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lightning-sunbird  0.9+nobinonly
nsComposeTxtSrvFilter.cpp
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
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00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
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00014  *
00015  * The Original Code is mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998
00020  * the Initial Developer. All Rights Reserved.
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00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either of the GNU General Public License Version 2 or later (the "GPL"),
00026  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
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00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #include "nsComposeTxtSrvFilter.h"
00039 #include "nsIContent.h"
00040 #include "nsIDOMNode.h"
00041 #include "nsString.h"
00042 #include "nsINameSpaceManager.h"
00043 
00044 nsComposeTxtSrvFilter::nsComposeTxtSrvFilter() :
00045   mIsForMail(PR_FALSE)
00046 {
00047 
00048   mBlockQuoteAtom  = do_GetAtom("blockquote");
00049   mPreAtom         = do_GetAtom("pre");
00050   mSpanAtom        = do_GetAtom("span");
00051   mTableAtom       = do_GetAtom("table");
00052   mMozQuoteAtom    = do_GetAtom("_moz_quote");
00053   mClassAtom       = do_GetAtom("class");
00054   mTypeAtom        = do_GetAtom("type");
00055   mScriptAtom      = do_GetAtom("script");
00056   mTextAreaAtom    = do_GetAtom("textarea");
00057   mSelectAreaAtom  = do_GetAtom("select");
00058   mMapAtom         = do_GetAtom("map");
00059 }
00060 
00061 NS_IMPL_ISUPPORTS1(nsComposeTxtSrvFilter, nsITextServicesFilter)
00062 
00063 NS_IMETHODIMP 
00064 nsComposeTxtSrvFilter::Skip(nsIDOMNode* aNode, PRBool *_retval)
00065 {
00066   *_retval = PR_FALSE;
00067 
00068   // Check to see if we can skip this node
00069   // For nodes that are blockquotes, we must make sure
00070   // their type is "cite"
00071   nsCOMPtr<nsIContent> content(do_QueryInterface(aNode));
00072   if (content) {
00073     nsIAtom *tag = content->Tag();
00074     if (tag == mBlockQuoteAtom) {
00075       if (mIsForMail) {
00076         nsAutoString cite;
00077         if (NS_SUCCEEDED(content->GetAttr(kNameSpaceID_None, mTypeAtom, cite))) {
00078           *_retval = cite.LowerCaseEqualsLiteral("cite");
00079         }
00080       }
00081     } else if (tag == mPreAtom || tag == mSpanAtom) {
00082       if (mIsForMail) {
00083         nsAutoString mozQuote;
00084         if (NS_SUCCEEDED(content->GetAttr(kNameSpaceID_None, mMozQuoteAtom, mozQuote))) {
00085           *_retval = mozQuote.LowerCaseEqualsLiteral("true");            
00086         }
00087 
00088         if (!*_retval) {
00089           nsAutoString className;
00090           if (NS_SUCCEEDED(content->GetAttr(kNameSpaceID_None, mClassAtom, className))) 
00091             *_retval = className.EqualsLiteral("moz-signature");
00092         }
00093       }         
00094     } else if (tag == mScriptAtom ||
00095                tag == mTextAreaAtom ||
00096                tag == mSelectAreaAtom ||
00097                tag == mMapAtom) {
00098       *_retval = PR_TRUE;
00099     } else if (tag == mTableAtom) {
00100       if (mIsForMail) {
00101           nsAutoString className;
00102           if (NS_SUCCEEDED(content->GetAttr(kNameSpaceID_None, mClassAtom, className))) {
00103             *_retval = className.EqualsLiteral("moz-email-headers-table");
00104         }
00105       } 
00106     }
00107   }
00108 
00109   return NS_OK;
00110 }