layout/xul/nsListItemFrame.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/layout/xul/nsListItemFrame.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,68 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "nsListItemFrame.h"
    1.10 +
    1.11 +#include "nsCOMPtr.h"
    1.12 +#include "nsNameSpaceManager.h"
    1.13 +#include "nsGkAtoms.h"
    1.14 +#include "nsDisplayList.h"
    1.15 +#include "nsBoxLayout.h"
    1.16 +#include <algorithm>
    1.17 +
    1.18 +nsListItemFrame::nsListItemFrame(nsIPresShell* aPresShell,
    1.19 +                                 nsStyleContext* aContext,
    1.20 +                                 bool aIsRoot,
    1.21 +                                 nsBoxLayout* aLayoutManager)
    1.22 +  : nsGridRowLeafFrame(aPresShell, aContext, aIsRoot, aLayoutManager) 
    1.23 +{
    1.24 +}
    1.25 +
    1.26 +nsListItemFrame::~nsListItemFrame()
    1.27 +{
    1.28 +}
    1.29 +
    1.30 +nsSize
    1.31 +nsListItemFrame::GetPrefSize(nsBoxLayoutState& aState)
    1.32 +{
    1.33 +  nsSize size = nsBoxFrame::GetPrefSize(aState);  
    1.34 +  DISPLAY_PREF_SIZE(this, size);
    1.35 +
    1.36 +  // guarantee that our preferred height doesn't exceed the standard
    1.37 +  // listbox row height
    1.38 +  size.height = std::max(mRect.height, size.height);
    1.39 +  return size;
    1.40 +}
    1.41 +
    1.42 +void
    1.43 +nsListItemFrame::BuildDisplayListForChildren(nsDisplayListBuilder*   aBuilder,
    1.44 +                                             const nsRect&           aDirtyRect,
    1.45 +                                             const nsDisplayListSet& aLists)
    1.46 +{
    1.47 +  if (aBuilder->IsForEventDelivery()) {
    1.48 +    if (!mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::allowevents,
    1.49 +                               nsGkAtoms::_true, eCaseMatters))
    1.50 +      return;
    1.51 +  }
    1.52 +  
    1.53 +  nsGridRowLeafFrame::BuildDisplayListForChildren(aBuilder, aDirtyRect, aLists);
    1.54 +}
    1.55 +
    1.56 +// Creation Routine ///////////////////////////////////////////////////////////////////////
    1.57 +
    1.58 +already_AddRefed<nsBoxLayout> NS_NewGridRowLeafLayout();
    1.59 +
    1.60 +nsIFrame*
    1.61 +NS_NewListItemFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
    1.62 +{
    1.63 +  nsCOMPtr<nsBoxLayout> layout = NS_NewGridRowLeafLayout();
    1.64 +  if (!layout) {
    1.65 +    return nullptr;
    1.66 +  }
    1.67 +  
    1.68 +  return new (aPresShell) nsListItemFrame(aPresShell, aContext, false, layout);
    1.69 +}
    1.70 +
    1.71 +NS_IMPL_FRAMEARENA_HELPERS(nsListItemFrame)

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