The Tor Browser: layout/xul/nsListItemFrame.cpp@7e26c7da4463

     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 #include "nsListItemFrame.h"

     8 #include "nsCOMPtr.h"

     9 #include "nsNameSpaceManager.h"

    10 #include "nsGkAtoms.h"

    11 #include "nsDisplayList.h"

    12 #include "nsBoxLayout.h"

    13 #include <algorithm>

    15 nsListItemFrame::nsListItemFrame(nsIPresShell* aPresShell,

    16                                  nsStyleContext* aContext,

    17                                  bool aIsRoot,

    18                                  nsBoxLayout* aLayoutManager)

    19   : nsGridRowLeafFrame(aPresShell, aContext, aIsRoot, aLayoutManager)

    20 {

    21 }

    23 nsListItemFrame::~nsListItemFrame()

    24 {

    25 }

    27 nsSize

    28 nsListItemFrame::GetPrefSize(nsBoxLayoutState& aState)

    29 {

    30   nsSize size = nsBoxFrame::GetPrefSize(aState);

    31   DISPLAY_PREF_SIZE(this, size);

    33   // guarantee that our preferred height doesn't exceed the standard

    34   // listbox row height

    35   size.height = std::max(mRect.height, size.height);

    36   return size;

    37 }

    39 void

    40 nsListItemFrame::BuildDisplayListForChildren(nsDisplayListBuilder*   aBuilder,

    41                                              const nsRect&           aDirtyRect,

    42                                              const nsDisplayListSet& aLists)

    43 {

    44   if (aBuilder->IsForEventDelivery()) {

    45     if (!mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::allowevents,

    46                                nsGkAtoms::_true, eCaseMatters))

    47       return;

    48   }

    50   nsGridRowLeafFrame::BuildDisplayListForChildren(aBuilder, aDirtyRect, aLists);

    51 }

    53 // Creation Routine ///////////////////////////////////////////////////////////////////////

    55 already_AddRefed<nsBoxLayout> NS_NewGridRowLeafLayout();

    57 nsIFrame*

    58 NS_NewListItemFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)

    59 {

    60   nsCOMPtr<nsBoxLayout> layout = NS_NewGridRowLeafLayout();

    61   if (!layout) {

    62     return nullptr;

    63   }

    65   return new (aPresShell) nsListItemFrame(aPresShell, aContext, false, layout);

    66 }

    68 NS_IMPL_FRAMEARENA_HELPERS(nsListItemFrame)

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