layout/xul/nsStackFrame.h
author Henrik Skupin <mail@hskupin.info>
Fri, 30 Nov 2018 13:27:22 +0000
changeset 448968 cd370c35d88d82c719e7b3d70ae1da003c8cb7f6
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
child 457593 525e804dc7e63855e026be9557af15340d71455a
permissions -rw-r--r--
Bug 1511311 - [marionette] GeckoInstance classes should not overwrite already set custom preferences. r=automatedtester Custom preferences as passed into both classes via the constructor are getting set in the base GeckoInstance class. But both the DesktopInstance and FennecInstance classes could override those custom preferences if they have the same preference set as required preference. As such the custom preference doesn't have any effect. This patch allows both classes to override required prefs with a different value. Differential Revision: https://phabricator.services.mozilla.com/D13522

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/**

  Eric D Vaughan
  A frame that can have multiple children. Only one child may be displayed at
one time. So the can be flipped though like a Stack of cards.

**/

#ifndef nsStackFrame_h___
#define nsStackFrame_h___

#include "mozilla/Attributes.h"
#include "nsBoxFrame.h"

class nsStackFrame final : public nsBoxFrame {
 public:
  NS_DECL_FRAMEARENA_HELPERS(nsStackFrame)

  friend nsIFrame* NS_NewStackFrame(nsIPresShell* aPresShell,
                                    ComputedStyle* aStyle);

#ifdef DEBUG_FRAME_DUMP
  virtual nsresult GetFrameName(nsAString& aResult) const override {
    return MakeFrameName(NS_LITERAL_STRING("Stack"), aResult);
  }
#endif

  virtual void BuildDisplayListForChildren(
      nsDisplayListBuilder* aBuilder, const nsDisplayListSet& aLists) override;

 protected:
  explicit nsStackFrame(ComputedStyle* aStyle);
};  // class nsStackFrame

#endif