The Tor Browser: accessible/src/mac/mozHTMLAccessible.mm@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: Objective-C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* vim:expandtab:shiftwidth=2:tabstop=2:

     3  */

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

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

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

     8 #import "mozHTMLAccessible.h"

    10 #import "Accessible-inl.h"

    11 #import "HyperTextAccessible.h"

    13 #import "nsCocoaUtils.h"

    15 @implementation mozHeadingAccessible

    17 - (NSString*)title

    18 {

    19   nsAutoString title;

    20   // XXX use the flattening API when there are available

    21   // see bug 768298

    22   mGeckoAccessible->GetContent()->GetTextContent(title);

    24   return nsCocoaUtils::ToNSString(title);

    25 }

    27 - (id)value

    28 {

    29   if (!mGeckoAccessible || !mGeckoAccessible->IsHyperText())

    30     return nil;

    32   uint32_t level = mGeckoAccessible->AsHyperText()->GetLevelInternal();

    33   return [NSNumber numberWithInt:level];

    34 }

    36 @end

    38 @interface mozLinkAccessible ()

    39 -(NSURL*)url;

    40 @end

    42 @implementation mozLinkAccessible

    44 - (NSArray*)accessibilityAttributeNames

    45 {

    46   // if we're expired, we don't support any attributes.

    47   if (!mGeckoAccessible)

    48     return [NSArray array];

    50   static NSMutableArray* attributes = nil;

    52   if (!attributes) {

    53     attributes = [[super accessibilityAttributeNames] mutableCopy];

    54     [attributes addObject:NSAccessibilityURLAttribute];

    55   }

    57   return attributes;

    58 }

    60 - (id)accessibilityAttributeValue:(NSString *)attribute

    61 {

    62   if ([attribute isEqualToString:NSAccessibilityURLAttribute])

    63     return [self url];

    65   return [super accessibilityAttributeValue:attribute];

    66 }

    68 - (NSArray*)accessibilityActionNames

    69 {

    70     // if we're expired, we don't support any attributes.

    71   if (!mGeckoAccessible)

    72     return [NSArray array];

    74   static NSArray* actionNames = nil;

    76   if (!actionNames) {

    77     actionNames = [[NSArray alloc] initWithObjects:NSAccessibilityPressAction,

    78                                    nil];

    79   }

    81   return actionNames;

    82 }

    84 - (void)accessibilityPerformAction:(NSString*)action

    85 {

    86   if (!mGeckoAccessible)

    87     return;

    89   if ([action isEqualToString:NSAccessibilityPressAction])

    90     mGeckoAccessible->DoAction(0);

    91   else

    92     [super accessibilityPerformAction:action];

    93 }

    95 - (NSString*)customDescription

    96 {

    97   return @"";

    98 }

   100 - (NSString*)value

   101 {

   102   return @"";

   103 }

   105 - (NSURL*)url

   106 {

   107   if (!mGeckoAccessible || mGeckoAccessible->IsDefunct())

   108     return nil;

   110   nsAutoString value;

   111   mGeckoAccessible->Value(value);

   113   NSString* urlString = value.IsEmpty() ? nil : nsCocoaUtils::ToNSString(value);

   114   if (!urlString)

   115     return nil;

   117   return [NSURL URLWithString:urlString];

   118 }

   120 @end

The Tor Browser / file revision

accessible/src/mac/mozHTMLAccessible.mm@97036ab72558

accessible/src/mac/mozHTMLAccessible.mm