The Tor Browser: accessible/src/base/Filters.cpp@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 /* This Source Code Form is subject to the terms of the Mozilla Public

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

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

     5 #include "Filters.h"

     7 #include "Accessible-inl.h"

     8 #include "nsAccUtils.h"

     9 #include "Role.h"

    10 #include "States.h"

    12 using namespace mozilla::a11y;

    13 using namespace mozilla::a11y::filters;

    15 uint32_t

    16 filters::GetSelected(Accessible* aAccessible)

    17 {

    18   if (aAccessible->State() & states::SELECTED)

    19     return eMatch | eSkipSubtree;

    21   return eSkip;

    22 }

    24 uint32_t

    25 filters::GetSelectable(Accessible* aAccessible)

    26 {

    27   if (aAccessible->InteractiveState() & states::SELECTABLE)

    28     return eMatch | eSkipSubtree;

    30   return eSkip;

    31 }

    33 uint32_t

    34 filters::GetRow(Accessible* aAccessible)

    35 {

    36   a11y::role role = aAccessible->Role();

    37   if (role == roles::ROW)

    38     return eMatch | eSkipSubtree;

    40   // Look for rows inside rowgroup.

    41   if (role == roles::GROUPING)

    42     return eSkip;

    44   return eSkipSubtree;

    45 }

    47 uint32_t

    48 filters::GetCell(Accessible* aAccessible)

    49 {

    50   a11y::role role = aAccessible->Role();

    51   return role == roles::GRID_CELL || role == roles::ROWHEADER ||

    52     role == roles::COLUMNHEADER ? eMatch : eSkipSubtree;

    53 }

    55 uint32_t

    56 filters::GetEmbeddedObject(Accessible* aAccessible)

    57 {

    58   return nsAccUtils::IsEmbeddedObject(aAccessible) ?

    59     eMatch | eSkipSubtree : eSkipSubtree;

    60 }

The Tor Browser / file revision

accessible/src/base/Filters.cpp@97036ab72558

accessible/src/base/Filters.cpp