gecko-dev/layout/xul/SimpleXULLeafFrame.h

47 строки
1.7 KiB
C++

/* -*- 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/. */
// A simple frame class for XUL frames that are leafs on the tree but need
// background / border painting, and for some reason or another need special
// code (like event handling code) which we haven't ported to the DOM.
//
// This should generally not be used for new frame classes.
#ifndef mozilla_SimpleXULLeafFrame_h
#define mozilla_SimpleXULLeafFrame_h
#include "nsLeafFrame.h"
namespace mozilla {
// Shared class for thumb and scrollbar buttons.
class SimpleXULLeafFrame : public nsLeafFrame {
public:
NS_DECL_FRAMEARENA_HELPERS(SimpleXULLeafFrame)
// TODO: Look at appearance instead maybe?
nscoord GetIntrinsicISize() override { return 0; }
nscoord GetIntrinsicBSize() override { return 0; }
void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
const ReflowInput& aReflowInput,
nsReflowStatus& aStatus) override;
explicit SimpleXULLeafFrame(ComputedStyle* aStyle,
nsPresContext* aPresContext, ClassID aClassID)
: nsLeafFrame(aStyle, aPresContext, aClassID) {}
explicit SimpleXULLeafFrame(ComputedStyle* aStyle,
nsPresContext* aPresContext)
: SimpleXULLeafFrame(aStyle, aPresContext, kClassID) {}
friend nsIFrame* NS_NewSimpleXULLeafFrame(mozilla::PresShell* aPresShell,
ComputedStyle* aStyle);
};
} // namespace mozilla
#endif