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Diffstat (limited to 'layout/forms/nsMeterFrame.h')
-rw-r--r-- | layout/forms/nsMeterFrame.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/layout/forms/nsMeterFrame.h b/layout/forms/nsMeterFrame.h new file mode 100644 index 0000000000..feb055b1e0 --- /dev/null +++ b/layout/forms/nsMeterFrame.h @@ -0,0 +1,82 @@ +/* -*- 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/. */ + +#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; + + public: + NS_DECL_QUERYFRAME + NS_DECL_FRAMEARENA_HELPERS(nsMeterFrame) + + 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; + +#ifdef DEBUG_FRAME_DUMP + virtual nsresult GetFrameName(nsAString& aResult) const override { + return MakeFrameName(u"Meter"_ns, aResult); + } +#endif + + // 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, + 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; + + protected: + // 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; +}; + +#endif |