3f66f6a5b3
This keyword is not expanded by Git which means it's not replaced with the correct revision value in the releases made using git-based scripts and it's confusing to have lines with unexpanded "$Id$" in the released files. As expanding them with Git is not that simple (it could be done with git archive and export-subst attribute) and there are not many benefits in having them in the first place, just remove all these lines. If nothing else, this will make an eventual transition to Git simpler. Closes #14487. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74602 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
206 lines
5.2 KiB
C++
206 lines
5.2 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/html/htmlfilt.cpp
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// Purpose: wxHtmlFilter - input filter for translating into HTML format
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// Author: Vaclav Slavik
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// Copyright: (c) 1999 Vaclav Slavik
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#if wxUSE_HTML && wxUSE_STREAMS
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#ifndef WX_PRECOMP
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#include "wx/log.h"
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#include "wx/intl.h"
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#endif
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#include "wx/strconv.h"
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#include "wx/sstream.h"
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#include "wx/html/htmlfilt.h"
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#include "wx/html/htmlwin.h"
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// utility function: read entire contents of an wxInputStream into a wxString
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//
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// TODO: error handling?
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static void ReadString(wxString& str, wxInputStream* s, wxMBConv& conv)
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{
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wxStringOutputStream out(&str, conv);
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s->Read(out);
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}
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/*
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There is code for several default filters:
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*/
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IMPLEMENT_ABSTRACT_CLASS(wxHtmlFilter, wxObject)
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//--------------------------------------------------------------------------------
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// wxHtmlFilterPlainText
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// filter for text/plain or uknown
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//--------------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxHtmlFilterPlainText, wxHtmlFilter)
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bool wxHtmlFilterPlainText::CanRead(const wxFSFile& WXUNUSED(file)) const
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{
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return true;
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}
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wxString wxHtmlFilterPlainText::ReadFile(const wxFSFile& file) const
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{
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wxInputStream *s = file.GetStream();
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wxString doc, doc2;
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if (s == NULL) return wxEmptyString;
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ReadString(doc, s, wxConvISO8859_1);
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doc.Replace(wxT("&"), wxT("&"), true);
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doc.Replace(wxT("<"), wxT("<"), true);
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doc.Replace(wxT(">"), wxT(">"), true);
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doc2 = wxT("<HTML><BODY><PRE>\n") + doc + wxT("\n</PRE></BODY></HTML>");
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return doc2;
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}
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//--------------------------------------------------------------------------------
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// wxHtmlFilterImage
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// filter for image/*
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//--------------------------------------------------------------------------------
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class wxHtmlFilterImage : public wxHtmlFilter
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{
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DECLARE_DYNAMIC_CLASS(wxHtmlFilterImage)
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public:
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virtual bool CanRead(const wxFSFile& file) const;
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virtual wxString ReadFile(const wxFSFile& file) const;
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};
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IMPLEMENT_DYNAMIC_CLASS(wxHtmlFilterImage, wxHtmlFilter)
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bool wxHtmlFilterImage::CanRead(const wxFSFile& file) const
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{
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return (file.GetMimeType().Left(6) == wxT("image/"));
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}
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wxString wxHtmlFilterImage::ReadFile(const wxFSFile& file) const
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{
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wxString res = wxT("<HTML><BODY><IMG SRC=\"") + file.GetLocation() + wxT("\"></BODY></HTML>");
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return res;
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}
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//--------------------------------------------------------------------------------
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// wxHtmlFilterHTML
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// filter for text/html
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//--------------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxHtmlFilterHTML, wxHtmlFilter)
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bool wxHtmlFilterHTML::CanRead(const wxFSFile& file) const
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{
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// return (file.GetMimeType() == "text/html");
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// This is true in most case but some page can return:
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// "text/html; char-encoding=...."
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// So we use Find instead
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return (file.GetMimeType().Find(wxT("text/html")) == 0);
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}
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wxString wxHtmlFilterHTML::ReadFile(const wxFSFile& file) const
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{
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wxInputStream *s = file.GetStream();
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wxString doc;
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if (s == NULL)
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{
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wxLogError(_("Cannot open HTML document: %s"), file.GetLocation().c_str());
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return wxEmptyString;
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}
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// NB: We convert input file to wchar_t here in Unicode mode, based on
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// either Content-Type header or <meta> tags. In ANSI mode, we don't
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// do it as it is done by wxHtmlParser (for this reason, we add <meta>
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// tag if we used Content-Type header).
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#if wxUSE_UNICODE
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int charsetPos;
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if ((charsetPos = file.GetMimeType().Find(wxT("; charset="))) != wxNOT_FOUND)
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{
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wxString charset = file.GetMimeType().Mid(charsetPos + 10);
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wxCSConv conv(charset);
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ReadString(doc, s, conv);
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}
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else
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{
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size_t size = s->GetSize();
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wxCharBuffer buf( size );
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s->Read( buf.data(), size );
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wxString tmpdoc( buf, wxConvISO8859_1);
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wxString charset = wxHtmlParser::ExtractCharsetInformation(tmpdoc);
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if (charset.empty())
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doc = tmpdoc;
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else
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{
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wxCSConv conv(charset);
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doc = wxString( buf, conv );
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}
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}
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#else // !wxUSE_UNICODE
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ReadString(doc, s, wxConvLibc);
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// add meta tag if we obtained this through http:
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if (!file.GetMimeType().empty())
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{
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wxString hdr;
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wxString mime = file.GetMimeType();
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hdr.Printf(wxT("<meta http-equiv=\"Content-Type\" content=\"%s\">"), mime.c_str());
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return hdr+doc;
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}
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#endif
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return doc;
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}
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///// Module:
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class wxHtmlFilterModule : public wxModule
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{
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DECLARE_DYNAMIC_CLASS(wxHtmlFilterModule)
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public:
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virtual bool OnInit()
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{
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wxHtmlWindow::AddFilter(new wxHtmlFilterHTML);
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wxHtmlWindow::AddFilter(new wxHtmlFilterImage);
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return true;
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}
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virtual void OnExit() {}
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};
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IMPLEMENT_DYNAMIC_CLASS(wxHtmlFilterModule, wxModule)
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#endif
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