зеркало из https://github.com/mozilla/gecko-dev.git
83 строки
2.9 KiB
C++
83 строки
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsMeterFrame_h___
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#define nsMeterFrame_h___
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#include "mozilla/Attributes.h"
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#include "nsContainerFrame.h"
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#include "nsIAnonymousContentCreator.h"
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#include "nsCOMPtr.h"
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class nsMeterFrame : public nsContainerFrame,
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public nsIAnonymousContentCreator
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{
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public:
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NS_DECL_QUERYFRAME_TARGET(nsMeterFrame)
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS
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nsMeterFrame(nsStyleContext* aContext);
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virtual ~nsMeterFrame();
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virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
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NS_IMETHOD Reflow(nsPresContext* aCX,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus) MOZ_OVERRIDE;
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#ifdef DEBUG
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NS_IMETHOD GetFrameName(nsAString& aResult) const MOZ_OVERRIDE {
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return MakeFrameName(NS_LITERAL_STRING("Meter"), aResult);
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}
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#endif
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virtual bool IsLeaf() const MOZ_OVERRIDE { return true; }
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// nsIAnonymousContentCreator
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virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) MOZ_OVERRIDE;
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virtual void AppendAnonymousContentTo(nsBaseContentList& aElements,
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uint32_t aFilter) MOZ_OVERRIDE;
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NS_IMETHOD AttributeChanged(int32_t aNameSpaceID,
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nsIAtom* aAttribute,
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int32_t aModType) MOZ_OVERRIDE;
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virtual nsSize ComputeAutoSize(nsRenderingContext *aRenderingContext,
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nsSize aCBSize, nscoord aAvailableWidth,
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nsSize aMargin, nsSize aBorder,
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nsSize aPadding, bool aShrinkWrap) MOZ_OVERRIDE;
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virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
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virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
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virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
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{
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return nsContainerFrame::IsFrameOfType(aFlags &
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~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
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}
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/**
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* Returns whether the frame and its child should use the native style.
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*/
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bool ShouldUseNativeStyle() const;
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protected:
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// Helper function which reflow the anonymous div frame.
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void ReflowBarFrame(nsIFrame* aBarFrame,
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nsPresContext* aPresContext,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus);
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/**
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* The div used to show the meter bar.
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* @see nsMeterFrame::CreateAnonymousContent
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*/
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nsCOMPtr<nsIContent> mBarDiv;
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};
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#endif
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