LCOV - code coverage report
Current view: directory - content/svg/content/src - SVGPointList.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 51 0 0.0 %
Date: 2012-06-02 Functions: 3 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is Mozilla SVG Project code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is the Mozilla Foundation.
      18                 :  * Portions created by the Initial Developer are Copyright (C) 2010
      19                 :  * the Initial Developer. All Rights Reserved.
      20                 :  *
      21                 :  * Contributor(s):
      22                 :  *
      23                 :  * Alternatively, the contents of this file may be used under the terms of
      24                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      25                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      26                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      27                 :  * of those above. If you wish to allow use of your version of this file only
      28                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      29                 :  * use your version of this file under the terms of the MPL, indicate your
      30                 :  * decision by deleting the provisions above and replace them with the notice
      31                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      32                 :  * the provisions above, a recipient may use your version of this file under
      33                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      34                 :  *
      35                 :  * ***** END LICENSE BLOCK ***** */
      36                 : 
      37                 : #include "mozilla/Util.h"
      38                 : 
      39                 : #include "SVGPointList.h"
      40                 : #include "SVGAnimatedPointList.h"
      41                 : #include "nsSVGElement.h"
      42                 : #include "nsDOMError.h"
      43                 : #include "nsString.h"
      44                 : #include "nsSVGUtils.h"
      45                 : #include "string.h"
      46                 : #include "prdtoa.h"
      47                 : #include "nsTextFormatter.h"
      48                 : #include "nsCharSeparatedTokenizer.h"
      49                 : #include "nsMathUtils.h"
      50                 : 
      51                 : namespace mozilla {
      52                 : 
      53                 : nsresult
      54               0 : SVGPointList::CopyFrom(const SVGPointList& rhs)
      55                 : {
      56               0 :   if (!SetCapacity(rhs.Length())) {
      57                 :     // Yes, we do want fallible alloc here
      58               0 :     return NS_ERROR_OUT_OF_MEMORY;
      59                 :   }
      60               0 :   mItems = rhs.mItems;
      61               0 :   return NS_OK;
      62                 : }
      63                 : 
      64                 : void
      65               0 : SVGPointList::GetValueAsString(nsAString& aValue) const
      66                 : {
      67               0 :   aValue.Truncate();
      68                 :   PRUnichar buf[50];
      69               0 :   PRUint32 last = mItems.Length() - 1;
      70               0 :   for (PRUint32 i = 0; i < mItems.Length(); ++i) {
      71                 :     // Would like to use aValue.AppendPrintf("%f,%f", item.mX, item.mY),
      72                 :     // but it's not possible to always avoid trailing zeros.
      73                 :     nsTextFormatter::snprintf(buf, ArrayLength(buf),
      74               0 :                               NS_LITERAL_STRING("%g,%g").get(),
      75               0 :                               double(mItems[i].mX), double(mItems[i].mY));
      76                 :     // We ignore OOM, since it's not useful for us to return an error.
      77               0 :     aValue.Append(buf);
      78               0 :     if (i != last) {
      79               0 :       aValue.Append(' ');
      80                 :     }
      81                 :   }
      82               0 : }
      83                 : 
      84                 : static inline char* SkipWhitespace(char* str)
      85                 : {
      86                 :   while (IsSVGWhitespace(*str))
      87                 :     ++str;
      88                 :   return str;
      89                 : }
      90                 : 
      91                 : nsresult
      92               0 : SVGPointList::SetValueFromString(const nsAString& aValue)
      93                 : {
      94                 :   // The spec says that the list is parsed and accepted up to the first error
      95                 :   // encountered, so we must call CopyFrom even if an error occurs. We still
      96                 :   // want to throw any error code from setAttribute if there's a problem
      97                 :   // though, so we must take care to return any error code.
      98                 : 
      99               0 :   nsresult rv = NS_OK;
     100                 : 
     101               0 :   SVGPointList temp;
     102                 : 
     103                 :   nsCharSeparatedTokenizerTemplate<IsSVGWhitespace>
     104               0 :     tokenizer(aValue, ',', nsCharSeparatedTokenizer::SEPARATOR_OPTIONAL);
     105                 : 
     106               0 :   nsCAutoString str1, str2;  // outside loop to minimize memory churn
     107                 : 
     108               0 :   while (tokenizer.hasMoreTokens()) {
     109               0 :     CopyUTF16toUTF8(tokenizer.nextToken(), str1);
     110               0 :     const char *token1 = str1.get();
     111               0 :     if (*token1 == '\0') {
     112               0 :       rv = NS_ERROR_DOM_SYNTAX_ERR;
     113               0 :       break;
     114                 :     }
     115                 :     char *end;
     116               0 :     float x = float(PR_strtod(token1, &end));
     117               0 :     if (end == token1 || !NS_finite(x)) {
     118               0 :       rv = NS_ERROR_DOM_SYNTAX_ERR;
     119               0 :       break;
     120                 :     }
     121                 :     const char *token2;
     122               0 :     if (*end == '-') {
     123                 :       // It's possible for the token to be 10-30 which has
     124                 :       // no separator but needs to be parsed as 10, -30
     125               0 :       token2 = end;
     126                 :     } else {
     127               0 :       if (!tokenizer.hasMoreTokens()) {
     128               0 :         rv = NS_ERROR_DOM_SYNTAX_ERR;
     129               0 :         break;
     130                 :       }
     131               0 :       CopyUTF16toUTF8(tokenizer.nextToken(), str2);
     132               0 :       token2 = str2.get();
     133               0 :       if (*token2 == '\0') {
     134               0 :         rv = NS_ERROR_DOM_SYNTAX_ERR;
     135               0 :         break;
     136                 :       }
     137                 :     }
     138                 : 
     139               0 :     float y = float(PR_strtod(token2, &end));
     140               0 :     if (*end != '\0' || !NS_finite(y)) {
     141               0 :       rv = NS_ERROR_DOM_SYNTAX_ERR;
     142               0 :       break;
     143                 :     }
     144                 : 
     145               0 :     temp.AppendItem(SVGPoint(x, y));
     146                 :   }
     147               0 :   if (tokenizer.lastTokenEndedWithSeparator()) {
     148               0 :     rv = NS_ERROR_DOM_SYNTAX_ERR; // trailing comma
     149                 :   }
     150               0 :   nsresult rv2 = CopyFrom(temp);
     151               0 :   if (NS_FAILED(rv2)) {
     152               0 :     return rv2; // prioritize OOM error code over syntax errors
     153                 :   }
     154               0 :   return rv;
     155                 : }
     156                 : 
     157                 : } // namespace mozilla

Generated by: LCOV version 1.7