LCOV - app.info - parser/html/nsHtml5MetaScannerCppSupplement.h

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: | 2012-07-07 | 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                 : }

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