The Tor Browser: accessible/src/atk/nsMaiInterfaceSelection.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 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* vim: set ts=2 et sw=2 tw=80: */

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

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

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

     7 #include "InterfaceInitFuncs.h"

     9 #include "Accessible-inl.h"

    10 #include "AccessibleWrap.h"

    11 #include "nsMai.h"

    12 #include "mozilla/Likely.h"

    14 #include <atk/atk.h>

    16 using namespace mozilla::a11y;

    18 extern "C" {

    20 static gboolean

    21 addSelectionCB(AtkSelection *aSelection, gint i)

    22 {

    23   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));

    24   if (!accWrap || !accWrap->IsSelect())

    25     return FALSE;

    27   return accWrap->AddItemToSelection(i);

    28 }

    30 static gboolean

    31 clearSelectionCB(AtkSelection *aSelection)

    32 {

    33   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));

    34   if (!accWrap || !accWrap->IsSelect())

    35     return FALSE;

    37   return accWrap->UnselectAll();

    38 }

    40 static AtkObject*

    41 refSelectionCB(AtkSelection *aSelection, gint i)

    42 {

    43   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));

    44   if (!accWrap || !accWrap->IsSelect())

    45     return nullptr;

    47   Accessible* selectedItem = accWrap->GetSelectedItem(i);

    48   if (!selectedItem)

    49     return nullptr;

    51   AtkObject* atkObj = AccessibleWrap::GetAtkObject(selectedItem);

    52   if (atkObj)

    53     g_object_ref(atkObj);

    55   return atkObj;

    56 }

    58 static gint

    59 getSelectionCountCB(AtkSelection *aSelection)

    60 {

    61   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));

    62   if (!accWrap || !accWrap->IsSelect())

    63     return -1;

    65   return accWrap->SelectedItemCount();

    66 }

    68 static gboolean

    69 isChildSelectedCB(AtkSelection *aSelection, gint i)

    70 {

    71   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));

    72   if (!accWrap || !accWrap->IsSelect())

    73     return FALSE;

    75   return accWrap->IsItemSelected(i);

    76 }

    78 static gboolean

    79 removeSelectionCB(AtkSelection *aSelection, gint i)

    80 {

    81   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));

    82   if (!accWrap || !accWrap->IsSelect())

    83     return FALSE;

    85   return accWrap->RemoveItemFromSelection(i);

    86 }

    88 static gboolean

    89 selectAllSelectionCB(AtkSelection *aSelection)

    90 {

    91   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));

    92   if (!accWrap || !accWrap->IsSelect())

    93     return FALSE;

    95   return accWrap->SelectAll();

    96 }

    97 }

    99 void

   100 selectionInterfaceInitCB(AtkSelectionIface* aIface)

   101 {

   102   NS_ASSERTION(aIface, "Invalid aIface");

   103   if (MOZ_UNLIKELY(!aIface))

   104     return;

   106   aIface->add_selection = addSelectionCB;

   107   aIface->clear_selection = clearSelectionCB;

   108   aIface->ref_selection = refSelectionCB;

   109   aIface->get_selection_count = getSelectionCountCB;

   110   aIface->is_child_selected = isChildSelectedCB;

   111   aIface->remove_selection = removeSelectionCB;

   112   aIface->select_all_selection = selectAllSelectionCB;

   113 }

The Tor Browser / file revision

accessible/src/atk/nsMaiInterfaceSelection.cpp@97036ab72558

accessible/src/atk/nsMaiInterfaceSelection.cpp