The Tor Browser: accessible/src/html/HTMLElementAccessibles.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 /* 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 #include "HTMLElementAccessibles.h"

     8 #include "DocAccessible.h"

     9 #include "nsAccUtils.h"

    10 #include "nsIAccessibleRelation.h"

    11 #include "nsIPersistentProperties2.h"

    12 #include "nsTextEquivUtils.h"

    13 #include "Relation.h"

    14 #include "Role.h"

    15 #include "States.h"

    17 #include "mozilla/dom/HTMLLabelElement.h"

    19 using namespace mozilla::a11y;

    21 ////////////////////////////////////////////////////////////////////////////////

    22 // HTMLHRAccessible

    23 ////////////////////////////////////////////////////////////////////////////////

    25 role

    26 HTMLHRAccessible::NativeRole()

    27 {

    28   return roles::SEPARATOR;

    29 }

    31 ////////////////////////////////////////////////////////////////////////////////

    32 // HTMLBRAccessible

    33 ////////////////////////////////////////////////////////////////////////////////

    35 role

    36 HTMLBRAccessible::NativeRole()

    37 {

    38   return roles::WHITESPACE;

    39 }

    41 uint64_t

    42 HTMLBRAccessible::NativeState()

    43 {

    44   return states::READONLY;

    45 }

    47 ENameValueFlag

    48 HTMLBRAccessible::NativeName(nsString& aName)

    49 {

    50   aName = static_cast<char16_t>('\n');    // Newline char

    51   return eNameOK;

    52 }

    54 ////////////////////////////////////////////////////////////////////////////////

    55 // HTMLLabelAccessible

    56 ////////////////////////////////////////////////////////////////////////////////

    58 NS_IMPL_ISUPPORTS_INHERITED0(HTMLLabelAccessible, HyperTextAccessible)

    60 ENameValueFlag

    61 HTMLLabelAccessible::NativeName(nsString& aName)

    62 {

    63   nsTextEquivUtils::GetNameFromSubtree(this, aName);

    64   return aName.IsEmpty() ? eNameOK : eNameFromSubtree;

    65 }

    67 Relation

    68 HTMLLabelAccessible::RelationByType(RelationType aType)

    69 {

    70   Relation rel = AccessibleWrap::RelationByType(aType);

    71   if (aType == RelationType::LABEL_FOR) {

    72     nsRefPtr<dom::HTMLLabelElement> label = dom::HTMLLabelElement::FromContent(mContent);

    73     rel.AppendTarget(mDoc, label->GetControl());

    74   }

    76   return rel;

    77 }

    79 role

    80 HTMLLabelAccessible::NativeRole()

    81 {

    82   return roles::LABEL;

    83 }

    85 ////////////////////////////////////////////////////////////////////////////////

    86 // nsHTMLOuputAccessible

    87 ////////////////////////////////////////////////////////////////////////////////

    89 NS_IMPL_ISUPPORTS_INHERITED0(HTMLOutputAccessible, HyperTextAccessible)

    91 Relation

    92 HTMLOutputAccessible::RelationByType(RelationType aType)

    93 {

    94   Relation rel = AccessibleWrap::RelationByType(aType);

    95   if (aType == RelationType::CONTROLLED_BY)

    96     rel.AppendIter(new IDRefsIterator(mDoc, mContent, nsGkAtoms::_for));

    98   return rel;

    99 }

   101 role

   102 HTMLOutputAccessible::NativeRole()

   103 {

   104   return roles::SECTION;

   105 }

   107 already_AddRefed<nsIPersistentProperties>

   108 HTMLOutputAccessible::NativeAttributes()

   109 {

   110   nsCOMPtr<nsIPersistentProperties> attributes =

   111     AccessibleWrap::NativeAttributes();

   112   nsAccUtils::SetAccAttr(attributes, nsGkAtoms::live,

   113                          NS_LITERAL_STRING("polite"));

   115   return attributes.forget();

   116 }

The Tor Browser / file revision

accessible/src/html/HTMLElementAccessibles.cpp@97036ab72558

accessible/src/html/HTMLElementAccessibles.cpp