The Tor Browser: layout/style/nsDOMCSSRect.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 /* DOM object representing rectangle values in DOM computed style */

     8 #include "mozilla/dom/RectBinding.h"

     9 #include "nsROCSSPrimitiveValue.h"

    10 #include "nsDOMCSSRect.h"

    12 using namespace mozilla;

    14 nsDOMCSSRect::nsDOMCSSRect(nsROCSSPrimitiveValue* aTop,

    15                            nsROCSSPrimitiveValue* aRight,

    16                            nsROCSSPrimitiveValue* aBottom,

    17                            nsROCSSPrimitiveValue* aLeft)

    18   : mTop(aTop), mRight(aRight), mBottom(aBottom), mLeft(aLeft)

    19 {

    20   SetIsDOMBinding();

    21 }

    23 nsDOMCSSRect::~nsDOMCSSRect(void)

    24 {

    25 }

    27 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsDOMCSSRect)

    28   NS_INTERFACE_MAP_ENTRY(nsIDOMRect)

    29   NS_INTERFACE_MAP_ENTRY(nsISupports)

    30   NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY

    31 NS_INTERFACE_MAP_END

    33 NS_IMPL_CYCLE_COLLECTING_ADDREF(nsDOMCSSRect)

    34 NS_IMPL_CYCLE_COLLECTING_RELEASE(nsDOMCSSRect)

    36 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_4(nsDOMCSSRect, mTop, mBottom, mLeft, mRight)

    38 JSObject*

    39 nsDOMCSSRect::WrapObject(JSContext* cx)

    40 {

    41  return dom::RectBinding::Wrap(cx, this);

    42 }

    44 NS_IMETHODIMP

    45 nsDOMCSSRect::GetTop(nsIDOMCSSPrimitiveValue** aTop)

    46 {

    47   NS_ENSURE_TRUE(mTop, NS_ERROR_NOT_INITIALIZED);

    48   *aTop = mTop;

    49   NS_ADDREF(*aTop);

    50   return NS_OK;

    51 }

    53 NS_IMETHODIMP

    54 nsDOMCSSRect::GetRight(nsIDOMCSSPrimitiveValue** aRight)

    55 {

    56   NS_ENSURE_TRUE(mRight, NS_ERROR_NOT_INITIALIZED);

    57   *aRight = mRight;

    58   NS_ADDREF(*aRight);

    59   return NS_OK;

    60 }

    62 NS_IMETHODIMP

    63 nsDOMCSSRect::GetBottom(nsIDOMCSSPrimitiveValue** aBottom)

    64 {

    65   NS_ENSURE_TRUE(mBottom, NS_ERROR_NOT_INITIALIZED);

    66   *aBottom = mBottom;

    67   NS_ADDREF(*aBottom);

    68   return NS_OK;

    69 }

    71 NS_IMETHODIMP

    72 nsDOMCSSRect::GetLeft(nsIDOMCSSPrimitiveValue** aLeft)

    73 {

    74   NS_ENSURE_TRUE(mLeft, NS_ERROR_NOT_INITIALIZED);

    75   *aLeft = mLeft;

    76   NS_ADDREF(*aLeft);

    77   return NS_OK;

    78 }

The Tor Browser / file revision

layout/style/nsDOMCSSRect.cpp@97036ab72558

layout/style/nsDOMCSSRect.cpp