f3c8285953
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5618 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
188 lines
4.3 KiB
C++
188 lines
4.3 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: 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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// RCS-ID: $Id$
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// Copyright: (c) 1999 Vaclav Slavik
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// Licence: wxWindows Licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation
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#endif
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#include "wx/wxprec.h"
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#include "wx/defs.h"
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#if wxUSE_HTML
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#ifdef __BORDLANDC__
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#pragma hdrstop
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#endif
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#ifndef WXPRECOMP
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#include "wx/wx.h"
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#endif
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#include "wx/html/htmlfilt.h"
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#include "wx/html/htmlwin.h"
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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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char *src;
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wxString doc, doc2;
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if (s == NULL) return wxEmptyString;
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src = new char[s -> GetSize()+1];
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src[s -> GetSize()] = 0;
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s -> Read(src, s -> GetSize());
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doc = src;
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delete [] src;
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doc.Replace(wxT("<"), wxT("<"), TRUE);
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doc.Replace(wxT(">"), wxT(">"), TRUE);
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doc2 = "<HTML><BODY><PRE>\n" + doc + "\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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return ("<HTML><BODY><IMG SRC=\"" + file.GetLocation() + "\"></BODY></HTML>");
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}
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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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class wxHtmlFilterHTML : public wxHtmlFilter
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{
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DECLARE_DYNAMIC_CLASS(wxHtmlFilterHTML)
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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(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(_("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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char *src;
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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().mb_str());
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return wxEmptyString;
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}
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src = new char[s -> GetSize() + 1];
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src[s -> GetSize()] = 0;
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s -> Read(src, s -> GetSize());
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doc = src;
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delete[] src;
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// add meta tag if we obtained this through http:
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if (file.GetMimeType().Find(_T("; charset=")) == 0)
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{
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wxString s(_T("<meta http-equiv=\"Content-Type\" content=\""));
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s << file.GetMimeType() << _T("\">");
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return s;
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}
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else 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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