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/* -*- 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 */
#ifndef nsMeterFrame_h___
#define nsMeterFrame_h___
#include "mozilla/Attributes.h"
#include "nsContainerFrame.h"
#include "nsIAnonymousContentCreator.h"
#include "nsCOMPtr.h"
#include "nsCSSPseudoElements.h"
class nsMeterFrame final : public nsContainerFrame,
public nsIAnonymousContentCreator
typedef mozilla::dom::Element Element;
explicit nsMeterFrame(ComputedStyle* aStyle, nsPresContext* aPresContext);
virtual ~nsMeterFrame();
virtual void DestroyFrom(nsIFrame* aDestructRoot,
PostDestroyData& aPostDestroyData) override;
virtual void Reflow(nsPresContext* aCX, ReflowOutput& aDesiredSize,
const ReflowInput& aReflowInput,
nsReflowStatus& aStatus) override;
virtual nsresult GetFrameName(nsAString& aResult) const override {
return MakeFrameName(u"Meter"_ns, aResult);
// nsIAnonymousContentCreator
virtual nsresult CreateAnonymousContent(
nsTArray<ContentInfo>& aElements) override;
virtual void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
uint32_t aFilter) override;
virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
int32_t aModType) override;
virtual mozilla::LogicalSize ComputeAutoSize(
gfxContext* aRenderingContext, mozilla::WritingMode aWM,
const mozilla::LogicalSize& aCBSize, nscoord aAvailableISize,
const mozilla::LogicalSize& aMargin,
const mozilla::LogicalSize& aBorderPadding,
const mozilla::StyleSizeOverrides& aSizeOverrides,
mozilla::ComputeSizeFlags aFlags) override;
virtual nscoord GetMinISize(gfxContext* aRenderingContext) override;
virtual nscoord GetPrefISize(gfxContext* aRenderingContext) override;
virtual bool IsFrameOfType(uint32_t aFlags) const override {
return nsContainerFrame::IsFrameOfType(
aFlags & ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
* Returns whether the frame and its child should use the native style.
bool ShouldUseNativeStyle() const;
// Helper function which reflow the anonymous div frame.
void ReflowBarFrame(nsIFrame* aBarFrame, nsPresContext* aPresContext,
const ReflowInput& aReflowInput, nsReflowStatus& aStatus);
* The div used to show the meter bar.
* @see nsMeterFrame::CreateAnonymousContent
nsCOMPtr<Element> mBarDiv;