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

#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, 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("<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.mb_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.mb_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;

    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::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;
}


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();
}


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
	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, 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("<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	delete m_Cell;
	114	m_Cell = NULL;
	115	}
	116	m_Cell = (wxHtmlContainerCell*) m_Parser -> Parse(source);
	117	delete dc;
	118	m_Cell -> SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
	119	m_Cell -> SetAlignHor(wxHTML_ALIGN_CENTER);
	120	CreateLayout();
	121	if (m_tmpCanDrawLocks == 0) Refresh();
	122	return TRUE;
	123	}
	124
	125
	126	bool wxHtmlWindow::LoadPage(const wxString& location)
	127	{
	128	wxFSFile *f;
	129	bool rt_val;
	130	bool needs_refresh = FALSE;
	131
	132	SetCursor(*wxHOURGLASS_CURSOR);
	133	wxYield(); Refresh(FALSE);
	134
	135	m_tmpCanDrawLocks++;
	136	if (m_HistoryOn && (m_HistoryPos != -1)) { // store scroll position into history item
	137	int x, y;
	138	ViewStart(&x, &y);
	139	m_History[m_HistoryPos].SetPos(y);
	140	}
	141
	142	if (location[0] == wxT('#')) { // local anchor
	143	wxString anch = location.Mid(1) /1 to end/;
	144	m_tmpCanDrawLocks--;
	145	rt_val = ScrollToAnchor(anch);
	146	m_tmpCanDrawLocks++;
	147	}
	148	else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage) {
	149	wxString anch = location.AfterFirst(wxT('#'));
	150	m_tmpCanDrawLocks--;
	151	rt_val = ScrollToAnchor(anch);
	152	m_tmpCanDrawLocks++;
	153	}
	154	else if (location.Find(wxT('#')) != wxNOT_FOUND &&
	155	(m_FS -> GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage) {
	156	wxString anch = location.AfterFirst(wxT('#'));
	157	m_tmpCanDrawLocks--;
	158	rt_val = ScrollToAnchor(anch);
	159	m_tmpCanDrawLocks++;
	160	}
	161
	162	else {
	163	needs_refresh = TRUE;
	164	// load&display it:
	165	if (m_RelatedStatusBar != -1) {
	166	m_RelatedFrame -> SetStatusText(_("Connecting..."), m_RelatedStatusBar);
	167	Refresh(FALSE);
	168	}
	169
	170	f = m_FS -> OpenFile(location);
	171
	172	if (f == NULL) {
	173	wxString err;
	174
	175	wxLogError(_("Unable to open requested HTML document: %s"), location.mb_str());
	176	m_tmpCanDrawLocks--;
	177
	178	SetCursor(*wxSTANDARD_CURSOR);
	179	return FALSE;
	180	}
	181
	182	else {
	183	wxNode *node;
	184	wxString src = wxEmptyString;
	185
	186	if (m_RelatedStatusBar != -1) {
	187	wxString msg = _("Loading : ") + location;
	188	m_RelatedFrame -> SetStatusText(msg, m_RelatedStatusBar);
	189	Refresh(FALSE);
	190	}
	191
	192	node = m_Filters.GetFirst();
	193	while (node){
	194	wxHtmlFilter h = (wxHtmlFilter) node -> GetData();
	195	if (h -> CanRead(*f)) {
	196	src = h -> ReadFile(*f);
	197	break;
	198	}
	199	node = node -> GetNext();
	200	}
	201	if (src == wxEmptyString) {
	202	if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
	203	src = m_DefaultFilter -> ReadFile(*f);
	204	}
	205
	206	m_FS -> ChangePathTo(f -> GetLocation());
	207	rt_val = SetPage(src);
	208	m_OpenedPage = f -> GetLocation();
	209	if (f -> GetAnchor() != wxEmptyString) {
	210	wxYield();
	211	ScrollToAnchor(f -> GetAnchor());
	212	}
	213
	214	delete f;
	215
	216	if (m_RelatedStatusBar != -1) m_RelatedFrame -> SetStatusText(_("Done"), m_RelatedStatusBar);
	217	}
	218	}
	219
	220	if (m_HistoryOn) { // add this page to history there:
	221	int c = m_History.GetCount() - (m_HistoryPos + 1);
	222
	223	m_HistoryPos++;
	224	for (int i = 0; i < c; i++)
	225	m_History.Remove(m_HistoryPos);
	226	m_History.Add(new HtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
	227	}
	228
	229	if (m_OpenedPageTitle == wxEmptyString)
	230	OnSetTitle(wxFileNameFromPath(m_OpenedPage));
	231	SetCursor(*wxSTANDARD_CURSOR);
	232
	233	if (needs_refresh) {
	234	wxYield();
	235	m_tmpCanDrawLocks--;
	236	Refresh();
	237	}
	238	else
	239	m_tmpCanDrawLocks--;
	240
	241	return rt_val;
	242	}
	243
	244
	245
	246	bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
	247	{
	248	const wxHtmlCell *c = m_Cell -> Find(wxHTML_COND_ISANCHOR, &anchor);
	249	if (!c)
	250	{
	251	wxLogWarning(_("HTML anchor %s does not exist."), anchor.mb_str());
	252	return FALSE;
	253	}
	254	else {
	255	int y;
	256
	257	for (y = 0; c != NULL; c = c -> GetParent()) y += c -> GetPosY();
	258	Scroll(-1, y / wxHTML_SCROLL_STEP);
	259	m_OpenedAnchor = anchor;
	260	return TRUE;
	261	}
	262	}
	263
	264
	265	void wxHtmlWindow::OnSetTitle(const wxString& title)
	266	{
	267	if (m_RelatedFrame) {
	268	wxString tit;
	269	tit.Printf(m_TitleFormat, title.c_str());
	270	m_RelatedFrame -> SetTitle(tit);
	271	}
	272	m_OpenedPageTitle = title;
	273	}
	274
	275
	276
	277
	278
	279	void wxHtmlWindow::CreateLayout()
	280	{
	281	int ClientWidth, ClientHeight;
	282
	283	if (!m_Cell) return;
	284
	285	if (m_Style == wxHW_SCROLLBAR_NEVER) {
	286	SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell -> GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
	287	GetClientSize(&ClientWidth, &ClientHeight);
	288	m_Cell -> Layout(ClientWidth);
	289	}
	290
	291	else {
	292	GetClientSize(&ClientWidth, &ClientHeight);
	293	m_Cell -> Layout(ClientWidth);
	294	if (ClientHeight < m_Cell -> GetHeight() + GetCharHeight()) {
	295	SetScrollbars(
	296	wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
	297	m_Cell -> GetWidth() / wxHTML_SCROLL_STEP,
	298	(m_Cell -> GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
	299	/cheat: top-level frag is always container/);
	300	}
	301	else { /* we fit into window, no need for scrollbars */
	302	SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell -> GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
	303	GetClientSize(&ClientWidth, &ClientHeight);
	304	m_Cell -> Layout(ClientWidth); // ...and relayout
	305	}
	306	}
	307	}
	308
	309
	310
	311	void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
	312	{
	313	wxString oldpath;
	314	wxString tmp;
	315	int p_fontsizes[7];
	316	wxString p_fff, p_ffn;
	317
	318	if (path != wxEmptyString) {
	319	oldpath = cfg -> GetPath();
	320	cfg -> SetPath(path);
	321	}
	322
	323	m_Borders = cfg -> Read("wxHtmlWindow/Borders", m_Borders);
	324	p_fff = cfg -> Read("wxHtmlWindow/FontFaceFixed", m_Parser -> m_FontFaceFixed);
	325	p_ffn = cfg -> Read("wxHtmlWindow/FontFaceNormal", m_Parser -> m_FontFaceNormal);
	326	for (int i = 0; i < 7; i++) {
	327	tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
	328	p_fontsizes[i] = cfg -> Read(tmp, m_Parser -> m_FontsSizes[i]);
	329	}
	330	SetFonts(p_ffn, p_fff, p_fontsizes);
	331
	332	if (path != wxEmptyString)
	333	cfg -> SetPath(oldpath);
	334	}
	335
	336
	337
	338	void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
	339	{
	340	wxString oldpath;
	341	wxString tmp;
	342
	343	if (path != wxEmptyString) {
	344	oldpath = cfg -> GetPath();
	345	cfg -> SetPath(path);
	346	}
	347
	348	cfg -> Write("wxHtmlWindow/Borders", (long) m_Borders);
	349	cfg -> Write("wxHtmlWindow/FontFaceFixed", m_Parser -> m_FontFaceFixed);
	350	cfg -> Write("wxHtmlWindow/FontFaceNormal", m_Parser -> m_FontFaceNormal);
	351	for (int i = 0; i < 7; i++) {
	352	tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
	353	cfg -> Write(tmp, (long) m_Parser -> m_FontsSizes[i]);
	354	}
	355
	356	if (path != wxEmptyString)
	357	cfg -> SetPath(oldpath);
	358	}
	359
	360
	361
	362	bool wxHtmlWindow::HistoryBack()
	363	{
	364	wxString a, l;
	365
	366	if (m_HistoryPos < 1) return FALSE;
	367
	368	m_HistoryPos--;
	369
	370	l = m_History[m_HistoryPos].GetPage();
	371	a = m_History[m_HistoryPos].GetAnchor();
	372	m_HistoryOn = FALSE;
	373	m_tmpCanDrawLocks++;
	374	if (a == wxEmptyString) LoadPage(l);
	375	else LoadPage(l + wxT("#") + a);
	376	m_HistoryOn = TRUE;
	377	wxYield();
	378	m_tmpCanDrawLocks--;
	379	Scroll(0, m_History[m_HistoryPos].GetPos());
	380	Refresh();
	381	return TRUE;
	382	}
	383
	384
	385
	386	bool wxHtmlWindow::HistoryForward()
	387	{
	388	wxString a, l;
	389
	390	if (m_HistoryPos == -1) return FALSE;
	391	if (m_HistoryPos >= (int)m_History.GetCount() - 1)return FALSE;
	392
	393	m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
	394
	395	m_HistoryPos++;
	396	l = m_History[m_HistoryPos].GetPage();
	397	a = m_History[m_HistoryPos].GetAnchor();
	398	m_HistoryOn = FALSE;
	399	m_tmpCanDrawLocks++;
	400	if (a == wxEmptyString) LoadPage(l);
	401	else LoadPage(l + wxT("#") + a);
	402	m_HistoryOn = TRUE;
	403	wxYield();
	404	m_tmpCanDrawLocks--;
	405	Scroll(0, m_History[m_HistoryPos].GetPos());
	406	Refresh();
	407	return TRUE;
	408	}
	409
	410
	411
	412	void wxHtmlWindow::HistoryClear()
	413	{
	414	m_History.Empty();
	415	m_HistoryPos = -1;
	416	}
	417
	418
	419
	420	wxList wxHtmlWindow::m_Filters;
	421	wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
	422	wxCursor *wxHtmlWindow::s_cur_hand = NULL;
	423	wxCursor *wxHtmlWindow::s_cur_arrow = NULL;
	424
	425	void wxHtmlWindow::CleanUpStatics()
	426	{
	427	if (m_DefaultFilter) delete m_DefaultFilter;
	428	m_DefaultFilter = NULL;
	429	m_Filters.DeleteContents(TRUE);
	430	m_Filters.Clear();
	431	if (s_cur_hand) delete s_cur_hand;
	432	if (s_cur_arrow) delete s_cur_arrow;
	433	}
	434
	435
	436
	437	void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
	438	{
	439	m_Filters.Append(filter);
	440	}
	441
	442
	443
	444
	445	void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
	446	{
	447	LoadPage(link.GetHref());
	448	}
	449
	450
	451
	452	void wxHtmlWindow::OnDraw(wxDC& dc)
	453	{
	454	int x, y;
	455	wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
	456	int v_y, v_h;
	457
	458	if (m_tmpCanDrawLocks > 0) return;
	459
	460	dc.SetMapMode(wxMM_TEXT);
	461	#if 0
	462	/* VS - I don't think this is neccessary any longer
	463	MSC_VER 1200 means MSVC 6.0 and it works fine */
	464	#if defined(_MSC_VER) && (_MSC_VER == 1200)
	465	::SetMapMode((HDC)dc.GetHDC(), MM_TEXT);
	466	#endif
	467	#endif
	468	dc.SetBackgroundMode(wxTRANSPARENT);
	469	ViewStart(&x, &y);
	470
	471	while (upd) {
	472	v_y = upd.GetY();
	473	v_h = upd.GetH();
	474	if (m_Cell) m_Cell -> Draw(dc, 0, 0, y * wxHTML_SCROLL_STEP + v_y, y * wxHTML_SCROLL_STEP + v_h + v_y);
	475	upd++;
	476	}
	477	}
	478
	479
	480
	481
	482	void wxHtmlWindow::OnSize(wxSizeEvent& event)
	483	{
	484	wxScrolledWindow::OnSize(event);
	485	CreateLayout();
	486	}
	487
	488
	489	void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event)
	490	{
	491	m_tmpMouseMoved = TRUE;
	492
	493	if (event.ButtonDown()) {
	494	int sx, sy;
	495	wxPoint pos;
	496	wxString lnk;
	497
	498	ViewStart(&sx, &sy); sx = wxHTML_SCROLL_STEP; sy = wxHTML_SCROLL_STEP;
	499	pos = event.GetPosition();
	500
	501	if (m_Cell)
	502	m_Cell -> OnMouseClick(this, sx + pos.x, sy + pos.y, event);
	503	}
	504	}
	505
	506
	507
	508	void wxHtmlWindow::OnIdle(wxIdleEvent& event)
	509	{
	510	if (s_cur_hand == NULL)
	511	{
	512	s_cur_hand = new wxCursor(wxCURSOR_HAND);
	513	s_cur_arrow = new wxCursor(wxCURSOR_ARROW);
	514	}
	515
	516	if (m_tmpMouseMoved && (m_Cell != NULL)) {
	517	int sx, sy;
	518	int x, y;
	519	wxHtmlLinkInfo *lnk;
	520
	521	ViewStart(&sx, &sy); sx = wxHTML_SCROLL_STEP; sy = wxHTML_SCROLL_STEP;
	522	wxGetMousePosition(&x, &y);
	523	ScreenToClient(&x, &y);
	524	lnk = m_Cell -> GetLink(sx + x, sy + y);
	525
	526	if (lnk != m_tmpLastLink) {
	527	if (lnk == NULL) {
	528	SetCursor(*s_cur_arrow);
	529	if (m_RelatedStatusBar != -1) m_RelatedFrame -> SetStatusText(wxEmptyString, m_RelatedStatusBar);
	530	}
	531	else {
	532	SetCursor(*s_cur_hand);
	533	if (m_RelatedStatusBar != -1)
	534	m_RelatedFrame -> SetStatusText(lnk -> GetHref(), m_RelatedStatusBar);
	535	}
	536	m_tmpLastLink = lnk;
	537	}
	538	m_tmpMouseMoved = FALSE;
	539	}
	540	}
	541
	542
	543
	544
	545	IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
	546
	547	BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
	548	EVT_SIZE(wxHtmlWindow::OnSize)
	549	EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent)
	550	EVT_MOTION(wxHtmlWindow::OnMouseEvent)
	551	EVT_IDLE(wxHtmlWindow::OnIdle)
	552	END_EVENT_TABLE()
	553
	554
	555
	556
	557
	558	// A module to allow initialization/cleanup
	559	// without calling these functions from app.cpp or from
	560	// the user's application.
	561
	562	class wxHtmlWinModule: public wxModule
	563	{
	564	DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
	565	public:
	566	wxHtmlWinModule() : wxModule() {}
	567	bool OnInit() { return TRUE; }
	568	void OnExit() { wxHtmlWindow::CleanUpStatics(); }
	569	};
	570
	571	IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
	572
	573
	574
	575
	576	///// default mod handlers are forced there:
	577
	578	FORCE_LINK(m_layout)
	579	FORCE_LINK(m_fonts)
	580	FORCE_LINK(m_image)
	581	FORCE_LINK(m_list)
	582	FORCE_LINK(m_dflist)
	583	FORCE_LINK(m_pre)
	584	FORCE_LINK(m_hline)
	585	FORCE_LINK(m_links)
	586	FORCE_LINK(m_tables)
	587	FORCE_LINK(m_meta)
	588
	589
	590	#endif