LCOV - app.info - content/svg/content/src/DOMSVGAnimatedLengthList.cpp

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: | 2012-04-21 | 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            1396 :   sSVGAnimatedLengthListTearoffTable;
          50                 :
          51            1396 : 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            4188 : } // namespace mozilla

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