The Tor Browser: dom/smil/nsSMILInterval.h@97036ab72558

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #ifndef NS_SMILINTERVAL_H_

     7 #define NS_SMILINTERVAL_H_

     9 #include "nsSMILInstanceTime.h"

    10 #include "nsTArray.h"

    12 //----------------------------------------------------------------------

    13 // nsSMILInterval class

    14 //

    15 // A structure consisting of a begin and end time. The begin time must be

    16 // resolved (i.e. not indefinite or unresolved).

    17 //

    18 // For an overview of how this class is related to other SMIL time classes see

    19 // the documentation in nsSMILTimeValue.h

    21 class nsSMILInterval

    22 {

    23 public:

    24   nsSMILInterval();

    25   nsSMILInterval(const nsSMILInterval& aOther);

    26   ~nsSMILInterval();

    27   void Unlink(bool aFiltered = false);

    29   const nsSMILInstanceTime* Begin() const

    30   {

    31     NS_ABORT_IF_FALSE(mBegin && mEnd,

    32         "Requesting Begin() on un-initialized instance time");

    33     return mBegin;

    34   }

    35   nsSMILInstanceTime* Begin();

    37   const nsSMILInstanceTime* End() const

    38   {

    39     NS_ABORT_IF_FALSE(mBegin && mEnd,

    40         "Requesting End() on un-initialized instance time");

    41     return mEnd;

    42   }

    43   nsSMILInstanceTime* End();

    45   void SetBegin(nsSMILInstanceTime& aBegin);

    46   void SetEnd(nsSMILInstanceTime& aEnd);

    47   void Set(nsSMILInstanceTime& aBegin, nsSMILInstanceTime& aEnd)

    48   {

    49     SetBegin(aBegin);

    50     SetEnd(aEnd);

    51   }

    53   void FixBegin();

    54   void FixEnd();

    56   typedef nsTArray<nsRefPtr<nsSMILInstanceTime> > InstanceTimeList;

    58   void AddDependentTime(nsSMILInstanceTime& aTime);

    59   void RemoveDependentTime(const nsSMILInstanceTime& aTime);

    60   void GetDependentTimes(InstanceTimeList& aTimes);

    62   // Cue for assessing if this interval can be filtered

    63   bool IsDependencyChainLink() const;

    65 private:

    66   nsRefPtr<nsSMILInstanceTime> mBegin;

    67   nsRefPtr<nsSMILInstanceTime> mEnd;

    69   // nsSMILInstanceTimes to notify when this interval is changed or deleted.

    70   InstanceTimeList mDependentTimes;

    72   // Indicates if the end points of the interval are fixed or not.

    73   //

    74   // Note that this is not the same as having an end point whose TIME is fixed

    75   // (i.e. nsSMILInstanceTime::IsFixed() returns true). This is because it is

    76   // possible to have an end point with a fixed TIME and yet still update the

    77   // end point to refer to a different nsSMILInstanceTime object.

    78   //

    79   // However, if mBegin/EndFixed is true, then BOTH the nsSMILInstanceTime

    80   // OBJECT returned for that end point and its TIME value will not change.

    81   bool mBeginFixed;

    82   bool mEndFixed;

    83 };

    85 #endif // NS_SMILINTERVAL_H_

The Tor Browser / file revision

dom/smil/nsSMILInterval.h@97036ab72558

dom/smil/nsSMILInterval.h