LCOV - code coverage report
Current view: directory - parser/html - nsHtml5MetaScannerCppSupplement.h (source / functions) Found Hit Coverage
Test: app.info Lines: 49 0 0.0 %
Date: 2012-06-02 Functions: 2 0 0.0 %

       1                 : /* ***** BEGIN LICENSE BLOCK *****
       2                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       3                 :  *
       4                 :  * The contents of this file are subject to the Mozilla Public License Version
       5                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       6                 :  * the License. You may obtain a copy of the License at
       7                 :  * http://www.mozilla.org/MPL/
       8                 :  *
       9                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      10                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      11                 :  * for the specific language governing rights and limitations under the
      12                 :  * License.
      13                 :  *
      14                 :  * The Original Code is HTML Parser C++ Translator code.
      15                 :  *
      16                 :  * The Initial Developer of the Original Code is
      17                 :  * Mozilla Foundation.
      18                 :  * Portions created by the Initial Developer are Copyright (C) 2009
      19                 :  * the Initial Developer. All Rights Reserved.
      20                 :  *
      21                 :  * Contributor(s):
      22                 :  *   Henri Sivonen <hsivonen@iki.fi>
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      26                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 :  
      38                 : #include "nsICharsetConverterManager.h"
      39                 : #include "nsServiceManagerUtils.h"
      40                 : #include "nsCharsetAlias.h"
      41                 : #include "nsEncoderDecoderUtils.h"
      42                 : #include "nsTraceRefcnt.h"
      43                 : 
      44                 : 
      45                 : void
      46               0 : nsHtml5MetaScanner::sniff(nsHtml5ByteReadable* bytes, nsIUnicodeDecoder** decoder, nsACString& charset)
      47                 : {
      48               0 :   readable = bytes;
      49               0 :   stateLoop(stateSave);
      50               0 :   readable = nsnull;
      51               0 :   if (mUnicodeDecoder) {
      52               0 :     mUnicodeDecoder.forget(decoder);
      53               0 :     charset.Assign(mCharset);
      54                 :   }
      55               0 : }
      56                 : 
      57                 : bool
      58               0 : nsHtml5MetaScanner::tryCharset(nsString* charset)
      59                 : {
      60                 :   // This code needs to stay in sync with
      61                 :   // nsHtml5StreamParser::internalEncodingDeclaration. Unfortunately, the
      62                 :   // trickery with member fields here leads to some copy-paste reuse. :-(
      63               0 :   nsresult res = NS_OK;
      64               0 :   nsCOMPtr<nsICharsetConverterManager> convManager = do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID, &res);
      65               0 :   if (NS_FAILED(res)) {
      66               0 :     NS_ERROR("Could not get CharsetConverterManager service.");
      67               0 :     return false;
      68                 :   }
      69               0 :   nsCAutoString encoding;
      70               0 :   CopyUTF16toUTF8(*charset, encoding);
      71               0 :   encoding.Trim(" \t\r\n\f");
      72               0 :   if (encoding.LowerCaseEqualsLiteral("utf-16") ||
      73               0 :       encoding.LowerCaseEqualsLiteral("utf-16be") ||
      74               0 :       encoding.LowerCaseEqualsLiteral("utf-16le")) {
      75               0 :     mCharset.Assign("UTF-8");
      76               0 :     res = convManager->GetUnicodeDecoderRaw(mCharset.get(), getter_AddRefs(mUnicodeDecoder));
      77               0 :     if (NS_FAILED(res)) {
      78               0 :       NS_ERROR("Could not get decoder for UTF-8.");
      79               0 :       return false;
      80                 :     }
      81               0 :     return true;
      82                 :   }
      83               0 :   nsCAutoString preferred;
      84               0 :   res = nsCharsetAlias::GetPreferred(encoding, preferred);
      85               0 :   if (NS_FAILED(res)) {
      86               0 :     return false;
      87                 :   }
      88               0 :   if (preferred.LowerCaseEqualsLiteral("utf-16") ||
      89               0 :       preferred.LowerCaseEqualsLiteral("utf-16be") ||
      90               0 :       preferred.LowerCaseEqualsLiteral("utf-16le") ||
      91               0 :       preferred.LowerCaseEqualsLiteral("utf-7") ||
      92               0 :       preferred.LowerCaseEqualsLiteral("jis_x0212-1990") ||
      93               0 :       preferred.LowerCaseEqualsLiteral("x-jis0208") ||
      94               0 :       preferred.LowerCaseEqualsLiteral("x-imap4-modified-utf7") ||
      95               0 :       preferred.LowerCaseEqualsLiteral("x-user-defined")) {
      96               0 :     return false;
      97                 :   }
      98               0 :   res = convManager->GetUnicodeDecoderRaw(preferred.get(), getter_AddRefs(mUnicodeDecoder));
      99               0 :   if (res == NS_ERROR_UCONV_NOCONV) {
     100               0 :     return false;
     101               0 :   } else if (NS_FAILED(res)) {
     102               0 :     NS_ERROR("Getting an encoding decoder failed in a bad way.");
     103               0 :     mUnicodeDecoder = nsnull;
     104               0 :     return false;
     105                 :   } else {
     106               0 :     NS_ASSERTION(mUnicodeDecoder, "Getter nsresult and object don't match.");
     107               0 :     mCharset.Assign(preferred);
     108               0 :     return true;
     109                 :   }
     110                 : }

Generated by: LCOV version 1.7