn;
	338
	339	if (path != wxEmptyString)
	340	{
	341	oldpath = cfg->GetPath();
	342	cfg->SetPath(path);
	343	}
	344
	345	m_Borders = cfg->Read("wxHtmlWindow/Borders", m_Borders);
	346	p_fff = cfg->Read("wxHtmlWindow/FontFaceFixed", m_Parser->m_FontFaceFixed);
	347	p_ffn = cfg->Read("wxHtmlWindow/FontFaceNormal", m_Parser->m_FontFaceNormal);
	348	for (int i = 0; i < 7; i++)
	349	{
	350	tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
	351	p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
	352	}
	353	SetFonts(p_ffn, p_fff, p_fontsizes);
	354
	355	if (path != wxEmptyString)
	356	cfg->SetPath(oldpath);
	357	}
	358
	359
	360
	361	void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
	362	{
	363	wxString oldpath;
	364	wxString tmp;
	365
	366	if (path != wxEmptyString)
	367	{
	368	oldpath = cfg->GetPath();
	369	cfg->SetPath(path);
	370	}
	371
	372	cfg->Write("wxHtmlWindow/Borders", (long) m_Borders);
	373	cfg->Write("wxHtmlWindow/FontFaceFixed", m_Parser->m_FontFaceFixed);
	374	cfg->Write("wxHtmlWindow/FontFaceNormal", m_Parser->m_FontFaceNormal);
	375	for (int i = 0; i < 7; i++)
	376	{
	377	tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
	378	cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
	379	}
	380
	381	if (path != wxEmptyString)
	382	cfg->SetPath(oldpath);
	383	}
	384
	385
	386
	387	bool wxHtmlWindow::HistoryBack()
	388	{
	389	wxString a, l;
	390
	391	if (m_HistoryPos < 1) return FALSE;
	392
	393	// store scroll position into history item:
	394	int x, y;
	395	ViewStart(&x, &y);
	396	m_History[m_HistoryPos].SetPos(y);
	397
	398	// go to previous position:
	399	m_HistoryPos--;
	400
	401	l = m_History[m_HistoryPos].GetPage();
	402	a = m_History[m_HistoryPos].GetAnchor();
	403	m_HistoryOn = FALSE;
	404	m_tmpCanDrawLocks++;
	405	if (a == wxEmptyString) LoadPage(l);
	406	else LoadPage(l + wxT("#") + a);
	407	m_HistoryOn = TRUE;
	408	wxYield();
	409	m_tmpCanDrawLocks--;
	410	Scroll(0, m_History[m_HistoryPos].GetPos());
	411	Refresh();
	412	return TRUE;
	413	}
	414
	415	bool wxHtmlWindow::HistoryCanBack()
	416	{
	417	if (m_HistoryPos < 1) return FALSE;
	418	return TRUE ;
	419	}
	420
	421
	422	bool wxHtmlWindow::HistoryForward()
	423	{
	424	wxString a, l;
	425
	426	if (m_HistoryPos == -1) return FALSE;
	427	if (m_HistoryPos >= (int)m_History.GetCount() - 1)return FALSE;
	428
	429	m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
	430
	431	m_HistoryPos++;
	432	l = m_History[m_HistoryPos].GetPage();
	433	a = m_History[m_HistoryPos].GetAnchor();
	434	m_HistoryOn = FALSE;
	435	m_tmpCanDrawLocks++;
	436	if (a == wxEmptyString) LoadPage(l);
	437	else LoadPage(l + wxT("#") + a);
	438	m_HistoryOn = TRUE;
	439	wxYield();
	440	m_tmpCanDrawLocks--;
	441	Scroll(0, m_History[m_HistoryPos].GetPos());
	442	Refresh();
	443	return TRUE;
	444	}
	445
	446	bool wxHtmlWindow::HistoryCanForward()
	447	{
	448	if (m_HistoryPos == -1) return FALSE;
	449	if (m_HistoryPos >= (int)m_History.GetCount() - 1)return FALSE;
	450	return TRUE ;
	451	}
	452
	453
	454	void wxHtmlWindow::HistoryClear()
	455	{
	456	m_History.Empty();
	457	m_HistoryPos = -1;
	458	}
	459
	460
	461
	462	wxList wxHtmlWindow::m_Filters;
	463	wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
	464	wxCursor *wxHtmlWindow::s_cur_hand = NULL;
	465	wxCursor *wxHtmlWindow::s_cur_arrow = NULL;
	466
	467	void wxHtmlWindow::CleanUpStatics()
	468	{
	469	if (m_DefaultFilter) delete m_DefaultFilter;
	470	m_DefaultFilter = NULL;
	471	m_Filters.DeleteContents(TRUE);
	472	m_Filters.Clear();
	473	if (s_cur_hand) delete s_cur_hand;
	474	if (s_cur_arrow) delete s_cur_arrow;
	475	}
	476
	477
	478
	479	void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
	480	{
	481	m_Filters.Append(filter);
	482	}
	483
	484
	485
	486
	487	void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
	488	{
	489	LoadPage(link.GetHref());
	490	}
	491
	492
	493
	494	void wxHtmlWindow::OnDraw(wxDC& dc)
	495	{
	496	int x, y;
	497	wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
	498	int v_y, v_h;
	499
	500	if (m_tmpCanDrawLocks > 0) return;
	501
	502	dc.SetMapMode(wxMM_TEXT);
	503	#if 0
	504	/* VS - I don't think this is neccessary any longer
	505	MSC_VER 1200 means MSVC 6.0 and it works fine */
	506	#if defined(_MSC_VER) && (_MSC_VER == 1200)
	507	::SetMapMode((HDC)dc.GetHDC(), MM_TEXT);
	508	#endif
	509	#endif
	510	dc.SetBackgroundMode(wxTRANSPARENT);
	511	ViewStart(&x, &y);
	512
	513	while (upd)
	514	{
	515	v_y = upd.GetY();
	516	v_h = upd.GetH();
	517	if (m_Cell) m_Cell->Draw(dc, 0, 0, y * wxHTML_SCROLL_STEP + v_y, y * wxHTML_SCROLL_STEP + v_h + v_y);
	518	upd++;
	519	}
	520	}
	521
	522
	523
	524
	525	void wxHtmlWindow::OnSize(wxSizeEvent& event)
	526	{
	527	wxScrolledWindow::OnSize(event);
	528	CreateLayout();
	529	Refresh();
	530	}
	531
	532
	533	void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event)
	534	{
	535	m_tmpMouseMoved = TRUE;
	536
	537	if (event.ButtonDown())
	538	{
	539	int sx, sy;
	540	wxPoint pos;
	541	wxString lnk;
	542
	543	ViewStart(&sx, &sy); sx = wxHTML_SCROLL_STEP; sy = wxHTML_SCROLL_STEP;
	544	pos = event.GetPosition();
	545
	546	if (m_Cell)
	547	m_Cell->OnMouseClick(this, sx + pos.x, sy + pos.y, event);
	548	}
	549	}
	550
	551
	552
	553	void wxHtmlWindow::OnIdle(wxIdleEvent& event)
	554	{
	555	if (s_cur_hand == NULL)
	556	{
	557	s_cur_hand = new wxCursor(wxCURSOR_HAND);
	558	s_cur_arrow = new wxCursor(wxCURSOR_ARROW);
	559	}
	560
	561	if (m_tmpMouseMoved && (m_Cell != NULL))
	562	{
	563	int sx, sy;
	564	int x, y;
	565	wxHtmlLinkInfo *lnk;
	566
	567	ViewStart(&sx, &sy); sx = wxHTML_SCROLL_STEP; sy = wxHTML_SCROLL_STEP;
	568	wxGetMousePosition(&x, &y);
	569	ScreenToClient(&x, &y);
	570	lnk = m_Cell->GetLink(sx + x, sy + y);
	571
	572	if (lnk != m_tmpLastLink)
	573	{
	574	if (lnk == NULL)
	575	{
	576	SetCursor(*s_cur_arrow);
	577	if (m_RelatedStatusBar != -1) m_RelatedFrame->SetStatusText(wxEmptyString, m_RelatedStatusBar);
	578	}
	579	else
	580	{
	581	SetCursor(*s_cur_hand);
	582	if (m_RelatedStatusBar != -1)
	583	m_RelatedFrame->SetStatusText(lnk->GetHref(), m_RelatedStatusBar);
	584	}
	585	m_tmpLastLink = lnk;
	586	}
	587	m_tmpMouseMoved = FALSE;
	588	}
	589	}
	590
	591
	592
	593
	594	IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
	595
	596	BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
	597	EVT_SIZE(wxHtmlWindow::OnSize)
	598	EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent)
	599	EVT_MOTION(wxHtmlWindow::OnMouseEvent)
	600	EVT_IDLE(wxHtmlWindow::OnIdle)
	601	END_EVENT_TABLE()
	602
	603
	604
	605
	606
	607	// A module to allow initialization/cleanup
	608	// without calling these functions from app.cpp or from
	609	// the user's application.
	610
	611	class wxHtmlWinModule: public wxModule
	612	{
	613	DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
	614	public:
	615	wxHtmlWinModule() : wxModule() {}
	616	bool OnInit() { return TRUE; }
	617	void OnExit() { wxHtmlWindow::CleanUpStatics(); }
	618	};
	619
	620	IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
	621
	622
	623
	624
	625	///// default mod handlers are forced there:
	626
	627	FORCE_LINK(m_layout)
	628	FORCE_LINK(m_fonts)
	629	FORCE_LINK(m_image)
	630	FORCE_LINK(m_list)
	631	FORCE_LINK(m_dflist)
	632	FORCE_LINK(m_pre)
	633	FORCE_LINK(m_hline)
	634	FORCE_LINK(m_links)
	635	FORCE_LINK(m_tables)
	636	FORCE_LINK(m_meta)
	637
	638
	639	#endif