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	Changed from returning `bool` & taking an out parameter. Differential Revision: https://phabricator.services.mozilla.com/D168998
		
			
				
	
	
		
			118 lines
		
	
	
	
		
			4.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			118 lines
		
	
	
	
		
			4.4 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 nsHTMLButtonControlFrame_h___
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#define nsHTMLButtonControlFrame_h___
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#include "mozilla/Attributes.h"
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#include "nsContainerFrame.h"
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#include "nsIFormControlFrame.h"
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#include "nsButtonFrameRenderer.h"
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class gfxContext;
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class nsPresContext;
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class nsHTMLButtonControlFrame : public nsContainerFrame,
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                                 public nsIFormControlFrame {
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 public:
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  explicit nsHTMLButtonControlFrame(ComputedStyle* aStyle,
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                                    nsPresContext* aPresContext)
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      : nsHTMLButtonControlFrame(aStyle, aPresContext, kClassID) {}
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  ~nsHTMLButtonControlFrame();
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  NS_DECL_QUERYFRAME
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  NS_DECL_FRAMEARENA_HELPERS(nsHTMLButtonControlFrame)
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  virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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                                const nsDisplayListSet& aLists) override;
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  virtual nscoord GetMinISize(gfxContext* aRenderingContext) override;
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  virtual nscoord GetPrefISize(gfxContext* aRenderingContext) override;
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  virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
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                      const ReflowInput& aReflowInput,
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                      nsReflowStatus& aStatus) override;
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  Maybe<nscoord> GetNaturalBaselineBOffset(
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      mozilla::WritingMode aWM,
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      BaselineSharingGroup aBaselineGroup) const override;
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  virtual nsresult HandleEvent(nsPresContext* aPresContext,
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                               mozilla::WidgetGUIEvent* aEvent,
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                               nsEventStatus* aEventStatus) override;
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  virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
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                    nsIFrame* aPrevInFlow) override;
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  ComputedStyle* GetAdditionalComputedStyle(int32_t aIndex) const override;
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  void SetAdditionalComputedStyle(int32_t aIndex,
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                                  ComputedStyle* aComputedStyle) override;
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#ifdef DEBUG
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  void AppendFrames(ChildListID aListID, nsFrameList&& aFrameList) override;
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  void InsertFrames(ChildListID aListID, nsIFrame* aPrevFrame,
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                    const nsLineList::iterator* aPrevFrameLine,
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                    nsFrameList&& aFrameList) override;
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  virtual void RemoveFrame(ChildListID aListID, nsIFrame* aOldFrame) override;
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#endif
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#ifdef ACCESSIBILITY
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  virtual mozilla::a11y::AccType AccessibleType() override;
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#endif
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#ifdef DEBUG_FRAME_DUMP
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  virtual nsresult GetFrameName(nsAString& aResult) const override {
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    return MakeFrameName(u"HTMLButtonControl"_ns, aResult);
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  }
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#endif
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  // nsIFormControlFrame
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  void SetFocus(bool aOn, bool aRepaint) override;
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  virtual nsresult SetFormProperty(nsAtom* aName,
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                                   const nsAString& aValue) override;
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  // Inserted child content gets its frames parented by our child block
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  virtual nsContainerFrame* GetContentInsertionFrame() override {
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    return PrincipalChildList().FirstChild()->GetContentInsertionFrame();
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  }
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  virtual bool IsFrameOfType(uint32_t aFlags) const override {
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    return nsContainerFrame::IsFrameOfType(
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        aFlags & ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
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  }
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  // Return the ::-moz-button-content anonymous box.
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  void AppendDirectlyOwnedAnonBoxes(nsTArray<OwnedAnonBox>& aResult) override;
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 protected:
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  nsHTMLButtonControlFrame(ComputedStyle* aStyle, nsPresContext* aPresContext,
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                           nsIFrame::ClassID aID);
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  virtual bool IsInput() { return false; }
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  // Indicates whether we should clip our children's painting to our
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  // border-box (either because of "overflow" or because of legacy reasons
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  // about how <input>-flavored buttons work).
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  bool ShouldClipPaintingToBorderBox();
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  // Reflows the button's sole child frame, and computes the desired size
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  // of the button itself from the results.
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  void ReflowButtonContents(nsPresContext* aPresContext,
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                            ReflowOutput& aButtonDesiredSize,
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                            const ReflowInput& aButtonReflowInput,
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                            nsIFrame* aFirstKid);
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  BaselineSharingGroup GetDefaultBaselineSharingGroup() const override;
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  nscoord SynthesizeFallbackBaseline(
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      mozilla::WritingMode aWM,
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      BaselineSharingGroup aBaselineGroup) const override;
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  nsButtonFrameRenderer mRenderer;
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};
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#endif
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