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First checkin. Converts text/HTML selection to XIF format.
This commit is contained in:
mcafee%netscape.com
parent
7f01fe97cd
commit
a24018d3c2
338
widget/src/xpwidgets/nsXIFFormatConverter.cpp
Normal file
338
widget/src/xpwidgets/nsXIFFormatConverter.cpp
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@ -0,0 +1,338 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsXIFConverter.h"
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#include "nsIDataFlavor.h"
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#include "nsWidgetsCID.h"
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#include "nsISupportsArray.h"
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#include "nsRepository.h"
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// These are temporary
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#ifdef XP_UNIX
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#include <strstream.h>
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#endif
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#ifdef XP_PC
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#include <strstrea.h>
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#endif
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#ifdef XP_MAC
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#include <sstream>
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#include <string>
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#endif
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// XIF convertor stuff
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#include "nsIParser.h"
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#include "nsParserCIID.h"
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#include "nsHTMLContentSinkStream.h"
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#include "nsHTMLToTXTSinkStream.h"
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#include "nsXIFDTD.h"
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#include "nsIDataFlavor.h"
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#include "nsWidgetsCID.h"
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#include "nsXIFFormatConverter.h"
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static NS_DEFINE_IID(kIXIFFormatConverterIID, NS_IFORMATCONVERTER_IID);
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//static NS_DEFINE_IID(kCXIFConverterCID, NS_XIFCONVERTER_CID);
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static NS_DEFINE_IID(kCParserIID, NS_IPARSER_IID);
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static NS_DEFINE_IID(kCParserCID, NS_PARSER_IID);
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static NS_DEFINE_IID(kIDataFlavorIID, NS_IDATAFLAVOR_IID);
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static NS_DEFINE_IID(kCDataFlavorCID, NS_DATAFLAVOR_CID);
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NS_IMPL_ADDREF(nsXIFFormatConverter)
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NS_IMPL_RELEASE(nsXIFFormatConverter)
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//-------------------------------------------------------------------------
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//
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// XIFFormatConverter constructor
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//
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//-------------------------------------------------------------------------
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nsXIFFormatConverter::nsXIFFormatConverter()
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{
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NS_INIT_REFCNT();
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}
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//-------------------------------------------------------------------------
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//
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// XIFFormatConverter destructor
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//
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//-------------------------------------------------------------------------
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nsXIFFormatConverter::~nsXIFFormatConverter()
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{
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}
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/**
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* @param aIID The name of the class implementing the method
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* @param _classiiddef The name of the #define symbol that defines the IID
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* for the class (e.g. NS_ISUPPORTS_IID)
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*
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*/
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nsresult nsXIFFormatConverter::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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{
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if (NULL == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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}
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nsresult rv = NS_NOINTERFACE;
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if (aIID.Equals(kIXIFFormatConverterIID)) {
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*aInstancePtr = (void*) ((nsIFormatConverter*)this);
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NS_ADDREF_THIS();
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return NS_OK;
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}
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return rv;
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}
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static void AddFlavor(nsISupportsArray * aArray, const nsString & aMime, const nsString & aReadable)
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{
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nsIDataFlavor * flavor;
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nsresult rv = nsComponentManager::CreateInstance(kCDataFlavorCID, nsnull, kIDataFlavorIID, (void**) &flavor);
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if (NS_OK == rv) {
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flavor->Init(aMime, aReadable);
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if (nsnull != flavor) {
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aArray->AppendElement(flavor);
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}
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}
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}
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/**
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*
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*
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*/
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NS_IMETHODIMP nsXIFFormatConverter::GetInputDataFlavors(nsISupportsArray ** aDataFlavorList)
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{
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nsISupportsArray * array;
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nsresult rv = NS_NewISupportsArray(&array);
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if (NS_OK == rv) {
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AddFlavor(array, kXIFMime, "XIF");
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*aDataFlavorList = array;
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}
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return NS_OK;
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}
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/**
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*
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*
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*/
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NS_IMETHODIMP nsXIFFormatConverter::GetOutputDataFlavors(nsISupportsArray ** aDataFlavorList)
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{
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nsISupportsArray * array;
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nsresult rv = NS_NewISupportsArray(&array);
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if (NS_OK == rv) {
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AddFlavor(array, kXIFMime, "XIF");
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AddFlavor(array, kTextMime, "Text");
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AddFlavor(array, kAOLMailMime, "AOLMail");
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AddFlavor(array, kHTMLMime, "HTML");
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*aDataFlavorList = array;
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}
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return NS_OK;
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}
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/**
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*
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*
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*/
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NS_IMETHODIMP nsXIFFormatConverter::CanConvert(nsIDataFlavor * aFromDataFlavor, nsIDataFlavor * aToDataFlavor)
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{
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// This method currently only converts from XIF to the others
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nsAutoString fromMimeInQuestion;
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aFromDataFlavor->GetMimeType(fromMimeInQuestion);
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if (!fromMimeInQuestion.Equals(kXIFMime)) {
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return NS_ERROR_FAILURE;
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}
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nsAutoString toMimeInQuestion;
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aToDataFlavor->GetMimeType(toMimeInQuestion);
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if (toMimeInQuestion.Equals(kTextMime)) {
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return NS_OK;
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} else if (toMimeInQuestion.Equals(kHTMLMime)) {
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return NS_OK;
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} else if (toMimeInQuestion.Equals(kAOLMailMime)) {
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return NS_OK;
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}
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return NS_ERROR_FAILURE;
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}
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/**
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*
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*
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*/
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NS_IMETHODIMP nsXIFFormatConverter::Convert(nsIDataFlavor * aFromDataFlavor, void * aFromData, PRUint32 aDataLen,
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nsIDataFlavor * aToDataFlavor, void ** aToData, PRUint32 * aDataToLen)
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{
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// This method currently only converts from XIF to the others
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nsAutoString fromMimeInQuestion;
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aFromDataFlavor->GetMimeType(fromMimeInQuestion);
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if (!fromMimeInQuestion.Equals(kXIFMime)) {
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return NS_ERROR_FAILURE;
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}
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nsAutoString toMimeInQuestion;
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aToDataFlavor->GetMimeType(toMimeInQuestion);
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nsAutoString text;
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nsAutoString srcText;
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srcText.SetString((char *)aFromData, aDataLen);
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if (toMimeInQuestion.Equals(kTextMime)) {
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if (NS_OK == ConvertFromXIFToText(srcText, text)) {
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*aToData = (void *)text.ToNewCString();
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*aDataToLen = text.Length()+1;
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}
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} else if (toMimeInQuestion.Equals(kHTMLMime)) {
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if (NS_OK == ConvertFromXIFToHTML(srcText, text)) {
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*aToData = (void *)text.ToNewCString();
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*aDataToLen = text.Length()+1;
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}
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} else if (toMimeInQuestion.Equals(kAOLMailMime)) {
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if (NS_OK == ConvertFromXIFToAOLMail(srcText, text)) {
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*aToData = (void *)text.ToNewCString();
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*aDataToLen = text.Length()+1;
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}
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}
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return NS_OK;
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}
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/**
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*
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*
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*/
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NS_IMETHODIMP nsXIFFormatConverter::ConvertFromXIFToText(const nsString & aFromStr, nsString & aToStr)
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{
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aToStr = "";
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nsIParser* parser;
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nsresult rv = nsComponentManager::CreateInstance(kCParserCID,
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nsnull,
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kCParserIID,
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(void **)&parser);
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if (NS_OK != rv)
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return rv;
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nsIHTMLContentSink* sink = nsnull;
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// rv = NS_New_HTML_ContentSinkStream(&sink,PR_FALSE,PR_FALSE);
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// Changed to do plain text only for Dogfood -- gpk 3/14/99
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rv = NS_New_HTMLToTXT_SinkStream(&sink);
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if (NS_OK == rv) {
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parser->SetContentSink(sink);
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nsIDTD* dtd = nsnull;
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rv = NS_NewXIFDTD(&dtd);
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if (NS_OK == rv) {
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parser->RegisterDTD(dtd);
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nsAutoString str(aFromStr);
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parser->Parse(str, 0, "text/xif",PR_FALSE,PR_TRUE);
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}
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NS_IF_RELEASE(dtd);
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((nsHTMLToTXTSinkStream*)sink)->GetStringBuffer(aToStr);
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}
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NS_IF_RELEASE(sink);
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NS_RELEASE(parser);
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return NS_OK;
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}
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/**
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*
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*
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*/
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NS_IMETHODIMP nsXIFFormatConverter::ConvertFromXIFToHTML(const nsString & aFromStr, nsString & aToStr)
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{
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aToStr = "";
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nsIParser* parser;
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nsresult rv = nsComponentManager::CreateInstance(kCParserCID,
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nsnull,
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kCParserIID,
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(void **)&parser);
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if (NS_OK != rv)
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return rv;
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nsIHTMLContentSink* sink = nsnull;
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rv = NS_New_HTML_ContentSinkStream(&sink,PR_FALSE,PR_FALSE);
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ostrstream* copyStream;
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#ifdef XP_MAC
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copyStream = new stringstream;
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#else
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copyStream = new ostrstream;
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#endif
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((nsHTMLContentSinkStream*)sink)->SetOutputStream(*copyStream);
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if (NS_OK == rv) {
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parser->SetContentSink(sink);
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nsIDTD* dtd = nsnull;
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rv = NS_NewXIFDTD(&dtd);
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if (NS_OK == rv) {
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parser->RegisterDTD(dtd);
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nsAutoString str(aFromStr);
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parser->Parse(str, 0, "text/xif",PR_FALSE,PR_TRUE);
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}
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NS_IF_RELEASE(dtd);
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}
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NS_IF_RELEASE(sink);
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NS_RELEASE(parser);
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PRInt32 len = copyStream->pcount();
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char* str = (char*)copyStream->str();
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if (str) {
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aToStr.SetString(str, len);
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delete[] str;
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}
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return NS_OK;
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}
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/**
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*
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*
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*/
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NS_IMETHODIMP nsXIFFormatConverter::ConvertFromXIFToAOLMail(const nsString & aFromStr, nsString & aToStr)
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{
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nsAutoString html;
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if (NS_OK == ConvertFromXIFToHTML(aFromStr, html)) {
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aToStr = "<HTML>";
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aToStr.Append(html);
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aToStr.Append("</HTML>");
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}
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return NS_OK;
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}
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55
widget/src/xpwidgets/nsXIFFormatConverter.h
Normal file
55
widget/src/xpwidgets/nsXIFFormatConverter.h
Normal file
@ -0,0 +1,55 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsXIFFormatConverter_h__
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#define nsXIFFormatConverter_h__
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#include "nsIFormatConverter.h"
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#include "nsString.h"
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class nsIDataFlavor;
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class nsXIFFormatConverter : public nsIFormatConverter
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{
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public:
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nsXIFFormatConverter();
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virtual ~nsXIFFormatConverter();
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//nsISupports
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NS_DECL_ISUPPORTS
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//nsIXIFConverter
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NS_IMETHOD GetInputDataFlavors(nsISupportsArray ** aDataFlavorList);
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NS_IMETHOD GetOutputDataFlavors(nsISupportsArray ** aDataFlavorList);
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NS_IMETHOD CanConvert(nsIDataFlavor * aFromDataFlavor, nsIDataFlavor * aToDataFlavor);
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NS_IMETHOD Convert(nsIDataFlavor * aFromDataFlavor, void * aFromData, PRUint32 aDataLen,
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nsIDataFlavor * aToDataFlavor, void ** aToData, PRUint32 * aDataToLen);
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protected:
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NS_IMETHOD ConvertFromXIFToHTML(const nsString & aFromStr, nsString & aToStr);
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NS_IMETHOD ConvertFromXIFToText(const nsString & aFromStr, nsString & aToStr);
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NS_IMETHOD ConvertFromXIFToAOLMail(const nsString & aFromStr, nsString & aToStr);
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nsISupportsArray * mDFList;
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};
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#endif // nsXIFFormatConverter_h__
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