6af05a0977
This patch changes the signature to `GetMinISize()`, `GetPrefISize()`, `IntrinsicISize` by adding a helper struct as a preparation. Then we can just add more data such as a percentage basis to the struct without altering the signature in the future. When passing `IntrinsicSizeInput` struct down to another helper method, we generally just pass the original one if the method is computing the intrinsic size of our own or our anonymous children. If the method is computing our children's intrinsic contribution, we'll need to create a brand new `IntrinsicSizeInput` for our children. Differential Revision: https://phabricator.services.mozilla.com/D219521
67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "nsContainerFrame.h"
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#include "nsIAnonymousContentCreator.h"
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#include "nsCOMPtr.h"
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class nsMeterFrame final : public nsContainerFrame,
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public nsIAnonymousContentCreator
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{
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using Element = mozilla::dom::Element;
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public:
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS(nsMeterFrame)
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explicit nsMeterFrame(ComputedStyle* aStyle, nsPresContext* aPresContext);
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virtual ~nsMeterFrame();
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void Destroy(DestroyContext&) override;
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void Reflow(nsPresContext*, ReflowOutput&, const ReflowInput&,
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nsReflowStatus&) override;
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#ifdef DEBUG_FRAME_DUMP
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nsresult GetFrameName(nsAString& aResult) const override {
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return MakeFrameName(u"Meter"_ns, aResult);
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}
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#endif
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// nsIAnonymousContentCreator
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nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) override;
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void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
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uint32_t aFilter) override;
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nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
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int32_t aModType) override;
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nscoord IntrinsicISize(const mozilla::IntrinsicSizeInput& aInput,
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mozilla::IntrinsicISizeType aType) override;
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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, nsPresContext* aPresContext,
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const ReflowInput& aReflowInput,
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const mozilla::LogicalSize& aParentContentBoxSize,
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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<Element> mBarDiv;
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};
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#endif
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