The Tor Browser: layout/xul/nsBoxLayout.h@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 #ifndef nsBoxLayout_h___

     7 #define nsBoxLayout_h___

     9 #include "nsISupports.h"

    10 #include "nsCoord.h"

    11 #include "nsFrameList.h"

    13 class nsIFrame;

    14 class nsBoxLayoutState;

    15 struct nsSize;

    16 struct nsMargin;

    18 #define NS_BOX_LAYOUT_IID \

    19 { 0x09d522a7, 0x304c, 0x4137, \

    20  { 0xaf, 0xc9, 0xe0, 0x80, 0x2e, 0x89, 0xb7, 0xe8 } }

    22 class nsIGridPart;

    24 class nsBoxLayout : public nsISupports {

    26 public:

    28   nsBoxLayout() {}

    29   virtual ~nsBoxLayout() {}

    31   NS_DECL_ISUPPORTS

    33   NS_DECLARE_STATIC_IID_ACCESSOR(NS_BOX_LAYOUT_IID)

    35   NS_IMETHOD Layout(nsIFrame* aBox, nsBoxLayoutState& aState);

    37   virtual nsSize GetPrefSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState);

    38   virtual nsSize GetMinSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState);

    39   virtual nsSize GetMaxSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState);

    40   virtual nscoord GetAscent(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState);

    41   virtual void ChildrenInserted(nsIFrame* aBox, nsBoxLayoutState& aState,

    42                                 nsIFrame* aPrevBox,

    43                                 const nsFrameList::Slice& aNewChildren) {}

    44   virtual void ChildrenAppended(nsIFrame* aBox, nsBoxLayoutState& aState,

    45                                 const nsFrameList::Slice& aNewChildren) {}

    46   virtual void ChildrenRemoved(nsIFrame* aBox, nsBoxLayoutState& aState, nsIFrame* aChildList) {}

    47   virtual void ChildrenSet(nsIFrame* aBox, nsBoxLayoutState& aState, nsIFrame* aChildList) {}

    48   virtual void IntrinsicWidthsDirty(nsIFrame* aBox, nsBoxLayoutState& aState) {}

    50   virtual void AddBorderAndPadding(nsIFrame* aBox, nsSize& aSize);

    51   virtual void AddMargin(nsIFrame* aChild, nsSize& aSize);

    52   virtual void AddMargin(nsSize& aSize, const nsMargin& aMargin);

    54   virtual nsIGridPart* AsGridPart() { return nullptr; }

    56   static void AddLargestSize(nsSize& aSize, const nsSize& aToAdd);

    57   static void AddSmallestSize(nsSize& aSize, const nsSize& aToAdd);

    58 };

    60 NS_DEFINE_STATIC_IID_ACCESSOR(nsBoxLayout, NS_BOX_LAYOUT_IID)

    62 #endif

The Tor Browser / file revision

layout/xul/nsBoxLayout.h@97036ab72558

layout/xul/nsBoxLayout.h