The Tor Browser: accessible/src/atk/nsMaiInterfaceEditableText.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 "HyperTextAccessible-inl.h"

    11 #include "nsMai.h"

    13 #include "nsString.h"

    14 #include "mozilla/Likely.h"

    16 using namespace mozilla::a11y;

    18 extern "C" {

    19 static void

    20 setTextContentsCB(AtkEditableText *aText, const gchar *aString)

    21 {

    22   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));

    23   if (!accWrap)

    24     return;

    26   HyperTextAccessible* text = accWrap->AsHyperText();

    27   if (!text || !text->IsTextRole())

    28     return;

    30   NS_ConvertUTF8toUTF16 strContent(aString);

    31   text->ReplaceText(strContent);

    32 }

    34 static void

    35 insertTextCB(AtkEditableText *aText,

    36              const gchar *aString, gint aLength, gint *aPosition)

    37 {

    38   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));

    39   if (!accWrap)

    40     return;

    42   HyperTextAccessible* text = accWrap->AsHyperText();

    43   if (!text || !text->IsTextRole())

    44     return;

    46   NS_ConvertUTF8toUTF16 strContent(aString, aLength);

    47   text->InsertText(strContent, *aPosition);

    48 }

    50 static void

    51 copyTextCB(AtkEditableText *aText, gint aStartPos, gint aEndPos)

    52 {

    53   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));

    54   if (!accWrap)

    55     return;

    57   HyperTextAccessible* text = accWrap->AsHyperText();

    58   if (!text || !text->IsTextRole())

    59     return;

    61   text->CopyText(aStartPos, aEndPos);

    62 }

    64 static void

    65 cutTextCB(AtkEditableText *aText, gint aStartPos, gint aEndPos)

    66 {

    67   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));

    68   if (!accWrap)

    69     return;

    71   HyperTextAccessible* text = accWrap->AsHyperText();

    72   if (!text || !text->IsTextRole())

    73     return;

    75   text->CutText(aStartPos, aEndPos);

    76 }

    78 static void

    79 deleteTextCB(AtkEditableText *aText, gint aStartPos, gint aEndPos)

    80 {

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

    82   if (!accWrap)

    83     return;

    85   HyperTextAccessible* text = accWrap->AsHyperText();

    86   if (!text || !text->IsTextRole())

    87     return;

    89   text->DeleteText(aStartPos, aEndPos);

    90 }

    92 static void

    93 pasteTextCB(AtkEditableText *aText, gint aPosition)

    94 {

    95   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));

    96   if (!accWrap)

    97     return;

    99   HyperTextAccessible* text = accWrap->AsHyperText();

   100   if (!text || !text->IsTextRole())

   101     return;

   103   text->PasteText(aPosition);

   104 }

   105 }

   107 void

   108 editableTextInterfaceInitCB(AtkEditableTextIface* aIface)

   109 {

   110   NS_ASSERTION(aIface, "Invalid aIface");

   111   if (MOZ_UNLIKELY(!aIface))

   112     return;

   114   aIface->set_text_contents = setTextContentsCB;

   115   aIface->insert_text = insertTextCB;

   116   aIface->copy_text = copyTextCB;

   117   aIface->cut_text = cutTextCB;

   118   aIface->delete_text = deleteTextCB;

   119   aIface->paste_text = pasteTextCB;

   120 }

The Tor Browser / file revision

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

accessible/src/atk/nsMaiInterfaceEditableText.cpp