119 lines
3.7 KiB
C++
119 lines
3.7 KiB
C++
/* -*- 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")=0; 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) 1999 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsCharsetObserver.h"
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static NS_DEFINE_IID(kIElementObserverIID, NS_IELEMENTOBSERVER_IID);
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static NS_DEFINE_IID(kIObserverIID, NS_IOBSERVER_IID);
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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nsCharsetObserver::nsCharsetObserver()
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{
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NS_INIT_REFCNT();
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}
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nsCharsetObserver::~nsCharsetObserver()
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{
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}
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NS_IMPL_ADDREF ( nsCharsetObserver );
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NS_IMPL_RELEASE ( nsCharsetObserver );
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NS_IMETHODIMP nsCharsetObserver::QueryInterface(REFNSIID 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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*aInstancePtr = NULL;
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if( aIID.Equals ( kIElementObserverIID )) {
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*aInstancePtr = (void*) ((nsIElementObserver*) this);
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NS_ADDREF_THIS();
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return NS_OK;
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}
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if( aIID.Equals ( kIObserverIID )) {
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*aInstancePtr = (void*) ((nsIObserver*) this);
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NS_ADDREF_THIS();
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return NS_OK;
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}
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if( aIID.Equals ( kISupportsIID )) {
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*aInstancePtr = (void*) (this);
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NS_ADDREF_THIS();
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return NS_OK;
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}
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return NS_NOINTERFACE;
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}
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NS_IMETHODIMP nsCharsetObserver::GetTagName(nsString& oTag)
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{
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oTag = "META";
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return NS_OK;
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}
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NS_IMETHODIMP nsCharsetObserver::Notify(
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PRUint32 aDocumentID,
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const nsString& aTag,
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PRUint32 numOfAttributes,
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const nsString* nameArray,
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const nsString* valueArray)
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{
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nsresult res = NS_OK;
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if(aTag.EqualsIgnoreCase("META"))
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{
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if((numOfAttributes >= 2) &&
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(nameArray[0].EqualsIgnoreCase("HTTP-EQUIV")) &&
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(valueArray[0].EqualsIgnoreCase("Content-Type")) &&
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(nameArray[1].EqualsIgnoreCase("CONTENT")) )
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{
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nsAutoString type;
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valueArray[2].Left(type, 9); // length of "text/html" == 9
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if(type.EqualsIgnoreCase("text/html"))
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{
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PRInt32 charsetValueStart = valueArray[2].RFind("charset=", PR_TRUE ) ;
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if(kNotFound != charsetValueStart) {
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charsetValueStart += 8; // 8 = "charset=".length
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PRInt32 charsetValueEnd = valueArray[2].FindCharInSet("\'\";", charsetValueStart );
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if(kNotFound == charsetValueEnd )
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charsetValueEnd = valueArray[2].Length();
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nsAutoString theCharset;
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valueArray[2].Mid(theCharset, charsetValueStart, charsetValueEnd - charsetValueStart);
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// XXX
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// Get the charest in theCharset
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// Now, how can we verify the object, if
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// we pass the object (nsScanner) when we create this object
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// then it mean we need to create one nsIElementObserver
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// for every nsParser object
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// However, currently we register ourself to a global
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// nsIObserverService, not to a nsParser.
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} // if
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} // if
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} // if
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} // if
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return res;
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}
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NS_IMETHODIMP Notify(nsISupports** result)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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