LCOV - code coverage report
Current view: directory - content/svg/content/src - DOMSVGAnimatedLengthList.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 51 3 5.9 %
Date: 2012-06-02 Functions: 18 2 11.1 %

       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 "DOMSVGAnimatedLengthList.h"
      38                 : #include "DOMSVGLengthList.h"
      39                 : #include "SVGAnimatedLengthList.h"
      40                 : #include "nsSVGElement.h"
      41                 : #include "nsCOMPtr.h"
      42                 : #include "nsSVGAttrTearoffTable.h"
      43                 : 
      44                 : // See the architecture comment in this file's header.
      45                 : 
      46                 : namespace mozilla {
      47                 : 
      48                 : static nsSVGAttrTearoffTable<SVGAnimatedLengthList, DOMSVGAnimatedLengthList>
      49            1464 :   sSVGAnimatedLengthListTearoffTable;
      50                 : 
      51            1464 : NS_SVG_VAL_IMPL_CYCLE_COLLECTION(DOMSVGAnimatedLengthList, mElement)
      52                 : 
      53               0 : NS_IMPL_CYCLE_COLLECTING_ADDREF(DOMSVGAnimatedLengthList)
      54               0 : NS_IMPL_CYCLE_COLLECTING_RELEASE(DOMSVGAnimatedLengthList)
      55                 : 
      56                 : } // namespace mozilla
      57                 : DOMCI_DATA(SVGAnimatedLengthList, mozilla::DOMSVGAnimatedLengthList)
      58                 : namespace mozilla {
      59                 : 
      60               0 : NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DOMSVGAnimatedLengthList)
      61               0 :   NS_INTERFACE_MAP_ENTRY(nsIDOMSVGAnimatedLengthList)
      62               0 :   NS_INTERFACE_MAP_ENTRY(nsISupports)
      63               0 :   NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(SVGAnimatedLengthList)
      64               0 : NS_INTERFACE_MAP_END
      65                 : 
      66                 : NS_IMETHODIMP
      67               0 : DOMSVGAnimatedLengthList::GetBaseVal(nsIDOMSVGLengthList **_retval)
      68                 : {
      69               0 :   if (!mBaseVal) {
      70               0 :     mBaseVal = new DOMSVGLengthList(this, InternalAList().GetBaseValue());
      71                 :   }
      72               0 :   NS_ADDREF(*_retval = mBaseVal);
      73               0 :   return NS_OK;
      74                 : }
      75                 : 
      76                 : NS_IMETHODIMP
      77               0 : DOMSVGAnimatedLengthList::GetAnimVal(nsIDOMSVGLengthList **_retval)
      78                 : {
      79               0 :   if (!mAnimVal) {
      80               0 :     mAnimVal = new DOMSVGLengthList(this, InternalAList().GetAnimValue());
      81                 :   }
      82               0 :   NS_ADDREF(*_retval = mAnimVal);
      83               0 :   return NS_OK;
      84                 : }
      85                 : 
      86                 : /* static */ already_AddRefed<DOMSVGAnimatedLengthList>
      87               0 : DOMSVGAnimatedLengthList::GetDOMWrapper(SVGAnimatedLengthList *aList,
      88                 :                                         nsSVGElement *aElement,
      89                 :                                         PRUint8 aAttrEnum,
      90                 :                                         PRUint8 aAxis)
      91                 : {
      92                 :   DOMSVGAnimatedLengthList *wrapper =
      93               0 :     sSVGAnimatedLengthListTearoffTable.GetTearoff(aList);
      94               0 :   if (!wrapper) {
      95               0 :     wrapper = new DOMSVGAnimatedLengthList(aElement, aAttrEnum, aAxis);
      96               0 :     sSVGAnimatedLengthListTearoffTable.AddTearoff(aList, wrapper);
      97                 :   }
      98               0 :   NS_ADDREF(wrapper);
      99               0 :   return wrapper;
     100                 : }
     101                 : 
     102                 : /* static */ DOMSVGAnimatedLengthList*
     103               0 : DOMSVGAnimatedLengthList::GetDOMWrapperIfExists(SVGAnimatedLengthList *aList)
     104                 : {
     105               0 :   return sSVGAnimatedLengthListTearoffTable.GetTearoff(aList);
     106                 : }
     107                 : 
     108               0 : DOMSVGAnimatedLengthList::~DOMSVGAnimatedLengthList()
     109                 : {
     110                 :   // Script no longer has any references to us, to our base/animVal objects, or
     111                 :   // to any of their list items.
     112               0 :   sSVGAnimatedLengthListTearoffTable.RemoveTearoff(&InternalAList());
     113               0 : }
     114                 : 
     115                 : void
     116               0 : DOMSVGAnimatedLengthList::InternalBaseValListWillChangeTo(const SVGLengthList& aNewValue)
     117                 : {
     118                 :   // When the number of items in our internal counterpart's baseVal changes,
     119                 :   // we MUST keep our baseVal in sync. If we don't, script will either see a
     120                 :   // list that is too short and be unable to access indexes that should be
     121                 :   // valid, or else, MUCH WORSE, script will see a list that is too long and be
     122                 :   // able to access "items" at indexes that are out of bounds (read/write to
     123                 :   // bad memory)!!
     124                 : 
     125               0 :   nsRefPtr<DOMSVGAnimatedLengthList> kungFuDeathGrip;
     126               0 :   if (mBaseVal) {
     127               0 :     if (aNewValue.Length() < mBaseVal->Length()) {
     128                 :       // InternalListLengthWillChange might clear last reference to |this|.
     129                 :       // Retain a temporary reference to keep from dying before returning.
     130               0 :       kungFuDeathGrip = this;
     131                 :     }
     132               0 :     mBaseVal->InternalListLengthWillChange(aNewValue.Length());
     133                 :   }
     134                 : 
     135                 :   // If our attribute is not animating, then our animVal mirrors our baseVal
     136                 :   // and we must sync its length too. (If our attribute is animating, then the
     137                 :   // SMIL engine takes care of calling InternalAnimValListWillChangeTo() if
     138                 :   // necessary.)
     139                 : 
     140               0 :   if (!IsAnimating()) {
     141               0 :     InternalAnimValListWillChangeTo(aNewValue);
     142                 :   }
     143               0 : }
     144                 : 
     145                 : void
     146               0 : DOMSVGAnimatedLengthList::InternalAnimValListWillChangeTo(const SVGLengthList& aNewValue)
     147                 : {
     148               0 :   if (mAnimVal) {
     149               0 :     mAnimVal->InternalListLengthWillChange(aNewValue.Length());
     150                 :   }
     151               0 : }
     152                 : 
     153                 : bool
     154               0 : DOMSVGAnimatedLengthList::IsAnimating() const
     155                 : {
     156               0 :   return InternalAList().IsAnimating();
     157                 : }
     158                 : 
     159                 : SVGAnimatedLengthList&
     160               0 : DOMSVGAnimatedLengthList::InternalAList()
     161                 : {
     162               0 :   return *mElement->GetAnimatedLengthList(mAttrEnum);
     163                 : }
     164                 : 
     165                 : const SVGAnimatedLengthList&
     166               0 : DOMSVGAnimatedLengthList::InternalAList() const
     167                 : {
     168               0 :   return *mElement->GetAnimatedLengthList(mAttrEnum);
     169                 : }
     170                 : 
     171            4392 : } // namespace mozilla

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